The invention discloses an integrated electric drive shell and an electric drive assembly. Comprising a common end plate which is provided with a motor bearing hole. An integrally-formed motor outer shell is arranged on one axial side of the common end plate, the common end plate and the extension part jointly form a speed reducer shell end part, and the speed reducer shell end part is provided with an axial annular flange; an annular cooling groove is formed in the common end plate on the side of the motor outer shell; a cooling flow channel is arranged between the outer circumferential surface of a motor inner shell sleeved in the motor outer shell and the inner wall of the motor outer shell; the cooling flow channel is communicated with the annular cooling groove of the shared end plate; an oil collecting box is integrally formed on the common end plate on the speed reducer side, and the axial projection of the annular cooling groove and the axial projection of the oil collecting box are provided with a coincident part. The cooling flow channel on the motor side is long in flowing line; and the heat dissipation effect is improved. The oil stirring loss and heating under the high-speed working condition are reduced, the transmission efficiency of the electric drive assembly is improved, and the endurance mileage of the vehicle is increased.

    本发明公开一种集成式电驱动壳体及电驱总成。包括共用端板,共用端板开设有电机轴承孔;共用端板轴向一侧设置一体成型的电机外壳体,共用端板与延伸部共同构成减速器壳体端部,减速器壳体端部具有轴向的环形凸缘;电机外壳体侧的共用端板设置有环形冷却凹槽;套设在电机外壳体内的电机内壳体外圆周表面与电机外壳体内壁之间设置冷却流道,冷却流道与共用端板的环形冷却凹槽联通;减速器侧的共用端板上一体成型有集油盒,环形冷却凹槽与集油盒的轴向投影具有重合部。本发明电机侧的冷却流道流经线路长;提高散热效果。减小高速工况下的搅油损失和发热,提高电驱动总成的传动效率,有利于增加车辆的续航里程。


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    Title :

    Integrated electric drive shell and electric drive assembly


    Additional title:

    集成式电驱动壳体及电驱总成


    Contributors:
    YUAN JUNWEI (author) / WANG CHAO (author) / LIU SHUANG (author)

    Publication date :

    2022-09-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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