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, the plurality of auxiliary frame longitudinal beams are connected with the first cross beam and the second cross beam; the third cross beam is located between the first cross beam and the second cross beam, and the third cross beam is connected with the multiple auxiliary frame longitudinal beams; the supporting frame is located between the third cross beam and the second cross beam and fixedly connected with the third cross beam. Therefore, the first cross beam, the second cross beam, the third cross beam and the auxiliary frame longitudinal beam are assembled in a matched mode, the auxiliary frame is of a frame type structure, the fatigue strength and rigidity of the auxiliary frame can be improved, the supporting frame is fixedly connected with the third cross beam, the supporting frame can support the third cross beam, and the longitudinal rigidity of the third cross beam in the front-back direction of the vehicle is improved. Therefore, the rigidity and the strength of the auxiliary frame in the front-back direction of the vehicle are improved, the power assembly can be effectively prevented from transmitting vibration and noise to a passenger compartment, and the riding comfort of passengers 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;多个副车架纵梁均与第一横梁、第二横梁连接;第三横梁位于第一横梁和第二横梁之间,第三横梁与多个副车架纵梁均连接;支撑架位于第三横梁和第二横梁之间,且支撑架与第三横梁固定连接。由此,通过第一横梁、第二横梁、第三横梁和副车架纵梁配合装配,使副车架形成框架式结构,能够提升副车架的疲劳强度和刚度,并且支撑架与第三横梁固定连接,支撑架可以支撑第三横梁,提升第三横梁在车辆前后方向上的纵向刚度,进而提升了副车架的在车辆前后方向上的刚度和强度,可以有效抑制动力总成向乘员舱传递振动和噪音,从而提升乘客的乘坐舒适度。


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

    Publication date :

    2023-12-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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