公开(公告)号：US20230386763A1

公开(公告)日：2023-11-30

申请号：US18323612

申请日：2023-05-25

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jisheng SUN ,  Jianfei MA ,  Xiufeng ZHANG ,  Xiaokang TIAN ,  Jiajing WU

IPC: H01H9/36 ,  H01H3/08 ,  H01H9/02

CPC classification number: H01H9/36 ,  H01H3/08 ,  H01H9/02

Abstract: A power supply system includes a control unit, a switch, a direct current source, and a power change unit. The switch includes a switch unit and an operation mechanism. The operation mechanism is configured to receive a switch-off signal and control the switch unit to be turned on or off. The switch unit includes a first static contact, a movable contact, and a first arc extinguishing structure. When the switch unit is turned off, the movable contact rotates about a rotation center relative to the first static contact by a first included angle to be separated from the first static contact, to generate a first arc. The first arc extinguishing structure includes a first arc extinguishing end part and a second arc extinguishing end part. A connection line between the first arc extinguishing end part and the rotation center of the movable contact is a first line.