公开(公告)号：US20170366061A1

公开(公告)日：2017-12-21

申请号：US15623017

申请日：2017-06-14

Applicant: Johnson Electric S.A.

Inventor： Wan Hor LOOI ,  Chong Wei CHAN ,  Yuan TIAN ,  Yan Ju DONG

IPC: H02K5/02 ,  H02K5/18 ,  H02K1/27 ,  H02K7/14 ,  B27B17/08

Abstract: A rotor includes a yoke, an end cap, and a rotary shaft. The yoke is fixed relative to the end cap. The rotary shaft extends into the yoke. One end of the rotary shaft is connected to the end cap. The end cap is formed on the yoke and the rotary shaft by injection molding. The present invention further provides a motor and an electric tool including the rotor. In the rotor of this invention, the end cap is formed by injection molding, and the yoke and the rotary shaft are connected into a whole at the same time of forming the end cap. The traditional aluminium end cap is replaced with the molded end cap, which makes the rotor easier to fabricate and have a lighter weight and lower cost.

公开(公告)号：US20180051790A1

公开(公告)日：2018-02-22

申请号：US15679855

申请日：2017-08-17

Applicant: Johnson Electric S.A.

Inventor： Xiu Hua ZHU ,  Chang Qiao WU ,  Xiao Hui WANG ,  Wan Hor LOOI ,  Jing Ning TA

IPC: F16H55/06 ,  F16H55/17 ,  F16H1/46 ,  F16H57/08 ,  F16H57/00

CPC classification number: F16H55/06 ,  F16H1/46 ,  F16H55/17 ,  F16H57/0006 ,  F16H57/08 ,  F16H2055/176

Abstract: The present disclosure provides an internal ring gear, a driving assembly having the internal ring gear, and an application device employing the driving assembly. The internal ring gear includes at least two ring gears integrally arranged in parallel at an inner surface of a single housing.