The invention provides a reinforcing structure for the rear portion of a vehicle body, which comprises a C-pillar upper reinforcing plate and a C-pillar lower reinforcing plate, wherein the C-pillar upper reinforcing plate and the C-pillar lower reinforcing plate are arranged on the outer side of a C-pillar inner plate, the C-pillar upper reinforcing plate is of a three-way hollow structure and isprovided with three end parts, the first end part is connected with a B-pillar roof side rail reinforcing plate, the second end part is connected with the upper end of the C-pillar lower reinforcingplate, and the third end part is connected with a roof rear cross beam; the C-pillar lower reinforcing plate is of a hollow structure, and the lower end of the C-pillar lower reinforcing plate is connected with a rear wheel cover outer plate and located on the extending path of a shock absorber mounting plate reinforcing plate. The beneficial effects of the invention are that a cavity section structure is formed between the C-pillar upper reinforcing plate and the C-pillar inner plate, and the C-pillar upper reinforcing plate is welded with the rear sections of the C-pillar lower reinforcing plate, a back door hinge reinforcing plate and the B-pillar roof side rail reinforcing plate respectively, so that the C-pillar upper reinforcing plate forms an internal and external corresponding box-packed structure in two stress directions, namely, the Z direction and the Y direction, of the complete vehicle respectively, and the rigidity of the structure at the C-pillar upper reinforcing plateis effectively improved.

    本发明提供了一种用于车身后部的加强结构,包括设置在C柱内板外侧的C柱上加强板和C柱下加强板,C柱上加强板为三通中空结构,其具有三个端部,其中第一端部与B柱上边梁加强板相连接,第二端部与C柱下加强板的上端相连接,第三端部与顶盖后横梁相连接;C柱下加强板为中空结构,其下端与后轮罩外板相连接,且位于减震器安装板加强板的延伸路径上。本发明的有益之处在于:C柱上加强板与C柱内板之间形成了腔体截面结构,并分别与C柱下加强板、后背门铰链加强板和B柱上边梁加强板的后段焊接,因此C柱上加强板分别在整车Z向、Y向二个受力方向形成一个内外对应的盒装结构,有效提高了C柱上加强板处结构的刚度。


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    Title :

    Reinforcing structure for rear portion of vehicle body


    Additional title:

    一种用于车身后部的加强结构


    Contributors:
    LIAO YING (author)

    Publication date :

    2020-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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