Disclosed is an electric power steering apparatus capable of reducing the operating noise of a ball screw. According to the present invention, the electric power steering apparatus comprises: a ball screw part having a helical outer circumference groove on the outside thereof; a ball part movable along the outer circumference groove; and a ball nut part enclosing the outside of the ball screw part, having a helical inner circumference groove facing the outer circumference groove to allow the ball part to be moved thereon on the inside thereof, and reducing the weight of the ball part.

    전동식 파워 스티어링 장치에 관한 발명이 개시된다. 본 발명에 따른 전동식 파워 스티어링 장치는: 외측면에 나선형의 외주홈을 구비하는 볼스크류부; 외주홈을 따라 이동 가능한 볼부; 및 볼스크류부의 외측면을 감싸고, 내측면에 외주홈과 마주하여 볼부가 이동되는 나선형의 내주홈을 구비하며, 볼부의 하중을 감소시키는 볼너트부를 포함하는 것을 특징으로 한다.


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    Title :

    ELECTRIC POWER STEERING APPARATUS


    Additional title:

    전동식 파워 스티어링 장치


    Contributors:
    KIM DONG HUN (author) / KOO JAE KWON (author)

    Publication date :

    2024-01-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    F16H Getriebe , GEARING / B62D MOTOR VEHICLES , Motorfahrzeuge



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