CN205723330U - A kind of high-speed switch based on permanent magnet holding mechanism - Google Patents
A kind of high-speed switch based on permanent magnet holding mechanism Download PDFInfo
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- CN205723330U CN205723330U CN201620362749.5U CN201620362749U CN205723330U CN 205723330 U CN205723330 U CN 205723330U CN 201620362749 U CN201620362749 U CN 201620362749U CN 205723330 U CN205723330 U CN 205723330U
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- iron core
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- permanent magnet
- static iron
- repulsion
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- 230000007246 mechanism Effects 0.000 title claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 88
- 230000003068 static effect Effects 0.000 claims abstract description 45
- 238000004804 winding Methods 0.000 claims abstract description 8
- 239000012212 insulator Substances 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 abstract description 16
- 238000002679 ablation Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002500 effect on skin Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
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Abstract
This utility model relates to a kind of high-speed switch based on permanent magnet holding mechanism.It is characterized in: on described lower guide rod (4), be set with repulsion dish (6), is arranged above switching winding (5) at this repulsion dish (6) and closing coil (7) is thereunder installed；It is arranged above upper holding static iron core with dynamic iron core (9) in described holding, this is provided with in the middle of holding static iron core combined floodgate and keeps permanent magnet (11), and with dynamic iron core (9) lower section, lower holding static iron core is installed in this holding, separating brake is installed in the middle of this lower holding static iron core and keeps permanent magnet (14).This utility model provides the rapid repulsion switch kept based on permanent magnetism that a kind of result is simple, quick action, working link are few, reliability is high, switch opening velocity can be effectively improved, by fault current zero point detection technique, shorten the arc time, alleviate contact ablation, improve breaking capacity of breaker.
Description
Technical field
This utility model relates to a kind of high-speed switch based on permanent magnet holding mechanism.
Background technology
Although traditional mechanical switch carrying load ability is strong, turn on stable advantage, but response speed
Slowly, typically 5～about 20ms, it is impossible to meet some needs quick acting requirements；Power electronics is opened
Pass response speed is very fast, but its on-state loss is excessive, and voltage endurance capability is low.
Utility model content
The purpose of this utility model be to provide a kind of have very fast opening velocity based on permanent magnetism keep machine
The high-speed switch of structure, it is possible to complete interrupting process in 5ms.
A kind of high-speed switch based on permanent magnet holding mechanism, goes out including the top guide bar being sequentially connected with, vacuum
Arc chamber, middle guide rod, insulator, lower guide rod and holding are with moving iron core, and it is particular in that: in institute
State and on lower guide rod, be set with repulsion dish, be arranged above switching winding at this repulsion dish and thereunder pacify
Equipped with closing coil；It is arranged above holding static iron core, on this with dynamic iron core in described holding
Combined floodgate is installed in the middle of holding static iron core and keeps permanent magnet, and install below dynamic iron core in this holding
There is lower holding static iron core, separating brake is installed in the middle of this lower holding static iron core and keeps permanent magnet.
Wherein close a floodgate and keep permanent magnet lower end shorter than upper holding static iron core lower end, thus use in upper holding
Static iron core lower end forms groove as upper air gap；Wherein separating brake keeps permanent magnet upper end to keep with quiet than lower
Iron core upper end is short, thus forms groove in lower holding static iron core upper end as lower air gap.
On repulsion dish, wherein have some through holes.
This utility model provides that a kind of result is simple, quick action, working link are few, reliability
The high rapid repulsion switch kept based on permanent magnetism, can be effectively improved switch opening velocity, by event
Barrier current zero detection technique, shortens the arc time, alleviates contact ablation, improves chopper and cut-offs energy
Power.Additionally in the case of ensureing mechanical strength, alleviate motion parts matter by punching on repulsion dish
Amount, further increases its breaking speed.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
Detailed description of the invention
As it is shown in figure 1, this utility model provides a kind of high-speed switch based on permanent magnet holding mechanism,
Including the top guide bar 1 being sequentially connected with, vacuum interrupter 2, middle guide rod, insulator 3, lower guide rod 4 and
Keep, with dynamic iron core 9, described lower guide rod 4 being set with repulsion dish 6, above this repulsion dish 6
Switching winding 5 is installed and closing coil 7 is thereunder installed；Keep with dynamic iron core 9 described
It is arranged above holding static iron core 8, this is provided with in the middle of holding static iron core 8 combined floodgate and protects
Hold permanent magnet 11, and this holding with dynamic iron core 9 below lower holding static iron core 10 is installed, at this
Separating brake is installed in the middle of lower holding static iron core 10 and keeps permanent magnet 14.
Wherein close a floodgate and keep permanent magnet 11 lower end shorter (i.e. at Vertical Square than upper holding static iron core 8 lower end
Upwards close a floodgate and keep permanent magnet 11 shorter than upper holding static iron core 8, owing to upper combined floodgate keeps permanent magnet
11 is concordant with upper holding static iron core 8 upper end, therefore upper close a floodgate keep permanent magnet 11 lower end relative to
There is recessed formation gap upper holding static iron core lower end 8；Separating brake keeps permanent magnet 14 and lower holding to use
It is also adopted by same structure at static iron core 10), thus form groove in upper holding static iron core 8 lower end and make
For upper air gap 12；Wherein separating brake keeps permanent magnet 14 upper end shorter than lower holding static iron core 10 upper end,
Thus form groove in lower holding static iron core 10 upper end as lower air gap 13.Additionally at repulsion dish 6
On have some through holes.
Embodiment 1:
High-speed switch of the present utility model is mainly kept part and electromagnetic repulsion force actuating part group by permanent magnetism
Become.
1) high-speed switch of the present utility model employing column type, axially symmetric structure, wherein: permanent magnetism keeps
Part, for providing separating brake retentivity and closing retention force for the arc-chutes contact in chopper, makes open circuit
Device is in stable gate-dividing state or "on" position；Electromagnetic repulsion force actuating part point, closing operation
During provide electromagnetic force, drive repulsion dish 6, by guide rod drive vacuum interrupter 2 moving contact and
Keep moving with dynamic iron core 9, make chopper be become closing a floodgate from separating brake, or become separating brake from combined floodgate.
2) during permanent magnet embeds holding static iron core, the wherein permanent magnet upper and lower side in holding static iron core
Fluting, leaves air gap；Keep being connected with guide rod with dynamic iron core 9, by guide rod, moving contact is maintained at
Combined floodgate/open position.Permanent magnetism keeps operation principle partly as described below: when chopper is in closing position
When putting, keep contacting with holding static iron core lower surface with dynamic iron core 9 upper surface, the permanent magnet of embedding
Form magnetic circuit by holding static iron core and holding with dynamic iron core 9, produce keeping using on dynamic iron core 9
One permanent magnetic upwards, the dynamic of vacuum interrupter 2 is touched by this permanent magnetic by guide rod, repulsion dish 6
Head is maintained at closing position；When chopper is in open position, keep with dynamic iron core 9 lower surface with
Keeping contacting with static iron core upper surface, the permanent magnet of embedding is by holding static iron core and keeps with dynamic ferrum
Core 9 forms magnetic circuit, is keeping with moving one downward permanent magnetic of generation on iron core 9, and this permanent magnetic leads to
Cross guide rod, the moving contact of vacuum interrupter 2 is maintained at open position by repulsion dish 6.
3) electromagnetic repulsion force actuating part mainly includes repulsion dish 6, switching winding 5 and closing coil 7.
Switching winding 5 is positioned at the top of repulsion dish 6, and closing coil 7 is positioned at the lower section of repulsion dish 6, repulsion
Dish 6 is connected with guide rod, drives the moving contact motion of vacuum interrupter 2.Electromagnetic repulsion force actuating part work
Making principle as follows: when chopper needs sub-switching operation, corresponding switching winding 5 passes through pulse current,
Due to electromagnetic induction principle, repulsion dish 6 produces through eddy current effect on repulsion dish 6, produces sensing
Eddy current, the downward eddy current repulsion of generation makes repulsion dish 6 move downward, and repulsion dish 6 is by guide rod band
Dynamic holding, moves downward with the moving contact one piece of dynamic iron core 9 and vacuum interrupter 2, separating brake complete after by
Permanent magnetism holding part holds it in closing position.
When chopper needs closing operation, corresponding closing coil 7 is by pulse current, due to electricity
Magnetic induction principle, repulsion dish 6 produces through eddy current effect and produces inductive loop on repulsion dish 6,
The eddy current repulsion upwards produced makes repulsion dish 6 move upward, and repulsion dish 6 is driven by guide rod and keeps
Move upward with the moving contact one piece of dynamic iron core 9 and vacuum interrupter 2, protected by permanent magnetism after having closed a floodgate
Hold part and hold it in open position.
4) there is air gap because of holding when contacting with between dynamic iron core 9 with two holding static iron cores, work as guarantor
Holding when leaving holding static iron core with dynamic iron core 9 one, permanent magnetic retentivity reduces rapidly, decreases forever
The impact in repulsive force mechanism motor process of the magnetic retentivity.
For improving opening velocity further, in the case of ensureing mechanical strength, it is contemplated that the collection of eddy current
Skin effect, can alleviate motion parts quality at repulsion dish 6 along its axle upward perforating but not change electromagnetism
Repulsion size, and then improve movement velocity.
Using method of the present utility model and operation principle be:
As it is shown in figure 1, now operating mechanism is in "on" position, permanent magnet 11 is kept to provide by closing a floodgate
Magnetic force holding is maintained at closing position with dynamic iron core 9.Close a floodgate and keep permanent magnet portion and keep using
Having air gap between dynamic iron core 9, holding permanent magnet by holding static iron core and keeps with dynamic iron core 9
Form the magnetic circuit of Guan Bi, make holding produce permanent magnetism retentivity upwards with dynamic iron core 9, by guide rod and
Repulsion dish 6, makes the moving contact of vacuum interrupter 2 reliably be maintained at closing position.When needs are carried out point
During lock operation, to switching winding 5 current pulse, then can produce eddy current, repulsion on repulsion dish 6
Dish 6 down moves under the effect of eddy current effect, by guide rod, drives and keeps with dynamic iron core 9 with true
The moving contact one piece of empty arc-chutes 2 moves downward, when keep with dynamic iron core 9 and holding static iron core it
Between air gap more than the width of upper air gap 12 time, according to the magnetic line of force always by the little place of magnetic resistance,
Permanent magnet will form magnetic circuit by holding static iron core and upper air gap 12, keep with institute on dynamic iron core 9
The magnetic force being subject to reduces rapidly.By reducing the impact on motor process of the permanent magnetism retentivity, can improve point
Lock speed.When reaching open position, holding is protected by the magnetic force that permanent magnet produces with dynamic iron core 9 is stable
Hold at open position.
When mechanism is in gate-dividing state, separating brake holding is used dynamic by the magnetic force keeping permanent magnet 14 to provide
Iron core 9 is maintained at open position.Under separating brake keeps permanent magnet portion and keeps having between dynamic iron core 9
Air gap 13, holding permanent magnet by holding static iron core and keeps the magnetic forming Guan Bi with dynamic iron core 9
Road, makes holding produce downward permanent magnetism retentivity with dynamic iron core 9, by guide rod and repulsion dish 6, makes
The moving contact of vacuum interrupter 2 is reliably maintained at open position.When needs carry out closing operation, give
Closing coil 7 current pulse, then can produce eddy current on repulsion dish 6, and repulsion dish 6 is imitated at eddy current
Up move under the effect answered, by guide rod, the dynamic iron core 9 of drive holding use and vacuum interrupter 2
Moving contact one piece moves upward, when keeping being more than with dynamic air gap between iron core 9 and holding static iron core
During the width of lower air gap 13, according to the magnetic line of force always by the little place of magnetic resistance, permanent magnet will pass through
Holding static iron core and lower air gap 13 form magnetic circuit, keep rapid with magnetic force suffered on dynamic iron core 9
Reduce.When reaching closing position, holding is kept by the magnetic force that permanent magnet produces with dynamic iron core 9 is stable
At closing position.
For improving opening velocity further, in the case of ensureing mechanical strength, it is contemplated that the collection of eddy current
Skin effect, repulsion dish 6 radially on punching can alleviate motion parts quality but not change electricity
Magnetic repulsion size, and then improve movement velocity.
This utility model provides a kind of rapid repulsion switch kept based on permanent magnetism, owing to have employed electricity
Magnetic repulsion mechanism and permanent magnetism maintaining part split-phase combine, and have both advantages concurrently: repulsive force mechanism its there is excitation
Time is short, can reach 1ms, simple in construction, it is possible to carry out point/closing operation within the extremely short time；
Permanent magnetism holding part is kept by separating brake and combined floodgate is held apart at, and shortens magnetic circuit, can under very small volume
Reach the biggest retentivity, eliminate mechanism simultaneously and thread off when divide-shut brake position and fastener system is brought
Harmful effect.Permanent magnet only retains holding part, removes tradition permanent magnet mechanism coil drive part,
Keep dynamic iron core to be connected with repulsion dish 6 through guide rod, by electromagnetic repulsion force mechanism drive its move to conjunction/
Open position.The permanent magnetic impact on electromagnetic repulsion force mechanism kinematic is produced, at permanent magnetism for reducing permanent magnet
Body arranges air gap with keeping dynamic iron core contact surface, when keep dynamic iron core leave point/closing position time, permanent magnetism
Power reduces rapidly, reduces its impact on rapid switching movement characteristic.
In the case of ensureing mechanical strength, because of eddy current kelvin effect, by along repulsion dish 6 axially side
Alleviate motion parts quality to punching, but do not affect the repulsion that eddy current effect produces, improve further
Opening velocity.This utility model is by using fault current zero point detection technique, controlling organization action
Time, effectively shorten the arc time, alleviate contact ablation, improve breaking capacity of breaker.
Above content be combine that this utility model made by concrete preferred implementation the most in detail
Describe in detail bright, it is impossible to assert that detailed description of the invention of the present utility model is only limitted to this, for this utility model
For person of an ordinary skill in the technical field, without departing from the concept of the premise utility,
Some simple deduction or replace can also be made, all should be considered as belonging to this utility model by being submitted to
Claims determine scope of patent protection.
Claims (3)
1. a high-speed switch based on permanent magnet holding mechanism, including the top guide bar (1) being sequentially connected with,
The dynamic iron core (9) of vacuum interrupter (2), middle guide rod, insulator (3), lower guide rod (4) and holding,
It is characterized in that: on described lower guide rod (4), be set with repulsion dish (6), at this repulsion dish (6)
It is arranged above switching winding (5) and closing coil (7) is thereunder installed；In described holding
It is arranged above upper holding static iron core, peace in the middle of holding static iron core on this with dynamic iron core (9)
Keep permanent magnet (11) equipped with closing a floodgate, and in this holding dynamic iron core (9) lower section, lower holding is installed
With static iron core, separating brake is installed in the middle of this lower holding static iron core and keeps permanent magnet (14).
A kind of high-speed switch based on permanent magnet holding mechanism, its feature
It is: wherein close a floodgate and keep permanent magnet (11) lower end shorter than upper holding static iron core lower end, thus
Upper holding static iron core lower end forms groove as upper air gap (12)；Wherein separating brake keeps permanent magnet (14)
Upper end is shorter than lower holding static iron core upper end, thus forms groove conduct in lower holding static iron core upper end
Lower air gap (13).
A kind of high-speed switch based on permanent magnet holding mechanism, its feature
It is: wherein on repulsion dish (6), have some through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620362749.5U CN205723330U (en) | 2016-04-26 | 2016-04-26 | A kind of high-speed switch based on permanent magnet holding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620362749.5U CN205723330U (en) | 2016-04-26 | 2016-04-26 | A kind of high-speed switch based on permanent magnet holding mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN205723330U true CN205723330U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620362749.5U Active CN205723330U (en) | 2016-04-26 | 2016-04-26 | A kind of high-speed switch based on permanent magnet holding mechanism |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762010A (en) * | 2016-04-26 | 2016-07-13 | 国家电网公司 | High-speed switch based on permanent magnet holding mechanism |
| CN106601539A (en) * | 2017-01-19 | 2017-04-26 | 广东电网有限责任公司电力科学研究院 | Repulsion motor operating method used for high-voltage circuit breaker and apparatus thereof |
| CN106783258A (en) * | 2017-01-23 | 2017-05-31 | 天津平高智能电气有限公司 | Switching device and the high-speed switch using the device |
| CN107146735A (en) * | 2017-07-11 | 2017-09-08 | 哈尔滨理工大学 | High-pressure vacuum breaker permanent-magnet manipulating mechanism based on electromagnetic repulsion force principle |
| CN107293440A (en) * | 2017-08-14 | 2017-10-24 | 国家电网公司 | The 363kV breakers switched based on rapid repulsion |
| CN107591278A (en) * | 2017-09-21 | 2018-01-16 | 西安交通大学 | A kind of semiaxis buckle-type monostable operating mechanism and its actuating method |
| CN107833783A (en) * | 2017-09-21 | 2018-03-23 | 西安交通大学 | The powder operation device and its actuating method of a kind of dc circuit breaker |
| CN111415830A (en) * | 2020-02-25 | 2020-07-14 | 平高集团有限公司 | Electromagnetic repulsion force operating mechanism and switch using same |
-
2016
- 2016-04-26 CN CN201620362749.5U patent/CN205723330U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762010A (en) * | 2016-04-26 | 2016-07-13 | 国家电网公司 | High-speed switch based on permanent magnet holding mechanism |
| CN106601539A (en) * | 2017-01-19 | 2017-04-26 | 广东电网有限责任公司电力科学研究院 | Repulsion motor operating method used for high-voltage circuit breaker and apparatus thereof |
| CN106783258A (en) * | 2017-01-23 | 2017-05-31 | 天津平高智能电气有限公司 | Switching device and the high-speed switch using the device |
| CN107146735A (en) * | 2017-07-11 | 2017-09-08 | 哈尔滨理工大学 | High-pressure vacuum breaker permanent-magnet manipulating mechanism based on electromagnetic repulsion force principle |
| CN107293440A (en) * | 2017-08-14 | 2017-10-24 | 国家电网公司 | The 363kV breakers switched based on rapid repulsion |
| CN107591278A (en) * | 2017-09-21 | 2018-01-16 | 西安交通大学 | A kind of semiaxis buckle-type monostable operating mechanism and its actuating method |
| CN107833783A (en) * | 2017-09-21 | 2018-03-23 | 西安交通大学 | The powder operation device and its actuating method of a kind of dc circuit breaker |
| CN107591278B (en) * | 2017-09-21 | 2019-05-24 | 西安交通大学 | A kind of semiaxis buckle-type monostable operating mechanism and its actuating method |
| CN111415830A (en) * | 2020-02-25 | 2020-07-14 | 平高集团有限公司 | Electromagnetic repulsion force operating mechanism and switch using same |
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