CN104467781A - Light-control electric-leakage circuit breaker - Google Patents
Light-control electric-leakage circuit breaker Download PDFInfo
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- CN104467781A CN104467781A CN201510000162.XA CN201510000162A CN104467781A CN 104467781 A CN104467781 A CN 104467781A CN 201510000162 A CN201510000162 A CN 201510000162A CN 104467781 A CN104467781 A CN 104467781A
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Abstract
The invention discloses a light-control electric-leakage circuit breaker which achieves electric-leakage breaking through light-control triggering. The light-control electric-leakage circuit breaker is formed by an outer shell composed of an upper cover (1) and a base (2) and a light-control circuit. The light-control circuit comprises a sharing circuit (3), a light-control current type circuit (4) and a light-control resistor type circuit (5). The light-control current type circuit (4) and the light-control resistor type circuit (5) alternately work. When electric leakage occurs and the resistance to the ground is larger than a set value, the light-control current type circuit (4) does not work, the light-control resistor type circuit (5) starts to work, and power is cut off by an on-off switch K through the sharing circuit (3). Similarly, when the resistance to the ground is smaller than the set value, the light-control resistor type circuit (5) does not work, the light-control current type circuit (4) starts to work, and the power is cut off by the on-off switch K through the sharing circuit (3). The aims that influences of existence of a ground wire or influences of the resistance to the ground are avoided, and the power can be rapidly and effectively cut off when galvanic electricity occurs are achieved; in addition, the effect that the power is cut off in an electrification mode when a null line or the ground wire is missed before manufacturing is achieved, and the light-control electric-leakage circuit breaker is safe and reliable.
Description
Technical field
The invention belongs to residual current circuit breaker field, is utilize the light-operated light-operated residual current circuit breaker realizing leakage, breaking specifically.
Background technology
Not having light-operated residual current circuit breaker on the market at present, is all current mode residual current circuit breaker and leakage protecting plug.It is having the floor house of reliable ground wire or the place good with earth surface, and electric leakage or the person get an electric shock and can effectively cut off the electricity supply.But do not having ground wire or corroded because of ground wire, the situation such as to get loose causes ground wire to lack, and in the too high place of resistance to earth, electric leakage or the person get an electric shock and just can not effectively cut off the electricity supply.In addition, these residual current circuit breaker and leakage protecting plug adopt the mode open circuit of release.When before making because of burn into get loose, break to fall etc. reason cause zero line to lack time, tripping coil lacks zero line and release can not be made to thread off.At this moment, if electric heater zero line side exists touch shell hidden danger, live wire electric current arrives zero line side through heating wire and touches shell point, at this moment just likely accident of human electric shock occurs.Although have at present some leakage protecting plugs to be connected one end with three slotting L pins at leak(age) test switch on the market to increase and connect a wire; when three jacks inserting the access of L pin are zero line; this root wire is not charged; electric leakage or ground strip electric energy are effectively cut off the electricity supply; but when three slotting L pin access jacks are live wire; this root wire is just charged, just likely causes accident of human electric shock when electric heater does not have reliable ground.The report of 2, CCTV " disaster under life 315-shower nozzle " when 2005 on September 1, evening 8: 30.Before this report, certain TV station once reported electric heater electric leakage electric shock accident.The report in Xijiang River Urban Newspaper on December 25th, 2010 " newly-married man orders funeral electric heater ".These electric shock accidentss all with do not have reliable ground relevant, wherein also have because zero line and live wire in residential building toilet connect instead, distribution line earth resistance is too high relevant.These electric shock accidentss confirm current mode residual current circuit breaker noted earlier and the not perfect problem of leakage protecting plug from objective reality reflection.I have purchased more than 20 various different current mode residual current circuit breaker and leakage protecting plug is tested on the market, also demonstrate that current mode residual current circuit breaker noted earlier and leakage protecting plug is not perfect and problem safe not.
Summary of the invention
The object of the invention is to invent one and can overcome the deficiencies in the prior art, no matter resistance to earth size (zero to infinity) and have ground wire or the floor house without ground wire, causes the light-operated residual current circuit breaker that drain conditions that people gets an electric shock can timely and effectively be cut off the electricity supply.
Light-operated residual current circuit breaker of the present invention, comprises housing and light-operated circuit; It is characterized in that housing is made up of upper cover and base, at upper tops, current mode leak(age) test button, the test of zero line misconnection live wire button, resistor-type leak(age) test button, energizing key, light source hole are housed; At pan frontward end, input zero terminal and input fire line terminal are housed, are equipped with at base rear end and export zero terminal, export fire line terminal, ground wire binding post; Light-operated circuit comprises common circuit, light-operated current type circuit, light-operated resistor-type circuit; Described common circuit by power on/off K switch, rectification circuit, amplifying triode S1, relay J, resistance R1, R2, light-emitting diode f forms; Light-operated current type circuit is by zero sequence coil LX, and shunt current-limiting circuit, amplifying triode S2, light trigger G1, the sensitive switch n1 of current mode leak(age) test and resistance R4 forms; Light-operated resistor-type circuit shunts current-limiting circuit by front end, rear end shunting current-limiting circuit, light trigger G2, the sensitive switch n3 of zero line misconnection live wire test and LED light garden sequin L5, and the sensitive switch n2 of resistor-type leak(age) test and flow restricter RL forms; Described common circuit is connected with the photo resistance R20 one end in the photo resistance R3 one end in the light trigger G1 of light-operated current type circuit and light-operated resistor-type circuit light trigger G2 by resistance R2 one end and amplifying triode S1 base stage, the resistance R2 other end connects with the normally opened contact of relay J, and photo resistance R3 and the photo resistance R20 other end connect with the negative pole of rectification circuit; Power on/off K switch adopts magnetic-type, its moving contact connects with the common source lead-out wire of light-operated current type circuit and light-operated resistor-type circuit, on circuit boards, power on/off K switch and transformer Q and circuit board to be assembled in housing on base various light-operated circuit sets of elements dress respectively;
Input zero line and the input live wire of described common circuit connect with power on/off K switch fixed contact respectively, the input zero line other end is connected on the binding post of housing base, the other end of input live wire is connected on the binding post of housing base, the extraction zero line of power on/off K switch moving contact and draw live wire respectively by around zero sequence coil LX with export zero terminal and export fire line terminal and be connected; Power on/off K switch magnetic coil H lead-in wire connects with relay J normally-closed contact, and another root lead-in wire connects with rectification circuit anode, the energizing key of power on/off K switch be located at housing on cover; Amplifying triode S1 emitter connects with rectification circuit anode, collector electrode connects with relay J coil one end, base stage connects with resistance R2 one end, the resistance R2 other end connects with relay J normally opened contact, the relay J coil other end and moving contact connect with the negative pole of rectification circuit, resistance R1 and light-emitting diode f connects, the resistance R1 other end connects with rectification circuit anode, light-emitting diode f negative pole connects with the negative pole of rectification circuit, and the light source portion correspondence of light-emitting diode f is contained in upper cover light source hole is used as indicator light; Transformer Q input lead is respectively with the extraction zero line of power on/off K switch moving contact with draw live wire and connect, diode D1 positive pole and the D3 negative pole of transformer Q output lead one end and rectification circuit connect, the other end connects with diode D2 positive pole and D4 negative pole, the negative pole of diode D1, D2 of rectification circuit connects with filter capacitor C positive pole, and the positive pole of diode D3, D4 connects with filter capacitor C negative pole;
Resistance R5, R6, R7 series connection of the shunting current-limiting circuit of described light-operated current type circuit, resistance R5 one end and the zero sequence coil LX Z that goes between connects, and resistance R7 one end connects with the positive pole of amplifying triode S2 emitter and rectification circuit; Resistance R8, R9, R10 connect, resistance R8 one end connects with amplifying triode S2 base stage, resistance R10 one end connects with zero sequence coil LX lead-out wire P, amplifying triode S2 collector electrode connects with the LED light garden sequin L1 in light trigger G1, and the LED light garden sequin L1 other end connects with the rectification circuit negative pole of common circuit; Photo resistance R3 one end in light trigger G1 connects with the rectification circuit negative pole of common circuit, the other end connects with the photo resistance R20 one end in the light trigger G2 of light-operated resistor-type circuit, connect with the amplifying triode S1 base stage in common circuit and resistance R2 one end simultaneously, sequin L4 one end, LED light garden and resistance R5 one end and the zero sequence coil LX Z that goes between connects, the other end and resistance R10 one end and the zero sequence coil LX P that goes between connects, sequin L3 one end, LED light garden connects with resistance R5 and R6 one end, and the other end connects with resistance R9 and R10 one end; Sequin L2 one end, LED light garden connects with resistance R6 and R7 one end, and the other end connects with resistance R8 and R9 one end; The sensitive switch n1 correspondence of current mode leak(age) test is contained in the below of the button of current mode leak(age) test, one end connects with zero sequence coil LX lead-out wire P and resistance R10, the other end connects with resistance R4 one end, and the resistance R4 other end connects with the rectification circuit negative pole in common circuit;
Diode D8, D7, D6 in described light-operated resistor-type circuit front-end shunting current-limiting circuit, resistance R19, electroprobe neon bulb L7, diode D5, LED light garden sequin L8, diode D4, resistance R12 connects successively, resistance R12 one end connects with the extraction zero line of power on/off K switch moving contact, diode D8 positive pole with enter wall point, appliance shell, ground wire the money terminal that connects connect, the resistance R18 of rear end shunting current-limiting circuit, R17, R16, LED light garden sequin L11 in light trigger G2, resistance R15, R14, R13 connects successively, the diode D5 negative pole of current-limiting circuit is shunted in the resistance R18 other end and front end and sequin L8 one end, LED light garden connects, the diode D4 positive pole of current-limiting circuit is shunted in the resistance R13 other end and front end and the LED light garden sequin L8 other end connects, photo resistance R20 one end in light trigger G2 connects with the rectification circuit negative pole of common circuit, the other end connects with the photo resistance R3 other end in the amplifying triode S1 base stage in common circuit and light-operated current type circuit light trigger G1, sequin L9 one end, LED light garden connects with resistance R18 and R17 one end, the LED light garden sequin L9 other end connects with resistance R13 and R14 one end, sequin L10 one end, LED light garden connects with resistance R16 and R17 one end, the LED light garden sequin L10 other end connects with resistance R14 and the R15 other end, the sensitive switch n3 correspondence of zero line misconnection live wire test is contained in below zero line misconnection live wire test button, diode D4 positive pole in current-limiting circuit is shunted in one end and front end and resistance R13 connects, the other end connects with sequin L5 one end, LED light garden, the LED light garden sequin L5 other end is drawn live wire with power on/off K switch moving contact and is connected, the sensitive switch n2 correspondence of resistor-type leak(age) test is contained in below resistor-type leak(age) test button, electroprobe neon bulb L7 one end of current-limiting circuit is shunted in one end and front end and diode D5 positive pole connects, the sensitive switch n2 other end connects with resistance R11 one end of flow restricter RL, electroprobe neon bulb L6 one end in flow restricter RL is drawn live wire with power on/off K switch moving contact and is connected.
Light-operated residual current circuit breaker of the present invention, the light trigger G1 of described light-operated current type circuit adopts the photo resistance R3 of LED light garden sequin L1 and the low photoresistance of high resistance in the dark to form; The light trigger G2 of light-operated resistor-type circuit adopts the photo resistance R20 of LED light garden sequin L11 and the low photoresistance of high resistance in the dark to form.
Light-operated residual current circuit breaker of the present invention, sequin L1-L5, L8-L11 is the green light LED indicator light garden pearl adopting 220V in described LED light garden, the indicator light garden sequin that removing resistance and shell obtain.
Light-operated residual current circuit breaker of the present invention, described electroprobe neon bulb L7 is the electroprobe neon bulb of filament breakaway-element in bubble, effectively can prevent zero line misconnection live wire electric shock accidents from occurring, guarantee being perfectly safe of light-operated circuit.
Light-operated residual current circuit breaker of the present invention, the resistance to earth of light-operated current type circuit configuration is greater than 13K Ω, and earth leakage current is less than 18mA, can not effectively cut off the electricity supply; Resistance to earth is less than 13K Ω, and earth leakage current is greater than 18mA, can effectively cut off the electricity supply.The resistance to earth of light-operated resistor-type circuit configuration is less than 9K Ω, and earth leakage current is greater than 26mA, can not effectively cut off the electricity supply; Resistance to earth is greater than 9K Ω, and earth leakage current is less than 26mA, can effectively cut off the electricity supply.The resistance to earth of light-operated current type circuit and light-operated resistor-type circuit is all between 9-13 K Ω, and when earth leakage current is all between 18mA-26mA, light-operated current type circuit and light-operated resistor-type circuit work simultaneously, can effectively cut off the electricity supply.The resistance to earth entering wall point b setting, at below 11M Ω, can effectively be cut off the electricity supply when zero line misconnection live wire time.
Light-operated residual current circuit breaker of the present invention, the each component parameters of circuit is: marine products CONTACT(-12V in the magnetic coil H employing of power on/off K switch) relay coil, light-emitting diode f diameter phi 3mm, voltage is 2.5V, relay J adopts lucky ☆ Star 4098, direct current 12V, transformer Q is input AC 220V, output is 12 V, diode D1-D9 adopts model to be the diode of 1N4007, filter capacitor C is 47 μ, 35V, the resistance of resistance R1 is 10K Ω, power is 1W, resistance R2, the resistance of R4 is 75K Ω, power is 1W, resistance R5, R6, R9, the resistance of R10 is 51K Ω, power is 1W, the resistance of resistance R7, R8 is 510K Ω, and power is 1W, resistance R12 resistance 3.9M Ω, power is 1W, the resistance of resistance R13-R18 is 5.1 Ω, and power is 1W, the resistance of resistance R11, R19 is 820K Ω, and power is 1W, photoresistance 60 Ω of photo resistance R3, R20, dark resistance≤40M Ω, zero sequence coil LX adopt the zero sequence coil of residual current circuit breaker on the market, and electric leakage induced voltage is 0.7-0.8V, triode S2 adopts NPN D1133 type, and multiplication factor is β 150, triode S1 adopts NPNS9011, F634 type, and multiplication factor is β 135, LED light garden sequin L1-L5, L8-L11 are the green glow indicator light garden pearls with original-pack 220V, and removal resistance and shell obtain, light trigger G1 is made up of photo resistance R3, LED light garden sequin L1 and shell, light trigger G2 is made up of photo resistance R20, LED light garden sequin L11 and shell, sensitive switch n1, n2, n3 overall dimension 6mm × 6mm bipod, electroprobe neon bulb L6, L7 are the neon bulbs of the electroprobe adopting day island board AC100-500V.
Light-operated residual current circuit breaker of the present invention, solves at present the deficiency of current mode residual current circuit breaker and leakage protecting plug on the market.The present invention is made up of common circuit, light-operated current type circuit, light-operated resistor-type circuit, under normal service condition, common circuit works, under there is drain conditions, and light-operated current type circuit and the alternation of light-operated resistor-type circuit, when there is electric leakage, resistance to earth is greater than set point 13K Ω, and when earth leakage current is less than 18mA, light-operated current type circuit does not work, light-operated resistor-type circuit enters work, by common circuit, power on/off K switch is cut off the electricity supply.Equally, when resistance to earth is less than set point 9K Ω, when earth leakage current is greater than 26mA, light-operated resistor-type circuit does not work, and light-operated current type circuit enters work, by common circuit, power on/off K switch is cut off the electricity supply.The present invention is not by the impact with or without ground wire or resistance to earth size, and drain conditions occurs can effectively cut off the electricity supply rapidly, and the effect that before having system, disappearance zero line or ground wire electrification can be cut off the electricity supply, be a kind of safe and reliable light-operated residual current circuit breaker.Have structure simple, cost is reasonable, easy to install, has both been applicable to the floor house of ground wire or the very low place of resistance to earth uses, and is suitable for again and does not have the floor house of ground wire or the too high place use of resistance to earth.
Accompanying drawing explanation
Fig. 1 is the shell mechanism schematic diagram of the light-operated residual current circuit breaker of the present invention;
Fig. 2 is the light-operated circuit schematic diagram of the light-operated residual current circuit breaker of the present invention.
In figure, 1 is upper cover, 2 is bases, 3 is common circuits, and 4 is light-operated current type circuit, and 5 is light-operated resistor-type circuit, 6 is rectification circuits, 7 is shunting current-limiting circuits, and 8 is rear end shunting current-limiting circuits, and 9 is front end shunting current-limiting circuits, 10 is current mode leak(age) test buttons, 11 is zero line misconnection live wire test buttons, and 12 is resistor-type leak(age) test buttons, and 13 is input zero terminals, 14 is input fire line terminals, 15 is light source holes, and 16 is energizing key, and 17 is export zero terminal, 18 is export fire line terminal, and 19 is ground wire binding posts.
Embodiment
Be described further below in conjunction with the structure and working principle of accompanying drawing to light-operated residual current circuit breaker of the present invention.
See accompanying drawing, light-operated residual current circuit breaker of the present invention, comprises housing and light-operated circuit; It is characterized in that housing is made up of upper cover 1 and base 2, there are current mode leak(age) test button 10, zero line misconnection live wire to test button 11, resistor-type leak(age) test button 12, energizing key 16, light source hole 15 at upper cover 1 top, there are input zero terminal 13 and input fire line terminal 14 in base 2 front end, there is output zero terminal 17 base 2 rear end, exports fire line terminal 18, ground wire binding post 19; Light-operated circuit comprises common circuit 3, light-operated current type circuit 4, light-operated resistor-type circuit 5; Described common circuit 3 by power on/off K switch, transformer Q, rectification circuit 6, amplifying triode S1, relay J, resistance R1, R2, light-emitting diode f forms; Light-operated current type circuit 4 is by zero sequence coil LX, and shunt current-limiting circuit 7, amplifying triode S2, light trigger G1, the sensitive switch n1 of current mode leak(age) test and resistance R4 forms; Light-operated resistor-type circuit 5 shunts current-limiting circuit 9 by front end, rear end shunting current-limiting circuit 8, light trigger G2, the sensitive switch n3 of zero line misconnection live wire test and LED light garden sequin L5, and the sensitive switch n2 of resistor-type leak(age) test and flow restricter RL forms; Described common circuit 3 is connected with the photo resistance R20 one end in the photo resistance R3 one end in the light trigger G1 of light-operated current type circuit 4 and light-operated resistor-type circuit 5 light trigger G2 by resistance R2 one end and amplifying triode S1 base stage, the resistance R2 other end connects with the normally opened contact of relay J, and photo resistance R3 and the photo resistance R20 other end connect with the negative pole of rectification circuit 6; Power on/off K switch adopts magnetic-type, its moving contact connects with the common source lead-out wire of light-operated current type circuit 4 and light-operated resistor-type circuit 5, on circuit boards, power on/off K switch and transformer Q and circuit board to be assembled in housing on base 2 various light-operated circuit sets of elements dress respectively;
Input zero line and the input live wire of described common circuit 3 connect with power on/off K switch fixed contact respectively, the input zero line other end is connected on the input zero terminal 13 of housing base 2, the other end of input live wire is connected on the input fire line terminal 14 of housing base 2, the extraction zero line of power on/off K switch moving contact and draw live wire respectively by around zero sequence coil LX with export zero terminal 17 and export fire line terminal 18 and be connected; Magnetic coil H mono-lead-in wire of power on/off K switch connects with relay J normally-closed contact, and another root lead-in wire connects with rectification circuit 6 positive pole, and the energizing key 16 of power on/off K switch is located on the upper cover 1 of housing; Amplifying triode S1 emitter connects with rectification circuit 6 positive pole, collector electrode connects with relay J coil one end, base stage connects with resistance R2 one end, the resistance R2 other end connects with relay J normally opened contact, the relay J coil other end and moving contact connect with the negative pole of rectification circuit 6, resistance R1 and light-emitting diode f connects, the resistance R1 other end connects with rectification circuit 6 positive pole, light-emitting diode f negative pole connects with the negative pole of rectification circuit 6, and the light source portion correspondence of light-emitting diode f is contained in upper cover (1) light source hole 15 is used as indicator light; Transformer Q input lead is respectively with the extraction zero line of power on/off K switch moving contact with draw live wire and connect, diode D1 positive pole and the D3 negative pole of transformer Q output lead one end and rectification circuit 6 connect, the other end connects with diode D2 positive pole and D4 negative pole, the negative pole of diode D1, D2 of rectification circuit 6 connects with filter capacitor C positive pole, and the positive pole of diode D3, D4 connects with filter capacitor C negative pole; ;
Resistance R5, R6, R7 series connection of the shunting current-limiting circuit 7 of described light-operated current type circuit 4, resistance R5 one end and the zero sequence coil LX Z that goes between connects, and resistance R7 one end connects with the positive pole of amplifying triode S2 emitter, rectification circuit 6; Resistance R8, R9, R10 connect, resistance R8 one end connects with amplifying triode S2 base stage, resistance R10 one end connects with zero sequence coil LX lead-out wire P, amplifying triode S2 collector electrode connects with the LED light garden sequin L1 in light trigger G1, and the LED light garden sequin L1 other end connects with rectification circuit 6 negative pole of common circuit 3; Photo resistance R3 one end in light trigger G1 connects with rectification circuit 6 negative pole of common circuit 3, the other end connects with the photo resistance R20 one end in the light trigger G2 of light-operated resistor-type circuit 5, connect with the amplifying triode S1 base stage in common circuit 3 and resistance R2 one end simultaneously, sequin L4 one end, LED light garden and resistance R5 one end and the zero sequence coil LX Z that goes between connects, the other end and resistance R10 one end and the zero sequence coil LX P that goes between connects, sequin L3 one end, LED light garden connects with resistance R5 and R6 one end, and the other end connects with resistance R9 and R10 one end; Sequin L2 one end, LED light garden connects with resistance R6 and R7 one end, and the other end connects with resistance R8 and R9 one end; The sensitive switch n1 correspondence of current mode leak(age) test is contained in the below of current mode leak(age) test button 10, one end connects with zero sequence coil LX lead-out wire P and resistance R10, the other end connects with resistance R4 one end, and the resistance R4 other end connects with rectification circuit 6 negative pole in common circuit 3;
Diode D8, D7, D6 in described light-operated resistor-type circuit 5 front end shunting current-limiting circuit 9, resistance R19, electroprobe neon bulb L7, diode D5, LED light garden sequin L8, diode D4, resistance R12 connects successively, resistance R12 one end connects with the extraction zero line of power on/off K switch moving contact, and the lead-out wire of diode D8 positive pole accesses wall point b and ground wire binding post 19 respectively, the resistance R18 of rear end shunting current-limiting circuit 8, R17, R16, LED light garden sequin L11 in light trigger G2, resistance R15, R14, R13 connects successively, the diode D5 negative pole of current-limiting circuit 9 is shunted in the resistance R18 other end and front end and sequin L8 one end, LED light garden connects, the diode D4 positive pole of current-limiting circuit 9 is shunted in the resistance R13 other end and front end and the LED light garden sequin L8 other end connects, rectification circuit 6 negative pole and the light-emitting diode negative pole of the photo resistance R20 one end in light trigger G2 and common circuit 3 connect, the other end connects with the photo resistance R3 other end in the amplifying triode S1 base stage in common circuit 3 and light-operated current type circuit 4 light trigger G1, sequin L9 one end, LED light garden connects with resistance R18 and R17 one end, the LED light garden sequin L9 other end connects with resistance R13 and R14 one end, sequin L10 one end, LED light garden connects with resistance R16 and R17 one end, the LED light garden sequin L10 other end connects with resistance R14 and the R15 other end, the sensitive switch n3 correspondence of zero line misconnection live wire test is contained in below zero line misconnection live wire test button 11, diode D4 positive pole in current-limiting circuit 9 is shunted in one end and front end and resistance R13 connects, the other end connects with sequin L5 one end, LED light garden, the LED light garden sequin L5 other end is drawn live wire with power on/off K switch moving contact and is connected, the sensitive switch n2 correspondence of resistor-type leak(age) test is contained in below resistor-type leak(age) test button 12, electroprobe neon bulb L7 one end of current-limiting circuit 9 is shunted in one end and front end and diode D5 positive pole connects, the sensitive switch n2 other end connects with resistance R11 one end of flow restricter RL, electroprobe neon bulb L6 one end in flow restricter RL is drawn live wire with power on/off K switch moving contact and is connected.
The present invention's light-operated residual current circuit breaker circuit working process is as follows: under not there is electric leakage normal electricity consumption situation, light-operated current type circuit 4 and light-operated resistor-type circuit 5 do not work, common circuit 3 is only had to work, when there is electric leakage, light-operated current type circuit 4 alternately works with light-operated resistor-type circuit 5 together with common circuit 3.During use, input zero terminal 13 is accessed zero line, input fire line terminal 14 accesses live wire, and export zero terminal 17, output fire line terminal 18 accesses single room bus or household electrical appliances power line respectively, ground wire binding post 19 received by ground wire of entering the room, the ground wire other end of entering the room inserts point with each receptacle grounds or appliance shell connects, after light-operated residual current circuit breaker installs, press energizing key 16, power on/off K switch moving contact and fixed contact are connected, light-emitting diode f is bright, and circuit has electricity.Transformer Q output AC 12V power supply supply rectification circuit 6, after rectification and filtering, there is provided stable direct current 12V power supply to light-operated circuit, rectification circuit 6 negative pole is through relay J movable contact spring and normally-closed contact magnetic coil H one end to power on/off K switch, loop is formed with rectification circuit 6 positive pole, magnetic coil H stablizes adhesive, and light-operated residual current circuit breaker enters normal operating conditions.In use procedure, if because of a variety of causes zero line disappearance before system, magnetic coil H can not form loop and discharge, and power on/off K switch moving contact flicks effectively cuts off the electricity supply.
When single room bus or household electrical appliances exist the pulse current of slight leaky and household electrical appliances speed-regulating switch gearshift generation, the faint induced current that zero sequence coil LX produces arrives resistance R10 one end of shunting current-limiting circuit 7 through lead-out wire P and becomes loop through LED light garden sequin L4 with zero sequence lead-out wires of coil Z.Due to the metering function of resistance R5-R10 and the shunting action of LED light garden sequin L3-L4, weak current and pulse current can not make LED light garden sequin L2 luminous, more can not make amplifying triode S2 conducting, the LED light garden sequin L1 of light trigger G1 can not be luminous, photo resistance R3 is in high value state and not conducting, amplifying triode S1 base stage in common circuit 3 does not have electric current and not conducting, relay J is failure to actuate, power on/off K switch stablizes adhesive, avoids sensitivity too high and frequent movement or can not adhesive.When there is more serious electric leakage in single room bus road or household electrical appliances or the person gets an electric shock, the electric current that zero sequence coil LX produces is just larger, the electric current of at this moment zero sequence coil LX generation is through lead-out wire P, resistance R8-R10 arrives amplifying triode S2 base stage and conducting, LED light garden sequin L1 in light trigger G1 is luminous, photo resistance R3 reduces rapidly resistance and conducting, there is electric current to the amplifying triode S1 base stage of common circuit 3 and conducting, relay J adhesive, relay moving contact leaves normally-closed contact and normally opened contact is connected, amplifying triode S1 base stage is got back to through resistance R2, relay J is made to stablize adhesive, at this moment power on/off K switch magnetic coil H power-off and discharging, power on/off K switch moving contact flicks, effectively cut off the electricity supply.
When there is the pulse current produced when induced electricity and slight electric leakage and household electrical appliances speed-regulating switch are shifted gears in appliance shell, slight leakage current arrives front end shunting current-limiting circuit 9 through appliance shell lead-in wire or binding post 19 and enters wall point b and diode D8 positive pole, arrives power on/off K switch moving contact draw zero line formation loop through front end shunting current-limiting circuit 9.Due to the effect of front end shunting current limliting, and the shunting action of the current limliting of rear end resistance R13-R18 and LED light garden sequin L9, L10, slight electric leakage and pulse current can not make the LED light garden sequin L11 in light trigger G2 luminous, photo resistance R20 is in high value state, amplifying triode S1 base stage in common circuit 3 does not have electric current and obstructed, relay J is failure to actuate, power on/off K switch stablizes adhesive, avoids light-operated resistor-type circuit sensitivity too high and causes light-operated residual current circuit breaker frequent movement or at all can not adhesive.When leakage current can get an electric shock to the person more greatly, electric current arrives power on/off K switch moving contact through appliance shell lead-in wire or the ground wire binding post 19 LED light garden sequin L11 shunted to front end in current-limiting circuit 9 and rear end shunting current-limiting circuit 8 and light trigger G2 and draws zero line and form loop, LED light garden sequin L11 in light trigger G2 is luminous, photo resistance R20 resistance value reduces and conducting rapidly, the amplifying triode S1 base stage of common circuit 3 has electric current and conducting, relay J adhesive, relay moving contact leaves normally-closed contact and normally opened contact is connected, amplifying triode S1 base stage is got back to through resistance R2, relay J is made to stablize adhesive, power on/off K switch magnetic coil H power-off and discharging, power on/off K switch moving contact flicks cuts off the electricity supply effectively.When inputting zero line access terminal 13 misconnection live wire, electric current is got back to into wall point b formation loop from input zero line through front end shunting current-limiting circuit 9 and the rear end LED light garden sequin L11 shunted current-limiting circuit 8 and light trigger G2, make the LED light garden sequin L11 in light trigger G2 luminous, photo resistance R20 reduces rapidly resistance and conducting, the amplifying triode S1 base stage of common circuit 3 has electric current and conducting, relay J adhesive, relay moving contact leaves normally-closed contact and connects with normally opened contact, amplifying triode S1 base stage is got back to through resistance R2, relay J is made to stablize adhesive, the magnetic coil H power-off of power on/off K switch, power on/off K switch moving contact flicks, effectively cut off the electricity supply.Play the self-lock protection effect of zero line misconnection live wire, guarantee the safety and reliability of circuit.
For guaranteeing that light-operated residual current circuit breaker normally works.Light-operated circuit will be first checked whether normally to work before using, press current mode leak(age) test button 10, can effectively cut off the electricity supply, illustrate light-operated current type circuit 4 and common circuit 3 working properly, press resistor-type leak(age) test button 12, can effectively cut off the electricity supply, illustrate light-operated resistor-type circuit 5 and common circuit 3 working properly, press zero line misconnection live wire test button 11, can effectively cut off the electricity supply, illustrate light-operated resistor-type circuit 5 and common circuit 3 working properly, can come into operation after inspection light-operated circuit is normal, and need regularly monthly to check once, guarantee that light-operated residual current circuit breaker normally works.
Claims (3)
1. a light-operated residual current circuit breaker, comprises housing and light-operated circuit; It is characterized in that housing is made up of upper cover (1) and base (2), there are current mode leak(age) test button (10), zero line misconnection live wire to test button (11), resistor-type leak(age) test button (12), energizing key (16), light source hole (15) at upper cover (1) top, there are input zero terminal (13) and input fire line terminal (14) in base (2) front end, there is output zero terminal (17) base (2) rear end, exports fire line terminal (18), ground wire binding post (19); Light-operated circuit comprises common circuit (3), light-operated current type circuit (4), light-operated resistor-type circuit (5); Described common circuit (3) by power on/off K switch, transformer Q, rectification circuit (6), amplifying triode S1, relay J, resistance R1, R2, light-emitting diode f forms; Light-operated current type circuit (4) is by zero sequence coil LX, and shunt current-limiting circuit (7), amplifying triode S2, light trigger G1, the sensitive switch n1 of current mode leak(age) test and resistance R4 forms; Light-operated resistor-type circuit (5) shunts current-limiting circuit (9) by front end, rear end shunting current-limiting circuit (8), light trigger G2, the sensitive switch n3 of zero line misconnection live wire test and LED light garden sequin L5, the sensitive switch n2 of resistor-type leak(age) test and flow restricter RL forms; Described common circuit (3) is connected with the photo resistance R3 one end in the light trigger G1 of light-operated current type circuit (4) and the photo resistance R20 one end in light-operated resistor-type circuit (5) light trigger G2 by resistance R2 one end and amplifying triode S1 base stage, the resistance R2 other end connects with the normally opened contact of relay J, and photo resistance R3 and the photo resistance R20 other end connect with the negative pole of rectification circuit (6); Power on/off K switch adopts magnetic-type, its moving contact connects with the common source lead-out wire of light-operated current type circuit (4) and light-operated resistor-type circuit (5), on circuit boards, power on/off K switch and transformer Q and circuit board are assembled on base in housing (2) various light-operated circuit sets of elements dress respectively;
Input zero line and the input live wire of described common circuit (3) connect with power on/off K switch fixed contact respectively, the input zero line other end is connected on the input zero terminal (13) of housing base (2), the other end of input live wire is connected on the input fire line terminal (14) of housing base (2), the extraction zero line of power on/off K switch moving contact and draw live wire and be connected with exporting zero terminal (17) and export fire line terminal (18) respectively by around zero sequence coil LX; Magnetic coil H mono-lead-in wire of power on/off K switch connects with relay J normally-closed contact, and another root lead-in wire connects with rectification circuit (6) positive pole, and the energizing key (16) of power on/off K switch is located on the upper cover (1) of housing; Amplifying triode S1 emitter connects with rectification circuit (6) positive pole, collector electrode connects with relay J coil one end, base stage connects with resistance R2 one end, the resistance R2 other end connects with relay J normally opened contact, the relay J coil other end and moving contact connect with the negative pole of rectification circuit (6), resistance R1 and light-emitting diode f connects, the resistance R1 other end connects with rectification circuit (6) positive pole, light-emitting diode f negative pole connects with the negative pole of rectification circuit (6), and the light source portion correspondence of light-emitting diode f is contained in upper cover (1) light source hole (15) is used as indicator light; Transformer Q input lead is respectively with the extraction zero line of power on/off K switch moving contact with draw live wire and connect, diode D1 positive pole and the D3 negative pole of transformer Q output lead one end and rectification circuit (6) connect, the other end connects with diode D2 positive pole and D4 negative pole, the negative pole of diode D1, D2 of rectification circuit (6) connects with filter capacitor C positive pole, and the positive pole of diode D3, D4 connects with filter capacitor C negative pole;
Resistance R5, R6, R7 series connection of the shunting current-limiting circuit (7) of described light-operated current type circuit (4), resistance R5 one end and the zero sequence coil LX Z that goes between connects, and resistance R7 one end connects with the positive pole of amplifying triode S2 emitter, rectification circuit (6), resistance R8, R9, R10 connect, resistance R8 one end connects with amplifying triode S2 base stage, resistance R10 one end connects with zero sequence coil LX lead-out wire P, amplifying triode S2 collector electrode connects with the LED light garden sequin L1 in light trigger G1, and the LED light garden sequin L1 other end connects with rectification circuit (6) negative pole of common circuit (3), photo resistance R3 one end in light trigger G1 connects with rectification circuit (6) negative pole of common circuit (3), the other end connects with the photo resistance R20 one end in the light trigger G2 of light-operated resistor-type circuit (5), connect with the amplifying triode S1 base stage in common circuit (3) and resistance R2 one end simultaneously, sequin L4 one end, LED light garden and resistance R5 one end and the zero sequence coil LX Z that goes between connects, the other end and resistance R10 one end and the zero sequence coil LX P that goes between connects, sequin L3 one end, LED light garden connects with resistance R5 and R6 one end, the other end connects with resistance R9 and R10 one end, sequin L2 one end, LED light garden connects with resistance R6 and R7 one end, and the other end connects with resistance R8 and R9 one end, the sensitive switch n1 correspondence of current mode leak(age) test is contained in the below of the button (10) of current mode leak(age) test, one end connects with zero sequence coil LX lead-out wire P and resistance R10, the other end connects with resistance R4 one end, and the resistance R4 other end connects with rectification circuit (6) negative pole in common circuit (3),
Diode D8, D7, D6 in described light-operated resistor-type circuit (5) front end shunting current-limiting circuit (9), resistance R19, electroprobe neon bulb L7, diode D5, LED light garden sequin L8, diode D4, resistance R12 connects successively, resistance R12 one end connects with the extraction zero line of power on/off K switch moving contact, and diode D8 positive outside wire accesses wall point b and ground wire binding post (19) respectively, the resistance R18 of rear end shunting current-limiting circuit (8), R17, R16, LED light garden sequin L11 in light trigger G2, resistance R15, R14, R13 connects successively, the diode D5 negative pole of current-limiting circuit (9) is shunted in the resistance R18 other end and front end and sequin L8 one end, LED light garden connects, the diode D4 positive pole of current-limiting circuit (9) is shunted in the resistance R13 other end and front end and the LED light garden sequin L8 other end connects, rectification circuit (6) negative pole and the light-emitting diode f negative pole of the photo resistance R20 one end in light trigger G2 and common circuit (3) connect, the other end connects with the photo resistance R3 other end in the amplifying triode S1 base stage in common circuit (3) and light-operated current type circuit (4) light trigger G1, sequin L9 one end, LED light garden connects with resistance R18 and R17 one end, the LED light garden sequin L9 other end connects with resistance R13 and R14 one end, sequin L10 one end, LED light garden connects with resistance R16 and R17 one end, the LED light garden sequin L10 other end connects with resistance R14 and the R15 other end, the sensitive switch n3 correspondence of zero line misconnection live wire test is contained in zero line misconnection live wire test button (11) below, diode D4 positive pole in current-limiting circuit (9) is shunted in one end and front end and resistance R13 connects, the other end connects with sequin L5 one end, LED light garden, the LED light garden sequin L5 other end is drawn live wire with power on/off K switch moving contact and is connected, the sensitive switch n2 correspondence of resistor-type leak(age) test is contained in resistor-type leak(age) test button (12) below, electroprobe neon bulb L7 one end of current-limiting circuit (9) is shunted in one end and front end and diode D5 positive pole connects, the sensitive switch n2 other end connects with resistance R11 one end of flow restricter RL, electroprobe neon bulb L6 one end in flow restricter RL is drawn live wire with power on/off K switch moving contact and is connected.
2. light-operated residual current circuit breaker according to claim 1, is characterized in that the light trigger G1 of described light-operated current type circuit adopts the photo resistance R3 of LED light garden sequin L1 and the low photoresistance of high resistance in the dark to form; The light trigger G2 of light-operated resistor-type circuit adopts the photo resistance R20 of LED light garden sequin L11 and the low photoresistance of high resistance in the dark to form.
3. light-operated residual current circuit breaker according to claim 1 is characterized in that sequin L1-L5, L8-L11 is the green light LED indicator light garden pearl adopting 220V in described LED light garden, the indicator light garden sequin that removing resistance and shell obtain.
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| CN201510000162.XA CN104467781B (en) | 2015-01-03 | 2015-01-03 | Light-control electric-leakage circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112310816A (en) * | 2020-09-18 | 2021-02-02 | 安徽正日电气有限公司 | Low-voltage lighting distribution box |
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| CN101728140A (en) * | 2008-10-27 | 2010-06-09 | 国网武汉高压研究院 | High voltage or ultra-high voltage high-current circuit breaker |
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| CN103943431A (en) * | 2014-05-10 | 2014-07-23 | 六盘水金星机电设备有限公司 | Improved residual current circuit breaker |
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| US5530322A (en) * | 1994-04-11 | 1996-06-25 | Lutron Electronics Co., Inc. | Multi-zone lighting control system |
| CN101728140A (en) * | 2008-10-27 | 2010-06-09 | 国网武汉高压研究院 | High voltage or ultra-high voltage high-current circuit breaker |
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| CN112310816A (en) * | 2020-09-18 | 2021-02-02 | 安徽正日电气有限公司 | Low-voltage lighting distribution box |
| CN112310816B (en) * | 2020-09-18 | 2022-08-30 | 安徽正日电气有限公司 | Low-voltage lighting distribution box |
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