CN210607094U - Insulating positioning plate for vacuum arc-extinguishing chamber - Google Patents
Insulating positioning plate for vacuum arc-extinguishing chamber Download PDFInfo
- Publication number
- CN210607094U CN210607094U CN201921781893.2U CN201921781893U CN210607094U CN 210607094 U CN210607094 U CN 210607094U CN 201921781893 U CN201921781893 U CN 201921781893U CN 210607094 U CN210607094 U CN 210607094U
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- China
- Prior art keywords
- insulating
- positioning plate
- extinguishing chamber
- vacuum arc
- claw
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- 239000000463 material Substances 0.000 abstract description 5
- 210000000078 claw Anatomy 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 13
- 230000015556 catabolic process Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
Images
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses an insulating locating plate for vacuum interrupter, insulating locating plate links to each other with the insulating curb plate of circuit breaker body, and the location to vacuum interrupter is realized at the three claw type boss of the central round hole department evenly distributed with the contact of vacuum interrupter. The utility model has the advantages that: the surface partial discharge generated by the insulating medium at one end and the electrode at the other end can be effectively reduced, the material cost can be saved, and the heat dissipation space can be enlarged.
Description
Technical Field
The utility model relates to a vacuum arc extinguishing circuit breaker, especially a vacuum interrupter is with insulating locating plate.
Background
Most of insulating materials of electrical equipment are organic materials, and some bubbles or other impurities are left in the manufacturing or using process, so that the electric field intensity of some areas is higher than the average electric field intensity in the inner part or the surface of an insulator, the breakdown field intensity of some areas is lower than the average breakdown field intensity, therefore, the discharge firstly occurs in some areas, and the insulating property is still maintained in other areas, so that the partial discharge is formed.
The partial discharge can cause serious damage to the insulation of electrical equipment, mainly manifested in that the insulation material is damaged by local heating generated by discharge, impact of charged ions and other factors, and the continuous development of the partial discharge can gradually expand the deterioration and damage of the insulation, finally shorten the normal service life of the insulation, reduce the short-time insulation strength, and even possibly cause the whole insulation breakdown.
The vacuum arc-extinguishing chamber is a main element for the ring main unit to be cut off, and the vacuum arc-extinguishing chamber needs to meet the cut-off requirement in application and also needs to ensure the insulation requirement.
In order to meet the installation requirements of the vacuum arc-extinguishing chamber, an insulating positioning plate is usually additionally arranged at the position of a shielding cylinder of the arc-extinguishing chamber.
The contact surface of the existing insulation positioning plate and the shielding cylinder is a round surface, and experiments show that a discharge space is formed and surface partial discharge is generated because one end of the insulation positioning plate is an insulation medium and the other end of the insulation positioning plate is an electrode.
SUMMERY OF THE UTILITY MODEL
In order to overcome among the prior art partial discharge between insulating locating plate and the explosion chamber, avoid simultaneously generating heat, electrified ion striking etc. to insulating material's harm because of the part that partial discharge produced, the utility model provides an insulating locating plate of three-jaw location reduces and leads the area of contact of electric end, reduces partial discharge, increases heat dissipation, reduction material cost, avoids vibrating simultaneously, realizes good location.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an insulating locating plate for vacuum interrupter links to each other with the insulating curb plate of circuit breaker body, insulating locating plate, with the three claw type boss of the central round hole department evenly distributed of vacuum interrupter contact, realize the location to vacuum interrupter.
In the insulating positioning plate for the vacuum arc-extinguishing chamber, the end surfaces of the three claw-shaped bosses of the insulating positioning plate are arc-shaped, and the end surfaces and the connecting arc surfaces between the bosses have the same central axis.
The insulating positioning plate for the vacuum arc-extinguishing chamber is characterized in that the arc length of the end surfaces of three claw-shaped bosses of the insulating positioning plate is smaller than that of the root part.
Foretell vacuum interrupter is with insulating locating plate, three claw type boss of insulating locating plate all is equipped with the radius angle.
The beneficial effects of the utility model are that, compared with the prior art, the utility model has the advantages that: can effectively reduce the local discharge amount, reduce the material consumption and is beneficial to heat dissipation.
Drawings
Fig. 1 is a schematic view of the application of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
In the figure: 1. 1-1 parts of an insulation positioning plate, 1-2 parts of a square shaft, 1-3 parts of a round hole, 1-4 parts of a claw-shaped boss and an arc;
2. a circuit breaker left insulating side plate;
3. 3-1 parts of a vacuum arc extinguish chamber, and a vacuum arc extinguish chamber shielding cylinder;
4. and a right insulating side plate of the circuit breaker.
Detailed Description
As shown in the attached drawing 1, the utility model relates to an insulating locating plate for vacuum interrupter, insulating locating plate 1 is the plate structure, and this plate structure both sides respectively have a pair of square axle 1-1, through the shaft hole cooperation with circuit breaker left side insulating side board 2, the square hole on the circuit breaker right side insulating side board 4 links to each other, insulating locating plate 1 center is equipped with round hole 1-2, links to each other with vacuum interrupter shielding section of thick bamboo 3-1, realizes the good location of vacuum interrupter 3, avoids the vibration simultaneously.
As shown in the attached drawing 2, the insulating positioning plate 1 has three claw-shaped bosses 1-3 uniformly distributed at the central circular hole contacted with the vacuum arc-extinguishing chamber 3, so as to realize the positioning of the vacuum arc-extinguishing chamber 3, and meanwhile, the claw-shaped structure has less material consumption and saves the material cost.
The end faces of the three claw-shaped bosses 1-3 are arc-shaped 1-4, so that in order to ensure accurate and reliable positioning, the arc has the same central axis with a shielding cylinder of the vacuum arc-extinguishing chamber and a connecting arc between the bosses, the contact area with the shielding cylinder is reduced, and the reduction of local discharge capacity is facilitated.
The arc length of the end faces of the three claw-shaped bosses of the insulation positioning plate is smaller than that of the root portion, and meanwhile, the three claw-shaped bosses are provided with fillets, so that bubbles possibly remaining in the manufacturing process of organic materials and air gaps possibly existing at the edges of insulation media are reduced, and phenomena of ionization, partial discharge and the like of the air gaps or the bubbles are further reduced.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that the equivalent changes made in the claims of the present invention, such as equivalent products with similar processes and similar structures, are also included in the scope of the present invention. Therefore, the protection scope of the present invention should be defined by the appended claims.
Claims (4)
1. The insulating positioning plate for the vacuum arc-extinguishing chamber is characterized in that the insulating positioning plate (1) is provided with three claw-shaped bosses (1-3) serving as positioning structures, and the three claw-shaped bosses are uniformly distributed on a central circular hole (1-2) in contact with the vacuum arc-extinguishing chamber (3).
2. The insulating positioning plate for the vacuum arc-extinguishing chamber according to claim 1, characterized in that the end surfaces of the three claw-shaped bosses (1-3) are arcs (1-4), and the arcs (1-4) and the shielding cylinder (3-1) of the vacuum arc-extinguishing chamber have the same central axis.
3. The insulating positioning plate for the vacuum arc-extinguishing chamber according to claim 1, characterized in that the arc length of the end surface of the three claw-shaped bosses (1-3) of the insulating positioning plate (1) is smaller than the arc length of the root.
4. The insulating and positioning plate for the vacuum interrupter according to claim 1, characterized in that the three claw-shaped bosses (1-3) of the insulating and positioning plate (1) are provided with rounded corners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921781893.2U CN210607094U (en) | 2019-10-23 | 2019-10-23 | Insulating positioning plate for vacuum arc-extinguishing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921781893.2U CN210607094U (en) | 2019-10-23 | 2019-10-23 | Insulating positioning plate for vacuum arc-extinguishing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210607094U true CN210607094U (en) | 2020-05-22 |
Family
ID=70697637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921781893.2U Active CN210607094U (en) | 2019-10-23 | 2019-10-23 | Insulating positioning plate for vacuum arc-extinguishing chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210607094U (en) |
-
2019
- 2019-10-23 CN CN201921781893.2U patent/CN210607094U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 410000, Room 401-16, Building 2, Xincheng Science and Technology Park, No. 588 Yuelu West Avenue, Dongfanghong Street, Xiangjiang New District, Changsha City, Hunan Province Patentee after: Hezong Technology Co.,Ltd. Country or region after: China Address before: 100085 room 1211, block D, Jiahua building, No.9, Shangdi 3rd Street, Haidian District, Beijing Patentee before: BEIJING HEZONG SCIENCE & TECHNOLOGY Co.,Ltd. Country or region before: China |