Patent ID: 6477918
Filing Date: 2002-11-12
Classification: F16H,F16M,H02K,Y10T

Abstract:
An inner rotor type rotary electric machine, comprising:an inner rotor type motor having a stator and a rotor with a hollow rotation shaft which extends through a center hollow portion of said stator; a reduction gear for reducing an output speed of said inner rotor type motor and extracting an output through a hollow shaft thereof coaxially with said hollow rotation shaft; and a slip ring assembly having a slip ring and a brush, wherein one of said slip ring and said brush is attached to one of a hollow portion of said rotor hollow rotation shaft and an output portion of said reduction gear, which comprises an extended portion of said hollow shaft over said inner rotor type motor, wherein a lead wire thereof extends through said hollow portion of said hollow shaft and the other of said slip ring and said brush is fixed to a non-rotational portion thereof.