The invention relates to a platform electric vehicle lower vehicle body structure, and relates to the technical field of automobile design and manufacturing. The platform-based electric vehicle lower vehicle body structure comprises a lower vehicle body platform beam frame, wherein the lower vehicle body platform beam frame comprises a pair of front longitudinal beams, wheel cover edge beams, threshold beams and rear longitudinal beams which are symmetrically arranged; a first cross beam, a second cross beam, a third cross beam and a fourth cross beam are sequentially arranged between the doorsill beams; a fifth cross beam and a sixth cross beam are sequentially arranged between the rear longitudinal beams; the rear end of the front longitudinal beam is of a herringbone structure, the outer side end of the herringbone structure is connected with the doorsill beam, and the inner side end of the herringbone structure is connected with the first cross beam; the front end of the central channel beam is connected with the front wall front cross beam, the central channel beam stretches across the first cross beam and the second cross beam, and the rear end stops to the third cross beam. According to the lower vehicle body structure, development of other vehicle types and installation of different battery pack sizes can be achieved, the platformization requirement is met, and collision loads are effectively transmitted with a small energy absorption space.

    本发明涉及一种平台化的电动车下车身结构,涉及汽车设计和制造的技术领域。本发明的平台化的电动车下车身结构包括下车身平台梁架,下车身平台梁架包括对称设置的一对前纵梁、轮罩边梁、门槛梁和后纵梁;门槛梁之间依次设置有第一、第二、第三和第四横梁,后纵梁之间依次设置有第五和第六横梁;前纵梁的后端为“人”字形结构,“人”字形结构的外侧端连接所述门槛梁,“人”字形结构的内侧端连接所述第一横梁;中央通道梁的前端连接前围前横梁,中央通道梁横跨所述第一和第二横梁、后端截止到第三横梁。本发明的下车身结构能够实现其他车型的衍变和不同电池包尺寸的安装,满足平台化要求,且以较小的吸能空间,有效传递碰撞载荷。


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    Title :

    Platform electric vehicle lower vehicle body structure


    Additional title:

    一种平台化的电动车下车身结构


    Contributors:
    FU JUNPENG (author) / XU ANPING (author) / SHEN TAISHENG (author) / LI YAWEI (author)

    Publication date :

    2022-06-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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