The invention belongs to the technical field of new energy automobiles, and particularly relates to a rear auxiliary frame structure of a lightweight electric automobile. Comprising a left front pull rod assembly mounting support (1), a left front pull rod assembly reinforcing supporting plate (2), a left rear upper control arm support (3), a front cross beam (4), a patch (5), a right rear upper control arm support (6), a right front pull rod assembly mounting support (7), a right longitudinal beam (8), a right supporting pipe (9), a lower swing arm connecting support (10), a rear cross beam (11), a left supporting pipe (12) and a left longitudinal beam (13). The light-weight electric automobile rear auxiliary frame structure is simple in structure, the rigidity and strength performance is met, the weight of a chassis is effectively reduced, the welding process difficulty is reduced, concentrated stress is released, the fatigue durability is improved, the overall rigidity and strength performance of a rear auxiliary frame is met, meanwhile, the NVH performance of an automobile and the modal frequency of the whole automobile are effectively improved, and the service life of the automobile is prolonged. The resonance problem is avoided, and the overall performance of the electric automobile is improved.

    本发明属于新能源汽车技术领域,更具体地说,是涉及一种轻量化电动汽车后副车架结构。包括左前拉杆总成安装支座(1)、左前拉杆总成加强撑板(2)、左后上控制臂支座(3)、前横梁(4)、贴片(5)、右后上控制臂支座(6)、右前拉杆总成安装支座(7)、右纵梁(8)、右支撑管(9)、下摆臂连接支座(10)、后横梁(11)、左支撑管(12)、左纵梁(13)。本发明所述的轻量化电动汽车后副车架结构,结构简单,既满足刚强度性能,又有效降低底盘重量,降低焊接工艺难度、释放集中应力、提高疲劳耐久度,在满足后副车架整体的刚强度性能的同时,有效改善车辆NVH性能以及整车模态频率,避免共振问题,提升电动汽车的整体性能。


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    Title :

    Rear auxiliary frame structure of light-weight electric automobile


    Additional title:

    一种轻量化电动汽车后副车架结构


    Contributors:
    TONG XINGBING (author) / LIU KE (author)

    Publication date :

    2023-07-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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