To provide a novel electric drive device and a novel electric power steering device capable of restraining a risk of damage of a heating component arranged on a cover side and efficiently radiating heat of the heating component to the outside.SOLUTION: A first heating component 47 is mounted on a first surface 46A which is one surface of a mounting substrate 46, second heating components 48A and 48B are mounted on a second surface 46B which is the other surface, a first heat radiation member 54 radiating heat of the first heating component 47 of the first surface 46A is made contact with the second surface of a position corresponding to a mounting position of the first heating component 47 and made radiate heat to a motor housing 25, and a second heat radiation member 55 radiating heat of the second heating components 48A and 48B of the second surface 46B is made contact with the first surface of a position corresponding to a mounting position of the second heating component 48 and made radiate heat to a cover 27. A risk of damaging the heating component arranged on the cover 27 side can be restricted, and further the heat of the heating component can be efficiently radiated to the outside.SELECTED DRAWING: Figure 2

    【課題】カバー側に配設された発熱部品の損傷の恐れを抑制し、効率良く発熱部品の熱を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。【解決手段】実装基板46の一方の面である第1面46Aに第1発熱部品47を実装し、他方の面である第2面46Bに第2発熱部品48A、48Bを実装し、第1面46Aの第1発熱部品47の熱を放熱する第1放熱部材54を第1発熱部品47の実装位置に対応する位置の第2面に接触させてモータハウジング25に放熱させ、第2面46Bの第2発熱部品48A、48Bの熱を放熱する第2放熱部材55を第2発熱部品48の実装位置に対応する位置の第1面に接触させてカバー27に放熱させる。カバー27側に配設された発熱部品の損傷の恐れを抑制し、しかも効率良く発熱部品の熱を外部に放熱することができる。【選択図】図2


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    Titel :

    ELECTRIC DRIVE DEVICE AND ELECTRIC STEERING DEVICE


    Weitere Titelangaben:

    電動駆動装置及び電動ステアリング装置


    Beteiligte:
    YAMADA NARUTOSHI (Autor:in) / KANAZAWA TAKURO (Autor:in) / NAKANO KAZUHIKO (Autor:in) / ISHII AKIRA (Autor:in)

    Erscheinungsdatum :

    2021-06-17


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B62D MOTOR VEHICLES , Motorfahrzeuge / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H05K PRINTED CIRCUITS , Gedruckte Schaltungen




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