CN2476091Y - Device for preventing vacuum circuit breaker switch-on bounce - Google Patents
Device for preventing vacuum circuit breaker switch-on bounce Download PDFInfo
- Publication number
- CN2476091Y CN2476091Y CN 01218921 CN01218921U CN2476091Y CN 2476091 Y CN2476091 Y CN 2476091Y CN 01218921 CN01218921 CN 01218921 CN 01218921 U CN01218921 U CN 01218921U CN 2476091 Y CN2476091 Y CN 2476091Y
- Authority
- CN
- China
- Prior art keywords
- vacuum circuit
- circuit breaker
- closing
- bounce
- connecting lever
- 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.)
- Expired - Fee Related
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to a device which can prevent a vacuum circuit breaker from closing bouncing. The utility model adds a damping device, which is a bounce-preventing spring and a baffle on the body of the vacuum circuit breaker. Via the damping effect of the bounce-preventing spring, a movable contact is pulled towards the secondary sluice direction, thus the pin shaft is pressed tightly on a turn arm. The contact type is kept till the closing ends, thus the shifting process between pulling and pushing is removed and the factor which results in closing bouncing can be eliminated, and the closing bouncing problem of the vacuum circuit breaker can be effectively solved.
Description
The utility model relates to a kind of circuit breaker, relates in particular to a kind of vacuum circuit-breaker.
At present, electrical equipment in electric power system is made the field, vacuum circuit-breaker is the switch block of electric power system, the development of this series products is very swift and violent in recent years, but the closing rebound problem that perplexs the vacuum circuit-breaker of this product fails to solve always, though each manufacturer has taked many measures, problem still still can not find a kind of effective solution.
The purpose of this utility model just provides a kind of device that prevents switch-on trip of vacuum circuit breaker, is effective the time slot in the mid-term of eliminate closing a floodgate, the combined floodgate that the has satisfactorily resolved vacuum circuit-breaker problem of restriking.
The purpose of this utility model is realized by following technical scheme:
This device that prevents switch-on trip of vacuum circuit breaker, comprise switching-on mechanism 1, bellows 9, moving contact 10, fixed contact 11 and vacuum bubbles 12, its improvements be on this device, to be provided with one have stroke spring 2 drive link 3 it be connected for axle with connecting lever 4, connecting lever 4 is connected on the guide rod 8 by bearing pin 7.
The lower end of described guide rod 8 is provided with a shellproof ricochet spring 5 and a spring stop 6.
Described connecting lever 4 and bearing pin 7 matched in clearance.
This device that prevents switch-on trip of vacuum circuit breaker, compared with the prior art eliminated unsettled a period of time of combined floodgate mechanism in mid-term and drive system, make vacuum circuit-breaker in making process, keep connecting lever to promote the state of moving contact always, thereby the switch-on trip of vacuum circuit breaker problem is resolved, the safe operation problem of electric power system is improved.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 prevents the switch-on trip of vacuum circuit breaker schematic representation of apparatus for this;
Fig. 2, Fig. 3 are the motion state diagram of connecting lever.
See also Fig. 1, Fig. 2, shown in Figure 3, switching-on mechanism 1 is connected with 4 of connecting levers by a drive link 3 that has stroke spring 2, connecting lever 4 usefulness bearing pins are connected on the guide rod 8, the upper end of guide rod 8 is screwed in the lower end of moving contact 10, be with bellows 9 on the moving contact, fixed contact 11 and moving contact 10 all place in the vacuum bubbles 12, the lower end of guide rod 8 is provided with a shellproof ricochet spring 5 and a baffle plate 6, it is by the damping action of shellproof ricochet spring, moving contact 10 is pulled to the separating brake direction, and bearing pin 7 is pressed on the connecting lever 4, in making process, keep this way of contact always, that is to say that connecting lever 4 is promoting bearing pin 7 motions, when moving contact 10 contacts with fixed contact 11 during combined floodgate, the active force of mechanism 1 is still promoting bearing pin 7 by connecting lever 4 and is moving upward, stop until closing a floodgate, so just eliminated pulling and the transfer process that promotes, eliminated unsettled a period of time of combined floodgate mechanism in mid-term and drive system, eliminated and produced the factor of closing rebound, thereby the switch-on trip of vacuum circuit breaker problem is resolved.
Claims (3)
1. device that prevents switch-on trip of vacuum circuit breaker, comprise switching-on mechanism (1), bellows (9), moving contact (10), fixed contact (11) and vacuum bubbles (12), it is characterized in that on this device, being provided with one have stroke spring (2) drive link (3) it be connected for axle with connecting lever (4), connecting lever (4) is connected on the guide rod (8) by bearing pin (7).
2. a kind of device that prevents switch-on trip of vacuum circuit breaker according to claim 1 is characterized in that being provided with in the lower end of guide rod (8) a shellproof ricochet spring (5) and spring stop (6).
3. a kind of device that prevents switch-on trip of vacuum circuit breaker according to claim 1 is characterized in that connecting lever (4) and bearing pin (7) matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01218921 CN2476091Y (en) | 2001-04-04 | 2001-04-04 | Device for preventing vacuum circuit breaker switch-on bounce |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01218921 CN2476091Y (en) | 2001-04-04 | 2001-04-04 | Device for preventing vacuum circuit breaker switch-on bounce |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2476091Y true CN2476091Y (en) | 2002-02-06 |
Family
ID=33636853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01218921 Expired - Fee Related CN2476091Y (en) | 2001-04-04 | 2001-04-04 | Device for preventing vacuum circuit breaker switch-on bounce |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2476091Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163291A (en) * | 2014-06-09 | 2014-11-26 | 广东中烟工业有限责任公司 | Flexible pushing-cutting type cigarette box |
| CN107004542A (en) * | 2014-12-04 | 2017-08-01 | 伊顿公司 | Electric switch equipment and with bar axle clamping and holding assembly thereon |
| CN108493064A (en) * | 2018-03-30 | 2018-09-04 | 上海良信电器股份有限公司 | A kind of breaker bounce-proof auxiliary contact |
-
2001
- 2001-04-04 CN CN 01218921 patent/CN2476091Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163291A (en) * | 2014-06-09 | 2014-11-26 | 广东中烟工业有限责任公司 | Flexible pushing-cutting type cigarette box |
| CN107004542A (en) * | 2014-12-04 | 2017-08-01 | 伊顿公司 | Electric switch equipment and with bar axle clamping and holding assembly thereon |
| CN107004542B (en) * | 2014-12-04 | 2019-06-14 | 伊顿公司 | Electric switch equipment and with bar axis clamping and holding assembly thereon |
| CN108493064A (en) * | 2018-03-30 | 2018-09-04 | 上海良信电器股份有限公司 | A kind of breaker bounce-proof auxiliary contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |