CN105206478A - Device for accelerating repulsion of contacts of circuit breaker - Google Patents
Device for accelerating repulsion of contacts of circuit breaker Download PDFInfo
- Publication number
- CN105206478A CN105206478A CN201510474063.5A CN201510474063A CN105206478A CN 105206478 A CN105206478 A CN 105206478A CN 201510474063 A CN201510474063 A CN 201510474063A CN 105206478 A CN105206478 A CN 105206478A
- Authority
- CN
- China
- Prior art keywords
- contact
- moving contact
- pedestal
- circuit breaker
- iron core
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
Abstract
The invention discloses a device for accelerating repulsion of contacts of a circuit breaker. The device comprises a pedestal, the upper portion of the pedestal is provided with a static contact rod, a static contact is mounted on the static contact rod, the lower portion of the pedestal is provided with a static iron core, the middle of the pedestal is provided with a moving contact shaft and a main rotating shaft via a support, the moving contact shaft is connected with a moving contact rod, the upper portion of the moving contact rod is provided with a moving contact in corresponding to the static contact, a contact spring is mounted between the support and the moving contact, and an armature and a soft connection device are mounted between the static iron core and the moving contact rod. The device has the advantages that the structure is simple, the practicality is high, the production cost is low, use and operation are convenient, different forces including Lorentz force and extra electromagnetic force between the contacts can be obtained when the moving contact is disconnected, the disconnecting speed and the arc voltage of the contacts are improved, and the effect of rapid arc extinguishing can be achieved.
Description
Technical field
The present invention relates to a kind of circuit breaker parts, particularly a kind of circuit breaker acceleration contact device of scolding out.
Background technology
Existing breaker of plastic casing, particularly have the circuit breaker of current-limiting function when circuit for generating short circuit, its dynamic and static contact, under electrodynamic effect, separates within the extremely short time, and produce electric arc, when fault current is by breaker of plastic casing, occur scolding out the time of needs to be t0 to contact instantaneously from short circuit current, contact scolds out rear electric arc to have a stagnation process, after contact experienced by this time, ability setting in motion, from the requirement of current limliting break performance, wishes that these two times are more short better.
When after contact setting in motion, electric arc transfers to arc angle from contact, and along with the electric arc of opening of moving contact is elongated and enters arc control device, we wish that arc energy is elongated fast in this process, thus provide arc voltage to play metering function, thus improve the connecting-disconnecting function of product.
At present, Mitsubishi adopts electronic trough structure, gas exhausted material is placed on contact both sides, and when cut-offfing, high arc temperature makes gas exhausted material gasify, and improves arc suppression chamber pressure and comes elongating arc and cooling electric arc.Two contact systems of the companies such as ABB Schneider, have employed Huo Muli and the Loulun magnetism of 2 times, improve the breaking speed of movable contact rod, thus rapid elongation electric arc improves arc voltage.
Owing to adopting two contact system can not meet miniaturized and economical requirement, certain restriction is received to the popularization of product.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides the device that a kind of circuit breaker acceleration contact is scolded out.
To achieve these goals, the measure taked of the present invention:
The device that a kind of circuit breaker acceleration contact is scolded out, comprise pedestal, the top of described pedestal is provided with stationary contact bar, stationary contact bar is provided with fixed contact, and the bottom of pedestal is provided with static iron core, and there are moving contact axle and main shaft in the centre of pedestal by support installing, moving contact axle is connected with movable feeler lever, the top of movable feeler lever is provided with the moving contact corresponding with fixed contact, is provided with touch spring between support and moving contact axle, is provided with armature and soft connection device between static iron core and movable feeler lever;
Described stationary contact bar comprises installation portion, connecting portion and function part, and what installation portion was vertical is fixed on pedestal, and function part is arranged to installation portion lopsidedness, and fixed contact is arranged on the front side of function part;
Described pedestal is an entirety of injection moulding integrated molding.
Beneficial effect of the present invention: structure is simple, practical, production cost is low, use, easy to operate, moving contact, when cut-offfing, can obtain the Huo Muli between contact, conductor Loulun magnetism and extra electromagnetic force, improve speed of cut-offfing, the arc voltage of contact, reach the effect of fast arc extinction.
Accompanying drawing explanation
Fig. 1 is the "on" position structural representation of invention.
Fig. 2 is the gate-dividing state structural representation of invention.
Embodiment
The device that a kind of circuit breaker acceleration contact is scolded out, comprise pedestal 12, the top of described pedestal 12 is provided with stationary contact bar 1, stationary contact bar 1 is provided with fixed contact 2, the bottom of pedestal 12 is provided with static iron core 11, the centre of pedestal 12 is provided with moving contact axle 5 and main shaft 6 by support 8, moving contact axle 5 is connected with movable feeler lever 4, the top of movable feeler lever 4 is provided with the moving contact 3 corresponding with fixed contact 2, touch spring 7 is installed between support 8 and moving contact axle 5, armature 9 and soft connection device 10 are installed between static iron core 11 and movable feeler lever 4.
Described stationary contact bar 1 comprises installation portion, connecting portion and function part, and what installation portion was vertical is fixed on pedestal 12, and function part is arranged to installation portion lopsidedness, and fixed contact 2 is arranged on the front side of function part.
Described pedestal 12 is an entirety of injection moulding integrated molding.
The invention provides the electromagnetic force outside a kind of Huo Muli of producing between original contact and Loulun magnetism, apparatus of the present invention are provided with static iron core 11 on pedestal 12, armature 9 is installed between static iron core 11 and movable feeler lever 4, when inventing by drop-out current, static iron core 11 is under the function of current of soft connection device 10, produce powerful magnetic field and attract armature, thus make moving contact 3 when cut-offfing, the Huo Muli between moving contact 3 and fixed contact 2 can be obtained, conductor Loulun magnetism and extra electromagnetic force, what improve moving contact 3 and fixed contact 2 cut-offs speed, arc voltage, reach the effect of fast arc extinction.
Whole contrive equipment, when short circuit current is by product, Huo Muli is produced between moving contact 3 and fixed contact 2, Loulun magnetism is produced between movable feeler lever 4 and stationary contact bar 1, along with the raising of electric current, Huo Mulijia Loulun magnetism overcomes the pressure of contact, movable feeler lever 4 setting in motion, produce electric arc pilot arc between moving contact 3 and fixed contact 2 to burn, along with moving contact leaves fixed contact point, Huo Muli disappears, moving contact 3 continues to open under the effect of Loulun magnetism, the now suction that produces under the effect of big current of static iron core 11, armature 9 is made to drive movable feeler lever 4 to draw close to static iron core 11 fast, moving contact 3 is under the suction of static iron core 11 and the Loulun magnetism effect of conductor, movable feeler lever 4 moves toward opening direction.Because moving contact 3 is being subject to 2 active forces, improve the movement velocity that movable feeler lever 4 is opened, improving arc voltage, achieving object of the present invention.
Claims (3)
1. the circuit breaker acceleration contact device of scolding out, comprise pedestal (12), it is characterized in that: the top of described pedestal (12) is provided with stationary contact bar (1), stationary contact bar (1) is provided with fixed contact (2), the bottom of pedestal (12) is provided with static iron core (11), the centre of pedestal (12) is provided with moving contact axle (5) and main shaft (6) by support (8), moving contact axle (5) is connected with movable feeler lever (4), the top of movable feeler lever (4) is provided with the moving contact (3) corresponding with fixed contact (2), touch spring (7) is installed between support (8) and moving contact axle (5), armature (9) and soft connection device (10) are installed between static iron core (11) and movable feeler lever (4).
2. a kind of circuit breaker acceleration contact according to claim 1 device of scolding out, it is characterized in that: described stationary contact bar (1) comprises installation portion, connecting portion and function part, what installation portion was vertical is fixed on pedestal (12), function part is arranged to installation portion lopsidedness, and fixed contact (2) is arranged on the front side of function part.
3. a kind of circuit breaker acceleration contact according to claim 1 and 2 device of scolding out, is characterized in that: the entirety that described pedestal (12) is injection moulding integrated molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474063.5A CN105206478A (en) | 2015-08-05 | 2015-08-05 | Device for accelerating repulsion of contacts of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474063.5A CN105206478A (en) | 2015-08-05 | 2015-08-05 | Device for accelerating repulsion of contacts of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105206478A true CN105206478A (en) | 2015-12-30 |
Family
ID=54954088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510474063.5A Pending CN105206478A (en) | 2015-08-05 | 2015-08-05 | Device for accelerating repulsion of contacts of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105206478A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762041A (en) * | 2016-05-17 | 2016-07-13 | 浙江人民电器有限公司 | Arc extinguishing structure of direct current circuit breaker |
| CN105762042A (en) * | 2016-05-17 | 2016-07-13 | 浙江人民电器有限公司 | Direct current circuit breaker |
| CN105788986A (en) * | 2016-05-17 | 2016-07-20 | 浙江人民电器有限公司 | Arc extinguishing device for direct current breakers |
| CN105788987A (en) * | 2016-05-17 | 2016-07-20 | 浙江人民电器有限公司 | Easy-breaking direct current breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09204868A (en) * | 1996-01-29 | 1997-08-05 | Matsushita Electric Works Ltd | Breaker trip device |
| CN201655708U (en) * | 2010-03-04 | 2010-11-24 | 浙江百事宝电器有限公司 | Electromagnetic release of plastic outer casing type circuit breaker |
| CN102938354A (en) * | 2012-11-15 | 2013-02-20 | 西安交通大学 | Contact and arc extinction system of mold case circuit breaker |
| CN203150498U (en) * | 2013-04-19 | 2013-08-21 | 浙江百事宝电器有限公司 | High current repulsion-aside rapid action mechanism of miniature circuit breaker |
| CN204927214U (en) * | 2015-08-05 | 2015-12-30 | 浙江凯发电气股份有限公司 | Circuit breaker is with accelerateing device that contact is scolded out |
-
2015
- 2015-08-05 CN CN201510474063.5A patent/CN105206478A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09204868A (en) * | 1996-01-29 | 1997-08-05 | Matsushita Electric Works Ltd | Breaker trip device |
| CN201655708U (en) * | 2010-03-04 | 2010-11-24 | 浙江百事宝电器有限公司 | Electromagnetic release of plastic outer casing type circuit breaker |
| CN102938354A (en) * | 2012-11-15 | 2013-02-20 | 西安交通大学 | Contact and arc extinction system of mold case circuit breaker |
| CN203150498U (en) * | 2013-04-19 | 2013-08-21 | 浙江百事宝电器有限公司 | High current repulsion-aside rapid action mechanism of miniature circuit breaker |
| CN204927214U (en) * | 2015-08-05 | 2015-12-30 | 浙江凯发电气股份有限公司 | Circuit breaker is with accelerateing device that contact is scolded out |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762041A (en) * | 2016-05-17 | 2016-07-13 | 浙江人民电器有限公司 | Arc extinguishing structure of direct current circuit breaker |
| CN105762042A (en) * | 2016-05-17 | 2016-07-13 | 浙江人民电器有限公司 | Direct current circuit breaker |
| CN105788986A (en) * | 2016-05-17 | 2016-07-20 | 浙江人民电器有限公司 | Arc extinguishing device for direct current breakers |
| CN105788987A (en) * | 2016-05-17 | 2016-07-20 | 浙江人民电器有限公司 | Easy-breaking direct current breaker |
| CN105788987B (en) * | 2016-05-17 | 2018-01-09 | 浙江人民电器有限公司 | A kind of easily disjunction dc circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 2-1 No. 325000 Zhejiang city of Wenzhou province Yueqing North white elephant white town road (South) Applicant after: Zhejiang Kai FA Electric Co., Ltd. Address before: 2-1 No. 325000 Zhejiang city of Wenzhou province Yueqing North white elephant white town road (South) Applicant before: ZHEJIANG KAIFA ELECTRICAL CO., LTD. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Qili Inventor after: Yu Cuntai Inventor after: Yang Xiaoteng Inventor after: Zhang Huoming Inventor before: Xia Chuyang Inventor before: Jiang Wangwang Inventor before: Zhao Keda Inventor before: Chen Zhongkao |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151230 |