CN206727051U - High-breaking miniature breaker - Google Patents
High-breaking miniature breaker Download PDFInfo
- Publication number
- CN206727051U CN206727051U CN201720365486.8U CN201720365486U CN206727051U CN 206727051 U CN206727051 U CN 206727051U CN 201720365486 U CN201720365486 U CN 201720365486U CN 206727051 U CN206727051 U CN 206727051U
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- China
- Prior art keywords
- arc
- contact
- pedestal
- arc quenching
- chutes
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Abstract
It the utility model is related to a kind of high-breaking miniature breaker,Including shell,Operating mechanism,Electric heating system,Arc quenching system,Contact system,Shell includes pedestal and upper lid,Being formed between pedestal and upper lid has an accommodating cavity,Arc quenching system includes arc-chutes,Upper arc quenching plate,Lower arc quenching plate,Described contact system includes the moving contact set with operating mechanism linkage,The movable contact being arranged on moving contact,Static contact in pedestal is set at corresponding moving contact,The stationary contact being arranged at corresponding movable contact on static contact,The afterbody of described static contact, which extends and formed towards the bending of arc-chutes direction, an arc leading angle,The tail end of arc leading angle is arranged in the arc-chutes of arc quenching system,And corresponded in pedestal and one is provided with the side of stationary contact contradicts the support bar on static contact,Corresponded on described moving contact and a deep-slotted chip breaker is provided with the top of movable contact.The utility model has the advantages of simple in construction, stable and reliable for performance, breaking capacity is high.
Description
Technical field
It 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 applies to exchange 50/60Hz rated voltage 230/400V, rated current to 63A circuits
Overload and short-circuit protection be used, can also under normal circumstances as circuit infrequently operation conversion be used.Small-sized open circuit
Device is mainly used in the various places such as industry, business, high-rise and residential houses.The structure design of existing miniature circuit breaker does not conform to
Reason, so as to which the miniature circuit breaker has the defects of performance is unstable, breaking capacity is poor.
The content of the invention
The defects of the purpose of this utility model is to overcome prior art, there is provided a kind of simple in construction, stable and reliable for performance
High-breaking miniature breaker.
To achieve the above object, the utility model uses a kind of high-breaking miniature breaker, including shell, operating mechanism,
Electric heating system, arc quenching system, contact system, shell include pedestal and upper lid, and being formed between pedestal and upper lid has an accommodating cavity,
Described operating mechanism, electric heating system, arc quenching system, contact system are separately positioned in accommodating cavity, and arc quenching system includes arc extinguishing
Room, upper arc quenching plate, lower arc quenching plate, moving contact that described contact system includes setting with operating mechanism linkage, it is arranged on dynamic touch
Static contact in pedestal is set at the movable contact, corresponding moving contact on head, corresponds to the stationary contact being arranged at movable contact on static contact
Point, the afterbody of described static contact, which extends and formed towards the bending of arc-chutes direction, an arc leading angle, and the tail end of arc leading angle is set
Put in the arc-chutes of arc quenching system, and corresponded in pedestal and one is provided with the side of stationary contact contradicts the branch on static contact
Strut, correspond on described moving contact and be provided with a deep-slotted chip breaker at the top of movable contact.
The beneficial effect of said structure is：The miniature circuit breaker is used to support static contact by being provided with one in pedestal
Support bar, so as to avoid static contact by being deformed after impulsive force, and a deep-slotted chip breaker, the arc are provided with moving contact
Shape groove can avoid electric arc from scurrying into operating mechanism, and so as to which arc energy is rapidly introduced into arc-chutes by arc leading angle, electric arc is quickly extinguished,
Improve the breaking capacity of the miniature circuit breaker.So as to which the miniature circuit breaker has simple in construction, stable and reliable for performance, disjunction energy
The advantages of power is high.
Especially, a locating dowel is provided with corresponding lower arc quenching plate in described pedestal, is set on described lower arc quenching plate
A positioning hole being sleeved in locating dowel is equipped with, an arc-shaped slot is provided with the side of described lower arc quenching plate, it is described
Pedestal in correspond to a locating rod be provided with arc-shaped slot, described arc-shaped slot is clamped on the securing lever and gone out under forming
The clamping of arcs and pedestal.Lower arc quenching plate is connected with pedestal by the way of clamping, consequently facilitating the group of lower arc quenching plate and pedestal
Dress.
Brief description of the drawings
Fig. 1 is that the utility model embodiment removes the stereogram after upper lid.
Fig. 2 is Fig. 1 front view.
Fig. 3 is the stereogram of arc quenching plate under the utility model.
Fig. 4 is the stereogram of the utility model moving contact.
Embodiment
As shown in Figures 1 to 3, the utility model embodiment is a kind of high-breaking miniature breaker, including shell 10, operation machine
Structure 20, electric heating system, arc quenching system 21, contact system 30, shell include pedestal 11 and upper lid, formed between pedestal 11 and upper lid
There is an accommodating cavity 100, described operating mechanism 20, electric heating system, arc quenching system 21, contact system 30 are separately positioned on accommodating
In chamber 100, arc quenching system 21 includes arc-chutes 211, upper arc quenching plate, lower arc quenching plate 212, and described contact system 30 includes and behaviour
Make to set pedestal at the moving contact 31, the movable contact 311 being arranged on moving contact 31, corresponding moving contact 31 of the linkage setting of mechanism 20
The stationary contact 321 being arranged at static contact 32, corresponding movable contact 311 in 11 on static contact 32, the tail of described static contact 32
There is an arc leading angle 33 in portion towards the direction bending extension of arc-chutes 211 and composition, and the tail end of arc leading angle 33 is arranged on arc quenching system
The branch that a conflict is provided with the side of stationary contact 321 on static contact 32 is corresponded in 21 arc-chutes 211, and in pedestal 11
Strut 12, by being provided with a support bar for being used to support static contact in pedestal, so as to avoid static contact from being impacted
Deformed after power, improve the reliability of miniature circuit breaker work, as shown in figure 4, corresponding dynamic tactile on described moving contact 31
A deep-slotted chip breaker 312 is provided with the top of point 311.A deep-slotted chip breaker is provided with moving contact, the deep-slotted chip breaker can avoid electricity
Arc is scurried into operating mechanism, and so as to which arc energy is rapidly introduced into arc-chutes by arc leading angle, electric arc is quickly extinguished, and it is small-sized to improve this
The breaking capacity of breaker.So as to which the miniature circuit breaker has the advantages of simple in construction, stable and reliable for performance, breaking capacity is high.
A locating dowel 13 is provided with corresponding lower arc quenching plate 212 in described pedestal 11, is provided with described lower arc quenching plate 212
One positioning hole 14 being sleeved in locating dowel 131, an arc-shaped slot is provided with the side of described lower arc quenching plate 212
15, correspond in described pedestal 11 and a locating rod 16 is provided with arc-shaped slot 212, described arc-shaped slot 15 is installed on
In locating rod 16 and composition descends the clamping of arc quenching plate 212 and pedestal 11.Lower arc quenching plate is connected with pedestal by the way of clamping, from
And it is easy to the assembling of lower arc quenching plate and pedestal.
Claims (2)
1. a kind of high-breaking miniature breaker, including shell, operating mechanism, electric heating system, arc quenching system, contact system, shell
Being formed including pedestal and upper lid, between pedestal and upper lid has an accommodating cavity, described operating mechanism, electric heating system, arc extinguishing system
System, contact system are separately positioned in accommodating cavity, and arc quenching system includes arc-chutes, upper arc quenching plate, lower arc quenching plate, and its feature exists
In：Described contact system include with operating mechanism linkage set moving contact, be arranged on moving contact movable contact, it is corresponding move
Static contact in pedestal is set at contact, corresponds to the stationary contact being arranged at movable contact on static contact, the tail of described static contact
Portion, which extends and formed towards the bending of arc-chutes direction, an arc leading angle, and the tail end of arc leading angle is arranged on the arc-chutes of arc quenching system
It is interior, and corresponded in pedestal and one is provided with the side of stationary contact contradicts the support bar on static contact, on described moving contact
A deep-slotted chip breaker is provided with the top of corresponding movable contact.
2. high-breaking miniature breaker according to claim 1, it is characterised in that：Corresponding lower arc quenching plate in described pedestal
Place is provided with a locating dowel, a positioning hole being sleeved in locating dowel is provided with described lower arc quenching plate, under described
An arc-shaped slot is provided with the side of arc quenching plate, is corresponded in described pedestal and a locating rod is provided with arc-shaped slot,
Described arc-shaped slot clamps on the securing lever and forms the clamping of lower arc quenching plate and pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720365486.8U CN206727051U (en) | 2017-04-07 | 2017-04-07 | High-breaking miniature breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720365486.8U CN206727051U (en) | 2017-04-07 | 2017-04-07 | High-breaking miniature breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206727051U true CN206727051U (en) | 2017-12-08 |
Family
ID=60504524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720365486.8U Active CN206727051U (en) | 2017-04-07 | 2017-04-07 | High-breaking miniature breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206727051U (en) |
-
2017
- 2017-04-07 CN CN201720365486.8U patent/CN206727051U/en active Active
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