CN205081080U - Static contact - Google Patents
Static contact Download PDFInfo
- Publication number
- CN205081080U CN205081080U CN201520894700.XU CN201520894700U CN205081080U CN 205081080 U CN205081080 U CN 205081080U CN 201520894700 U CN201520894700 U CN 201520894700U CN 205081080 U CN205081080 U CN 205081080U
- Authority
- CN
- China
- Prior art keywords
- contact
- magnet
- supporting part
- board
- arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a static contact, including contact board, wiring board, stationary contact, flexible circuit conductor, magnet, the contact board includes horizontal contact supporting part and connects the connecting portion at the vertical downwardly extending of contact supporting part one end, and the connecting portion lower extreme is connected with the flexible circuit conductor, and the other end and the wiring board one end of flexible circuit conductor are connected, and the stationary contact setting is above the supporting part that contacts, and the inboard of contact board is hugged closely and is connected with magnet frame, and the magnet setting is in magnet frame. The utility model discloses the return circuit that forms the U type is connected with the wiring board to contact board, flexible circuit conductor, and U type return circuit can produce the repulsion force of upwards lifting the moving contact and upwards lift the moving contact when the current overload grow, move, the stationary contact just divides the disconnection before melting the adhesion, has improved the limit short -circuit breaking capacity of circuit breaker, sets up the permanent magnet in the stationary contact below in addition, divides at the movable contact and can play magnetic blow -out arc extinction when disconnected, blow to the arc -extinguish chamber with the electric arc of production in, improved the arc extinguishing 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 contact plate, terminal block, fixed contact, flexible conductor, magnet, contact plate comprises horizontal contact supporting part and is connected to the connecting portion that supporting part one end, contact extends straight down, connecting portion lower end is connected with flexible conductor, and the other end of flexible conductor is connected with terminal block one end, and fixed contact is arranged on above the supporting part of contact, the inner side of contact plate is close to and is connected with magnet frame, and magnet is arranged in magnet frame.
The utility model is set to described contact plate forms multiple hollow hole further.
The utility model is set to described magnet further and is formed by stacking by multilayer magnetic sheet.
The contact plate of the fixed contact that the beneficial effects of the utility model are is " 7 " font, contact plate lower end is connected to form U-shaped loop by flexible conductor and terminal block, U-shaped loop is 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.And flexible conductor connect contact plate and terminal block easily adaptive, easy for installation.
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 contact plate 1, terminal block 2, fixed contact 3, flexible conductor 4, magnet 5, contact plate 1 comprises horizontal contact supporting part 11 and is connected to the connecting portion 12 that contact supporting part 11 one end extends straight down, connecting portion 12 lower end is connected with flexible conductor 4, the other end of flexible conductor 4 is connected with terminal block 2 one end, fixed contact 3 is arranged on above contact supporting part 11, the inner side of below and connecting portion 12 that contact supporting part 11 is close in the inner side of contact plate 1 is provided with the magnet frame 51 of frame-type, magnet 5 is arranged in magnet frame 51, contact plate 1 is formed multiple hollow hole 13, magnet 5 is formed by stacking by multilayer magnetic sheet.
Claims (3)
1. a fixed contact, it is characterized in that: described fixed contact comprises contact plate, terminal block, fixed contact, flexible conductor, magnet, contact plate comprises horizontal contact supporting part and is connected to the connecting portion that supporting part one end, contact extends straight down, connecting portion lower end is connected with flexible conductor, the other end of flexible conductor is connected with terminal block one end, fixed contact is arranged on above the supporting part of contact, and the inner side of contact plate is close to and is connected with magnet frame, and magnet is arranged in magnet frame.
2. fixed contact according to claim 1, is characterized in that: described contact plate forms multiple hollow hole.
3. fixed contact according to claim 1 and 2, is characterized in that: described magnet is formed by stacking by multilayer magnetic sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520894700.XU CN205081080U (en) | 2015-11-06 | 2015-11-06 | Static contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520894700.XU CN205081080U (en) | 2015-11-06 | 2015-11-06 | Static contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205081080U true CN205081080U (en) | 2016-03-09 |
Family
ID=55433467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520894700.XU Expired - Fee Related CN205081080U (en) | 2015-11-06 | 2015-11-06 | Static contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205081080U (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 |
| CN107808790A (en) * | 2017-11-17 | 2018-03-16 | 河南森源电气股份有限公司 | Breaker of plastic casing structure of contact terminal magnet assemblies |
-
2015
- 2015-11-06 CN CN201520894700.XU patent/CN205081080U/en not_active Expired - Fee Related
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 |
| CN107808790A (en) * | 2017-11-17 | 2018-03-16 | 河南森源电气股份有限公司 | Breaker of plastic casing structure of contact terminal magnet assemblies |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160309 Termination date: 20171106 |