公开(公告)号：US20180222063A1

公开(公告)日：2018-08-09

申请号：US15943231

申请日：2018-04-02

Applicant: ABB Schweiz AG

Inventor： Kaiyuan Cao ,  Xiaodong Cao ,  Yun Ha ,  Zhu Zhu ,  Jiajie Sha

IPC: B25J19/00 ,  B25J17/02 ,  H05K1/03

CPC classification number: B25J19/0025 ,  B25J17/00 ,  B25J17/02 ,  B25J19/0029 ,  H01R35/025 ,  H05K1/0393

Abstract: A robot joint and a robot using the robot joint is provided. The robot joint includes a first part and a second part configured to be rotatable with each other around a joint axis. A flexible printed circuit board is further included with a first fixing point and a second fixing point respectively fastened to the first part and the second part. The flexible printed circuit board is spiral-shaped prior to bending. With the relative rotation of the first part and the second part, the flexible printed circuit board is bent at various bending portions. This makes the robot joint more compact with a larger rotation range and a long lifetime in a cost effective way.