본 발명은 전동식 브레이크의 구동 유닛으로 비순환형 볼 스크루 방식을 적용하되, 패드 마모로 인한 볼의 위치 이동량을 자동으로 보상해줄 수 있는 전동식 브레이크를 제공하는 것에 목적이 있다. 이를 위해, 본 발명의 바람직한 구현예에서는 구동유닛을 포함하는 전동식 브레이크에 있어서, 볼 스크루와 함께, 압축 코일 스프링과 상기 압축 코일 스프링의 타측에 장착되는 볼 리테이너에 의해 패드 마모 보상이 이루지는 비순환형 볼 스크루 방식의 전동식 브레이크를 제공한다.

    An electromechanical brake (EMB) may include a nut member coupled to the piston and transferring an axial moving force to the piston; a screw coupled to the nut member and rotated to move the nut member in an axial direction; balls inserted between the nut member and the screw and transferring a rotational force of the screw to the nut member; a compression coil spring having one side mounted on the nut member; and a ball retainer mounted at the other side of the compression coil spring, wherein the ball retainer is disposed to be adjacent to a ball at a rearmost end portion among the balls inserted between the nut member and the screw, and pressurizes the compression coil spring while coming in contact with the balls during braking pressurization.


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    Title :

    Ball Screw Type Electro-Mechanical Brake


    Additional title:

    볼 스크루 타입 전동식 브레이크


    Publication date :

    2022-04-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16C SHAFTS , Wellen / F16H Getriebe , GEARING



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