CN103000445A - Elastic pressure relief system for reducing breaker operation work - Google Patents
Elastic pressure relief system for reducing breaker operation work Download PDFInfo
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- CN103000445A CN103000445A CN2012105260951A CN201210526095A CN103000445A CN 103000445 A CN103000445 A CN 103000445A CN 2012105260951 A CN2012105260951 A CN 2012105260951A CN 201210526095 A CN201210526095 A CN 201210526095A CN 103000445 A CN103000445 A CN 103000445A
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- flange
- cylinder
- arcing contact
- spout
- moving arcing
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Abstract
The invention discloses an elastic pressure relief system for reducing breaker operation work. The elastic pressure relief system comprises a nozzle, a movable arc contact, a cylinder, a first flange, a second flange, a pull rod and a cylinder seat. The lower portion of the nozzle is fixed on the upper portion of the inner side of the cylinder, the upper portion of the nozzle extends out of the inner side of the cylinder, the upper end of the movable arc contact extends into the nozzle, an interval is reserved between the movable arc contact and the nozzle, and the lower end of the movable arc contact is connected with an inner side wall of the cylinder through the first flange. The lower portion of the cylinder is sleeved on the cylinder seat, an upper end cover of the cylinder seat is provided with the second flange, and the pull rod penetrates through the second flange to be fixedly connected with the first flange and drives the first flange to drive the cylinder to move. The first flange, the cylinder and the second flange are enclosed to form an air pressing chamber, and a pressure reducing valve and an air returning valve are arranged on the second flange. The pressure relief system is simple in structure, can effectively reduce the breaker operation work and does not influence arc quenching effect.
Description
Technical field
The present invention relates to the breaker portion of switchgear, be specifically related to the release structure of moving contact of breaker part.
Background technology
Circuit breaker air pressing type arc extinguishing is that the gas in the pressured contractive pressure air chamber is finished the extinguishing of electric arc to produce air-flow, and existing arc-extinguishing chamber of circuit breaker comprises fixed contact module, motive contact module, air cylinder and piston, forms plenum chamber between this piston and air cylinder.This motive contact module links together with air cylinder and drives the relative piston activity of motive contact module by air cylinder, to change the plenum chamber volume.During sub-switching operation, the indoor gas of calming the anger is compressed, and arc burning causes gas expansion, so that the gas pressure in the plenum chamber rises.When the pressure of the indoor gas of calming the anger was elevated to an optimum value, extinguish arcs can reach optimum efficiency, as long as keep this pressure just can obtain optimum efficiency in the process of extinguish arcs.Yet, indoor gas is constantly increased by the energy of constantly compression arc burning along with calming the anger, gas pressure in the plenum chamber continues rising and has just become inevitable, when the pressure of air cylinder reaches very high, will produce very strong cylinder counter-force and hinder the separating brake motion of circuit breaker, even opening velocity be reduced to zero.
For overcoming this cylinder counter-force, just need large, the baroque operating mechanism of adapted operating work, therefore, the inventor envisions a kind of elasticity pressure relieving system that can effectively reduce the breaker operator merit of design.
Summary of the invention
The object of the present invention is to provide a kind of elasticity pressure relieving system that reduces the breaker operator merit, this pressure relieving system is simple in structure, can effectively reduce the breaker operator merit, and does not affect arc blowout effect.
The present invention to achieve these goals, the technical solution of employing is:
Reduce the elasticity pressure relieving system of breaker operator merit, comprise spout, moving arcing contact, cylinder, the first flange, the second flange, pull bar, reach cylinder block; Described spout bottom is fixed on cylinder inside top, and spout top is stretched out by cylinder inside, and described moving arcing contact upper end is stretched in the spout, and gapped between moving arcing contact and the spout, and the moving arcing contact lower end is connected with the cylinder inside wall by the first flange; Described cylinder bottom is enclosed within on the cylinder block, and the second flange is stamped in the cylinder block upper end, and pull bar passes the second flange and is fixedly connected with the first flange, and pull bar drives the first flange driving cylinder and moves; Described the first flange, cylinder, and the second flange surround plenum chamber, be provided with pressure-reducing valve and return-air valve on the second flange.
Preferably, the lower end of described spout, moving arcing contact, cylinder, and the first flange surround the thermal expansion chamber, be provided with on the first flange by the unidirectional valve of downside to the upside conducting.
Preferably, the top of described moving arcing contact is provided with the moving arcing contact seat.
Beneficial effect of the present invention:
When circuit breaker disconnected, pull bar drove the first flange driving cylinder and moves down.If drop-out current is larger, the arc energy between arcing contact is large, and arc district thermal current injects the thermal expansion chamber, carries out heat exchange in that thermal expansion is indoor, forms low temperature high pressure gas, and the thermal expansion chamber pressure is greater than plenum chamber pressure, closed check valve.When current over-zero, the gases at high pressure blowback of thermal expansion chamber is to fracture chien shih arc extinction.In the separating brake process, compressed when the air pressure in the plenum chamber begins, when reaching certain atmospheric pressure value, pressure-reducing valve is opened on the second flange, on one side plenum chamber calm the anger, Yi Bian exit through pressure-reducing valve, whole mechanism needn't overcome the opposite force of plenum chamber, greatly reduces operating work.If drop-out current is less, because arc energy is little, the pressure of the indoor generation of thermal expansion is little, pressure in the plenum chamber is higher than the thermal expansion room pressure, one-way valve opens, blowed to fracture by compressed gas in the plenum chamber, when current over-zero, these gases with certain pressure blow to fracture makes arc extinction.
Description of drawings
Fig. 1 is the structural representation that reduces the elasticity pressure relieving system of breaker operator merit.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1, reduce the elasticity pressure relieving system of breaker operator merit, comprise spout 1, moving arcing contact 2, cylinder 3, the first flange 4, the second flange 5, pull bar 6, reach cylinder block 7.Described spout 1 bottom is fixed on cylinder 3 inside upper part, and spout 1 top is stretched out by cylinder 3 inboards, and described moving arcing contact 2 upper ends are stretched in the spout 1, and gapped between moving arcing contact 2 and the spout 1, and moving arcing contact 2 lower ends are connected with cylinder 3 madial walls by the first flange 4.Described cylinder 3 bottoms are enclosed within on the cylinder block 7, and the second flange 5 is stamped in cylinder block 7 upper ends, and pull bar 6 passes the second flange 5 and is fixedly connected with the first flange 4, and pull bar 6 drives the first flange 4 driving cylinders 3 and moves.Described the first flange 4, cylinder 3, and the second flange 5 surround on plenum chamber 8, the second flanges 5 and be provided with pressure-reducing valve 9 and return-air valve 10.
The lower end of described spout 1, moving arcing contact 2, cylinder 3, and the first flange 4 surround on 11, the first flanges 4 of thermal expansion chamber and be provided with by the unidirectional valve 12 of downside to the upside conducting, the top of moving arcing contact 2 is provided with moving arcing contact seat 13.
When circuit breaker disconnected, pull bar drove the first flange driving cylinder and moves down.If drop-out current is larger, the arc energy between arcing contact is large, and arc district thermal current injects the thermal expansion chamber, carries out heat exchange in that thermal expansion is indoor, forms low temperature high pressure gas, and the thermal expansion chamber pressure is greater than plenum chamber pressure, closed check valve.When current over-zero, the gases at high pressure blowback of thermal expansion chamber is to fracture chien shih arc extinction.In the separating brake process, compressed when the air pressure in the plenum chamber begins, when reaching certain atmospheric pressure value, pressure-reducing valve is opened on the second flange, on one side plenum chamber calm the anger, Yi Bian exit through pressure-reducing valve, whole mechanism needn't overcome the opposite force of plenum chamber, greatly reduces operating work.If drop-out current is less, because arc energy is little, the pressure of the indoor generation of thermal expansion is little, pressure in the plenum chamber is higher than the thermal expansion room pressure, one-way valve opens, blowed to fracture by compressed gas in the plenum chamber, when current over-zero, these gases with certain pressure blow to fracture makes arc extinction.
Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention 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 invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (3)
1. reduce the elasticity pressure relieving system of breaker operator merit, it is characterized in that, comprise spout, moving arcing contact, cylinder, the first flange, the second flange, pull bar, reach cylinder block; Described spout bottom is fixed on cylinder inside top, and spout top is stretched out by cylinder inside, and described moving arcing contact upper end is stretched in the spout, and gapped between moving arcing contact and the spout, and the moving arcing contact lower end is connected with the cylinder inside wall by the first flange; Described cylinder bottom is enclosed within on the cylinder block, and the second flange is stamped in the cylinder block upper end, and pull bar passes the second flange and is fixedly connected with the first flange, and pull bar drives the first flange driving cylinder and moves; Described the first flange, cylinder, and the second flange surround plenum chamber, be provided with pressure-reducing valve and return-air valve on the second flange.
2. the elasticity pressure relieving system of reduction breaker operator merit according to claim 1, it is characterized in that, the lower end of described spout, moving arcing contact, cylinder, and the first flange surround the thermal expansion chamber, be provided with on the first flange by the unidirectional valve of downside to the upside conducting.
3. the elasticity pressure relieving system of reduction breaker operator merit according to claim 1 and 2 is characterized in that, the top of described moving arcing contact is provided with the moving arcing contact seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210526095.1A CN103000445B (en) | 2012-12-07 | 2012-12-07 | Reduce the elastic pressure relief system of breaker operation work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210526095.1A CN103000445B (en) | 2012-12-07 | 2012-12-07 | Reduce the elastic pressure relief system of breaker operation work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103000445A true CN103000445A (en) | 2013-03-27 |
| CN103000445B CN103000445B (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210526095.1A Active CN103000445B (en) | 2012-12-07 | 2012-12-07 | Reduce the elastic pressure relief system of breaker operation work |
Country Status (1)
| Country | Link |
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| CN (1) | CN103000445B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411288A (en) * | 2018-11-20 | 2019-03-01 | 许继（厦门）智能电力设备股份有限公司 | A kind of supplementary structure improving high-voltage circuitbreaker fracture insulation performance |
| CN112289628A (en) * | 2020-10-20 | 2021-01-29 | 西安西电开关电气有限公司 | Arc extinguish chamber with double pressure expansion chambers |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85107324A (en) * | 1985-09-30 | 1987-04-08 | Bbc勃朗勃威力有限公司 | Gas-blast switch |
| EP0933795A2 (en) * | 1998-01-29 | 1999-08-04 | Kabushiki Kaisha Toshiba | Gas circuit breaker |
| US20110163069A1 (en) * | 2010-01-06 | 2011-07-07 | Abb Research Ltd | Gas-insulated high-voltage switch |
| CN102177565A (en) * | 2008-10-09 | 2011-09-07 | 法国阿海珐集团输配电自动中心 | Cutoff chamber for high-voltage circuit breaker with improved arc quenching |
| CN202996699U (en) * | 2012-12-07 | 2013-06-12 | 益和电气集团股份有限公司 | A flexible pressure release system capable of reducing operation work of a breaker |
-
2012
- 2012-12-07 CN CN201210526095.1A patent/CN103000445B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85107324A (en) * | 1985-09-30 | 1987-04-08 | Bbc勃朗勃威力有限公司 | Gas-blast switch |
| EP0933795A2 (en) * | 1998-01-29 | 1999-08-04 | Kabushiki Kaisha Toshiba | Gas circuit breaker |
| CN102177565A (en) * | 2008-10-09 | 2011-09-07 | 法国阿海珐集团输配电自动中心 | Cutoff chamber for high-voltage circuit breaker with improved arc quenching |
| US20110163069A1 (en) * | 2010-01-06 | 2011-07-07 | Abb Research Ltd | Gas-insulated high-voltage switch |
| CN202996699U (en) * | 2012-12-07 | 2013-06-12 | 益和电气集团股份有限公司 | A flexible pressure release system capable of reducing operation work of a breaker |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411288A (en) * | 2018-11-20 | 2019-03-01 | 许继（厦门）智能电力设备股份有限公司 | A kind of supplementary structure improving high-voltage circuitbreaker fracture insulation performance |
| CN112289628A (en) * | 2020-10-20 | 2021-01-29 | 西安西电开关电气有限公司 | Arc extinguish chamber with double pressure expansion chambers |
| CN112289628B (en) * | 2020-10-20 | 2023-02-24 | 西安西电开关电气有限公司 | Arc extinguish chamber with double pressure expansion chambers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103000445B (en) | 2015-10-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Elastic pressure relief system for reducing breaker operation work Effective date of registration: 20190219 Granted publication date: 20151014 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: YIHE ELECTRIC GROUP Co.,Ltd. Registration number: 2019370010018 |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 266510 No. 717 West Huaihe Road, Huangdao District, Shandong, Qingdao Patentee after: Qingdao Yihe Electric Group Co.,Ltd. Address before: 266500 No. 38, Qinhuangdao Road, Huangdao District, Shandong, Qingdao Patentee before: YIHE ELECTRIC GROUP Co.,Ltd. |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230406 Granted publication date: 20151014 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: YIHE ELECTRIC GROUP Co.,Ltd. Registration number: 2019370010018 |