CN202996745U - A novel arc extinction structure - Google Patents
A novel arc extinction structure Download PDFInfo
- Publication number
- CN202996745U CN202996745U CN 201220668985 CN201220668985U CN202996745U CN 202996745 U CN202996745 U CN 202996745U CN 201220668985 CN201220668985 CN 201220668985 CN 201220668985 U CN201220668985 U CN 201220668985U CN 202996745 U CN202996745 U CN 202996745U
- Authority
- CN
- China
- Prior art keywords
- contact
- fixed
- arc extinction
- guide cylinder
- contact module
- 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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- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a novel arc extinction structure comprising a fixed contact module and a moving contact module. The fixed contact module comprises a fixed main contact and a fixed arcing contact, which are arranged coaxially. The moving contact module comprises a nozzle and a moving arcing contact. A gas guide cylinder is disposed above the fixed arcing contact in the fixed main contact. The gas guide cylinder comprises a round tube and a fixed ring. The fixed ring is provided with a plurality of round holes. The lower end of the gas guide cylinder is provided with two yielding openings. The novel arc extinction structure has the advantages that: high pressure gas ejected out from the nozzle can be exhausted through the gas guide cylinder disposed above the fixed arcing contact during opening of a breaker; and, with the gas guide cylinder, the gas can be better concentrated, loss of gas strength is low, the objective of rapid arc extinction can be achieved, and operation work of a mechanism is reduced. The novel arc extinction structure has the advantages of simple shape, good arc extinction performance, reliable motion and long service lifetime.
Description
Technical field
The utility model relates to the breaker portion of switchgear, is specifically related to the arc control device of circuit breaker.
Background technology
The electric arc that arc control device produce when disconnecting in order to limiting circuit breaker also can play the effect of auxiliary extinction of arc sometimes.The basic reason that circuit breaker produces electric arc is to contain a large amount of free electronics in device for switching contact itself and contact medium on every side, when arcing contact disconnects, if there is enough large voltage between contact, and circuital current will encourage above-mentioned free electronics to form electric arc when also reaching your pupil's arc current.Electric arc not only has very large destruction to contact, and to make the time lengthening of open circuit, even more serious situation be to cause security incident because of electric arc.Therefore, extinguish arcs for the support equipment safe operation, all has positive meaning the useful life of prolongation contact fast.
The utility model content
The purpose of this utility model is to provide a kind of New arc compression structure, this arc extinguishing structure modern design, and arc extinction performance is good.
The utility model to achieve these goals, the technical solution of employing is:
A kind of New arc compression structure has fixed contact module and motive contact module, and the fixed contact module comprises coaxial quiet main contact and the static arc contact that is set together, and motive contact module comprises spout and moving arcing contact; Be provided with gas cylinder above the static arc contact of described quiet main contact inside.
Preferably, described gas cylinder is made of pipe and retainer ring, has a plurality of circular holes on retainer ring.
Preferably, the lower end of described gas cylinder has two mouths of stepping down.
The beneficial effects of the utility model:
This kind New arc compression structure is provided with gas cylinder, during breaker open operation above static arc contact, the gases at high pressure of spout ejection are discharged through gas cylinder, and the setting of gas cylinder makes the gas property gathered higher, the current rate loss is little, can play the purpose of quick extinguish arcs, has reduced the mechanism operation merit.This arc extinguishing structure moulding is simple, and arc extinction performance is good, reliable in action, long service life.
Description of drawings
Fig. 1 is the cutaway view of New arc compression structure.
Fig. 2 is the structural representation of gas cylinder.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated:
In conjunction with Fig. 1 and Fig. 2, a kind of New arc compression structure has fixed contact module and motive contact module, and the fixed contact module comprises the coaxial quiet main contact 1 that is set together and static arc contact 2, and motive contact module comprises spout 3 and moving arcing contact 4.Static arc contact 2 tops of described quiet main contact 1 inside are provided with gas cylinder 5.Described gas cylinder 5 is made of pipe 51 and retainer ring 52, has a plurality of circular holes 53 on retainer ring 52, and the lower end of gas cylinder 5 has two mouths 54 of stepping down.
This kind New arc compression structure is provided with gas cylinder, during breaker open operation above static arc contact, the gases at high pressure of spout ejection are discharged through gas cylinder, and the setting of gas cylinder makes the gas property gathered higher, the current rate loss is little, can play the purpose of quick extinguish arcs, has reduced the mechanism operation merit.This arc extinguishing structure moulding is simple, and arc extinction performance is good, reliable in action, long service life.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection range of the present utility model.
Claims (3)
1. a New arc compression structure, have fixed contact module and motive contact module, and the fixed contact module comprises coaxial quiet main contact and the static arc contact that is set together, and motive contact module comprises spout and moving arcing contact; It is characterized in that, the static arc contact top of described quiet main contact inside is provided with gas cylinder.
2. a kind of New arc compression structure according to claim 1, is characterized in that, described gas cylinder is made of pipe and retainer ring, has a plurality of circular holes on retainer ring.
3. a kind of New arc compression structure according to claim 2, is characterized in that, the lower end of described gas cylinder has two mouths of stepping down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668985 CN202996745U (en) | 2012-12-07 | 2012-12-07 | A novel arc extinction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668985 CN202996745U (en) | 2012-12-07 | 2012-12-07 | A novel arc extinction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202996745U true CN202996745U (en) | 2013-06-12 |
Family
ID=48567887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220668985 Expired - Fee Related CN202996745U (en) | 2012-12-07 | 2012-12-07 | A novel arc extinction structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202996745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489694A (en) * | 2013-10-10 | 2014-01-01 | 益和电气集团股份有限公司 | GIS (Gas Insulated Switchgear) novel arc extinguishing structure |
-
2012
- 2012-12-07 CN CN 201220668985 patent/CN202996745U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489694A (en) * | 2013-10-10 | 2014-01-01 | 益和电气集团股份有限公司 | GIS (Gas Insulated Switchgear) novel arc extinguishing structure |
| CN103489694B (en) * | 2013-10-10 | 2015-08-19 | 益和电气集团股份有限公司 | A kind of GIS New arc compression structure |
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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: 20130612 Termination date: 20161207 |