The invention relates to the technical field of automobile parts, in particular to an automobile comprising a rear floor longitudinal beam, and aims to solve the problem that an existing floor longitudinal beam cannot give consideration to cost and structural strength at the same time. According to the automobile comprising the rear floor longitudinal beam, the automobile comprises an automobile body, and the rear floor longitudinal beam comprises a supporting protection part, a bearing part fixedly connected to the tail of the supporting protection part and an energy absorption part fixedly connected to the tail end of the bearing part; the supporting and protecting part is used for protecting a vehicle body against deformation during rear collision, the bearing part is used for mounting a suspension part and/or a vehicle body frame, the energy absorption part is used for deforming during rear collision to absorb collision energy, and the rigidity of the bearing part is larger than that of the supporting and protecting part and that of the energy absorption part. According to the rear floor longitudinal beam assembly, the rear floor longitudinal beam assembly is divided into three parts, the three parts execute different functions, appropriate materials are selected according to the functions of all the parts, cost control is facilitated, and the weight of the rear floor longitudinal beam assembly is reduced.

    本发明涉及汽车零件技术领域,具体提供一种包括后地板纵梁的汽车,旨在解决后现有地板纵梁不能兼顾成本和结构强度的问题。在本发明的包括后地板纵梁的汽车中,所述汽车包括车身,所述后地板纵梁包括支撑保护部、固定连接在所述支撑保护部尾部的承载部以及固定连接在所述承载部尾端的吸能部;所述支撑保护部用于在后碰撞时保护车身不发生变形,所述承载部用于安装悬挂部件和/或车身框架,所述吸能部用于在后碰撞时变形以吸收碰撞能量,所述承载部的刚度大于所述支撑保护部和所述吸能部。本发明将后地板纵梁总成分割成三个部分,三个部分分别执行不同的职能,并依据各个部分的职能选择合适的材料,有利于控制成本,降低后地板纵梁总成重量。


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    Title :

    Motor vehicle comprising rear floor rail


    Additional title:

    包括后地板纵梁的汽车


    Contributors:
    WANG CONG (author) / LI GONGMING (author) / ZHAO CHANGHU (author)

    Publication date :

    2022-09-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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