The invention belongs to the technical field of vehicle body structures and relates to a lower vehicle body frame structure. The lower vehicle body frame structure comprises a rear floor cross beam, a left rear longitudinal beam, a right rear longitudinal beam, a first rhombic frame, a second rhombic frame and a rear coaming, wherein the rear floor cross beam is fixedly connected between a front end of the left rear longitudinal beam and a front end of the right rear longitudinal beam; a rear end of the left rear longitudinal beam and a rear end of the right rear longitudinal beam are fixedly connected to the rear coaming, the first rhombic frame is fixedly connected among the rear floor cross beam, the left rear longitudinal beam and the right rear longitudinal beam, and the second rhombic frame is fixedly connected among the rear coaming, the left rear longitudinal beam and the right rear longitudinal beam; and the first rhombic frame is fixedly connected with the second rhombic frame. According to the lower vehicle body frame structure, collision force can be effectively transmitted, collision safety is guaranteed, and meanwhile bending and torsional rigidity of the whole vehicle is improved.

    本发明属于车身结构技术领域,涉及一种下车体框架结构。该下车体框架结构包括后地板横梁、左后纵梁、右后纵梁、第一菱形框架、第二菱形框架以及后围板,所述后地板横梁固定连接在所述左后纵梁的前端与所述右后纵梁的前端之间,所述左后纵梁的后端及所述右后纵梁的后端固定连接在所述后围板上,所述第一菱形框架固定连接在所述后地板横梁、所述左后纵梁及所述右后纵梁之间,所述第二菱形框架固定连接在所述后围板、所述左后纵梁及所述右后纵梁之间,所述第一菱形框架与所述第二菱形框架固定连接。该下车体框架结构可将碰撞力进行有效传递,保证碰撞安全性,同时提高整车的弯扭刚度。


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    Title :

    Lower vehicle body frame structure


    Additional title:

    下车体框架结构


    Contributors:
    LIU JINGMIN (author) / LIU MING (author) / LUO PEIFENG (author) / YUE XUESHENG (author) / YI ZEHUA (author) / ZHONG JIANQIANG (author)

    Publication date :

    2021-12-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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