Reinforced connecting structure of side wall assembly and bottom assembly of automobile

Abstract

The invention discloses a reinforced connecting structure of a side wall assembly and a bottom assembly of an automobile. The reinforced connecting structure comprises the side wall assembly, the bottom assembly and a reinforcing plate; and the reinforcing plate is arranged at a joint of the side wall assembly and the bottom assembly, a side wall connecting portion and a bottom connecting portion are respectively arranged at two ends of the reinforcing plate, the side wall connecting portion is fixedly connected to the side wall assembly, and the bottom connecting portion is fixedly connected to the bottom assembly. The reinforced connecting structure of the side wall assembly and the bottom assembly of the automobile has the advantages that the collision resistance of an automobile structure can be improved, and the safety of the integral automobile is improved.

Description

technical field [0001] The invention relates to a vehicle body structure, in particular to a reinforced connection structure of a side wall assembly and a bottom assembly of a vehicle body. Background technique [0002] With the continuous development of science and technology, the gradual improvement of living standards, and the increasing number of automobiles in society, the incidence of traffic accidents has also continued to increase. Traffic safety has become an important issue of people's life safety. [0003] Nowadays, vehicle safety design is an important research topic for automobile manufacturers. More and more manufacturers are continuously conducting R&D and improvement to improve the safety performance of the whole vehicle. Automobile manufacturing has entered an era of comprehensive focus on safety performance. [0004] The safety of the body structure plays a decisive role in the safety performance of the whole vehicle. In the process of collision, the body...

AI Technical Summary

Problems solved by technology

Generally speaking, the body structure mainly includes the front assembly, the side panel assembly, the bottom assembly and the rear assembly, among which the connection structure between the side panel assembly and the bottom assembly has the greatest impact on the anti-collision capability of the vehicle. Obviously, at present, most models adopt conventional connection structures or open connection structures at the connection between the side wall assembly and the bottom assembly, and the connection strength is weak. Once the side of the vehicle is hit, especially the rear of the side wall, it is very easy damage to body structure

In a series of crash tests, the existing connection structure between the side panel assembly and the bottom assembly often cannot meet the requirements of the above-mentioned Chinese new car evaluation regulations, resulting in substandard car body quality

In addition, when the front assembly and the rear assembly are collided, the existing body structure relies on the bottom assembly to absorb most of the impact load, and the impact load cannot be effectively transmitted to the side panel assembly, making the bottom assembly It is very easy to age or damage, resulting in a decrease in safety factor

[0005] Furthermore, when the vehicle is running, the force generated by the vibration of the vehicle will act on the side wall assembly and the bottom assembly, and the stress will concentrate at the connection between the side wall assembly and the bottom assembly. In addition to being weak, it also lacks the function of buffering and dispersing stress. It cannot effectively buffer the shock force, nor can it effectively disperse the impact force to the various parts of the bottom assembly, so it is easy to connect the side panel assembly and the bottom assembly. Fatigue cracking occurs at the place, which seriously affects the quality of the car body and the overall performance of the car body

Images