The invention relates to the technical field of vehicle accessories, in particular to a lower vehicle body longitudinal beam structure, a lower vehicle body and a vehicle. The lower vehicle body longitudinal beam structure comprises a first longitudinal beam section, a longitudinal beam middle section and a second longitudinal beam section, the first longitudinal beam section, the longitudinal beam middle section and the second longitudinal beam section are sequentially connected in a front-back penetrating mode, and the first longitudinal beam section comprises a front longitudinal beam and a front longitudinal beam bridging section. The two ends of the front longitudinal beam bridging section are connected with the front longitudinal beam and the longitudinal beam middle section respectively; the first center line of the front longitudinal beam horizontally deviates towards the outer side of the lower vehicle body relative to the vertical axis of the lower vehicle body to form an included angle. According to the technical scheme, the safety performance in the collision working condition is improved, collision energy is absorbed by the whole lower vehicle body, large local deformation of the front portion of the passenger compartment is avoided, therefore, the effective living space of the passenger compartment is guaranteed, and the safety performance of the whole vehicle is improved.

    本公开涉及车辆配件技术领域,尤其涉及一种下车身纵梁结构、下车体及车辆。该下车身纵梁结构包括第一纵梁段、纵梁中段以及第二纵梁段,所述第一纵梁段、所述纵梁中段以及所述第二纵梁段依次前后贯通连接,所述第一纵梁段包括前纵梁和前纵梁桥接段,所述前纵梁桥接段的两端分别连接所述前纵梁和所述纵梁中段;所述前纵梁的第一中心线相对于下车体的竖直轴线向下车体外侧水平偏移形成夹角。通过实施本公开的技术方案,提高在碰撞工况中的安全性能,实现碰撞能量由整个下车体吸收,避免乘员舱前部产生较大的局部变形,从而保障乘员舱有效的生存空间,提升整车安全性能。


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    Title :

    Lower vehicle body longitudinal beam structure, lower vehicle body and vehicle


    Additional title:

    一种下车身纵梁结构、下车体及车辆


    Contributors:
    AN ZHIGUO (author) / YAN LUPING (author)

    Publication date :

    2024-05-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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