CN100483882C - Integrated breaker for electric leakage and manufacturing method thereof - Google Patents
Integrated breaker for electric leakage and manufacturing method thereof Download PDFInfo
- Publication number
- CN100483882C CN100483882C CNB2005100728912A CN200510072891A CN100483882C CN 100483882 C CN100483882 C CN 100483882C CN B2005100728912 A CNB2005100728912 A CN B2005100728912A CN 200510072891 A CN200510072891 A CN 200510072891A CN 100483882 C CN100483882 C CN 100483882C
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- electric leakage
- mutual inductor
- zero sequence
- sequence current
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
- A41D27/24—Hems; Seams
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D1/00—Garments
- A41D1/06—Trousers
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41F—GARMENT FASTENINGS; SUSPENDERS
- A41F17/00—Means for holding-down garments
- A41F17/04—Straps on the lower end of legs of trousers
Abstract
The invention relates to mini-type leakage breaker which integrates electrical leakage detection device and image converter, and manufacturing method thereof. The leakage breaker of the invention includes: main body; image converter disposed on the main body; slot disposed apart from the image converter for a certain distance; the leakage detection device containing input end, grounding end of power arranged in the slot and coated with conductive material, connecting ends of first and second coils, and which confirms electrical leakage status according to the difference of output current of the image converter and provides cut-off signal to external output power as electrical leakage happening; and casing connected to the main body. The main body also includes: the first and second coils extended and connected with the image converter, and first and second contact portions contacting with connection ends of the first and second coils; first and second grooves for baring the power input end and the grounding end. The leakage breaker of the invention can realize miniaturization and cut back production cost, simplify processing procedure.
Description
Technical field
The present invention relates to residual current circuit breaker, particularly relate to the small-sized residual current circuit breaker and the manufacture method thereof of integrated electric leakage detection device and zero sequence current mutual inductor.
Background technology
Residual current circuit breaker for metals such as box, metal shell part the metal of electric equipment outside because of leak electricity or the ruined situation that insulate under, if the earth current that is produced surpasses certain value, then at the device of the circuit of the operating time of appointment internal resistance power cutoff device, mainly be arranged on boiler, chilled and hot water apparatus, soldering apparatus, electric distribution board for apartment, air-conditioning, industrial electricity apparatus etc., phenomenon such as the fire that caused of preventing to leak electricity, electric shock accidents, equipment fault.
Common residual current circuit breaker comprises zero sequence current mutual inductor, electric leakage detecting element and occluding device, and Fig. 1 is the schematic configuration schematic diagram of residual current circuit breaker.
As shown in Figure 1, residual current circuit breaker comprises: reel 2 coils and the zero sequence current mutual inductor 10 that forms on toroidal core; Receive two difference between currents that magnetic flux produced that coil produced of zero sequence current mutual inductor 10, to confirm whether to have the electric leakage detecting element 12 of electric leakage; And electric leakage detecting element 12 prevents that power supply from flowing to the circuit breaker 14 of the electric equipment that is connected with residual current circuit breaker when detecting the electric leakage situation.
When the electric equipment that is connected with residual current circuit breaker normally moves, flowing into line (line) electric current, the earth current of zero sequence current mutual inductor 10 and line current and the earth current that flows out from zero sequence current mutual inductor 10 all equates, therefore circuit breaker 14 is in idle state, but in case ground fault takes place, then by the inflow/outflow electric current generation of zero sequence current mutual inductor 10 and the variation of ground fault current value equal extent, 12 of detecting elements of electric leakage detect this difference between current and make circuit breaker 14 actions, prevent that power supply from flowing into electric equipment.
Fig. 2 is the physical circuit figure of common residual current circuit breaker.
As shown in the figure, residual current circuit breaker comprises: connect line current and earth current by the output of electric equipment simultaneously, with the zero sequence current mutual inductor 10 of the difference of line of induction electric current and earth current; Be connected with the 1st and the 2nd coil of zero sequence current mutual inductor 10, receive that the 1st coil and the 2nd coil are subjected to the influence of magnetic flux and the difference between current that produces, to judge whether the control part 12 as the electric leakage detecting element of electric leakage situation; During electricity equipment generation leaky, the switch 16 that moves according to the control of control part 12; When electric leakage takes place, utilize switch 16 to breaking coil (TC) input voltage, and close the circuit breaker 14 of (off) according to the magnetic force of breaking coil (TC).
Except zero sequence current mutual inductor 10, this residual current circuit breaker also comprises: control part 12; Switch 16; Be used for the alternating current of electric equipment output is transformed to bridge diode (bridge diode) 18 active components such as grade of direct current; Reach resistance component (R1, R2, R3), capacitive element manual components such as (C1, C2, C3, C4, C5), therefore, it is big that the size of circuit becomes, and the miniaturization of residual current circuit breaker is subjected to certain restriction.
That is to say; zero sequence current mutual inductor and electronic control circuit are independently made separately; therefore; its size and dwindling of volume are subjected to a lot of restrictions; particularly residual current circuit breaker is exposed and is arranged on external environment condition (meteorological variation etc.), therefore, if in order to protect residual current circuit breaker not to be subjected to the influence of external environment condition; a shell is set, and then its volume can become big more.
And,, need to carry out special mediation process, so productivity is lowered for the characteristic of reconciling zero sequence current mutual inductor and the characteristic of electronic control circuit.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of small-sized residual current circuit breaker, the detection device that will leak electricity is made on the miniature printed circuit board with bare chip (bare chip) state, reconcile the bare chip state the electric leakage detection device characteristic and will be suitable for the characteristic of zero sequence current mutual inductor of this detection device after, the detection device that will leak electricity is connected combination and is arranged in the housing with zero sequence current mutual inductor, to solve above-mentioned shortcoming and problem points.
Another technical problem to be solved by this invention is, and is integrated by zero sequence current mutual inductor and electric leakage detection device are carried out, and avoids being subjected to outside image, thereby can prevent misoperation, can eliminate the restriction on the installing space of residual current circuit breaker.
In order to achieve the above object, the invention provides a kind of residual current circuit breaker, its characteristics are, comprising: body; Be arranged at the zero sequence current mutual inductor on this body; Slot with the setting separated by a distance of this zero sequence current mutual inductor; Be arranged in this slot and comprise power input, earth terminal and the 1st and the 2nd coil connecting terminal, difference according to the magnitude of current of this zero sequence current mutual inductor output confirms to have or not the electric leakage situation, when electric leakage takes place to the electric leakage detection device of outside out-put supply supply disabling signal; And the housing that is connected with this body, this body also includes: prolong the 1st and the 2nd coil that is connected with this zero sequence current mutual inductor, and the 1st and the 2nd contact site that contacts with the 1st and the 2nd coil connecting terminal separately; And this power input and earth terminal be exposed to the 1st and the 2nd outside required hole.
The present invention also provides a kind of integrated breaker for electric leakage, it is characterized in that, comprising: body; Zero sequence current mutual inductor is arranged on the above-mentioned body; Slot is arranged to above-mentioned zero sequence current mutual inductor separated by a distance on above-mentioned body; The electric leakage detection device, be arranged in the above-mentioned slot, and comprise the power input, earth terminal and the 1st and the 2nd coil connecting terminal that are coated with conductive material, difference according to the magnitude of current that is input to above-mentioned zero sequence current mutual inductor confirms to have or not the electric leakage situation, if leak electricity, then to outside out-put supply supply shutoff signal; And the lid that is connected with above-mentioned body, wherein, above-mentioned body also comprises: the 1st and the 2nd contact site, and prolongation is connected with the 1st and the 2nd coil of above-mentioned zero sequence current mutual inductor, and contacts with the above-mentioned the 1st and the 2nd coil connecting terminal separately; The 1st hole is used for above-mentioned power input is exposed to the outside; The 2nd hole is used for above-mentioned earth terminal is exposed to the outside.
As mentioned above, the present invention can assemble technology by semiconductor and make electric leakage detection device small-sized, film, and should leak electricity detection device and zero sequence current mutual inductor are arranged in the shell, can realize the miniaturization of residual current circuit breaker, so the installation of residual current circuit breaker is not subjected to the restriction on the space.
And, simultaneously electric leakage detection device and zero sequence current mutual inductor are tested, can reduce error, improve the electric leakage response characteristic, thereby can reduce production costs, simplify technical process.
Describe the bright specific embodiment of this law in detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the generalized schematic of common residual current circuit breaker;
Fig. 2 looks schematic diagram for the physical circuit of common residual current circuit breaker;
Fig. 3 a to Fig. 3 g is electric leakage detection device and manufacture process schematic diagram thereof among the present invention;
Fig. 4 is the structural representation of the integrated breaker for electric leakage of one embodiment of the invention;
Fig. 5 a and 5b are the structural representation of the integrated breaker for electric leakage of another embodiment of the present invention;
Fig. 6 is the flow chart of the one-piece type zero sequence current mutual inductor manufacture method of electric leakage detection device among the present invention.
Embodiment
Fig. 3 a to 3g is the process schematic diagram that is used for illustrating the present invention's electric leakage detection device and manufacture method thereof.
For integrally formed zero sequence current mutual inductor and electric leakage detection device, the present invention makes the electronic circuit that is contained on the electric leakage detection device with the bare chip state, and is arranged on the printed circuit board (PCB).Thereby except zero sequence current mutual inductor, printed circuit board (PCB) is provided with all electronic circuits on Fig. 2 line map, and in order to dwindle circuit, manual components is contained on the control part.And printed circuit board (PCB) is provided with A.C.-D.C. converter and switches such as the control part that comprises manual components, bridge diode.
See also Fig. 3 a to 3g, wherein, Fig. 3 a be for bare chip is set on substrate the view of printed circuit, Fig. 3 b is for finishing gold-plated view on the printed circuit board (PCB) in Fig. 3 a.
Finish the circuit printing and gold-plated after, shown in Fig. 3 c, bare chip is set, carry out the adhesion operation, Fig. 3 d is the view of adhesion operation after finishing.
Afterwards,, ensure confidence level, carry out and solidify (curing) operation, by the connection between the wire-bonded execution unit (Fig. 3 e) for the distortion and the breakage of anti-locking apparatus.Then,, carry out 1 test, test the laggard capable epoxy sealing (epoxy) that finishes, to realize the insulation (Fig. 3 f) of parts in order to confirm the whether normally operation of detection device of leaking electricity.At last, sealing device is cured and 2 tests, and after compressing, cuts off substrate and finish electric leakage detection device (Fig. 3 g).
More than the detection device that will leak electricity is manufactured a chip manufacture process be illustrated, in order to be suitable for this electric leakage detection device in the present invention, after carrying out wire-bonded and 1 test, should regulate the characteristic of electric leakage detection device and zero sequence current mutual inductor, seal behind mapping (mapping) electric leakage detection device and the zero sequence current mutual inductor.
Fig. 4 is the structural representation that is used to illustrate the integrated breaker for electric leakage of one embodiment of the invention, in Fig. 4, roughly illustrate the structure of electric leakage detection device 130, after illustrating the semiconductor device that is provided with as the bare chip state among Fig. 3 e, the state of wire-bonded.
As shown in the figure, zero sequence current mutual inductor and electric leakage detection device are integrally formed and the residual current circuit breaker that constitutes comprises: body 100, and it has and is through with two or the cylindrical electric wire breakthrough part 300 of three wires that is used to confirm to have or not the electric leakage situation; Be installed in the electric wire breakthrough part 300 of body 100, on toroidal core, reel two coils and the zero sequence current mutual inductor 110 that constitutes; The slot 120 that is provided with across certain distance with zero sequence current mutual inductor 110; Be arranged on the electric leakage detection device 130 in the slot 120; Prolong conductivity type the 1st and the 2nd coil connecting portion 150A, the 150B of the 1st and the 2nd coil that zero sequence current mutual inductor 110 is arranged; The the 1st and the 2nd hole 170,180; And, be connected with body 100 and constitute the lid 140 of a housing.
Here, the one side of electric leakage detection device 130 is provided with and comprises: poor according to the magnitude of current that is input to zero sequence current mutual inductor, confirm the control part of electric leakage situation; Be used to move the affirmation result who has or not the electric leakage situation according to control part, driving device ground control power supply flows into the switch of the circuit breaker of electric equipment; And be connected with switch, realize the parts of AC-DC such as bridge diode (AD) converter of AC-DC conversion, another side has insulating properties.And, electric leakage detection device 130 comprises: in order to coil connecting terminal 160A, the 160B that is connected with zero sequence current mutual inductor, the link 190 and the earth terminal 200 of reception outer power voltage, be equiped with on each end (160A, 160B, 190,200) of the one side of parts and be coated with conductive material.
Electric leakage detection device 130 is arranged under the situation of slot 120, prolonging the 1st coil connecting portion 150A that the 1st coil is arranged contacts with the 1st coil connecting terminal 160A of electric leakage detection device 130, prolong the 2nd coil connecting portion 150B that the 2nd coil is arranged and contact, make the difference of the current value that in zero sequence current mutual inductor, takes place be input in the detection device 130 that leaks electricity with the 2nd coil connecting terminal 160B of electric leakage detection device 130.
And power input 190 and earth terminal 200 are connected with outside (for example breaking coil, circuit breaker etc.) by the 1st hole and the 2nd hole 170,180.For power input 190 is contacted with external equipment with earth terminal 200, by the 1st and the 2nd hole 170,180 power input 190 and earth terminal 200 are exposed to the outside, perhaps connect the conductivity link by the method for welding separately, and this conductivity link extends to 170,180 outsides, the 1st and the 2nd hole from each end 190,200 always at power input 190 and earth terminal 200.No matter be suitable for which kind of method, the power input 190 at body 100 backs and earth terminal 200 or the contact jaw that is connected with this end conduction all are exposed to the outside.When by the 1st and the 2nd hole 170,180 power input 190 and earth terminal 200 being exposed to the outside, the length of power input 190 and earth terminal 200 is good greater than the length of the 1st and the 2nd coil connecting terminal 160A, 160B.
Here, body 100 and housing 140 are made by megohmite insulant, and its connected mode can be for clamp-oning variety of ways such as fixing, and body 100 mutually combines by a kind of mode in this kind mode with housing 140.
Fig. 5 a and 5b are the structural representation of the integrated breaker for electric leakage of another embodiment of the present invention, and as shown in the figure, electric leakage detection device 220 has and the similar form of zero sequence current mutual inductor.In such cases, also utilize after on the electric leakage detection device 220 semiconductor device of the bare chip form as shown in Fig. 3 e being set the state of wire-bonded (wire bonding).
Residual current circuit breaker in another embodiment of the present invention of integrally formed zero sequence current mutual inductor and electric leakage detection device as shown, comprise: body 210, it has and is through with in order to confirm to have or not two or the cylindrical electric wire breakthrough part 300 of three wires of electric leakage situation; Be sheathed on the electric wire breakthrough part 300 of body 210, on toroidal core, reel two coils and the zero sequence current mutual inductor 110 that constitutes; Constitute ring-type with zero sequence current mutual inductor 110 identical sizes, one side is provided with the parts that detect the electric leakage situation, another side then has insulating properties, and the mode that contacts with zero sequence current mutual inductor 110 with this another side with insulating properties is sheathed on the electric leakage detection device 130 of electric wire breakthrough part 300; Prolong conductivity type the 1st and the 2nd coil connecting portion 150A, the 150B of the 1st and the 2nd coil that zero sequence current mutual inductor 110 is arranged; The the 1st and the 2nd groove 240A, 240B; And, be combined into the lid 230 of a shell with body 210.Here, the 1st and the 2nd groove 240A, 240B have and can be fit to power input 190 and earth terminal 200 are exposed to outside thickness, can be arranged on the housing 230 or body 210 and covering on 230.
For zero sequence current mutual inductor 110 and electric leakage detection device 220 are sheathed on electric wire breakthrough part 300, the center diameter of a circle of zero sequence current mutual inductor 110 and electric leakage detection device 220 should be compared with the diameter D of electric leakage detection device 220 has certain surplus (margin) α.And, be subjected to external action and the situation of being out of shape or shaking for fear of zero sequence current mutual inductor 110 and electric leakage detection device 220, also can utilize various devices assembling zero sequence current mutual inductor 110 and the electric leakage detection devices 220 of being connected and fixed, improve stable degree.
Ring-type electric leakage detection device 220 is provided with: the control part of confirming to have or not the electric leakage situation according to the difference that is input to the magnitude of current on the zero sequence current mutual inductor; According to the electric leakage situation result of control part, the switch of the circuit breaker of the source current of the electric equipment of driving device ground control inflow; Be connected with this switch, realize the such parts such as AC-DC (AD) converter of bridge diode of AC-DC conversion.And electric leakage detection device 220 comprises: in order to link 160A, the 160B that is connected with zero sequence current mutual inductor; Reception is from the power input 190 and the earth terminal 200 of the supply voltage of outside, be provided with on each end (160A, 160B, 190,200) of the one side of parts and be coated with conductive material, particularly the conductive material on the 1st and the 2nd coil connecting terminal 160A, the 160B is coated to its back side always shown in Fig. 5 b.
The another side (one side with insulating properties) of electric leakage detection device 220 is arranged on the zero sequence current mutual inductor 110, then prolonging the 1st coil connecting portion 150A that is connected with the 1st coil contacts with the 1st coil connecting terminal 160A of electric leakage detection device 130, prolong the 2nd coil connecting portion 150B that is connected with the 2nd coil and contact, feasible the poor of the detection device 130 reception current values that zero sequence current mutual inductor produced of leaking electricity with the 2nd coil connecting terminal 160B of electric leakage detection device 130.Be coated to its back side because the conductive material on the 1st and the 2nd coil connecting terminal 160A, the 160B prolongs always, therefore can realize above-mentioned steps.And power input 190 and earth terminal 200 are connected with outside (for example breaking coil, circuit breaker etc.) by the 1st groove and the 2nd groove 240A, 240B.
Body 210 and lid 230 are made by megohmite insulant, and this body 210 and lid 230 are each other by clamp-oning multiple a kind of concluding of concluding in the mode such as the mode of concluding.
The shape of electric leakage detection device is not limited to embodiment among Fig. 4 and Fig. 5, so long as can be integrally formed and realize miniaturization with zero sequence current mutual inductor, then can be out of shape or be applied as other forms.
The manufacture method of residual current circuit breaker with said structure is as follows.
Fig. 6 is the manufacture method flow chart of the one-piece type zero sequence current mutual inductor of electric leakage detection device among the present invention.
At first, at the design drawing printed circuit (S100) that designs in advance in order to install bare chip on printed circuit board (PCB), to the chip installation area territory on the printed circuit board (PCB) and the wiring position carry out gold-plated after, bare chip (S110) is installed on the relevant position.This bare chip that is mounted comprises: be connected with zero sequence current mutual inductor and receive current value poor of zero sequence current mutual inductor output, judge the electric leakage situation that has or not, and comprise the required various manual components of electric leakage detection device operation, play the bare chip of control part effect; Output according to control part is driven, in order to the bare chip that plays switch block (for example, thyristor (thyristor)) effect of the electric equipment that opens circuit; And be equivalent to realize the bare chip of the bridge diode of AC-DC conversion.
Afterwards, carry out adhesion operation and curing schedule (S120), this curing schedule can be avoided the distortion and the breakage of device, and ensures confidence level, by the connection (S130) between the wire-bonded realization parts.And carry out 1 test, to confirm the whether normally operation (S140) of electric leakage detection device.
Zero sequence current mutual inductor is made (S200) by the manufacture craft different with the electric leakage detection device, connects the electric leakage detection device and the zero sequence current mutual inductor of 1 EOT, and regulating characteristics is also carried out in conjunction with (S300).After finishing, seal (epoxy) and realize the insulating properties (S310) of parts, to the electric leakage detection device of sealing and zero sequence current mutual inductor is cured and 2 tests (S320).
Behind 2 EOTs, as shown in Figure 4, the electric leakage detection device and the zero sequence current mutual inductor of combination is arranged on body 100 and slot 120, concludes body 100 and lid 140.Thereby the control part of electric leakage detection device 130 is connected by link and connecting portion 150A-160A, 150B-160B separately with the coil of zero sequence current mutual inductor, and the power input 190 and the earth terminal 200 of electric leakage detection device 130 are exposed to the outside.
As from the foregoing, residual current circuit breaker among the present invention is by body 100 and cover the electric leakage detection device that small-sized, the film that constitutes by assembling zero sequence current mutual inductor and semiconductor is set in 140 shells that constitute one-piece typely, thereby can realize the miniaturization of residual current circuit breaker.
Certainly, the general technical staff of the technical field of the invention can directly obtain other concrete examples without change technical scheme of the present invention or essential feature.Therefore, above fact Example only is preferable example, can not limit technical scheme of the present invention.Protection scope of the present invention mainly is presented in the technique scheme, all is contained in protection scope of the present invention from meaning, scope and all changes of equal notion derivation of technique scheme or the example of distortion.
Claims (8)
1. an integrated breaker for electric leakage is characterized in that, comprising:
Body,
Zero sequence current mutual inductor is arranged on the above-mentioned body,
Slot, on above-mentioned body, be arranged to above-mentioned zero sequence current mutual inductor separated by a distance,
The electric leakage detection device, be arranged in the above-mentioned slot, and comprise the power input, earth terminal and the 1st and the 2nd coil connecting terminal that are coated with conductive material, difference according to the magnitude of current that is input to above-mentioned zero sequence current mutual inductor confirms to have or not the electric leakage situation, if leak electricity, then supply shutoff signal to outside out-put supply, and
The lid that is connected with above-mentioned body;
Above-mentioned body also comprises:
The the 1st and the 2nd contact site, prolongation is connected with the 1st and the 2nd coil of above-mentioned zero sequence current mutual inductor, and contacts with the above-mentioned the 1st and the 2nd coil connecting terminal separately,
The 1st hole is used for above-mentioned power input is exposed to the outside,
The 2nd hole is used for above-mentioned earth terminal is exposed to the outside.
2. integrated breaker for electric leakage according to claim 1 is characterized in that, above-mentioned body and above-mentioned lid are made by megohmite insulant.
3. integrated breaker for electric leakage according to claim 1 is characterized in that, contacting respectively on above-mentioned power input and the earth terminal has the conductivity link, and above-mentioned conductivity link is exposed to the outside by above-mentioned the 1st hole or the 2nd hole separately.
4. an integrated breaker for electric leakage is characterized in that, comprising:
Body has and connects the cylindrical electric wire breakthrough part be provided with two or three wires,
Zero sequence current mutual inductor, it is sheathed on the electric wire breakthrough part of above-mentioned body,
The electric leakage detection device, comprise the power input that is coated with conductive material, earth terminal, the the 1st and the 2nd coil connecting terminal, difference according to the magnitude of current that is input to above-mentioned zero sequence current mutual inductor confirms to have or not the electric leakage situation, if the electric leakage situation takes place, then to outside out-put supply supply shutoff signal, the equal and opposite in direction of profile and above-mentioned zero sequence current mutual inductor also is sheathed on the electric wire breakthrough part of above-mentioned body, it simultaneously is equiped with the parts that are used to detect the electric leakage situation, another side has insulating properties, above-mentioned another side with insulating properties contacts with above-mentioned zero sequence current mutual inductor, and
The lid that is connected with above-mentioned body;
Above-mentioned body also comprises:
The the 1st and the 2nd contact site, prolongation is connected with the 1st and the 2nd coil of above-mentioned zero sequence current mutual inductor, and contacts with the above-mentioned the 1st and the 2nd coil connecting terminal separately,
The 1st groove is used for above-mentioned power input is exposed to the outside,
The 2nd groove is used for above-mentioned earth terminal is exposed to the outside.
5. integrated breaker for electric leakage according to claim 4 is characterized in that, above-mentioned body and above-mentioned lid are made by megohmite insulant.
6. integrated breaker for electric leakage according to claim 4 is characterized in that, the above-mentioned the 1st and the 2nd groove is arranged at above-mentioned covering.
7. integrated breaker for electric leakage according to claim 4 is characterized in that, the above-mentioned the 1st and the 2nd groove is arranged at body and covers.
8. integrated breaker for electric leakage according to claim 4 is characterized in that, the above-mentioned the 1st and the 2nd coil connecting terminal prolongs certain-length from the above-mentioned another side towards having insulating properties that is coated with conductive material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040035304 | 2004-05-18 | ||
| KR1020040035304A KR100549396B1 (en) | 2004-05-18 | 2004-05-18 | Apparatus for Breaking Leakage Circuit and Manufacturing Method Thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1700547A CN1700547A (en) | 2005-11-23 |
| CN100483882C true CN100483882C (en) | 2009-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100728912A Expired - Fee Related CN100483882C (en) | 2004-05-18 | 2005-05-17 | Integrated breaker for electric leakage and manufacturing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100549396B1 (en) |
| CN (1) | CN100483882C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200454586Y1 (en) | 2009-03-11 | 2011-07-12 | 엘에스산전 주식회사 | Earth leakage trip mechanism assembly for earth leakage breaker |
| ITMI20131736A1 (en) * | 2013-10-17 | 2015-04-18 | Abb Spa | CURRENT TRANSFORMER FOR LOW VOLTAGE DIFFERENTIAL SWITCHES |
| KR20170009661A (en) | 2015-07-17 | 2017-01-25 | 김경욱 | Apparatus of preventing leakage of electric for boiler |
| KR20170031588A (en) | 2015-09-11 | 2017-03-21 | 김경욱 | Apparatus of preventing leakage of electric for boiler |
| KR20170031586A (en) | 2015-09-11 | 2017-03-21 | 김경욱 | Apparatus of preventing leakage of electric for boiler |
| CN105629162B (en) * | 2016-01-06 | 2019-05-14 | 中车南京浦镇车辆有限公司 | The method of predicted orbit vehicle breaker work failure rate |
-
2004
- 2004-05-18 KR KR1020040035304A patent/KR100549396B1/en not_active IP Right Cessation
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- 2005-05-17 CN CNB2005100728912A patent/CN100483882C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR100549396B1 (en) | 2006-02-03 |
| KR20050110337A (en) | 2005-11-23 |
| CN1700547A (en) | 2005-11-23 |
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