ELECTRICAL POWER STEERING APPARATUS FOR VEHICLE EQUIPPED WITH DAMPING COUPLER HAVING SERRATION

摘要

An electrical power steering apparatus for a vehicle is provided to remove the abrasion and noise by the direct contact of the axial direction serration. An electrical power steering apparatus for a vehicle comprises a boss(410) in which a first serration vertical to the driving shaft guide is formed; a warm shaft in which a second serration vertical to a warm shaft guide is formed; an outer rotor in which the third serration corresponding to the first serration is formed; an inner rotor in which the forth serration corresponding to the second serration is formed; a connection elastic member inserted between the outer rotor and the inner rotor. The end of the protruded part of the inner rotor includes the elastic body. The boss is fixed at the end of driving shaft(205) of the motor.