公开(公告)号：USD824853S1

公开(公告)日：2018-08-07

申请号：US29611837

申请日：2017-07-26

Applicant: Johnson Electric S.A.

Designer： Wan Hor Looi ,  Chong Wei Chan ,  Yuan Tian ,  Yan Ju Dong

公开(公告)号：US10673295B2

公开(公告)日：2020-06-02

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: H02K21/12 ,  H02K5/02 ,  H02K5/18 ,  H02K1/27 ,  H02K7/14 ,  B27B17/08 ,  H02K1/30

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.