CN221079734U - Basin-type insulator device of high strength - Google Patents

Basin-type insulator device of high strength Download PDF

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Publication number
CN221079734U
CN221079734U CN202322460054.3U CN202322460054U CN221079734U CN 221079734 U CN221079734 U CN 221079734U CN 202322460054 U CN202322460054 U CN 202322460054U CN 221079734 U CN221079734 U CN 221079734U
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CN
China
Prior art keywords
basin
high strength
epoxy resin
flange
boss
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CN202322460054.3U
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Chinese (zh)
Inventor
高洋
陈宇
刘东阳
赵俊卿
许猛
何平
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New Northeast Electric Group High Voltage Switch Co ltd
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New Northeast Electric Group High Voltage Switch Co ltd
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Abstract

The utility model belongs to the technical field of high-voltage switch equipment, and particularly relates to a high-strength basin-type insulator device, which comprises an epoxy resin casting piece and a central insert embedded in the epoxy resin casting piece, wherein annular insulating bosses are arranged on the periphery of the central insert and on the end face of the epoxy resin casting piece, reinforcing bosses are further arranged on the central part of the epoxy resin casting piece and are respectively connected with the annular insulating bosses, the height positions of the top surfaces of the annular insulating bosses are higher than the height positions of the top surfaces of the reinforcing bosses, a flange is arranged on the periphery of the epoxy resin casting piece, a grounding shielding spring is arranged in the epoxy resin casting piece, and the grounding shielding spring is connected with the flange. The utility model has simple structure, high mechanical strength and insulating property, strong current passing capability and high reliability, and can be applied to high-voltage power system switch equipment.

Description

Basin-type insulator device of high strength
Technical Field
The utility model belongs to the technical field of high-voltage switch equipment, and particularly relates to a high-strength basin-type insulator device.
Background
GIS is an important device for guaranteeing the safety of a power system. In high switching devices, the basin-type insulator plays an important role in separating the air chamber, supporting the conductors and insulating. The vast majority of insulating mediums in the GIS at present adopt SF6 gas, however, because SF6 gas belongs to greenhouse effect gas, the insulating mediums have high global warming coefficients (GWP). Therefore, it is a necessary trend to select an environmentally friendly gas with performance comparable to that of SF6 gas to replace SF 6. However, the environment-friendly gas inevitably brings about the increase of the pressure value of the gas in the gas chamber, which puts higher requirements on the basin-type insulator device, and the mechanical strength of the basin-type insulator device needs to be improved. In the GIS using SF6 gas as an insulating medium at present, the mechanical strength and the insulating performance of the basin-type insulator device are relatively low. Therefore, when designing a high-strength basin-type insulator apparatus, not only the mechanical properties of the basin-type insulator apparatus but also the insulation properties of the basin-type insulator apparatus are considered.
When the environment-friendly gas is adopted to replace SF6 as an insulating medium, the gas pressure in the air chamber needs to be improved to meet the insulating performance requirement, and the defect that the mechanical strength and the insulating performance of the existing basin-type insulator are relatively low is overcome. The basin-type insulator is provided with the reinforcing boss at the center part of the end face of the epoxy resin casting part, and the annular insulating boss is convexly arranged on the outer circumferences of the 3 center inserts and the epoxy resin casting surface, so that the mechanical strength of the epoxy resin casting part is improved; the interface agent with special materials is smeared on the central insert in the casting process, so that the bonding strength between the central insert and the epoxy resin casting is better; the grounding shielding spring is arranged in the epoxy resin casting part, so that the electric field intensity at the three junction areas at the tail part of the device is effectively reduced, and the insulation performance of the basin-type insulator device is improved. In the reference document, "the outer ring of the basin-type insulator is connected with the two-side ground potential shells" (actually, the two-side ground potential shells are connected through the additional metal conducting plates), the epoxy resin casting part is in direct extrusion contact with the two-side ground potential shells, the outer ring of the epoxy resin casting part is directly exposed to the external environment, and the factors can lead to erosion of the basin-type insulator, and the through-flow performance, the mechanical performance and the service life of the basin-type insulator are low. The basin-type insulator device is provided with the metal flange, and is connected with the ground potential shells on two sides in an extrusion mode through the flange, so that electrical communication can be ensured without a metal conducting plate; when in assembly, the metal flange bears the fastening force of the bolt, so that the insulator is prevented from being broken due to the fact that the insulator bears too high fastening force; the epoxy resin casting part is not directly exposed in the environment due to the existence of the metal flange, so that the damage of the electrical property of the insulating part is prevented, and the defect problem faced by the basin-type insulator device in the document is solved.
Disclosure of utility model
In order to solve the problems in the background technology, the utility model is realized by the following technical scheme:
The utility model provides a high strength basin-type insulator device, includes epoxy casting and inlays the center inserts of locating in the epoxy casting, and center inserts periphery and all are equipped with annular insulating boss on the epoxy casting terminal surface, and the center part of epoxy casting terminal surface still is equipped with strengthens the boss, strengthens the boss and links to each other with each annular insulating boss respectively, and epoxy casting periphery is equipped with the flange, and epoxy casting is inside to be equipped with ground shield spring, and ground shield spring links to each other with the flange.
The number of the center inserts is three, and the centers of the three center inserts are arranged in an equilateral triangle with the center of the device.
And a sealing groove is formed in the edge of the end face of the epoxy resin casting part.
The top surface height position of each annular insulating boss is higher than the top surface height position of the reinforcing boss.
The height of the single-side bulge of the reinforcing boss is 1/10-1/5 of the thickness of the epoxy resin casting part.
The diameter of the reinforcing boss is 1/2-3/5 of the diameter of the flange.
The center insert is made of high-conductivity aluminum alloy materials.
The central insert is coated with a material interface agent.
The diameter of each central insert is 3/20-7/40 of the diameter of the flange.
The distance from the center of each center insert to the center of the device is 8/21-10/21 of the radius of the flange.
The utility model provides a high-strength basin-type insulator device, which has the following beneficial effects:
1. The basin-type insulator is used for high-voltage switch equipment, wherein the basin-type insulator is provided with the reinforcing boss, so that the mechanical property of the basin-type insulator can be remarkably improved, and the reliability of the high-voltage switch equipment is improved.
2. The central insert is made of high-conductivity materials, so that the through-flow capacity can be guaranteed, meanwhile, the interface agent is smeared on the central insert in the casting process, and the mechanical property of the basin-type insulator is further improved.
3. The grounding shielding spring can effectively reduce the electric field intensity at the three junction areas at the tail part of the device and improve the insulation performance of the basin-type insulator device.
4. The basin-type insulator device is used for installing the sealing groove of the sealing ring, and can ensure good sealing performance.
5. The basin-type insulator edge surface is optimally designed to obtain an optimal shape, and has excellent insulating performance.
Drawings
Fig. 1 is a schematic view of a high strength basin-type insulator apparatus according to the present utility model.
Fig. 2 is a cross-sectional view of a high strength basin-type insulator apparatus in accordance with the present utility model.
In the figure: 1. 2 parts of epoxy resin casting parts, 3 parts of central inserts, 3 parts of sealing grooves, 4 parts of reinforcing bosses, 5 parts of grounding shielding springs, 6 parts of flanges, 7 parts of annular insulating bosses.
Detailed Description
As shown in fig. 1-2, the basin-type insulator device provided by the present utility model includes: epoxy resin casting 1, center inserts 2, seal groove 3, reinforcing boss 4, ground shield spring 5, flange 6 and annular insulating boss 7.
The device comprises an epoxy resin casting part 1 and three center inserts 2 embedded in the epoxy resin casting part 1, wherein the centers of the three center inserts 2 are arranged in an equilateral triangle shape with the center of the device, the distance from the center of each center insert to the center of the device is 8/21-10/21 of the radius of the flange, and the diameter of each center insert is 3/20-7/40 of the diameter of the flange; the periphery of the center insert 2 is provided with annular insulating bosses 7 in a protruding mode on the end face of the epoxy resin casting piece 1, so that the mechanical strength of the epoxy resin casting piece 1 is improved; the central part of the end face of the epoxy resin casting part 1 is also provided with a reinforcing boss 4, the height of a single-side bulge of the reinforcing boss 4 is 1/10-1/5 of the thickness of the epoxy resin casting part 1, the diameter of the reinforcing boss 4 is 1/2-3/5 of the diameter of the epoxy resin casting part 1, and the reinforcing boss 4 can obviously improve the mechanical property of the basin-type insulator; the reinforcing bosses 4 are respectively connected with the annular insulating bosses 7, and the top surface height positions of the annular insulating bosses 7 are higher than the top surface height positions of the reinforcing bosses 4; the outer periphery of the epoxy resin casting part 1 is provided with a flange 6, the basin-type insulator device is connected with the ground potential shells on two sides through the flange 6 in an extrusion mode, electrical communication can be guaranteed without a metal conducting plate, the metal flange 6 bears bolt fastening force during assembly, the insulator is prevented from being broken due to the fact that the insulator is too high in fastening, the epoxy resin casting part 1 cannot be directly exposed to the environment due to the fact that the metal flange 6 exists, and damage to electrical performance of the insulator is prevented; the inside ground connection shielding spring 5 that is equipped with of epoxy casting 1, ground connection shielding spring 5 links to each other with flange 6, and the electric field intensity of the three intersection regions department in device afterbody can effectively be reduced to ground connection shielding spring 5, has improved the insulating properties of basin insulator device.
And a sealing groove 3 is further formed in the edge of the end face of the epoxy resin casting part 1 and is used for installing a sealing ring so as to ensure good sealing performance.
The center insert 2 is made of high-conductivity aluminum alloy, so that the current passing capability can be ensured; meanwhile, the special material interface agent is smeared on the center insert 2 in the casting process, so that the bonding strength of the center insert 2 and the epoxy resin casting 1 is better, and the mechanical property of the basin-type insulator is further improved.

Claims (10)

1. The utility model provides a high strength basin-type insulator device, a serial communication port, including epoxy casting (1) and inlay central inserts (2) of locating in epoxy casting (1), central inserts (2) periphery and all be equipped with annular insulating boss (7) on epoxy casting (1) terminal surface, the central part of epoxy casting (1) terminal surface still is equipped with strengthens boss (4), strengthen boss (4) and link to each annular insulating boss (7) respectively, epoxy casting (1) periphery is equipped with flange (6), epoxy casting (1) inside is equipped with ground connection shielding spring (5), ground connection shielding spring (5) link to each other with flange (6).
2. A high strength basin insulator apparatus in accordance with claim 1, characterized in that the number of center inserts (2) is three, the centers of the three center inserts (2) being arranged in an equilateral triangle with the center of the apparatus.
3. A high strength basin insulator according to claim 1, characterized in that the end edges of the epoxy resin casting (1) are provided with sealing grooves (3).
4. A high strength basin insulator according to claim 1, characterized in that the top surface of each annular insulating boss (7) is higher than the top surface of the reinforcing boss (4).
5. A high strength basin-type insulator device in accordance with claim 1, characterized in that the single side protrusion height of the reinforcing boss (4) is 1/10-1/5 of the thickness of the epoxy resin casting (1).
6. A high strength basin insulator according to claim 1, characterized in that the diameter of the reinforcing boss (4) is 1/2-3/5 of the diameter of the flange (6).
7. A high strength basin insulator according to claim 1, characterized in that the central insert (2) is made of a high conductivity aluminium alloy.
8. A high strength basin insulator according to claim 1, characterized in that the center insert (2) is coated with a material interface agent.
9. A high strength basin insulator according to claim 1, characterized in that the diameter of each center insert piece (2) is 3/20-7/40 of the diameter of the flange (6).
10. A high strength basin insulator device according to claim 1, characterized in that the distance from the centre of each centre insert (2) to the centre of the device is 8/21-10/21 of the radius of the flange (6).
CN202322460054.3U 2023-09-11 2023-09-11 Basin-type insulator device of high strength Active CN221079734U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322460054.3U CN221079734U (en) 2023-09-11 2023-09-11 Basin-type insulator device of high strength

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322460054.3U CN221079734U (en) 2023-09-11 2023-09-11 Basin-type insulator device of high strength

Publications (1)

Publication Number Publication Date
CN221079734U true CN221079734U (en) 2024-06-04

Family

ID=91258362

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322460054.3U Active CN221079734U (en) 2023-09-11 2023-09-11 Basin-type insulator device of high strength

Country Status (1)

Country Link
CN (1) CN221079734U (en)

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