The invention provides a cabin lower cross beam assembly and a pure electric vehicle. A vehicle body cabin lower cross beam and two front longitudinal beam castings connected with the two ends of thevehicle body cabin lower cross beam are included, the vehicle body cabin lower cross beam is a hollow beam, a first lap joint edge and a second lap joint edge are formed at the tail end of the vehiclebody cabin lower cross beam, the first lap joint edge is located above the second lap joint edge, and the first lap joint edge extends relative to the second lap joint edge; a third lap joint edge and a fourth lap joint edge are formed on the sides, close to the vehicle body cabin lower cross beam, of the front longitudinal beam castings, the third lap joint edge is located above the fourth lap joint edge, and the fourth lap joint edge extends relative to the third lap joint edge; the first lap joint edge is in lap joint with the third lap joint edge, and the second lap joint edge is in lap joint with the fourth lap joint edge. The vehicle body cabin lower cross beam can be assembled from top to bottom, so that the sealing performance is improved; the lap joint positions of the first lapjoint edge and the third lap joint edge are staggered relative to the lap joint positions of the second lap joint edge and the fourth lap joint edge, and the connecting strength of the vehicle body cabin lower cross beam and the front longitudinal beam castings is improved.

    本发明公开了一种机舱下横梁总成及纯电汽车,包括车身机舱下横梁和连接于车身机舱下横梁的两端的两个前纵梁铸件,车身机舱下横梁为空心梁,车身机舱下横梁的末端形成有第一、二搭接边,第一搭接边位于第二搭接边上方,第一搭接边相对于第二搭接边延长;前纵梁铸件的靠近车身机舱下横梁的一侧形成有第三、四搭接边,第三搭接边位于第四搭接边上方,第四搭接边相对于第三搭接边延长;第一搭接边与第三搭接边搭接,第二搭接边与第四搭接边搭接。车身机舱下横梁能够从上到下上件,提高密封性;第一、三搭接边的搭接处,相对于第二、四搭接边的搭接处错位,增加车身机舱下横梁与前纵梁铸件的连接强度。


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    Title :

    Cabin lower cross beam assembly and pure electric vehicle


    Additional title:

    机舱下横梁总成及纯电汽车


    Contributors:
    CHEN ZONGMING (author) / HE YUJUN (author) / YANG HONG (author) / LI YONGXIANG (author)

    Publication date :

    2021-03-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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