CN203882867U - Permanent magnet vacuum circuit breaker - Google Patents
Permanent magnet vacuum circuit breaker Download PDFInfo
- Publication number
- CN203882867U CN203882867U CN201420308885.7U CN201420308885U CN203882867U CN 203882867 U CN203882867 U CN 203882867U CN 201420308885 U CN201420308885 U CN 201420308885U CN 203882867 U CN203882867 U CN 203882867U
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- Prior art keywords
- ratchet
- drive rod
- spring
- permanent magnet
- switching
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 67
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 230000033001 locomotion Effects 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract 1
- 238000010248 power generation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 11
- 230000009471 action Effects 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- UTKFUXQDBUMJSX-UHFFFAOYSA-N boron neodymium Chemical compound [B].[Nd] UTKFUXQDBUMJSX-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a permanent magnet vacuum circuit breaker which includes a breaker body and a controller. The controller includes a permanent magnet mechanism and a manual closing mechanism. A key point of a technical scheme of the permanent magnet vacuum circuit breaker is that the manual closing mechanism is formed by a one-way gear and a lever mechanism in a combined manner so that a defect that a permanent magnet vacuum mechanism cannot be manually closed is overcome and characteristics of a high breaking and closing operation speed and a high safety performance are obtained. A breaking and closing operation can be carried out by means of the breaker although a power supply not exists, thereby solving a problem that a manual operation of the breaker is inconvenient without the power supply. A closing operation on an outdoor branch wire of a conventional permanent magnet vacuum circuit breaker requires a generator for charging and a power generation device is very difficult to carry in remote mountainous areas so that operation difficulty of a related operator is increased.
Description
Technical field
The utility model relates to a kind of circuit protection device, and more particularly, it relates to a kind of circuit breaker.
Background technology
Permanent magnetic vacuum breaker is mainly made up of vacuum circuit breaker body, controller and external voltage transformer three parts; three is electrically connected by aviation socket and outdoor hermetically-sealed cable; there is fault detection capability; function and communication function are controlled in protection; can reliably judge, sense switch is into and out of milliampere level zero-sequence current and the phase fault electric current of line side, realizes excision single phase ground fault and phase fault automatically.
Permanent magnetic vacuum breaker adopts permanent-magnet manipulating mechanism, on branch line, close out of doors and all will utilize generator charging to operate, and at next manual brake separating or the combined floodgate of cannot carrying out of the situation that there is no power supply, such permanent magnetic vacuum breaker because carrying generating equipment is extremely difficult, has increased operating personnel's work difficulty in some remote mountain areas.Therefore in the recent period occurred that on the market the Chinese patent that some permanent magnetic vacuum breakers with manual divide-shut brake are CN203179784U as notification number discloses a kind of phased vacuum permanent magnet circuit breaker manual synchronization brake separating mechanism, can realize the phased vacuum permanent magnet circuit breaker of armstrong's patent simultaneous break, by rotating AB phase camshaft, drive C phase camshaft synchronously to rotate by synchronizing bar, when camshaft is during to 45 ° of anticlockwises, the connecting lever of camshaft can order about phase-control permanent magnet circuit breaker three-phase synchronous separating brake, and the asynchronous time is less than 3ms.It is characterized in that: AB phase camshaft and C phase camshaft are coupled together with synchronizing bar, can accurately realize AB phase and C phase camshaft and keep equidirectional same angle rotation, anglec of rotation error is less than 1 °.The link gear of this utility model can complete the mechanical synchronization separating brake of phased vacuum permanent magnet circuit breaker under power down mode; can avoid phased vacuum permanent magnet circuit breaker three characteristics of the middle term Voltage unbalance in the time of asynchronous separating brake to cause the misoperation of protection, avoid the electric infringement of imbalance of three-phase voltage to power load and electric equipment.
But, although above-mentioned patent has solved the problem of manually controlling in permanent magnetic vacuum breaker with control can not be had both automatically, but manual manipulation mechanism closing speed is wherein slow, and lack self-locking mechanism, in divide-shut brake process, easily occur that because tripping mechanism swings back and forth a large amount of sparks cause switching-on mechanism to burn out or occur security incident, its security performance need to strengthen.
Summary of the invention
The deficiency existing for prior art, the purpose of this utility model is to provide the permanent magnetic vacuum breaker that has manual control concurrently and automatically control that a kind of closing speed is fast, security performance is high.
For achieving the above object, the utility model provides following technical scheme:
A kind of permanent magnetic vacuum breaker, comprise breaker body and controller, described controller comprises mechanism case, electromagnetism close/open machine, one side of described mechanism case is that combined floodgate side and opposite side are separating brake side, described separating brake side, between combined floodgate side, set up drive rod, on described drive rod, be provided with moving contact, on described breaker body, be provided with the fixed contact with described moving contact clamping, described drive rod and breaker body link together by the clamping of described moving contact and fixed contact, described electromagnetism close/open machine is arranged on separating brake side and comprises moving iron core, static iron core, closing coil, switching winding and the first permanent magnet, wherein:
Between the inwall of described mechanism case and moving iron core, be provided with the tripping spring with the coaxial setting of described drive rod, described tripping spring one end is connected with the inwall of mechanism case and the other end is connected with drive rod, and described tripping spring can stretch vertically or stretch under the pressure-acting of described moving iron core and described mechanism case inwall;
Described controller also comprises manual closing mechanism, and described manual closing mechanism is arranged on described combined floodgate side, and described manual closing mechanism comprises handle, ratchet, cam and switching-in spring,
Described handle comprises fixed lever and dwang, described dwang is connected to the periphery of described fixed lever and drives described fixed lever to rotate by described dwang, described fixed lever one end extends in described mechanism case outside, and the other end is plugged in the gear hole of described ratchet through described mechanism case inwall;
Described cam is arranged in described mechanism case, comprises operating portion and moving runner, and described moving runner can be intermeshing with described ratchet;
Described rotation section is connected on described operating portion by a rotating shaft and described rotation section can be rotated around described rotating shaft, described switching-in spring one end is connected with drive rod, the other end is connected on the operating portion of described cam, and by described switching-in spring drive described operating portion do with respect to described ratchet near or away from motion.
By adopting technique scheme, electromagnetism close/open machine and manually close/open machine are separately positioned on drive rod two ends and are linked and made described permanent magnetic vacuum breaker have manual control concurrently and automatically control two kinds and control function by drive rod, in the time of closing by hand, rotate described cam by handle, in cam rotation process, elongate described switching-in spring, be stretched to after the limit described switching-in spring is stressed, described spring drives drive rod motion, described drive rod promotes moving contact makes described moving contact and fixed contact fasten combined floodgate, utilize the distortion of spring to ensure closing speed, adopt ratchet to play auto-lock function, can in rotation process, can only turn round toward single direction by limiting gear, prevent from occurring that gear reverse causes repeatedly closing a floodgate in making process, separating brake causes a large amount of electric arc, spark and occur security incident, described permanent magnetic vacuum breaker both can have in electric situation automatic closing also can adopt manual mode to complete feed motion not having in electric, be that electromagnetic operating mechanism charging or use crowbar close a floodgate by adopting lever operated replacement carrying generator, simplify permanent magnetic vacuum breaker operating procedure, utilize ratchet locking manual closing mechanism simultaneously, in preventing from closing a floodgate, occur unexpected, performance tightens security.
The utility model is further set to: described switching-in spring closes drive rod and is set to lever connection.
By adopting technique scheme; between described switching-in spring and drive rod, be provided with lever; described switching-in spring is connected on the long arm of force of lever; described drive rod is connected on the short arm of force of lever; utilize lever principle to make described switching-in spring pull the required pulling force of drive rod to be down to minimum; reduce the length that switching-in spring is stretched in labour-saving simultaneously; play the effect of protection switching-in spring; extend the useful life of switching-in spring described in it, indirectly improved the security performance of described permanent magnetic vacuum breaker.
The utility model is further set to: described switching-in spring side is provided with the second permanent magnet.
By adopting technique scheme, described the second permanent magnet has magnetic attraction to cam, and in separating brake, described the second permanent magnet can provide a part of separating brake power, accelerates separating brake action, reduces the generation of separating brake electric arc.
The utility model is further set to: described ratchet is set to ratchet, is provided with the ratchet with ratchet adaptation on described handle.
By adopting technique scheme, it is fairly simple, effectively a kind of that described ratchet structure belongs in ratchet, coordinate by pawl-and-gearing tooth, just be enough to reach the effect of the manual close/open machine of unidirectional control, in the process of turning handle, handle can rotate to both direction, but only have a direction can rotate described ratchet, other direction is real is idle running, conveniently in closing by hand process, not only can adjust handle turned position but also limiting gear group can only single direction running in good time.
The utility model is further set to: described separating brake side is provided with emergency opening mechanism, described emergency opening mechanism comprises separating brake handle and kinematic link, described separating brake handle is fixedly connected with kinematic link, and described kinematic link and mechanism case are hinged, and described drive rod is connected with drive rod lever.
By adopting technique scheme, described permanent magnetic vacuum breaker can complete emergency opening by described emergency opening mechanism, in the time of permanent magnet opening and closing failure mechanisms, rotate described separating brake handle, described kinematic link drives moving contact motion to make it deviate from fixed contact and completes separating brake action, ensure that described permanent magnetic vacuum breaker can cut off separating brake at any time, guarantee that it has emergency cut-off measure.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model permanent magnetic vacuum breaker embodiment;
Fig. 2 is the lateral plan of the utility model permanent magnetic vacuum breaker embodiment;
Fig. 3 is manual closing mechanism schematic diagram in the utility model permanent magnetic vacuum breaker embodiment;
Fig. 4 is urgent close/open machine schematic diagram in the utility model permanent magnetic vacuum breaker embodiment.
Description of reference numerals: 1. breaker body; 2. controller; 21. electromagnetism close/open machines; 211. moving iron cores; 212. static iron core; 213. switching winding; 214. closing coil; 215. first permanent magnets; 216. drive rod; 22. manual closing mechanisms; 221. handle; 222. ratchet; 223. cam; 224. switching-in spring; 225. tripping spring; 226. ratchet; 227. leverage; 228. emergency opening mechanism; 229; The second permanent magnet; 230; Operating portion; 231. rotation section; 232. separating brake handles; 233. kinematic link; 23. mechanism cases; 24. separating brake sides; 25. combined floodgate sides; 3. moving contact; 4. fixed contact.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model permanent magnetic vacuum breaker embodiment is described further.
A kind of permanent magnetic vacuum breaker, comprise breaker body 1 and controller 2, described controller 2 comprises control mechanism case 23, electromagnetism close/open machine 21, the structure of breaker body 1 is the vertical three-phase column support type of casing, mainly by conduction arc quenching system, insulation system, current transformer, drive system, the five part compositions such as housing, one side of described mechanism case 23 be combined floodgate side 25 and with opposite side be separating brake side 24, described separating brake side 24, between combined floodgate side 25, set up drive rod 216, on described drive rod 216, be provided with moving contact 3, on described breaker body 1, be provided with can with the fixed contact 4 of described moving contact 3 clampings, described drive rod 216 links together by the clamping of described moving contact 3 and described fixed contact 4 with described breaker body 1, described electromagnetism close/open machine 21 is arranged on separating brake side 24 and comprises moving iron core 211, static iron core 212, closing coil 214, switching winding 213 and the first permanent magnet 215, wherein:
Between the inwall of described mechanism case 23 and moving iron core 211, be provided with the tripping spring 225 with described drive rod 216 coaxial settings, described tripping spring 225 one end are connected with the inwall of mechanism case 23 and the other end is connected with drive rod 216, and described tripping spring 225 can stretch vertically or stretch under the pressure-acting of described moving iron core 211 and described mechanism case 23 inwalls;
Described controller 2 also comprises manual closing mechanism 22, and described manual closing mechanism 22 is arranged on described combined floodgate side 25, and described manual closing mechanism 22 comprises handle 221, ratchet 222, cam 223 and switching-in spring 224,
Described handle 221 comprises fixed lever and dwang, described dwang is connected to the periphery of described fixed lever and drives described fixed lever to rotate by described dwang, described fixed lever one end extends in described mechanism case 23 outsides, and the other end is plugged in the gear hole of described ratchet 222 through described mechanism case 23 inwalls;
Described cam 223 is arranged in described mechanism case 23, comprises operating portion 230 and moving runner, and described moving runner can be intermeshing with described ratchet 222;
Described rotation section 231 is connected on described operating portion 230 by a rotating shaft and described rotation section 231 can be rotated around described rotating shaft, described switching-in spring 224 one end are connected with drive rod 216, the other end is connected on the operating portion 230 of described cam 223, and by described switching-in spring 224 drive described operating portion 230 do with respect to described ratchet 222 near or away from motion.
Described electromagnetism close/open machine principle: when described permanent magnetic vacuum breaker is during in open position, between described moving iron core 211 and switching winding 213, air gap is little, magnetic resistance is low, large with closing coil 214 air gaps, magnetic resistance is high, therefore the magnetic field Main Function of the first permanent magnet 215 and moving iron core 211 are near one end of switching winding 213, magnetic field force in described mechanism keeps moving iron core 211 to stop at the position near switching winding 213, make described permanent magnetic vacuum breaker in gate-dividing state, in the time that permanent magnetic vacuum breaker need to close a floodgate, can first make closing coil 214 switch on, the magnetic line of force in its magnetic field producing mainly concentrates on one end of the close closing coil 214 of moving iron core 211, and offset at the magnetic line of force in the magnetic field forming near switching winding 213 one end and the first permanent magnet 215, follow the rising of exciting curent, to increase near switching winding 213 end suction, to weaken near closing coil 214 end end suction, when being greater than counter-force near closing coil 214 end suction, be that coil current reaches after shake-up value, moving iron core 211 will start towards closing coil 214 end motions, in the time that moving iron core 211 moves to terminal location, moving contact 3 completes combined floodgate with fixed contact 5 clampings, permanent magnet in vacuum permanent magnet circuit breaker selects NdFeB rear-earth material to make at present, neodymium boron permanent magnet is being subject to intense mechanical impact, high temperature and opposing magnetic field are done the used time some or all of demagnetization of equal possibility but can't be affected its utilization in the true circuit breaker of permanent magnetism.
Described manual closing mechanism principle: in the time of closing by hand, described permanent magnetic vacuum breaker is in gate-dividing state, described moving contact 3 separates with fixed contact 5, rotate described handle 221, described handle 221 drives ratchet 222 to turn round, described ratchet 222 engages with described cam 223, on described cam 223, connect switching-in spring 224, in described cam 223 rotation processes, elongate described switching-in spring 224, be stretched to after the limit described switching-in spring 224 is stressed, described spring drives drive rod 216 to move, described drive rod 216 promotes moving contact 3 makes described moving contact 3 fasten combined floodgate with fixed contact 5, adopt ratchet 222 in rotation process, can only turn round toward single direction by limiting gear, prevent from occurring that gear reverse causes repeatedly closing a floodgate in making process, separating brake causes a large amount of electric arc, spark and occur security incident, described permanent magnetic vacuum breaker both can have in electric situation automatic closing also can adopt manual mode to complete feed motion not having in electric, be that electromagnetic operating mechanism charges or uses crowbar to close a floodgate by adopting handle 221 operations to replace carrying generator, simplify permanent magnetic vacuum breaker operating procedure, utilize ratchet 222 to lock manual closing mechanism simultaneously, in preventing from closing a floodgate, occur unexpected, performance tightens security.
Described switching-in spring 224 closes drive rod 216 and is set to lever connection; between described switching-in spring 224 and drive rod 216, be provided with leverage 227; described switching-in spring 224 is connected on the long arm of force of leverage 227; described drive rod 216 is connected on the short arm of force of leverage 227; utilize lever principle to make described switching-in spring 224 pull the required pulling force of drive rod 216 to be down to minimum; reduce the length that switching-in spring 224 is stretched in labour-saving simultaneously; play the effect of protection switching-in spring 224, extend the useful life of switching-in spring 224 described in it.
Described switching-in spring 224 sides are provided with the second permanent magnet 229, described the second permanent magnet 229 has magnetic attraction to cam 223, and in separating brake, described the second permanent magnet 229 can provide a part of separating brake power, accelerate separating brake action, reduce the generation of separating brake electric arc.
Described ratchet 222 is set to ratchet 222, ratchet 222 is defined as the wheel with toothed surfaces or friction surface, promote to do step motion by ratchet 226, similar gear, coordinate with dialer, control the part of dialer conversion, on described handle 221, be provided with the ratchet 226 with ratchet 222 adaptations, described ratchet 226 is crotch shape and arranges, and the angle between described ratchet 226 and handle 221 is less than 90 degree, in the time that handle 221 is made left and right reciprocally swinging, ratchet 222 can only be done unidirectional intermittently-driving, described ratchet 222 structures belong to fairly simple in ratchet 222, effectively a kind of, coordinate by ratchet 226 and ratchet 222 teeth, in the process of rotation manual, can rotate to both direction, but only have a direction can rotate described ratchet 222, other direction is real is idle running, convenient in closing by hand process, not only handle 221 turned positions can have been adjusted but also limiting gear group can only single direction running in good time.
Described separating brake side 24 is provided with emergency opening mechanism 228, described emergency opening mechanism 228 comprises separating brake handle 232 and kinematic link 233, described separating brake handle 232 is fixedly connected with kinematic link 233, described kinematic link 233 is hinged with mechanism case 23, and described kinematic link 233 is connected with drive rod 216 levers, described permanent magnetic vacuum breaker can complete emergency opening by described emergency opening mechanism 228, in the time that permanent magnet opening and closing mechanism 21 lost efficacy, rotate described separating brake handle 221, described kinematic link drives moving contact 3 motions to make it deviate from fixed contact 5 and completes separating brake action, ensure that described permanent magnetic vacuum breaker can cut off separating brake at any time, guarantee that it has emergency cut-off measure.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. a permanent magnetic vacuum breaker, comprise breaker body and controller, described controller comprises mechanism case, electromagnetism close/open machine, one side of described mechanism case is that combined floodgate side and opposite side are separating brake side, described separating brake side, between combined floodgate side, set up drive rod, on described drive rod, be provided with moving contact, on described breaker body, be provided with the fixed contact with described moving contact clamping, described drive rod and breaker body link together by the clamping of described moving contact and fixed contact, described electromagnetism close/open machine is arranged on separating brake side and comprises moving iron core, static iron core, closing coil, switching winding and the first permanent magnet, it is characterized in that:
Between the inwall of described mechanism case and moving iron core, be provided with the tripping spring with the coaxial setting of described drive rod, described tripping spring one end is connected with the inwall of mechanism case and the other end is connected with drive rod, and described tripping spring can stretch vertically or stretch under the pressure-acting of described moving iron core and described mechanism case inwall;
Described controller also comprises manual closing mechanism, and described manual closing mechanism is arranged on described combined floodgate side, and described manual closing mechanism comprises handle, ratchet, cam and switching-in spring,
Described handle comprises fixed lever and dwang, described dwang is connected to the periphery of described fixed lever and drives described fixed lever to rotate by described dwang, described fixed lever one end extends in described mechanism case outside, and the other end is plugged in the gear hole of described ratchet through described mechanism case inwall;
Described cam is arranged in described mechanism case, comprises operating portion and moving runner, and described moving runner can be intermeshing with described ratchet;
Described rotation section is connected on described operating portion by a rotating shaft and described rotation section can be rotated around described rotating shaft, described switching-in spring one end is connected with drive rod, the other end is connected on the operating portion of described cam, and by described switching-in spring drive described operating portion do with respect to described ratchet near or away from motion.
2. permanent magnetic vacuum breaker according to claim 1, is characterized in that: described switching-in spring is set to lever with drive rod and is connected.
3. permanent magnetic vacuum breaker according to claim 1 and 2, is characterized in that: described switching-in spring side is provided with the second permanent magnet.
4. permanent magnetic vacuum breaker according to claim 3, is characterized in that: described ratchet is set to ratchet, is provided with the ratchet with ratchet adaptation on described handle.
5. permanent magnetic vacuum breaker according to claim 4, it is characterized in that: described separating brake side is provided with emergency opening mechanism, described emergency opening mechanism comprises separating brake handle and kinematic link, described separating brake handle is fixedly connected with kinematic link, described kinematic link and mechanism case are hinged, and described kinematic link is connected with drive rod lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308885.7U CN203882867U (en) | 2014-06-10 | 2014-06-10 | Permanent magnet vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308885.7U CN203882867U (en) | 2014-06-10 | 2014-06-10 | Permanent magnet vacuum circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN203882867U true CN203882867U (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420308885.7U Expired - Fee Related CN203882867U (en) | 2014-06-10 | 2014-06-10 | Permanent magnet vacuum circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN203882867U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021976A (en) * | 2014-06-10 | 2014-09-03 | 浙江伏尔特电器有限公司 | Permanent magnetic vacuum circuit breaker |
| CN104952665A (en) * | 2015-05-20 | 2015-09-30 | 保定通力电器设备有限公司 | Radiating outdoor vacuum breaker |
| CN107301933A (en) * | 2016-04-15 | 2017-10-27 | 江苏宏达电气有限公司 | Outdoor vacuum circuit breaker |
| CN107481890A (en) * | 2017-09-15 | 2017-12-15 | 环控电力科技有限公司 | Permanent magnet and drive rod integral type outdoor vacuum circuit breaker operating mechanism |
| CN115295367A (en) * | 2022-06-28 | 2022-11-04 | 长园电力技术有限公司 | Permanent magnetism breaker hand divides mechanism and looped netowrk cabinet |
-
2014
- 2014-06-10 CN CN201420308885.7U patent/CN203882867U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021976A (en) * | 2014-06-10 | 2014-09-03 | 浙江伏尔特电器有限公司 | Permanent magnetic vacuum circuit breaker |
| CN104021976B (en) * | 2014-06-10 | 2016-05-25 | 浙江伏尔特电器有限公司 | Permanent magnetic vacuum breaker |
| CN104952665A (en) * | 2015-05-20 | 2015-09-30 | 保定通力电器设备有限公司 | Radiating outdoor vacuum breaker |
| CN104952665B (en) * | 2015-05-20 | 2017-10-24 | 保定通力电器设备有限公司 | One kind radiating outdoor vacuum circuit breaker |
| CN107301933A (en) * | 2016-04-15 | 2017-10-27 | 江苏宏达电气有限公司 | Outdoor vacuum circuit breaker |
| CN107481890A (en) * | 2017-09-15 | 2017-12-15 | 环控电力科技有限公司 | Permanent magnet and drive rod integral type outdoor vacuum circuit breaker operating mechanism |
| CN115295367A (en) * | 2022-06-28 | 2022-11-04 | 长园电力技术有限公司 | Permanent magnetism breaker hand divides mechanism and looped netowrk cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20141015 |