CN206225310U - A kind of isolation enclosed type jet fuse - Google Patents
A kind of isolation enclosed type jet fuse Download PDFInfo
- Publication number
- CN206225310U CN206225310U CN201621098204.4U CN201621098204U CN206225310U CN 206225310 U CN206225310 U CN 206225310U CN 201621098204 U CN201621098204 U CN 201621098204U CN 206225310 U CN206225310 U CN 206225310U
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- China
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- main frame
- porcelain piece
- enclosed type
- piece
- type jet
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Abstract
The utility model proposes a kind of isolation enclosed type jet fuse, it is related to a kind of high-voltage electric device, including main frame porcelain piece and fusing carrier, the fusing carrier is placed in inside the main frame porcelain piece, the two ends of the fusing carrier are closely connected with upper contact head and lower contact respectively, the upper contact head and lower contact are connected by insulated conductor with the fixed track usage plan insulated cable of outside, and the bottom of the main frame porcelain piece is linked closely insulation pressure piece, and lower touch spring is provided between the lower contact and insulation pressure piece.Expulsion fuse of the present utility model, with good insulating properties, weathering performance and Nai Lei levels, meet all insulation line-guiding that Utilities Electric Co. advocates, overload connecting-disconnecting function is in advanced level, mark is obvious after fuse member fusing, is easy to find, the operation stick with expulsion tube is used during operation, it is convenient and safe without arc discharge process.
Description
Technical field
The utility model is related to a kind of high-voltage electric device, especially a kind of isolation enclosed type jet fuse.
Background technology
Mesh fuse switch is a kind of lightning protected switch commonly used in power distribution network, it is adaptable to outdoor, with economical real
With, it is easy to operate the features such as.But in day-to-day operation, fuse switch occurs problems with the process of running：1st, it is resistance to
Thunder level is low；2nd, arc quenching method is single, i.e. pressure release simultaneously downwards upwards, if fault current is smaller, then will not ensure that product
Raw arc extinguishing gases can blow out electric arc；3rd, fiery phenomenon is not robbed in dynamic/static contact contact, during combined floodgate, and some fuse firmwares with it is molten
Body is not matched, and is easily come off and the type fuse of part one occurs porcelain piece cracking phenomena, and porcelain piece and ironware after cold cycling
Joint also can produce slight crack because expanding with heat and contract with cold inequality, cause operation troubles to increase, dielectric level decline；4th, frequent on-load
Operation fuse switch, causes contact starting the arc because of cutout, causes contact burning, lead to blow；5th, long-term outdoor operation,
Influenceed by wind and weather and environmental pollution, firmware, packing ring, contact oxide etch, contact resistance increase, electric conductivity reduction,
Fault rate increases in addition, construction, animal behavior etc. may all jeopardize the safe operation of fuse switch.
Utility model content
The utility model provides a kind of isolation enclosed type jet fuse, with good overload break performance and good
Good isolation circuit performance.
The utility model specifically adopts the following technical scheme that realization：
A kind of isolation enclosed type jet fuse, including main frame porcelain piece and fusing carrier, the fusing carrier are placed in the master
Inside machine porcelain piece, the two ends of the fusing carrier are closely connected with upper contact head and lower contact respectively, and the upper contact head and lower contact are equal
It is connected with the fixed track usage plan insulated cable of outside by insulated conductor, the bottom of the main frame porcelain piece is linked closely insulation pressure piece,
Lower touch spring is provided between the lower contact and insulation pressure piece.
Preferably, the insulation pressure piece is suspended on the outside of the main frame porcelain piece by flexible connection line.
Preferably, being further fixed on fitting on the outside of the main frame porcelain piece.
Preferably, the fusing carrier is fuse tube.
Preferably, the main frame porcelain piece uses integral structure.
The isolation enclosed type jet fuse that the utility model is provided, its advantage is：
1st, with good insulating properties, weathering performance and Nai Lei levels, all insulation circuit that Utilities Electric Co. advocates is met
It is oriented to；
2nd, overload connecting-disconnecting function is in advanced level；
3rd, mark is obvious after fuse member fusing, is easy to find：
It is convenient and safe without arc discharge process using the operation stick with expulsion tube when the 4th, operating.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model isolation enclosed type jet fuse normal condition；
Fig. 2 is the structure chart of the utility model isolation enclosed type jet fuse fusing state.
In figure, 1- main frame porcelain pieces；2- fusing carriers；3- upper contact heads；Contact under 4-；5- insulated conductors；6- insulation pressure pieces；7-
Lower touch spring；8- flexible connection lines；9- isolation fractures；10- fittings.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with accompanying drawing.These accompanying drawings are in the utility model is disclosed
A part for appearance, it is mainly used to illustrate embodiment, and running of the associated description of specification to explain embodiment can be coordinated former
Reason.Coordinate and refer to these contents, those of ordinary skill in the art will be understood that other possible implementation methods and this practicality are new
The advantage of type.Component in figure is not necessarily to scale, and similar element numbers are conventionally used to indicate similar component.
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
As shown in Figure 1, 2, a kind of isolation enclosed type jet fuse that the present embodiment is proposed, including the He of main frame porcelain piece 1
Fusing carrier 2, fusing carrier 2 is placed in inside main frame porcelain piece 1, and main frame porcelain piece 1 uses integral structure, and fusing carrier 2 is not exposed outside,
Main frame porcelain piece 1 is fixed on installation site by fitting 10, and the two ends of fusing carrier 2 are tight with upper contact head 3 and lower contact 4 respectively
Connection, upper contact head 3 and lower contact 4 are connected by insulated conductor 5 with the fixed track usage plan insulated cable of outside so that whole device
There is no wire, conductor exposed outside, increased the lightning protection level of circuit.Under normal condition, the bottom of main frame porcelain piece 1 is linked closely to be had absolutely
Edge pressure piece 6, is provided with lower touch spring 7 between lower contact 4 and insulation pressure piece 6, insulation pressure piece 6 is by flexible connection line 8
It is suspended on the outside of main frame porcelain piece 1；When fuse passes through short circuit current, the starting the arc of fusing carrier 2 fusing leaves isolation fracture 9, together
At present the pressure piece 6 that will insulate of touch spring 7 is gone out and is suspended from midair.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, not departing from the spirit and scope of the present utility model that appended claims are limited, in form and details
On the utility model can be made a variety of changes, be protection domain of the present utility model.
Claims (5)
1. a kind of isolation enclosed type jet fuse, including main frame porcelain piece and fusing carrier, the fusing carrier are placed in the main frame
Inside porcelain piece, it is characterised in that the two ends of the fusing carrier are closely connected with upper contact head and lower contact respectively, the upper contact head and
Lower contact is connected by insulated conductor with the fixed track usage plan insulated cable of outside, and the bottom of the main frame porcelain piece is linked closely and has insulation
Pressure piece, lower touch spring is provided between the lower contact and insulation pressure piece.
2. a kind of isolation enclosed type jet fuse according to claim 1, it is characterised in that：The insulation pressure piece
The outside of the main frame porcelain piece is suspended on by flexible connection line.
3. a kind of isolation enclosed type jet fuse according to claim 1, it is characterised in that：The main frame porcelain piece
Outside is further fixed on fitting.
4. a kind of isolation enclosed type jet fuse according to claim 1, it is characterised in that：The fusing carrier is molten
Disconnected pipe.
5. a kind of isolation enclosed type jet fuse according to claim 1, it is characterised in that：The main frame porcelain piece is adopted
Use integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621098204.4U CN206225310U (en) | 2016-09-30 | 2016-09-30 | A kind of isolation enclosed type jet fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621098204.4U CN206225310U (en) | 2016-09-30 | 2016-09-30 | A kind of isolation enclosed type jet fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206225310U true CN206225310U (en) | 2017-06-06 |
Family
ID=58782530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621098204.4U Active CN206225310U (en) | 2016-09-30 | 2016-09-30 | A kind of isolation enclosed type jet fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206225310U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107316790A (en) * | 2017-07-26 | 2017-11-03 | 河南平开科技有限公司 | A kind of fusing injection structure of the injection fuse box with anti-slow separating device |
| CN107359095A (en) * | 2017-07-26 | 2017-11-17 | 河南平开科技有限公司 | A kind of fusing injection structure being used in outdoor closed injection fuse box |
| CN109037000A (en) * | 2018-09-07 | 2018-12-18 | 佛山齐安建筑科技有限公司 | A kind of novel limiting fuse porcelain knob structure |
| CN111952134A (en) * | 2020-07-28 | 2020-11-17 | 湖南特诚成套电器有限公司 | Self-alarming injection type high-voltage fuse |
-
2016
- 2016-09-30 CN CN201621098204.4U patent/CN206225310U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107316790A (en) * | 2017-07-26 | 2017-11-03 | 河南平开科技有限公司 | A kind of fusing injection structure of the injection fuse box with anti-slow separating device |
| CN107359095A (en) * | 2017-07-26 | 2017-11-17 | 河南平开科技有限公司 | A kind of fusing injection structure being used in outdoor closed injection fuse box |
| CN107316790B (en) * | 2017-07-26 | 2019-10-25 | 河南平开科技有限公司 | It is a kind of with preventing the injection fuse box of slow separating device fusing injection structure |
| CN109037000A (en) * | 2018-09-07 | 2018-12-18 | 佛山齐安建筑科技有限公司 | A kind of novel limiting fuse porcelain knob structure |
| CN111952134A (en) * | 2020-07-28 | 2020-11-17 | 湖南特诚成套电器有限公司 | Self-alarming injection type high-voltage fuse |
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