CN204011301U - A kind of plastic casing formula earth leakage circuit breaker - Google Patents
A kind of plastic casing formula earth leakage circuit breaker Download PDFInfo
- Publication number
- CN204011301U CN204011301U CN201420451848.1U CN201420451848U CN204011301U CN 204011301 U CN204011301 U CN 204011301U CN 201420451848 U CN201420451848 U CN 201420451848U CN 204011301 U CN204011301 U CN 204011301U
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- wiring board
- moving contact
- wire
- pedestal
- instrument transformer
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Abstract
A kind of plastic casing formula of the utility model earth leakage circuit breaker, it can avoid the magnetic disturbance that the electronic component on wiring board produces instrument transformer and the circuit breaker misoperation causing.It comprises pedestal, on this pedestal, be provided with thermal element live wire moving contact, zero line moving contact and binding post, live wire moving contact is electrically connected with corresponding thermal element, be connected to the wire on thermal element and be connected to wire on zero line moving contact all through after instrument transformer with corresponding binding post electrical connection, it is characterized in that: be provided with wiring board container cavity at the rear portion of described pedestal, described wiring board is arranged in this wiring board container cavity, on the base plate of pedestal, be provided with through hole, wire on instrument transformer is electrically connected with wiring board through after this through hole, being staggeredly located out of the position of described wiring board receiving compartment and instrument transformer.
Description
Technical field
The utility model belongs to the technical field of circuit breaker, specifically relates to a kind of plastic casing formula earth leakage circuit breaker.
Background technology
At present, the plastic casing formula earth leakage circuit breaker on market, comprises pedestal, operating mechanism, thermal element, instrument transformer, wiring board, hot terminal, zero line binding post, arc-extinguish chamber, live wire moving contact, zero line moving contact and fixed contact.Wherein, wiring board is arranged on the position that is adjacent to instrument transformer, and wiring board and instrument transformer are positioned at the same side of pedestal.There is following deficiency in plastic casing formula earth leakage circuit breaker:
1, on this wiring board, be welded with many electronic components, it inevitably produces certain magnetic field, because wiring board is arranged on the position of contiguous instrument transformer, makes this magnetic field can instrument transformer be produced and be disturbed, thereby causes circuit breaker misoperation.
Summary of the invention
The purpose of this utility model is to provide a kind of plastic casing formula earth leakage circuit breaker, and it can avoid the magnetic disturbance that the electronic component on wiring board produces instrument transformer and the circuit breaker misoperation causing.
The purpose of this utility model is achieved in that a kind of plastic casing formula earth leakage circuit breaker, comprise pedestal, on this pedestal, be provided with thermal element live wire moving contact, zero line moving contact and binding post, live wire moving contact is electrically connected with corresponding thermal element, be connected to the wire on thermal element and be connected to wire on zero line moving contact all through after instrument transformer with corresponding binding post electrical connection, it is characterized in that: be provided with wiring board container cavity at the rear portion of described pedestal, described wiring board is arranged in this wiring board container cavity, on the base plate of pedestal, be provided with through hole, wire on instrument transformer is electrically connected with wiring board through after this through hole, being staggeredly located out of the position of described wiring board receiving compartment and instrument transformer.
On the basis of such scheme and as the preferred version of such scheme: the wire being connected on binding post, thermal element, live wire moving contact and zero line moving contact all fixes by the mode of spot-welded.
The utility model compared to existing technology outstanding and useful technique effect is:
1, plastic casing formula earth leakage circuit breaker of the present utility model; by be provided with the wiring board container cavity being staggeredly located out of position and instrument transformer at the rear portion of pedestal; after making wiring board be arranged on pedestal; the position of wiring board and instrument transformer are relatively far apart; reduce the interference to instrument transformer of electromagnetism that wiring board produces, can effectively avoid the misoperation producing because of this magnetic disturbance of this circuit breaker.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is rear structure schematic diagram of the present utility model.
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-Fig. 2;
The plastic casing formula earth leakage circuit breaker that the present embodiment provides, comprises pedestal 1, is provided with thermal element 2, live wire moving contact 3, zero line moving contact 4 and binding post 5 on this pedestal.Wherein, thermal element 2 is bimetallic sheet structure.Live wire moving contact 3 is electrically connected with corresponding thermal element 2.The wire that is connected to the wire on thermal element 2 and be connected on zero line moving contact 4 is all electrically connected with corresponding binding post 5 through instrument transformer 6 is rear.Be provided with wiring board container cavity 8 at the rear portion of described pedestal 1, in the present embodiment, being staggeredly located out of the position of described wiring board receiving compartment 8 and instrument transformer 6, its two stagger after, make between wiring board 9 and instrument transformer 6 distant.Conventionally, wiring board receiving compartment, in moving contact and fixed contact position behind, adopts this design can make full use of the space on pedestal, so that parts distribution is more reasonable, the structure of plastic casing formula earth leakage circuit breaker is compacter.Described wiring board 9 is arranged in this wiring board container cavity 8, is provided with through hole 10 on the base plate of pedestal 1, and the wire on instrument transformer 6 passes this through hole 10 afterwards and wiring board 9 is electrically connected, and instrument transformer is used for detecting the vector of electric current.By this structure, reduce the interference to instrument transformer of electromagnetism that wiring board produces, can effectively avoid the misoperation producing because of interference of this circuit breaker.
In the present embodiment, the wire of downlink connection on binding post 5, thermal element 2, live wire moving contact 3 and zero line moving contact 4 all fixes by the mode of spot-welded.Specifically, taking the wire 7 on binding post 5 as example, wire 7 is fixed on binding post 5 by the mode of spot-welded, it adopts the structure of spot welding, make between wire and binding post, consolidation more between the wire harness of wire, effectively avoided the not temperature rise of firm generation of connection.Wire on thermal element, live wire moving contact 3 and zero line moving contact 4 is also to adopt the mode of spot welding to fix.
Above-described embodiment is only preferred embodiment of the present utility model, not limits according to this protection range of the present utility model, therefore: all equivalences of doing according to structure of the present utility model, shape, principle change, within all should being covered by protection range of the present utility model.
Claims (2)
1. a plastic casing formula earth leakage circuit breaker, comprise pedestal, on this pedestal, be provided with thermal element live wire moving contact, zero line moving contact and binding post, live wire moving contact is electrically connected with corresponding thermal element, be connected to the wire on thermal element and be connected to wire on zero line moving contact all through after instrument transformer with corresponding binding post electrical connection, it is characterized in that: be provided with wiring board container cavity at the rear portion of described pedestal, described wiring board is arranged in this wiring board container cavity, on the base plate of pedestal, be provided with through hole, wire on instrument transformer is electrically connected with wiring board through after this through hole, being staggeredly located out of the position of described wiring board receiving compartment and instrument transformer.
2. plastic casing formula earth leakage circuit breaker according to claim 1, is characterized in that: the wire being connected on binding post, thermal element, live wire moving contact and zero line moving contact all fixes by the mode of spot-welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451848.1U CN204011301U (en) | 2014-08-12 | 2014-08-12 | A kind of plastic casing formula earth leakage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451848.1U CN204011301U (en) | 2014-08-12 | 2014-08-12 | A kind of plastic casing formula earth leakage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204011301U true CN204011301U (en) | 2014-12-10 |
Family
ID=52051261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420451848.1U Active CN204011301U (en) | 2014-08-12 | 2014-08-12 | A kind of plastic casing formula earth leakage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204011301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155067A (en) * | 2018-02-02 | 2018-06-12 | 乐清市也为电气有限公司 | The leakage circuit breakers that a kind of firewire and zero curve can all disconnect |
-
2014
- 2014-08-12 CN CN201420451848.1U patent/CN204011301U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155067A (en) * | 2018-02-02 | 2018-06-12 | 乐清市也为电气有限公司 | The leakage circuit breakers that a kind of firewire and zero curve can all disconnect |
| CN108155067B (en) * | 2018-02-02 | 2024-01-26 | 温州奥来电器有限公司 | Electric leakage circuit breaker with disconnectable live wire and zero line |
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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: 325600, Zhejiang City, Liushi Province town of Yueqing back street Industrial Zone, East Ring Road Patentee after: MINPU ELECTRIC CO., LTD. Address before: 325600, Zhejiang City, Liushi Province town of Yueqing back street Industrial Zone, East Ring Road Patentee before: ZHEJIANG MINPU ELECTRIC CO., LTD. |