CN1209776C - Circuit breaker forced extinguisher - Google Patents
Circuit breaker forced extinguisher Download PDFInfo
- Publication number
- CN1209776C CN1209776C CN 03119432 CN03119432A CN1209776C CN 1209776 C CN1209776 C CN 1209776C CN 03119432 CN03119432 CN 03119432 CN 03119432 A CN03119432 A CN 03119432A CN 1209776 C CN1209776 C CN 1209776C
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- circuit breaker
- flash barrier
- moving contact
- arc
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/32—Insulating body insertable between contacts
Abstract
The present invention discloses a forced arc-extinguishing device of a circuit breaker. An arc partition board is arranged in the circuit breaker, and when the circuit breaker is switched on, the arc partition board is positioned below a movable contact and a fixed contact; a block-shaped connecting rod is connected to the lower part of the arc partition board and the upper part of the movable contact, and the connecting rod is also connected with a guide-bar mechanism for constraining the movement direction of the arc partition board. When the circuit breaker is switched off, the arc partition board is driven to enter between the movable contact and the fixed contact by the movable contact, an electric arc generated breaking current is forcibly obstructed to fast cool and extinguish the electric arc, and the breaking capacity of the circuit breaker can be improved. The circuit breaker can be used as an isolating switch for use.
Description
Technical field
The invention belongs to a kind of protective overload circuit-breakin, particularly a kind of circuit breaker is forced arc-control device.
Background technology
In order to guarantee user's Electrical Safety itself, in electric power system, install circuit breaker usually.When short circuit current appearred in load, the induced electricity that produces in the circuit breaker failed to be convened for lack of a quorum and makes the moving contact action, breaks away from fixed contact, makes the electric current disjunction.In the breaker open operation process, can produce electric arc between moving contact and the fixed contact, because electric arc has electric conductivity,, will influence the breaking capacity and the current limiting performance of circuit breaker if can not in time extinguish.Therefore, for breaking capacity and the current limiting capacity that improves circuit breaker, should electric arc be extinguished rapidly.Existing circuit breaker is typically provided with arc control device, adopts following method: electric arc is elongated; 2, make the electric arc cooling; 3, form the series connection short arc.Conventional grid chip arc control device are difficult to make electric arc in time to extinguish, and production firm also improves arc-suppressing method constantly, in the hope of improving arc quenching effect.As Chinese patent ZL01226415.6 number, make electric arc be divided into the length arc to improve its cooling rate; With magnet electric arc is introduced arc control device ZL0123666.7 number and extinguish, between two contacts, be difficult to block the problem of extinguishing to solve electric arc.The improvement of above-mentioned patent, though can improve arc quenching effect, but still can not when the circuit breaker disjunction, by force electric arc be blocked rapidly and extinguish, affect the breaking capacity of circuit breaker.
Close in the invention
The object of the present invention is to provide a kind of circuit breaker to force arc-control device, when breaker open operation, be located at other insulation board of contact and moving contact interlock rapidly between the insertion dynamic/static contact, one of them contact is covered, by force with the electric arc disjunction, arc extinction is rapid, can effectively improve the circuit breaker breaking capacity.
For achieving the above object, the present invention takes following design: flash barrier of installing in Shell of circuit breaker, this flash barrier is being positioned under the dynamic/static contact contact condition below it, connect the bottom of flash barrier and the top of moving contact with block connecting rod, and this connecting rod is connected with the guide-bar mechanism of the constraint flash barrier direction of motion also.
Common circuit breaker moving contact bottom is general and busbar (line bank) is hinged, and busbar is fixed on the housing.When circuit breaker ran into load and short circuit current occurs, because the induced current effect, moving contact was pulled.Because the hinge constraint is arranged at the movable contact bottom, swing backward on its top, and dynamic/static contact separates and is gate-dividing state, and produces electric arc between dynamic/static contact.When swinging backward, moving contact top affects the block connecting rod and the connecting rod flash barrier displacement of end in addition that are attached thereto, because of being subjected to guide post, connecting rod retrains, flash barrier is moved upward, and is between the dynamic/static contact, covers moving contact or covers fixed contact, flash barrier is made by insulating material, can be by force with the electric arc disjunction, make electric arc cooling and extinguishing rapidly, because the flash barrier of insulation has enough dielectric strengths, arc reignition can be prevented, thereby the circuit breaker breaking capacity can be effectively improved.Because the effect of insulating barrier makes circuit breaker can be used as isolating switch and uses.Described guide-bar mechanism also comprises the slide block slide way mechanism.
Description of drawings
Fig. 1 forces the structural representation of arc-control device for circuit breaker of the present invention
Fig. 2 is first embodiment "on" position structural map
Fig. 3 is first embodiment gate-dividing state structural map
Fig. 4 is second embodiment "on" position structural map
Fig. 5 is second embodiment gate-dividing state structural map
Fig. 6 is the second embodiment partial schematic diagram
Embodiment
The present invention such as Fig. 1, flash barrier 4 of installing in Shell of circuit breaker, this flash barrier is positioned at below it under moving contact 1 and quiet arc head 2 contact conditions, connect the bottom of flash barrier and the top of moving contact with block connecting rod 3, and this connecting rod also is connected with the guide-bar mechanism 5 of the constraint flash barrier direction of motion, and the moving contact bottom is loaded on the busbar 7 by hinge.
In second embodiment of Fig. 4, block connecting rod 3 rear portions connect moving contact top with slider-crank mechanism, connecting rod is anterior to connect flash barrier 4 with slider-crank mechanism 34, the slider-crank mechanism side at flash barrier place is provided with outer slide 35, chute coupling on this slide block and the guide plate 8, guide plate and support 6 are fixed together, and the middle part of connecting rod 3 is connected on the guide plate by the 3rd revolute pair 36.Fig. 6 is a situation behind second embodiment separating brake, can see because the action of moving contact, slider-crank mechanism to extruding connecting rod 3 rear portions, the back lower place, because leverage connecting rod front portion is to top offset, make flash barrier 4 decide direction and enter between the dynamic/static contact because of the crank block 34 of connecting rod front portion is subjected to the chute constraint of guide plate chute, fixed contact is covered by giving.
For making being active in one's movements and simply of flash barrier 4, can install roller 37 on moving contact top, chute and this roller coupling is established at block connecting rod 3 rear portions, with this as slider-crank mechanism 33, and add the slider-crank mechanism of chute structure with sliding pin as the connecting rod front portion, simultaneously with roller 38 as outer slide.
Claims (4)
1, a kind of circuit breaker is forced arc-control device, it is characterized in that: flash barrier of installing in this Shell of circuit breaker, this flash barrier is being positioned under the dynamic/static contact contact condition below it, connect the bottom of flash barrier and the top of moving contact with block connecting rod, and this connecting rod also is connected with the guide-bar mechanism of the constraint flash barrier direction of motion, the moving contact bottom is loaded on the busbar by hinge, when swinging backward, moving contact top affects the block connecting rod and the flash barrier displacement that are attached thereto, connecting rod is retrained by guide post, flash barrier is moved upward, be between dynamic/static contact, cover moving contact or fixed contact.
2, circuit breaker according to claim 1 is forced arc-control device, it is characterized in that: described block connecting rod is triangular in shape, its anterior angle and flash barrier are affixed, last angle is provided with first revolute pair and is connected with moving contact, following relief angle is provided with second revolute pair and is connected with guide rod, the end in addition of guide rod is hinged with support, and support is fixed on the busbar.
3, circuit breaker according to claim 1 is forced arc-control device, it is characterized in that: block connecting rod rear portion connects moving contact top with slider-crank mechanism, the connecting rod front portion connects flash barrier with slider-crank mechanism, the slider-crank mechanism side at flash barrier place is provided with outer slide 35, chute coupling on this slide block and the guide plate, guide plate and support are fixed together, and the middle part of connecting rod is connected on the guide plate by the 3rd revolute pair.
4, circuit breaker according to claim 3 is forced arc-control device, it is characterized in that: roller is installed on moving contact top, chute and this roller coupling are established in block connecting rod rear portion, with this as slider-crank mechanism, and add the crank block structure of chute structure as the connecting rod front portion with sliding pin, use roller as outer slide simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03119432 CN1209776C (en) | 2003-03-12 | 2003-03-12 | Circuit breaker forced extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03119432 CN1209776C (en) | 2003-03-12 | 2003-03-12 | Circuit breaker forced extinguisher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1457065A CN1457065A (en) | 2003-11-19 |
| CN1209776C true CN1209776C (en) | 2005-07-06 |
Family
ID=29411515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03119432 Expired - Fee Related CN1209776C (en) | 2003-03-12 | 2003-03-12 | Circuit breaker forced extinguisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1209776C (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681145B (en) * | 2012-08-30 | 2016-06-22 | 西门子公司 | Arc-control device and adopt the chopper of this arc-control device |
| WO2015058501A1 (en) * | 2013-10-23 | 2015-04-30 | 通能顺达科技国际有限公司 | A synchronous insulation separation power switch device |
| CN103646804B (en) * | 2013-11-30 | 2015-12-09 | 德力西电气有限公司 | The forced extinguisher of circuit breaker |
| CN104022002B (en) * | 2014-05-27 | 2015-12-02 | 通能顺达科技国际有限公司 | One cuts arc circuit breaker fast |
| CN104715947B (en) * | 2015-03-31 | 2018-12-04 | 厦门柏瑞科电气有限公司 | A kind of arc extinguishing structure of Medium voltage switch or circuit breaker |
| CN106558463B (en) * | 2015-09-30 | 2019-06-14 | 上海良信电器股份有限公司 | A kind of contact of breaker protective device |
| CN108987139B (en) * | 2017-06-01 | 2024-02-02 | 泰科电子(深圳)有限公司 | Electrical contact system |
| CN108987140B (en) * | 2017-06-01 | 2024-04-02 | 泰科电子(深圳)有限公司 | Electrical contact system |
| CN107393778B (en) * | 2017-08-23 | 2020-01-14 | 河北宝凯电气股份有限公司 | Arc extinguishing device of shielded circuit breaker |
| CN107342178B (en) * | 2017-08-23 | 2020-07-24 | 河北宝凯电气股份有限公司 | High-breaking miniature circuit breaker |
| CN108320949A (en) * | 2018-01-24 | 2018-07-24 | 季洪顺 | Quickly isolate formula arc-control device and arc-suppressing method |
| CN108766848A (en) * | 2018-06-21 | 2018-11-06 | 上海诺雅克电气有限公司 | The arc extinguishing structure of breaker |
| CN109510079A (en) * | 2018-09-20 | 2019-03-22 | 福建省同金电力科技有限公司 | The anti-reset switch cabinet of electromagnetic type |
| CN113345742A (en) * | 2021-05-24 | 2021-09-03 | 苏州飞腾电器有限公司 | Arc extinguishing system of automatic change-over switch |
-
2003
- 2003-03-12 CN CN 03119432 patent/CN1209776C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1457065A (en) | 2003-11-19 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Beijing City, Daxing District Daxing Industrial Development Zone Jinyuan Road No. 29 Patentee after: Beijing Renmin Electric Appliance Factory Co., Ltd. Address before: Beijing City, Daxing District Daxing Industrial Development Zone Jinyuan Road No. 29 Patentee before: People's Electric Appliance Factory, Beijing |
|
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING RENMIN ELECTRIC APPLIANCE CO., LTD., FACTO Free format text: FORMER NAME: BEIJING RENMIN ELECTRIC APPLIANCE FACTORY |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050706 Termination date: 20160312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |