CN202259106U - Breather hole on arc-extinguishing chamber of small-sized low-voltage circuit breaker - Google Patents
Breather hole on arc-extinguishing chamber of small-sized low-voltage circuit breaker Download PDFInfo
- Publication number
- CN202259106U CN202259106U CN2011201385893U CN201120138589U CN202259106U CN 202259106 U CN202259106 U CN 202259106U CN 2011201385893 U CN2011201385893 U CN 2011201385893U CN 201120138589 U CN201120138589 U CN 201120138589U CN 202259106 U CN202259106 U CN 202259106U
- Authority
- CN
- China
- Prior art keywords
- arc
- circuit breaker
- extinguishing chamber
- breather hole
- small
- 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
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model provides a breather hole on an arc-extinguishing chamber of a small-sized low-voltage circuit breaker. The breather hole comprises grids with air outlets formed therein, and the width of the air outlets is 0.5mm-1.5mm smaller than that of the grids. The breather hole enables the heat dissipation performance of the arc-extinguishing chamber to be enhanced, and prevents an insulating material from damage due to heat generated by transient current and long-term service.
Description
Technical field
It is relevant with a kind of arc-extinguishing chamber of circuit breaker that the utility model relates to, and belongs to the air-vent of the good arc-extinguishing chamber of circuit breaker of a kind of permeability.
Background technology
The structure of the air-vent of existing small low-voltage arc-extinguishing chamber of circuit breaker is provided with grid, but because grid hole is too little, make arc control device heat dispersion a little less than, for a long time use causes the damage of insulating material easily.
It is necessary improving on the air-vent of known arc-extinguishing chamber of circuit breaker in sum.
Summary of the invention
The purpose of the utility model is to provide a kind of air-vent of small low-voltage arc-extinguishing chamber of circuit breaker, makes the heat dispersion of arc control device strengthen.
The utility model provides a kind of air-vent of small low-voltage arc-extinguishing chamber of circuit breaker, and this air-vent includes grid, and the grid set inside has the gas outlet, and the width of this gas outlet is than the little 0.5～1.5mm of width of grid.
The beneficial effect that the utility model reaches is: because the change of this gas outlet is big; Because the circuit breaker both sides all have air-vent to draw wind action by generation; Make the heat dispersion of arc control device strengthen; The insulating material damage that prevents the heat that immediate current produces and work long hours and cause also can be saved material simultaneously.
Description of drawings
Fig. 1 is the stereo appearance figure of the preferred embodiment of the utility model;
Fig. 2 is the enlarged diagram at Fig. 1 circle position.
Embodiment
Be described further below in conjunction with the structure of accompanying drawing the utility model.
See also illustrated in figures 1 and 2ly, the air-vent of arc-extinguishing chamber of circuit breaker is positioned at the lower end of circuit breaker, includes grid 1, gas outlet 2, and the width of gas outlet 2 is slightly less than the width 0.5～1.5mm of grid 1.
Claims (1)
1. the air-vent of a small low-voltage arc-extinguishing chamber of circuit breaker, air-vent includes grid, it is characterized in that: the grid set inside has the gas outlet, and the width of this gas outlet is than the little 0.5～1.5mm of width of grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201385893U CN202259106U (en) | 2011-05-04 | 2011-05-04 | Breather hole on arc-extinguishing chamber of small-sized low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201385893U CN202259106U (en) | 2011-05-04 | 2011-05-04 | Breather hole on arc-extinguishing chamber of small-sized low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259106U true CN202259106U (en) | 2012-05-30 |
Family
ID=46120306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201385893U Expired - Fee Related CN202259106U (en) | 2011-05-04 | 2011-05-04 | Breather hole on arc-extinguishing chamber of small-sized low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202259106U (en) |
-
2011
- 2011-05-04 CN CN2011201385893U patent/CN202259106U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204424192U (en) | Circuit breaker | |
| CN202259106U (en) | Breather hole on arc-extinguishing chamber of small-sized low-voltage circuit breaker | |
| CN203192670U (en) | High voltage isolation switch housing | |
| CN202274550U (en) | Purifier with humidifying function | |
| CN204303726U (en) | A kind of moving contact and comprise the circuit breaker of this moving contact | |
| CN203481157U (en) | Plug-in single-phase breaker | |
| CN203278207U (en) | Switching circuit with overheat switch-off function | |
| CN201754474U (en) | Distribution box of power equipment | |
| CN204517556U (en) | A kind ofly take into account motor casing that is fixing, outlet | |
| CN203596994U (en) | Metal casing for isolation amplifier | |
| CN204030354U (en) | A kind of high-low voltage switch cabinet ventilation cabinet panel | |
| CN203445475U (en) | Outdoor low-voltage distribution box with linkage ventilation structure | |
| CN202839483U (en) | Circuit breaker convenient to install | |
| CN204348512U (en) | A kind of novel high-pressure capacitive insulation end bowl | |
| CN202255717U (en) | Electric dynamometer provided with cooling device | |
| CN204257383U (en) | Anti-fraudulent use of electricity current transformer | |
| CN202307656U (en) | Three-position switch conductor structure | |
| CN203071366U (en) | Timing energy-saving plug | |
| CN203871674U (en) | 220kV power distribution unit outgoing line structure | |
| CN203192716U (en) | Secondary-loop plug-in of breaker | |
| CN203277147U (en) | Mold case circuit breaker and arc extinguishing device thereof | |
| CN203339049U (en) | Lower wire-outgoing base of vacuum circuit breaker | |
| CN203607359U (en) | Grid side-surface leading-out structure | |
| CN102856822A (en) | Distribution box with high heat radiation performance | |
| CN202633142U (en) | Isolating switch skeleton |
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 |
Granted publication date: 20120530 Termination date: 20150504 |
|
| EXPY | Termination of patent right or utility model |