The invention discloses a vehicle body rear frame structure which is provided with a plurality of vertical ring structures, and each vertical ring structure is formed by connecting a cross beam of a top cover frame assembly, a cross beam of a rear floor frame assembly and a beam column, extending up and down, of a rear side wall frame assembly. The at least two vertical ring structures are arranged in a spaced mode and intersect at the position of a rear side wall frame assembly, and the at least two vertical ring structures arranged in the spaced mode are connected through the other vertical ring structure. Different positions of the top, the bottom and the side portions of the vehicle body can be reinforced, so that loads borne by the top, the bottom, the side portions and the rear portion of the vehicle body can be dispersed to the whole vehicle body in a penetrating mode along a plurality of paths, structural cracking caused by the fact that vertical ring structures cannot conduct force in a penetrating mode is avoided, and overall deformation of the vehicle body is reduced. The rigidity, the strength and the modal performance of the vehicle body rear frame structure are improved, the situation that too many independent local reinforcing structures are arranged for the vehicle body rear frame structure is avoided, and the structure is simplified.
本发明公开了一种车身后部框架结构,具有多个立环结构,立环结构由顶盖框架总成的横梁、后地板框架总成的横梁和后侧围框架总成的上下延伸的梁柱连接而成;至少两个立环结构之间间隔设置,至少两个立环结构相交于后侧围框架总成处,且至少两个间隔设置的立环结构之间通过另一立环结构连接。能够对车身顶部、底部和侧部的不同位置进行加强,使得车身顶部、底部、侧部和后部承受的载荷能够沿多个路径贯通地分散至整个车身,避免因立环结构之间不能贯通传力导致结构开裂,减小车身整体变形,增加车身后部框架结构的刚度、强度及模态性能,避免为车身后部框架结构设置过多独立的局部加强结构,简化结构。
Vehicle body rear frame structure
车身后部框架结构
2021-12-17
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Frame structure for a motor vehicle, rear frame structure, and vehicle body
Europäisches Patentamt | 2015
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