CN201673856U - Airflow control device of breaker - Google Patents
Airflow control device of breaker Download PDFInfo
- Publication number
- CN201673856U CN201673856U CN2010201956382U CN201020195638U CN201673856U CN 201673856 U CN201673856 U CN 201673856U CN 2010201956382 U CN2010201956382 U CN 2010201956382U CN 201020195638 U CN201020195638 U CN 201020195638U CN 201673856 U CN201673856 U CN 201673856U
- Authority
- CN
- China
- Prior art keywords
- piston
- spacer pin
- breaker
- storage chamber
- valve plate
- 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 - Lifetime
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Abstract
The utility model discloses an airflow control device of a breaker, which is assembled in a moving contact system of an arc extinguishing chamber. An airflow hole is arranged in the end surface of a piston in the moving contact system of the arc extinguish chamber; a valve plate is arranged on the end surface of a piston through a spacer pin; the spacer pin penetrates through a connecting hole of the valve plate and is fixed on the end surface of the piston; the valve plate freely moves along the axial direction of the spacer pin; pressure in an air storage chamber is low when the breaker is closed, the valve plate is pushed by outside pressure to move to the air storage chamber and stops in the locking position of the spacer pin, then the control device is opened, and air flows into the air storage chamber in directions of the openings on a nozzle and on the piston; pressure in the air storage chamber is high when the breaker is separated, the valve plate is pressed to the position which is clung to the piston, airflow is prevented from flowing out from the opening on the piston, and all compressed gas is ensured to blow out from the nozzle; and the device has the effect of reducing the output work of an operating mechanism and improving the breaking ability of the breaker.
Description
Technical field
The utility model relates to the high-voltage switch gear field, particularly a kind of circuit breaker air flow controller, it controls the passage of air-flow turnover air storage chamber when circuit breaker carries out separating brake or closing operation, reduce closing operation power, plays the effect that reduces the operating mechanism output work, improves breaking capacity of breaker.
Background technology
The circuit breaker that uses is realized air-flow turnover air storage chamber by nozzle substantially at present, this mode has limited air reservoir return-air ability when breaker switching-on operation, increased the closing operation merit, in addition when circuit breaker closes branch or reclosing and cut-offs operation, because closing branch time weak point can not guarantee the abundant return-air of air reservoir, is unfavorable for the operation of cut-offfing subsequently.
The utility model content
The purpose of this utility model is to provide a kind of circuit breaker air flow controller, is used to improve the connecting-disconnecting function of circuit breaker, reduces the operating work of operating mechanism.
The purpose of this utility model is achieved by the following technical programs: a kind of circuit breaker air flow controller, be assemblied in the moving contact system of arc control device, it is characterized in that piston end face offers airflow hole in the arc control device moving contact system, valve block is arranged at piston end face by spacer pin, and valve block axially moves freely along spacer pin.
The further technical scheme of the utility model is that the connection holes that described spacer pin passes valve block is fixed in piston end face.
Preferably, the quantity of described spacer pin is 4.
During breaker switching-on operation, air flow controller is opened, and makes gas flow into air storage chamber by nozzle and piston both direction, has guaranteed the abundant return-air of air storage chamber, has reduced mechanism's operating work simultaneously; When circuit breaker carried out sub-switching operation, air flow controller was closed, and Compressed Gas is all blown out by nozzle, was used for the electric arc cooling, reached the purpose of blow-out.
By technique scheme as seen, air flow controller is installed in the arc control device, and the action of this device relies on the pressure differential of valve block both sides to control automatically, and valve block moves back and forth under the guide effect of spacer pin.The air storage chamber internal pressure is low when circuit breaker carries out closing operation, and valve block is subjected to outside pressure to promote to be parked in the spacer pin latched position to the air storage chamber lateral movement, and control device is opened, and gas is from flowing into air storage chamber by the perforate both direction on nozzle and the piston.Air storage chamber internal pressure height when circuit breaker carries out sub-switching operation, valve block is crushed on is close to position of piston, has stoped air-flow to flow out from the perforate on the piston, has guaranteed that Compressed Gas is all blown out by nozzle.The utility model has played the effect that reduces the operating mechanism output work and improve breaking capacity of breaker.
Description of drawings
Fig. 1 is the structural representation of embodiment; Fig. 2 is the piston end surface schematic diagram.
Among the figure: 1, air-flow; 2, loaded cylinder; 3, spacer pin; 4, valve block; 5, piston; 6, air-flow; 7, accumulation chamber; 8, conductor; 9, nozzle; 10, venthole; 11, screwed hole.
Embodiment: below in conjunction with the embodiment accompanying drawing to this novel being described further.
Referring to illustrated in figures 1 and 2, air flow controller is contained in the moving contact system of arc control device, have venthole 10 on the piston 5 end face circumferencial directions, the several spacer pins 3 of valve block 4 usefulness are fixed on the piston, valve block 4 can move freely along axis direction, the connection holes that one end of spacer pin 3 passes valve block is fixed on the screwed hole 11 of piston 5 end faces, spacer pin 3 other ends are designed to big header structure, defining valve block 4 can only move freely in limited space, guarantees the control of air flow controller realization air-flow turnover accumulation chamber 7.When circuit breaker carries out closing operation, loaded cylinder 2 drives conductor 8 and nozzle 9 moves to the left, air storage chamber 7 internal pressures are lower than external pressure, valve block 4 is subjected to outside pressure to promote to move to the left, be parked in the position of spacer pin 3 lockings, air flow controller is opened, and air-flow 1 and air-flow 6 enter air storage chamber 7 by the perforate both direction on nozzle 9 and the piston 5 respectively.When circuit breaker carries out sub-switching operation, loaded cylinder 2 drives conductor 8 and nozzle 9 moves to the right, air storage chamber 7 internal pressures are higher than external pressure, valve block 4 is crushed on the position of being close to piston 5 end faces, valve block 4 has been blocked the slotted hole on the piston 5, air flow controller is closed, and has stoped air-flow to flow out from the perforate on the piston 5, has guaranteed that Compressed Gas is all blown out by nozzle 9.
Claims (3)
1. circuit breaker air flow controller, be assemblied in the moving contact system of arc control device, it is characterized in that: piston end face offers airflow hole in the described arc control device moving contact system, and valve block is arranged at piston end face by spacer pin, and valve block axially moves freely along spacer pin.
2. circuit breaker air flow controller according to claim 1 is characterized in that: the connection holes that described spacer pin passes valve block is fixed in piston end face.
3. circuit breaker air flow controller according to claim 1 is characterized in that: the quantity of described spacer pin is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201956382U CN201673856U (en) | 2010-05-19 | 2010-05-19 | Airflow control device of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201956382U CN201673856U (en) | 2010-05-19 | 2010-05-19 | Airflow control device of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201673856U true CN201673856U (en) | 2010-12-15 |
Family
ID=43331264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201956382U Expired - Lifetime CN201673856U (en) | 2010-05-19 | 2010-05-19 | Airflow control device of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201673856U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977096A (en) * | 2016-06-24 | 2016-09-28 | 广州白云电器设备股份有限公司 | SF6 circuit breaker arc extinguish chamber |
| CN106024506A (en) * | 2016-06-24 | 2016-10-12 | 广州白云电器设备股份有限公司 | SF6 breaker pneumatic explosion chamber |
| CN109767950A (en) * | 2017-11-09 | 2019-05-17 | 河南平芝高压开关有限公司 | A kind of self-energy arc-extinguishing chamber and the breaker using the arc-chutes |
-
2010
- 2010-05-19 CN CN2010201956382U patent/CN201673856U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977096A (en) * | 2016-06-24 | 2016-09-28 | 广州白云电器设备股份有限公司 | SF6 circuit breaker arc extinguish chamber |
| CN106024506A (en) * | 2016-06-24 | 2016-10-12 | 广州白云电器设备股份有限公司 | SF6 breaker pneumatic explosion chamber |
| CN109767950A (en) * | 2017-11-09 | 2019-05-17 | 河南平芝高压开关有限公司 | A kind of self-energy arc-extinguishing chamber and the breaker using the arc-chutes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |