公开(公告)号：US11305581B2

公开(公告)日：2022-04-19

申请号：US16474244

申请日：2017-12-15

Applicant: BYD COMPANY LIMITED

Inventor： Heping Ling ,  Zhen Zhai ,  Changan Huang ,  Yongmeng Luo

IPC: B60K7/00 ,  B60B35/14 ,  B60K17/356 ,  F16D11/14 ,  F16H1/28

Abstract: The present specification discloses a drive shaft locking device, a power-driven system, and a vehicle. The drive shaft locking device comprises a planetary gear mechanism comprising a sun gear, a planetary gear, a planetary carrier, and a gear ring. A first drive shaft is connected with one of the sun gear, the planetary carrier, and the gear ring, and a second drive shaft is connected with another one of the sun gear, the planetary carrier, and the gear ring. A power joint device comprises a first joint part and a second joint part. The first drive shaft and the first joint part synchronously rotate, and the second drive shaft and the second joint part synchronously rotate. A joint part drive comprises a drive part to drive a drive needle for joining the second joint part with the first joint part along the axial direction.