CN203243013U - Epoxy resin bushing - Google Patents
Epoxy resin bushing Download PDFInfo
- Publication number
- CN203243013U CN203243013U CN 201320254602 CN201320254602U CN203243013U CN 203243013 U CN203243013 U CN 203243013U CN 201320254602 CN201320254602 CN 201320254602 CN 201320254602 U CN201320254602 U CN 201320254602U CN 203243013 U CN203243013 U CN 203243013U
- Authority
- CN
- China
- Prior art keywords
- epoxy resin
- bushing
- metallic conductor
- metal conductor
- resin bushing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides an epoxy resin bushing. The bushing overcomes problems that a metal conductor and epoxy resin are molded by casting to form an epoxy resin bushing with slit and gas leakage due to different coefficients of expansion. The bushing comprises a metal conductor, fixing mold inserts and a shield ring in connection with the metal conductor. The metal conductor, the fixing mold insert and the shield ring are molded as a whole by epoxy resin. The surface of the metal conductor is coated with a conductive material layer. The bushing is mainly used for installing and linking electric power equipment such as electric power cables, mutual inductors and lightning arresters.
Description
Technical field
The utility model provides a kind of epoxy resin bushing, is mainly used in C-GIS switch cubicle, gas-filled type ring main unit and the oily transformer, is used for installing and being connected the power equipments such as power cable, instrument transformer, lightning arrester.
Background technology
Existing epoxy resin bushing, its interior metal conductor appearance adopts blasting craft, because metallic conductor and epoxy resin are behind moulding by casting, the coefficient of expansion there are differences, therefore after the epoxy resin bushing moulding, because the internal stress effect between metallic conductor and the epoxide resin material produces the slit, not only make epoxy resin bushing gas leakage, and its mechanical strength can reduce also.In addition, when epoxy resin bushing was used for the high voltage connection, electric field can not effectively be shielded, and affects its partial discharge performance.
Summary of the invention
The utility model provides a kind of epoxy resin bushing, metallic conductor and epoxy resin have mainly been solved behind moulding by casting, because the coefficient of expansion there are differences, after causing the epoxy resin bushing moulding, because the internal stress effect produces the slit, not only make epoxy resin bushing gas leakage, and reduce its mechanical strength.Simultaneously, when having solved epoxy resin bushing for the high voltage connection, electric field can not effectively be shielded, and affects the problem of its partial discharge performance.
Concrete technical solution of the present utility model is as follows:
This epoxy resin bushing comprises metallic conductor, fixedly mold insert and the shading ring that is connected with metallic conductor, and metallic conductor, fixedly mold insert and shading ring are integral by poured with epoxy resin, and described metallic conductor surface scribbles layer of conductive material.
Above-mentioned fixedly mold insert, shading ring surface scribble layer of conductive material.
Above-mentioned electric conducting material is electrically conductive ink or conductive rubber or conduction ethylene-propylene diene copolymer or conduction butadiene acrylonitrile rubber.
The utility model has the advantage of:
After this epoxy resin bushing metallic conductor and the poured with epoxy resin moulding, expansion coefficient difference is little, close contact between metallic conductor and the epoxy resin, and seamless, epoxy resin bushing is air tight, and has guaranteed mechanical strength.Simultaneously, epoxy resin bushing is when being used for the high voltage connection, and electric field has obtained effective shielding, has improved partial discharge performance.
Description of drawings
Fig. 1 is the utility model structural representation.
Wherein: 1-epoxy resin bushing body; The 2-metallic conductor; The 3-electrically conductive ink; The 4-shading ring; 5-is mold insert fixedly.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail, as shown in Figure 1:
This epoxy resin bushing comprises metallic conductor 2, fixedly mold insert 5 and shading ring 4, wherein be threaded connection or rivet between shading ring and the metallic conductor, metallic conductor, fixedly become an integral body with poured with epoxy resin between mold insert and the shading ring, and through the hot setting moulding.Before the poured with epoxy resin, the metallic conductor surface uniform be sprayed with one deck electrically conductive ink, make transition bonding between metallic conductor and the epoxy resin, the difference of having dwindled the coefficient of expansion; Make close contact between metallic conductor and the epoxy resin, seamless, guaranteed that epoxy resin bushing is air tight, and guaranteed mechanical strength.Simultaneously, epoxy resin bushing is when being used for the high voltage connection, and electric field has obtained effective shielding, has improved partial discharge performance.In order to guarantee fixedly mechanical strength and the electrical property between the mold insert and shading ring and epoxy resin, also can improve at its surface spraying one deck electrically conductive ink.
Claims (3)
1. epoxy resin bushing, comprise metallic conductor, fixedly mold insert and the shading ring that is connected with metallic conductor, metallic conductor, fixedly mold insert and shading ring are integral by poured with epoxy resin, and it is characterized in that: described metallic conductor surface scribbles layer of conductive material.
2. epoxy resin bushing according to claim 1, it is characterized in that: fixedly mold insert, shading ring surface scribble layer of conductive material.
3. epoxy resin bushing according to claim 2 is characterized in that: described electric conducting material is electrically conductive ink or conductive rubber or conduction ethylene-propylene diene copolymer or conduction butadiene acrylonitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320254602 CN203243013U (en) | 2013-05-10 | 2013-05-10 | Epoxy resin bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320254602 CN203243013U (en) | 2013-05-10 | 2013-05-10 | Epoxy resin bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203243013U true CN203243013U (en) | 2013-10-16 |
Family
ID=49320272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320254602 Expired - Lifetime CN203243013U (en) | 2013-05-10 | 2013-05-10 | Epoxy resin bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203243013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109872849A (en) * | 2018-11-26 | 2019-06-11 | 平高集团有限公司 | A kind of disk insulator and its manufacturing method |
-
2013
- 2013-05-10 CN CN 201320254602 patent/CN203243013U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109872849A (en) * | 2018-11-26 | 2019-06-11 | 平高集团有限公司 | A kind of disk insulator and its manufacturing method |
| CN109872849B (en) * | 2018-11-26 | 2020-11-06 | 平高集团有限公司 | Disc insulator and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |