CN204215949U - A kind of zero spring vacuum circuit-breaker - Google Patents
A kind of zero spring vacuum circuit-breaker Download PDFInfo
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- CN204215949U CN204215949U CN201420568302.4U CN201420568302U CN204215949U CN 204215949 U CN204215949 U CN 204215949U CN 201420568302 U CN201420568302 U CN 201420568302U CN 204215949 U CN204215949 U CN 204215949U
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- breaker
- vacuum circuit
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- braking
- ratchet
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Abstract
The utility model discloses a kind of zero spring vacuum circuit-breaker, described vacuum circuit-breaker is provided with vacuum interrupter, link gear and brake mechanism, described vacuum interrupter is connected by link gear and brake mechanism, described brake mechanism comprises braking sincere son, cam and ratchet, the sincere sub-one end of described braking and link gear are connected, the sincere sub-other end of described braking can contact with cam, described cam and ratchet can rotate respectively on vacuum circuit-breaker, described cam is provided with draw-in groove, described ratchet is provided with latch, described latch and draw-in groove rotatable engagement.The utility model structure is simple, easy to operate, long service life, cut-offs, making capability is strong.
Description
Technical field
The utility model relates to a kind of vacuum circuit-breaker, is specifically related to a kind of zero spring vacuum circuit-breaker.
Background technology
Vacuum circuit-breaker is in the market ubiquity breaker closing bounce all, and switch-on trip of vacuum circuit breaker time of current domestic production is general≤2ms.Closing rebound accelerates the wearing and tearing of arc control device contact, has a strong impact on the electric life of circuit breaker, and when closing fault current, breaker closing spring causes electric arc arcing, can directly cause circuit breaker to close failure time serious.
See Fig. 1, when after breaker closing, mainly withstand cam 102 by braking sincere sub 101 thus ensure that main shaft does not rotate, but reality in this process, brake sincere sub 101 is not just withstand cam 102 quickly, but first contact cam 102, then after rotating dead point, just cam 102 can be withstood, in this process, the dynamic/static contact of vacuum interrupter 103 first can contact and close, then slightly can separate, finally close again motionless, the direct basic reason of Here it is vacuum circuit-breaker ubiquity closing rebound.
Utility model content
The utility model in order to solve switch-on trip of vacuum circuit breaker problem, thus provides a kind of zero spring vacuum circuit-breaker.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of zero spring vacuum circuit-breaker, described vacuum circuit-breaker is provided with vacuum interrupter, link gear and brake mechanism, described vacuum interrupter is connected by link gear and brake mechanism, described brake mechanism comprises braking sincere son, cam and ratchet, the sincere sub-one end of described braking and link gear are connected, the sincere sub-other end of described braking can contact with cam, described cam and ratchet can rotate respectively on vacuum circuit-breaker, described cam is provided with draw-in groove, described ratchet is provided with latch, described latch and draw-in groove rotatable engagement.
In a preferred embodiment of the present utility model, the conducting rod of described vacuum interrupter is arranged with double-ply bellows.
In a preferred embodiment of the present utility model, the fixed contact of described vacuum interrupter is provided with damping buffer.
In a preferred embodiment of the present utility model, be provided with copper and work out and be with between described damping buffer and fixed contact, described copper establishment band is connected with the upper bracket of vacuum circuit-breaker.
In a preferred embodiment of the present utility model, described cam section is semicircle, and be provided with bayonet socket in the middle of described cam, described bayonet socket is braked sincere son and is connected, and described cam side offers draw-in groove, and the shape of draw-in groove and the matching form of latch close.
By technique scheme, the beneficial effects of the utility model are:
The utility model structure is simple, easy to operate, long service life, cut-offs, making capability is strong.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing vacuum circuit-breaker;
Fig. 2 is the structural representation of vacuum interrupter;
Fig. 3 is the structural representation before brake mechanism braking;
Fig. 4 is the structural representation after brake mechanism braking.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
See Fig. 1 to Fig. 4, the utility model adopts brake mechanism to replace braking sincere sub 101 in vacuum circuit-breaker and cam 102, and it comprises sincere sub 201, the cam 202 of braking and ratchet 203 respectively.
Brake sincere sub 201, it is arranged on vacuum circuit-breaker, and brake sincere sub 201 to be connected with the transmission mechanism 300 in vacuum circuit-breaker, after pressing switch knob, braking sincere sub 201 can to left movement, and braking sincere sub 201 when moving, moving upward by the link moving contact of arc control device 400 of transmission mechanism 300.
Cam 202, it is arranged on the sincere top of sub 201 of braking, and it can rotate on vacuum circuit-breaker, and cam 202 is also sincere sub 201 in mating connection with braking.
Cam 202, its cross section is a semicircle, a bayonet socket 202a is provided with in the middle part of cam 202, bayonet socket 202a matches with braking sincere sub 201, and when braking sincere sub 201 is to left movement, when the moving contact of arc control device 400 just contacts with fixed contact, brake sincere sub 201 and just assign in bayonet socket 202a, cam 202 can be used for carrying out tentatively spacing to braking sincere sub 201.
Due to the effect of inertia of switching-in spring, after moving contact just contacts with fixed contact, moving contact can continue to move upward, at this moment moving contact can link sincere sub 201 continuation of braking to left movement by transmission mechanism 300, interlock braking sincere sub 201 can be rotated counterclockwise by actuating cams 202, easily like this occurs bounce.
In order to can be sincere sub 201 spacing further to braking, the side of cam 202 be also provided with a draw-in groove 202b, a ratchet 203 is also set above cam 202.
Ratchet 203, it can rotate on vacuum circuit-breaker, and ratchet 203 cross section is a rectangle, and the face that the side of ratchet 203 is corresponding with cam 202 is provided with a latch 203a, and latch 203a can with the draw-in groove 202b rotatable engagement on cam 202.
Like this, when braking sincere sub 201 actuating cams 202 and being rotated counterclockwise, the side of cam 202 can promote ratchet 203 and rotate, and after rotating to an angle, the latch 203a on ratchet 203 just can inject in the draw-in groove 202b of cam 202, thus cam 202 is blocked, at this moment close a floodgate and just terminate, brake sincere sub 201 and blocked can not rotate completely, like this, the moving contact of arc control device 400 just can not rebound, and would not occur bounce.
In order to improve the performance of vacuum circuit-breaker further, thoroughly stop the appearance of vacuum circuit-breaker bounce, can by 410 sheathed double-ply bellows 420 on the conducting rod of arc control device 400, due to the similar spring of bellows 420, significantly can reduce on/off switch like this to impact, reduce spring, the mechanical endurance of arc control device can also be increased.
The utility model also arranges damping buffer on the fixed contact 430 of arc control device 400, between damping buffer and fixed contact 430, arrange copper work out and be with, copper establishment band is connected with the upper bracket 500 of vacuum circuit-breaker, like this, when breaker closing, can the impulsive force of moving contact to fixed contact be dropped to minimum.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. a spring vacuum circuit-breaker, described vacuum circuit-breaker is provided with vacuum interrupter, link gear and brake mechanism, described vacuum interrupter is connected by link gear and brake mechanism, it is characterized in that, described brake mechanism comprises braking sincere son, cam and ratchet, the sincere sub-one end of described braking and link gear are connected, the sincere sub-other end of described braking can contact with cam, described cam and ratchet can rotate respectively on vacuum circuit-breaker, described cam is provided with draw-in groove, described ratchet is provided with latch, described latch and draw-in groove rotatable engagement.
2. a kind of zero spring vacuum circuit-breaker according to claim 1, is characterized in that, the conducting rod of described vacuum interrupter is arranged with double-ply bellows.
3. a kind of zero spring vacuum circuit-breaker according to claim 1, it is characterized in that, the fixed contact of described vacuum interrupter is provided with damping buffer.
4. a kind of zero spring vacuum circuit-breaker according to claim 3, it is characterized in that, be provided with copper and work out and be with between described damping buffer and fixed contact, described copper is worked out to be with and is connected with the upper bracket of vacuum circuit-breaker.
5. a kind of zero spring vacuum circuit-breaker according to claim 1, it is characterized in that, described cam section is semicircle, bayonet socket is provided with in the middle of described cam, described bayonet socket is braked sincere son and is connected, and described cam side offers draw-in groove, and the shape of draw-in groove and the matching form of latch close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568302.4U CN204215949U (en) | 2014-09-29 | 2014-09-29 | A kind of zero spring vacuum circuit-breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568302.4U CN204215949U (en) | 2014-09-29 | 2014-09-29 | A kind of zero spring vacuum circuit-breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204215949U true CN204215949U (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420568302.4U Active CN204215949U (en) | 2014-09-29 | 2014-09-29 | A kind of zero spring vacuum circuit-breaker |
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| CN (1) | CN204215949U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992092A (en) * | 2017-05-15 | 2017-07-28 | 上海交通大学 | Breaker closing transmission mechanism |
| CN109637908A (en) * | 2018-12-21 | 2019-04-16 | 上海电器科学研究所（集团）有限公司 | A kind of breaker of plastic casing contact retaining mechanism |
| CN109659204A (en) * | 2017-10-12 | 2019-04-19 | 江苏高博锐电气有限公司 | A kind of lock for circuit breaker shell type bounce-proof mechanism |
| CN111492453A (en) * | 2017-12-21 | 2020-08-04 | 西门子股份公司 | Drive rod with compensation element |
-
2014
- 2014-09-29 CN CN201420568302.4U patent/CN204215949U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992092A (en) * | 2017-05-15 | 2017-07-28 | 上海交通大学 | Breaker closing transmission mechanism |
| CN109659204A (en) * | 2017-10-12 | 2019-04-19 | 江苏高博锐电气有限公司 | A kind of lock for circuit breaker shell type bounce-proof mechanism |
| CN111492453A (en) * | 2017-12-21 | 2020-08-04 | 西门子股份公司 | Drive rod with compensation element |
| US11276991B2 (en) | 2017-12-21 | 2022-03-15 | Siemens Aktiengesellschaft | Control rod with compensation element |
| CN109637908A (en) * | 2018-12-21 | 2019-04-16 | 上海电器科学研究所（集团）有限公司 | A kind of breaker of plastic casing contact retaining mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 123 Lane 2, Huancheng East Road, Nanqiao, Fengxian District, Shanghai, 2010 Patentee after: Shanghai ABB Switch Co.,Ltd. Address before: 201400 No. 111 Fengpu Avenue, Fengxian Industrial Zone, Shanghai Patentee before: SHANGHAI GE BREAKERS CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 123 Lane 2, Huancheng East Road, Nanqiao, Fengxian District, Shanghai, 2010 Patentee after: Gaiqi switch (Shanghai) Co.,Ltd. Address before: No. 123 Lane 2, Huancheng East Road, Nanqiao, Fengxian District, Shanghai, 2010 Patentee before: Shanghai ABB Switch Co.,Ltd. Address after: No. 123 Lane 2, Huancheng East Road, Nanqiao, Fengxian District, Shanghai, 2010 Patentee after: Jiyi switch (Shanghai) Co.,Ltd. Address before: No. 123 Lane 2, Huancheng East Road, Nanqiao, Fengxian District, Shanghai, 2010 Patentee before: Gaiqi switch (Shanghai) Co.,Ltd. |