CN201417683Y - Control circuit of bistable permanent magnetic actuator - Google Patents
Control circuit of bistable permanent magnetic actuator Download PDFInfo
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- CN201417683Y CN201417683Y CN2009200867196U CN200920086719U CN201417683Y CN 201417683 Y CN201417683 Y CN 201417683Y CN 2009200867196 U CN2009200867196 U CN 2009200867196U CN 200920086719 U CN200920086719 U CN 200920086719U CN 201417683 Y CN201417683 Y CN 201417683Y
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- control circuit
- switching tube
- capacitor
- bistable permanent
- permanent magnetism
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Abstract
The utility model relates to a control circuit of a bistable permanent magnetic actuator which belongs to the technical field of power equipment. The control circuit comprises a capacitor C, an opening coil, a closing coil and controllable switch tubes of VT1 and VT3, and the control circuit is characterized in that the controllable switch tubes of VT1 and VT3 are used for replacing the traditional freewheeling diode. The control circuit has the following advantages: 1, the control circuit can greatly reduce the coil volume and further design the structure to be smaller; 2, the control circuitcan reduce the response time of the mechanism and improve the action speed of the mechanism; and 3, the control circuit can reduce the capacity of the capacitor or reduce the voltage of pre-charge ofthe capacitor.
Description
Technical field
The utility model relates to a kind of bistable permanent magnetism operating mechanism control circuit, belongs to electrical equipment technical field.
Background technology
Bi-stable permanent magnetism operating mechanism is particularly more and more used on vacuum circuit-breaker in the power switch field.Along with increasing of high pressure, ultra-high voltage AC transmission engineering, bi-stable permanent magnetism operating mechanism is had higher requirement.Require not only that bi-stable permanent magnetism operating mechanism response is fast, the time dispersed little, realize synchronous divide-shut brake, but also require mechanism to operate by enough small-power powers, in order to adapt to the existing design of electric power system switch cubicle, also to guarantee mechanism's miniaturization as much as possible simultaneously.Yet present control circuit has limited bi-stable permanent magnetism operating mechanism satisfies above-mentioned whole requirements.
Summary of the invention
The purpose of this utility model is: the bistable permanent magnetism operating mechanism control circuit that a kind of volume is little, the response time short, required condenser capacity is little is provided.
The technical solution of the utility model is: a kind of bistable permanent magnetism operating mechanism control circuit, comprise capacitor C, switching winding, closing coil, switching tube VT1, VT3, it is characterized in that: also comprise switching tube VT2 and VT4, wherein, the collector electrode of switching tube VT1 and VT4 is connected with the two ends of capacitor C respectively; And both emitters are connected with the emitter of switching tube VT2, VT3 respectively; The collector electrode of switching tube VT2, VT3 is connected with the collector electrode of switching tube VT1, VT4 respectively; The two ends of switching winding connect the collector and emitter of switching tube VT2 respectively; The two ends of closing coil connect the collector and emitter of switching tube VT4 respectively; Controlled tr tube VT2 and VT4 can select full control such as power MOSFET, IGBT switch for use.
Aforesaid bistable permanent magnetism operating mechanism control circuit is characterized in that: described switching tube VT2 and VT4 are controlled tr tubes.
Aforesaid bistable permanent magnetism operating mechanism control circuit is characterized in that: described capacitor C is the broad sense accumulation power supply, can be common electrochemical capacitor, also can be the power supply of other types such as storage battery.
The beneficial effects of the utility model are: use controlled tr tube VT2 and VT4 to replace the fly-wheel diode that traditional control circuit uses, by control to VT2 and VT4, guarantee that the inoperative wire loop disconnects when the conducting of actuating coil loop, thereby can not produce induced current and excite reciprocal magnetic field, significantly reduce moving initiating number of ampere turns and maximum number of ampere turns unshakable in one's determination, so can reduce in-house temperature rise, and because the current density of lead has individual higher limit, just can reduce the volume of coil during design, thus can be with volume-diminished, the weight saving of mechanism.
Use controlled tr tube VT2 and VT4 to replace traditional fly-wheel diode,, can reduce the response time of mechanism, improve responsiveness for same mechanism structure parameter and power parameter.The response time that reduces mechanism can reduce the time that circuit bears unusual service conditions such as short circuit, and quick action can satisfy the requirement of high-voltage switch gear to opening velocity better.
Because reduced maximum number of ampere turns, so under the situation that satisfies the mechanism action requirement, can reduce the charging voltage of condenser capacity or capacitor.The charging voltage that reduces capacitor has realized reducing the requirement of small-power power operation capacitor volume and can save the shared space of capacitor.
Description of drawings
Fig. 1 is the schematic diagram of a kind of bistable permanent magnetism operating mechanism control circuit of the utility model embodiment.
Fig. 2 is the mechanism body structural representation that a kind of bistable permanent magnetism operating mechanism control circuit of the utility model embodiment is controlled.
Embodiment
The explanation of mark among Fig. 2, moving guide rod 1, end cap 2, moving iron core 3, switching winding 4, permanent magnet 5, yoke 6, closing coil 7.
Referring to Fig. 1, a kind of bistable permanent magnetism operating mechanism control circuit, comprise capacitor C, switching winding (being L1), closing coil (being L2), switching tube VT1, VT3 is characterized in that: also comprise switching tube VT2 and VT4, wherein, the collector electrode of switching tube VT1 and VT4 is connected with the two ends of capacitor C respectively; And both emitters are connected with the emitter of switching tube VT2, VT3 respectively; The collector electrode of switching tube VT2, VT3 is connected with the collector electrode of switching tube VT1, VT4 respectively; The two ends of switching winding connect the collector and emitter of switching tube VT2 respectively; The two ends of closing coil connect the collector and emitter of switching tube VT4 respectively; Controlled tr tube VT2 and VT4 can select full control such as power MOSFET, IGBT switch for use.Capacitor C by external circuit to its precharge, for mechanism provides excitatory energy; Switching tube VT1, VT2, VT3, VT4 are gate-controlled switch, the conducting of control circuit and shutoff.
Aforesaid bistable permanent magnetism operating mechanism control circuit is characterized in that: described switching tube VT2 and VT4 are controlled tr tubes.
Aforesaid bistable permanent magnetism operating mechanism control circuit is characterized in that: described capacitor C is the broad sense accumulation power supply, can be common electrochemical capacitor, also can be the power supply of other types such as storage battery.
Referring to Fig. 1, Fig. 2, the control mode of the bistable permanent magnetism operating mechanism control circuit of the utility model embodiment is as follows:
For the location status among Fig. 2, moving iron core 3 is in closing position, if carry out sub-switching operation, add triggering signal then need for switching tube VT1 and make it conducting, allow VT2, VT3, VT4 all be in cut-off state simultaneously, capacitor C gives switching winding 4 power supplies by switching tube VT1, drive moving unshakable in one's determination 3 and move upward, when motion puts in place, on-off switching tube VT1, open switching tube VT2, switching winding 4 is by switching tube VT2 loop afterflow.
When moving iron core 3 is in the separating brake position, if carry out closing operation, add triggering signal then need for switching tube VT3 and make it conducting, allow switching tube VT1, VT2, VT4 all be in cut-off state simultaneously, capacitor C gives closing coil 7 power supplies by switching tube VT3, drives moving iron core 3 and moves downward, when motion puts in place, on-off switching tube VT3 opens switching tube VT4, and closing coil 7 is by switching tube VT4 loop afterflow.
Claims (3)
1. a bistable permanent magnetism operating mechanism control circuit comprises capacitor C, switching winding, closing coil, switching tube VT1, VT3 is characterized in that: also comprise switching tube VT2 and VT4, wherein, the collector electrode of switching tube VT1 and VT4 is connected with the two ends of capacitor C respectively; And both emitters are connected with the emitter of switching tube VT2, VT3 respectively; The collector electrode of switching tube VT2, VT3 is connected with the collector electrode of switching tube VT1, VT4 respectively; The two ends of switching winding connect the collector and emitter of switching tube VT2 respectively; The two ends of closing coil connect the collector and emitter of switching tube VT4 respectively.
2. bistable permanent magnetism operating mechanism control circuit according to claim 1 is characterized in that: described switching tube VT2 and VT4 are controlled tr tubes.
3. bistable permanent magnetism operating mechanism control circuit according to claim 1 is characterized in that: described capacitor C is the broad sense accumulation power supply, can be common electrochemical capacitor, also can be the power supply of other types such as storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200867196U CN201417683Y (en) | 2009-06-19 | 2009-06-19 | Control circuit of bistable permanent magnetic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200867196U CN201417683Y (en) | 2009-06-19 | 2009-06-19 | Control circuit of bistable permanent magnetic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201417683Y true CN201417683Y (en) | 2010-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200867196U Expired - Lifetime CN201417683Y (en) | 2009-06-19 | 2009-06-19 | Control circuit of bistable permanent magnetic actuator |
Country Status (1)
| Country | Link |
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| CN (1) | CN201417683Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901718A (en) * | 2010-07-27 | 2010-12-01 | 国网电力科学研究院 | Direct-acting vacuum circuit breaker with bistable permanent magnet actuators |
| CN101582338B (en) * | 2009-06-19 | 2011-06-01 | 国网电力科学研究院武汉南瑞有限责任公司 | Bistable permanent magnetism operating mechanism control circuit |
| WO2012144965A1 (en) * | 2011-04-19 | 2012-10-26 | Bugaychuk Viktor Mychaylovych | Bistable electromagnetic drive for a switching device |
| CN103560040A (en) * | 2013-11-08 | 2014-02-05 | 宁夏天地经纬电力设备工程有限公司 | Permanent magnetic operating mechanism of intelligent circuit breaker |
| GB2525065B (en) * | 2014-02-03 | 2021-09-29 | S & C Electric Co | Vacuum switching devices |
| CN114006401A (en) * | 2021-10-25 | 2022-02-01 | 无锡市欧瑞杰电子科技有限公司 | Double-coil permanent magnet driving circuit |
-
2009
- 2009-06-19 CN CN2009200867196U patent/CN201417683Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582338B (en) * | 2009-06-19 | 2011-06-01 | 国网电力科学研究院武汉南瑞有限责任公司 | Bistable permanent magnetism operating mechanism control circuit |
| CN101901718A (en) * | 2010-07-27 | 2010-12-01 | 国网电力科学研究院 | Direct-acting vacuum circuit breaker with bistable permanent magnet actuators |
| WO2012144965A1 (en) * | 2011-04-19 | 2012-10-26 | Bugaychuk Viktor Mychaylovych | Bistable electromagnetic drive for a switching device |
| CN103560040A (en) * | 2013-11-08 | 2014-02-05 | 宁夏天地经纬电力设备工程有限公司 | Permanent magnetic operating mechanism of intelligent circuit breaker |
| GB2525065B (en) * | 2014-02-03 | 2021-09-29 | S & C Electric Co | Vacuum switching devices |
| CN114006401A (en) * | 2021-10-25 | 2022-02-01 | 无锡市欧瑞杰电子科技有限公司 | Double-coil permanent magnet driving circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100303 Effective date of abandoning: 20090619 |