The invention discloses an automobile front longitudinal beam structure and an automobile head-on collision front longitudinal beam energy absorption method. The automobile front longitudinal beam structure comprises a front longitudinal beam main body and a longitudinal beam front section, an insertion hole is formed in the front end face of the front longitudinal beam main body, and a limiting structure is arranged in the insertion hole; the rear end of the longitudinal beam front section can be inserted into the insertion hole and can be inserted into the limiting structure in the longitudinal direction of the vehicle body to be blocked and limited and cannot be continuously inserted; the rear end of the longitudinal beam front section is inserted into the insertion hole and fixedly connected with the front longitudinal beam body in a welded mode, and a set distance is arranged between the tail end of the welded longitudinal beam front section and the limiting structure. A crumple structure is arranged on the longitudinal beam front section, and when the rear end of the longitudinal beam front section is inserted into the limiting structure in the insertion hole, the crumple structure is located in the insertion hole; in the frontal collision process, a welding seam between the rear end of the longitudinal beam front section and the front longitudinal beam main body is completely crushed before the crushing structure begins to crush. Local collapse energy absorption of the front section of the longitudinal beam is completed in the inserting hole, it is guaranteed that the front longitudinal beam can stably and longitudinally crush and absorb energy, and safety is improved.

    本发明公开了一种汽车前纵梁结构及汽车正面碰撞前纵梁吸能方法。该汽车前纵梁结构包括前纵梁主体和纵梁前段;前纵梁主体的前端面上设置有插孔,插孔内设置有限位结构;纵梁前段的后端能够插入插孔内,并能够沿车身纵向一直插入到限位结构处被阻挡限位不能继续插入;纵梁前段的后端插入插孔内与前纵梁主体焊接固定连接,且焊接后纵梁前段的尾端与限位结构间隔设定距离;纵梁前段上设置有溃缩结构,当纵梁前段的后端插入到插孔内的限位结构处时,溃缩结构位于插孔内;在正面碰撞过程中,纵梁前段后端与前纵梁主体之间的焊缝在溃缩结构开始压溃之前被完全压溃。纵梁前段的局部溃缩吸能在插孔内完成,保证前纵梁能够平稳的纵向压溃吸能,提高安全性。


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    Titel :

    Automobile front longitudinal beam structure and automobile head-on collision front longitudinal beam energy absorption method


    Weitere Titelangaben:

    一种汽车前纵梁结构及汽车正面碰撞前纵梁吸能方法


    Beteiligte:
    HUANG WEI (Autor:in) / LI HUAXIANG (Autor:in) / CHANG ZUNHUI (Autor:in) / ZHU JIANGTAO (Autor:in)

    Erscheinungsdatum :

    17.09.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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