The invention discloses an automobile body rear structure and an automobile. The automobile body rear structure comprises a rear longitudinal beam, a rear suspension fixing seat, a C column reinforcing ring, a D column, a rear gutter channel reinforcing ring and a rear wheel cover. The rear suspension fixing seat is welded and fixed on the rear longitudinal beam, and the rear suspension fixing seat and the rear longitudinal beam form an A-shaped beam frame structure; the rear wheel cover is correspondingly welded and fixed on the A-shaped beam frame structure; the C column reinforcing ring is correspondingly welded and fixed with the D column; the welded and fixed C column reinforcing ring and the D column are correspondingly welded and fixed on the A-shaped beam frame structure welded with the rear wheel cover; the rear gutter channel reinforcing ring is welded and fixed at the rear end of the A-shaped beam frame structure; the acting force of the chassis on a vehicle body is sealed into the high-strength and high-rigidity A-shaped beam frame structure, the dynamic rigidity of a fixed point of the chassis is improved, and the NVH performance is improved; the three C-shaped structures are linked with one another and form a complete closed-loop structure with the front vehicle body, the force transmission path is reasonable, and no stress concentration part exists.
本发明公开了一种车身后部结构及汽车,包括后纵梁、后悬挂固定座、C柱加强环、D柱、后流水槽加强环以及后轮罩;后悬挂固定座焊接固定于后纵梁上,两者构成A字型梁架结构;后轮罩对应焊接固定于A字型梁架结构上;C柱加强环与D柱对应焊接固定;焊接固定的C柱加强环与D柱对应焊接固定于焊接有后轮罩的A字型梁架结构上;后流水槽加强环焊接固定于A字型梁架结构后端;本发明将底盘对车身的作用力封闭至一个高强度、高刚度的A字形梁架结构内部,提升底盘固定点的动刚度,提升了NVH性能;3个C字形结构自身环环相扣,并且与前部车身形成一个完整的闭环结构,传力路径合理,无应力集中部位。
Automobile body rear structure and automobile
一种车身后部结构及汽车
2023-09-12
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |