CN110534375A - Sulfur hexafluoride breaker and its electromagnetic type operating mechanism - Google Patents
Sulfur hexafluoride breaker and its electromagnetic type operating mechanism Download PDFInfo
- Publication number
- CN110534375A CN110534375A CN201910850625.XA CN201910850625A CN110534375A CN 110534375 A CN110534375 A CN 110534375A CN 201910850625 A CN201910850625 A CN 201910850625A CN 110534375 A CN110534375 A CN 110534375A
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- magnetic force
- locking
- fixedly connected
- locking device
- operating mechanism
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention relates to a kind of sulfur hexafluoride breaker and its electromagnetic type operating mechanisms, the permanent magnet of connection is slid including vertically arranged permanent magnetism column and thereon, magnetic force abatement locking device is connected on permanent magnetism column, the inside of magnetic force abatement locking device offers sliding groove, the inner wall of sliding groove is fixedly connected with compressed spring, one end of compressed spring is fixedly connected with check lock lever, and the outer surface of check lock lever offers limiting slot, and the inside of magnetic force abatement locking device offers locking slot.The sulfur hexafluoride breaker and its electromagnetic type operating mechanism, during permanent magnet slow demagnetization, magnetic induction density B becomes smaller, the magnetorheological fluid liquefaction inside magnetorheological fluid locking body, to unlock to check lock lever, due to the effect of compressed spring, check lock lever is ejected, so that locked catch bar, makes switching-on mechanism that can not work, and then avoid the electric arc due to caused by motive force is insufficient and endanger, to improve the security protection ability of equipment.
Description
Technical field
The invention belongs to control mechanism of vacuum circuit breaker field more particularly to a kind of sulfur hexafluoride breaker and its electromagnetic types
Operating mechanism.
Background technique
Breaker is switchgear important in electric system, is responsible for the dual role of control and protection.Height is broken
For the device of road, it is desirable that operating mechanism can obtain higher divide-shut brake speed and fast implement automatic reclosing operation.Actuating
Mechanism occupies an important position in breaker.It will not only guarantee the long-term Reliability of Microprocessor of breaker, and meet arc extinguishing
Requirement of the characteristic to operating mechanism.Operating mechanism will realize good high-voltage circuit breaker, feed motion, and power output will be with open circuit
The spring load characteristic of device can have good matching, keep the stabilization of electric system.Require breaker that there is good operability thus
Can, to meet above-mentioned requirements.Mainly there are hydraulic actuating mechanism, spring operating mechanism or pneumatics for existing operating mechanism
Deng being mostly made of a whole set of mechanical device, components are more, complicated mechanism, and manufacturing process requires high, and motion process is not
Controllably.The permanent magnet linear thrust operating mechanism of vacuum circuit breaker is used for disclosed in Chinese patent CN101447367B, it can
At the time of being accurately controlled breaker and cut-off and close, and breaker can be controlled by predetermined stroke curvilinear motion, improved
The precision and reliability of whole device have the characteristics that high response and high-precision and motion process are controllable.Breaker is cut-off
With the control for the process that closes, can not only improve breaker cut-offs and closes performance, moreover it is possible to reduce machine when breaking-closing operating
Tool vibration, improves mechanical life and the operational reliability of breaker.
But the above-mentioned permanent magnet linear thrust operating mechanism for vacuum circuit breaker, the premise that equipment operates normally is pair
Must have magnetism forever than permanent magnet in file, and magnetic force is not cut down, it is well known that permanent magnet during use can be by
Magnetic force is caused to decline in extraneous various factors, and during magnetic force decline, pass through power F=BIL caused by electromagnetic induction
In, magnetic induction density B reduces, and the power generated in the case where electric current is constant can be gradually reduced, and becomes up to permanent magnet loss of excitation
0, thrust also becomes 0, but the push rod of operating mechanism is that certain power is needed just to can be carried out closing operation during promotion
, if power is too small, certainly will cause to close a floodgate not in place, and if high-voltage circuitbreaker combined floodgate is not in place, biggish electricity will be generated
Arc, this electric arc is to the very harmful of equipment, easily generation safety accident.
Summary of the invention
The purpose of the present invention is to provide a kind of electromagnetic type operating mechanisms, laminate including three parallel permanent magnetism columns and two
Iron core on permanent magnetism column, and the side of the permanent magnetism column on both sides and the left and right sides of intermediate permanent magnetism column pass through locking transverse post and consolidate
Surely it is connected with permanent magnet, the electromagnetic type operating mechanism is formed by the magnetic force abatement locking device inside permanent magnetism column is arranged in, magnetic
The inside of power abatement locking device offers sliding groove, and the inner wall of sliding groove is fixedly connected with compressed spring, and the one of compressed spring
End is fixedly connected with check lock lever, and the outer surface of check lock lever offers limiting slot, and the inside of magnetic force abatement locking device offers lock
Tight slot, locking slot are internally provided with locking drive mechanism, and locking drive mechanism is internally provided with strained layer, under strained layer
Surface is fixedly connected with the magnetorheological fluid locking body changed with change of magnetic field strength, and magnetorheological fluid locking body, which coincide, is connected in limit
The inside and the contact site of magnetorheological fluid locking body and check lock lever of position slot are provided with ball.
Preferably, the upper surface of the strained layer is fixedly connected with strain adjustable spring, and strain adjustable spring is fixedly connected
In the inner roof wall of locking slot.
Preferably, the left and right sides of magnetic force abatement locking device upper surface offers inserting groove, inserting groove it is interior
Portion is plugged with adjusting rod, and the outer surface of adjusting rod is socketed with external adjustable spring, and one end of adjusting rod is fixedly connected on locking slot
Inner roof wall.
Preferably, the permanent magnet offers identical with locking slot diameter with magnetic force abatement locking device corresponding position
Ejection hole.
Preferably, the outer surface of the intermediate permanent magnetism column is socketed with pushing plate, and the side of pushing plate is fixedly connected with promotion
Bar is fixedly connected to secondary iron core at left and right sides of pushing plate, is wound with armature winding on secondary iron core.
Preferably, the quantity of the magnetic force abatement locking device is three, and two magnetic force abatement locking device on both sides is complete
Exactly the same, the inside of the sliding groove of intermediate magnetic force abatement locking device is fixedly connected with stressed plate, the left and right sides of stressed plate
It is fixedly connected to compressed spring.
The technical solution of sulfur hexafluoride breaker of the present invention are as follows: sulfur hexafluoride breaker, including switch block, switch block
It is sequentially connected with electromagnetic type operating mechanism.
Beneficial effects of the present invention are as follows:
The sulfur hexafluoride breaker and its electromagnetic type operating mechanism cut down locking dress by the way that magnetic force is arranged in permanent magnetism column
It sets, and magnetorheological fluid locking body is set inside it, so that intelligent switching behaviour may be implemented in the case where guaranteeing safety
Make, on the basis of documents, the present invention can achieve effect identical with documents in the case where permanent magnet non-demagnetization
Fruit, during permanent magnet slow demagnetization, when reaching a critical point, magnetic induction density B becomes smaller, magnetorheological fluid locking body
Internal magnetorheological fluid liquefaction, to unlock to check lock lever, due to the effect of compressed spring, check lock lever is ejected, thus
Locked catch bar, makes switching-on mechanism that can not work, and then avoids the electric arc due to caused by motive force is insufficient and endanger, thus pole
The big security protection ability for improving the sulfur hexafluoride breaker and its electromagnetic type operating mechanism.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, the accompanying drawings in the following description is only the embodiment of the present invention, common for this field
For technical staff, without any creative labor, it can also be obtained according to these attached drawings other attached drawings；
Fig. 1 is electromagnetic type operating mechanism structural schematic diagram of the present invention；
Fig. 2 is two sides magnetic force abatement locking device structure schematic diagram of the present invention；
Fig. 3 is magnetic force abatement locking device structure schematic diagram among the present invention；
Fig. 4 is enlarged structure schematic diagram at A in electromagnetic type operating mechanism Fig. 2 of the present invention；
Fig. 5 is enlarged structure schematic diagram at B in electromagnetic type operating mechanism Fig. 3 of the present invention.
In figure: 1, electromagnetic type operating mechanism；2, permanent magnet；3, magnetic force cuts down locking device；4, compressed spring；5, it locks
Bar；6, locking drive mechanism；7, strained layer；8, magnetorheological fluid locking body；9, limiting slot；10, adjustable spring is strained；11, it adjusts
Bar；12, external adjustable spring；13, hole is launched；14, catch bar；15, armature winding；16, stressed plate；17, ball.
Specific embodiment
In order to keep technical purpose of the invention, technical scheme and beneficial effects clearer, with reference to the accompanying drawing and specifically
Embodiment is further illustrated technical solution of the present invention.
Please refer to Fig. 1-5, the present invention provides a kind of electromagnetic type operating mechanism and includes vertically arranged permanent magnetism column and slide thereon
The permanent magnet 2 of connection is moved, permanent magnet 2 offers identical with locking slot diameter with magnetic force abatement locking device corresponding position
Hole 13 is launched, magnetic force abatement locking device 3 is connected on permanent magnetism column, the outer surface of intermediate permanent magnetism column is socketed with pushing plate, pushes
The side of plate is fixedly connected with catch bar 14, is fixedly connected to secondary iron core at left and right sides of pushing plate, on secondary iron core around
There is armature winding 15, the quantity that magnetic force cuts down locking device 3 is three, and two magnetic force on both sides cut down the complete phase of locking device 3
Together, the inside of the sliding groove of intermediate magnetic force abatement locking device 3 is fixedly connected with stressed plate 16, the left and right sides of stressed plate 16
It is fixedly connected to compressed spring 4, the left and right sides of magnetic force abatement 3 upper surface of locking device offers inserting groove, inserting groove
Inside be plugged with adjusting rod 11, the outer surface of adjusting rod 11 is socketed with external adjustable spring 12, and one end of adjusting rod 11 is fixed
It is connected to the inner roof wall of locking slot, the inside of magnetic force abatement locking device 3 offers sliding groove, and the inner wall of sliding groove is fixedly connected
There is compressed spring 4, one end of compressed spring 4 is fixedly connected with check lock lever 5, and the outer surface of check lock lever 5 offers limiting slot 9, magnetic
The inside of power abatement locking device 3 offers locking slot, and locking slot is internally provided with locking drive mechanism 6, locks driving machine
Structure 6 is internally provided with strained layer 7, and the upper surface of strained layer 7 is fixedly connected with strain adjustable spring 10, strains adjustable spring 10
It is fixedly connected on the inner roof wall of locking slot, the main part of strain adjustable spring 10 is pyramidal structure, can play increase contact surface
Long-pending effect, the lower surface of strained layer 7 are fixedly connected with magnetorheological fluid locking body 8, and magnetorheological fluid locking body 8 is internally provided with
Magnetorheological fluid, magnetorheological fluid category controlled fluid are that more active one is studied in intellectual material, and magnetorheological fluid is by high magnetic conductance
The suspended substance that rate, low hysteresis small soft magnetic particles and non-magnetic liquid mix, this suspended substance is in zero magnetic field
Under the conditions of show the Newtonian fluid characteristic of low viscosity；And under strong magnetic field action, then high viscosity, low-flow are showed
Bingham bulk properties, the identical inside for being connected in limiting slot 9 of magnetorheological fluid locking body 8 and magnetorheological fluid locking body 8 and check lock lever
5 contact site is provided with ball 17, ball 17 can become sliding friction as rolling friction, thus the magnetorheological fluid lock reduced
Frictional force between tight body 8 and check lock lever 5, facilitates the pop-up of check lock lever 5.
During use, when 2 demagnetization of permanent magnet is to when critical point, when magnetic induction density B is also reduced to critical point, magnetic
Power cuts down the magnetorheological fluid liquefaction inside locking device 3, and check lock lever 5 is ejected, and prevents closing operation, makees to play protection
With electric arc caused by closing operation can still be carried out in the case where low thrust by having prevented magnetic force reduction in documents 1
It is dangerous.
The sulfur hexafluoride breaker and its electromagnetic type operating mechanism cut down locking device by the way that magnetic force is arranged in permanent magnetism column
3, and magnetorheological fluid locking body 8 is set inside it, so that intelligent switching behaviour may be implemented in the case where guaranteeing safety
Make, on the basis of documents, the present invention can achieve identical with documents in the case where 2 non-demagnetization of permanent magnet
Effect, during 2 slow demagnetization of permanent magnet, when reaching a critical point, magnetic induction density B becomes smaller, magnetorheological fluid lock
Magnetorheological fluid liquefaction inside tight body 8, to unlock to check lock lever 5, due to the effect of compressed spring 4, check lock lever 5 is by bullet
Out, it so that locked catch bar 14, makes switching-on mechanism that can not work, and then avoids the electric arc due to caused by motive force is insufficient and endangers
Evil, to greatly improve the security protection ability of the sulfur hexafluoride breaker and its electromagnetic type operating mechanism.
It should be noted last that: technical solution of the present invention that the above embodiments are only illustrative and not limiting is any right
The equivalent replacement and do not depart from the modification of spirit and scope of the invention or locally replace that the present invention carries out, should all cover in this hair
Within bright protective scope of the claims.
Claims (7)
1. electromagnetic type operating mechanism, the permanent magnet of connection is slid including vertically arranged permanent magnetism column and thereon, which is characterized in that forever
Magnetic force abatement locking device is connected in magnetic pole, the inside of magnetic force abatement locking device offers sliding groove, the inner wall of sliding groove
It is fixedly connected with compressed spring, one end of compressed spring is fixedly connected with check lock lever, and the outer surface of check lock lever offers limiting slot,
The inside of magnetic force abatement locking device offers locking slot, and locking slot is internally provided with locking drive mechanism, locks driving machine
Structure is internally provided with strained layer, and the lower surface of strained layer is fixedly connected with the magnetorheological fluid lock changed with change of magnetic field strength
Tight body, magnetorheological fluid locking body coincide be connected in limiting slot inside and the contact site of magnetorheological fluid locking body and check lock lever set
It is equipped with ball.
2. electromagnetic type operating mechanism according to claim 1, it is characterised in that；The upper surface of the strained layer is fixedly connected
There is strain adjustable spring, strain adjustable spring is fixedly connected on the inner roof wall of locking slot.
3. electromagnetic type operating mechanism according to claim 2, it is characterised in that: the magnetic force cuts down locking device upper surface
The left and right sides offer inserting groove, the inside of inserting groove is plugged with adjusting rod, and the outer surface of adjusting rod is socketed with outside and stretches
One end of contracting spring, adjusting rod is fixedly connected on the inner roof wall of locking slot.
4. electromagnetic type operating mechanism according to claim 3, it is characterised in that: the permanent magnet and magnetic force abatement locking dress
Corresponding position is set to offer and the identical ejection hole of locking slot diameter.
5. electromagnetic type operating mechanism as claimed in any of claims 1 to 4, it is characterised in that: the intermediate permanent magnetism
The outer surface of column is socketed with pushing plate, and the side of pushing plate is fixedly connected with catch bar, and the left and right sides of pushing plate is fixed to be connected
It is connected to secondary iron core, is wound with armature winding on secondary iron core.
6. electromagnetic type operating mechanism according to claim 5, it is characterised in that: the quantity of the magnetic force abatement locking device
It is three, two magnetic force abatement locking device on both sides is identical, and intermediate magnetic force cuts down the interior of the sliding groove of locking device
Portion is fixedly connected with stressed plate, is fixedly connected to compressed spring at left and right sides of stressed plate.
7. sulfur hexafluoride breaker, including switch block, which is characterized in that switch block is sequentially connected just like claim 1-6
Any one of described in electromagnetic type operating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910850625.XA CN110534375B (en) | 2019-09-10 | 2019-09-10 | Sulfur hexafluoride circuit breaker and electromagnetic operating mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910850625.XA CN110534375B (en) | 2019-09-10 | 2019-09-10 | Sulfur hexafluoride circuit breaker and electromagnetic operating mechanism thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110534375A true CN110534375A (en) | 2019-12-03 |
| CN110534375B CN110534375B (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910850625.XA Active CN110534375B (en) | 2019-09-10 | 2019-09-10 | Sulfur hexafluoride circuit breaker and electromagnetic operating mechanism thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869365A (en) * | 2021-02-26 | 2021-06-01 | 慕朝芬 | Anti-myopia reading bookshelf based on magnetorheological materials |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1767116A (en) * | 2004-10-30 | 2006-05-03 | 周济 | Electric switch operation control mode and operation control structure |
| JP2015028979A (en) * | 2013-07-30 | 2015-02-12 | 三菱電機株式会社 | Electromagnet device |
| CN205943923U (en) * | 2016-07-27 | 2017-02-08 | 吉林德工电控设备有限公司 | Permanent magnetism device for circuit breaker |
-
2019
- 2019-09-10 CN CN201910850625.XA patent/CN110534375B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1767116A (en) * | 2004-10-30 | 2006-05-03 | 周济 | Electric switch operation control mode and operation control structure |
| JP2015028979A (en) * | 2013-07-30 | 2015-02-12 | 三菱電機株式会社 | Electromagnet device |
| CN205943923U (en) * | 2016-07-27 | 2017-02-08 | 吉林德工电控设备有限公司 | Permanent magnetism device for circuit breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869365A (en) * | 2021-02-26 | 2021-06-01 | 慕朝芬 | Anti-myopia reading bookshelf based on magnetorheological materials |
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| CN110534375B (en) | 2021-04-02 |
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