CN200972833Y - Automatic changover switch with quick arc extinguishing - Google Patents
Automatic changover switch with quick arc extinguishing Download PDFInfo
- Publication number
- CN200972833Y CN200972833Y CN 200620108957 CN200620108957U CN200972833Y CN 200972833 Y CN200972833 Y CN 200972833Y CN 200620108957 CN200620108957 CN 200620108957 CN 200620108957 U CN200620108957 U CN 200620108957U CN 200972833 Y CN200972833 Y CN 200972833Y
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- China
- Prior art keywords
- arc
- magnetic conduction
- conduction sheet
- arc extinguishing
- contact
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- 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 - Lifetime
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Abstract
The utility model discloses an automatic changeover switch having a quick arc extinguishing function. The base of the changeover switch is provided with an arc extinguishing chamber or a plurality of contact devices. Each contact device comprises a static contact and a dynamic contact that are correspondingly arranged. Each static contact is arranged on a conducting board, and characterized in that an arc extinguishing magnetic strip is provided in the adjacent area. The automatic changeover switch of the utility model allows the magnet conducting sheet to produce a magnetic field when the current crosses the magnet conducting sheet, and the magnetic field imposes a magnetic field force in the same direction of the displacement of the arc on the arc. The arc produced when the changeover switch cuts off the current quickly enters the arc extinguishing chamber, and in this way, the switch quickly extinguishes the arc. The stronger the current is cut off by the changeover switch, the larger the magnetic field force will be produced by the magnet conducting strip, and the more obvious the arc extinction effect will be generated by the changeover switch.
Description
Technical field
The utility model relates to a kind of low-voltage electrical apparatus, relates in particular to automatic change-over, specifically a kind of automatic change-over with quick arc extinguishing function.
Background technology
Existing automatic change-over comprises pedestal, is provided with arc control device and one or more contact apparatus in the described pedestal, and described each contact apparatus comprises the fixed contact and the moving contact of a pair of relative configuration, and described fixed contact is arranged on the conductive plate.The electric arc that produces during majority change over switch breaking current only depends on contact to disconnect post-tensioning long arc and electric arc (electric arc that produces when most of change over switch is wherein arranged at breaking current is not subjected to electrodynamic effect) under electrodynamic effect suffered between the dynamic and static contact, make electric arc enter arc control device and extinguish arcs, and do not take other arc extinguishing measure.This is unfavorable for change over switch connection and the bigger electric current of disjunction, and the electric life of change over switch also is difficult to improve.
Summary of the invention
To be solved in the utility model is the problems referred to above that prior art exists, and a kind of follow-on automatic change-over is provided, and is intended to further improve the arc extinction performance of automatic change-over.
The technical scheme that addresses the above problem employing is: the automatic change-over with quick arc extinguishing function, be provided with arc control device and one or more contact apparatus in the pedestal, described each contact apparatus comprises the fixed contact and the moving contact of a pair of relative configuration, described fixed contact is arranged on the conductive plate, it is characterized in that described each fixed contact peripheral region respectively is provided with an arc extinguishing magnetic conduction sheet.
Automatic change-over of the present utility model when electric current passes magnetic conduction sheet, produces magnetic field in magnetic conduction sheet, make electric arc be subjected to a magnetic field force identical with the electric arc direction of displacement.The electric arc that the change over switch breaking current produces enters arc control device fast under the effect in this magnetic field, thereby reaches the purpose of quick extinguish arcs.The electric current of change over switch disjunction is big more, and the magnetic field force that magnetic conduction sheet produces is just big more, thereby the arc quenching effect of this arc-control device is just remarkable more.
As further improvement of the utility model, described magnetic conduction sheet is " U " shape, and described fixed contact places in described " U " shape magnetic conduction sheet together with an end of coupled conductive plate.Described " U " shape magnetic conduction sheet is made of " L " shape magnetic conduction sheet and " 1 " font magnetic conduction sheet, and is separately positioned on described magnetic conduction sheet and is arranged on the sidewall of arc control device.Because magnetic conduction sheet is a splicing structure, makes installation of the present utility model more convenient quick, and can reduce cost of manufacture.Simultaneously, magnetic conduction sheet is fixed on the pedestal, magnetic conduction sheet also plays the effect of supporting fixed contact, the conductive plate that impulsive force in the time of can preventing the moving contact closure or electrodynamic repulsion force make fixed contact and corresponding site produces plastic deformation, or make the overtravel of moving contact not enough, thereby avoided the high or cold consequence of contact temperature rise.
Further improve as of the present utility model, also be provided with pole shoe on the described magnetic conduction sheet, can increase main flux, reduce leakage flux, strengthen electromagnetic force, more apace extinguish arcs electric arc.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the body construction schematic diagram of the utility model automatic change-over.
Fig. 2 is the structural representation that the utility model comprises the contact apparatus of magnetic conduction sheet.
Fig. 3 is the structural representation of magnetic conduction sheet.
Fig. 4 is arc motion direction and electric arc the analysis chart that be subjected to force direction in magnetic field of contact apparatus when breaking current.
Embodiment
With reference to Fig. 1, Fig. 2,3, automatic change-over of the present utility model, be provided with arc control device 3 and a pair of contact apparatus 2,4 in the pedestal 1, described contact apparatus 2 comprises the fixed contact 13 and the moving contact 8 of a pair of relative configuration, and described fixed contact 13 is arranged on link 14 tops of conductive plate 15.The below of conductive plate link 14 is inserted on " L " shape magnetic conduction sheet 7 bases, and its top is fixed on the sidewall of pedestal 1; " 1 " font magnetic conduction sheet 6 is fixed on the sidewall of another relative pedestal, its bottom and magnetic conduction sheet 7 base amalgamations, " L " shape magnetic conduction sheet 7 and " 1 " font magnetic conduction sheet 6 are combined into " U " shape structure like this, and an end 14 of fixed contact 13 and conductive plate 15 just places in this " U " shape magnetic conduction sheet.Also be provided with pole shoe 16,17 on the described magnetic conduction sheet.
In like manner, described contact apparatus 4 comprises the fixed contact 11 and the moving contact 10 of a pair of relative configuration, and described fixed contact 11 is arranged on another link 12 tops of conductive plate 15.The below of conductive plate link 12 is inserted on " L " shape magnetic conduction sheet 9 bases, and its top is fixed on the sidewall of pedestal 1; " 1 " font magnetic conduction sheet 5 is fixed on the sidewall of another relative pedestal, its bottom and magnetic conduction sheet 9 base amalgamations, " L " shape magnetic conduction sheet 9 and " 1 " font magnetic conduction sheet 5 also are combined into " U " shape structure like this, and the other end 12 of fixed contact 11 and conductive plate 15 just places in this " U " shape magnetic conduction sheet.Be provided with pole shoe 16,17 on the described magnetic conduction sheet equally.
With reference to Fig. 4, pass " U " shape magnetic conduction sheet at electric current at 4,6 o'clock, in magnetic conduction sheet, produce magnetic field, electric arc is subjected to the magnetic field force F of a sensing arc control device direction under this action of a magnetic field, just in time identical with electric Arc Motion direction S, thereby can make electric arc enter arc control device fast, reach the purpose of quick extinguish arcs.
What should be understood that is: the foregoing description is just to explanation of the present utility model, rather than to restriction of the present utility model, any innovation and creation that do not exceed in the utility model connotation scope all fall within the protection range of the present utility model.
Claims (5)
1, the automatic change-over that has quick arc extinguishing function, be provided with arc control device (3) and one or more contact apparatus (2,4) in the pedestal (1), described each contact apparatus (2,4) comprises the fixed contact (13,11) and the moving contact (8,10) of a pair of relative configuration, described fixed contact (13,11) is arranged on the conductive plate (15), it is characterized in that described each fixed contact (13,11) peripheral region respectively is provided with an arc extinguishing magnetic conduction sheet (7,6,9,5).
2, the automatic change-over with quick arc extinguishing function as claimed in claim 1, it is characterized in that described magnetic conduction sheet (7,6,9,5) is " U " shape, described fixed contact (13,11) places in described " U " shape magnetic conduction sheet together with an end (14,12) of coupled conductive plate (15).
3, the automatic change-over with quick arc extinguishing function as claimed in claim 1 is characterized in that described " U " shape magnetic conduction sheet is made of " L " shape magnetic conduction sheet (7,9) and " 1 " font magnetic conduction sheet (6,5).
4,, it is characterized in that described magnetic conduction sheet is arranged on the pedestal (1) as any one described automatic change-over of claim 1-3 with quick arc extinguishing function.
5, the automatic change-over with quick arc extinguishing function as claimed in claim 1 is characterized in that also being provided with on the described magnetic conduction sheet pole shoe (15,16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620108957 CN200972833Y (en) | 2006-10-25 | 2006-10-25 | Automatic changover switch with quick arc extinguishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620108957 CN200972833Y (en) | 2006-10-25 | 2006-10-25 | Automatic changover switch with quick arc extinguishing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200972833Y true CN200972833Y (en) | 2007-11-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620108957 Expired - Lifetime CN200972833Y (en) | 2006-10-25 | 2006-10-25 | Automatic changover switch with quick arc extinguishing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200972833Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420061A (en) * | 2011-08-06 | 2012-04-18 | 安徽鑫龙电器股份有限公司 | Arc extinguish chamber structure of automatic PC (Personal Computer) level dual power change-over switch |
| CN102915893A (en) * | 2011-08-05 | 2013-02-06 | 北京人民电器厂有限公司 | Circuit breaker yoke device for arc striking |
| CN103930962A (en) * | 2011-11-12 | 2014-07-16 | 埃伦贝格尔及珀恩斯根有限公司 | Switching system |
| CN104157479A (en) * | 2014-09-03 | 2014-11-19 | 贵州长征开关制造有限公司 | Switch-on and switch-off mechanism of automatic transfer switching equipment |
| CN107045968A (en) * | 2016-02-05 | 2017-08-15 | 上海良信电器股份有限公司 | It is a kind of to strengthen the quick arc-striking structure of breaker breaking capacity |
| CN108389742A (en) * | 2018-04-27 | 2018-08-10 | 福州大学 | Reinforce the method that arc gap arc blow-out magnetic flux improves electric appliance arc extinguishing ability |
-
2006
- 2006-10-25 CN CN 200620108957 patent/CN200972833Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915893A (en) * | 2011-08-05 | 2013-02-06 | 北京人民电器厂有限公司 | Circuit breaker yoke device for arc striking |
| CN102420061A (en) * | 2011-08-06 | 2012-04-18 | 安徽鑫龙电器股份有限公司 | Arc extinguish chamber structure of automatic PC (Personal Computer) level dual power change-over switch |
| CN102420061B (en) * | 2011-08-06 | 2014-10-15 | 安徽鑫龙电器股份有限公司 | Arc extinguish chamber structure of automatic PC (Personal Computer) level dual power change-over switch |
| CN103930962A (en) * | 2011-11-12 | 2014-07-16 | 埃伦贝格尔及珀恩斯根有限公司 | Switching system |
| US9431197B2 (en) | 2011-11-12 | 2016-08-30 | Ellenberger & Poensgen Gmbh | Switching system |
| CN103930962B (en) * | 2011-11-12 | 2016-12-21 | 埃伦贝格尔及珀恩斯根有限公司 | Switching system |
| CN104157479A (en) * | 2014-09-03 | 2014-11-19 | 贵州长征开关制造有限公司 | Switch-on and switch-off mechanism of automatic transfer switching equipment |
| CN107045968A (en) * | 2016-02-05 | 2017-08-15 | 上海良信电器股份有限公司 | It is a kind of to strengthen the quick arc-striking structure of breaker breaking capacity |
| CN108389742A (en) * | 2018-04-27 | 2018-08-10 | 福州大学 | Reinforce the method that arc gap arc blow-out magnetic flux improves electric appliance arc extinguishing ability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Zhengtai Electromechanical & Electric Co., Ltd. Assignor: Zhengtai Electric Appliance Co., Ltd., Zhejiang Contract record no.: 2010330001023 Denomination of utility model: Automatic changover switch with quick arc extinguishing Granted publication date: 20071107 License type: Exclusive License Record date: 20100526 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071107 |
|
| EXPY | Termination of patent right or utility model |