CN203521345U - Residual current circuit breaker - Google Patents
Residual current circuit breaker Download PDFInfo
- Publication number
- CN203521345U CN203521345U CN201320698529.6U CN201320698529U CN203521345U CN 203521345 U CN203521345 U CN 203521345U CN 201320698529 U CN201320698529 U CN 201320698529U CN 203521345 U CN203521345 U CN 203521345U
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- Prior art keywords
- residual current
- electromagnetic system
- circuit breaker
- iron core
- bobbin
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- Expired - Lifetime
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- 238000009434 installation Methods 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 51
- 230000003068 static effect Effects 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
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Abstract
Provided is a residual current circuit breaker. The problem that the residual current tripping device carries out tripping unreasonably and cannot carry out tripping reliably when the existing residual current circuit breaker carries out residual current protection is solved. The residual current circuit breaker comprises a moving contact system, an electromagnetic system tripping device and a residual current tripping device, the electromagnetic system tripping device is internally provided with an ejector pin and includes a residual current coil former and a residual current coil wound on the residual current coil former, an ejector shaft is sheathed in the residual current coil former, the top part of the ejector shaft and the end part of the ejector pin are fixedly connected, and the ejector pin has a first position for installation and a second position for pushing up a lock catch in the moving contact system to enable the lock catch to be tripped. According to the residual current circuit breaker, the ejector shaft of the residual current tripping device and the ejector pin of the electromagnetic system tripping device are directly connected, which avoids the use of a torsion ejector pin, saves the processing and production costs, enables the space inside a residual current circuit breaker shell to be utilized more reasonably and enables a product to be reliably tripped.
Description
Technical field
The utility model relates to a kind of circuit breaker, is specifically related to a kind of residual current circuit breaker.
Background technology
Residual current circuit breaker (residual current circuit-breaker) is the switch of energy auto-action when leakage current surpasses predetermined value in circuit.Conventional residual current circuit breaker is divided into voltage-type and current mode two classes, and current mode is divided into two kinds of electromagnetic type and electron types, and residual current circuit breaker is used for preventing that the person from getting an electric shock.Existing residual current circuit breaker comprises housing and operating mechanism, is provided with movable contact system, electromagnetic system release, leakage tripping device, zero-sequence transformer, bimetal leaf and wiring board in described housing.When short circuit, the action of the push rod of electromagnetic system release, promotes snap close, thereby makes the snap close release of circuit breaker, and circuit breaker disconnects.When leakage current surpasses predetermined value, now leakage tripping device action, now owing to affected by residual current circuit breaker inner space, push rod on leakage tripping device is conventionally by a torsion push rod and snap close interlock (referring to accompanying drawing 1), the kind of drive of this spline structure, material to push rod, moulding angle, the stroke of leakage tripping device iron core action requires very high, in making, be difficult to hold, part push rod is plastics compactings simultaneously, the arm of force is long, the transmission of power is passed to effect bad, so while often causing product to occur leakage current, leakage tripping device can not make moving contact of breaker system disconnect reliably, make product have great potential safety hazard.
Summary of the invention
When solving in background technology existing residual current circuit breaker earth leakage protective, the unreasonable and problem that can not reliably thread off of leakage tripping device dropout mode, the utility model provides a kind of residual current circuit breaker.
The technical solution of the utility model is: a kind of residual current circuit breaker, comprise housing, in described housing, be provided with movable contact system, electromagnetic system release, leakage tripping device and wiring board, described movable contact system be provided with snap close and with the suitable tripping of snap close, described electromagnetic system release comprises electromagnetic system bobbin and is wrapped in the electromagnetic system coil on electromagnetic system bobbin, in described electromagnetic system bobbin, be provided with push rod, the moving iron core of electromagnetic system and electromagnetic system static iron core, described leakage tripping device comprises electric leakage bobbin and is wrapped in the electric leakage coil on electric leakage bobbin, in described electric leakage bobbin, be arranged with apical axis, described apical axis moves iron core and coordinates with electromagnetic system bobbin axial slip through the electromagnetic system in electromagnetic system bobbin, the end Joint of the top of described apical axis and push rod, the second place that primary importance when described push rod has installation and pushing tow snap close are threaded off snap close.
As a kind of improvement of the present utility model, in described electric leakage bobbin, be provided with dropout iron core and with the suitable static iron core of dropout iron core, one end of described dropout iron core and the end face of apical axis are suitable.
As a kind of improvement of the present utility model, between described dropout iron core and static iron core, be provided with back-moving spring.
As further improvement of the utility model, described housing is provided with positioning boss, and described positioning boss is provided with erection column, and described erection column is established the installing hole with the bobbin that leaks electricity through wiring board.
As further improvement of the utility model, the inwall of described housing is provided with lead, and described lead is provided with the through hole passing for apical axis.
As further improvement of the utility model, described electric leakage bobbin is provided with radome outward.
As further improvement of the utility model, the end of described push rod is provided with storage tank, and described apical axis inserts in storage tank.
As further improvement of the utility model, between the moving iron core of described apical axis and electromagnetic system, be provided with gap.
As further improvement of the utility model, described push rod is arranged with transmission tube outward, and the moving iron core of one end of described transmission tube and electromagnetic system is suitable.
The beneficial effects of the utility model are; the apical axis of leakage tripping device is directly connected with the push rod of electromagnetic system release; during earth leakage protective; dropout iron core in leakage tripping device promotes the push rod in electromagnetic system by apical axis; make the snap close release in moving contact of breaker system, movable contact system disconnects.While there is short circuit current in circuit, the moving iron core of electromagnetic system can make push rod promote snap close release.Such structure has been avoided using and has been reversed push rod, has saved production and processing cost, and has more reasonably utilized the space in residual current circuit breaker housing, product is threaded off reliable.
Accompanying drawing explanation
The structural representation that accompanying drawing 1 is existing residual current circuit breaker.
Accompanying drawing 2 is the structural representation of the utility model embodiment.
Accompanying drawing 3 is the structural representation of accompanying drawing 2 middle shells 1.
The exploded perspective view that accompanying drawing 4 partly amplifies for earth leakage protective in accompanying drawing 2.
Accompanying drawing 5 is the structure enlarged diagram of push rod 33 in accompanying drawing 2.
Accompanying drawing 6 is the cross-sectional schematic of overload release 3 and leakage tripping device 4 in accompanying drawing 2.
In figure, 1, housing; 11, positioning boss; 12, erection column; 13, lead; 131, through hole; 2, movable contact system; 21, snap close; 22, tripping; 3, electromagnetic system release; 31, electromagnetic system bobbin; 32, electromagnetic system coil; 33, push rod; 331, storage tank; 34, the moving iron core of electromagnetic system; 35, gap; 36, electromagnetic system static iron core; 37, transmission tube; 38, electromagnetic system spring; 4, leakage tripping device; 41, electric leakage bobbin; 411, installing hole; 42, electric leakage coil; 43, apical axis; 44, dropout iron core; 45, static iron core; 46, back-moving spring; 47, radome; 5, wiring board; 6, operating mechanism; 7, zero-sequence transformer.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
By Fig. 2 in conjunction with Fig. 3, 4, 5, shown in 6, a kind of residual current circuit breaker, comprise housing 1 and operating mechanism 6, in described housing 1, be provided with movable contact system 2, electromagnetic system release 3, leakage tripping device 4, zero-sequence transformer 7 and wiring board 5, described movable contact system 2 be provided with snap close 21 and with the suitable tripping 22 of snap close 21, described operating mechanism is connected with movable contact system 2 by U-shaped bar, described zero-sequence transformer 7 is flexible coupling with electromagnetic system release 3, described leakage tripping device 4 is located on wiring board 5, described electromagnetic system release 3 comprises electromagnetic system bobbin 31 and is wrapped in the electromagnetic system coil 32 on electromagnetic system bobbin 31, in described electromagnetic system bobbin 31, be provided with push rod 33, the moving iron core 34 of electromagnetic system and electromagnetic system static iron core 36, described leakage tripping device 4 comprises electric leakage bobbin 41 and is wrapped in the electric leakage coil 42 on electric leakage bobbin 41, in described electric leakage bobbin 41, be arranged with apical axis 43, described apical axis 43 moves iron core 34 and coordinates with electromagnetic system bobbin 31 axial slips through the electromagnetic system in electromagnetic system bobbin 31, the end Joint of the top of described apical axis 43 and push rod 33, the second place that primary importance when described push rod 33 has installation and pushing tow snap close 21 are threaded off snap close 21.Specifically, between the moving iron core 34 of described apical axis 43 and electromagnetic system, be provided with gap 35.When short-circuit protection, push rod 33 can be promoted to make its axial slip, pushing tow snap close that snap close is threaded off by the moving iron core 34 of electromagnetic system electromagnetic system bobbin 31 is interior.Owing to being provided with gap between apical axis and the moving iron core of electromagnetic system, make apical axis 43 in the moving interior flexible motion of iron core 34 of electromagnetic system, product to be threaded off reliable.While there is expection residual operating current in circuit, the dropout iron core in leakage tripping device promotes apical axis, makes the snap close release in the moving contact system in circuit breaker, and realize movable contact system and disconnect fast, thus the earth leakage protective of realization.The outer transmission tube 37 that is arranged with of described push rod 33, the moving iron core 34 of one end of described transmission tube 37 and electromagnetic system is suitable, between the moving iron core 34 of described electromagnetic system and electromagnetic system static iron core 36, is provided with electromagnetic system spring 38.In circuit during short circuit current, in electromagnetic system release 3, the moving iron core 34 of electromagnetic system produces electromagnetic attraction with electromagnetic system static iron core 36, make the moving iron core 34 of electromagnetic system in electromagnetic system overcome 37 motions of reaction spring drive transmission tube, transmission tube 37 drives push rod 33 motions in electromagnetic system again, makes snap close 21 releases in movable contact system 2.The beneficial effects of the utility model are; the apical axis of leakage tripping device is directly connected with the push rod of electromagnetic system release; during earth leakage protective; dropout iron core in leakage tripping device promotes the push rod in electromagnetic system by apical axis; make the snap close release in moving contact of breaker system, movable contact system disconnects.While there is short circuit current in circuit, the moving iron core of electromagnetic system can make push rod promote snap close release.Such structure has been avoided using and has been reversed push rod, has saved production and processing cost, and has more reasonably utilized the space in residual current circuit breaker housing, product is threaded off reliable.
In described electric leakage bobbin 41, be provided with dropout iron core 44 and with the suitable static iron core 45 of dropout iron core 44, one end of described dropout iron core 44 and the end face of apical axis 43 are suitable, between described dropout iron core 44 and static iron core 45, are provided with back-moving spring 46.Such structure makes the apical axis can be reliably along its axial slip, and reliable thereby pushing tow push rod is threaded off product, back-moving spring can make apical axis reliable reset.
Described housing 1 is provided with positioning boss 11, and described positioning boss 11 is provided with erection column 12, and described erection column 12 is located in the installing hole 411 of electric leakage bobbin 41 through wiring board 5.Such structure can effectively be utilized the space in housing, is the installation vacating space of miscellaneous part.
The inwall of described housing 1 is provided with lead 13, and described lead 13 is provided with the through hole 131 passing for apical axis 43.Such structure makes the motion of apical axis reliable, avoids apical axis top partially.Certainly, in the utility model, through hole is that two groove laminatings by being located on housing form.
The outer radome 47 that is provided with of described electric leakage bobbin 41.Such structure decrease leakage field, increased electromagnetic attraction.
The end of described push rod 33 is provided with storage tank 331, and described apical axis 43 inserts in storage tank 331.Such structure makes apical axis press reliable to push rod top.
Every technical staff's notice: although the utility model describes according to above-mentioned embodiment; but invention thought of the present utility model is not limited in this utility model; the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.
Claims (9)
1. a residual current circuit breaker, comprise housing (1), in described housing (1), be provided with movable contact system (2), electromagnetic system release (3), leakage tripping device (4) and wiring board (5), described movable contact system (2) be provided with snap close (21) and with the suitable tripping (22) of snap close (21), described electromagnetic system release (3) comprises electromagnetic system bobbin (31) and is wrapped in the electromagnetic system coil (32) on electromagnetic system bobbin (31), in described electromagnetic system bobbin (31), be provided with push rod (33), electromagnetic system moves iron core (34) and electromagnetic system static iron core (36), it is characterized in that: described leakage tripping device (4) comprises electric leakage bobbin (41) and is wrapped in the electric leakage coil (42) on electric leakage bobbin (41), in described electric leakage bobbin (41), be arranged with apical axis (43), described apical axis (43) moves iron core (34) and coordinates with electromagnetic system bobbin (31) axial slip through the electromagnetic system in electromagnetic system bobbin (31), the end Joint of the top of described apical axis (43) and push rod (33), the second place that primary importance when described push rod (33) has installation and pushing tow snap close (21) are threaded off snap close (21).
2. a kind of residual current circuit breaker according to claim 1, it is characterized in that being provided with in described electric leakage bobbin (41) dropout iron core (44) and with the suitable static iron core (45) of dropout iron core (44), one end of described dropout iron core (44) and the end face of apical axis (43) are suitable.
3. a kind of residual current circuit breaker according to claim 2, is characterized in that being provided with back-moving spring (46) between described dropout iron core (44) and static iron core (45).
4. a kind of residual current circuit breaker according to claim 1, it is characterized in that described housing (1) is provided with positioning boss (11), described positioning boss (11) is provided with erection column (12), and described erection column (12) is located in the installing hole (411) of electric leakage bobbin (41) through wiring board (5).
5. a kind of residual current circuit breaker according to claim 1, is characterized in that the inwall of described housing (1) is provided with lead (13), and described lead (13) is provided with the through hole (131) passing for apical axis (43).
6. a kind of residual current circuit breaker according to claim 1, is characterized in that the outer radome (47) that is provided with of described electric leakage bobbin (41).
7. a kind of residual current circuit breaker according to claim 1, is characterized in that the end of described push rod (33) is provided with storage tank (331), and described apical axis (43) inserts in storage tank (331).
8. a kind of residual current circuit breaker according to claim 1, is characterized in that being provided with gap (35) between the moving iron core (34) of described apical axis (43) and electromagnetic system.
9. a kind of residual current circuit breaker according to claim 1, is characterized in that the outer transmission tube (37) that is arranged with of described push rod (33), and the moving iron core (34) of one end of described transmission tube (37) and electromagnetic system is suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320698529.6U CN203521345U (en) | 2013-11-07 | 2013-11-07 | Residual current circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320698529.6U CN203521345U (en) | 2013-11-07 | 2013-11-07 | Residual current circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521345U true CN203521345U (en) | 2014-04-02 |
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ID=50380235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320698529.6U Expired - Lifetime CN203521345U (en) | 2013-11-07 | 2013-11-07 | Residual current circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203521345U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465258A (en) * | 2014-12-02 | 2015-03-25 | 浙江天正电气股份有限公司 | Electric leakage alarm circuit beaker |
| CN107993897A (en) * | 2017-12-12 | 2018-05-04 | 上海电科电器科技有限公司 | Earth leakage circuit breaker |
-
2013
- 2013-11-07 CN CN201320698529.6U patent/CN203521345U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465258A (en) * | 2014-12-02 | 2015-03-25 | 浙江天正电气股份有限公司 | Electric leakage alarm circuit beaker |
| CN104465258B (en) * | 2014-12-02 | 2016-06-15 | 浙江天正电气股份有限公司 | A kind of leakage-current alarm chopper |
| CN107993897A (en) * | 2017-12-12 | 2018-05-04 | 上海电科电器科技有限公司 | Earth leakage circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yueqing East Street North Baixiang Town Industrial Zone 325603 Bai TA Wang Zhejiang province Wenzhou City No. 545 Patentee after: GARCIA ELECTRICAL APPLIANCE CO.,LTD. Address before: Yueqing East Street North Baixiang Town Industrial Zone 325603 Bai TA Wang Zhejiang province Wenzhou City No. 545 Patentee before: GACIA ELECTRICAL APPLIANCE Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
|
| CX01 | Expiry of patent term |