The invention discloses an electric drive speed reducer, an electric drive axle power assembly and a vehicle. The electric drive speed reducer comprises: a first planetary gear mechanism, wherein thefirst planetary gear mechanism comprises a first sun gear, a first planet carrier and a first gear ring, the first sun gear is used for being in power coupling connection with a drive motor, and the first gear ring can be selectively locked or in power coupling connection with the first sun gear; and a second planetary gear mechanism, wherein the second planetary gear mechanism comprises a secondsun gear, a second planet carrier and a second gear ring, the second sun gear is connected with the first planet carrier, the second gear ring is locked, and the second planet carrier is used for being connected with the input end of the differential mechanism. According to the electric drive speed reducer, the power of the drive motor can be output through first-stage speed reduction or second-stage speed reduction, and two selectable speed ratios are provided for power output, so that the power performance and economical efficiency of a vehicle carrying the electric drive speed reducer are improved, input and output are coaxially arranged, the structure is compact, and vehicle carrying and arrangement are facilitated.

    本发明公开了一种电驱减速器、电驱动桥动力总成、车辆,电驱减速器包括:第一行星齿轮机构,第一行星齿轮机构包括第一太阳轮、第一行星架和第一齿圈,第一太阳轮用于与驱动电机动力耦合连接,第一齿圈可选择性地锁止或者与第一太阳轮动力耦合连接;第二行星齿轮机构,第二行星齿轮机构包括第二太阳轮、第二行星架和第二齿圈,且第二太阳轮与第一行星架相连,第二齿圈锁止,第二行星架用于与差速器的输入端相连。根据本发明的电驱减速器电驱减速器可以通过一级减速或二级减速输出驱动电机的动力,且具有两种可选择的速比进行动力输出,从而提高搭载该电驱减速器的车辆的动力性和经济性输入与输出同轴布置,结构紧凑,便于车辆搭载布置。


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    Title :

    Electric drive speed reducer, electric drive axle power assembly and vehicle


    Additional title:

    电驱减速器、电驱动桥动力总成、车辆


    Contributors:
    ZHU XINMING (author)

    Publication date :

    2020-07-07


    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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