CN102969684A - Wall bushing for high-tension switch cabinet - Google Patents
Wall bushing for high-tension switch cabinet Download PDFInfo
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- CN102969684A CN102969684A CN201210489720XA CN201210489720A CN102969684A CN 102969684 A CN102969684 A CN 102969684A CN 201210489720X A CN201210489720X A CN 201210489720XA CN 201210489720 A CN201210489720 A CN 201210489720A CN 102969684 A CN102969684 A CN 102969684A
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- bushing
- wall
- sleeve body
- busbar
- cylindrical shell
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Abstract
The invention discloses a wall bushing for a high-tension switch cabinet. The wall bushing for the high-tension switch cabinet comprises a bushing body, busbar fixing plates and a shielding ring, wherein skirts are arranged at the inner and outer walls of the bushing body, and the shielding ring is embedded in the inner wall of the bushing body. The wall bushing is characterized in that the inner skirt at the inner wall of the bushing body is a barrel which axially extends; the middle part of the barrel and the bushing body are connected with each other to form a whole body; an annular space cavity is formed by the two ends of the barrel and the bushing body in a split manner; and the busbar fixing plates are separately arranged at the two ends of the barrel. By virtue of the wall bushing, on one hand, the creep age distance of a busbar effectively increases so as to be beneficial to prolonging of the service life of the bushing, on the other hand, the busbar can rotate at 360 degrees according to requirements so as to facilitate the arrangement of a cabinet body. Furthermore, the combination between the shielding ring and the bushing body made from epoxy resin is realized after a sticking layer is added to the contact surface of the shielding ring and the bushing body, and the wall bushing has the advantages of having a good sealing property and avoiding an air gap discharge phenomenon.
Description
Technical field
The present invention relates to a kind of high-tension switch cabinet wall bushing, especially belong 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 shirt rim for increasing creepage distance at 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 with the wire that busbar support clamping plate are fixedly connected with.Rely on metallic spring to be connected between previous shading ring and the 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 in actual use in high height above sea level, large electric current environment use: 1, because sleeve body inner skirt structure causes creepage distance short, and then affected the useful life of sleeve pipe.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
Be to solve the problems referred to above that prior art exists, the present invention aims to provide a kind of high-tension switch cabinet wall bushing, and this sleeve pipe is particluarly suitable for using under high height above sea level, the large electric current ambient condition, and it is long to have a creepage distance, the advantage of difficult generation bubble-discharge phenomenon.
For achieving the above object, the present invention 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, inside and outside wall in described sleeve body is equipped with the shirt rim, described shading ring is embedded on the inwall of described sleeve body, it is characterized in that: the inner skirt that is arranged on the described sleeve body inwall is an axially extended cylindrical shell, the middle part of this cylindrical shell is connected with described sleeve body, and 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 implementation, 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 implementation, has adhesive-layer at the contact-making surface of described shading ring and described sleeve body.
Beneficial effect: compared with prior art, at first, the present invention 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 prolong the useful life of sleeve pipe, on the other hand, because two busbar fixed heads are the movable setting of close-fit, therefore, busbar can be done 360 degree rotations as required, thereby has brought convenience for the arrangement of cabinet.Moreover, after the contact-making surface of shading ring and described sleeve body increases adhesive-layer, solved between the sleeve body that shading ring and epoxy resin makes in conjunction with problem, have good seal performance, can not produce the advantage of bubble-discharge phenomenon, be conducive to reduction office high-volume, prolong Service Life of Casing, and guarantee more safe and reliable operation of switch cubicle.
For deepening the understanding of the present invention, 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 one embodiment of the invention.
Among the 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 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 the inwall.This inner skirt 12 is one, and the middle part of cylindrical shell is connected with sleeve body 1 along the axially extended cylindrical shell of sleeve body 1 internal channel, and the two ends of cylindrical shell and 1 split of described sleeve body form 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 to strengthen the firmness after shading ring 2 and sleeve body 1 integral cast, have adhesive-layer at the contact-making surface of described shading ring 2 and described sleeve body 1, therefore the integral body after the casting has better firmness, in use separating phenomenon can not occur.
Above-described embodiment only is used for mentality of designing of the present invention is described, and should not be considered as structure qualification of the present invention, and is any under mentality of designing of the present invention 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 comprises 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 at 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: the contact-making surface in described shading ring (2) and described sleeve body (1) has adhesive-layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210489720XA CN102969684A (en) | 2012-11-27 | 2012-11-27 | Wall bushing for high-tension switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210489720XA CN102969684A (en) | 2012-11-27 | 2012-11-27 | Wall bushing for high-tension switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102969684A true CN102969684A (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210489720XA Pending CN102969684A (en) | 2012-11-27 | 2012-11-27 | Wall bushing for high-tension switch cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN102969684A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106558858A (en) * | 2017-01-04 | 2017-04-05 | 上海宝临电气集团有限公司 | Epoxy resin wall bushing |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1929041A (en) * | 2006-08-17 | 2007-03-14 | 江苏东源电器集团股份有限公司 | 35KV O-shaped bus wall bushing |
| CN201130572Y (en) * | 2007-12-03 | 2008-10-08 | 河南森源电气股份有限公司 | Casing tube for switch equipment bus |
| CN101340065A (en) * | 2008-08-11 | 2009-01-07 | 余永松 | Bus-bar casing tube for high-voltage switch cabinet |
| CN201178008Y (en) * | 2008-03-28 | 2009-01-07 | 宁波天互电器有限公司 | Anti-flashover through-wall sleeve |
| CN201340770Y (en) * | 2008-11-28 | 2009-11-04 | 天水长城开关厂有限公司 | Wall bushing |
| CN201556490U (en) * | 2009-09-21 | 2010-08-18 | 广东四会互感器厂有限公司 | High voltage bushing with air gap |
| CN202178506U (en) * | 2011-08-22 | 2012-03-28 | 浙江雷安电气有限公司 | High-voltage switch cabinet casing pipe |
| CN202930861U (en) * | 2012-11-27 | 2013-05-08 | 浙江省开化七一电力器材有限责任公司 | Wall-through bushing for high voltage switch cabinet |
| JP2013085417A (en) * | 2011-10-12 | 2013-05-09 | Mitsubishi Electric Corp | Insulator |
-
2012
- 2012-11-27 CN CN201210489720XA patent/CN102969684A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1929041A (en) * | 2006-08-17 | 2007-03-14 | 江苏东源电器集团股份有限公司 | 35KV O-shaped bus wall bushing |
| CN201130572Y (en) * | 2007-12-03 | 2008-10-08 | 河南森源电气股份有限公司 | Casing tube for switch equipment bus |
| CN201178008Y (en) * | 2008-03-28 | 2009-01-07 | 宁波天互电器有限公司 | Anti-flashover through-wall sleeve |
| CN101340065A (en) * | 2008-08-11 | 2009-01-07 | 余永松 | Bus-bar casing tube for high-voltage switch cabinet |
| CN201340770Y (en) * | 2008-11-28 | 2009-11-04 | 天水长城开关厂有限公司 | Wall bushing |
| CN201556490U (en) * | 2009-09-21 | 2010-08-18 | 广东四会互感器厂有限公司 | High voltage bushing with air gap |
| CN202178506U (en) * | 2011-08-22 | 2012-03-28 | 浙江雷安电气有限公司 | High-voltage switch cabinet casing pipe |
| JP2013085417A (en) * | 2011-10-12 | 2013-05-09 | Mitsubishi Electric Corp | Insulator |
| CN202930861U (en) * | 2012-11-27 | 2013-05-08 | 浙江省开化七一电力器材有限责任公司 | Wall-through bushing for high voltage switch cabinet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106558858A (en) * | 2017-01-04 | 2017-04-05 | 上海宝临电气集团有限公司 | Epoxy resin wall bushing |
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Application publication date: 20130313 |