WO2006009190A1 - Storage compartment and refrigerator using the same - Google Patents

Storage compartment and refrigerator using the same Download PDF

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Publication number
WO2006009190A1
WO2006009190A1 PCT/JP2005/013352 JP2005013352W WO2006009190A1 WO 2006009190 A1 WO2006009190 A1 WO 2006009190A1 JP 2005013352 W JP2005013352 W JP 2005013352W WO 2006009190 A1 WO2006009190 A1 WO 2006009190A1
Authority
WO
WIPO (PCT)
Prior art keywords
mist
water
storage
unit
spray
Prior art date
Application number
PCT/JP2005/013352
Other languages
French (fr)
Japanese (ja)
Inventor
Kahoru Tsujimoto
Mitoko Ishita
Toyoshi Kamisako
Kenichi Morishita
Yoshihiro Ueda
Toshinori Noda
Haruyuki Ishio
Kazuyuki Hamada
Tadashi Adachi
Original Assignee
Matsushita Electric Industrial Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to JP2006529263A priority Critical patent/JP4151729B2/en
Priority to CN2005800247925A priority patent/CN1989383B/en
Publication of WO2006009190A1 publication Critical patent/WO2006009190A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/14—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
    • A23B4/18—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of liquids or solids
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/015—Preserving by irradiation or electric treatment without heating effect
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/015—Preserving by irradiation or electric treatment without heating effect
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
    • A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/041—Treating air flowing to refrigeration compartments by purification
    • F25D2317/0413—Treating air flowing to refrigeration compartments by purification by humidification

Definitions

  • the present invention relates to a container having a mist spraying device for facilitating removal of mist by causing toxic substances such as agricultural chemicals adhering to crops such as vegetables and fruits to float, and a refrigerator using the same. About.
  • Japanese Patent Laid-Open No. 9-75050 discloses a food washing apparatus.
  • This food cleaning device has a function of removing harmful substances such as agricultural chemicals adhering to vegetables and fruits.
  • Figure 48 shows such a conventional food cleaning device.
  • Tap water is usually used as the cleaning liquid 2.
  • a supply pipe 12 for supplying the cleaning liquid 2 is connected to the side wall of the cleaning tank 1, and a discharge pipe 13 for discharging the cleaning liquid is connected to the bottom of the cleaning tank 1.
  • the supply pipe 12 and the discharge pipe 13 are provided with solenoid valves 14 and 15, respectively.
  • the bubble generating unit 3 that generates fine bubbles in the cleaning liquid 2 includes an ejector 6, a fluid pump 4, and a branching unit 9.
  • the ejector 6 is provided with a suction pipe 7 for sucking a gas that becomes fine bubbles.
  • the fluid pump 4 conveys the cleaning liquid 2 and pressurizes the cleaning liquid 2 to dissolve the gas.
  • the branch section 9 returns the cleaning liquid 2 in the cleaning tank 1 to the ejector 6 again.
  • This cleaning solution 2 includes fine bubbles deposited by depressurizing the dissolved gas.
  • a transport pipe 5 that transports the cleaning liquid 2 connects the cleaning tank 1 and the ejector 6, and the ejector 6 and the fluid pump 4.
  • the discharge pipe 8 connects the fluid pump 4 and the branching section 9 via the liquid reforming section 16.
  • the return pipe 11 connects the branch portion 9 and the ejector 6.
  • the liquid reforming unit 16 elutes contaminants adhering to food.
  • the liquid reforming section 16 is provided between the fluid pump 4 and the branch section 9.
  • the cleaning liquid 2 is reformed so as to elute the pollutant when it comes into contact with the chlorosilicate compound.
  • the pollution decomposition unit 17 includes an ozone generator 18, a gas pump 19, and a solenoid valve 20.
  • the ozone generator 18 generates ozone using high-pressure discharge.
  • the gas pump 19 supplies the ozone generated by the ozone generator 18 to the cleaning tank 1.
  • the solenoid valve 20 prevents the supply of ozone and the inflow of the cleaning liquid 2.
  • the fluid pump 4 operates, and the cleaning liquid 2 is transported to the ejector 6 through the transport pipe 5.
  • the cleaning liquid 2 entrains the air sucked from the suction pipe 7 provided in the ejector 6.
  • the air entrained in the cleaning liquid 2 is pressurized by the fluid pump 4 and dissolved in the cleaning liquid 2.
  • the cleaning liquid 2 is activated by the liquid reforming unit 16 through the discharge pipe 8. Then, the cleaning liquid 2 is pressurized by the pressure reducing nozzle 10 and ejected into the cleaning tank 1 in a state where fine bubbles are generated by the precipitation of dissolved air. In order to depressurize the pressurized cleaning liquid 2, the pressure reducing nozzle 10 increases the pressure loss and decreases the ejection flow rate. Therefore, the excess cleaning liquid 2 is guided to the return pipe 11 and circulates in the bubble generation unit 3.
  • the pollution decomposition unit 17 is operated, and ozone is supplied to the cleaning liquid 2 in the cleaning tank 1. Agricultural crops such as vegetables and fruits in washing tank 1 are washed with washing liquid 2.
  • the storage of the present invention includes a box and a mist spraying device.
  • the box has a storage room for crops inside.
  • the mist spraying device sprays liquid into the storage chamber to generate mist.
  • the mist spraying device lifts up harmful substances attached to the surface of the crop stored in the storage room, or attaches the mist to the harmful substances attached to the surface of the crop stored in the storage room. .
  • the refrigerator of the present invention is configured by adding a cooling device to the storage and using a heat insulating box as a box.
  • FIG. 1 is a side sectional view of a storage case according to Embodiment 1 of the present invention.
  • FIG. 2 is a side cross-sectional view of a replenishing section in the storage shown in FIG.
  • FIG. 3 is a cross-sectional plan view of a replenishing section in the storage shown in FIG.
  • FIG. 4 is a side cross-sectional view of a storage case in Embodiment 2 of the present invention.
  • FIG. 5 is a side sectional view of the refrigerator in the third embodiment of the present invention.
  • FIG. 6 is a side sectional view of the mist spraying device in the refrigerator shown in FIG.
  • FIG. 7 is a cross-sectional view taken along line AA of the mist spraying apparatus shown in FIG.
  • FIG. 8 is a diagram showing the pesticide removal performance of the mist spraying device shown in FIG.
  • FIG. 9 is a graph showing the characteristics of the pesticide removal performance of the mist spraying apparatus shown in FIG. 6 with respect to the mist particle diameter.
  • FIG. 10 is a diagram showing the characteristics of the mist spraying performance of the mist spraying device shown in FIG. 6 with respect to the mist spray amount.
  • FIG. 11 is a side cross-sectional view of the refrigerator in the fourth embodiment of the present invention.
  • FIG. 12 is a longitudinal sectional view of the mist spraying device for the refrigerator shown in FIG.
  • FIG. 13 is a front view of the vicinity of the mist spraying device shown in FIG.
  • FIG. 14 is a longitudinal sectional view of an essential part of the mist spraying device shown in FIG.
  • FIG. 15 is a functional block diagram of the mist spraying device shown in FIG.
  • FIG. 16 is a control flow diagram of the mist spraying device shown in FIG.
  • FIG. 17 is a longitudinal sectional view of another mist spraying device in Embodiment 4 of the present invention.
  • FIG. 18 is a characteristic of the mist spraying performance of the mist spraying device shown in FIG. 12 with respect to the mist particle diameter.
  • FIG. 19 is a diagram showing the characteristics of the mist spraying performance of the mist spraying apparatus shown in FIG. 12 with respect to the amount of mist spraying.
  • FIG. 20 is a correlation diagram between the particle diameter of mist, the spray amount, and the pesticide removal effect in Embodiment 5 of the present invention.
  • FIG. 21A is a diagram showing characteristics of the pesticide removal performance with respect to the mist particle diameter in the fifth embodiment of the present invention.
  • FIG. 21B is a diagram showing characteristics of the pesticide removal performance with respect to the mist spray amount in the fifth embodiment of the present invention.
  • FIG. 22 is a side cross-sectional view of the refrigerator in the sixth embodiment of the present invention.
  • FIG. 23 is a longitudinal sectional view of the vicinity of the spray section of the refrigerator shown in FIG.
  • FIG. 24 is a longitudinal sectional view of another mist spraying apparatus according to Embodiment 6 of the present invention.
  • FIG. 25 is a front view of the vicinity of the vegetable compartment of the refrigerator according to Embodiment 7 of the present invention.
  • FIG. 26 is a longitudinal sectional view taken along line AA in the vicinity of the vegetable compartment of the refrigerator shown in FIG.
  • FIG. 27A is a side sectional view of the refrigerator in the eighth embodiment of the present invention.
  • FIG. 27B is a partial front view schematically showing the refrigerator shown in FIG. 27A.
  • FIG. 28 is a side sectional view of the vicinity of the vegetable compartment of the refrigerator according to the ninth embodiment of the present invention.
  • FIG. 29 is a front sectional view of the vicinity of the vegetable compartment of the refrigerator shown in FIG.
  • FIG. 30 is a cross-sectional view of the principal part showing the AA cross section in FIG. 29.
  • FIG. FIG. 31 is a cross-sectional view of the principal part showing the BB cross section in FIG. 29.
  • FIG. 32 is a graph showing a particle size distribution ratio of mist sprayed in the ninth embodiment of the present invention.
  • FIG. 33 is a side sectional view of the refrigerator in the tenth embodiment of the present invention.
  • FIG. 34 is a side sectional view of the vegetable compartment of the refrigerator shown in FIG.
  • FIG. 35 is an enlarged view of a main part of the mist spraying device for the refrigerator shown in FIG.
  • FIG. 36 is a diagram showing the pesticide removal performance of ozone water mist in the refrigerator shown in FIG. 33.
  • FIG. 37 is an enlarged view of a main part of another mist spraying apparatus for a refrigerator according to Embodiment 10 of the present invention.
  • FIG. 38 is an enlarged view of a main part of still another mist spraying device for a refrigerator according to Embodiment 10 of the present invention.
  • FIG. 39 is a side sectional view of the refrigerator in the eleventh embodiment of the present invention.
  • FIG. 40 is a block diagram of a control system in the refrigerator shown in FIG.
  • FIG. 41 is a diagram showing the pesticide removal performance of the refrigerator mist spraying device and the decomposition unit shown in FIG.
  • FIG. 42 is a diagram showing the proportion of pesticides remaining in the wash water after the treatment by the mist spraying device and the decomposition unit of the refrigerator shown in FIG. 39.
  • FIG. 43 is a side sectional view of another refrigerator according to the eleventh embodiment of the present invention.
  • FIG. 44 is a block diagram of a control system in the refrigerator shown in FIG. 43.
  • FIG. 45 is a diagram showing the decomposition performance according to the irradiation time of the decomposition section of the refrigerator shown in FIG.
  • FIG. 46 is a side sectional view of still another refrigerator according to Embodiment 11 of the present invention.
  • FIG. 47 is a block diagram of a control system in the refrigerator shown in FIG. 46.
  • FIG. 48 is a schematic configuration diagram of a conventional food washing apparatus.
  • the storage according to the present invention includes a box and a mist spraying device.
  • the box has a storage room for crops inside.
  • the mist spraying device generates a mist by spraying a liquid in the storage chamber, so that the mist causes the harmful substances of agricultural chemicals adhering to the surface of the crop stored in the storage chamber to rise, or the mist is stored in the storage chamber. Adhere to the harmful substances of pesticides attached to the surface of the cultivated crops. As a result, the sprayed mist enters the fine recesses on the crop surface, and the pesticidal harmful substances remaining in the recesses are removed by the synergistic effect of the physical and chemical action. Or, by attaching mist to harmful substances such as pesticide residues, the harmful substances are lifted with a small amount of water to facilitate removal.
  • Such a configuration can be applied to various forms for storing agricultural products such as vegetable rooms in refrigerators and containers for distribution.
  • a transport container used for transporting crops is used as a box.
  • harmful substances can be removed or lifted before the food stored in the storage room is delivered to the consumer.
  • FIG. 1 is a side cross-sectional view of a storage case according to Embodiment 1 of the present invention
  • FIG. 2 is the storage shown in FIG. It is a sectional side view of the water supply part in a store
  • FIG. 3 is a cross-sectional plan view of the replenishing section in the storage shown in FIG.
  • the storage 70 is provided with a storage room 71 for storing agricultural products in the box 60.
  • the storage 70 also has a mist spraying device 61 inside the storage chamber 71.
  • the box 60 is a transportation container and is mounted on the automobile 62 and used for transportation. In addition, it may be transported on board an airplane or ship.
  • the mist spraying device 61 includes a water storage tank 72, a water supply path 73, and a replenishment unit 74. From the water storage tank 72, the water supply path 73 supplies water to the supply section 74. The supply part 74 is provided on the upper top surface of the storage room 71.
  • the replenishing unit 74 includes a water storage tank 75 that is a holding unit for storing water, a spraying unit 76, and a blower unit 77 that blows mist generated by the spraying unit 76 into the storage chamber 71.
  • the spray unit 76 includes a metal mesh 81 and a metal plate 82 located at the bottom of the water storage tank 75, an ultrasonic element 80 and a power source 83 provided outside.
  • the ultrasonic element 80 atomizes water by an ultrasonic method.
  • the metal mesh 81 transmits only mist having a predetermined particle size or less.
  • the stored water 84 in the water tank 75 is supplied from the water supply path 73 and stored in the water tank 75.
  • a temperature sensor 85 that detects the temperature in the storage is provided at one corner of the storage room 71.
  • the water stored in the water storage tank 72 is supplied into the water storage tank 75 via the water supply path 73 and stored as the stored water 84.
  • the stored water 84 is atomized by the ultrasonic element 80.
  • the replenishment section 74 is filled with mist of a predetermined particle or less.
  • the fine mist in the replenishing section 74 is sprayed as mist in the storage chamber 71 by the blower section 77.
  • the fine mist adheres to the surface of crops such as vegetables and fruits in the storage room 71 and penetrates into the fine recesses on the surface of the crops.
  • Hazardous substances such as residual agricultural chemicals and wax are lifted by the internal pressure energy of this fine mist.
  • the mist adheres and the harmful substances are removed more easily than in the case.
  • the mist when the mist is charged, it electrically enters the fine recesses on the crop surface and chemically reacts with residual agricultural chemicals and wax. Therefore, the hydrophilicity of harmful substances It is taken up in the mist and decomposed and removed.
  • the mist may only be attached to the harmful substance.
  • toxic substances are dissolved in the mist, or mist is dissolved in the toxic substances to dilute the toxic substances.
  • the mist adheres and the harmful substances are removed more easily than in the case.
  • Mist refers to water that has been split into fine particles and formed into an ultrafine particle. Its particle diameter ranges from a visible number of m to a number of invisible nm, and the properties of the liquid. have
  • an appropriate amount of fine mist that can enter the recesses of the cell gaps with the mist spraying device 61 is sprayed with respect to the agricultural products being stored in the storage chamber 71.
  • the sprayed mist enters the fine recesses on the surface of the crop, causing harmful substances such as residual pesticides attached to the surface of the crop stored in the storage room 71 to rise, or using the mist as a harmful substance.
  • harmful substances such as residual pesticides attached to the surface of the crop stored in the storage room 71 to rise, or using the mist as a harmful substance.
  • Vegetables and fruits are transported to a supermarket or the like after harvesting, but transportation requires a long time. Using this time, mist is sprayed on vegetables and fruits stored in the storage room 71. As a result, pre-treatment for facilitating the removal of residual pesticides can be performed so that consumers can live with a safe diet.
  • the spray unit 76 of the type that generates mist by vibration energy finely divides water droplets using vibration energy of high frequency. That is, an atomizer that generates mist by vibration energy does not decompose water particles by electrolysis or the like, so that there are cases where misting can occur without changing water components.
  • the device is configured to mistoy the water component as it is depending on how vibrational energy is applied, for example, some component is compared with pure water such as alkaline ion water or negative ion water. Even if the added functional water is used, it becomes possible to misto the components as they are, and any water that meets the needs of the user can be supplied as a mist.
  • the temperature zone can be adjusted.
  • the temperature sensor 85 detects a temperature higher than a preset temperature, If the cooling device is operated, the freshness of the crops can be maintained in the refrigerated temperature zone at high temperatures such as in summer.
  • the humidity in the storage room 71 becomes 90% or higher, the vegetation of the vegetables, in particular, can be prevented from evaporating, and the deterioration rate of the food stored in the storage room 71 becomes slow. This improves the efficiency of hydration by mist.
  • the humidity sensor is provided in the storage chamber 71, and the spraying section 76 is driven according to the change in the air quality in the storage chamber 71, thereby improving the hydration efficiency by mist. Can be made.
  • the spray unit 76 of the type that generates mist by vibration energy finely divides water droplets using vibration energy of high frequency.
  • the particle diameter of the mist is adjusted by V using the metal mesh 81 for the ultrasonic element 80 in the spray unit 76, but the metal facing the metal mesh 81 is used.
  • the particle size of the mist can be adjusted by making the particle size of the mist finer. Is possible.
  • the fine mist added with negative charges adheres to the positively charged interior walls, vegetables, fruit surfaces, etc., and the mist enters the interior walls and the fine holes on the vegetables and fruits surfaces. Mu Therefore, it is easier to lift and remove the harmful substances attached to the vegetable surface.
  • a storage container used for storing crops after harvesting is used as a box. This allows harmful substances to be removed or lifted before shipping the food stored in the storage room. It is also possible to remove or lift harmful substances using the storage time.
  • FIG. 4 is a side cross-sectional view of the storage case according to Embodiment 2 of the present invention.
  • the storage 90 in the present embodiment has a box 63 and a mist spraying device 61.
  • Box 63 is a storage container and is used to store crops after harvesting.
  • the other configuration is the same as that of the first embodiment.
  • the box 63 is used for storing food after harvesting crops such as vegetables and fruits stored in the storage room 71.
  • crops such as vegetables and fruits stored in the storage room 71.
  • the mist spraying device 61 in the storage chamber 71 in such a box 63 the mist is sprayed on the crops stored in the storage chamber 71 using the time during the storage in the storage chamber 71. Is done. This makes it possible to perform pre-treatment to facilitate the removal of residual pesticides so that consumers can live with peace of mind. This makes it possible to remove the agricultural chemicals in a storage state before being sold at a store, for example, and to provide a safer vegetable for consumers.
  • Preference for atomization, the effect of charging liquid, mist, the effect of imparting a temperature adjustment function, and the like are the same as in the first embodiment.
  • the storage of the present invention includes a box and a mist spraying device.
  • the box has a storage room for storing crops.
  • the mist spraying device has a spraying section for spraying liquid into the storage chamber.
  • the mist spraying device lifts up harmful substances such as residual agricultural chemicals attached to the crop surface by the generated mist. Or attach mist to harmful substances such as residual agricultural chemicals.
  • the sprayed mist enters the fine recesses on the surface of the crop, and the harmful substances of the pesticide remaining in the recesses are removed by the synergistic effect of the physical and chemical action of the mist. Therefore, harmful substances such as pesticides can be lifted with a small amount of water, or mist adheres to harmful substances such as residual agricultural chemicals. Therefore, it is easy to remove harmful substances.
  • the storage box of the present invention is provided with a water storage tank as a holding unit for holding the liquid.
  • a water storage tank as a holding unit for holding the liquid.
  • the mist spraying device of the storage of the present invention has a water storage tank as a supply unit.
  • the water is retained by the user supplying water into the external-powered storage tank. This allows the user to always replenish fresh water and to store a certain amount of stored water in advance. Therefore, even when there are many foods stored in the storage room, a sufficient amount of water can be replenished.
  • the holding unit of the storage of the present invention holds the water extracted from the moisture power contained in the air in the storage chamber.
  • the stored water retained in this way is retained in the water retention device.
  • the user can replenish the food stored in the storage chamber without replenishing water from the outside, so that maintenance is not time-consuming.
  • the mist spraying part of the storage of the present invention has a spraying tip part which is a part from which mist is discharged, and at least the spraying tip part is provided in the storage chamber. Therefore, mist particles can be sprayed directly to the storage room where the crops are stored. Also spray tip The distance between the department and the crop can be further reduced. Therefore, for example, the mist particles can be prevented from being vaporized as compared with the case where the mist is sprayed outside the storage chamber and the force is also fed into the storage chamber. In addition, the flow rate of mist in the floating state can be increased, and the adhesion rate of mist to the crop surface can be further increased.
  • the supply section in the mist spraying device of the storage of the present invention is provided with a spray section and is provided in a section different from the section!
  • the supply unit can be provided at any position that is not affected by the position of the spray unit and that facilitates replenishment of water into the water storage tank and cleaning of the water storage tank. As a result, the user convenience is improved.
  • the spray part in the present invention generates a mist having a particle size of 0.003 m to 20 m, so that the mist efficiently invades the fine recesses on the surface of the crop. Therefore, harmful substances such as agricultural chemicals can be lifted up to the details.
  • the amount of mist sprayed in the spray section in the present invention is 0.0007-0.14 g / h'U, so that an amount necessary to lift harmful substances such as agricultural chemicals is sprayed. As a result, both the effect of removing harmful substances such as agricultural chemicals and storage stability are achieved.
  • the mist generated in the mist spraying apparatus of the present invention is an acid-decomposable mist, so that the mist has an oxidative degradation power and oxidatively decomposes harmful substances such as agricultural chemicals to increase hydrophilicity. . Therefore, the effect of raising harmful substances such as agricultural chemicals is improved.
  • the mist generated in the mist spraying apparatus of the present invention is ozone mist.
  • harmful substances such as agricultural chemicals are strongly oxidized and decomposed, and the harmful substances can be converted into safe substances by decomposition.
  • the mist generated in the mist spraying apparatus of the present invention is made into an alkali-decomposable mist, so that the mist has an alkali-decomposable property, so that harmful substances such as agricultural chemicals are alkali-degraded and converted into safe substances. be able to.
  • the mist generated by the mist spraying apparatus in the present invention is a mist containing radicals, which decomposes harmful substances such as agricultural chemicals and converts them into safe substances by the strong acid-oxidizing ability of radicals. Can do.
  • the spray section in the present invention generates mist by an electrostatic atomization method.
  • high-voltage electrical energy is used to break up and subdivide the water droplets. Since the fine mist is generated, the generated mist is charged. For this reason, the mist adheres to the crops due to the positive and negative adsorptive power of the charge, and the mist adheres more uniformly to the vegetable surface.
  • the mist adherence rate is further improved compared to the charged mist! / ,! As a result, it becomes possible to remove the agricultural chemicals more effectively.
  • the mist spray amount of the spray portion of the electrostatic atomization method in the present invention is preferably set to 0.0007 to 0.007 g / h'L.
  • the mist generated by the spraying part of the electrostatic atomization system is charged and the mist adheres to the crops at a high rate. Therefore, compared with the case of spraying a mist of an uncharged type, the same adhesion rate can be obtained, and the removal of agricultural chemicals can be performed more effectively.
  • the spray portion in the present invention generates mist having a particle size of 0.003-0.
  • an electrostatic atomization spray unit When an electrostatic atomization spray unit is used, the charged energy of the mist becomes weaker as the particle diameter of the mist increases.
  • an electrostatic atomization method within the above particle size range, it is possible to generate mist with a sufficient charge to increase the adhesion rate to vegetables. Can be more effectively removed.
  • an ultrasonic atomizing spray unit can be used.
  • mist is generated by such a spraying section, water droplets are finely divided using high-frequency vibration energy. Therefore, it is possible to obtain a fine mist with a low voltage without requiring a high voltage when producing the fine mist. As a result, the safety associated with the generation of mist can be further enhanced and energy saving can be achieved.
  • the amount of mist sprayed in the spray section of the ultrasonic atomization method in the present invention is preferably set to 0.014-0.14g Zh'L.
  • an ultrasonic atomizing spray unit When an ultrasonic atomizing spray unit is used, water droplets are finely dispersed using high-frequency vibration energy, so as the spray amount decreases, the generated vibration energy decreases and the mist sprayed. The kinetic energy given to becomes smaller. For this reason, the flying distance of mist tends to be small.
  • the ultrasonic atomization method within the range of the amount of mist, it is possible to generate mist that has diffusibility into the warehouse and has a flight distance that reaches the vegetable surface. It becomes possible to remove agricultural chemicals more effectively by the sonic atomization method.
  • the mist particle diameter of the spray portion of the ultrasonic atomization method in the present invention is set to 0.5 to 20 ⁇ m. It is preferable. In the case of using an ultrasonic atomization spray section, it is necessary to finely drop water droplets using vibration energy at a high frequency as the particle diameter of the mist is reduced. For this reason, the higher the frequency, the greater the number of vibrations and the shorter the lifetime of the ultrasonic atomization method. However, by using the ultrasonic atomization method within the above particle size range, sufficient durability is ensured even in refrigerators that require long-term durability, especially among household appliances with an average service life of about 10 years. Sex is obtained. Therefore, it becomes possible to further improve the reliability of removing agricultural chemicals by the ultrasonic atomization method.
  • FIG. 5 is a side sectional view of the refrigerator according to Embodiment 3 of the present invention.
  • FIGS. 6 and 7 are a side sectional view and a sectional view taken along line AA of the mist spraying device in the refrigerator shown in FIG. 5, respectively.
  • the heat insulating box 110 is partitioned from above by the partition plate 111 into a refrigerator compartment 112, a switching compartment 113, a vegetable compartment 114, and a freezer compartment 115.
  • An evaporator 102 is provided at the back of the freezer compartment 115.
  • the evaporator 102 is connected with a compressor 104 provided in the machine room 103, a condenser 105 provided in the lower part of the refrigerator, and an expansion valve (not shown) through a pipe, which compresses and evaporates the refrigerant sealed inside. This constitutes a cooling device that cools the inside of the refrigerator.
  • the cold air generated in the evaporator 102 is cooled by being conveyed to each storage room via the air passage 229.
  • the inside of the switching chamber 113 can be used by switching whether it is kept at the refrigeration temperature by being cooled by the evaporator 102 through a ventilation path (not shown).
  • a partition plate 111A for separating the air passage 229 and the vegetable compartment 114 is disposed on the back of the vegetable compartment 114.
  • An air passage 229 is provided between the partition plate 111A and the main body outer wall 202.
  • the air path 229 conveys, for example, the cold air generated in the evaporator 102 to each storage chamber, or conveys the heat exchanged air from each storage chamber to the evaporator 102. That is, a vegetable room 114 which is a storage room for storing agricultural products is provided inside the heat insulation box 110 which is a box.
  • the cooling device cools the inside of the vegetable compartment 114.
  • the vegetable compartment 114 is constituted by a heat insulating wall 116, and the inside of the vegetable compartment 114 is kept at a humidity of about 90% RH or more (when food is stored) and cooled to 4 to 6 ° C.
  • a mist spraying device 120 is provided on top of vegetable room 114.
  • the mist spraying device 120 includes a water storage tank 122 that stores the stored water 124, a spraying unit 123, and a blowing unit 129 that blows the mist generated by the spraying unit 123 into the vegetable compartment 114.
  • the spraying section 123 is located inside the water tank 122.
  • the spray unit 123 includes a capillary supply structure 133, a cathode 134 as a first electrode, an anode 135 as a second electrode, and a power source 128.
  • One end of the capillary supply structure 133 is immersed in the stored water 124, and the other end forms a spray tip portion 132 in the water storage tank 122. That is, the spray tip 132 is provided in the vegetable compartment 114.
  • the negative electrode 134 and the positive electrode 135 are installed in a section of the water storage tank 122.
  • the cathode 134 applies a negative high voltage to the stored water 124.
  • the anode 135 faces the cathode 134.
  • the power supply 128 applies a high voltage between the cathode 134 and the anode 135.
  • defrost water is stored in the water storage tank 122 to become the stored water 124. That is, the water storage tank 122 is a holding unit that extracts and holds the moisture contained in the air in the vegetable compartment 114.
  • the power supply 128 applies a high voltage between the cathode 134 and the anode 135. Then, a plurality of liquid yarns are drawn from the spray tip 132 by the electric field that exists between the spray tip 132 and the anode 135. This liquid yarn is further dispersed into charged droplets, resulting in a fine mist of 0.1 m or less.
  • discharge occurs during electrostatic atomization, trace amounts of ozone and radicals are generated at the same time when mist is generated. This ozone mixes immediately with the mist to produce a low concentration of ozone mist.
  • a radical is a molecule having an unpaired electron and strong acidity.
  • This ozone mist is sprayed into the vegetable compartment 114 by the blower 129. Since the sprayed ozone mist is electrostatically added, it adheres electrically to the surface of agricultural products such as vegetables and fruits that are positively charged in the vegetable compartment 114 and to the inner wall surface. It then penetrates into the fine recesses on the surface of the crop. Hazardous substances such as residual agricultural chemicals and wax are lifted by the internal pressure energy of the mist. As a result, when the user washed the crops with water, the pesticides are more easily removed than when the mist is not attached. Furthermore, harmful substances are oxidatively decomposed and removed by the oxidative degradation of ozone. Or electrical The mist that has entered the fine recesses chemically reacts with harmful substances. This increases the hydrophilicity of harmful substances, which are taken up and decomposed in the mist.
  • the harmful substance dissolves in the mist only by attaching the mist to the harmful substance, for example. Or, the mist dissolves in the hazardous substance and the harmful substance is diluted, so that when the user wash the crop with water, the mist adheres more easily than in the case. Removed.
  • the mist spraying device 120 generates fine mist by breaking up and subdividing water droplets using electric energy.
  • the mist spraying device 120 uses an electrostatic atomization method. Therefore, the generated mist is charged, and attaches to the crops by the positive and negative adsorption power of the charge. Therefore, mist adheres uniformly to the crop surface.
  • the adhesion rate to crops is improved compared to mist that is not charged. Therefore, harmful substances such as agricultural chemicals are effectively removed.
  • FIG. 8 is a diagram comparing the pesticide removal performance of the mist spraying device 120 shown in FIG. 6 with conventional immersion specifications and washing with water.
  • 10 cherry tomatoes with about 3 ppm of malathion were used and removed according to each specification.
  • the removal rate is calculated by measuring the residual malathion concentration after treatment by gas chromatography (GC).
  • treatment A place the above 10 cherry tomatoes in a bowl and wash with running water for about 10 seconds.
  • Process B is equivalent to a process using a general food cleaning device. 10 cherry tomatoes are immersed in 2 L of water containing 1 ppm of ozone for 1 hour, and bubbles are cleaned with ozone.
  • treatment C 10 cherry tomatoes are subjected to mist spray treatment for 12 hours using a mist spraying device 120.
  • treatment D 10 cherry tomatoes are sprayed with mist for 12 hours, then placed in a basket and washed with running water for about 10 seconds.
  • the ozone gas concentration in Process C and Process D is about 0.03 ppm.
  • the particle size of mist in treatment C and treatment D is 0.003 ⁇ m. The amount is 0.0007 g / h'L.
  • the removal rate in the treatment A is 20%, and it can be seen that 80% of the residual agricultural chemicals are not removed by ordinary water washing, and are taken into the human body. Treatment B also removes 55% of the pesticide residue.
  • the removal rate of treatment C was 50%, indicating that the removal efficiency of pesticide was almost the same as treatment B. Furthermore, the removal rate for treatment D is 70%. This is thought to be due to the attached pesticides floating up and coming off easily due to the physical action of ultra fine mist. From the above results, the refrigerator having the mist spraying device 120 in the present embodiment has almost the same pesticide removal performance as a dedicated food washing machine.
  • FIG. 9 is a diagram showing the relationship between the agrochemical removal effect of the mist spraying device 120 and the water particle diameter of the mist in the present embodiment.
  • the mist spraying time and spraying amount are the same as in processes C and D in Fig. 8.
  • the malathion removal rate is about 50% when the mist particle size is 0.5 ⁇ m or less.
  • the reason why the removal rate of malathion is about 70% is that the mist particle size is 0.1 ⁇ m or less. This is considered to be because the mist particle size becomes finer and the surface of the crop surface easily gets into the irregularities. In other words, it is considered that the finer the mist particle size, the more easily harmful substances adhere to the mist particles, or it becomes easier to incorporate harmful substances into the mist particles.
  • the removal rate is reduced. This is presumably because, when the spray part 123 is of the electrostatic atomization type, the charged energy of the charge becomes weaker as the particle diameter of the mist increases. Therefore, when applying the electrostatic atomization method, controlling the mist particle size to 0.5 m or less generates mist with sufficient charge to increase the adhesion rate to crops.
  • the reason why the malathion removal rate is about 50% is that the particle diameter of the mist is 0.003 ⁇ m or more.
  • the reason why the removal rate of malathion is about 70% is that the mist particle size is 0.005 m or more. This is presumably because when the water particle size is less than 0.003 ⁇ m, the particles are too small, the frequency of contact with malathion decreases, and the removal effect decreases.
  • the particle diameter is 0.005 ⁇ m or more as compared with the case where the particle diameter of the mist exceeds 0.1 ⁇ m. .
  • the removal rate is higher in the case of 1 ⁇ m or less. This is thought to be due to the large number of radicals when the particle size is small. For this reason, the reactivity with malathion increases and the removal rate increases.
  • the mist particle size in order to achieve a pesticide removal rate of 50% or more with the electrostatic mist type mist spraying device 120, the mist particle size should be 0.003 111 to 0.5 m. In order to achieve a pesticide removal rate of 70% or more, the mist particle size should be 0.005 ⁇ m or more and 0.1 ⁇ m or less. In order to control the mist particle size in this way, in this experiment, the particle size was adjusted by changing the applied voltage to the mist spraying device 120. For example, the diameter and length of the capillary supply structure 133 were changed. However, the particle diameter can be adjusted.
  • FIG. 10 is a diagram showing the relationship between the agrochemical removal effect of the mist spraying device 120 and the mist spray amount in the present embodiment.
  • the mist spraying time and mist particle size are the same as those of Processes C and D in Fig. 8.
  • the volume of the vegetable compartment in this experiment is 70 liters (L).
  • the spray amount needs to be 0.007 gZh'L or more, and the pesticide removal effect improves as the spray amount increases. ing.
  • the spray amount exceeds 0.007gZh'L, although there is a pesticide removal effect, the generated ozone concentration exceeds 0.03ppm.
  • the ozone concentration of 0.03 ppm is a level that does not cause ozone odor and is the upper limit of the ozone concentration that has a pesticide-degrading effect without causing adverse effects such as tissue damage to vegetables.
  • the appropriate range of spray amount is 0.0007 gZh'L or more and 0.007 gZh'L or less.
  • the ozone decomposition catalyst If the ozone concentration can be reduced with an ozone decomposition catalyst ozone decomposition device, etc., even if it is 0.07 gZh'L or more, the spray amount will be 10 times, for example, 0.0g / h-L. May increase. This upper limit expansion range depends on the capacity of the added ozonolysis catalyst.
  • a refrigerator having a simple structure and a function of removing harmful substances such as agricultural chemicals can be obtained. Users can easily remove pesticides and other harmful substances simply by storing vegetables and fruits in the refrigerator.
  • the mist spraying device 120 sprays the mist into the vegetable compartment 114.
  • the sprayed mist enters the fine recesses on the crop surface and removes harmful substances such as pesticides remaining in the recesses by the synergistic effect of physical and chemical action. In this way, harmful substances such as pesticides can be removed with a small amount of water.
  • the mist spraying device 120 generates mist having a particle size useful for removing agricultural chemicals on the surface of agricultural products. As a result, the mist efficiently penetrates into the fine recesses on the crop surface and removes harmful substances such as agricultural chemicals to the finest detail.
  • the particle diameter of the mist is preferably 0.003 m or more and 0.5 m or less.
  • the mist spray amount of the mist spray device 120 is preferably set to 0.007 gZh'L or more and 0.07 g / h'L or less. As a result, the amount of spray necessary for removal of harmful substances is secured, the removal effect of harmful substances is demonstrated, and the preservation of crops is also secured.
  • the fine mist adheres to the surface of the crop using the potential difference between the fine mist and the crop.
  • ozone-containing mist is generated by generating mist by the electrostatic atomization method.
  • oxidatively-decomposable mist other than ozone or alkali-decomposable mist is used. You may spray.
  • the effect of decomposing harmful substances such as pesticides on the surface of crops is enhanced.
  • the effect of removing dirt and odor in the storage and decomposition The effect to do increases.
  • the spray unit 123 in the present embodiment generates mist by an electrostatic atomization method.
  • a spray unit that electrostatically loads a mist that is miniaturized using an ultrasonic element and a metal mesh may be used.
  • the same effect can be obtained by using a spray unit that electrostatically loads the mist that has been refined by increasing the frequency of the ultrasonic element.
  • ozone gas generated by discharge is dissolved in the sprayed mist.
  • the same effect can be obtained if the stored water is ozone water or functional water with high reactivity.
  • the water tank 122 holds a liquid for generating mist and does not always hold water.
  • the holding unit that holds the stored water is the water storage tank 122, and the water storage tank 122 holds the stored water 124 that is defrost water.
  • a moisture absorbent may be used as a holding part to extract and hold the moisture contained in the air in the vegetable compartment 114! / ⁇ ⁇ ⁇ .
  • the hygroscopic agent for example, porous materials such as silica gel, zeolite and activated carbon can be used. In this way, if defrosted water can be used to secure the stored water without the need for the user to supply the stored water from the outside, the user-friendliness is improved without the need for external water replenishment. To do.
  • FIG. 11 is a cross-sectional view of the refrigerator in the fourth embodiment of the present invention.
  • 12 and 13 are a longitudinal sectional view and a front view of the vicinity of the mist spraying device of the refrigerator shown in FIG. 11, respectively.
  • FIG. 14 is a view showing a longitudinal section and an amplitude waveform of the spray section of the mist spraying apparatus shown in FIG.
  • FIG. 15 is a functional block diagram of the refrigerator shown in FIG.
  • FIG. 16 is a control flowchart in the control unit shown in FIG.
  • FIG. 18 is a graph showing the relationship between the pesticide removal effect of the mist spraying device shown in FIG. 12 and the water particle diameter of the mist.
  • FIG. 19 is a graph showing the relationship between the pesticide removal effect and the amount of mist sprayed by the mist spraying device shown in FIG.
  • This refrigerator differs from the refrigerator shown in FIG. 5 in that a mist spraying device 302 is provided on the partition plate 111A, and an ozone generator 323 is provided on the top surface of the vegetable compartment 114.
  • the other basic configuration is the same as that of the refrigerator shown in FIG. In the vegetable room 114 Container 228 is installed.
  • the partition plate 111A incorporates a mist spraying device 302 having a spraying portion 301 of an ultrasonic atomization system!
  • Partition plate 111A is mainly composed of a heat insulating material such as polystyrene foam, and its wall thickness is about 30 mm. However, on the back of the supply unit 304, the wall thickness is 5 to 10 mm.
  • the supply unit 304 holds the stored water and supplies the stored water to the spray unit 301.
  • the supply unit 304 includes a water collecting plate 321, a heating unit 328, a blower unit 317, and a cover member 306.
  • the water collecting plate 321 is installed inside the cabinet, and the heating unit 328 is disposed in contact with one surface of the water collecting plate 321.
  • the heating unit 328 is, for example, a heater composed of nichrome wire.
  • the air blower 317 is a box fan or the like, and is arranged inside the warehouse to send the air in the warehouse to the water collecting plate 321.
  • the cover member 306 constitutes a circulation air passage 307.
  • the cover member 306 includes a first circulation air passage opening (hereinafter referred to as an opening) 308 and a second circulation air passage opening (hereinafter referred to as an opening) related to the circulation air passage 307. 309 and is provided. Further, the water collection plate 321 is provided with a water collection plate temperature detection unit (hereinafter, detection unit) 327 for detecting the temperature of the surface of the water collection plate 321.
  • detection unit water collection plate temperature detection unit
  • the spray section 301 has a horn 310 and a piezoelectric element 311.
  • the horn 310 is formed in a substantially conical shape by cutting or the like, and the spray tip 310 A of the horn 310 is opened at least in the vegetable compartment 114.
  • a flange portion 312 is formed integrally with the horn 310 on the piezoelectric element 311 side.
  • the horn 310 and the piezoelectric element 311 are fixedly bonded. Due to the shape of the horn 310, the vibration generated in the piezoelectric element 311 is amplified to a maximum amplitude at the spray tip end 310A.
  • the spray part 301 is attached to a connection part 305 that is an attachment member on the refrigerator side via a flange part 312. Or it is directly attached to the refrigerator.
  • the amplitude of the ultrasonic vibration is set to be a node of the amplitude at the flange portion 312. That is, when the piezoelectric element 311 is driven, each part shown in FIG. 14 vibrates.
  • connection portion 305 By connecting the flange portion 312 that is a node portion of the propagating vibration in this way to the connection portion 305, it is possible to prevent the vibration when the ultrasonic waves are generated from being transmitted to the refrigerator main body. Therefore, noise caused by vibration of refrigerator parts and shelves in the cabinet is reduced. It is. That is, noise and vibration of the refrigerator provided with the mist spraying device 302 of the type that generates mist by vibration energy are suppressed.
  • the horn 310 is made of a material having high thermal conductivity.
  • it is made of a metal such as aluminum, titanium or stainless steel.
  • aluminum is preferable to use as a main component.
  • a material mainly composed of stainless steel In order to extend the life, it is preferable to use a material mainly composed of stainless steel.
  • the dimensions of the horn 310 are set so that the amplitude of the ultrasonic vibration becomes the amplitude node at the flange portion 312 and the abdominal portion of the amplitude at the spray tip portion 310A which is the tip of the horn 310. It is.
  • the dimension of the horn 310 is set so that the dimension between the flange portion 312 and the spray tip portion 310A is 1Z 4 wavelength of ultrasonic vibration. In this way, with the vibration node fixed to the refrigerator main body, the position of the 1Z4 wavelength of the frequency at which the force is desired is the abdomen of the amplitude.
  • vibration energy loss can be significantly reduced and the power required for vibration can be reduced compared to the case where there are a plurality of abdominal portions between the flange portion 312 and the spray tip portion 310A.
  • the horn 310 By designing the horn 310 in this way, low input and high output can be obtained, and the horn 310 can be downsized.
  • the length of the horn 310 is determined by the particle diameter of the generated mist, the oscillation frequency of the piezoelectric element 311, and the material of the horn 310. For example, when the mist particle diameter is about 10 m, if the material of the horn 310 is aluminum and the oscillation frequency of the piezoelectric element 311 is about 270 kHz, the length of the horn 310 is about 6 mm. When the mist particle diameter is about 15 m, the length of the horn 310 is about 11 mm if the material of the horn 310 is aluminum and the oscillation frequency of the piezoelectric element 311 is about 146 kHz. A summary of these theoretical calculations is shown in Table 1. Describe.
  • the refrigerator is equipped with a cooling device for cooling the inside.
  • the cooling device includes the compressor 104, the condenser 105, the decompression device (not shown) such as an expansion valve and a cylindrical tube, the evaporator 102, and the like.
  • isobutane which is a flammable refrigerant, has a low global warming potential from the viewpoint of global environmental conservation.
  • the refrigerator shown in Fig. 11 the vegetable compartment 114 is adjusted to 4 ° C force 6 ° C by ON 'OFF operation such as cold air distribution and heating part, and generally the inside temperature detection part is installed. There are many things that do not have.
  • the vegetable compartment 114 is humid due to the transpiration of food-powered moisture and the invasion of water vapor by opening and closing the door.
  • the partition plate 111A is configured to be thinner than other portions.
  • the control unit 314 grasps the temperature state of the surface of the water collection plate 321 by the detection unit 327 installed on the water collection plate 321. Then, the control unit 314 performs ONZOFF control or duty control of the air blowing unit 317 and the heating unit 328. As a result, the surface temperature of the water collecting plate 321 is adjusted to be equal to or lower than the dew point temperature, and moisture contained in the high-humidity air sent from the interior by the blower 317 is condensed on the water collecting plate 321.
  • the vegetable room temperature detection unit (hereinafter referred to as detection unit) 325 is provided in the vegetable room 114.
  • a vegetable room humidity detection unit (hereinafter referred to as detection unit) 326 may be provided.
  • the dew point temperature can be accurately determined according to changes in the internal environment by a predetermined calculation. Even when ice or frost is generated on the surface of the water collecting plate 321, the control unit 314 can drive the heating unit 328 to raise the surface temperature of the water collecting plate 321 to the melting temperature, and thus generate water appropriately. be able to.
  • the surface temperature of the water collecting plate 321 rises due to the influence of the air in the vegetable compartment 114, and decreases when the blower 317 is stopped. If the wall thickness of the partition plate 111 A on the back of the supply unit 304 exceeds 10 mm, the surface temperature of the water collection plate 321 will exceed the dew point temperature even when the air supply unit 317 is in operation and the heating unit 328 is OFF, and the amount of condensation Cannot be adjusted. On the other hand, when the wall thickness is less than 5 mm, the surface temperature of the water collecting plate 321 is too low, so that the heating unit 328 is always ON and the energy efficiency is poor.
  • the thickness of the partition plate 111A on the back surface of the water collecting plate 321 is preferably 5 mm or more and 10 mm or less. As a result, the surface temperature of the water collecting plate 321 can be controlled, and the energy consumption of the heating unit 328 is minimized.
  • Water droplets condensing on the surface of the water collecting plate 321 gradually grow, flow downward without using the power of a pump or the like due to their own weight, and collect in the water storage tank 313 in the vicinity of the spray unit 301.
  • the water storage tank 313 is provided in the heat insulation box 110 and is a holding unit that holds a liquid.
  • the collected condensed water is supplied to the tip of the horn 310 by the water supply unit 303.
  • the water supplied to the tip of the horn 310 is sprayed into the vegetable compartment 114 as a mist having a small particle diameter by the vibration of the ultrasonic transducer 311.
  • the horn 310 is a force that generates heat by vibration in the vicinity of the spray tip 310A. Since the horn 310 is a highly thermally conductive material, this heat is diffused throughout the horn 310.
  • At least the spray tip 310A is provided in the vegetable compartment 114. For this reason, mist particles are sprayed directly on the vegetable compartment 114, where vegetables such as vegetables are stored. The That is, the distance between the spray tip 310A and the crop is short. This configuration prevents vaporization of mist particles and increases the flow velocity in a floating state, for example, compared to a case where mist is sprayed outside the vegetable compartment 114 and then fed into the vegetable compartment 114. This increases the rate of mist adhesion to the crop surface.
  • the spray unit 301 uses a piezoelectric element 311 utilizing an electrostrictive phenomenon caused by electric energy.
  • the spray unit 301 can make water droplets fine using vibration energy of high frequency. Therefore, it is possible to obtain a fine mist with a low voltage without requiring a high voltage when producing the fine mist. Therefore, safety associated with mist generation is increased and energy consumption is reduced.
  • the water particles are not decomposed by electrolysis or the like, it is possible to make a mistake without changing the water components. Therefore, even if functional water is supplied to the spraying unit 301 from a water storage tank or the like instead of the supply unit 304, the type of atomizer that generates mist by vibration energy does not decompose water particles such as electrolysis.
  • mistoy without changing the water composition.
  • the device when the device is configured to mistoy the water component as it is by applying vibrational energy, some component is added compared to pure water, such as alkaline ionized water or negative ionized water. Even if functional water is used, it becomes possible to misto the components as they are, and any water according to the user's needs can be supplied as mist.
  • the spray unit 301 is not limited to using the piezoelectric vibrator 311.
  • a magnetostrictive vibrator using a magnetostriction phenomenon caused by magnetic energy may be used as the vibrator. Even in this case, the same effect as described above can be obtained.
  • the spray unit 301 generates mist by ultrasonic vibration.
  • the frequency of ultrasonic waves is generally in a frequency band in which noise caused by vibration cannot be heard by human ears as a steady sound. For example, by using a frequency of 20,000 hertz or more, even when applied to a refrigerator for home use, noise caused by vibration cannot be heard by the human ear as a steady sound. Therefore, a refrigerator having low noise, high quality V, and mist spraying device 302 can be obtained.
  • control unit 314 is spray The unit 301, the heating unit 328, the compressor 104, the air blowing unit 317, and the ozone generator 323 are controlled.
  • the heating unit 328 adjusts the amount of water supplied to the spray unit 301.
  • the detection unit 325 detects the internal temperature as 5 ° C
  • the detection unit 326 detects the internal humidity as 90%
  • the detection unit 327 detects the surface temperature of the water collecting plate 321 as 4 ° C.
  • the control unit 314 determines ONZOFF of the spray unit 301 and the operation of the heating unit 328. That is, the surface temperature of the water collecting plate 321 needs to be cooled below the dew point temperature. Therefore, for example, the control unit 314 turns off the heating unit 328 or reduces the input. In order to reduce the temperature of the cold air, the force for increasing the rotational speed of the compressor 104 or the rotational speed of the air blowing unit 317 is decreased. The control unit 314 operates the spray unit 301 only when the detection unit 330 detects that the door is closed. This prevents mist leakage to the outside when the door is opened.
  • step 21 the detection unit 327 detects the surface temperature t ° C of the water collecting plate 327.
  • the control unit 314 determines that the pesticide removal is to be activated when t ° C is within the predetermined t ° C and t ° C range, and the control is
  • step 22 If t ° C is not in the t ° C and t ° C range, control returns to step 21
  • step 22 the control unit 314 operates the spray unit 301 to spray mist into the vegetable compartment 114.
  • step 23 the accumulated operation time T of the spraying part 301 is determined in advance.
  • control unit 314 If it is equal to or greater than T, the control unit 314 operates the ozone generator 323 in step 24, and the control proceeds to step 25. If T is less than T, control unit 314 continues to eject at step 23.
  • step 25 the accumulated operation time T of the spraying part 301 exceeds the predetermined T.
  • control unit 314 stops the spray unit 301 in step 26 and ends the mist spraying. At the same time, the controller 314 also turns off the ozone generator 323 and the control proceeds to step 27. T force S
  • control unit 314 continues to determine the spraying time in step 25.
  • step 27 the stop time T of the spray section 301 must be greater than or equal to the predetermined T.
  • control unit 314 returns T and T to the initial values in step 28 and returns to step 21 again.
  • control unit 314 continues the stop time of the spray unit 301 in step 27.
  • FIG. 17 is a longitudinal sectional view in the vicinity of the spraying part 301.
  • a water storage tank 425B and a spray unit 301 are provided from the refrigerator door 400A side toward the interior partition inner surface to constitute a mist spraying device 302A.
  • the mist spraying device 302A is fixed to a partition plate 111B constituting the top of the vegetable compartment 114.
  • the bottom surface of the water storage tank 425B is inclined, and a water supply adjustment unit 444 is provided at the bottom of the back surface.
  • the water storage tank 425B is installed on the door 400A side of the vegetable compartment 114, that is, on the front side, so that people can easily attach and detach it, and stores tap water and condensed water.
  • various functional waters may be injected into the water storage tank 425B.
  • Functional water is, for example, acidic water, alkaline water, or nutrient water containing vitamins.
  • the bottom surface of the water storage tank 425B is inclined toward the back of the refrigerator, and the injected water is devised to flow to the back.
  • a water supply adjustment section 444 is provided on the bottom surface on the back side.
  • the water supply adjustment unit 444 also has an open / close valve force, for example.
  • the water supply adjustment unit 444 supplies water to the spray unit 301 only when it is open.
  • the water storage tank 425B is provided on the door 400A side, and the spraying portion 301 is provided on the back side of the water storage tank 425B.
  • Water tank 4 Since the bottom surface of 25B is inclined toward the spraying part 301, the water in the water tank 425B is used efficiently.
  • an appropriate amount of water is supplied to the spray unit 301 by the water supply adjustment unit 444.
  • the water storage tank 425B may be a detachable force fixed to the partition plate 111B. This facilitates the exchange, addition and cleaning of water and improves usability.
  • FIG. 18 is a diagram showing the relationship between the pesticide removal effect of the mist spraying device 302 and the mist particle diameter.
  • Embodiment 3 ten cherry tomatoes with about 3 ppm of malathion attached are used.
  • the mist generated by the mist spraying device 302 is sprayed continuously for 12 hours. After treatment, the residual malathion concentration of cherry tomatoes is measured by GC, and the removal rate is calculated. The spray amount at this time is 0.03 gZh'L.
  • the particle diameter of the mist is determined by the frequency of the piezoelectric element 311 and the dimension of the horn 310.
  • the particle size must be controlled to 20 m or less.
  • mist with a particle size of 0.5 ⁇ m is more diffusive than mist with a particle size of 20 ⁇ m, the frequency of contact between the mist and agricultural chemicals on the vegetable surface increases, and the removal rate of agricultural chemicals is also high. It is thought to be higher.
  • the mist particle size with a performance of 50% or more in the mist spraying apparatus that generates mist by the ultrasonic method is 20 m or less, and the pesticide removal rate is 70% or less.
  • the mist particle size with the above performance is 0.5 ⁇ m or less.
  • the mist particle size is made smaller than 0.5 m, the pesticide removal rate is considered to be further improved.
  • the spraying part 301 water droplets are made fine by using high-frequency vibration energy. Therefore, in the ultrasonic atomizing spray unit 301, it is necessary to increase the vibration frequency in order to reduce the mist particle size to less than 0. The higher the vibration frequency, the greater the number of vibrations, and the longer the service life of the spraying part 301 that employs the current ultrasonic atomization method tends to be. Refrigerators have a long service life among household electrical appliances, and the average service life is about 10 years, so long-term durability is required. Therefore, when the mist is generated using the ultrasonic atomization method in the current technology, the lower limit value of the mist particle diameter is preferably set to 0.5 m.
  • the mist particle diameter using the spray unit 301 of the ultrasonic atomization method is in the range of 0.5 / zm to 20 ⁇ m.
  • the ultrasonic atomization method can ensure long-term reliability. If there is, the lower limit value of the mist particle diameter can be expanded to about 0.05 m of 1Z10.
  • FIG. 19 is a diagram showing the relationship between the pesticide removal effect of the mist spraying device 302 and the amount of mist spraying.
  • a mist with a particle size of 10 m is sprayed into a vegetable chamber 114 of 70 liters.
  • the spraying time is 12 hours, similar to the experiment in Fig. 18.
  • the spray amount is controlled by changing the voltage applied to the spray section 301.
  • the spray amount can be adjusted by changing the opening area of the spray tip 310A.
  • the removal effect of malathion increases as the amount of mist spray increases.
  • the spraying amount In order to achieve a malathion removal rate of 50% or more, the spraying amount must be controlled to 0.001 g / h-L or more. On the other hand, if the spray amount exceeds 0.14 gZh'L, although there is a pesticide-removing effect, excess moisture will adhere to the vegetable surface, causing water rot and reducing the quality of the vegetable.
  • the amount of mist sprayed using the spray section 301 of the ultrasonic atomization method is in the range of not less than 0.014 g / h-L and not more than 0.14 g / h′L.
  • the spraying amount may be increased if water rot can be prevented by shaking the vegetables and removing excess water.
  • the spray amount is preferably 0.5 gZh'L or less.
  • the refrigerator as the storage having the cooling device according to the present embodiment has the vegetable compartment 114 as a storage compartment formed by insulating the heat insulation box 110.
  • the refrigerator also includes a mist spraying device 302 including an ultrasonic atomizing spray unit 301 that sprays liquid mist.
  • the air path 229 is used to convey the low temperature cold air to each storage room having a relatively low temperature.
  • the water collecting plate 321 for supplying water to the spray part 301 is cooled by the heat conduction of the air passage 229 side force. By adjusting the temperature of the water collecting plate 321 below the dew point, moisture in the air is reliably generated, and water is supplied to the spray tip 310A of the horn 310 by the water supply unit 303 or the like.
  • the spray unit 301 is an ultrasonic atomization system, if the supply of water is sufficient, the spray amount is sufficiently secured. Therefore, the amount of spray can be adjusted by ONZOFF operation. Furthermore, the operation time in actual use is shortened, and the lifetime reliability of components is improved. In addition, pesticides and wax adhering to the surface of agricultural products can be lifted and removed with a very small amount of water, saving water. [0136] Further, since the spray unit 301 is an ultrasonic atomization system, ozone is not generated when mist is generated, and only OH radicals are generated. This simplifies the component configuration and control details that do not require any special measures against ozone. If ozone is used, an ozone generator 323 should be provided separately as in this embodiment.
  • the spray unit 301 can spray various functional water.
  • Functional water is, for example, acidic water, alkaline water, or nutrient water containing vitamins.
  • the mist efficiently enters the fine recesses on the surface of the crop. Therefore, harmful substances such as pesticides are removed to the smallest detail.
  • ozone gas generated by discharge is dissolved in the sprayed mist, but the same effect can be obtained even if the stored water is ozone or functional water rich in reactivity.
  • the spray unit 301 of the ultrasonic atomization method since the spray unit 301 of the ultrasonic atomization method is used, a high voltage is not required when atomizing the mist. Therefore, when a flammable refrigerant such as isobutane or propane is used as the refrigerant for the cooling device, safety is maintained even if the refrigerant leaks from the cooling device. There is no need to devise special measures. There is no need for special measures such as explosion protection. Therefore, applying the spray unit 301 of a type that generates mist by vibration energy to a refrigerator using a flammable refrigerant does not impair the safety of a household refrigerator.
  • a flammable refrigerant such as isobutane or propane
  • the spray unit 301 includes a horn 310 formed in a substantially conical shape and a piezoelectric element 311.
  • the piezoelectric element 311 is bonded to and integrated with one end surface of the horn 310.
  • the mist spraying device 302 including such an ultrasonic atomizing spray unit 301 is small in size and operates with a low input. Therefore, it can be placed in the vegetable compartment 114.
  • the spray unit 301 since the heat generation amount of the mist spraying device 302 itself is suppressed, the temperature rise in the vegetable compartment 114 is suppressed. In addition, since abnormal heat generation in the event of water shortage is also suppressed, the spray unit 301 has a long life and improves reliability. Furthermore, since the inside of a refrigerator is a low temperature atmosphere, the temperature rise of the spray part 301 is suppressed. As a result, the spraying part 301 has a long life.
  • the spray unit 301 By providing the water supply unit 303, water is efficiently and stably supplied to the tip of the horn 310. Therefore, the spray unit 301 always sprays stably, and mist is sprayed in the vegetable compartment 114. In addition, since water is stably supplied to the tip of the horn 310, water shortage at the tip of the horn 310 is prevented, and the spray unit 301 has a long life and reliability is improved.
  • the water supply unit 303 is provided in the vicinity of the supply unit 304. Therefore, water is supplied to the tip of the horn 310 by the water supply unit 303 as well as the supply unit 304 force. As a result, the vegetable compartment 114 is efficiently sprayed.
  • the supply unit 304 and the water supply unit 303 are located in the vicinity, the water path from the supply unit 304 to the tip of the horn 310 becomes compact and simple, and the degree of freedom in design is improved.
  • the supply unit 304 has a water collecting plate 321 that condenses moisture in the air in the vegetable compartment 114 in order to collect water. Condensed water generated by condensation is collected at the supply unit 30 and collected. The condensed water thus supplied is constantly and stably supplied to the tip of the horn 310 by the water supply unit 303. Therefore, mist is efficiently sprayed in the storage space.
  • the horn 310 is made of a material having high thermal conductivity, heat generated at the tip of the horn 310 is diffused throughout the horn 310. Moreover, since the inside of a refrigerator is a low temperature atmosphere, the temperature rise of the spray part 301 is suppressed. As a result, the spray unit 301 has a long life and reliability is improved.
  • the tip of the horn 310 is disposed in the vicinity of the vibration abdomen, and the flange portion 312 provided on the surface to which the piezoelectric element 311 is bonded is disposed in the vicinity of the vibration node. And the flange part 312 and the refrigerator main body are connected directly or indirectly. Therefore, the liquid replenished to the tip of the horn at the abdomen having a large vibration amplitude, that is, the tip of the horn 310 can be efficiently atomized. On the other hand, vibration transmission to the refrigerator connected directly or indirectly is reduced because the amplitude of the vibration node, that is, the flange 312 is small.
  • the piezoelectric element 311 vibrates in a mode in which the length between the spray tip 310A of the horn 310 and the flange 312 is 1Z4 wavelength.
  • the horn 310 can be downsized. It also improves efficiency because energy dispersion and attenuation are reduced.
  • the installation restrictions of the small horn 310 provide a small degree of design freedom and increase the storage space. Specifically, the length of the horn 310 can be set to 1 mm to 20 mm. Thus, if the horn 310 is made small, the design freedom of the refrigerator can be obtained and the storage space becomes large.
  • the horn 310 in the spray unit 301 has been described as having an approximately conical shape.
  • the present invention is not limited to this.
  • a similar effect can be obtained if the shape amplifies the amplitude of vibration at the tip.
  • the piezo-electric element 311 side force can be tapered toward the front end, and the horn end can be formed into a substantially rectangular shape. In this configuration, the area over which the mist is sprayed is larger than the circular shape, so the spray range is expanded and diffusibility is improved.
  • the mist spraying devices 120 and 302 in the third and fourth embodiments described above are used in combination.
  • the effect of removing agricultural chemicals by such a combined mist spraying device the effect of keeping agricultural products stored in the vegetable compartment 114, and the antifouling effect of the wall in the vegetable compartment 114, the viewpoint power of the mist particle size and spray amount is also explain.
  • FIG. 20 is a diagram showing the correlation between the mist particle size and the spray amount and the respective effects in the present embodiment.
  • Figure 20 shows the range in which each effect appears when the 70 L vegetable room is maintained at an ambient temperature of 5 ° C, and the mist particle size and spray amount are varied by the electrostatic atomization method and the ultrasonic method. ing.
  • the mist spraying devices 120 and 302 By adjusting the capabilities of the mist spraying devices 120 and 302 according to the third and fourth embodiments, a range where the appropriate values of the particle diameter and the spray amount of both of them overlap each other is covered. From FIG. 20, it can be seen that there is an appropriate range for the mist particle size and the spray amount according to Embodiments 3 and 4 and the respective effects, which are shifted from each other.
  • the pores are maximally open and the particle size is equal to or smaller than the pore size in the state that the sprayed mist cannot physically enter the vegetable interior. .
  • the pores are on the surface of the vegetables and regulate the water content.
  • the moisture content recovery rate is high if the mist particle size is equal to or smaller than the cell gap width. That is, the mist actively invades the intercellular gap force, and the moisture content restoration effect of the vegetable is increased.
  • the mist diameter becomes too small, the contact frequency between the mist and the pores decreases, and the resuscitation rate of vegetables decreases.
  • the amount of mist sprayed needs to be equal to or greater than the amount by which the relative humidity in the vegetable compartment 114 can be kept in equilibrium with the humidity inside the vegetable.
  • the spray amount is too large, the quality of the vegetables will deteriorate due to water rot.
  • the amount of spray needs to be less than the amount that does not cause such a situation.
  • the mist particle size is not more than the uneven width of vegetables, and the pesticidal effect is high when the particles are diffusible fine particles. If the particle size is too small, the contact frequency with the pesticide will be low and the removal rate will be low. On the other hand, like vegetable resuscitation, the frequency of contact between electrostatically loaded mist and vegetables is high, so the higher the proportion of electrostatically loaded mist, the smaller the spraying effect. In this case, it is not necessary to supply the mist to the inside of the vegetable as in the resuscitation of the vegetable. The supply of the mist is limited to the vegetable surface. Therefore, the amount of spray required is less than vegetable resuscitation.
  • the antifouling effect in the refrigerator will be described. If mist water particles evenly adhere to the wall surface of the refrigerator, it is possible to prevent dirt from adhering directly to the wall surface of the refrigerator.
  • the antifouling effect in the refrigerator cabinet means such an effect. In this way, when the dirt substance adheres to the wall surface in the warehouse via water particles, for example, it is possible to easily remove the dirt simply by wiping the wall surface in the warehouse, and cleaning the refrigerator is very easy. It becomes.
  • fine particles having a particle diameter equal to or smaller than the uneven width of the internal greaves and having diffusibility have a high antifouling effect. Also visible as water droplets when mist adheres to the inner wall Condensation may occur at the particle size, and the food quality may deteriorate. For this reason, the particle diameter of the mist to be sprayed needs to be a particle diameter at which the mist adhering to the wall surface forms water droplets at an invisible level. Moreover, the spraying amount is larger than the spraying amount for vegetable resuscitation and pesticide removal. This is because in order to exert the antifouling effect, it is necessary to uniformly adhere water particles to the wall surface and to spray a large amount of mist.
  • the mist When the mist is generated by the electrostatic atomization method, the number of radicals having a high ability to decompose acid and soot increases as the particle diameter decreases, as in the removal effect of agricultural chemicals. Therefore, it is considered that the ability of mist to decompose acid and soot increases, the frequency of contact with dirt increases, and the effect of decomposing adhering dirt increases. However, if the particle size is too small, the mist wall-arrival rate decreases and the antifouling effect is reduced.
  • FIG. 21A is a diagram showing the relationship between the agrochemical removal effect and the water particle diameter of mist in the present embodiment.
  • Embodiment 3 ten cherry tomatoes with about 3 ppm of malathion attached were used. After the mist generated by the mist sprayer is continuously sprayed for 24 hours, the residual malathion concentration of cherry tomatoes is measured by GC and the removal rate is calculated. The spray amount at this time is 0.03 gZh'L.
  • the mist particle size in order to achieve a pesticide removal rate of 50% or more, the mist particle size must be 0.003 ⁇ m or more and 20 ⁇ m or less. Fine mist particles that have a mist particle size that is less than the width of the unevenness of crops and that are diffusible have a high pesticide removal effect. Therefore, the mist particle size is preferably 20 m or less. If the particle size becomes too small and less than 0.003 ⁇ m, the contact frequency with the pesticide will decrease and the removal rate will be lowered.
  • FIG. 21B is a diagram showing the relationship between the pesticide removal effect and the amount of mist spray in the present embodiment.
  • FIG. 21B is a diagram showing the pesticide removal effect according to Embodiment 5 of the present invention with respect to the amount of mist sprayed.
  • a mist with a particle size of 0.5 m was placed in a vegetable chamber 114 of 70 liters. Spray.
  • the spraying time is 12 hours as in the experiment of FIG. 21A.
  • the removal effect of the pesticide malathion increases as the amount of mist spray increases.
  • the spray amount must be controlled to 0.0007 g / h'L or more. This lower limit is the same as the value obtained when the mist is sprayed by the electrostatic atomization method. That is, the lower limit is determined by the electrostatic atomization method.
  • the spray amount exceeds 0.14 gZh'L, although there is an effect of removing agricultural chemicals, excessive moisture adheres to the vegetable surface, causing water rot and reducing the quality of the vegetable.
  • the spraying amount may be increased if water rot can be prevented by shaking the vegetables to remove excess moisture.
  • the amount of spray is preferably 0.5 gZh'L or less.
  • the upper limit is determined by the ultrasonic vibration method.
  • FIG. 22 is a cross-sectional view of the refrigerator in the sixth embodiment of the present invention.
  • FIG. 23 is a longitudinal sectional view of the vicinity of the mist spraying device of the refrigerator shown in FIG. FIG. 23 also serves as a block diagram of the control system of the mist spraying device, and does not show the positions of the voltage application unit 409 and the control unit 414.
  • the refrigerator shown in FIG. 22 is different from the refrigerator shown in FIG. 5 in the configuration of the spray section 431 provided on the partition plate 111B on the top surface of the vegetable compartment 114.
  • the other basic configuration is the same as that of the refrigerator shown in FIG.
  • the mist spraying device 404 has an electrostatic atomizing spray unit 431.
  • the outer part of the spray part 431 consists of a cylindrical holder 405!
  • an application electrode 406 is installed in the holder 405.
  • the periphery of the application electrode 406 is covered with a water retention material 407.
  • the water retaining material 407 holds condensed water, and the application electrode 406 is in a water-containing state up to the spherical tip. That is, the water retention material 407 is a holding unit that holds water supplied to the application electrode 406 constituting the mist spraying device 404.
  • a plate-like counter electrode 408 having an opening at the center is disposed in the opening inside the holder 405.
  • the counter electrode 408 is attached so as to maintain a certain distance from the tip of the application electrode 406.
  • the negative electrode side of the voltage application unit 409 for generating a high voltage is electrically connected to the application electrode 406, and the positive electrode side is electrically connected to the counter electrode 408. Connected.
  • the spray unit 431 is provided with a temperature detection unit 412 for detecting the tip temperature of the application electrode 406.
  • the control unit 414 receives a signal from the temperature detection unit 412, performs a predetermined calculation, and operates the components.
  • a heating unit 413 for controlling the tip temperature of the application electrode 406 is provided on the back surface of the application electrode 406, a heating unit 413 for controlling the tip temperature of the application electrode 406 is provided.
  • the partition plate 111B is mainly made of a heat insulating material such as polystyrene foam, and its thickness is about 3 Omm. On the back surface of the spray part 431, the thickness is 5 mm to 10 mm.
  • the vegetable compartment 114 is adjusted to have a 4 ° C force of 6 ° C by the distribution of cold air from the evaporator 102, and generally in the cabinet. Does not have a temperature detector.
  • the inside of the vegetable compartment 114 is highly humid due to transpiration from food and intrusion of water vapor by opening and closing the door.
  • a switching room 113 and an ice making room are provided on the vegetable room 114.
  • the temperature in these storages is lower than the temperature in the vegetable compartment 114.
  • the thickness of the partition plate 111B on which the spray unit 431 is installed needs a cooling capacity for cooling the application electrode 406. Therefore, the wall thickness of the portion where the spray part 431 is provided is configured to be thinner than other portions.
  • the tip temperature of the application electrode 406 is set to be equal to or lower than the dew point temperature, water vapor in the vicinity of the application electrode 406 is condensed on the application electrode 406, and water droplets are reliably generated.
  • a control unit 414 is installed in the vicinity of the application electrode 406 and the temperature detection unit 412 grasps the state of the tip temperature. Then, the control unit 414 performs ONZOFF control or duty control on the heating unit 444 to adjust the tip temperature of the application electrode 406 below the dew point temperature. In this way, moisture contained in the humid air is condensed on the application electrode 406.
  • the control unit 414 uses a predetermined calculation to strictly determine the dew point temperature according to changes in the internal environment. Can be determined.
  • the control unit 414 causes the heating unit 444 to raise the temperature of the tip of the application electrode 406 to the melting temperature.
  • water is generated appropriately by melting frost and ice.
  • the application electrode 406 is covered with a water retention material 407. Therefore, the surface of the application electrode 406 is in a certain amount of water content.
  • the application electrode 406 is set to the negative voltage side and the counter electrode 408 is set to the positive voltage side, and the voltage application unit 409 applies a high voltage (eg, 4.6 kV) between the electrodes. At this time, for example, corona discharge occurs between electrodes set at a distance of 3 mm.
  • water on the applied electrode 406 is atomized from the tip and becomes a fine mist.
  • This mist is charged and has a nano-level particle size of less than 1 ⁇ m that is not visible.
  • Ozone and OH radicals are generated along with the generation of mist.
  • the generated ozone is immediately mixed with the mist to form a low concentration ozone mist.
  • mist is sprayed into the vegetable compartment 114.
  • This mist is negatively charged.
  • the crops stored in the vegetable compartment 114 usually have a positive charge. Therefore, mist is likely to gather on the crop surface.
  • the mist also contains ozone and OH radicals. For this reason, mists decompose and decompose harmful substances such as pesticides and wax that adhere to the crop surface.
  • the refrigerator that is a storage unit having a cooling device in the present embodiment has the vegetable compartment 114 that is a storage compartment formed by thermally insulating the heat insulation box 110.
  • the refrigerator also includes a mist spraying device 404 including an electrostatic atomizing spray unit 431 that sprays liquid mist.
  • the spray unit 431 has an application electrode 406 for applying a voltage to water, a counter electrode 408 disposed at a position facing the mark calo electrode 406, and a voltage application for applying a voltage between the mark calo electrode 406 and the counter electrode 408. Part 409.
  • the application electrode 406 is cooled by heat conduction using low-temperature cold air from another storage room having a relatively low temperature as a cooling source. Further, the tip temperature of the application electrode 406 is adjusted to a dew point or lower by the heating unit 413. As a result, moisture in the air is surely condensed on the tip of the application electrode 406. That is, the application electrode 406 functions as a water collecting unit that extracts water from the air in the vegetable compartment 114.
  • the amount of condensation is adjusted by finely adjusting the tip temperature of the application electrode 406 by the heating unit 413 provided on the back surface of the application electrode 406. Further, even if ice or frost is generated at the tip of the application electrode 406, the heating unit 413 melts them to form water droplets, and water is reliably supplied into the spray unit 431.
  • the collected water is supplied to the tip of the application electrode 406 by the water retention unit 407. The water is sprayed as fine mist on the vegetable compartment 114 by the application electrode 406 and reliably adheres to the crop surface. At that time, harmful substances on the crop surface are removed by ozone and OH radicals generated simultaneously with the occurrence of mist. In addition, effects such as deodorization and antifouling in the vegetable compartment 114 are obtained.
  • the sprayed mist is sprayed directly on the crops in the vegetable compartment 114. Therefore, the mist can be attached to the crop surface using the potential difference between the mist and the crop. Therefore, harmful substances such as agricultural chemicals are efficiently removed with a small amount of water.
  • the application electrode 406 which is a water collection unit, is installed so as to be suspended from the upper part of the spray unit 431. Therefore, the dew condensation water captured by the application electrode 406 naturally falls due to gravity and travels toward the tip. This makes it possible to supply water to the mist spraying device 404 at low cost without using a water supply unit such as a pump or a firefly.
  • a water retaining material 407 is disposed around the application electrode 406. As a result, the condensed water is held around the application electrode 406 and supplied to the application electrode 406 in a timely manner. Furthermore, since the water retaining material 407 is not vibrated, deterioration due to material shrinkage is prevented.
  • Condensation water does not contain mineral components or impurities like tap water. Therefore, water retention material
  • the ozone concentration in the vegetable compartment 114 is adjusted by the ONZOFF operation of the mist spraying device 404, which generates ozone when mist is generated.
  • the ozone concentration in this manner By appropriately adjusting the ozone concentration in this manner, the deterioration of vegetables such as yellow potato caused by excessive ozone is prevented, and the sterilization and antibacterial action of the vegetable surface is enhanced.
  • FIG. 24 is a longitudinal sectional view showing another configuration in the vicinity of the spraying part in the present embodiment.
  • a partition plate 111B constituting the top of the vegetable compartment 114 is provided with a water storage tank 425 and a spraying part 431 in this order from the refrigerator door 400A side toward the interior partition interior. Reservoir tank 42 In 5, supply water 426 is stored. In the vicinity of the spraying part 431, there is a cover member 501 with a perforated hole such as V that food and people cannot touch. In this way, the mist spraying device 404A is configured.
  • the water storage tank 425 is installed on the door 400A side of the vegetable compartment 114, that is, on the front side so that people can easily attach and detach it.
  • supply water 426 to be supplied to the spray section 431 is stored.
  • a water supply unit 441 and a water supply path 442 are provided to supply the supply water 426 to the spray unit 431.
  • the water supply unit 441 is, for example, a gear pump, a piezoelectric pump, a capillary, or the like, and supplies water to the tip of the application electrode 406 of the spray unit 431 and the water retaining material 407 around it.
  • the amount of water supply is substantially equal to the amount sprayed into the vegetable compartment 114.
  • a control unit 414 and a voltage application unit 409 are provided as in FIG. The control unit 414 further controls the operation of the water supply unit 441.
  • the control unit 414 first operates the water supply unit 441 to supply water to the tip of the application electrode 406 using the water supply path 442.
  • the necessity of spraying into the vegetable compartment 114 is performed by the control unit 414 by a vegetable compartment humidity detection unit (not shown) that detects the humidity in the vegetable compartment 114.
  • a vegetable compartment humidity detection unit not shown
  • the voltage marking unit 409 applies a high voltage between the marking electrode 406 and the counter electrode 408. Fine mist generated thereby is sprayed into the vegetable compartment 114.
  • the spray section 431 is embedded in a recess 420 provided in the partition plate 111B on the top surface section.
  • the spray unit 431 is installed in the top of the vegetable room 114 and the cover member 501 is installed around it.
  • the cover member 501 is arranged so as to be higher than the bottom surface 425A of the bottom surface portion 501A force water storage tank 425. The cover member 501 configured in this manner does not affect the movable operation of the vegetable container 228 that can be moved back and forth by the pull-out door 400A.
  • vegetables that are agricultural products are stored. These fruits and vegetables are usually transcribed or preserved at the time of purchase return, especially when green rape leaves and fruits are preserved. It is often stored in a slightly deflated state due to transpiration. These fruits and vegetables are usually charged with a positive charge, and the fine mist with a negative charge sprayed easily collects on the vegetable surface. Therefore, the sprayed mist adheres to the surface of the fruits and vegetables at the same time that the inside of the vegetable compartment 114 is humidified. Mist adheres electrically to the surface of the crops thus charged and the inner wall of the warehouse. In addition, the mist penetrates into the fine recesses on the surface of the crops, and toxic substances such as residual agricultural chemicals and wax are lifted by the internal pressure energy.
  • ozone and OH radicals contained in the mist react chemically with residual agricultural chemicals and wax. As a result, residual pesticides and waxes become more hydrophilic and are taken up in mist and decomposed and removed.
  • the water storage tank 425 is provided on the door 400A side on the partition plate 111B located on the top surface of the vegetable compartment 114 of the refrigerator. That is, a water storage tank 425 is provided on the front side as viewed from the user.
  • a water storage tank 425 is provided on the front side as viewed from the user.
  • the spray section 431 is provided on the back side of the water storage tank 425, the user is prevented from touching the spray section 431, particularly the spray tip section 406A, and safety is improved.
  • the lower end 431 A of the spraying part 431 is disposed on the back side of the water storage tank 425 and above the bottom surface 425 A, which is the lower end surface of the water storage tank 425. Therefore, the aesthetics in the vegetable compartment 1 14 where the spraying part 431 is difficult to see from the user are not impaired. Further, since the user touches the spray portion 431, the safety of the user is further increased. In addition, since food or human contact with the spraying part 431 is prevented, a decrease in reliability due to external force is prevented.
  • the spraying part 431 is embedded in a recess 420 provided in the partition plate 111B. This reduces the internal volume The spray section 431 is provided in the vegetable compartment 114 without affecting food storage.
  • cover member 501 that covers the spray part 431, the force of food and people coming into contact is prevented.
  • the bottom surface portion 501A is disposed above the bottom surface 425A of the water storage tank 425. This prevents a decrease in the internal volume and improves the beauty and safety of the vegetable compartment 114 provided with the spraying part 431.
  • the water storage tank 425 has been described as being removable, the present invention is not limited to this.
  • the water storage tank 425 is a fixed type, and for example, tap water or stored water generated using moisture in the refrigerator may be automatically supplied.
  • the spraying part 431 can be provided in the vegetable compartment 114 without impairing the appearance in the vegetable compartment 114.
  • the user touches the spray part 431 more, safety to the user is enhanced.
  • the foodstuff and the person's contact with the spray part 43 1 are prevented, the fall of the reliability by external force is prevented.
  • the force using the spray unit 431 of the electrostatic atomization method is not limited to this. You may use the spray part of another systems, such as an ultrasonic atomization system. Even in this case, the convenience and safety of the refrigerator can be improved by making the arrangement relationship between the water storage tank 425 and the spray section the same as described above.
  • the spray portion 431 is embedded in the recess 420 provided in the partition plate 111B, and the thickness of the partition plate 111B is thinner than the other portions. As a result, the tip of the application electrode 406 is cooled to facilitate dew condensation.
  • a water storage tank 425 is provided and marked. When supplying water to the additional electrode 406, it is not necessary to cause condensation on the applying electrode 406. In that case, the temperature detection unit 412 and the heating unit 420 may not be provided.
  • FIG. 25 is a front view of the vicinity of the vegetable compartment of the refrigerator in the seventh embodiment of the present invention.
  • FIG. 26 is a longitudinal sectional view taken along line AA in the vicinity of the vegetable compartment of the refrigerator shown in FIG.
  • a container 228A for storing vegetables and fruits is arranged in the vegetable compartment 114.
  • a rail member 512 for holding the container 228A is provided on the outer wall of the refrigerator.
  • the container 228A held by the rail member 512 moves back and forth as the door 400A opens and closes.
  • a specific container 228B partitioned from the container 228 in a substantially separate section is arranged in the vegetable compartment 114.
  • the lid 514 almost seals the specific container 228B only when the door 400A is closed.
  • the lid 514 is made of a light-transmitting material and has a hole in a part thereof.
  • the container 228A is omitted.
  • the lid 514 is arranged so that the door 400A side is inside the specific container 228B and the back side of the interior is deeper than the specific container 228B.
  • a detachable water storage tank 425C is provided on the door 400A side, that is, on the front side.
  • a spray portion 431 is attached to the back side of the partition plate 11B.
  • the basic configuration of the spray unit 431 of the electrostatic atomization method is the same as that of the sixth embodiment.
  • a hole 517 that is slightly larger than the outer dimensions of the spray part 431 is provided. With this configuration, the movement of the lid 514 relative to the spray unit 431 is restricted.
  • the lid 514 moves as the door 400A opens and closes. When the door 400A is closed, the lid 514 substantially seals the specific container 228B.
  • the door 400A is opened, it is detached from the specific container 228B and held on the main body side. Therefore, when the door 400A is opened, the upper surface of the specific container 228B is opened.
  • the container 228A is provided with a holding part 515 for holding the specific container 228B.
  • the holding part 515 holds the protrusion 516 provided on the specific container 228B.
  • the force that the specific container 228B is provided to the inner side of the interior.
  • the holding portion 515 serves as a rail when the specific container 228B is pulled out. Function.
  • Irradiation section 523 and diffusion plate 524 are provided on partition plate 111B.
  • the irradiation unit 523 irradiates the specific container 228B with light of a specific wavelength, and affects the crops in the specific container 228B.
  • the diffusion plate 524 uniformly irradiates the inside of the specific container 228B and covers the irradiation unit 523 that is a light source.
  • the irradiation unit 523 is installed on the projection surface above the specific container 228B, and irradiates light through the transparent lid 514 into the specific container 228B.
  • the operation and action of the vegetable room 114 of the refrigerator configured as described above will be described.
  • the food stored in the vegetable compartment 11 4 has been diverse in recent years. For example, beverages that do not require high humidity, such as plastic bottles, are also stored, and their uses vary widely.
  • vegetables leafy vegetables such as spinach prefer relatively low temperatures and high humidity, but shiitake mushrooms do not like high humidity. Also, potato and other grains prefer around 10 ° C.
  • the specific container 228B is provided in the container 228A. This will provide a space environment according to the preserved vegetables. Further, the specific container 228B and the lid 514 form a substantially closed space.
  • the specific container 228B has become highly humid due to the evaporation of 425C water from the water storage tank 425C, which makes it suitable for storing leafy vegetables such as spinach.
  • At least the spray tip 406A of the spray unit 431 is provided in the upper part of the internal space of the highly humidified specific container 228B.
  • the spray unit 431 and the water storage tank 425C constitute a mist spraying device that sprays mist by electrostatic atomization using water vapor in humid air.
  • the spray unit 431 uses the cooling of the back surface to condense. Therefore, a recess 420A is provided in the part of the partition plate 111B to which the spray part 431 is attached. With such a configuration, the spraying unit 431 generates nanoscopic fine mist that has an electric charge and cannot be visually observed, and sprays it into the specific container 228B.
  • the fine mist generated by the electrostatic atomization method generates a small amount of ozone and OH radicals at the same time as the charge. Therefore, in addition to the oxidizing power of ozone, it has the oxidizing power of OH radicals.
  • the mist penetrates into the fine recesses on the surface of vegetables and fruits, leaving residual pesticides and wax. The harmful substances are lifted by the internal pressure energy. Then, it is oxidatively decomposed and removed by the acid decomposition action of ozone.
  • the mist electrically enters even the fine recesses on the surface of the vegetable fruit, chemically reacts with the residual agricultural chemicals and wax, increases the hydrophilicity of the residual agricultural chemicals and wax, and is taken into the mist for decomposition and removal.
  • the spray tip 406A is provided in the specific container 228B. Therefore, mist particles are sprayed directly on the specific container 228B in which the crops are stored. Thus, the distance between the spray tip 406A and the crop is short. Therefore, for example, vaporization of mist particles is prevented as compared with the case where the mist is sprayed outside the specific container 228B and the force is also fed into the specific container 228B. Also, since the mist flow rate in the floating state increases, the mist adherence rate to the crop surface increases.
  • the spray tip 406A is provided in the specific container 228B, and the water storage tank 425C is provided in a section different from the section in which the spray section 431 is provided. That is, the water storage tank 425C is a supply unit that is provided in a section of the heat insulation box 110 that is different from the spray tip 406A and that holds water and supplies water vapor to the spray unit 431. In this configuration, the arrangement position of the water storage tank 425C is not affected by the arrangement position of the spray section 431. Therefore, the water storage tank 425C can be provided at an arbitrary position that facilitates replenishment of water into the water storage tank 425C and cleaning of the water storage tank 425C. In this way, user convenience is improved.
  • a specific container 228B that is a section for spraying mist and a container 228A that does not perform mist spraying are arranged. This provides a space environment according to the preserved vegetables. Since the user can use the functions of the vegetable compartment 114 according to the purpose, the convenience of the refrigerator and the preservation of the crop are greatly improved.
  • the irradiation unit 523 is provided outside the specific container 228B, which is sprayed with mist and becomes high humidity. As a result, the periphery of the irradiation unit 523 does not become high humidity, and a decrease in reliability due to condensation on the irradiation unit 523 is prevented.
  • the irradiation unit 523 is provided on the upper side of the specific container 228B.
  • the lid 514 positioned between the irradiation unit 523 and the specific container 228B is made of a light transmissive material.
  • the irradiation unit 523 may be provided at a position other than this.
  • the irradiation unit 523 may be provided on the side surface or the bottom surface of the specific container 228B.
  • at least a part of the material of the specific container 228B located between the irradiation unit 523 and the space in the specific container 228B is formed of a light transmissive material.
  • the types of irradiation unit 523 and the effects thereof will be described.
  • the irradiation unit 523 emits blue light having a wavelength of 400 nm to 500 nm.
  • the irradiation unit 523 is configured by a blue light emitting diode (LED).
  • LED blue light emitting diode
  • the crop vegetables in the specific container 228B irradiated with light through the lid 514 are promoted to be ecologically activated by light stimulation. Specifically, pores are opened to absorb mist and water droplets on the surface. This increases the water content and weight of the crop and keeps it fresh.
  • an LED having a wavelength including an ultraviolet region is used for the irradiation unit 523.
  • the sprayed mist is sterilized and the food surface is also sterilized. This increases food safety. Irradiation with such light inactivates the growth function of microorganisms attached to the wall surface of the specific container 228B and the food surface. As a result, the discoloration and rot of food produced by microorganisms and the occurrence of netting on the surface of stored products are delayed. That is, the hygiene inside the specific container 228B is maintained.
  • a LED with a small calorific value is used as the light source, the temperature rise in the vegetable compartment 114 is prevented, and the food storage stability is stabilized.
  • the specific container 228B it is possible to operate only the irradiation unit 523 without operating the spraying unit 431.
  • some mushrooms and fish contain many precursors of vitamin D that are essential for bone and tooth growth.
  • the molecules are excited and converted to vitamin D. Therefore, by providing a light source including ultraviolet light in the vegetable compartment 114, it is possible to increase the vitamin D content of a specific food in the vegetable compartment 114, for example, shirasuboshi, before storage.
  • the food to be stored is not limited to agricultural crops, and the specific container 228B can be used as a space having a ripening function by storing the food for ripening as described above.
  • the specific container 228B and the lid 514 for substantially sealing the space are provided in the vegetable compartment 114.
  • a water storage tank 425C is provided on the front surface in the specific container 228B, and an electrostatic atomization type spraying portion 431 included in the mist spraying device is provided above the back surface.
  • mist is sprayed on the crops stored in the specific container 228B, and harmful substances are lifted and decomposed.
  • freshness can be improved over humidification only for crops that prefer a humid environment.
  • the optimum storage environment can be provided in the vegetable compartment 114 depending on the type of vegetable.
  • the irradiation unit 523 irradiates light with a specific wavelength selected, and the spray unit 431 sprays an appropriate amount of fine mist that can pass through the pores. This further expands the range of storage environments in the specific container 228B, and can provide a spatial environment according to the needs of the user and stored vegetables.
  • the water storage tank 425C is provided in front of the specific container 228B, it is easy to use such as easy water supply, water exchange, addition, and cleaning.
  • the spray unit 431 is installed on the upper surface of the back where it is difficult for humans to touch, so it is highly safe.
  • the lid 514 covers the spraying part 431, so that it is not directly exposed to the cold air in the vegetable compartment 114, so that safety is further improved.
  • the irradiation unit 523 is installed outside the specific container 228B, the possibility of poor wiring due to condensation is reduced, and the reliability is improved.
  • the lid 514 is made of a light-transmitting material, light emitted from the irradiation unit 523 can pass through the container.
  • the specific container 228B is substantially a sealed space. Therefore, it is safe even when a combustible refrigerant such as isobutane or propane is used as a cooling device refrigerant for cooling the storage room such as the vegetable compartment 114. That is, even if the refrigerant leaks, the flammable concentration is not reached because the inside of the specific container 228B is almost sealed. Further, if the spraying part 431 is arranged at the upper part, safety is not impaired particularly when a flammable refrigerant having a specific gravity higher than that of air is used. This is because even if the refrigerant leaks, the leaked isobutane stays in the lower part.
  • a combustible refrigerant such as isobutane or propane is used as a cooling device refrigerant for cooling the storage room such as the vegetable compartment 114. That is, even if the refrigerant leaks, the flammable concentration is not reached because the inside of the specific container 228B is almost
  • the irradiation unit 523 may emit ultraviolet light in addition to emitting blue light.
  • the sprayed mist can be sterilized and the surface of the food can be sterilized, increasing food safety. be able to.
  • the decomposition of harmful substances attached to agricultural products is promoted.
  • the specific container 228B does not perform mist spraying in the vegetable compartment 114, and the force provided adjacent to the container 228A.
  • the specific container 228B does not perform mist V, the container 228A. It may be provided in a container about half the height of the vegetable compartment 114.
  • the specific container 228B located at the upper part can be slid backward, and the depth of the specific container 228B to be sprayed with mist is reduced. By avoiding the mist from accumulating at the bottom, the mist can reach every corner of the vegetable.
  • the space above and below the vegetable compartment 114 can be effectively used with two containers, increasing the amount of storage in the vegetable compartment 114 and the use of the user. ! It becomes possible to improve selfishness.
  • FIG. 27A is a side sectional view of the refrigerator in the eighth embodiment of the present invention.
  • FIG. 27B is a partial front view showing an outline of the refrigerator shown in FIG. 27A.
  • This refrigerator is different from the refrigerator shown in FIG. 5 of the third embodiment in that the refrigerator has a spray unit 76 shown in FIG. 1 of the first embodiment in place of the spray unit 123.
  • the spray unit 76 is provided on the top of the vegetable compartment 114.
  • a water storage tank 72A for supplying water to the spray section 76 is provided on the back side in the refrigerator compartment 112.
  • an ice making chamber 227 is provided next to the switching chamber 113.
  • Water supply path 73 supplies water from ice storage tank 119 to ice making room 227 and vegetable room 114.
  • Other basic configurations are the same as the refrigerator shown in FIG.
  • water is sent from the water tank 72A for ice making to the spray section 76 using the water supply path 73. Therefore, water can be supplied to the spray section 76 without providing a dedicated tank.
  • the water storage tank 72A is provided in the refrigerator compartment 112 which is a separate storage room from the vegetable compartment 114, it does not affect the internal volume of the vegetable compartment 114 and does not affect the food storage capacity.
  • a water storage tank 72A is provided, and the stored water supplied from the outside is supplied to the spray section 76.
  • water contained in the air in the vegetable compartment 114 may be extracted by some method and supplied to the spray unit 76.
  • the spray unit 76 may be disposed in the back of the vegetable compartment 114 and the supply unit 304 described in the fourth embodiment may be provided.
  • the water supply path 73 to the spray section 76 also sucks water from the water storage tank 72A, and then branches to supply water to both the ice making room 227 and the vegetable room 114. Therefore, water can be supplied to both chambers with a simple configuration with a small number of parts.
  • independent water supply paths may be provided for the ice making room 227 and the vegetable room 114, respectively. In that case, it becomes possible to replenish water at any time as needed. For example, water can be supplied arbitrarily even when both rooms require water supply simultaneously.
  • the water supply path 73 can be configured on the back side of the refrigerator even when the water storage tank 72A is also used for ice making. .
  • the water supply path 73 is short and can be made a simple vertical path. Because of this simple configuration, the water supply path 73 is highly hygienic as soon as it is cleaned.
  • the spray unit 76 on the back side of the top of the vegetable compartment 114, contact between the spray unit 76 and the food stored in the cabinet is prevented. Therefore, the adhesion of the spray tip is prevented and the spraying capability of the spray tip is extended. In addition, since the user cannot easily touch it, the safety to the user is improved.
  • FIG. 28 and 29 are a side sectional view and a front sectional view of the vicinity of the vegetable compartment of the refrigerator in the ninth embodiment of the present invention.
  • 30 is a cross-sectional view of the main part showing the AA cross section in FIG. 29, and
  • FIG. 31 is a cross-sectional view of the main part showing the B-B cross section.
  • Figure 32 shows the mistakes made in this embodiment. It is a graph which shows the particle diameter distribution ratio of To.
  • a vegetable room 114 and storage rooms 619 and 620 are provided in the heat insulating box 617 of the refrigerator.
  • the front opening of the vegetable compartment 114 is blocked by a door 400A so that there is no inflow of outside air.
  • a circulation duct 624 is provided in the back and bottom of the vegetable compartment 114.
  • a circulation air passage 625 is formed between the circulation duct 6 24 and the heat insulating box 617.
  • a spray portion 626 for spraying mist is provided in a portion corresponding to the back of the vegetable compartment 114 in the circulation air passage 625.
  • a diffusion unit 627 is disposed above the spray unit 626.
  • the spray unit 626 is, for example, any spray unit disclosed in the preceding embodiment. There may be a general sprayer.
  • the diffusion unit 627 is a blower fan, for example.
  • a plurality of discharge ports 628 are provided at the upper part of the vertical surface of the circulation duct 624.
  • a plurality of suction ports 629 are provided on the bottom surface.
  • Circulation air passage 625, circulation duct 624 constituting circulation air passage 625, discharge port 628 and suction port 629 provided in circulation duct 624, and diffusion portion 627 constitute mist circulation portion 630. Speak.
  • the selection unit 631 for selecting the particle diameter of the mist is composed of a diffusion unit 627 and a spray unit 626. The selection unit 631 is also a mist spraying device.
  • a drain 632 for discharging excess water from the circulation air passage 625 to the outside of the heat insulation box 617 is provided below the spray unit 626.
  • Temperature sensors 633 and 634 are provided at the top of the vegetable compartment 114 and the bottom of the circulation duct 624, respectively.
  • a heater 638 At the bottom of the circulation duct 624 is a heater 638 that heats the lower part of the vegetable compartment 1 14!
  • the door 400A is provided with plate-like slide rails 635 extending into the vegetable compartment 114 in two pairs on the left and right sides, and a food storage container (hereinafter referred to as a container) 636 is placed thereon. With the slide rail 635, the door 400A is pulled out and opened in the horizontal direction.
  • the discharge port 628 is positioned higher than the outer edge of the container 636 so that the mist always enters the container 636.
  • a plurality of ventilation holes 637 are provided on the bottom surface of the container 636.
  • the spraying unit 626 for example, water sprayed by atomizing water with ultrasonic waves may be used.
  • the particle size of the sprayed mist is distributed as shown in FIG.
  • FIG. 32 for example, when it is desired to obtain an effect, water particles having a predetermined particle diameter X or less corresponding to the effect can be taken out and sprayed by diffusion. That is, for example, in order to remove harmful substances on the surface of agricultural products stored in the vegetable compartment 114, as described in Embodiment 5, a mist having a particle size of 0.003 ⁇ m to 20 ⁇ m is used. Select it selectively.
  • the desired particle size X can be freely set and can be adjusted by the operating degree of the spraying part 626, the operating degree of the diffusing part 627, and the distance between the spraying part 626 and the diffusing part 627.
  • This operating degree refers to, for example, the vibration frequency when an ultrasonic vibration type spraying device is used for the spray unit 626 and the fan rotation speed when a blower fan is used for the diffusion unit 627.
  • the mist exceeding the particle size X that has dropped down is discharged from the drain 632 to the outside of the vegetable compartment 114.
  • the mist sprayed in the vegetable compartment 114 pours from above the container 636, that is, from above the stored crop.
  • the sprayed mist falls downward in the gap between the container 636 and the crop, or the gap between the crop and the crop.
  • the distance between the end portions of the plurality of discharge ports 628 is set to a size approximately equal to the lateral width of the container 636. For this reason, the distribution variation of the mist concentration in the lateral direction is suppressed.
  • a plurality of vent holes 637 are provided on the bottom surface of the container 636. The mist in the container 636 passes from the air outlet 637 to the bottom of the vegetable compartment 114.
  • the water in which the mist is agglomerated does not stay in the container 636, and no water accumulates at the bottom.
  • the force may be provided on the side wall surface of the container 636 as well as the force bottom surface provided with the vent 637 on the bottom surface.
  • the mist that has passed through the ventilation port 637 returns to the circulation air passage 625 from the suction port 629, and a part thereof is sprayed again into the vegetable compartment 114 by the diffusion unit 627. Some of the water droplets are discharged from the drain 632 to the outside of the vegetable compartment 114. In order to perform this drainage efficiently, it is preferable that the lower part of the circulation air passage 625 is inclined toward the drain 632 as shown in FIG.
  • the suction port 629 and the ventilation port 637 are provided at substantially the same position and communicated with each other.
  • the operating degree of the diffusion part 627 is adjusted, and the positions and areas of the discharge port 628, the vent 637, and the suction port 629 are adjusted. It is effective to make adjustments.
  • the degree of decrease in humidity is moderate, and it is safe to stop spraying mist for a certain period of time.
  • the operation of the spray unit 626 and the operation of the diffusion unit 627 are stopped.
  • the heater 638 provided in the circulation duct 624 is energized to heat the lower part of the vegetable compartment 114. Heating control of the heater 638 is controlled so that the temperature difference between the temperature sensor 633 provided on the top surface of the vegetable compartment 114 and the temperature sensor 634 provided at the bottom of the circulation duct 624 becomes a certain value.
  • the heater 638 may be a linear heater or a sheet heater as long as the heater generates heat substantially uniformly over a wide range. Further, the method of providing the temperature difference is not limited to using the heater 638.
  • the refrigerator according to the present embodiment includes the heat insulating box 617, the fog part 626, and the diffusion part 627.
  • the heat insulation box 617 has storage compartments 619 and 620 and a vegetable compartment 114 which are insulated.
  • the spraying unit 626 is provided in the vegetable compartment 114 and sprays mist.
  • the diffusion unit 627 diffuses the sprayed mist.
  • the spray unit 626 and the diffusion unit 627 constitute a mist spray device.
  • the sprayed mist is diffused and sprayed into the vegetable compartment 114 by the diffusion unit 627, so that the mist concentration in the vegetable compartment 114 is made uniform. This efficiently supplies mist around the crops. This minimizes the amount of mist sprayed. Therefore, dew condensation can be prevented and harmful substances can be removed from crops at the same time.
  • a mist circulation section 630 is provided in the vegetable compartment 114. Thereby, mist is further supplied to every corner in the vegetable compartment 114, and the spray amount of mist is reduced. Further, the mist circulation section 630 includes a circulation air passage 625, a circulation duct 624 constituting the circulation air passage 625, a discharge port 628 and a suction port 629 provided in the circulation duct 624, and a diffusion portion 627. . Therefore, adjustment of the amount of mist circulation and distribution becomes easy, and the amount of mist sprayed is further reduced.
  • the discharge port 628 is provided at a position higher than the crops stored in the vegetable compartment 114.
  • the suction port 629 is preferably provided below the crops stored in the vegetable compartment 114. This ensures that the mist is supplied to the bottom of the container 228C.
  • the selection unit 631 selects a mist having a particle diameter equal to or smaller than a certain particle size from the mist sprayed by the spray unit 626. Thereby, the minute mist is selectively sprayed. Therefore, the mist stays in the vegetable room 1 14 for a long time and is dispersed and supplied to the crops reliably.
  • the selection unit 631 is configured by providing a spray unit 626 below the diffusion unit 627. As a result, light particles having a certain particle diameter or less are selectively taken out of the sprayed mist and sprayed into the vegetable compartment 114.
  • a temperature difference is provided between the upper part and the lower part of vegetable room 114.
  • the natural convection of the air in the vegetable compartment 114 is promoted, and the sprayed mist easily diffuses in the vegetable compartment 114.
  • the spraying part 626 and the diffusion part 627 are temporarily Stopping is possible, improving the reliability of the component parts.
  • FIG. 33 is a side sectional view of the vegetable compartment of the refrigerator in the tenth embodiment of the present invention.
  • Fig. 34 is a side sectional view of the vegetable compartment, and
  • Fig. 35 is an enlarged view of the main part of the mist spraying device.
  • FIG. 36 is a diagram showing the pesticide removal performance of ozone water mist in the refrigerator shown in FIG.
  • This refrigerator is different from the refrigerator shown in FIG. 5 of Embodiment 3 in that a mist spraying device 21 is provided on the upper rear surface of the vegetable compartment 114.
  • the other basic configuration is the same as that of the refrigerator shown in FIG.
  • the mist spraying device 21 is a water storage tank 22 for storing ozone water, a spray nozzle (hereinafter referred to as nozzle) 23 for spraying ozone water by an ejector method, and a supply unit for supplying liquid to the water storage tank.
  • nozzle a spray nozzle
  • the nozzle 23 constitutes the spray tip.
  • the water storage tank 22 is provided in the heat insulating box 110 and is a holding unit that holds water as a liquid.
  • An ozone water supply port 24 is provided in the upper part of the water storage tank 22.
  • An ozone generator 25 that generates ozone by a high voltage method is provided in the vicinity of the vegetable compartment 114 and is connected to the ozone water path 27.
  • the ozone water path 27 is provided with a water supply path 28 piped from a water storage tank 72.
  • an annular electrode 29 for applying a high voltage and a power source 30 are provided near the tip of the nozzle 23.
  • the nozzle 23, the electrode 29, and the power source 30 constitute a spray portion.
  • the water storage tank 72 is provided in the refrigerator compartment 112 which is a compartment different from the vegetable compartment 114 which is a compartment provided with the spray tip of the heat insulating box 110.
  • ozone gas is generated by the ozone generator 25.
  • the water supplied from the water storage tank 72 via the water supply path 28 and the generated ozone gas are mixed to form ozone water.
  • This ozone water is supplied and stored in the water storage tank 22 from the ozone water supply port 24 via the ozone water path 27.
  • the ozone water in the water storage tank 22 is sprayed as a mist from the nozzle 23 into the vegetable compartment 114.
  • a high voltage is applied from the power source 30 to the annular electrode 29 provided near the tip of the nozzle 23.
  • the ozone water mist sprayed from the nozzle 23 is electrostatically added.
  • Figure 36 shows the removal effect of ozone water mist on tomato-attached pesticides in this configuration.
  • the experiment is performed by the following method. Adhering malathion to a concentration of 3-5ppm Store the cherry tomatoes in the vegetable compartment 114. At that time, ozone water mist is sprayed for 12 hours by intermittent spraying for 10 seconds at intervals of 20 minutes. The concentration of malathion remaining on the cherry tomato after such spraying is measured by gas chromatography, and the removal rate is calculated. For comparison, the concentration of malathion is also measured for cherry tomatoes stored in a vegetable room without a mist sprayer.
  • ozone water generated by mixing ozone and water in the vicinity of the vegetable compartment 114 is electrostatically introduced into the vegetable compartment 114 by the mist spraying device 21. Spray the added mist.
  • the sprayed fine mist uniformly adheres to the wall surface of the vegetable compartment 114 and the surface of the vegetable or fruit, and the mist enters the fine holes on the wall surface, the vegetable or fruit surface.
  • dirt and harmful substances inside the fine holes are lifted, so that the effect of removing dirt and harmful substances is enhanced.
  • it enhances the acid and sour decomposition effect of harmful substances on the surface of vegetables and improves the moisture retention of vegetables.
  • the water storage tank 72 is provided in the refrigerator compartment 112, which is a separate compartment from the vegetable compartment 114, which is the compartment provided with the spray section. In this configuration, the arrangement of the water storage tank 72 is not affected by the arrangement of the spray section. Therefore, the water storage tank 72 can be provided at an arbitrary position that facilitates replenishment of water into the water storage tank 72 and cleaning of the water storage tank 72. In this way, the use and convenience of the user are improved. The same applies to the water storage tank 72A of the eighth embodiment.
  • ozone water is generated by mixing water and ozone in the ozone water path 27.
  • an ozone generator may be provided in the vicinity of the mist spraying device 21 to generate ozone, which may be mixed with water in the nozzle 23 and sprayed as ozone water mist.
  • the ozone generator 25 may be provided in the water tank 22.
  • FIG. 37 is an enlarged view of a main part of another mist spraying apparatus according to Embodiment 10 of the present invention. High voltage method The ozone generator 25 that generates zon is provided in a portion of the water tank 22. The rest of the configuration is the same as in Figs.
  • the ozone generator 25 that generates ozone by the discharge method is immersed in the stored water in the water tank 22. This dissociates dissolved oxygen in the stored water in the water tank 22, generating ozone and OH radicals. Since the raw material oxygen is dissolved in water, the amount of ozone generated is much less than in air discharge, so the generated ozone is dissolved in the stored water. In this way, it does not require special materials, and it generates ozone water that has a simple structure, is safe for the human body and does not smell like ozone, and contains low-concentration ozone, stronger acidity than ozone, and OH radicals. Can be sprayed.
  • FIG. 38 is an enlarged view of a main part of another mist spraying device for a refrigerator according to Embodiment 10 of the present invention.
  • the mist spraying device 21 includes a water storage tank 22, a stored water supply unit 40, a capillary supply structure 42, and an electrode 43.
  • Reservoir 22 has functional water combined with ozone water and acid water! /! Stores water.
  • the stored water supply unit 40 supplies the stored water to the water tank 22.
  • One end of the capillary supply structure 42 is located in the water reservoir 22, and the other end is formed as a spray tip 41 in the vegetable compartment 114.
  • the electrode 43 is connected to the water tank 22 and applies a high voltage to the water stored in the water tank 22.
  • mist spraying device 21 configured as described above will be described below.
  • functional water or water is supplied to the water storage tank 22 from the storage water supply unit 40 and stored. It is.
  • a high voltage is applied to the electrode 43 in the water storage tank 22
  • a plurality of liquid yarns are drawn from the spray tip 41 by the electric field that exists between the spray tip 41 and its surroundings. Further, it is dispersed in charged droplets to become mist and sprayed into the vegetable compartment 114.
  • water is supplied from the water storage tank 72.
  • the drain water in the refrigerator is used and the drain water is supplied into the water tank,
  • the storage of the present invention has a disassembling part in addition to the box and the mist spraying device.
  • the mist spraying device generates mist and raises harmful substances such as residual agricultural chemicals attached to the surface of vegetables stored in the storage room inside the box.
  • the decomposition unit decomposes the toxic substances that have risen.
  • the sprayed mist enters the fine recesses on the surface of vegetables and fruits, and the pesticides and harmful substances remaining in the recesses are physically lifted by a small amount of water.
  • the decomposition part oxidizes and decomposes harmful substances such as agricultural chemicals that have been lifted, which improves food safety.
  • the storage of the present invention has a box, a mist spraying device, and a decomposition unit, and the mist spraying device sprays an acidolytic mist.
  • This acid-decomposable mist decomposes harmful substances such as residual agricultural chemicals attached to the vegetable surface.
  • the decomposition unit decomposes the decomposition products generated in this way and harmful substances such as residual agricultural chemicals that are unreacted with the oxidative degradable mist. As a result, decomposition products and unreacted harmful substances can be made harmless, which improves safety.
  • the decomposition unit in the storage of the present invention irradiates the crops in the storage with ultraviolet rays.
  • harmful substances such as residual agricultural chemicals can be made harmless without adversely affecting the vegetables.
  • the disassembly unit is configured with a simple configuration. Therefore, the number of components can be reduced, and the disassembly effect can be realized in a small space.
  • the decomposition part in the storage of the present invention irradiates ultraviolet rays having a wavelength of 220 nm or more and 400 nm or less. Thereby, the oxidative decomposition rate is improved.
  • the storage of the present invention further includes a control unit, and the control unit operates the disassembling unit after the mist spraying device operates.
  • the energy is used only for harmful substances such as agricultural chemicals and other unreacted substances from which the sprayed mist has peeled off. Therefore, the decomposition efficiency is improved.
  • the mist spraying device generates an acid-decomposable mist
  • the decomposition part decomposes unreacted materials that cannot be completely decomposed by the oxidative-decomposable mist.
  • the efficiency of acidification decomposition as a storage is improved.
  • the storage of the present invention further includes a door that covers the opening of the storage chamber, a detection unit that detects opening and closing of the door, and a control unit.
  • the control unit stops the operation of the disassembly unit when the detection unit detects the opening of the door. This prevents people from seeing direct UV irradiation when the door is opened, improving safety.
  • the storage of the present invention further includes a switch for operating the disassembly unit.
  • the disassembly unit can be operated only when it is recognized that a person has operated, thus improving safety.
  • a light shielding plate is provided around the disassembling portion. This will only irradiate the crops in the storage room where people do not see them directly. Therefore, safety is improved.
  • FIG. 39 is a side sectional view of the refrigerator in the eleventh embodiment of the present invention.
  • FIG. 40 is a block diagram of a control system in the refrigerator shown in FIG.
  • the refrigerator shown in Fig. 39 is different from the refrigerator shown in Fig. 5 in Embodiment 3 in that a decomposition unit 121 is provided together with a mist spraying device 120 on the upper top surface of the vegetable compartment 114, and the wall surface is It is resistant to UV degradation and has material strength. Resistant to UV degradation, the material is stainless steel or a resin material resistant to UV degradation. Resolution 121 has a peak wavelength of 250 It is an ultraviolet lamp that irradiates ultraviolet rays near nm. Further, as shown in FIG. 40, a control unit 106 for controlling the operation of the mist spraying device 120 and the decomposition unit 121 is provided. Since other configurations are the same as those shown in FIGS. 5 to 7, detailed description thereof is omitted.
  • mist spraying device 120 and the disassembling unit 121 of the refrigerator configured as described above will be described.
  • water is stored in the water tank 122.
  • the stored water 124 at this time is defrost water.
  • the power supply 128 applies a negative high voltage to the cathode 134 in the water tank 122, a plurality of liquid yarns are drawn from the spray tip 132 by the electric field that exists between the spray tip 132 and the anode 135. Furthermore, it is dispersed in charged droplets to become mist. This mist is sent into the vegetable compartment 114 by the blower 129.
  • mist is electrically attached to the surface of vegetables and fruits that are positively charged in the vegetable compartment 114. It penetrates into the fine recesses on the surface of vegetables and fruits, and toxic substances such as residual agricultural chemicals and wax are lifted by the internal pressure energy of the fine mist.
  • the ultraviolet rays emitted from the decomposition unit 121 decompose and remove harmful substances by the decomposition action.
  • water molecules in the mist are radicalized to generate OH radicals. Therefore, in addition to the acidity of ozone generated by discharge, the acidity of OH radicals enhances the decomposition performance of harmful substances such as agricultural chemicals.
  • Fig. 41 is a diagram comparing the pesticide removal performance in the refrigerator shown in Fig. 39 with conventional immersion specifications and water washing.
  • 10 cherry tomatoes with about 3 ppm of malathion were used and removed according to each specification.
  • the removal rate is calculated by measuring the residual malathion concentration after treatment by gas chromatography (GC).
  • treatment A place the above 10 cherry tomatoes in a bowl and wash with running water for about 10 seconds.
  • treatment B soak 10 cherry tomatoes in water containing lppm ozone for 1 hour.
  • This process corresponds to a process using a general food washing apparatus.
  • 10 cherry tomatoes are subjected to a mist spray treatment for 12 hours using a mist spraying device 120.
  • treatment E 10 cherry tomatoes are subjected to a mist spray treatment for 12 hours, and then irradiated with ultraviolet light having a peak wavelength of 250 nm and 1600 WZcm 2 by the decomposition unit 121 for 1 hour.
  • the ozone gas concentration in process C and process E is approximately 0.03 ppm.
  • the removal rate in treatment A is 20%, which is roughly equivalent to that of water washing at home. It can be seen that 80% of residual pesticides are not removed and are consumed by the human body. Treatment B also removes 55% of the pesticide residue.
  • the removal rate of treatment C was 50%, indicating that the removal efficiency of pesticide was almost the same as treatment B.
  • the removal rate of treatment E is 70%. This is thought to be because the attached pesticides were lifted by the physical action of the ultrafine mist and decomposed by ultraviolet rays. From the above results, the refrigerator having the mist spraying device 120 and the decomposition unit 121 in the present embodiment has a pesticide removal performance higher than that of a dedicated machine for food washing.
  • Fig. 42 compares the amount of residual malathion in water washed with water after pesticide removal using the mist spraying device 120 of the refrigerator shown in Fig. 39 and the amount of malathion in water after washing with pesticide under conventional immersion specifications.
  • treatment A place the above 10 cherry tomatoes in a bowl and wash with running water for about 10 seconds.
  • treatment B ' 10 cherry tomatoes are soaked in water containing lppm ozone for 1 hour. After that, wash it in running water for about 10 seconds with running water.
  • This process corresponds to a process using a general food washing apparatus.
  • process C ' 10 cherry tomatoes are subjected to mist spraying for 12 hours using mist spraying device 120. After that, wash it in running water for about 10 seconds with running water.
  • treatment E 10 cherry tomatoes are subjected to mist spraying for 12 hours and then irradiated with ultraviolet light having a peak wavelength of 250 nm and 1600 WZcm 2 for 1 hour by the decomposition unit 121. Then, wash in running water for about 10 seconds with running water.
  • the ozone gas concentration in process C 'and process E' is about 0.03 ppm.
  • the amount of malathion in tap water in treatment A is 100% of the amount of malathion removed. That is, malathion is not decomposed by tap water washing.
  • the amount of malathion in tap water in treatment B is about 20% of the amount of malathion removed.
  • the amount of malathion in tap water in treatment C ' was 20% of the amount of malathion removed.
  • the mist spraying device 120 and the dedicated device have equivalent decomposition performance.
  • the amount of malathion in tap water is below the detection limit even though the removal rate is 70%. This is thought to be due to the fact that malathion removed by ultraviolet rays is almost 100% decomposed.
  • the refrigerator having the mist spraying device 120 and the decomposition unit 121 can remove agricultural chemicals such as vegetables and has the ability to decompose the removed agricultural chemicals.
  • the refrigerator shown in FIG. 39 includes the mist spraying device 120 and the disassembling unit 121.
  • the mist spraying device 120 has a water storage tank 122 and a spraying section 123 that sprays the stored water 124.
  • the refrigerator according to this embodiment has such a simple structure and functions to remove and decompose harmful substances such as agricultural chemicals. Therefore, consumers can easily remove harmful substances such as agricultural chemicals by simply storing vegetables and fruits in the refrigerator.
  • ultrafine mist is sprayed into vegetable compartment 114.
  • the sprayed mist enters the fine recesses on the surface of vegetables and fruits, and removes harmful substances such as agricultural chemicals remaining in the recesses by physical action.
  • This harmful substance is decomposed by ultraviolet rays. That is, harmful substances such as agricultural chemicals can be removed and decomposed with a small amount of water.
  • the force using the spray unit 123 of the electrostatic atomization method is not limited to this.
  • an ultrasonic element is used for the spraying part, a large amount of spraying can be generated as compared with the electrostatic atomization method. Therefore, it is particularly effective when the spray amount needs to be increased.
  • harmful substances such as agricultural chemicals can be removed and decomposed according to the characteristics of each device, as long as it is possible to generate ultrafine mist as described above.
  • defrosted water is stored in water storage tank 122, and reserved water 124 is secured without the user supplying the stored water from the outside.
  • water may be supplied from the outside using a water storage tank or the like. With such a configuration, maintenance of the water storage tank is easy and a large amount of mist can be sprayed.
  • the holding unit for holding the stored water 124 is not limited to using the water storage tank 122.
  • the moisture contained in the air in the vegetable compartment 114 may be extracted and retained using a moisture absorbent (eg, a porous material such as silica gel, zeolite, activated carbon, etc.) as a water retention device.
  • a moisture absorbent eg, a porous material such as silica gel, zeolite, activated carbon, etc.
  • FIG. 43 is a side sectional view of another refrigerator according to the present embodiment.
  • FIG. 44 is a block diagram of a control system in the refrigerator shown in FIG.
  • the refrigerator shown in FIG. 43 includes a spray unit 74 including an ultrasonic element 80, a water storage tank 72 that supplies water to the spray unit 74 via a water supply path 73, and a disassembly unit 200.
  • the configuration of the spray section 74 is the same as that in FIGS. 2 and 3 in the first embodiment.
  • the spray unit 74, the water supply path 73, and the water storage tank 72 constitute a mist spraying device 61.
  • a control unit 107 that controls the operation of the mist spraying device 61 and the decomposition unit 200 is provided.
  • the rest of the configuration is the same as the configuration in FIG. The following description will be given with reference to FIGS.
  • the spray section 74 and the decomposition section 200 are provided on the top top of the vegetable compartment 114. Disassembly part
  • Reference numeral 200 denotes an ultraviolet LED that emits ultraviolet light having a peak wavelength of around 380 nm.
  • the stored water 84 is atomized by the ultrasonic element 80 which is the spray unit 74.
  • the high-speed expansion of the microbubbles generated by the ultrasonic element 80 and the compression destruction phenomenon decompose water molecules, and an acid-decomposable mist containing OH radicals is formed.
  • the acid-decomposable mist only a fine mist having a particle size equal to or smaller than a predetermined particle diameter is sprayed from the metal mesh 81 by an electric field between the metal mesh 81 and the metal plate 82. In this way, the spray section 7 4 is filled with mist having a predetermined particle diameter or less.
  • the fine mist is sprayed into the vegetable compartment 114 by the blower 77.
  • the sprayed fine mist adheres to the surface of vegetables and fruits in the vegetable compartment 114 and oxidizes and decomposes harmful substances such as agricultural chemicals attached to the surface of vegetables.
  • the control unit 107 energizes the ultrasonic element 80 and the power supply 83 of the mist spraying unit 61 and then energizes the decomposition unit 200 to irradiate ultraviolet rays.
  • the decomposition product oxidatively decomposed by the acid-decomposable mist is completely rendered harmless without deteriorating the heat insulating wall 116.
  • FIG. 45 is a diagram showing the relationship between the pesticide removal performance and the treatment time in the refrigerator shown in FIG.
  • 10 cherry tomatoes with about 3 ppm of malathion were used, treated with mist spraying device 61 for 12 hours, and then irradiated with ultraviolet rays by changing the irradiation time with decomposition unit 200. After that, measure the concentration of malathion by GC and calculate the removal rate of malathion.
  • the refrigerator shown in FIG. 43 includes the mist spraying device 61 and the disassembling unit 200.
  • the mist spraying device 61 includes a water storage tank 72 and a spraying unit 74 that sprays the stored water 84.
  • the disassembly unit 200 is composed of an ultraviolet LED. If the decomposition unit 200 irradiates the crops with ultraviolet rays for a long time, oxidative degradation equivalent to that of an ultraviolet lamp can be obtained. Further, the heat insulation wall 116 is not deteriorated by ultraviolet rays. Therefore, the material cost of the heat insulating wall 116 is reduced, and the heat insulating wall 116 has a long life. In addition, by setting the irradiation wavelength of the decomposition unit 200 in the vicinity of 350 nm, the influence of the ultraviolet rays on the human body can be made within a range where there is no problem.
  • FIG. 46 is a side sectional view of still another refrigerator according to Embodiment 11 of the present invention.
  • FIG. 47 is a block diagram of a control system in the refrigerator shown in FIG.
  • the refrigerator shown in FIG. 46 differs from the refrigerator shown in FIG. 39 in that a door open / close detection unit (hereinafter referred to as a detection unit) 330 is provided on the door 400A covering the opening of the vegetable compartment 114, and a switch 403 is provided in the refrigerator compartment. It is a point provided on the door 400B that covers the opening of 11 2. Another difference is that a light shielding plate 402 made of stainless steel is provided on the top top of the vegetable compartment 114 so as to surround the disassembly unit 121. Become. Further, as shown in FIG. 47, a control unit 108 is provided for controlling the operation of the disassembling unit 121 and the mist spraying device 120 by input from the detecting unit 330 and the switch 403. The detector 330 detects the opening and closing of the door 400A.
  • the detection unit 330 is composed of, for example, a micro switch pressure sensor. Otherwise, the configuration is the same as that shown in FIG.
  • the control unit 108 receives this, and the disassembly unit 121 is energized.
  • the switch 403 By providing the switch 403 in this way, it can be operated only when the user recognizes that the disassembly unit 121 has been operated. Therefore, safety is improved. Furthermore, since it can be operated only when needed by a person, it can reduce energy consumption compared to using it in continuous operation, leading to savings in electricity costs. It should be noted that a series of operations with the operation starting force of the mist spraying device 120 may be started by turning on the switch 403.
  • the control unit 108 supplies power to the disassembling unit 121 only when the detection unit 330 detects the closed state of the door 400A. In this way, the user is prevented from touching the ultraviolet rays, and safety is improved. Furthermore, by providing a light shielding plate 402 around the disassembly unit 121, it is possible to prevent the ultraviolet light from the disassembly unit 121 from being irradiated on the door 400A side. Therefore, when the user opens the door 400A, the ultraviolet rays are irradiated only to the stored items in the vegetable compartment 114 where the ultraviolet rays are not directly seen. Thus, safety is improved. Furthermore, the light-shielding plate 402 does not disperse the energy of ultraviolet rays irradiated to the crops in the vegetable compartment 114, so that the decomposition efficiency of harmful substances is improved.
  • the switch 403 that operates the disassembling unit 121 is only switched to ONZOFF.
  • a switch that allows the user to select the amount of ultraviolet light is preferable. In this case, a user is required Since the amount of UV light required at times can be selected, the energy used is reduced.
  • the light shielding plate 402 may be made of metal or glass that is less deteriorated by ultraviolet rays in addition to stainless steel.
  • the heat insulating wall 116 may be made of metal or glass that is less deteriorated by ultraviolet rays, in addition to being made of stainless steel.
  • the disassembling parts 121 and 200 are arranged on the top surface of the vegetable compartment 114.
  • the container 228 in the vegetable compartment 114 is made transparent, the same effect can be obtained regardless of where it is placed in the vegetable compartment 114.
  • the vegetable compartment 114 is arranged in the upper stage of the freezer compartment 115. In addition, if the vegetable compartment 114 is arranged at the lowest level, when using the vegetable compartment 114, the vegetable compartment 114 can be used more safely than ultraviolet rays directly enter the user's eyes.
  • the disassembling units 121 and 200 are energized after the operation of the mist spraying devices 120 and 61.
  • the control units 106, 107, and 108 all control as such. For this reason, energy can be used only for the decomposition of harmful substances such as agricultural chemicals and unreacted substances separated by the mist sprayed from the mist spraying devices 120 and 61, and the decomposition efficiency is improved.
  • the ultraviolet rays emitted from the decomposition sections 121 and 200 preferably have a wavelength of 220 nm or more and 400 nm or less. Thereby, the oxidative degradation rate of harmful substances such as agricultural chemicals is improved.
  • the storage according to the present invention can increase the safety of agricultural products under various circumstances in distribution.
  • the refrigerator to which this storage is applied has a simple structure and can improve the safety of crops at home and commercial facilities without impairing usability.

Abstract

A storage compartment and a refrigerator using the storage compartment. The storage compartment comprises a box and a mist sprayer. The box comprises storerooms for field crops therein. The mist sprayer generates mist by spraying a liquid into the storerooms. Then, the mist sprayer raises harmful substances adhered to the surfaces of the field crops stored in the storerooms or adhere the mist to the harmful substances adhered to the surfaces of the field crops stored in the storerooms.

Description

明 細 書  Specification
収納庫とそれを用いた冷蔵庫  Storage and refrigerator using it
技術分野  Technical field
[0001] 本発明はミストを野菜や果物などの農作物に付着している農薬などの有害物質を 浮き上がらせることで除去を容易にするためのミスト噴霧装置を有する収納庫とそれ を用いた冷蔵庫とに関する。  [0001] The present invention relates to a container having a mist spraying device for facilitating removal of mist by causing toxic substances such as agricultural chemicals adhering to crops such as vegetables and fruits to float, and a refrigerator using the same. About.
背景技術  Background art
[0002] 近年、食の安全性に対する消費者の不安は高!、。ある調査結果によれば、消費者 の約 9割は特に食品の残留農薬に対して不安を感じて 、ると 、う結果が出て 、る。こ れに呼応するように、残留農薬に対する安全性の確保のため、農家の農薬使用に対 する法規制や、人の健康面から食品への農薬の残留量に対する法規制は整備され つつある。それでも残留農薬が規定量を上回っている検査結果が出る場合がある。 このように違反の農産物が検出されている。違反率の高い残留農薬は主には海外か らポストハーべスト目的で使用された農薬で、その中には日本国内では使用禁止さ れている農薬も多くある。  [0002] In recent years, consumers are worried about food safety! According to some survey results, about 90% of consumers are particularly worried about residual pesticides in foods. In response to this, in order to ensure the safety of pesticide residues, laws and regulations on the use of agricultural chemicals by farmers and laws and regulations on the residual amount of pesticides in foods from the viewpoint of human health are being developed. Still, there may be a test result that the pesticide residue exceeds the specified amount. Violated agricultural products are thus detected. Residual pesticides with high violation rates are mainly pesticides used overseas for post-harvest purposes, and many of them are prohibited in Japan.
[0003] このような残留農薬の実態の中、消費者が安心して食生活を送るために、残留農 薬を除去する装置の必要性は高い。例えば、特開平 9— 75050号公報は食物洗浄 装置を開示している。この食物洗浄装置は、野菜や果物などに付着している農薬等 の有害物質を除去する機能を有する。図 48はこのような従来の食物洗浄装置を示し ている。  [0003] In the actual situation of such residual agricultural chemicals, there is a high need for an apparatus for removing residual agricultural chemicals so that consumers can live a safe diet. For example, Japanese Patent Laid-Open No. 9-75050 discloses a food washing apparatus. This food cleaning device has a function of removing harmful substances such as agricultural chemicals adhering to vegetables and fruits. Figure 48 shows such a conventional food cleaning device.
[0004] 洗浄液 2には通常、水道水が使用される。洗浄槽 1の側壁には洗浄液 2を供給する 供給管 12が接続され、洗浄槽 1の底部には洗浄液を排出する排出管 13が接続され ている。また、供給管 12と排出管 13には電磁弁 14、 15が設けられている。  [0004] Tap water is usually used as the cleaning liquid 2. A supply pipe 12 for supplying the cleaning liquid 2 is connected to the side wall of the cleaning tank 1, and a discharge pipe 13 for discharging the cleaning liquid is connected to the bottom of the cleaning tank 1. The supply pipe 12 and the discharge pipe 13 are provided with solenoid valves 14 and 15, respectively.
[0005] 洗浄液 2に微細気泡を発生させる気泡発生部 3は、ェジヱクタ 6と流体ポンプ 4と分 岐部 9とを有する。ェジ クタ 6には微細気泡となる気体を吸引する吸引管 7が設けら れている。流体ポンプ 4は洗浄液 2を搬送させるとともに、洗浄液 2を加圧して気体を 溶解させる。分岐部 9は洗浄槽 1内の洗浄液 2を再びェジェクタ 6に戻す。この洗浄液 2は、溶解された気体が減圧されて析出した微細気泡を含んでいる。洗浄液 2を搬送 する搬送管 5は、洗浄槽 1とェジェクタ 6、およびェジェクタ 6と流体ポンプ 4とを接続し ている。吐出管 8は、液体改質部 16を介して流体ポンプ 4と分岐部 9とを接続してい る。戻し管 11は、分岐部 9とェジェクタ 6とを接続している。 The bubble generating unit 3 that generates fine bubbles in the cleaning liquid 2 includes an ejector 6, a fluid pump 4, and a branching unit 9. The ejector 6 is provided with a suction pipe 7 for sucking a gas that becomes fine bubbles. The fluid pump 4 conveys the cleaning liquid 2 and pressurizes the cleaning liquid 2 to dissolve the gas. The branch section 9 returns the cleaning liquid 2 in the cleaning tank 1 to the ejector 6 again. This cleaning solution 2 includes fine bubbles deposited by depressurizing the dissolved gas. A transport pipe 5 that transports the cleaning liquid 2 connects the cleaning tank 1 and the ejector 6, and the ejector 6 and the fluid pump 4. The discharge pipe 8 connects the fluid pump 4 and the branching section 9 via the liquid reforming section 16. The return pipe 11 connects the branch portion 9 and the ejector 6.
[0006] 液体改質部 16は食物に付着している汚染物質を溶出させる。液体改質部 16は流 体ポンプ 4と分岐部 9との間に設けられている。液体改質部 16では、洗浄液 2がシク ロケィ酸塩ィ匕合物と接触することにより、汚染物質を溶出させるように改質される。  [0006] The liquid reforming unit 16 elutes contaminants adhering to food. The liquid reforming section 16 is provided between the fluid pump 4 and the branch section 9. In the liquid reforming unit 16, the cleaning liquid 2 is reformed so as to elute the pollutant when it comes into contact with the chlorosilicate compound.
[0007] 汚染分解部 17は、オゾン発生装置 18と気体ポンプ 19と電磁弁 20とを有する。ォゾ ン発生装置 18は、高圧放電を利用してオゾンを発生させる。気体ポンプ 19はオゾン 発生装置 18で発生したオゾンを洗浄槽 1に供給する。電磁弁 20は、オゾンの供給と 洗浄液 2の流入とを防止する。  The pollution decomposition unit 17 includes an ozone generator 18, a gas pump 19, and a solenoid valve 20. The ozone generator 18 generates ozone using high-pressure discharge. The gas pump 19 supplies the ozone generated by the ozone generator 18 to the cleaning tank 1. The solenoid valve 20 prevents the supply of ozone and the inflow of the cleaning liquid 2.
[0008] 以上のように構成された食物洗浄装置にお!、て、以下その動作につ!、て説明する 。制御部（図示せず)から洗浄開始の信号が発せられると電磁弁 14が開き、洗浄液 2 が供給管 12から洗浄槽 1に供給される。洗浄槽 1内の洗浄液 2が所定の量になると 電磁弁 14が閉じ、供給が停止される。  [0008] The operation of the food washing apparatus configured as described above will be described below. When a cleaning start signal is issued from a control unit (not shown), the electromagnetic valve 14 is opened, and the cleaning liquid 2 is supplied from the supply pipe 12 to the cleaning tank 1. When the cleaning solution 2 in the cleaning tank 1 reaches a predetermined amount, the solenoid valve 14 is closed and the supply is stopped.
[0009] 次に流体ポンプ 4が作動し、洗浄液 2は搬送管 5を通りェジェクタ 6に搬送される。  Next, the fluid pump 4 operates, and the cleaning liquid 2 is transported to the ejector 6 through the transport pipe 5.
洗浄液 2は、ェジヱクタ 6に設けられている吸引管 7から吸引された空気を巻き込む。 洗浄液 2に巻き込まれた空気は流体ポンプ 4によって加圧されて洗浄液 2に溶解する  The cleaning liquid 2 entrains the air sucked from the suction pipe 7 provided in the ejector 6. The air entrained in the cleaning liquid 2 is pressurized by the fluid pump 4 and dissolved in the cleaning liquid 2.
[0010] その後、洗浄液 2は吐出管 8を通り液体改質部 16によって活性ィ匕される。そして洗 浄液 2は減圧ノズル 10で加圧され、溶解していた空気の析出により微細気泡を発生 した状態で洗浄槽 1内に噴出される。減圧ノズル 10では加圧された洗浄液 2を減圧 させるために圧損を高くして噴出流量を少なくしている。そのため、過剰の洗浄液 2は 戻し管 11に導かれ、気泡発生部 3内を循環する。 Thereafter, the cleaning liquid 2 is activated by the liquid reforming unit 16 through the discharge pipe 8. Then, the cleaning liquid 2 is pressurized by the pressure reducing nozzle 10 and ejected into the cleaning tank 1 in a state where fine bubbles are generated by the precipitation of dissolved air. In order to depressurize the pressurized cleaning liquid 2, the pressure reducing nozzle 10 increases the pressure loss and decreases the ejection flow rate. Therefore, the excess cleaning liquid 2 is guided to the return pipe 11 and circulates in the bubble generation unit 3.
[0011] 一方、流体ポンプ 4の作動と同時に、汚染分解部 17が作動し、オゾンが洗浄槽 1内 の洗浄液 2に供給される。洗浄槽 1に入れられた野菜や果物などの農作物は洗浄液 2によって洗净される。  On the other hand, simultaneously with the operation of the fluid pump 4, the pollution decomposition unit 17 is operated, and ozone is supplied to the cleaning liquid 2 in the cleaning tank 1. Agricultural crops such as vegetables and fruits in washing tank 1 are washed with washing liquid 2.
[0012] 上記従来の構成では、農作物を洗浄液に浸漬し、オゾンガスを含む微細気泡の物 理的作用、化学的作用によって、農薬等の有害物質を除去する。このような専用機 器には洗浄槽 1や排水管が必要であり、構造が複雑で大掛力りな装置になる。また、 上記従来の構成では、農作物を洗浄液 2に浸漬するため、大量の水が必要である。 発明の開示 [0012] In the conventional configuration described above, a fine bubble containing ozone gas is produced by immersing a crop in a cleaning solution. Remove harmful substances such as pesticides by physical and chemical action. Such dedicated equipment requires a washing tank 1 and a drain pipe, and the structure is complex and a heavy load device. Moreover, in the above conventional configuration, a large amount of water is required because the agricultural product is immersed in the cleaning liquid 2. Disclosure of the invention
[0013] 本発明の収納庫は、箱体とミスト噴霧装置とを有する。箱体は内部に農作物用の貯 蔵室を有する。ミスト噴霧装置は貯蔵室内に液体を噴霧してミストを発生させる。そし てミスト噴霧装置はミストによって、貯蔵室に収納された農作物の表面に付着した有 害物質を浮き上がらせるか、あるいはミストを、貯蔵室に収納された農作物の表面に 付着した有害物質に付着させる。このように、専用の洗浄機器を用いなくても、野菜 の収納室内で少量の水によりミストで有害物質の除去を容易にすることができるので 、使用者は有害物質を容易に除去することができる。また本発明の冷蔵庫は上記収 納庫に冷却装置を付加し、箱体として断熱箱体を用いることにより構成される。  [0013] The storage of the present invention includes a box and a mist spraying device. The box has a storage room for crops inside. The mist spraying device sprays liquid into the storage chamber to generate mist. The mist spraying device lifts up harmful substances attached to the surface of the crop stored in the storage room, or attaches the mist to the harmful substances attached to the surface of the crop stored in the storage room. . As described above, since a mist can be easily removed with a mist with a small amount of water in a vegetable storage room without using a dedicated cleaning device, the user can easily remove the toxic substance. it can. The refrigerator of the present invention is configured by adding a cooling device to the storage and using a heat insulating box as a box.
図面の簡単な説明  Brief Description of Drawings
[0014] [図 1]図 1は本発明の実施の形態 1における収納庫の側断面図である。 FIG. 1 is a side sectional view of a storage case according to Embodiment 1 of the present invention.
[図 2]図 2は図 1に示す収納庫における補給部の側断面図である。  2 is a side cross-sectional view of a replenishing section in the storage shown in FIG.
[図 3]図 3は図 1に示す収納庫における補給部の平面断面図である。  3 is a cross-sectional plan view of a replenishing section in the storage shown in FIG.
[図 4]図 4は本発明の実施の形態 2における収納庫の側断面図である。  FIG. 4 is a side cross-sectional view of a storage case in Embodiment 2 of the present invention.
[図 5]図 5は本発明の実施の形態 3における冷蔵庫の側断面図である。  FIG. 5 is a side sectional view of the refrigerator in the third embodiment of the present invention.
[図 6]図 6は図 5に示す冷蔵庫におけるミスト噴霧装置の側断面図である。  6 is a side sectional view of the mist spraying device in the refrigerator shown in FIG.
[図 7]図 7は図 6に示すミスト噴霧装置の A— A線断面図である。  FIG. 7 is a cross-sectional view taken along line AA of the mist spraying apparatus shown in FIG.
[図 8]図 8は図 6に示すミスト噴霧装置の農薬除去性能を示す図である。  FIG. 8 is a diagram showing the pesticide removal performance of the mist spraying device shown in FIG.
[図 9]図 9は図 6に示すミスト噴霧装置の農薬除去性能のミスト粒子径に対する特性を 示す図である。  [FIG. 9] FIG. 9 is a graph showing the characteristics of the pesticide removal performance of the mist spraying apparatus shown in FIG. 6 with respect to the mist particle diameter.
[図 10]図 10は図 6に示すミスト噴霧装置の農薬除去性能のミスト噴霧量に対する特 性を示す図である。  [FIG. 10] FIG. 10 is a diagram showing the characteristics of the mist spraying performance of the mist spraying device shown in FIG. 6 with respect to the mist spray amount.
[図 11]図 11は本発明の実施の形態 4における冷蔵庫の側断面図である。  FIG. 11 is a side cross-sectional view of the refrigerator in the fourth embodiment of the present invention.
[図 12]図 12は図 11に示す冷蔵庫のミスト噴霧装置の縦断面図である。  FIG. 12 is a longitudinal sectional view of the mist spraying device for the refrigerator shown in FIG.
[図 13]図 13は図 12に示すミスト噴霧装置近傍の正面図である。 [図 14]図 14は図 12に示すミスト噴霧装置の要部縦断面図である。 FIG. 13 is a front view of the vicinity of the mist spraying device shown in FIG. FIG. 14 is a longitudinal sectional view of an essential part of the mist spraying device shown in FIG.
[図 15]図 15は図 12に示すミスト噴霧装置の機能ブロック図である。  FIG. 15 is a functional block diagram of the mist spraying device shown in FIG.
[図 16]図 16は図 12に示すミスト噴霧装置の制御フロー図である。  FIG. 16 is a control flow diagram of the mist spraying device shown in FIG.
[図 17]図 17は本発明の実施の形態 4における他のミスト噴霧装置の縦断面図である 圆 18]図 18は図 12に示すミスト噴霧装置の農薬除去性能のミスト粒子径に対する特 性を示す図である。  [FIG. 17] FIG. 17 is a longitudinal sectional view of another mist spraying device in Embodiment 4 of the present invention. [18] FIG. 18 is a characteristic of the mist spraying performance of the mist spraying device shown in FIG. 12 with respect to the mist particle diameter. FIG.
圆 19]図 19は図 12に示すミスト噴霧装置の農薬除去性能のミスト噴霧量に対する特 性を示す図である。 [19] FIG. 19 is a diagram showing the characteristics of the mist spraying performance of the mist spraying apparatus shown in FIG. 12 with respect to the amount of mist spraying.
圆 20]図 20は本発明の実施の形態 5におけるミストの粒子径と噴霧量と、農薬除去 効果との相関図である。 20] FIG. 20 is a correlation diagram between the particle diameter of mist, the spray amount, and the pesticide removal effect in Embodiment 5 of the present invention.
圆 21A]図 21Aは本発明の実施の形態 5における農薬除去性能のミスト粒子径に対 する特性を示す図である。 [21A] FIG. 21A is a diagram showing characteristics of the pesticide removal performance with respect to the mist particle diameter in the fifth embodiment of the present invention.
圆 21B]図 21Bは本発明の実施の形態 5における農薬除去性能のミスト噴霧量に対 する特性を示す図である。 [21B] FIG. 21B is a diagram showing characteristics of the pesticide removal performance with respect to the mist spray amount in the fifth embodiment of the present invention.
[図 22]図 22は本発明の実施の形態 6における冷蔵庫の側断面図である。  FIG. 22 is a side cross-sectional view of the refrigerator in the sixth embodiment of the present invention.
[図 23]図 23は図 22に示す冷蔵庫の噴霧部近傍の縦断面図である。  FIG. 23 is a longitudinal sectional view of the vicinity of the spray section of the refrigerator shown in FIG.
[図 24]図 24は本発明の実施の形態 6における他のミスト噴霧装置の縦断面図である 圆 25]図 25は本発明の実施の形態 7における冷蔵庫の野菜室近傍の正面図である  FIG. 24 is a longitudinal sectional view of another mist spraying apparatus according to Embodiment 6 of the present invention. FIG. 25 is a front view of the vicinity of the vegetable compartment of the refrigerator according to Embodiment 7 of the present invention.
[図 26]図 26は図 25に示す冷蔵庫の野菜室近傍の A— A線での縦断面図である。 FIG. 26 is a longitudinal sectional view taken along line AA in the vicinity of the vegetable compartment of the refrigerator shown in FIG.
[図 27A]図 27Aは本発明の実施の形態 8における冷蔵庫の側断面図である。  FIG. 27A is a side sectional view of the refrigerator in the eighth embodiment of the present invention.
[図 27B]図 27Bは図 27Aに示す冷蔵庫の概略を示す部分正面図である。  FIG. 27B is a partial front view schematically showing the refrigerator shown in FIG. 27A.
圆 28]図 28は本発明の実施の形態 9における冷蔵庫の野菜室付近の側面断面図で ある。 [28] FIG. 28 is a side sectional view of the vicinity of the vegetable compartment of the refrigerator according to the ninth embodiment of the present invention.
[図 29]図 29は図 28に示す冷蔵庫の野菜室付近の正面断面図である。  FIG. 29 is a front sectional view of the vicinity of the vegetable compartment of the refrigerator shown in FIG.
[図 30]図 30は図 29における A— A断面を示す要部断面図である。 [図 31]図 31は図 29における B— B断面を示す要部断面図である。 30 is a cross-sectional view of the principal part showing the AA cross section in FIG. 29. FIG. FIG. 31 is a cross-sectional view of the principal part showing the BB cross section in FIG. 29.
[図 32]図 32は本発明の実施の形態 9において噴霧されるミストの粒子径分布割合を 示すグラフである。  FIG. 32 is a graph showing a particle size distribution ratio of mist sprayed in the ninth embodiment of the present invention.
[図 33]図 33は本発明の実施の形態 10における冷蔵庫の側断面図である。  FIG. 33 is a side sectional view of the refrigerator in the tenth embodiment of the present invention.
[図 34]図 34は図 33に示す冷蔵庫の野菜室の側断面図である。  FIG. 34 is a side sectional view of the vegetable compartment of the refrigerator shown in FIG.
[図 35]図 35は図 33に示す冷蔵庫のミスト噴霧装置の要部拡大図である。  FIG. 35 is an enlarged view of a main part of the mist spraying device for the refrigerator shown in FIG.
[図 36]図 36は図 33に示す冷蔵庫のオゾン水ミストの農薬除去性能を示す図である。  FIG. 36 is a diagram showing the pesticide removal performance of ozone water mist in the refrigerator shown in FIG. 33.
[図 37]図 37は本発明の実施の形態 10における冷蔵庫の他のミスト噴霧装置の要部 拡大図である。  FIG. 37 is an enlarged view of a main part of another mist spraying apparatus for a refrigerator according to Embodiment 10 of the present invention.
[図 38]図 38は本発明の実施の形態 10における冷蔵庫のさらに他のミスト噴霧装置 の要部拡大図である。  FIG. 38 is an enlarged view of a main part of still another mist spraying device for a refrigerator according to Embodiment 10 of the present invention.
[図 39]図 39は本発明の実施の形態 11における冷蔵庫の側断面図である。  FIG. 39 is a side sectional view of the refrigerator in the eleventh embodiment of the present invention.
[図 40]図 40は図 39に示す冷蔵庫における制御系のブロック図である。  FIG. 40 is a block diagram of a control system in the refrigerator shown in FIG.
圆 41]図 41は図 39に示す冷蔵庫のミスト噴霧装置と分解部とによる農薬除去性能を 示す図である。 [41] FIG. 41 is a diagram showing the pesticide removal performance of the refrigerator mist spraying device and the decomposition unit shown in FIG.
[図 42]図 42は図 39に示す冷蔵庫のミスト噴霧装置と分解部とによる処理後の洗浄水 中に残留する農薬の割合を示す図である。  [FIG. 42] FIG. 42 is a diagram showing the proportion of pesticides remaining in the wash water after the treatment by the mist spraying device and the decomposition unit of the refrigerator shown in FIG. 39.
[図 43]図 43は本発明の実施の形態 11における他の冷蔵庫の側断面図である。  FIG. 43 is a side sectional view of another refrigerator according to the eleventh embodiment of the present invention.
[図 44]図 44は図 43に示す冷蔵庫における制御系のブロック図である。  FIG. 44 is a block diagram of a control system in the refrigerator shown in FIG. 43.
圆 45]図 45は図 43に示す冷蔵庫の分解部の照射時間による分解性能を示す図で ある。 [45] FIG. 45 is a diagram showing the decomposition performance according to the irradiation time of the decomposition section of the refrigerator shown in FIG.
[図 46]図 46は本発明の実施の形態 11におけるさらに他の冷蔵庫の側断面図である  FIG. 46 is a side sectional view of still another refrigerator according to Embodiment 11 of the present invention.
[図 47]図 47は図 46に示す冷蔵庫における制御系のブロック図である。 FIG. 47 is a block diagram of a control system in the refrigerator shown in FIG. 46.
[図 48]図 48は従来の食物洗浄装置の概略構成図である。 FIG. 48 is a schematic configuration diagram of a conventional food washing apparatus.
符号の説明 Explanation of symbols
1 洗浄槽  1 Washing tank
2 洗浄液 気泡発生部 流体ポンプ 搬送管 ェジェクタ 吸引管 吐出管 分岐部 減圧ノズル 戻し管 供給管 排出管 2 Cleaning solution Bubble generating part Fluid pump Conveying pipe Ejector Suction pipe Discharging pipe Branching part Depressurizing nozzle Return pipe Supply pipe Discharge pipe
15, 20 電磁弁 液体改質部 汚染分解部 オゾン発生装置 気体ポンプ ミスト噴霧装置 貯水槽 噴霧ノズル オゾン水供給口 オゾン発生体 オゾン水経路 水供給経路 電源  15, 20 Solenoid valve Liquid reforming unit Pollution decomposing unit Ozone generator Gas pump Mist sprayer Water tank Spray nozzle Ozone water supply port Ozone generator Ozone water path Water supply path Power supply
水供給口 貯留水供給部 噴霧先端部 毛細管供給構造体 電極Water supply port Reservoir supply unit Spray tip Capillary supply structure Electrode
, 63 , 63
レ 箱体  Box
ϋ  ϋ
ミスト噴霧装置 自動車 Mist spraying equipment automobile
, 90 収納庫 , 90 storage
貯蔵室 Storage room
, 72A 貯水タンク 給水経路 噴霧部 , 72A Water storage tank Water supply route Spray section
送風部  Air blower
超音波素子 金属メッシュ 金属板  Ultrasonic element Metal mesh Metal plate
電源  Power supply
貯留水  Stored water
温度センサ2 蒸発器 Temperature sensor 2 Evaporator
3 機械室3 Machine room
4 圧縮機4 Compressor
5 凝縮器5 Condenser
6, 107, 108 Ϊ0 断熱箱体1, 111A, 111B2 冷蔵室6, 107, 108 Ϊ0 Insulated box 1, 111A, 111B2 Refrigerated room
3 切替室3 Switching room
4 野菜 115 冷凍室 4 vegetables 115 Freezer
116 断熱壁  116 Insulation wall
120 ミスト噴霧装置 120 Mist spraying device
121， 200 分解部121, 200 disassembly section
122 貯水槽 122 water tank
123 噴霧部  123 Spraying section
124 貯留水  124 Reservoir
128 電源  128 power supply
129 送風部  129 Air blower
132 噴霧先端部 132 Spray tip
133 毛細管供給構造体133 Capillary supply structure
134 陰極 134 Cathode
135 陽極  135 anode
202 外壁  202 Exterior wall
227 製氷室  227 Ice making room
228, 228A 容器 228, 228A container
228B 1 特定容器 228B 1 Specific container
229 風路  229 wind path
301 噴霧部  301 Spraying section
302, 302A ミスト噴霧装 302, 302A Mist spraying equipment
303 給水部 303 water supply
304 供給部  304 Supply section
305 接続部  305 connection
306 カバー部材 306 Cover member
307 循環風路 307 Circulating air passage
308, 309 循環風路 308, 309 Circulating air passage
310 ホーン 310 horn
31 OA 噴霧先端部 311 圧電素子 31 OA spray tip 311 Piezoelectric element
312 フランジ部  312 Flange
313 貯水槽  313 water tank
314 制御部  314 Controller
317 送風部  317 Air blower
321 水収集板  321 Water collection board
323 オゾン発生体  323 Ozone generator
325 野菜室温度検知部 325 Vegetable room temperature detector
326 野菜室湿度検知部326 Vegetable room humidity detector
327 水収集板温度検知部327 Water collecting plate temperature detector
328 加熱部 328 Heating unit
330 ドア開閉検知部 330 Door open / close detector
350 5¾すし 350 5¾ Sushi
351 長径  351 major axis
352 短径  352 minor axis
400A, 400B 扉  400A, 400B door
402 遮光板  402 Shading plate
403 スィッチ  403 switch
404, 404A ミスト噴霧装價 404, 404A mist spraying equipment
405 ホノレダ一 405 Honoreda
406 印加電極  406 Applied electrode
406A 噴霧先端部 406A Spray tip
407 保水材 407 Water retention material
408 対向電極  408 Counter electrode
409 電圧印加部  409 Voltage application section
412 温度検知部  412 Temperature detector
413 加熱部  413 Heating unit
414 制御部 420 凹部414 Control unit 420 recess
425, 425B, 425C425, 425B, 425C
425A 底面425A bottom
426 供給水426 Water supply
431 噴霧部431 Spraying section
431A 下端431A bottom edge
441 給水部441 Water Supply Department
442 給水経路442 Water supply route
444 給水調整部444 Water supply adjustment unit
501 カバー部材501 Cover member
501A 底面部501A Bottom
512 レール部材512 Rail member
514 蓋 514 lid
515 保持部 515 Holding part
516 突起部516 Protrusion
523 照射部523 Irradiation part
524 拡散板524 Diffuser
617 断熱箱体617 heat insulation box
619, 620 貯蔵室619, 620 storage room
624 循環ダクト624 Circulation duct
625 循環風路625 Circulation air passage
626 噴霧部626 Spraying section
627 拡散部627 Diffusion part
628 吐出口628 Discharge port
629 吸入口629 inlet
630 循環部630 Circulation section
631 選択部631 Selection part
632 ドレン 633, 634 温度センサ 632 Drain 633, 634 Temperature sensor
635 スライドレーノレ  635 Slide Lenore
636 食品収納容器  636 Food storage container
637 通気口  637 Vent
638 ヒータ  638 heater
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0016] 本発明による収納庫は箱体と、ミスト噴霧装置とを有する。箱体は内部に農作物用 の貯蔵室を有する。ミスト噴霧装置は貯蔵室内に液体を噴霧してミストを発生させるこ とにより、ミストによって、貯蔵室に収納された農作物の表面に付着した農薬の有害 物質を浮き上がらせる、もしくはミストを貯蔵室に収納された農作物の表面に付着し た農薬の有害物質に付着させる。これにより、噴霧したミストが農作物表面の微細な 凹部に入り込み、凹部に残留している農薬の有害物質をミストが物理的作用、化学 的作用の相乗効果により、除去される。もしくはミストを残留農薬等の有害物質に付 着させることで少量の水で有害物質を浮き上がらせ除去を容易にする。このような構 成は、冷蔵庫の野菜室や、流通におけるコンテナなど農作物を収納する様々な形態 に適用できる。 The storage according to the present invention includes a box and a mist spraying device. The box has a storage room for crops inside. The mist spraying device generates a mist by spraying a liquid in the storage chamber, so that the mist causes the harmful substances of agricultural chemicals adhering to the surface of the crop stored in the storage chamber to rise, or the mist is stored in the storage chamber. Adhere to the harmful substances of pesticides attached to the surface of the cultivated crops. As a result, the sprayed mist enters the fine recesses on the crop surface, and the pesticidal harmful substances remaining in the recesses are removed by the synergistic effect of the physical and chemical action. Or, by attaching mist to harmful substances such as pesticide residues, the harmful substances are lifted with a small amount of water to facilitate removal. Such a configuration can be applied to various forms for storing agricultural products such as vegetable rooms in refrigerators and containers for distribution.
[0017] 以下、本発明の実施の形態について図面を参照しながら説明する。なお、各実施 の形態において先行する実施の形態の同様の構成をなすものには同じ符号を付し て説明し、詳細な説明を省略する。  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each embodiment, components having the same configuration as the preceding embodiment will be described with the same reference numerals, and detailed description thereof will be omitted.
[0018] (実施の形態 1) [0018] (Embodiment 1)
本発明による収納庫では、箱体として農作物の輸送に使用される輸送コンテナを用 いる。これにより貯蔵室に貯蔵された食品を消費先に届ける前に有害物質を除去ま たは浮き上がらせることができる。  In the storage according to the present invention, a transport container used for transporting crops is used as a box. As a result, harmful substances can be removed or lifted before the food stored in the storage room is delivered to the consumer.
[0019] 一般的に、野菜や果物は収穫後に市場やスーパーマーケット等へ輸送されるが、 輸送には長時間必要である。この時間を利用して貯蔵室内に保存されている野菜や 果物にミストを噴霧する。これによつて、消費者が安心して食生活を送るために、残留 農薬の除去を容易にするための前処理を行うことができる。 [0019] Generally, vegetables and fruits are transported to markets, supermarkets, etc. after harvesting, but transportation requires a long time. Use this time to spray mist on vegetables and fruits stored in the storage room. As a result, pre-treatment for facilitating the removal of residual pesticides can be performed in order for consumers to live with peace of mind.
[0020] 図 1は本発明の実施の形態 1における収納庫の側断面図、図 2は図 1に示す収納 庫における水補給部の側断面図である。図 3は図 1に示す収納庫における補給部の 平面断面図である。 FIG. 1 is a side cross-sectional view of a storage case according to Embodiment 1 of the present invention, and FIG. 2 is the storage shown in FIG. It is a sectional side view of the water supply part in a store | warehouse | chamber. FIG. 3 is a cross-sectional plan view of the replenishing section in the storage shown in FIG.
[0021] 収納庫 70には箱体 60の中に農作物を収納する貯蔵室 71が設けられている。また 、収納庫 70は貯蔵室 71の内部にミスト噴霧装置 61を有する。箱体 60は輸送コンテ ナであり、自動車 62に搭載されて輸送に使用される。これ以外に飛行機や船舶など に搭載して輸送してもよい。  The storage 70 is provided with a storage room 71 for storing agricultural products in the box 60. The storage 70 also has a mist spraying device 61 inside the storage chamber 71. The box 60 is a transportation container and is mounted on the automobile 62 and used for transportation. In addition, it may be transported on board an airplane or ship.
[0022] ミスト噴霧装置 61は、貯水タンク 72と給水経路 73と補給部 74とを有する。貯水タン ク 72からは給水経路 73が補給部 74へ水を供給している。補給部 74は貯蔵室 71の 上部天面に設けられている。補給部 74は水を貯留する保持部である貯水槽 75と、 噴霧部 76と、噴霧部 76によって発生したミストを貯蔵室 71内に送風する送風部 77と を有する。  [0022] The mist spraying device 61 includes a water storage tank 72, a water supply path 73, and a replenishment unit 74. From the water storage tank 72, the water supply path 73 supplies water to the supply section 74. The supply part 74 is provided on the upper top surface of the storage room 71. The replenishing unit 74 includes a water storage tank 75 that is a holding unit for storing water, a spraying unit 76, and a blower unit 77 that blows mist generated by the spraying unit 76 into the storage chamber 71.
[0023] 噴霧部 76は貯水槽 75の底部に位置する金属メッシュ 81と金属板 82と、外部に設 けられた超音波素子 80と電源 83とを有する。超音波素子 80は水を超音波方式で霧 化する。金属メッシュ 81は所定粒径以下のミストのみを透過する。また、貯水槽 75内 の貯留水 84は給水経路 73から供給され、貯水槽 75内に貯留されている。また、貯 蔵室 71の一角には、庫内の温度を検知する温度センサ 85が設けられている。  The spray unit 76 includes a metal mesh 81 and a metal plate 82 located at the bottom of the water storage tank 75, an ultrasonic element 80 and a power source 83 provided outside. The ultrasonic element 80 atomizes water by an ultrasonic method. The metal mesh 81 transmits only mist having a predetermined particle size or less. Further, the stored water 84 in the water tank 75 is supplied from the water supply path 73 and stored in the water tank 75. In addition, a temperature sensor 85 that detects the temperature in the storage is provided at one corner of the storage room 71.
[0024] 以上のように構成された収納庫の動作、作用を説明する。まず、貯水タンク 72内に 貯留された水が給水経路 73を経由して、貯水槽 75内に供給され，貯留水 84として 貯留される。次に貯留水 84は超音波素子 80によって霧化される。生じたミストのうち 、所定粒子径以下の微細ミストのみが金属メッシュ 81から噴霧される。このようにして 補給部 74内は所定粒子以下のミストが充満した状態となる。補給部 74内の微細ミス トは送風部 77によって貯蔵室 71内にミストとなって噴霧される。微細ミストは貯蔵室 7 1内の野菜や果物等の農作物の表面に付着し、農作物の表面の微細な凹部にまで 侵入する。残留農薬やワックスなどの有害物質はこの微細ミストの内圧エネルギーに よって浮き上がる。このように、有害物質を浮き上がらせることで、使用者が野菜を水 洗!、した場合に、ミストが付着して 、な 、場合と比較してより容易に有害物質が除去 される。また、ミストが電荷を帯びている場合には、電気的に農作物表面の微細な凹 部にまで進入し、残留農薬やワックスと化学反応する。このため有害物質の親水性が 高まり、ミスト中に取り込まれ分解除去される。また、このようにミストが有害物質と化学 反応を起こさなくても、例えば、有害物質にミストを付着にさせるだけでもよい。これに よりミスト内に有害物質が溶け込んだり、もしくは有害物質内にミストが溶け込んだりし て有害物質が希釈される。結果的に使用者が野菜を水洗いした場合に、ミストが付 着して 、な 、場合と比較してより容易に有害物質が除去される。 The operation and action of the storage configured as described above will be described. First, the water stored in the water storage tank 72 is supplied into the water storage tank 75 via the water supply path 73 and stored as the stored water 84. Next, the stored water 84 is atomized by the ultrasonic element 80. Of the generated mist, only fine mist having a predetermined particle diameter or less is sprayed from the metal mesh 81. In this way, the replenishment section 74 is filled with mist of a predetermined particle or less. The fine mist in the replenishing section 74 is sprayed as mist in the storage chamber 71 by the blower section 77. The fine mist adheres to the surface of crops such as vegetables and fruits in the storage room 71 and penetrates into the fine recesses on the surface of the crops. Hazardous substances such as residual agricultural chemicals and wax are lifted by the internal pressure energy of this fine mist. In this way, by causing the harmful substances to rise, when the user rinses the vegetables with water, the mist adheres and the harmful substances are removed more easily than in the case. In addition, when the mist is charged, it electrically enters the fine recesses on the crop surface and chemically reacts with residual agricultural chemicals and wax. Therefore, the hydrophilicity of harmful substances It is taken up in the mist and decomposed and removed. Further, even if the mist does not cause a chemical reaction with the harmful substance in this way, for example, the mist may only be attached to the harmful substance. As a result, toxic substances are dissolved in the mist, or mist is dissolved in the toxic substances to dilute the toxic substances. As a result, when the user rinses the vegetables with water, the mist adheres and the harmful substances are removed more easily than in the case.
[0025] なおミストとは、細力べ分裂し超微粒子状態となった水のことを示し、その粒子径は 目に見える数 mから目には見えない数 nmのまで含まれ、液体の性質を持っている  [0025] Mist refers to water that has been split into fine particles and formed into an ultrafine particle. Its particle diameter ranges from a visible number of m to a number of invisible nm, and the properties of the liquid. have
[0026] 以上のように、本実施の形態の収納庫 70では、貯蔵室 71内に保存中の農作物に 対し、ミスト噴霧装置 61にて細胞間隙の凹部に入り込むことができる微細ミストを適量 噴霧する。これにより、噴霧したミストが農作物表面の微細な凹部に入り込むことで、 貯蔵室 71の内部に収納された農作物表面に付着した残留農薬等の有害物質が浮 き上がるか、もしくはミストを有害物質に付着させることにより、使用者が野菜を水洗い した場合に、ミストが付着して 、な 、場合と比較してより容易に有害物質が除去され る。また、凹部に残留している有害物質を上記のようなミストの物理的作用に加えて、 ミストと同時に発生するオゾンや OHラジカルを確実に野菜表面に付着させることによ り、物理的作用と化学的作用との相乗効果により、有害物質を除去することが可能と なり、有害物質の除去をより効果的に行うことができる。このように少量の水でも、ミス トとして噴霧することで、有害物質を浮き上がらせる、もしくはミストを有害物質に付着 させ、有害物質の除去が容易になる。 [0026] As described above, in the storage 70 of the present embodiment, an appropriate amount of fine mist that can enter the recesses of the cell gaps with the mist spraying device 61 is sprayed with respect to the agricultural products being stored in the storage chamber 71. To do. As a result, the sprayed mist enters the fine recesses on the surface of the crop, causing harmful substances such as residual pesticides attached to the surface of the crop stored in the storage room 71 to rise, or using the mist as a harmful substance. By adhering, when the user rinses the vegetables with water, mist adheres and the harmful substances are removed more easily than in the case. In addition to the physical action of mist as described above, harmful substances remaining in the recesses, as well as ensuring that ozone and OH radicals generated simultaneously with the mist adhere to the vegetable surface The synergistic effect with the chemical action makes it possible to remove harmful substances, and to remove harmful substances more effectively. By spraying even a small amount of water as a mist in this way, harmful substances can be lifted, or mist can be attached to harmful substances, making it easier to remove them.
[0027] 野菜や果物は収穫後に巿場ゃスーパーマーケット等へ輸送されるが、輸送には長 時間必要である。この時間を利用して貯蔵室 71内に保存されている野菜や果物にミ ストを噴霧する。これによつて、消費者が安心して食生活を送るために、残留農薬の 除去を容易にする為の前処理を行うことができる。  [0027] Vegetables and fruits are transported to a supermarket or the like after harvesting, but transportation requires a long time. Using this time, mist is sprayed on vegetables and fruits stored in the storage room 71. As a result, pre-treatment for facilitating the removal of residual pesticides can be performed so that consumers can live with a safe diet.
[0028] また、貯蔵室 71内には青果物である野菜の中でも緑の菜っ葉ものや果物等も保存 されており、これらの青果物は輸送中の蒸散によってより萎れやすい。し力しながら箱 体 60が輸送に使用される輸送コンテナであることにより、貯蔵室 71に貯蔵された食 品の輸送中の水分蒸散や、栄養成分の低下が防止され、食品は新鮮な状態で輸送 される。さらに、今までは萎れが気にならない状態で到着できる場所までしか輸送す ることができな力つた菜系の野菜でも長時間の輸送が可能となる。 [0028] In addition, among the vegetables that are fruits and vegetables, green vegetable leaves and fruits are also stored in the storage room 71, and these fruits and vegetables are more likely to wither due to transpiration during transportation. However, since the box 60 is a transport container used for transportation, moisture transpiration during transportation of food stored in the storage room 71 and reduction of nutrients are prevented, and the food is in a fresh state. Transported by Is done. In addition, even vegetarian vegetables that can only be transported to places where they can arrive without worrying about wilting can be transported for a long time.
[0029] また、以上の説明では、水道水を噴霧することを前提として説明しているが、これに 限定されない。噴霧する液体として、オゾン水や酸性水あるいはアルカリ水などの機 能水を噴霧すれば、野菜や果物表面の微細な孔に機能水ミストが入り込む。そのた め、微細な孔の内部の汚れや農薬等の有害物質を浮き上がらせる除去効果や有害 物質の酸化分解効果や酸'アルカリ分解効果が高まる。  [0029] In the above description, it is assumed that tap water is sprayed. However, the present invention is not limited to this. If functional water such as ozone water, acidic water, or alkaline water is sprayed as the liquid to be sprayed, functional water mist enters fine holes on the surface of vegetables and fruits. For this reason, the removal effect that raises dirt inside the fine pores and harmful substances such as agricultural chemicals, the oxidative decomposition effect of harmful substances, and the acid 'alkali decomposition effect are enhanced.
[0030] さらに、貯蔵室 71内に付着する汚れや貯蔵室 71庫内の臭気の除去、酸 'アルカリ 分解効果も高まる。特にこのように、振動エネルギーによってミストを生成するタイプ の噴霧部 76は、高周波数の振動エネルギーを用いて水滴を細粒ィ匕する。すなわち、 振動エネルギーによってミストを生成するタイプの霧化装置は、水粒子に電気分解等 の分解を行わないので、水の成分を変えずにミストイ匕できる場合がある。このように、 振動エネルギーの与え方によって水の成分をそのままミストイ匕するような装置にした 場合には、例えばアルカリイオン水やマイナスイオン水等の純粋な水と比較してなん らかの成分を付加した機能水を用いても、その成分をそのままミストイ匕することが可能 となり、使用者のニーズに応じた任意の水をミストとして供給することができる。  [0030] Further, the dirt adhering in the storage chamber 71 and the odor in the storage chamber 71 are removed, and the acid and alkali decomposition effect is also enhanced. In particular, in this way, the spray unit 76 of the type that generates mist by vibration energy finely divides water droplets using vibration energy of high frequency. That is, an atomizer that generates mist by vibration energy does not decompose water particles by electrolysis or the like, so that there are cases where misting can occur without changing water components. In this way, when the device is configured to mistoy the water component as it is depending on how vibrational energy is applied, for example, some component is compared with pure water such as alkaline ion water or negative ion water. Even if the added functional water is used, it becomes possible to misto the components as they are, and any water that meets the needs of the user can be supplied as a mist.
[0031] なお、貯蔵室 71を冷却する冷却装置を設ければ、温度帯を調節することが可能と なり、温度センサ 85によって、予め設定していた温度よりも高い温度を検知したときに 、冷却装置を運転させれば、夏場などの高温時は冷蔵温度帯で農作物の鮮度を保 つことができる。 [0031] If a cooling device for cooling the storage chamber 71 is provided, the temperature zone can be adjusted. When the temperature sensor 85 detects a temperature higher than a preset temperature, If the cooling device is operated, the freshness of the crops can be maintained in the refrigerated temperature zone at high temperatures such as in summer.
[0032] また、貯蔵室 71が湿度 90%以上の高湿になると、食品の中でも特に野菜類は蒸 散が抑えられる為、貯蔵室 71に貯蔵されている食品の劣化スピードが遅くなる。その ため、ミストによる水分補給効率が向上する。このような効果を得るために湿度センサ を貯蔵室 71内にそなえることで、より貯蔵室 71内の空質の変化に応じて噴霧部 76を 駆動させることで、よりミストによる水分補給効率を向上させることができる。また、前 述のように振動エネルギーによってミストを生成するタイプの噴霧部 76は、高周波数 の振動エネルギーを用いて水滴を細粒ィ匕する。そのため、微細ミストの生成時に高 電圧を必要とせず、低電圧で微細ミストを得ることができる。これは、特に輸送コンテ ナ等で輸送車のエンジンにガソリン等の可燃性物質を用いる場合に有効である。す なわち、可燃性物質が万が一貯蔵室 71内に漏洩した場合でも、噴霧部 76が高電圧 を発生しないので爆発等の危険性が低ぐミスト発生に伴う安全性がより高まる。 [0032] If the humidity in the storage room 71 becomes 90% or higher, the vegetation of the vegetables, in particular, can be prevented from evaporating, and the deterioration rate of the food stored in the storage room 71 becomes slow. This improves the efficiency of hydration by mist. In order to obtain such an effect, the humidity sensor is provided in the storage chamber 71, and the spraying section 76 is driven according to the change in the air quality in the storage chamber 71, thereby improving the hydration efficiency by mist. Can be made. Further, as described above, the spray unit 76 of the type that generates mist by vibration energy finely divides water droplets using vibration energy of high frequency. Therefore, a high voltage is not required when generating the fine mist, and the fine mist can be obtained at a low voltage. This is especially true for transportation containers. This is effective when a combustible material such as gasoline is used for the engine of a transport vehicle. In other words, even if a flammable substance leaks into the storage chamber 71, the spray section 76 does not generate a high voltage, so the danger of an explosion or the like is low and the safety associated with the generation of mist is further increased.
[0033] なお、本実施の形態では、噴霧部 76に超音波素子 80に金属メッシュ 81を用いて V、ることでミストの粒子径を調整して 、るが、金属メッシュ 81に対向する金属板 82を 設け、電源 83によって金属メッシュ 81と金属板 82との間に高電圧を印加することで、 ミストの粒子径をより細粒ィ匕することで、ミストの粒子径を調整することも可能である。こ の場合には、ミストの細粒ィ匕と共にミスト粒子には静電付加することも可能である。こ れにより、マイナスの電荷を付加された微細ミストが、プラスに帯電した庫内壁面や野 菜、果物表面等に付着し、庫内壁面や野菜や果物表面の微細な孔にミストが入り込 む。そのため、野菜の表面に付着した有害物質を浮き上がらせ除去する効果を高め ることちでさる。  [0033] In the present embodiment, the particle diameter of the mist is adjusted by V using the metal mesh 81 for the ultrasonic element 80 in the spray unit 76, but the metal facing the metal mesh 81 is used. By providing a plate 82 and applying a high voltage between the metal mesh 81 and the metal plate 82 by the power supply 83, the particle size of the mist can be adjusted by making the particle size of the mist finer. Is possible. In this case, it is possible to electrostatically add to the mist particles together with the fine particles of the mist. As a result, the fine mist added with negative charges adheres to the positively charged interior walls, vegetables, fruit surfaces, etc., and the mist enters the interior walls and the fine holes on the vegetables and fruits surfaces. Mu Therefore, it is easier to lift and remove the harmful substances attached to the vegetable surface.
[0034] (実施の形態 2)  [Embodiment 2]
本発明による収納庫では、箱体として収穫後の農作物の保管に使用される保管コ ンテナを用いる。これにより貯蔵室に貯蔵された食品を出荷する前に有害物質を除 去または浮き上がらせることができる。また保管中の時間を利用して有害物質を除去 または浮き上がらせることができる。  In the storage according to the present invention, a storage container used for storing crops after harvesting is used as a box. This allows harmful substances to be removed or lifted before shipping the food stored in the storage room. It is also possible to remove or lift harmful substances using the storage time.
[0035] 図 4は本発明の実施の形態 2における収納庫の側断面図である。本実施の形態に おける収納庫 90は、箱体 63とミスト噴霧装置 61とを有する。箱体 63は保管コンテナ であり、収穫後の農作物の保管に使用される。これ以外の構成は実施の形態 1と同 様である。  FIG. 4 is a side cross-sectional view of the storage case according to Embodiment 2 of the present invention. The storage 90 in the present embodiment has a box 63 and a mist spraying device 61. Box 63 is a storage container and is used to store crops after harvesting. The other configuration is the same as that of the first embodiment.
[0036] 箱体 63は、貯蔵室 71内に保存されている野菜や果物等の農作物の収穫後の食品 の保管に使用される。このような箱体 63内の貯蔵室 71にミスト噴霧装置 61を設ける ことにより、貯蔵室 71に貯蔵されている間の時間を利用して貯蔵室 71内に保存され ている農作物にミストが噴霧される。これにより、消費者が安心して食生活を送るため に、残留農薬の除去を容易にする為の前処理を行うことが可能となる。これによつて、 例えば店頭で販売する前の保管状態で農薬の除去が可能となり、消費者に対して、 より安全性の高い野菜を提供することができる。 [0037] 霧化するための好ま 、液体、ミストへの帯電効果、温度調節機能を付与すること による効果等は実施の形態 1と同様である。 [0036] The box 63 is used for storing food after harvesting crops such as vegetables and fruits stored in the storage room 71. By providing the mist spraying device 61 in the storage chamber 71 in such a box 63, the mist is sprayed on the crops stored in the storage chamber 71 using the time during the storage in the storage chamber 71. Is done. This makes it possible to perform pre-treatment to facilitate the removal of residual pesticides so that consumers can live with peace of mind. This makes it possible to remove the agricultural chemicals in a storage state before being sold at a store, for example, and to provide a safer vegetable for consumers. [0037] Preference for atomization, the effect of charging liquid, mist, the effect of imparting a temperature adjustment function, and the like are the same as in the first embodiment.
[0038] 次に、実施の形態 3から実施の形態 10と共に、本発明の収納庫を冷蔵庫に適用し た例について説明する。  Next, an example in which the storage of the present invention is applied to a refrigerator together with Embodiments 3 to 10 will be described.
[0039] 本発明の収納庫は、箱体とミスト噴霧装置とを有する。箱体は農作物を収納する貯 蔵室を有する。ミスト噴霧装置は貯蔵室内に液体を噴霧する噴霧部を有する。ミスト 噴霧装置は、発生させたミストによって、農作物表面に付着した残留農薬等の有害 物質を浮き上がらせる。もしくはミストを残留農薬等の有害物質に付着させる。これに より、噴霧されたミストが農作物表面の微細な凹部に入り込み、凹部に残留している 農薬の有害物質をミストの物理的作用、化学的作用の相乗効果により、除去する。そ のため少量の水で農薬等有害物質が浮き上がる、もしくはミストが残留農薬等の有害 物質に付着する。そのため有害物質の除去が容易となる。  [0039] The storage of the present invention includes a box and a mist spraying device. The box has a storage room for storing crops. The mist spraying device has a spraying section for spraying liquid into the storage chamber. The mist spraying device lifts up harmful substances such as residual agricultural chemicals attached to the crop surface by the generated mist. Or attach mist to harmful substances such as residual agricultural chemicals. As a result, the sprayed mist enters the fine recesses on the surface of the crop, and the harmful substances of the pesticide remaining in the recesses are removed by the synergistic effect of the physical and chemical action of the mist. Therefore, harmful substances such as pesticides can be lifted with a small amount of water, or mist adheres to harmful substances such as residual agricultural chemicals. Therefore, it is easy to remove harmful substances.
[0040] また本発明の収納庫の箱体には、液体を保持する保持部である貯水槽が設けられ ている。これにより一定量の貯留水を予め貯めておくことができるのでミスト噴霧装置 に任意のタイミングで水を補給することが可能となる。これによつて、貯蔵室内の内部 に収納された農作物に安定してミストを噴霧することができる。  [0040] Further, the storage box of the present invention is provided with a water storage tank as a holding unit for holding the liquid. As a result, a certain amount of stored water can be stored in advance, so that the mist spraying device can be replenished with water at an arbitrary timing. This makes it possible to spray mist stably on the crops stored in the storage room.
[0041] また本発明の収納庫のミスト噴霧装置は、供給部である貯水タンクを有する。使用 者が外部力 貯水タンク内に給水することで、貯留水が保持される。これによつて使 用者が常に新鮮な水を補給できるとともに、一定量の貯留水を予め貯めておくことが できる。そのため貯蔵室内の内部に収納された食品が多数の場合でも十分な量の水 分補給を行うことができる。  [0041] Further, the mist spraying device of the storage of the present invention has a water storage tank as a supply unit. The water is retained by the user supplying water into the external-powered storage tank. This allows the user to always replenish fresh water and to store a certain amount of stored water in advance. Therefore, even when there are many foods stored in the storage room, a sufficient amount of water can be replenished.
[0042] また本発明の収納庫の保持部は、貯蔵室内の空気内に含まれている水分力 抽 出された水を保持する。このようにして保持された貯留水が、保水装置内に保持され る。これによつて使用者が外部から水を補給しなくても貯蔵室内の内部に収納された 食品に水分補給を行うことができるので、メンテナンスに手間がかからない。  [0042] In addition, the holding unit of the storage of the present invention holds the water extracted from the moisture power contained in the air in the storage chamber. The stored water retained in this way is retained in the water retention device. As a result, the user can replenish the food stored in the storage chamber without replenishing water from the outside, so that maintenance is not time-consuming.
[0043] また本発明の収納庫のミスト噴霧部はミストが放出される部分である噴霧先端部を 有し、少なくとも噴霧先端部は貯蔵室内に設けられている。そのため農作物が収納さ れている貯蔵室に対して直接的にミスト粒子を噴霧することができる。また噴霧先端 部と農作物との距離をより縮めることができる。そのため例えば貯蔵室外でミストを噴 霧して力も貯蔵室内へ送り込む場合と比較して、ミスト粒子の気化が防止できる。また 、浮遊状態におけるミストの流速を高めることができ、農作物表面へのミストの付着率 をより高めることができる。 [0043] Further, the mist spraying part of the storage of the present invention has a spraying tip part which is a part from which mist is discharged, and at least the spraying tip part is provided in the storage chamber. Therefore, mist particles can be sprayed directly to the storage room where the crops are stored. Also spray tip The distance between the department and the crop can be further reduced. Therefore, for example, the mist particles can be prevented from being vaporized as compared with the case where the mist is sprayed outside the storage chamber and the force is also fed into the storage chamber. In addition, the flow rate of mist in the floating state can be increased, and the adhesion rate of mist to the crop surface can be further increased.
[0044] また本発明の収納庫のミスト噴霧装置における供給部は噴霧部が備えられて!/、る 区画とは別の区画に設けられている。すなわち、供給部は噴霧部の配置位置に影響 されず、貯水槽内への水の補給や貯水槽内の清掃が容易となるような任意の位置に 設けることができる。そのため使用者の使い勝手が向上する。  [0044] Further, the supply section in the mist spraying device of the storage of the present invention is provided with a spray section and is provided in a section different from the section! In other words, the supply unit can be provided at any position that is not affected by the position of the spray unit and that facilitates replenishment of water into the water storage tank and cleaning of the water storage tank. As a result, the user convenience is improved.
[0045] また本発明における噴霧部は粒子径 0. 003 m〜20 mのミストを発生すること により、農作物表面の微細な凹部に効率よくミストが侵入する。そのため細部にわた るまで農薬等有害物質を浮き上がらせることができる。 [0045] Further, the spray part in the present invention generates a mist having a particle size of 0.003 m to 20 m, so that the mist efficiently invades the fine recesses on the surface of the crop. Therefore, harmful substances such as agricultural chemicals can be lifted up to the details.
[0046] また本発明における噴霧部のミスト噴霧量は 0. 0007-0. 14g/h'Uこすることに より、農薬等有害物質を浮き上がらせるのに必要量が噴霧される。これにより、農薬 等有害物質の除去効果と保存性とが両立する。 [0046] Further, the amount of mist sprayed in the spray section in the present invention is 0.0007-0.14 g / h'U, so that an amount necessary to lift harmful substances such as agricultural chemicals is sprayed. As a result, both the effect of removing harmful substances such as agricultural chemicals and storage stability are achieved.
[0047] また本発明におけるミスト噴霧装置にて発生したミストは酸ィ匕分解性ミストとすること により、ミストに酸化分解力を持たせ、農薬等有害物質を酸化分解して親水性を高め る。そのため、農薬等有害物質の浮き上がらせる効果が向上する。  [0047] The mist generated in the mist spraying apparatus of the present invention is an acid-decomposable mist, so that the mist has an oxidative degradation power and oxidatively decomposes harmful substances such as agricultural chemicals to increase hydrophilicity. . Therefore, the effect of raising harmful substances such as agricultural chemicals is improved.
[0048] また本発明におけるミスト噴霧装置にて発生したミストはオゾンミストとすることにより[0048] The mist generated in the mist spraying apparatus of the present invention is ozone mist.
、農薬等有害物質を強力に酸化分解することとなり、有害物質を分解にて安全な物 質に変えることができる。 As a result, harmful substances such as agricultural chemicals are strongly oxidized and decomposed, and the harmful substances can be converted into safe substances by decomposition.
[0049] また本発明におけるミスト噴霧装置にて発生したミストはアルカリ分解性ミストとする ことにより、ミストにアルカリ分解性を持たせることにより、農薬等有害物質をアルカリ 分解し、安全な物質に変えることができる。 [0049] In addition, the mist generated in the mist spraying apparatus of the present invention is made into an alkali-decomposable mist, so that the mist has an alkali-decomposable property, so that harmful substances such as agricultural chemicals are alkali-degraded and converted into safe substances. be able to.
[0050] また本発明におけるミスト噴霧装置にて発生したミストはラジカルを含むミストとする ことにより、ラジカルの強力な酸ィ匕分解力により、農薬等有害物質を分解し、安全な 物質に変えることができる。 [0050] In addition, the mist generated by the mist spraying apparatus in the present invention is a mist containing radicals, which decomposes harmful substances such as agricultural chemicals and converts them into safe substances by the strong acid-oxidizing ability of radicals. Can do.
[0051] また本発明における噴霧部は静電霧化方式によってミストを生成する。この方式で は高電圧等の電気エネルギーを使って水滴を分裂させ、細分化することによって微 細ミストを発生させるので、発生ミストは電荷を帯びている。そのため、その電荷の持 つプラスとマイナスの吸着力によってミストが農作物に付着し、より均一に野菜表面に ミストが付着する。また電荷を帯びて!/、な!、タイプのミストと比較してミストの付着率が より向上する。結果として、農薬の除去をより効果的に行うことが可能となる。 [0051] Further, the spray section in the present invention generates mist by an electrostatic atomization method. In this method, high-voltage electrical energy is used to break up and subdivide the water droplets. Since the fine mist is generated, the generated mist is charged. For this reason, the mist adheres to the crops due to the positive and negative adsorptive power of the charge, and the mist adheres more uniformly to the vegetable surface. In addition, the mist adherence rate is further improved compared to the charged mist! / ,! As a result, it becomes possible to remove the agricultural chemicals more effectively.
[0052] また本発明における静電霧化方式の噴霧部のミスト噴霧量は 0. 0007〜0. 007g/ h'Lとすること力 子ましい。静電霧化方式の噴霧部により発生したミストは電荷を帯び 、農作物へのミストの付着率が高い。そのため、電荷を帯びていないタイプのミストを 噴霧する場合と比較して、同等の付着率が得られ、農薬の除去をより効果的に行うこ とが可能となる。  [0052] In addition, the mist spray amount of the spray portion of the electrostatic atomization method in the present invention is preferably set to 0.0007 to 0.007 g / h'L. The mist generated by the spraying part of the electrostatic atomization system is charged and the mist adheres to the crops at a high rate. Therefore, compared with the case of spraying a mist of an uncharged type, the same adhesion rate can be obtained, and the removal of agricultural chemicals can be performed more effectively.
[0053] また本発明における噴霧部は粒子径 0. 003-0. 5 μ mのミストを発生する。静電 霧化方式の噴霧部を用いると、ミストの粒子径が大きくなるにつれて帯電している電 荷エネルギーが弱くなる。し力し上記粒子径の範囲内で静電霧化方式を用いること で、野菜への付着率を高めるのに十分な電荷を帯びたミストを発生することができ、 静電霧化方式による農薬の除去をより効果的に行うことが可能となる。  [0053] Further, the spray portion in the present invention generates mist having a particle size of 0.003-0. When an electrostatic atomization spray unit is used, the charged energy of the mist becomes weaker as the particle diameter of the mist increases. By using an electrostatic atomization method within the above particle size range, it is possible to generate mist with a sufficient charge to increase the adhesion rate to vegetables. Can be more effectively removed.
[0054] また本発明においては、超音波霧化方式の噴霧部を用いることができる。このよう な噴霧部によってミストを生成する場合、高周波数の振動エネルギーを用いて水滴 を細粒ィ匕する。そのため、微細ミストの生成時に高電圧を必要とせず、低電圧で微細 ミストを得ることが可能となる。結果としてミスト発生に伴う安全性をより高めることがで きるとともに省エネルギー化を図ることが可能となる。  [0054] Further, in the present invention, an ultrasonic atomizing spray unit can be used. When mist is generated by such a spraying section, water droplets are finely divided using high-frequency vibration energy. Therefore, it is possible to obtain a fine mist with a low voltage without requiring a high voltage when producing the fine mist. As a result, the safety associated with the generation of mist can be further enhanced and energy saving can be achieved.
[0055] また本発明における超音波霧化方式の噴霧部のミスト噴霧量は 0. 014-0. 14g Zh'Lとすることが好ましい。超音波霧化方式の噴霧部を用いた場合、高周波数の 振動エネルギーを用いて水滴を細粒ィ匕するので、噴霧量が小さくなるに従って、発 生する振動エネルギーが小さくなり、噴霧されるミストに与えられる運動エネルギーが 小さくなる。そのため、ミストの飛距離が小さくなる傾向がある。し力しながら、上記噴 霧量の範囲内で超音波霧化方式を用いることで、庫内への拡散性を備え、野菜表面 まで到達する飛距離を有するミストを発生することができ、超音波霧化方式による農 薬の除去をより効果的に行うことが可能となる。  [0055] The amount of mist sprayed in the spray section of the ultrasonic atomization method in the present invention is preferably set to 0.014-0.14g Zh'L. When an ultrasonic atomizing spray unit is used, water droplets are finely dispersed using high-frequency vibration energy, so as the spray amount decreases, the generated vibration energy decreases and the mist sprayed. The kinetic energy given to becomes smaller. For this reason, the flying distance of mist tends to be small. However, by using the ultrasonic atomization method within the range of the amount of mist, it is possible to generate mist that has diffusibility into the warehouse and has a flight distance that reaches the vegetable surface. It becomes possible to remove agricultural chemicals more effectively by the sonic atomization method.
[0056] また本発明における超音波霧化方式の噴霧部のミスト粒子径は 0. 5〜20 μ mとす ることが好ましい。超音波霧化方式の噴霧部を用いた場合には、ミストの粒子径を小 さくするに従って、高周波数の振動エネルギーを用いて水滴を細粒ィ匕する必要があ る。そのため高周波数になればなるほど、振動回数が多くなり超音波霧化方式の耐 久年数が短くなる傾向がある。し力しながら上記粒子径の範囲内で超音波霧化方式 を用いることで、平均使用年数が 10年程度といった家電製品の中でも特に長期間の 耐久性を要求される冷蔵庫においても、十分な耐久性が得られる。そのため超音波 霧化方式による農薬の除去の信頼性をより高めることが可能となる。 [0056] Further, the mist particle diameter of the spray portion of the ultrasonic atomization method in the present invention is set to 0.5 to 20 μm. It is preferable. In the case of using an ultrasonic atomization spray section, it is necessary to finely drop water droplets using vibration energy at a high frequency as the particle diameter of the mist is reduced. For this reason, the higher the frequency, the greater the number of vibrations and the shorter the lifetime of the ultrasonic atomization method. However, by using the ultrasonic atomization method within the above particle size range, sufficient durability is ensured even in refrigerators that require long-term durability, especially among household appliances with an average service life of about 10 years. Sex is obtained. Therefore, it becomes possible to further improve the reliability of removing agricultural chemicals by the ultrasonic atomization method.
[0057] (実施の形態 3)  [Embodiment 3]
図 5は本発明の実施の形態 3における冷蔵庫の側断面図である。  FIG. 5 is a side sectional view of the refrigerator according to Embodiment 3 of the present invention.
[0058] 図 6、図 7はそれぞれ、図 5に示す冷蔵庫におけるミスト噴霧装置の側断面図と A— A線断面図である。 FIGS. 6 and 7 are a side sectional view and a sectional view taken along line AA of the mist spraying device in the refrigerator shown in FIG. 5, respectively.
[0059] この冷蔵庫では、断熱箱体 110が仕切り板 111によって、上から冷蔵室 112、切替 室 113、野菜室 114、冷凍室 115に仕切られている。冷凍室 115の奥には蒸発器 10 2が設けられている。蒸発器 102は機械室 103に設けられた圧縮機 104、冷蔵庫の 下部に設けられた凝縮器 105、図示しない膨張弁とともにパイプで接続されており、 これらは内部に封入された冷媒を圧縮、蒸発させることで冷蔵庫内を冷却する冷却 装置を構成している。冷蔵室 112内、野菜室 114内は蒸発器 102で生成された冷気 が風路 229を介して各貯蔵室に搬送されることで冷却されて 、る。切替室 113内は、 図示しない送風経路を介して蒸発器 102により冷却されることで冷凍温度に保たれる 力 冷蔵温度に保たれるかを切り替えて使用できる。野菜室 114の背面には、風路 2 29と野菜室 114を区画するための仕切板 111Aが配置されて 、る。仕切板 111Aと 本体外壁 202との間には風路 229が設けられている。風路 229は例えば蒸発器 102 で生成された冷気を各貯蔵室に搬送する、もしくは各貯蔵室から熱交換された空気 を蒸発器 102へ搬送する。すなわち、箱体である断熱箱体 110の内部には農作物を 貯蔵する貯蔵室である野菜室 114が設けられている。冷却装置は野菜室 114内部を 冷却する。  In this refrigerator, the heat insulating box 110 is partitioned from above by the partition plate 111 into a refrigerator compartment 112, a switching compartment 113, a vegetable compartment 114, and a freezer compartment 115. An evaporator 102 is provided at the back of the freezer compartment 115. The evaporator 102 is connected with a compressor 104 provided in the machine room 103, a condenser 105 provided in the lower part of the refrigerator, and an expansion valve (not shown) through a pipe, which compresses and evaporates the refrigerant sealed inside. This constitutes a cooling device that cools the inside of the refrigerator. In the refrigerator compartment 112 and the vegetable compartment 114, the cold air generated in the evaporator 102 is cooled by being conveyed to each storage room via the air passage 229. The inside of the switching chamber 113 can be used by switching whether it is kept at the refrigeration temperature by being cooled by the evaporator 102 through a ventilation path (not shown). On the back of the vegetable compartment 114, a partition plate 111A for separating the air passage 229 and the vegetable compartment 114 is disposed. An air passage 229 is provided between the partition plate 111A and the main body outer wall 202. The air path 229 conveys, for example, the cold air generated in the evaporator 102 to each storage chamber, or conveys the heat exchanged air from each storage chamber to the evaporator 102. That is, a vegetable room 114 which is a storage room for storing agricultural products is provided inside the heat insulation box 110 which is a box. The cooling device cools the inside of the vegetable compartment 114.
[0060] 野菜室 114は断熱壁 116により構成されており、野菜室 114内は約 90%RH以上（ 食品収納時)の湿度に保たれ、 4〜6°Cに冷却されている。野菜室 114の上部天面に はミスト噴霧装置 120が設けられている。 [0060] The vegetable compartment 114 is constituted by a heat insulating wall 116, and the inside of the vegetable compartment 114 is kept at a humidity of about 90% RH or more (when food is stored) and cooled to 4 to 6 ° C. On top of vegetable room 114 A mist spraying device 120 is provided.
[0061] ミスト噴霧装置 120は、貯留水 124を貯留する貯水槽 122と、噴霧部 123と、噴霧 部 123が発生したミストを野菜室 114内に送風する送風部 129とを有する。噴霧部 1 23は貯水槽 122の内部に位置して 、る。噴霧部 123は毛細管供給構造体 133と第 1電極である陰極 134と第 2電極である陽極 135と電源 128とを有する。毛細管供給 構造体 133の一端は貯留水 124に浸漬され、他端は貯水槽 122内で噴霧先端部 1 32を形成している。すなわち噴霧先端部 132は野菜室 114内に設けられている。陰 極 134、陽極 135は貯水槽 122の一画に設置されている。陰極 134は貯留水 124に 負の高電圧を印加する。陽極 135は陰極 134に対向している。電源 128は陰極 134 と陽極 135との間に高電圧を印加する。  [0061] The mist spraying device 120 includes a water storage tank 122 that stores the stored water 124, a spraying unit 123, and a blowing unit 129 that blows the mist generated by the spraying unit 123 into the vegetable compartment 114. The spraying section 123 is located inside the water tank 122. The spray unit 123 includes a capillary supply structure 133, a cathode 134 as a first electrode, an anode 135 as a second electrode, and a power source 128. One end of the capillary supply structure 133 is immersed in the stored water 124, and the other end forms a spray tip portion 132 in the water storage tank 122. That is, the spray tip 132 is provided in the vegetable compartment 114. The negative electrode 134 and the positive electrode 135 are installed in a section of the water storage tank 122. The cathode 134 applies a negative high voltage to the stored water 124. The anode 135 faces the cathode 134. The power supply 128 applies a high voltage between the cathode 134 and the anode 135.
[0062] 以上のように構成されたミスト噴霧装置 120について、以下その動作、作用を説明 する。まず、貯水槽 122内に除霜水が貯留され、貯留水 124となる。すなわち、貯水 槽 122は野菜室 114内の空気内に含まれて 、る水分を抽出して保持する保持部で ある。  [0062] The operation and action of the mist spraying device 120 configured as described above will be described below. First, defrost water is stored in the water storage tank 122 to become the stored water 124. That is, the water storage tank 122 is a holding unit that extracts and holds the moisture contained in the air in the vegetable compartment 114.
[0063] 次に電源 128が陰極 134と陽極 135との間に高電圧を印加する。すると、噴霧先端 部 132と陽極 135との間に存在する電界によって噴霧先端部 132から複数の液糸が 引き出される。この液糸はさらには帯電した液滴に分散されて 0. 1 m以下の微細ミ ストとなる。また、静電霧化の際、放電が行われるため、ミスト発生時には同時に微量 のオゾンとラジカルが発生する。このオゾンはミストと即座に混合して、低濃度のォゾ ンミストを生じる。なお、ラジカルとは不対電子を有する酸ィ匕力が強い分子のことであ る。  Next, the power supply 128 applies a high voltage between the cathode 134 and the anode 135. Then, a plurality of liquid yarns are drawn from the spray tip 132 by the electric field that exists between the spray tip 132 and the anode 135. This liquid yarn is further dispersed into charged droplets, resulting in a fine mist of 0.1 m or less. In addition, since discharge occurs during electrostatic atomization, trace amounts of ozone and radicals are generated at the same time when mist is generated. This ozone mixes immediately with the mist to produce a low concentration of ozone mist. A radical is a molecule having an unpaired electron and strong acidity.
[0064] このオゾンミストは送風部 129によって、野菜室 114内に噴霧される。噴霧されたォ ゾンミストは静電付加されているため、野菜室 114内でプラスに帯電する野菜や果物 等の農作物の表面および庫内壁面に電気的に付着する。そして、農作物の表面の 微細な凹部にまで侵入する。残留農薬やワックスなどの有害物質は、ミストの内圧ェ ネルギ一によつて浮き上がる。これによつて、結果的に使用者が農作物を水洗いした 場合に、ミストが付着していない場合と比較してより容易に農薬が除去される。さらに オゾンの酸化分解作用によって、有害物質は酸化分解除去される。あるいは電気的 に微細な凹部に侵入したミストは有害物質と化学反応する。これにより有害物質の親 水性が高まり、ミスト中に取り込まれ分解される。 This ozone mist is sprayed into the vegetable compartment 114 by the blower 129. Since the sprayed ozone mist is electrostatically added, it adheres electrically to the surface of agricultural products such as vegetables and fruits that are positively charged in the vegetable compartment 114 and to the inner wall surface. It then penetrates into the fine recesses on the surface of the crop. Hazardous substances such as residual agricultural chemicals and wax are lifted by the internal pressure energy of the mist. As a result, when the user washed the crops with water, the pesticides are more easily removed than when the mist is not attached. Furthermore, harmful substances are oxidatively decomposed and removed by the oxidative degradation of ozone. Or electrical The mist that has entered the fine recesses chemically reacts with harmful substances. This increases the hydrophilicity of harmful substances, which are taken up and decomposed in the mist.
[0065] また、このように有害物質と化学反応を起こさなくても、例えば有害物質にミストを付 着させるだけで、ミスト内に有害物質が溶け込む。もしくは有害物質内にミストが溶け 込んで有害物質が希釈されることで、結果的に使用者が農作物を水洗いした場合に 、ミストが付着して 、な 、場合と比較してより容易に農薬が除去される。  [0065] Further, even if the chemical reaction with the harmful substance does not occur as described above, the harmful substance dissolves in the mist only by attaching the mist to the harmful substance, for example. Or, the mist dissolves in the hazardous substance and the harmful substance is diluted, so that when the user wash the crop with water, the mist adheres more easily than in the case. Removed.
[0066] このように、ミスト噴霧装置 120は電気エネルギーを使って水滴を分裂させ、細分化 することによって微細ミストを発生させる。このようにミスト噴霧装置 120には静電霧化 方式が用いられている。そのため、発生するミストは電荷を帯びており、その電荷の 持つプラスとマイナスの吸着力によって農作物に付着する。そのため、農作物表面に ミストが均一に付着する。また、電荷を帯びていないミストと比較して農作物への付着 率が向上する。そのため、農薬等の有害物質は効果的に除去される。  [0066] In this way, the mist spraying device 120 generates fine mist by breaking up and subdividing water droplets using electric energy. Thus, the mist spraying device 120 uses an electrostatic atomization method. Therefore, the generated mist is charged, and attaches to the crops by the positive and negative adsorption power of the charge. Therefore, mist adheres uniformly to the crop surface. In addition, the adhesion rate to crops is improved compared to mist that is not charged. Therefore, harmful substances such as agricultural chemicals are effectively removed.
[0067] また、ミストに静電付加することにより、ミスト中の水分子がラジカル化し、 OHラジカ ルが生じる。そのため、オゾンの酸ィ匕力にカ卩え、 OHラジカルの酸ィ匕力が有害物質の 分解性能を高める。  [0067] Further, by electrostatically adding to the mist, water molecules in the mist are radicalized to generate OH radicals. Therefore, in addition to the acidity of ozone, the acidity of OH radicals enhances the ability to decompose harmful substances.
[0068] なおミストは断熱壁 116の微細な孔に侵入し、同様に孔内部の汚れや有害物質を 浮き上がらせ、オゾン酸化分解によって分解除去する。  [0068] Mist penetrates into fine holes in the heat insulating wall 116, and similarly, dirt and harmful substances inside the holes are lifted and decomposed and removed by ozone oxidation decomposition.
[0069] 図 8は図 6に示すミスト噴霧装置 120の農薬除去性能を従来の浸漬仕様、及び水 洗いと比較した図である。この実験にはマラチオンを約 3ppm付着させたミニトマト 10 個ずつを用い、各仕様で除去処理する。そして処理後の残留マラチオン濃度をガス クロマトグラフィ (GC)にて測定することで、除去率を算出する。  FIG. 8 is a diagram comparing the pesticide removal performance of the mist spraying device 120 shown in FIG. 6 with conventional immersion specifications and washing with water. In this experiment, 10 cherry tomatoes with about 3 ppm of malathion were used and removed according to each specification. The removal rate is calculated by measuring the residual malathion concentration after treatment by gas chromatography (GC).
[0070] 次に各除去処理仕様を説明する。処理 Aでは、上述のミニトマト 10個を笊に入れ約 10秒間流水で洗浄する。処理 Bでは、一般的な食物洗浄装置を用いた処理に相当 するもので、 lppmのオゾンを含む 2Lの水にミニトマト 10個を 1時間浸漬させ、オゾン によって気泡洗浄する。処理 Cでは、ミニトマト 10個にミスト噴霧装置 120で 12時間ミ スト噴霧処理する。処理 Dでは、ミニトマト 10個を 12時間ミスト噴霧処理後に笊に入 れ約 10秒間流水で洗浄する。なお、処理 C、処理 Dでの庫内オゾンガス濃度は約 0 . 03ppmである。また、処理 C、処理 Dにおけるミストの粒子径は 0. 003 μ m,噴霧 量は 0. 0007g/h'Lである。 Next, each removal processing specification will be described. In treatment A, place the above 10 cherry tomatoes in a bowl and wash with running water for about 10 seconds. Process B is equivalent to a process using a general food cleaning device. 10 cherry tomatoes are immersed in 2 L of water containing 1 ppm of ozone for 1 hour, and bubbles are cleaned with ozone. In the treatment C, 10 cherry tomatoes are subjected to mist spray treatment for 12 hours using a mist spraying device 120. In treatment D, 10 cherry tomatoes are sprayed with mist for 12 hours, then placed in a basket and washed with running water for about 10 seconds. Note that the ozone gas concentration in Process C and Process D is about 0.03 ppm. In addition, the particle size of mist in treatment C and treatment D is 0.003 μm. The amount is 0.0007 g / h'L.
[0071] 図 8に示すように、処理 Aでの除去率は 20%であり、通常家庭での水洗い程度で は残留農薬の 80%が除去されず、人体に摂取されることがわかる。また処理 Bでは、 残留農薬の 55%が除去されている。 [0071] As shown in FIG. 8, the removal rate in the treatment A is 20%, and it can be seen that 80% of the residual agricultural chemicals are not removed by ordinary water washing, and are taken into the human body. Treatment B also removes 55% of the pesticide residue.
[0072] これに対し、処理 Cの除去率は 50%であり、処理 Bとほぼ同等の農薬除去性能が 示されている。さらに、処理 Dの除去率は 70%である。これは、超微細ミストの物理的 作用によって、付着農薬が浮きあがり、はがれ落ちやすくなつたものと考えられる。以 上の結果から、本実施の形態におけるミスト噴霧装置 120を有する冷蔵庫は、食物 洗浄の専用機とほぼ同等の農薬除去性能を有する。 [0072] On the other hand, the removal rate of treatment C was 50%, indicating that the removal efficiency of pesticide was almost the same as treatment B. Furthermore, the removal rate for treatment D is 70%. This is thought to be due to the attached pesticides floating up and coming off easily due to the physical action of ultra fine mist. From the above results, the refrigerator having the mist spraying device 120 in the present embodiment has almost the same pesticide removal performance as a dedicated food washing machine.
[0073] 図 9は本実施の形態におけるミスト噴霧装置 120の農薬除去効果とミストの水粒子 径との関係を示す図である。ミストの噴霧時間、噴霧量は図 8の処理 C, Dと同様であ る。 FIG. 9 is a diagram showing the relationship between the agrochemical removal effect of the mist spraying device 120 and the water particle diameter of the mist in the present embodiment. The mist spraying time and spraying amount are the same as in processes C and D in Fig. 8.
[0074] 図 9から明らかなように、マラチオン除去率が 50%程度となるのは、ミストの粒子径 は 0. 5 μ m以下である。また、マラチオン除去率を 70%程度となるのは、ミストの粒子 径は 0. 1 μ m以下である。これはミストの粒子径が微細になるにつれ、農作物表面の 凹凸に入りこみやすくなるためと考えられる。すなわち、ミストの粒子径が微細なほど 、有害物質がミスト粒子に付着しやすくなる、あるいはミスト粒子内に有害物質を取り 込みやすくなるためと考えられる。  [0074] As is apparent from Fig. 9, the malathion removal rate is about 50% when the mist particle size is 0.5 µm or less. The reason why the removal rate of malathion is about 70% is that the mist particle size is 0.1 μm or less. This is considered to be because the mist particle size becomes finer and the surface of the crop surface easily gets into the irregularities. In other words, it is considered that the finer the mist particle size, the more easily harmful substances adhere to the mist particles, or it becomes easier to incorporate harmful substances into the mist particles.
[0075] また、ミストの粒子径が 0. 5 μ mより大きくなると除去率が低減して 、る。これは、噴 霧部 123が静電霧化方式の場合、ミストの粒子径が大きくなるにつれて帯電している 電荷エネルギーが弱くなるためと考えられる。したがって静電霧化方式を適用する場 合、ミストの粒子径を 0. 5 m以下に制御することで、農作物への付着率を高めるの に十分な電荷を帯びたミストが発生する。  [0075] Further, when the particle diameter of the mist is larger than 0.5 μm, the removal rate is reduced. This is presumably because, when the spray part 123 is of the electrostatic atomization type, the charged energy of the charge becomes weaker as the particle diameter of the mist increases. Therefore, when applying the electrostatic atomization method, controlling the mist particle size to 0.5 m or less generates mist with sufficient charge to increase the adhesion rate to crops.
[0076] また、マラチオン除去率を 50%程度となるのは、ミストの粒子径は 0. 003 μ m以上 である。また、マラチオン除去率を 70%程度となるのは、ミストの粒子径は 0. 005 m以上である。これは、水粒子径が 0. 003 μ m未満の場合、粒子が小さすぎ、マラ チオンとの接触頻度が低下し除去効果が低下するためと考えられる。  [0076] Further, the reason why the malathion removal rate is about 50% is that the particle diameter of the mist is 0.003 μm or more. The reason why the removal rate of malathion is about 70% is that the mist particle size is 0.005 m or more. This is presumably because when the water particle size is less than 0.003 μm, the particles are too small, the frequency of contact with malathion decreases, and the removal effect decreases.
[0077] また、ミストの粒子径が 0. 1 μ mを超える場合に比べ、粒子径が 0. 005 μ m以上 0 . 1 μ m以下の場合の方が、除去率が高い。これは、粒子径の小さい場合にラジカル 個数が多いためと考えられる。そのため、マラチオンとの反応性が高くなり、除去率が 高くなるためと考えられる。 [0077] Further, the particle diameter is 0.005 μm or more as compared with the case where the particle diameter of the mist exceeds 0.1 μm. . The removal rate is higher in the case of 1 μm or less. This is thought to be due to the large number of radicals when the particle size is small. For this reason, the reactivity with malathion increases and the removal rate increases.
[0078] 以上の結果より、静電霧化方式のミスト噴霧装置 120で農薬除去率を 50%以上と するためには、ミスト粒子径を 0. 003 111以上0. 5 m以下とすればよぐ農薬除去 率を 70%以上とするためにはミスト粒子径を 0. 005 μ m以上 0. 1 μ m以下とすれば よい。このようにミスト粒子径を制御するのに、本実験ではミスト噴霧装置 120への印 加電圧を変化させることにより、粒子径を調整したが、例えば毛細管供給構造体 133 の直径や長さを変えても粒子径を調整することもできる。これは供給する水のクラスタ の大きさを変化させることで、同じエネルギーを与えてもミスト噴霧装置 120によって 分割された後の粒子径は異なることを利用している。そのため、ほぼ狙いの粒子径が 定まって!/ヽる場合にはこう!/ヽつた方法が簡単な構成で狙 ヽの粒子径のミストを得るこ とができるので有効である。  [0078] From the above results, in order to achieve a pesticide removal rate of 50% or more with the electrostatic mist type mist spraying device 120, the mist particle size should be 0.003 111 to 0.5 m. In order to achieve a pesticide removal rate of 70% or more, the mist particle size should be 0.005 μm or more and 0.1 μm or less. In order to control the mist particle size in this way, in this experiment, the particle size was adjusted by changing the applied voltage to the mist spraying device 120. For example, the diameter and length of the capillary supply structure 133 were changed. However, the particle diameter can be adjusted. This utilizes the fact that the particle size after being divided by the mist spraying device 120 is different even if the same energy is given by changing the size of the water cluster to be supplied. For this reason, when the target particle size is almost fixed! / When the target is hit, this method is effective because the mist of the target particle size can be obtained with a simple configuration.
[0079] 図 10は本実施の形態におけるミスト噴霧装置 120の農薬除去効果とミスト噴霧量と の関係を示す図である。ミストの噴霧時間、ミスト粒子径は図 8の処理 C, Dと同様で ある。また、本実験において野菜室の容積は 70リットル (L)である。  FIG. 10 is a diagram showing the relationship between the agrochemical removal effect of the mist spraying device 120 and the mist spray amount in the present embodiment. The mist spraying time and mist particle size are the same as those of Processes C and D in Fig. 8. The volume of the vegetable compartment in this experiment is 70 liters (L).
[0080] 図 10より明らかなように、マラチオン除去率を 50%程度とするためには、噴霧量は 0. 0007gZh'L以上である必要があり、農薬除去効果は噴霧量の増加とともに向上 している。  [0080] As is apparent from FIG. 10, in order to achieve a malathion removal rate of about 50%, the spray amount needs to be 0.007 gZh'L or more, and the pesticide removal effect improves as the spray amount increases. ing.
[0081] また、 0. 007gZh'Lを超える噴霧量になると農薬除去効果はあるものの発生する オゾン濃度が 0. 03ppmを越えるため、現時点での静電霧化方式における技術では 家庭用冷蔵庫への適用は人体の安全性の観点から難しい。なお、オゾン濃度 0. 03 ppmとはオゾン臭くな 、レベルであり、野菜に対する組織損傷などの悪影響を生じる ことなぐ農薬分解効果を持つオゾン濃度の上限値である。このように噴霧量の適正 範囲は 0. 0007gZh'L以上 0. 007gZh'L以下である。ただし、将来的には現段 階での技術よりも進み、静電霧化方式でも 0. 007g/h'Lを超える噴霧量でも、ォゾ ン濃度が 0. 03ppm以下に抑えることができる場合には、この噴霧量を拡大すること ができる。また、オゾン濃度を 0. 03ppm以下にするために、オゾン分解触媒ゃォゾ ン分解装置など付加すると、 0. 007gZh'L以上であっても、オゾン分解触媒ゃォゾ ン分解装置などでオゾン濃度を低減できれば、噴霧量を例えば 10倍の 0. 07g/h- Lまで増やしてもよい。この上限値拡大範囲は、付加したオゾン分解触媒の能力に依 存する。 [0081] Also, when the spray amount exceeds 0.007gZh'L, although there is a pesticide removal effect, the generated ozone concentration exceeds 0.03ppm. Application is difficult from the viewpoint of human safety. The ozone concentration of 0.03 ppm is a level that does not cause ozone odor and is the upper limit of the ozone concentration that has a pesticide-degrading effect without causing adverse effects such as tissue damage to vegetables. Thus, the appropriate range of spray amount is 0.0007 gZh'L or more and 0.007 gZh'L or less. However, in the future, if it is possible to suppress the ozone concentration to 0.03 ppm or less even if the spraying amount exceeds 0.07 g / h'L even in the electrostatic atomization method, even if the technology is advanced than the current technology The amount of spray can be increased. In order to reduce the ozone concentration to 0.03 ppm or less, the ozone decomposition catalyst If the ozone concentration can be reduced with an ozone decomposition catalyst ozone decomposition device, etc., even if it is 0.07 gZh'L or more, the spray amount will be 10 times, for example, 0.0g / h-L. May increase. This upper limit expansion range depends on the capacity of the added ozonolysis catalyst.
[0082] 以上のように本実施の形態では、簡便な構造で農薬等の有害物質を除去する機能 を有する冷蔵庫が得られる。使用者は冷蔵庫に野菜や果物を保存するだけで、簡単 に農薬等の有害物質を除去することができる。  [0082] As described above, in the present embodiment, a refrigerator having a simple structure and a function of removing harmful substances such as agricultural chemicals can be obtained. Users can easily remove pesticides and other harmful substances simply by storing vegetables and fruits in the refrigerator.
[0083] また、ミスト噴霧装置 120はミストを野菜室 114内に噴霧する。これにより、噴霧され たミストが、農作物表面の微細な凹部に入り込み、凹部に残留している農薬等の有 害物質を物理的作用、化学的作用の相乗効果により除去する。このように、少量の 水で農薬等有害物質を除去することができる。  [0083] The mist spraying device 120 sprays the mist into the vegetable compartment 114. As a result, the sprayed mist enters the fine recesses on the crop surface and removes harmful substances such as pesticides remaining in the recesses by the synergistic effect of physical and chemical action. In this way, harmful substances such as pesticides can be removed with a small amount of water.
[0084] また、微細ミストと同時に発生するオゾンや OHラジカルが確実に野菜表面に付着 する。これにより、微細ミストが微細な凹部に入り込み、凹部に残留している農薬等の 有害物質を物理的作用、化学的作用の相乗効果により除去する。このように、少量 の水で農薬等有害物質を除去、分解することができる。  [0084] In addition, ozone and OH radicals generated simultaneously with the fine mist reliably adhere to the vegetable surface. As a result, the fine mist enters the fine recesses and removes harmful substances such as pesticides remaining in the recesses due to the synergistic effect of physical action and chemical action. In this way, harmful substances such as agricultural chemicals can be removed and decomposed with a small amount of water.
[0085] また、ミスト噴霧装置 120は農作物表面の農薬除去に有用な粒子径のミストを発生 する。これにより、ミストが農作物表面の微細な凹部に効率よく侵入し、細部にわたる まで農薬等有害物質が除去される。具体的には、ミストの粒子径は 0. 003 m以上 0. 5 m以下であることが好ましい。  [0085] The mist spraying device 120 generates mist having a particle size useful for removing agricultural chemicals on the surface of agricultural products. As a result, the mist efficiently penetrates into the fine recesses on the crop surface and removes harmful substances such as agricultural chemicals to the finest detail. Specifically, the particle diameter of the mist is preferably 0.003 m or more and 0.5 m or less.
[0086] また、ミスト噴霧装置 120のミスト噴霧量は 0. 0007gZh'L以上 0. 07g/h'L以下 とすることが好ましい。これにより、有害物質の除去のために必要な噴霧量が確保さ れ、有害物質の除去効果が発揮されるとともに、農作物の保存性も確保される。  [0086] Further, the mist spray amount of the mist spray device 120 is preferably set to 0.007 gZh'L or more and 0.07 g / h'L or less. As a result, the amount of spray necessary for removal of harmful substances is secured, the removal effect of harmful substances is demonstrated, and the preservation of crops is also secured.
[0087] また、微細ミストと農作物の電位差を利用して農作物表面に微細ミストが付着する。  [0087] Further, the fine mist adheres to the surface of the crop using the potential difference between the fine mist and the crop.
そのため効率よくミストが付着する。  Therefore, mist adheres efficiently.
[0088] 上記説明では、静電霧化方式にてミストを発生することで、オゾン含有ミストを発生 させる例を説明しているが、オゾン以外の酸化分解性ミスト、またはアルカリ分解性ミ ストを噴霧してもよい。この場合もオゾン水と同様、農作物表面の農薬等の有害物質 の分解効果が高まる。また、庫内に付着する汚れや庫内臭気を除去する効果や分解 する効果も高まる。 [0088] In the above description, an example in which ozone-containing mist is generated by generating mist by the electrostatic atomization method is described. However, oxidatively-decomposable mist other than ozone or alkali-decomposable mist is used. You may spray. In this case, as with ozone water, the effect of decomposing harmful substances such as pesticides on the surface of crops is enhanced. In addition, the effect of removing dirt and odor in the storage and decomposition The effect to do increases.
[0089] また、本実施の形態における噴霧部 123は静電霧化方式でミストを生成する。これ 以外に、実施の形態 1における図 2のように、超音波素子と金属メッシュとを用いて微 細化したミストに静電負荷する噴霧部を用いてもょ ヽ。あるいは超音波素子の周波数 を上げて微細化したミストに静電負荷する噴霧部を用いても、同様の効果が得られる  In addition, the spray unit 123 in the present embodiment generates mist by an electrostatic atomization method. In addition to this, as shown in FIG. 2 in the first embodiment, a spray unit that electrostatically loads a mist that is miniaturized using an ultrasonic element and a metal mesh may be used. Alternatively, the same effect can be obtained by using a spray unit that electrostatically loads the mist that has been refined by increasing the frequency of the ultrasonic element.
[0090] 本実施の形態では、噴霧されたミスト中に放電によって発生したオゾンガスが溶存 する。これ以外に貯留水をオゾン水あるいは反応性に富む機能水としても同様の効 果が得られる。すなわち、貯水槽 122はミストを生成するための液体を保持し、必ずし も水を保持するとは限らない。 [0090] In the present embodiment, ozone gas generated by discharge is dissolved in the sprayed mist. In addition to this, the same effect can be obtained if the stored water is ozone water or functional water with high reactivity. In other words, the water tank 122 holds a liquid for generating mist and does not always hold water.
[0091] なお、本実施の形態において、貯留水を保持する保持部は貯水槽 122であり、貯 水槽 122は除霜水である貯留水 124を保持している。これ以外に保持部として吸湿 剤を用いて、野菜室 114内の空気内に含まれて 、る水分を抽出して保持してもよ!/ヽ 。吸湿剤としては例えば、シリカゲル、ゼォライト、活性炭等の多孔質材料等を用いる ことができる。このように除霜水等を用いて、使用者が外部から貯留水を供給すること なく貯留水を確保できるものであれば、外部からの水分の補給の手間がかからず使 い勝手が向上する。  In the present embodiment, the holding unit that holds the stored water is the water storage tank 122, and the water storage tank 122 holds the stored water 124 that is defrost water. In addition, a moisture absorbent may be used as a holding part to extract and hold the moisture contained in the air in the vegetable compartment 114! / と し て. As the hygroscopic agent, for example, porous materials such as silica gel, zeolite and activated carbon can be used. In this way, if defrosted water can be used to secure the stored water without the need for the user to supply the stored water from the outside, the user-friendliness is improved without the need for external water replenishment. To do.
[0092] (実施の形態 4)  [Embodiment 4]
図 11は本発明の実施の形態 4における冷蔵庫の断面図である。図 12、図 13はそ れぞれ、図 11に示す冷蔵庫のミスト噴霧装置近傍の縦断面図と正面図である。図 14 は図 12に示すミスト噴霧装置の噴霧部の縦断面と振幅波形とを示す図である。図 15 は図 11に示す冷蔵庫の機能ブロック図である。図 16は図 15に示す制御部における 制御フロー図である。図 18は図 12に示すミスト噴霧装置による農薬除去効果とミスト の水粒子径との関係を示す図である。図 19は図 12に示すミスト噴霧装置による農薬 除去効果とミスト噴霧量との関係を示す図である。  FIG. 11 is a cross-sectional view of the refrigerator in the fourth embodiment of the present invention. 12 and 13 are a longitudinal sectional view and a front view of the vicinity of the mist spraying device of the refrigerator shown in FIG. 11, respectively. FIG. 14 is a view showing a longitudinal section and an amplitude waveform of the spray section of the mist spraying apparatus shown in FIG. FIG. 15 is a functional block diagram of the refrigerator shown in FIG. FIG. 16 is a control flowchart in the control unit shown in FIG. FIG. 18 is a graph showing the relationship between the pesticide removal effect of the mist spraying device shown in FIG. 12 and the water particle diameter of the mist. FIG. 19 is a graph showing the relationship between the pesticide removal effect and the amount of mist sprayed by the mist spraying device shown in FIG.
[0093] この冷蔵庫が図 5に示す冷蔵庫と異なる点は、仕切板 111Aにミスト噴霧装置 302 が設けられ、野菜室 114の天面にオゾン発生体 323が設けられている点である。そ れ以外の基本的な構成は図 5に示す冷蔵庫と同様である。なお野菜室 114には容 器 228が設置されている。 This refrigerator differs from the refrigerator shown in FIG. 5 in that a mist spraying device 302 is provided on the partition plate 111A, and an ozone generator 323 is provided on the top surface of the vegetable compartment 114. The other basic configuration is the same as that of the refrigerator shown in FIG. In the vegetable room 114 Container 228 is installed.
[0094] 仕切板 111Aには超音波霧化方式の噴霧部 301を有するミスト噴霧装置 302が組 み込まれて!/、る。仕切板 111Aは主に発泡スチロールなどの断熱材で構成されてお り、その壁厚は 30mm程度である。ただし、供給部 304の背面では、壁厚は 5mmか ら 10mmで構成されている。  [0094] The partition plate 111A incorporates a mist spraying device 302 having a spraying portion 301 of an ultrasonic atomization system! Partition plate 111A is mainly composed of a heat insulating material such as polystyrene foam, and its wall thickness is about 30 mm. However, on the back of the supply unit 304, the wall thickness is 5 to 10 mm.
[0095] 供給部 304は貯留水を保持し、噴霧部 301に貯留水を供給する。供給部 304は、 水収集板 321と加熱部 328と送風部 317とカバー部材 306とを有する。水収集板 32 1は庫内側に設置され、加熱部 328は水収集板 321の一面に当接して配置されてい る。加熱部 328は例えば、ニクロム線で構成された加熱ヒータなどである。送風部 31 7はボックスファンなどであり、庫内側に配置され水収集板 321に庫内の空気を送る。 カバー部材 306は循環風路 307を構成して 、る。  The supply unit 304 holds the stored water and supplies the stored water to the spray unit 301. The supply unit 304 includes a water collecting plate 321, a heating unit 328, a blower unit 317, and a cover member 306. The water collecting plate 321 is installed inside the cabinet, and the heating unit 328 is disposed in contact with one surface of the water collecting plate 321. The heating unit 328 is, for example, a heater composed of nichrome wire. The air blower 317 is a box fan or the like, and is arranged inside the warehouse to send the air in the warehouse to the water collecting plate 321. The cover member 306 constitutes a circulation air passage 307.
[0096] 図 13に示すように、カバー部材 306には循環風路 307に関する第 1の循環風路開 口部（以下、開口部） 308と第 2の循環風路開口部（以下、開口部） 309とが設けられ ている。さらに、水収集板 321には水収集板 321表面の温度を検知するための水収 集板温度検知部（以下、検知部） 327が設置されている。  As shown in FIG. 13, the cover member 306 includes a first circulation air passage opening (hereinafter referred to as an opening) 308 and a second circulation air passage opening (hereinafter referred to as an opening) related to the circulation air passage 307. 309 and is provided. Further, the water collection plate 321 is provided with a water collection plate temperature detection unit (hereinafter, detection unit) 327 for detecting the temperature of the surface of the water collection plate 321.
[0097] また図 14に示すように、噴霧部 301はホーン 310と圧電素子 311とを有している。  Further, as shown in FIG. 14, the spray section 301 has a horn 310 and a piezoelectric element 311.
ホーン 310は切削加工等により略円錐状に形成され、ホーン 310の噴霧先端部 310 Aは少なくとも、野菜室 114内に開口している。圧電素子 311側には、ホーン 310と 一体的にフランジ部 312が形成されて 、る。またホーン 310と圧電素子 311とは接着 固定されている。ホーン 310の形状により、圧電素子 311で発生する振動は噴霧先 端部 310Aで最大振幅となるよう増幅される。  The horn 310 is formed in a substantially conical shape by cutting or the like, and the spray tip 310 A of the horn 310 is opened at least in the vegetable compartment 114. A flange portion 312 is formed integrally with the horn 310 on the piezoelectric element 311 side. The horn 310 and the piezoelectric element 311 are fixedly bonded. Due to the shape of the horn 310, the vibration generated in the piezoelectric element 311 is amplified to a maximum amplitude at the spray tip end 310A.
[0098] 噴霧部 301はフランジ部 312を介して、冷蔵庫側の取り付け部材である接続部 305 に取り付けられている。あるいは、直接的に冷蔵庫に取り付けられている。この時、超 音波振動の振幅はフランジ部 312で振幅の節部となるように設定されている。すなわ ち圧電素子 311が駆動した場合、図 14に示す各部位が振動する。  The spray part 301 is attached to a connection part 305 that is an attachment member on the refrigerator side via a flange part 312. Or it is directly attached to the refrigerator. At this time, the amplitude of the ultrasonic vibration is set to be a node of the amplitude at the flange portion 312. That is, when the piezoelectric element 311 is driven, each part shown in FIG. 14 vibrates.
[0099] このように伝播する振動の節部であるフランジ部 312を接続部 305に接続すること により、超音波を発生させる際の振動が冷蔵庫本体へ伝達することが防止される。そ のため、冷蔵庫の部品や庫内に備えられた棚等が振動することによる騒音が低減さ れる。すなわち、振動エネルギーによってミストを生成するタイプのミスト噴霧装置 30 2を設けた冷蔵庫の、騒音、振動が抑制される。 [0099] By connecting the flange portion 312 that is a node portion of the propagating vibration in this way to the connection portion 305, it is possible to prevent the vibration when the ultrasonic waves are generated from being transmitted to the refrigerator main body. Therefore, noise caused by vibration of refrigerator parts and shelves in the cabinet is reduced. It is. That is, noise and vibration of the refrigerator provided with the mist spraying device 302 of the type that generates mist by vibration energy are suppressed.
[0100] ホーン 310は熱伝導性の高い材質で構成されている。例えばアルミニウム、チタン 、ステンレス等の金属で構成されている。特に、軽量で、熱伝導性が高ぐ超音波伝 達時の振幅の増幅性能の点から、アルミニウムを主成分とする材料で構成することが 好ましい。また、長寿命化のためにはステンレスを主成分とする材料で構成すること が好ましい。 [0100] The horn 310 is made of a material having high thermal conductivity. For example, it is made of a metal such as aluminum, titanium or stainless steel. In particular, from the viewpoint of the amplification performance of the amplitude at the time of ultrasonic transmission that is lightweight and has high thermal conductivity, it is preferable to use aluminum as a main component. In order to extend the life, it is preferable to use a material mainly composed of stainless steel.
[0101] 前述のように、超音波振動の振幅がフランジ部 312で振幅の節部に、ホーン 310の 先端である噴霧先端部 310Aで振幅の腹部となるように、ホーン 310の寸法が設定さ れている。またフランジ部 312と噴霧先端部 310Aとの間の寸法が超音波振動の 1Z 4波長となるように、ホーン 310の寸法が設定されている。このように振動の節を冷蔵 庫本体に固定した上で、そこ力 得たい周波数の 1Z4波長の位置を振幅の腹部と なっている。この構造では、フランジ部 312と噴霧先端部 310Aとの間に腹部が複数 ある場合と比べて、振動エネルギー損失を大幅に低減することができ、振動に要する 電力を抑えることができる。このようにホーン 310を設計することで、低入力でかつ高 出力が得られるとともに、ホーン 310が小型になる。  [0101] As described above, the dimensions of the horn 310 are set so that the amplitude of the ultrasonic vibration becomes the amplitude node at the flange portion 312 and the abdominal portion of the amplitude at the spray tip portion 310A which is the tip of the horn 310. It is. The dimension of the horn 310 is set so that the dimension between the flange portion 312 and the spray tip portion 310A is 1Z 4 wavelength of ultrasonic vibration. In this way, with the vibration node fixed to the refrigerator main body, the position of the 1Z4 wavelength of the frequency at which the force is desired is the abdomen of the amplitude. With this structure, vibration energy loss can be significantly reduced and the power required for vibration can be reduced compared to the case where there are a plurality of abdominal portions between the flange portion 312 and the spray tip portion 310A. By designing the horn 310 in this way, low input and high output can be obtained, and the horn 310 can be downsized.
[0102] 近年の家庭用冷蔵庫においては、外形寸法が従来のままで庫内容量をより大きく することで使用者の使い勝手を向上させるという傾向がある。このようなタイプの冷蔵 庫において、断熱壁は高断熱化することでより薄くなり、背面側の機器収納空間等も よりコンパクトとなっている。このように、高出力で小型のホーン 310を用いることで、 庫内へのミスト噴霧装置 302の延出を防いだ上で、十分な量の発生ミストが得られ、 冷蔵庫の使 1、勝手が向上する。  [0102] In recent refrigerators for home use, there is a tendency to improve the user-friendliness by increasing the internal capacity while maintaining the same external dimensions. In this type of refrigerator, the heat insulation wall becomes thinner by increasing the heat insulation, and the equipment storage space on the back side is made more compact. In this way, by using the small horn 310 with high output, the mist spraying device 302 can be prevented from extending into the cabinet, and a sufficient amount of generated mist can be obtained. improves.
[0103] またホーン 310の長さは、発生ミストの粒子径と圧電素子 311の発振周波数、それ にホーン 310の材質により決定される。例えば、ミスト粒子径を約 10 mとする場合、 ホーン 310の材質がアルミニウムで、圧電素子 311の発振周波数は約 270kHzであ れば、ホーン 310の長さは約 6mmとなる。また、ミスト粒子径を約 15 mとする場合、 ホーン 310の材質がアルミニウムで、圧電素子 311の発振周波数が約 146kHzであ ればホーン 310の長さは約 11mmとなる。これらの一連の理論計算値まとめを表 1に 記載する。 The length of the horn 310 is determined by the particle diameter of the generated mist, the oscillation frequency of the piezoelectric element 311, and the material of the horn 310. For example, when the mist particle diameter is about 10 m, if the material of the horn 310 is aluminum and the oscillation frequency of the piezoelectric element 311 is about 270 kHz, the length of the horn 310 is about 6 mm. When the mist particle diameter is about 15 m, the length of the horn 310 is about 11 mm if the material of the horn 310 is aluminum and the oscillation frequency of the piezoelectric element 311 is about 146 kHz. A summary of these theoretical calculations is shown in Table 1. Describe.
[0104] [表 1]  [0104] [Table 1]
Figure imgf000030_0001
Figure imgf000030_0001
[0105] また、この冷蔵庫には内部を冷却するための冷却装置が搭載されている。実施の 形態 3で述べたように、冷却装置は圧縮器 104、凝縮器 105、膨張弁やキヤビラリチ ユーブなどの減圧装置（図示せず)、蒸発器 102などを有する。また、冷媒には、地 球環境保全の観点から地球温暖化係数が小さ 、可燃性冷媒であるイソブタンを用い られている場合ちある。  [0105] Further, the refrigerator is equipped with a cooling device for cooling the inside. As described in the third embodiment, the cooling device includes the compressor 104, the condenser 105, the decompression device (not shown) such as an expansion valve and a cylindrical tube, the evaporator 102, and the like. In addition, isobutane, which is a flammable refrigerant, has a low global warming potential from the viewpoint of global environmental conservation.
[0106] 以上のように構成された冷蔵庫について、以下その動作'作用を説明する。図 11に 示す冷蔵庫において、野菜室 114は、冷気の配分や加熱部などの ON 'OFF運転に より 4°C力 6°Cになるように調整され、一般的には庫内温度検知部をもたないものが 多い。また、野菜室 114内は、食品力もの水分の蒸散と扉開閉による水蒸気の侵入 等により高湿である。ある程度の冷却能力を確保するために、仕切板 111Aは他の 部分より薄く構成されている。  [0106] The operation of the refrigerator configured as described above will be described below. In the refrigerator shown in Fig. 11, the vegetable compartment 114 is adjusted to 4 ° C force 6 ° C by ON 'OFF operation such as cold air distribution and heating part, and generally the inside temperature detection part is installed. There are many things that do not have. In addition, the vegetable compartment 114 is humid due to the transpiration of food-powered moisture and the invasion of water vapor by opening and closing the door. In order to ensure a certain amount of cooling capacity, the partition plate 111A is configured to be thinner than other portions.
[0107] ここで、水収集板 321の表面温度を露点温度以下にすれば、水収集板 321近傍の 水蒸気は水収集板 321に結露し、水滴が確実に生成される。具体的には、制御部 3 14が水収集板 321に設置されている検知部 327により水収集板 321表面の温度状 態を把握する。そして制御部 314が送風部 317、加熱部 328を ONZOFF制御また は Duty制御する。これにより、水収集板 321の表面温度が露点温度以下に調整さ れ、送風部 317により庫内より送られた高湿空気に含まれる水分が水収集板 321で 結露する。  Here, if the surface temperature of the water collecting plate 321 is set to be equal to or lower than the dew point temperature, the water vapor in the vicinity of the water collecting plate 321 is condensed on the water collecting plate 321 and water droplets are reliably generated. Specifically, the control unit 314 grasps the temperature state of the surface of the water collection plate 321 by the detection unit 327 installed on the water collection plate 321. Then, the control unit 314 performs ONZOFF control or duty control of the air blowing unit 317 and the heating unit 328. As a result, the surface temperature of the water collecting plate 321 is adjusted to be equal to or lower than the dew point temperature, and moisture contained in the high-humidity air sent from the interior by the blower 317 is condensed on the water collecting plate 321.
[0108] なお図 15に示すように、野菜室 114内に野菜室温度検知部（以下、検知部） 325 や野菜室湿度検知部（以下、検知部） 326などを設けてもよい。この構成では、あら 力じめ決められた演算により厳密に露点温度が庫内環境下の変化に応じて割り出す ことができる。水収集板 321表面で氷や霜が生成した場合でも、制御部 314は、加熱 部 328を駆動して融解温度まで水収集板 321表面温度を上昇させることが可能なの で適度に水を生成することができる。ここで、送風部 317が運転されると野菜室 114 の空気の影響により水収集板 321表面温度は上昇し、送風部 317が停止している場 合に低下する。供給部 304の背面での仕切板 111 Aの壁厚が 10mmを超えると、送 風部 317が運転時、加熱部 328が OFFでも水収集板 321表面温度は露点温度以 上になり、結露量が調整できない。逆に壁厚が 5mm未満の場合は、水収集板 321 表面温度が低すぎるので常時、加熱部 328が ONの状態になりエネルギー効率が悪 くなる。よって、水収集板 321背面での仕切板 111Aの厚みは 5mm以上 10mm以下 にすることが好ましい。これにより水収集板 321の表面温度が制御可能になるととも に、加熱部 328の消費エネルギーが最小になる。 As shown in FIG. 15, the vegetable room temperature detection unit (hereinafter referred to as detection unit) 325 is provided in the vegetable room 114. And a vegetable room humidity detection unit (hereinafter referred to as detection unit) 326 may be provided. In this configuration, the dew point temperature can be accurately determined according to changes in the internal environment by a predetermined calculation. Even when ice or frost is generated on the surface of the water collecting plate 321, the control unit 314 can drive the heating unit 328 to raise the surface temperature of the water collecting plate 321 to the melting temperature, and thus generate water appropriately. be able to. Here, when the blower 317 is operated, the surface temperature of the water collecting plate 321 rises due to the influence of the air in the vegetable compartment 114, and decreases when the blower 317 is stopped. If the wall thickness of the partition plate 111 A on the back of the supply unit 304 exceeds 10 mm, the surface temperature of the water collection plate 321 will exceed the dew point temperature even when the air supply unit 317 is in operation and the heating unit 328 is OFF, and the amount of condensation Cannot be adjusted. On the other hand, when the wall thickness is less than 5 mm, the surface temperature of the water collecting plate 321 is too low, so that the heating unit 328 is always ON and the energy efficiency is poor. Therefore, the thickness of the partition plate 111A on the back surface of the water collecting plate 321 is preferably 5 mm or more and 10 mm or less. As a result, the surface temperature of the water collecting plate 321 can be controlled, and the energy consumption of the heating unit 328 is minimized.
[0109] また、結露を促進させるためには、より湿度の高い野菜室 114内の空気を循環させ る必要がある。そこで、送風部 317により空気を取り込む際に、例えば開口部 309より 高湿の空気をとりこむ。そして水収集板 321で結露させた後、開口部 308より庫内に 空気を吐出し、野菜室 114内の空気を循環させる。このようにすれば結露が促進され る。 [0109] Further, in order to promote condensation, it is necessary to circulate the air in the vegetable room 114 with higher humidity. Therefore, when air is taken in by the air blowing unit 317, for example, humid air is taken in from the opening 309. Then, after dew condensation is performed by the water collecting plate 321, air is discharged from the opening 308 into the cabinet, and the air in the vegetable compartment 114 is circulated. In this way, condensation is promoted.
[0110] 水収集板 321表面で結露した水滴は徐々に成長し、自重によりポンプなどの動力 を使わずに下方に流れ、噴霧部 301近傍の貯水槽 313に集まる。貯水槽 313は断 熱箱体 110内に設けられ、液体を保持する保持部である。集まった結露水は、給水 部 303によりホーン 310先端に供給される。  [0110] Water droplets condensing on the surface of the water collecting plate 321 gradually grow, flow downward without using the power of a pump or the like due to their own weight, and collect in the water storage tank 313 in the vicinity of the spray unit 301. The water storage tank 313 is provided in the heat insulation box 110 and is a holding unit that holds a liquid. The collected condensed water is supplied to the tip of the horn 310 by the water supply unit 303.
[0111] ホーン 310先端に供給された水は、超音波振動子 311の振動により粒子径の小さ いミストとして野菜室 114内に噴霧される。ホーン 310は、噴霧先端部 310A付近で 振動による発熱を生じる力 ホーン 310が高熱伝導性材料であるため、この熱はホー ン 310全体へ拡散される。  [0111] The water supplied to the tip of the horn 310 is sprayed into the vegetable compartment 114 as a mist having a small particle diameter by the vibration of the ultrasonic transducer 311. The horn 310 is a force that generates heat by vibration in the vicinity of the spray tip 310A. Since the horn 310 is a highly thermally conductive material, this heat is diffused throughout the horn 310.
[0112] また、少なくとも噴霧先端部 310Aは野菜室 114内に設けられている。そのため、野 菜等の農作物が収納されている野菜室 114に対して直接的にミスト粒子が噴霧され る。すなわち、噴霧先端部 310Aと農作物との距離が短い。この構成は、例えば野菜 室 114外でミストを噴霧してから野菜室 114内へ送り込む場合と比較して、ミスト粒子 の気化が防止され、浮遊状態における流速が高まる。そのため、農作物表面へのミス トの付着率が高まる。 [0112] At least the spray tip 310A is provided in the vegetable compartment 114. For this reason, mist particles are sprayed directly on the vegetable compartment 114, where vegetables such as vegetables are stored. The That is, the distance between the spray tip 310A and the crop is short. This configuration prevents vaporization of mist particles and increases the flow velocity in a floating state, for example, compared to a case where mist is sprayed outside the vegetable compartment 114 and then fed into the vegetable compartment 114. This increases the rate of mist adhesion to the crop surface.
[0113] また、噴霧部 301には、電気エネルギーによる電歪現象を利用した圧電素子 311 が用いられている。噴霧部 301は、高周波数の振動エネルギーを用いて水滴を細粒 化することができる。そのため、微細ミストの生成時に高電圧を必要とせず、低電圧で 微細ミストを得ることが可能となる。よって、ミスト発生に伴う安全性が高まるとともにェ ネルギー消費が低減される。また、水粒子に電気分解等の分解を行わないので、水 の成分を変えることなぐそのままミストイ匕することができる。そのため、供給部 304の 代わりに貯水タンク等から機能水を噴霧部 301に供給しても、振動エネルギーによつ てミストを生成するタイプの霧化装置は、水粒子に電気分解等の分解を行わな ヽの で、水の成分を変えずにミストイ匕できる場合がある。このように、振動エネルギーの与 え方によって水の成分をそのままミストイ匕するような装置にした場合には、例えばアル カリイオン水やマイナスイオン水等、純粋な水と比較してなんらかの成分を付加した 機能水を用いても、その成分をそのままミストイ匕することが可能となり、使用者の-一 ズに応じた任意の水をミストとして供給することができる。  [0113] In addition, the spray unit 301 uses a piezoelectric element 311 utilizing an electrostrictive phenomenon caused by electric energy. The spray unit 301 can make water droplets fine using vibration energy of high frequency. Therefore, it is possible to obtain a fine mist with a low voltage without requiring a high voltage when producing the fine mist. Therefore, safety associated with mist generation is increased and energy consumption is reduced. In addition, since the water particles are not decomposed by electrolysis or the like, it is possible to make a mistake without changing the water components. Therefore, even if functional water is supplied to the spraying unit 301 from a water storage tank or the like instead of the supply unit 304, the type of atomizer that generates mist by vibration energy does not decompose water particles such as electrolysis. Since it is not done, it may be possible to mistoy without changing the water composition. In this way, when the device is configured to mistoy the water component as it is by applying vibrational energy, some component is added compared to pure water, such as alkaline ionized water or negative ionized water. Even if functional water is used, it becomes possible to misto the components as they are, and any water according to the user's needs can be supplied as mist.
[0114] なお、噴霧部 301には圧電振動子 311を用いることに限定されない。振動子として 磁力のエネルギーによる磁歪現象を利用した磁歪振動子を用いてもよい。その場合 でも、上記と同様の効果が得られる。  Note that the spray unit 301 is not limited to using the piezoelectric vibrator 311. A magnetostrictive vibrator using a magnetostriction phenomenon caused by magnetic energy may be used as the vibrator. Even in this case, the same effect as described above can be obtained.
[0115] また、噴霧部 301は、超音波振動によりミストを生成する。超音波の周波数は、一般 に振動による騒音が定常音として人の耳に聞こえない周波数帯にある。このように例 えば 2万へルツ以上の周波数を用いることで、家庭用の冷蔵庫に適用した場合でも、 振動による騒音が定常音として人の耳に聞こえない。そのため、低騒音で、品位の高 V、ミスト噴霧装置 302を有する冷蔵庫が得られる。  [0115] Further, the spray unit 301 generates mist by ultrasonic vibration. The frequency of ultrasonic waves is generally in a frequency band in which noise caused by vibration cannot be heard by human ears as a steady sound. For example, by using a frequency of 20,000 hertz or more, even when applied to a refrigerator for home use, noise caused by vibration cannot be heard by the human ear as a steady sound. Therefore, a refrigerator having low noise, high quality V, and mist spraying device 302 can be obtained.
[0116] 次に図 15に示す機能ブロック図と、図 16の制御フロー図とを用いて制御部 314に よる制御を説明する。図 15において、制御部 314には検知部 325、 326、 327とドア 開閉検知部（以下、検知部） 330とからの情報信号が入力される。制御部 314は噴霧 部 301と加熱部 328と圧縮機 104と送風部 317とオゾン発生体 323とを制御する。加 熱部 328は噴霧部 301に給水する水量を調整する。例えば、検知部 325が庫内温 度を 5°C、検知部 326が庫内湿度を 90%、検知部 327が水収集板 321の表面温度 を 4°Cと検知する。この場合、制御部 314は、噴霧部 301の ONZOFFと、加熱部 32 8の動作とを決定する。つまり、水収集板 321の表面温度は、露点温度以下に冷却 する必要がある。そのために制御部 314は例えば、加熱部 328を OFFもしくは入力 を低下させる。そして冷気の温度を低下させるため、圧縮機 104の回転数を増加させ る力、もしくは送風部 317の回転数を低下させる。また制御部 314は、検知部 330に より扉が閉まっていると検知されたときのみ噴霧部 301を動作させる。これにより、扉 開時の外部へのミストもれが防止される。 Next, control by the control unit 314 will be described using the functional block diagram shown in FIG. 15 and the control flow diagram of FIG. In FIG. 15, information signals from the detection units 325, 326, and 327 and the door opening / closing detection unit (hereinafter, detection unit) 330 are input to the control unit 314. Control unit 314 is spray The unit 301, the heating unit 328, the compressor 104, the air blowing unit 317, and the ozone generator 323 are controlled. The heating unit 328 adjusts the amount of water supplied to the spray unit 301. For example, the detection unit 325 detects the internal temperature as 5 ° C, the detection unit 326 detects the internal humidity as 90%, and the detection unit 327 detects the surface temperature of the water collecting plate 321 as 4 ° C. In this case, the control unit 314 determines ONZOFF of the spray unit 301 and the operation of the heating unit 328. That is, the surface temperature of the water collecting plate 321 needs to be cooled below the dew point temperature. Therefore, for example, the control unit 314 turns off the heating unit 328 or reduces the input. In order to reduce the temperature of the cold air, the force for increasing the rotational speed of the compressor 104 or the rotational speed of the air blowing unit 317 is decreased. The control unit 314 operates the spray unit 301 only when the detection unit 330 detects that the door is closed. This prevents mist leakage to the outside when the door is opened.
[0117] 次に図 16を用いて制御フローを詳細に説明する。まずステップ 21では、検知部 32 7が水収集板 327の表面温度 t°Cを検知する。制御部 314は、 t°Cがあら力じめ決め られた t °Cと t °Cの範囲にある場合、農薬除去を作動させることを判断し制御はステNext, the control flow will be described in detail with reference to FIG. First, in step 21, the detection unit 327 detects the surface temperature t ° C of the water collecting plate 327. The control unit 314 determines that the pesticide removal is to be activated when t ° C is within the predetermined t ° C and t ° C range, and the control is
A B A B
ップ 22に進む。 t°Cが t °Cと t °Cの範囲にない場合に、制御はステップ 21に戻って  Go to step 22. If t ° C is not in the t ° C and t ° C range, control returns to step 21
A B  A B
温度検知と判断とが繰り返される。  Temperature detection and determination are repeated.
[0118] ステップ 22では、制御部 314が噴霧部 301を運転し、野菜室 114内にミストを噴霧 する。次にステップ 23にて、噴霧部 301の積算運転時間 Tがあら力じめ決められた [0118] In step 22, the control unit 314 operates the spray unit 301 to spray mist into the vegetable compartment 114. Next, in step 23, the accumulated operation time T of the spraying part 301 is determined in advance.
A  A
T以上なれば、制御部 314はステップ 24にてオゾン発生体 323を動作させ、制御は ステップ 25に進む。 Tが T未満の場合、引き続きステップ 23にて制御部 314は噴  If it is equal to or greater than T, the control unit 314 operates the ozone generator 323 in step 24, and the control proceeds to step 25. If T is less than T, control unit 314 continues to eject at step 23.
A 1  A 1
霧時間を判断する。  Determine the fog time.
[0119] ステップ 25では、噴霧部 301の運転積算時間 Tがあらかじめ決められた T以上に  [0119] In step 25, the accumulated operation time T of the spraying part 301 exceeds the predetermined T.
A 2 なれば、制御部 314はステップ 26にて噴霧部 301を停止してミスト噴霧を終了する。 同時に制御部 314はオゾン発生体 323も OFFにし制御はステップ 27に進む。 T力 S  If A 2, the control unit 314 stops the spray unit 301 in step 26 and ends the mist spraying. At the same time, the controller 314 also turns off the ozone generator 323 and the control proceeds to step 27. T force S
A  A
T未満の場合、引き続きステップ 25にて制御部 314は噴霧時間を判断する。  If it is less than T, the control unit 314 continues to determine the spraying time in step 25.
2  2
[0120] 次にステップ 27で噴霧部 301の停止時間 Tがあらかじめ決められた T以上になれ  [0120] Next, in step 27, the stop time T of the spray section 301 must be greater than or equal to the predetermined T.
B 3  B 3
ば、制御部 314はステップ 28により T、 Tを初期値に戻し、再びステップ 21に戻る。  For example, the control unit 314 returns T and T to the initial values in step 28 and returns to step 21 again.
A B  A B
Tが T未満の場合、引き続きステップ 27にて制御部 314は噴霧部 301の停止時間 If T is less than T, the control unit 314 continues the stop time of the spray unit 301 in step 27.
B 3 B 3
を判断する。 [0121] 次に、供給部 304、給水部 303の代わりに、噴霧部 301にミストを発生させるための 水等の液体を供給する構成について説明する。図 17は噴霧部 301近傍の縦断面図 である。 Judging. Next, a configuration for supplying a liquid such as water for generating mist to the spray unit 301 instead of the supply unit 304 and the water supply unit 303 will be described. FIG. 17 is a longitudinal sectional view in the vicinity of the spraying part 301.
[0122] この構成では、冷蔵庫の扉 400A側から庫内仕切り奥面に向けて、貯水タンク 425 Bと噴霧部 301とが設けられてミスト噴霧装置 302Aを構成している。ミスト噴霧装置 3 02Aは野菜室 114の天面を構成する仕切板 111Bに固定されて 、る。貯水タンク 42 5Bの底面は傾斜しており、奥面底部には、給水調整部 444が設けられている。  [0122] In this configuration, a water storage tank 425B and a spray unit 301 are provided from the refrigerator door 400A side toward the interior partition inner surface to constitute a mist spraying device 302A. The mist spraying device 302A is fixed to a partition plate 111B constituting the top of the vegetable compartment 114. The bottom surface of the water storage tank 425B is inclined, and a water supply adjustment unit 444 is provided at the bottom of the back surface.
[0123] 以上のように構成されたミスト噴霧装置の動作 ·作用を説明する。貯水タンク 425B は人が着脱しやす!/、ように野菜室 114の扉 400A側、すなわち前面側に設置され、 水道水や結露水などが蓄えられている。あるいは、貯水タンク 425Bに様々な機能水 を注入してもよい。機能水はたとえば酸性水、アルカリ水、またはビタミンなどを含ん だ栄養水などである。このような機能水を野菜室 114内に噴霧することにより、野菜室 114に様々な新 、機能が追加される。このようにすれば噴霧部 301は様々な機能 水を噴霧することができる。  [0123] The operation and action of the mist spraying device configured as described above will be described. The water storage tank 425B is installed on the door 400A side of the vegetable compartment 114, that is, on the front side, so that people can easily attach and detach it, and stores tap water and condensed water. Alternatively, various functional waters may be injected into the water storage tank 425B. Functional water is, for example, acidic water, alkaline water, or nutrient water containing vitamins. By spraying such functional water into the vegetable compartment 114, various new functions are added to the vegetable compartment 114. In this way, the spray unit 301 can spray various functional water.
[0124] 貯水タンク 425Bの底面は冷蔵庫奥面に向けて傾斜しており、注水された水は、奥 側に流れるように工夫されている。また、この奥側底面には給水調整部 444が設けら れている。給水調整部 444は例えば開閉弁力もなる。給水調整部 444は、開の時の み噴霧部 301に給水する。  [0124] The bottom surface of the water storage tank 425B is inclined toward the back of the refrigerator, and the injected water is devised to flow to the back. In addition, a water supply adjustment section 444 is provided on the bottom surface on the back side. The water supply adjustment unit 444 also has an open / close valve force, for example. The water supply adjustment unit 444 supplies water to the spray unit 301 only when it is open.
[0125] 以上のように、図 17の構成では、貯水タンク 425Bが扉 400A側に、噴霧部 301が 貯水タンク 425Bより奥側に設けられているので、使い勝手が向上する。貯水タンク 4 25Bの底面が噴霧部 301側に傾斜しているので、貯水タンク 425Bの水が効率よく利 用される。また、給水調整部 444により噴霧部 301に対して適切な量の水が供給され る。  As described above, in the configuration of FIG. 17, the water storage tank 425B is provided on the door 400A side, and the spraying portion 301 is provided on the back side of the water storage tank 425B. Water tank 4 Since the bottom surface of 25B is inclined toward the spraying part 301, the water in the water tank 425B is used efficiently. In addition, an appropriate amount of water is supplied to the spray unit 301 by the water supply adjustment unit 444.
[0126] なお、貯水タンク 425Bは仕切板 111Bに固定されている力 着脱式でもよい。これ により、水の交換、追加、清掃が容易となり使い勝手が向上する。  [0126] It should be noted that the water storage tank 425B may be a detachable force fixed to the partition plate 111B. This facilitates the exchange, addition and cleaning of water and improves usability.
[0127] 図 18はミスト噴霧装置 302の農薬除去効果とミスト粒子径との関係を示す図である 。この実験においても、実施の形態 3と同様に、マラチオンを約 3ppm付着させたミニ トマト 10個を用いる。そしてミスト噴霧装置 302で発生させたミストを 12時間連続噴霧 処理した後、ミニトマトの残留マラチオン濃度を GCにて測定し、除去率を算出する。 なお、このときの噴霧量は 0. 03gZh'Lである。ミストの粒子径は前述のように、圧電 素子 311の振動数とホーン 310の寸法とにより決定される。 FIG. 18 is a diagram showing the relationship between the pesticide removal effect of the mist spraying device 302 and the mist particle diameter. In this experiment, as in Embodiment 3, ten cherry tomatoes with about 3 ppm of malathion attached are used. The mist generated by the mist spraying device 302 is sprayed continuously for 12 hours. After treatment, the residual malathion concentration of cherry tomatoes is measured by GC, and the removal rate is calculated. The spray amount at this time is 0.03 gZh'L. As described above, the particle diameter of the mist is determined by the frequency of the piezoelectric element 311 and the dimension of the horn 310.
[0128] 図 18に示されているように、マラチオン除去率を 50%程度とするためには、粒子径 を 20 m以下に制御する必要がある。また、マラチオン除去率を 70%程度とするた めには、粒子径を 0. 5 m以下に制御する必要がある。これは、一般的な野菜の凹 凸が 20〜30 μ mであることから、 20 μ m以上では野菜の微細な凹部にミストが入り 込みにくくなり、有害物質をミスト粒子に付着させるもしくはミスト粒子内に取り込むみ にくくなるためと考えられる。また、粒子径 0. 5 μ mのミストの方が、粒子径 20 μ mの ミストよりも拡散性が高いことから、ミストと野菜表面の農薬との接触頻度も高くなり、農 薬除去率も高くなると考えられる。  [0128] As shown in Fig. 18, in order to achieve a malathion removal rate of about 50%, the particle size must be controlled to 20 m or less. In addition, in order to achieve a malathion removal rate of about 70%, it is necessary to control the particle size to 0.5 m or less. This is because the general concave / convex shape of vegetables is 20-30 μm, and if it is 20 μm or more, it becomes difficult for mist to enter the fine concave portions of vegetables, causing harmful substances to adhere to the mist particles or mist particles. It is thought that it becomes difficult to take it in. In addition, since mist with a particle size of 0.5 μm is more diffusive than mist with a particle size of 20 μm, the frequency of contact between the mist and agricultural chemicals on the vegetable surface increases, and the removal rate of agricultural chemicals is also high. It is thought to be higher.
[0129] 以上の結果より、超音波方式にてミストを発生するミスト噴霧装置での農薬除去率 5 0%以上の性能を有するミスト粒子径は 20 m以下であり、また農薬除去率 70%以 上の性能を有するミスト粒子径は 0. 5 μ m以下である。  [0129] Based on the above results, the mist particle size with a performance of 50% or more in the mist spraying apparatus that generates mist by the ultrasonic method is 20 m or less, and the pesticide removal rate is 70% or less. The mist particle size with the above performance is 0.5 μm or less.
[0130] なおミスト粒子径を 0. 5 m未満にしてさらに小さくすれば、より農薬除去率が向上 すると考えられる。噴霧部 301では高周波数の振動エネルギーを用いて水滴を細粒 化する。そのため超音波霧化方式の噴霧部 301では、ミストの粒子径を 0. 未 満まで小さくするために振動周波数を高く必要がある。し力しながら振動周波数を高 くするほど、振動回数が多くなり現状の超音波霧化方式を採用した噴霧部 301の耐 久年数が短くなる傾向がある。冷蔵庫は、家電製品の中でも特に使用年数が長ぐ 平均使用年数は 10年程度であるので、特に長期間の耐久性が要求される。そのた め、現段階の技術において超音波霧化方式を用いてミスト発生させる場合には、ミス ト粒子径の下限値を 0. 5 mとすることが好ましい。  [0130] If the mist particle size is made smaller than 0.5 m, the pesticide removal rate is considered to be further improved. In the spraying part 301, water droplets are made fine by using high-frequency vibration energy. Therefore, in the ultrasonic atomizing spray unit 301, it is necessary to increase the vibration frequency in order to reduce the mist particle size to less than 0. The higher the vibration frequency, the greater the number of vibrations, and the longer the service life of the spraying part 301 that employs the current ultrasonic atomization method tends to be. Refrigerators have a long service life among household electrical appliances, and the average service life is about 10 years, so long-term durability is required. Therefore, when the mist is generated using the ultrasonic atomization method in the current technology, the lower limit value of the mist particle diameter is preferably set to 0.5 m.
[0131] 以上のように、超音波霧化方式の噴霧部 301を用いたミスト粒子径は 0. 5 /z m以上 20 μ m以下の範囲とすることが好ましい。ただし、将来的に 0. 5 μ mよりも小さい粒 子径のミストを超音波霧化方式を用いて発生させた場合でも、長期の信頼性を確保 することが可能な超音波霧化方式であれば、さらにこのミスト粒子径の下限値を例え ば 1Z10の 0. 05 m程度まで拡大することが可能である。 [0132] 図 19はミスト噴霧装置 302の農薬除去効果とミスト噴霧量との関係を示す図である 。本実験では粒子径 10 mのミストを 70Lの野菜室 114内に噴霧する。噴霧時間は 図 18の実験と同様、 12時間である。また噴霧量は本実験においては噴霧部 301へ の印加電圧を変化させることにより制御する。これ以外に噴霧先端部 310Aの開口面 積を変化させることで、噴霧量の調整を行うことも可能である。 [0131] As described above, it is preferable that the mist particle diameter using the spray unit 301 of the ultrasonic atomization method is in the range of 0.5 / zm to 20 μm. However, even if mist with a particle size smaller than 0.5 μm is generated in the future using the ultrasonic atomization method, the ultrasonic atomization method can ensure long-term reliability. If there is, the lower limit value of the mist particle diameter can be expanded to about 0.05 m of 1Z10. FIG. 19 is a diagram showing the relationship between the pesticide removal effect of the mist spraying device 302 and the amount of mist spraying. In this experiment, a mist with a particle size of 10 m is sprayed into a vegetable chamber 114 of 70 liters. The spraying time is 12 hours, similar to the experiment in Fig. 18. In this experiment, the spray amount is controlled by changing the voltage applied to the spray section 301. In addition to this, the spray amount can be adjusted by changing the opening area of the spray tip 310A.
[0133] 図 19より明らかなように、農薬であるマラチオンの除去効果はミスト噴霧量が多いほ ど高くなる。マラチオン除去率を 50%以上とするためには、噴霧量は 0. 014g/h-L 以上に制御する必要がある。一方、噴霧量が 0. 14gZh'Lを超えると農薬除去効果 はあるものの野菜表面に余分な水分が付着し、水腐れを生じ、野菜の品質が低下す る。したがって超音波霧化方式の噴霧部 301を用いたミスト噴霧量は 0. 014g/h-L 以上 0. 14g/h'L以下の範囲とすることが好ましい。ただし、噴霧量が 0. 14g/h- Lを超えても、野菜を振動させて、余分な水分を落とさせるなど、水腐れを防止できれ ば噴霧量を増加させてもよい。その場合でも野菜の品質維持の観点から、噴霧量は 0. 5gZh'L以下とすることが好ましい。  [0133] As is clear from Fig. 19, the removal effect of malathion, a pesticide, increases as the amount of mist spray increases. In order to achieve a malathion removal rate of 50% or more, the spraying amount must be controlled to 0.001 g / h-L or more. On the other hand, if the spray amount exceeds 0.14 gZh'L, although there is a pesticide-removing effect, excess moisture will adhere to the vegetable surface, causing water rot and reducing the quality of the vegetable. Therefore, it is preferable that the amount of mist sprayed using the spray section 301 of the ultrasonic atomization method is in the range of not less than 0.014 g / h-L and not more than 0.14 g / h′L. However, even if the spraying amount exceeds 0.14 g / h-L, the spraying amount may be increased if water rot can be prevented by shaking the vegetables and removing excess water. Even in that case, from the viewpoint of maintaining the quality of vegetables, the spray amount is preferably 0.5 gZh'L or less.
[0134] 以上のように、本実施の形態における、冷却装置を有する収納庫である冷蔵庫は、 断熱箱体 110を断熱区画して形成された貯蔵室である野菜室 114を有する。またこ の冷蔵庫は、液体のミストを噴霧する超音波霧化方式の噴霧部 301を含むミスト噴霧 装置 302を有する。そして野菜室 114を有する本実施の形態による冷蔵庫では、比 較的低温である各貯蔵室へ低温冷気を搬送するため風路 229を利用している。そし て風路 229側力もの熱伝導により、噴霧部 301に水を供給するための水収集板 321 が冷却される。水収集板 321が露点以下に温度調整されることにより、空気中の水分 を確実に生成し、給水部 303などによりホーン 310の噴霧先端部 310Aに水が供給 される。  [0134] As described above, the refrigerator as the storage having the cooling device according to the present embodiment has the vegetable compartment 114 as a storage compartment formed by insulating the heat insulation box 110. The refrigerator also includes a mist spraying device 302 including an ultrasonic atomizing spray unit 301 that sprays liquid mist. In the refrigerator according to the present embodiment having the vegetable room 114, the air path 229 is used to convey the low temperature cold air to each storage room having a relatively low temperature. And the water collecting plate 321 for supplying water to the spray part 301 is cooled by the heat conduction of the air passage 229 side force. By adjusting the temperature of the water collecting plate 321 below the dew point, moisture in the air is reliably generated, and water is supplied to the spray tip 310A of the horn 310 by the water supply unit 303 or the like.
[0135] また、噴霧部 301が超音波霧化方式なため、水の供給が十分であれば、噴霧量は 十分確保される。そのため ONZOFF運転による噴霧量の調整が可能となり、さらに 、実使用での運転時間が短縮され、構成部品の寿命信頼性が向上する。そして農作 物表面に付着する農薬やワックスなどを極めて少ない水量で浮き上がらせ除去でき るので水が節約される。 [0136] また、噴霧部 301が超音波霧化方式なため、ミスト発生時にオゾンが発生せず、 O Hラジカルのみが発生する。そのため、特にオゾンに対する対策行わなくてもよぐ部 品構成と制御内容とが簡素になる。オゾンを用いる場合は、本実施の形態のようにォ ゾン発生体 323を別途設ければょ ヽ。 [0135] Further, since the spray unit 301 is an ultrasonic atomization system, if the supply of water is sufficient, the spray amount is sufficiently secured. Therefore, the amount of spray can be adjusted by ONZOFF operation. Furthermore, the operation time in actual use is shortened, and the lifetime reliability of components is improved. In addition, pesticides and wax adhering to the surface of agricultural products can be lifted and removed with a very small amount of water, saving water. [0136] Further, since the spray unit 301 is an ultrasonic atomization system, ozone is not generated when mist is generated, and only OH radicals are generated. This simplifies the component configuration and control details that do not require any special measures against ozone. If ozone is used, an ozone generator 323 should be provided separately as in this embodiment.
[0137] また、噴霧部 301に液体を供給する貯水タンク 425Bを設けることにより噴霧部 301 は様々な機能水を噴霧することができる。機能水はたとえば酸性水、アルカリ水、ま たはビタミンなどを含んだ栄養水などである。このような機能水を野菜室 114内に噴 霧することにより、野菜室 114に様々な新しい機能が追加される。  [0137] Further, by providing a water storage tank 425B for supplying liquid to the spray unit 301, the spray unit 301 can spray various functional water. Functional water is, for example, acidic water, alkaline water, or nutrient water containing vitamins. By spraying such functional water into the vegetable compartment 114, various new functions are added to the vegetable compartment 114.
[0138] また、噴霧されるミスト粒子径を 0. 5 m以上 20 m以下とすることにより、農作物 表面の微細な凹部にミストが効率よく進入する。そのため、細部にわたるまで、農薬 等の有害物質が除去される。  [0138] In addition, by setting the sprayed mist particle size to 0.5 m or more and 20 m or less, the mist efficiently enters the fine recesses on the surface of the crop. Therefore, harmful substances such as pesticides are removed to the smallest detail.
[0139] また、ミスト噴霧量を 0. 014gZh'L以上 0. 14gZh'L以下とすることにより、有害 物質が効率的に除去されるとともに、農作物の水分が保持される。また、農作物の水 腐れも防止される。  [0139] Further, by setting the amount of mist spray to not less than 0.014 gZh'L and not more than 0.14 gZh'L, harmful substances are efficiently removed and moisture of the crop is retained. Also, water rot of crops is prevented.
[0140] また、本実施の形態では噴霧するミスト中に放電によって発生するオゾンガスを溶 存させるが、貯留水をオゾンあるいは反応性に富む機能水としても同様の効果が得 られる。  [0140] In the present embodiment, ozone gas generated by discharge is dissolved in the sprayed mist, but the same effect can be obtained even if the stored water is ozone or functional water rich in reactivity.
[0141] また、本実施の形態においては、超音波霧化方式の噴霧部 301を用いているので 、ミストを微粒子化する際に高電圧を必要としない。そのため、冷却装置の冷媒にイソ ブタンやプロパンなどの可燃性冷媒を用いた場合で、万が一冷却装置から冷媒が漏 れた場合にも安全性が保たれ、冷却装置の構成部品の配置に対して特別な工夫を 行う必要がない。また、防爆対応などの特別な対応も必要がない。よって可燃性冷媒 を用いた冷蔵庫に、振動エネルギーによってミストを生成するタイプの噴霧部 301を 適用することは、家庭用の冷蔵庫における安全性を損なわない。  [0141] Further, in the present embodiment, since the spray unit 301 of the ultrasonic atomization method is used, a high voltage is not required when atomizing the mist. Therefore, when a flammable refrigerant such as isobutane or propane is used as the refrigerant for the cooling device, safety is maintained even if the refrigerant leaks from the cooling device. There is no need to devise special measures. There is no need for special measures such as explosion protection. Therefore, applying the spray unit 301 of a type that generates mist by vibration energy to a refrigerator using a flammable refrigerant does not impair the safety of a household refrigerator.
[0142] また、本実施の形態においては、水収集板 321を野菜室 114内に設けることにより 、外部力ゝら水を供給しなくてもよい。さらに加熱部 328や送風部 317を設けることによ り結露量が調整できる。同時に、水収集板 321の温度を変化させることにより庫内湿 度も調整できる。 [0143] また、噴霧部 301は、略円錐状に形成されたホーン 310と、圧電素子 311とを有す る。圧電素子 311はホーン 310の一端面に接着されて一体化されている。このような 超音波霧化方式の噴霧部 301を含むミスト噴霧装置 302は小型であり、かつ低入力 で作動する。したがって野菜室 114内に配置することが可能である。近年主流の冷 蔵庫では、外形寸法が従来のままで庫内容量がより大きく設計されている。このよう にして使用者の使い勝手が向上している。ホーン 310は小型なため、このような冷蔵 庫にも適用でき、ミスト噴霧装置 302が庫内に延出することなく配置できる。そのため 、庫内容量の減少を最小限にしながら、低入力かつ高出力のミスト噴霧装置 302を 設けることができる。これにより、省エネを図りつつ、冷蔵庫の使い勝手を向上させる ことができる。またミスト噴霧装置 302の設置制約が少なぐ冷蔵庫の設計に自由度 を持たせることができる。また、ミスト噴霧装置 302は低入力であるため消費電力の増 加が抑えられるとともに、制御基板が小型でかつ低コストになる。 [0142] In the present embodiment, by providing the water collecting plate 321 in the vegetable compartment 114, it is not necessary to supply water from an external force. Furthermore, the amount of condensation can be adjusted by providing the heating unit 328 and the air blowing unit 317. At the same time, the internal humidity can be adjusted by changing the temperature of the water collecting plate 321. [0143] The spray unit 301 includes a horn 310 formed in a substantially conical shape and a piezoelectric element 311. The piezoelectric element 311 is bonded to and integrated with one end surface of the horn 310. The mist spraying device 302 including such an ultrasonic atomizing spray unit 301 is small in size and operates with a low input. Therefore, it can be placed in the vegetable compartment 114. In recent years, mainstream refrigerators have been designed with a larger internal capacity while maintaining the same external dimensions. In this way, user convenience is improved. Since the horn 310 is small, it can be applied to such a refrigerator, and the mist spraying device 302 can be arranged without extending into the refrigerator. Therefore, the low-input and high-output mist spraying device 302 can be provided while minimizing the decrease in the internal volume. As a result, it is possible to improve the usability of the refrigerator while saving energy. Further, it is possible to give a degree of freedom to the design of the refrigerator in which the installation restrictions of the mist spraying device 302 are few. In addition, since the mist spraying device 302 has a low input, an increase in power consumption can be suppressed, and the control board can be reduced in size and cost.
[0144] また、ミスト噴霧装置 302自体の発熱量が抑制されるので、野菜室 114内の温度上 昇が抑制される。また欠水が生じた場合の異常発熱も抑制されるので、噴霧部 301 は長寿命になり、信頼性が向上する。さらに冷蔵庫内は低温雰囲気下であるため、 噴霧部 301の温度上昇が抑制される。その結果からも、噴霧部 301は長寿命になる  [0144] Further, since the heat generation amount of the mist spraying device 302 itself is suppressed, the temperature rise in the vegetable compartment 114 is suppressed. In addition, since abnormal heat generation in the event of water shortage is also suppressed, the spray unit 301 has a long life and improves reliability. Furthermore, since the inside of a refrigerator is a low temperature atmosphere, the temperature rise of the spray part 301 is suppressed. As a result, the spraying part 301 has a long life.
[0145] また、給水部 303を設けることにより、効率的にかつ安定してホーン 310の先端に 水が供給される。そのため、噴霧部 301は常時安定して噴霧し、野菜室 114内にはミ ストが噴霧される。また、安定してホーン 310の先端に水が供給されることで、ホーン 310の先端での欠水が防止され、噴霧部 301は長寿命になり、信頼性が向上する。 [0145] Further, by providing the water supply unit 303, water is efficiently and stably supplied to the tip of the horn 310. Therefore, the spray unit 301 always sprays stably, and mist is sprayed in the vegetable compartment 114. In addition, since water is stably supplied to the tip of the horn 310, water shortage at the tip of the horn 310 is prevented, and the spray unit 301 has a long life and reliability is improved.
[0146] また、給水部 303は、供給部 304の近傍に設けられている。そのため、供給部 304 力も給水部 303によりホーン 310の先端に水が補給される。これにより、効率よく野菜 室 114内に噴霧される。また、供給部 304と給水部 303とが近傍に位置しているので 、供給部 304からホーン 310先端までの水の経路がコンパクトに、かつ簡素になり、 設計自由度が向上する。  Moreover, the water supply unit 303 is provided in the vicinity of the supply unit 304. Therefore, water is supplied to the tip of the horn 310 by the water supply unit 303 as well as the supply unit 304 force. As a result, the vegetable compartment 114 is efficiently sprayed. In addition, since the supply unit 304 and the water supply unit 303 are located in the vicinity, the water path from the supply unit 304 to the tip of the horn 310 becomes compact and simple, and the degree of freedom in design is improved.
[0147] また、供給部 304は、水を収集するために野菜室 114内の空気中水分を結露させ る水収集板 321を有する。結露により生じた結露水は供給部 30にて集められ、集め られた結露水は給水部 303によりホーン 310の先端に常時安定して供給される。そ のため、効率よく貯蔵空間にミストが噴霧される。 [0147] Further, the supply unit 304 has a water collecting plate 321 that condenses moisture in the air in the vegetable compartment 114 in order to collect water. Condensed water generated by condensation is collected at the supply unit 30 and collected. The condensed water thus supplied is constantly and stably supplied to the tip of the horn 310 by the water supply unit 303. Therefore, mist is efficiently sprayed in the storage space.
[0148] また、ホーン 310は高熱伝導性の材質で構成されているので、ホーン 310の先端 部での発熱がホーン 310全体に拡散する。また冷蔵庫内は低温雰囲気下であるた め、噴霧部 301の温度上昇が抑制される。その結果、噴霧部 301は長寿命になり信 頼性が向上する。 [0148] Further, since the horn 310 is made of a material having high thermal conductivity, heat generated at the tip of the horn 310 is diffused throughout the horn 310. Moreover, since the inside of a refrigerator is a low temperature atmosphere, the temperature rise of the spray part 301 is suppressed. As a result, the spray unit 301 has a long life and reliability is improved.
[0149] また、ホーン 310の先端部が振動の腹部近傍に、圧電素子 311の接着された面側 に設けられたフランジ部 312が振動の節部近傍に配置されている。そしてフランジ部 312と直接的または間接的に冷蔵庫本体とが接続されている。そのため、振動の振 幅が大きい腹部、すなわちホーン 310の先端部でホーン先端に補給された液体を効 率よく霧化させることができる。一方、振動の節部、すなわちフランジ部 312では振幅 が小さいため、直接的または間接的に接続された冷蔵庫への振動伝達が低減される  Further, the tip of the horn 310 is disposed in the vicinity of the vibration abdomen, and the flange portion 312 provided on the surface to which the piezoelectric element 311 is bonded is disposed in the vicinity of the vibration node. And the flange part 312 and the refrigerator main body are connected directly or indirectly. Therefore, the liquid replenished to the tip of the horn at the abdomen having a large vibration amplitude, that is, the tip of the horn 310 can be efficiently atomized. On the other hand, vibration transmission to the refrigerator connected directly or indirectly is reduced because the amplitude of the vibration node, that is, the flange 312 is small.
[0150] また、ホーン 310の噴霧先端部 310Aとフランジ部 312との間の長さを 1Z4波長と するモードで、圧電素子 311が振動する。これにより、ミストを発生する噴霧先端部 3 10Aとフランジ部 312との間に、振動の腹部と節部とが 1つとなる。このように振動の 腹部と節部とが複数存在しないため、ホーン 310の小型化が可能である。またエネル ギ一の分散や減衰が低減されるため、効率が向上する。また、小型のホーン 310の 設置制約は少なぐ設計自由度が得られるとともに、貯蔵空間が大きくなる。具体的 には、ホーン 310の長さを lmmから 20mmとすることができる。このように、ホーン 31 0を小さくすれば、冷蔵庫の設計自由度を得られ、貯蔵空間が大きくなる。 [0150] In addition, the piezoelectric element 311 vibrates in a mode in which the length between the spray tip 310A of the horn 310 and the flange 312 is 1Z4 wavelength. As a result, there is one vibration abdomen and node between the spray tip 310 A that generates mist and the flange 312. As described above, since there are not a plurality of vibration abdominal portions and node portions, the horn 310 can be downsized. It also improves efficiency because energy dispersion and attenuation are reduced. In addition, the installation restrictions of the small horn 310 provide a small degree of design freedom and increase the storage space. Specifically, the length of the horn 310 can be set to 1 mm to 20 mm. Thus, if the horn 310 is made small, the design freedom of the refrigerator can be obtained and the storage space becomes large.
[0151] また、ミスト噴霧装置 302周辺にカバー部材 306を設けることにより、使用者力 スト 噴霧装置 302の内部に直接触れることがない。そのため、安全性が向上する。  [0151] Further, by providing the cover member 306 around the mist spraying device 302, the user-powered spraying device 302 is not directly touched. Therefore, safety is improved.
[0152] なお、噴霧部 301におけるホーン 310は略円錐状に形成されている例を説明した 力 これに限定されない。先端での振動の振幅を増幅させる形状であれば同様の効 果が得られる。例えば、圧電素子 311側力 先端に向け先細り形状として、ホーンの 先端部にお 、て略長方形形状にすることも可能である。この構成ではミストを噴霧さ せる面積が円形状に比べて大きくなるので、噴霧範囲が拡大され拡散性が向上する [0153] (実施の形態 5) [0152] Note that the horn 310 in the spray unit 301 has been described as having an approximately conical shape. However, the present invention is not limited to this. A similar effect can be obtained if the shape amplifies the amplitude of vibration at the tip. For example, the piezo-electric element 311 side force can be tapered toward the front end, and the horn end can be formed into a substantially rectangular shape. In this configuration, the area over which the mist is sprayed is larger than the circular shape, so the spray range is expanded and diffusibility is improved. [Embodiment 5]
本発明の実施の形態 5による冷蔵庫では、以上説明した実施の形態 3、実施の形 態 4における各ミスト噴霧装置 120、 302を組み合わせて用いる。このような複合型の ミスト噴霧装置による農薬除去効果と、野菜室 114に貯蔵される農作物の保鮮効果、 野菜室 114内の壁面の防汚効果について、ミストの粒子径と噴霧量との観点力も説 明する。  In the refrigerator according to the fifth embodiment of the present invention, the mist spraying devices 120 and 302 in the third and fourth embodiments described above are used in combination. With regard to the effect of removing agricultural chemicals by such a combined mist spraying device, the effect of keeping agricultural products stored in the vegetable compartment 114, and the antifouling effect of the wall in the vegetable compartment 114, the viewpoint power of the mist particle size and spray amount is also explain.
[0154] 図 20は本実施の形態におけるミストの粒子径と噴霧量と、それぞれの効果との相 関関係を示す図である。図 20は、 70Lの野菜室を 5°Cの雰囲気温度に保った上で、 静電霧化方式と超音波方式でミストの粒子径と噴霧量を可変させてそれぞれの効果 が現れる範囲を示している。実施の形態 3、 4によるミスト噴霧装置 120、 302の能力 を調整することで、両者の粒子径と噴霧量との適正数値がオーバーラップしたような 範囲がカバーされる。図 20により、実施の形態 3, 4によるミストの粒子径と噴霧量と、 それぞれの効果とには、それぞれ適正な範囲があり、互いにずれていることがわかる  FIG. 20 is a diagram showing the correlation between the mist particle size and the spray amount and the respective effects in the present embodiment. Figure 20 shows the range in which each effect appears when the 70 L vegetable room is maintained at an ambient temperature of 5 ° C, and the mist particle size and spray amount are varied by the electrostatic atomization method and the ultrasonic method. ing. By adjusting the capabilities of the mist spraying devices 120 and 302 according to the third and fourth embodiments, a range where the appropriate values of the particle diameter and the spray amount of both of them overlap each other is covered. From FIG. 20, it can be seen that there is an appropriate range for the mist particle size and the spray amount according to Embodiments 3 and 4 and the respective effects, which are shifted from each other.
[0155] まず、野菜の蘇生にっ 、て説明する。野菜の水分含有量を高めるためには、気孔 が最大に開 、た状態での気孔径以下の粒子径になって 、な 、と、噴霧するミストが 野菜の内部に物理的に入りこむことができない。気孔は野菜の表面にあり水分の調 節を行っている。また、実験の結果によると、光を照射しない場合、ミストの粒子径が 細胞間隙幅以下であれば水分含有量復元率が高くなる。すなわち、ミストが細胞間 隙力 活発に侵入し、野菜の水分含有量復元効果が大きくなる。逆にミスト径が小さ くなりすぎると、ミストと気孔との接触頻度が少なくなり、野菜の蘇生率が低くなる。 [0155] First, I will explain the resuscitation of vegetables. In order to increase the moisture content of vegetables, the pores are maximally open and the particle size is equal to or smaller than the pore size in the state that the sprayed mist cannot physically enter the vegetable interior. . The pores are on the surface of the vegetables and regulate the water content. In addition, according to the results of experiments, when light is not irradiated, the moisture content recovery rate is high if the mist particle size is equal to or smaller than the cell gap width. That is, the mist actively invades the intercellular gap force, and the moisture content restoration effect of the vegetable is increased. On the other hand, if the mist diameter becomes too small, the contact frequency between the mist and the pores decreases, and the resuscitation rate of vegetables decreases.
[0156] 一方、ミストの噴霧量は、野菜室 114内の相対湿度を野菜内部の湿度と平衡状態 に保てる量以上とする必要がある。ただし、噴霧量が多すぎると野菜が水腐れなどに より品質が低下する。噴霧量はこのような状況を生じない量以下とする必要がある。  [0156] On the other hand, the amount of mist sprayed needs to be equal to or greater than the amount by which the relative humidity in the vegetable compartment 114 can be kept in equilibrium with the humidity inside the vegetable. However, if the spray amount is too large, the quality of the vegetables will deteriorate due to water rot. The amount of spray needs to be less than the amount that does not cause such a situation.
[0157] また、静電負荷されたミストと野菜とには電位差が生じ、ミストの野菜付着率が高くな る。そのため同一粒子径の場合、静電負荷したミストを多く含む方が、少ない噴霧量 でも野菜の蘇生率が高い。 [0158] 次に野菜表面の農薬等の有害物質の除去について説明する。なお本実験にあた つては、一般的な野菜の農薬であるマラチオンを野菜表面に付着させオゾンミスト雰 囲気の中に 12時間置く。一方、同量のマラチオンを野菜表面に付着させ 12時間ミス ト雰囲気でない通常の野菜室に置く。これらを、それぞれ笊に入れて 10秒間流水洗 浄を行 、、マラチオンの除去率力 Sミスト雰囲気でな 、通常の野菜室に置!、たものに 比べて 50%以上のものを適正範囲として表示して!/、る。 [0157] Further, a potential difference is generated between the mist and the vegetable that are electrostatically loaded, and the vegetable adhesion rate of the mist increases. Therefore, in the case of the same particle size, the resuscitation rate of vegetables is higher when the amount of spray is small if the amount of electrostatically loaded mist is large. [0158] Next, the removal of harmful substances such as agricultural chemicals on the vegetable surface will be described. In this experiment, malathion, a general vegetable pesticide, is attached to the vegetable surface and placed in an ozone mist atmosphere for 12 hours. On the other hand, the same amount of malathion is attached to the vegetable surface and placed in a normal vegetable room that is not misted for 12 hours. Each of these is put in a bowl and washed with running water for 10 seconds, and the removal rate of malathion S is not in a mist atmosphere, placed in a normal vegetable room! More than 50% of the proper range Display!
[0159] ミスト粒子径については、野菜の凹凸幅以下で、かつ拡散性のある微細粒子である 場合に農薬除去効果が高い。粒子径が小さすぎると、農薬との接触頻度が少なくなり 、除去率が低くなる。一方、野菜の蘇生と同様、静電負荷されたミストと野菜との接触 頻度は高いため、静電負荷されたミストの割合が多いほど少量の噴霧量で除去効果 がある。またこの場合、野菜の蘇生のように野菜の内部までミストを供給する必要はな ぐミストの供給は野菜表面に限られる。そのため、必要な噴霧量も野菜蘇生より少な い。また同一量噴霧した場合、粒子径による農薬除去効果の差はほとんどない。除 去効果の大きさは噴霧量よりもミスト中のオゾンや OHラジカル等の分解能力を有す る物質の量に左右される。静電霧化方式にて発生されたミストは、微細になるほどラ ジカル個数は増える。そのため静電負荷したミストを多く含む方が、農薬除去効果も 高くなる。  [0159] The mist particle size is not more than the uneven width of vegetables, and the pesticidal effect is high when the particles are diffusible fine particles. If the particle size is too small, the contact frequency with the pesticide will be low and the removal rate will be low. On the other hand, like vegetable resuscitation, the frequency of contact between electrostatically loaded mist and vegetables is high, so the higher the proportion of electrostatically loaded mist, the smaller the spraying effect. In this case, it is not necessary to supply the mist to the inside of the vegetable as in the resuscitation of the vegetable. The supply of the mist is limited to the vegetable surface. Therefore, the amount of spray required is less than vegetable resuscitation. Moreover, when spraying the same amount, there is almost no difference in the effect of removing agricultural chemicals depending on the particle size. The magnitude of the removal effect depends on the amount of substances that have the ability to decompose, such as ozone and OH radicals, in the mist rather than the spray amount. As the mist generated by the electrostatic atomization system becomes finer, the number of radicals increases. Therefore, the effect of removing agricultural chemicals is higher when the mist containing a large amount of electrostatic load is included.
[0160] 次に冷蔵庫庫内の防汚効果について説明する。冷蔵庫の庫内の壁面にミストの水 粒子が満遍なく付着すると、庫内の壁面に直接汚れ物質が付着することが防止され る。冷蔵庫庫内の防汚効果とは、このような効果を意味する。このように汚れ物質が 水粒子を介して庫内の壁面に付着している場合には、例えば庫内壁面を拭くだけで 、簡単に汚れを落とすことができ、冷蔵庫内の掃除が非常に簡単となる。  [0160] Next, the antifouling effect in the refrigerator will be described. If mist water particles evenly adhere to the wall surface of the refrigerator, it is possible to prevent dirt from adhering directly to the wall surface of the refrigerator. The antifouling effect in the refrigerator cabinet means such an effect. In this way, when the dirt substance adheres to the wall surface in the warehouse via water particles, for example, it is possible to easily remove the dirt simply by wiping the wall surface in the warehouse, and cleaning the refrigerator is very easy. It becomes.
[0161] 防汚効果の確認については、各粒子径で所定の噴霧量のミストを充満させた 70L の野菜室 114内において、一般的な冷蔵庫内の榭脂である ABS榭脂に汚れ物質を 吹きつける。その後、一定時間後に汚れをふき取った際に、汚れ物質が残らない範 囲を適正範囲としている。  [0161] Regarding the confirmation of the antifouling effect, in a 70L vegetable room 114 filled with a mist of a predetermined spray amount at each particle size, dirt substances were added to ABS fat, which is a common fat in a refrigerator. Spray. After that, when the dirt is wiped off after a certain period of time, the range where no dirt remains is set as the appropriate range.
[0162] 図 20に示すように、庫内榭脂の凹凸幅以下の粒子径で、かつ拡散性のある微細粒 子は防汚効果が高い。また、庫内壁面にミストが付着した際に水滴として目に見える 粒子径では結露を生じ、庫食品が品質劣化を起こす可能性がある。そのため、噴霧 するミストの粒子径は壁面に付着したミストが目に見えないレベルの水滴となる粒子 径である必要がある。また、噴霧量は野菜蘇生や農薬除去の噴霧量よりも多い。これ は、防汚効果を発揮するためには、壁面に満遍なく水粒子を付着する必要があり、 多量のミストを噴霧する必要があるためである。ミストを静電霧化方式にて発生させた 場合、農薬等の除去効果と同様、粒子径が小さいほど、酸ィ匕分解力の高いラジカル 個数が多くなる。そのためミストの酸ィ匕分解能力が高くなるとともに、汚れとの接触頻 度が上がり、付着する汚れの分解効果が高くなると考えられる。しかし、粒子径が小さ すぎるとミストの壁面到達率が低下し、防汚効果が低くなる。 [0162] As shown in FIG. 20, fine particles having a particle diameter equal to or smaller than the uneven width of the internal greaves and having diffusibility have a high antifouling effect. Also visible as water droplets when mist adheres to the inner wall Condensation may occur at the particle size, and the food quality may deteriorate. For this reason, the particle diameter of the mist to be sprayed needs to be a particle diameter at which the mist adhering to the wall surface forms water droplets at an invisible level. Moreover, the spraying amount is larger than the spraying amount for vegetable resuscitation and pesticide removal. This is because in order to exert the antifouling effect, it is necessary to uniformly adhere water particles to the wall surface and to spray a large amount of mist. When the mist is generated by the electrostatic atomization method, the number of radicals having a high ability to decompose acid and soot increases as the particle diameter decreases, as in the removal effect of agricultural chemicals. Therefore, it is considered that the ability of mist to decompose acid and soot increases, the frequency of contact with dirt increases, and the effect of decomposing adhering dirt increases. However, if the particle size is too small, the mist wall-arrival rate decreases and the antifouling effect is reduced.
[0163] このようにミストの粒子径と噴霧量との関係によって、冷蔵庫の庫内における様々な 有用な効果が得られる。すなわち、得たい効果が複数実現されるようなミスト噴霧を 行うことで、冷蔵庫の使い勝手がより向上する。  [0163] As described above, various useful effects in the refrigerator can be obtained depending on the relationship between the mist particle size and the spray amount. In other words, the convenience of the refrigerator is further improved by performing mist spraying that achieves multiple desired effects.
[0164] 次に、このように複合型のミスト噴霧装置を用いた場合のミスト粒子径の適切な範囲 について説明する。図 21Aは本実施の形態における農薬除去効果とミストの水粒子 径との関係を示す図である。なおこの実験においても、実施の形態 3と同様に、マラ チオンを約 3ppm付着させたミニトマト 10個を用いる。そしてミスト噴霧装置で発生さ せたミストを 24時間連続噴霧処理した後、ミニトマトの残留マラチオン濃度を GCにて 測定し、除去率を算出する。なお、このときの噴霧量は 0. 03gZh'Lである。  [0164] Next, an appropriate range of the mist particle diameter when the composite mist spraying apparatus is used will be described. FIG. 21A is a diagram showing the relationship between the agrochemical removal effect and the water particle diameter of mist in the present embodiment. In this experiment, as in Embodiment 3, ten cherry tomatoes with about 3 ppm of malathion attached were used. After the mist generated by the mist sprayer is continuously sprayed for 24 hours, the residual malathion concentration of cherry tomatoes is measured by GC and the removal rate is calculated. The spray amount at this time is 0.03 gZh'L.
[0165] 図 21Aから明らかなように、農薬除去率を 50%以上とするためには、ミスト粒子径を 0. 003 μ m以上 20 μ m以下とする必要がある。農作物の凹凸幅以下のミスト粒子径 で、かつ拡散性のある微細ミスト粒子が、高い農薬除去効果を有する。そのため、ミス ト粒子径は 20 m以下であることが好ましい。なお粒子径が小さくなりすぎ 0. 003 ^ m未満になると、農薬との接触頻度が少なくなり、除去率が低くなると考えられる。  [0165] As is clear from Fig. 21A, in order to achieve a pesticide removal rate of 50% or more, the mist particle size must be 0.003 μm or more and 20 μm or less. Fine mist particles that have a mist particle size that is less than the width of the unevenness of crops and that are diffusible have a high pesticide removal effect. Therefore, the mist particle size is preferably 20 m or less. If the particle size becomes too small and less than 0.003 ^ m, the contact frequency with the pesticide will decrease and the removal rate will be lowered.
[0166] 次に、このように複合型のミスト噴霧装置を用いた場合のミスト粒子径、噴霧量の適 切な範囲について説明する。図 21Bは本実施の形態における農薬除去効果とミスト 噴霧量との関係を示す図である。  [0166] Next, an appropriate range of the mist particle diameter and the spray amount when the composite mist spraying apparatus is used will be described. FIG. 21B is a diagram showing the relationship between the pesticide removal effect and the amount of mist spray in the present embodiment.
[0167] 図 21Bは本発明の実施の形態 5による農薬除去効果のミストの噴霧量に対する特 性を示した図である。本実験では粒子径 0. 5 mのミストを 70Lの野菜室 114内に 噴霧する。噴霧時間は図 21Aの実験と同様、 12時間である。 FIG. 21B is a diagram showing the pesticide removal effect according to Embodiment 5 of the present invention with respect to the amount of mist sprayed. In this experiment, a mist with a particle size of 0.5 m was placed in a vegetable chamber 114 of 70 liters. Spray. The spraying time is 12 hours as in the experiment of FIG. 21A.
[0168] 図 21Bより明らかなように、農薬であるマラチオンの除去効果はミスト噴霧量が多い ほど高くなる。マラチオン除去率を 50%以上とするためには、噴霧量は 0. 0007g/ h'L以上に制御する必要がある。この下限値は静電霧化方式でミスト噴霧した場合 に得られた値と同じである。すなわち、下限値は静電霧化方式により決定される。  [0168] As is clear from Fig. 21B, the removal effect of the pesticide malathion increases as the amount of mist spray increases. In order to achieve a malathion removal rate of 50% or more, the spray amount must be controlled to 0.0007 g / h'L or more. This lower limit is the same as the value obtained when the mist is sprayed by the electrostatic atomization method. That is, the lower limit is determined by the electrostatic atomization method.
[0169] 一方、噴霧量が 0. 14gZh'Lを超えると農薬除去効果はあるものの野菜表面に余 分な水分が付着し、水腐れを生じ、野菜の品質が低下する。ただし、噴霧量が 0. 14 gZh'Lを超えても、野菜を振動させて、余分な水分を落とさせるなど、水腐れを防止 できれば噴霧量を増加させてもよい。その場合でも野菜の品質維持の観点から、噴 霧量は 0. 5gZh'L以下とすることが好ましい。このように上限値は超音波振動方式 により決定される。  [0169] On the other hand, if the spray amount exceeds 0.14 gZh'L, although there is an effect of removing agricultural chemicals, excessive moisture adheres to the vegetable surface, causing water rot and reducing the quality of the vegetable. However, even if the spraying amount exceeds 0.14 gZh'L, the spraying amount may be increased if water rot can be prevented by shaking the vegetables to remove excess moisture. Even in this case, from the viewpoint of maintaining the quality of the vegetables, the amount of spray is preferably 0.5 gZh'L or less. Thus, the upper limit is determined by the ultrasonic vibration method.
[0170] (実施の形態 6)  [0170] (Embodiment 6)
図 22は本発明の実施の形態 6における冷蔵庫の断面図である。図 23は図 22に示 す冷蔵庫のミスト噴霧装置近傍の縦断面図である。なお、図 23は、ミスト噴霧装置の 制御系のブロック図を兼ねており、電圧印加部 409や制御部 414の位置を示してい るわけではない。  FIG. 22 is a cross-sectional view of the refrigerator in the sixth embodiment of the present invention. FIG. 23 is a longitudinal sectional view of the vicinity of the mist spraying device of the refrigerator shown in FIG. FIG. 23 also serves as a block diagram of the control system of the mist spraying device, and does not show the positions of the voltage application unit 409 and the control unit 414.
[0171] 図 22に示す冷蔵庫が図 5に示す冷蔵庫と異なっている点は、野菜室 114の天面の 仕切板 111Bに設けられた噴霧部 431の構成である。これ以外の基本的な構成は図 5に示す冷蔵庫と同様である。  [0171] The refrigerator shown in FIG. 22 is different from the refrigerator shown in FIG. 5 in the configuration of the spray section 431 provided on the partition plate 111B on the top surface of the vegetable compartment 114. The other basic configuration is the same as that of the refrigerator shown in FIG.
[0172] 図 23に示すようにミスト噴霧装置 404は静電霧化方式の噴霧部 431を有する。噴 霧部 431の外郭は円柱形のホルダー 405で構成されて!、る。ホルダー 405の中には 印加電極 406が設置されている。印加電極 406の周囲は保水材 407で覆われてい る。保水材 407は結露水を保持し、印加電極 406は球状先端まで含水状態となって いる。すなわち、保水材 407はミスト噴霧装置 404を構成する印加電極 406に供給さ れる水を保持する保持部である。保水材 407はホルダー 405の庫内側開口部には 中心に開口を有する板状の対向電極 408が配置されている。対向電極 408は印加 電極 406の先端と一定距離を保つように取り付けられて ヽる。高電圧を発生する電 圧印加部 409の負極側は印加電極 406に、正極側は対向電極 408にそれぞれ電気 的に接続されている。 [0172] As shown in Fig. 23, the mist spraying device 404 has an electrostatic atomizing spray unit 431. The outer part of the spray part 431 consists of a cylindrical holder 405! In the holder 405, an application electrode 406 is installed. The periphery of the application electrode 406 is covered with a water retention material 407. The water retaining material 407 holds condensed water, and the application electrode 406 is in a water-containing state up to the spherical tip. That is, the water retention material 407 is a holding unit that holds water supplied to the application electrode 406 constituting the mist spraying device 404. In the water retaining material 407, a plate-like counter electrode 408 having an opening at the center is disposed in the opening inside the holder 405. The counter electrode 408 is attached so as to maintain a certain distance from the tip of the application electrode 406. The negative electrode side of the voltage application unit 409 for generating a high voltage is electrically connected to the application electrode 406, and the positive electrode side is electrically connected to the counter electrode 408. Connected.
[0173] また、噴霧部 431には、印加電極 406の先端温度を検知するための温度検知部 4 12が配置されている。制御部 414は温度検知部 412からの信号などを受信し、あら カゝじめ決められた演算を行い、構成部品を動作させる。印加電極 406背面には、印 加電極 406の先端温度を制御する加熱部 413が設けられて ヽる。  [0173] Further, the spray unit 431 is provided with a temperature detection unit 412 for detecting the tip temperature of the application electrode 406. The control unit 414 receives a signal from the temperature detection unit 412, performs a predetermined calculation, and operates the components. On the back surface of the application electrode 406, a heating unit 413 for controlling the tip temperature of the application electrode 406 is provided.
[0174] 仕切板 111Bは主に発泡スチロールなどの断熱材で構成されており、その厚さは 3 Omm程度であるが、噴霧部 431の背面では 5mmから 10mmの厚さに構成されてい る。  [0174] The partition plate 111B is mainly made of a heat insulating material such as polystyrene foam, and its thickness is about 3 Omm. On the back surface of the spray part 431, the thickness is 5 mm to 10 mm.
[0175] 以上のように構成された冷蔵庫について、以下その動作 ·作用を説明する。  [0175] The operation and action of the refrigerator configured as described above will be described below.
[0176] 実施の形態 4で述べたように、野菜室 114は、蒸発器 102からの冷気の配分等によ り 4°C力 6°Cになるように調整され、一般的には庫内温度検知部をもたない。また、 野菜室 114内部は、食品からの蒸散と扉開閉による水蒸気の侵入により高湿である [0176] As described in the fourth embodiment, the vegetable compartment 114 is adjusted to have a 4 ° C force of 6 ° C by the distribution of cold air from the evaporator 102, and generally in the cabinet. Does not have a temperature detector. In addition, the inside of the vegetable compartment 114 is highly humid due to transpiration from food and intrusion of water vapor by opening and closing the door.
[0177] この冷蔵庫では、野菜室 114の上に切替室 113や図示しない製氷室が設けられて いる。これらの貯蔵庫内の温度は野菜室 114内の温度より低い。噴霧部 431が設置 されて ヽる仕切板 111Bの厚さは、印加電極 406を冷却するための冷却能力が必要 である。そのため、噴霧部 431が設けられている箇所の壁厚は他の部分より薄く構成 されている。ここで、印加電極 406の先端温度を露点温度以下にすれば、印加電極 406近傍の水蒸気は印加電極 406に結露し、水滴が確実に生成される。具体的に は、制御部 414が印加電極 406近傍に設置されて 、る温度検知部 412により先端温 度の状態を把握する。そして制御部 414は加熱部 444を ONZOFF制御もしくは Du ty制御を行い、印加電極 406の先端温度を露点温度以下に調整する。このようにし て高湿空気に含まれる水分が印加電極 406上に結露する。なお、図示しないが庫内 に庫内温度検知部や庫内湿度検知部などがあれば、制御部 414はあら力じめ決め られた演算により厳密に庫内環境下の変化に応じて露点温度を割り出すことができ る。また印加電極 406先端に氷や霜がついた場合でも、制御部 414は加熱部 444に より印加電極 406先端の温度を融解温度まで上昇させる。このように噴霧部 431では 霜や氷を融解することにより適度に水が生成する。 [0178] 印加電極 406は保水材 407に覆われている。そのため、印加電極 406表面は一定 量の含水状態となる。この状態で印加電極 406を負電圧側、対向電極 408を正電圧 側として、電圧印加部 409がこの電極間に高電圧 (例えば 4. 6kV)を印加させる。こ のとき例えば 3mmの距離に設定された電極間でコロナ放電が起こる。これにより印 加電極 406上の水が先端から霧化し、微細ミストとなる。このミストは電荷をもち、目視 できない 1 μ m未満のナノレベル粒子径である。またミストの生成に付随して、オゾン や OHラジカルなどが発生する。発生したオゾンはミストと即座に混合され、低濃度の オゾンミストとなる。 In this refrigerator, a switching room 113 and an ice making room (not shown) are provided on the vegetable room 114. The temperature in these storages is lower than the temperature in the vegetable compartment 114. The thickness of the partition plate 111B on which the spray unit 431 is installed needs a cooling capacity for cooling the application electrode 406. Therefore, the wall thickness of the portion where the spray part 431 is provided is configured to be thinner than other portions. Here, if the tip temperature of the application electrode 406 is set to be equal to or lower than the dew point temperature, water vapor in the vicinity of the application electrode 406 is condensed on the application electrode 406, and water droplets are reliably generated. Specifically, a control unit 414 is installed in the vicinity of the application electrode 406 and the temperature detection unit 412 grasps the state of the tip temperature. Then, the control unit 414 performs ONZOFF control or duty control on the heating unit 444 to adjust the tip temperature of the application electrode 406 below the dew point temperature. In this way, moisture contained in the humid air is condensed on the application electrode 406. Although not shown in the figure, if there are an internal temperature detector, an internal humidity detector, etc., the control unit 414 uses a predetermined calculation to strictly determine the dew point temperature according to changes in the internal environment. Can be determined. Even when ice or frost is attached to the tip of the application electrode 406, the control unit 414 causes the heating unit 444 to raise the temperature of the tip of the application electrode 406 to the melting temperature. Thus, in the spray part 431, water is generated appropriately by melting frost and ice. The application electrode 406 is covered with a water retention material 407. Therefore, the surface of the application electrode 406 is in a certain amount of water content. In this state, the application electrode 406 is set to the negative voltage side and the counter electrode 408 is set to the positive voltage side, and the voltage application unit 409 applies a high voltage (eg, 4.6 kV) between the electrodes. At this time, for example, corona discharge occurs between electrodes set at a distance of 3 mm. As a result, water on the applied electrode 406 is atomized from the tip and becomes a fine mist. This mist is charged and has a nano-level particle size of less than 1 μm that is not visible. Ozone and OH radicals are generated along with the generation of mist. The generated ozone is immediately mixed with the mist to form a low concentration ozone mist.
[0179] 発生したミストは、野菜室 114内に噴霧される。このミストはマイナスの電荷を帯びて いる。野菜室 114内に収納された農作物は通常、プラスの電荷をもつ。よって、ミスト は農作物表面に集まりやすい。またミストには、オゾンや OHラジカルなどが含まれて いる。そのため、ミストが農作物表面に付着する農薬やワックスなどの有害物質を酸 化分解する。  [0179] The generated mist is sprayed into the vegetable compartment 114. This mist is negatively charged. The crops stored in the vegetable compartment 114 usually have a positive charge. Therefore, mist is likely to gather on the crop surface. The mist also contains ozone and OH radicals. For this reason, mists decompose and decompose harmful substances such as pesticides and wax that adhere to the crop surface.
[0180] 以上のように、本実施の形態における、冷却装置を有する収納庫である冷蔵庫は、 断熱箱体 110を断熱区画して形成された貯蔵室である野菜室 114を有する。またこ の冷蔵庫は、液体のミストを噴霧する静電霧化方式の噴霧部 431を含むミスト噴霧装 置 404を有する。噴霧部 431は水に電圧を印加する印加電極 406と、印カロ電極 406 に対向する位置に配された対向電極 408と、印カロ電極 406と対向電極 408との間に 電圧を印加する電圧印加部 409とを有する。  [0180] As described above, the refrigerator that is a storage unit having a cooling device in the present embodiment has the vegetable compartment 114 that is a storage compartment formed by thermally insulating the heat insulation box 110. The refrigerator also includes a mist spraying device 404 including an electrostatic atomizing spray unit 431 that sprays liquid mist. The spray unit 431 has an application electrode 406 for applying a voltage to water, a counter electrode 408 disposed at a position facing the mark calo electrode 406, and a voltage application for applying a voltage between the mark calo electrode 406 and the counter electrode 408. Part 409.
[0181] そして比較的低温である別の貯蔵室の低温冷気を冷却源として、熱伝導により印 加電極 406が冷却される。また、加熱部 413により印加電極 406の先端温度が露点 以下に温度調整されている。これにより、空気中の水分が確実に印加電極 406先端 に結露する。すなわち、印加電極 406は野菜室 114内の空気から水分を抽出する水 収集部として機能する。  [0181] The application electrode 406 is cooled by heat conduction using low-temperature cold air from another storage room having a relatively low temperature as a cooling source. Further, the tip temperature of the application electrode 406 is adjusted to a dew point or lower by the heating unit 413. As a result, moisture in the air is surely condensed on the tip of the application electrode 406. That is, the application electrode 406 functions as a water collecting unit that extracts water from the air in the vegetable compartment 114.
[0182] また、印加電極 406の背面に設けられた加熱部 413により印加電極 406の先端温 度を微調整することにより、結露の発生量が調整される。また、印加電極 406の先端 に氷や霜が生成しても、加熱部 413がこれらを融解することより水滴にすることができ 、確実に噴霧部 431内に水が供給される。 [0183] また、収集した水は保水部 407により印加電極 406の先端に供給される。そしてそ の水は印加電極 406により野菜室 114に微細ミストとして噴霧され、確実に農作物表 面に付着する。その際、ミスト発生時に同時に発生するオゾンや OHラジカルにより農 作物表面の有害物質が除去される。また野菜室 114内の脱臭や防汚などの効果が t¾まる。 [0182] Further, the amount of condensation is adjusted by finely adjusting the tip temperature of the application electrode 406 by the heating unit 413 provided on the back surface of the application electrode 406. Further, even if ice or frost is generated at the tip of the application electrode 406, the heating unit 413 melts them to form water droplets, and water is reliably supplied into the spray unit 431. In addition, the collected water is supplied to the tip of the application electrode 406 by the water retention unit 407. The water is sprayed as fine mist on the vegetable compartment 114 by the application electrode 406 and reliably adheres to the crop surface. At that time, harmful substances on the crop surface are removed by ozone and OH radicals generated simultaneously with the occurrence of mist. In addition, effects such as deodorization and antifouling in the vegetable compartment 114 are obtained.
[0184] また、保水材 407自体には直接、風が流れにく 、。そのため保水材 407の乾燥が 防止され、保水材 407は印加電極 406の先端に十分な水を供給する。  [0184] In addition, it is difficult for the water retaining material 407 itself to flow directly. Therefore, drying of the water retention material 407 is prevented, and the water retention material 407 supplies sufficient water to the tip of the application electrode 406.
[0185] また、噴霧されたミストは直接、野菜室 114内の農作物に噴霧される。そのため、ミ ストと農作物との電位差を利用して農作物表面にミストを付着させることができる。した 力 て少量の水で効率よく農薬等の有害物質が除去される。 [0185] Further, the sprayed mist is sprayed directly on the crops in the vegetable compartment 114. Therefore, the mist can be attached to the crop surface using the potential difference between the mist and the crop. Therefore, harmful substances such as agricultural chemicals are efficiently removed with a small amount of water.
[0186] さらに、水収集部である印加電極 406は、噴霧部 431の上部から吊られるように設 置されている。そのため印加電極 406で捕捉された結露水は、重力により自然落下 して先端方向へ向かう。これによりポンプやキヤビラリなどの送水部を用いずにミスト 噴霧装置 404に水を安価に供給することが可能となる。 [0186] Furthermore, the application electrode 406, which is a water collection unit, is installed so as to be suspended from the upper part of the spray unit 431. Therefore, the dew condensation water captured by the application electrode 406 naturally falls due to gravity and travels toward the tip. This makes it possible to supply water to the mist spraying device 404 at low cost without using a water supply unit such as a pump or a firefly.
[0187] さらに、印加電極 406の周囲に保水材 407が配設されている。これにより、結露水 が印加電極 406の周囲に保持され、印加電極 406に適時に供給される。さらに、保 水材 407を振動させないので材料の収縮による劣化が防止される。 Furthermore, a water retaining material 407 is disposed around the application electrode 406. As a result, the condensed water is held around the application electrode 406 and supplied to the application electrode 406 in a timely manner. Furthermore, since the water retaining material 407 is not vibrated, deterioration due to material shrinkage is prevented.
[0188] また結露水は水道水のようにミネラル成分や不純物を含まない。そのため、保水材[0188] Condensation water does not contain mineral components or impurities like tap water. Therefore, water retention material
407の劣化や目詰まりによる保水性の低下が防止される。 A decrease in water retention due to 407 degradation or clogging is prevented.
[0189] なお、ミスト発生時にオゾンも発生する力 ミスト噴霧装置 404の ONZOFF運転に より、野菜室 114内のオゾン濃度は調整される。このようにしてオゾン濃度を適度に調 整することにより、オゾン過多による野菜の黄ィ匕などの劣化が防止されるとともに、野 菜表面の殺菌、抗菌作用が高まる。 [0189] It should be noted that the ozone concentration in the vegetable compartment 114 is adjusted by the ONZOFF operation of the mist spraying device 404, which generates ozone when mist is generated. By appropriately adjusting the ozone concentration in this manner, the deterioration of vegetables such as yellow potato caused by excessive ozone is prevented, and the sterilization and antibacterial action of the vegetable surface is enhanced.
[0190] 次に、噴霧部 404にミストを発生させるための水等の液体をより確実に供給する構 成について説明する。図 24は本実施の形態における噴霧部近傍の他の構成を示す 縦断面図である。 [0190] Next, a configuration for more reliably supplying a liquid such as water for generating mist to the spray unit 404 will be described. FIG. 24 is a longitudinal sectional view showing another configuration in the vicinity of the spraying part in the present embodiment.
[0191] 野菜室 114の天面を構成する仕切板 111Bには冷蔵庫の扉 400A側から庫内仕切 り奥面に向けて、貯水タンク 425、噴霧部 431が順に設けられている。貯水タンク 42 5の中には供給水 426が貯留されている。噴霧部 431の周辺には食品や人が触れな V、ように孔の開 、たカバー部材 501が設けられて 、る。このようにしてミスト噴霧装置 404Aが構成されている。 [0191] A partition plate 111B constituting the top of the vegetable compartment 114 is provided with a water storage tank 425 and a spraying part 431 in this order from the refrigerator door 400A side toward the interior partition interior. Reservoir tank 42 In 5, supply water 426 is stored. In the vicinity of the spraying part 431, there is a cover member 501 with a perforated hole such as V that food and people cannot touch. In this way, the mist spraying device 404A is configured.
[0192] 貯水タンク 425は人が着脱しやすいように野菜室 114の扉 400A側、すなわち前面 側に設置されている。貯水タンク 425には噴霧部 431に供給するための供給水 426 が蓄えられている。また供給水 426を噴霧部 431へ給水するために給水部 441と給 水経路 442が設けられている。給水部 441は例えば、ギアポンプゃ圧電ポンプ、キヤ ビラリなどであり、噴霧部 431の印加電極 406の先端やその周囲の保水材 407に給 水する。ここで、給水量は野菜室 114に噴霧される量とほぼ等しい。なお図 24には図 示していないが、図 23と同様に制御部 414と電圧印加部 409が設けられている。制 御部 414はさらに給水部 441の動作をも制御する。  [0192] The water storage tank 425 is installed on the door 400A side of the vegetable compartment 114, that is, on the front side so that people can easily attach and detach it. In the water storage tank 425, supply water 426 to be supplied to the spray section 431 is stored. In addition, a water supply unit 441 and a water supply path 442 are provided to supply the supply water 426 to the spray unit 431. The water supply unit 441 is, for example, a gear pump, a piezoelectric pump, a capillary, or the like, and supplies water to the tip of the application electrode 406 of the spray unit 431 and the water retaining material 407 around it. Here, the amount of water supply is substantially equal to the amount sprayed into the vegetable compartment 114. Although not shown in FIG. 24, a control unit 414 and a voltage application unit 409 are provided as in FIG. The control unit 414 further controls the operation of the water supply unit 441.
[0193] 以上のように構成されたミスト噴霧装置 404Aの動作 ·作用を説明する。例えば、野 菜室 114に噴霧が必要と判断されたとき、制御部 414は、まず給水部 441を動作さ せ、給水経路 442を利用して印加電極 406の先端に給水する。野菜室 114への噴 霧の必要性は、野菜室 114内の湿度を検知する野菜室湿度検知部（図示せず）によ り制御部 414が行う。あるいは使用者が判断してミスト噴霧装置 404Aの作動スィッチ (図示せず）により制御部 414に伝える。印加電極 406の先端に水が供給されると、 電圧印カロ部 409は印カロ電極 406と対向電極 408との間〖こ高電圧を力ける。これによ り発生する微細ミストが野菜室 114内に噴霧される。  [0193] The operation and action of the mist spraying apparatus 404A configured as described above will be described. For example, when it is determined that spraying is necessary for the vegetable compartment 114, the control unit 414 first operates the water supply unit 441 to supply water to the tip of the application electrode 406 using the water supply path 442. The necessity of spraying into the vegetable compartment 114 is performed by the control unit 414 by a vegetable compartment humidity detection unit (not shown) that detects the humidity in the vegetable compartment 114. Alternatively, it is determined by the user and transmitted to the control unit 414 by an operation switch (not shown) of the mist spraying device 404A. When water is supplied to the tip of the application electrode 406, the voltage marking unit 409 applies a high voltage between the marking electrode 406 and the counter electrode 408. Fine mist generated thereby is sprayed into the vegetable compartment 114.
[0194] 噴霧部 431は天面部の仕切板 111Bに設けられた凹部 420に埋め込まれている。  [0194] The spray section 431 is embedded in a recess 420 provided in the partition plate 111B on the top surface section.
また、噴霧部 431は野菜室 114の天面奥部に設置され、カバー部材 501がその周囲 に設置されている。このように使用者が噴霧部 431に触れないようにして、安全性が 確保されている。また底面部 501A力 貯水タンク 425の底面 425Aよりも上になるよ うに、カバー部材 501が配置されている。このように構成されたカバー部材 501は、 引き出し式の扉 400Aによって前後に可動する野菜容器 228の可動動作に影響を 与えない。  In addition, the spray unit 431 is installed in the top of the vegetable room 114 and the cover member 501 is installed around it. Thus, safety is ensured by preventing the user from touching the spray part 431. Further, the cover member 501 is arranged so as to be higher than the bottom surface 425A of the bottom surface portion 501A force water storage tank 425. The cover member 501 configured in this manner does not affect the movable operation of the vegetable container 228 that can be moved back and forth by the pull-out door 400A.
[0195] 容器 228内には農作物である野菜が収納されている。特に緑の菜っ葉ものや果物 等が保存されている場合、これらの青果物は通常、購入帰路時での蒸散あるいは保 存中の蒸散によってやや萎れかけた状態で収納されていることが多い。これらの青 果物は通常、プラスの電荷に帯電されており、噴霧されたマイナスの電荷を持った微 細ミストは、野菜表面に集まりやすい。よって、噴霧されたミストは野菜室 114内を高 湿にすると同時に青果物の表面に付着する。このように帯電する農作物の表面およ び庫内壁面にミストが電気的に付着する。さらに、ミストは農作物の表面の微細な凹 部にまで侵入し、残留農薬やワックスなどの有害物質をその内圧エネルギーによって 浮き上がらせる。 [0195] In the container 228, vegetables that are agricultural products are stored. These fruits and vegetables are usually transcribed or preserved at the time of purchase return, especially when green rape leaves and fruits are preserved. It is often stored in a slightly deflated state due to transpiration. These fruits and vegetables are usually charged with a positive charge, and the fine mist with a negative charge sprayed easily collects on the vegetable surface. Therefore, the sprayed mist adheres to the surface of the fruits and vegetables at the same time that the inside of the vegetable compartment 114 is humidified. Mist adheres electrically to the surface of the crops thus charged and the inner wall of the warehouse. In addition, the mist penetrates into the fine recesses on the surface of the crops, and toxic substances such as residual agricultural chemicals and wax are lifted by the internal pressure energy.
[0196] また、静電霧化方式で微細ミストを生成することにより、ミスト発生時と同時に微量の オゾンが発生する。このオゾンはミストと即座に混合して、低濃度のオゾンミストが生 成される。また、ミストに静電付加することにより、ミスト中の水分子がラジカルィ匕し、 O Hラジカルが生成される。そのためオゾンの酸化力に加え、 OHラジカルの酸化力に より、浮き上がった有害物質はオゾンの酸ィ匕分解作用によって、酸化分解除去される 。あるいはミストが電気的に農作物表面の微細な凹部にまで進入した後、ミストに含ま れるオゾンや OHラジカルは残留農薬やワックスとィ匕学反応する。そのため残留農薬 やワックスの親水性が高まり、ミスト中に取り込まれ分解除去される。  [0196] Further, by generating fine mist by the electrostatic atomization method, a small amount of ozone is generated simultaneously with the mist generation. This ozone mixes immediately with the mist to produce a low concentration of ozone mist. Moreover, by electrostatically adding to the mist, water molecules in the mist are radicalized to generate OH radicals. For this reason, in addition to the oxidizing power of ozone, the toxic effects of OH radicals cause oxidative decomposition of ozone to remove toxic substances that float. Alternatively, after the mist electrically enters the fine recesses on the crop surface, ozone and OH radicals contained in the mist react chemically with residual agricultural chemicals and wax. As a result, residual pesticides and waxes become more hydrophilic and are taken up in mist and decomposed and removed.
[0197] 以上のように、本実施の形態においては、冷蔵庫の野菜室 114の天面に位置する 仕切板 111Bに貯水タンク 425が扉 400A側に設けられている。すなわち使用者から みて前面側に貯水タンク 425が設けられている。特に貯水タンク 425が着脱式である 場合には、水の交換、追加、清掃が容易となり使い勝手が向上する。また、噴霧部 4 31が貯水タンク 425よりも奥側に設けられているため、使用者が噴霧部 431、特に噴 霧先端部 406Aに触れることが防止され、安全性が高まる。さらに、噴霧部 431の下 端 431Aが貯水タンク 425よりも奥側でかつ貯水タンク 425の下端面である底面 425 Aよりも上に配置されている。そのため使用者から噴霧部 431が見えにくぐ野菜室 1 14内の美観が損なわれない。また使用者が噴霧部 431により触れに《なるので、使 用者の安全性がより高まる。また、噴霧部 431への食品や人の接触が防止されるの で、外力による信頼性の低下が防止される。  [0197] As described above, in the present embodiment, the water storage tank 425 is provided on the door 400A side on the partition plate 111B located on the top surface of the vegetable compartment 114 of the refrigerator. That is, a water storage tank 425 is provided on the front side as viewed from the user. In particular, when the water storage tank 425 is detachable, it is easy to replace, add, and clean water, improving usability. In addition, since the spray section 431 is provided on the back side of the water storage tank 425, the user is prevented from touching the spray section 431, particularly the spray tip section 406A, and safety is improved. Further, the lower end 431 A of the spraying part 431 is disposed on the back side of the water storage tank 425 and above the bottom surface 425 A, which is the lower end surface of the water storage tank 425. Therefore, the aesthetics in the vegetable compartment 1 14 where the spraying part 431 is difficult to see from the user are not impaired. Further, since the user touches the spray portion 431, the safety of the user is further increased. In addition, since food or human contact with the spraying part 431 is prevented, a decrease in reliability due to external force is prevented.
[0198] また、噴霧部 431の庫内への出っ張りをより抑えるために、噴霧部 431は仕切板 11 1Bに設けられた凹部 420に埋め込まれている。これによつて、庫内容積を減少させ ることなく、かつ食品の収納に影響を与えずに、野菜室 114内に噴霧部 431が設け られる。 [0198] Further, in order to further suppress the protrusion of the spraying part 431 into the chamber, the spraying part 431 is embedded in a recess 420 provided in the partition plate 111B. This reduces the internal volume The spray section 431 is provided in the vegetable compartment 114 without affecting food storage.
[0199] さらに、噴霧部 431を覆うカバー部材 501を設けることで、食品や人が接触すること 力 り防止される。  [0199] Furthermore, by providing the cover member 501 that covers the spray part 431, the force of food and people coming into contact is prevented.
[0200] また、噴霧部 431をカバー部材 501で覆った場合でも、底面部 501Aは、貯水タン ク 425の底面 425Aより上に配置されている。これによつて庫内容積の減少を防いだ 上で、より噴霧部 431を設けられた野菜室 114の美観と安全性とが向上する。  [0200] Further, even when the spray portion 431 is covered with the cover member 501, the bottom surface portion 501A is disposed above the bottom surface 425A of the water storage tank 425. This prevents a decrease in the internal volume and improves the beauty and safety of the vegetable compartment 114 provided with the spraying part 431.
[0201] なお、貯水タンク 425は着脱式として説明しているが、これに限定されない。貯水タ ンク 425が固定式であって、例えば水道水、もしくは冷蔵庫内の水分を利用して生成 した貯留水等を自動で供給してもよ ヽ。このようなタイプのミスト噴霧装置 404Aでも、 上記のように噴霧部 431を貯水タンク 425よりも奥側に配置することが好ましい。これ により使用者が噴霧部 431に触れることが防止され、安全性が高まる。さら〖こ、貯水タ ンク 425よりも奥側でかつ貯水タンク 425の底面 425Aよりも上に噴霧部 431を配置 することで、使用者力も噴霧部 431が見えに《なる。そのため、野菜室 114内の美 観を損なうことなく野菜室 114に噴霧部 431を設けることができる。また、より使用者 が噴霧部 431に触れに《なるので、使用者への安全性が高まる。そして、噴霧部 43 1への食品や人の接触が防止されるので、外力による信頼性の低下が防止される。  [0201] Although the water storage tank 425 has been described as being removable, the present invention is not limited to this. The water storage tank 425 is a fixed type, and for example, tap water or stored water generated using moisture in the refrigerator may be automatically supplied. Even in this type of mist spraying apparatus 404A, it is preferable to dispose the spraying part 431 on the back side of the water storage tank 425 as described above. This prevents the user from touching the spraying part 431 and increases safety. By placing the spray part 431 further on the back side than the water storage tank 425 and above the bottom surface 425A of the water storage tank 425, the user's power can be seen. Therefore, the spraying part 431 can be provided in the vegetable compartment 114 without impairing the appearance in the vegetable compartment 114. In addition, since the user touches the spray part 431 more, safety to the user is enhanced. And since the foodstuff and the person's contact with the spray part 43 1 are prevented, the fall of the reliability by external force is prevented.
[0202] なお、本実施の形態では静電霧化方式の噴霧部 431を用いている力 これに限定 されない。超音波霧化方式等の別方式の噴霧部を用いてもよい。その場合も、貯水 タンク 425と噴霧部との配置関係を上記と同様にすることにより、冷蔵庫の使い勝手 や安全性が向上する。  [0202] In the present embodiment, the force using the spray unit 431 of the electrostatic atomization method is not limited to this. You may use the spray part of another systems, such as an ultrasonic atomization system. Even in this case, the convenience and safety of the refrigerator can be improved by making the arrangement relationship between the water storage tank 425 and the spray section the same as described above.
[0203] 以上のように図 24の構成では、印加電極 406周辺をより高湿にすることにより、印 加電極 406と対向電極 408間の空気放電が抑制される。そのため発生オゾン濃度が 低減され、家庭用の冷蔵庫等に適用した場合でも、使用者への安全性が確保される  As described above, in the configuration of FIG. 24, air discharge between the application electrode 406 and the counter electrode 408 is suppressed by increasing the humidity around the application electrode 406. Therefore, the generated ozone concentration is reduced, ensuring safety for users even when applied to household refrigerators, etc.
[0204] また図 24の構成では、噴霧部 431が仕切板 111Bに設けられた凹部 420に埋め込 まれて、他の部分より仕切板 111Bの厚みが薄い。そのため印加電極 406の先端が 冷却されて結露が容易になる。ただし、図 24に示すように貯水タンク 425を設けて印 加電極 406に給水する場合、印加電極 406上で結露させなくてもよい。その場合、 温度検知部 412や加熱部 420等を設けなくてもよい。 [0204] Further, in the configuration of FIG. 24, the spray portion 431 is embedded in the recess 420 provided in the partition plate 111B, and the thickness of the partition plate 111B is thinner than the other portions. As a result, the tip of the application electrode 406 is cooled to facilitate dew condensation. However, as shown in Fig. 24, a water storage tank 425 is provided and marked. When supplying water to the additional electrode 406, it is not necessary to cause condensation on the applying electrode 406. In that case, the temperature detection unit 412 and the heating unit 420 may not be provided.
[0205] また図 24の構成では、静電霧化方式の噴霧部 431を用いている力 超音波霧化 方式の噴霧部を用いた場合には、特に噴霧先端部が乾燥すると、噴霧部がヒートァ ップする。そのため信頼性の低下が懸念される。このように超音波霧化方式の噴霧部 を用いる場合でも、給水部 441の動作後に噴霧部を駆動することで、噴霧先端部の 乾燥が防止され、ミスト噴霧装置の信頼性が向上する。  [0205] In the configuration of Fig. 24, when using a spray section of the ultrasonic atomization system using the spray section 431 of the electrostatic atomization system, especially when the spray tip part is dried, the spray section is Heat up. For this reason, there is a concern about a decrease in reliability. Even when an ultrasonic atomizing spray unit is used as described above, by driving the spray unit after the operation of the water supply unit 441, drying of the spray tip is prevented and the reliability of the mist spraying device is improved.
[0206] (実施の形態 7)  [Embodiment 7]
図 25は本発明の実施の形態 7における冷蔵庫の野菜室近傍の正面図である。図 2 6は図 25に示す冷蔵庫の野菜室近傍の A - A線での縦断面図である。  FIG. 25 is a front view of the vicinity of the vegetable compartment of the refrigerator in the seventh embodiment of the present invention. FIG. 26 is a longitudinal sectional view taken along line AA in the vicinity of the vegetable compartment of the refrigerator shown in FIG.
[0207] 野菜室 114には、野菜や果物を貯蔵するための容器 228Aが配置されて 、る。冷 蔵庫外郭には容器 228 Aを保持するレール部材 512が設けられている。レール部材 512に保持された容器 228Aは、扉 400Aの開閉に合せて前後に動く。さらに、野菜 室 114内には、容器 228とほぼ別区画に仕切られた特定容器 228Bが配置されてい る。扉 400Aの閉時にのみ、蓋 514は特定容器 228Bをほぼ密閉している。蓋 514は 光透過性の素材からなり、一部に孔が開いている。なお、図 26では容器 228Aを省 略している。蓋 514は図 26に示すように、扉 400A側は特定容器 228Bの内側に、庫 内奥側は特定容器 228Bよりも奥になるよう配置されている。  [0207] In the vegetable compartment 114, a container 228A for storing vegetables and fruits is arranged. A rail member 512 for holding the container 228A is provided on the outer wall of the refrigerator. The container 228A held by the rail member 512 moves back and forth as the door 400A opens and closes. Furthermore, in the vegetable compartment 114, a specific container 228B partitioned from the container 228 in a substantially separate section is arranged. The lid 514 almost seals the specific container 228B only when the door 400A is closed. The lid 514 is made of a light-transmitting material and has a hole in a part thereof. In FIG. 26, the container 228A is omitted. As shown in FIG. 26, the lid 514 is arranged so that the door 400A side is inside the specific container 228B and the back side of the interior is deeper than the specific container 228B.
[0208] 特定容器 228B内には、着脱可能な貯水タンク 425Cが扉 400A側、すなわち前面 側に設けられている。そして仕切板 11Bの奥側には噴霧部 431が取り付けられてい る。静電霧化方式の噴霧部 431の基本的な構成は実施の形態 6と同様である。蓋 51 4の、噴霧部 431近辺には、噴霧部 431の外形寸法より若干大きめの孔 517が設け られている。この構成により、蓋 514は噴霧部 431に対して移動が制限されている。 蓋 514は、扉 400Aの開閉に伴って動く。扉 400Aの閉時には、蓋 514は特定容器 2 28Bをほぼ密閉する。また扉 400Aの開時には、特定容器 228Bから外れ、本体側 に保持される。そのため扉 400Aを開けた状態では特定容器 228Bの上面は開口さ れている。  [0208] In the specific container 228B, a detachable water storage tank 425C is provided on the door 400A side, that is, on the front side. A spray portion 431 is attached to the back side of the partition plate 11B. The basic configuration of the spray unit 431 of the electrostatic atomization method is the same as that of the sixth embodiment. In the vicinity of the spray part 431 of the lid 514, a hole 517 that is slightly larger than the outer dimensions of the spray part 431 is provided. With this configuration, the movement of the lid 514 relative to the spray unit 431 is restricted. The lid 514 moves as the door 400A opens and closes. When the door 400A is closed, the lid 514 substantially seals the specific container 228B. When the door 400A is opened, it is detached from the specific container 228B and held on the main body side. Therefore, when the door 400A is opened, the upper surface of the specific container 228B is opened.
[0209] 容器 228Aには、特定容器 228Bを保持するための保持部 515が設けられている。 保持部 515は特定容器 228Bに設けられた突起部 516を保持する。図 26では特定 容器 228Bが庫内奥側まで設けられている力 特定容器 228Bの奥行きが容器 228 Aの奥行きよりも充分小さい場合には、保持部 515は特定容器 228Bを引き出す際 の、レールとして機能する。 [0209] The container 228A is provided with a holding part 515 for holding the specific container 228B. The holding part 515 holds the protrusion 516 provided on the specific container 228B. In FIG. 26, the force that the specific container 228B is provided to the inner side of the interior. When the depth of the specific container 228B is sufficiently smaller than the depth of the container 228A, the holding portion 515 serves as a rail when the specific container 228B is pulled out. Function.
[0210] 仕切板 111Bには、照射部 523と拡散板 524とが設けられている。照射部 523は特 定波長の光を特定容器 228B内に照射して、特定容器 228B内の農作物に影響を 与える。拡散板 524は、特定容器 228B内を均一に照射し、かつ、光源である照射部 523をカバーしている。照射部 523は、特定容器 228B上方の投影面に設置され、 特定容器 228B内に透明な蓋 514を通して光を照射する。  [0210] Irradiation section 523 and diffusion plate 524 are provided on partition plate 111B. The irradiation unit 523 irradiates the specific container 228B with light of a specific wavelength, and affects the crops in the specific container 228B. The diffusion plate 524 uniformly irradiates the inside of the specific container 228B and covers the irradiation unit 523 that is a light source. The irradiation unit 523 is installed on the projection surface above the specific container 228B, and irradiates light through the transparent lid 514 into the specific container 228B.
[0211] 以上のように構成された冷蔵庫の野菜室 114の動作.作用を説明する。野菜室 11 4に収納される食品は、近年、多岐にわたる。例えば、ペットボトルのような高湿を必 要としない飲料品も収納され、その用途は千差万別である。野菜の中にも、ほうれん 草などの葉野菜は、比較的、低温高湿を好むが、しいたけなどは高湿度を好まない。 また、ジャガイモなどの穀物は、 10°C前後を好む。本実施の形態では、特定容器 22 8Bが容器 228A内に設けられている。これにより保存野菜に応じた空間環境が提供 される。また、特定容器 228Bと蓋 514とはほぼ閉じられた空間を形成している。そし て貯水タンク 425C力もの水の蒸発により、特定容器 228B内は高湿になっており、そ のため、ほうれん草などの葉野菜の保存に適した空間になっている。  [0211] The operation and action of the vegetable room 114 of the refrigerator configured as described above will be described. The food stored in the vegetable compartment 11 4 has been diverse in recent years. For example, beverages that do not require high humidity, such as plastic bottles, are also stored, and their uses vary widely. Among vegetables, leafy vegetables such as spinach prefer relatively low temperatures and high humidity, but shiitake mushrooms do not like high humidity. Also, potato and other grains prefer around 10 ° C. In the present embodiment, the specific container 228B is provided in the container 228A. This will provide a space environment according to the preserved vegetables. Further, the specific container 228B and the lid 514 form a substantially closed space. The specific container 228B has become highly humid due to the evaporation of 425C water from the water storage tank 425C, which makes it suitable for storing leafy vegetables such as spinach.
[0212] この高湿化された特定容器 228Bの内部空間の上部には、噴霧部 431の少なくとも 噴霧先端部 406Aが設けられて 、る。噴霧部 431と貯水タンク 425Cとは高湿な空気 中の水蒸気を利用して静電霧化方式でミストを噴霧するミスト噴霧装置を構成してい る。実施の形態 6で述べたように、噴霧部 431は背面力もの冷却を利用して結露させ る。そのため、仕切板 111Bの、噴霧部 431を取り付けられた部分には凹部 420Aが 設けられている。このような構成により、噴霧部 431は電荷をもった目視できないナノ レベルの微細ミストを発生し、特定容器 228B内に噴霧する。前述のように、静電霧 化方式で発生した微細ミストは、発生時に電荷をもっと同時に微量のオゾンと OHラ ジカルなどを発生する。そのため、オゾンの酸化力に加え、 OHラジカルの酸化力を 有する。ミストは野菜や果物表面の微細な凹部まで浸透し、残留農薬やワックスなど の有害物質をその内圧エネルギーによって、浮き上がらせる。そして、オゾンの酸ィ匕 分解作用によって、酸化分解除去する。ミストは場合によっては、電気的に野菜ゃ果 物表面の微細な凹部にまで進入し、残留農薬やワックスと化学反応し、残留農薬や ワックスの親水性を高め、ミスト中に取り込み分解除去する。 [0212] At least the spray tip 406A of the spray unit 431 is provided in the upper part of the internal space of the highly humidified specific container 228B. The spray unit 431 and the water storage tank 425C constitute a mist spraying device that sprays mist by electrostatic atomization using water vapor in humid air. As described in the sixth embodiment, the spray unit 431 uses the cooling of the back surface to condense. Therefore, a recess 420A is provided in the part of the partition plate 111B to which the spray part 431 is attached. With such a configuration, the spraying unit 431 generates nanoscopic fine mist that has an electric charge and cannot be visually observed, and sprays it into the specific container 228B. As mentioned above, the fine mist generated by the electrostatic atomization method generates a small amount of ozone and OH radicals at the same time as the charge. Therefore, in addition to the oxidizing power of ozone, it has the oxidizing power of OH radicals. The mist penetrates into the fine recesses on the surface of vegetables and fruits, leaving residual pesticides and wax. The harmful substances are lifted by the internal pressure energy. Then, it is oxidatively decomposed and removed by the acid decomposition action of ozone. In some cases, the mist electrically enters even the fine recesses on the surface of the vegetable fruit, chemically reacts with the residual agricultural chemicals and wax, increases the hydrophilicity of the residual agricultural chemicals and wax, and is taken into the mist for decomposition and removal.
[0213] このように、少なくとも噴霧先端部 406Aは特定容器 228B内に設けられている。そ のため農作物が収納されている特定容器 228Bに対して直接的にミスト粒子が噴霧 される。このように噴霧先端部 406Aと農作物との距離が短い。そのため、例えば特 定容器 228B外でミストを噴霧して力も特定容器 228B内へ送り込む場合と比較して 、ミスト粒子の気化が防止される。また浮遊状態におけるミストの流速が高まるので、 農作物表面へのミストの付着率が高まる。  [0213] Thus, at least the spray tip 406A is provided in the specific container 228B. Therefore, mist particles are sprayed directly on the specific container 228B in which the crops are stored. Thus, the distance between the spray tip 406A and the crop is short. Therefore, for example, vaporization of mist particles is prevented as compared with the case where the mist is sprayed outside the specific container 228B and the force is also fed into the specific container 228B. Also, since the mist flow rate in the floating state increases, the mist adherence rate to the crop surface increases.
[0214] また、噴霧先端部 406Aは特定容器 228B内に設けられるとともに、貯水タンク 425 Cは噴霧部 431が設けられている区画とは別の区画に設けられている。すなわち、貯 水タンク 425Cは断熱箱体 110の、噴霧先端部 406Aとは別の区画内に設けられ、 水を保持して噴霧部 431に水蒸気を供給する供給部である。この構成では、貯水タ ンク 425Cの配置位置が噴霧部 431の配置位置に影響されない。そのため、貯水タ ンク 425C内への水の補給や貯水タンク 425C内の清掃が容易となるような任意の位 置に貯水タンク 425Cを設けることができる。このように使用者の使い勝手が向上する  [0214] In addition, the spray tip 406A is provided in the specific container 228B, and the water storage tank 425C is provided in a section different from the section in which the spray section 431 is provided. That is, the water storage tank 425C is a supply unit that is provided in a section of the heat insulation box 110 that is different from the spray tip 406A and that holds water and supplies water vapor to the spray unit 431. In this configuration, the arrangement position of the water storage tank 425C is not affected by the arrangement position of the spray section 431. Therefore, the water storage tank 425C can be provided at an arbitrary position that facilitates replenishment of water into the water storage tank 425C and cleaning of the water storage tank 425C. In this way, user convenience is improved.
[0215] このように噴霧部と貯水タンクとの配置を離すことによって、使用者の使い勝手が向 上する。このような効果は、本実施の形態のような噴霧部 431以外の、例えば超音波 霧化方式の噴霧部やその他の霧化方式を用いても、同様に得られる。 [0215] By separating the spray section and the water storage tank in this way, the convenience of the user is improved. Such an effect can be obtained in the same manner by using, for example, an ultrasonic atomization type spray unit or other atomization methods other than the spray unit 431 as in the present embodiment.
[0216] また、同じ野菜室 114の内部で、ミストを噴霧する区画である特定容器 228Bと、ミス ト噴霧を行わない容器 228Aとが配置されている。これにより、保存野菜に応じた空 間環境が提供される。使用者は用途に応じて野菜室 114の機能を使用することがで きるので、冷蔵庫の使い勝手と農作物の保存性とが大きく向上する。  [0216] Also, in the same vegetable compartment 114, a specific container 228B that is a section for spraying mist and a container 228A that does not perform mist spraying are arranged. This provides a space environment according to the preserved vegetables. Since the user can use the functions of the vegetable compartment 114 according to the purpose, the convenience of the refrigerator and the preservation of the crop are greatly improved.
[0217] 照射部 523は、ミストが噴霧されて高湿度となる特定容器 228Bの外部に設けられ ている。これによつて、照射部 523の周辺は高湿度にならず、照射部 523への結露 による信頼性の低下が防止される。 [0218] 図 25、図 26では、照射部 523は特定容器 228Bの上側に設けられている。照射部 523と特定容器 228Bとの間に位置する蓋 514は光透過性の材質で構成されている 。これ以外の位置に照射部 523を設けてもよい。例えば、照射部 523は特定容器 22 8Bの側面部や底面部に設けてもよい。そのような場合、少なくとも照射部 523と特定 容器 228B内の空間との間に位置する部分の特定容器 228Bの素材を光透過性の 材質で形成する。これにより特定容器 228Bの上側以外に配置されても、照射部 523 は特定容器 228B内の野菜に光照射を行うことができる。 [0217] The irradiation unit 523 is provided outside the specific container 228B, which is sprayed with mist and becomes high humidity. As a result, the periphery of the irradiation unit 523 does not become high humidity, and a decrease in reliability due to condensation on the irradiation unit 523 is prevented. In FIGS. 25 and 26, the irradiation unit 523 is provided on the upper side of the specific container 228B. The lid 514 positioned between the irradiation unit 523 and the specific container 228B is made of a light transmissive material. The irradiation unit 523 may be provided at a position other than this. For example, the irradiation unit 523 may be provided on the side surface or the bottom surface of the specific container 228B. In such a case, at least a part of the material of the specific container 228B located between the irradiation unit 523 and the space in the specific container 228B is formed of a light transmissive material. Thereby, even if it arrange | positions other than the upper side of the specific container 228B, the irradiation part 523 can perform light irradiation to the vegetables in the specific container 228B.
[0219] 次に照射部 523の種類とその効果について説明する。まず、照射部 523が 400nm 以上 500nm以下の波長を含んだ青色光を発する場合にっ 、て説明する。この場合 、例えば照射部 523を青色発光ダイオード (LED)により構成する。これにより、蓋 51 4を通して光照射された、特定容器 228B内の農作物野菜は、光刺激により生態活 動が促される。具体的には気孔が開孔し、表面についたミストや水滴を吸収する。こ れにより農作物の水分含有量と重量とが増加し、みずみずしさが維持される。  [0219] Next, the types of irradiation unit 523 and the effects thereof will be described. First, the case where the irradiation unit 523 emits blue light having a wavelength of 400 nm to 500 nm will be described. In this case, for example, the irradiation unit 523 is configured by a blue light emitting diode (LED). As a result, the crop vegetables in the specific container 228B irradiated with light through the lid 514 are promoted to be ecologically activated by light stimulation. Specifically, pores are opened to absorb mist and water droplets on the surface. This increases the water content and weight of the crop and keeps it fresh.
[0220] また、照射部 523に紫外線領域を含む波長を有する LEDを用いる。この場合には 、噴霧されるミストが殺菌されるとともに食品表面も殺菌される。そのため、食品の安 全性が高まる。このような光を照射することで、特定容器 228B内の壁面や食品の表 面に付着している微生物の増殖機能が不活性ィ匕する。そのため、微生物によって生 じる食品の変色や腐敗臭、貯蔵品表面のネト発生が遅れる。すなわち、特定容器 22 8B内部の衛生性が保たれる。さらに、光源として発熱量の小さい LEDを用いている ので、野菜室 114内の温度上昇が防止され、食品の保存性が安定する。  [0220] Further, an LED having a wavelength including an ultraviolet region is used for the irradiation unit 523. In this case, the sprayed mist is sterilized and the food surface is also sterilized. This increases food safety. Irradiation with such light inactivates the growth function of microorganisms attached to the wall surface of the specific container 228B and the food surface. As a result, the discoloration and rot of food produced by microorganisms and the occurrence of netting on the surface of stored products are delayed. That is, the hygiene inside the specific container 228B is maintained. In addition, since a LED with a small calorific value is used as the light source, the temperature rise in the vegetable compartment 114 is prevented, and the food storage stability is stabilized.
[0221] また、特定容器 228B内は噴霧部 431を動作させずに、照射部 523のみを動作さ せることも可能である。例えば、きのこ類や魚類には、骨や歯の成長に欠力せないビ タミン Dの前駆物質を多く含むものがある。それらを保存する場合に紫外線を照射す ると、分子が励起され、ビタミン Dへと変換される。よって、紫外光を含む光源を野菜 室 114内に設けることで、野菜室 114内の特定の食品、例えばしらすぼしのビタミン D含有量を保存前と比較して高めることができる。保存される食品は農作物に限らず 、このように熟成を目的とした食品を保存することで特定容器 228Bを、熟成機能を持 つ空間として利用することも可能である。 [0222] 以上のように、本実施の形態においては、野菜室 114内に特定容器 228Bとその 空間を略密閉するための蓋 514とが設けられている。特定容器 228B内の前面には 貯水タンク 425Cが設けられ、奥面上方に、ミスト噴霧装置に含まれる静電霧化方式 の噴霧部 431を有する。これにより、特定容器 228B内に保存された農作物にミスト が噴霧され、有害物質が浮き上がり、また分解される。また高湿環境を好む農作物に 対してのみ加湿より保鮮性を向上させることができる。このように野菜室 114内部で、 野菜の種類によって最適な保存環境を提供することができる。 [0221] In addition, in the specific container 228B, it is possible to operate only the irradiation unit 523 without operating the spraying unit 431. For example, some mushrooms and fish contain many precursors of vitamin D that are essential for bone and tooth growth. When they are stored, when they are irradiated with UV light, the molecules are excited and converted to vitamin D. Therefore, by providing a light source including ultraviolet light in the vegetable compartment 114, it is possible to increase the vitamin D content of a specific food in the vegetable compartment 114, for example, shirasuboshi, before storage. The food to be stored is not limited to agricultural crops, and the specific container 228B can be used as a space having a ripening function by storing the food for ripening as described above. [0222] As described above, in the present embodiment, the specific container 228B and the lid 514 for substantially sealing the space are provided in the vegetable compartment 114. A water storage tank 425C is provided on the front surface in the specific container 228B, and an electrostatic atomization type spraying portion 431 included in the mist spraying device is provided above the back surface. As a result, mist is sprayed on the crops stored in the specific container 228B, and harmful substances are lifted and decomposed. In addition, freshness can be improved over humidification only for crops that prefer a humid environment. In this manner, the optimum storage environment can be provided in the vegetable compartment 114 depending on the type of vegetable.
[0223] また、照射部 523によって、特定の波長を選択した光を照射し、かつ噴霧部 431に て気孔を通過できる微細ミストを適量噴霧する。これにより、さらに特定容器 228B内 の保存環境の幅が広がり、使用者のニーズおよび保存野菜に応じた空間環境を提 供することができる。  [0223] Further, the irradiation unit 523 irradiates light with a specific wavelength selected, and the spray unit 431 sprays an appropriate amount of fine mist that can pass through the pores. This further expands the range of storage environments in the specific container 228B, and can provide a spatial environment according to the needs of the user and stored vegetables.
[0224] また、特定容器 228Bの前面に貯水タンク 425Cが設けられているため、水の補給、 水の交換、追加、清掃が容易などの使い勝手がよい。また、噴霧部 431は人が触り にくい奥面上方に設置されているため、安全性が高い。しかも、扉 400Aが閉まって いる状態においては、蓋 514が噴霧部 431を覆っているので、野菜室 114内の冷気 に直接さらされな 、ためさらに安全性が高 、。  [0224] Further, since the water storage tank 425C is provided in front of the specific container 228B, it is easy to use such as easy water supply, water exchange, addition, and cleaning. In addition, the spray unit 431 is installed on the upper surface of the back where it is difficult for humans to touch, so it is highly safe. Moreover, when the door 400A is closed, the lid 514 covers the spraying part 431, so that it is not directly exposed to the cold air in the vegetable compartment 114, so that safety is further improved.
[0225] また、照射部 523は特定容器 228Bの外に設置されているため、結露による配線不 良などを起こす可能が低くなり、信頼性が向上する。また、蓋 514は、光透過性の材 質で構成されていることにより照射部 523の発する光を容器内に通すことができる。  [0225] Furthermore, since the irradiation unit 523 is installed outside the specific container 228B, the possibility of poor wiring due to condensation is reduced, and the reliability is improved. In addition, since the lid 514 is made of a light-transmitting material, light emitted from the irradiation unit 523 can pass through the container.
[0226] また、本実施の形態では、特定容器 228Bがほぼ密閉空間になっている。そのため 野菜室 114等の貯蔵室内を冷却する冷却装置冷媒にイソブタンやプロパンなどの可 燃性冷媒を用いた場合でも安全である。すなわち、万が一冷媒が漏洩した場合でも 、特定容器 228B内がほぼ密閉されているため可燃濃度に到達することがない。また 、噴霧部 431が上部に配置されていれば、特に空気より比重の重い可燃性冷媒を用 いた場合に安全性が損なわれない。これは万が一冷媒が漏洩した場合でも、漏洩し たイソブタンは下部に滞留するためである。  [0226] Further, in the present embodiment, the specific container 228B is substantially a sealed space. Therefore, it is safe even when a combustible refrigerant such as isobutane or propane is used as a cooling device refrigerant for cooling the storage room such as the vegetable compartment 114. That is, even if the refrigerant leaks, the flammable concentration is not reached because the inside of the specific container 228B is almost sealed. Further, if the spraying part 431 is arranged at the upper part, safety is not impaired particularly when a flammable refrigerant having a specific gravity higher than that of air is used. This is because even if the refrigerant leaks, the leaked isobutane stays in the lower part.
[0227] なお、照射部 523は青色光を発する以外に、紫外線を発してもかまわない。この場 合、噴霧されるミストを殺菌するとともに食品表面も殺菌でき、食品の安全性を高める ことができる。さらに、後述する実施の形態のように、農作物に付着した有害物質の 分解が促進される。 [0227] The irradiation unit 523 may emit ultraviolet light in addition to emitting blue light. In this case, the sprayed mist can be sterilized and the surface of the food can be sterilized, increasing food safety. be able to. Furthermore, as in the embodiments described later, the decomposition of harmful substances attached to agricultural products is promoted.
[0228] なお、本実施の形態においては、特定容器 228Bは野菜室 114内のミスト噴霧を行 わな 、容器 228Aと隣接して設けられた力 例えば特定容器 228Bはミストを行わな V、容器 228Aの上部でかつ野菜室 114の高さの半分程度の容器で設けられることも ある。その場合、ミストを行わない容器 228Aに収納した野菜を取り出す場合には、上 部に位置する特定容器 228Bを後方へスライドさせることができ、ミスト噴霧される特 定容器 228Bの深さを浅くすることで、ミストが底部に溜まることを避けることで、野菜 の隅々までミストを行き届力せることができる。また、野菜室 114に一般的な野菜を入 れる場合に、野菜室 114の上下の空間を 2段の容器で有効に使うことができ、野菜室 114の収納量を増加させ、使用者の使!、勝手を向上させることが可能となる。  [0228] In the present embodiment, the specific container 228B does not perform mist spraying in the vegetable compartment 114, and the force provided adjacent to the container 228A. For example, the specific container 228B does not perform mist V, the container 228A. It may be provided in a container about half the height of the vegetable compartment 114. In that case, when taking out the vegetables stored in the container 228A that does not perform mist, the specific container 228B located at the upper part can be slid backward, and the depth of the specific container 228B to be sprayed with mist is reduced. By avoiding the mist from accumulating at the bottom, the mist can reach every corner of the vegetable. In addition, when general vegetables are put into the vegetable compartment 114, the space above and below the vegetable compartment 114 can be effectively used with two containers, increasing the amount of storage in the vegetable compartment 114 and the use of the user. ! It becomes possible to improve selfishness.
[0229] (実施の形態 8)  [Embodiment 8]
図 27Aは本発明の実施の形態 8における冷蔵庫の側断面図である。図 27Bは図 2 7Aに示す冷蔵庫の概略を示す部分正面図である。  FIG. 27A is a side sectional view of the refrigerator in the eighth embodiment of the present invention. FIG. 27B is a partial front view showing an outline of the refrigerator shown in FIG. 27A.
[0230] この冷蔵庫が実施の形態 3の図 5に示す冷蔵庫と異なる点は、噴霧部 123に代え て実施の形態 1の図 1に示す噴霧部 76を有する点である。噴霧部 76は、野菜室 114 の天面に設けられている。また噴霧部 76に給水する貯水タンク 72Aが冷蔵室 112内 の背面側に設けられている。なお、図 27Bに示すように、切替室 113の隣には製氷 室 227が設けられて 、る。貯水タンク 119から給水経路 73が製氷室 227と野菜室 11 4とへ水を供給している。これ以外の基本的な構成は図 5に示す冷蔵庫と同様である  This refrigerator is different from the refrigerator shown in FIG. 5 of the third embodiment in that the refrigerator has a spray unit 76 shown in FIG. 1 of the first embodiment in place of the spray unit 123. The spray unit 76 is provided on the top of the vegetable compartment 114. Further, a water storage tank 72A for supplying water to the spray section 76 is provided on the back side in the refrigerator compartment 112. As shown in FIG. 27B, an ice making chamber 227 is provided next to the switching chamber 113. Water supply path 73 supplies water from ice storage tank 119 to ice making room 227 and vegetable room 114. Other basic configurations are the same as the refrigerator shown in FIG.
[0231] 以上のように構成された冷蔵庫では製氷用の貯水タンク 72Aから給水経路 73を利 用して噴霧部 76へ水が送られる。そのため、専用のタンクを設けなくても噴霧部 76 に水を供給することができる。そして野菜室 114と別の貯蔵室である冷蔵室 112内に 貯水タンク 72Aが設けられているので、野菜室 114の内容積に影響せず、食品収納 量に影響しない。また、使用者が外部力 水を供給する必要のあるタンクが製氷用と ミスト噴霧用とで一つとなる。これにより、ミスト噴霧専用の貯水タンクを別個に設ける 場合と比べて、使用者の貯留水の供給の手間を省くことができる。また貯水タンク 72 Aの水切れの可能性が低くなる。 [0231] In the refrigerator configured as described above, water is sent from the water tank 72A for ice making to the spray section 76 using the water supply path 73. Therefore, water can be supplied to the spray section 76 without providing a dedicated tank. And since the water storage tank 72A is provided in the refrigerator compartment 112 which is a separate storage room from the vegetable compartment 114, it does not affect the internal volume of the vegetable compartment 114 and does not affect the food storage capacity. In addition, there is only one tank for the ice making and mist spraying that requires the user to supply external water. As a result, compared with the case where a water storage tank dedicated to mist spraying is provided separately, it is possible to save the user from having to supply the stored water. Water tank 72 The possibility of A running out of water is reduced.
[0232] なお、本実施の形態においては、貯水タンク 72Aを設け、外部から供給された貯留 水が噴霧部 76に供給される。これ以外に、何らかの方法で野菜室 114内の空気内 に含まれている水分を抽出して噴霧部 76に供給してもよい。例えば、噴霧部 76を野 菜室 114の奥に配置し、実施の形態 4で説明した供給部 304を設けてもよい。このよ うに冷蔵庫の除霜水や庫内の結露水等を用いて、貯留水を確保できれば、使用者 が外部力 貯留水を供給する手間が力からず使い勝手がより向上する。  [0232] In the present embodiment, a water storage tank 72A is provided, and the stored water supplied from the outside is supplied to the spray section 76. In addition to this, water contained in the air in the vegetable compartment 114 may be extracted by some method and supplied to the spray unit 76. For example, the spray unit 76 may be disposed in the back of the vegetable compartment 114 and the supply unit 304 described in the fourth embodiment may be provided. Thus, if reserved water can be secured by using defrosted water in the refrigerator or dew condensation water in the refrigerator, the user will not have the trouble of supplying external force stored water, and the usability will be improved.
[0233] また、本実施の形態では、噴霧部 76への給水経路 73は貯水タンク 72A力も水を 吸い上げ、その後分岐して、製氷室 227と野菜室 114との両室に送水する。そのた め、部品点数の少ない、簡単な構成で両室に給水することができる。  [0233] In the present embodiment, the water supply path 73 to the spray section 76 also sucks water from the water storage tank 72A, and then branches to supply water to both the ice making room 227 and the vegetable room 114. Therefore, water can be supplied to both chambers with a simple configuration with a small number of parts.
[0234] なお、製氷用の貯水タンク 72Aをミスト噴霧用と兼用した上で、製氷室 227用、野 菜室 114用にそれぞれ独立した給水経路を設けてもよい。その場合には、それぞれ の必要応じたタイミングで随時水補給を行うことが可能となる。例えば両室同時に給 水が必要な時にでも任意に水を供給することができる。  [0234] In addition, after the water tank 72A for ice making is also used for mist spraying, independent water supply paths may be provided for the ice making room 227 and the vegetable room 114, respectively. In that case, it becomes possible to replenish water at any time as needed. For example, water can be supplied arbitrarily even when both rooms require water supply simultaneously.
[0235] また、噴霧部 76を野菜室 114天面の奥側に配置することで、貯水タンク 72Aを製 氷用と兼用する場合でも、冷蔵庫の奥側で給水経路 73を構成することができる。例 えば、給水経路 73を取り外して洗浄が可能な構成の場合でも、給水経路 73が短ぐ 略垂直状と 、つた簡単な経路とすることができる。このように簡略に構成されるので、 給水経路 73は洗浄しやすぐ衛生性が高い。また、噴霧部 76を野菜室 114天面の 奥側に配置することで、噴霧部 76と庫内収納食品との接触が防止される。そのため、 噴霧先端部の汚れ付着が防止され、噴霧先端部の噴霧能力が長寿命になる。また 安易に使用者が触れられないため、使用者への安全性が向上する。  [0235] Further, by arranging the spray section 76 on the back side of the vegetable room 114 top surface, the water supply path 73 can be configured on the back side of the refrigerator even when the water storage tank 72A is also used for ice making. . For example, even when the water supply path 73 is removed and cleaning is possible, the water supply path 73 is short and can be made a simple vertical path. Because of this simple configuration, the water supply path 73 is highly hygienic as soon as it is cleaned. Moreover, by arranging the spray unit 76 on the back side of the top of the vegetable compartment 114, contact between the spray unit 76 and the food stored in the cabinet is prevented. Therefore, the adhesion of the spray tip is prevented and the spraying capability of the spray tip is extended. In addition, since the user cannot easily touch it, the safety to the user is improved.
[0236] なお、実施の形態 6と同様に、噴霧部 76の野菜室 114内への露出部分にカバーを 設けることで、さらに汚れ付着防止効果や、安全性が向上する。  [0236] As in the sixth embodiment, by providing a cover on the exposed portion of the spray section 76 in the vegetable compartment 114, the effect of preventing the adhesion of dirt and the safety are further improved.
[0237] (実施の形態 9)  [0237] (Embodiment 9)
図 28、図 29は本発明の実施の形態 9における冷蔵庫の野菜室付近の側面断面図 と正面断面図である。図 30は図 29における A— A断面を示す要部断面図、図 31は B— B断面を示す要部断面図である。図 32は本実施の形態において噴霧されるミス トの粒子径分布割合を示すグラフである。 28 and 29 are a side sectional view and a front sectional view of the vicinity of the vegetable compartment of the refrigerator in the ninth embodiment of the present invention. 30 is a cross-sectional view of the main part showing the AA cross section in FIG. 29, and FIG. 31 is a cross-sectional view of the main part showing the B-B cross section. Figure 32 shows the mistakes made in this embodiment. It is a graph which shows the particle diameter distribution ratio of To.
[0238] この冷蔵庫の断熱箱体 617には、野菜室 114と貯蔵室 619、 620が設けられてい る。野菜室 114の前面開口部は扉 400Aで外気の流入が無いように閉塞されている  [0238] In the heat insulating box 617 of the refrigerator, a vegetable room 114 and storage rooms 619 and 620 are provided. The front opening of the vegetable compartment 114 is blocked by a door 400A so that there is no inflow of outside air.
[0239] 野菜室 114内部の背面と底面とには循環ダクト 624が設けられている。循環ダクト 6 24と断熱箱体 617との間には循環風路 625が形成されている。循環風路 625内に おいて、野菜室 114の背面にあたる部分にはミストを噴霧する噴霧部 626が設けられ ている。また噴霧部 626の上方には拡散部 627が配置されている。噴霧部 626は例 えば先行する実施の形態に開示された 、ずれかの噴霧部である。ある 、は一般的な 噴霧器でもよい。拡散部 627はたとえば送風ファンである。循環ダクト 624の垂直面 上部には複数の吐出口 628が設けられている。一方、底面には複数の吸入口 629 が設けられている。 [0239] A circulation duct 624 is provided in the back and bottom of the vegetable compartment 114. A circulation air passage 625 is formed between the circulation duct 6 24 and the heat insulating box 617. A spray portion 626 for spraying mist is provided in a portion corresponding to the back of the vegetable compartment 114 in the circulation air passage 625. A diffusion unit 627 is disposed above the spray unit 626. The spray unit 626 is, for example, any spray unit disclosed in the preceding embodiment. There may be a general sprayer. The diffusion unit 627 is a blower fan, for example. A plurality of discharge ports 628 are provided at the upper part of the vertical surface of the circulation duct 624. On the other hand, a plurality of suction ports 629 are provided on the bottom surface.
[0240] 循環風路 625と、循環風路 625を構成する循環ダクト 624と、循環ダクト 624に設け られた吐出口 628と吸入口 629と、拡散部 627とはミスト循環部 630を構成して ヽる。 また、ミストの粒子径を選択する選択部 631は、拡散部 627と噴霧部 626により構成 されている。選択部 631はミスト噴霧装置でもある。  [0240] Circulation air passage 625, circulation duct 624 constituting circulation air passage 625, discharge port 628 and suction port 629 provided in circulation duct 624, and diffusion portion 627 constitute mist circulation portion 630. Speak. The selection unit 631 for selecting the particle diameter of the mist is composed of a diffusion unit 627 and a spray unit 626. The selection unit 631 is also a mist spraying device.
[0241] 噴霧部 626の下方には、循環風路 625から断熱箱体 617外へ余剰な水を排出す るドレン 632が設けられている。野菜室 114の天面と循環ダクト 624の底部には、そ れぞれ温度センサ 633、 634が設けられている。循環ダクト 624の底部には野菜室 1 14の下部を加温するヒータ 638が設けられて!/、る。  [0241] Below the spray unit 626, a drain 632 for discharging excess water from the circulation air passage 625 to the outside of the heat insulation box 617 is provided. Temperature sensors 633 and 634 are provided at the top of the vegetable compartment 114 and the bottom of the circulation duct 624, respectively. At the bottom of the circulation duct 624 is a heater 638 that heats the lower part of the vegetable compartment 1 14!
[0242] 扉 400Aには左右 2対で野菜室 114内に延伸された板状のスライドレール 635が設 けられており、食品収納容器 (以下、容器) 636が載置されている。スライドレール 63 5により、扉 400Aは水平方向に引き出して開閉される。吐出口 628は容器 636の外 縁部よりも高い位置にあり、ミストが必ず容器 636に入るようになつている。また、容器 636の底面には複数の通気口 637力設けられて!/、る。  [0242] The door 400A is provided with plate-like slide rails 635 extending into the vegetable compartment 114 in two pairs on the left and right sides, and a food storage container (hereinafter referred to as a container) 636 is placed thereon. With the slide rail 635, the door 400A is pulled out and opened in the horizontal direction. The discharge port 628 is positioned higher than the outer edge of the container 636 so that the mist always enters the container 636. In addition, a plurality of ventilation holes 637 are provided on the bottom surface of the container 636.
[0243] 以上のように構成された冷蔵庫の動作、作用を説明する。野菜室 114の上下には、 野菜室 114よりも低い温度帯に設定された貯蔵室 619、 620が配置されている。野 菜室 114はこれらの貯蔵室 619、 620により自然に冷却されている。 [0244] 扉 400Aを手前方向水平に引き出し、容器 636に農作物を入れた後、扉 400Aを 閉めると、扉開放検知部（図示せず）により閉扉状態が検知され、噴霧部 626がミスト を噴霧し始める。噴霧されたミストは、噴霧部 626の上方に配置された拡散部 627に より上方に向力つて上昇し、吐出口 628を通り野菜室 114内に拡散噴霧される。 [0243] The operation and action of the refrigerator configured as described above will be described. Above and below the vegetable compartment 114, storage rooms 619 and 620 that are set in a lower temperature zone than the vegetable compartment 114 are arranged. The vegetable room 114 is naturally cooled by these storage rooms 619, 620. [0244] When door 400A is pulled out horizontally in the front direction, and after putting crops into container 636, door 400A is closed, the door opening detection unit (not shown) detects the closed state, and spray unit 626 sprays mist. Begin to. The sprayed mist is lifted upward by the diffusion part 627 disposed above the spraying part 626, and diffused and sprayed into the vegetable compartment 114 through the discharge port 628.
[0245] 噴霧部 626には、例えば超音波により水を微粒子化して噴霧するものを用いれば よい。噴霧されるミストの粒子径は図 32に示すように分布する。野菜室 114内に万遍 なくミストを拡散させるには、例えば、野菜室 114内でのミストの滞空時間をなるベく 長時間にすることが考えられる。このようにすれば、空気の循環による拡散が確実に 行われる。野菜室 114内でのミストの滞空時間延ばすためには、ミスト粒子径を比較 的小さくする必要がある。図 32に示すように、例えばある効果を得たい場合、その効 果に応じた所定の粒子径 X以下の水粒子を取り出して拡散噴霧すればょ 、。すなわ ち、例えば野菜室 114内に収納された農作物表面の有害物質を除去するためには、 実施の形態 5で述べたように粒子径が 0. 003 μ m以上 20 μ m以下のミストを選択的 に取り出せばよい。  [0245] As the spraying unit 626, for example, water sprayed by atomizing water with ultrasonic waves may be used. The particle size of the sprayed mist is distributed as shown in FIG. In order to spread the mist evenly in the vegetable compartment 114, for example, it is conceivable to make the mist staying time in the vegetable compartment 114 as long as possible. In this way, diffusion by air circulation is ensured. In order to extend the mist staying time in the vegetable compartment 114, it is necessary to make the mist particle size relatively small. As shown in FIG. 32, for example, when it is desired to obtain an effect, water particles having a predetermined particle diameter X or less corresponding to the effect can be taken out and sprayed by diffusion. That is, for example, in order to remove harmful substances on the surface of agricultural products stored in the vegetable compartment 114, as described in Embodiment 5, a mist having a particle size of 0.003 μm to 20 μm is used. Select it selectively.
[0246] 噴霧部 626により噴霧されたミストのうち、粒子径が Xを超える粒子はその自重によ り下方に落下する。そして粒子径 X以下の比較的軽量な粒子が拡散部 627により上 昇する。これにより、一定の粒子径以下のミスト粒子を選択的に取り出すことが可能に なる。なお、所望する粒子径 Xは自由に設定することができ、噴霧部 626の運転度合 い、拡散部 627の運転度合い、噴霧部 626と拡散部 627との距離によって調整する ことが可能である。この運転度合いとは、例えば噴霧部 626に超音波振動方式の噴 霧装置を用いた場合の振動周波数や、拡散部 627に送風ファンを用いた場合のファ ン回転数のことを指す。また、下方に落下した粒子径 Xを超えるミストはドレン 632か ら野菜室 114外に排出される。  [0246] Of the mist sprayed by the spray section 626, particles having a particle diameter exceeding X fall downward due to their own weight. Then, relatively light particles having a particle diameter of X or less rise by the diffusion part 627. Thereby, it becomes possible to selectively take out mist particles having a certain particle diameter or less. The desired particle size X can be freely set and can be adjusted by the operating degree of the spraying part 626, the operating degree of the diffusing part 627, and the distance between the spraying part 626 and the diffusing part 627. This operating degree refers to, for example, the vibration frequency when an ultrasonic vibration type spraying device is used for the spray unit 626 and the fan rotation speed when a blower fan is used for the diffusion unit 627. Also, the mist exceeding the particle size X that has dropped down is discharged from the drain 632 to the outside of the vegetable compartment 114.
[0247] 吐出口 628は容器 636よりも上方にあるため、野菜室 114内に噴霧されたミストは 容器 636の上方、すなわち収納された農作物の上方から降り注ぐ。噴霧されたミスト は、容器 636と農作物との間隙、あるいは農作物と農作物との間隙を下方に落下して いく。ここで、複数の吐出口 628の端部間距離は、容器 636の横幅と同等程度の寸 法に設定されている。そのため、横方向へのミスト濃度の分布バラツキが抑制される。 [0248] 容器 636の底面には複数の通気口 637が設けられている。容器 636内のミストは通 気口 637から野菜室 114の下部へ抜けていく。したがって、ミストの凝集した水は容 器 636内に停留することはなぐ底部には水が溜まらない。なお、本実施の形態では 、底面に通気口 637が設けられている力 底面のみならず容器 636の側壁面に設け られてちよい。 [0247] Since the discharge port 628 is above the container 636, the mist sprayed in the vegetable compartment 114 pours from above the container 636, that is, from above the stored crop. The sprayed mist falls downward in the gap between the container 636 and the crop, or the gap between the crop and the crop. Here, the distance between the end portions of the plurality of discharge ports 628 is set to a size approximately equal to the lateral width of the container 636. For this reason, the distribution variation of the mist concentration in the lateral direction is suppressed. [0248] A plurality of vent holes 637 are provided on the bottom surface of the container 636. The mist in the container 636 passes from the air outlet 637 to the bottom of the vegetable compartment 114. Therefore, the water in which the mist is agglomerated does not stay in the container 636, and no water accumulates at the bottom. In the present embodiment, the force may be provided on the side wall surface of the container 636 as well as the force bottom surface provided with the vent 637 on the bottom surface.
[0249] 通気口 637を通過したミストは、吸入口 629より循環風路 625内に戻り、その一部は 拡散部 627によって再び野菜室 114内に噴霧される。また、一部は大きな水滴となり 、ドレン 632から野菜室 114外に排出される。この排水を効率良く行うため、図 28に 示すように循環風路 625の下部はドレン 632に向けて傾斜を設けられていることが好 ましい。なお、吸入口 629と通気口 637とは実質的に同一位置に設けられて連通し て!ヽれば循環の抵抗が少なく効率がよ!、。  [0249] The mist that has passed through the ventilation port 637 returns to the circulation air passage 625 from the suction port 629, and a part thereof is sprayed again into the vegetable compartment 114 by the diffusion unit 627. Some of the water droplets are discharged from the drain 632 to the outside of the vegetable compartment 114. In order to perform this drainage efficiently, it is preferable that the lower part of the circulation air passage 625 is inclined toward the drain 632 as shown in FIG. The suction port 629 and the ventilation port 637 are provided at substantially the same position and communicated with each other.
[0250] なお、容器 636内のミスト分布を最適化し最も均一にするためには、拡散部 627の 運転度合いを調整したり、吐出口 628、通気口 637、吸入口 629の位置と面積とを調 整したりことが有効である。  [0250] In order to optimize and make the mist distribution in the container 636 the most uniform, the operating degree of the diffusion part 627 is adjusted, and the positions and areas of the discharge port 628, the vent 637, and the suction port 629 are adjusted. It is effective to make adjustments.
[0251] なお、噴霧部 626には水を連続的に供給する必要がある。これには貯水タンクを設 けて定期的に水を補充する方法や、貯蔵室内の水分を結露回収する水回収構造を 構築すればよい。これらの構成は先行する実施の形態で例示されている。さら〖こは、 貯水タンクと水回収構造とを併用して用いてもよい。  [0251] It is necessary to continuously supply water to the spray section 626. This can be achieved by installing a water storage tank and replenishing water periodically, or by constructing a water recovery structure that collects and condenses water in the storage chamber. These configurations are exemplified in the preceding embodiments. Sarakuko may be used in combination with a water storage tank and a water recovery structure.
[0252] 夜間などで扉 400Aの開閉がない場合は湿度の低下度合いは緩やかであり、ミスト の噴霧を一定時間停止しても差支えない。この場合、図示しない扉開放検知部によ り扉閉から一定時間経過したことを判断すると、噴霧部 626の運転と拡散部 627の運 転とを停止させる。同時に循環ダクト 624に設けられたヒータ 638に通電し野菜室 11 4の下部を加温する。ヒータ 638の加温制御は、野菜室 114天面に設けられた温度 センサ 633と、循環ダクト 624底部に設けられた温度センサ 634の温度差がある一定 値になるように制御される。これらのことにより、野菜室 114の上部と下部に温度差が でき、空気の自然対流が促進される。なお、ヒータ 638は広範囲に、実質的に均一に 発熱するヒータであればよぐ線状ヒータやシート状ヒータが適用可能である。また、 温度差を設ける方法はヒータ 638を用いることに限定されない。貯蔵室 19の温度を 貯蔵室 20の温度よりも低く制御してもよ 、。 [0252] If the door 400A is not opened or closed at night, etc., the degree of decrease in humidity is moderate, and it is safe to stop spraying mist for a certain period of time. In this case, when it is determined by a door opening detection unit (not shown) that a certain time has elapsed since the door was closed, the operation of the spray unit 626 and the operation of the diffusion unit 627 are stopped. At the same time, the heater 638 provided in the circulation duct 624 is energized to heat the lower part of the vegetable compartment 114. Heating control of the heater 638 is controlled so that the temperature difference between the temperature sensor 633 provided on the top surface of the vegetable compartment 114 and the temperature sensor 634 provided at the bottom of the circulation duct 624 becomes a certain value. As a result, there is a temperature difference between the upper and lower parts of the vegetable compartment 114, and natural convection of air is promoted. The heater 638 may be a linear heater or a sheet heater as long as the heater generates heat substantially uniformly over a wide range. Further, the method of providing the temperature difference is not limited to using the heater 638. The temperature of the storage room 19 You can control it below the temperature of the storage room 20.
[0253] 以上のように、本実施の形態の冷蔵庫は、断熱箱体 617と霧部 626と拡散部 627と を有する。断熱箱体 617は、断熱区画された貯蔵室 619, 620と野菜室 114とを有 する。噴霧部 626は野菜室 114内に設けられ、ミストを噴霧する。拡散部 627は噴霧 されたミストを拡散させる。噴霧部 626と拡散部 627とはミスト噴霧装置を構成してい る。噴霧されたミストが拡散部 627によって野菜室 114内に拡散噴霧されることにより 、野菜室 114内のミスト濃度が均一化される。これにより農作物の周囲に効率よくミス トが供給される。そのためミストの噴霧量が最小限に抑えられる。よって結露を防ぐこ とができ、かつ農作物からの有害物質除去も同時に行うことができる。  [0253] As described above, the refrigerator according to the present embodiment includes the heat insulating box 617, the fog part 626, and the diffusion part 627. The heat insulation box 617 has storage compartments 619 and 620 and a vegetable compartment 114 which are insulated. The spraying unit 626 is provided in the vegetable compartment 114 and sprays mist. The diffusion unit 627 diffuses the sprayed mist. The spray unit 626 and the diffusion unit 627 constitute a mist spray device. The sprayed mist is diffused and sprayed into the vegetable compartment 114 by the diffusion unit 627, so that the mist concentration in the vegetable compartment 114 is made uniform. This efficiently supplies mist around the crops. This minimizes the amount of mist sprayed. Therefore, dew condensation can be prevented and harmful substances can be removed from crops at the same time.
[0254] また、野菜室 114内にミスト循環部 630が設けられている。これにより、さらにミストが 野菜室 114内の隅々まで供給され、ミストの噴霧量が低減される。また、ミスト循環部 630が循環風路 625と、循環風路 625を構成する循環ダクト 624と、循環ダクト 624 に設けられた吐出口 628と吸入口 629と、拡散部 627とから構成されている。そのた め、ミスト循環量と分布との調整が容易になり、よりミストの噴霧量が低減される。  [0254] Also, a mist circulation section 630 is provided in the vegetable compartment 114. Thereby, mist is further supplied to every corner in the vegetable compartment 114, and the spray amount of mist is reduced. Further, the mist circulation section 630 includes a circulation air passage 625, a circulation duct 624 constituting the circulation air passage 625, a discharge port 628 and a suction port 629 provided in the circulation duct 624, and a diffusion portion 627. . Therefore, adjustment of the amount of mist circulation and distribution becomes easy, and the amount of mist sprayed is further reduced.
[0255] また、吐出口 628が野菜室 114内に収納された農作物よりも高い位置に設けられる ことが好ましい。これにより、常に農作物の上方力 ミストが噴霧され、農作物の量に かかわらず農作物全体にミストが供給される。また、吸入口 629が野菜室 114内に収 納された農作物よりも下方に設けられることが好ましい。これにより、容器 228Cの底 部まで確実にミストが供給される。  [0255] In addition, it is preferable that the discharge port 628 is provided at a position higher than the crops stored in the vegetable compartment 114. As a result, the upward force mist of the crop is always sprayed, and the mist is supplied to the entire crop regardless of the amount of the crop. In addition, the suction port 629 is preferably provided below the crops stored in the vegetable compartment 114. This ensures that the mist is supplied to the bottom of the container 228C.
[0256] また、選択部 631は、噴霧部 626により噴霧されたミストの内、一定の粒子径以下 のミストを選択する。これにより、微小ミストが選択的に噴霧される。そのため野菜室 1 14内にミストが長時間留まり、かつ分散し、農作物に確実に供給される。また、選択 部 631は、拡散部 627の下方に噴霧部 626を設けることにより構成されている。これ により噴霧されたミストの内、一定の粒子径以下の軽い粒子が選択的に取り出されて 野菜室 114内に噴霧される。  [0256] In addition, the selection unit 631 selects a mist having a particle diameter equal to or smaller than a certain particle size from the mist sprayed by the spray unit 626. Thereby, the minute mist is selectively sprayed. Therefore, the mist stays in the vegetable room 1 14 for a long time and is dispersed and supplied to the crops reliably. The selection unit 631 is configured by providing a spray unit 626 below the diffusion unit 627. As a result, light particles having a certain particle diameter or less are selectively taken out of the sprayed mist and sprayed into the vegetable compartment 114.
[0257] また、本実施の形態の冷蔵庫では、野菜室 114の上部と下部とに温度差を設けら れている。これにより、野菜室 114内の空気の自然対流が促進され、噴霧されたミスト が野菜室 114内に拡散しやすくなる。また、同時に噴霧部 626、拡散部 627の一時 停止が可能となり、構成部品の信頼性が向上する。 [0257] Further, in the refrigerator of the present embodiment, a temperature difference is provided between the upper part and the lower part of vegetable room 114. Thereby, the natural convection of the air in the vegetable compartment 114 is promoted, and the sprayed mist easily diffuses in the vegetable compartment 114. At the same time, the spraying part 626 and the diffusion part 627 are temporarily Stopping is possible, improving the reliability of the component parts.
[0258] (実施の形態 10)  [Embodiment 10]
図 33は本発明の実施の形態 10における冷蔵庫の野菜室の側断面図である。図 3 4はその野菜室の側断面図で、図 35はそのミスト噴霧装置の要部拡大図である。図 3 6は図 33に示す冷蔵庫におけるオゾン水ミストの農薬除去性能を示す図である。  FIG. 33 is a side sectional view of the vegetable compartment of the refrigerator in the tenth embodiment of the present invention. Fig. 34 is a side sectional view of the vegetable compartment, and Fig. 35 is an enlarged view of the main part of the mist spraying device. FIG. 36 is a diagram showing the pesticide removal performance of ozone water mist in the refrigerator shown in FIG.
[0259] この冷蔵庫が実施の形態 3の図 5に示す冷蔵庫と異なる点は、野菜室 114の上部 背面にミスト噴霧装置 21が設けられている点である。それ以外の基本的な構成は図 5に示す冷蔵庫と同様である。  This refrigerator is different from the refrigerator shown in FIG. 5 of Embodiment 3 in that a mist spraying device 21 is provided on the upper rear surface of the vegetable compartment 114. The other basic configuration is the same as that of the refrigerator shown in FIG.
[0260] ミスト噴霧装置 21はオゾン水を貯水する貯水槽 22と、オゾン水をェジェクタ方式で 噴霧する噴霧ノズル (以下、ノズル） 23と貯水槽 22に液体を供給する供給部である 貯水タンク 72を有する。ノズル 23は噴霧先端部を構成している。貯水槽 22は断熱箱 体 110内に設けられ、液体である水を保持する保持部である。貯水槽 22上部にはォ ゾン水供給口 24が設けられて ヽる。高電圧方式でオゾンを発生するオゾン発生体 2 5は野菜室 114の近傍に設けられ、オゾン水経路 27に連結されている。オゾン水経 路 27には貯水タンク 72より配管された水供給経路 28が設けられている。また、ノズ ル 23の先端近傍には高電圧を印加するための環状の電極 29と、電源 30とが設けら れている。ノズル 23と電極 29と電源 30とは噴霧部を構成している。また、貯水タンク 72は、断熱箱体 110の、噴霧先端部が設けられた区画である野菜室 114とは別の 区画である冷蔵室 112内に設けられて 、る。  [0260] The mist spraying device 21 is a water storage tank 22 for storing ozone water, a spray nozzle (hereinafter referred to as nozzle) 23 for spraying ozone water by an ejector method, and a supply unit for supplying liquid to the water storage tank. Have The nozzle 23 constitutes the spray tip. The water storage tank 22 is provided in the heat insulating box 110 and is a holding unit that holds water as a liquid. An ozone water supply port 24 is provided in the upper part of the water storage tank 22. An ozone generator 25 that generates ozone by a high voltage method is provided in the vicinity of the vegetable compartment 114 and is connected to the ozone water path 27. The ozone water path 27 is provided with a water supply path 28 piped from a water storage tank 72. In addition, an annular electrode 29 for applying a high voltage and a power source 30 are provided near the tip of the nozzle 23. The nozzle 23, the electrode 29, and the power source 30 constitute a spray portion. The water storage tank 72 is provided in the refrigerator compartment 112 which is a compartment different from the vegetable compartment 114 which is a compartment provided with the spray tip of the heat insulating box 110.
[0261] 以上のように構成されたミスト噴霧装置 21の動作、作用を説明する。まず、オゾン発 生体 25によってオゾンガスが生成される。貯水タンク 72から水供給経路 28を介して 供給された水と、生成されたオゾンガスとは混合されオゾン水となる。このオゾン水は オゾン水経路 27を経て、オゾン水供給口 24より貯水槽 22内に供給され貯えられる。 貯水槽 22内のオゾン水はノズル 23より野菜室 114内にミストとなって噴霧される。そ の際、ノズル 23の先端近傍に設けられた環状の電極 29に対して電源 30より高電圧 が印加される。これによりノズル 23より噴霧されたオゾン水ミストには静電付加される。  [0261] The operation and action of the mist spraying device 21 configured as described above will be described. First, ozone gas is generated by the ozone generator 25. The water supplied from the water storage tank 72 via the water supply path 28 and the generated ozone gas are mixed to form ozone water. This ozone water is supplied and stored in the water storage tank 22 from the ozone water supply port 24 via the ozone water path 27. The ozone water in the water storage tank 22 is sprayed as a mist from the nozzle 23 into the vegetable compartment 114. At that time, a high voltage is applied from the power source 30 to the annular electrode 29 provided near the tip of the nozzle 23. Thereby, the ozone water mist sprayed from the nozzle 23 is electrostatically added.
[0262] 図 36はこの構成における、トマト付着農薬のオゾン水ミストによる除去効果を示して いる。実験は以下のような方法により行う。マラチオンを 3〜5ppm濃度となるよう付着 させたミニトマトを野菜室 114内に保存する。その際、オゾン水ミストを 20分間隔で 10 秒間噴霧する間欠噴霧にて、 12時間噴霧する。このような噴霧処理後のミニトマトに 残留するマラチオン濃度をガスクロマトグラフィーにて測定し、除去率を算出する。な お比較のため、同様にマラチオンを付着させ、ミスト噴霧装置なしの野菜室にて保存 したミニトマトについて同様にマラチオン濃度を測定する。 [0262] Figure 36 shows the removal effect of ozone water mist on tomato-attached pesticides in this configuration. The experiment is performed by the following method. Adhering malathion to a concentration of 3-5ppm Store the cherry tomatoes in the vegetable compartment 114. At that time, ozone water mist is sprayed for 12 hours by intermittent spraying for 10 seconds at intervals of 20 minutes. The concentration of malathion remaining on the cherry tomato after such spraying is measured by gas chromatography, and the removal rate is calculated. For comparison, the concentration of malathion is also measured for cherry tomatoes stored in a vegetable room without a mist sprayer.
[0263] 図 36に示すように、比較実験での除去率が 20%であるのに対し、ミスト噴霧した場 合は除去率力 0%であり、約 2倍の除去効果を示している。  [0263] As shown in Fig. 36, the removal rate in the comparative experiment was 20%, whereas when the mist was sprayed, the removal rate power was 0%, indicating about twice the removal effect.
[0264] 以上のように、図 33〜図 35に示す構成では、野菜室 114近傍でオゾンと水とを混 合して生成したオゾン水をミスト噴霧装置 21にて野菜室 114内に静電付加されたミス トを噴霧する。これにより、噴霧された微細ミストが野菜室 114壁面と野菜や果物表面 に均一に付着し、壁面や野菜や果物表面の微細な孔にミストが入り込む。そして微 細な孔の内部の汚れや有害物質を浮き上がらせるので、汚れや有害物質の除去効 果が高まる。また、野菜表面の有害物質の酸ィ匕分解効果を高めるとともに、野菜の保 湿性も向上させる。  As described above, in the configurations shown in FIGS. 33 to 35, ozone water generated by mixing ozone and water in the vicinity of the vegetable compartment 114 is electrostatically introduced into the vegetable compartment 114 by the mist spraying device 21. Spray the added mist. As a result, the sprayed fine mist uniformly adheres to the wall surface of the vegetable compartment 114 and the surface of the vegetable or fruit, and the mist enters the fine holes on the wall surface, the vegetable or fruit surface. In addition, dirt and harmful substances inside the fine holes are lifted, so that the effect of removing dirt and harmful substances is enhanced. In addition, it enhances the acid and sour decomposition effect of harmful substances on the surface of vegetables and improves the moisture retention of vegetables.
[0265] また、オゾンミストに静電付加することにより、オゾンミスト中の水分子がラジカルィ匕し 、 OHラジカルが生成する。そのため、オゾンの酸化力に加え、 OHラジカルの酸化 力によって、除菌ゃ脱臭及び有害物質分解性能が高まる。  [0265] Further, by electrostatically adding to the ozone mist, water molecules in the ozone mist are radicalized to generate OH radicals. For this reason, in addition to the oxidizing power of ozone, the oxidizing power of OH radicals enhances the performance of sterilization and deodorization and decomposition of harmful substances.
[0266] 貯水タンク 72は噴霧部が設けられた区画である野菜室 114とは別の区画である冷 蔵室 112内に設けられている。この構成では、貯水タンク 72の配置が噴霧部の配置 に影響されない。そのため、貯水タンク 72内への水の補給や貯水タンク 72内の清掃 が容易となるような任意の位置に貯水タンク 72を設けることができる。このように使用 者の使 、勝手が向上する。これは実施の形態 8の貯水タンク 72Aにつ 、ても同様で ある。  [0266] The water storage tank 72 is provided in the refrigerator compartment 112, which is a separate compartment from the vegetable compartment 114, which is the compartment provided with the spray section. In this configuration, the arrangement of the water storage tank 72 is not affected by the arrangement of the spray section. Therefore, the water storage tank 72 can be provided at an arbitrary position that facilitates replenishment of water into the water storage tank 72 and cleaning of the water storage tank 72. In this way, the use and convenience of the user are improved. The same applies to the water storage tank 72A of the eighth embodiment.
[0267] 上記構成では、オゾン水経路 27で水とオゾンとを混合してオゾン水を生成する。こ れ以外に、ミスト噴霧装置 21の近傍にオゾン発生体を設けてオゾンを発生させ、ノズ ル 23内で水と混合してオゾン水ミストとして噴霧してもよい。あるいは、貯水槽 22内に オゾン発生部 25を設けてもよい。そのような構成について説明する。図 37は本発明 の実施の形態 10における他のミスト噴霧装置の要部拡大図である。高電圧方式でォ ゾンを発生するオゾン発生体 25は貯水槽 22内の一画に設けられている。それ以外 の構成は図 33〜図 35と同様である。 In the above configuration, ozone water is generated by mixing water and ozone in the ozone water path 27. In addition, an ozone generator may be provided in the vicinity of the mist spraying device 21 to generate ozone, which may be mixed with water in the nozzle 23 and sprayed as ozone water mist. Alternatively, the ozone generator 25 may be provided in the water tank 22. Such a configuration will be described. FIG. 37 is an enlarged view of a main part of another mist spraying apparatus according to Embodiment 10 of the present invention. High voltage method The ozone generator 25 that generates zon is provided in a portion of the water tank 22. The rest of the configuration is the same as in Figs.
[0268] 以上のように構成された冷蔵庫のミスト噴霧装置について、以下その動作、作用を 説明する。まず、水が貯水タンク 72から給水され、水供給口 31より貯水槽 22内に供 給され、貯留される。次にオゾン発生体 25に高電圧が印加され、放電によって水中 溶存酸素が電子との衝突により酸素原子に解離される。そして、酸素原子は溶存酸 素分子と結合してオゾンが発生するとともに、水分子と反応して OHラジカルを同時に 生成する。発生したオゾンは貯留水に溶存し、オゾン水を生成する。このようにして生 成したオゾン水はノズル 23より野菜室 114内にミストとなって噴霧される。その際、ノ ズル 23の先端近傍に設けられた環状の電極 29に対して電源 30より高電圧が印加さ れ、ノズル 23より噴霧されたオゾン水ミストは静電付加される。  [0268] The operation and action of the refrigerator mist spraying apparatus configured as described above will be described below. First, water is supplied from the water storage tank 72, supplied from the water supply port 31 into the water storage tank 22, and stored. Next, a high voltage is applied to the ozone generator 25, and dissolved oxygen in the water is dissociated into oxygen atoms by collision with electrons. Oxygen atoms combine with dissolved oxygen molecules to generate ozone and react with water molecules to simultaneously generate OH radicals. The generated ozone is dissolved in the stored water to generate ozone water. Ozone water generated in this way is sprayed as mist from the nozzle 23 into the vegetable compartment 114. At that time, a high voltage is applied from the power source 30 to the annular electrode 29 provided near the tip of the nozzle 23, and the ozone water mist sprayed from the nozzle 23 is electrostatically added.
[0269] 以上のように図 37の構成では、放電方式でオゾンを発生するオゾン発生部 25が貯 水槽 22内の貯留水中に浸漬されている。これにより、貯水槽 22内の貯留水中の溶 存酸素を解離して、オゾンと OHラジカルとが発生する。原料酸素が水中溶存酸素の ため、オゾン生成量は空中放電に比べ、はるかに少ないことから、発生したオゾンは 貯留水中に溶存した状態となる。このように特殊材料を必要としな 、簡便な構造で、 人体に安全でかつオゾン臭くな 、低濃度のオゾンと、オゾンよりも酸ィ匕力の強 、OH ラジカルとを含むオゾン水を生成し、噴霧することができる。  As described above, in the configuration of FIG. 37, the ozone generator 25 that generates ozone by the discharge method is immersed in the stored water in the water tank 22. This dissociates dissolved oxygen in the stored water in the water tank 22, generating ozone and OH radicals. Since the raw material oxygen is dissolved in water, the amount of ozone generated is much less than in air discharge, so the generated ozone is dissolved in the stored water. In this way, it does not require special materials, and it generates ozone water that has a simple structure, is safe for the human body and does not smell like ozone, and contains low-concentration ozone, stronger acidity than ozone, and OH radicals. Can be sprayed.
[0270] 次に、本実施の形態におけるさらに異なるミスト噴霧装置について説明する。図 38 は本発明の実施の形態 10における別の冷蔵庫のミスト噴霧装置の要部拡大図であ る。  [0270] Next, still another mist spraying apparatus in the present embodiment will be described. FIG. 38 is an enlarged view of a main part of another mist spraying device for a refrigerator according to Embodiment 10 of the present invention.
[0271] ミスト噴霧装置 21は貯水槽 22と貯留水供給部 40と毛細管供給構造体 42と電極 4 3とを有する。貯水槽 22はオゾン水や酸性水と ヽつた機能水ある!/ヽは水を貯留する。 貯留水供給部 40は貯水槽 22に貯留水を供給する。毛細管供給構造体 42の一端は 貯水槽 22内に位置し、他端は野菜室 114内に噴霧先端部 41として形成されている 。電極 43は貯水槽 22に接続され、貯水槽 22内の貯留水に高電圧を印加する。  [0271] The mist spraying device 21 includes a water storage tank 22, a stored water supply unit 40, a capillary supply structure 42, and an electrode 43. Reservoir 22 has functional water combined with ozone water and acid water! /! Stores water. The stored water supply unit 40 supplies the stored water to the water tank 22. One end of the capillary supply structure 42 is located in the water reservoir 22, and the other end is formed as a spray tip 41 in the vegetable compartment 114. The electrode 43 is connected to the water tank 22 and applies a high voltage to the water stored in the water tank 22.
[0272] 以上のように構成されたミスト噴霧装置 21について、以下その動作、作用を説明す る。まず、貯水槽 22内に機能水あるいは水が貯留水供給部 40から供給され貯留さ れる。次に貯水槽 22内の電極 43に高電圧が印加されると、噴霧先端部 41とその周 囲との間に存在する電界によって噴霧先端部 41から複数の液糸が引き出される。さ らには帯電した液滴に分散されてミストとなり野菜室 114内に噴霧される。 [0272] The operation and action of the mist spraying device 21 configured as described above will be described below. First, functional water or water is supplied to the water storage tank 22 from the storage water supply unit 40 and stored. It is. Next, when a high voltage is applied to the electrode 43 in the water storage tank 22, a plurality of liquid yarns are drawn from the spray tip 41 by the electric field that exists between the spray tip 41 and its surroundings. Further, it is dispersed in charged droplets to become mist and sprayed into the vegetable compartment 114.
[0273] 以上のように図 38の構成では、貯水槽 22内の貯留水に直接高電圧を印加して、 静電付加された貯留水が噴霧される。これにより、ミストの静電付加率が増加し、ミスト の微細化と食品表面への付着率が向上する。 As described above, in the configuration of FIG. 38, a high voltage is directly applied to the stored water in the water storage tank 22, and the electrostatically added stored water is sprayed. As a result, the electrostatic addition rate of mist is increased, and the mist is refined and the adhesion rate to the food surface is improved.
[0274] また、機能水を微細化することによりミストの大気中での滞空時間が長くなる。これ により、機能水微細ミストの庫内浮遊菌ゃ庫内拡散臭気物質との接触機会が増加し[0274] Further, by miniaturizing the functional water, the mist staying time in the atmosphere becomes longer. This increases the chance of contact of the functional water fine mist with the floating odorant in the warehouse.
、除菌、脱臭性能が高まる。 , Sterilization and deodorization performance is enhanced.
[0275] なお、本実施の形態において、水は貯水タンク 72より供給される。これ以外に、冷 蔵庫のドレン水を利用し、貯水槽内にドレン水を給水する構成とすれば、貯水タンク[0275] In the present embodiment, water is supplied from the water storage tank 72. In addition to this, if the drain water in the refrigerator is used and the drain water is supplied into the water tank,
72に水を入れる手間を省くことができる。 This saves you the trouble of putting water in 72.
[0276] 次に、実施の形態 11と共に、本発明の収納庫を冷蔵庫に適用した例について説 明する。 [0276] Next, an example in which the storage of the present invention is applied to a refrigerator together with Embodiment 11 will be described.
[0277] 本発明の収納庫は、箱体とミスト噴霧装置に加え、分解部を有する。ミスト噴霧装置 はミストを発生させ、箱体内の貯蔵室の内部に収納された野菜表面に付着した残留 農薬等の有害物質を浮き上がらせる。分解部は、この浮き上がった有害物質を分解 する。この構成では、噴霧したミストが野菜や果物表面の微細な凹部に入り込み、凹 部に残留している農薬や有害物質を物理的作用により、少量の水で農薬等有害物 質を浮き上がらせる。そして浮き上がった農薬等の有害物質を分解部が酸化分解す るので、食品安全性が向上する。  [0277] The storage of the present invention has a disassembling part in addition to the box and the mist spraying device. The mist spraying device generates mist and raises harmful substances such as residual agricultural chemicals attached to the surface of vegetables stored in the storage room inside the box. The decomposition unit decomposes the toxic substances that have risen. In this configuration, the sprayed mist enters the fine recesses on the surface of vegetables and fruits, and the pesticides and harmful substances remaining in the recesses are physically lifted by a small amount of water. And the decomposition part oxidizes and decomposes harmful substances such as agricultural chemicals that have been lifted, which improves food safety.
[0278] また本発明の収納庫は、箱体とミスト噴霧装置と分解部を有し、ミスト噴霧装置は酸 化分解性ミストを噴霧する。この酸ィ匕分解性ミストによって野菜表面に付着した残留 農薬等の有害物質が分解される。分解部は、このようにして生成された分解生成物 や、酸化分解性ミストとの未反応物である残留農薬等の有害物質を分解する。これに より、分解生成物や未反応の有害物質を無害にすることができるので、安全性が向 上する。  [0278] Further, the storage of the present invention has a box, a mist spraying device, and a decomposition unit, and the mist spraying device sprays an acidolytic mist. This acid-decomposable mist decomposes harmful substances such as residual agricultural chemicals attached to the vegetable surface. The decomposition unit decomposes the decomposition products generated in this way and harmful substances such as residual agricultural chemicals that are unreacted with the oxidative degradable mist. As a result, decomposition products and unreacted harmful substances can be made harmless, which improves safety.
[0279] また本発明の収納庫における分解部は、紫外線を貯蔵庫内の農作物に照射する。 これにより、野菜に悪影響を与えることなく残留農薬等の有害物質を無害にすること ができる。また簡単な構成で分解部が構成される。そのため構成部品を少なくするこ とができ、小スペースで分解効果を実現することができる。 [0279] The decomposition unit in the storage of the present invention irradiates the crops in the storage with ultraviolet rays. As a result, harmful substances such as residual agricultural chemicals can be made harmless without adversely affecting the vegetables. In addition, the disassembly unit is configured with a simple configuration. Therefore, the number of components can be reduced, and the disassembly effect can be realized in a small space.
[0280] また本発明の収納庫における分解部は、波長が 220nm以上 400nm以下の紫外 線を照射する。これにより、酸化分解速度が向上する。  [0280] The decomposition part in the storage of the present invention irradiates ultraviolet rays having a wavelength of 220 nm or more and 400 nm or less. Thereby, the oxidative decomposition rate is improved.
[0281] また本発明の収納庫は制御部をさらに有し、制御部はミスト噴霧装置が動作後に分 解部を動作させる。これにより、ミスト噴霧装置力も噴霧されたミストが剥離した農薬等 の有害物質や、未反応物のみにエネルギーが使用される。そのため分解効率が向 上する。特にミスト噴霧装置が酸ィ匕分解性ミストを発生する場合には、酸化分解性ミ ストにより酸ィ匕分解しきれな力つた未反応物を分解部が分解する。そのため収納庫と しての酸ィ匕分解効率が向上する。  [0281] The storage of the present invention further includes a control unit, and the control unit operates the disassembling unit after the mist spraying device operates. As a result, the energy is used only for harmful substances such as agricultural chemicals and other unreacted substances from which the sprayed mist has peeled off. Therefore, the decomposition efficiency is improved. In particular, when the mist spraying device generates an acid-decomposable mist, the decomposition part decomposes unreacted materials that cannot be completely decomposed by the oxidative-decomposable mist. As a result, the efficiency of acidification decomposition as a storage is improved.
[0282] また本発明の収納庫は、貯蔵室の開口を覆う扉と、その扉の開閉を検知する検知 部と、制御部とをさらに有する。制御部は、検知部が扉の開放を検知した時に分解部 の動作を停止する。これにより、扉を開けた時に、人が直接紫外線の照射を見ること が防止され、安全性が向上する。  [0282] The storage of the present invention further includes a door that covers the opening of the storage chamber, a detection unit that detects opening and closing of the door, and a control unit. The control unit stops the operation of the disassembly unit when the detection unit detects the opening of the door. This prevents people from seeing direct UV irradiation when the door is opened, improving safety.
[0283] また本発明の収納庫は、分解部を動作させるスィッチをさらに有して 、る。これによ り、人が動作させたことを認知したときのみ分解部を動作させることができるので、安 全性が向上する。  [0283] The storage of the present invention further includes a switch for operating the disassembly unit. As a result, the disassembly unit can be operated only when it is recognized that a person has operated, thus improving safety.
[0284] また本発明の収納庫には、分解部の周囲に遮光板が設けられている。これにより、 人が直接紫外線を目にすることなぐ貯蔵室内の農作物にのみ紫外線を照射する。 そのため、安全性が向上する。  [0284] Further, in the storage of the present invention, a light shielding plate is provided around the disassembling portion. This will only irradiate the crops in the storage room where people do not see them directly. Therefore, safety is improved.
[0285] (実施の形態 11)  [Embodiment 11]
図 39は本発明の実施の形態 11における冷蔵庫の側断面図である。図 40は図 39 に示す冷蔵庫における制御系のブロック図である。  FIG. 39 is a side sectional view of the refrigerator in the eleventh embodiment of the present invention. FIG. 40 is a block diagram of a control system in the refrigerator shown in FIG.
[0286] 図 39に示す冷蔵庫が実施の形態 3における図 5に示す冷蔵庫と異なる点は、野菜 室 114の上部天面にミスト噴霧装置 120とともに分解部 121が設けられている点と、 壁面が紫外線劣化に強 、材料力もなる点である。この紫外線劣化に強 、材料とは、 ステンレスや、紫外線劣化に強い榭脂材料等である。分解部 121はピーク波長 250 nm近辺の紫外線を照射する紫外線ランプである。また、図 40に示すようにミスト噴霧 装置 120と分解部 121との動作を制御する制御部 106が設けられて 、る。これ以外 の構成は図 5〜図 7に示す構成と同様であるので詳細な説明を省略する。 [0286] The refrigerator shown in Fig. 39 is different from the refrigerator shown in Fig. 5 in Embodiment 3 in that a decomposition unit 121 is provided together with a mist spraying device 120 on the upper top surface of the vegetable compartment 114, and the wall surface is It is resistant to UV degradation and has material strength. Resistant to UV degradation, the material is stainless steel or a resin material resistant to UV degradation. Resolution 121 has a peak wavelength of 250 It is an ultraviolet lamp that irradiates ultraviolet rays near nm. Further, as shown in FIG. 40, a control unit 106 for controlling the operation of the mist spraying device 120 and the decomposition unit 121 is provided. Since other configurations are the same as those shown in FIGS. 5 to 7, detailed description thereof is omitted.
[0287] 以上のように構成された冷蔵庫のミスト噴霧装置 120と分解部 121の動作、作用に ついて説明する。まず、貯水槽 122内に水が貯留される。この際の貯留水 124は除 霜水である。次に電源 128が貯水槽 122内の陰極 134に負の高電圧を印加すると、 噴霧先端部 132と陽極 135との間に存在する電界によって噴霧先端部 132から複数 の液糸が引き出される。さらには帯電した液滴に分散されてミストとなる。このミストは 送風部 129により野菜室 114内へ送られる。このように静電霧化の際、放電が行われ てミストに静電付加されているため、ミストは野菜室 114内でプラスに帯電する野菜や 果物の表面に電気的に付着する。そして野菜や果物の表面の微細な凹部にまで侵 入し、残留農薬やワックスなどの有害物質を微細ミストの内圧エネルギーによって、浮 き上がらせる。分解部 121から照射される紫外線は、その分解作用によって、有害物 質を分解除去する。また、ミストに静電付加することにより、ミスト中の水分子がラジカ ル化し、 OHラジカルが生成する。そのため、放電によって発生したオゾンの酸ィ匕カ に加え、 OHラジカルの酸ィ匕力が、農薬等有害物質の分解性能を高める。  [0287] The operation and action of the mist spraying device 120 and the disassembling unit 121 of the refrigerator configured as described above will be described. First, water is stored in the water tank 122. The stored water 124 at this time is defrost water. Next, when the power supply 128 applies a negative high voltage to the cathode 134 in the water tank 122, a plurality of liquid yarns are drawn from the spray tip 132 by the electric field that exists between the spray tip 132 and the anode 135. Furthermore, it is dispersed in charged droplets to become mist. This mist is sent into the vegetable compartment 114 by the blower 129. Thus, during electrostatic atomization, discharge is performed and electrostatically added to the mist, so that the mist is electrically attached to the surface of vegetables and fruits that are positively charged in the vegetable compartment 114. It penetrates into the fine recesses on the surface of vegetables and fruits, and toxic substances such as residual agricultural chemicals and wax are lifted by the internal pressure energy of the fine mist. The ultraviolet rays emitted from the decomposition unit 121 decompose and remove harmful substances by the decomposition action. In addition, by electrostatically adding to the mist, water molecules in the mist are radicalized to generate OH radicals. Therefore, in addition to the acidity of ozone generated by discharge, the acidity of OH radicals enhances the decomposition performance of harmful substances such as agricultural chemicals.
[0288] 図 41は図 39に示す冷蔵庫における農薬除去性能を従来の浸漬仕様、及び水洗 いと比較した図である。この実験にはマラチオンを約 3ppm付着させたミニトマト 10個 ずつを用い、各仕様で除去処理する。そして処理後の残留マラチオン濃度をガスク 口マトグラフィ (GC)にて測定することで、除去率を算出する。  [0288] Fig. 41 is a diagram comparing the pesticide removal performance in the refrigerator shown in Fig. 39 with conventional immersion specifications and water washing. In this experiment, 10 cherry tomatoes with about 3 ppm of malathion were used and removed according to each specification. The removal rate is calculated by measuring the residual malathion concentration after treatment by gas chromatography (GC).
[0289] 次に各除去処理仕様を説明する。処理 Aでは、上述のミニトマト 10個を笊に入れ約 10秒間流水で洗浄する。処理 Bでは、 lppmのオゾンを含む水にミニトマト 10個を 1 時間浸漬する。この処理は一般的な食物洗浄装置を用いた処理に相当する。処理 C では、ミニトマト 10個にミスト噴霧装置 120で 12時間ミスト噴霧処理する。処理 Eでは 、ミニトマト 10個を 12時間ミスト噴霧処理後に分解部 121によってピーク波長 250nm 、 1600 WZcm2の紫外線を 1時間照射する。なお、処理 C、処理 Eでの庫内ォゾ ンガス濃度は約 0. 03ppmである。 Next, each removal processing specification will be described. In treatment A, place the above 10 cherry tomatoes in a bowl and wash with running water for about 10 seconds. In treatment B, soak 10 cherry tomatoes in water containing lppm ozone for 1 hour. This process corresponds to a process using a general food washing apparatus. In the treatment C, 10 cherry tomatoes are subjected to a mist spray treatment for 12 hours using a mist spraying device 120. In the treatment E, 10 cherry tomatoes are subjected to a mist spray treatment for 12 hours, and then irradiated with ultraviolet light having a peak wavelength of 250 nm and 1600 WZcm 2 by the decomposition unit 121 for 1 hour. The ozone gas concentration in process C and process E is approximately 0.03 ppm.
[0290] 図 41に示すように、処理 Aでの除去率は 20%であり、通常家庭での水洗い程度で は残留農薬の 80%が除去されず、人体に摂取されることがわかる。また処理 Bでは、 残留農薬の 55%が除去されている。 [0290] As shown in Fig. 41, the removal rate in treatment A is 20%, which is roughly equivalent to that of water washing at home. It can be seen that 80% of residual pesticides are not removed and are consumed by the human body. Treatment B also removes 55% of the pesticide residue.
[0291] これに対し、処理 Cの除去率は 50%であり、処理 Bとほぼ同等の農薬除去性能が 示されている。一方、処理 Eの除去率は 70%である。これは、超微細ミストの物理的 作用によって、付着農薬が浮きあがり、紫外線により分解されたためと考えられる。以 上の結果から、本実施の形態におけるミスト噴霧装置 120と分解部 121とを有する冷 蔵庫は、食物洗浄の専用機以上の農薬除去性能を有する。  [0291] On the other hand, the removal rate of treatment C was 50%, indicating that the removal efficiency of pesticide was almost the same as treatment B. On the other hand, the removal rate of treatment E is 70%. This is thought to be because the attached pesticides were lifted by the physical action of the ultrafine mist and decomposed by ultraviolet rays. From the above results, the refrigerator having the mist spraying device 120 and the decomposition unit 121 in the present embodiment has a pesticide removal performance higher than that of a dedicated machine for food washing.
[0292] 図 42は図 39に示す冷蔵庫のミスト噴霧装置 120での農薬除去後に水洗いした水 中の残存マラチオン量と、従来の浸漬仕様での農薬洗浄後の水中の残存マラチォ ン量とを比較した図である。  [0292] Fig. 42 compares the amount of residual malathion in water washed with water after pesticide removal using the mist spraying device 120 of the refrigerator shown in Fig. 39 and the amount of malathion in water after washing with pesticide under conventional immersion specifications. FIG.
[0293] この実験でも、上述と同様にマラチオンを約 3ppm付着させたミニトマト 10個ずつを 前述の各処理仕様で除去処理する。そして最終処理時の 10秒間水道水を採取し、 その水道水中のマラチオン濃度を GCにて測定する。この結果と、図 41の結果とから 、各処理によって除去されたマラチオン量に対して、水道水中に含まれるマラチオン 量の比率を算出する。  [0293] In this experiment as well, 10 cherry tomatoes with about 3 ppm of malathion attached are removed according to the above-mentioned processing specifications. Then, tap water is collected for 10 seconds at the time of final treatment, and the concentration of malathion in the tap water is measured by GC. From this result and the result of FIG. 41, the ratio of the amount of malathion contained in tap water to the amount of malathion removed by each treatment is calculated.
[0294] 次に各除去処理仕様を説明する。処理 Aでは、上述のミニトマト 10個を笊に入れ約 10秒間流水で洗浄する。処理 B'では、 lppmのオゾンを含む水にミニトマト 10個を 1 時間浸漬する。その後、笊に入れ約 10秒間流水で洗浄する。この処理は一般的な 食物洗浄装置を用いた処理に相当する。処理 C'では、ミニトマト 10個にミスト噴霧装 置 120で 12時間ミスト噴霧処理する。その後、笊に入れ約 10秒間流水で洗浄する。 処理 E，では、ミニトマト 10個を 12時間ミスト噴霧処理後に分解部 121によってピーク 波長 250nm、 1600 WZcm2の紫外線を 1時間照射する。その後、笊に入れ約 10 秒間流水で洗浄する。なお、処理 C'、処理 E'での庫内オゾンガス濃度は約 0. 03p pmである。 Next, each removal processing specification will be described. In treatment A, place the above 10 cherry tomatoes in a bowl and wash with running water for about 10 seconds. In treatment B ', 10 cherry tomatoes are soaked in water containing lppm ozone for 1 hour. After that, wash it in running water for about 10 seconds with running water. This process corresponds to a process using a general food washing apparatus. In process C ', 10 cherry tomatoes are subjected to mist spraying for 12 hours using mist spraying device 120. After that, wash it in running water for about 10 seconds with running water. In treatment E, 10 cherry tomatoes are subjected to mist spraying for 12 hours and then irradiated with ultraviolet light having a peak wavelength of 250 nm and 1600 WZcm 2 for 1 hour by the decomposition unit 121. Then, wash in running water for about 10 seconds with running water. The ozone gas concentration in process C 'and process E' is about 0.03 ppm.
[0295] 図 42に示すように、処理 Aでの水道水中のマラチオン量は除去したマラチオン量 の 100%である。すなわち、水道水洗浄ではマラチオンは分解されない。また、処理 Bでの水道水中のマラチオン量は、除去されたマラチオン量の約 20%である。  [0295] As shown in Figure 42, the amount of malathion in tap water in treatment A is 100% of the amount of malathion removed. That is, malathion is not decomposed by tap water washing. The amount of malathion in tap water in treatment B is about 20% of the amount of malathion removed.
[0296] 一方、処理 C'での水道水中のマラチオン量も除去されたマラチオン量の 20%であ る。このようにマラチオン分解能力に関してもミスト噴霧装置 120と専用器は同等の分 解性能である。そして、処理 E'では、除去率が 70%であるにも関わらず、水道水中 のマラチオン量は検出限界以下である。これは紫外線により除去されたマラチオンが ほぼ 100%分解されるためと考えられる。このように、ミスト噴霧装置 120と分解部 12 1とを有する冷蔵庫は、野菜等の農薬を除去できる上に、除去した農薬を分解する能 力を有する。 [0296] On the other hand, the amount of malathion in tap water in treatment C 'was 20% of the amount of malathion removed. The Thus, with regard to malathion decomposition capability, the mist spraying device 120 and the dedicated device have equivalent decomposition performance. And in treatment E ', the amount of malathion in tap water is below the detection limit even though the removal rate is 70%. This is thought to be due to the fact that malathion removed by ultraviolet rays is almost 100% decomposed. Thus, the refrigerator having the mist spraying device 120 and the decomposition unit 121 can remove agricultural chemicals such as vegetables and has the ability to decompose the removed agricultural chemicals.
[0297] 以上のように、図 39に示す冷蔵庫は、ミスト噴霧装置 120と、分解部 121とを有する 。ミスト噴霧装置 120は貯水槽 122と、貯留水 124を噴霧する噴霧部 123とを有する 。本実施の形態による冷蔵庫はこのような簡便な構造で農薬等の有害物質を除去、 分解する機能を有する。そのため消費者は冷蔵庫に野菜や果物を保存するだけで、 簡単に農薬等の有害物質を除去することができる。  [0297] As described above, the refrigerator shown in FIG. 39 includes the mist spraying device 120 and the disassembling unit 121. The mist spraying device 120 has a water storage tank 122 and a spraying section 123 that sprays the stored water 124. The refrigerator according to this embodiment has such a simple structure and functions to remove and decompose harmful substances such as agricultural chemicals. Therefore, consumers can easily remove harmful substances such as agricultural chemicals by simply storing vegetables and fruits in the refrigerator.
[0298] また、本実施の形態による冷蔵庫では、超微細なミストが野菜室 114内に噴霧され る。これにより、噴霧されたミストが野菜や果物表面の微細な凹部に入り込み、凹部に 残留している農薬等の有害物質を物理的作用により除去する。そしてこの有害物質 が紫外線により分解される。すなわち少量の水で農薬等有害物質を除去、分解する ことができる。  [0298] Furthermore, in the refrigerator according to the present embodiment, ultrafine mist is sprayed into vegetable compartment 114. As a result, the sprayed mist enters the fine recesses on the surface of vegetables and fruits, and removes harmful substances such as agricultural chemicals remaining in the recesses by physical action. This harmful substance is decomposed by ultraviolet rays. That is, harmful substances such as agricultural chemicals can be removed and decomposed with a small amount of water.
[0299] また、本実施の形態による冷蔵庫では、静電霧化方式の噴霧部 123を用いている 力 これに限定されない。噴霧部に超音波素子を用いた場合には、静電霧化方式と 比較して大量の噴霧量を発生させることができる。そのため、噴霧量の増量が必要な 場合には特に効果的である。また、他の噴霧方式を用いても、上記のような超微細な ミストを発生させことが可能であれば、それぞれの装置の特性に応じて農薬等の有害 物質を除去、分解できる。  [0299] Further, in the refrigerator according to the present embodiment, the force using the spray unit 123 of the electrostatic atomization method is not limited to this. When an ultrasonic element is used for the spraying part, a large amount of spraying can be generated as compared with the electrostatic atomization method. Therefore, it is particularly effective when the spray amount needs to be increased. In addition, even if other spraying methods are used, harmful substances such as agricultural chemicals can be removed and decomposed according to the characteristics of each device, as long as it is possible to generate ultrafine mist as described above.
[0300] なお、本実施の形態による冷蔵庫では、貯水槽 122に除霜水を貯留し、使用者が 外部から貯留水を供給することなく貯留水 124が確保される。この構成では外部から の水分の補給の手間が力からず使い勝手をより向上させた冷蔵庫が得られる。これ 以外に、貯水タンク等を用いて外部から水を供給してもよい。このような構成では貯 水タンクのメンテナンスが容易である上、ミストを大量噴霧することができる。  [0300] In the refrigerator according to the present embodiment, defrosted water is stored in water storage tank 122, and reserved water 124 is secured without the user supplying the stored water from the outside. With this configuration, a refrigerator with improved usability can be obtained because the effort of replenishing moisture from the outside is not strong. In addition, water may be supplied from the outside using a water storage tank or the like. With such a configuration, maintenance of the water storage tank is easy and a large amount of mist can be sprayed.
[0301] また、貯留水 124を保持する保持部には、貯水槽 122を用いることに限定されない 。保水装置としての吸湿剤 (例えば、シリカゲル、ゼォライト、活性炭等の多孔質材料 等)を用いて、野菜室 114内の空気内に含まれている水分を抽出して保持させてもよ い。 [0301] Further, the holding unit for holding the stored water 124 is not limited to using the water storage tank 122. . The moisture contained in the air in the vegetable compartment 114 may be extracted and retained using a moisture absorbent (eg, a porous material such as silica gel, zeolite, activated carbon, etc.) as a water retention device.
[0302] さらに、貯蔵室内の一部分に強制的に温度差をつけることで貯蔵室内の空気に含 まれて!/ヽる水分を結露させるような結露発生部を設けると、任意のタイミングで必要な 量の貯留水を提供することができ、さらに噴霧量においても結露部を制御することに より必要な噴霧量を確保することができるので、外部力 の水分の補給の手間がかか らず使い勝手をより向上させる上に、さらに必要な時に必要な量の貯留水を供給す ることができる。以下、超音波素子と貯水タンクとを有する冷蔵庫の例について説明 する。  [0302] Furthermore, if a dew generation part that condenses moisture contained in the air in the storage room by forcing a temperature difference in a part of the storage room is provided, it is necessary at any timing. The amount of stored water can be provided, and also the amount of spray required can be secured by controlling the dew condensation part, so it is easy to use without the need to replenish water with external force. It is possible to supply the necessary amount of stored water when necessary. Hereinafter, an example of a refrigerator having an ultrasonic element and a water storage tank will be described.
[0303] 図 43は本実施の形態における他の冷蔵庫の側断面図である。図 44は図 43に示 す冷蔵庫における制御系のブロック図である。図 43に示す冷蔵庫は超音波素子 80 を含む噴霧部 74と、噴霧部 74に給水経路 73を介して給水する貯水タンク 72と、分 解部 200とを有する。噴霧部 74の構成は実施の形態 1における図 2、図 3と同様であ る。噴霧部 74と給水経路 73と貯水タンク 72とはミスト噴霧装置 61を構成している。ま た、図 44に示すようにミスト噴霧装置 61と分解部 200との動作を制御する制御部 10 7が設けられている。それ以外の構成は図 39の構成と同様であるので詳細な説明を 省く。以下の説明では図 2、図 3も参照しながら説明する。  [0303] FIG. 43 is a side sectional view of another refrigerator according to the present embodiment. FIG. 44 is a block diagram of a control system in the refrigerator shown in FIG. The refrigerator shown in FIG. 43 includes a spray unit 74 including an ultrasonic element 80, a water storage tank 72 that supplies water to the spray unit 74 via a water supply path 73, and a disassembly unit 200. The configuration of the spray section 74 is the same as that in FIGS. 2 and 3 in the first embodiment. The spray unit 74, the water supply path 73, and the water storage tank 72 constitute a mist spraying device 61. Also, as shown in FIG. 44, a control unit 107 that controls the operation of the mist spraying device 61 and the decomposition unit 200 is provided. The rest of the configuration is the same as the configuration in FIG. The following description will be given with reference to FIGS.
[0304] 噴霧部 74と分解部 200とは、野菜室 114の上部天面には設けられている。分解部  [0304] The spray section 74 and the decomposition section 200 are provided on the top top of the vegetable compartment 114. Disassembly part
200はピーク波長 380nm近辺の紫外線を照射する紫外線 LEDである。  Reference numeral 200 denotes an ultraviolet LED that emits ultraviolet light having a peak wavelength of around 380 nm.
[0305] 以上のように構成された冷蔵庫のミスト噴霧装置 61と分解部 200との動作、作用に ついて説明する。まず、貯水タンク 72内に貯留された水が給水経路 73を経由して、 貯水槽 75内に供給される。  [0305] The operation and action of the mist spraying device 61 and the disassembling unit 200 of the refrigerator configured as described above will be described. First, the water stored in the water storage tank 72 is supplied into the water storage tank 75 via the water supply path 73.
[0306] 次に噴霧部 74の運転が開始される。貯留水 84は噴霧部 74である超音波素子 80 によって霧化される。その際、超音波素子 80によって生じた微小気泡の高速膨張と 圧縮破壊現象とが水分子を分解し、 OHラジカルを含んだ酸ィ匕分解性ミストが作られ る。酸ィ匕分解性ミストのうち、所定粒子径以下の微細ミストのみが金属メッシュ 81と金 属板 82との間の電場によって金属メッシュ 81から噴霧される。このようにして噴霧部 7 4内には、所定粒子径以下のミストが充満した状態となる。この微細ミストは送風部 77 によって野菜室 114内に噴霧される。噴霧された微細ミストは野菜室 114内の野菜や 果物の表面に付着し、野菜等の表面に付着した農薬等の有害物質を酸化分解する 。このように制御部 107は、ミスト噴霧部 61の超音波素子 80と電源 83とに通電した後 、分解部 200に通電して紫外線を照射させる。これにより、酸ィ匕分解性ミストによって 酸化分解された分解生成物は、断熱壁 116を劣化させることなぐ完全に無害化され る。 Next, the operation of the spray unit 74 is started. The stored water 84 is atomized by the ultrasonic element 80 which is the spray unit 74. At that time, the high-speed expansion of the microbubbles generated by the ultrasonic element 80 and the compression destruction phenomenon decompose water molecules, and an acid-decomposable mist containing OH radicals is formed. Of the acid-decomposable mist, only a fine mist having a particle size equal to or smaller than a predetermined particle diameter is sprayed from the metal mesh 81 by an electric field between the metal mesh 81 and the metal plate 82. In this way, the spray section 7 4 is filled with mist having a predetermined particle diameter or less. The fine mist is sprayed into the vegetable compartment 114 by the blower 77. The sprayed fine mist adheres to the surface of vegetables and fruits in the vegetable compartment 114 and oxidizes and decomposes harmful substances such as agricultural chemicals attached to the surface of vegetables. As described above, the control unit 107 energizes the ultrasonic element 80 and the power supply 83 of the mist spraying unit 61 and then energizes the decomposition unit 200 to irradiate ultraviolet rays. As a result, the decomposition product oxidatively decomposed by the acid-decomposable mist is completely rendered harmless without deteriorating the heat insulating wall 116.
[0307] 図 45は図 43に示す冷蔵庫における農薬除去性能と処理時間の関係を示す図で ある。この実験にはマラチオンを約 3ppm付着させたミニトマト 10個ずつを用い、ミスト 噴霧装置 61にて 12時間処理した後、分解部 200により照射時間を変えて紫外線を 照射処理する。その後、 GCにてマラチオン濃度を測定し、マラチオンの除去率を算 出する。  FIG. 45 is a diagram showing the relationship between the pesticide removal performance and the treatment time in the refrigerator shown in FIG. In this experiment, 10 cherry tomatoes with about 3 ppm of malathion were used, treated with mist spraying device 61 for 12 hours, and then irradiated with ultraviolet rays by changing the irradiation time with decomposition unit 200. After that, measure the concentration of malathion by GC and calculate the removal rate of malathion.
[0308] 図 45から明らかなように、図 39の構成における紫外線ランプ力もなる分解部 121の 1時間処理と同等の性能を発揮するためには、 12時間必要であることがわかる。  As is clear from FIG. 45, it can be seen that 12 hours are required in order to exhibit the same performance as the 1-hour processing of the disassembly unit 121 that also has the ultraviolet lamp power in the configuration of FIG.
[0309] 以上のように、図 43に示す冷蔵庫はミスト噴霧装置 61と分解部 200とを有する。ミ スト噴霧装置 61は貯水タンク 72と、貯留水 84を噴霧する噴霧部 74とを有する。分解 部 200は紫外線 LEDで構成されている。分解部 200により農作物に紫外線を長時 間照射すれば、紫外線ランプと同等の酸化分解性が得られる。また、紫外線による断 熱壁 116の劣化も生じない。そのため、断熱壁 116の材料費が低減され、断熱壁 11 6が長寿命になる。また、分解部 200の照射波長を 350nm近辺にすることにより、紫 外線による人体への影響を問題とならない範囲とすることができる。  As described above, the refrigerator shown in FIG. 43 includes the mist spraying device 61 and the disassembling unit 200. The mist spraying device 61 includes a water storage tank 72 and a spraying unit 74 that sprays the stored water 84. The disassembly unit 200 is composed of an ultraviolet LED. If the decomposition unit 200 irradiates the crops with ultraviolet rays for a long time, oxidative degradation equivalent to that of an ultraviolet lamp can be obtained. Further, the heat insulation wall 116 is not deteriorated by ultraviolet rays. Therefore, the material cost of the heat insulating wall 116 is reduced, and the heat insulating wall 116 has a long life. In addition, by setting the irradiation wavelength of the decomposition unit 200 in the vicinity of 350 nm, the influence of the ultraviolet rays on the human body can be made within a range where there is no problem.
[0310] 次に、分解部を設けた冷蔵庫のさらに好ましい構成について述べる。図 46は本発 明の実施の形態 11におけるさらに他の冷蔵庫の側断面図である。図 47は図 46に示 す冷蔵庫における制御系のブロック図である。  [0310] Next, a more preferable configuration of the refrigerator provided with the disassembly unit will be described. FIG. 46 is a side sectional view of still another refrigerator according to Embodiment 11 of the present invention. FIG. 47 is a block diagram of a control system in the refrigerator shown in FIG.
[0311] 図 46に示す冷蔵庫が図 39に示す冷蔵庫と異なる点は、ドア開閉検知部（以下、検 知部） 330が野菜室 114の開口を覆う扉 400Aに設けられ、スィッチ 403が冷蔵室 11 2の開口を覆う扉 400Bに設けられている点である。さらに、野菜室 114の上部天面 に分解部 121を囲うようにステンレスで作られた遮光板 402が設けられている点も異 なる。また図 47に示すように、検知部 330やスィッチ 403からの入力により分解部 12 1とミスト噴霧装置 120との動作を制御する制御部 108が設けられている。検知部 33 0は扉 400 Aの開閉を検知する。検知部 330は例えばマイクロスィッチゃ感圧センサ からなる。それ以外は図 39に示す構成と同様である。 [0311] The refrigerator shown in FIG. 46 differs from the refrigerator shown in FIG. 39 in that a door open / close detection unit (hereinafter referred to as a detection unit) 330 is provided on the door 400A covering the opening of the vegetable compartment 114, and a switch 403 is provided in the refrigerator compartment. It is a point provided on the door 400B that covers the opening of 11 2. Another difference is that a light shielding plate 402 made of stainless steel is provided on the top top of the vegetable compartment 114 so as to surround the disassembly unit 121. Become. Further, as shown in FIG. 47, a control unit 108 is provided for controlling the operation of the disassembling unit 121 and the mist spraying device 120 by input from the detecting unit 330 and the switch 403. The detector 330 detects the opening and closing of the door 400A. The detection unit 330 is composed of, for example, a micro switch pressure sensor. Otherwise, the configuration is the same as that shown in FIG.
[0312] 以上のように構成された冷蔵庫のミスト噴霧装置 120、分解部 121、制御部 108の 動作、作用について説明する。まず、貯水槽 122内に水が貯留される。以下、ミスト 噴霧装置 120の発生するミストによって野菜室 114内の農作物表面力 残留農薬や ワックスなどの有害物質を浮き上がらせる作用は図 39の構成についての説明と同様 である。 [0312] The operation and action of the mist spraying device 120, the disassembling unit 121, and the control unit 108 of the refrigerator configured as described above will be described. First, water is stored in the water tank 122. In the following, the action of causing the mist generated by the mist spraying device 120 to raise the crop surface strength residual agricultural chemicals and wax and other harmful substances in the vegetable compartment 114 is the same as the description of the configuration in FIG.
[0313] 次に使用者がスィッチ 403を ONすることにより、制御部 108がこれを受け、分解部 121に通電される。このようにスィッチ 403を設けることにより、使用者が分解部 121を 動作させたことを認知したときのみ動作させることができる。そのため安全性が向上す る。さらに、人が必要とした時のみ動作させることができるため、連続運転で使用する 時よりも使用エネルギーの削減を図ることができるので、電気代の節約につながる。 なお、スィッチ 403を ONすることによってミスト噴霧装置 120の運転開始力もの一連 の動作を開始するようにしてもよい。  [0313] Next, when the user turns on the switch 403, the control unit 108 receives this, and the disassembly unit 121 is energized. By providing the switch 403 in this way, it can be operated only when the user recognizes that the disassembly unit 121 has been operated. Therefore, safety is improved. Furthermore, since it can be operated only when needed by a person, it can reduce energy consumption compared to using it in continuous operation, leading to savings in electricity costs. It should be noted that a series of operations with the operation starting force of the mist spraying device 120 may be started by turning on the switch 403.
[0314] 以下、分解部 121の作用により、浮き上がった農薬等有害物質が分解される。 [0314] Hereinafter, due to the action of the decomposition unit 121, the floating harmful substances such as agricultural chemicals are decomposed.
[0315] また制御部 108は、扉 400Aの閉状態を検知部 330により検知した時のみ、分解部 121に通電する。このように使用者が紫外線に触れることが防止され、安全性が向上 する。さらに、分解部 121の周囲に遮光板 402を設けることにより、分解部 121からの 紫外線の光が扉 400A側に照射されるのを防ぐ。そのため、使用者が扉 400Aを開 けた際、直接紫外線を目にすることなぐ野菜室 114内の貯蔵物にのみ紫外線が照 射される。このように、安全性が向上する。さら〖こ、遮光板 402は、野菜室 114内の農 作物に照射する紫外線のエネルギーを分散させないので、有害物質の分解効率が 向上する。 [0315] The control unit 108 supplies power to the disassembling unit 121 only when the detection unit 330 detects the closed state of the door 400A. In this way, the user is prevented from touching the ultraviolet rays, and safety is improved. Furthermore, by providing a light shielding plate 402 around the disassembly unit 121, it is possible to prevent the ultraviolet light from the disassembly unit 121 from being irradiated on the door 400A side. Therefore, when the user opens the door 400A, the ultraviolet rays are irradiated only to the stored items in the vegetable compartment 114 where the ultraviolet rays are not directly seen. Thus, safety is improved. Furthermore, the light-shielding plate 402 does not disperse the energy of ultraviolet rays irradiated to the crops in the vegetable compartment 114, so that the decomposition efficiency of harmful substances is improved.
[0316] なお、上記説明では、分解部 121を動作させるスィッチ 403を ONZOFFの切り替 えのみとしている。これ以外に、 ONZOFFの切り替え機能に加え、紫外線の光量を 使用者が選択できるようなスィッチであることが好ましい。この場合、使用者が必要な 時に必要な紫外線の光量を選択できるので、使用エネルギーが削減される。 [0316] Note that in the above description, the switch 403 that operates the disassembling unit 121 is only switched to ONZOFF. In addition to this, in addition to the ONZOFF switching function, a switch that allows the user to select the amount of ultraviolet light is preferable. In this case, a user is required Since the amount of UV light required at times can be selected, the energy used is reduced.
[0317] また、遮光板 402はステンレス以外に、紫外線による劣化の少ない金属、ガラスでも よい。また断熱壁 116はステンレスで構成する以外に、紫外線による劣化の少ない金 属、ガラスでもよい。  [0317] Further, the light shielding plate 402 may be made of metal or glass that is less deteriorated by ultraviolet rays in addition to stainless steel. Further, the heat insulating wall 116 may be made of metal or glass that is less deteriorated by ultraviolet rays, in addition to being made of stainless steel.
[0318] 本実施の形態において、分解部 121、 200は野菜室 114の天面に配置されている 。これ以外に、野菜室 114内の容器 228を透明にすれば、野菜室 114内であればど こへ配置しても同様の効果が得られる。  [0318] In the present embodiment, the disassembling parts 121 and 200 are arranged on the top surface of the vegetable compartment 114. In addition, if the container 228 in the vegetable compartment 114 is made transparent, the same effect can be obtained regardless of where it is placed in the vegetable compartment 114.
[0319] 本実施の形態では野菜室 114が、冷凍室 115の上段に配置されている。これ以外 に、野菜室 114を最下段に配置すれば、野菜室 114を使用する際に、紫外線が直 接使用者の目に入ることなぐより安全に野菜室 114を使用することができる。  [0319] In the present embodiment, the vegetable compartment 114 is arranged in the upper stage of the freezer compartment 115. In addition, if the vegetable compartment 114 is arranged at the lowest level, when using the vegetable compartment 114, the vegetable compartment 114 can be used more safely than ultraviolet rays directly enter the user's eyes.
[0320] また、分解部 121、 200は、ミスト噴霧装置 120、 61の動作後に通電される。制御部 106, 107, 108はいずれもそのように制御する。そのためミスト噴霧装置 120、 61か ら噴霧されたミストにより剥離された農薬等の有害物質や未反応物の分解にのみェ ネルギーを使用することができ、分解効率が向上する。  [0320] The disassembling units 121 and 200 are energized after the operation of the mist spraying devices 120 and 61. The control units 106, 107, and 108 all control as such. For this reason, energy can be used only for the decomposition of harmful substances such as agricultural chemicals and unreacted substances separated by the mist sprayed from the mist spraying devices 120 and 61, and the decomposition efficiency is improved.
[0321] また分解部 121、 200が発する紫外線は、 220nm以上 400nm以下の波長である ことが好ましい。これにより、農薬等の有害物質の酸化分解速度が向上する。  [0321] The ultraviolet rays emitted from the decomposition sections 121 and 200 preferably have a wavelength of 220 nm or more and 400 nm or less. Thereby, the oxidative degradation rate of harmful substances such as agricultural chemicals is improved.
[0322] 以上、本発明による種々の実施の形態について説明したが、各実施の形態固有の 構造、特徴は可能な範囲で他の実施の形態に適用することも可能である。特に、実 施の形態 1、実施の形態 2におけるコンテナに実施の形態 3以下における冷蔵庫の 特徴を適用してもよい。また本発明はこれらの実施の形態に限定されるものではない 産業上の利用可能性  [0322] While various embodiments according to the present invention have been described above, structures and features unique to each embodiment can be applied to other embodiments as far as possible. In particular, the characteristics of the refrigerator in the third and subsequent embodiments may be applied to the container in the first and second embodiments. Further, the present invention is not limited to these embodiments. Industrial applicability
[0323] 本発明による収納庫は、流通における様々な状況下で農作物の安全性を高めるこ とができる。またこの収納庫を適用した冷蔵庫は簡便な構造で使い勝手を損なわず に家庭や商業施設などで農作物の安全性を高めることができる。 [0323] The storage according to the present invention can increase the safety of agricultural products under various circumstances in distribution. In addition, the refrigerator to which this storage is applied has a simple structure and can improve the safety of crops at home and commercial facilities without impairing usability.

Claims

請求の範囲  The scope of the claims
[1] 内部に農作物用の貯蔵室を有する箱体と、  [1] a box having a storage room for crops inside;
前記貯蔵室内に液体を噴霧してミストを発生させるミスト噴霧装置と、を備え、 前記ミスト噴霧装置は次のいずれかを行う、  A mist spraying device that sprays liquid in the storage chamber to generate mist, and the mist spraying device performs any of the following:
収納庫。  Storage.
A)前記ミストによって、前記貯蔵室に収納された前記農作物の表面に付着した有害 物質を浮き上がらせる、  A) The mist causes harmful substances attached to the surface of the crops stored in the storage room to rise.
B)前記ミストを前記貯蔵室に収納された前記農作物の表面に付着した前記有害物 質に付着させる。  B) The mist is attached to the harmful substance attached to the surface of the crop stored in the storage room.
[2] 前記箱体内に設けられ、前記液体を保持する保持部をさらに備えた、請求項 1記載 の収納庫。  [2] The storage case according to claim 1, further comprising a holding portion that is provided in the box and holds the liquid.
[3] 前記保持部は外部から供給された貯留水を保持する、  [3] The holding unit holds stored water supplied from the outside.
請求項 2記載の収納庫。  The storage according to claim 2.
[4] 前記保持部は前記貯蔵室内の空気内に含まれている水分力 抽出された貯留水を 保持する、 [4] The holding unit holds the water extracted from the water force contained in the air in the storage chamber.
請求項 2記載の収納庫。  The storage according to claim 2.
[5] 前記ミスト噴霧装置はミストを放出する噴霧先端部を有し、 [5] The mist spraying device has a spray tip for discharging mist,
前記箱体の、前記噴霧先端部とは別の区画内に設けられ、水を保持して前記ミスト 噴霧装置に水蒸気を供給する供給部をさらに備えた、  The box body is provided in a section different from the spray tip, and further includes a supply unit that holds water and supplies water vapor to the mist spray device.
請求項 4記載の収納庫。  The storage case according to claim 4.
[6] 前記ミスト噴霧装置はミストを放出する噴霧先端部を有し、少なくとも前記噴霧先端部 は前記貯蔵室内に設けられている、 [6] The mist spraying device has a spray tip for discharging mist, and at least the spray tip is provided in the storage chamber.
請求項 1記載の収納庫。  The storage of claim 1.
[7] 前記箱体の、前記噴霧先端部とは別の区画内に設けられ、前記液体を保持して前 記ミスト噴霧装置に前記液体を供給する供給部をさらに備えた、 [7] The container further includes a supply unit that is provided in a section different from the spray tip, and that holds the liquid and supplies the liquid to the mist spraying device.
請求項 6記載の収納庫。  The storage of claim 6.
[8] 前記ミスト噴霧装置は粒子径 0. 003 μ m以上 20 μ m以下のミストを発生する、 請求項 1記載の収納庫。 前記ミスト噴霧装置のミスト噴霧量は 0. 0007gZh'L以上 0. 14gZh'L以下である 請求項 1、 8のいずれかに記載の収納庫。 [8] The storage of claim 1, wherein the mist spraying device generates mist having a particle size of 0.003 μm to 20 μm. The storage case according to any one of claims 1 and 8, wherein a mist spray amount of the mist spraying device is not less than 0.0007 gZh'L and not more than 0.14 gZh'L.
前記有害物質を分解する分解部をさらに備えた、 Further comprising a decomposition part for decomposing the harmful substances,
請求項 1記載の収納庫。 The storage of claim 1.
前記分解部は紫外線を前記有害物質に照射する、 The decomposition unit irradiates the harmful substance with ultraviolet rays;
請求項 10記載の収納庫。 The storage case according to claim 10.
前記紫外線の波長は 220nm以上 400nm以下である、 The wavelength of the ultraviolet light is 220 nm or more and 400 nm or less,
請求項 11記載の収納庫。 The storage case according to claim 11.
前記分解部の周囲に設けられた遮光板をさらに備えた、 A light-shielding plate provided around the disassembly unit;
請求項 11記載の収納庫。 The storage case according to claim 11.
前記ミスト噴霧装置の作動後に前記発生部を作動させる制御部をさらに備えた、 請求項 10記載の収納庫。 11. The storage case according to claim 10, further comprising a control unit that operates the generating unit after the operation of the mist spraying device.
前記貯蔵室の開口部を覆う扉と、 A door covering the opening of the storage room;
前記扉の開閉を検知する検知部と、 A detector for detecting opening and closing of the door;
前記検知部が前記扉の開放を検知したときに前記分解部の動作を停止する制御部 と、をさらに備えた、 A control unit that stops the operation of the disassembly unit when the detection unit detects the opening of the door; and
請求項 10記載の収納庫。 The storage case according to claim 10.
前記ミスト噴霧装置を作動させるスィッチをさらに備えた、 A switch for operating the mist spraying device;
請求項 10記載の収納庫。 The storage case according to claim 10.
前記ミスト噴霧装置は酸化分解性ミストを発生する、 The mist spraying device generates an oxidatively decomposable mist;
請求項 1記載の収納庫。 The storage of claim 1.
前記酸化分解性ミストによって前記有害物質を分解することで生成する分解生成物 と、未分解の前記有害物質との少なくともいずれかを分解する分解部をさらに備えた 請求項 17記載の収納庫。 18. The storage according to claim 17, further comprising a decomposition unit that decomposes at least one of a decomposition product generated by decomposing the harmful substance with the oxidatively decomposable mist and the undecomposed harmful substance.
前記分解部は紫外線を前記分解生成物と前記有害物質との少なくともいずれかに 照射する、 請求項 18記載の収納庫。 The decomposition unit irradiates at least one of the decomposition product and the harmful substance with ultraviolet rays; 19. A storage as defined in claim 18.
[20] 前記紫外線の波長は 220nm以上 400nm以下である、 [20] The wavelength of the ultraviolet light is from 220 nm to 400 nm,
請求項 19記載の収納庫。  20. A storage as claimed in claim 19.
[21] 前記分解部の周囲に設けられた遮光板をさらに備えた、 [21] Further comprising a light shielding plate provided around the disassembling unit,
請求項 19記載の収納庫。  20. A storage as claimed in claim 19.
[22] 前記ミスト噴霧装置の作動後に前記発生部を作動させる制御部をさらに備えた、 請求項 18記載の収納庫。 22. The storage device according to claim 18, further comprising a control unit that operates the generating unit after the operation of the mist spraying device.
[23] 前記貯蔵室の開口部を覆う扉と、 [23] a door covering the opening of the storage chamber;
前記扉の開閉を検知する検知部と、  A detector for detecting opening and closing of the door;
前記検知部が前記扉の開放を検知したときに前記分解部の動作を停止する制御部 と、をさらに備えた、  A control unit that stops the operation of the disassembly unit when the detection unit detects the opening of the door; and
請求項 18記載の収納庫。  19. A storage as defined in claim 18.
[24] 前記ミスト噴霧装置を作動させるスィッチをさらに備えた、 [24] The apparatus further comprises a switch for operating the mist spraying device,
請求項 18記載の収納庫。  19. A storage as defined in claim 18.
[25] 前記ミスト噴霧装置はオゾンミストを発生する、 [25] The mist spraying device generates ozone mist.
請求項 1記載の収納庫。  The storage of claim 1.
[26] 前記箱体内に設けられ、前記液体を保持する保持部と、 [26] A holding part that is provided in the box and holds the liquid;
空気中の酸素を分解してオゾンを生成するオゾン発生体と、  An ozone generator that decomposes oxygen in the air to generate ozone;
前記保持部に水を供給する供給部と、をさらに備え、  A supply unit for supplying water to the holding unit,
前記オゾン発生体の生成したオゾンと前記供給部の供給する水とを混合してオゾン 水を生成する、  Mixing ozone generated by the ozone generator and water supplied by the supply unit to generate ozone water;
請求項 25記載の収納庫。  26. A storage as claimed in claim 25.
[27] 前記箱体内に設けられ、前記液体を保持する保持部と、 [27] A holding part that is provided in the box and holds the liquid;
前記保持部の一画に設けられたオゾン発生体と、  An ozone generator provided in a section of the holding unit;
前記保持部に水を供給する供給部と、をさらに備え、  A supply unit for supplying water to the holding unit,
前記保持部内に貯留された水中の溶存酸素を分解してオゾンを発生させることでォ ゾン水を生成する、  Generating ozone water by decomposing dissolved oxygen in the water stored in the holding section to generate ozone;
請求項 25記載の収納庫。 [28] 前記ミスト噴霧装置はアルカリ分解性ミストを発生する、 26. A storage as claimed in claim 25. [28] The mist spraying device generates an alkali-decomposable mist.
請求項 1記載の収納庫。  The storage of claim 1.
[29] 前記ミスト噴霧装置は、ラジカルを含んだミストを発生する、 [29] The mist spraying device generates mist containing radicals.
請求項 1記載の収納庫。  The storage of claim 1.
[30] 前記ミスト噴霧装置は静電霧化方式によってミストを発生する噴霧部を有する、 請求項 1記載の収納庫。 30. The storage case according to claim 1, wherein the mist spraying device has a spraying section that generates mist by an electrostatic atomization method.
[31] 前記噴霧部は粒子径 0. 003 μ m以上 0. 5 μ m以下のミストを発生する、 [31] The spray portion generates mist having a particle size of 0.003 μm or more and 0.5 μm or less.
請求項 30に記載の収納庫。  A storage as defined in claim 30.
[32] 前記噴霧部のミスト噴霧量は 0. 0007gZh'L以上 0. 07gZh'L以下である、 請求項 30、 31のいずれかに記載の収納庫。 [32] The storage case according to any one of claims 30 and 31, wherein the amount of mist sprayed in the spray section is 0.0007 gZh'L or more and 0.07 gZh'L or less.
[33] 前記ミスト噴霧装置は、ェジェクタ方式の噴霧ノズルと、前記噴霧ノズルの先端近傍 に設けられた環状の電極とを有し、前記電極に電圧を印加することにより、前記噴霧 ノズルより噴霧された粒子が静電付加される、 [33] The mist spraying device has an ejector-type spray nozzle and an annular electrode provided in the vicinity of the tip of the spray nozzle, and is sprayed from the spray nozzle by applying a voltage to the electrode. Particles are electrostatically added,
請求項 30記載の収納庫。  32. A storage as defined in claim 30.
[34] 前記箱体内に設けられ、前記液体を保持する保持部をさらに備え、 [34] A holding unit that is provided in the box and holds the liquid,
前記ミスト噴霧装置は、  The mist spraying device
前記保持部内に一端が位置し、他端が前記貯蔵室内に開口する噴霧先端部 を形成する毛細管供給構造体と、  A capillary supply structure that forms a spray tip with one end located in the holding portion and the other end opened into the storage chamber;
前記噴霧先端部の近傍に設けられた第 1電極と、  A first electrode provided in the vicinity of the spray tip;
前記第 1電極と対向して設けられた第 2電極と、を有し、  A second electrode provided opposite to the first electrode,
前記第 1電極と前記第 2電極との間に電圧を印加することにより前記噴霧先端部力 噴霧された水が静電付加される、  The sprayed water is sprayed electrostatically by applying a voltage between the first electrode and the second electrode,
請求項 30記載の収納庫。  32. A storage as defined in claim 30.
[35] 前記ミスト噴霧装置は超音波霧化方式によってミストを発生する噴霧部を有する、 請求項 1記載の収納庫。 35. The storage case according to claim 1, wherein the mist spraying device has a spraying part that generates mist by an ultrasonic atomization method.
[36] 前記噴霧部は粒子径 0. 5 μ m以上 0. 20 μ m以下のミストを発生する、 [36] The spray part generates mist having a particle size of 0.5 μm or more and 0.20 μm or less.
請求項 35記載の収納庫。  36. Storage according to claim 35.
[37] 前記噴霧部のミスト噴霧量は 0. 014gZh'L以上 0. 14gZh'L以下である、 請求項 35、 36のいずれかに記載の収納庫。 [37] The amount of mist sprayed in the spray section is not less than 0.004 gZh'L and not more than 0.14 gZh'L. The storage case according to any one of claims 35 and 36.
[38] 前記箱体は輸送に使用される輸送コンテナである、 [38] The box is a transport container used for transport.
請求項 1から 37のいずれか一項に記載の収納庫。  A storage as claimed in any one of claims 1 to 37.
[39] 前記箱体は収穫後の前記農作物の保管に使用される保管コンテナである、 請求項 1から 37のいずれか一項に記載の収納庫。 [39] The storage case according to any one of claims 1 to 37, wherein the box is a storage container used for storing the crop after harvesting.
[40] 請求項 1から 37の!、ずれか一項に記載の収納庫と、 [40] Claims 1 to 37 !, storage according to claim 1;
前記断熱箱体の内部を冷却する冷却装置と、を備え、  A cooling device for cooling the inside of the heat insulation box,
前記箱体は断熱区画された貯蔵室を有する断熱箱体である、  The box body is a heat insulating box body having a storage compartment partitioned by heat insulation,
冷蔵庫。  refrigerator.
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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007054808A (en) * 2005-08-26 2007-03-08 Matsushita Electric Works Ltd Electrostatic atomization apparatus
JP2008089282A (en) * 2006-10-05 2008-04-17 Matsushita Electric Ind Co Ltd Refrigerator
WO2008072759A1 (en) * 2006-12-15 2008-06-19 Panasonic Electric Works Co., Ltd. Electrostatically atomizing unit for use in a temperature-regulating appliance
JP2008155121A (en) * 2006-12-22 2008-07-10 Matsushita Electric Works Ltd Electrostatic atomizer
WO2008139706A1 (en) 2007-04-26 2008-11-20 Panasonic Corporation Refrigerator
JP2008292134A (en) * 2007-04-26 2008-12-04 Panasonic Corp Refrigerator
JP2008292135A (en) * 2007-04-26 2008-12-04 Panasonic Corp Refrigerator
WO2009047896A1 (en) * 2007-10-09 2009-04-16 Panasonic Corporation Refrigerator
EP2065097A1 (en) * 2007-11-27 2009-06-03 Panasonic Electric Works Co., Ltd. Electrostatic atomizer and coolant-circulating equipment including the same
JP2009243782A (en) * 2008-03-31 2009-10-22 Panasonic Corp Refrigerator
JP2009285538A (en) * 2008-05-27 2009-12-10 Panasonic Electric Works Co Ltd Electrostatic atomizer
JP2010023038A (en) * 2009-10-30 2010-02-04 Tamura Seisakusho Co Ltd Atomizer
JP2010159901A (en) * 2009-01-07 2010-07-22 Panasonic Corp Refrigerator
JP2010172891A (en) * 2010-02-22 2010-08-12 Panasonic Electric Works Co Ltd Electrostatic atomizing device
WO2011001335A1 (en) * 2009-06-29 2011-01-06 Koninklijke Philips Electronics N.V. Device and method for cleaning food
WO2011024454A1 (en) * 2009-08-26 2011-03-03 パナソニック株式会社 Refrigerator
JP2011047549A (en) * 2009-08-26 2011-03-10 Panasonic Corp Refrigerator
JP2011092936A (en) * 2010-12-07 2011-05-12 Panasonic Electric Works Co Ltd Electrostatic atomizer
US7966842B2 (en) 2007-04-26 2011-06-28 Panasonic Corporation Refrigerator, and electric device
JP2020030038A (en) * 2019-10-30 2020-02-27 東芝ライフスタイル株式会社 Refrigerator and ultraviolet irradiation device
CN111802564A (en) * 2019-04-12 2020-10-23 合肥华凌股份有限公司 Device and method for treating pesticide residues, system, refrigerator and storage medium
JP6796700B1 (en) * 2019-12-11 2020-12-09 東京瓦斯株式会社 Light irradiation system
JP2023093814A (en) * 2021-12-23 2023-07-05 東芝ライフスタイル株式会社 Storage container for refrigerator, and refrigerator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012088032A (en) * 2010-09-21 2012-05-10 Panasonic Corp Method for controlling atomization device, and method for controlling discharge device, and refrigerator
KR102204911B1 (en) * 2020-07-15 2021-01-18 최병엽 Low temperature warehouse sterilizing water supply device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6124862Y2 (en) * 1981-07-04 1986-07-25
JPH0311636Y2 (en) * 1984-05-30 1991-03-20
JPH1165680A (en) * 1997-08-26 1999-03-09 Nikko Souhonshiya:Kk Temperature control method
JP2000220949A (en) * 1999-01-29 2000-08-08 Sharp Corp Refrigerator
JP2002253400A (en) * 2001-03-05 2002-09-10 Matsushita Refrig Co Ltd Storage to preserve freshness
JP2002286356A (en) * 2001-03-28 2002-10-03 Mitsubishi Electric Corp Negative ion and ozone generator
JP2003121058A (en) * 2001-10-05 2003-04-23 Sanyo Electric Co Ltd Refrigerator

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5876157A (en) * 1981-10-31 1983-05-09 Matsushita Electric Works Ltd Spray apparatus
JPH04371778A (en) * 1991-06-21 1992-12-24 Matsushita Refrig Co Ltd Refrigerator
JPH07135945A (en) * 1993-11-15 1995-05-30 Jiokuto:Kk Device for maintaining freshness of food
IL107768A0 (en) * 1993-11-26 1994-02-27 Shira Aeroponics 1984 Ltd Treatment of agricultural produce
JP3552357B2 (en) * 1995-09-08 2004-08-11 松下電器産業株式会社 Food cleaning equipment
JP2001050621A (en) * 1999-08-05 2001-02-23 Matsushita Refrig Co Ltd Automatic ice making machine
JP2001133096A (en) * 1999-11-05 2001-05-18 Fujitsu General Ltd Electric refrigerator
JP2002277151A (en) * 2001-03-15 2002-09-25 Matsushita Refrig Co Ltd Humidifier and refrigerator using it
JP2003090658A (en) * 2001-09-20 2003-03-28 Fujitsu General Ltd Water feeder of automatic ice making machine
JP2003090659A (en) * 2001-09-20 2003-03-28 Fujitsu General Ltd Water feeder for refrigerator
JP2003121050A (en) * 2001-10-05 2003-04-23 Sanyo Electric Co Ltd Refrigerator
JP2004125179A (en) * 2002-04-03 2004-04-22 Sanyo Electric Co Ltd Refrigerator and ultrasonic humidifier

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6124862Y2 (en) * 1981-07-04 1986-07-25
JPH0311636Y2 (en) * 1984-05-30 1991-03-20
JPH1165680A (en) * 1997-08-26 1999-03-09 Nikko Souhonshiya:Kk Temperature control method
JP2000220949A (en) * 1999-01-29 2000-08-08 Sharp Corp Refrigerator
JP2002253400A (en) * 2001-03-05 2002-09-10 Matsushita Refrig Co Ltd Storage to preserve freshness
JP2002286356A (en) * 2001-03-28 2002-10-03 Mitsubishi Electric Corp Negative ion and ozone generator
JP2003121058A (en) * 2001-10-05 2003-04-23 Sanyo Electric Co Ltd Refrigerator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007054808A (en) * 2005-08-26 2007-03-08 Matsushita Electric Works Ltd Electrostatic atomization apparatus
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US8209990B2 (en) 2006-12-15 2012-07-03 Panasonic Corporation Electrostatically atomizing unit for use in a temperature-regulating appliance
WO2008072759A1 (en) * 2006-12-15 2008-06-19 Panasonic Electric Works Co., Ltd. Electrostatically atomizing unit for use in a temperature-regulating appliance
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WO2008139706A1 (en) 2007-04-26 2008-11-20 Panasonic Corporation Refrigerator
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US7966842B2 (en) 2007-04-26 2011-06-28 Panasonic Corporation Refrigerator, and electric device
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WO2009047896A1 (en) * 2007-10-09 2009-04-16 Panasonic Corporation Refrigerator
US8033485B2 (en) 2007-11-27 2011-10-11 Panasonic Electric Works Co., Ltd. Electrostatic atomizer and coolant-circulating equipment including same
EP2065097A1 (en) * 2007-11-27 2009-06-03 Panasonic Electric Works Co., Ltd. Electrostatic atomizer and coolant-circulating equipment including the same
EP2390007A1 (en) * 2007-11-27 2011-11-30 Panasonic Electric Works Co., Ltd. Electrostatic atomizer
JP2009243782A (en) * 2008-03-31 2009-10-22 Panasonic Corp Refrigerator
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WO2011001335A1 (en) * 2009-06-29 2011-01-06 Koninklijke Philips Electronics N.V. Device and method for cleaning food
JP2011047549A (en) * 2009-08-26 2011-03-10 Panasonic Corp Refrigerator
CN102472551A (en) * 2009-08-26 2012-05-23 松下电器产业株式会社 Refrigerator
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US8800312B2 (en) 2009-08-26 2014-08-12 Panasonic Corporation Refrigerator
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JP2010023038A (en) * 2009-10-30 2010-02-04 Tamura Seisakusho Co Ltd Atomizer
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