CN208444801U - A kind of fuse switch spinning unit - Google Patents
A kind of fuse switch spinning unit Download PDFInfo
- Publication number
- CN208444801U CN208444801U CN201821098517.9U CN201821098517U CN208444801U CN 208444801 U CN208444801 U CN 208444801U CN 201821098517 U CN201821098517 U CN 201821098517U CN 208444801 U CN208444801 U CN 208444801U
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- fuse
- spring piece
- scroll spring
- fusion tube
- axis
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Abstract
The application discloses a kind of fuse switch spinning unit, including fusion tube and fuse, the fuse is located in the inner cavity of the fusion tube, the bottom end of the fusion tube is provided with lower bottom base, axis and scroll spring piece, the axis and the lower bottom base electrically conducting, the end of the scroll spring piece and the middle axis connection are equipped in the lower bottom base, the head end of the scroll spring piece is connect with the fuse, curl direction of the axis perpendicular to the scroll spring piece.When fuse operates normally, scroll spring piece is in tensional state；When fuse is blown by fault current, gradually curling extremely restores to the original state scroll spring piece under the effect of elasticity, the fuse of broken string can be accelerated to extract out out of fusion tube in the process, to accelerate the arc extinguishing process of fuse, fusion tube is avoided to burn, to improve the service life of fusion tube, guarantee the safe and stable operation of distribution line relevant device.
Description
Technical field
This application involves distribution line technical field, in particular to a kind of fuse switch spinning unit.
Background technique
Fuse switch is a kind of protective switch of the short circuit, is widely used in system for distribution network of power distribution line branch line
And distribution transformer.When on fuse by being more than the fault current of permissible value, fuse can fuse, and reach to distribution line phase
Close the protective effect of equipment.The electric arc generated when fuse failure can discharge big energy in a very short period of time, if cannot be quick
Extinguish electric arc, is easy to cause fuse fusion tube to damage or burn, the service life of fusion tube is seriously affected, thus to distribution line phase
The operation for closing equipment brings security risk.
Currently, the main arc quenching method that fuse switch uses is produced by the resistance wire of electric arc calcination fusion tube inner wall
The raw gas largely sprayed downwards blows out electric arc, while moving contact abjection is fallen on fuse.However, many years operating experience table
Bright, arc extinguishing speed when gas-blast is not sufficiently fast, and fuse abjection is fallen nor absolutely reliable, so, fortune
The accident of fusion tube is burnt in row frequent occurrence, if the mode that electric arc and fusion tube fall of blowing out is only relied on, to fusion tube and phase
The protection for closing equipment is not very reliable.
Utility model content
The application provides a kind of fuse switch spinning unit, is held with solving the arc quenching method of existing fuse switch
Easily lead to the problem of fusion tube is burnt.
The application provides a kind of fuse switch spinning unit, and fuse switch includes fusion tube and fuse, described molten
Silk is located in the inner cavity of the fusion tube, and the bottom end of the fusion tube is provided with lower bottom base, is equipped with axis and scrollwork in the lower bottom base
Spring leaf, the axis and the lower bottom base electrically conducting, the end of the scroll spring piece and the middle axis connection, the whirlpool
The head end of coil spring piece is connect with the fuse, curl direction of the axis perpendicular to the scroll spring piece.
Optionally, the lower bottom base is equipped with sleeve, and the axis and the scroll spring piece are respectively positioned in the sleeve
The bottom in portion space.
Optionally, the head end of the scroll spring piece is connect with the fuse by fixing bolt.
From the above technical scheme, a kind of fuse switch spinning unit provided by the present application, spinning unit are concentrated
In the normal work and operation that on lower bottom base, will not influence fuse.When fuse operates normally, scroll spring piece, which is in, to be drawn
Stretch state；When fuse is blown by fault current, gradually curling extremely restores to the original state scroll spring piece under the effect of elasticity,
To provide downward draft for fuse, extract the fuse acceleration of broken string out of fusion tube out, to accelerate the arc extinguishing mistake of fuse
Journey avoids fusion tube from burning, to improve the service life of fusion tube, guarantees the safe and stable operation of distribution line relevant device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the fuse switch spinning unit shown in the embodiment of the present application；
Fig. 2 is the connection schematic diagram of the axis and scroll spring piece shown in the embodiment of the present application.
Marginal data: 1- fusion tube, 101- lower bottom base, 102- sleeve；2- fuse；3- axis；4- scroll spring piece；5- is fixed
Bolt.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with attached drawing, it is right
Technical solution in the embodiment of the present application is clearly and completely described.
As depicted in figs. 1 and 2, fuse switch includes fusion tube 1 and fuse 2, wherein fuse 2 is located at the inner cavity of fusion tube 1
In, the bottom end of fusion tube 1 is provided with lower bottom base 101, is equipped with axis 3 and scroll spring piece 4, axis 3 and lower bottom base in lower bottom base 101
The end of 101 electrically conductings, scroll spring piece 4 is connect with axis 3, and the head end of scroll spring piece 4 is connect with fuse 2, and axis 3 hangs down
Directly in the curl direction of scroll spring piece 4.
Axis 3 and 101 electrically conducting of lower bottom base, for example may be provided with motor in lower bottom base 101, and make motor and axis 3
Connection, to provide driving force for axis 3.Axis 3 is used to support scrollwork through the hollow of scroll spring piece 4 for metal material
Spring leaf 4, and torque and energy storage are provided for scroll spring piece 4.
Optionally, lower bottom base 101 is equipped with sleeve 102, and axis 3 and scroll spring piece 4 are respectively positioned on 102 inner space of sleeve
Bottom, while saving 101 inner space of lower bottom base, moreover it is possible to lower bottom base 101 connect with fusion tube 1 using sleeve 102 come,
The head end of scroll spring piece 4 is connect with fuse 2 by fixing bolt 5.When installation, first axis 3 and scroll spring piece 4 are fixed on
The bottom of 102 inner space of sleeve, can be used that bolt is fixed or the modes such as inlay card, fixed form can be according to the tools of lower bottom base 101
Body structure is selected；Then the head end of scroll spring piece 4 and fuse 2 are fixedly connected using fixing bolt 5, later will
Sleeve 102 is set in the bottom end of fusion tube 1, lower bottom base 101 can be connect with fusion tube 1 and finished, later tense fuse 2, completes
The installing of fuse fuse should make in the above installation process axis 3 and lower bottom base 101 remain electrically conducting, the present embodiment
The structure of offer is easy for installation, easy to operate, practical.
In the application, spinning unit is concentrated on lower bottom base 101, will not influence the normal work and operation of fuse, when
When fuse operates normally, scroll spring piece 4 is in tensional state；When fuse 2 is blown by fault current, scrollwork bullet
Reed 4 is gradually crimped under the effect of elasticity to restoring to the original state, to provide downward draft for fuse 2, adds the fuse 2 of broken string
Speed is extracted out out of fusion tube 1, to accelerate the arc extinguishing process of fuse, fusion tube is avoided to burn, so that the service life of fusion tube is improved,
Guarantee the safe and stable operation of distribution line relevant device.
Those skilled in the art are considering specification and after practicing utility model disclosed herein, will readily occur to practical
Novel other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these
Variations, uses, or adaptations follow the general principle of the utility model and including undocumented skills of the utility model
Common knowledge or conventional techniques in art field.The description and examples are only to be considered as illustrative, the utility model
True scope and spirit are pointed out by the attached claims.
It should be understood that the utility model is not limited to the accurate knot for being described above and being shown in the accompanying drawings
Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model is only wanted by appended right
It asks to limit.
Claims (3)
1. a kind of fuse switch spinning unit, fuse switch includes fusion tube (1) and fuse (2), fuse (2) position
In the inner cavity of the fusion tube (1), which is characterized in that the bottom end of the fusion tube (1) is provided with lower bottom base (101), the bottom
Axis (3) and scroll spring piece (4), the axis (3) and the lower bottom base (101) electrically conducting are equipped in seat (101), it is described
The end of scroll spring piece (4) is connect with the axis (3), and the head end of the scroll spring piece (4) and the fuse (2) are even
It connects, curl direction of the axis (3) perpendicular to the scroll spring piece (4).
2. fuse switch spinning unit according to claim 1, which is characterized in that set on the lower bottom base (101)
Have sleeve (102), the axis (3) and the scroll spring piece (4) are respectively positioned on the bottom of the sleeve (102) inner space.
3. fuse switch spinning unit according to claim 1 or 2, which is characterized in that the scroll spring piece (4)
Head end and the fuse (2) connect by fixing bolt (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821098517.9U CN208444801U (en) | 2018-07-11 | 2018-07-11 | A kind of fuse switch spinning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821098517.9U CN208444801U (en) | 2018-07-11 | 2018-07-11 | A kind of fuse switch spinning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208444801U true CN208444801U (en) | 2019-01-29 |
Family
ID=65088676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821098517.9U Active CN208444801U (en) | 2018-07-11 | 2018-07-11 | A kind of fuse switch spinning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208444801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420465A (en) * | 2020-11-02 | 2021-02-26 | 荆门麦隆珂机器人科技有限公司 | Drop-out fuse for electric power construction |
-
2018
- 2018-07-11 CN CN201821098517.9U patent/CN208444801U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420465A (en) * | 2020-11-02 | 2021-02-26 | 荆门麦隆珂机器人科技有限公司 | Drop-out fuse for electric power construction |
| CN112420465B (en) * | 2020-11-02 | 2024-05-03 | 深圳市万高宝电力器材有限公司 | Drop-out fuse for power construction |
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