CN204516637U - Fixed contact - Google Patents
Fixed contact Download PDFInfo
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- CN204516637U CN204516637U CN201520223938.XU CN201520223938U CN204516637U CN 204516637 U CN204516637 U CN 204516637U CN 201520223938 U CN201520223938 U CN 201520223938U CN 204516637 U CN204516637 U CN 204516637U
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- fixed contact
- contact
- supporting part
- permanent magnet
- arc
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Abstract
The utility model relates to a kind of fixed contact, comprise integrated contact body and fixed contact, contact body comprises fixed contact supporting part for carrying fixed contact, for introducing the wire connecting portion of electric current and the kink for connecting fixed contact supporting part and wire connecting portion, fixed contact is arranged on the upper side of fixed contact supporting part, is provided with permanent magnet on the downside of the fixed contact supporting part of contact body.The bending part of fixed contact of the present utility model is U-shaped, when current overload becomes large, the repulsive force upwards lifted by moving contact can be produced moving contact is upwards lifted, just break before adhesion is melted in dynamic and static contact, improve the ultimate short-circuit breaking capacity of circuit breaker, and permanent magnet is set below fixed contact, magnetic quenching effect can be played when moving contact disjunction, the electric arc of production is blown in arc-extinguish chamber, improves arc quenching effect.
Description
Technical field
The utility model relates to a kind of fixed contact, especially a kind of fixed contact for moulded case circuit breaker.
Background technology
The moving contact of moulded case circuit breaker and fixed contact closed by excessive electric current time, moving contact does not have timely disjunction that the surface of moving contact and fixed contact can be made to melt adhesion, causes circuit breaker can not normally disjunction and losing efficacy, and has certain potential safety hazard.And the moving contact of circuit breaker and fixed contact disjunction time can produce electric arc, generally carry out arc extinguishing by the arc-extinguish chamber arranged in moving contact side, when moving contact is separated with fixed contact, electric arc can produce between moving contact and fixed contact, and the electric arc pulled open moves to the direction of arc quenching system (grid), finally cools in arc quenching system, extinguishes, but existing arc quenching system magnetic blow-out power is little, electric arc can not be quickly moved in arc-extinguish chamber, and arc quenching effect is poor, and arc erosion and the loss of contact are high.
Summary of the invention
For above-mentioned reasons, it is strong that the purpose of this utility model is to provide a kind of breaking capacity, has the fixed contact of arc extinguishing ability.
For achieving the above object, the utility model adopts a kind of fixed contact, comprise integrated contact body and fixed contact, contact body comprises fixed contact supporting part for carrying fixed contact, for introducing the wire connecting portion of electric current and the U-shaped kink for connecting fixed contact supporting part and wire connecting portion, fixed contact is arranged on the upper side of fixed contact supporting part, is provided with permanent magnet on the downside of the fixed contact supporting part of contact body.
The utility model is fixedly installed permanent magnetism installing rack in the downside of described fixed contact supporting part, and permanent magnet is arranged in permanent magnetism installing rack.
The installing rack of permanent magnetism described in the utility model comprises the epipleural be connected with fixed contact supporting part, the lower side panel carrying permanent magnet and connects the connecting plate of epipleural and lower side panel.
The bending part of the fixed contact that the beneficial effects of the utility model are is U-shaped, when current overload becomes large, the repulsive force upwards lifted by moving contact can be produced moving contact is upwards lifted, just break before adhesion is melted in dynamic and static contact, improve the ultimate short-circuit breaking capacity of circuit breaker, and permanent magnet is set below fixed contact, magnetic quenching effect can be played when moving contact disjunction, the electric arc of production is blown in arc-extinguish chamber, improves arc quenching effect.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model specific embodiment.
Fig. 2 is the end view of the utility model specific embodiment.
Embodiment
As Fig. 1, shown in Fig. 2, specific embodiment of the utility model is a kind of fixed contact, comprise integrated contact body 1, fixed contact 2, permanent magnetism installing rack 3, permanent magnet 4, contact body 1 comprises the fixed contact supporting part 11 for carrying fixed contact 2, 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, fixed contact 2 is arranged on the upper side of fixed contact supporting part 11, permanent magnetism installing rack 3 is fixedly installed on the downside of fixed contact supporting part 11, permanent magnetism installing rack 3 comprises the epipleural 31 be connected with the downside of fixed contact supporting part 11, the lower side panel 32 of carrying permanent magnet 4 and the connecting plate 33 of connection epipleural 31 and lower side panel 32, permanent magnet 4 is arranged between the epipleural 31 of permanent magnetism installing rack 3 and lower side panel 32.
Claims (3)
1. a fixed contact, comprise integrated contact body and fixed contact, contact body comprises fixed contact supporting part for carrying fixed contact, for introducing the wire connecting portion of electric current and the U-shaped kink for connecting fixed contact supporting part and wire connecting portion, fixed contact is arranged on the upper side of fixed contact supporting part, it is characterized in that: be provided with permanent magnet on the downside of the fixed contact supporting part of described contact body.
2. fixed contact according to claim 1, is characterized in that: the downside of described fixed contact supporting part is fixedly installed permanent magnetism installing rack, and permanent magnet is arranged in permanent magnetism installing rack.
3. fixed contact according to claim 2, is characterized in that: described permanent magnetism installing rack comprises the epipleural be connected with fixed contact supporting part, the lower side panel carrying permanent magnet and connects the connecting plate of epipleural and lower side panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520223938.XU CN204516637U (en) | 2015-04-10 | 2015-04-10 | Fixed contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520223938.XU CN204516637U (en) | 2015-04-10 | 2015-04-10 | Fixed contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204516637U true CN204516637U (en) | 2015-07-29 |
Family
ID=53714584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520223938.XU Active CN204516637U (en) | 2015-04-10 | 2015-04-10 | Fixed contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204516637U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261534A (en) * | 2015-11-06 | 2016-01-20 | 派森特电气有限公司 | Circuit breaker |
| CN105470067A (en) * | 2015-12-29 | 2016-04-06 | 浙江天正电气股份有限公司 | Breaker provided with arc extinguishing mechanism with magnetic blowing and air-blowing functions |
| CN114578216A (en) * | 2022-04-30 | 2022-06-03 | 南昌耀德精密五金有限公司 | Conducting device for chip test |
-
2015
- 2015-04-10 CN CN201520223938.XU patent/CN204516637U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261534A (en) * | 2015-11-06 | 2016-01-20 | 派森特电气有限公司 | Circuit breaker |
| CN105470067A (en) * | 2015-12-29 | 2016-04-06 | 浙江天正电气股份有限公司 | Breaker provided with arc extinguishing mechanism with magnetic blowing and air-blowing functions |
| CN114578216A (en) * | 2022-04-30 | 2022-06-03 | 南昌耀德精密五金有限公司 | Conducting device for chip test |
| CN114578216B (en) * | 2022-04-30 | 2022-07-15 | 南昌耀德精密五金有限公司 | Conducting device for chip test |
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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. |