US 12,484,184 B2
High-voltage bushing and high-voltage power transmission system
Shan Liu, Beijing (CN); Zehong Liu, Beijing (CN); Shaowu Wang, Beijing (CN); Xianshan Guo, Beijing (CN); Yong Huang, Beijing (CN); Jin Zhang, Beijing (CN); Shengli Song, Beijing (CN); Jinzhong Li, Beijing (CN); Licheng Lu, Beijing (CN); Yunpeng Li, Beijing (CN); Jianhui Zhou, Beijing (CN); Hang Wang, Beijing (CN); Zhe Jiang, Beijing (CN); and Junyi Hou, Beijing (CN)
Assigned to STATE GRID CORPORATION OF CHINA, Beijing (CN); and STATE GRID SMART GRID RESEARCH INSTITUTE CO., LTD., Beijing (CN)
Appl. No. 18/027,047
Filed by State Grid Corporation of China, Beijing (CN); and State Grid Smart Grid Research Institute Co., LTD., Beijing (CN)
PCT Filed Apr. 28, 2022, PCT No. PCT/CN2022/089814
§ 371(c)(1), (2) Date Mar. 17, 2023,
PCT Pub. No. WO2022/233261, PCT Pub. Date Nov. 10, 2022.
Claims priority of application No. 202110497336.3 (CN), filed on May 7, 2021.
Prior Publication US 2023/0328918 A1, Oct. 12, 2023
Int. Cl. H02G 3/22 (2006.01); H05K 7/20 (2006.01); H02G 5/02 (2006.01)
CPC H05K 7/20209 (2013.01) [H05K 7/20145 (2013.01); H05K 7/20172 (2013.01); H02G 3/22 (2013.01); H02G 5/02 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A high-voltage bushing, comprising:
a conductive rod having an air channel therein, the air channel including an air inlet and an air outlet; and
an air cooling device including at least one fan, the fan being configured to output air flow, so as to blow the air flow into the air channel through the air inlet;
wherein the air channel further includes an air inlet channel and an air outlet channel, wherein a first end of the air inlet channel and a first end of the air outlet channel are located at a first end of the conductive rod; the air inlet is located at the first end of the air inlet channel, and the air outlet is located at the first end of the air outlet channel; and a second end of the air inlet channel and a second end of the air outlet channel communicate with each other at a position that is in the conductive rod and is adjacent to a second end of the conductive rod; and
the conductive rod is provided with a plurality of through holes therein, and the plurality of through holes each extend in an axial direction of the conductive rod and communicate with one another at an inner side of the second end of the conductive rod; a part of the plurality of through holes forms the air inlet channel, and another part forms the air outlet channel.