CN206558465U - Miniature circuit breaker - Google Patents
Miniature circuit breaker Download PDFInfo
- Publication number
- CN206558465U CN206558465U CN201720336246.5U CN201720336246U CN206558465U CN 206558465 U CN206558465 U CN 206558465U CN 201720336246 U CN201720336246 U CN 201720336246U CN 206558465 U CN206558465 U CN 206558465U
- Authority
- CN
- China
- Prior art keywords
- arc
- chutes
- extinguish chamber
- guiding gutter
- housing
- Prior art date
- 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 is related to a kind of miniature circuit breaker, including housing, operating mechanism, electromagnetic system, thermo-magnetic system, arc-extinguish chamber, operating mechanism and electromagnetic system are oppositely arranged in housing, arc-chutes are formed in housing below operating mechanism and electromagnetic system, arc-extinguish chamber is arranged in the arc-chutes below electromagnetic system, thermo-magnetic system is arranged in front of arc-chutes, the arc-extinguish chamber includes multi-disc arc extinguishing grid pieces and side plate, multi-disc arc extinguishing grid pieces are placed equidistant between two side plates, multiple tracks guiding gutter is formed in inner walls in front of arc-extinguish chamber, crack between the multiple tracks guiding gutter and arc extinguishing grid pieces, which is corresponded, to be set, guiding gutter the inner is arranged on arc-extinguish chamber front end, guiding gutter outer end is extended to below operating mechanism.The crack of the utility model guiding gutter and arc-extinguish chamber is corresponded, and electric arc can quickly be delivered to arc-extinguish chamber along guiding gutter and be segmented arc extinguishing by the crack being correspondingly arranged, and guiding gutter striking speed is fast, effect is good, improves arc extinguishing efficiency.
Description
Technical field
The utility model is related to a kind of miniature circuit breaker.
Background technology
Miniature circuit breaker can produce electric arc in disjunction, and electric arc is typically separated by arc-extinguish chamber to be extinguished, existing small-sized disconnected
Striking effect before the device arc-extinguish chamber of road is not good, causes the arc quenching effect of arc-extinguish chamber bad, it is impossible to fast arc extinction, influences small-sized disconnected
The stability of road device, reduces service life.
The content of the invention
The purpose of this utility model is to solve above-mentioned technical problem there is provided a kind of arc quenching effect is high, low small-sized of temperature rise
Breaker.
To achieve the above object, the utility model uses a kind of miniature circuit breaker, including housing, operating mechanism, electromagnetic system
System, thermo-magnetic system, arc-extinguish chamber, operating mechanism and electromagnetic system are oppositely arranged in housing, below operating mechanism and electromagnetic system
Housing in form arc-chutes, arc-extinguish chamber is arranged in the arc-chutes below electromagnetic system, and thermo-magnetic system is arranged on before arc-chutes
Side, the arc-extinguish chamber includes multi-disc arc extinguishing grid pieces and side plate, and multi-disc arc extinguishing grid pieces are placed equidistant between two side plates, arc-extinguish chamber
Multiple tracks guiding gutter is formed in the inner walls in front, the crack between the multiple tracks guiding gutter and arc extinguishing grid pieces is corresponded and set
Put, guiding gutter the inner is arranged on arc-extinguish chamber front end, guiding gutter outer end is extended to below operating mechanism.
The utility model is further arranged between the arc-chutes and thermo-magnetic system be provided with above partition wall, arc-chutes
Side wall and partition wall between form the separation muscle that projection is formed on an opening, the housing at the opening, guiding gutter outer end
It is connected on the side wall above separation muscle and arc-chutes.
The utility model is further arranged to the arc-chutes and equidistantly formed on the side wall at arc-extinguish chamber rear multiple let out arc
Mouthful.
The utility model is further arranged on the housing at the arc-chutes rear set on the inside of gas outlet, gas outlet and set
Outlet grid.
The utility model is further arranged on the partition wall form a breach, and the thermo-magnetic system includes bimetallic
Piece, lower run-on tab, the lower end of bimetal leaf are connected with lower run-on tab one end, and the other end of lower run-on tab passes through breach along baffle plate
The lower section of arc-extinguish chamber is extended to the side wall below arc-chutes.
The beneficial effects of the utility model are the crack one-to-one corresponding of guiding gutter and arc-extinguish chamber, and electric arc can be fast along guiding gutter
Speed is delivered to arc-extinguish chamber and is segmented arc extinguishing by the crack being correspondingly arranged, and guiding gutter striking speed is fast, effect is good, improves this reality
With new arc extinguishing efficiency；And arc-chutes make electric arc not diffuse to by the space of partition wall one opposing seal of formation
Position beyond arc-extinguish chamber.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model specific embodiment.
Fig. 2 is the arc-extinguish chamber and base installation diagram of the utility model specific embodiment.
Embodiment
As shown in Figure 1 and Figure 2, specific embodiment of the utility model is a kind of miniature circuit breaker, including housing 1, operation machine
Structure 2, electromagnetic system 3, thermo-magnetic system 4, arc-extinguish chamber 5, operating mechanism 2 and electromagnetic system 3 are oppositely arranged in housing 1, operate machine
Arc-chutes 11 are formed in structure 2 and the housing 1 of the lower section of electromagnetic system 3, arc-extinguish chamber 5 is arranged on the arc-chutes 11 of the lower section of electromagnetic system 3
Interior, thermo-magnetic system 4 is arranged on the front of arc-chutes 11, and arc-extinguish chamber 5 includes multi-disc arc extinguishing grid pieces 51 and side plate 52, multi-disc arc extinguishing grid pieces
51 are placed equidistant between two side plates 52, and multiple tracks guiding gutter 12, multiple tracks water conservancy diversion are formed on the inwall of housing 1 in the front of arc-extinguish chamber 5
Crack between groove 12 and arc extinguishing grid pieces 51, which is corresponded, to be set, and the inner of guiding gutter 12 is arranged on the front end of arc-extinguish chamber 5, guiding gutter 12
Outer end extends to the lower section of operating mechanism 2, arc-chutes 11 equidistantly formed on the side wall at the rear of arc-extinguish chamber 5 it is multiple let out 13 mouthfuls of arc, go out
Gas outlet 14 is set on the housing at the rear of arc chamber 11, and the inner side of gas outlet 14 sets outlet grid 6, arc-chutes 11 and thermo-magnetic system 4
Between housing 1 on be provided with partition wall 15, form an opening, opening between the side wall and partition wall 15 of the top of arc-chutes 11
The separation muscle 16 of projection is formed on the housing 1 at place, the outer end of guiding gutter 12 is connected to the side wall for separating muscle 16 and the top of arc-chutes 11
On, a breach 17 is formed on partition wall 15, thermo-magnetic system 4 is included under bimetal leaf 41, lower run-on tab 42, bimetal leaf 41
End is connected with lower one end of run-on tab 42, and the other end of lower run-on tab 42 passes through breach 17 along partition wall 15 and the lower section of arc-chutes 11
Side wall extend to the lower section of arc-extinguish chamber 5.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of miniature circuit breaker, including housing, operating mechanism, electromagnetic system, thermo-magnetic system, arc-extinguish chamber, operating mechanism and electricity
Magnetic system is oppositely arranged in housing, and arc-chutes are formed in the housing below operating mechanism and electromagnetic system, and arc-extinguish chamber is arranged on
In arc-chutes below electromagnetic system, thermo-magnetic system is arranged in front of arc-chutes, it is characterised in that：The arc-extinguish chamber includes multi-disc
Arc extinguishing grid pieces and side plate, multi-disc arc extinguishing grid pieces are placed equidistant between two side plates, are formed in the inner walls in front of arc-extinguish chamber
Multiple tracks guiding gutter, the crack between the multiple tracks guiding gutter and arc extinguishing grid pieces, which is corresponded, to be set, and guiding gutter the inner, which is arranged on, goes out
Arc cover front end, guiding gutter outer end is extended to below operating mechanism.
2. miniature circuit breaker according to claim 1, it is characterised in that：It is provided between the arc-chutes and thermo-magnetic system
Formed between side wall and partition wall above partition wall, arc-chutes on the housing at an opening, the opening and form projection
Separate muscle, guiding gutter outer end is connected on the side wall separated above muscle and arc-chutes.
3. miniature circuit breaker according to claim 1 or 2, it is characterised in that：Side of the arc-chutes at arc-extinguish chamber rear
Equidistantly formed on wall and multiple let out nock.
4. miniature circuit breaker according to claim 1 or 2, it is characterised in that：Set on the housing at the arc-chutes rear
Outlet grid is set on the inside of gas outlet, gas outlet.
5. miniature circuit breaker according to claim 2, it is characterised in that：A breach is formed on the partition wall, it is described
Thermo-magnetic system includes bimetal leaf, lower run-on tab, and the lower end of bimetal leaf is connected with lower run-on tab one end, and lower run-on tab is in addition
One end extends to the lower section of arc-extinguish chamber through breach along the side wall below baffle plate and arc-chutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720336246.5U CN206558465U (en) | 2017-03-31 | 2017-03-31 | Miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720336246.5U CN206558465U (en) | 2017-03-31 | 2017-03-31 | Miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206558465U true CN206558465U (en) | 2017-10-13 |
Family
ID=60015804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720336246.5U Active CN206558465U (en) | 2017-03-31 | 2017-03-31 | Miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206558465U (en) |
-
2017
- 2017-03-31 CN CN201720336246.5U patent/CN206558465U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |