Framework structure at rear part of automobile body

Abstract

The invention relates to a framework structure at the rear part of an automobile body and belongs to the technical field of automobile body structures; the framework structure comprises a C-column annular beam structure and a D-column annular beam structure which are connected through multiple channels, the C-column annular beam structure comprises a multi-channel force transmission component, and a rear shock absorber is mounted on the multi-channel force transmission component. The upper portion of the multi-channel force transmission component is connected with the annular beam structures of the column C and the column D to form an upper force transmission channel, and the lower portion of the multi-channel force transmission component is connected with a floor cross beam to form a lower force transmission channel. According to the invention, the structure has the following beneficial effects: by arranging a multi-path and gridding force transmission and dispersion channel, an effective net-shaped beam bearing structure is constructed; on the premise that the weight of the vehicle body is not increased, the overall rigidity and strength of the rear portion of the vehicle body can be remarkably improved, the bad performance of resonance, abnormal sound and the like in the running process of the vehicle is avoided, and driving comfort and operation feeling are improved.

Description

technical field [0001] The invention relates to the technical field of automobile body structures, in particular to an automobile body rear frame structure. Background technique [0002] The rear structure of the car is an important part of the car body. It needs to provide the necessary bending, torsional stiffness and strength for the whole car, and it will bear the upward force from the rear wheel shock absorber and the opening and closing of the back door. The downward force generated during the process. Therefore, in order to effectively decompose and absorb the above-mentioned forces, and provide the necessary torsional rigidity and strength for the entire vehicle, it is usually necessary to strengthen the rear structure of the vehicle. [0003] Viewed from the side of the body, the rear of a common SUV model usually consists of a C-pillar ring beam structure consisting of a C-pillar-rear shock absorber-floor beam and a D-pillar ring beam structure consisting of a tai...

AI Technical Summary

Problems solved by technology

Due to the unreasonable arrangement of the rear structure of the existing car body, it cannot effectively decompose and withstand the impact load from the rear suspension, especially in the process of driving in curves and lane changes, it is easy to appear "flicking" and other phenomena, which cannot meet the increasing demands. The pursuit of driving comfort and handling

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