CN2627642Y - Contact arc extinction system of circuit breaker - Google Patents
Contact arc extinction system of circuit breaker Download PDFInfo
- Publication number
- CN2627642Y CN2627642Y CN 03232680 CN03232680U CN2627642Y CN 2627642 Y CN2627642 Y CN 2627642Y CN 03232680 CN03232680 CN 03232680 CN 03232680 U CN03232680 U CN 03232680U CN 2627642 Y CN2627642 Y CN 2627642Y
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- CN
- China
- Prior art keywords
- contact
- arc
- control device
- moving
- circuit breaker
- 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
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a contact arc extinction system of circuit breaker, which consists of a moving contact, a static contact and an arc extinction chamber. The static contact consists of a static contact point and an arc-ignition plate. The arc extinction chamber consists of an arc extinction chute. The moving contact consists of a moving contact plate, an arc barrier and a contact support. The moving contact plate is provided with a moving contact point, which is arranged on the lateral side of the moving contact close to the arc extinction chamber. The other side of the moving contact is moveably connected with a rotary shaft. The arc-ignition plate has a folded shape, with one end fixed on the lateral side of the static contact point close to the arc extinction chamber and with the other end extending into the arc extinction chamber and disposed in parallel with the arc chute. The arc-ignition plate not only starts the arc, but also extinct the arc in conjunction with the arc chute, thus ensuring good effect of the arc extinction effect of the whole system.
Description
(1) technical field
The utility model relates to a kind of contact arc quenching system of circuit breaker.
(2) background technology
General, the contact arc quenching system of circuit breaker comprises moving contact, fixed contact, arc control device, described fixed contact comprises fixed contact and quiet arc contact, described moving contact comprises moving contact and moving arc contact, as the patent No. is 96229800.X, patent name is a kind of utility model patent of contact arc quenching system of omnipotent breaker, a kind of contact system of circuit breaker is disclosed, moving contact and moving arc contact are welded on the same conducting strip, the arc leading angle of fixed contact vertically extend in the arc control device, and described quiet arc contact is arranged on the run-on tab, the chopped-off head arc-chute of described run-on tab and arc control device is in the same plane, has increased arc quenching effect.But also exist following shortcoming: 1, moving contact is provided with moving contact and moving arc contact, and fixed contact comprises fixed contact and quiet arc contact, structure more complicated; 2, described run-on tab and arc-chute are positioned on the same plane, can play certain striking effect, but separate between run-on tab and the arc-chute, and the effect of arc extinguishing is not fine.
(3) summary of the invention
In order to overcome the bad deficiency of contact arc quenching system arc quenching effect of circuit breaker in the prior art, the utility model provides a kind of contact arc quenching system of circuit breaker, has good arc extinguishing effect.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of contact arc quenching system of circuit breaker, comprise moving contact, fixed contact and arc control device, described fixed contact comprises fixed contact, the striking sheet, described arc control device comprise arc-chute, described moving contact comprises movable contact spring, flash barrier, contact is supported, described movable contact spring is provided with moving contact, moving contact is arranged on described moving contact near arc control device one side, the opposite side of moving contact and rotating shaft flexibly connect, described striking sheet is folding shape, one end is fixed on the side of described fixed contact near arc control device, and the other end extend into described arc control device and described arc extinguishing grid pieces is arranged in parallel.
Described moving contact is only established a moving contact, and described movable contact spring can be a multi-disc, and the contact sets on each movable contact spring is synthesized moving contact; Described fixed contact is only established a fixed contact.
Further, the front end of described movable contact spring is 1/4 fillet arc.
Further again, described moving contact is connected by flexible cord with moving busbar, and the link of described flexible cord and described moving contact is the lump shape, and the link of described flexible cord and moving busbar is the lump shape.
Described flash barrier is arranged on the side away from arc control device of movable contact spring.
Described arc control device are provided with insulation board, and insulation board is arranged on the offside of the run-on tab of arc control device, and described insulation board is closed with described contact support behind separating brake.
Further, described movable contact spring is provided with flat-bottom hole, is connected with described contact support by spring;
Described contact support is provided with clamping plate, and described contact support is connected by axle with described clamping plate, and described contact support is connected by axle with described movable contact spring.
The beneficial effect of the contact arc quenching system of circuit breaker described in the utility model mainly shows: 1, described striking sheet extend in the arc control device, be arranged in parallel with described arc extinguishing grid pieces, when arc extinguishing, the striking sheet has not only played the effect of striking, and can be consistent with the arc quenching plate in the arc control device, played the effect of arc extinguishing, made the arc quenching effect of whole contact system better; 2, moving contact comprises a moving contact, and fixed contact also only is provided with a fixed contact, and is relatively simple for structure; 3, described contact system arc quenching effect is good, and the segmented current ability is strong, the time decreased of arcing, the useful life that can improve whole circuit breaker so; 4, moving contact is 1/4 fillet arcs near an end of arc control device, can match with the interior angle groove of arc extinguishing grid pieces in the arc control device, also plays the effect of striking; 5, the connection between moving contact and the flexible cord is hard connection, with respect to former be flexible coupling for, can save the space, the connection between moving contact and the flexible cord is more reliable; 6, described flash barrier is arranged on the side of movable contact spring away from arc control device, with isolating away from arc control device one side of electric arc and described moving contact, can play the effect of protection moving contact; 7, the side at arc control device is provided with insulation board, and insulation board is closed with the contact support behind separating brake, and electric arc is guided in the described arc control device fully, and described insulation board can prevent that electric arc from spreading to both sides, the equipment of protection arc control device side; 8, described contact support is provided with clamping plate, and the contact support is connected by axle with clamping plate, and the contact support is connected by axle with described movable contact spring, can be connected with the power set of outside by the contact support, controls the opening and closing movement of described moving contact.
(4) description of drawings
Fig. 1 is the basic block diagram of the contact arc quenching system of circuit breaker described in the utility model.
(5) embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to the accompanying drawings 1, a kind of contact arc quenching system of circuit breaker, comprise moving contact 1, fixed contact 2 and arc control device 3, moving contact 1 comprises movable contact spring 7, flash barrier 8, contact support 9, moving contact 1 flexibly connects away from arc control device one end and rotating shaft 11, and movable contact spring 7 is 1/4 fillet arc near an end of arc control device.Movable contact spring 7 is provided with moving contact 10 near arc control device one side, movable contact spring 7 is four and combines, contact sets on each movable contact spring is synthesized a moving contact, flash barrier 8 is arranged on the side away from arc control device of movable contact spring 7, movable contact spring 7 is provided with flat-bottom hole 13, movable contact spring 7 connects the spring 14 of drawing and supports that with contact 9 are connected by flat-bottom hole, contact support 9 is provided with clamping plate 18, contact supports 9 to be connected by two axles with clamping plate 18, contact support 9 is connected by axle with movable contact spring 7, moving contact 1 is connected by flexible cord 16 with moving busbar 15, and flexible cord 16 is copper litz wires, and 16 two links of flexible cord all are single group lump shape.Fixed contact 2 comprises fixed contact 4, striking sheet 5,2 of fixed contacts are established a fixed contact 4, fixed contact 4 is connected an end of quiet busbar 17, striking sheet 5 is folding shape, one end of striking sheet 5 is fixed on the side of fixed contact 4 near arc control device, and the other end of striking sheet 5 extend into arc control device 3 and is arranged in parallel with arc-chute 6.Arc control device 3 comprise arc-chute 6, and arc control device 3 are provided with insulation board 12, and insulation board 12 is arranged on the offside of the run-on tab of arc control device 1, are closed with contact support 9 behind the separating brake of contact.
1 of moving contact is established a moving contact 10,2 of fixed contacts are established a fixed contact 4, make the relatively simple for structure of whole contact system, the front end of movable contact spring 7 is 1/4 fillet arcs, cooperatively interact with the end of arc-chute 6, can play certain striking effect, fixed contact 2 also comprises striking sheet 5, striking sheet 5 one ends extend into arc control device 3 and are arranged in parallel with arc extinguishing grid pieces 6, both can play the effect of striking, also can match and play the effect of blow-out, improve the arc extinguishing ability of the contact arc quenching system of whole circuit breaker with the arc-chute 6 in the arc control device 3, and then the useful life that can improve whole circuit breaker.
Claims (8)
1, a kind of contact arc quenching system of circuit breaker, comprise moving contact, fixed contact and arc control device, described fixed contact comprises fixed contact, the striking sheet, described arc control device comprise arc-chute, described moving contact comprises movable contact spring, flash barrier, contact is supported, described movable contact spring is provided with moving contact, moving contact is arranged on described moving contact near arc control device one side, the opposite side of moving contact and rotating shaft flexibly connect, it is characterized in that: described striking sheet is folding shape, one end is fixed on the side of described fixed contact near arc control device, and the other end extend into described arc control device and described arc extinguishing grid pieces is arranged in parallel.
2, the contact arc quenching system of circuit breaker as claimed in claim 1 is characterized in that described moving contact only establishes a moving contact, and described fixed contact is only established a fixed contact.
3, the contact arc quenching system of circuit breaker as claimed in claim 2 is characterized in that described movable contact spring is 1/4 fillet arc near an end of described arc control device.
4, the contact arc quenching system of circuit breaker as claimed in claim 1 is characterized in that described moving contact is connected by flexible cord with moving busbar, and the link of described flexible cord and described moving contact is the lump shape, and the link of described flexible cord and moving busbar is the lump shape.
5, the contact arc quenching system of circuit breaker as claimed in claim 1 is characterized in that described flash barrier is arranged on the side away from arc control device of movable contact spring.
6, the contact arc quenching system of circuit breaker as claimed in claim 1 is characterized in that described arc control device are provided with insulation board, and insulation board is arranged on the offside of the run-on tab of arc control device, and described insulation board is closed with described contact support behind separating brake.
7, the contact arc quenching system of circuit breaker as claimed in claim 3 is characterized in that described movable contact spring is provided with flat-bottom hole, is connected with described contact support by spring.
8, the contact arc quenching system of circuit breaker as claimed in claim 7 is characterized in that described contact support is provided with clamping plate, and described contact support is connected by axle with described clamping plate, and described contact support is connected by axle with described movable contact spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232680 CN2627642Y (en) | 2003-06-27 | 2003-06-27 | Contact arc extinction system of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232680 CN2627642Y (en) | 2003-06-27 | 2003-06-27 | Contact arc extinction system of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2627642Y true CN2627642Y (en) | 2004-07-21 |
Family
ID=34248683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03232680 Expired - Fee Related CN2627642Y (en) | 2003-06-27 | 2003-06-27 | Contact arc extinction system of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2627642Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349246C (en) * | 2005-09-07 | 2007-11-14 | 常州东方铁路器材有限公司 | Overcurrent circuit breaker |
| CN102074427A (en) * | 2011-01-13 | 2011-05-25 | 武汉中直电气股份有限公司 | Fast circuit breaker with longer service life |
| CN101689433B (en) * | 2007-06-29 | 2012-09-05 | 施耐德电器工业公司 | Electrical cut-off device having a complementary electrical function |
-
2003
- 2003-06-27 CN CN 03232680 patent/CN2627642Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349246C (en) * | 2005-09-07 | 2007-11-14 | 常州东方铁路器材有限公司 | Overcurrent circuit breaker |
| CN101689433B (en) * | 2007-06-29 | 2012-09-05 | 施耐德电器工业公司 | Electrical cut-off device having a complementary electrical function |
| CN102074427A (en) * | 2011-01-13 | 2011-05-25 | 武汉中直电气股份有限公司 | Fast circuit breaker with longer service life |
| CN102074427B (en) * | 2011-01-13 | 2013-04-10 | 武汉中直电气股份有限公司 | Fast circuit breaker with longer service life |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Zhejiang province Cixi City Zhangqi Town Industrial Development Zone Ningbo Qile Electric Industrial Co. Ltd., zip code: 315313 Patentee after: Ningbo Qile Electrical Appliances Industrial Co.,Ltd. Address before: Industrial Development Zone, Cixi Town, Zhejiang Province, China: 315313 Patentee before: Ningbo Qile Electrical Appliances Industrial Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20090227 Address after: Industrial Development Zone, Cixi Town, Zhejiang Province, China: 315313 Patentee after: Ningbo Qile Electrical Appliances Industrial Co.,Ltd. Address before: Industrial Development Zone, Cixi Town, Zhejiang Province, China: 315300 Patentee before: Ningbo Qile Electrical Appliances Industrial General Co. |
|
| ASS | Succession or assignment of patent right |
Owner name: NINGBO QILE ELECTRIC APPLIANCE INDUSTRY CO.,LTD. Free format text: FORMER OWNER: NINGBO QILE ELECTRIC APPLIANCE INDUSTRY GENERAL CORPORATION Effective date: 20090227 |
|
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO QILE ELECTRIC APPLIANCE INDUSTRY CO.,LTD. Free format text: NEW ADDRESS: ZHEJIANG PROVINCEINCE, CIXI CITY, ZHANGQI TOWN,INDUSTRY DEVELOPMENT AREA, NINGBO QILE ELECTRIC INDUSTRY CO., LTD., ZIP CODE:315313 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040721 Termination date: 20120627 |