CN202721097U - Arc-extinguishing chamber structure of low-temperature circuit breaker - Google Patents
Arc-extinguishing chamber structure of low-temperature circuit breaker Download PDFInfo
- Publication number
- CN202721097U CN202721097U CN 201220385788 CN201220385788U CN202721097U CN 202721097 U CN202721097 U CN 202721097U CN 201220385788 CN201220385788 CN 201220385788 CN 201220385788 U CN201220385788 U CN 201220385788U CN 202721097 U CN202721097 U CN 202721097U
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- moving
- nozzle
- flange
- air cylinder
- extinguishing chamber
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- Expired - Fee Related
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Abstract
The utility model relates to an arc-extinguishing chamber structure of a low-temperature circuit breaker. The structure mainly comprises an arc extinguishing chamber porcelain bushing, a static contact assembly, a moving contact assembly, a nozzle and an air cylinder. A piston rod of the air cylinder is connected with a flange. The flange is connected with the moving contact assembly. A main moving contact of the moving contact assembly is installed on a circumference surface of the flange and is cooperated with the flange so as to form an air cylinder piston. A moving arc contact of the moving contact assembly is installed on a center of the flange. The main moving contact is connected with the nozzle. The structure is characterized in that the nozzle is located on a central section of the arc extinguishing chamber porcelain bushing in a on-position state of the circuit breaker; the nozzle is located on one side in an off-position state of the circuit breaker, wherein the side of the arc extinguishing chamber porcelain bushing is close to a moving connection terminal. The nozzle is located on one side in the arc extinguishing chamber porcelain bushing and the side is close to the moving connection terminal during the off-position state of the circuit breaker so that a blowing place of the nozzle is close to the moving connection terminal during an off-position process. Therefore, a sufficient buffer distance and a heat dissipation space are provided for sulfur hexafluoride gas, and insulation strength is ensured. A protruding outer cover is not needed to be installed on a static connection terminal so that manufacturing cost is reduced.
Description
Technical field
The utility model relates to a kind of low temperature breaker arc quenching chamber structure, particularly the low temperature breaker arc quenching chamber structure of a kind of compact conformation, low cost of manufacture.
Background technology
Sulfur hexafluoride breaker is to utilize sulfur hexafluoride gas to do the novel switched of dielectric and arc-extinguishing medium.Sulfur hexafluoride gas is colourless, tasteless, nontoxic, and non-flammable inert gas has very high dielectric strength and good arc extinction performance, and dielectric strength is considerably beyond traditional insulating gas.Therefore, it is used for electric power system, can improve reliability and the fail safe of electric power system.
In traditional sulfur hexafluoride breaker, the upper wiring board center drilling that is connected with static contact component, the arc control device outer cover of its outer connection bump.The effect of this arc control device outer cover is buffering, the heat-dissipating space of sulfur hexafluoride gas when improving separating brake, avoids gas to cause not recoil to affect the dielectric strength of spout because of the space and then causes and cut-off inefficacy.But also there is certain shortcoming in it: increased accordingly manufacturing cost.
Summary of the invention
The technical problems to be solved in the utility model provides the low temperature breaker arc quenching chamber structure of a kind of compact conformation, low cost of manufacture.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of low temperature breaker arc quenching chamber structure, mainly comprise interrupting porcelain insulator, static contact component, moving contact component, nozzle and air cylinder, static contact component and air cylinder are installed in respectively the quiet of interrupting porcelain insulator two ends, on the moving junction block, the piston rod adpting flange of air cylinder, connect moving contact component on the flange, the moving main contact of moving contact component is installed in to cooperate on the periphery of flange and with flange and consists of the air cylinder piston, the moving arcing contact of moving contact component is installed in the center of flange, connects nozzle on the moving main contact; Its innovative point is: described nozzle is positioned at the middle part of interrupting porcelain insulator under the breaker closing state, and nozzle is positioned at interrupting porcelain insulator near a side of moving junction block under the breaker open operation state.
The utility model has the advantage of: nozzle is positioned at interrupting porcelain insulator near a side of moving junction block under the breaker closing state, so that the close moving junction block of air blowing place of nozzle in the separating brake process, thereby give enough buffer distance and the heat-dissipating spaces of sulfur hexafluoride gas, guarantee dielectric strength.Need not to install additional at quiet junction block the outer cover of protrusion, reduced manufacturing cost.
Description of drawings
Fig. 1 is the utility model low temperature breaker arc quenching chamber structure schematic diagram.
Embodiment
As shown in Figure 1, mainly comprise interrupting porcelain insulator 1, static contact component, moving contact component, nozzle 10 and air cylinder 6.
Quiet junction block 2, moving junction block 3 are installed respectively in interrupting porcelain insulator 1 two ends, at interrupting porcelain insulator 1 interior static contact component and the moving contact component of arranging, static contact component is installed on the quiet junction block 2, it comprises static arc contact 4, quiet main contact 5, static arc contact 4 is installed in quiet junction block 2 inner centers, and quiet main contact 5 is installed on the quiet junction block 2 inner circumferencial directions.
Air cylinder 6 is installed on the moving junction block 3, piston rod 12 adpting flanges 7 of air cylinder 6, connect moving contact component on the flange 7, moving contact component comprises moving arcing contact 8 and moving main contact 9, moving arcing contact 8 is installed in flange 7 centers, and moving main contact 9 is installed in and cooperates formation air cylinder piston on the periphery of flange 7 and with flange 7.
Claims (1)
1. low temperature breaker arc quenching chamber structure, mainly comprise interrupting porcelain insulator, static contact component, moving contact component, nozzle and air cylinder, static contact component and air cylinder are installed in respectively on quiet, the moving junction block at interrupting porcelain insulator two ends, the piston rod adpting flange of air cylinder, connect moving contact component on the flange, the moving main contact of moving contact component is installed in to cooperate on the periphery of flange and with flange and consists of the air cylinder piston, the moving arcing contact of moving contact component is installed in the center of flange, connects nozzle on the moving main contact; It is characterized in that: described nozzle is positioned at the middle part of interrupting porcelain insulator under the breaker closing state, and nozzle is positioned at interrupting porcelain insulator near a side of moving junction block under the breaker open operation state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385788 CN202721097U (en) | 2012-08-06 | 2012-08-06 | Arc-extinguishing chamber structure of low-temperature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385788 CN202721097U (en) | 2012-08-06 | 2012-08-06 | Arc-extinguishing chamber structure of low-temperature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202721097U true CN202721097U (en) | 2013-02-06 |
Family
ID=47622909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220385788 Expired - Fee Related CN202721097U (en) | 2012-08-06 | 2012-08-06 | Arc-extinguishing chamber structure of low-temperature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202721097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091517A (en) * | 2017-12-23 | 2018-05-29 | 中国西电电气股份有限公司 | A kind of arc-chutes of high-voltage alternating-current filter group breaker |
-
2012
- 2012-08-06 CN CN 201220385788 patent/CN202721097U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091517A (en) * | 2017-12-23 | 2018-05-29 | 中国西电电气股份有限公司 | A kind of arc-chutes of high-voltage alternating-current filter group breaker |
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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 |
Granted publication date: 20130206 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |