CN106653412A - Moving contact clamping structure for circuit breaker - Google Patents
Moving contact clamping structure for circuit breaker Download PDFInfo
- Publication number
- CN106653412A CN106653412A CN201611264760.9A CN201611264760A CN106653412A CN 106653412 A CN106653412 A CN 106653412A CN 201611264760 A CN201611264760 A CN 201611264760A CN 106653412 A CN106653412 A CN 106653412A
- Authority
- CN
- China
- Prior art keywords
- moving contact
- elastic ring
- moving
- moving contacts
- conducting bracket
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
Abstract
The invention discloses a moving contact clamping structure for a circuit breaker. The moving contact clamping structure comprises a conductive bracket and two moving contacts; the two moving contacts are mounted on the conductive bracket through a rotary shaft, wherein an elastic ring which can be deformable radially is mounted on the rotary shaft between the two moving contacts; a limiting part used for limiting the two moving contacts is mounted on the conductive bracket; and the outer side walls of the two moving contacts are in tight contact with the conductive bracket in a plane-to-plane manner through radial elastic force generated by the elastic ring. The moving contact clamping structure for the circuit breaker is simple in structure, low in cost, stable and reliable in clamping, capable of remarkably reducing dimensions of the elastic part under the premise of not reducing the clamping force of the moving contact structure, so as to reserve more space to enlarge sectional areas of conductive loops of the moving contacts and other parts, and capable of lowering internal resistance of the loop and laying foundation for improving the current level of a shell frame.
Description
Technical field
The present invention relates to a kind of breaker, more particularly, to a kind of moving contact of breaker clamp structure.
Background technology
With the continuous progress of science and technology, the continuous lifting of breaker manufacturing process, net capacity is or not modern society
Disconnected increase and the needs of centralized power distribution, increasing breaker towards miniaturization, the direction of high breaking are developed.Miniaturization meaning
Will develop the breaker that can carry more high current on the basis of less cage originally, while the disjunction index of breaker is not
Drop is anti-to be risen.Under this harsh design objective, traditional connected mode that is flexible coupling is limited to larger space, to moving contact
The inhibition of motion is larger, affects break, cannot meet the demand of design.Although and existing clamp structure energy
Enough satisfactions are required, but the volume past is huge, and contact and conducting bracket are arranged on rotating shaft inner side by stage clip offer pressure, by turning
The motion of axle divides come the conjunction for realizing switch, and this structure constraint is in the intensity of rotating shaft, and inner space is limited, and stage clip needs to provide
Enough chucking powers, volume can not be too little, therefore this structure also is difficult to provide again bigger space for lifting conductive returning
The sectional area on road.
The content of the invention
It is an object of the invention to provide a kind of moving contact of breaker clamp structure, it has simple structure, takes up room
It is little and clamping it is reliable and stable the characteristics of, to solve prior art in moving contact of breaker clamp structure exist the problems referred to above.
It is that, up to this purpose, the present invention is employed the following technical solutions：
A kind of moving contact of breaker clamp structure, it includes conducting bracket and two panels moving contact, and the two panels moving contact leads to
Cross rotating shaft to be installed on the conducting bracket, wherein, being provided with the rotating shaft between the two panels moving contact radially to produce
The elastic ring of raw deformation, is provided with for the limiting component spacing to two panels moving contact on the conducting bracket, and the two panels is moved
The lateral wall of contact is in close contact by the radially elastic force that elastic ring is produced with the conducting bracket face and face.
Especially, the elastic ring is welded by helical spring head and the tail, generally circular.
Especially, the limiting component is two support arms being fixed on the outside of the conducting bracket.
Beneficial effects of the present invention are that compared with prior art the moving contact of breaker clamp structure is certain by setting
The magnitude of interference, the radial dimension for making elastic ring compressed, and elastic ring produces elastic force because of size distortion, so that moving contact and leading
Certain chucking power is produced between electric support, the resistance in loop can be reduced to use range.It is not only simple in structure, low cost；And
Clamping is reliable and stable, the size of elastic component can be substantially reduced on the premise of moving contact structure chucking power is not reduced, so as to stay
Go out more spaces for increasing the sectional area of the part such as moving contact galvanic circle, reduce the internal resistance in loop, be to improve cage
Current class creates basis.
Description of the drawings
Fig. 1 is the structural representation of the moving contact of breaker clamp structure that the specific embodiment of the invention 1 is provided；
Fig. 2 is the structural representation of the elastic ring of the moving contact of breaker clamp structure that the specific embodiment of the invention 1 is provided
Figure；
Fig. 3 is that the stress of the elastic ring of the moving contact of breaker clamp structure that the specific embodiment of the invention 1 is provided is illustrated
Figure.
Specific embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by specific embodiment.
Refer to Fig. 1 to Fig. 3 to show, in the present embodiment, a kind of moving contact of breaker clamp structure includes conducting bracket 1 and two
Piece moving contact 2, the two panels moving contact 2 is installed on the conducting bracket 1 by rotating shaft 3, between the two panels moving contact 2
Being provided with rotating shaft 3 can radially produce the elastic ring 4 of deformation, and two outsides of the conducting bracket 1 are respectively and fixedly provided with for right
The lateral surface of two panels moving contact 2 carries out spacing support arm 5.
The elastic ring 4 is welded by helical spring head and the tail, generally circular, by the footpath for compressing the elastic ring 4
To size, the external diameter for making elastic ring 4 produces recoverable elastic deformation in elastic range, so that elastic ring 4 produces one
Elastic force radially, i.e., apply pressure F to elastic ring 4, and the outer diameter D of elasticity of compression ring 4, elastic ring 4 can produce elastic force T.
The radially elastic force that the lateral wall of the two panels moving contact 2 is produced by elastic ring 4 and the face of the conducting bracket 1 with
Face is in close contact, and constitutes galvanic circle.
Above example simply elaborates the general principle and characteristic of the present invention, and the present invention is not limited by above-mentioned example,
Without departing from the spirit and scope, the present invention also has various change and change, and these changes and change both fall within
In scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent thereof.
Claims (3)
1. a kind of moving contact of breaker clamp structure, it includes conducting bracket and two panels moving contact, and the two panels moving contact passes through
Rotating shaft is installed on the conducting bracket, it is characterised in that being provided with the rotating shaft between the two panels moving contact can be along its footpath
To the elastic ring for producing deformation, it is provided with the conducting bracket for the limiting component spacing to two panels moving contact, described two
The lateral wall of piece moving contact is in close contact by the radially elastic force that elastic ring is produced with the conducting bracket face and face.
2. moving contact of breaker clamp structure according to claim 1, it is characterised in that the elastic ring is by helical spring
Head and the tail are welded, generally circular.
3. moving contact of breaker clamp structure according to claim 1 and 2, it is characterised in that the limiting component is solid
Two support arms on the outside of the conducting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264760.9A CN106653412A (en) | 2016-12-30 | 2016-12-30 | Moving contact clamping structure for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264760.9A CN106653412A (en) | 2016-12-30 | 2016-12-30 | Moving contact clamping structure for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106653412A true CN106653412A (en) | 2017-05-10 |
Family
ID=58837862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611264760.9A Pending CN106653412A (en) | 2016-12-30 | 2016-12-30 | Moving contact clamping structure for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106653412A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101010767A (en) * | 2005-04-20 | 2007-08-01 | 三菱电机株式会社 | Circuit breaker |
| CN201796839U (en) * | 2010-08-20 | 2011-04-13 | 华鹏集团有限公司 | Moving contact device of low-voltage molded case circuit breaker |
| CN204117869U (en) * | 2014-09-18 | 2015-01-21 | 浙江正泰电器股份有限公司 | The contact apparatus of circuit breaker |
| CN206363908U (en) * | 2016-12-30 | 2017-07-28 | 无锡新宏泰电器科技股份有限公司 | A kind of moving contact of breaker clamp structure |
-
2016
- 2016-12-30 CN CN201611264760.9A patent/CN106653412A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101010767A (en) * | 2005-04-20 | 2007-08-01 | 三菱电机株式会社 | Circuit breaker |
| CN201796839U (en) * | 2010-08-20 | 2011-04-13 | 华鹏集团有限公司 | Moving contact device of low-voltage molded case circuit breaker |
| CN204117869U (en) * | 2014-09-18 | 2015-01-21 | 浙江正泰电器股份有限公司 | The contact apparatus of circuit breaker |
| CN206363908U (en) * | 2016-12-30 | 2017-07-28 | 无锡新宏泰电器科技股份有限公司 | A kind of moving contact of breaker clamp structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
|
| RJ01 | Rejection of invention patent application after publication |