CN201893306U - Drop-out type fuse - Google Patents
Drop-out type fuse Download PDFInfo
- Publication number
- CN201893306U CN201893306U CN2010206606065U CN201020660606U CN201893306U CN 201893306 U CN201893306 U CN 201893306U CN 2010206606065 U CN2010206606065 U CN 2010206606065U CN 201020660606 U CN201020660606 U CN 201020660606U CN 201893306 U CN201893306 U CN 201893306U
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- CN
- China
- Prior art keywords
- load electrode
- fuse
- insulator
- fusion tube
- moving contact
- 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 drop-out type fuse, which comprises an insulator, wherein the insulator is fixed below an arc-extinguishing chamber; a high-voltage static contact is arranged above the arc-extinguishing chamber; a high-voltage moving contact is arranged below the arc-extinguishing chamber; an adjusting spring is arranged below the high-voltage moving contact and is connected with the upper end of a fusion tube; the lower end of the fusion tube is connected with a load electrode which is connected with a load electrode guide plate through a connecting spring; the load electrode guide plate is fixed at the lower end of the insulator; a fuse wire is arranged in the fusion tube; the upper end of the fuse wire is connected with the high-voltage moving contact; and the lower end of the fuse wire is connected with the load electrode. The drop-out type fuse comprises the insulator, the arc-extinguishing chamber, the fusion tube and the like; and the load electrode at the lower end of the fuse wire is connected with the load electrode guide plate through the spring, i.e. the load electrode is movably connected with the load electrode plate. Compared with the prior art, the drop-out type fuse has a simple structure, is convenient for operation and is suitable for general workers to operate on site.
Description
Technical field
The utility model relates to the fuse in a kind of high-voltage electric power system.
Background technology
Fuse is a kind of protection equipment that the protection electric equipment is avoided short circuit, overload infringement.Its operation principle is when line short or overload, melt in the fusing carrier is melted formation electric arc, simultaneously the inner gas medium that produces of fusion tube resolves into gas during high arc temperature, in the fusing carrier pipe, set up very high pressure, free metal gas bleed pipe is made arc extinction outward, thus interrupting short circuit.Application number discloses a kind of " fuse switch " for the patent of invention of " 200610170973.5 ", the disclosed fuse switch wind resistance of this patent, rain, snow and high density dust ability are strong, but its complicated parts are more, complicated operation, and that uses in the middle of practice is extensive inadequately.
The utility model content
The purpose of this utility model is at above-mentioned the deficiencies in the prior art, and a kind of simple structure, fuse switch simple to operate are provided.
The technical solution of the utility model realizes in the following manner: a kind of fuse switch, comprise insulator, insulator is fixed on the arc control device below, the arc control device top is provided with the high pressure fixed contact, the arc control device below is provided with the high pressure moving contact, high pressure moving contact below is provided with regulating spring, regulating spring links to each other with the fusion tube upper end, the fusion tube lower end links to each other with load electrode, load electrode links to each other with the load electrode guide plate by connecting spring, and the load electrode guide plate is fixed on the insulator lower end, is provided with fuse in the fusion tube, the fuse upper end links to each other with the high pressure moving contact, and the fuse lower end links to each other with load electrode.
Load electrode described in the preferred version one is two semicircular electrodes.
Load electrode described in the preferred version two is that four 1/4 semicircles are formed.
The utility model is made up of parts such as insulator, arc control device, fusion tubes, link to each other by spring between the load electrode of fuse lower end and the load electrode plate, be to be to flexibly connect between load electrode and the load electrode guide plate, compared with prior art, the utility model is simple in structure, easy to operate, is suitable for common laborer's execute-in-place.And fusion tube of the present utility model is arranged on insulator inside, and the ability of resisting extraneous wind, rain, dust etc. is higher.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the elevational schematic view of Fig. 1.
Embodiment
As shown in Figure 1, a kind of fuse switch, comprise insulator 11, insulator 11 is fixed on arc control device 3 belows, arc control device 3 tops are provided with high pressure fixed contact 1, arc control device 3 belows are provided with high pressure moving contact 2, high pressure moving contact 2 belows are provided with regulating spring 4, regulating spring 4 links to each other with fusion tube 7 upper ends, it is characterized in that: fusion tube 7 lower ends link to each other with load electrode 8, and load electrode 8 links to each other with load electrode guide plate 9 by connecting spring 10, load electrode guide plate 9 is fixed on insulator 11 lower ends, be provided with fuse 5 in the fusion tube 7, fuse 5 upper ends link to each other with high pressure moving contact 2, and fuse 5 lower ends link to each other with load electrode 8.
Described load electrode 8 is two semicircular electrodes.When line short or overload, frit 6 fusings, free metal gas sprays downwards, promotes load electrode 8, and compression connects spring 10, makes between two load electrodes 8 and produces the slit, and free metal gas is discharged from this slit.
In the utility model, described load electrode 8 is that four 1/4 semicircles are formed.The circuit normal operating conditions, four load electrode 8 closely contacts under the elastic force effect that connects spring 10 form a circle.When line short or overload, free metal gas sprays downwards, promotes load electrode 8, and compression connects spring 10, makes between four load electrodes 8 and produces the slit, and free metal gas is discharged from this slit.
Claims (3)
1. fuse switch, comprise insulator (11), insulator (11) is fixed on arc control device (3) below, arc control device (3) top is provided with high pressure fixed contact (1), arc control device (3) below is provided with high pressure moving contact (2), high pressure moving contact (2) below is provided with regulating spring (4), regulating spring (4) links to each other with fusion tube (7) upper end, it is characterized in that: fusion tube (7) lower end links to each other with load electrode (8), load electrode (8) links to each other with load electrode guide plate (9) by connecting spring (10), load electrode guide plate (9) is fixed on insulator (11) lower end, be provided with fuse (5) in the fusion tube (7), fuse (5) upper end links to each other with high pressure moving contact (2), and fuse (5) lower end links to each other with load electrode (8).
2. fuse switch according to claim 1 is characterized in that: described load electrode (8) is two semicircular electrodes.
3. fuse switch according to claim 1 is characterized in that: described load electrode (8) is that four 1/4 semicircles are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206606065U CN201893306U (en) | 2010-12-15 | 2010-12-15 | Drop-out type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206606065U CN201893306U (en) | 2010-12-15 | 2010-12-15 | Drop-out type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201893306U true CN201893306U (en) | 2011-07-06 |
Family
ID=44222776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206606065U Expired - Fee Related CN201893306U (en) | 2010-12-15 | 2010-12-15 | Drop-out type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201893306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568972A (en) * | 2010-12-15 | 2012-07-11 | 河南省电力公司三门峡供电公司 | Drop fuse |
-
2010
- 2010-12-15 CN CN2010206606065U patent/CN201893306U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568972A (en) * | 2010-12-15 | 2012-07-11 | 河南省电力公司三门峡供电公司 | Drop fuse |
| CN102568972B (en) * | 2010-12-15 | 2014-11-12 | 国家电网公司 | Drop fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20111215 |