CN208385329U - A kind of circuit breaker operation mechanism - Google Patents
A kind of circuit breaker operation mechanism Download PDFInfo
- Publication number
- CN208385329U CN208385329U CN201820864110.6U CN201820864110U CN208385329U CN 208385329 U CN208385329 U CN 208385329U CN 201820864110 U CN201820864110 U CN 201820864110U CN 208385329 U CN208385329 U CN 208385329U
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- China
- Prior art keywords
- moving contact
- rack
- contact
- circuit breaker
- operation mechanism
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Abstract
The utility model discloses a kind of circuit breaker operation mechanism, including handle, handle push rod, moving contact rack and moving contact component；Rack groove is offered on the moving contact rack；One end of the handle push rod is connect with the handle, and the other end is placed in the rack groove；The handle push rod is able to drive the moving contact rack rotation to drive the moving contact component to move when sliding in the rack groove；The moving contact component includes contact connector and moving contact, and the contact connector is connect with the moving contact rack, and the moving contact is connect with the contact connector.The circuit breaker operation mechanism of the utility model ensure that mechanism plastic part will not deform in long-time operates normally, improve product stability, extend the service life of breaker.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, more specifically to a kind of circuit breaker operation mechanism.
Background technique
Common circuit breaker operation mechanism is mostly made of components such as handle, handle push rod, lock, moving contacts.
Moving contact used in the circuit breaker of big ampere (63A or more) is an integral molding structure, in long-term work
Or heat transfer and heat distribution are carried out when test, between whole moving contact so that the temperature of moving contact is higher, with breaker
When plastic part directly contacts (such as moving contact rack), it is easy so that plastic part deforms, so that the properties of product of breaker occur
The stability of problem, product construction is insufficient.
Utility model content
In view of this, ensure that mechanism plastic part the purpose of this utility model is to provide a kind of circuit breaker operation mechanism
It will not be deformed in long-time operates normally, improve product stability, extend the service life of breaker.
In order to achieve the above object, the utility model provides the following technical solutions:
A kind of circuit breaker operation mechanism, including handle, handle push rod, moving contact rack and moving contact component；
Rack groove is offered on the moving contact rack；One end of the handle push rod is connect with the handle, another
End is placed in the rack groove；
The handle push rod is able to drive the moving contact rack rotation to drive when sliding in the rack groove
State moving contact component movement；
The moving contact component includes contact connector and moving contact, and the contact connector and the moving contact rack connect
It connects, the moving contact is connect with the contact connector.
Preferably, further include contact reset spring, axis hole, the contact reset spring are provided in the moving contact rack
Be set on the axis hole, when breaker closing, the contact reset spring deformed, generation make the moving contact component to
Breaker disconnects the power of direction rotation.
It preferably, further include pin shaft, the pin shaft passes through axis hole, and the contact connector passes through with the moving contact rack
Pin shaft is pivotally connected.
Preferably, the contact connector is copper contact connector.
It preferably, further include bracket reset spring, bracket reset spring one end is connect with moving contact rack, the other end
For connecting with circuit breaker housing, when breaker closing, the bracket reset spring deformed, and generation makes the moving contact branch
Frame disconnects the power that direction rotates to breaker.
Preferably, further include lock, the stent cavity for accommodating the lock is provided in the moving contact rack.
Preferably, the axle bed being correspondingly arranged with the axis hole is additionally provided in the stent cavity, described lock is set in institute
It states on axle bed, the pin shaft wears the axis hole and axle bed.
According to above-mentioned technical solution, it is recognised that in the present invention, a kind of circuit breaker operation mechanism, including hand
Handle, handle push rod, moving contact rack and moving contact component；Rack groove is offered on moving contact rack；One end of handle push rod
It is connect with handle, the other end is placed in rack groove；Handle push rod is able to drive moving contact rack when sliding in rack groove
Rotation is to drive moving contact component to move；Moving contact component includes contact connector and moving contact, contact connector and moving contact
Bracket connection, moving contact are connect with contact connector.Moving contact is changed by direct contact moving contact rack (plastic part) before
It is contacted for indirect and moving contact rack, so that even if the temperature when long-time is tested at moving contact is higher, it will not be with modeling
Material bracket directly contacts and plastic stent is made to have certain deformation, it is ensured that the stabilization of product construction extends making for breaker
Use the service life.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of circuit breaker operation mechanism provided by the utility model embodiment；
Fig. 2 is the front view of circuit breaker operation mechanism provided by the utility model embodiment；
Fig. 3 is the rearview of circuit breaker operation mechanism provided by the utility model embodiment；
Fig. 4 is the perspective view of the explosion of circuit breaker operation mechanism provided by the utility model embodiment；
Wherein, it is marked in attached drawing as follows:
1- handle, 2- handle push rod, 3- moving contact rack, 4- lock, 5- rack groove, 6- contact connector, 7- bracket
Reset spring, 8- pin shaft, 9- axis hole, 10- axle bed, 11- contact reset spring, 12- moving contact.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, Fig. 1 is the schematic diagram of circuit breaker operation mechanism provided by the utility model embodiment；Fig. 2 is
The front view of circuit breaker operation mechanism provided by the utility model embodiment；Fig. 3 is provided by the utility model embodiment
The rearview of circuit breaker operation mechanism；Fig. 4 is the explosion signal of circuit breaker operation mechanism provided by the utility model embodiment
Figure.
As shown in Figs 1-4, in a specific embodiment of the utility model, a kind of circuit breaker operation mechanism, including hand
Handle 1, handle push rod 2, moving contact rack 3 and moving contact component；Handle 1 is fixedly installed in circuit breaker base, specifically can be with
It is fixed by handle spring, handle 1 can be along a degree of rotation of axis.The shape and structure of handle 1 and specific fixed form can roots
It is arranged according to the specific requirements of breaker, rack groove 5, one end of handle push rod 2 and handle 1 is offered on moving contact rack 3
Connection, the other end are placed in rack groove 5；The handle push rod 2 is able to drive described dynamic when sliding in the rack groove 5
The rotation of contact supporting 3 is to drive the moving contact component to move.The moving contact component includes contact connector 6 and moving contact
12, the contact connector 6 is connect with the moving contact rack 3, and the moving contact 12 is connect with the contact connector 6.Tool
Body, hole can be offered on handle 1, one end of handle push rod 2 is inserted into above-mentioned hole, and the section of handle push rod 2 is circle, can also
Think other shapes, can set according to actual needs, so that the friction between handle push rod 2 and lock 4 and moving contact rack 3
Power is smaller, and then more laborsaving when the movement of driving handle 1, facilitates operation.The section of handle push rod 2 may be set to be it is oval or
Other shapes.Specific handle push rod 2 can be metallic rod, and corresponding lock 4 and moving contact rack 3 can be plastic part.By
It is less than the frictional force between metal and metal or plastics and plastics in the frictional force of metal and plastic contact surface, to further decrease
Friction between each component of breaking course operating mechanism, thermal conductivity might as well, so as to extending the service life of breaker.Handle
Push rod 2 is usually U-shaped bar, and other shapes can also be used certainly, only needs that handle 1 can be realized to lock 4 and moving contact branch
Transmission between frame 3.Under external force, handle push rod 2 be placed in rack groove 5 one end and can be along rack groove 5
Sliding, and contacted with rack groove 5, and then push lock 4 to rotate with moving contact rack 3, and be further driven to moving contact component
Movement connects circuit, breaker is switched to disconnected by closed state until the moving contact 12 of moving contact component is in contact with static contact
When open state, equally lock 4 is driven to rotate with moving contact rack 3 by handle push rod 2, so that moving contact 12 is separated with static contact,
Cut off circuit.Wherein, existing structure is that moving contact 12 is stuck on plastic stent, then blocks moving contact 12 with touch spring,
12 director's time high temperature of moving contact softens the plastic stent of contact to product during closing operation, and by touch spring
The plastics at 3 cooperation of moving contact 12 and moving contact rack are caused gradually to deform in the case where active force, so that product construction is steady
Qualitative deficiency；Moving contact 12 is changed to elder generation and contact by direct contact moving contact rack 3 (plastic part) before by the technical program
Connector 6 contact, contact connector 6 again with moving contact rack 3 contact, it is necessary to be noted that contact connector 6 with
Moving contact rack 3 can be integrally formed design, is also possible to be combined connection again after separating design, of course, for
The specific size ratio and structure distribution of contact connector 6 and moving contact rack 3 compare also with no restriction, as long as can reach identical
Technical effect, use moving contact 12 with the contact of contact connector 6 to improve moving contact rack 3 directly by high temperature shadow
The phenomenon that ringing and softening, wherein the material of contact connector 6 is metal material, preferably iron material matter, because iron material matter is thermally conductive
Property 80W/mK well below copper 401W/mK, so the contact connector 6 of irony is opposite with 3 contact position temperature of moving contact rack
Temperature in 3 contact position of copper contact connector 6 and moving contact rack can be much lower, of courses, material can also be according to reality
The demand on border is changed, as long as can reach identical technical effect.
It further include contact reset spring 11 in a specific embodiment of the utility model, in the moving contact rack 3
It is provided with axis hole 9, the contact reset spring 11 is set on the axis hole 9, further to utilize the space of moving contact rack 3
Area, saves the whole occupied space of operating mechanism, and when breaker closing, the contact reset spring 11 deformed, and generation makes
The moving contact component disconnects the power that direction rotates to breaker, and the pin shaft 8 passes through axis hole 9, the contact connector 6 and institute
Moving contact rack 3 is stated to be pivotally connected by pin shaft 8, at this point, when moving contact component is moved, contact connector 6 and contact
The active force of reset spring 11 will concentrate on pin shaft 8, further disperse the endurance of moving contact rack 3, anti-stop touching
Deformation occurs for head bracket 3, and by the interval action of pin shaft 8 and contact reset spring 11, so that contact connector 6 also can be
The direct contact area with moving contact rack 3 is reduced to a certain extent, again will not while completing the work of normal breaker
With the heat transfer of 3 occurrence of large-area of moving contact rack, the branch for accommodating the lock 4 is provided in the moving contact rack 3
Frame chamber, the axle bed 10 being correspondingly arranged with the axis hole 9 is additionally provided in the stent cavity, and described lock 4 is set in the axle bed
On 10, the pin shaft 8 wears the axis hole 9 and axle bed 10, it is of course also possible to use other are generated in breaker closing makes
Contact 12 realizes tripping to the elastic component or other modes for disconnecting direction rotation, it is not limited to reset spring.
It further include bracket reset spring 7 in a specific embodiment of the utility model, the bracket reset spring 7
One end is connect with moving contact rack 3, the other end for being connect with circuit breaker housing, when breaker closing the bracket reset spring
7 deform, and generate the power for rotating the moving contact rack 3 to circuit breaker open position direction.Bracket when breaker closing
Reset spring 7 by the both ends of moving contact rack 3 and circuit breaker housing squeeze and deform, generation make moving contact rack 3 to
Breaker disconnects the power of direction rotation.
In conclusion the circuit breaker operation mechanism of the utility model, moving contact 12 is by direct contact moving contact branch before
Frame 3 (plastic part) is changed to indirect and moving contact rack 3 and contacts, so that even if temperature when long-time is tested at moving contact 12
It is higher, it will not directly be contacted with plastic stent and plastic stent is made to have certain deformation, it is ensured that the stabilization of product construction is prolonged
The service life of breaker is grown.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (7)
1. a kind of circuit breaker operation mechanism, which is characterized in that including handle, handle push rod, moving contact rack and moving contact component；
Rack groove is offered on the moving contact rack；One end of the handle push rod is connect with the handle, and the other end is set
In the rack groove；
The handle push rod is able to drive the moving contact rack rotation when sliding in the rack groove described dynamic to drive
Contact assembly movement；
The moving contact component includes contact connector and moving contact, and the contact connector is connect with the moving contact rack,
The moving contact is connect with the contact connector.
2. a kind of circuit breaker operation mechanism as described in claim 1, which is characterized in that it further include contact reset spring, it is described
Axis hole is provided in moving contact rack, the contact reset spring is set on the axis hole, when breaker closing the contact
Reset spring deforms, and generating makes the moving contact component disconnect the power that direction rotates to breaker.
3. a kind of circuit breaker operation mechanism as claimed in claim 2, which is characterized in that further include pin shaft, the pin shaft passes through
Axis hole, the contact connector and the moving contact rack are pivotally connected by pin shaft.
4. a kind of circuit breaker operation mechanism as described in claim 1, which is characterized in that the contact connector is copper contact
Connector.
5. a kind of circuit breaker operation mechanism as described in claim 1, which is characterized in that it further include bracket reset spring, it is described
Bracket reset spring one end is connect with moving contact rack, the other end for being connect with circuit breaker housing, when breaker closing described in
Bracket reset spring deforms, and generating makes the moving contact rack disconnect the power that direction rotates to breaker.
6. a kind of circuit breaker operation mechanism as claimed in claim 3, which is characterized in that further include lock, the moving contact branch
The stent cavity for accommodating the lock is provided in frame.
7. a kind of circuit breaker operation mechanism as claimed in claim 6, which is characterized in that be additionally provided in the stent cavity and institute
The axle bed that axis hole is correspondingly arranged is stated, described lock is set on the axle bed, and the pin shaft wears the axis hole and axle bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820864110.6U CN208385329U (en) | 2018-06-05 | 2018-06-05 | A kind of circuit breaker operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820864110.6U CN208385329U (en) | 2018-06-05 | 2018-06-05 | A kind of circuit breaker operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208385329U true CN208385329U (en) | 2019-01-15 |
Family
ID=64969214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820864110.6U Active CN208385329U (en) | 2018-06-05 | 2018-06-05 | A kind of circuit breaker operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208385329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113394062A (en) * | 2021-06-10 | 2021-09-14 | 浙江大展电器有限公司 | Tripping mechanism and surge protector adopting same |
-
2018
- 2018-06-05 CN CN201820864110.6U patent/CN208385329U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113394062A (en) * | 2021-06-10 | 2021-09-14 | 浙江大展电器有限公司 | Tripping mechanism and surge protector adopting same |
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