CN204857576U - Looped netowrk cabinet and vacuum circuit breaker thereof - Google Patents
Looped netowrk cabinet and vacuum circuit breaker thereof Download PDFInfo
- Publication number
- CN204857576U CN204857576U CN201520420062.8U CN201520420062U CN204857576U CN 204857576 U CN204857576 U CN 204857576U CN 201520420062 U CN201520420062 U CN 201520420062U CN 204857576 U CN204857576 U CN 204857576U
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- China
- Prior art keywords
- main shaft
- connecting lever
- axis
- vacuum circuit
- isolating switch
- Prior art date
- 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
- 239000002184 metal Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 abstract description 11
- 230000005389 magnetism Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides a looped netowrk cabinet and vacuum circuit breaker thereof. Vacuum circuit breaker includes permanent magnetism operation module, vacuum interrupter and support. Permanent magnetism operation module includes permanent magnetic mechanism, first pivot, first turning arm, main shaft, second turning arm and second pivot. Permanent magnetic mechanism includes the output shaft. First turning arm is rotatable to be located in the first pivot. The one end and the output shaft of first turning arm, the output shaft drives first turning arm and rotates. The one end of main shaft is connected with the other end of first turning arm. First turning arm rotates and drives main shaft along reciprocating axially. The second turning arm is rotatable locate the second pivot on, the one end of second turning arm is connected with the other end of main shaft. The second turning arm rotates, and the other end of second turning arm is connected with vacuum interrupter's the conducting rod that moves, and the conducting rod that moves that drives vacuum interrupter moves. Above -mentioned looped netowrk cabinet avoids using the epoxy plate, has avoided mechanical motion to the wearing and tearing of epoxy plate and cause the vacuum circuit breaker characteristic to take place the skew, improves vacuum circuit breaker's life.
Description
Technical field
The utility model relates to electric device, particularly relates to ring main unit and vacuum circuit-breaker thereof.
Background technology
The vacuum circuit breaker mechanism of ring main unit adapted is of a great variety, and quality is uneven.Vacuum circuit-breaker mainly comprises three parts: vacuum interrupter, operating mechanism, support and miscellaneous part.The electric-conductor of traditional vacuum circuit-breaker and vacuum interrupter adopt epoxy plate composition clamp region, and vacuum interrupter is arranged between two laminated planks.The fixtures such as bolt rely on epoxy plate support completely.
Vacuum interrupter is provided with moving conductive rod, when moving conductive rod drives contact or the disconnection of vacuum extinction formula, thus makes vacuum circuit-breaker opening and closing lock.In vacuum circuit-breaker opening and closing lock motion process, epoxy plate is rubbed, and easily causes the installing hole on epoxy plate to wear and tear, installing hole is made to become large, thus cause opening of vacuum circuit-breaker to change apart from, stroke, vacuum interrupter can be caused time serious to puncture, shorten the useful life of ring main unit.
Utility model content
Based on this, be necessary to provide one can prevent contract short-life ring main unit and vacuum circuit-breaker thereof due to epoxy plate wearing and tearing.
A kind of vacuum circuit-breaker, comprise permanent magnet operating assembly, vacuum interrupter and support, described vacuum interrupter is provided with moving conductive rod, described permanent magnet operating assembly and described vacuum interrupter are fixed on described support, described permanent magnet operating assembly comprises permanent magnet mechanism, first rotating shaft, first connecting lever, main shaft, second connecting lever and the second rotating shaft, described permanent magnet mechanism comprises output shaft, described first rotating shaft is fixed on described support, described first connecting lever is rotatably located in described first rotating shaft, one end of described first connecting lever is connected with described output shaft, described output shaft drives described first connecting lever to rotate, one end of described main shaft is connected with the other end of described first connecting lever, described main shaft is crossing with the bearing of trend of described output shaft, described first connecting lever rotates and drives the reciprocating motion vertically of described main shaft, described second rotating shaft is fixed on described support, described second connecting lever is rotatably located in described second rotating shaft, one end of described second connecting lever is connected with the other end of described main shaft, described main shaft moves vertically and drives described second connecting lever around the second axis of rotation, the other end of described second connecting lever is connected with the moving conductive rod of described vacuum interrupter, the moving conductive rod of described vacuum interrupter is then driven to move.
Wherein in an embodiment, described first connecting lever and described second connecting lever triangular in shape.
Wherein in an embodiment, described vacuum interrupter also comprises insulated tension pole, described main shaft is metal main shaft, and one end of described insulated tension pole is connected with described second connecting lever one end away from described main shaft, and the other end of described insulated tension pole is connected with described moving conductive rod.
Wherein in an embodiment, the bearing of trend of described main shaft and described output shaft intersects vertically.
Wherein in an embodiment, described permanent magnet mechanism also comprises the axis of guide, and the described axis of guide is connected for coaxial with described output shaft, and the described axis of guide is for controlling isolating switch.
Wherein in an embodiment, described permanent magnet mechanism is bistable-state permanent magnet mechanism or Monostable permanent magnetic mechanism.
A kind of ring main unit, comprises above-mentioned vacuum circuit-breaker, isolating switch and closed gas tank, and it is inner that described vacuum circuit-breaker and described isolating switch are arranged on described closed gas tank.
Wherein in an embodiment, also comprise pole, described vacuum interrupter sealing is in described pole.
Wherein in an embodiment, the two opposite side surfaces of described pole is equipped with outlet terminal.
Wherein in an embodiment, described isolating switch comprises isolating switch main shaft, interlocking member, conduction axis, ratchet and limiting plate, described permanent magnet mechanism also comprises the axis of guide, the described axis of guide is connected for coaxial with described output shaft, the described axis of guide is connected with described output shaft, the described axis of guide is for controlling isolating switch, described isolating switch main shaft is connected with the described axis of guide, described axis of guide motion drives described isolating switch main shaft to rotate, described interlocking member connects described isolating switch main shaft and described ratchet, described ratchet is fixed on described conduction axis, the periphery of described limiting plate offers limited impression, described ratchet and limited impression are oppositely arranged, described isolating switch main shaft rotating band moves the motion of described interlocking member, described interlocking member motion drives described conduction axis to rotate, described conduction axis rotates and drives described ratchet to pass in and out described limited impression.
The vacuum circuit-breaker of above-mentioned ring main unit adopts permanent magnet operating assembly as operating mechanism, and first, the amount of parts of ring main unit significantly reduces, and makes the structure of above-mentioned ring main unit simple, is convenient to safeguard.Secondly, permanent magnet operating assembly is as the operating mechanism of vacuum circuit-breaker, vacuum circuit-breaker is redesigned, avoid using epoxy plate, avoiding mechanical movement causes vacuum circuit-breaker characteristic to offset to the wearing and tearing of epoxy plate, improve the useful life of vacuum circuit-breaker, the mechanical endurance of above-mentioned vacuum circuit-breaker rises to 100,000 times.
Accompanying drawing explanation
Fig. 1 is the structural representation of the ring main unit of present embodiment;
The cutaway view along A-A that Fig. 2 is the ring main unit shown in Fig. 1;
Fig. 3 is the end view of the ring main unit shown in Fig. 1;
Fig. 4 under the vacuum circuit-breaker shown in Fig. 1 is in "on" position, the schematic diagram that the isolating switch of combined floodgate is in the lock state;
Fig. 5 under the vacuum circuit-breaker shown in Fig. 4 is in "on" position, the schematic diagram that the isolating switch of opening a sluice gate is in the lock state;
Fig. 6 is under the vacuum circuit-breaker shown in Fig. 4 is in the state of opening a sluice gate, and the isolating switch of opening a sluice gate is in the schematic diagram of operable state;
Fig. 7 is under the vacuum circuit-breaker shown in Fig. 4 is in the state of opening a sluice gate, and the isolating switch of combined floodgate is in the schematic diagram of operable state.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Better embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to execution mode described herein.On the contrary, provide the object of these execution modes be make to disclosure of the present utility model understand more thorough comprehensively.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique execution mode.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in specification of the present utility model herein just in order to describe concrete execution mode, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Refer to Fig. 1 and Fig. 2, the ring main unit 100 of present embodiment comprises closed gas tank 110, vacuum circuit-breaker 140 and isolating switch 150.It is inner that vacuum circuit-breaker 140 and isolating switch 150 are arranged on closed gas tank 110.
Vacuum circuit-breaker 140 comprises permanent magnet operating assembly 120 and vacuum interrupter 130 and support 139, and permanent magnet operating assembly 120 and vacuum interrupter 130 are fixed on support 139.
Specifically in the present embodiment, vacuum interrupter 130 and the conductive pieces relevant to vacuum circuit-breaker 140 are embedded in the solid insulating material of this kind of easy solidification of epoxy resin simultaneously and form pole 160, pole 160 makes whole vacuum interrupter 130 and the conductive pieces relevant to vacuum circuit-breaker 140 become as a whole parts.The two opposite side surfaces of pole 160 is equipped with outlet terminal 161.Outlet terminal 161 is multiple, can conveniently connect up.Circuit can be drawn from the both sides of pole 160, facilitates the wires design of whole ring main unit 100, wiring is distributed simple.
Permanent magnet operating assembly 120 comprises permanent magnet mechanism 121, first connecting lever 122, main shaft 123, second connecting lever 124, first rotating shaft 126 and the second rotating shaft 129.
Permanent magnet mechanism 121 comprises output shaft 125.Permanent magnet mechanism 121 obtains electric, and output shaft 125 can move up or down.Refer to Fig. 3, specifically in the present embodiment, ring main unit 100 comprises switch knob 101 and opening button 102.By press switch knob 101 and opening button 102 can make permanent magnet mechanism 121 electric.Be the contrary two kinds of electric currents in direction by switch knob 101 and the electric current by opening button 102.Permanent magnet mechanism 121, according to passing into sense of current, controls the direction of motion of the output shaft 125 of permanent magnet mechanism 121.
Be appreciated that permanent magnet mechanism 121 can be bistable-state permanent magnet mechanism or Monostable permanent magnetic mechanism.
Refer to Fig. 1, one end of the first connecting lever 122 is connected with output shaft 125, and the other end is connected with one end of main shaft 123.First connecting lever 122 is triangular in shape.The centre of the first connecting lever 122 is provided with shaft hole (figure does not mark).First rotating shaft 126 is fixed on support 139.First rotating shaft 126, through the shaft hole of the first connecting lever 122, makes the first connecting lever 122 rotatably be located in the first rotating shaft 126.
One end of main shaft 123 and the first connecting lever 122 are rotatably connected away from one end of permanent magnet mechanism 121, and one end of the other end and the second connecting lever 124 is rotatably connected.Main shaft 123 is crossing with the bearing of trend of output shaft 125.Specifically in the present embodiment, main shaft 123 and output shaft 125 intersect vertically.
One end away from main shaft 123 of second connecting lever 124 is connected with vacuum circuit-breaker 140.Second connecting lever 124 is triangular in shape.The centre of the second connecting lever 124 is provided with shaft hole (figure does not mark).Second rotating shaft 129 is fixed on support 139, and the second rotating shaft 129 is set up in the top of pole 160.Second rotating shaft 129, through the shaft hole of the second connecting lever 124, makes the second connecting lever 124 rotatable around the second rotating shaft 129.
Specifically in the present embodiment, main shaft 123 is metal main shaft.Refer to Fig. 2, vacuum interrupter 130 also comprises insulated tension pole 127, and namely one end of insulated tension pole 127 and the other end of the second connecting lever 124, also connect away from one end of main shaft 123.Specifically in this enforcement side, the other end of insulated tension pole 127 is connected with the moving conductive rod 131 of vacuum interrupter 130, drives the moving conductive rod 131 of vacuum interrupter 130 to move, and controls vacuum circuit-breaker 140 points, closes a floodgate.Particularly, main shaft 123 adopts round steel material, and intensity enhancing can meet big current to vacuum interrupter 130 force request.
According to Fig. 1, when pressing switch knob 101, permanent magnet mechanism 121 obtains electric, and the output shaft 125 of permanent magnet mechanism 121 moves downward.Output shaft 125 moves downward and drives the first connecting lever 122 to rotate clockwise around the first rotating shaft 126 simultaneously, and the first connecting lever 122 drives main shaft 123 vertically near permanent magnet mechanism 121.Move one end of drive second connecting lever 124 of main shaft 123 rotates clockwise around the second rotating shaft 129, and the downward pressure holding insulated tension pole 127 of the other end of the second connecting lever 124, makes insulated tension pole 127 move downward.Insulated tension pole 127 moves downward and the moving conductive rod 131 of vacuum interrupter 130 is moved downward, and vacuum circuit-breaker 140 realizes energising motion of closing a floodgate.
If desired separating brake power-off operation, presses opening button 102, and output shaft 125 moves upward and drives the first connecting lever 122 to rotate counterclockwise around the first rotating shaft 126 simultaneously, and the first connecting lever 122 drives main shaft 123 vertically away from permanent magnet mechanism 121.Move one end of drive second connecting lever 124 of main shaft 123 rotates counterclockwise around the second rotating shaft 129, and the other end of the second connecting lever 124 upwards pulls insulated tension pole 127, and insulated tension pole 127 is moved upward.Insulated tension pole 127 moves upward and the moving conductive rod 131 of vacuum interrupter 130 is moved upward, and vacuum circuit-breaker 140 realizes separating brake power-off campaign.
Specifically in the present embodiment, refer to Fig. 3, vacuum circuit-breaker 140 is provided with separating brake instruction 141, under vacuum circuit-breaker 140 is in separating brake off-position, and these separating brake off-positions of separating brake instruction 141 display.
Refer to Fig. 1, permanent magnet mechanism 121 also comprises the axis of guide 128.The axis of guide 128 is located at the below of output shaft 125, and the axis of guide 128 one end is connected for coaxial with output shaft 125.Output shaft 125 moves up and down and drives the axis of guide 128 to move up and down simultaneously.The other end of the axis of guide 128 is connected with isolating switch 150.Output shaft 125 drives the axis of guide 128 to move, and controls the mode of operation of isolating switch 150.
Refer to Fig. 4, isolating switch 150 is provided with isolating switch main shaft 151, interlocking member 152, conduction axis 153, ratchet 154, limiting plate 155 and operating axis 156.The axis of guide 128 is connected with isolating switch main shaft 151.The axis of guide 128 moves downward, and isolating switch main shaft 151 is rotated clockwise; The axis of guide 128 moves upward, and isolating switch main shaft 151 is rotated counterclockwise.Interlocking member 152 comprises multiple junction panel 1521.Be rotatably connected between multiple junction panel 1521.Isolating switch main shaft 151 is fixedly connected with one end of interlocking member 152, and isolating switch main shaft 151 rotates and drives junction panel 1521 to move.The other end of interlocking member 152 is fixedly connected with conduction axis 153, and junction panel 1521 moves and drives conduction axis 153 to rotate.Ratchet 154 is fixedly connected with conduction axis 153, and conduction axis 153 rotates, and drives ratchet 154 to rotate.The periphery of limiting plate 155 offers limited impression 1551.The end of ratchet 154 is provided with hook part 1541.Hook part 1541 and limited impression 1551 are oppositely arranged.Ratchet 154 moves, and makes the hook part 1541 of ratchet 154 pass in and out limited impression 1551, controls isolating switch 150 lock-out state.
Manually rotation process axle 156, controls the opening and closing lock state of isolating switch 150.Particularly, please refer to Fig. 3, the closed gas tank 110 of ring main unit 100 offers isolator operation hole 113.Isolator operation hole 113 is relative with operating axis 156, and operating personnel are rotated by 113 pairs, isolator operation hole operating axis 156.
Refer to Fig. 4 and Fig. 5, when output shaft 125 moves downward, vacuum circuit-breaker 140 is in combined floodgate "on" position.Output shaft 125 drives isolating switch main shaft 151 to rotate clockwise, and the hook part 1541 of ratchet 154 snaps in limited impression 1551, and ratchet 154 locks limited impression 1551, and isolating switch 150 can not be operated, and namely isolating switch 150 is in the lock state.When isolating switch 150 is in the lock state, even if rotation process axle 156, isolating switch 150 also can not rotate.Therefore, when vacuum circuit-breaker 140 is in combined floodgate "on" position time, can not to carry out point isolating switch 150, closing operation, prevent from producing misoperation to isolating switch 150, improve the fail safe that ring main unit 100 uses.
Refer to Fig. 6 and Fig. 7, when output shaft 125 moves upward, vacuum circuit-breaker 140 is in separating brake off-position.Output shaft 125 drives isolating switch main shaft 151 to rotate counterclockwise, and limited impression 1551 is exited in the hook part 1541 of ratchet 154, and ratchet 154 is separated with limited impression 1551.Operating personnel can pass through rotation process axle 156, rotary spacing plate 155, and isolating switch 150 carries out deciliter, lock operation, and namely isolating switch 150 is in operable state.When ensureing that vacuum circuit-breaker 140 is in separating brake off-position, operating personnel could operate isolating switch 150, prevent operating personnel from getting an electric shock.
The vacuum circuit-breaker 140 of above-mentioned ring main unit 100 adopts permanent magnet operating assembly 120 as operating mechanism, and first, the amount of parts of ring main unit 100 significantly reduces, and makes the structure of above-mentioned ring main unit 100 simple, is convenient to safeguard.Secondly, permanent magnet operating assembly 120 is as the operating mechanism of vacuum circuit-breaker 140, vacuum circuit-breaker 140 is redesigned, avoid using epoxy plate, avoiding mechanical movement causes vacuum circuit-breaker 140 characteristic to offset to the wearing and tearing of epoxy plate, improve the useful life of vacuum circuit-breaker 140, the mechanical endurance of above-mentioned vacuum circuit-breaker 140 rises to 100,000 times.
Further, by machine driving between permanent magnet operating assembly 120 and vacuum interrupter 130, there is stronger intensity and stability.And use metal main shaft 123, the whole running part of vacuum circuit-breaker 140 and the intensity of holding components are improved greatly, the dynamic stability requirement of large-capacity vacuum circuit breaker 140 can be met.It is even higher that the rated current of vacuum circuit-breaker 140 is upgraded to 1250A by existing 630A by above-mentioned ring main unit 100, and drop-out current is promoted to 31.5KA by 20KA.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. a vacuum circuit-breaker, comprise permanent magnet operating assembly, vacuum interrupter and support, described vacuum interrupter is provided with moving conductive rod, described permanent magnet operating assembly and described vacuum interrupter are fixed on described support, it is characterized in that, described permanent magnet operating assembly comprises permanent magnet mechanism, first rotating shaft, first connecting lever, main shaft, second connecting lever and the second rotating shaft, described permanent magnet mechanism comprises output shaft, described first rotating shaft is fixed on described support, described first connecting lever is rotatably located in described first rotating shaft, one end of described first connecting lever is connected with described output shaft, described output shaft drives described first connecting lever to rotate, one end of described main shaft is connected with the other end of described first connecting lever, described main shaft is crossing with the bearing of trend of described output shaft, described first connecting lever rotates and drives the reciprocating motion vertically of described main shaft, described second rotating shaft is fixed on described support, described second connecting lever is rotatably located in described second rotating shaft, one end of described second connecting lever is connected with the other end of described main shaft, described main shaft moves vertically and drives described second connecting lever around the second axis of rotation, the other end of described second connecting lever is connected with the moving conductive rod of described vacuum interrupter, the moving conductive rod of described vacuum interrupter is then driven to move.
2. vacuum circuit-breaker according to claim 1, is characterized in that, described first connecting lever and described second connecting lever triangular in shape.
3. vacuum circuit-breaker according to claim 1, it is characterized in that, described vacuum interrupter also comprises insulated tension pole, described main shaft is metal main shaft, one end of described insulated tension pole is connected with described second connecting lever one end away from described main shaft, and the other end of described insulated tension pole is connected with described moving conductive rod.
4. vacuum circuit-breaker according to claim 1, is characterized in that, the bearing of trend of described main shaft and described output shaft intersects vertically.
5. vacuum circuit-breaker according to claim 1, is characterized in that, described permanent magnet mechanism also comprises the axis of guide, and the described axis of guide is connected for coaxial with described output shaft, and the described axis of guide is for controlling isolating switch.
6. vacuum circuit-breaker according to claim 1, it is characterized in that, described permanent magnet mechanism is bistable-state permanent magnet mechanism or Monostable permanent magnetic mechanism.
7. a ring main unit, is characterized in that, comprises the vacuum circuit-breaker described in claim 1-6 any one, isolating switch and closed gas tank, and it is inner that described vacuum circuit-breaker and described isolating switch are arranged on described closed gas tank.
8. ring main unit according to claim 7, is characterized in that, also comprises pole, and described vacuum interrupter sealing is in described pole.
9. ring main unit according to claim 8, is characterized in that, the two opposite side surfaces of described pole is equipped with outlet terminal.
10. ring main unit according to claim 7, it is characterized in that, described isolating switch comprises isolating switch main shaft, interlocking member, conduction axis, ratchet and limiting plate, described permanent magnet mechanism also comprises the axis of guide, the described axis of guide is connected for coaxial with described output shaft, the described axis of guide is connected with described output shaft, the described axis of guide is for controlling isolating switch, described isolating switch main shaft is connected with the described axis of guide, described axis of guide motion drives described isolating switch main shaft to rotate, described interlocking member connects described isolating switch main shaft and described ratchet, described ratchet is fixed on described conduction axis, the periphery of described limiting plate offers limited impression, described ratchet and limited impression are oppositely arranged, described isolating switch main shaft rotating band moves the motion of described interlocking member, described interlocking member motion drives described conduction axis to rotate, described conduction axis rotates and drives described ratchet to pass in and out described limited impression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520420062.8U CN204857576U (en) | 2015-06-17 | 2015-06-17 | Looped netowrk cabinet and vacuum circuit breaker thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520420062.8U CN204857576U (en) | 2015-06-17 | 2015-06-17 | Looped netowrk cabinet and vacuum circuit breaker thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204857576U true CN204857576U (en) | 2015-12-09 |
Family
ID=54748103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520420062.8U Expired - Fee Related CN204857576U (en) | 2015-06-17 | 2015-06-17 | Looped netowrk cabinet and vacuum circuit breaker thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204857576U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207840A (en) * | 2016-08-03 | 2016-12-07 | 江苏尔悦电力设备有限公司 | A kind of insulation ring main unit |
| CN111816501A (en) * | 2020-07-15 | 2020-10-23 | 长园电力技术有限公司 | A permanent magnet ring network cabinet transmission mechanism |
-
2015
- 2015-06-17 CN CN201520420062.8U patent/CN204857576U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207840A (en) * | 2016-08-03 | 2016-12-07 | 江苏尔悦电力设备有限公司 | A kind of insulation ring main unit |
| CN106207840B (en) * | 2016-08-03 | 2018-03-30 | 江苏尔悦电力设备有限公司 | One kind insulation ring main unit |
| CN111816501A (en) * | 2020-07-15 | 2020-10-23 | 长园电力技术有限公司 | A permanent magnet ring network cabinet transmission mechanism |
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| 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: 20151209 Termination date: 20210617 |