CN216288164U - Vacuum circuit breaker - Google Patents
Vacuum circuit breaker Download PDFInfo
- Publication number
- CN216288164U CN216288164U CN202122999873.6U CN202122999873U CN216288164U CN 216288164 U CN216288164 U CN 216288164U CN 202122999873 U CN202122999873 U CN 202122999873U CN 216288164 U CN216288164 U CN 216288164U
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- rotating shaft
- isolation
- vacuum
- vacuum interrupter
- contacts
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Abstract
The utility model relates to a vacuum circuit breaker, which comprises a bracket, a rotating shaft, an isolation rotating shaft and a plurality of moving contacts arranged on the isolation rotating shaft, a plurality of static contacts, a plurality of vacuum interrupter, the support includes two backup pads, two curb plates, the fixed plate, be provided with a plurality of support piece between two curb plates, a plurality of static contacts set up respectively on a plurality of support piece, a plurality of vacuum interrupter's one end sets up respectively on a plurality of static contacts, the pivot rotates and sets up between two curb plates, be provided with a plurality of driving medium with a plurality of vacuum interrupter matched with in the pivot respectively, be provided with the pull rod with a plurality of driving medium linkage complex on a plurality of vacuum interrupter's the other end, the cover is equipped with the spring on the pull rod, be provided with the ground connection backup pad between two backup pads, be provided with the copper bar in the ground connection backup pad, be provided with respectively on the copper bar and keep apart the static contact with a plurality of moving contact matched with. The utility model has the advantages of simple structure, compact structure, stable and reliable performance and convenient assembly.
Description
Technical Field
The utility model relates to a vacuum circuit breaker.
Background
The vacuum circuit breaker is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; the arc extinguishing device has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, and is relatively popularized in power distribution networks. The vacuum circuit breaker is an indoor power distribution device in a 3-10 kV and 50Hz three-phase alternating-current system, can be used for protecting and controlling electrical equipment in industrial and mining enterprises, power plants and transformer substations, is particularly suitable for use places requiring no oil, less maintenance and frequent operation, and can be arranged in a middle cabinet, a double-layer cabinet and a fixed cabinet to be used for controlling and protecting high-voltage electrical equipment. The existing vacuum circuit breaker is unreasonable in structural design, adopts a split type structural design, and is complex and not compact in structure. And the vacuum circuit breaker has the defects of unreliable performance, inconvenient assembly and larger volume.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides the vacuum circuit breaker which is simple in structure, compact in structure, stable and reliable in performance and convenient and fast to assemble.
In order to achieve the above purpose, the present invention adopts a vacuum circuit breaker, which comprises a support, a rotating shaft, an isolating rotating shaft, a plurality of moving contacts arranged on the isolating rotating shaft, a plurality of static contacts, and a plurality of vacuum arc-extinguishing chambers, wherein the support comprises two supporting plates, two side plates respectively arranged on the two supporting plates, and a fixing plate arranged between the two side plates, a plurality of supporting members are arranged between the two side plates, the plurality of static contacts are respectively arranged on the plurality of supporting members, one ends of the plurality of vacuum arc-extinguishing chambers are respectively arranged on the plurality of static contacts, the rotating shaft is rotatably arranged between the two side plates, the rotating shaft is respectively provided with a plurality of transmission members matched with the plurality of vacuum arc-extinguishing chambers, the other ends of the plurality of vacuum arc-extinguishing chambers are provided with pull rods in linkage fit with the plurality of transmission members, springs are sleeved on the pull rods, and a grounding supporting plate is arranged between the two supporting plates, the grounding support plate is provided with a copper bar, the copper bar is respectively provided with an isolation static contact matched with the plurality of moving contacts, and the plurality of moving contacts are respectively provided with an isolation flexible connection.
The beneficial effect of above-mentioned structure is: the static contact and the vacuum arc extinguish chamber are integrated on the supporting piece, so that the static contact and the vacuum arc extinguish chamber can be assembled on the two side plates in a modularized mode, the assembly is more convenient, the moving contact and the isolation rotating shaft are integrated on the two supporting plates, the two side plates are installed on the two supporting plates, the assembly of the vacuum circuit breaker can be completed, and the vacuum circuit breaker is simple in structural design and more convenient to assemble. Therefore, the vacuum circuit breaker has the advantages of simple structure, compact structure, stable and reliable performance and convenient and fast assembly.
Particularly, a limit baffle is arranged at one end of the side plate corresponding to the isolation rotating shaft. The limiting baffle can play a limiting role in the isolation rotating shaft, can ensure that the isolation rotating shaft can reliably act, and is favorable for improving the working reliability of the vacuum circuit breaker.
Particularly, the other end of the isolation rotating shaft is provided with a movable matching piece exposed outside the supporting plate. The isolating rotating shaft is provided with a movable matching piece matched with the inflating cabinet, so that the vacuum circuit breaker and the inflating cabinet can be assembled conveniently.
Particularly, the both ends of ground connection backup pad on be provided with the joint piece respectively, two backup pads on be provided with joint piece matched with card hole respectively, joint piece block in the card downthehole, and constitute the joint cooperation of ground connection backup pad and two backup pads. The grounding support plate is connected with the two support plates in a clamping matching mode, so that the grounding support plate and the two support plates are convenient to assemble, and the assembly is more convenient.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is an exploded view of an embodiment of the present invention.
Detailed Description
As shown in fig. 1 and 2, an embodiment of the present invention is a vacuum circuit breaker, including a bracket 10, a rotating shaft 11, an isolating rotating shaft 12, a plurality of moving contacts 13 disposed on the isolating rotating shaft 12, a plurality of static contacts 14, and a plurality of vacuum arc-extinguishing chambers 15, where the bracket 10 includes two supporting plates 101, two side plates 102 disposed on the two supporting plates 101, respectively, and a fixing plate 103 disposed between the two side plates 102, a plurality of supporting members 16 are disposed between the two side plates 102, the plurality of static contacts 14 are disposed on the plurality of supporting members 16, respectively, one end of each of the plurality of vacuum arc-extinguishing chambers 15 is disposed on each of the plurality of static contacts 14, the rotating shaft 11 is rotatably disposed between the two side plates 102, the rotating shaft 11 is provided with a plurality of transmission members 17 matched with the plurality of vacuum arc-extinguishing chambers 15, the other end of each of the plurality of vacuum arc-extinguishing chambers 15 is provided with a pull rod 151 in linkage fit with the plurality of transmission members 17, and the pull rod 151 is sleeved with a spring 18, a grounding support plate 19 is arranged between the two support plates 101, a copper bar 20 is arranged on the grounding support plate 19, the copper bar 20 is respectively provided with an isolation static contact 21 matched with the plurality of moving contacts 13, and the plurality of moving contacts 13 are respectively provided with an isolation flexible connection 22. A limit baffle 23 is arranged at one end of the side plate 102 corresponding to the isolation rotating shaft 12. The limiting baffle can play a limiting role in the isolation rotating shaft, can ensure that the isolation rotating shaft can reliably act, and is favorable for improving the working reliability of the vacuum circuit breaker. The other end of the isolating rotating shaft 12 is provided with a movable matching piece 24 exposed outside the supporting plate 101. The isolating rotating shaft is provided with a movable matching piece matched with the inflating cabinet, so that the vacuum circuit breaker and the inflating cabinet can be assembled conveniently. The both ends of ground connection backup pad 19 on be provided with joint piece 191 respectively, two backup pads 101 on be provided with joint piece 191 matched with card hole 1011 respectively, joint piece 191 block in calorie hole 1011, and constitute the joint cooperation of ground connection backup pad 19 and two backup pads 101. The grounding support plate is connected with the two support plates in a clamping matching mode, so that the grounding support plate and the two support plates are convenient to assemble, and the assembly is more convenient.
The static contact and the vacuum arc extinguish chamber are integrated on the supporting piece, so that the static contact and the vacuum arc extinguish chamber can be assembled on the two side plates in a modularized mode, the assembly is more convenient, the moving contact and the isolation rotating shaft are integrated on the two supporting plates, the two side plates are installed on the two supporting plates, the assembly of the vacuum circuit breaker can be completed, and the vacuum circuit breaker is simple in structural design and more convenient to assemble. Therefore, the vacuum circuit breaker has the advantages of simple structure, compact structure, stable and reliable performance and convenient and fast assembly.
Claims (4)
1. The utility model provides a vacuum circuit breaker, includes support, pivot, isolation pivot, sets up a plurality of moving contacts, a plurality of static contacts, a plurality of vacuum interrupter in keeping apart the pivot, its characterized in that: the bracket comprises two supporting plates, two side plates respectively arranged on the two supporting plates, and a fixing plate arranged between the two side plates, a plurality of supporting pieces are arranged between the two side plates, the plurality of static contacts are respectively arranged on the plurality of supporting pieces, one end of each vacuum arc-extinguishing chamber is respectively arranged on the plurality of static contacts, the rotating shaft is rotatably arranged between the two side plates, the rotating shaft is respectively provided with a plurality of transmission parts matched with the plurality of vacuum arc-extinguishing chambers, the other ends of the plurality of vacuum arc-extinguishing chambers are provided with pull rods in linkage fit with the plurality of transmission parts, a spring is sleeved on the pull rod, a grounding support plate is arranged between the two support plates, a copper bar is arranged on the grounding support plate, the copper bar is respectively provided with an isolation static contact matched with the moving contacts, and the moving contacts are respectively provided with an isolation flexible connection.
2. Vacuum interrupter according to claim 1, characterized in that: and a limiting baffle is arranged at one end of the side plate corresponding to the isolation rotating shaft.
3. Vacuum interrupter according to claim 1 or 2, characterized in that: and a movable matching piece exposed outside the supporting plate is arranged at the other end of the isolation rotating shaft.
4. Vacuum interrupter according to claim 1 or 2, characterized in that: the both ends of ground connection backup pad on be provided with the joint piece respectively, two backup pads on be provided with joint piece matched with card hole respectively, joint piece block in the card downthehole, and constitute the joint cooperation of ground connection backup pad and two backup pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122999873.6U CN216288164U (en) | 2021-11-27 | 2021-11-27 | Vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122999873.6U CN216288164U (en) | 2021-11-27 | 2021-11-27 | Vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216288164U true CN216288164U (en) | 2022-04-12 |
Family
ID=81041894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122999873.6U Active CN216288164U (en) | 2021-11-27 | 2021-11-27 | Vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216288164U (en) |
-
2021
- 2021-11-27 CN CN202122999873.6U patent/CN216288164U/en active Active
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