The invention belongs to the technical field of electric vehicle auxiliary frames, and provides an extruded profile and cast combined type electric vehicle front auxiliary frame which comprises a front cross beam, a longitudinal beam, a support, a rear cross beam, a middle cross beam and a butterfly-shaped beam, wherein the butterfly-shaped beam is arranged between the rear cross beam and the longitudinal beam, and the middle cross beam is arranged in the middle of the electric vehicle front auxiliary frame and connected with the butterfly-shaped beam; and the butterfly-shaped beam is integrally connected with the longitudinal beam, the middle cross beam and the rear cross beam. The butterfly-shaped beam enables the vehicle body mounting front point, the vehicle body mounting middle point, the stabilizer bar, the steering engine connecting point, the control arm front point and the control arm rear point to be mounted on the same structure, the number of parts is reduced, the assembly precision is improved, the advantage of high yield of extruded profiles is exerted, the fluidity and forming complexity of a casting process are utilized, the number of welding seams is reduced, and compared with an integrally cast auxiliary frame, the difficulty is low, the percent of pass is high, and the energy absorption effect is good.

    本发明属于电动车副车架技术领域,提供了一种挤压型材和铸造组合型电动车前副车架,包括前横梁、纵梁、支架、后横梁、中横梁以及蝶形梁,后横梁和纵梁之间有蝶形梁,中横梁在电动车前副车架中部并连接蝶形梁,蝶形梁与纵梁、中横梁及后横梁连接整体。本发明的优点蝶形梁将车身安装前点,车身安装中点,稳定杆、转向机连接点、控制臂前和后点安在一个结构上,减少零件数量,提高装配精度,发挥挤压型材成品率高的优点,利用铸造工艺的流动性,成型复杂,减少焊缝数量,比整体铸造副车架难度低,合格率高,吸能效果好。


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    Title :

    Extruded profile and cast combined type electric vehicle front auxiliary frame


    Additional title:

    一种挤压型材和铸造组合型电动车前副车架


    Contributors:

    Publication date :

    2021-05-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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