CN203631363U - Load switch arc extinguishing grid mechanism - Google Patents
Load switch arc extinguishing grid mechanism Download PDFInfo
- Publication number
- CN203631363U CN203631363U CN201320791067.2U CN201320791067U CN203631363U CN 203631363 U CN203631363 U CN 203631363U CN 201320791067 U CN201320791067 U CN 201320791067U CN 203631363 U CN203631363 U CN 203631363U
- Authority
- CN
- China
- Prior art keywords
- arc extinguishing
- load switch
- extinguishing grid
- moving contact
- arc
- 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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a load switch arc extinguishing grid mechanism which is simple in structure, reasonable in structure, and capable of effectively preventing a load switch from losing use functions finally due to fusion welding of a moving contact and an arc extinguishing device as the moving contact collides with the arc extinguishing device. The load switch arc extinguishing grid mechanism comprises the moving contact, a static contact, and a bus conducting rod hinged with the moving contact. The load switch arc extinguishing grid mechanism further comprises a mounting seat hinged with the static contact and multiple arc extinguishing grid pieces mounted in slots of the mounting seat. The multiple arc extinguishing grid pieces are copper-tungsten alloy pieces which are symmetric bilaterally. Each of the multiple arc extinguishing grid pieces is provided with an arc part, and an arc extinguishing port is formed below the arc part. The opening range L of each arc extinguishing port is broader than the opening range 1 of the moving contact. The load switch arc extinguishing grid mechanism is applicable to the load switch cabinet field.
Description
Technical field
The utility model relates to a kind of on-load switch arc-chute mechanism that can be applicable to loading switch cabinet field.
Background technology
At present, sub-load switch on market is due to the shortage of arc-control device technology, cause the dynamic and static contact of on-load switch in the time cut-offfing load current, easily produce long high-temperature electric arc, finally burn out whole contact system, the serious break performance that reduces on-load switch, even can burn switchgear; Also there is on the market a part of arc-control device, but its structural design is unreasonable, in interrupting process, between moving contact and arc-control device, easily produce collision, add the restriction of production cost, existing technique and material, no matter be in the problem of switch monolithic conductive, or melting welding usually occurs for conducting rod and arc-control device on moving contact, and then on-load switch being lost in the problem that uses function, all there is more defect in prior art; Only between guaranteed moving contact and arc-control device, there is enough gaps, in interrupting process, do not come in contact each other, and in the situation that arc-control device can deflect from the electric arc between dynamic and static contact, between guarantee moving contact and arc-control device, there is not Welding Phenomena.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, aim to provide a kind of simple in structure, reasonable in design, can effectively prevent that described moving contact and described arc-control device from bumping, and then cause moving contact and arc-control device melting welding, finally cause on-load switch to lose the on-load switch arc-chute mechanism that uses function.
The technical scheme that the utility model adopts is: the utility model comprise moving contact, fixed contact and with the hinged bus conductive rod of described moving contact, described on-load switch arc-chute mechanism also comprises with the hinged mount pad of fixed contact and is arranged on the some arc extinguishing grid pieces on described mount pad slot, described arc extinguishing grid pieces is symmetrical copper-tungsten sheet, on each described arc extinguishing grid pieces, be equipped with curved portions and below described curved portions, all have arc extinguishing mouth, opening apart from L of described arc extinguishing mouth is greater than opening apart from l of described moving contact.
Further, the surface of described arc extinguishing grid pieces and described fixed contact is all electroplate with silver layer.
The beneficial effects of the utility model are: because the utility model comprises moving contact, fixed contact and with the hinged bus conductive rod of described moving contact, described on-load switch arc-chute mechanism also comprises with the hinged mount pad of fixed contact and is arranged on the some arc extinguishing grid pieces on described mount pad slot, described arc extinguishing grid pieces is symmetrical copper-tungsten sheet, on each described arc extinguishing grid pieces, be equipped with curved portions and below described curved portions, all have arc extinguishing mouth, opening apart from L of described arc extinguishing mouth is greater than opening apart from l of described moving contact, the surface of described arc extinguishing grid pieces and described fixed contact is all electroplate with silver layer, so the utility model not only can further improve the monolithic conductive of switch, and can effectively prevent that described moving contact and described arc-control device from bumping, and then cause moving contact and arc-control device melting welding, on-load switch is lost and used function, the design of described curved portions has improved overall arc quenching effect more in addition.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprise moving contact 1, fixed contact 2 and with the hinged bus conductive rod 3 of described moving contact 1, described on-load switch arc-chute mechanism also comprises with the hinged mount pad 4 of fixed contact 2 and is arranged on the some arc extinguishing grid pieces 5 on described mount pad 4 slots, described arc extinguishing grid pieces 5 is symmetrical copper-tungsten sheet, on each described arc extinguishing grid pieces 5, be equipped with curved portions 51 and below described curved portions 51, all have arc extinguishing mouth 52, opening apart from L53 of described arc extinguishing mouth 52 is greater than opening apart from l54 of described moving contact 1; Described arc extinguishing grid pieces 5 is all electroplate with silver layer with the surface of described fixed contact 2.
Specific works principle: in the time that on-load switch closes a floodgate, described moving contact 1 inserts described fixed contact 2, first passes through described arc extinguishing grid pieces 5; In the time of on-load switch separating brake, described moving contact 1 leaves described fixed contact 2, finally by crossing arc extinguishing grid pieces 5.Therefore, no matter on-load switch closes a floodgate or separating brake, and electric arc always produces between described moving contact 1 end and arc extinguishing grid pieces 5.
The utility model can be applicable to inflate loading switch cabinet field.
Claims (2)
1. an on-load switch arc-chute mechanism, comprise moving contact (1), fixed contact (2) and with the hinged bus conductive rod of described moving contact (1) (3), it is characterized in that: described on-load switch arc-chute mechanism also comprises with the hinged mount pad of fixed contact (2) (4) and is arranged on the some arc extinguishing grid pieces (5) on described mount pad (4) slot, some described arc extinguishing grid pieces (5) are symmetrical copper-tungsten sheet, on each described arc extinguishing grid pieces (5), be equipped with curved portions (51) and all have arc extinguishing mouth (52) in the below of described curved portions (51), opening apart from L(53 of described arc extinguishing mouth (52)) be greater than the opening apart from l(54 of described moving contact (1)).
2. on-load switch arc-chute according to claim 1 mechanism, is characterized in that: described arc extinguishing grid pieces (5) is all electroplate with silver layer with the surface of described fixed contact (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320791067.2U CN203631363U (en) | 2013-12-05 | 2013-12-05 | Load switch arc extinguishing grid mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320791067.2U CN203631363U (en) | 2013-12-05 | 2013-12-05 | Load switch arc extinguishing grid mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203631363U true CN203631363U (en) | 2014-06-04 |
Family
ID=50817816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320791067.2U Expired - Fee Related CN203631363U (en) | 2013-12-05 | 2013-12-05 | Load switch arc extinguishing grid mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203631363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161940A (en) * | 2015-08-06 | 2015-12-16 | 益和电气集团股份有限公司 | Bus connector |
-
2013
- 2013-12-05 CN CN201320791067.2U patent/CN203631363U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161940A (en) * | 2015-08-06 | 2015-12-16 | 益和电气集团股份有限公司 | Bus connector |
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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: 20140604 Termination date: 20171205 |