CN205104458U - Breaker contact system - Google Patents
Breaker contact system Download PDFInfo
- Publication number
- CN205104458U CN205104458U CN201520894814.4U CN201520894814U CN205104458U CN 205104458 U CN205104458 U CN 205104458U CN 201520894814 U CN201520894814 U CN 201520894814U CN 205104458 U CN205104458 U CN 205104458U
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- China
- Prior art keywords
- movable contact
- contact
- moving
- movable
- spring
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Abstract
The utility model relates to a breaker contact system, including static contact and the moving contact relative with the static contact, the movable contact base that the moving contact includes, the movable contact spring, movable contact and movable contact head capsule, movable contact base installs in the movable contact head capsule, the end of movable contact spring articulates on movable contact base, the movable contact sets up on the movable contact spring top, the movable contact head capsule is at the junction top formation opening of movable contact spring with movable contact base, the terminal pin joint downside of movable contact spring is provided with the locating lever, the locating lever downside is provided with the location shell fragment, location shell fragment one end hinges in the movable contact head capsule, form the section of bending that is used for blocking the locating lever on the shell fragment of location. The moving contact can produce lorentz force through the heavy current time disconnected with moving contact bullet division compulsory circuit breaker branch, has improved the segmentation ability of circuit breaker.
Description
Technical field
The utility model relates to a kind of breaker contact system, especially a kind of contact system for moulded case circuit breaker.
Background technology
Limit breaking current is an important performance indexes of moulded case circuit breaker; at circuit breaker by during at the electric current larger than limit breaking current; moving contact and fixed contact can generate heat rapidly; the surface of moving contact and fixed contact will be made adhesion is melted when moving contact and fixed contact are not also able to do in time disjunction; cause circuit breaker can not normally disjunction and cause circuit or electrical appliance to damage; original protective effect can not be played, there is certain potential safety hazard.
Summary of the invention
In order to overcome above-mentioned defect, improve the ultimate breaking capacity of moulded case circuit breaker, the utility model provides one to have pressure breaking capacity, not easily melts weldering, the breaker contact system that ultimate breaking capacity is high.
For achieving the above object, the utility model adopts a kind of breaker contact system, comprise fixed contact and the moving contact relative with fixed contact, described fixed contact comprises fixed contact supporting part, for introducing the wire connecting portion of electric current and the U-shaped kink for connecting fixed contact supporting part and wire connecting portion, the upper side of fixed contact supporting part is provided with fixed contact, the movable contact block that described moving contact comprises, movable contact spring, moving contact and moving contact shell, movable contact block is arranged in moving contact shell, the end of movable contact spring is hinged on movable contact block, moving contact is arranged on movable contact spring top, moving contact shell forms opening above the junction of movable contact spring and movable contact block, backstay is provided with on the downside of the pin joint of movable contact spring end, Location resilient piece is provided with on the downside of backstay, Location resilient piece one end is hinged in moving contact shell, Location resilient piece is formed the bending section for blocking backstay.
The utility model is set to described movable contact spring further and is stuck between the biside plate of movable contact block, and movable contact block is provided with intermediate plate, and intermediate plate is clipped in outside the biside plate of movable contact block.
Permanent magnet is provided with on the downside of the fixed contact supporting part that the utility model is set to described fixed contact further.
The beneficial effects of the utility model are that the U-shaped bending part of fixed contact makes fixed contact and moving contact form U-shaped circuit when being connected; when by big current; current trend between moving contact and fixed contact is U-shaped; moving contact can be allowed to produce Lorentz force upwards according to left hand rule; be hinged on movable contact block due to movable contact spring and moving contact shell defines opening up; movable contact spring is upturned in stressed meeting; just be separated with fixed contact before operating mechanism action, the safety of protective circuit and electrical appliance.The bending section of Location resilient piece makes movable contact spring pop up easily with coordinating of backstay, moving contact can be touched with fixed contact be connected, and when movable contact spring is subject to excessive Lorentz force, backstay can eject from the bending section of Location resilient piece and allow movable contact spring be upturned.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model specific embodiment.
Fig. 2 is the cutaway view of the utility model specific embodiment.
Fig. 3 is the schematic diagram after moving contact of the present utility model removes moving contact shell.
Fig. 4 is the end view after moving contact of the present utility model removes moving contact shell.
Embodiment
As Figure 1-Figure 4, specific embodiment of the utility model is a kind of breaker contact system, comprise fixed contact 1 and the moving contact 2 relative with fixed contact 1, fixed contact 1 comprises fixed contact supporting part 11, for introducing the wire connecting portion 12 of electric current and the U-shaped kink 13 for connecting fixed contact supporting part 11 and wire connecting portion 12, the upper side of fixed contact supporting part 11 is provided with fixed contact 14, on the downside of fixed contact supporting part 11, is provided with multi-disc magnet 15.The movable contact block 21 that moving contact 2 comprises, movable contact spring 22, moving contact 23 and moving contact shell 24, movable contact block 21 is arranged in moving contact shell 24, the end of movable contact spring 22 is hinged on movable contact block 21, movable contact block 21 is connected with terminal block 25, movable contact spring 22 is stuck between the biside plate of movable contact block 21, movable contact block 21 is provided with intermediate plate 26, intermediate plate 26 is clipped in outside the biside plate of movable contact block 21, moving contact 23 is arranged on movable contact spring 22 top, moving contact shell 24 forms opening 241 above movable contact spring 22 with the junction of movable contact block 21, backstay 27 is provided with on the downside of the pin joint of movable contact spring 22 end, Location resilient piece 28 is provided with on the downside of backstay 27, Location resilient piece 28 one end is hinged in moving contact shell 24, Location resilient piece 28 is formed the bending section 281 for blocking backstay.
Claims (3)
1. a breaker contact system, comprise fixed contact and the moving contact relative with fixed contact, it is characterized in that: described fixed contact comprises fixed contact supporting part, for introducing the wire connecting portion of electric current and the U-shaped kink for connecting fixed contact supporting part and wire connecting portion, the upper side of fixed contact supporting part is provided with fixed contact, the movable contact block that described moving contact comprises, movable contact spring, moving contact and moving contact shell, movable contact block is arranged in moving contact shell, the end of movable contact spring is hinged on movable contact block, moving contact is arranged on movable contact spring top, moving contact shell forms opening above the junction of movable contact spring and movable contact block, backstay is provided with on the downside of the pin joint of movable contact spring end, Location resilient piece is provided with on the downside of backstay, Location resilient piece one end is hinged in moving contact shell, Location resilient piece is formed the bending section for blocking backstay.
2. breaker contact system according to claim 1, is characterized in that: described movable contact spring is stuck between the biside plate of movable contact block, and movable contact block is provided with intermediate plate, and intermediate plate is clipped in outside the biside plate of movable contact block.
3. breaker contact system according to claim 1 and 2, is characterized in that: be provided with permanent magnet on the downside of the fixed contact supporting part of described fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520894814.4U CN205104458U (en) | 2015-11-06 | 2015-11-06 | Breaker contact system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520894814.4U CN205104458U (en) | 2015-11-06 | 2015-11-06 | Breaker contact system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205104458U true CN205104458U (en) | 2016-03-23 |
Family
ID=55520219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520894814.4U Active CN205104458U (en) | 2015-11-06 | 2015-11-06 | Breaker contact system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205104458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799368A (en) * | 2017-11-17 | 2018-03-13 | 河南森源电气股份有限公司 | Breaker of plastic casing structure of contact terminal |
| CN111584320A (en) * | 2019-02-19 | 2020-08-25 | 俊郎电气有限公司 | Small-size earth leakage ground fault protection circuit breaker |
-
2015
- 2015-11-06 CN CN201520894814.4U patent/CN205104458U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799368A (en) * | 2017-11-17 | 2018-03-13 | 河南森源电气股份有限公司 | Breaker of plastic casing structure of contact terminal |
| CN107799368B (en) * | 2017-11-17 | 2020-01-10 | 河南森源电气股份有限公司 | Contact structure of plastic case circuit breaker |
| CN111584320A (en) * | 2019-02-19 | 2020-08-25 | 俊郎电气有限公司 | Small-size earth leakage ground fault protection 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 | ||
| CP03 | Change of name, title or address |
Address after: 325604 Liushi City, Yueqing province Xinguang Industrial Zone Patentee after: Haig Polytron Technologies Inc Address before: 325605 second industrial zone, seven Li port, Zhejiang, Yueqing, China Patentee before: PAISENT ELECTRIC CO., LTD. |