CN206806278U - High-breaking miniature breaker - Google Patents
High-breaking miniature breaker Download PDFInfo
- Publication number
- CN206806278U CN206806278U CN201720616729.0U CN201720616729U CN206806278U CN 206806278 U CN206806278 U CN 206806278U CN 201720616729 U CN201720616729 U CN 201720616729U CN 206806278 U CN206806278 U CN 206806278U
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- China
- Prior art keywords
- arc
- static contact
- chutes
- elongated end
- contact
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Abstract
It the utility model is related to a kind of high-breaking miniature breaker,Including housing,Operating mechanism,Electromagnetic system,Arc quenching system,Moving contact,Static contact,Described arc quenching system includes arc-chutes,Run-on tab,Described run-on tab includes left elongated end,Right elongated end,The curved transition sections being connected between left elongated end and right elongated end,Described left elongated end is arranged in arc-chutes,Right elongated end spot welding is connected on the lower end of static contact,The upper end of static contact is extended in binding post,One end of the yoke of described electromagnetic system extends towards the bending of arc-chutes direction and forms a striking portion,The afterbody in striking portion is extended in arc-chutes,Formed with a striking passage between described striking portion and run-on tab,The striking passage is connected to arc-chutes and static contact,Between moving contact,Positioned at moving contact with being provided with arc piece at static contact contact site both sides in described housing.The utility model has the advantages of simple in construction, stable and reliable for performance, arc quenching effect is good.
Description
Technical field
The utility model relates to breaker technical field, and in particular to a kind of miniature circuit breaker.
Background technology
Miniature circuit breaker be applied to exchange 50/60Hz rated voltage 230/400V, the overload of rated current to 63A circuits and
Short-circuit protection is used, and infrequently operation conversion that can also be under normal circumstances as circuit is used.Be widely used in for industry,
Commercially, the various places such as high-rise and residential houses.In use, can be produced between the moving contact and static contact of miniature circuit breaker
Raw electric arc, so as to which miniature circuit breaker needs to carry out arc extinguishing design, caused electric arc is avoided so that circuit continues to turn on；It is however, existing
With the presence of miniature circuit breaker arc quenching system it is complicated, arc quenching effect is poor the defects of, so as to the miniature circuit breaker exist point
Cutting capacity is weaker, the insecure defect of performance.
The content of the invention
The defects of the purpose of this utility model is to overcome prior art, there is provided it is a kind of it is simple in construction, stable and reliable for performance,
The good high-breaking miniature breaker of arc quenching effect.
To achieve the above object, the utility model uses a kind of high-breaking miniature breaker, including housing, operating mechanism,
Electromagnetic system, arc quenching system, moving contact, static contact, described arc quenching system include arc-chutes, run-on tab, described run-on tab
Including left elongated end, right elongated end, the curved transition sections being connected between left elongated end and right elongated end, described left elongated end
It is arranged in arc-chutes, right elongated end spot welding is connected on the lower end of static contact, and the upper end of static contact is extended in binding post,
One end of the yoke of described electromagnetic system extends towards the bending of arc-chutes direction and forms a striking portion, the afterbody in striking portion
Extend in arc-chutes, formed with a striking passage between described striking portion and run-on tab, the striking passage, which is connected to, to go out
Between arc chamber and static contact, moving contact, positioned at moving contact with being provided with static contact contact site both sides in described housing
Arc piece.
The beneficial effect of said structure is：Shape between striking portion and run-on tab on the yoke of the high-breaking miniature breaker
Into there is striking passage, electric arc can be rapidly introduced into arc-chutes along striking passage, and the arc transition portion on run-on tab can incite somebody to action
Electric arc is rapidly introduced into arc-chutes, greatly enhances the arc quenching effect of the arc quenching system, and flash barrier also can be by electric arc baffle to going out
In arc chamber, be advantageous to shorten flashover distance, improve the arc quenching effect of the miniature circuit breaker.And the miniature circuit breaker has structure
Simply, the advantages of stable and reliable for performance, high breaking capacity.
Especially, the upper end of described static contact has a bending Access Division, and bending clamping is corresponded on described housing
Buckling groove is provided with portion, described bending Access Division is through binding post and is arranged in buckling groove, forms static contact and shell
The clamping engagement of body.Static contact is connected with housing by the way of clamping, and run-on tab spot welding is connected on static contact and forms one
Body formula structure, so as to which run-on tab disposably can be fully enclosed in housing with static contact, substantially increase the dress of the miniature circuit breaker
With efficiency.
Brief description of the drawings
Fig. 1 is the utility model embodiment structural representation.
Embodiment
As shown in figure 1, the utility model embodiment is a kind of high-breaking miniature breaker, including housing 10, operating mechanism
11st, electromagnetic system 12, arc quenching system 20, moving contact 13, static contact 14.Described arc quenching system 20 includes arc-chutes 21, striking
Plate 22, described run-on tab 22 include left elongated end 221, right elongated end 222, are connected to left elongated end 221 and right elongated end 222
Between curved transition sections 223.Described left elongated end 221 is arranged in arc-chutes 21, and the right spot welding of elongated end 222 is connected to quiet
On the lower end of contact 14, the upper end of static contact 14 is extended in binding post 15, and the one of the yoke 121 of described electromagnetic system 12
End is towards the direction bending extension of arc-chutes 21 and forms a striking portion 122, and the afterbody in striking portion 122 extends in arc-chutes 21
It is interior, it is connected to arc extinguishing formed with a striking passage 200, the striking passage 200 between described striking portion 122 and run-on tab 22
Between room 21 and static contact 14, moving contact 15, positioned at moving contact 13 and the contact site both sides of static contact 14 in described housing 10
Place is provided with arc piece 23.The upper end of described static contact 14 has a bending Access Division 141, right on described housing 10
Answer and buckling groove 101 is provided with bending Access Division 141, described bending Access Division 141 is through binding post 15 and is arranged on card
In access slot 101, the clamping engagement of static contact 14 and housing 10 is formed.Static contact is connected with housing by the way of clamping, and is drawn
Arc plate spot welding, which is connected on static contact, is integrally formed formula structure, so as to which run-on tab can disposably be fully enclosed housing with static contact
It is interior, substantially increase the efficiency of assembling of the miniature circuit breaker.
Can formed with striking passage, electric arc between striking portion and run-on tab on the yoke of the high-breaking miniature breaker
It is rapidly introduced into along striking passage in arc-chutes, and electric arc can be rapidly introduced into arc-chutes by the arc transition portion on run-on tab,
The arc quenching effect of the arc quenching system is greatly enhanced, and flash barrier in electric arc baffle to arc-chutes, will can also be advantageous to shorten arcing
Distance, improve the arc quenching effect of the miniature circuit breaker.And the miniature circuit breaker have it is simple in construction, stable and reliable for performance, high
The advantages of breaking capacity.
Claims (2)
1. a kind of high-breaking miniature breaker, including housing, operating mechanism, electromagnetic system, arc quenching system, moving contact, static contact,
It is characterized in that：Described arc quenching system include arc-chutes, run-on tab, described run-on tab include left elongated end, right elongated end,
The curved transition sections being connected between left elongated end and right elongated end, described left elongated end are arranged in arc-chutes, right extension
End points weldering is connected on the lower end of static contact, and the upper end of static contact is extended in binding post, the yoke of described electromagnetic system
One end towards the bending of arc-chutes direction extend and formed a striking portion, the afterbody in striking portion is extended in arc-chutes, described
Striking portion and run-on tab between formed with a striking passage, the striking passage be connected to arc-chutes and static contact, moving contact
Between, positioned at moving contact with being provided with arc piece at static contact contact site both sides in described housing.
2. high-breaking miniature breaker according to claim 1, it is characterised in that：The upper end of described static contact has one
Individual bending Access Division, correspond on described housing and buckling groove is provided with bending Access Division, described bending Access Division is through connecing
Line terminals and it is arranged in buckling groove, forms the clamping engagement of static contact and housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720616729.0U CN206806278U (en) | 2017-05-27 | 2017-05-27 | High-breaking miniature breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720616729.0U CN206806278U (en) | 2017-05-27 | 2017-05-27 | High-breaking miniature breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206806278U true CN206806278U (en) | 2017-12-26 |
Family
ID=60743329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720616729.0U Active CN206806278U (en) | 2017-05-27 | 2017-05-27 | High-breaking miniature breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206806278U (en) |
-
2017
- 2017-05-27 CN CN201720616729.0U patent/CN206806278U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |