The invention discloses an auxiliary frame of a vehicle, a vehicle body assembly of the vehicle and the vehicle. The auxiliary frame comprises a first cross beam and a second cross beam which are arranged at intervals in the first direction of the auxiliary frame; the plurality of auxiliary frame longitudinal beams are connected between the first cross beam and the second cross beam; the auxiliary frame longitudinal beam located on the outermost side is connected with a control arm installation frame. In the first direction, the third cross beam is located between the first cross beam and the second cross beam, the third cross beam is connected with the multiple auxiliary frame longitudinal beams, and in the second direction, the two ends of the third cross beam correspond to the control arm mounting frames of the corresponding auxiliary frame longitudinal beams respectively. Therefore, the two ends of the third cross beam correspond to the control arm mounting frames of the corresponding auxiliary frame longitudinal beams respectively, the third cross beam can play a role in supporting the control arm mounting frames of the corresponding auxiliary frame longitudinal beams, the rigidity of the control arm mounting frames can be improved, and the situation that road noise is transmitted to a passenger compartment through the control arm mounting frames is reduced; therefore, the vehicle driving noise is reduced, and the vehicle riding comfort is improved.

    本发明公开了一种车辆的副车架、车辆的车身组件以及车辆,副车架包括:第一横梁和第二横梁沿副车架的第一方向间隔排布;多个副车架纵梁均连接在第一横梁和第二横梁之间;位于最外侧的副车架纵梁连接有控制臂安装架;沿第一方向,第三横梁位于第一横梁和第二横梁之间,第三横梁和多个副车架纵梁均连接,且沿第二方向第三横梁的两端分别与相应副车架纵梁的控制臂安装架对应设置。由此,通过第三横梁的两端分别与相应副车架纵梁的控制臂安装架对应设置,第三横梁可以对相应副车架纵梁的控制臂安装架起到支撑作用,可以提升控制臂安装架的刚度,减小路面噪音通过控制臂安装架向乘员舱传递,从而降低车辆行驶噪音,进而提升车辆乘坐舒适性。


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    Title :

    Auxiliary frame of vehicle, vehicle body assembly of vehicle and vehicle


    Additional title:

    车辆的副车架、车辆的车身组件以及车辆


    Contributors:
    SI HAORAN (author) / XIE ZHIQIANG (author) / CHO SE-JIN (author) / BI RUJUN (author) / SI KAIZHONG (author)

    Publication date :

    2024-02-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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