The invention discloses a vehicle front lower protection cross beam which is provided with a middle section located in the middle in the length direction of the vehicle front lower protection cross beam, and a strengthening transition section, a strengthening section, a far-end transition section and a far-end section located at the end of the vehicle front lower protection cross beam are sequentially arranged from the middle section to the two ends respectively. The wall thickness of the strengthening section is larger than that of all other sections; the strengthening section, the middle section and the far-end section are each of an equal-thickness structure with the constant wall thickness in the length direction. The strengthening transition section and the far-end transition section are each of a variable-thickness structure, and the wall thickness of the variable-thickness structure changes continuously in the length direction. In addition, the invention further discloses a vehicle front lower protection cross beam assembly and a vehicle. The front lower protection cross beam of the vehicle has the advantages of being simple in structure, capable of being locally strengthened, obvious in light weight advantage and the like, light weight of the vehicle body is achieved under the condition that the safety performance requirement is met, and the front lower protection cross beam has good popularization prospects and application value.

    本发明公开了一种车辆前下防护横梁,其中,沿着车辆前下防护横梁的长度方向其具有位于中部的中间段,自所述中间段向两端分别依次还具有强化过渡段、强化段、远端过渡段和位于车辆前下防护横梁的端部的远端段;其中,强化段的壁厚大于其他所有段;其中,强化段、中间段和远端段均为沿着长度方向其壁厚恒定不变的等厚度结构;其中,强化过渡段和远端过渡段均为沿着长度方向其壁厚连续变化的变厚度结构。此外本发明还公开了一种车辆前下防护横梁组件和一种车辆。本发明所述的车辆前下防护横梁具有结构简单、可局部强化且轻量化优势明显等特点,在满足安全性能要求的情况下实现车身轻量化,具有良好的推广前景和应用价值。


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    Title :

    Vehicle front lower protection cross beam, assembly and vehicle


    Additional title:

    一种车辆前下防护横梁、组件及车辆


    Contributors:
    GUO YUN (author) / SHI LEI (author) / YUAN JINGXI (author) / GU HAO (author) / XIAO HUA (author) / WU YANJUN (author)

    Publication date :

    2021-12-03


    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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