CN204497143U - A kind of high-pressure vacuum breaker - Google Patents
A kind of high-pressure vacuum breaker Download PDFInfo
- Publication number
- CN204497143U CN204497143U CN201520250950.XU CN201520250950U CN204497143U CN 204497143 U CN204497143 U CN 204497143U CN 201520250950 U CN201520250950 U CN 201520250950U CN 204497143 U CN204497143 U CN 204497143U
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- China
- Prior art keywords
- guide rod
- fixed contact
- moving contact
- contact
- arc
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Abstract
The utility model discloses a kind of high-pressure vacuum breaker, relate to high voltage electrical apparatus technical field, its technical essential is: include arc control device, quiet guide rod and dynamic guide rod is provided with in described arc control device, described quiet guide rod is provided with fixed contact, described dynamic guide rod is provided with moving contact, described dynamic guide rod and quiet guide rod are all arranged with bellows, described bellows and dynamic guide rod, the equal compact siro spinning technology of quiet guide rod, described moving contact/fixed contact offers arc block on the side towards fixed contact/moving contact, described fixed contact/moving contact offers the groove that block-shaped size is suitable with arc on the side towards moving contact/fixed contact.By arranging groove and arc block on fixed contact and moving contact, adding the area of both contacts, improve arc extinction performance and useful life, and the setting of bellows can increase the bend resistance performance of dynamic guide rod and quiet guide rod.The utility model is applicable to high-pressure vacuum breaker.
Description
Technical field
The utility model relates to high voltage electrical apparatus technical field, relates to a kind of high-pressure vacuum breaker in particular.
Background technology
In High-Voltage Electrical Appliances field, high-pressure vacuum breaker is the core component in complete equipment of high voltage switch, is the electric equipment for control and protection electric power system.Vacuum circuit-breaker mainly includes vacuum interrupter, operating mechanism and support, vacuum interrupter and operating mechanism are all arranged in frame, need the circuit access vacuum interrupter of break-make, vacuum interrupter mainly comprises the porcelain shell, fixed contact and the moving contact that play insulating effect, the moving contact of operating mechanism and vacuum interrupter is connected, control the on-off of the upper moving contact of vacuum extinction indoor, thus realize closing and turn-off current of high-pressure vacuum breaker.
But the applicant finds this high-pressure vacuum breaker in use, because moving contact and fixed contact are in the process of mutual action, moving contact can clash fixed contact, under permanent effect of impact, extremely be easy to the mutual wearing and tearing that can cause between moving contact and fixed contact, cause moving contact to reduce with the area that contacts of fixed contact, do not reach the effect of arc extinguishing, also have impact on the useful life of moving contact and fixed contact; And in the process of above-mentioned shock, dynamic guide rod and quiet guide rod are under the effect of this shock, and bending phenomenon all extremely easily occurs for both, and this more increases the mutual wearing and tearing between moving contact and fixed contact, makes moving contact reduce with the area that contacts of fixed contact.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide that a kind of arc extinction performance is good, the high-pressure vacuum breaker of long service life.
For achieving the above object, the utility model provides following technical scheme: a kind of high-pressure vacuum breaker, include arc control device, quiet guide rod and dynamic guide rod is provided with in described arc control device, described quiet guide rod is provided with fixed contact, described dynamic guide rod is provided with moving contact, described dynamic guide rod and quiet guide rod are all arranged with bellows;
Described moving contact/fixed contact offers arc block on the side towards fixed contact/moving contact, and described fixed contact/moving contact offers the groove that block-shaped size is suitable with arc on the side towards moving contact/fixed contact.
By adopting technique scheme, fixed contact and moving contact are provided with groove and arc block, by groove and arc block, thus the area contacted both can effectively adding, improve arc extinction performance and useful life, and at quiet guide rod and dynamic guide rod compact siro spinning technology bellows, thus moving contact and fixed contact are in the process of mutual action, bellows effectively can absorb the kinetic energy in moving contact and fixed contact knockout process, reduce impact between the two, the bend resistance performance of dynamic guide rod and quiet guide rod can be increased again, improve arc extinction performance good and extend long service life.
The utility model is set to further: described moving contact is rotatably connected on dynamic guide rod, and described fixed contact is rotatably connected on dynamic guide rod.
The utility model is set to further: the rotation amplitude of described fixed contact or moving contact is-3 ° to 3 °.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of high-pressure vacuum breaker of the utility model;
Fig. 2 is the workflow diagram a of a kind of high-pressure vacuum breaker of the utility model;
Fig. 3 is the workflow diagram b of a kind of high-pressure vacuum breaker of the utility model;
Fig. 4 is the workflow diagram c of a kind of high-pressure vacuum breaker of the utility model.
In figure: 1, arc control device; 2, quiet guide rod; 3, dynamic guide rod; 4, fixed contact; 5, moving contact; 6, bellows; 7, arc block; 8, groove; 9, rubber blanket.
Embodiment
Referring to figs. 1 through Fig. 4, the embodiment of a kind of high-pressure vacuum breaker of the utility model is described further.
Referring to figs. 1 through a kind of high-pressure vacuum breaker shown in Fig. 4, include arc control device 1, quiet guide rod 2 and dynamic guide rod 3 is provided with in described arc control device 1, described quiet guide rod 2 is provided with fixed contact 4, described dynamic guide rod 3 is provided with moving contact 5, described dynamic guide rod 3 and quiet guide rod 2 are all arranged with bellows 6, described bellows 6 and dynamic guide rod 3, quiet guide rod 2 all compact siro spinning technology.
Shown in Fig. 4, described moving contact 5/ fixed contact 4 offers arc block 7 on the side towards fixed contact 4/ moving contact 5, described fixed contact 4/ moving contact 5 offers the groove 8 suitable with arc block 7 shape size on the side towards moving contact 5/ fixed contact 4, by adopting technique scheme, fixed contact 4 and moving contact 5 are provided with groove 8 and arc block 7, by groove 8 and arc block 7, thus the area contacted both can effectively adding, improve arc extinction performance and useful life, and at quiet guide rod 2 and dynamic guide rod 3 compact siro spinning technology bellows 6, thus moving contact 5 and fixed contact 4 are in the process of mutual action, bellows 6 effectively can absorb moving contact 5 and the kinetic energy in fixed contact 4 knockout process, reduce impact between the two, the bend resistance performance of dynamic guide rod 3 and quiet guide rod 2 can be increased again, improve arc extinction performance good and extend long service life.
The utility model is set to further: described moving contact 5 is rotatably connected on dynamic guide rod 3, described fixed contact 4 is rotatably connected on dynamic guide rod 3, by adopting technique scheme, with reference to shown in Fig. 2, moving contact 5 with fixed contact 4 in the process of mutual action, because dynamic guide rod 3 or the as easy as rolling off a log meeting of quiet guide rod 2 bend under the effect of this shock action, make moving contact 5 in the process contacted with fixed contact 4, with reference to shown in Fig. 3, effective contact area can reduce greatly between the two, and be arranged on dynamic guide rod 3 and quiet guide rod 2 by moving contact 5 and the discriminable rotation of fixed contact 4, make moving contact 5 in the starting stage contacted with fixed contact 4, even if because dynamic guide rod 3 or quiet guide rod 2 bend, reduce with the area that contacts of fixed contact 4 to make dynamic contact, cause arc quenching effect poor, but at moving contact 5 subsequently in the process of fixed contact 4 movement, with reference to shown in Fig. 4, acted on by the mutual adaptation of groove 8 and arc block 7, make moving contact 5 by the mutual engaging of groove 8 and arc block 7, fixed contact 4 one active forces can be acted on, fixed contact 4 can be rotated under above-mentioned active force, the end face of fixed contact 4 can be contacted with the end face of moving contact 5, to reach the effect of enlarge active surface, thus it is good and extend long service life to improve arc extinction performance.
Referring to figs. 1 through shown in Fig. 4 in the utility model, can by being provided with rubber blanket 9 between dynamic guide rod 3 and moving contact 5, rubber blanket 9 is provided with between quiet guide rod 2 and fixed contact 4, what moving contact 5 can be rotated by a small margin is connected on dynamic guide rod 3, and what fixed contact 4 can rotate by a small margin is connected on quiet guide rod 2.
Be set to further with reference to the utility model shown in Fig. 2 to Fig. 4: the rotation amplitude of described fixed contact 4 or moving contact 5 is-3 ° to 3 ° (namely fixed contact 4, the moving contact 5 rotating angle respectively on quiet guide rod 2, dynamic guide rod 3 is within 3 °), the rotation amplitude of fixed contact 4 or moving contact 5 is unsuitable excessive, when the positive and negative rotation amplitude of fixed contact 4 or moving contact 5 exceeds 3 °, in the process just likely contacted with fixed contact 4 at moving contact 5, groove 8 and arc block 7 can not well fasten, and easily cause dynamic guide rod 3 or quiet guide rod 2 that bending phenomenon occurs.
Shown in Fig. 4, rubber blanket 9 by bonding connection between dynamic guide rod 3 and moving contact 5 or between quiet guide rod 2 and fixed contact 4.
Below be only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. a high-pressure vacuum breaker, include arc control device, in described arc control device, be provided with quiet guide rod and dynamic guide rod, described quiet guide rod is provided with fixed contact, described dynamic guide rod is provided with moving contact, it is characterized in that: described dynamic guide rod and quiet guide rod are all arranged with bellows;
Described moving contact/fixed contact offers arc block on the side towards fixed contact/moving contact, and described fixed contact/moving contact offers the groove that block-shaped size is suitable with arc on the side towards moving contact/fixed contact.
2. a kind of high-pressure vacuum breaker according to claim 1, is characterized in that: described moving contact is rotatably connected on dynamic guide rod, and described fixed contact is rotatably connected on dynamic guide rod.
3. a kind of high-pressure vacuum breaker according to claim 2, is characterized in that: the rotation amplitude of described fixed contact or moving contact is-3 ° to 3 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520250950.XU CN204497143U (en) | 2015-04-23 | 2015-04-23 | A kind of high-pressure vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520250950.XU CN204497143U (en) | 2015-04-23 | 2015-04-23 | A kind of high-pressure vacuum breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204497143U true CN204497143U (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520250950.XU Expired - Fee Related CN204497143U (en) | 2015-04-23 | 2015-04-23 | A kind of high-pressure vacuum breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204497143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109326485A (en) * | 2018-09-13 | 2019-02-12 | 西安交通大学 | Arc-chutes structure of contact terminal and the method for determining synthetic test loop transient voltage waveform |
-
2015
- 2015-04-23 CN CN201520250950.XU patent/CN204497143U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109326485A (en) * | 2018-09-13 | 2019-02-12 | 西安交通大学 | Arc-chutes structure of contact terminal and the method for determining synthetic test loop transient voltage waveform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20160423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |