CN201975320U - Permanent-magnet repulsion mechanism - Google Patents
Permanent-magnet repulsion mechanism Download PDFInfo
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- CN201975320U CN201975320U CN2011201050809U CN201120105080U CN201975320U CN 201975320 U CN201975320 U CN 201975320U CN 2011201050809 U CN2011201050809 U CN 2011201050809U CN 201120105080 U CN201120105080 U CN 201120105080U CN 201975320 U CN201975320 U CN 201975320U
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- repulsion coil
- permanent magnet
- coil
- repulsion
- moving bar
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Abstract
The utility model provides a permanent-magnet repulsion mechanism for a vacuum breaker, comprising a moving rod, and a close repulsion coil, a fixing repulsion coil and an open repulsion coil which are arranged on the upper part of the moving rod one by one, wherein the fixing repulsion coil and the moving rod are connected integrally; the close repulsion coil and the open repulsion coil are separated from the moving rod; an electric magnet is arranged on the lower part of the moving rod; and a permanent magnet is mounted in the electric magnet; and the mechanism further comprises an open spring which is arranged below the electric magnet. Compared with a traditional vacuum breaker, the breaker with the permanent-magnet repulsion mechanism is capable of effectively increasing the closing and opening speed. Moreover, the mechanism has simple structure and reliable performance and is suitable for protecting high-power power electronic converter.
Description
Technical field
The utility model relates to a kind of permanent magnet expulsive force mechanism, particularly a kind of permanent magnet expulsive force mechanism that is used to protect the vacuum circuit-breaker of high-power electric and electronic current transformer.
Background technology
The permanent magnet expulsive force mechanism of vacuum circuit-breaker (below, be called for short circuit breaker) realizes closing a floodgate with permanent magnet keeping and a kind of novel electromagnetism actuating structure that separating brake keeps, perhaps only permanent magnet is kept as closing a floodgate sometimes and does not do the separating brake maintenance.In general, be divided into two kinds of monostable and bistable states according to traditional permanent magnetic operating principle.No matter the bistable permanent magnetic repulsive force mechanism is meant circuit breaker at separating brake position or closing position, and its confining force is all provided by permanent magnet, and it can be divided into symmetrical structure and be called not only twin coil formula and asymmetric structure but also be called the unicoil formula.Monostable permanent magnetic mechanism is meant circuit breaker when closing position, and its confining force is provided by permanent magnet, is then provided by tripping spring when the separating brake position.
At present, more advanced circuit breaker technology all is to serve as the mode that the basis adopts Electromagnetically-operating, permanent magnetism to keep with permanent magnet expulsive force mechanism on the market, and element is few, course of action is simple, thereby guarantee operating reliability, reduced failure rate, for its intellectuality, automation control are laid a good foundation.But, also there are some problems: such as the quality problems of capacitor energy-storage travelling wave tube, electronic branch, the problem such as unreliable of closing a floodgate, under situation about having a power failure, can not overhaul and debug or the like, the existence of these problems, cause some bad influences to the user, cause integrated permanent-magnet vacuum circuit-breaker technology is that all right ripe, the large-scale promotion time such as does not also arrive at wrong understanding.Seriously influenced further developing of this technology.
Summary of the invention
The utility model is finished in view of above problem, its purpose is to provide the employed permanent magnet expulsive force of a kind of vacuum circuit-breaker mechanism, it is the permanent magnet mechanism with two repulsion coils, bistable state, pressure-bearing type installation, control breaking-closing operating with twin coil during operation, when being in branch, closing position, adopt circuit breaker permanent magnetism to keep, simple and reliable for structure, and the divide-shut brake coil current is less, and low in energy consumption.
The permanent-magnet operating mechanism that the utility model provides is characterized in that, comprising: moving bar; The combined floodgate repulsion coil that sets gradually on the top of above-mentioned moving bar, fixedly repulsion coil and separating brake repulsion coil, wherein, said fixing repulsion coil and above-mentioned moving bar connect as one, and above-mentioned combined floodgate repulsion coil separates setting with above-mentioned separating brake repulsion coil with above-mentioned moving bar; Electromagnet in that the bottom of above-mentioned moving bar is provided with is equipped with permanent magnet in the inside of above-mentioned electromagnet; Tripping spring with the below that is arranged on above-mentioned electromagnet.
In addition, according to permanent-magnet operating mechanism of the present utility model, wherein, below above-mentioned tripping spring, be provided with the pressure fixing nut.
In addition, according to permanent-magnet operating mechanism of the present utility model, wherein, in the power supply circuits for above-mentioned combined floodgate repulsion coil, said fixing repulsion coil, above-mentioned separating brake repulsion coil and above-mentioned electromagnet, also be provided with the device that to power by hand power.
Permanent magnet expulsive force of the present utility model mechanism, being applied under the situation of vacuum circuit-breaker, when circuit breaker was in "on" position, combined floodgate repulsion coil and electromagnet can be switched on simultaneously, and the dynamic/static contact of circuit breaker is realized quick-make.Behind the closure state, the tripping spring in the permanent magnet expulsive force mechanism can carry out energy storage, and can play certain cushioning effect.When circuit breaker was in gate-dividing state, separating brake repulsion coil and electromagnet can be switched on simultaneously, and the dynamic/static contact of the circuit breaker of former closure (connection) state can separate fast.More traditional vacuum circuit-breaker, the circuit breaker of having used permanent magnet expulsive force of the present utility model mechanism can improve the speed of divide-shut brake action effectively, adopts when being suitable for the protection to the high-power electric and electronic current transformer.
Description of drawings
Fig. 1 is the integrally-built figure of expression permanent magnet expulsive force of the present utility model mechanism.
1-moves bar; 2-combined floodgate repulsion coil; 3-is the repulsion coil fixedly; 4-separating brake repulsion coil; The 5-permanent magnet; The 6-electromagnet; The 7-tripping spring; 8-pressure fixing nut.
Embodiment
Below, with reference to accompanying drawing, execution mode of the present utility model is described.
Fig. 1 shows the overall structure of permanent magnet expulsive force of the present utility model mechanism.As shown in Figure 1, in the permanent magnet expulsive force mechanism, moving bar 1 interconnects by insulated tension pole (not shown) and moving contact in the circuit breaker of having used this permanent magnet expulsive force mechanism, in general this insulated tension pole adopts insulating material such as pottery, glass fibre or epoxy resin usually, makes the moving contact of above-mentioned circuit breaker be connected with the mode of moving bar 1 with insulation.On the top of moving bar 1, be disposed with combined floodgate repulsion coil 2, fixedly repulsion coil 3 and separating brake repulsion coil 4 from the top.Combined floodgate repulsion coil 2 and separating brake repulsion coil 4 are separately fixed at the shell of above-mentioned circuit breaker or are kept by other parts that can play fixation, with respect to moving bar 1 these two kinds of repulsion coils is fixed, the position that is the two remains unchanged, and can not move up and down by tappet 1.Relative therewith, fixedly repulsion coil 3 connects as one with moving bar 1, moves up and down with moving bar 1.Combined floodgate repulsion coil 2 and separating brake repulsion coil 4 lay respectively on two directions of motion of fixing repulsion coil 3, and the standoff distance of the two becomes the move distance of the moving contact of above-mentioned circuit breaker.
The bottom of moving bar 1 is connected with electromagnet 6, in the inside of electromagnet 6 permanent magnet 5 is installed.When electromagnet 6 moves upward, driving moving bar 1 moves upward, fixedly repulsion coil 3 also moves upward thereupon, at this moment, fixedly the opposite electric current of direction of circulation produces repulsive force in repulsion coil 3 and the separating brake repulsion coil 4 between the two, and this repulsive force fixedly repulsion coil 3 further upwards promotes with moving bar 1.When electromagnet 6 moves downward, driving moving bar 1 moves downward, fixedly repulsion coil 3 also moves downward thereupon, at this moment, fixedly the opposite electric current of direction of circulation produces repulsive force in repulsion coil 3 and the combined floodgate repulsion coil 2 between the two, and this repulsive force fixedly repulsion coil 3 further spurs downwards with moving bar 1.In addition, near the lower end of moving bar 1, be provided with tripping spring 7, in the motion process of moving bar 1, tripping spring 7 can change with energy storage and release energy, help separating fast of moving contact and fixed contact in the above-mentioned circuit breaker, and in above-mentioned breaker closing, play certain cushioning effect.On moving bar 1, the below of tripping spring 7 is fixed with pressure fixing nut 8, is used for regulating the pressure of tripping spring 7.
To two states and two kinds of motion processes of permanent magnet expulsive force of the present utility model mechanism be described below.
When above-mentioned circuit breaker is in gate-dividing state, no current passes through in combined floodgate repulsion coil 2 and the separating brake repulsion coil 4, the iron core that permanent magnet 5 is had an effect with electromagnet 6 attracts each other, insulated tension pole and moving contact in the moving bar 1 related above-mentioned circuit breaker are in lowest positions (being open position), and tripping spring 7 remains static.Fixed contact separates with moving contact in the above-mentioned circuit breaker, and circuit is in off-state.
When above-mentioned circuit breaker carries out closing operation, circulation is reverse electric current with fixing repulsion coil 3 in combined floodgate repulsion coil 2, produce attraction between the two, and circulation and fixing repulsion coil 3 are in the same way electric current in separating brake repulsion coil 4, produce repulsive force between the two.And, also circulating current in the electromagnet 6, thus the dynamic/static contact of above-mentioned circuit breaker is realized quick-make.In addition, the tripping spring 7 behind the closure state carries out energy storage, and can play certain cushioning effect.
When above-mentioned circuit breaker is in "on" position, no current passes through in combined floodgate repulsion coil 2 and the separating brake repulsion coil 4, and circulating current in the electromagnet 6, permanent magnet 5 is had an effect and the unshakable in one's determination of electromagnet 6 repels mutually, insulated tension pole in the moving bar 1 related above-mentioned circuit breaker and moving contact are in position (being on-position) topmost, and tripping spring 7 is in stretching energy storage state.Fixed contact contacts closure in the above-mentioned circuit breaker with moving contact, and circuit is in on-state.
When above-mentioned circuit breaker during at sub-switching operation, circulation and fixing repulsion coil 3 are electric current in the same way in combined floodgate repulsion coil 2, produce repulsive force between the two, and circulation is reverse electric current with fixing repulsion coil 3 in separating brake repulsion coil 4, produces attraction between the two.Also circulating current in the electromagnet 6, thus the dynamic/static contact that is in the above-mentioned circuit breaker of closure state before making it can separate fast.More traditional circuit breaker has been used being swift in motion of circuit breaker of the present utility model, adopts when being very suitable for the protection to the high-power electric and electronic current transformer.
When above-mentioned circuit breaker was in combined floodgate or gate-dividing state, no current passed through in combined floodgate repulsion coil 2 and the separating brake repulsion coil 4, and the magnetoimpedance passage that permanent magnet 5 utilizes electromagnet 6 to provide will move bar 1 and remain on the high-low limit position, and without any need for mechanical lock buckle.When actuating signal, electric current in combined floodgate repulsion coil 2 and the separating brake repulsion coil 4 produces magnetic potential, the magnetic field superposition that magnetic field that is produced by coil in the moving bar 1 and permanent magnet produce is synthetic, under the effect of resultant magnetic field power, in official hour, finish connection, disconnection task with the speed drive switch main body of regulation.The end of moving bar 1 is an end that is maintained at stroke by the effect of tripping spring 7, and at the other end of stroke, keeps by electromagnetic energy.Permanent magnet expulsive force mechanism is by the special combination with electromagnet 6 and permanent magnet 5, realize the repertoire of conventional circuit breaker operating mechanism part: replace traditional maintenance function that latching device is realized extreme position of taking off, energy needed when providing operation by the divide-shut brake coil by permanent magnet 5.Because the change of operation principle, the parts sum of entire mechanism significantly reduces, and the global reliability of mechanism might be largely increased.Because the characteristics of permanent magnet mechanism itself, can improve the reliability of having used circuit breaker of the present utility model, the on/off switch characteristic is only relevant with coil parameter again simultaneously, therefore the divide-shut brake characteristic of permanent magnet mechanism can be controlled by electronics or microsystem, realize the Based Intelligent Control of speed characteristics, and can have self-checking function.
In addition, for combined floodgate repulsion coil 2, fixedly repulsion coil 3 and separating brake repulsion coil 4, and in the power supply circuits of electromagnet 6, can also be provided with can be by the device of hand power power supply, that is, in the time can not utilizing common external power source, can carry out electric power by this hand power electric supply installation and supply with, so that circuit breaker moves, realize connection, the disconnection of switch.
Claims (3)
1. a permanent magnet expulsive force mechanism is characterized in that, comprising:
Moving bar;
The combined floodgate repulsion coil that sets gradually on the top of described moving bar, fixedly repulsion coil and separating brake repulsion coil, wherein, described fixedly repulsion coil and described moving bar connect as one, and described combined floodgate repulsion coil separates setting with described separating brake repulsion coil with described moving bar;
Electromagnet in that the bottom of described moving bar is provided with is equipped with permanent magnet in the inside of described electromagnet; With
Be arranged on the tripping spring of the below of described electromagnet.
2. permanent magnet expulsive force as claimed in claim 1 mechanism, its feature is being:
Below described tripping spring, be provided with the pressure fixing nut.
3. permanent magnet expulsive force as claimed in claim 2 mechanism is characterized in that:
In the power supply circuits of described combined floodgate repulsion coil, described fixedly repulsion coil, described separating brake repulsion coil and described electromagnet, also be provided with the device that to power by hand power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201050809U CN201975320U (en) | 2011-04-12 | 2011-04-12 | Permanent-magnet repulsion mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201050809U CN201975320U (en) | 2011-04-12 | 2011-04-12 | Permanent-magnet repulsion mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975320U true CN201975320U (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201050809U Expired - Fee Related CN201975320U (en) | 2011-04-12 | 2011-04-12 | Permanent-magnet repulsion mechanism |
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| CN (1) | CN201975320U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515163A (en) * | 2013-09-10 | 2014-01-15 | 华中科技大学 | Medium-high-voltage ultrahigh-speed switch and direct-current breaker |
| CN104538247A (en) * | 2015-01-15 | 2015-04-22 | 南车株洲电力机车有限公司 | Vacuum circuit breaker and vacuum circuit breaker driving device |
| CN104851740A (en) * | 2015-05-28 | 2015-08-19 | 东南大学 | Long stroke permanent magnetic actuator with auxiliary coil for high-voltage vacuum circuit breaker |
| CN108962667A (en) * | 2018-07-05 | 2018-12-07 | 山东普益电气有限公司 | A kind of high pressure bistable state side activated speed vacuum circuit breaker |
| CN109341866A (en) * | 2018-11-07 | 2019-02-15 | 大连理工大学 | A kind of self power generation intelligent thermometer |
| CN111554541A (en) * | 2020-06-29 | 2020-08-18 | 广东电网有限责任公司东莞供电局 | Vacuum circuit breaker |
| CN112443526A (en) * | 2020-10-26 | 2021-03-05 | 国网上海市电力公司 | Circuit breaker, hydraulic control valve and hydraulic operating mechanism |
| CN112927981A (en) * | 2021-01-07 | 2021-06-08 | 天津平高智能电气有限公司 | Opening electromagnet of spring operating mechanism |
| CN114093694A (en) * | 2021-10-15 | 2022-02-25 | 国网浙江省电力有限公司嘉善县供电公司 | Electromagnetic repulsion force quick mechanical switch |
| CN114625031A (en) * | 2021-12-14 | 2022-06-14 | 浙江大学 | Control system for high-speed electromagnetic repulsion mechanism |
| CN117410129A (en) * | 2023-10-26 | 2024-01-16 | 武汉大学 | Accurate phase control closing device of parallel compensation capacitor bank based on fast switch |
-
2011
- 2011-04-12 CN CN2011201050809U patent/CN201975320U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515163B (en) * | 2013-09-10 | 2016-04-20 | 华中科技大学 | A kind of mesohigh ultra fast breaker and DC circuit breaker |
| CN103515163A (en) * | 2013-09-10 | 2014-01-15 | 华中科技大学 | Medium-high-voltage ultrahigh-speed switch and direct-current breaker |
| CN104538247A (en) * | 2015-01-15 | 2015-04-22 | 南车株洲电力机车有限公司 | Vacuum circuit breaker and vacuum circuit breaker driving device |
| CN104851740A (en) * | 2015-05-28 | 2015-08-19 | 东南大学 | Long stroke permanent magnetic actuator with auxiliary coil for high-voltage vacuum circuit breaker |
| CN104851740B (en) * | 2015-05-28 | 2017-06-30 | 东南大学 | A kind of long-stroke permanent magnet operating mechanism of the high-pressure vacuum breaker with ancillary coil |
| CN108962667A (en) * | 2018-07-05 | 2018-12-07 | 山东普益电气有限公司 | A kind of high pressure bistable state side activated speed vacuum circuit breaker |
| CN108962667B (en) * | 2018-07-05 | 2023-09-15 | 山东正本电气有限公司 | High-voltage bistable side-driven high-speed vacuum circuit breaker |
| CN109341866A (en) * | 2018-11-07 | 2019-02-15 | 大连理工大学 | A kind of self power generation intelligent thermometer |
| CN111554541B (en) * | 2020-06-29 | 2022-05-27 | 广东电网有限责任公司东莞供电局 | Vacuum circuit breaker |
| CN111554541A (en) * | 2020-06-29 | 2020-08-18 | 广东电网有限责任公司东莞供电局 | Vacuum circuit breaker |
| CN112443526A (en) * | 2020-10-26 | 2021-03-05 | 国网上海市电力公司 | Circuit breaker, hydraulic control valve and hydraulic operating mechanism |
| CN112443526B (en) * | 2020-10-26 | 2023-09-29 | 国网上海市电力公司 | Circuit breaker, hydraulic control valve and hydraulic operating mechanism |
| CN112927981B (en) * | 2021-01-07 | 2023-08-08 | 天津平高智能电气有限公司 | Separating brake electromagnet of spring operating mechanism |
| CN112927981A (en) * | 2021-01-07 | 2021-06-08 | 天津平高智能电气有限公司 | Opening electromagnet of spring operating mechanism |
| CN114093694A (en) * | 2021-10-15 | 2022-02-25 | 国网浙江省电力有限公司嘉善县供电公司 | Electromagnetic repulsion force quick mechanical switch |
| CN114625031A (en) * | 2021-12-14 | 2022-06-14 | 浙江大学 | Control system for high-speed electromagnetic repulsion mechanism |
| CN117410129A (en) * | 2023-10-26 | 2024-01-16 | 武汉大学 | Accurate phase control closing device of parallel compensation capacitor bank based on fast switch |
| CN117410129B (en) * | 2023-10-26 | 2024-07-09 | 武汉大学 | Accurate phase control closing device of parallel compensation capacitor bank based on fast switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEBAO ELECTRIC (HANGZHOU) GROUP CO., LTD. Free format text: FORMER OWNER: ZHEBAO SWITCH (HANGZHOU) CO., LTD. Effective date: 20140620 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lin Peng Inventor after: Shu Lianghua Inventor after: Jin Gangfeng Inventor before: Hu Yi Inventor before: Jin Gangfeng Inventor before: Wang Rongyan |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HU YI JIN GANGFENG WANG RONGYAN TO: LIN PENG SHU LIANGHUA JIN GANGFENG |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140620 Address after: Hangzhou City, Zhejiang province 310021 Jianqiao Yu Zhanglu No. 88 Patentee after: Zhebao Electric (Hangzhou) Group Co., Ltd. Address before: Hangzhou City, Zhejiang province 310021 Jianggan District Jianqiao Yu Zhanglu No. 88 Patentee before: Zhebao Switch (Hangzhou) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20160412 |