The invention discloses a multi-section type double-layer thin-wall energy absorption device, which comprises an outer-layer thin-wall energy absorption structure and an inner-layer thin-wall energy absorption structure, wherein the outer-layer thin-wall energy absorption structure is of a spiral curved surface structure; the inner-layer thin-wall energy absorption structure is composed of an inner-layer upper thin-wall structure, an inner-layer middle thin-wall structure and an inner-layer lower thin-wall structure; and the outer-layer thin-wall energy absorption structure and the inner-layerthin-wall energy absorption structure share the upper end face and the lower end face. Through cooperative buffering of the inner-layer thin-wall energy absorption structure and the outer-layer thin-wall energy absorption structure and multi-stage buffering of the inner-layer thin-wall energy absorption structure, the specific energy absorption of the energy absorption device can be improved, andthe initial peak force of the energy absorption device can be reduced. Meanwhile, the inner-layer thin-wall energy absorption structure is designed to be of a multi-section structure, the deformationdirection of the energy absorption device can be guided in the collision process, it is guaranteed that the energy absorption device has a good deformation mode, and thus it is guaranteed that the energy absorption device has good buffering performance.

    本发明公开了一种多段式双层薄壁吸能装置,包括外层薄壁吸能结构和内层薄壁吸能结构;外层薄壁吸能结构为螺旋状曲面结构;内层薄壁吸能结构由内层上薄壁结构、内层中间薄壁结构和内层下薄壁结构组成;外层薄壁吸能结构与内层薄壁吸能结构共用上端面与下端面;本发明通过内、外两层薄壁吸能结构的协同缓冲以及内层薄壁吸能结构的多级缓冲不但能提高吸能装置的比吸能,还能降低吸能装置的初始峰值力;同时,内层薄壁吸能结构设计成多段式结构,在发生碰撞时能引导吸能装置的变形方向,保证吸能装置具有良好的变形模式,从而确保吸能装置具备良好的缓冲性能。


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    Title :

    Multi-section type double-layer thin-wall energy absorption device


    Additional title:

    一种多段式双层薄壁吸能装置


    Contributors:
    LIU XIN (author) / CHEN DE (author) / GONG MIN (author)

    Publication date :

    2020-09-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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