CN202930861U - Wall-through bushing for high voltage switch cabinet - Google Patents
Wall-through bushing for high voltage switch cabinet Download PDFInfo
- Publication number
- CN202930861U CN202930861U CN 201220634724 CN201220634724U CN202930861U CN 202930861 U CN202930861 U CN 202930861U CN 201220634724 CN201220634724 CN 201220634724 CN 201220634724 U CN201220634724 U CN 201220634724U CN 202930861 U CN202930861 U CN 202930861U
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- China
- Prior art keywords
- bushing
- wall
- cylindrical shell
- sleeve body
- bushing body
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- Expired - Fee Related
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Abstract
Disclosed is a wall-through bushing for a high voltage switch cabinet, comprising a bushing body, mother board fixed plates, and a shield ring, wherein both the inner wall and the outer wall of the bushing body are provided with skirt edges, and the shield ring is embedded in the inner wall of the bushing body. The wall-through bushing of the utility model is characterized in that the inner skirt edge upon the inner wall of the bushing body is an axially extended cylindrical shell; the central section of the cylindrical shell and the bushing body are integrated into one body; two ends of the cylindrical shell and the bushing body form circular separation chambers in a split manner; and the mother board fixed plates are respectively arranged at two ends of the cylindrical shell. The wall-through bushing of the utility model effectively increases the creepage distance of the mother board, thereby helping prolong the service lifetime of the bushing. In addition, the mother board can rotate at 360 degrees according to the actual needs, thereby facilitating the arrangement of the cabinet body. Moreover, a viscose glue layer is arranged to the contact surface between the shield ring and the bushing body, thereby solving the combining problem between the shield ring and the bushing body made of epoxy resin. The wall-through bushing of the utility model features good sealing performance and does not generate air gap discharging phenomenon.
Description
Technical field
The utility model relates to a kind of high-tension switch cabinet wall bushing, especially belongs to a kind of TGZ13A-40.5 shielded tube.
Background technology
China Patent No. 200920113305.8 discloses a kind of wall bushing used for switch cabinet.Its structure comprises the sleeve body of straight-tube shape, and the parts such as busbar support clamping plate and shading ring, be equipped with the shirt rim for increasing creepage distance on the inside and outside wall of sleeve body, shading ring is embedded on the inwall of sleeve body, busbar support clamping plate radially are arranged on the middle part of shading ring, and be fixedly connected with busbar by an end, the other end is realized being electrically connected to the wire that busbar support clamping plate are fixedly connected with.Rely on metallic spring to be connected between previous shading ring and busbar thereby solved, busbar, metallic spring are subject to the electric power impact and produce vibration, thereby affect the even distribution of electric field on shading ring, the phenomenon of generation corona.But this wall bushing particularly finds that still there are the following problems: 1, due to sleeve body inner skirt structure, cause creepage distance short, and then affected the useful life of sleeve pipe in actual use in high height above sea level, large electric current environment use.2, metallic shield ring and resin sleeve body are the integral cast part, in use are subjected to electric power to affect both and are prone to division, have the phenomenon that produces bubble-discharge, have directly affected the safe and reliable operation of switch cubicle.
Summary of the invention
The problems referred to above that exist for solving prior art, the utility model aims to provide a kind of high-tension switch cabinet wall bushing, this sleeve pipe is particluarly suitable for using under high height above sea level, large electric current ambient condition, has a creepage distance long, is difficult for the advantage of generation bubble-discharge phenomenon.
for achieving the above object, the utility model has adopted following technical scheme: this high-tension switch cabinet structure of wall bushing, comprise that both ends open is the sleeve body of straight-tube shape, and busbar fixed head and shading ring, be equipped with the shirt rim on the inside and outside wall of described sleeve body, described shading ring is embedded on the inwall of described sleeve body, it is characterized in that: the inner skirt that is arranged on described sleeve body inwall is an axially extended cylindrical shell, the middle part of this cylindrical shell is connected with described sleeve body, the two ends of this cylindrical shell and described sleeve body split form the annular space chamber, described busbar fixed head has two, and they split the two ends at described cylindrical shell.
During as preferred concrete enforcement, described busbar fixed head has groove for insulation circular slab, its middle part, and radially close-fit is embedded on the internal ring wall of described cylindrical shell.
During as preferred concrete enforcement, has adhesive-layer on the contact-making surface of described shading ring and described sleeve body.
Beneficial effect: compared with prior art, at first, the utility model makes inner skirt into one along the axially extended cylindrical shell of sleeve body inner chamber, and makes the two ends of cylindrical shell and sleeve body split form the annular space chamber; Again with two busbar fixed heads of being made by insulating material, be movably arranged on the two ends of the cylindrical shell with annular space chamber, effectively increased on the one hand the creepage distance of busbar, be conducive to extend the useful life of sleeve pipe, on the other hand, because being that close-fit is movable, two busbar fixed heads arrange, therefore, busbar can be done 360 degree rotations as required, thereby has brought convenience for the arrangement of cabinet.Moreover, after increasing adhesive-layer on the contact-making surface of shading ring and described sleeve body, solved between the sleeve body that shading ring and epoxy resin makes in conjunction with problem, have advantages of good seal performance, can not produce the bubble-discharge phenomenon, be conducive to reduction office high-volume, extend Service Life of Casing, and guarantee switch cubicle safe and reliable operation more.
For deepening understanding of the present utility model, be described in further detail by embodiment below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is vertical sectional structure schematic diagram of an embodiment of the utility model.
In figure: sleeve body 1, outer skirt 11, inner skirt 12, annular space chamber 121, shading ring 2 connects wire 3, and busbar fixed head 4 is installed inserts 5, busbar 6.
Embodiment
Referring to Fig. 1.The high-tension switch cabinet wall bushing of the present embodiment comprises that both ends open is the sleeve body 1 of straight-tube shape, and two busbar fixed heads 4 and shading ring 2.Have outer skirt 11 on the outer wall of sleeve body 1, have inner skirt 12 on inwall.This inner skirt 12 is one, and the middle part of cylindrical shell is connected with sleeve body 1 along the sleeve body 1 axially extended cylindrical shell of internal channel, and 1 split of the two ends of cylindrical shell and described sleeve body forms annular space chamber 121.Two busbar fixed heads 4 are the silicon rubber insulation circular slab, and they split the two ends at described cylindrical shell.The middle part of two circular slabs all has axial groove, and this groove is used for admitting and the location busbar.During installation, two circular slabs radially close-fit are embedded on the internal ring wall of described cylindrical shell.
Be the firmness after reinforcement shading ring 2 and sleeve body 1 integral cast, have adhesive-layer on the contact-making surface of described shading ring 2 and described sleeve body 1, therefore the integral body after casting has better firmness, in use separating phenomenon can not occur.
Above-described embodiment only is used for mentality of designing of the present utility model is described, and should not be considered as structure qualification of the present utility model, and is any under the utility model mentality of designing inspires and the distressed structure of making all should be subject to the protection of this patent.
Claims (3)
1. a high-tension switch cabinet wall bushing, comprise that both ends open is the sleeve body of straight-tube shape (1), and busbar fixed head (4) and shading ring (2), is equipped with the shirt rim on the inside and outside wall of described sleeve body (1); Described shading ring (2) is embedded on the inwall of described sleeve body (1), it is characterized in that: the inner skirt (12) that is arranged on described sleeve body (1) inwall is an axially extended cylindrical shell, the middle part of this cylindrical shell is connected with described sleeve body (1), and the two ends of this cylindrical shell and described sleeve body (1) split form annular space chamber (121); Described busbar fixed head (4) has two, and they split the two ends at described cylindrical shell.
2. wall bushing as claimed in claim 1, its feature: described busbar fixed head (4) has groove for insulation circular slab, its middle part, and radially close-fit is embedded on the internal ring wall of described cylindrical shell.
3. wall bushing as claimed in claim 1, its feature: have adhesive-layer on the contact-making surface of described shading ring (2) and described sleeve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220634724 CN202930861U (en) | 2012-11-27 | 2012-11-27 | Wall-through bushing for high voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220634724 CN202930861U (en) | 2012-11-27 | 2012-11-27 | Wall-through bushing for high voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202930861U true CN202930861U (en) | 2013-05-08 |
Family
ID=48220771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220634724 Expired - Fee Related CN202930861U (en) | 2012-11-27 | 2012-11-27 | Wall-through bushing for high voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202930861U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969684A (en) * | 2012-11-27 | 2013-03-13 | 浙江省开化七一电力器材有限责任公司 | Wall bushing for high-tension switch cabinet |
| CN103825233A (en) * | 2014-03-07 | 2014-05-28 | 解文 | High-voltage bus and method for improving current-carrying capability of high-voltage bus |
| WO2017004957A1 (en) * | 2015-07-06 | 2017-01-12 | 麦克奥迪（厦门）电气股份有限公司 | Insulating bush made of thermoplastic material and production method therefor |
-
2012
- 2012-11-27 CN CN 201220634724 patent/CN202930861U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969684A (en) * | 2012-11-27 | 2013-03-13 | 浙江省开化七一电力器材有限责任公司 | Wall bushing for high-tension switch cabinet |
| CN103825233A (en) * | 2014-03-07 | 2014-05-28 | 解文 | High-voltage bus and method for improving current-carrying capability of high-voltage bus |
| WO2017004957A1 (en) * | 2015-07-06 | 2017-01-12 | 麦克奥迪（厦门）电气股份有限公司 | Insulating bush made of thermoplastic material and production method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20211127 |