CN208240419U - A kind of insulator and gas-insulated switch with high dielectric constant film - Google Patents
A kind of insulator and gas-insulated switch with high dielectric constant film Download PDFInfo
- Publication number
- CN208240419U CN208240419U CN201820817463.0U CN201820817463U CN208240419U CN 208240419 U CN208240419 U CN 208240419U CN 201820817463 U CN201820817463 U CN 201820817463U CN 208240419 U CN208240419 U CN 208240419U
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- China
- Prior art keywords
- insulator
- dielectric constant
- high dielectric
- constant film
- cavity
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- 239000012212 insulator Substances 0.000 title claims abstract description 89
- 239000004020 conductor Substances 0.000 claims abstract description 50
- 238000009413 insulation Methods 0.000 claims abstract description 15
- 229910018503 SF6 Inorganic materials 0.000 claims description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 4
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 4
- 230000005684 electric field Effects 0.000 abstract description 21
- 230000015556 catabolic process Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- VMQPMGHYRISRHO-UHFFFAOYSA-N benzvalene Chemical group C1=CC2C3C1C32 VMQPMGHYRISRHO-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Insulators (AREA)
Abstract
The utility model relates to Electric Power Equipment Insulation component technology fields, disclose a kind of insulator and gas-insulated switch with high dielectric constant film, insulator with high dielectric constant film includes insulator body and the central conductor that is connected in insulator body, there is the cavity for filling insulating gas, one end of central conductor passes through cavity in insulator body；High dielectric constant film is coated on the intersection of the inner surface of cavity, central conductor and insulating gas.High dielectric constant film is coated on intersection by inner surface and central conductor and insulating gas in cavity, the inner surface and the electric field normal component on the intersection of central conductor and insulating gas for being effectively reduced cavity, to avoid the insulator with high dielectric constant film in the electric field strength of the inner surface and central conductor of cavity and the intersection of insulating gas, there are concentration of local, and then avoid the insulation fault of the insulator generation flashover breakdown with high dielectric constant film.
Description
Technical field
The utility model relates to Electric Power Equipment Insulation component technology fields, thin with high dielectric constant more particularly to one kind
The insulator and gas-insulated switch of film.
Background technique
Currently, the disc insulator of gas-insulated switch (GIS, Gas Insulated Switchgear) is set due to electric power
Standby running environment is harsh, its insulation fault is caused to take place frequently.Therefore, in order to improve the insulation performance of disc insulator, existing basin
The material of formula insulator generally uses the homogeneous material that aluminum oxide is filled in epoxy resin substrate, and relative dielectric constant is about
It is 6.
But during implementing the utility model, at least there are the following problems in the prior art for utility model people discovery:
Since existing disc insulator is in the irregular structure of insulator body and central conductor and the intersection of insulating gas, lead
The electric field strength the phenomenon that there are concentration of local for causing intersection, flashover breakdown is easy to happen so as to cause existing disc insulator
Insulation fault.
Utility model content
The purpose of the utility model is to provide a kind of insulator and gas-insulated switch with high dielectric constant film, with
It solves existing disc insulator and there is part in insulator body and central conductor and the electric field strength of the intersection of insulating gas
The insulation fault of flashover breakdown occurs to avoid insulator for the technical issues of concentration.
In order to solve the above-mentioned technical problem, the utility model provides a kind of insulator with high dielectric constant film, packet
The central conductor for including insulator body and being connected in insulator body has for filling insulation in the insulator body
One end of the cavity of gas, the central conductor passes through the cavity；The inner surface of the cavity, the central conductor and institute
It states and is coated with high dielectric constant film on the intersection of insulating gas.
Preferably, the relative dielectric constant of the high dielectric constant film is 8-30.
Preferably, the insulator with high dielectric constant film is disc insulator, the benzvalene form insulation
The indented central portion of son is the cavity.
Preferably, the insulator body is equipped with the first through hole being connected to the cavity, and the center is led
The other end of body passes through the first through hole and is connected in the first through hole.
Preferably, the other end of the central conductor and the first through hole are interference fitted.
In order to solve identical technical problem, the utility model also provides a kind of gas-insulated switch, including shell, insulation
Gas and the above-mentioned insulator with high dielectric constant film；The insulator with high dielectric constant film is set to institute
It states in shell, and the outer edge of the insulator with high dielectric constant film is connected on the inner wall of the shell；It is described
Insulating gas is filled in the cavity.
Preferably, the insulating gas is sulfur hexafluoride.
The utility model provides a kind of insulator with high dielectric constant film, including insulator body and is connected to
Central conductor in insulator body has the cavity for filling insulating gas, one end of central conductor in insulator body
Across cavity；High dielectric constant film is coated on the intersection of the inner surface of cavity, central conductor and insulating gas.Due to
In AC field, the electric field normal direction component size of the intersection of the inner surface of cavity, central conductor and insulating gas and hand over
Dielectric constant at boundary is in inverse ratio, therefore by coating on the inner surface and the intersection of central conductor and insulating gas in cavity
High dielectric constant film, the inner surface for being effectively reduced cavity and the electric field normal direction on the intersection of central conductor and insulating gas
Component, to optimize the surrounding electric field of the insulator with high dielectric constant film, to avoid with high dielectric constant film
There are concentration of local in the electric field strength of the inner surface and central conductor of cavity and the intersection of insulating gas for insulator, and then keep away
Exempt from the insulation fault that flashover breakdown occurs for the insulator with high dielectric constant film.Further, since high dielectric constant should be had
The insulator of film optimizes its surrounding electric field, therefore is conducive to reduce the occupied area of power equipment, to realize power equipment
Miniaturization with it is integrated.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the insulator with high dielectric constant film in the utility model embodiment；
Fig. 2 is the structure of another angle of the insulator with high dielectric constant film in the utility model embodiment
Schematic diagram；
Fig. 3 is the structural schematic diagram of the insulator body in the utility model embodiment；
Fig. 4 is that the insulator with high dielectric constant film in the utility model embodiment, insulating gas and gas are exhausted
The assembling schematic diagram of the shell of edge switch.
Wherein, 1, insulator body；11, cavity；12, first through hole；13, grounding electrode；2, central conductor；21, high pressure
Electrode；3, high dielectric constant film；
100, with the insulator of high dielectric constant film；200, insulating gas；300, shell.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the explanation of the utility model, the description in the orientation such as upper, lower, left, right, front and rear is limited both for Fig. 1
Fixed, when the modes of emplacement of the insulator with high dielectric constant film changes, corresponding orientation description is also by root
Change according to the change of modes of emplacement, this will not be repeated here for the utility model.
In conjunction with shown in Fig. 1 to Fig. 4, a kind of insulator with high dielectric constant film of the preferred embodiment in the utility model
100, including insulator body 1 and the central conductor being connected in insulator body 12, has in the insulator body 1 and use
The cavity 11 is passed through in one end of the cavity 11 of filling insulating gas 200, the central conductor 2；The interior table of the cavity 11
High dielectric constant film 3 is coated on the intersection in face, the central conductor 2 and the insulating gas 200.
In the utility model embodiment, due in AC field, the inner surface of the cavity 11, the central conductor
2 and the electric field normal direction component size of intersection and the dielectric constant of intersection of the insulating gas 200 be in inverse ratio, therefore it is logical
It crosses and coats the Gao Jie on the intersection of the inner surface of the cavity 11 and the central conductor 2 and the insulating gas 200
Dielectric constant film 3 is effectively reduced the inner surface of the cavity 11 and the friendship of the central conductor 2 and the insulating gas 200
Electric field normal component at boundary, to optimize the surrounding electric field of the insulator 100 with high dielectric constant film, to keep away
Exempt from the insulator 100 with high dielectric constant film in inner surface and the central conductor 2 of the cavity 11 and described
There are concentration of local for the electric field strength of the intersection of insulating gas 200, and then avoid described exhausted with high dielectric constant film
The insulation fault of the generation flashover breakdown of edge 100.Further, since should be optimized with the insulator 100 of high dielectric constant film
Its surrounding electric field, therefore be conducive to reduce the occupied area of power equipment, with realize the miniaturization of power equipment with it is integrated.
In the utility model embodiment, in order to advanced optimize the insulator 100 for having high dielectric constant film
Surrounding electric field, to further avoid the insulator 100 with high dielectric constant film in the inner surface of the cavity 11
There are concentration of local with the electric field strength of the central conductor 2 and the intersection of the insulating gas 200, it is preferable that this implementation
The relative dielectric constant of the high dielectric constant film 100 in example is 8-30.
Specifically, the insulator 100 with high dielectric constant film in this implementation is disc insulator, the basin
The indented central portion of formula insulator is the cavity 11.
In conjunction with shown in Fig. 1 to Fig. 4, in order to make structure rationalization so that the central conductor 2 be securely connected to it is described absolutely
On edge ontology 1, it is preferable that it is logical that the insulator body 1 in the present embodiment is equipped with first be connected to the cavity 11
Hole 12, the other end of the central conductor 2 pass through the first through hole 12 and are connected in the first through hole 12.
In the utility model embodiment, for the ease of realizing between the central conductor 2 and the first through hole 12
Connection, it is preferable that the other end of the central conductor 2 in the present embodiment and the first through hole 12 are interference fitted.Certainly, exist
In the utility model embodiment, the central conductor 2 can also be attached with the first through hole 12 using other way, such as
Welding, bonding and be threadedly coupled etc., only need to meet be conducive to improve the central conductor 2 connect with the first through hole it is firm
Property and convenience, do not do more repeat herein.
In conjunction with shown in Fig. 1 to Fig. 4, under the premise of ensuring that the insulator body 1 can support central conductor 2,
It is described normal with high dielectric to meet in order to enable the insulator body 1 to separate the central conductor 2 and grounding electrode 13
The grounding requirement of the insulator 100 of film is counted, the central conductor 2 in the present embodiment is equipped with high-field electrode 21, described exhausted
The grounding electrode 13 connecting for the shell 300 with gas-insulated switch is extended on the outer edge of edge ontology 1.By described
Insulator body 1 separates the high-field electrode 21 and the grounding electrode 13, to have high dielectric constant film described in satisfaction
The grounding requirement of insulator 100.
As shown in figure 4, the utility model also provides a kind of gas-insulated switch in order to solve identical technical problem, packet
Include shell 300, insulating gas 200 and the above-mentioned insulator 100 with high dielectric constant film；It is described normal with high dielectric
The insulator 100 of number film is set in the shell, and the outer edge of the insulator 100 with high dielectric constant film connects
It connects on the inner wall of the shell 300；The insulating gas 200 is filled in the cavity 11.
Specifically, the grounding electrode 13 in the present embodiment is connected on the shell 300.
In the utility model embodiment, the type of the insulating gas 200 can be arranged according to actual operation requirements, such as
Sulfur hexafluoride, seven fluorine isobutyronitriles and tetrafluoromethane etc..Preferably, in order to improve the insulation performance of the gas-insulated switch, institute
Stating insulating gas 200 is sulfur hexafluoride.
To sum up, the utility model provides a kind of insulator and gas-insulated switch with high dielectric constant film, has
The insulator 100 of high dielectric constant film includes insulator body 1 and the central conductor 2 being connected in insulator body 1, absolutely
1 has the cavity 11 for filling insulating gas 200 on edge ontology, and one end of central conductor 2 passes through cavity 11；Cavity 11
High dielectric constant film 3 is coated on the intersection of inner surface, central conductor 2 and insulating gas 200.Due in AC field
In, the electric field normal direction component size and intersection of the intersection of the inner surface of cavity 11, central conductor 2 and insulating gas 200
Dielectric constant be in inverse ratio, therefore by being applied on the inner surface and the intersection of central conductor 2 and insulating gas 200 in cavity 11
High dielectric constant film 3 is covered, is effectively reduced on the inner surface of cavity 11 and the intersection of central conductor 2 and insulating gas 200
Electric field normal component, the surrounding electric field of the insulator 100 with high dielectric constant film is optimized, to avoid with Gao Jie
Electric-field strength of the insulator 100 of dielectric constant film in the inner surface and central conductor 2 of cavity 11 and the intersection of insulating gas 200
There are concentration of local for degree, and then avoid the insulation fault of the generation flashover breakdown of insulator 100 with high dielectric constant film.This
Outside, since the insulator 100 with high dielectric constant film optimizes its surrounding electric field, be conducive to reduce power equipment
Occupied area, with realize the miniaturization of power equipment with it is integrated.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (8)
1. a kind of insulator with high dielectric constant film, which is characterized in that including insulator body and be connected to insulation
Central conductor on sub- ontology has the cavity for filling insulating gas in the insulator body, the central conductor
One end passes through the cavity；It is coated on the intersection of the inner surface of the cavity, the central conductor and the insulating gas
There is high dielectric constant film.
2. having the insulator of high dielectric constant film as described in claim 1, which is characterized in that the high dielectric constant is thin
The relative dielectric constant of film is 8-30.
3. having the insulator of high dielectric constant film as described in claim 1, which is characterized in that described normal with high dielectric
The insulator of number film is disc insulator, and the indented central portion of the disc insulator is the cavity.
4. the insulator as described in any one of claims 1-3 with high dielectric constant film, which is characterized in that described exhausted
Edge ontology is equipped with the first through hole being connected to the cavity, and the other end of the central conductor passes through the first through hole simultaneously
It is connected in the first through hole.
5. as claimed in claim 4 have high dielectric constant film insulator, which is characterized in that the central conductor it is another
One end and the first through hole are interference fitted.
6. the insulator as described in any one of claims 1-3 with high dielectric constant film, which is characterized in that in described
It entreats conductor to be equipped with high-field electrode, is outward extended on the outer edge of the insulator body for outer with gas-insulated switch
The grounding electrode of shell connection.
7. a kind of gas-insulated switch, which is characterized in that including shell, insulating gas and such as any one of claim 1-6 institute
The insulator with high dielectric constant film stated；The insulator with high dielectric constant film is set in the shell,
And the outer edge of the insulator with high dielectric constant film is connected on the inner wall of the shell；The insulating gas is filled out
It fills in the cavity.
8. gas-insulated switch as claimed in claim 7, which is characterized in that the insulating gas is sulfur hexafluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820817463.0U CN208240419U (en) | 2018-05-29 | 2018-05-29 | A kind of insulator and gas-insulated switch with high dielectric constant film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820817463.0U CN208240419U (en) | 2018-05-29 | 2018-05-29 | A kind of insulator and gas-insulated switch with high dielectric constant film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208240419U true CN208240419U (en) | 2018-12-14 |
Family
ID=64575081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820817463.0U Expired - Fee Related CN208240419U (en) | 2018-05-29 | 2018-05-29 | A kind of insulator and gas-insulated switch with high dielectric constant film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208240419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717888A (en) * | 2018-05-29 | 2018-10-30 | 南方电网科学研究院有限责任公司 | A kind of insulator and preparation method thereof with high dielectric constant film |
-
2018
- 2018-05-29 CN CN201820817463.0U patent/CN208240419U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717888A (en) * | 2018-05-29 | 2018-10-30 | 南方电网科学研究院有限责任公司 | A kind of insulator and preparation method thereof with high dielectric constant film |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 |