CN203644655U - High pressure direct pneumatic SF6 load switch device - Google Patents
High pressure direct pneumatic SF6 load switch device Download PDFInfo
- Publication number
- CN203644655U CN203644655U CN201320824965.3U CN201320824965U CN203644655U CN 203644655 U CN203644655 U CN 203644655U CN 201320824965 U CN201320824965 U CN 201320824965U CN 203644655 U CN203644655 U CN 203644655U
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- contact
- arc
- moving contact
- lever
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- Arc-Extinguishing Devices That Are Switches (AREA)
- Circuit Breakers (AREA)
Abstract
The utility model relates to a high pressure direct pneumatic SF6 load switch device. The high pressure direct pneumatic SF6 load switch device comprises a static contact, an arc ignition needle, a moving contact assembly, an arc extinguishing cover, a switch box, a contact clamp assembly, a connecting rod, a crank arm, a shielding ring and a bus bar, the static contact is fixedly arranged at the upper end of the arc extinguishing cover, the arc ignition needle is arranged in the static contact, the moving contact assembly is arranged in the arc extinguishing cover, the moving contact assembly and the inner wall of the arc extinguishing cover are contacted to form a closed cavity, and the arc extinguishing cover and the switch box are fixedly connected. By adopting the above structure, a sealing ring of the moving contact assembly and the inner wall of the arc extinguishing cover are contacted to form the closed cavity, when the load switch is switched off, a mechanism drives the crank arm to rotate, the moving contact assembly is driven to move downwardly via the connecting rod, SF6 gas in the closed cavity is compressed, the compressed SF6 gas injects out from a nozzle at an ultra-high speed, and electric arc between the arc ignition needle and an arc contact is extinguished.
Description
Technical field
The utility model relates to a kind of high voltage direct action pneumatic type SF
6load switching unit, relates in particular to a kind of high voltage direct action pneumatic type SF being assemblied in Cubicle Gas-Insulated Switchgear
6load switching unit.
Background technology
SF
6, Chinese name: sulphur hexafluoride, came across for 20 beginnings of the century, it is the gas that sulphur forms while burning in the gas of fluorine, SF
6gas, with its good insulation property and arc extinction performance and aphlogistic characteristic, is progressively used for electric equipment as New insulated medium.At present, Cubicle Gas-Insulated Switchgear, all adopts rotation disconnecting link formula SF
6load switching unit, electric arc is elongated cooling arc extinguishing by the electromagnetic force that when on/off switch, electric current produces, and is limited to the intrinsic characteristic of magnetic blow-out formula arc quenching principle itself, this type of SF
6load switching unit arc extinguishing is limited in one's ability, can not meet preferably distribution demand, China Patent No.: 2006201597928, and disclosed straight action pneumatic type switch, complex structure, high pressure weak effect, arc extinction performance is not good.
Summary of the invention
The purpose of this utility model is to provide the high voltage direct action pneumatic type SF that a kind of arc extinguishing ability is strong
6load switching unit, in the time of switch separating brake, the SF in compression arc-extinguish chamber
6gas, makes SF
6gas is blown out electric arc with high speed by spout.
For realizing above object, the utility model by the following technical solutions: a kind of high voltage direct action pneumatic type SF
6load switching unit, comprises fixed contact, striking pin, moving contact component, arc-extinguish chamber, fixed contact is fixedly mounted on arc-extinguish chamber upper end, is provided with striking pin in fixed contact, and moving contact component is located at arc-extinguish chamber, and moving contact component contacts with arc-extinguish chamber inwall and forms enclosed cavity, it is characterized in that: also comprise switch enclosure, contact clip assembly, connecting rod, connecting lever, shading ring, busbar, described arc-extinguish chamber is fixedly connected with switch enclosure, and described moving contact component comprises moving contact, arcing contact, nozzle, lever and the collar, described arcing contact is located between moving contact and nozzle, arcing contact is fixed on moving contact, nozzle is fixedly connected with moving contact, lever one end is fixedly connected with moving contact, and the collar is stuck in moving contact outer ring, and sealing ring is enclosed within collar outer ring, lever lower end is positioned at switch enclosure, connecting rod two ends respectively with lever, connecting lever is rotationally connected, and described contact clip assembly is placed on lever external diameter, with lever external diameter Elastic Contact, busbar is fixedly connected with contact clip assembly, grounding contact folder and grounding contact are fixed on the below of busbar, and curved busbar is fixedly connected with busbar, and shading ring is fixed on curved busbar.
Described contact clip assembly comprises contact folder, spring base, stage clip, and spring base is fixed on stage clip on contact folder.
Described fixed contact openend outer ring is with extension spring.
Described arc-extinguish chamber is arranged with grading shield outside top, for internal field evenly.
The arc-extinguish chamber that described moving contact component is corresponding is arranged with grading ring outward, for internal field evenly.
The utility model adopts above structure, and the sealing ring on moving contact component forms enclosed cavity with the contact of arc-extinguish chamber inwall, and in the time of on-load switch separating brake, mechanism drives connecting lever rotation, drives moving contact component to move downward by connecting rod, makes the SF in closed cavity
6gas is compressed, the SF of compression
6gas sprays from spout with high speed, by striking pin with the arc extinction between arcing contact.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further elaborated.
Fig. 1 is a kind of high voltage direct action pneumatic type of the utility model SF
6the structural representation of load switching unit;
Fig. 2 is a kind of high voltage direct action pneumatic type of the utility model SF
6the assembling schematic diagram of load switching unit;
Fig. 3 is a kind of high voltage direct action pneumatic type of the utility model SF
6the moving contact component structural representation of load switching unit.
Embodiment
Refer to shown in Fig. 1～3,
A kind of high voltage direct action pneumatic type SF
6load switching unit, in fixed contact 2, be provided with striking pin 3, moving contact component 7 is located at arc-extinguish chamber 5, moving contact component 7 contacts with arc-extinguish chamber 5 inwalls and forms enclosed cavity, it is characterized in that: also comprise switch enclosure 8, contact clip assembly 12, connecting rod 10, connecting lever 9, shading ring 11, busbar 127, described arc-extinguish chamber 5 is fixedly connected with switch enclosure 8, described moving contact component 7 comprises moving contact 73, arcing contact 72, nozzle 71, lever 76 and the collar 74, described arcing contact 72 is located between moving contact 73 and nozzle 71, arcing contact 72 is fixed on moving contact 73, nozzle 71 is fixed with arcing contact 72 buckles, lever 76 one end are fixedly connected with moving contact 73, the collar 74 is stuck in moving contact 73 outer rings, sealing ring 75 is enclosed within the collar 74 outer rings, lever 76 lower ends are positioned at switch enclosure 8, connecting rod 10 two ends respectively with lever 76, connecting lever 9 is rotationally connected, described contact clip assembly 12 is placed on lever 76 external diameters, with lever 76 external diameter Elastic Contact, busbar 127 is fixedly connected with contact clip assembly 12, grounding contact folder 124 and grounding contact 125 are fixed on the below of busbar 127, curved busbar 126 is fixedly connected with busbar 127, shading ring 11 is fixed on curved busbar 126.
Described contact clip assembly 12 comprises contact folder 123, spring base 121, stage clip 122, and spring base 121 is fixed on stage clip 122 on contact folder 123.
Described fixed contact 2 openend outer rings are with extension spring 4.
Described arc-extinguish chamber is arranged with grading shield 1 outside 5 tops, for internal field evenly.
The outer grading ring 6 that is arranged with of arc-extinguish chamber 5 of described moving contact component 7 correspondences, for internal field evenly.
The utility model comprises fixed contact 2, striking pin 3, moving contact component 7, arc-extinguish chamber 5, arc-extinguish chamber 5 inwall contacts form enclosed cavity, arc-extinguish chamber 5 is fixedly connected with switch enclosure 8, fixed contact 2 is fixed on the top in arc-extinguish chamber 5, striking pin 3 is located in fixed contact 2, extension spring 4 shroud rings are in fixed contact 2 openend outer rings, grading shield 1 is located at arc-extinguish chamber 5 tops, the coated fixed contact 2 of arc-extinguish chamber 5, grading ring 6 is located at the peripheral corresponding contact assembly 7 in arc-extinguish chamber 5 middle parts, contact clip assembly 12 is assemblied in switch enclosure 8, be fixedly connected with switch enclosure 8, shading ring 11 is fixed on curved busbar 126, connecting lever 9 is placed in switch enclosure 8, moving contact component 7 is connected and forms enclosed cavity with arc-extinguish chamber 5 with connecting lever 9 by connecting rod 10, mechanism drives connecting lever 9 to rotate, drive moving contact component 7 to complete on/off switch action and arc extinguishing by connecting rod 10.
Described moving contact component 7 comprises moving contact 73, arcing contact 72, nozzle 71, lever 76 and the collar 74, described arcing contact 72 is fixed on moving contact 73, lever 76 is riveted with moving contact 73, nozzle 71 is located at moving contact 73 tops, the collar 74 is stuck in moving contact 73 peripheries, and sealing ring 75 is enclosed within the collar 74 peripheries.
Described contact clip assembly 12 comprises contact folder 123, spring base 121, stage clip 122, contact folder 123 is fixed on busbar 127 tops by nut 128, spring base 121 is fixed on stage clip 122 on contact folder 123, grounding contact folder 124 is fixed on the below of busbar 127 with grounding contact 125, curved busbar 126 is fixedly connected with busbar 127.
Under "on" position, the tensile force after described moving contact component 7 contacts with fixed contact 2, is provided by extension spring 4.
Closing operation: mechanism drives connecting lever 9 to turn clockwise, and drives moving contact component 7 to move upward by connecting rod 10, and arcing contact 72 first contacts with striking pin 3, and moving contact 73 inserts in fixed contact 2 subsequently, completes feed motion.
Sub-switching operation: mechanism drives connecting lever 9 to be rotated counterclockwise, and drives moving contact component 7 to move downward by connecting rod 10, makes the SF in closed cavity
6gas is compressed, and moving contact 73 separates at first with fixed contact 2, and arcing contact 72 separates and produce electric arc with striking pin 3 subsequently, and along with the motion of moving contact component 7, the air pressure in closed cavity increases, SF at a high speed
6air-flow sprays from spout, by striking pin with the arc extinction between arcing contact.
Claims (5)
1. a high voltage direct action pneumatic type SF
6load switching unit, comprises fixed contact, striking pin, moving contact component, arc-extinguish chamber, fixed contact is fixedly mounted on arc-extinguish chamber upper end, is provided with striking pin in fixed contact, and moving contact component is located at arc-extinguish chamber, and moving contact component contacts with arc-extinguish chamber inwall and forms enclosed cavity, it is characterized in that: also comprise switch enclosure, contact clip assembly, connecting rod, connecting lever, shading ring, busbar, described arc-extinguish chamber is fixedly connected with switch enclosure, and described moving contact component comprises moving contact, arcing contact, nozzle, lever and the collar, described arcing contact is located between moving contact and nozzle, arcing contact is fixed on moving contact, nozzle is fixedly connected with moving contact, lever one end is fixedly connected with moving contact, and the collar is stuck in moving contact outer ring, and sealing ring is enclosed within collar outer ring, lever lower end is positioned at switch enclosure, connecting rod two ends respectively with lever, connecting lever is rotationally connected, and described contact clip assembly is placed on lever external diameter, with lever external diameter Elastic Contact, busbar is fixedly connected with contact clip assembly, grounding contact folder and grounding contact are fixed on the below of busbar, and curved busbar is fixedly connected with busbar, and shading ring is fixed on curved busbar.
2. a kind of high voltage direct action pneumatic type SF according to claim 1
6load switching unit, is characterized in that: described contact clip assembly comprises contact folder, spring base, stage clip, and spring base is fixed on stage clip on contact folder.
3. a kind of high voltage direct action pneumatic type SF according to claim 1
6load switching unit, is characterized in that: described fixed contact openend outer ring is with extension spring.
4. a kind of high voltage direct action pneumatic type SF according to claim 1
6load switching unit, is characterized in that: described arc-extinguish chamber is arranged with grading shield outside top.
5. a kind of high voltage direct action pneumatic type SF according to claim 1
6load switching unit, is characterized in that: the arc-extinguish chamber that described moving contact component is corresponding is arranged with grading ring outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320824965.3U CN203644655U (en) | 2013-12-13 | 2013-12-13 | High pressure direct pneumatic SF6 load switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320824965.3U CN203644655U (en) | 2013-12-13 | 2013-12-13 | High pressure direct pneumatic SF6 load switch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203644655U true CN203644655U (en) | 2014-06-11 |
Family
ID=50875881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320824965.3U Expired - Fee Related CN203644655U (en) | 2013-12-13 | 2013-12-13 | High pressure direct pneumatic SF6 load switch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203644655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646820A (en) * | 2013-12-13 | 2014-03-19 | 上海灏赛电器有限公司 | High-voltage directly-operated air-compressing type SF6 load switch device |
-
2013
- 2013-12-13 CN CN201320824965.3U patent/CN203644655U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646820A (en) * | 2013-12-13 | 2014-03-19 | 上海灏赛电器有限公司 | High-voltage directly-operated air-compressing type SF6 load switch device |
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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 |
Granted publication date: 20140611 Termination date: 20151213 |
|
| EXPY | Termination of patent right or utility model |