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.


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    Titel :

    Electric drive device and electric power steering device


    Beteiligte:
    FUJIMOTO MASAO (Autor:in)

    Erscheinungsdatum :

    2020-06-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

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



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