CN206349330U - High-breaking miniature breaker - Google Patents
High-breaking miniature breaker Download PDFInfo
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- CN206349330U CN206349330U CN201720050557.5U CN201720050557U CN206349330U CN 206349330 U CN206349330 U CN 206349330U CN 201720050557 U CN201720050557 U CN 201720050557U CN 206349330 U CN206349330 U CN 206349330U
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- arc
- tab
- run
- flash barrier
- chutes
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Abstract
The utility model is related to a kind of high-breaking miniature breaker, including shell, operating system, electric heating system, arc quenching system, moving contact, static contact, shell includes pedestal and upper lid, arc quenching system includes arc-chutes, run-on tab, upper flash barrier, lower flash barrier, being constituted between upper flash barrier and lower flash barrier has the arc being connected with an arc-chutes chamber, a plurality of convex tendon is provided with the upper surface of lower flash barrier, a plurality of groove is provided with the lower surface of upper flash barrier, arc leading angle is provided with static contact, and the tail end bending of arc leading angle is extended in arc-chutes, the bending striking portion that a basic configuration is in inverted U is provided with run-on tab, and bending striking portion is located at the underface of moving contact, one end bending of run-on tab is extended in arc-chutes, the other end of run-on tab extends and is connected on the bimetal leaf of electric heating system towards the bending of electric heating system direction.The utility model has the advantages that simple in construction, stable and reliable for performance, high breaking capacity.
Description
Technical field
The utility model is related to breaker technical field, and in particular to a kind of high-breaking miniature breaker.
Background technology
At present, miniature circuit breaker is applied to exchange 50/60Hz rated voltage 230/400V, rated current to 63A circuits
Overload and short-circuit protection are used, and can also be used under normal circumstances as the infrequently operation conversion of circuit.It is widely used in use
In various places such as industry, business, high-rise and residential houses.In use, the moving contact and static contact of miniature circuit breaker
Between can produce electric arc so that miniature circuit breaker need carry out arc extinguishing design, it is to avoid the electric arc of generation cause circuit continue turn on；
However, there is the poor defect of complicated, arc quenching effect in the arc quenching system of existing miniature circuit breaker, so that the miniature circuit breaker
Have that breaking capacity is weaker, the insecure defect of performance.
The content of the invention
The purpose of this utility model be to overcome the defect of prior art there is provided one kind it is simple in construction, stable and reliable for performance,
Production efficiency is high and is easy to the miniature circuit breaker of automated production.
To achieve the above object, the utility model use a kind of high-breaking miniature breaker, including shell, operating system,
Electric heating system, arc quenching system, moving contact, static contact, shell include pedestal and upper lid, and being constituted between pedestal and upper lid has an appearance
Put chamber, described operating system, electric heating system, arc quenching system, moving contact, static contact are separately positioned in accommodating cavity, described
Arc quenching system include arc-chutes, correspondence moving contact at be installed in pedestal run-on tab, correspondence static contact top at be arranged on
The lower flash barrier in pedestal is arranged at upper flash barrier, the lower section of correspondence static contact in upper lid, described upper flash barrier is with
Being constituted between flash barrier has the arc being connected with an arc-chutes chamber, is provided with the upper surface of described lower flash barrier a plurality of
It is provided with convex tendon, the lower surface of described upper flash barrier on a plurality of groove, described static contact and is provided with arc leading angle, and striking
The tail end bending at angle is extended in arc-chutes, and the bending striking that a basic configuration is in inverted U is provided with described run-on tab
Portion, and bending striking portion is located at the underface of moving contact, one end bending of run-on tab extended in arc-chutes, run-on tab it is another
End extends and is connected on the bimetal leaf of electric heating system towards the bending of electric heating system direction.
The beneficial effect of said structure is：Flash barrier and lower arc are provided with the arc quenching system of the miniature circuit breaker
Plate, when producing electric arc between moving contact and static contact, the arc chamber between upper flash barrier and lower flash barrier can be quick by electric arc
Suck arc-chutes, electric arc is cooled rapidly, reach it is quick extinguish the purpose of electric arc, and be provided with convex tendon on lower flash barrier, on every
Set fluted on arc plate, so as to increase the film-cooled heat of electric arc, decline the electric field of arc gap, accelerate medium recovery strength,
Play a part of quickly extinguishing electric arc, so as to improve the breaking capacity of miniature circuit breaker；And be provided with can be fast by electric arc for static contact
The arc leading angle that speed is introduced in arc-chutes, and a bending striking portion is provided with run-on tab, the bending striking portion strengthens electric arc
Cooling and diffusion effect, accelerate the extinguishing of electric arc, so as to realize the efficient disjunction of miniature circuit breaker.
Especially, two clamping blocks are provided with described run-on tab, two clamping blocks of correspondence in described pedestal, upper lid
Place is respectively arranged with a neck, and two clamping blocks be installed on respectively in corresponding neck and constitute run-on tab and pedestal,
The clamping of upper lid.Connected between run-on tab and pedestal, upper lid by the way of clamping, consequently facilitating the installation of run-on tab, is improved
The miniature circuit breaker production efficiency.
Brief description of the drawings
Fig. 1 is the front view of the utility model miniature circuit breaker.
Fig. 2 is A-A sectional views in Fig. 1.
Fig. 3 is the utility model miniature circuit breaker cut-away view.
Fig. 4 is the assembling figure of flash barrier and upper lid on the utility model.
Fig. 5 is the stereogram of the utility model run-on tab.
Embodiment
As shown in Fig. 1~5, the utility model embodiment is a kind of high-breaking miniature breaker, including shell 10, operation system
System 20, electric heating system 21, arc quenching system 30, moving contact 22, static contact 23, shell 10 include pedestal 11 and upper lid 12, pedestal 11
Being constituted between upper lid 12 has an accommodating cavity 100, described operating system 20, electric heating system 21, arc quenching system 30, moving contact
22nd, static contact 23 is separately positioned in accommodating cavity, and described arc quenching system 30 includes clamp at arc-chutes 31, correspondence moving contact 22
Upper flash barrier 33, correspondence stationary contact in lid 12 are arranged at run-on tab 32, the top of correspondence static contact 23 in pedestal 11
The lower flash barrier 34 in pedestal 11 is arranged at first 23 lower section, being constituted between described upper flash barrier 33 and lower flash barrier 34 has
A plurality of convex tendon 341 is provided with one arc chamber 300 for being connected with arc-chutes 31, the upper surface of described lower flash barrier 34,
It is provided with the lower surface of described upper flash barrier 33 on a plurality of groove 331, described static contact 23 and is provided with arc leading angle 231,
And the tail end bending of arc leading angle 231 is extended in arc-chutes 31, a basic configuration is provided with described run-on tab 32 in U
The bending striking portion 321 of type, and bending striking position 321 is in the underface of moving contact 22, one end bending extension of run-on tab 32
To arc-chutes, the other end of run-on tab 32 extends towards the direction bending of electric heating system 21 and is connected to double gold of electric heating system 21
Belong on piece 211.As shown in Fig. 3,4,5, two clamping blocks 322 are provided with described run-on tab 32, described pedestal 11, upper lid
A neck 121 is respectively arranged with two clamping blocks of correspondence in 12, and two clamping blocks 322 are installed on corresponding card respectively
Groove 121 is interior and constitutes run-on tab 32 and pedestal 11, the clamping of upper lid 12.The side of clamping is used between run-on tab and pedestal, upper lid
Formula is connected, consequently facilitating the installation of run-on tab, the production efficiency of the miniature circuit breaker of raising.
Flash barrier and lower flash barrier are provided with the arc quenching system of the miniature circuit breaker, when between moving contact and static contact
When producing electric arc, the arc chamber between upper flash barrier and lower flash barrier can quickly suck electric arc arc-chutes, and electric arc is by fast quickly cooling
But, reach it is quick extinguish the purpose of electric arc, and be provided with lower flash barrier on convex tendon, upper flash barrier and set fluted, so as to increase
The big film-cooled heat of electric arc, makes the electric field of arc gap decline, quickening medium recovery strength plays a part of quickly extinguishing electric arc,
So as to improve the breaking capacity of miniature circuit breaker；And static contact is provided with the arc leading angle that can be rapidly introduced into electric arc in arc-chutes,
And a bending striking portion is provided with run-on tab, the bending striking portion strengthens cooling and the diffusion effect of electric arc, accelerates electric arc
Extinguishing, so as to realize the efficient disjunction of miniature circuit breaker.
Claims (2)
1. a kind of high-breaking miniature breaker, including shell, operating system, electric heating system, arc quenching system, moving contact, static contact,
Shell includes pedestal and upper lid, and composition has an accommodating cavity between pedestal and upper lid, described operating system, electric heating system, goes out
Arc system, moving contact, static contact are separately positioned in accommodating cavity, it is characterised in that：Described arc quenching system includes arc-chutes, right
Answer the run-on tab being installed at moving contact in pedestal, upper flash barrier in lid, correspondingly is arranged at the top of correspondence static contact
The lower flash barrier in pedestal is arranged at the lower section of static contact, between described upper flash barrier and lower flash barrier constitute have one with
It is provided with a plurality of convex tendon on the arc chamber that arc-chutes are connected, the upper surface of described lower flash barrier, described upper flash barrier
It is provided with lower surface on a plurality of groove, described static contact and is provided with arc leading angle, and the tail end bending of arc leading angle is extended to and gone out
In arc chamber, the bending striking portion that a basic configuration is in inverted U is provided with described run-on tab, and bending striking portion is positioned at dynamic
The underface of contact, one end bending of run-on tab is extended in arc-chutes, and the other end of run-on tab is rolled over towards electric heating system direction
It is curved to extend and be connected on the bimetal leaf of electric heating system.
2. high-breaking miniature breaker according to claim 1, it is characterised in that：Two are provided with described run-on tab
A neck is respectively arranged with two clamping blocks of correspondence in clamping block, described pedestal, upper lid, and two clamping blocks block respectively
In corresponding neck and constitute run-on tab and pedestal, the clamping of upper lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720050557.5U CN206349330U (en) | 2017-01-17 | 2017-01-17 | High-breaking miniature breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720050557.5U CN206349330U (en) | 2017-01-17 | 2017-01-17 | High-breaking miniature breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206349330U true CN206349330U (en) | 2017-07-21 |
Family
ID=59324887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720050557.5U Active CN206349330U (en) | 2017-01-17 | 2017-01-17 | High-breaking miniature breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206349330U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833805A (en) * | 2017-10-26 | 2018-03-23 | 上海良信电器股份有限公司 | A kind of breaker thermal tripping system |
| CN107833810A (en) * | 2017-10-26 | 2018-03-23 | 上海良信电器股份有限公司 | Breaker arc leading angle |
| CN108010811A (en) * | 2018-01-05 | 2018-05-08 | 行驱电气（上海）有限公司 | A kind of case for circuit breaker, arc-control device and breaker |
-
2017
- 2017-01-17 CN CN201720050557.5U patent/CN206349330U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833805A (en) * | 2017-10-26 | 2018-03-23 | 上海良信电器股份有限公司 | A kind of breaker thermal tripping system |
| CN107833810A (en) * | 2017-10-26 | 2018-03-23 | 上海良信电器股份有限公司 | Breaker arc leading angle |
| CN108010811A (en) * | 2018-01-05 | 2018-05-08 | 行驱电气（上海）有限公司 | A kind of case for circuit breaker, arc-control device and breaker |
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