CN202025678U - Vacuum load switch - Google Patents
Vacuum load switch Download PDFInfo
- Publication number
- CN202025678U CN202025678U CN201120155281XU CN201120155281U CN202025678U CN 202025678 U CN202025678 U CN 202025678U CN 201120155281X U CN201120155281X U CN 201120155281XU CN 201120155281 U CN201120155281 U CN 201120155281U CN 202025678 U CN202025678 U CN 202025678U
- Authority
- CN
- China
- Prior art keywords
- load switch
- vacuum load
- main shaft
- upper contact
- main shafts
- 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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Abstract
The utility model discloses a vacuum load switch, which comprises a housing, main shafts and three make-and-break mechanisms, the main shafts are rotatably fitted on the housing, the three make-and-break mechanisms are arranged on the housing and respectively used for connecting or disconnecting three-phase electrodes, each make-and-break mechanism comprises an upper contact, a grounding contact, a knife and a lower outlet part, the knife can be connected with or disconnected from the upper contact, the lower outlet part is connected with the knife, and the knife is firmly fitted on the circumference of the man shaft. Because the main shafts are insulated and the knives are wrapped in the insulated main shafts, the insulating property of the vacuum load switch is better, the distances between the electrodes are small, the requirement for the electric clearance can be met as well, and the size is greatly reduced; in addition, by means of arc-extinguishing grid structures, the arc-extinguishing capability of the vacuum load switch can be greatly enhanced; because the upper contacts are fixed on the housing through insulators, not only can the insulating strength of the vacuum load switch be enhanced, but also the structural strength of the vacuum load switch can be enhanced; and the insulating strength of the vacuum load switch also can be enhanced by the structures of the joints between the lower outlet parts and the knives, which are positioned in the insulated main shafts.
Description
Technical field
The utility model relates to power equipment, the switch block in particularly a kind of high voltage electric power equip ment.
Background technology
On-load switch is a kind of device for switching between circuit breaker and isolating switch, has simple arc-control device, can cut off rated load electric current and certain overload current, be usually used in playing the distribution and the control action of electric energy in looped network distribution such as industrial and mining enterprises, residential quarters and the terminal distribution.
There is following shortcoming in traditional on-load switch: 1) because each interpolar need satisfy electric clearance, cause the volume of switch bigger, institute takes up space bigger, is unfavorable for installing; 2) there are shortcomings such as insulation property are poor, action stability difference in the on-load switch of some miniaturizations that occurred in the market, has certain defective in electric power system.
At above-mentioned deficiency, need existing on-load switch is improved, when making it satisfy the miniaturization requirement, strengthen its every performance.
Summary of the invention
In view of this, the utility model provides a kind of vacuum load switch, this on-load switch integrates isolation, close close, three kinds of functions of ground connection, be used for the sulphur hexafloride circuit breaker cabinet, be arranged in the insulation main shaft by disconnecting link, strengthen its insulation property, both can dwindle the distance of each interpolar three-phase electrode, reach and reduce volume of switch, the purposes such as insulation property of enhancing switch.
Vacuum load switch of the present utility model, the main shaft that comprises framework, is rotatably assorted with framework and be arranged at three on off mechanisms that are respectively applied for three-phase electrode conducting or disconnection on the framework, described on off mechanism comprises upper contact head, grounding contact, be used for the upper contact head conducting or disconnect disconnecting link and be connected to following outlet part on the disconnecting link, disconnecting link and main shaft are along circumferential secure fit, described spindle insulating, main shaft is surrounded on outside the disconnecting link.
Further, described upper contact head is provided with arc-chute;
Further, described upper contact head is fixedly installed on the framework by insulator;
Further, the described part of outlet down is positioned at the insulation main shaft with the link position of disconnecting link.
The beneficial effects of the utility model: vacuum load switch of the present utility model, comprise framework, with the framework main shaft that is rotatably assorted and three on off mechanisms that are respectively applied for three-phase electrode conducting or disconnection that are arranged on the framework, on off mechanism comprises upper contact head, grounding contact, be used for and upper contact head conducting or disconnection disconnecting link and the following outlet part that is connected on the disconnecting link, disconnecting link and main shaft are along circumferential secure fit, because spindle insulating and disconnecting link are enclosed in the insulation main shaft, make that the insulation property of switch are better, each anode-cathode distance is very little also to satisfy the electric clearance requirement, and volume dwindles greatly; In addition, can greatly strengthen the arc extinguishing ability of switch by the arc-chute structure, by insulator upper contact head is fixedly mounted on the framework, both can increase the dielectric strength of switch, also can increase the structural strength of switch, the structure that the link position of following outlet part and disconnecting link is positioned at the insulation main shaft also can increase the dielectric strength of switch.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated, as shown in the figure: the vacuum load switch of present embodiment, comprise framework 1, with the framework main shaft 3 that is rotatably assorted and three on off mechanisms that are respectively applied for three-phase electrode conducting or disconnection that are arranged on the framework 1, described on off mechanism comprises upper contact head 2, grounding contact 5, be used for and upper contact head 2 conductings or disconnection disconnecting link 4 and the following outlet part 6 that is connected on the disconnecting link 4, disconnecting link 4 and the circumferential secure fit in main shaft 3 edges, described main shaft 3 insulation, main shaft 3 is surrounded on outside the disconnecting link 4, because three-phase electrode is surrounded by the insulation main shaft, it is better to make that switch gets insulation property, and the very little requirement that also can satisfy electric clearance of interelectrode distance, so the volume of switch dwindles greatly.
As further improvement in the technical proposal, described upper contact head 2 is provided with arc-chute 7, adopts arc-chute structure extinguish arcs, and the arc extinguishing ability is strong.
As further improvement in the technical proposal, described upper contact head 2 is fixedly installed on the framework 1 by insulator 8, to increase the structural strength and the dielectric strength of upper contact head.
As further improvement in the technical proposal, described outlet part 6 down is positioned at insulation main shaft 3 with the link position of disconnecting link 4, to increase dielectric strength.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. vacuum load switch, the main shaft (3) that comprises framework (1), is rotatably assorted with framework and be arranged at three on off mechanisms that are respectively applied for three-phase electrode conducting or disconnection on the framework (1), described on off mechanism comprises upper contact head (2), grounding contact (5), be used for and upper contact head (2) conducting or disconnect disconnecting link (4) and be connected to following outlet partly (6) on the disconnecting link (4), disconnecting link (4) and the circumferential secure fit in main shaft (3) edge, it is characterized in that: described main shaft (3) insulation, main shaft (3) is surrounded on outside the disconnecting link (4).
2. vacuum load switch according to claim 1 is characterized in that: described upper contact head (2) is provided with arc-chute (7).
3. vacuum load switch according to claim 1 and 2 is characterized in that: described upper contact head (2) is fixedly installed on the framework (1) by insulator (8).
4. vacuum load switch according to claim 1 and 2 is characterized in that: described outlet part (6) down is positioned at insulation main shaft (3) with the link position of disconnecting link (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120155281XU CN202025678U (en) | 2011-05-16 | 2011-05-16 | Vacuum load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120155281XU CN202025678U (en) | 2011-05-16 | 2011-05-16 | Vacuum load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202025678U true CN202025678U (en) | 2011-11-02 |
Family
ID=44850622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120155281XU Expired - Fee Related CN202025678U (en) | 2011-05-16 | 2011-05-16 | Vacuum load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202025678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500675A (en) * | 2013-10-10 | 2014-01-08 | 益和电气集团股份有限公司 | Arc-extinguishing device suitable for switch cabinet |
-
2011
- 2011-05-16 CN CN201120155281XU patent/CN202025678U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500675A (en) * | 2013-10-10 | 2014-01-08 | 益和电气集团股份有限公司 | Arc-extinguishing device suitable for switch cabinet |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20200516 |