CN208298638U - A kind of insulator of the high resistance to flashover voltage in surface - Google Patents
A kind of insulator of the high resistance to flashover voltage in surface Download PDFInfo
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- CN208298638U CN208298638U CN201820733637.5U CN201820733637U CN208298638U CN 208298638 U CN208298638 U CN 208298638U CN 201820733637 U CN201820733637 U CN 201820733637U CN 208298638 U CN208298638 U CN 208298638U
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- insulator
- high resistance
- flashover
- flashover voltage
- voltage
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Abstract
The utility model discloses a kind of insulators of the high resistance to flashover voltage in surface, including insulator body and cathode block, wherein, the insulator body is segmented variable section structure, including top, up-small and down-big top cone, cylinder and up-small and down-big lower part cone and pedestal；The cathode block bottom is Equalized voltage ring construction, inner sidewall and insulator body angle at 45 °；It is shielding barrel structure at the top of the insulator body, is in sunk structure, cathode block is embedded to wherein, is placed in inside insulator body.The utility model is intended to provide a kind of insulator of high resistance to flashover voltage in surface, and the resistance to flashover voltage that insulator surface is improved from design is horizontal, solves the problems, such as to be easy to happen destructive dielectric surface flashover when close to rated high voltage upper limit operation；The optimization designed simultaneously by structure, so that outer dimension is obviously reduced, and the usage amount of raw material is saved, to reduce costs under the premise of guaranteeing that good machinability and good resistance to flashover are horizontal.
Description
Technical field
Insulator of the utility model more particularly to a kind of high resistance to flashover voltage in surface.
Background technique
Existing vacuum high-pressure seal uses fairly simple outline profile form in design, there is table
The problem of resistance to flashover voltage in face is lower, is easy to happen destructive dielectric surface flashover when close to rated high voltage upper limit operation, thus
So that failure functionally occurs for product, great loss is brought；Simultaneously there is also outer dimension is larger, raw materials consumption compared with
Greatly, the problem of higher cost.
Utility model content
The purpose of this utility model is to provide a kind of insulators of the high resistance to flashover voltage in surface, improve from design absolutely
The resistance to flashover voltage in edge sublist face is horizontal, and it is big to solve volume existing for the insulator arrangement of the high resistance to flashover voltage in existing surface,
And the problem of being easy to happen destructive dielectric surface flashover when close to rated high voltage upper limit operation；It is designed simultaneously by structure excellent
Change, so that outer dimension is obviously reduced under the premise of guaranteeing that good machinability and good resistance to flashover are horizontal, saves
The usage amount of raw material, to reduce costs.
To achieve the goals above, the utility model uses following technical scheme:
A kind of insulator of the high resistance to flashover voltage in surface, including insulator body and cathode block, wherein
The insulator body be segmented variable section structure, including top, up-small and down-big top cone, cylinder and on
Small lower big lower part cone and pedestal；
The cathode block bottom is Equalized voltage ring construction, inner sidewall and insulator body angle at 45 °；
It is shielding barrel structure at the top of the insulator body, is in sunk structure, cathode block is embedded to wherein, is placed in insulator sheet
Internal portion；
The insulator body cylinder and pedestal are equipped with conical cavity.
Further, the radius of the Equalized voltage ring construction is R5-R20.
Further, the height of the shielding cylinder is 10-40mm.
Further, the depth of the sunk structure is 10-20mm.
Further, the insulator whole height < 180mm of the high resistance to flashover voltage in the surface.
Further, the flange in the bottom end face of the insulator body (1) is coated with conductive coating.
Further, the cone angle of the up-small and down-big top cone and the up-small and down-big lower part cone is 45 °.
Compared with prior art, the utility model has the advantage that
1. the occurrence probability of destructive dielectric surface flashover is decreased obviously.
2. the whole high-voltage isulation performance of insulator is obviously improved.
3. difficulty of processing is moderate, processing cost rises without apparent.
4. size effectively reduces, the cost of raw material declines to a great extent.
5. therefore the overall dimensions of Related product are also reduced, the application range of product has been widened.
6. improving the durability and reliability of Related product.
Detailed description of the invention
Fig. 1 is the general structure schematic diagram of the utility model.
Fig. 2 is the sectional view of the utility model.
In figure: 1, insulator body；2, cathode block.
Specific embodiment
Further describe the utility model combined with specific embodiments below, but examples are merely exemplary, it is not right
The scope of the utility model constitutes any restrictions.It will be understood by those skilled in the art that without departing from the utility model
Under spirit and scope can details to technical solutions of the utility model and form modify or replace, but these modifications and replace
It changes and each falls in the protection scope of the utility model.
As shown in Figs. 1-2, the insulator of the high resistance to flashover voltage in a kind of surface, including insulator body 1 and cathode block 2,
In, the insulator body 1 be segmented variable section structure, including top, up-small and down-big top cone, cylinder and it is upper it is small under
Big lower part cone and pedestal；2 bottom of cathode block is Equalized voltage ring construction, inner sidewall and the angle at 45 ° of insulator body 1,
Field distribution is improved, the resistance to flashover voltage in surface is improved；It is shielding barrel structure at the top of the insulator body 1, effectively prevent
The adverse effect of secondary electron, while top is in sunk structure, cathode block 2 is embedded to wherein, is placed in inside insulator body 1,
Field distribution is improved, to improve resistance to flashover voltage；1 cylinder of insulator body and pedestal are equipped with conical cavity；Institute
The radius for stating Equalized voltage ring construction is R5-R20；The height of the shielding cylinder is 10-40mm；The depth of the sunk structure is 10-
20mm；The insulator whole height < 180mm of the high resistance to flashover voltage in the surface；The flange in the bottom end of the insulator body 1
Face is coated with conductive coating；The cone angle of the up-small and down-big top cone and the up-small and down-big lower part cone is 45 °, is mentioned
The high resistance to flashover voltage in surface；1 surface of insulator body ensure that whole workability without groove.
Claims (7)
1. a kind of insulator of the high resistance to flashover voltage in surface, which is characterized in that including insulator body (1) and cathode block (2),
In,
The insulator body (1) be segmented variable section structure, including top, up-small and down-big top cone, cylinder and on
Small lower big lower part cone and pedestal；
Cathode block (2) bottom is Equalized voltage ring construction, inner sidewall and insulator body (1) angle at 45 °；
It is shielding barrel structure at the top of the insulator body (1), while is in sunk structure, cathode block (2) is embedded to wherein, is placed in absolutely
Edge ontology (1) is internal；
Insulator body (1) cylinder and pedestal are equipped with conical cavity.
2. a kind of insulator of the high resistance to flashover voltage in surface according to claim 1, which is characterized in that the grading ring knot
The radius of structure is R5-R20.
3. a kind of insulator of the high resistance to flashover voltage in surface according to claim 1, which is characterized in that the shielding cylinder
Height is 10-40mm.
4. a kind of insulator of the high resistance to flashover voltage in surface according to claim 1, which is characterized in that the sunk structure
Depth be 10-20mm.
5. a kind of insulator of the high resistance to flashover voltage in surface according to claim 1, which is characterized in that the surface height is resistance to
The insulator whole height < 180mm of flashover voltage.
6. a kind of insulator of the high resistance to flashover voltage in surface according to claim 1, which is characterized in that the insulator sheet
The flange in the bottom end face of body (1) is coated with conductive coating.
7. a kind of insulator of the high resistance to flashover voltage in surface according to claim 1, which is characterized in that described up-small and down-big
Top cone and the cone angle of the up-small and down-big lower part cone be 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820733637.5U CN208298638U (en) | 2018-05-17 | 2018-05-17 | A kind of insulator of the high resistance to flashover voltage in surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820733637.5U CN208298638U (en) | 2018-05-17 | 2018-05-17 | A kind of insulator of the high resistance to flashover voltage in surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208298638U true CN208298638U (en) | 2018-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820733637.5U Active CN208298638U (en) | 2018-05-17 | 2018-05-17 | A kind of insulator of the high resistance to flashover voltage in surface |
Country Status (1)
| Country | Link |
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| CN (1) | CN208298638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111161930A (en) * | 2020-01-03 | 2020-05-15 | 西北核技术研究院 | Vacuum insulator with composite structure and preparation method thereof |
-
2018
- 2018-05-17 CN CN201820733637.5U patent/CN208298638U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111161930A (en) * | 2020-01-03 | 2020-05-15 | 西北核技术研究院 | Vacuum insulator with composite structure and preparation method thereof |
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