CN104347310B - Permanent magnet spring mechanism switch of divided conductor power transmission line ice melting device - Google Patents
Permanent magnet spring mechanism switch of divided conductor power transmission line ice melting device Download PDFInfo
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- CN104347310B CN104347310B CN201410419103.1A CN201410419103A CN104347310B CN 104347310 B CN104347310 B CN 104347310B CN 201410419103 A CN201410419103 A CN 201410419103A CN 104347310 B CN104347310 B CN 104347310B
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- iron core
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- 230000007246 mechanism Effects 0.000 title claims abstract description 60
- 230000005540 biological transmission Effects 0.000 title claims abstract description 18
- 239000004020 conductor Substances 0.000 title claims abstract description 17
- 238000002844 melting Methods 0.000 title claims abstract description 15
- 230000008018 melting Effects 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 230000008033 biological extinction Effects 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 21
- 230000008520 organization Effects 0.000 claims description 16
- 230000014759 maintenance of location Effects 0.000 claims description 12
- 230000001939 inductive effect Effects 0.000 claims description 11
- 230000004308 accommodation Effects 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002153 concerted effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
Classifications
-
- 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
Abstract
The invention provides a permanent magnet spring mechanism switch of a divided conductor power transmission line ice melting device. The permanent magnet spring mechanism switch at least comprises a vacuum arc extinction chamber and a switch arranged in the vacuum arc extinction chamber, and further comprises a permanent magnet spring operation mechanism for driving the switch to be switched on and off; a switching-on switch comprises a switching-on static contact and a switching-on movable contact; a permanent magnet driving mechanism comprises a switching-off coil, a switching-on coil, a movable iron core, an outer magnet yoke with a barrel-shaped structure, and a connecting rod for connecting the switching-on movable contact with the movable iron core; the switching-off coil and the switching-on coil are arranged at the bottom and the opening in the switching-off coil respectively; the movable iron core is inserted into the switching-off coil and the switching-on coil and can do reciprocating single-degree-of-freedom movement in the switching-off coil and the switching-on coil, so that the false switching-off rate of the permanent magnet mechanism switch can be remarkably reduced, the switching-on reliability of the permanent magnet mechanism switch can be effectively improved, and thus the working performance of the whole permanent magnet mechanism switch is guaranteed.
Description
Technical field
The present invention relates to a kind of permanent magnetic mechanism switch, particularly relate to a kind of split conductor ice-melting device for transmission line
Permanent magnetic spring organization switch.
Background technology
Along with the appearance of superpower permanet magnetic body Nd-Fe-B rare earth permanent magnetic material, there is the permanent magnet mechanism of commercial value
Arise at the historic moment.Compared with spring mechanism and electromagnetic mechanism, permanent-magnet manipulating mechanism moving component only one of which, nothing
Needing mechanical de-, locker, simple in construction, reliability is high, along with the progress of technology, its non-maintaining spy
Point is more and more significant.
Vacuum interrupter can be used to join forever for the switch sections in transmission line of electricity current cycle intelligence deicing device
Magnetic operating mechanism, but the split conductor transmission line of electricity current cycle intelligence deicing device being series in circuit is with general
The switch of logical application is different, and its switch sections needs higher combined floodgate reliability, and not should separating brake without reason,
Also manual emergency separating brake it is not necessary to；Additionally switch sections only cut-offs load current, need not cut-off short circuit current.
Permanent magnetic mechanism switch is divided into Monostable permanent magnetic mechanism switch and bistable-state permanent magnet mechanism to switch.Short for cut-offfing
Road electric current, existing Monostable permanent magnetic mechanism switch energy-stored spring when closing a floodgate is in compressive state, from design
On i.e. there is certain mistake separating brake probability, and reliability of closing a floodgate is the most not high enough.To bistable-state permanent magnet mechanism,
A kind of asymmetric double coil type permanent-magnetic mechanism as disclosed in the Chinese invention patent of publication number CN1542883A,
Have employed the asymmetric design of coil and magnetic circuit, the asymmetric of magnetic circuit does not affects 5% to static retention forces,
And the asymmetric of magnetic circuit is merely capable of improving opening characteristic, the combined floodgate reliability of permanent magnet mechanism can not be improved,
This is also the deficiency that all common bistable-state permanent magnet mechanisms are common, additionally, in order to ensure that arc-chutes can
The disjunction short circuit current leaned on, existing all kinds of permanent magnet mechanisms require the highest on volume and material, and structure is complicated,
Inevitably result in the increase of cost and technology difficulty.
It is, therefore, desirable to provide a kind of new permanent magnetic mechanism switch, can not only effectively reduce permanent magnetic mechanism switch
Separating brake rate by mistake, additionally it is possible to significantly improve the combined floodgate reliability of permanent magnetic mechanism switch, thus ensure whole permanent magnetic motor
The service behaviour of structure switch, simple in construction, easily manufactured.
Summary of the invention
In view of this, it is an object of the invention to provide the permanent magnetism bullet of a kind of split conductor ice-melting device for transmission line
Spring organization switch, can not only effectively reduce the mistake separating brake rate of permanent magnetic mechanism switch, additionally it is possible to significantly improve permanent magnetism
The combined floodgate reliability of organization switch, thus ensure the service behaviour of whole permanent magnetic spring organization switch, structure letter
Single, easily manufactured.
The permanent magnetic spring organization switch of a kind of split conductor ice-melting device for transmission line that the present invention provides, at least
Including vacuum interrupter and be arranged at the closing switch that vacuum extinction is indoor, also include for driving combined floodgate to open
Closing and realize the permanent mechanism driving mechanism with separating brake that closes a floodgate, described closing switch includes combined floodgate stationary contact and closes a floodgate dynamic
Contact；
Described permanent mechanism driving mechanism includes switching winding, closing coil, dynamic iron core, the outer yoke of tubular structure
And for connecting the connecting rod of combined floodgate movable contact and dynamic iron core, described switching winding is respectively provided with closing coil
Bottom in outer yoke and opening part, in described dynamic iron core inserts switching winding and closing coil and dynamic iron core
Can in switching winding and closing coil reciprocal single dof mobility, between described switching winding and closing coil
It is additionally provided with the permanent magnet of tubular structure and the magnetic inductive block of tubular structure, in described magnetic inductive block, is placed on permanent magnet
And the internal diameter of magnetic inductive block is additionally provided with for offer deciliter more than the external diameter of dynamic iron core, the lower section of described dynamic iron core
The spring mechanism of lock auxiliary force, described spring mechanism is positioned at the bottom outside of described outer yoke and consolidates with dynamic iron core
Fixed connection.
Further, described spring mechanism includes switching-in spring, combined floodgate buffer spring, drive rod and for holding
Receive switching-in spring and the accommodation tube of combined floodgate buffer spring, bottom described accommodation tube, be coaxially arranged with spring retention posts,
One end of described switching-in spring is coated at described spring retention posts, and one end of described drive rod is coaxial with dynamic iron core
Fixing connection, the other end passes bottom outer yoke and is deep in accommodation tube, and described drive rod passes through a T-shaped
Spring pressure head is connected with switching-in spring, and T-shaped spring pressure head is embedded in switching-in spring, described combined floodgate buffer spring
It is coated at described drive rod and between outer yoke and T-shaped spring pressure head.
Further, the cross-sectional area of the wire of described closing coil is less than the conductive wire cross-section of described switching winding
Long-pending.
Further, also include that fixation kit, described fixation kit include the first clamp and the second clamp, described
First clamp is arranged at above the second clamp and fixes with the second clamp and is connected, and described vacuum interrupter is arranged at
Fixing between first clamp and the second clamp and with the lower surface of the first clamp and be connected, described combined floodgate stationary contact leads to
Crossing a positioning rod and the fixing connection of the first clamp, the opening of described outer yoke and the lower surface of the second clamp are solid
Fixed connection forms airtight cavity.
Further, the lower surface of described second clamp is provided with groove, and the opening of described outer yoke is fixed embedding
Enter in described groove.
Further, described connecting rod includes first connecting rod and second connecting rod, one end of described first connecting rod and combined floodgate
Movable contact is fixing to be connected, and the other end is fixedly and coaxially connected with second connecting rod.
Further, described second connecting rod is wholely set with dynamic iron core, drive rod.
Further, described first clamp and the second clamp connect by least two screw rod is fixing.
Beneficial effects of the present invention: the permanent magnetic spring of the split conductor ice-melting device for transmission line that the present invention provides
Organization switch, is arranged with switching winding split by closing coil, it is possible to effectively reduce permanent magnetic mechanism switch
By mistake separating brake rate, but also the combined floodgate reliability of permanent magnetic mechanism switch can be significantly improved, thus ensure whole forever
The service behaviour of magnetic mechanism switch；By the effect of the switching-in spring of spring mechanism Yu combined floodgate buffer spring,
Separating brake all can provide assistant spring power with when closing a floodgate, ensure while higher combined floodgate reliability also to deciliter
Lock characteristic is improved；Present configuration is simple, easily manufactured.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is present invention structural representation when closing a floodgate.
Fig. 2 is structural representation during separating brake of the present invention.
Fig. 3 is the second clamp structure schematic diagram of the present invention.
Detailed description of the invention
Fig. 1 is present invention structural representation when closing a floodgate, and Fig. 2 is structural representation during separating brake of the present invention,
Fig. 3 is the second clamp structure schematic diagram of the present invention, as it can be seen, a kind of split conductor that the present invention provides
The permanent magnetic spring organization switch of ice-melting device for transmission line, at least includes vacuum interrupter 9 and is arranged at true
Closing switch in empty arc-chutes 9, also includes driving for the permanent magnetism driving closing switch realization to close a floodgate with separating brake
Motivation structure, described closing switch includes combined floodgate stationary contact 10 and combined floodgate movable contact 11；
Described permanent mechanism driving mechanism includes closing coil 15, switching winding 19, dynamic iron core 4, tubular structure
Outer yoke 16 and for connecting the connecting rod of combined floodgate movable contact 11 and dynamic iron core 4, described switching winding 19
Being respectively arranged at the bottom in outer yoke 16 and opening part with closing coil 15, described dynamic iron core 4 inserts and closes
In brake cable circle 15 and switching winding 19 and dynamic iron core 4 can be reciprocal in closing coil 15 with switching winding 19
Single dof mobility, is additionally provided with the permanent magnetism of tubular structure between described closing coil 15 and switching winding 19
The magnetic inductive block 17 of body 18 and tubular structure, uses this structure so that the Distribution of Magnetic Field around dynamic iron core
Uniformly, it is simple to move the action of iron core and improve the reliability of separating brake and combined floodgate, and magnetic inductive block is by permanent magnet
With drive rod and second connecting rod and the isolation of dynamic iron core, permanent magnet is played a good protection, certainly,
Permanent magnet and magnetic inductive block may be contained within outer yoke, are placed on permanent magnet 18 and magnetic inductive block in described magnetic inductive block 17
The internal diameter of 17, more than the external diameter of dynamic iron core 4, is beneficial to dynamic iron core up and down motion and realizes separating brake and feed motion, institute
The lower section stating iron core 4 is additionally provided with the spring mechanism for providing divide-shut brake auxiliary force, described spring mechanism
It is positioned at the bottom outside of described outer yoke 16 and fixing with dynamic iron core 4 is connected, by said structure, can not only
Enough mistake separating brake rates effectively reducing permanent magnetic mechanism switch, additionally it is possible to the combined floodgate significantly improving permanent magnetic mechanism switch can
By property, thus ensure the service behaviour of whole permanent magnetic mechanism switch.
In the present embodiment, described spring mechanism includes switching-in spring 21, combined floodgate buffer spring 6, drive rod 5
And for accommodating the accommodation tube 22 of switching-in spring 21 and combined floodgate buffer spring 6, bottom described accommodation tube 22
Being coaxially arranged with spring retention posts 7, one end of described switching-in spring 21 is coated at described spring retention posts 7,
One end of described drive rod 5 is fixedly and coaxially connected with dynamic iron core 4, and the other end passes bottom outer yoke 16 the deepest
Entering in accommodation tube 22, described drive rod 5 is connected with switching-in spring 21 by a T-shaped spring pressure head 20,
T-shaped spring pressure head 20 is embedded in switching-in spring 21, and described combined floodgate buffer spring 6 is coated at described drive rod 5
And between outer yoke 16 and T-shaped spring pressure head 20, described T-shaped pressure head together with outer yoke to combined floodgate
Buffer spring carries out spacing, bottom T-shaped pressure head and accommodation tube and spring retention posts acts on jointly to combined floodgate bullet
Spring carries out spacing, by the effect of spring mechanism, all can provide assistant spring power at separating brake with when closing a floodgate,
While improving divide-shut brake characteristic, in turn ensure that the combined floodgate reliability that switch is higher, and effectively prevent mistake point
The appearance of lock, well meets the job requirement of ice-melt switch.
In the present embodiment, the cross-sectional area of the wire of described closing coil 15 is less than described switching winding 19
Wire sectional area, in the case of reducing materials and organization volume as far as possible, it is ensured that reliable separating brake, and real
Existing switching-in spring 21 energy storage, reduces the power required for making process, the most again the divide-shut brake characteristic to switch
Improved.
In the present embodiment, also include that fixation kit, described fixation kit include the first clamp 1 and the second clamp
3, described first clamp 1 is arranged at above the second clamp 3 and fixes with the second clamp 3 and is connected, described vacuum
Arc-chutes 9 are arranged between the first clamp 1 and the second clamp 3 and the fixing company with the lower surface of the first clamp 1
Connecing, described combined floodgate stationary contact 10 is connected by a positioning rod 8 is fixing with the first clamp 1, described outer yoke
The opening of 16 and the lower surface of the second clamp 3 are fixedly connected to form airtight cavity, by this structure, energy
Switching-on mechanism and spring mechanism is enough enable to fix closely so that the small volume of the present invention, so that
The present invention can be highly suitable for the deicing device of split conductor, and the fixing connection in the present embodiment all uses
Bolted mode, convenient disassembly, it is beneficial to maintenance, it is of course also possible to use other fixing connection side
Formula, such as welds, clamping etc..
In the present embodiment, the lower surface of described second clamp 3 is provided with groove 23, described outer yoke 16
Opening is fixedly embedded in described groove 23, it is possible to outer yoke is combined tightly with the lower surface of the second clamp
Close, structural strength is higher.
In the present embodiment, described connecting rod includes first connecting rod 12 and second connecting rod 14, described first connecting rod 12
One end be fixedly and coaxially connected with combined floodgate movable contact 11, the other end and second connecting rod 14 is fixing to be connected, this reality
Execute in example, use and with fixed cover 13, first connecting rod 12 and second connecting rod 14 are fixed and connected, easy accessibility,
By this structure, it is possible to meet the requirement of deicing device voltage isolation, and good transmission can be played and make
With.
In the present embodiment, described second connecting rod 14 is wholely set with dynamic iron core 4, drive rod 5, and second connects
Bar 14 and drive rod 5 use identical material, it is possible to make permanent magnet mechanism have bigger static retention forces,
Thus ensure the separating brake of the present invention and the reliability of combined floodgate, and be conducive to improving mechanical strength, described dynamic ferrum
Core fixed jacket is in second connecting rod and drive rod.
In the present embodiment, described first clamp 1 and the second clamp 3 connect by least two screw rod 2 is fixing,
Use this structure, it is possible to be beneficial to dismounting, it is simple to maintenance.
The operation principle of the present invention:
As it is shown in figure 1, Fig. 1 is the present invention is in "on" position, switching-in spring now is in release conditions,
But discharging the most completely, i.e. possess certain decrement, therefore, switching-in spring also has elastic force upwards,
Power between combined floodgate movable contact and combined floodgate stationary contact that now vacuum extinction is indoor includes the static guarantor of permanent magnet mechanism
Holding force, also switching-in spring elastic force effect upwards, by the common effect of two power, it is ensured that close a floodgate quiet
Closely close between contact and combined floodgate movable contact, thus ensure that combined floodgate reliability, and can effectively keep away
Exempting from separating brake by mistake, now, combined floodgate buffer spring is in compressive state, and the coefficient of elasticity of combined floodgate buffer spring is less than
The coefficient of elasticity of switching-in spring, therefore, the combination impact between place's movable contact and stationary contact is little, so that
The reliability that must close a floodgate is effectively ensured.
Separating brake process: when switching winding is energized, switching winding produces downward electromagnetic force makes iron core overcome forever
The static retention forces of magnetic mechanism and the elastic force of switching-in spring also move downward, thus drive combined floodgate movable contact to
Lower motion completes separating brake action, and during separating brake, switching-in spring is constantly compressed, and simultaneously works as closing a floodgate and delays
Punching effect, now, the direction of combined floodgate buffer spring release pretightning force (i.e. elastic force) and release pretightning force and electricity
The direction of magnetic force is identical, under the common effect of electromagnetic force and combined floodgate buffer spring, it is ensured that separating brake reliable
Property, gate-dividing state is as shown in Figure 2, although during separating brake, switching-in spring is compressed, but at combined floodgate buffer spring
And overcome switching-in spring elastic force upwards under the effect of static retention forces and that closing switch is in is stable
Gate-dividing state.
Making process: owing to, during separating brake, switching-in spring is compressed and is in complete compressive state, this
Time the elastic force upwards that provides maximum, when closing coil is energized, and closing coil produces electricity upwards to dynamic iron core
Magnetic force, and the static retention forces making a concerted effort to overcome permanent magnet mechanism of the elastic force of this electromagnetic force and switching-in spring and
Counteracting force when combined floodgate buffer spring is compressed, thus drive dynamic iron core to move upward and drive combined floodgate dynamic tactile
Point moves upward and is combined with the stationary contact that closes a floodgate, thus completes feed motion, and combined floodgate buffer spring is at making process
In play cushioning effect.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although
With reference to preferred embodiment, the present invention is described in detail, it will be understood by those within the art that,
Technical scheme can be modified or equivalent, without deviating from technical solution of the present invention
Objective and scope, it all should be contained in the middle of scope of the presently claimed invention.
Claims (7)
1. the permanent magnetic spring organization switch of a split conductor ice-melting device for transmission line, it is characterised in that: extremely
Include vacuum interrupter less and be arranged at the switch that vacuum extinction is indoor, also including for driving switch to realize
Close a floodgate the permanent mechanism driving mechanism with separating brake, and described switch includes combined floodgate stationary contact and combined floodgate movable contact；
Described permanent mechanism driving mechanism includes switching winding, closing coil, dynamic iron core, the outer yoke of tubular structure
And for connecting the connecting rod of combined floodgate movable contact and dynamic iron core, described switching winding is respectively provided with closing coil
Bottom in outer yoke and opening part, in described dynamic iron core inserts switching winding and closing coil and dynamic iron core
Can in switching winding and closing coil reciprocal single dof mobility, between described switching winding and closing coil
It is additionally provided with the permanent magnet of tubular structure and the magnetic inductive block of tubular structure, in described magnetic inductive block, is placed on permanent magnet
And the internal diameter of magnetic inductive block is additionally provided with for offer deciliter more than the external diameter of dynamic iron core, the lower section of described dynamic iron core
The spring mechanism of lock auxiliary force, described spring mechanism is positioned at the bottom outside of described outer yoke and consolidates with dynamic iron core
Fixed connection；
Described spring mechanism includes switching-in spring, combined floodgate buffer spring, drive rod and for accommodating combined floodgate bullet
Spring and the accommodation tube of combined floodgate buffer spring, be coaxially arranged with spring retention posts, described conjunction bottom described accommodation tube
One end of lock spring is coated at described spring retention posts, and one end of described drive rod and dynamic iron core are coaxially fixing to be connected
Connecing, the other end passes bottom outer yoke and is deep in accommodation tube, and described drive rod passes through a T-shaped spring pressure
Head is connected with switching-in spring, and T-shaped spring pressure head is embedded in switching-in spring, and described combined floodgate buffer spring is coated at
Described drive rod and between outer yoke and T-shaped spring pressure head.
The permanent magnetic spring organization switch of split conductor ice-melting device for transmission line the most according to claim 1,
It is characterized in that: the cross-sectional area of the wire of described closing coil is less than the conductive wire cross-section of described switching winding
Long-pending.
The permanent magnetic spring organization switch of split conductor ice-melting device for transmission line the most according to claim 2,
It is characterized in that: also include that fixation kit, described fixation kit include the first clamp and the second clamp, described
First clamp is arranged at above the second clamp and fixes with the second clamp and is connected, and described vacuum interrupter is arranged at
Fixing between first clamp and the second clamp and with the lower surface of the first clamp and be connected, described combined floodgate stationary contact leads to
Crossing a positioning rod and the fixing connection of the first clamp, the opening of described outer yoke and the lower surface of the second clamp are solid
Fixed connection forms airtight cavity.
The permanent magnetic spring organization switch of split conductor ice-melting device for transmission line the most according to claim 3,
It is characterized in that: the lower surface of described second clamp is provided with groove, the opening of described outer yoke is fixed embedding
Enter in described groove.
The permanent magnetic spring organization switch of split conductor ice-melting device for transmission line the most according to claim 4,
It is characterized in that: described connecting rod includes first connecting rod and second connecting rod, one end of described first connecting rod and combined floodgate
Movable contact is fixing to be connected, and the other end is fixedly and coaxially connected with second connecting rod.
The permanent magnetic spring organization switch of split conductor ice-melting device for transmission line the most according to claim 5,
It is characterized in that: described second connecting rod is wholely set with dynamic iron core, drive rod.
The permanent magnetic spring organization switch of split conductor ice-melting device for transmission line the most according to claim 6,
It is characterized in that: described first clamp and the second clamp connect by least two screw rod is fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419103.1A CN104347310B (en) | 2014-08-22 | 2014-08-22 | Permanent magnet spring mechanism switch of divided conductor power transmission line ice melting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419103.1A CN104347310B (en) | 2014-08-22 | 2014-08-22 | Permanent magnet spring mechanism switch of divided conductor power transmission line ice melting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104347310A CN104347310A (en) | 2015-02-11 |
| CN104347310B true CN104347310B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410419103.1A Active CN104347310B (en) | 2014-08-22 | 2014-08-22 | Permanent magnet spring mechanism switch of divided conductor power transmission line ice melting device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428146A (en) * | 2015-12-24 | 2016-03-23 | 上海固缘电力科技有限公司 | Solid insulation permanent magnet vacuum circuit breaker |
| CN107123568A (en) * | 2017-06-16 | 2017-09-01 | 沈阳工业大学 | A kind of integral vacuum breaker drives mechanism with Non-contact Magnetic |
| CN107785190A (en) * | 2017-11-22 | 2018-03-09 | 电光防爆科技股份有限公司 | A kind of electromagnetism on-off system and mining feed switch |
| CN110993390A (en) * | 2019-11-22 | 2020-04-10 | 许继（厦门）智能电力设备股份有限公司 | Switch structure with switching-on and switching-off assisting and buffering functions |
| 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 |
| CN113506661B (en) * | 2021-07-05 | 2023-03-21 | 重庆地格科技有限责任公司 | Insulating connecting piece of overhead line split conductor current circulation ice-melt system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2337668Y (en) * | 1998-03-11 | 1999-09-08 | 王光顺 | Permanent-magnetic operating mechanism for vacuum switch |
| CN1319095C (en) * | 2003-11-07 | 2007-05-30 | 西安交通大学 | Asymmetric double coil type permanent-magnetic mechanism |
| CN201229906Y (en) * | 2008-05-08 | 2009-04-29 | 中国电力科学研究院 | Permanent magnet mechanism for enhancing reaction capability of coil magnetic field to dynamic response of iron core |
| CN203760367U (en) * | 2013-11-08 | 2014-08-06 | 宁夏天地经纬电力设备工程有限公司 | Permanent magnetic operating mechanism for intelligent circuit breaker |
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Address after: 400044 No. 174 Shapingba street, Shapingba District, Chongqing Patentee after: Chongqing University Patentee after: Chongqing Guangren Iron Tower Manufacture Co.,Ltd. Address before: 400044 No. 174 Shapingba street, Shapingba District, Chongqing Patentee before: Chongqing University Patentee before: CHONGQING GUANGREN TOWER MANUFACTURING Co.,Ltd. |
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