CN202487498U - Bidirectional magnetic field arc extinction device - Google Patents
Bidirectional magnetic field arc extinction device Download PDFInfo
- Publication number
- CN202487498U CN202487498U CN2012201100728U CN201220110072U CN202487498U CN 202487498 U CN202487498 U CN 202487498U CN 2012201100728 U CN2012201100728 U CN 2012201100728U CN 201220110072 U CN201220110072 U CN 201220110072U CN 202487498 U CN202487498 U CN 202487498U
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- CN
- China
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- contact
- fixed contact
- fixed
- moving
- magnetic field
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- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Provided is a bidirectional magnetic field arc extinction device. The bidirectional magnetic field arc extinction device solves the problems that an existing magnetic latching relay has poor breaking capability and a moving contact head and a fixed contact piece can be burned by an electrical arc. The bidirectional magnetic field arc extinction device is characterized in that fixed contact pieces (3) are in 'L' shape, the number of the fixed contact pieces (3) is two, and the fixed contact pieces (3) are arranged on two sides of a moving contact piece (5) in symmetrical mode. The fixed contact heads (4) are fixed on one side of the fixed contact pieces (3). Perpetual strong magnets (7) are respectively fixed on the outer sides of the moving contact pieces (5) and the fixed contact head (4). Each south (S) pole of the perpetual strong magnets (7) corresponds to the outer side of an open distance between each moving contact head (6) and each fixed contact head (4). The number of the perpetual strong magnets (7) is two and the perpetual strong magnets (7) are distributed in symmetrical mode. The perpetual strong magnets (7) are arranged on the periphery of a fixed piece assembly and a moving piece assembly, and therefore the bidirectional magnetic field arc extinction device improves breaking capability of the relay, avoids retention of the electrical arcs on the moving contact head and the fixed contact heads and damage to a moving contact point and a fixed contact point, and prolongs service life.
Description
Technical field
The utility model relates to a kind of appliance controling element, is specifically related to a kind of bidirectional magnetic field arc-extinction device.
Background technology
Magnetic latching relay is a kind of new type of relay that grew up in recent years, also is a kind of automatic switch.The same with other electromagnetic relays, circuit is played automatic connection and cutting action.Existing magnetic latching relay mainly is made up of still assembly, moving plate assembly and magnetic force systems, and the still assembly can produce electric arc with the moving plate assembly in the moment of separating, and the one, influence the breaking capacity of still assembly and moving plate assembly, breaking capacity is poor; The 2nd, electric arc is detained between moving contact and fixed contact for a long time, can burn moving contact and fixed contact, reduces useful life.
The utility model content
In order to solve the problem that existing magnetic latching relay breaking capacity difference and electric arc can burn moving contact and fixed contact; The utility model provides a kind of bidirectional magnetic field arc-extinction device; This bidirectional magnetic field arc-extinction device still assembly and moving plate assembly periphery are provided with permanent kicker magnet, have improved the breaking capacity of relay, have avoided electric arc on moving contact and fixed contact, to be detained; Can not damage moving contact and fixed contact, improve useful life.
The technical scheme of the utility model is: a kind of bidirectional magnetic field arc-extinction device comprises still assembly and moving plate assembly; The still assembly is made up of static contact and fixed contact, and the moving plate assembly is made up of movable contact spring and moving contact, and moving contact is corresponding with fixed contact; Static contact is " L " type; Static contact is two and is symmetrically distributed in the two ends of movable contact spring, and fixed contact is fixed on one side of static contact, and the outside of movable contact spring and fixed contact is fixed with permanent kicker magnet; The outside that extremely corresponding moving contact of the S of permanent kicker magnet and fixed contact are opened distance, permanent kicker magnet are two and are symmetrically distributed.
Described movable contact spring links to each other with pull bar, and pull bar is provided with spring, and spring has makes moving contact rely on the elasticity trend of fixed contact.
The utlity model has following beneficial effect: owing to take such scheme, permanent kicker magnet forms magnetic field at moving contact and fixed contact periphery, and the electric arc that when moving contact and fixed contact disconnection, produces is drawn back by magnetic field; Electric arc moves to permanent kicker magnet direction; Effectively disjunction the electric current between moving contact and the fixed contact, improved the breaking capacity of relay, avoided electric arc on moving contact and fixed contact, to be detained; Can not damage moving contact and fixed contact, improve and make the life-span.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
1-still assembly among the figure, 2-moving plate assembly, 3-static contact, 4-fixed contact, 5-movable contact spring, 6-moving contact, the permanent kicker magnet of 7-, 8-pull bar, 9-spring.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
By shown in Figure 1, a kind of bidirectional magnetic field arc-extinction device comprises still assembly 1 and moving plate assembly 2, and still assembly 1 is made up of static contact 3 and fixed contact 4; Moving plate assembly 2 is made up of movable contact spring 5 and moving contact 6; Moving contact 6 is corresponding with fixed contact 4, and static contact 3 is " L " type, and static contact 3 is two and is symmetrically distributed in the two ends of movable contact spring 5; Fixed contact 4 is fixed on one side of static contact 3; Movable contact spring 5 is fixed with permanent kicker magnet 7 with the outside of fixed contact 4, the outside that extremely corresponding moving contact 6 of the S of permanent kicker magnet 7 and fixed contact 4 are opened distance, and permanent kicker magnet 7 is two and is symmetrically distributed.Owing to take technique scheme, permanent kicker magnet 7 forms magnetic field at moving contact 6 and fixed contact 4 peripheries, and the electric arc that when moving contact 6 breaks off with fixed contact 4, produces is drawn back by magnetic field; Electric arc moves to permanent kicker magnet 7 directions; Effectively disjunction the electric current between moving contact 6 and the fixed contact 4, improved the breaking capacity of relay, avoided electric arc on moving contact 6 and fixed contact 4, to be detained; Can not damage moving contact 6 and fixed contact 4, improve and make the life-span.
Described movable contact spring 5 links to each other with pull bar 8, and pull bar 8 is provided with spring 9, and spring 9 has makes moving contact 6 rely on the elasticity trend of fixed contact 4.When moving contact 6 and fixed contact 4 closures, spring 9 is compressed under the effect of pull bar 8, and it is tightr that the resilient force of spring 9 makes moving contact 6 contact with fixed contact 4 on moving contact 6, improved electric conductivity.
Claims (2)
1. a bidirectional magnetic field arc-extinction device comprises still assembly (1) and moving plate assembly (2), and still assembly (1) is made up of static contact (3) and fixed contact (4); Moving plate assembly (2) is made up of movable contact spring (5) and moving contact (6); Moving contact (6) is corresponding with fixed contact (4), it is characterized in that: static contact (3) is " L " type, and static contact (3) is two and is symmetrically distributed in the two ends of movable contact spring (5); Fixed contact (4) is fixed on one side of static contact (3); Movable contact spring (5) is fixed with permanent kicker magnet (7) with the outside of fixed contact (4), the outside that extremely corresponding moving contact of the S of permanent kicker magnet (7) (6) and fixed contact (4) are opened distance, and permanent kicker magnet (7) is two and is symmetrically distributed.
2. bidirectional magnetic field arc-extinction device according to claim 1 is characterized in that: movable contact spring (5) links to each other with pull bar (8), and pull bar (8) is provided with spring (9), and spring (9) has makes moving contact (6) rely on the elasticity trend of fixed contact (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201100728U CN202487498U (en) | 2012-03-21 | 2012-03-21 | Bidirectional magnetic field arc extinction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201100728U CN202487498U (en) | 2012-03-21 | 2012-03-21 | Bidirectional magnetic field arc extinction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202487498U true CN202487498U (en) | 2012-10-10 |
Family
ID=46961902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201100728U Expired - Fee Related CN202487498U (en) | 2012-03-21 | 2012-03-21 | Bidirectional magnetic field arc extinction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202487498U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064416A (en) * | 2013-03-21 | 2014-09-24 | 株式会社日立产机系统 | Circuit breaker |
| CN104275331A (en) * | 2013-07-08 | 2015-01-14 | Ls产电株式会社 | Cleaning device for contamination of contact of electromagnetic contactor |
| CN105140065A (en) * | 2014-06-06 | 2015-12-09 | 三菱电机株式会社 | Switch device |
| CN105321779A (en) * | 2014-07-11 | 2016-02-10 | Ls产电株式会社 | Relay |
-
2012
- 2012-03-21 CN CN2012201100728U patent/CN202487498U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064416A (en) * | 2013-03-21 | 2014-09-24 | 株式会社日立产机系统 | Circuit breaker |
| CN104064416B (en) * | 2013-03-21 | 2017-01-04 | 株式会社日立产机系统 | Circuit-breaker |
| CN104275331A (en) * | 2013-07-08 | 2015-01-14 | Ls产电株式会社 | Cleaning device for contamination of contact of electromagnetic contactor |
| CN105140065A (en) * | 2014-06-06 | 2015-12-09 | 三菱电机株式会社 | Switch device |
| CN105140065B (en) * | 2014-06-06 | 2017-08-08 | 三菱电机株式会社 | Opening and closing device |
| CN105321779A (en) * | 2014-07-11 | 2016-02-10 | Ls产电株式会社 | Relay |
| US9691577B2 (en) | 2014-07-11 | 2017-06-27 | Lsis Co., Ltd. | Relay |
| CN105321779B (en) * | 2014-07-11 | 2018-06-01 | Ls产电株式会社 | Relay |
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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: 20121010 Termination date: 20170321 |