CN2626038Y - Dual coil bistable permanent magnet operation mechanism - Google Patents
Dual coil bistable permanent magnet operation mechanism Download PDFInfo
- Publication number
- CN2626038Y CN2626038Y CN 03213855 CN03213855U CN2626038Y CN 2626038 Y CN2626038 Y CN 2626038Y CN 03213855 CN03213855 CN 03213855 CN 03213855 U CN03213855 U CN 03213855U CN 2626038 Y CN2626038 Y CN 2626038Y
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- CN
- China
- Prior art keywords
- iron core
- coil
- permanent magnet
- moving iron
- moving
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a double coil bistable state permanent magnetic operation mechanism and includes a coil, a moving iron core, a stationary iron core; the utility model is characterized in that a breaking coil and a closing coil are fixed on the stationary iron core, a permanent magnet body is fixed between the two coils, and a connecting rod is sleeved on the moving iron core. The utility model has the advantages of few parts, stable performance, free of maintenance in long period of operation and is especially suitable for vacuum switches.
Description
Affiliated technical field
The utility model relates to a kind of operating mechanism of High-Voltage Electrical Appliances vacuum switch, and particularly a kind of is the supporting twin coil bi-stable permanent magnetism operating mechanism of vacuum switch.
Background technology
At present, the vacuum switch that China High-Voltage Electrical Appliances use has obtained to use widely because of himself advantage, but has a lot of shortcomings for its supporting spring operating mechanism, and is many as number of spare parts, the characteristic instability, and long-term reliability is not high.
Summary of the invention
At the problem that existing Magnetic Actuator for Vacuum Circuit Breaker mechanism exists, the utility model provides a kind of twin coil bi-stable permanent magnetism operating mechanism.
The purpose of this utility model is achieved in that and comprises coil, static iron core, moving iron core, it is characterized in that on static iron core, being fixed with switching winding and closing coil, between two coils, be fixed with permanent magnet, permanent magnet is a neodymium iron boron cylindraceous, outer surface is a magnetic pole, inner surface is another magnetic pole, is interspersed with connecting rod on moving iron core.Moving iron core can be done two-way linear along axis and move in the enclosure space of static iron core and magnetic conduction cover plate formation, its operation principle is, the logical big electric current of forward of closing coil during combined floodgate, as long as the pulling force in moving iron core and the generation of static iron core end caps is moving the suction that produces between iron core and static iron core end cap greater than permanent magnet, moving iron core just moves to closing position from the separating brake position, and at this moment permanent magnet can remain on closing position by moving iron core end cap, static iron core.The logical big electric current of coil during separating brake.Produce pulling force between moving iron core and static iron core end cap, need only pulling force and load counter-force sum greater than closing retention force, moving iron core can leave closing position, and under the pulling force that electric current produces and the counter-force acting in conjunction of loading, moving iron core moves to the separating brake position.
The utility model has the advantages that it is few to have number of spare parts, stability of characteristics, long-time running is non-maintaining, is particularly suitable for vacuum switch supporting.
Description of drawings
Fig. 1 is the structural representation of the utility model twin coil bi-stable permanent magnetism operating mechanism.
Among the figure: 1 static iron core, 2 moving iron core 3,4 permanent magnets 5 switching windings 6 closing coils 7 connecting rods
Embodiment
On static iron core 1, be fixed with switching winding 5 and closing coil 6, between two coils, be fixed with permanent magnet 3,4, on moving iron core 2, be interspersed with connecting rod 7.Permanent magnet 3,4 is a neodymium iron boron cylindraceous, and outer surface is a magnetic pole, and inner surface is another magnetic pole, and surfaces externally and internally is a pair of N, the S utmost point (the outer S of interior N).Moving iron core 2 is than static iron core 1 a short switch over travel distance, and the external diameter of moving iron core 2 less than the internal diameter of static iron core 1 (greater than 0 and less than 0.5 millimeter scope in), moving iron core 2 can be done two-way linear along axis and move in the enclosure space of static iron core 1 and magnetic conduction cover plate formation, its operation principle is, the closing coil 6 logical big electric currents of forward during combined floodgate, need only at the pulling force that moves the generation of iron core 2 and static iron core 1 end caps greater than permanent magnet 3,4 suction that between moving iron core 2 and static iron core 1 end cap, produce, moving iron core 2 just moves to closing position from the separating brake position, and at this moment permanent magnet 3,4 by moving iron core 2 end caps, static iron core 1 can remain on the separating brake position.Switching winding 5 logical big electric currents during separating brake.Produce pulling force between moving iron core 2 and static iron core 1 end cap, as long as pulling force and load counter-force sum are moved iron core 2 and can be left closing position greater than closing retention force, under the pulling force that electric current produces and the counter-force acting in conjunction of loading, moving iron core 2 moves to the separating brake position.
Because the moving iron core 2 of permanent magnet mechanism divides resultant motion up and down, thus the connection by lever construction, and the moving contact that drives switch carries out deciliter action up and down, finishes the branch closing operation of switch.
Claims (3)
1, a kind of twin coil bi-stable permanent magnetism operating mechanism comprises coil, moving iron core, static iron core, it is characterized in that being fixed with on static iron core switching winding and closing coil, is fixed with permanent magnet between two coils, is interspersed with connecting rod on moving iron core.
2, twin coil bi-stable permanent magnetism operating mechanism according to claim 1 is characterized in that described permanent magnet is a neodymium iron boron cylindraceous, and its surfaces externally and internally is a pair of N, the S utmost point.
3, twin coil bi-stable permanent magnetism operating mechanism according to claim 1 it is characterized in that described moving iron core than the short switch over travel distance of static iron core, and the external diameter of moving iron core is less than the internal diameter of static iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213855 CN2626038Y (en) | 2003-06-27 | 2003-06-27 | Dual coil bistable permanent magnet operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213855 CN2626038Y (en) | 2003-06-27 | 2003-06-27 | Dual coil bistable permanent magnet operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2626038Y true CN2626038Y (en) | 2004-07-14 |
Family
ID=34242539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03213855 Expired - Fee Related CN2626038Y (en) | 2003-06-27 | 2003-06-27 | Dual coil bistable permanent magnet operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2626038Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783263B (en) * | 2010-02-04 | 2012-01-18 | 东南大学 | Bistable-state permanent magnet mechanism of parallel magnetic circuits |
| CN103325611A (en) * | 2013-05-23 | 2013-09-25 | 西安交通大学 | Separated magnetic-circuit permanent magnetic mechanism |
| CN103903923A (en) * | 2014-04-21 | 2014-07-02 | 国家电网公司 | Disconnector and operating mechanism thereof |
| WO2023195993A1 (en) * | 2022-04-08 | 2023-10-12 | Google Llc | Dual coil mass positioning system with variable oscillation frequency |
-
2003
- 2003-06-27 CN CN 03213855 patent/CN2626038Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783263B (en) * | 2010-02-04 | 2012-01-18 | 东南大学 | Bistable-state permanent magnet mechanism of parallel magnetic circuits |
| CN103325611A (en) * | 2013-05-23 | 2013-09-25 | 西安交通大学 | Separated magnetic-circuit permanent magnetic mechanism |
| CN103903923A (en) * | 2014-04-21 | 2014-07-02 | 国家电网公司 | Disconnector and operating mechanism thereof |
| WO2023195993A1 (en) * | 2022-04-08 | 2023-10-12 | Google Llc | Dual coil mass positioning system with variable oscillation frequency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |