CN102354637A - Active arc extinguish chamber used in circuit breaker - Google Patents
Active arc extinguish chamber used in circuit breaker Download PDFInfo
- Publication number
- CN102354637A CN102354637A CN2011102137359A CN201110213735A CN102354637A CN 102354637 A CN102354637 A CN 102354637A CN 2011102137359 A CN2011102137359 A CN 2011102137359A CN 201110213735 A CN201110213735 A CN 201110213735A CN 102354637 A CN102354637 A CN 102354637A
- Authority
- CN
- China
- Prior art keywords
- arc
- chong channel
- channel ascending
- ascending adversely
- cylinder
- 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.)
- Granted
Links
- 239000007789 gas Substances 0.000 claims abstract description 16
- 230000002411 adverse Effects 0.000 claims description 39
- 230000001174 ascending effect Effects 0.000 claims description 39
- 238000007789 sealing Methods 0.000 claims description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 3
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010891 electric arc Methods 0.000 description 8
- 230000000171 quenching effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Circuit Breakers (AREA)
Abstract
The invention discloses an active arc extinguish chamber used in a circuit breaker. The arc extinguish chamber comprises a shell, a fixed contact, an inner arc extinguish chamber, an impact cylinder and a pull rod. The active arc extinguish chamber has the following advantages: the impact cylinder is arranged in the active arc extinguish chamber and carries out piston motion along the inner wall of the inner arc extinguish chamber, gas is supplied to the interior of the cylinder unidirectionally through coordination of a pair of unidirectional air inlet valves while the impact cylinder carries out piston motion, and then a pair of gas impact holes on the upper part of the cylinder are utilized to actively jet air extinguish gases to the positions at which arcs are generated to extinguish the arcs, thus obviously improving the arc extinguish effect and improving the safety of the circuit breaker.
Description
Technical field
The present invention relates to a kind of arc-extinguishing chamber of circuit breaker, particularly relate to a kind of through spraying the initiatively active arc-extinguishing chamber of circuit breaker of arc extinguishing of arc extinguishing gases.
Background technology
The electric arc that arc control device are produced when breaking off in order to limiting circuit breaker also can play the effect of auxiliary arc extinguishing sometimes.With regard to principle; The basic reason that circuit breaker produces electric arc is to contain a large amount of free electronics in device for switching contact itself and the contact medium on every side; When arcing contact breaks off; If there is enough big voltage between contact; And circuital current is when also reaching your pupil's arc current, will encourage above-mentioned free electronics and forms electric arc.The electric arc of above-mentioned formation not only has very big destruction to contact, and to make the time lengthening of open circuit, even more serious situation be to cause security incident because of electric arc.In sum, need a kind of arc control device in the circuit breaker that are applied to of design, such as designing a kind of arc control device that adopt active mode to carry out arc extinguishing with higher reliability.
Summary of the invention
Technical problem to be solved by this invention is, a kind of active arc-extinguishing chamber of circuit breaker is provided, and when it produces electric arc in circuit breaker, adopts the mode that arc position is initiatively sprayed arc extinguishing gases to carry out arc extinguishing, can significantly improve arc quenching effect.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of active arc-extinguishing chamber of circuit breaker, and these arc control device comprise: shell, this enclosure are seal cavity; Fixed contact, this fixed contact are fixed on the inwall of said shell; The arc extinguishing inner room, this arc extinguishing inner room is provided with the gas outlet and first breather check valve; The qi of chong channel ascending adversely cylinder, this qi of chong channel ascending adversely cylinder forms seal cavity by the qi of chong channel ascending adversely inside wall of cylinder and qi of chong channel ascending adversely cylinder outer wall, and this qi of chong channel ascending adversely cylinder outer wall and said arc extinguishing inner room inner wall sealing fit together, and this qi of chong channel ascending adversely cylinder top is provided with a pair of qi of chong channel ascending adversely mouth, and this qi of chong channel ascending adversely cylinder bottom is provided with second breather check valve; Pull bar, this pull bar top is equipped with moving contact, this pull bar is connected with said qi of chong channel ascending adversely cylinder, can drive said qi of chong channel ascending adversely cylinder along chamber interior walls in the said arc extinguishing labor the plug move.
In the described active arc-extinguishing chamber of circuit breaker, be filled with arc extinguishing gases in the seal cavity of said enclosure.
In the described active arc-extinguishing chamber of circuit breaker, said arc extinguishing gases is a sulphur hexafluoride.
Advantage of the present invention is; Be provided with the qi of chong channel ascending adversely cylinder in the active arc-extinguishing chamber of circuit breaker involved in the present invention; This qi of chong channel ascending adversely cylinder can be labored to fill in and moved along chamber interior walls in the said arc extinguishing; This qi of chong channel ascending adversely cylinder is unidirectional to the cylinder interior air inlet through the cooperation of a pair of breather cheek valve when doing the piston motion; Then; The a pair of qi of chong channel ascending adversely mouth that utilizes cylinder top initiatively sprays arc extinguishing gases to the position that produces electric arc and carries out arc extinguishing, can significantly improve arc quenching effect like this, improves the fail safe of circuit breaker.
Description of drawings
Fig. 1 is the overall structure sketch map of the active arc-extinguishing chamber of circuit breaker of the present invention.
Embodiment
For further disclosing technical scheme of the present invention, be described with reference to the accompanying drawings execution mode of the present invention now.
Fig. 1 is the overall structure sketch map of the active arc-extinguishing chamber of circuit breaker of the present invention, and among the figure, comprising: shell 10, these shell 10 inside are seal cavity, are filled with arc extinguishing gases in the sealing space, such as sulphur hexafluoride SF
6Fixed contact 11, this fixed contact 11 is fixed on the inwall of said shell 10; Arc extinguishing inner room 12, this arc extinguishing inner room 12 are provided with the gas outlet 122 and first breather check valve 121; Qi of chong channel ascending adversely cylinder 14; This qi of chong channel ascending adversely cylinder 14 forms seal cavity by the qi of chong channel ascending adversely inside wall of cylinder 142 and qi of chong channel ascending adversely cylinder outer wall 143; This qi of chong channel ascending adversely cylinder outer wall 143 fits together with said arc extinguishing inner room 12 inner wall sealings; These qi of chong channel ascending adversely cylinder 14 tops are provided with a pair of qi of chong channel ascending adversely mouth 144, and these qi of chong channel ascending adversely cylinder 14 bottoms are provided with second breather check valve 141; Pull bar 13, these pull bar 13 tops are equipped with moving contact 131, and this pull bar 13 is connected with said qi of chong channel ascending adversely cylinder 14, can drive said qi of chong channel ascending adversely cylinder 14 and do piston along said arc extinguishing inner room 12 inwalls and move.
Course of action when working below in conjunction with the active arc-extinguishing chamber of circuit breaker of description of drawings the present invention.
During work; Doing piston by the said qi of chong channel ascending adversely cylinder 14 of pulling pull bar 13 drives along said arc extinguishing inner room 12 inwalls moves; This qi of chong channel ascending adversely cylinder 14 is unidirectional to these qi of chong channel ascending adversely cylinder 14 inner air inlets by the cooperation of a pair of breather cheek valve (first breather check valve 121 and second breather check valve 141) when doing the piston motion; The position that utilizes 144 pairs in a pair of qi of chong channel ascending adversely mouth on these qi of chong channel ascending adversely cylinder 14 tops to produce electric arc is then initiatively sprayed arc extinguishing gases and is carried out position that arc extinguishing promptly breaks off static contact 11 and moving contact 131 and spray arc extinguishing gases and carry out arc extinguishing; Can significantly improve arc quenching effect like this, improve the security of breaker.
More than, basic design of the present invention and basic principle have been set forth through introduction to listed execution mode.But the present invention never is limited to above-mentioned listed execution mode, and every equivalent variations, improvement and deliberately of inferior quality behavior of doing based on technical scheme of the present invention of change all should belong to protection scope of the present invention.
Claims (3)
1. an active arc-extinguishing chamber of circuit breaker is characterized in that, these arc control device comprise: shell (10), and this shell (10) inside is seal cavity; Fixed contact (11), this fixed contact (11) is fixed on the inwall of said shell (10); Arc extinguishing inner room (12), this arc extinguishing inner room (12) is provided with gas outlet (122) and first breather check valve (121); Qi of chong channel ascending adversely cylinder (14); This qi of chong channel ascending adversely cylinder (14) forms seal cavity by the qi of chong channel ascending adversely inside wall of cylinder (142) and qi of chong channel ascending adversely cylinder outer wall (143); This qi of chong channel ascending adversely cylinder outer wall (143) fits together with said arc extinguishing inner room (12) inner wall sealing; This qi of chong channel ascending adversely cylinder (14) top is provided with a pair of qi of chong channel ascending adversely mouth (144), and this qi of chong channel ascending adversely cylinder (14) bottom is provided with second breather check valve (141); Pull bar (13), this pull bar (13) top is equipped with moving contact (131), and this pull bar (13) is connected with said qi of chong channel ascending adversely cylinder (14), can drive said qi of chong channel ascending adversely cylinder (14) and do the piston motion along said arc extinguishing inner room (12) inwall.
2. active arc-extinguishing chamber of circuit breaker according to claim 1 is characterized in that, is filled with arc extinguishing gases in the seal cavity of said shell (10) inside.
3. active arc-extinguishing chamber of circuit breaker according to claim 2 is characterized in that, said arc extinguishing gases is a sulphur hexafluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110213735.9A CN102354637B (en) | 2011-07-28 | 2011-07-28 | Active arc extinguish chamber used in circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110213735.9A CN102354637B (en) | 2011-07-28 | 2011-07-28 | Active arc extinguish chamber used in circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102354637A true CN102354637A (en) | 2012-02-15 |
| CN102354637B CN102354637B (en) | 2014-05-14 |
Family
ID=45578177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110213735.9A Active CN102354637B (en) | 2011-07-28 | 2011-07-28 | Active arc extinguish chamber used in circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102354637B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3240910A (en) * | 1962-07-05 | 1966-03-15 | Bbc Brown Boveri & Cie | Gas blast circuit breaker with stationary spaced tubular contacts and piston actuated contact bridge including blast valve actuated thereby |
| CN101064226A (en) * | 2006-04-27 | 2007-10-31 | 株式会社东芝 | Air blowing breaker |
| CN201289817Y (en) * | 2009-03-13 | 2009-08-12 | 扬州北辰电气设备有限公司 | Looped network cabinet loop load switch |
| JP2009289614A (en) * | 2008-05-29 | 2009-12-10 | Toshiba Corp | Gas-blast circuit-breaker |
| CN202134478U (en) * | 2011-07-28 | 2012-02-01 | 苏州鼎能电力设备有限公司 | Active breaker arc extinguish chamber |
-
2011
- 2011-07-28 CN CN201110213735.9A patent/CN102354637B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3240910A (en) * | 1962-07-05 | 1966-03-15 | Bbc Brown Boveri & Cie | Gas blast circuit breaker with stationary spaced tubular contacts and piston actuated contact bridge including blast valve actuated thereby |
| CN101064226A (en) * | 2006-04-27 | 2007-10-31 | 株式会社东芝 | Air blowing breaker |
| JP2009289614A (en) * | 2008-05-29 | 2009-12-10 | Toshiba Corp | Gas-blast circuit-breaker |
| CN201289817Y (en) * | 2009-03-13 | 2009-08-12 | 扬州北辰电气设备有限公司 | Looped network cabinet loop load switch |
| CN202134478U (en) * | 2011-07-28 | 2012-02-01 | 苏州鼎能电力设备有限公司 | Active breaker arc extinguish chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102354637B (en) | 2014-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| ASS | Succession or assignment of patent right |
Owner name: BAICHENG POWER SUPPLY COMPANY, STATE GRID JILIN EL Effective date: 20140725 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: SUZHOU DINGNENG ELECTRIC POWER EQUIPMENT CO.,LTD. Effective date: 20140725 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Geng Yunxiu Inventor after: Qin Fan Inventor after: Kang Ke Inventor after: Wu Hao Inventor after: Zhao Guoqing Inventor before: Zhang Jicheng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG JICHENG TO: GENG YUNXIU QIN FAN KANG KE WU HAO ZHAO GUOQING Free format text: CORRECT: ADDRESS; FROM: 215000 SUZHOU, JIANGSU PROVINCE TO: 100031 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140725 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: BAICHENG POWER SUPPLY COMPANY OF STATE GRID JILIN ELECTRIC POWER COMPANY Patentee after: HANGZHOU WUSHI TECHNOLOGY CO., LTD. Address before: 219, room 3, building 205, Binhe Road, Suzhou hi tech Zone, Jiangsu, Suzhou, 215000 Patentee before: Suzhou Dingneng Electric Power Equipment Co.,Ltd. |