CN102354637B - Active arc extinguish chamber used in circuit breaker - Google Patents
Active arc extinguish chamber used in circuit breaker Download PDFInfo
- Publication number
- CN102354637B CN102354637B CN201110213735.9A CN201110213735A CN102354637B CN 102354637 B CN102354637 B CN 102354637B CN 201110213735 A CN201110213735 A CN 201110213735A CN 102354637 B CN102354637 B CN 102354637B
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- Prior art keywords
- cylinder
- chong channel
- channel ascending
- ascending adversely
- arc extinguishing
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- 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 7
- 230000000171 quenching effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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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 by spraying the initiatively active arc extinguish chamber used in circuit breaker of arc extinguishing of arc extinguishing gases.
Background technology
The electric arc that arc control device produce while disconnection in order to limiting circuit breaker, also can play the effect of auxiliary extinction of arc 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 contact medium around, in the time that arcing contact disconnects, if there is enough large voltage between contact, and circuital current is while also reaching your pupil's arc current, will encourage above-mentioned free electronics and form electric arc.The electric arc of above-mentioned formation not only has very large 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 to design a kind of arc control device in circuit breaker that are applied to higher reliability, such as designing a kind of arc control device that adopt active mode to carry out arc extinguishing.
Summary of the invention
Technical problem to be solved by this invention is, a kind of active arc extinguish chamber used in circuit breaker is provided, and when it produces electric arc in circuit breaker, adopts the mode that arc position is initiatively sprayed to 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 solution used in the present invention is: a kind of active arc extinguish chamber used in circuit breaker, and these arc control device comprise: shell, this enclosure is seal cavity; Fixed contact, this fixed contact is fixed on the inwall of described shell; Chamber in arc extinguishing, in this arc extinguishing, chamber is provided with gas outlet and the first breather check valve; Qi of chong channel ascending adversely cylinder, this qi of chong channel ascending adversely cylinder is by the qi of chong channel ascending adversely inside wall of cylinder and rush cylinder outer wall and forms seal cavity, and this rushes cylinder outer wall and the interior chamber interior walls sealing paste of described arc extinguishing is combined, 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 the second breather check valve; Pull bar, this pull bar top is provided with moving contact, and this pull bar is connected with described qi of chong channel ascending adversely cylinder, can drive described qi of chong channel ascending adversely cylinder to do piston movement along chamber interior walls in described arc extinguishing; In addition, described the first breather check valve is the unidirectional valve to its inner air inlet from the outside of chamber in described arc extinguishing, described the second breather check valve is the unidirectional valve to its inner air inlet from the outside of described qi of chong channel ascending adversely cylinder, and the contact point of described fixed contact and described moving contact is positioned at the cavity that the described qi of chong channel ascending adversely inside wall of cylinder forms.
In described active arc extinguish chamber used in circuit breaker, in the seal cavity of described enclosure, be filled with arc extinguishing gases.
In described active arc extinguish chamber used in circuit breaker, described arc extinguishing gases is sulphur hexafluoride.
Advantage of the present invention is, in active arc extinguish chamber used in circuit breaker involved in the present invention, be provided with qi of chong channel ascending adversely cylinder, this qi of chong channel ascending adversely cylinder can do piston movement along chamber interior walls in described arc extinguishing, the cooperation by a pair of breather cheek valve in the time doing piston movement of this qi of chong channel ascending adversely cylinder is unidirectional to cylinder interior air inlet, then, the a pair of qi of chong channel ascending adversely mouth that utilizes cylinder top initiatively sprays arc extinguishing gases and carries out arc extinguishing producing the position of electric arc, can significantly improve like this arc quenching effect, the fail safe of raising circuit breaker.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of active arc extinguish chamber used in circuit breaker of the present invention.
Embodiment
For further disclosing technical scheme of the present invention, be hereby described with reference to the accompanying drawings embodiments of the present invention:
Fig. 1 is the overall structure schematic diagram of active arc extinguish chamber used in circuit breaker of the present invention, in figure, comprising: shell 10, and these shell 10 inside are seal cavity, sealing is filled with arc extinguishing gases in space, such as sulphur hexafluoride SF
6; Fixed contact 11, this fixed contact 11 is fixed on the inwall of described shell 10; Chamber 12 in arc extinguishing, in this arc extinguishing, chamber 12 is provided with gas outlet 122 and the first breather check valve 121; Qi of chong channel ascending adversely cylinder 14, this qi of chong channel ascending adversely cylinder 14 is by the qi of chong channel ascending adversely inside wall of cylinder 142 and rush cylinder outer wall 143 and form seal cavity, this rushes cylinder outer wall 143 and fits together with the interior chamber of described arc extinguishing 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 the second breather check valve 141; Pull bar 13, these pull bar 13 tops are provided with moving contact 131, and this pull bar 13 is connected with described qi of chong channel ascending adversely cylinder 14, can drive described qi of chong channel ascending adversely cylinder 14 to do piston movement along chamber 12 inwalls in described arc extinguishing; In addition, described the first breather check valve 121 is the unidirectional valve to its inner air inlet from the outside of chamber 12 in described arc extinguishing, described the second breather check valve 141 is the unidirectional valve to its inner air inlet from the outside of described qi of chong channel ascending adversely cylinder 14, and the contact point of described fixed contact 11 and described moving contact 131 is positioned at the cavity that the described qi of chong channel ascending adversely inside wall of cylinder 142 forms.
Course of action during below in conjunction with accompanying drawing explanation active arc extinguish chamber used in circuit breaker work of the present invention:
When work, by pulling pull bar 13 to drive described qi of chong channel ascending adversely cylinder 14 to do piston movement along chamber 12 inwalls in described arc extinguishing, this qi of chong channel ascending adversely cylinder 14 is unidirectional to the inner air inlet of this qi of chong channel ascending adversely cylinder 14 by the cooperation of a pair of breather cheek valve (the first breather check valve 121 and the second breather check valve 141) in the time doing piston movement, then the position that utilizes 144 pairs, a pair of qi of chong channel ascending adversely mouth on these qi of chong channel ascending adversely cylinder 14 tops to produce electric arcs is initiatively sprayed arc extinguishing gases and is carried out the position injection arc extinguishing gases that arc extinguishing disconnect fixed contact 11 and moving contact 131 and carry out arc extinguishing, can significantly improve like this arc quenching effect, improve the fail safe of circuit breaker.
More than, by description of listed embodiment, the basic ideas and basic principles of the present invention are set forth.But the present invention is never limited to above-mentioned listed execution mode, every equivalent variations of doing based on technical scheme of the present invention, improvement and deliberately become of inferior quality behavior, all should belong to protection scope of the present invention.
Claims (3)
1. an active arc extinguish chamber used in 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 described shell (10); Chamber (12) in arc extinguishing, in this arc extinguishing, chamber (12) is provided with gas outlet (122) and the first breather check valve (121); Qi of chong channel ascending adversely cylinder (14), this qi of chong channel ascending adversely cylinder (14) is by the qi of chong channel ascending adversely inside wall of cylinder (142) and rush cylinder outer wall (143) and form seal cavity, this rushes cylinder outer wall (143) and fits together with the interior chamber (12) of described arc extinguishing 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 the second breather check valve (141); Pull bar (13), this pull bar (13) top is provided with moving contact (131), and this pull bar (13) is connected with described qi of chong channel ascending adversely cylinder (14), can drive described qi of chong channel ascending adversely cylinder (14) to do piston movement along chamber (12) inwall in described arc extinguishing; In addition, described the first breather check valve (121) is the unidirectional valve to its inner air inlet from the outside of chamber (12) in described arc extinguishing, described the second breather check valve (141) is the unidirectional valve to its inner air inlet from the outside of described qi of chong channel ascending adversely cylinder (14), and the contact point of described fixed contact (11) and described moving contact (131) is positioned at the cavity that the described qi of chong channel ascending adversely inside wall of cylinder (142) forms.
2. active arc extinguish chamber used in circuit breaker according to claim 1, is characterized in that, in the seal cavity of described shell (10) inside, is filled with arc extinguishing gases.
3. active arc extinguish chamber used in circuit breaker according to claim 2, is characterized in that, described arc extinguishing gases is 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 CN102354637A (en) | 2012-02-15 |
| CN102354637B true 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 (4)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009289614A (en) * | 2008-05-29 | 2009-12-10 | Toshiba Corp | Gas-blast circuit-breaker |
-
2011
- 2011-07-28 CN CN201110213735.9A patent/CN102354637B/en active Active
Patent Citations (4)
| 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 |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2009-289614A 2009.12.10 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102354637A (en) | 2012-02-15 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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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 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for 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 |
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| 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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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. |