CN204333611U - Solid insulation unit switch - Google Patents
Solid insulation unit switch Download PDFInfo
- Publication number
- CN204333611U CN204333611U CN201420526278.8U CN201420526278U CN204333611U CN 204333611 U CN204333611 U CN 204333611U CN 201420526278 U CN201420526278 U CN 201420526278U CN 204333611 U CN204333611 U CN 204333611U
- Authority
- CN
- China
- Prior art keywords
- moving contact
- switch
- vacuum interrupter
- plunger shaft
- feeler lever
- 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 - Lifetime
Links
- 239000007787 solid Substances 0.000 title claims abstract description 21
- 238000009413 insulation Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000002955 isolation Methods 0.000 claims abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 239000010985 leather Substances 0.000 claims description 7
- 230000001143 conditioned effect Effects 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 5
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910018503 SF6 Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
A kind of solid insulation unit switch, comprise vacuum interrupter, isolating switch and earthed switch, vacuum interrupter, isolating switch and earthed switch adopt solid insulating material to be coated in sealing pedestal, the fixed contact of vacuum interrupter is connected with busbar, the moving contact side of vacuum interrupter is provided with isolating switch, the plunger shaft for movable feeler lever knee-action is had in sealing pedestal, sealing block is installed in the lower end of movable feeler lever, conducting ring is installed in the bottom of movable feeler lever, movable feeler lever on the upside of conducting ring installs sealing ring, and the upper and lower both sides of outer wall of conducting ring arrange quiet watchband-shaped contactor respectively; Isolation terminals are installed at the middle part of plunger shaft, grounding connection seat is installed in the bottom of plunger shaft, one end of moving contact Connection Block is positioned at the top of plunger shaft, the other end of moving contact Connection Block is connected with the moving contact of vacuum interrupter, and the distance between moving contact Connection Block with isolation terminals is equal with the spacing of two quiet watchband-shaped contactors.The utility model effectively reduce take volume, the feature of environmental protection is good.
Description
Technical field
The utility model relates to a kind of switch.Particularly a kind ofly be integrated by vacuum interrupter and isolating switch, earthed switch the unit switch using solid insulation.
Background technology
Current power distribution system equipment is generally made up of isolating switch, vacuum interrupter, earthed switch etc., with bus, these autonomous devices are connected to form electric power system, its isolating switch, earthed switch be generally adopt guillotine type or rotary come circuit and connection and cut-off, dielectric can be divided into air, oil, SF
6sulfur hexafluoride gas etc.With SF
6sulphur hexafluoride performance is best, but SF
6sulfur hexafluoride gas is also one of six kinds of greenhouse gases of generally acknowledging in the world, and also can produce toxic gas when electric current cut-offs, and is manufacturing and is even also endangering in maintenance process that it arrives the life of people.With the apparatus insulated poor-performing of air as insulated switch, the equipment volume therefore produced is comparatively large, and floor space is large, and by the impact of environment for use, the factors of instability are more, and are not suitable for for outdoor environment.Ring main unit and switch cubicle are the primary power source power supply units using this this equipment combination, and primary power source to this equipment, is transported to user through isolating switch, vacuum interrupter or combined electrical apparatus through cable transmission.Earthed switch side ensures personal safety use for during maintenance, isolating switch also have upper isolation and lower isolation point, be equally all safeguard protection effect.Because this several switch has respective volume, total volume that combines is comparatively large, and the volume of whole equipment is increased, and manufacturing cost improves.Because equipment separate connection loop increases, total loop resistance is increased, and the electric energy that system consumes on the device is also without many.Isolating switch, the fracture of earthed switch in these dielectrics are apart from relatively large in addition, make the size of whole switch also become large.
Ring main unit is widely used in recent years, is because ring main unit structure is simple, reliable and safety, and maintenance capacity is very little, and operating cost is low.The ring main unit of current manufacture mainly contains gas-insulated, with SF
6sulfur hexafluoride gas is main, and some is SF
6the gas of sulphur hexafluoride and other gas and vapor permeation.The research and development of solid insulation ring main unit in recent years and application are obtaining the attention of each side, also have made some progress, be generally by coated for the rear solid dielectric insulations of combination such as vacuum interrupter, isolating switch, earthed switch, the main bus bar one that is packaged into, but the insulation of the fracture of isolating switch, earthed switch is still use air insulation.The length simultaneously operating the insulated tension pole of vacuum interrupter also has influence on the size of this product, makes physical dimension still larger like this.Therefore designed ring main unit size is comparatively large, particularly in the impact of short transverse.Ring main unit is generally used for avenue, residential quarter, and large size floor space is large, and particularly tall and big size becomes a kind of visual pollution, makes troubles to the trip of people.Fewer and feweri in spendable soil, the environmental consciousness of people is more and more stronger, so more needs us to provide the equipment for power transmission and distribution that a kind of volume is less.
Summary of the invention
Under ring main unit environment for use, take the deficiency that volume is comparatively large, the feature of environmental protection is poor in order to overcoming existing unit switch, the utility model provides a kind of effective minimizing and takies the good solid insulation unit switch of volume, the feature of environmental protection.
The utility model solves the technical scheme that its technical problem adopts:
A kind of solid insulation unit switch, comprise vacuum interrupter, isolating switch and earthed switch, described vacuum interrupter, isolating switch and earthed switch adopt solid insulating material to be coated in sealing pedestal, the fixed contact of described vacuum interrupter is connected with busbar, the moving contact side of described vacuum interrupter is provided with isolating switch, and described isolating switch is piston type isolating switch; Described isolating switch comprises movable feeler lever, the plunger shaft for described movable feeler lever knee-action is had in described sealing pedestal, sealing block is installed in the lower end of described movable feeler lever, conducting ring is installed in the bottom of described movable feeler lever, movable feeler lever on the upside of described conducting ring installs sealing ring, and the upper and lower both sides of outer wall of described conducting ring arrange quiet watchband-shaped contactor respectively; Isolation terminals are installed at the middle part of described plunger shaft, grounding connection seat is installed in the bottom of described plunger shaft, one end of moving contact Connection Block is positioned at the top of described plunger shaft, the described other end of moving contact Connection Block is connected with the moving contact of vacuum interrupter, and the distance between described moving contact Connection Block with isolation terminals is equal with the spacing of two quiet watchband-shaped contactors.
Further, the loop connecting end inwall of described moving contact Connection Block installs moving contact watchband-shaped contactor, and the moving contact of described vacuum interrupter slides up and down to be sleeved in described moving contact watchband-shaped contactor.
Further again, described plunger shaft is blind hole, has steam vent in the bottom of described plunger shaft.
Further, the upper end of described moving contact is connected with the lower end of disc type pull bar, on disc type pull bar top, contact pressure spring, lower spring cup and upper spring seat are housed, the lower end of described lower spring cup is fixedly connected with the upper end of described disc type pull bar, described lower spring cup is set with described contact pressure spring outward, the upper end of described lower spring cup is connected with described upper spring seat, and the upper end of contact pressure spring withstands on described upper spring seat; Described upper spring seat have a symmetrical aperture bearing pin is housed and be conditioned cover gear in adjustment trepanning, an elongated hole is arranged at described lower spring cup top, and upper spring seat and bearing pin are arranged in lower spring cup elongated hole movably; Be fixed in adjustment seat in the cannelure that left block and right block are contained in upper spring seat, shackle rod is fixedly connected with adjustment seat, and the upper end of described shackle rod is the motion end linked with operating mechanism.
The outer face sealing shroud of described disc type pull bar is contained in the inner ring of leather cup, and the outer ring sealing of described leather cup is arranged in the interrupter of described framework.
Described shackle rod is threaded with described adjustment seat, and the shackle rod on the top of described adjustment seat overlaps loading nut.
The beneficial effects of the utility model are mainly manifested in: adopt solid insulation, devise piston type isolating switch structure, greatly reduce the volume size of manufacturing equipment, environmentally safe or of low pollution, make to produce to reach current optimization with equipment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of solid insulation unit switch.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
With reference to Fig. 1, a kind of solid insulation unit switch, comprise vacuum interrupter 63, isolating switch and earthed switch, described vacuum interrupter 63, isolating switch and earthed switch adopt solid insulating material to be coated in sealing pedestal 66, the fixed contact 64 of described vacuum interrupter is connected with busbar 61, moving contact 65 side of described vacuum interrupter is provided with isolating switch, and described isolating switch is piston type isolating switch; Described isolating switch comprises movable feeler lever 53, the plunger shaft for described movable feeler lever knee-action is had in described sealing pedestal 66, sealing block 59 is installed in the lower end of described movable feeler lever 53, conducting ring 56 is installed in the bottom of described movable feeler lever 53, movable feeler lever on the upside of described conducting ring 56 installs sealing ring 54, and the upper and lower both sides of outer wall of described conducting ring 56 arrange quiet watchband-shaped contactor 57 respectively; Isolation terminals 55 are installed at the middle part of described plunger shaft, grounding connection seat 58 is installed in the bottom of described plunger shaft, one end of moving contact Connection Block 77 is positioned at the top of described plunger shaft, the other end of described moving contact Connection Block 77 is connected with the moving contact 65 of vacuum interrupter, and the distance between described moving contact Connection Block 77 with isolation terminals 55 is equal with the spacing of two quiet watchband-shaped contactors 57.
Further, the loop connecting end inwall of described moving contact Connection Block 77 installs moving contact watchband-shaped contactor 78, and the moving contact 65 of described vacuum interrupter slides up and down to be sleeved in described moving contact watchband-shaped contactor 78.
Further again, described plunger shaft is blind hole, has steam vent G in the bottom of described plunger shaft.
Further, the upper end of described moving contact 65 is connected with the lower end of disc type pull bar 67, on disc type pull bar 67 top, contact pressure spring 68, lower spring cup 69, upper spring seat 70 are housed, the lower end of described lower spring cup 69 is fixedly connected with the upper end of described disc type pull bar 67, the described contact pressure spring 68 of the outer suit of described lower spring cup 69, the upper end of described lower spring cup 69 is connected with described upper spring seat 70, and the upper end of contact pressure spring 68 withstands on described upper spring seat 70; Upper spring seat 70 having a symmetrical aperture bearing pin 76 is housed and being conditioned cover 74 keeps off in regulating sleeve 74 hole, and an elongated hole is arranged at described lower spring cup 69 top, and upper spring seat 69 and bearing pin 76 are arranged in lower spring cup 69 elongated hole movably; Be fixed in adjustment seat 74 in the cannelure that left block 71 and right block 75 are contained in upper spring seat 70, shackle rod 73 is fixedly connected with adjustment seat 74, and the upper end of described shackle rod 73 is the motion end linked with operating mechanism.
The outer face sealing shroud of described disc type pull bar 67 is contained in the inner ring of leather cup 78, and the outer ring sealing of described leather cup 78 is arranged in the interrupter of described framework.Described leather cup effectively can isolate device and the outside air of arc control device, the contact of isolated isolating switch electric-conductor and extraneous air, makes it the pollution not by steam in environment or dust, adds creepage distance and electric clearance simultaneously, improve dielectric strength, switch size can be made compacter.
Described shackle rod 73 is threaded with described adjustment seat 74, and the shackle rod 73 on the top of described adjustment seat 74 overlaps loading nut 72.
In the present embodiment, isolating switch and earthed switch and vacuum interrupter are arranged in parallel.Busbar 61, vacuum interrupter 63, screw 62, touch base connection 77, isolation terminals 55, grounding connection seat 58 are cast in switch base 66.On disc type pull bar 67, moving contact conducting position is sealed in switch base by the silicon rubber end face of dish type, and still can keep sealing when moving contact moves up and down.On disc type pull bar top, contact pressure spring 68, lower spring cup 69, upper spring seat 70 are housed, upper spring seat 70 have a symmetrical aperture bearing pin 76 is housed and be conditioned cover 74 and keep off in regulating sleeve 74 hole.One elongated hole is arranged at lower spring cup 69 top, and upper spring seat 70 and bearing pin 76 can move and carry out compression contacts compression spring 68 in lower spring cup 69 elongated hole.Be fixed in adjustment seat 74 in the cannelure that left block 71 and right block 75 are contained in upper spring seat 70, keep adjustment seat 74 also to rotate with connecting of upper spring seat 70.Shackle rod 73 is connected with adjustment seat 74 screw thread, and the hole on top is used for the operation that connection for transmission mechanism realizes vacuum interrupter.
Described shackle rod 73 is threaded with described adjustment seat 74, and the shackle rod 73 on the top of described adjustment seat 74 overlaps loading nut 72.When regulating the vacuum interrupter moving contact excess of stroke, first unclamp nut 72, rotate adjustment seat 74 and can change excess of stroke size, again nut 72 is tightened after meeting the requirements of size.
The operation of isolating switch drives movable feeler lever 53 to move up and down through mechanism driving axle to realize isolation and ground connection.Movable feeler lever 53 is equipped with sealing ring 54, conducting ring 56, sealing block 59 and watchband-shaped contactor 57.Shown position is that isolating switch closes a floodgate.Movable feeler lever 53 moves downward relevant position can complete isolating switch separating brake and earthed switch combined floodgate, and hole G is steam vent.
Claims (6)
1. a solid insulation unit switch, comprise vacuum interrupter, isolating switch and earthed switch, described vacuum interrupter, isolating switch and earthed switch adopt solid insulating material to be coated in sealing pedestal, the fixed contact of described vacuum interrupter is connected with busbar, it is characterized in that: the moving contact side of described vacuum interrupter is provided with isolating switch, described isolating switch is piston type isolating switch; Described isolating switch comprises movable feeler lever, the plunger shaft for described movable feeler lever knee-action is had in described sealing pedestal, sealing block is installed in the lower end of described movable feeler lever, conducting ring is installed in the bottom of described movable feeler lever, movable feeler lever on the upside of described conducting ring installs sealing ring, and the upper and lower both sides of outer wall of described conducting ring arrange quiet watchband-shaped contactor respectively; Isolation terminals are installed at the middle part of described plunger shaft, grounding connection seat is installed in the bottom of described plunger shaft, one end of moving contact Connection Block is positioned at the top of described plunger shaft, the described other end of moving contact Connection Block is connected with the moving contact of vacuum interrupter, and the distance between described moving contact Connection Block with isolation terminals is equal with the spacing of two quiet watchband-shaped contactors.
2. solid insulation unit switch as claimed in claim 1, it is characterized in that: the loop connecting end inwall of described moving contact Connection Block installs moving contact watchband-shaped contactor, and the moving contact of described vacuum interrupter slides up and down to be sleeved in described moving contact watchband-shaped contactor.
3. solid insulation unit switch as claimed in claim 1 or 2, is characterized in that: described plunger shaft is blind hole, has steam vent in the bottom of described plunger shaft.
4. solid insulation unit switch as claimed in claim 1 or 2, it is characterized in that: the upper end of described moving contact is connected with the lower end of disc type pull bar, on disc type pull bar top, contact pressure spring, lower spring cup and upper spring seat are housed, the lower end of described lower spring cup is fixedly connected with the upper end of described disc type pull bar, described lower spring cup is set with described contact pressure spring outward, the upper end of described lower spring cup is connected with described upper spring seat, and the upper end of contact pressure spring withstands on described upper spring seat; Described upper spring seat have a symmetrical aperture bearing pin is housed and be conditioned cover gear in adjustment trepanning, an elongated hole is arranged at described lower spring cup top, and upper spring seat and bearing pin are arranged in lower spring cup elongated hole movably; Be fixed in adjustment seat in the cannelure that left block and right block are contained in upper spring seat, shackle rod is fixedly connected with adjustment seat, and the upper end of described shackle rod is the motion end linked with operating mechanism.
5. solid insulation unit switch as claimed in claim 4, is characterized in that: the outer face sealing shroud of described disc type pull bar is contained in the inner ring of leather cup, and the outer ring sealing of described leather cup is arranged in the interrupter of framework.
6. solid insulation unit switch as claimed in claim 4, is characterized in that: described shackle rod is threaded with described adjustment seat, the shackle rod on the top of described adjustment seat overlaps loading nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526278.8U CN204333611U (en) | 2014-09-12 | 2014-09-12 | Solid insulation unit switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526278.8U CN204333611U (en) | 2014-09-12 | 2014-09-12 | Solid insulation unit switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204333611U true CN204333611U (en) | 2015-05-13 |
Family
ID=53169929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420526278.8U Expired - Lifetime CN204333611U (en) | 2014-09-12 | 2014-09-12 | Solid insulation unit switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204333611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644581A (en) * | 2021-09-06 | 2021-11-12 | 浙江聚弘凯电气有限公司 | Ring main unit of environment-friendly gas-insulated combined electrical apparatus |
-
2014
- 2014-09-12 CN CN201420526278.8U patent/CN204333611U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644581A (en) * | 2021-09-06 | 2021-11-12 | 浙江聚弘凯电气有限公司 | Ring main unit of environment-friendly gas-insulated combined electrical apparatus |
| CN113644581B (en) * | 2021-09-06 | 2023-07-14 | 浙江聚弘凯电气有限公司 | Environment-friendly gas-insulated combined electrical apparatus ring main unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |