The invention discloses a vehicle body front cabin upper longitudinal beam structure and a connecting structure thereof, the vehicle body front cabin upper longitudinal beam structure comprises a cavity structure with a rectangular cross section inside, and the front part and the rear part of the cavity structure are respectively provided with a front lap joint part used for being fixedly connected with a vehicle body front end frame and a rear lap joint part used for being in lap joint and fixed with a vehicle body A column; the cavity structure comprises an avoiding structure used for avoiding tires and headlamps and a hinge installation support capable of being connected with the hood in a hinged mode through a hinge. A cavity structure with a rectangular cross section is arranged in the longitudinal beam, and the bending resistance and torsion resistance of the longitudinal beam can be effectively improved through the structural design. When a vehicle is collided or bears complex external force, the rectangular cavity can uniformly disperse stress, and structural damage caused by stress concentration is avoided, so that reliable support is provided for the front end of the vehicle body, the stability and safety of the whole structure of the vehicle body are guaranteed, and extrusion of collision deformation on living space of passengers in the vehicle is reduced.

    本发明公开了一种车身前机舱上纵梁结构及其连接结构,包括内部具有横截面为矩形的腔体结构,所述腔体结构的前部和后部分别设置有用于与车身前端框架固定连接的前搭接部,以及用于与车身A柱搭接固定的后搭接部;所述腔体结构包括用于避让轮胎和车前大灯的避让结构和可通过铰链与机罩铰接连接的铰链安装支架。内部具有横截面为矩形的腔体结构,这种结构设计能够有效提高纵梁的抗弯曲和抗扭转能力。在车辆发生碰撞或承受复杂外力时,矩形腔体可以均匀地分散应力,避免应力集中导致的结构损坏,从而为车身前端提供可靠的支撑,保障车身整体结构的稳定性和安全性,减少因碰撞变形对车内乘客生存空间的挤压。


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    Title :

    Vehicle body front cabin upper longitudinal beam structure and connecting structure thereof


    Additional title:

    一种车身前机舱上纵梁结构及其连接结构


    Contributors:
    CHANG CUIWEI (author) / YUAN LIANG (author) / HUANG TENGFEI (author) / ZHOU WEI (author) / JIANG LING (author)

    Publication date :

    2025-03-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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