CN208861856U - A kind of insulation flash barrier and the arc-chutes with it - Google Patents
A kind of insulation flash barrier and the arc-chutes with it Download PDFInfo
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- CN208861856U CN208861856U CN201821621987.9U CN201821621987U CN208861856U CN 208861856 U CN208861856 U CN 208861856U CN 201821621987 U CN201821621987 U CN 201821621987U CN 208861856 U CN208861856 U CN 208861856U
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- isolation part
- clapboard body
- arc
- extension
- flash barrier
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Abstract
The utility model discloses a kind of insulation flash barrier, including clapboard body, the first end of clapboard body, which is provided with, protrudes into the indoor notch of arc extinguishing convenient for moving contact, and it is provided in clapboard body and protrudes into the indoor first extension isolation part of arc extinguishing, second extends isolation part, first extends isolation part, second extension isolation part is symmetrically arranged in the two sides of notch, first extends isolation part, successively successively decreased by the second end of first end to the clapboard body of clapboard body in gap between second extension isolation part, second inner side end for extending isolation part is the inclined-plane being inclined outwardly, first inner side end for extending isolation part is the inclined-plane being inclined outwardly.A kind of arc-chutes, including the first fixed plate, the second fixed plate and multiple arc extinguishing grid pieces are also disclosed in the utility model, further include insulation flash barrier as described above.The utility model is able to guide gas and is discharged in the same direction, so that electric arc be driven to move in the same direction, so that electric arc faster enters in each arc extinguishing grid pieces, improves arc quenching effect and arc extinguishing speed.
Description
Technical field
The utility model relates to field of circuit breakers more particularly to a kind of insulation flash barrier and with its arc-chutes.
Background technique
Breaker is the electric current referred to close, carry and cut-off under normal loop condition and can close, when defined
Interior carrying and the switching device for cut-offfing the electric current under abnormal loop condition.Breaker is divided into high-voltage circuitbreaker by its use scope
With low-voltage circuit breaker.Currently, arc quenching system generallys use grid formula arc quenching chamber structure in low-voltage circuit breaker.Existing low pressure
Arc-chutes in breaker by the first fixed plate, the second fixed plate, insulation flash barrier and are set to the first fixed plate, the second fixation
Multiple arc extinguishing grid pieces between plate are constituted, and when work, as moving contact and static contact separate, can be generated between moving contact and static contact
The insulation wall of electric arc, two sides generates heat under arcing and generates gas, and electric arc can magnetize arc extinguishing grid pieces to be formed with and be conducive to
The magnetic field that electric arc is drawn, so that electric arc enters in blocks of arc extinguishing grid pieces, electric arc is elongated, and arc voltage is got higher, when
Arc voltage is greater than both ends supply voltage, arc extinction.However, since existing arc-chutes are located at the outlet of two sides at disjunction position
Space is essentially identical, and gas can not be allowed to blow electric arc well and blown out toward identical direction, and then largely effect on arc extinguishing
The arc quenching effect and arc extinguishing speed of room are badly in need of solving as a result,.
Utility model content
The purpose of this utility model is that in view of the above-mentioned problems, provide a kind of insulation flash barrier and the arc-chutes with it,
To solve the problems, such as that existing arc-chutes arc quenching effect is poor, arc extinguishing is slow-footed.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of insulation flash barrier, including clapboard body, the first end of the clapboard body, which is provided with to protrude into convenient for moving contact, goes out
The indoor notch of arc, and be provided in clapboard body and protrude into the indoor first extension isolation part of arc extinguishing, the second extension isolation part, institute
State the first extension isolation part, the second extension isolation part is symmetrically arranged in the two sides of notch, the first extension isolation part, second prolong
The gap stretched between isolation part is successively successively decreased by the second end of first end to the clapboard body of clapboard body, it is described second extend every
The inner side end in exhausted portion is the inclined-plane being inclined outwardly, and the described first inner side end for extending isolation part is the inclined-plane being inclined outwardly.
As a kind of preferred embodiment of the utility model, first for covering moving contact is provided in the clapboard body
Isolation part.
As a kind of preferred embodiment of the utility model, second for covering static contact is provided in the clapboard body
Isolation part.
As a kind of preferred embodiment of the utility model, be provided in the clapboard body for by the lower part of moving contact with
The third isolation part that the lower isolation of static contact comes.
As a kind of preferred embodiment of the utility model, it is described first extend isolation part, second extend isolation part, first every
Exhausted portion, the second isolation part, third isolation part, clapboard body are structure as a whole.
A kind of arc-chutes, including the first fixed plate, the second fixed plate and be set between the first fixed plate, the second fixed plate
Multiple arc extinguishing grid pieces, further include insulation flash barrier as described above.
The beneficial effects of the utility model are that the first of the utility model insulation flash barrier extends the inner end of isolation part
The inner side end that face, second extend isolation part is the inclined-plane being inclined outwardly, and first extends isolation part and the second extension isolation
Gap between portion is successively successively decreased by the second end of first end to the clapboard body of clapboard body, and then is able to guide gas towards same
Direction discharge, so that electric arc be driven to move in the same direction, so that electric arc faster enters in each arc extinguishing grid pieces, substantially increases and goes out
Arc effect and arc extinguishing speed.
Detailed description of the invention
Fig. 1 is a kind of schematic perspective view of flash barrier that insulate；
Fig. 2 is a kind of structural schematic diagram of flash barrier that insulate；
Fig. 3 is the position distribution structural schematic diagram of insulation flash barrier and arc extinguishing grid pieces.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It can manage
Solution, embodiment described herein are used only for explaining the utility model, rather than the restriction to the utility model.
It please refers to shown in Fig. 1 to Fig. 3, Fig. 1 is a kind of schematic perspective view of flash barrier that insulate；Fig. 2 is a kind of insulation
The structural schematic diagram of flash barrier；Fig. 3 is the position distribution structural schematic diagram of insulation flash barrier and arc extinguishing grid pieces.
In this present embodiment, the first end of a kind of insulation flash barrier, including clapboard body 1, the clapboard body 1 is provided with just
Protrude into the indoor notch 2 of arc extinguishing in moving contact, and be provided in clapboard body 1 protrude into arc extinguishing it is indoor first extend isolation part 3,
Second extends isolation part 4, and the first extension isolation part 3, second extends the two sides that isolation part 4 is symmetrically arranged in notch 2, described
First extend isolation part 3, second extend isolation part 4 between gap by clapboard body 1 first end (i.e. left end in figure) to every
The second end (i.e. right end in figure) of plate ontology 1 is successively successively decreased, and the inner side end of the second extension isolation part 4 is inclined outwardly
Inclined-plane, the described first inner side end for extending isolation part 3 is the inclined-plane being inclined outwardly, and is provided with and is used in the clapboard body 1
The first isolation part 5 for covering moving contact, and is provided with the second isolation part 6 for covering static contact in clapboard body 1, it is described every
It is additionally provided with the third isolation part 7 for the lower isolation of the lower part of moving contact and static contact to come on plate ontology 1, described
One extension isolation part 3, second extends isolation part 4, the first isolation part 5, the second isolation part 6, third isolation part 7, clapboard body 1 and is
Integral structure.
Moving contact and the static contact disjunction position i.e. arrow position in Fig. 2, after disjunction, due to left at disjunction position
Hold the space of (i.e. clapboard body first end) bigger than the space of right end at disjunction position (i.e. clapboard body second end), as a result, gas
Body is flowed from the second end of clapboard body 1 to first end, and then the first end for driving electric arc towards clapboard body 1 is mobile, thus
It can rapidly enter in each arc extinguishing grid pieces 8, further, since the inner side end of the first extension isolation part 3, the second extension isolation part 4
Inner side end is the inclined-plane being inclined outwardly, thus the space on top is bigger than lower space so that gas can towards every
The second end of plate ontology 1 tilts upward flowing, so that gas is more quickly discharged, gas is avoided to concentrate in arc-chutes, from
And it can effectively extend the service life of arc-chutes, and enhance arc quenching effect.
The first of above-mentioned a kind of insulation flash barrier extends the inner end of the inner side end of isolation part 3, the second extension isolation part 4
Face is the inclined-plane being inclined outwardly, and the gap between the first extension isolation part 3 and the second extension isolation part 4 is by clapboard body 1
The second end of first end to clapboard body 1 successively successively decrease, and then be able to guide gas and be discharged in the same direction, to drive electric arc
It moves in the same direction, so that electric arc faster enters in each arc extinguishing grid pieces, substantially increases arc quenching effect and arc extinguishing speed.
The present embodiment is also disclosed a kind of arc-chutes, including the first fixed plate, the second fixed plate and be set to the first fixed plate,
Multiple arc extinguishing grid pieces 8 between second fixed plate further include insulation flash barrier as described above.
Above embodiments only elaborate the basic principles and features of the present invention, and the utility model is not by above-mentioned implementation
Example limitation, on the premise of not departing from the spirit and scope of the utility model, the present invention has various changes and changes, these
Changes and modifications are fallen within the scope of the claimed invention.The utility model requires protection scope is by appended right
Claim defines.
Claims (6)
1. a kind of insulation flash barrier, including clapboard body, the first end of the clapboard body, which is provided with, protrudes into arc extinguishing convenient for moving contact
Indoor notch, and be provided in clapboard body and protrude into the indoor first extension isolation part of arc extinguishing, the second extension isolation part, it is described
First extension isolation part, the second extension isolation part are symmetrically arranged in the two sides of notch, it is characterised in that: described first extends isolation
Gap between portion, the second extension isolation part is successively successively decreased by the second end of first end to the clapboard body of clapboard body, described
Second inner side end for extending isolation part is the inclined-plane being inclined outwardly, and the inner side end of the first extension isolation part is to lean outward
Oblique inclined-plane.
2. a kind of insulation flash barrier according to claim 1, it is characterised in that: be provided in the clapboard body for covering
First isolation part of lid moving contact.
3. a kind of insulation flash barrier according to claim 2, it is characterised in that: be provided in the clapboard body for covering
Second isolation part of lid static contact.
4. a kind of insulation flash barrier according to claim 3, it is characterised in that: be provided in the clapboard body for inciting somebody to action
The third isolation part that the lower part of moving contact and the lower isolation of static contact come.
5. a kind of insulation flash barrier according to claim 4, it is characterised in that: the first extension isolation part, second prolong
Isolation part, the first isolation part, the second isolation part, third isolation part, clapboard body is stretched to be structure as a whole.
6. a kind of arc-chutes including the first fixed plate, the second fixed plate and are set between the first fixed plate, the second fixed plate
Multiple arc extinguishing grid pieces, it is characterised in that: further include insulation flash barrier according to claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821621987.9U CN208861856U (en) | 2018-09-30 | 2018-09-30 | A kind of insulation flash barrier and the arc-chutes with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821621987.9U CN208861856U (en) | 2018-09-30 | 2018-09-30 | A kind of insulation flash barrier and the arc-chutes with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208861856U true CN208861856U (en) | 2019-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821621987.9U Active CN208861856U (en) | 2018-09-30 | 2018-09-30 | A kind of insulation flash barrier and the arc-chutes with it |
Country Status (1)
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| CN (1) | CN208861856U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036907A (en) * | 2018-09-30 | 2018-12-18 | 无锡新宏泰电器科技股份有限公司 | A kind of insulation flash barrier and the arc-chutes with it |
-
2018
- 2018-09-30 CN CN201821621987.9U patent/CN208861856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036907A (en) * | 2018-09-30 | 2018-12-18 | 无锡新宏泰电器科技股份有限公司 | A kind of insulation flash barrier and the arc-chutes with it |
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