CN2540020Y - Vacuum arc-extinguishing chamber for circuit breaker - Google Patents
Vacuum arc-extinguishing chamber for circuit breaker Download PDFInfo
- Publication number
- CN2540020Y CN2540020Y CN 02235375 CN02235375U CN2540020Y CN 2540020 Y CN2540020 Y CN 2540020Y CN 02235375 CN02235375 CN 02235375 CN 02235375 U CN02235375 U CN 02235375U CN 2540020 Y CN2540020 Y CN 2540020Y
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- China
- Prior art keywords
- arc
- magnetic field
- dynamic
- cup
- vacuum
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- Expired - Fee Related
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Abstract
A vacuum arc extinguish chamber for a novel breaker comprises a glass shell, dynamic contact, static contact, voltage-sharing ring, shielding enclosure and corrugated tube, wherein the dynamic and static contacts have Cup-shaped structure, on which a spiral groove is cut, when the short-circuit current passes through, a magnetic field similar to arc current in parallel is generated, that is, the longitudinal magnetic field structure, to support arc extinguishing. After vacuum is exhausted, the exhaust pipe is close to the plane cut seal of the mounting plate as far as possible, and after a fracture is closed with epoxy resin well, the exhaust pipe is fixed with a circular cap, which height is less than 10mm. Due to the structure, the arc extinguish capacity of the utility model breaker is raised and the arc extinguish chamber is very easily positioned.
Description
Technical field
The utility model relates to the vacuum interrupter of the arc control device that high-pressure vacuum breaker is used, particularly a kind of glass shell.
Background technology
At present, general circuit breaker vacuum interrupter uses the ceramic package except that part, and major part is still used glass shell, and its advantage is that cheap, (vacuum degree is not enough) can produce visible blue light as leaking gas.But there are two big defectives in these type of arc control device: at first, produce the auxiliary arc extinguishing of transverse magnetic field in the arc extinguishing process, effect is undesirable; Secondly, not to press close to the mounting panel plane to cut off sealing because of adopting twice its blast pipe of sealing exhaust process, cut off sealing but reserve a segment length, and then, live with the circle cap at last, in case be damaged by collision with the epoxy sealing protection.Because of blast pipe stays longly, the height of protective cap is all greater than 10 millimeters, and this has just brought the inconvenience of installing concerning circuit breaker.
Summary of the invention
The purpose of this utility model is: provide a kind of arc extinguishing ability novel breaker vacuum interrupter strong, easy for installation.
The purpose of this utility model is achieved in that a kind of novel breaker vacuum interrupter, is by glass shell, dynamic and static contact, and grading ring, radome and bellows are formed; Wherein, dynamic and static contact adopts " cup " shape structure, has cut spiral groove on " cup " body, when short circuit current passes through, produces one and the approximately parallel magnetic field of arc current, and promptly vertical magnetic field structure is assisted arc extinguishing.After exhausting vacuum, the blast pipe mounting panel plane of trying one's best cuts off sealing, sealed incision position with epoxy resin after, on round cap, fix with one, justify height≤10 millimeter of cap.
Owing to above-mentioned structure is arranged, makes that the arc extinguishing ability of the utility model circuit breaker improves, the installation of arc control device is very convenient again.
Description of drawings
Fig. 1: structure chart of the present utility model;
Fig. 2: prior art constructions figure.
Among the figure: the 1-mounting panel; The 2-protective cap; 3-cuts off the blast pipe after the sealing; 4-epoxy resin filler; The 5-steam vent; The quiet end grading ring of 6-; The 7-glass shell; The 8-shielding cylinder, the 9-fixed contact; The 10-moving contact, 11-moved end grading ring; The 12-moving conductive rod; The 13-bellows.
Concrete enforcement
As seen from Figure 1, cut on moving contact 10, the fixed contact 9 in a certain angle with the axis the edge of a knife make magnetic field and the arc current homophase that electric current in the conductor produces, promptly usually said " indulging magnetic " structure.This structural test shows that arc quenching effect is better.In addition, the root that blast pipe stays when cutting off is shorter, and the protection looks spy of An Zhuaning is very short at last, and the height of protective cap is smaller or equal to 10 millimeters.Thereby be convenient to install and use.
Referring to Fig. 2, the root of conventional arc control device stays longly, and the protection looks of An Zhuaning are also very high at last, and its height is more than or equal to 10 millimeters.Be not easy to install and use, in addition, the angle between the otch on the dynamic/static contact and axis and shown in Figure 1 different, the magnetic field of the auxiliary arc extinguishing of body becomes 90 ° component with arc current be main, be usually said " horizontal magnetic " structure, this structure arc quenching effect is not ideal enough.
Claims (2)
1, a kind of novel breaker vacuum interrupter is characterized in that: be by glass shell, and dynamic and static contact, grading ring, radome and bellows are formed; Wherein, dynamic and static contact adopts " cup " shape structure, has cut spiral groove on " cup " body, when short circuit current passes through, produces one and the approximately parallel magnetic field of arc current, and promptly vertical magnetic field structure is assisted arc extinguishing.
2, a kind of novel breaker vacuum interrupter according to claim 1, it is characterized in that: after exhausting vacuum, the blast pipe mounting panel plane of trying one's best cuts off sealing, sealed incision position with epoxy resin after, fixing on round cap with one, height≤10 of circle cap millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02235375 CN2540020Y (en) | 2002-05-31 | 2002-05-31 | Vacuum arc-extinguishing chamber for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02235375 CN2540020Y (en) | 2002-05-31 | 2002-05-31 | Vacuum arc-extinguishing chamber for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2540020Y true CN2540020Y (en) | 2003-03-12 |
Family
ID=33709903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02235375 Expired - Fee Related CN2540020Y (en) | 2002-05-31 | 2002-05-31 | Vacuum arc-extinguishing chamber for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2540020Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100530481C (en) * | 2007-06-05 | 2009-08-19 | 西安交通大学 | A 252kV single-break vacuum interrupter |
| CN102044375A (en) * | 2010-12-15 | 2011-05-04 | 北京京东方真空电器有限责任公司 | Vacuum switch tube |
| CN104576162A (en) * | 2014-12-31 | 2015-04-29 | 北京双杰电气股份有限公司 | Grounding switch contact and straight movement plug-in type grounding switch with same |
| CN104576163A (en) * | 2014-12-31 | 2015-04-29 | 北京双杰电气股份有限公司 | Grounding switch contact and straight moving plug-in type grounding switch with the same |
| CN104969322A (en) * | 2012-11-08 | 2015-10-07 | Abb技术股份公司 | Vacuum interrupter arrangement for a medium voltage circuit breaker with cup-shaped TMF-contacts |
| CN105914096A (en) * | 2016-07-01 | 2016-08-31 | 天津平高智能电气有限公司 | Contact assembly for improving breaking capacity of arc extinguish chamber and arc extinguish chamber |
| CN114203475A (en) * | 2021-12-03 | 2022-03-18 | 北京中车赛德铁道电气科技有限公司 | Grounding switch with reinforced insulation moving and static contact structure |
-
2002
- 2002-05-31 CN CN 02235375 patent/CN2540020Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100530481C (en) * | 2007-06-05 | 2009-08-19 | 西安交通大学 | A 252kV single-break vacuum interrupter |
| CN102044375A (en) * | 2010-12-15 | 2011-05-04 | 北京京东方真空电器有限责任公司 | Vacuum switch tube |
| CN104969322A (en) * | 2012-11-08 | 2015-10-07 | Abb技术股份公司 | Vacuum interrupter arrangement for a medium voltage circuit breaker with cup-shaped TMF-contacts |
| CN104576162A (en) * | 2014-12-31 | 2015-04-29 | 北京双杰电气股份有限公司 | Grounding switch contact and straight movement plug-in type grounding switch with same |
| CN104576163A (en) * | 2014-12-31 | 2015-04-29 | 北京双杰电气股份有限公司 | Grounding switch contact and straight moving plug-in type grounding switch with the same |
| CN104576162B (en) * | 2014-12-31 | 2017-06-16 | 北京双杰电气股份有限公司 | Earthed switch contact and the direct acting plug-in type earthed switch with it |
| CN105914096A (en) * | 2016-07-01 | 2016-08-31 | 天津平高智能电气有限公司 | Contact assembly for improving breaking capacity of arc extinguish chamber and arc extinguish chamber |
| CN105914096B (en) * | 2016-07-01 | 2019-01-18 | 天津平高智能电气有限公司 | A kind of contact assembly and arc-chutes improving arc-chutes connecting-disconnecting function |
| CN114203475A (en) * | 2021-12-03 | 2022-03-18 | 北京中车赛德铁道电气科技有限公司 | Grounding switch with reinforced insulation moving and static contact structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Tang Jialong Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |