CN200969332Y - Fuse core of high breaking high-voltage drop-off fuse - Google Patents
Fuse core of high breaking high-voltage drop-off fuse Download PDFInfo
- Publication number
- CN200969332Y CN200969332Y CN 200620147923 CN200620147923U CN200969332Y CN 200969332 Y CN200969332 Y CN 200969332Y CN 200620147923 CN200620147923 CN 200620147923 CN 200620147923 U CN200620147923 U CN 200620147923U CN 200969332 Y CN200969332 Y CN 200969332Y
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- Prior art keywords
- fuse
- alloy
- voltage drop
- insulating sleeve
- fusible core
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Abstract
The utility model relates to a high-breaking high-voltage drop fuse fusible core, including an alloy fuse and a fuse lead wire disposed on two ends of the alloy fuse which is sealed and packaged in the insulating sleeve, quartz sands are filled in the insulating sleeve and around the alloy fuse, which can effectively prevent the diffusion of the arc when the fuse is fused, the electric breaking performance can increase 4-10 times than tradition, the utility model has the advantages of simple structure, convenient operation and installation, security, reliability, etc.
Description
Technical field
The utility model relates to the technical field of high-tension fuse, particularly improved fuse fusible core.
Background technology
Traditional high voltage drop-out type fuse cutout adopts a simple alloy fuse to be installed in the drop type arc-extinguishing tube, the interior arc quenching material of flame combustion arc-extinguishing tube that utilizes fusing to produce during fuse failure, make it to produce arc extinguishing gases and reach the purpose of blowing out electric arc, but in the distribution of heap(ed) capacity, the aforesaid way arc extinguishing can cause the fuse blast most probably or cause bigger short circuit accident.Because traditional fusible core can not satisfy the disjunction requirement of big capacity short circuit current, the electric breaking capacity that its maximum is born is only below 6.3KA.Fig. 1 is traditional RW3 type fusible core, and Fig. 2 is traditional RW11 type fusible core.
The utility model content
The purpose of this utility model is the weak point that overcomes traditional fusible core, proposes the high high breaking high voltage drop-out type fuse cutout fusible core of a kind of safe and reliable, easy to use, electric interrupting performance.
The purpose of this utility model is achieved by the following technical solution: high breaking high voltage drop-out type fuse cutout fusible core, include the fuse lead-in wire at alloy fuse and two ends thereof, the alloy fuse is sealed to be set in the insulating sleeve, and insulating sleeve is interior, the alloy fuse is filled with quartz sand on every side.Further, the speed that fracture draws back during for the raising fuse failure, the sleeve pipe two ends are provided with the end spring that is connected with the fuse lead-in wire.
Such design by the quartz sand arc extinguishing in the sleeve pipe, is drawn back the fusing mouth rapidly by the end spring, makes the electric interrupting performance of fuse improve 4-10 doubly, and can not cause burning, and the arc-extinguishing tube of fuse can be kept perfectly.Have advantages such as fitting operation is easy, security reliability is high, interrupting performance is high, be easy to apply.
Description of drawings
Fig. 1 is the schematic diagram of traditional RW3 type fusible core;
Fig. 2 is the schematic diagram of traditional RW11 type fusible core;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is that the utility model is loaded on the schematic diagram on the fuse.
Embodiment
Referring to Fig. 3 and Fig. 4, the fusible core of present embodiment mainly is made of alloy fuse 1, fuse lead-in wire 2, insulating sleeve 3 etc., the syndeton of alloy fuse 1 and fuse lead-in wire 2 and conventional art are roughly the same, in the middle of crucial part is that alloy fuse 1 also is loaded on by an insulating sleeve 3 sealing shrouds, and be filled with quartz sand 4 in the insulating sleeve 3, make being surrounded by quartz sand 4 sealings in fact of alloy fuse 1 on every side.During installation, the fusible core cover inserts in the drop type arc-extinguishing tube 6, and like this, during 1 fusing of alloy fuse, arc extinguishing is carried out by quartz sand 4 fully, and burning and explosion phenomenon can not take place, and the drop type arc-extinguishing tube 6 of fuse also can be kept perfectly.And the insulating sleeve end spring 5 that two ends are provided with about in the of 3, end spring 5 all is connected with the fuse lead-in wire 2 at two ends up and down and forms elastic pulling force, in case alloy fuse 1 fuses, holds the pulling force of spring 5 can draw back the mouth that fuses rapidly.The electric breaking capacity of present embodiment is more than 30KA.
Certainly, only enumerated a kind of preferred implementation here, the protection category that other is equal to, structure roughly the same all should belong to this patent repeats no more here.
Claims (2)
1, high breaking high voltage drop-out type fuse cutout fusible core, the fuse that includes alloy fuse and two ends thereof goes between, and it is characterized in that: the alloy fuse is sealed to be set in the insulating sleeve, and insulating sleeve is interior, the alloy fuse is filled with quartz sand on every side.
2, fusible core according to claim 1 is characterized in that the sleeve pipe two ends are provided with the end spring that is connected with the fuse lead-in wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620147923 CN200969332Y (en) | 2006-10-26 | 2006-10-26 | Fuse core of high breaking high-voltage drop-off fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620147923 CN200969332Y (en) | 2006-10-26 | 2006-10-26 | Fuse core of high breaking high-voltage drop-off fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200969332Y true CN200969332Y (en) | 2007-10-31 |
Family
ID=38968909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620147923 Expired - Fee Related CN200969332Y (en) | 2006-10-26 | 2006-10-26 | Fuse core of high breaking high-voltage drop-off fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200969332Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700553A (en) * | 2013-12-22 | 2014-04-02 | 广西和谐电力科技有限公司 | Arc-control device applied to drop-out fuse |
| CN106981406A (en) * | 2017-05-18 | 2017-07-25 | 中国科学院合肥物质科学研究院 | KTX impulse capacitor fuses |
-
2006
- 2006-10-26 CN CN 200620147923 patent/CN200969332Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700553A (en) * | 2013-12-22 | 2014-04-02 | 广西和谐电力科技有限公司 | Arc-control device applied to drop-out fuse |
| CN106981406A (en) * | 2017-05-18 | 2017-07-25 | 中国科学院合肥物质科学研究院 | KTX impulse capacitor fuses |
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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: 20071031 Termination date: 20101026 |