Title:
WALL BUSHING
Document Type and Number:
WIPO Patent Application WO/2022/121873
Kind Code:
A1
Abstract:
A wall bushing, comprising a wall-through tube (2) fitting to a wall body, with an outdoor tube (3) and an indoor tube (4) abutting at two ends of the wall-through tube (2), wherein a bushing tube is provided with an end cover (5) on two ends thereof so as to seal an inner cavity of the bushing tube; a conductor (1) is located in the bushing tube; two middle shielding tubes (6) are provided, and are arranged at two ends of the wall-through tube (2) coaxially with the bushing tube and overhanging towards the outdoor tube (3) and the indoor tube (4) on the corresponding sides; and the conductor (1) passes through the middle shielding tubes (6) and has both ends thereof eccentrically arranged and located on an upper side of the axis of the bushing tube, such that the conductor (1), after flexural deformation, is located at a certain position in the middle shielding tubes (6) and coaxial with the corresponding middle shielding tube (6). When the conductor (1) is subjected to flexural deformation, the middle of the conductor (1) sags such that the portion thereof located at a certain position in the middle shielding tube (6) is coaxial with the corresponding middle shielding tube (5) so as to avoid the occurrence of discharge. In addition, there is no need to provide a supporting insulator in the bushing, which prevents the occurrence of flashover, so as to ensure that the wall bushing can run stably for a long time.
Inventors:
ZHONG JIANYING (CN)
ZHANG JIN (CN)
GAO YUAN (CN)
CHAI YINGHUI (CN)
DUAN XIAOHUI (CN)
TAN SHENGWU (CN)
DONG XIANGYUAN (CN)
WEI JIANWEI (CN)
XIE SHICHAO (CN)
ZHAN XIAOMENG (CN)
ZHANG NANNAN (CN)
ZHANG HAIBIN (CN)
LIU XIN (CN)
ZHANG JIN (CN)
GAO YUAN (CN)
CHAI YINGHUI (CN)
DUAN XIAOHUI (CN)
TAN SHENGWU (CN)
DONG XIANGYUAN (CN)
WEI JIANWEI (CN)
XIE SHICHAO (CN)
ZHAN XIAOMENG (CN)
ZHANG NANNAN (CN)
ZHANG HAIBIN (CN)
LIU XIN (CN)
Application Number:
PCT/CN2021/135966
Publication Date:
June 16, 2022
Filing Date:
December 07, 2021
Export Citation:
Assignee:
PINGGAO GROUP CO LTD (CN)
STATE GRID CORP CHINA (CN)
STATE GRID ANHUI ULTRA HIGH VOLTAGE COMPANY (CN)
STATE GRID CORP CHINA (CN)
STATE GRID ANHUI ULTRA HIGH VOLTAGE COMPANY (CN)
International Classes:
H02G3/22; H01B17/58; H02G15/00
Foreign References:
| CN112670923A | 2021-04-16 | |||
| CN214707019U | 2021-11-12 | |||
| CN105977887A | 2016-09-28 | |||
| EP2458701A1 | 2012-05-30 | |||
| CN105356392A | 2016-02-24 | |||
| CN110729684A | 2020-01-24 | |||
| CN110676779A | 2020-01-10 | |||
| CN207977696U | 2018-10-16 | |||
| CN108321741A | 2018-07-24 | |||
| US20100051306A1 | 2010-03-04 |
Attorney, Agent or Firm:
ZHENGZHOU RUIXIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: