CN201717215U - Arc extinguishing device of breaker - Google Patents
Arc extinguishing device of breaker Download PDFInfo
- Publication number
- CN201717215U CN201717215U CN2010201976827U CN201020197682U CN201717215U CN 201717215 U CN201717215 U CN 201717215U CN 2010201976827 U CN2010201976827 U CN 2010201976827U CN 201020197682 U CN201020197682 U CN 201020197682U CN 201717215 U CN201717215 U CN 201717215U
- Authority
- CN
- China
- Prior art keywords
- arc
- arc extinguishing
- grid pieces
- extinguishing grid
- grate
- 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
- 239000002184 metal Substances 0.000 claims abstract description 6
- 230000000171 quenching Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003068 static Effects 0.000 description 1
Images
Abstract
The utility model discloses an arc extinguishing device of a breaker, which comprises two side arc insulating plates and arc extinguishing grates. The arc extinguishing grates are distributed at intervals, and riveted on the two side arc insulating plates; the arc extinguishing device is characterized in that the edges in the front sections of the arc extinguishing grate adopt a double-U-shaped structure; and an arc striking plate made of rectangular sheet metal is arranged above the arc extinguishing grate at the top end. The arc extinguishing device has the advantages that as the arc striking plate made of rectangular sheet metal is arranged above the arc extinguishing grate at the top end, the attraction force to an arc when the breaker is in short circuit and disjuncted is increased, an arc can be quickly attracted into the arc extinguishing device to be extinguished, and simultaneously the actual result also shows that the double-U-shaped structure at the edge in the front section of the arc extinguishing grate is obviously superior to a U-shaped structure.
Description
Technical field
The utility model relates to low voltage electrical equipment, specifically is a kind of Arc Distinguishing Device for Circuit Breakers that uses in low-voltage circuit breaker.
Background technology
Arc Distinguishing Device for Circuit Breakers in the low-voltage circuit breaker generally is made up of housing and the arc extinguishing grid pieces that is installed in the housing, and the electric arc of generation is isolated and arc extinguishing when being used for dynamic and static contact contact.The profile of the arc extinguishing grid pieces front edge of prior art is generally U-shaped, the actual use, and its arc quenching effect is undesirable, thereby has influenced the breaking capacity and the electrical endurance of arc-control device.
Summary of the invention
The purpose of this utility model is the problem that exists at prior art, and the contour shape at arc-control device and arc extinguishing grid pieces leading portion edge is improved, and proposes the good Arc Distinguishing Device for Circuit Breakers of a kind of arc quenching effect.
The purpose of this utility model is achieved in that a kind of Arc Distinguishing Device for Circuit Breakers of the present utility model, it comprises both sides flash barrier and arc extinguishing grid pieces, arc extinguishing grid pieces is intervally arranged, arc extinguishing grid pieces is riveted on the flash barrier of both sides, it is characterized in that above-mentioned arc extinguishing grid pieces leading portion edge is the dual U-shaped structure, the run-on tab that above the arc extinguishing grid pieces on top, has the rectangle sheet metal to make.
Arc Distinguishing Device for Circuit Breakers of the present utility model, because the run-on tab that above the arc extinguishing grid pieces on top, has the rectangle sheet metal to make, when increasing the circuit breaker short circuit disjunction to the attraction of electric arc, arc energy is attracted in the arc-control device fast extinguishes, simultaneously actual effect shows that also arc extinguishing grid pieces leading portion edge is that the arc quenching effect of dual U-shaped structure obviously is better than the U-shaped structure.
Description of drawings
Fig. 1 is the side structure schematic diagram of Arc Distinguishing Device for Circuit Breakers of the present utility model.
Fig. 2 is the plan structure schematic diagram of Arc Distinguishing Device for Circuit Breakers of the present utility model.
Embodiment
The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, a kind of Arc Distinguishing Device for Circuit Breakers of the present utility model, it comprises both sides flash barrier 1 and arc extinguishing grid pieces 2, arc extinguishing grid pieces 2 is intervally arranged, arc extinguishing grid pieces 2 is riveted on the both sides flash barrier 1, it is characterized in that above-mentioned arc extinguishing grid pieces 2 leading portion edges are the dual U-shaped structure, the run-on tab 3 that above the arc extinguishing grid pieces 2 on top, has the rectangle sheet metal to make.
Claims (1)
1. Arc Distinguishing Device for Circuit Breakers, it comprises both sides flash barrier (1) and arc extinguishing grid pieces (2), arc extinguishing grid pieces (2) is intervally arranged, arc extinguishing grid pieces (2) is riveted on the both sides flash barrier (1), it is characterized in that above-mentioned arc extinguishing grid pieces (2) leading portion edge is the dual U-shaped structure, the run-on tab (3) that has the rectangle sheet metal to make in arc extinguishing grid pieces (2) top on top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201976827U CN201717215U (en) | 2010-05-21 | 2010-05-21 | Arc extinguishing device of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201976827U CN201717215U (en) | 2010-05-21 | 2010-05-21 | Arc extinguishing device of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201717215U true CN201717215U (en) | 2011-01-19 |
Family
ID=43463222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201976827U Expired - Fee Related CN201717215U (en) | 2010-05-21 | 2010-05-21 | Arc extinguishing device of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201717215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104396107A (en) * | 2012-04-06 | 2015-03-04 | 洛克威尔自动控制技术股份有限公司 | Methods and apparatus for mitigating arc flash incident energy in motor control devices |
-
2010
- 2010-05-21 CN CN2010201976827U patent/CN201717215U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104396107A (en) * | 2012-04-06 | 2015-03-04 | 洛克威尔自动控制技术股份有限公司 | Methods and apparatus for mitigating arc flash incident energy in motor control devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20120521 |