The invention discloses a car body integral type B column lower section doorsill connecting structure, and relates to the technical field of car manufacturing, the car body integral type B column lower section doorsill connecting structure comprises a B column inner plate and a side wall outer plate assembly, the B column inner plate is integral, a thermal forming process is adopted, the process is mature and reliable, and welding procedures brought by a sectional type are reduced; a step face is arranged on the lower section of the B-column inner plate, the design of the step face can relieve the situation that the forming face of a part is too deep, the problems that the forming depth of an integral B-column inner plate is large and forming is difficult are solved, meanwhile, redundant parts do not need to be added for installing a retractor, and light weight of a vehicle body is facilitated. According to the connecting structure, the number of parts is small, the integration degree is high, welding tools are saved, and welding procedures are reduced; the stepped structure design of the B column inner plate lower section is in matched lap joint with the threshold inner plate and the threshold reinforcing plate, the cavity section of the B column and the threshold is improved, and energy absorption of the B column lower section is facilitated.

    本发明公开一种车身整体式B柱下段门槛连接结构,涉及汽车制造技术领域,包括B柱内板和侧围外板总成,B柱内板为整体式,采用热成型工艺,工艺成熟可靠,减少了分段式带来的焊接工序;B柱内板下段设有一个阶梯面,阶梯面的设计可缓解零件成型面太深,解决整体式B柱内板的成型深度大,成型困难的问题,同时无需增加多余的零件来安装卷收器,有利于车身轻量化;该连接结构,零件数量少,集成度高,节省了焊接工装和减少了焊接工序;B柱内板下段的阶梯式结构设计与门槛内板和门槛加强板匹配搭接,提升了B柱与门槛的腔体截面,有利于B柱下段吸能。


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    Title :

    Vehicle body integral B column lower section doorsill connecting structure


    Additional title:

    一种车身整体式B柱下段门槛连接结构


    Contributors:
    GUO LI (author) / WU ZHENHUAN (author) / JIANG JIANZHONG (author) / XIN YUQI (author) / ZHANG JUN (author) / SONG RONGHUI (author)

    Publication date :

    2024-01-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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