CN2160994Y - Drop off type high-voltage fuse - Google Patents
Drop off type high-voltage fuse Download PDFInfo
- Publication number
- CN2160994Y CN2160994Y CN 93214009 CN93214009U CN2160994Y CN 2160994 Y CN2160994 Y CN 2160994Y CN 93214009 CN93214009 CN 93214009 CN 93214009 U CN93214009 U CN 93214009U CN 2160994 Y CN2160994 Y CN 2160994Y
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- contact
- utility
- tube assembly
- fusion tube
- model
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- Expired - Fee Related
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Abstract
The utility model relates to a falling type high-voltage fuse which comprises an insulated porcelain post, a fusion tube assembly, an upper bracket and a lower bracket. The utility model is characterized in that an open-close device is arranged on a tripping mechanism on the lower end of the fusion tube assembly. The open-close device and the lower end of the fusion tube assembly are respectively connected with an upper contact head attaching device and a lower contact head attaching device with surface contact. An anti-rotation stable structure is arranged between the upper bracket or the lower bracket and the insulated porcelain post. The utility model has the advantages of reasonable structure, reliable work and stable performance. The utility model solves the problem that the high-voltage fuse used at present has filament breakage, arc pulling, ablation, etc. The utility model can be widely used for branched lines of high-voltage networks.
Description
The utility model relates to a kind of high-voltage explosion fuse.
In the high pressure electric line, the present RW type high-tension fuse that generally uses produces the contact resistance heating and causes switch damage phenomenon because contact is a contact shape; Fuse directly bears mechanical load and tends to make fuse elongation, breaks fuse during combined floodgate sometimes, and impulse current also can cause molten elongation sometimes, thereby makes moving contact lose pulling force and thread off; Hold concurrently fixed supported mechanism and conducting electricity of upper and lower support in one; Electrical nodes is many, and caloric value is big, and oxidative phenomena is serious, the support shakiness; During fuse failure,, during initial falling, tend to produce the arcing phenomenon, also can cause phase fault when serious because deadweight is fallen by fusion tube.Though some improvement technology to RW type high-tension fuse are arranged now, often only trickle improvement are done in the part, and do not relate to the overall process of above-mentioned defective.
The purpose of this utility model is to provide the high-voltage explosion fuse of a kind of rational in infrastructure, reliable operation, stable performance.
The utility model comprises insulation porcelain knob, fusion tube assembly and upper and lower support, the tripping mechanism that it is characterized in that fusion tube assembly upper end is provided with closing device, closing device links to each other with upper and lower contact laminating apparatus with face way of contact respectively with fusion tube assembly lower end, has the anti-rotation rock-steady structure between upper and lower support and the insulation porcelain knob.
Above-mentioned high-voltage explosion fuse, its closing device is made up of the pin rod seat on location hole, pin rod, spring and the movable contact of tripping mechanism.
Above-mentioned high-voltage explosion fuse is provided with the stationary contact headstock of being with ear in the pilot hole that its contact laminating apparatus is a suspension bracket, stationary contact headstock two ends are respectively equipped with fixed contact and asbestos spring base and spring.
Above-mentioned high-voltage explosion fuse, the anti-rotation rock-steady structure between its upper and lower support and the insulation porcelain knob are meant that insulation porcelain knob two ends open loop groove clamps upper and lower holder combination and forms.
The utility model is because contact has the face contact form, and make by the contact laminating apparatus and to produce excellent contact between contact, thereby eliminated contact resistance, simultaneously, upper and lower support and insulation have the anti-rotation rock-steady structure between the porcelain knob thereby electrical nodes few, as a shunt of electric current, caloric value is few, does not damage the distribution element; The fusion tube upper end is provided with closing device, and during the fuse operate as normal, because insert in the location hole of suspension bracket the pin rod end, the mechanical load that fuse is born greatly reduces; When fuse failure, fuse has lost pulling force, the pin rod spring promotes the pin rod seat on the moving contact, make the pin rod end break away from the suspension bracket location hole, meanwhile the spring in the laminating apparatus of fusion tube lower end promotes fusion tube, make between contact to disengage fast, thereby when making the contact disjunction, realize quick-break arc extinguishing function.Therefore, the utlity model has the characteristics of rational in infrastructure, reliable operation, stable performance.
Below in conjunction with accompanying drawing the utility model embodiment is done to describe:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the A-A enlarged diagram of the utility model embodiment;
Fig. 3 is the B-B enlarged diagram of the utility model embodiment;
Comprise insulation porcelain knob (1) with reference to Fig. 1-3 the utility model, fusion tube assembly (28) and upper and lower support (2,42), on the tripping mechanism (4) of fusion tube assembly (28) upper end, be provided with closing device (17), closing device (17) and fusion tube assembly (28) lower end respectively with upper and lower two contact laminating apparatus (14,38) link to each other, have the anti-rotation rock-steady structure between upper and lower support (2,42) and the insulation porcelain knob (1).The closing device of the utility model embodiment (17) is by the location hole (20) of tripping mechanism (4), pin rod (21), and the pin rod seat (22) on spring (18) and the moving contact (15) is formed.The laminating apparatus of present embodiment (14,38) is for being provided with the stationary contact headstock (23,45) of band ear in the pilot hole of suspension bracket (27), stationary contact headstock (23,45) two ends are respectively equipped with fixed contact (13,46) and asbestos spring base (16), spring (26,37).Anti-rotation rock-steady structure between the said upper and lower support (2,42) of present embodiment and the insulation porcelain knob (1) combines for insulation porcelain knob (1) two ends open loop groove clamps upper and lower support (2,42).Present embodiment contact (13,15), (43,46) adopt the biplane way of contact respectively; During operate as normal, current path removes outside upper and lower support (2, the 42) shunting, and predominating path is by wire clamp (3), copper pigtail cable (19), dynamic and static contact (15,13), fusion tube assembly (28), dynamic and static contact (43,46), wire clamp (48) constitutes path.When fuse failure, the thrust that spring (18) overcomes suspension bracket (27) inner spring (26) makes pin rod (21) break away from location hole (20), moving contact (15) is separated with fixed contact (13), meanwhile, under the effect of spring (37), promote moving contact (43) and quicken to rotate, make between contact (13 and 15,46 and 43) disconnect rapidly, eliminate electric arc, thereby realize quick-break arc extinguishing function.
Claims (4)
1, a kind of high-voltage explosion fuse, comprise the insulation porcelain knob, fusion tube assembly and upper and lower support, the tripping mechanism that it is characterized in that fusion tube assembly upper end is provided with closing device, closing device and fusion tube assembly lower end have the contact laminating apparatus that face contacts and link to each other with upper and lower two respectively, and upper and lower support has the anti-rotation rock-steady structure between the porcelain knob with insulating.
2, high-voltage explosion fuse as claimed in claim 1 is characterized in that closing device is made up of the pin rod seat on location hole, pin rod, spring and the moving contact of tripping mechanism.
3, high-voltage explosion fuse as claimed in claim 1 is characterized in that laminating apparatus is the stationary contact headstock that the band ear is set in the pilot hole of suspension bracket, and stationary contact headstock two ends are respectively equipped with fixed contact and asbestos spring base and spring.
4, high-voltage explosion fuse as claimed in claim 1 is characterized in that the combination that clamps of annular groove that the anti-rotation rock-steady structure is offered for insulation porcelain knob two ends and upper and lower support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93214009 CN2160994Y (en) | 1993-05-22 | 1993-05-22 | Drop off type high-voltage fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93214009 CN2160994Y (en) | 1993-05-22 | 1993-05-22 | Drop off type high-voltage fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2160994Y true CN2160994Y (en) | 1994-04-06 |
Family
ID=33794931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93214009 Expired - Fee Related CN2160994Y (en) | 1993-05-22 | 1993-05-22 | Drop off type high-voltage fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2160994Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590815A (en) * | 2016-03-14 | 2016-05-18 | 刘洪年 | Insulation protection arc-extinguishing drop-out fuse switch |
| CN111785595A (en) * | 2020-08-04 | 2020-10-16 | 贵州电网有限责任公司 | High-voltage drop fuse quick release device |
-
1993
- 1993-05-22 CN CN 93214009 patent/CN2160994Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590815A (en) * | 2016-03-14 | 2016-05-18 | 刘洪年 | Insulation protection arc-extinguishing drop-out fuse switch |
| CN111785595A (en) * | 2020-08-04 | 2020-10-16 | 贵州电网有限责任公司 | High-voltage drop fuse quick release device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |