The invention provides a coaxial electric vehicle rear axle and an electric vehicle. The coaxial electric vehicle rear axle comprises an axle housing, a power shaft, a driving motor, a differential mechanism and two output half shafts, a stator of the driving motor is fixed on the axle housing, and a rotor of the driving motor is fixed on the power shaft; the power shaft is a hollow shaft, the differential mechanism and the power shaft are coaxially arranged, and one output half shaft penetrates through the power shaft to be connected with one side of the differential mechanism. The other output half shaft is connected with the other side of the differential mechanism; the power shaft is in transmission connection with the differential mechanism; the output half shaft further penetrates through the interior of the axle housing and extends out of the axle housing. After the stator on the axle housing is powered on, the rotor drives the power shaft to rotate, the power shaft transmits power to the differential mechanism ring gear through the transmission structure, and then the differential mechanism drives the two output half shafts to rotate to output power. And one of the output half shafts relatively rotates in the power shaft. The problems that in the prior art, a rear axle is large in occupied radial space and large in noise are solved.

    本发明提供了一种同轴式电动车后桥及电动车,其包括桥壳、动力轴、驱动电机、差速器和两个输出半轴;所述驱动电机的定子固定在桥壳上,转子固定在动力轴上;所述动力轴为空心轴且差速器与动力轴同轴设置,其中一个所述输出半轴穿过所述动力轴与差速器一侧连接;另一输出半轴与差速器另一侧连接;所述动力轴与差速器传动连接;所述输出半轴还穿过所述桥壳内部伸出桥壳外。给桥壳上的定子通电后,转电子带动动力轴转动,动力轴通过传动结构将动力传递至差速器环齿轮上,再由差速器带动两个输出半轴转动输出动力。其中一根输出半轴在动力轴内部发生相对转动。本发明解决了现有技术中存在的后桥占用径向空间大,噪声大的问题。


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    Titel :

    Coaxial electric vehicle rear axle and electric vehicle


    Weitere Titelangaben:

    一种同轴式电动车后桥及电动车


    Beteiligte:
    XIAO FULU (Autor:in) / WU GANG (Autor:in)

    Erscheinungsdatum :

    2021-03-12


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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 / B60B VEHICLE WHEELS , Räder für Fahrzeuge



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