CN203377185U - Operation mechanism of miniature circuit breaker - Google Patents
Operation mechanism of miniature circuit breaker Download PDFInfo
- Publication number
- CN203377185U CN203377185U CN201320510111.8U CN201320510111U CN203377185U CN 203377185 U CN203377185 U CN 203377185U CN 201320510111 U CN201320510111 U CN 201320510111U CN 203377185 U CN203377185 U CN 203377185U
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- CN
- China
- Prior art keywords
- moving contact
- housing
- circuit breaker
- operating mechanism
- miniature circuit
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Abstract
The utility model discloses an operation mechanism of a miniature circuit breaker. The operation mechanism comprises a shell, a handle, a U-shaped connection rod, a transmission piece and a release rod which are arranged in the shell, wherein the handle is connected with the top of a movable contact by the U-shaped connection rod, the middle part of the movable contact is rotatably connected with the shell by a contact shaft, the bottom of the movable contact is corresponded with a static contact; the middle part of the transmission piece is rotatably connected with the shell by a transmission piece shaft, the top of the transmission piece is axially connected with one end of the release rod, the bottom of the transmission piece is corresponded with an electromagnetic release device in the shell; the top of a bimetal element of a thermal release device is bunted against one end of the release rod which is not connected with the transmission piece. The operation mechanism has features of simple and reasonable structure, and high action reliability.
Description
Technical field
The utility model belongs to field of circuit breakers, is specifically related to a kind of operating mechanism of miniature circuit breaker.
Background technology
Miniature circuit breaker is applicable to the overload of alternating current circuit and the use of short-circuit protection, also can be under normal circumstances as the use of the not frequent transitions of circuit.Miniature circuit breaker is mainly used in the various places such as industry, business, high level and residential houses.
The structure of the operating mechanism of miniature circuit breaker in the market is comparatively loaded down with trivial details, cause the action sensitivity of miniature circuit breaker not high, and cost is higher.
The utility model content
The purpose of this utility model is to provide the operating mechanism of the rational miniature circuit breaker of a kind of designs simplification.
The technical scheme that realizes the utility model purpose is:
A kind of operating mechanism of miniature circuit breaker, comprise housing, and be arranged on handle, U-shaped connecting rod, driving member and release lever in housing;
Described handle is rotatably connected on described housing by Handle axis, and described handle is connected with the top of moving contact by described U-shaped connecting rod, and the middle part of described moving contact is rotationally connected by contact axle and housing, the setting corresponding to fixed contact of described moving contact bottom;
The middle part of described driving member is rotationally connected by driving member axle and housing, and an end of its top and release lever is coupling, the corresponding setting of electromagnetic tripping apparatus that its bottom is interior with being arranged on housing; The bimetal leaf of thermal release device is resisted against on the end that release lever is not connected with described driving member; While in circuit, short circuit current occurring, electromagnetic tripping apparatus moves and promotes the driving member action, driving member pulls release lever again, thereby the top of release lever forces the U-shaped connecting rod to break away from the stability that fastening position destroys the linkage consisted of handle, U-shaped connecting rod and moving contact, makes mechanical unlocking; While in circuit, overload current occurring, bimetal leaf heating distortion, pull release lever, thereby the top of release lever forces the U-shaped connecting rod to break away from the stability that fastening position destroys the linkage consisted of handle, U-shaped connecting rod and moving contact, makes mechanical unlocking.
In technique scheme, this operating mechanism also comprises indicating the indication piece of the state of described moving contact;
The middle part of described indication piece is rotationally connected by indication piece axle and housing, and its bottom and described moving contact are coupling, and its top is provided with index plane, and described housing and described index plane relevant position are provided with watch window.
In technique scheme, the bottom of described fixed contact is bent to form striking section towards the arc control device direction.
In technique scheme, described fixed contact adopts the fixed contact of being made by the copper clad steel material.
In technique scheme, the width that is arranged on the moving contact on moving contact is greater than the width of moving contact.
The utlity model has positive effect:
(1) than the operating mechanism of traditional miniature circuit breaker, the parts that operating mechanism of the present utility model uses are relatively less, and designs simplification is reasonable, when circuit overload and short circuit occur, action sensitivity is high, and effectively reduces cost, has good result of use.
(2), in the operating mechanism of miniature circuit breaker of the present utility model, by the indication piece that indication moving contact state is set, making operating personnel can know easily circuit breaker is in closure state or off-state.
(3) in the operating mechanism of miniature circuit breaker of the present utility model, the bottom of described fixed contact is bent to form striking section towards the arc control device direction, and described fixed contact adopts copper clad steel to make; Adopt this structure can guarantee the conductivity of fixed contact, utilized again the magnetic conductivity of steel, can fast electric arc be introduced to arc control device.
(4) in the operating mechanism of miniature circuit breaker of the present utility model, the width that is arranged on the moving contact on moving contact is greater than the width of moving contact, adopts this structure can increase the contact area of moving contact and fixed contact.
The accompanying drawing explanation
The structural representation of the operating mechanism that Fig. 1 is miniature circuit breaker of the present utility model.
Reference numeral shown in figure is: the 1-handle; The 2-housing; The 21-watch window; The 3-moving contact; 31-contact axle; 4-U shape connecting rod; The 5-fixed contact; 51-striking section; The 6-driving member; 61-driving member axle; The 7-release lever; The 8-electromagnetic tripping apparatus; The 9-thermal release device; The 91-bimetal leaf; The 10-indication piece; 101-indication piece axle; The 102-index plane; The 11-Handle axis; The 12-arc control device.
Embodiment
A kind of embodiment below in conjunction with Figure of description to the operating mechanism of miniature circuit breaker of the present utility model elaborates:
As shown in Figure 1, a kind of operating mechanism of miniature circuit breaker, comprise housing 2, and be arranged on handle 1, U-shaped connecting rod 4, driving member 6 and release lever 7 in housing 2; Described handle 1 is rotatably connected on described housing 2 by Handle axis 11, described handle 1 is connected with the top of moving contact 3 by described U-shaped connecting rod 4, the middle part of described moving contact 3 is rotationally connected by contact axle 31 and housing 2, the setting corresponding to fixed contact 5 of described moving contact 3 bottoms; The middle part of described driving member 6 is rotationally connected by driving member axle 61 and housing 2, and an end of its top and release lever 7 is coupling, the corresponding setting of electromagnetic tripping apparatus 8 that its bottom is interior with being arranged on housing 2; The bimetal leaf 91 of thermal release device 9 is resisted against on the end that release lever 7 is not connected with described driving member 6; While in circuit, short circuit current occurring, electromagnetic tripping apparatus 8 moves and promotes driving member 6 actions, driving member 6 pulls release lever 7 again, thereby the top of release lever 7 forces U-shaped connecting rod 4 to break away from the stability that fastening position destroys the linkage consisted of handle 1, U-shaped connecting rod 4 and moving contact 3, makes mechanical unlocking; While in circuit, overload current occurring, bimetal leaf 91 heating distortion, pull release lever 7, thereby the top of release lever 7 forces U-shaped connecting rod 4 to break away from the stability that fastening position destroys the linkage consisted of handle 1, U-shaped connecting rod 4 and moving contact 3, makes mechanical unlocking.
Than the operating mechanism of traditional miniature circuit breaker, the parts that the operating mechanism in the present embodiment uses are relatively less, and designs simplification is reasonable, when circuit overload and short circuit occur, action sensitivity is high, and effectively reduces cost, has good result of use.
The described operating mechanism of the present embodiment also comprises indicating the indication piece 10 of the state of described moving contact 3; The middle part of described indication piece 10 is rotationally connected by indication piece axle 101 and housing 2, and its bottom and described moving contact 3 are coupling, and its top is provided with index plane 102, and described housing 2 is provided with watch window 21 with described index plane 102 relevant positions.By the indication piece 10 that indication moving contact 3 states are set, making operating personnel can know easily circuit breaker is in closure state or off-state.
The bottom of the described fixed contact 5 in the present embodiment is bent to form striking section 51 towards arc control device 12 directions; Described fixed contact 5 adopts the fixed contact of being made by the copper clad steel material; Adopt this structure can guarantee the conductivity of fixed contact 5, utilized again the magnetic conductivity of steel, can fast electric arc be introduced to arc control device 12.
The width that is arranged on the moving contact on moving contact 3 is greater than the width of moving contact 3, adopts this structure can increase the contact area of moving contact and fixed contact 5.
Obviously, above-described embodiment of the present utility model is only for the utility model example clearly is described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (5)
1. the operating mechanism of a miniature circuit breaker, comprise housing (2), and be arranged on handle (1), U-shaped connecting rod (4), driving member (6) and release lever (7) in housing (2);
Described handle (1) is rotatably connected on described housing (2) by Handle axis (11), described handle (1) is connected with the top of moving contact (3) by described U-shaped connecting rod (4), the middle part of described moving contact (3) is rotationally connected by contact axle (31) and housing (2), described moving contact (3) bottom and the corresponding setting of fixed contact (5);
It is characterized in that: the middle part of described driving member (6) is rotationally connected by driving member axle (61) and housing (2), and an end of its top and release lever (7) is coupling, the corresponding setting of electromagnetic tripping apparatus (8) that its bottom is interior with being arranged on housing (2); The bimetal leaf (91) of thermal release device (9) is resisted against on the end that release lever (7) is not connected with described driving member (6).
2. the operating mechanism of miniature circuit breaker according to claim 1 is characterized in that: this operating mechanism also comprises indicating the indication piece (10) of the state of described moving contact (3);
The middle part of described indication piece (10) is rotationally connected by indication piece axle (101) and housing (2), its bottom and described moving contact (3) are coupling, its top is provided with index plane (102), and described housing (2) is provided with watch window (21) with described index plane (102) relevant position.
3. the operating mechanism of miniature circuit breaker according to claim 2, it is characterized in that: the bottom of described fixed contact (5) is bent to form striking section (51) towards arc control device (12) direction.
4. the operating mechanism of miniature circuit breaker according to claim 3, is characterized in that: the fixed contact that described fixed contact (5) employing is made by the copper clad steel material.
5. according to the operating mechanism of the described miniature circuit breaker of any one in claim 1 to 4, it is characterized in that: the width that is arranged on the moving contact on moving contact (3) is greater than the width of moving contact (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510111.8U CN203377185U (en) | 2013-08-20 | 2013-08-20 | Operation mechanism of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510111.8U CN203377185U (en) | 2013-08-20 | 2013-08-20 | Operation mechanism of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203377185U true CN203377185U (en) | 2014-01-01 |
Family
ID=49839698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320510111.8U Expired - Lifetime CN203377185U (en) | 2013-08-20 | 2013-08-20 | Operation mechanism of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203377185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221481A (en) * | 2017-08-09 | 2017-09-29 | 上海安奕极企业发展有限公司 | Hot dropout governor motion and breaker |
-
2013
- 2013-08-20 CN CN201320510111.8U patent/CN203377185U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221481A (en) * | 2017-08-09 | 2017-09-29 | 上海安奕极企业发展有限公司 | Hot dropout governor motion and breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG PEOPLE ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: PEOPLE ELECTRICAL APPLIANCES GROUP CO., LTD. Effective date: 20140528 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140528 Address after: 325604, Yueqing, Zhejiang province Liushi town wide industrial zone Patentee after: ZHEJIANG PEOPLE ELE. APPLIANCE Co.,Ltd. Address before: 325604, No. 555, Station Road, Liushi Town, Wenzhou, Zhejiang, Yueqing Patentee before: People Electric Appliance Group Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |
|
| CX01 | Expiry of patent term |