CN204632712U - A kind of fuse switch fusing carrier fusion tube - Google Patents
A kind of fuse switch fusing carrier fusion tube Download PDFInfo
- Publication number
- CN204632712U CN204632712U CN201520211356.XU CN201520211356U CN204632712U CN 204632712 U CN204632712 U CN 204632712U CN 201520211356 U CN201520211356 U CN 201520211356U CN 204632712 U CN204632712 U CN 204632712U
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- fuse
- tube
- grey
- fusing carrier
- fuse switch
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Abstract
The utility model provides a kind of fuse switch fusing carrier fusion tube, it is characterized in that, comprises grey vulcanized fiber tube and is wrapped in the epoxy resin impregnated glass fiber outside grey vulcanized fiber tube, and wherein, the exhaust end of described grey vulcanized fiber tube is provided with stepped hole.Compared with prior art, the beneficial effects of the utility model are that structure is simple, easily process, improve the connecting-disconnecting function of fuse.
Description
Technical field
The utility model relates to fuse, is directly involved in the fusing carrier fusion tube design of fuse switch.
Background technology
On distribution transformer high-pressure side and distribution branch circuit, fuse switch is used as the short-circuit protection of transformer and circuit, overload protection and load current and divides, closes, and is a kind of outdoor high-voltage protective device of indispensability.It has economy, easy to operate, adapt to the features such as outdoor environment is strong, be widely used in distribution line and distribution transformer primary side as protection with carry out equipment throwing, cut the use of operation.
Common fuse switch fusing carrier is made up of fusion tube, upper and lower copper casting, fuse cap and lower hinge.Its operation principle is: penetrated by fuse in fusing carrier, one end fuse cap seals, the other end is strained and is connected to the lower hinge place of fusing carrier, is then incorporated in the pedestal of fuse switch by whole fusing carrier, makes whole fusing carrier and lower hinge, pedestal form the dead point form of double leval jib; When circuit produces overcurrent, due to the spring release pressure of fuse lower end tension at hinge place, overheated fuse melt is broken and forms fracture generation electric arc, and the blow-out material in fusion tube carries out blow-out owing to crossing thermal evaporation generation high pressure arc-extinguishing gas equally, simultaneously, due to fuse break after impulse force promoted the dead point of quadric chain, by gravity, fusing carrier is fallen from fuse switch pedestal along hinge, circuit is disconnected and forms enough fractures, excision faulty section circuit or faulty equipment.
In recent years along with economic development, growing industrial and agricultural development needs and living standards of the people must improve constantly, and is multiplied to the demand of electric energy, and the conveying capacity of current China electrical network is obviously not enough, power cuts to limit consumption phenomenon happens occasionally, therefore imperative to the further increase-volume of electrical network.But after electrical network increase-volume, the problem of conventional fuse connecting-disconnecting function deficiency highlights day by day, and head it off is very urgent.
Summary of the invention
The purpose of this utility model is to provide a kind of fuse switch fusing carrier fusion tube, and it can significantly improve the connecting-disconnecting function of fuse while additionally not increasing parts.
In order to achieve the above object, the utility model provides a kind of fuse switch fusing carrier fusion tube, it is characterized in that, comprises grey vulcanized fiber tube and is wrapped in the epoxy resin impregnated glass fiber outside grey vulcanized fiber tube, wherein, the exhaust end of described grey vulcanized fiber tube is provided with stepped hole.
Preferably, multiple cylindrical holes that described stepped hole is not waited by diameter form.
More preferably, the diameter of described multiple cylindrical holes reduces from the exhaust end of grey vulcanized fiber tube successively to the other end.
Compared with prior art, the beneficial effects of the utility model are that structure is simple, easily process, improve the connecting-disconnecting function of fuse.
Accompanying drawing explanation
Fig. 1 is fuse switch structural representation of the present utility model
Fig. 2 is fuse switch fusing carrier fusion tube schematic diagram of the present utility model
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment
As shown in Figure 2, for fuse switch fusing carrier fusion tube schematic diagram of the present utility model, described fuse switch fusing carrier fusion tube, comprise grey vulcanized fiber tube 4 and epoxy resin impregnated glass fiber 5, epoxy resin impregnated glass fiber 5 is wrapped in outside grey vulcanized fiber tube 4, wherein, the exhaust end of described grey vulcanized fiber tube 4 is provided with stepped hole 6.Multiple cylindrical holes that described stepped hole 6 is not waited by diameter form.The diameter of described multiple cylindrical holes reduces from the exhaust end of grey vulcanized fiber tube 4 successively to the other end.
During installation, as shown in Figure 1, after the two ends up and down of grey vulcanized fiber tube 4 are crimped together with upper copper casting and lower copper casting respectively, be wrapped in outside its surface with epoxy resin impregnated glass fiber 5, form the sealed composite fusion tube of high strength; Fuse is penetrated in sealed composite fusion tube, one end fuse cap seals, and the other end is strained and connected hinge, forms fusing carrier 2, then fusing carrier 2 and hinge are installed in the pedestal 1 of fuse switch, make whole fusing carrier and hinge, pedestal form the dead point form of four-bar linkage structure.
When circuit produces overcurrent, due to the spring release pressure of fuse lower end tension at hinge place, overheated fuse melt is broken and forms fracture generation electric arc, and the blow-out material in fusion tube carries out blow-out owing to crossing thermal evaporation generation high pressure arc-extinguishing gas equally, simultaneously, due to fuse break after impulse force promoted the dead point of quadric chain, by gravity, the pedestal of fusing carrier from fuse switch is fallen along hinge, circuit is disconnected and forms enough fractures, excision faulty section circuit or faulty equipment.When short circuit interruption, due to the existence of stepped hole, the high pressure arc-extinguishing gas produced in fusion tube can be discharged with extinguish arcs more rapidly, significantly improves the connecting-disconnecting function of fuse.
Claims (3)
1. a fuse switch fusing carrier fusion tube, it is characterized in that, comprise grey vulcanized fiber tube (4) and be wrapped in the epoxy resin impregnated glass fiber (5) in grey vulcanized fiber tube (4) outside, wherein, the exhaust end of described grey vulcanized fiber tube (4) is provided with stepped hole (6).
2. fuse switch fusing carrier fusion tube as claimed in claim 1, is characterized in that, multiple cylindrical holes that described stepped hole (6) is not waited by diameter form.
3. fuse switch fusing carrier fusion tube as claimed in claim 2, it is characterized in that, the diameter of described multiple cylindrical holes reduces from the exhaust end of grey vulcanized fiber tube (4) successively to the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211356.XU CN204632712U (en) | 2015-04-09 | 2015-04-09 | A kind of fuse switch fusing carrier fusion tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211356.XU CN204632712U (en) | 2015-04-09 | 2015-04-09 | A kind of fuse switch fusing carrier fusion tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204632712U true CN204632712U (en) | 2015-09-09 |
Family
ID=54051712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520211356.XU Active CN204632712U (en) | 2015-04-09 | 2015-04-09 | A kind of fuse switch fusing carrier fusion tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204632712U (en) |
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2015
- 2015-04-09 CN CN201520211356.XU patent/CN204632712U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |