CN206134640U - Drop -out fuse - Google Patents
Drop -out fuse Download PDFInfo
- Publication number
- CN206134640U CN206134640U CN201621200986.8U CN201621200986U CN206134640U CN 206134640 U CN206134640 U CN 206134640U CN 201621200986 U CN201621200986 U CN 201621200986U CN 206134640 U CN206134640 U CN 206134640U
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- CN
- China
- Prior art keywords
- fuse
- moving contact
- fusion tube
- shell fragment
- locating part
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- 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.)
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Abstract
The utility model relates to a drop -out fuse, including insulating support, fusion tube and fuse, insulating support's upper end is equipped with the static contact, insulating support's lower extreme is equipped with down the static contact, the first end of fusion tube is fixed with the moving contact, it establishes on last static contact to go up the moving contact card, the second end of fusion tube is fixed with down the moving contact, down the moving contact is rotationally installed under on the static contact, upward be equipped with first locating part on the moving contact, first locating part setting is in position department that the last mouth of pipe with the fusion tube corresponds, be equipped with the second locating part down on the static contact, the second locating part sets up in the position department that the lower mouth of pipe with the fusion tube corresponds, the fuse is worn to establish in the fusion tube, just the first end of fuse is fixed on last moving contact, the second of fuse end is fixed under on the moving contact, first locating part, second locating part respectively with fuse looks butt guarantees that the fuse does not contact with the fusion tube inner wall, more safe and reliable.
Description
Technical field
This utility model is related to fuse technologies field, more particularly to a kind of fuse switch.
Background technology
Fuse switch is a kind of protection equipment for protecting electric equipment from short circuit infringement excessively.Its operation principle is to work as
When line short or overload, current value exceedes the desired action current value of fusion tube Internal fuse, and fuse failure separates back pull and disappears,
Fusion tube falls in the presence of deadweight, forms an obvious isolation fracture, reaches the purpose of cut-out circuit.However, existing
Fuse switch, its fuse can be pressed on fusion tube inwall after tensing, and the frictional force between fuse and fusion tube inwall can undoubtedly increase
The fuse detached time is grown.And the fuse being pressed on fusion tube inwall for a long time is easily broken off, there is fusion tube in the case of non-faulting
Situation about dropping.
Utility model content
Based on this, it is necessary to fall for fusion tube in the case of existing fuse switch fuse disengaging time length and non-faulting
A kind of problem for falling, there is provided fuse switch of safety and reliability.
A kind of fuse switch, including insulated leg, fusion tube and fuse, the upper end of the insulated leg is provided with stationary contact
Head, the lower end of the insulated leg are provided with lower static contact, and the first end of the fusion tube is fixed with moving contact, the upper moving contact
It is fastened on upper static contact, the second end of the fusion tube is fixed with lower moving contact, and the lower moving contact is installed in rotation on down
On static contact, the upper moving contact is provided with the first locating part, and first locating part is arranged on corresponding with the upper orifice of fusion tube
Position at, the lower moving contact is provided with the second locating part, and second locating part is arranged on corresponding with the lower nozzle of fusion tube
Position at, the fuse is located in the fusion tube, and the first end of the fuse is fixed on moving contact, the fuse
The second end be fixed on lower moving contact, first locating part, the second locating part are abutted against with the fuse respectively.
Above-mentioned fuse switch, is arranged on the first locating part at position corresponding with the upper orifice of fusion tube, is arranged on
The second locating part at position corresponding with the lower nozzle of fusion tube is abutted against with fuse respectively so that the fuse being located in fusion tube
Position be restricted, it is to avoid fuse is contacted with fusion tube inwall.When line short or overload, quickly can divide after fuse failure
From safe.Fuse is not contacted with fusion tube inwall, and that effectively reduces that fuse disruption in the case of non-faulting causes that fusion tube drops can
Can property.
Wherein in one embodiment, first locating part is elastic clip.Fuse is blocked using elastic clip, reach limit
The purpose of fuse position processed.And elastic clip has certain elasticity, it is not easy to pull apart fuse when fuse is installed.
Wherein in one embodiment, the elastic clip includes the first shell fragment and the second shell fragment, and first shell fragment is consolidated
Fixed end is fixed on moving contact, and the free end of first shell fragment is extended to above the upper orifice of fusion tube, second shell fragment
Fixing end be fixed on the first shell fragment and form draw-in groove, the free end of second shell fragment is extended to above the upper orifice of fusion tube,
The fuse is connected in the draw-in groove.Draw-in groove can either limit the position of fuse, it is to avoid fuse is contacted with fusion tube inwall, and energy
It is enough that fuse is fixed on upper moving contact.
Wherein in one embodiment, the free end of first shell fragment upwardly extends to form back hook, it is to avoid be connected to card
Fuse in groove is skidded off, safe and reliable.
Wherein in one embodiment, second locating part includes the 3rd shell fragment, and the fixing end of the 3rd shell fragment is solid
It is scheduled on lower moving contact, the free end of the 3rd shell fragment is extended to below the lower nozzle of fusion tube and abutted against with the fuse.
Abut to limit the position of fuse using the 3rd shell fragment with fuse.And the 3rd shell fragment there is certain elasticity, when fuse is installed
It is not easy to pull apart fuse.
Wherein in one embodiment, second locating part also include pulling force adjusting screw, the 3rd shell fragment from
Mating holes is provided with by end, the pulling force adjusting screw is fixedly connected with the lower moving contact through after the mating holes.Turn
Pulling force adjusting screw can adjust the position of the 3rd shell fragment, so as to change the tightness of the fuse being connected on the 3rd shell fragment,
Reach the purpose for adjusting fuse pulling force.
Wherein in one embodiment, the fuse switch also includes the first screw, and first screw includes phase
Head of screw even and screw pole, the second end of the fuse are provided with lasso, and the lasso is set on screw pole, the screw pole
It is fixed on lower moving contact.Coordinated with lasso by the first screw and fuse is fixed on lower moving contact, it is easy for installation.
Wherein in one embodiment, rotation stop pad between the head of screw and lasso, is provided with.Tightening the first screw
During, fuse can be rotated with the first screw because of frictional force, be easily caused the mechanical injuries of fuse, caused fuse improper
Fracture.And be arranged on the rotation stop pad between head of screw and lasso and be prevented from fuse and rotate with the first screw, it is to avoid above-mentioned feelings
Condition occurs.
Wherein in one embodiment, in the fusion tube, expulsion tube is arranged with.In fuse failure, expulsion tube is in electric arc
The a large amount of gases of the lower generation of effect are sprayed from fusion tube, to extinguish electric arc,
Wherein in one embodiment, the insulated leg is provided with mounting bracket, be conveniently installed in electric pole or
On other positions to be installed.
Description of the drawings
Fig. 1 is the structural representation of the fuse switch described in this utility model embodiment；
Fig. 2 is the enlarged diagram at A in Fig. 1.
Description of reference numerals：
1st, insulated leg, 2, fusion tube, 3, fuse, 4, upper static contact, 5, lower static contact, 6, upper moving contact, 7, lower moving contact,
8th, the first locating part, the 9, second locating part, the 10, first screw, the 11, second screw, 12, rotation stop pad, 13, mounting bracket, 80,
First shell fragment, 80a, returns hook, the 81, second shell fragment, the 90, the 3rd shell fragment, and 91, pulling force adjusting screw.
Specific embodiment
Below embodiment of the present utility model is described in detail：
As shown in figure 1, the fuse switch described in the present embodiment, including insulated leg 1, fusion tube 2 and fuse 3, it is described
The upper end of insulated leg 1 is provided with upper static contact 4, and the lower end of the insulated leg 1 is provided with lower static contact 5, and the first of the fusion tube 2
End is fixed with moving contact 6, and the upper moving contact 6 is fastened on upper static contact 4, and the second end of the fusion tube 2 is fixed with lower moving
Contact 7, the lower moving contact 7 are hinged in lower static contact 5 by jointed shaft, and the upper moving contact 6 is provided with the first locating part
7, first locating part 7 is arranged at position corresponding with the upper orifice of fusion tube 2, and the lower moving contact 7 is provided with the second limit
Position part 8, second locating part 8 are arranged at position corresponding with the lower nozzle of fusion tube 2, and the fuse 3 is located in described molten
In pipe 2, and the first end of the fuse 3 is fixed on moving contact 6, and the second end of the fuse 3 is fixed on lower moving contact 7
On, first locating part 7, the second locating part 8 are abutted against with the fuse 3 respectively.
Above-mentioned fuse switch, is arranged on the first locating part 7 at position corresponding with the upper orifice of fusion tube 2, arranges
The second locating part 8 at position corresponding with the lower nozzle of fusion tube 2 is abutted against with fuse 3 respectively so that be located in fusion tube 2
The position of fuse 3 be restricted, it is to avoid fuse 3 is contacted with 2 inwall of fusion tube.When line short or overload, after fuse 3 fuses
Can sharp separation, it is safe.Fuse 3 is not contacted with 2 inwall of fusion tube, and the fracture of fuse 3 in the case of effectively reducing non-faulting is led
The probability for causing fusion tube 2 to drop.
In the present embodiment, first locating part 7 is elastic clip.Fuse 3 is blocked using elastic clip, reach restriction molten
The purpose of 3 positions of silk.And elastic clip has certain elasticity, it is not easy to pull apart fuse 3 when fuse 3 is installed.The elastic clip
It is fixed on upper moving contact 6 by the second screw 10.
Specifically, the elastic clip includes the first shell fragment 70 and the second shell fragment 71, and the fixing end of first shell fragment 70 is fixed
On upper moving contact 6, the free end of first shell fragment 70 is extended to above the upper orifice of fusion tube 2, second shell fragment 71
Fixing end is fixed on the first shell fragment 70 and forms draw-in groove, and the free end of second shell fragment 71 is extended on the upper orifice of fusion tube 2
Side, the fuse 3 are connected in the draw-in groove.Draw-in groove can either limit the position of fuse 3, it is to avoid fuse 3 is connect with 2 inwall of fusion tube
Touch, fuse 3 can be fixed on upper moving contact 6 again.Preferably, the free end of first shell fragment 70 upwardly extends to be formed back
Hook 70a, it is to avoid the fuse 3 being connected in draw-in groove is skidded off, safe and reliable.
In the present embodiment, the first shell fragment 70 is made using phosphor bronze, with preferable elasticity, corrosion resistance, anti-electric smelting
Weldering property and ductility, and with good machining property.Second shell fragment 71 using beryllium copper make, with fabulous elasticity,
Corrosion resistance and anti-electro-fusion welding.3rd shell fragment 80 is made using beryllium copper, with fabulous elasticity, corrosion resistance and anti-electro-fusion welding
Property.
In the present embodiment, second locating part 8 includes the 3rd shell fragment 80, and the fixing end of the 3rd shell fragment 80 is fixed
On lower moving contact 7, the free end of the 3rd shell fragment 80 is extended to below the lower nozzle of fusion tube 2 and is offseted with the fuse 3
Connect.Abut to limit the position of fuse 3 using the 3rd shell fragment 80 with fuse 3.And the 3rd shell fragment 80 there is certain elasticity, peace
It is not easy to pull apart fuse 3 during dress fuse 3.
The second locating part 8 described in the present embodiment also includes pulling force adjusting screw 81, the free end of the 3rd shell fragment 80
Mating holes is provided with, the pulling force adjusting screw 81 is fixedly connected with the lower moving contact 7 through after the mating holes.Turn is drawn
Power adjusting screw 81 can adjust the position of the 3rd shell fragment 80, so as to change the elastic of the fuse 3 being connected on the 3rd shell fragment 80
Degree, reaches the purpose for adjusting 3 pulling force of fuse.
In the present embodiment, the fuse switch also includes the first screw 9, and first screw 9 includes connected
Head of screw and screw pole, the second end of the fuse 3 are provided with lasso, and the lasso is set on screw pole, and the screw pole is solid
It is scheduled on lower moving contact 7.Coordinated with lasso by the first screw 9 and fuse 3 is fixed on lower moving contact 7, it is easy for installation.
Preferably, rotation stop pad 11 is provided between the head of screw and lasso.During the first screw 9 is tightened, melt
Silk 3 can be rotated with the first screw 9 because of frictional force, be easily caused the mechanical injuries of fuse 3, caused 3 improper fracture of fuse.
And be arranged on the rotation stop pad 11 between head of screw and lasso and be prevented from fuse 3 and rotate with the first screw 9, it is to avoid above-mentioned situation
Occur.
Further, expulsion tube (not shown) is arranged with the fusion tube 2.When fuse 3 fuses, expulsion tube is in electric arc
Effect is lower to produce the ejection from fusion tube 2 of a large amount of gases, and to extinguish electric arc, the insulated leg 1 is provided with mounting bracket 12, convenient
It is installed on electric pole or other positions to be installed.
Each technical characteristic of embodiment described above arbitrarily can be combined, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more concrete and detailed,
But therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, some deformations and improvement can also be made, these belong to
Protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be defined by claims.
Claims (10)
1. a kind of fuse switch, it is characterised in that including insulated leg, fusion tube and fuse, the upper end of the insulated leg
Upper static contact is provided with, the lower end of the insulated leg is provided with lower static contact, and the first end of the fusion tube is fixed with moving contact, institute
State moving contact to be fastened on upper static contact, the second end of the fusion tube is fixed with lower moving contact, and the lower moving contact is rotatable
Ground is arranged in lower static contact, and the upper moving contact is provided with the first locating part, and first locating part is arranged on and fusion tube
At the corresponding position of upper orifice, the lower moving contact is provided with the second locating part, and second locating part is arranged on and fusion tube
At the corresponding position of lower nozzle, the fuse is located in the fusion tube, and the first end of the fuse is fixed on moving contact
On, the second end of the fuse is fixed on lower moving contact, first locating part, the second locating part respectively with the fuse phase
Abut.
2. fuse switch according to claim 1, it is characterised in that first locating part is elastic clip.
3. fuse switch according to claim 2, it is characterised in that the elastic clip includes the first shell fragment and second
Shell fragment, the fixing end of first shell fragment are fixed on moving contact, and the free end of first shell fragment extends to the upper of fusion tube
Above the mouth of pipe, the fixing end of second shell fragment is fixed on the first shell fragment and forms draw-in groove, and the free end of second shell fragment prolongs
Extend above the upper orifice of fusion tube, the fuse is connected in the draw-in groove.
4. fuse switch according to claim 3, it is characterised in that the free end of first shell fragment is upwardly extended
Form back hook.
5. fuse switch according to claim 1, it is characterised in that second locating part includes the 3rd shell fragment,
The fixing end of the 3rd shell fragment is fixed on lower moving contact, and the free end of the 3rd shell fragment is extended under the lower nozzle of fusion tube
Described in Fang Bingyu, fuse is abutted against.
6. fuse switch according to claim 5, it is characterised in that second locating part is also adjusted including pulling force
Screw, the free end of the 3rd shell fragment are provided with mating holes, the pulling force adjusting screw through after the mating holes with it is described
Lower moving contact is fixedly connected.
7. fuse switch according to claim 1, it is characterised in that also including the first screw, first screw
Including connected head of screw and screw pole, the second end of the fuse is provided with lasso, and the lasso is set on screw pole, described
Screw pole is fixed on lower moving contact.
8. fuse switch according to claim 7, it is characterised in that be provided with rotation stop between the head of screw and lasso
Pad.
9. the fuse switch according to any one of claim 1-8, it is characterised in that be arranged with extinguishing arc in the fusion tube
Pipe.
10. the fuse switch according to any one of claim 1-8, it is characterised in that the insulated leg is provided with
Mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621200986.8U CN206134640U (en) | 2016-11-04 | 2016-11-04 | Drop -out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621200986.8U CN206134640U (en) | 2016-11-04 | 2016-11-04 | Drop -out fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206134640U true CN206134640U (en) | 2017-04-26 |
Family
ID=58578381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621200986.8U Active CN206134640U (en) | 2016-11-04 | 2016-11-04 | Drop -out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206134640U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114038725A (en) * | 2021-11-09 | 2022-02-11 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038722A (en) * | 2021-11-09 | 2022-02-11 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038721A (en) * | 2021-11-09 | 2022-02-11 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038724A (en) * | 2021-11-09 | 2022-02-11 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038723A (en) * | 2021-11-09 | 2022-02-11 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038720A (en) * | 2021-11-09 | 2022-02-11 | 广东电网有限责任公司 | Drop-out fuse |
-
2016
- 2016-11-04 CN CN201621200986.8U patent/CN206134640U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114038725A (en) * | 2021-11-09 | 2022-02-11 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038722A (en) * | 2021-11-09 | 2022-02-11 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038721A (en) * | 2021-11-09 | 2022-02-11 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038724A (en) * | 2021-11-09 | 2022-02-11 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038723A (en) * | 2021-11-09 | 2022-02-11 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038720A (en) * | 2021-11-09 | 2022-02-11 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038723B (en) * | 2021-11-09 | 2023-06-20 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038721B (en) * | 2021-11-09 | 2023-06-23 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038722B (en) * | 2021-11-09 | 2023-06-27 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038720B (en) * | 2021-11-09 | 2023-06-30 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038725B (en) * | 2021-11-09 | 2023-08-04 | 广东电网有限责任公司 | Drop-out fuse |
| CN114038724B (en) * | 2021-11-09 | 2023-08-04 | 广东电网有限责任公司 | Drop-out fuse |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |