CN207938571U - A kind of falling type switch - Google Patents
A kind of falling type switch Download PDFInfo
- Publication number
- CN207938571U CN207938571U CN201820174498.7U CN201820174498U CN207938571U CN 207938571 U CN207938571 U CN 207938571U CN 201820174498 U CN201820174498 U CN 201820174498U CN 207938571 U CN207938571 U CN 207938571U
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- fuse
- cartridge fuse
- protective cover
- insulator
- falling type
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Abstract
The utility model discloses a kind of falling type switchs, including cartridge fuse and protective cover, protective cover is equipped with above cartridge fuse, it is embedding on the left of protective cover to be set in cartridge fuse, fixed connection device is equipped on the right side of protective cover, fixed connection device is fixedly connected on by screw in protective cover, fixed connection device bottom is equipped with insulator, it is embedding at the top of insulator to be set in fixed connection device, it is equipped with operation ring above cartridge fuse, ring is embedding is set in cartridge fuse for operation.This kind of falling type switch; it is mainly used for distribution transformer short circuit or overload protection; mounted on transformer side; it can be segmented and be closed under certain condition no-load transformer and Smaller load overhead transmission line, be formed into a loop by lower connecting terminal, upper connecting terminal, fuse and external circuitry, and in transformer short-circuit or overload; electric current due to flowing through fuse increases; it has been more than the current flowing amount of fuse, fuse is made to lose tension, has indirectly made to disconnect inside falling type switch.
Description
Technical field
The utility model is related to electronic device protection technology field, specially a kind of falling type switch.
Background technology
Falling type switch is that 10kV/12KV distribution lines branch line and a kind of most common short-circuit protection of distribution transformer are opened
Close, it have the characteristics that it is economical, easy to operate, adaptation outdoor environment it is strong, be widely used in 10kV/12KV distribution lines with
Distribution transformer primary side is used as protecting and carry out equipment throwing, cut operation.
But after existing falling type switch installation, function is not closed to no-load transformer and Smaller load overhead transmission line, it is right
Protective effect is inadequate when the excess loads such as transformer, generates damage, can not equally make no-load transformer and Smaller load overhead transmission line
Fragmentary works make falling type switch that best protecting effect be not achieved, and the damages such as transformer is made to cause the paralysis of entire circuit.
So how to design a kind of falling type switch, becoming us will currently solve the problems, such as.
Utility model content
The purpose of this utility model is to provide a kind of falling type switchs, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions：A kind of falling type switch, including cartridge fuse and
Protective cover, the cartridge fuse top are equipped with protective cover, and the protective cover left side is embedding to be set in cartridge fuse, and the protective cover is right
Side is equipped with fixed connection device, and the fixed connection device is fixedly connected on by screw in protective cover, the fixed connection device bottom
It is embedding at the top of the insulator to be set in fixed connection device equipped with insulator, operation ring is equipped with above the cartridge fuse, it is described
Ring is embedding is set in cartridge fuse for operation, and the fuse bottom of the tube, which is equipped with cartridge fuse, enhances connector sleeve, and the cartridge fuse enhancing connects
Female connector is embedding to be set in cartridge fuse, and the interior insulator is equipped with circuit connection area, and the circuit connection area insertion setting exists
In insulator, lower support base is equipped on the left of the insulator, the lower support base right side is fixedly connected on insulator by screw
In, the lower support base is internally provided with hanging scroll, and the hanging scroll insertion is arranged in lower support base, is equipped with above the cartridge fuse molten
Silk cap, the fuse cap is embedding to be set in cartridge fuse, and the protective cover bottom is linked up with equipped with on-load switch operation instrument, described
On-load switch operation instrument welding hook is arranged in protective cover, and upper contact head, the upper contact head bottom are equipped with above the cartridge fuse
Portion's insertion is arranged in cartridge fuse.
Further, cartridge fuse bosom position is equipped with tie point, and tie point insertion is arranged in cartridge fuse.
Further, the cartridge fuse is internally provided with fuse, and fuse welding is arranged in tie point.
Further, the cartridge fuse is internally provided with filler, and filler insertion is arranged in cartridge fuse.
Further, the insulator surface is equipped with installation connecting element, and installation connecting element is embedding is set in insulator.
Further, the upper connecting terminal with nut is equipped with above the protective cover, and the welding of upper connecting terminal bottom is set
It sets in protective cover.
Further, the lower support base is internally provided with the lower connecting terminal with nut, and lower connecting terminal insertion setting
In lower support base.
Compared with prior art, the utility model has the beneficial effects that：This kind of falling type switch, is mainly used for distribution transformer
Device short circuit or overload protection, are mounted on transformer side, can be segmented and close under certain condition no-load transformer and small
Load overhead transmission line is formed into a loop by lower connecting terminal, upper connecting terminal, fuse and external circuitry, and in transformer short-circuit
Or when overload, the electric current due to flowing through fuse increases, and has been more than the current flowing amount of fuse, so that fuse is lost tension, indirectly
Make disconnect inside falling type switch, and the breakpoint of fuse forms electric arc in cartridge fuse, and subsequent electric arc disappears, broken fuse
Cartridge fuse is dropped out, last cartridge fuse reaches since the thrust of upper contact head and the factor of its own gravity form an apparent fracture
The effect of transformer and Smaller load overhead transmission line is protected, upper connecting terminal, lower connecting terminal and installation connecting element are connected to circuit
In, in the falling type switch when disconnecting, fuse disconnects the circuit for only disconnecting the region, other circuits will not be made to disconnect, also not
The work that can influence other circuits has achieved the effect that segmentation, and sky cannot be segmented and close by solving existing falling type switch
Carry transformer and Smaller load overhead transmission line problem.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the cartridge fuse diagrammatic cross-section of the utility model；
Fig. 3 is the insulator diagrammatic cross-section of the utility model.
In figure：1- cartridge fuses；101- tie points；102- fuses；103- fillers；2- insulators；201- installation connecting elements；
The circuit connection areas 202-；203- fixed connection devices；Support base under 3-；301- lower connecting terminals；302- hanging scrolls；303- cartridge fuses increase
Strong ties set；4- protective covers；401- upper contact heads；402- upper connecting terminals；403- operates ring；404- fuse caps；405- loads are opened
Close operation instrument hook.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of falling type switch, including cartridge fuse 1 and anti-
Shield 4,1 top of cartridge fuse are equipped with protective cover 4, and 4 left side of protective cover is embedding to be set in cartridge fuse 1, and 4 right side of protective cover is equipped with solid
Determine connector 203, fixed connection device 203 is fixedly connected on by screw in protective cover 4, and 203 bottom of fixed connection device is equipped with exhausted
Edge 2,2 top of insulator is embedding to be set in fixed connection device 203, and 1 top of cartridge fuse is equipped with operation ring 403, operates ring 403
Embedding to be set in cartridge fuse 1,1 bottom of cartridge fuse, which is equipped with cartridge fuse, enhances connector sleeve 303, and it is embedding that cartridge fuse enhances connector sleeve 303
It is set in cartridge fuse 1, insulator 2 is internally provided with circuit connection area 202, and the insertion of circuit connection area 202 is arranged in insulator 2
In, 2 left side of insulator is equipped with lower support base 3, and 3 right side of lower support base is fixedly connected on by screw in insulator 2, lower support base
3 are internally provided with hanging scroll 302, and the insertion of hanging scroll 302 is arranged in lower support base 3, and 1 top of cartridge fuse is equipped with fuse cap 404, fuse cap
404 it is embedding be set in cartridge fuse 1,4 bottom of protective cover be equipped with on-load switch operation instrument link up with 405, on-load switch operative employee
405 welding of tool hook is arranged in protective cover 4, and 1 top of cartridge fuse is equipped with upper contact head 401, and the insertion setting of 401 bottom of upper contact head exists
In cartridge fuse 1.
Further, 1 bosom position of cartridge fuse is equipped with tie point 101, and the insertion of tie point 101 is arranged in cartridge fuse
In 1, tie point 101 can be that fuse 102 is conductive.
Further, cartridge fuse 1 is internally provided with fuse 102, and the welding of fuse 102 is arranged in tie point 101, fuse
102 breakpoint forms electric arc in cartridge fuse 1, and subsequent electric arc disappears, and broken fuse 102 drops out in cartridge fuse 1.
Further, cartridge fuse 1 is internally provided with filler 103, and the insertion of filler 103 is arranged in cartridge fuse 1, filling
A kind of factor that object 103 can play a certain protective role and electric arc is formed.
Further, 2 surface of insulator is equipped with installation connecting element 201, and installation connecting element 201 is embedding is set on insulator
In 2, falling type switch is fixed on by installation connecting element 201 side of transformer.
Further, 4 top of protective cover is equipped with the upper connecting terminal 402 with nut, and 402 bottom of upper connecting terminal is welded
It is arranged in protective cover 4, upper connecting terminal 402 and extraneous circuit is fixed by nut, reach stable.
Further, lower support base 3 is internally provided with the lower connecting terminal 301 with nut, and the insertion of lower connecting terminal 301 is set
It sets in lower support base 3, lower connecting terminal 301 and extraneous circuit is fixed by nut, make lower connecting terminal 301, upper terminals
Son 402, falling type switch and external circuitry forming circuit.
Operation principle：First, lower connecting terminal 301, upper connecting terminal 402, fuse 102 and outer are made by the fixation of nut
Boundary's circuit forming circuit makes falling type switch have a certain degree with horizontal line shape when so that fuse is worked, and installing, and is convenient for work
Folding when making, during which, in transformer short-circuit or overload, the electric current due to flowing through fuse 102 increases, and has been more than fuse
102 current flowing amount, makes fuse 102 lose tension, indirectly makes to disconnect inside falling type switch, and the breakpoint of fuse 102
Electric arc is formed in cartridge fuse 1, subsequent electric arc disappears, and broken fuse 102 drops out cartridge fuse 1, and last cartridge fuse 1 is touched due to upper
First 401 thrust and the factor of its own gravity form an apparent fracture, reach protection transformer and Smaller load overhead transmission line
Effect, and lower support base 3 is for fixing falling type switch and external device, and protective cover plays a protective role, and filler is used for
Electric arc is formed, certain protective effect is also played to fuse 102.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of falling type switch, including cartridge fuse (1) and protective cover (4), it is characterised in that：It is set above the cartridge fuse (1)
There is protective cover (4), protective cover (4) left side is embedding to be set in cartridge fuse (1), is equipped with and is fixed on the right side of the protective cover (4)
Connector (203), the fixed connection device (203) are fixedly connected on by screw in protective cover (4), the fixed connection device
(203) bottom is equipped with insulator (2), and insulator (2) top is embedding to be set in fixed connection device (203), the fuse
It manages and is equipped with operation ring (403) above (1), the operation ring (403) is embedding to be set in cartridge fuse (1), cartridge fuse (1) bottom
Portion is equipped with cartridge fuse enhancing connector sleeve (303), and the cartridge fuse enhancing connector sleeve (303) is embedding to be set in cartridge fuse (1), institute
It states insulator (2) and is internally provided with circuit connection area (202), the circuit connection area (202) is embedded to be arranged in insulator (2),
Lower support base (3) is equipped on the left of the insulator (2), lower support base (3) right side is fixedly connected on insulator by screw
(2) in, the lower support base (3) is internally provided with hanging scroll (302), and the hanging scroll (302) is embedded to be arranged in lower support base (3),
Fuse cap (404) is equipped with above the cartridge fuse (1), the fuse cap (404) is embedding to be set in cartridge fuse (1), described anti-
Shield (4) bottom is equipped with on-load switch operation instrument and links up with (405), and on-load switch operation instrument hook (405) welding is set
It sets in protective cover (4), upper contact head (401), upper contact head (401) the bottom insertion setting is equipped with above the cartridge fuse (1)
In cartridge fuse (1).
2. a kind of falling type switch according to claim 1, it is characterised in that：Cartridge fuse (1) the bosom position
Equipped with tie point (101), and the embedded setting of tie point (101) is in cartridge fuse (1).
3. a kind of falling type switch according to claim 1, it is characterised in that：The cartridge fuse (1) is internally provided with fuse
(102), and fuse (102) welding is arranged in tie point (101).
4. a kind of falling type switch according to claim 1, it is characterised in that：The cartridge fuse (1) is internally provided with filling
Object (103), and the embedded setting of filler (103) is in cartridge fuse (1).
5. a kind of falling type switch according to claim 1, it is characterised in that：Insulator (2) surface is equipped with installation
Connector (201), and installation connecting element (201) is embedding is set in insulator (2).
6. a kind of falling type switch according to claim 1, it is characterised in that：Band spiral shell is equipped with above the protective cover (4)
Female upper connecting terminal (402), and the welding of upper connecting terminal (402) bottom is arranged in protective cover (4).
7. a kind of falling type switch according to claim 1, it is characterised in that：The lower support base (3) is internally provided with band
The lower connecting terminal (301) of nut, and the embedded setting of lower connecting terminal (301) is in lower support base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820174498.7U CN207938571U (en) | 2018-01-30 | 2018-01-30 | A kind of falling type switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820174498.7U CN207938571U (en) | 2018-01-30 | 2018-01-30 | A kind of falling type switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207938571U true CN207938571U (en) | 2018-10-02 |
Family
ID=63650973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820174498.7U Active CN207938571U (en) | 2018-01-30 | 2018-01-30 | A kind of falling type switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207938571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277288A (en) * | 2019-06-26 | 2019-09-24 | 安徽伊法拉电气有限公司 | A kind of fuse insulating shield |
-
2018
- 2018-01-30 CN CN201820174498.7U patent/CN207938571U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277288A (en) * | 2019-06-26 | 2019-09-24 | 安徽伊法拉电气有限公司 | A kind of fuse insulating shield |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220902 Address after: No. 208, Honghui Road, Yuhong District, Shenyang City, Liaoning Province 110000 Patentee after: Liaoning Haipurui Technology Co.,Ltd. Address before: No. 3, Xinmeng Road, Area A, Suizhong Binhai Economic Zone, Huludao City, Liaoning Province, 125200 Patentee before: LIAONING RUNZHIFENG TECHNOLOGY Co.,Ltd. |