A heat radiation base body extending in a direction of a rotation shaft of an electric motor close to the rotation shaft is provided at an end surface of a motor housing accommodating the electric motor. A board of one electronic control unit of a redundant system is fixed to the heat radiation base body along the direction in which heat radiation base body extends with thermal conduction allowed. A board of the other electronic control unit of redundant system is fixed to the heat radiation base body along a direction in which the heat radiation base body extends, so as to face the board of one electronic control unit, with thermal conduction allowed. A cover covering these is fixed to an end surface of the motor housing without a bolt. Thus, a housing accommodating the electronic control unit is not necessary. A sealing part is only the connecting portion between the motor housing and cover, thereby eliminating additional structure of the sealing part, sealing component required for seal and bolt.


    Access

    Download


    Export, share and cite



    Title :

    Electric drive device and electric power steering device


    Contributors:

    Publication date :

    2020-06-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B62D MOTOR VEHICLES , Motorfahrzeuge



    ELECTRIC DRIVE DEVICE AND ELECTRIC POWER STEERING DEVICE

    HARA HIDEYUKI | European Patent Office | 2022

    Free access

    Electric drive device and electric power steering device

    HAMADA KEIJI | European Patent Office | 2022

    Free access

    Electric drive device and electric power steering device

    SHIMAKAWA SHIGERU / SHIMIZU YURI / SUNAGA TAKASHI et al. | European Patent Office | 2020

    Free access

    ELECTRIC DRIVE DEVICE AND ELECTRIC POWER STEERING DEVICE

    HAMADA KEIJI | European Patent Office | 2019

    Free access

    ELECTRIC DRIVE DEVICE AND ELECTRIC POWER STEERING DEVICE

    HARA HIDEYUKI / MOTODA HARUAKI / NAKANO KAZUHIKO et al. | European Patent Office | 2019

    Free access