The invention discloses a middle longitudinal beam, a frame and a vehicle, the middle longitudinal beam comprises a first beam body used for being connected with a front longitudinal beam and a rear longitudinal beam of the frame, and the lower end of the first beam body is provided with a first connecting surface used for being connected with a battery pack bolt; the second beam body comprises a main body part, a first extension part and a second extension part, the main body part is connected with the Y-direction outer side of the first beam body, the first extension part is arranged on the upper side of the main body part, the upper end of the first extension part is provided with a second connecting face used for being connected with a floor bolt of a vehicle body, and the second extension part is arranged on the side, away from the first beam body, of the main body part; a third connecting surface in bolted connection with a doorsill beam of the automobile body is arranged at the upper end; the first beam body and the second beam body are integrally formed by aluminum materials. The first beam body is fixedly connected with the battery pack, and the second beam body is fixedly connected with the vehicle body, so that the vehicle body, the frame and the battery pack are directly connected, the bending torsional rigidity of the whole vehicle is improved, the aluminum profile is light, and the lightweight design of the whole vehicle is met.

    本申请公开了一种中纵梁、车架和车辆,中纵梁包括:第一梁体,用于与车架的前纵梁和后纵梁连接,第一梁体的下端设有用于与电池包螺栓连接的第一连接面;第二梁体,包括主体部、第一延伸部和第二延伸部,主体部与第一梁体的Y向的外侧连接,第一延伸部设于主体部的上侧,且上端设有用于与车身的地板螺栓连接的第二连接面,第二延伸部设于主体部背离第一梁体的一侧,且上端设有用于与车身的门槛梁螺栓连接的第三连接面;其中,第一梁体和第二梁体为铝材一体成型。通过第一梁体与电池包固定连接,通过第二梁体与车身固定连接,实现车身、车架和电池包三者直接连接,提升整车弯曲扭转刚度,且铝型材质量轻,满足整车轻量化设计。


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    Title :

    Middle longitudinal beam, frame and vehicle


    Additional title:

    中纵梁、车架和车辆


    Contributors:
    SUN HAORAN (author) / KANG JIE (author) / SHU ZHANGJIE (author) / YANG WENJIE (author) / ZHANG TIE (author)

    Publication date :

    2025-01-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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