CN218102475U - Glue impregnated paper capacitive type wall bushing with buffer structure - Google Patents
Glue impregnated paper capacitive type wall bushing with buffer structure Download PDFInfo
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- CN218102475U CN218102475U CN202123313270.2U CN202123313270U CN218102475U CN 218102475 U CN218102475 U CN 218102475U CN 202123313270 U CN202123313270 U CN 202123313270U CN 218102475 U CN218102475 U CN 218102475U
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- capacitor core
- wall bushing
- flange
- type wall
- end flange
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Abstract
The utility model discloses a glue-impregnated paper capacitive wall bushing with a buffer structure, which comprises a wiring terminal, an end flange pressing plate, an end flange, a silicon rubber umbrella skirt, an intermediate flange, a measuring terminal, a capacitor core, a coiled pipe/rod, a buffer layer and an intermediate flange pressing plate, wherein the intermediate flange and the intermediate flange pressing plate are connected through bolts to clamp and fix the capacitor core; the end flange is connected with two ends of the capacitor core body through the surface threads of the coiled pipe/rod; the end flange and the middle flange are mounted on the capacitor core through double-component epoxy resin glue; a sleeve measuring terminal is arranged on the middle flange; the silicon rubber umbrella skirt is directly cast on the surface of the capacitor core through high-temperature vulcanization molding by a mold; the end flange pressing plate is connected with the end flange through a bolt; the wiring terminal is connected with two ends of the coiled pipe/rod through bolts. The utility model discloses there is not oily, air-free, non-maintaining, compact structure, operation safe and reliable, can effectively avoid sleeve pipe electric capacity core fracture problem.
Description
Technical Field
The utility model relates to a glue and soak paper electric capacity type wall bushing especially relates to a structure of glue and soak paper electric capacity type wall bushing electric capacity core, belongs to electrical equipment technical field.
Background
Wall bushings are commonly used in power distribution units and high voltage electrical equipment in power stations and substations where high voltage conductors are routed through grounded partitions, walls or housings of electrical equipment to support the conductive portion for insulation from ground or housing. At present, most of the commonly used wall bushing of the power system adopts an oil-filled porcelain outer sleeve wall bushing, and a small part of the commonly used wall bushing adopts a dry wall bushing which is assisted by gas medium for insulation. The oil-filled ceramic outer sleeve wall bushing has the dangers of oil leakage, ceramic outer sleeve explosion and the like, and the operation of a power grid, the environment and the safety of operating personnel are influenced. The dry-type wall bushing with the auxiliary insulation of the gas medium has the dangers of gas leakage, explosion and the like due to high operation working pressure. In addition, when the dry-type wall bushing with the auxiliary insulation of the gas medium operates in an environment with large temperature difference between day and night, the capacitor core and the coiled pipe are easy to crack under the long-term action of expansion with heat and contraction with cold due to different expansion coefficients, so that the bushing is damaged in an insulation manner, and potential safety hazards are brought to power operation. Whether the oil-filled ceramic-sheathed wall bushing or the gas medium-assisted insulated dry-type wall bushing has a large workload of later maintenance, the use requirements of miniaturization, oil-free, maintenance-free (less) and high reliability on high-voltage electrical products provided by the power department can not be met.
Disclosure of Invention
The utility model aims to solve the technical problem that to the defect that prior art exists, provide a compact structure, do not have oil, air-free, non-maintaining, operation safe and reliable's glue and soak paper electric capacity type wall bushing, its core structure can effectively solve because of the great technical problem that causes wall bushing core to ftracture round the clock the difference in temperature greatly.
In order to solve the technical problem, the utility model provides a glue-impregnated paper capacitive wall bushing with a buffer structure, which comprises a wiring terminal, an end flange pressing plate, an end flange, a silicon rubber umbrella skirt, a middle flange, a measuring terminal, a capacitor core, a coiled pipe/rod, a buffer layer and a middle flange pressing plate, wherein the capacitor core is clamped and fixed by the middle flange and the middle flange pressing plate through bolt connection; the end flange is connected with two ends of the capacitor core body through surface threads of the coiled pipe/rod; the end flange and the middle flange are mounted on the capacitor core through double-component epoxy resin glue; the middle flange is provided with a sleeve measuring terminal; the silicon rubber umbrella skirt is directly cast on the surface of the capacitor core through high-temperature vulcanization molding by a mold; the end flange pressing plate is connected with the end flange through a bolt; the wiring terminal is connected with two ends of the coiled pipe/rod through bolts.
The capacitor core body is formed by winding insulating crepe paper and a capacitor electrode plate on a coiled pipe/rod, and performing vacuum drying and epoxy resin vacuum impregnation and curing.
The outer surface of the rolled pipe/rod is subjected to interface treatment such as knurling and sand blasting, and then a buffer layer is cast through a mould for high-temperature forming.
The inner surface of the buffer layer is bonded with the coiled tube/rod through a plasma treatment process, and the outer surface of the buffer layer is provided with a concave pit and a convex anti-skid structure and is bonded with the capacitor core through an epoxy resin adhesive.
The buffer layer is made of a high-temperature resistant and low-temperature resistant elastic semiconductive material.
The capacitor plate of the capacitor core is made of conductive or semiconductive materials.
And moisture-proof paint is coated on the surface of the capacitor core body.
The end flange, the middle flange and the outer side of the lap joint of the silicon rubber umbrella skirt are sealed by weather-proof sealant.
The silicon rubber umbrella skirt and the capacitor core 7 are bonded by silane coupling agent after being processed by plasma.
The measuring terminal is provided with a cover, and the cover is provided with a knurling and sand blasting anti-skidding structure.
Has the advantages that: the utility model discloses compact structure, do not have oil, air-free, non-maintaining, operation safe and reliable can avoid like product to move in the great environment of the difference in temperature round the clock, the problem of sleeve pipe electric capacity core fracture appears, has effectively protected sleeve pipe and operation personnel's safety.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the section A of the present invention;
FIG. 3 is a schematic structural view of the intermediate flange of the present invention;
fig. 4 is a schematic cross-sectional view of the end flange pressing plate of the present invention;
fig. 5 is a schematic cross-sectional view of the end flange of the present invention.
In the figure: 1. a wiring terminal; 2. an end flange pressing plate; 3. an end flange; 4. a silicon rubber umbrella skirt; 5. a middle flange; 6. a measurement terminal; 7. a capacitor core; 8. rolling the tube/rod; 9. a buffer layer; 10. and (5) pressing a middle flange.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-5, the utility model provides a glue soaks paper electric capacity type wall bushing with buffer structure, including binding post 1, tip flange clamp plate 2, tip flange 3, silicon rubber full skirt 4, intermediate flange 5, measuring terminal 6, electric capacity core 7, roll up a tub/pole 8, buffer layer 9 and intermediate flange clamp plate 10, intermediate flange 5 and intermediate flange clamp plate 10 clamp electric capacity core 7 fixedly through bolted connection; the end flange 3 is connected with the two ends of the capacitor core body 7 through surface threads of the coiled pipe/rod 8; the end flange 3 and the middle flange 5 are mounted on the capacitor core 7 through double-component epoxy resin glue; a sleeve measuring terminal 6 is arranged on the middle flange 5; the silicon rubber umbrella skirt 4 is directly cast on the surface of the capacitor core 7 through high-temperature vulcanization molding by a mold; the end flange pressing plate 2 is connected with the end flange 3 through bolts; the wiring terminal 1 is connected with two ends of the coiled pipe/rod 8 through bolts.
The capacitor core body 7 is formed by winding insulating crepe paper and capacitor plates on a coiled pipe/rod 8, and performing vacuum drying and epoxy resin vacuum impregnation curing.
The outer surface of the rolled pipe/rod 8 is subjected to knurling and sand blasting interface treatment, and then the buffer layer 9 is cast through a mold for high-temperature molding.
The inner surface of the buffer layer 9 is bonded with the coiled tube/rod 8 through an interfacial agent, and the outer surface of the buffer layer is provided with a concave pit and a convex anti-slip structure and is bonded with the capacitor core 7 through a plasma treatment process.
The buffer layer 9 is made of a semiconductive material with high and low temperature resistance and elasticity, such as semiconductive fluorine rubber and semiconductive silicon rubber.
The capacitor plates of the capacitor core 7 are made of conductive or semiconductive materials, such as aluminum foil, semiconductive paper, and the like.
And moisture-proof paint is coated on the surface of the capacitor core body 7.
The outer sides of the lap joints of the end flanges 3, the middle flange 5 and the silicon rubber umbrella skirt 4 are sealed by weather-proof sealant.
The silicon rubber umbrella skirt 4 and the capacitor core 7 are bonded by a silane coupling agent after being subjected to plasma treatment.
The measuring terminal 6 is provided with a cover, and the cover is provided with an anti-skid structure with knurls and sand blasting.
When in use, the sleeve pipe of the utility model is connected with the high-voltage lead wires at the indoor and outdoor sides to form an indoor-outdoor wall bushing.
The utility model discloses compact structure, do not have oil, air-free, non-maintaining, operation safe and reliable can avoid like product to move in the great environment of the difference in temperature round the clock, the problem of sleeve pipe electric capacity core fracture appears, has effectively protected sleeve pipe and operation personnel's safety.
The above embodiments of the present invention are merely examples, not the only ones, and all changes within the scope of the present invention or the same range of the present invention are all surrounded by the present invention.
Claims (10)
1. The utility model provides a glue and soak paper electric capacity type wall bushing with buffer structure which characterized in that: the capacitor core body clamp comprises a wiring terminal (1), an end flange pressing plate (2), an end flange (3), a silicon rubber umbrella skirt (4), a middle flange (5), a measuring terminal (6), a capacitor core body (7), a coiled pipe/rod (8), a buffer layer (9) and a middle flange pressing plate (10), wherein the middle flange (5) and the middle flange pressing plate (10) are connected through bolts to clamp and fix the capacitor core body (7); the end flange (3) is connected with two ends of the capacitor core body (7) through surface threads of the coiled pipe/rod (8); the end flange (3) and the middle flange (5) are mounted on the capacitor core (7) through double-component epoxy resin glue; a sleeve measuring terminal (6) is arranged on the middle flange (5); the silicon rubber umbrella skirt (4) is directly poured on the surface of the capacitor core (7) through high-temperature vulcanization molding by a mold; the end flange pressing plate (2) is connected with the end flange (3) through bolts; the wiring terminal (1) is connected with two ends of the coiled pipe/rod (8) through bolts.
2. The capacitive type wall bushing with buffering structure of claim 1, wherein: the capacitor core body (7) is formed by winding insulating crepe paper and a capacitor pole plate on a coiled pipe/rod (8), and performing vacuum drying and epoxy resin vacuum impregnation curing.
3. The capacitive type wall bushing with cushion structure of claim 2, wherein: the outer surface of the rolled pipe/rod (8) is subjected to interface treatment such as knurling and sand blasting, and then a buffer layer (9) is cast through a mould for high-temperature forming.
4. The capacitive type wall bushing with cushion structure of claim 3, wherein: the inner surface of the buffer layer (9) is bonded with the coiled tube/rod (8) through a plasma treatment process, and the outer surface of the buffer layer is provided with a concave pit and a convex anti-skid structure and is bonded with the capacitor core (7) through an epoxy resin adhesive.
5. The capacitive type wall bushing with buffering structure of claim 3, wherein: the buffer layer (9) is made of a high-low temperature resistant and elastic semi-conductive material.
6. The capacitive type wall bushing with cushion structure of claim 1, wherein: the capacitor plate of the capacitor core body (7) is made of conductive or semiconductive materials.
7. The capacitive type wall bushing with buffering structure of claim 1, wherein: and moisture-proof paint is coated on the surface of the capacitor core body (7).
8. The capacitive type wall bushing with buffering structure of claim 1, wherein: the end flange (3), the middle flange (5) and the outer side of the lap joint of the silicon rubber umbrella skirt (4) are sealed through weather-proof sealant.
9. The capacitive type wall bushing with buffering structure of claim 1, wherein: the silicon rubber umbrella skirt (4) and the capacitor core (7) are bonded by a silane coupling agent after being subjected to plasma treatment.
10. The capacitive type wall bushing with buffering structure of any one of claims 1 to 9, wherein: the measuring terminal (6) is provided with a cover, and the cover is provided with a knurling and sand blasting anti-skidding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123313270.2U CN218102475U (en) | 2021-12-27 | 2021-12-27 | Glue impregnated paper capacitive type wall bushing with buffer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123313270.2U CN218102475U (en) | 2021-12-27 | 2021-12-27 | Glue impregnated paper capacitive type wall bushing with buffer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218102475U true CN218102475U (en) | 2022-12-20 |
Family
ID=84444323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123313270.2U Active CN218102475U (en) | 2021-12-27 | 2021-12-27 | Glue impregnated paper capacitive type wall bushing with buffer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218102475U (en) |
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2021
- 2021-12-27 CN CN202123313270.2U patent/CN218102475U/en active Active
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