To provide a novel electric driving device and electric power steering device that allows reduction in the size of a power conversion circuit part and further can efficiently radiate heat of the power conversion circuit part to the outside.SOLUTION: A power conversion circuit part 16 packaged by a synthetic resin is formed, comprising a rotating shaft side 44A formed toward the side of a rotating shaft 23 of an electric motor, a control output terminal side 44B formed toward the side of a coil input terminal of the electric motor, and sides connecting the respective ends of the rotating shaft side and the control output terminal side. Control output terminals 48U to 48W respectively for three phases which are connected to a coil input terminal are provided on the control output terminal side 44B. Power switching elements 38 forming upper and lower arms for the respective phases are arranged along the control output terminal side 44B and closer to the control output terminal side 44B from around the center between the rotating shaft side 44A and the control output terminal side 44B in a staggered manner.SELECTED DRAWING: Figure 12

    【課題】電力変換回路部を小型化することができ、更には電力変換回路部の熱を効率よく外部に放熱することができる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】合成樹脂によってパッケージ化された、電動モータの回転軸23の側に向けて形成された回転軸側辺44Aと、電動モータのコイル入力端子の側に向けて形成された制御出力端子側辺44Bと、回転軸側辺と制御出力端子側辺の夫々の端部を結ぶ側辺とからなる電力変換回路部16を形成し、コイル入力端子と接続される三相の夫々の制御出力端子48U〜48Wを制御出力端子側辺44Bに設けると共に、夫々の相の上下アームを形成するパワースイッチング素子38を、制御出力端子側辺44Bに沿って、しかも回転軸側辺44Aと制御出力端子側辺44Bの間の中央付近から制御出力端子側辺44Bに寄せて千鳥状に配置した。【選択図】図12


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    Titel :

    ELECTRIC DRIVING DEVICE AND ELECTRIC POWER STEERING DEVICE


    Weitere Titelangaben:

    電動駆動装置及び電動パワーステアリング装置


    Beteiligte:

    Erscheinungsdatum :

    07.02.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

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



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