To provide a new power driving device comprising a satisfactory heat radiation characteristic and to provide an electric power steering device.SOLUTION: A power driving device comprises: a motor housing 11 storing an electric motor; and an electronic control section which is arranged on a side of an end face part of the motor housing, which is on an opposite side of an output section 14 of a rotational axis of the electric motor, and is constituted of a control circuit section 18, a power supply circuit section 17 and a power conversion circuit section 16 for driving the electric motor. The electric conversion circuit section 16 and the power supply circuit section 17 are arranged at the end face part of the motor housing 11. The control circuit section 18, the power supply circuit section 17 and the power conversion circuit section 16 are laminated and arranged in a direction of the rotational axis of the electric motor, the control circuit section 18, the power supply circuit section 17 and the power conversion circuit section 16 are covered by a metallic cover 12, and a heat radiating terminal member 38 and a heat radiating member 39 for radiating heat of the control circuit section 18 and the power supply circuit section 17 are thermally connected to a heat radiating region section 37 on an outer peripheral surface of the metallic cover 12.SELECTED DRAWING: Figure 11

    【課題】良好な放熱特性を備えた新規な電動駆動装置及び電動パワーステアリング装置を提供することにある。【解決手段】電動モータが収納されたモータハウジング11と、電動モータの回転軸の出力部14とは反対側のモータハウジングの端面部の側に配置された、電動モータを駆動するための制御回路部18、電源回路部17、電力変換回路部16からなる電子制御部とを備え、モータハウジング11の端面部には、電力変換回路部16と電源回路部17が設置され、制御回路部18、及び電源回路部17、電力変換回路部16は、電動モータの回転軸の方向に積層されて配置され、制御回路部18、及び電源回路部17、電力変換回路部16は、金属カバー12に覆われており、しかも金属カバー12の外周面の放熱領域部37には、制御回路部18や電源回路部17の熱を放熱する放熱端子部材38、放熱部材39が熱的に接続されている。【選択図】図11


    Access

    Download


    Export, share and cite



    Title :

    POWER DRIVING DEVICE AND ELECTRIC POWER STEERING DEVICE


    Additional title:

    電動駆動装置及び電動パワーステアリング装置


    Contributors:

    Publication date :

    2019-04-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / H05K PRINTED CIRCUITS , Gedruckte Schaltungen / B62D MOTOR VEHICLES , Motorfahrzeuge



    Electric driving device and electric power steering device

    MORIMOTO MASAKAZU | European Patent Office | 2024

    Free access

    ELECTRIC DRIVING DEVICE AND ELECTRIC POWER STEERING DEVICE

    MORIMOTO KYOICHI | European Patent Office | 2023

    Free access

    ELECTRIC DRIVING DEVICE AND ELECTRIC POWER STEERING DEVICE

    MOTODA HARUAKI | European Patent Office | 2016

    Free access

    ELECTRIC DRIVING DEVICE AND ELECTRIC POWER STEERING DEVICE

    FUJIMOTO MASAO | European Patent Office | 2016

    Free access

    ELECTRIC DRIVING DEVICE AND ELECTRIC POWER STEERING DEVICE

    MORIMOTO MASAKAZU | European Patent Office | 2023

    Free access