CN206711765U - A kind of sealing structure of the binding post of oil-immersed power electronic capacitor - Google Patents
A kind of sealing structure of the binding post of oil-immersed power electronic capacitor Download PDFInfo
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- CN206711765U CN206711765U CN201720108146.7U CN201720108146U CN206711765U CN 206711765 U CN206711765 U CN 206711765U CN 201720108146 U CN201720108146 U CN 201720108146U CN 206711765 U CN206711765 U CN 206711765U
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- washer
- binding post
- sealing ring
- insulator
- case lid
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Abstract
The utility model discloses a kind of sealing structure of the binding post of oil-immersed power electronic capacitor, capacitor includes case shell, case lid and binding post, the sealing structure of binding post includes insulator, conducting rod, round nut, fiber washer, sealing ring, insulating washer, metal washer and insulating barrier, binding post is arranged on case lid, sealing ring is placed in the hole of case lid, the endoporus of insulator is stretched on the top of sealing ring, sealing ring bottom is stained with insulating washer, conducting rod puts metal washer successively, insulating barrier, after insulating washer sealing ring and insulator are penetrated below case lid, fiber washer and round nut are placed on the top groove of insulator.The structure can efficiently solve sealing and the Insulation Problems of oil-immersed power electronic capacitor binding post.The utility model is simple in construction, easy to assembly, good seal performance, service life length, securely and reliably.
Description
Technical field
The utility model belongs to power capacitor field, and in particular to a kind of terminals of oil-immersed power electronic capacitor
The sealing structure of son.
Background technology
In the high-power converter such as high voltage converter of tens MW class, high speed motor car current transformer, track traffic tractor
In the equipment such as current transformer, clean energy resource TRT current transformer, the power electronic capacitor using high voltage large capcity is both needed to（With
Lower abbreviation " capacitor "）.
The capacitor used in these devices is mainly oil immersed type at present.This kind of capacitor uses metal shell, has heat-resisting
The advantages that performance is good, electric strength is high, partial discharge performance is excellent, carrying capability of overload is strong, service life is long, but there is also
It is poor the sealing property of binding post, the drawbacks of easily causing leakage of oil and influence capacitor operational reliability and security,
Therefore its sealing structure is the major issue for needing to solve.
The content of the invention
In order to solve the problems, such as the easy leakage of oil in power electronic capacitor binding post position, the utility model provides a kind of
The sealing structure of binding post.
Technical scheme is as follows used by the utility model solves the problems, such as.
The capacitor includes case shell, case lid and binding post.The sealing structure of the binding post is by conducting rod, circle spiral shell
Mother, fiber washer, insulator, sealing ring, insulating washer, metal washer and insulating barrier etc. are formed.Binding post is arranged on electricity
On the case lid of container, as capacitor plate exit and with case lid insulate.Binding post is arranged on the case of capacitor case
Cover, what is mainly solved is the sealing problem of insulator and case lid, insulator and conducting rod.Sealing ring is placed in capacitor case lid
Hole in, bottom is stained with insulating washer；Insulator is covered above case lid, the endoporus of insulator is stretched on the top of sealing ring；
Conducting rod puts metal washer, insulating barrier, insulating washer successively, and sealing ring and insulator are penetrated from capacitor case lid lower section；
Fiber washer is placed in the top groove of insulator, round nut is mounted in conducting rod top, tightened, extruding force to seal
Circle is close on conducting rod and case lid, plays sealing function.The material of the sealing ring is silicon rubber, 40 ~ 45 degree of shore hardness；
The material of the insulator is SMC composites；The conductive bar material is brass；The fiber washer, insulating washer and absolutely
Edge separator material is electrician's cardboard.
Advantageous effects of the present utility model are：According to the structure, characteristic and operating mode of oil-immersed power electronic capacitor,
Using such scheme, the sub sealing of oil immersed type capacitor terminal and Insulation Problems can be efficiently solved.Sealing ring uses oil resistant
Performance and the good silicon rubber of ageing resistace that works at high temperature for a long time.The utility model is simple in construction, easy to assembly, close
Sealing property is good, service life length, securely and reliably.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram of the utility model installation on the capacitor.
Fig. 2 is vertical section organigram of the present utility model.
Fig. 3 is the vertical section structural map that part A is amplified in Fig. 2.
Fig. 4 is the vertical section structural map that part B is amplified in Fig. 2.
In figure, 1- tank of power capacitor；2- capacitor case lids；3- capacitor terminals；
31- conducting rods；32- round nuts；33- fiber washers；34- insulators；35- sealing rings；36- insulating washers；37- gold
Belong to packing ring；38- insulating barriers.
Embodiment
The utility model is further described below in conjunction with the drawings and specific embodiments.
Visible in Fig. 1, the utility model covers installed in capacitor box.
Fig. 2 is the vertical section organigram of the utility model installation.
Fig. 3 show the vertical section structural map that part A is amplified in Fig. 2, it is shown that sealing ring（35）And insulator（34）
Situation during malcompression.
Fig. 4 show the vertical section structural map that part B is amplified in Fig. 2, it is shown that sealing ring（35）And insulator（34）
The situation compressed.The sealing structure of binding post includes conducting rod（31）, round nut（32）, fiber washer（33）, insulator
（34）, sealing ring（35）, insulating washer（36）, metal washer（37）And insulating barrier（38）.During assembling, sealing ring（35）It is placed in
Capacitor case lid（2）Hole in, sealing ring（35）It is close to mucilage binding insulating washer below case lid in bottom（36）；Conducting rod（31）Successively
Through metal washer（37）, insulating barrier（38）, insulating washer（36、）Sealing ring（35）And insulator（34）Hole；Insulating
Fiber washer is placed on the conducting rod of sub- top groove（33）；Round nut（32）With conducting rod（31）Screw thread coordinates, after being screwed to bottom
Apply certain torsion so that above-mentioned part is combined closely, and sealing ring is close to conducting rod and capacitor case lid, and formation completely connects
Line end sealing structure.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should all cover within the scope of utility model of the present utility model.Therefore, the scope of protection of the utility model
It should be defined by scope of the claims.
Claims (2)
1. a kind of sealing structure of the binding post of oil-immersed power electronic capacitor, the capacitor include case shell, case lid and
Binding post, the sealing structure of the binding post are characterised by：Described sealing structure includes insulator, conducting rod, circle spiral shell
Mother, fiber washer, sealing ring, insulating washer, metal washer and insulating barrier, the binding post are arranged on the case lid,
The sealing ring is placed in the hole of the case lid, and the endoporus of insulator is stretched on the top of the sealing ring, under the sealing ring
End is stained with the insulating washer, and the conducting rod is put after metal washer, insulating barrier, insulating washer below case lid successively
Sealing ring and insulator are penetrated, the fiber washer and the round nut are placed on the top groove of the insulator.
2. sealing structure according to claim 1, it is characterized in that：Its shore hardness 40 ~ 45 of the sealing ring, its material are
Silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720108146.7U CN206711765U (en) | 2017-02-05 | 2017-02-05 | A kind of sealing structure of the binding post of oil-immersed power electronic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720108146.7U CN206711765U (en) | 2017-02-05 | 2017-02-05 | A kind of sealing structure of the binding post of oil-immersed power electronic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206711765U true CN206711765U (en) | 2017-12-05 |
Family
ID=60472805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720108146.7U Active CN206711765U (en) | 2017-02-05 | 2017-02-05 | A kind of sealing structure of the binding post of oil-immersed power electronic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206711765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210457A1 (en) * | 2018-05-02 | 2019-11-07 | 江苏现代电力科技股份有限公司 | Soft conductor high-voltage capacitor |
-
2017
- 2017-02-05 CN CN201720108146.7U patent/CN206711765U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210457A1 (en) * | 2018-05-02 | 2019-11-07 | 江苏现代电力科技股份有限公司 | Soft conductor high-voltage capacitor |
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