CN2508385Y - High-voltage fuse link - Google Patents
High-voltage fuse link Download PDFInfo
- Publication number
- CN2508385Y CN2508385Y CN 01264715 CN01264715U CN2508385Y CN 2508385 Y CN2508385 Y CN 2508385Y CN 01264715 CN01264715 CN 01264715 CN 01264715 U CN01264715 U CN 01264715U CN 2508385 Y CN2508385 Y CN 2508385Y
- Authority
- CN
- China
- Prior art keywords
- melt
- voltage fuse
- fuse member
- crimp head
- drainage thread
- 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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- Fuses (AREA)
Abstract
The utility model discloses a high voltage fuse link used for a high voltage fuse, and comprises a fused body made of a low melting point conducting wire. The both ends of the fused body are connected with a drainage wire, and two drainage wires are connected in a pressing way into a whole through a pressing connection head make of a copper pipe or a copper sheet. A metallurgy effect point composed of a tin-cadmium alloy small ball is welded in the middle of the fused body, and polytetrafluoroethylene material is arranged outside the fused body and the pressing connection head. The utility model overcomes the disadvantages that a general fuse link has large resistance and high power consumption, but does not have arc extinction function, and has the advantages of arc extinction, low resistance, and low power consumption.
Description
One, technical field
The utility model relates to used high-voltage fuse member in the high-tension fuse field, particularly high-tension fuse.
Two, background technology
Present widely used high-tension fuse, the fuse member in it generally are to be made of brass melt of making and the drainage thread that is crimped on the melt two ends.There is following defective in this fuse member:
1. be to make owing to melt, and the fusing point of brass and resistivity are higher, so melt resistance is big by brass.
2. the syndeton owing to melt and drainage thread is unreasonable, usually loose contact.As the 40A fuse member that Amway smeltery in Huhehaote City's uses, its crimping point can be normal in service blowing.Even generally believe the 100A fuse member of quality Beijing hydraulic and electric engineering model factory production preferably, can find during temperature rise test that its joint seriously generates heat, the aerogenesis arc-extinguishing tube can be burnt near part.Inspect the fuse member of selling on the market at random by random samples, can find that melt and drainage thread transition resistance are all very big.
3. the drainage thread cross section is generally too little.As the 200A fuse member that Gaoyang County, Hebei Jing Lian electrical apparatus factory produces, its drainage thread cross section is 3.7mm only
2, for its rated current, current density is up to 54.3A/mm
2
4. the fuse member overall resistance is excessive, thereby power consumption is very high.As a kind of rated current is arranged on the market is the fuse member of 200A, when rising to 140A, electric current will fuse, cause drainage thread blackening, arc-extinguishing tube variable color, Here it is, and the fuse member power consumption is too high, arc-extinguishing tube is overheated and lost the aerogenesis arc extinction performance during normal operation, in case the starting the arc then long-time calcination, and cause the cracked cause of fuse porcelain bushing eventually.
Three, summary of the invention
Task to be solved in the utility model is to overcome above-mentioned defective, designs the novel high-pressure fuse member that a kind of resistance is little, low in energy consumption, the aerogenesis arc extinction performance is arranged.
The technical solution of the utility model is such:
A kind of high-voltage fuse member comprises melt and drainage thread, it is characterized in that described melt is the low melting point lead, is connected with the drainage thread that copper hinge line constitutes respectively at the two ends of melt.
Described low melting point lead can be aluminum steel or terne metal line.
Be welded with the tin cadmium alloy bead that forms metallurgical effect point in the middle of the described melt.
Described melt and drainage thread are one by the crimp head crimping that copper tube or copper sheet constitute, and the crape folding has been worn in crimping.
Outside described melt and crimp head, be provided with a heat-resisting interior arc-extinguishing tube of making by polytetrafluoroethylmaterial material.
Owing to adopted above-mentioned measure, the high-voltage fuse member of the utility model has following characteristics: be melt owing to adopting the low melting point lead to replace the such materials with high melting point of brass 1), reduced the melt power consumption, (it is subjected to heat energy to produce metallurgical effect under low fault current particularly to be welded with tin cadmium alloy bead in the middle of the melt, thereby can reduce the fusion temperature of melt, improve the reliability that melt disconnects).Owing to adopted the red copper material, be pressed with the crimp head of fold, make transition resistance reduce, drainage thread density is not more than 7A/mm
2, greatly reduce the overall power consumption of fuse member, thereby make that the fuse member of the utility model can be because of the heating scaling loss.2) owing to be provided with the interior arc-extinguishing tube that polytetrafluoroethylene with heat-resisting and high temperature gas generation property (but its can in long-term work below 260 ℃) is made, the bigger injection of generation and blow out electric arc in the arc-extinguishing tube in can making on the one hand after the melt fusing starting the arc; On the other hand, interior arc-extinguishing tube also has heat-blocking action, and the heat that melt produces is scattered and disappeared by the made drainage thread conduction of copper hinge line, and then can prevent the arc-extinguishing tube heat ageing that its outer high-tension fuse is interior and lose the effect of aerogenesis arc extinguishing.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model.
Five, embodiment
A kind of high-voltage fuse member comprises the melt of being made by the wire rod of aluminum steel or terne metal line and so on 1, is welded with tin every alloy bead 3 in the middle of the melt 1.The two ends of melt 1 are crimped with the drainage thread 2 that is made of copper hinge line by crimp head 4,5 respectively.Crimp head thin copper tube of 4,5 usefulness or copper sheet are manufactured, and crimping face is wanted the crape folding 7 of waviness, to increase contact area, reduces resistance, also can strengthen tensile strength.Outside melt 1, be with the heat-resisting and interior arc-extinguishing tube 6 high temperature gas generation property by having of making of polytetrafluoroethylene.One end and the crimp head 4 of interior arc-extinguishing tube 6 fix by pin 8, its other end is unfixing, but be enclosed within outside the crimp head 5 by matched in clearance, so that during melt 1 fusing, melt 1, the crimp head 5 of disconnection and the drainage thread 2 that this end connected are blown out, thereby guarantee reliable outage.
Claims (6)
1. a high-voltage fuse member comprises melt (1) and drainage thread (2), it is characterized in that described melt (1) is the low melting point lead, is connected with the drainage thread (2) that copper hinge line constitutes respectively at the two ends of melt (1).
2. high-voltage fuse member according to claim 1 is characterized in that described low melting point lead is aluminum steel or terne metal.
3. high-voltage fuse member according to claim 1 is characterized in that being welded with the tin cadmium alloy bead (3) that forms metallurgical effect point in the middle of the described melt (1).
4. according to claim 1,2 or 3 described high-voltage fuse members, it is characterized in that described melt (1) and drainage thread (2) are one by crimp head (4, the 5) crimping that copper tube or copper sheet constitute, crape folding (7) has been worn in crimping.
5. high-voltage fuse member according to claim 4 is characterized in that outside described melt (1) and crimp head (4,5), is provided with a heat-resisting interior arc-extinguishing tube (6) of being made by polytetrafluoroethylmaterial material.
6. high-voltage fuse member according to claim 4, it is characterized in that described in an end of arc-extinguishing tube (6) and a crimp head (4) sealed type in the described crimp head (4,5) fix, its other end is enclosed within outside described another crimp head (5), is connected with gap fiting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01264715 CN2508385Y (en) | 2001-09-08 | 2001-09-08 | High-voltage fuse link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01264715 CN2508385Y (en) | 2001-09-08 | 2001-09-08 | High-voltage fuse link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2508385Y true CN2508385Y (en) | 2002-08-28 |
Family
ID=33671906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01264715 Expired - Fee Related CN2508385Y (en) | 2001-09-08 | 2001-09-08 | High-voltage fuse link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2508385Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346491A (en) * | 2013-07-04 | 2013-10-09 | 万能亿自动化科技（苏州）有限公司 | Flame retardant distribution box |
| CN107301930A (en) * | 2017-08-24 | 2017-10-27 | 谭颖 | A kind of contactor of building interior |
| CN108550508A (en) * | 2018-06-21 | 2018-09-18 | 东莞市贝特电子科技股份有限公司 | A kind of high-performance fuse and its workflow |
-
2001
- 2001-09-08 CN CN 01264715 patent/CN2508385Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346491A (en) * | 2013-07-04 | 2013-10-09 | 万能亿自动化科技（苏州）有限公司 | Flame retardant distribution box |
| CN107301930A (en) * | 2017-08-24 | 2017-10-27 | 谭颖 | A kind of contactor of building interior |
| CN108550508A (en) * | 2018-06-21 | 2018-09-18 | 东莞市贝特电子科技股份有限公司 | A kind of high-performance fuse and its workflow |
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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 |