CN103489698A - Brake breaking device for vacuum arc-extinguishing chamber - Google Patents
Brake breaking device for vacuum arc-extinguishing chamber Download PDFInfo
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- CN103489698A CN103489698A CN201310440762.9A CN201310440762A CN103489698A CN 103489698 A CN103489698 A CN 103489698A CN 201310440762 A CN201310440762 A CN 201310440762A CN 103489698 A CN103489698 A CN 103489698A
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- sliding sleeve
- clamping device
- vacuum interrupter
- breaking device
- vacuum
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Abstract
The invention discloses a brake breaking device for a vacuum arc-extinguishing chamber. The brake breaking device comprises holders, clamping devices, holding sliding sleeves and a running end copper stock. Each holding sliding sleeve is arranged on the outer circumference of the front end of the running end copper stock. The outer diameter of each holding sliding sleeve firstly gradually becomes large and then gradually becomes small. The outer sides of the holding sliding sleeves are sleeved with the holders. A circular groove is formed in the inner wall of each holder. The clamping devices are arranged in the circular grooves, and the holding sliding sleeves are clamped by the inner walls of the clamping devices. By the adoption of the brake breaking device, the distance between vacuum envelopes can be controlled, and the vacuum arc-extinguishing chamber can be made to meet the electrical performance requirements.
Description
Technical field
The present invention relates to a kind of parts of vacuum interrupter, refer in particular to a kind of vacuum that can control and bubble open apart from and can make vacuum interrupter to meet the switching-off device that vacuum interrupter that electric property requires is used.
Background technology
Vacuum interrupter: having another name called vacuum switch tube, is the core component of mesohigh power switch, and its Main Function is, by managing insulating properties that interior vacuum is good, makes after mesohigh circuitry cuts power supply blow-out rapidly and suppresses electric current, avoids accident and unexpected the generation.
The separating brake of the circuit breaker of existing vacuum interrupter is only to realize by tripping spring, by the stored power of spring, directly promotes the moved end contact of vacuum interrupter, makes it reach the purpose of turn-off current.
The shortcoming of prior art is: 1. prior art is given the separating brake of circuit breaker/maintenance the tripping spring processing fully, because there is the closing force of contact in vacuum interrupter, once tripping spring causes the decay of power or tripping spring that moulding distortion has occurred because of long-term compression, the separating brake set power can't be provided, thereby have influence on the distance of opening of contact; 2. in order to guarantee the separating brake distance of circuit breaker, must increase the final power value of tripping spring, will make the wire diameter of spring become large, highly increase, power when this will bring us to close a floodgate can be very large, increases the difficulty of operating mechanism, thus the potential safety hazard of bringing.
Summary of the invention
The present invention seeks to provide in order to overcome the deficiencies in the prior art a kind of vacuum that can control to bubble open apart from and can make vacuum interrupter to meet the switching-off device that vacuum interrupter that electric property requires is used.
For achieving the above object, the technical solution used in the present invention is: the switching-off device that a kind of vacuum interrupter is used comprises retainer, clamping device, maintenance sliding sleeve, moved end copper part; Described maintenance sliding sleeve is arranged on the excircle of front end of moved end copper part; The external diameter of described maintenance sliding sleeve first increases gradually, then dwindles gradually; Described retainer is set in the outside that keeps sliding sleeve; Be provided with circular groove on the inwall of described retainer; Described clamping device is arranged in circular groove; The inwall of described clamping device clamps and keeps sliding sleeve.
Preferably, the annulus that described clamping device is a disconnection; The inwall of described annulus is provided with inclined-plane; The outer wall of described annulus is arranged to circular-arc.
Preferably, described clamping device, comprise thin wall circular; Be provided with spring on the outer wall of described thin wall circular; Described spring is arranged in circular groove.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
The switching-off device that the present invention program's vacuum interrupter is used, having solved separating brake maintenance under current structure is to rely on tripping spring to realize, because equipment tripping spring in running causes the decay of power or tripping spring that moulding distortion has occurred in compressive state for a long time, thereby have influence on the problem of opening distance of contact; Also overcome because of original structure because the existence of tripping spring can be offset a part of vacuum arc-extinguishing chamber contact contact force simultaneously, caused vacuum interrupter can not meet the defect that electric property requires; The vacuum that the present invention can control bubbles open apart from and can make vacuum interrupter meet the electric property requirement.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
The partial sectional view of the "on" position of the switching-off device that accompanying drawing 1 is used for vacuum interrupter of the present invention;
The partial sectional view of the gate-dividing state of the switching-off device that accompanying drawing 2 is used for vacuum interrupter of the present invention;
The stereogram of an embodiment of the clamping device that the switching-off device that accompanying drawing 3 is used for vacuum interrupter of the present invention is used;
Wherein: 1, vacuum interrupter moving contact; 2, retainer; 3, clamping device; 4, keep sliding sleeve; 5, moved end copper part.
embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Accompanying drawing 1-3 is the switching-off device that a kind of vacuum interrupter of the present invention is used, and comprises retainer 2, clamping device 3, keeps sliding sleeve 4, moved end copper part 5; Described maintenance sliding sleeve 4 screw threads are fixed on the excircle of front end of moved end copper part 5; The external diameter of described maintenance sliding sleeve 4 first increases gradually, then dwindles gradually; Described retainer 2 is set in the outside that keeps sliding sleeve 4; Be provided with circular groove (not marking) on the inwall of described retainer 2; Described clamping device 3 is arranged in circular groove; The inwall of described clamping device 3 clamps and keeps sliding sleeve 4; The leading section of described moved end copper part 5 is provided with vacuum interrupter moving contact 1; When moved end copper part 5 moves downward, described vacuum interrupter moving contact 1 can contact with the vacuum interrupter fixed contact, realizes closed; In the present embodiment, the annulus that described clamping device 3 is a disconnection; The inwall of described annulus is provided with inclined-plane (not marking); The outer wall of described annulus is arranged to circular-arc (not marking), as shown in Figure 3.
Certainly, described clamping device 3 also can be arranged to: comprise the thin wall circular (not shown); Be provided with the spring (not shown) on the outer wall of described thin wall circular; Described spring is arranged in circular groove.
The course of work of the switching-off device that vacuum interrupter of the present invention is used: in the time will carrying out separating brake, make moved end copper part 5 and keep sliding sleeve 4 to move upward, keep the outer circumference surface on sliding sleeve 4 to make clamping device 3 outwards strut, when clamping device 3 is broken through the peak that keeps sliding sleeves 4, clamping device 3 is got back to initial condition and is still held tightly and keep sliding sleeve 4 due to self elasticity; When the enclasping force of clamping device 3 is greater than the self-closing power of vacuum interrupter---separating brake keeps just having realized, as shown in Figure 2.In the time will being closed a floodgate, moved end copper part 5 moves downward with keeping sliding sleeve 4, by keeping the outer circumference surface on sliding sleeve 4 that clamping device 3 is outwards strutted, when clamping device 3 is broken through the peak that keeps sliding sleeve 4, the confining force of clamping device 3 just is not enough to overcome the self-closing power of vacuum interrupter, the separating brake holding device lost efficacy to realize "on" position, as shown in Figure 1.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
The switching-off device that the present invention program's vacuum interrupter is used, having solved separating brake maintenance under current structure is to rely on tripping spring to realize, because equipment tripping spring in running causes the decay of power or tripping spring that moulding distortion has occurred in compressive state for a long time, thereby have influence on the problem of opening distance of contact; Also overcome because of original structure because the existence of tripping spring can be offset a part of vacuum arc-extinguishing chamber contact contact force simultaneously, caused vacuum interrupter can not meet the defect that electric property requires; The vacuum that the present invention can control bubbles open apart from and can make vacuum interrupter meet the electric property requirement.
Above-described embodiment is only explanation technical conceive of the present invention and characteristics; its purpose is to allow the person skilled in the art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. the switching-off device that vacuum interrupter is used, is characterized in that: comprise retainer, clamping device, maintenance sliding sleeve, moved end copper part; Described maintenance sliding sleeve is arranged on the excircle of front end of moved end copper part; The external diameter of described maintenance sliding sleeve first increases gradually, then dwindles gradually; Described retainer is set in the outside that keeps sliding sleeve; Be provided with circular groove on the inwall of described retainer; Described clamping device is arranged in circular groove; The inwall of described clamping device clamps and keeps sliding sleeve.
2. the switching-off device that vacuum interrupter according to claim 1 is used is characterized in that: the annulus that described clamping device is a disconnection; The inwall of described annulus is provided with inclined-plane; The outer wall of described annulus is arranged to circular-arc.
3. the switching-off device that vacuum interrupter according to claim 1 is used is characterized in that: described clamping device comprises thin wall circular; Be provided with spring on the outer wall of described thin wall circular; Described spring is arranged in circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310440762.9A CN103489698B (en) | 2013-09-25 | 2013-09-25 | A kind of switching-off device of vacuum interrupter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310440762.9A CN103489698B (en) | 2013-09-25 | 2013-09-25 | A kind of switching-off device of vacuum interrupter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103489698A true CN103489698A (en) | 2014-01-01 |
| CN103489698B CN103489698B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310440762.9A Expired - Fee Related CN103489698B (en) | 2013-09-25 | 2013-09-25 | A kind of switching-off device of vacuum interrupter |
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| CN (1) | CN103489698B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2943104A1 (en) * | 1979-10-25 | 1981-05-21 | Westfaelische Berggewerkschaft | Mining equipment electrical switching contact - has interlocking parts, with thick ended fingers forced against disc by sloping housing surface |
| DE3218907A1 (en) * | 1982-05-19 | 1983-11-24 | Sachsenwerk, Licht- und Kraft-AG, 8000 München | Method and arrangement for switching vacuum switches |
| CN202454486U (en) * | 2012-01-04 | 2012-09-26 | 苏州朗格电气有限公司 | Vacuum breaker with closing retaining device |
| CN203573899U (en) * | 2013-09-25 | 2014-04-30 | 苏州朗格电气有限公司 | Brake breaking device for vacuum arc-extinguishing chamber |
-
2013
- 2013-09-25 CN CN201310440762.9A patent/CN103489698B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2943104A1 (en) * | 1979-10-25 | 1981-05-21 | Westfaelische Berggewerkschaft | Mining equipment electrical switching contact - has interlocking parts, with thick ended fingers forced against disc by sloping housing surface |
| DE3218907A1 (en) * | 1982-05-19 | 1983-11-24 | Sachsenwerk, Licht- und Kraft-AG, 8000 München | Method and arrangement for switching vacuum switches |
| CN202454486U (en) * | 2012-01-04 | 2012-09-26 | 苏州朗格电气有限公司 | Vacuum breaker with closing retaining device |
| CN203573899U (en) * | 2013-09-25 | 2014-04-30 | 苏州朗格电气有限公司 | Brake breaking device for vacuum arc-extinguishing chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103489698B (en) | 2015-10-28 |
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Effective date of registration: 20170717 Address after: Cao Hu Building No. 1 Yongchang Jing Road Xiangcheng Economic Development Zone of Suzhou City, Jiangsu province 215000 room 1718 Patentee after: Suzhou Lange intelligent Limited by Share Ltd Address before: 215144 Jiangsu city of Suzhou province Xiangcheng District Beiqiao Street Road, Huazhong Science and Technology Park in Suzhou Guangji Lange Electric Co. Ltd. Patentee before: Suzhou Langer Electric Co., Ltd. |
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Address after: 215000 Jiangsu city of Suzhou province Xiangcheng District metro rail to South Road No. 58 Patentee after: China nuclear power and energy Limited by Share Ltd Address before: Cao Hu Building No. 1 Yongchang Jing Road Xiangcheng Economic Development Zone of Suzhou City, Jiangsu province 215000 room 1718 Patentee before: Suzhou Lange intelligent Limited by Share Ltd |
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Granted publication date: 20151028 Termination date: 20190925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |