Automotive floor skirt beam for alternation type overlap joint soldering

Abstract

The invention relates to an edge beam for the floor of a vehicle adopting staggered overlap welding. The edge beam is formed by welding two sections, the two sections of edge beam mutually form X-shaped overlapping edges at the welded ended, and the two overlapping edges are welded together in a mutually staggered manner. By adopting the structural design, in the head on collision process of the vehicle, if the impact energy is strong, behind the welding spot of the overlapping edges of the edge beam, the staggered overlapping of the edge beam continues exerting the functions of transmitting and dispersing the energy, so as to improve the impact resistance and better guarantee the safety space of the passenger compartment. At the same time, through the X-shaped staggered overlapping of the edge beam, the bending rigidity and the torsional rigidity of the vehicle body can be enhanced, and the driving comfort can be ensured. The staggered overlapping structure does not need to adopt special techniques and technologies and increase the working procedure or material thickness, the shaping is simple, the structure is easy to realize, and is favorable for the assembly of the front floor and the rear floor.

Description

technical field [0001] The invention belongs to the automobile body structure technology, and in particular relates to the structure of the floor side beam. Background technique [0002] With the rapid growth of car ownership, traffic accidents are also increasing. Under the environment of consumers' rational consumption and the implementation of national mandatory collision regulations, the automobile industry attaches great importance to the safety performance of collisions. Therefore, by optimizing the body It is particularly important to improve the passive safety of the body design by structural design to meet the consumption needs of consumers and to adapt to new collision regulations. [0003] During the frontal collision, the impact force is transmitted to the left and right side beams through the front anti-collision beam, and the left and right side beams of the floor play an extremely important role in the process of energy transmission, dispersing the impact ener...

AI Technical Summary

Problems solved by technology

[0003] In the process of frontal collision, the impact force is transmitted to the left and right side beams through the front anti-collision beam, and the left and right side beams of the floor play an extremely important role in the energy transmission process, and the impact energy is dispersed to the rear. The strength cannot be guaranteed, and it is very easy for the engine in the cabin to invade the passenger compartment, endangering the life safety of the passengers

In response to this situation, at present, automobile manufacturers generally use complex-shaped floor side beams on the floor and add reinforcements, or increase the material thickness or use higher-strength materials to improve the anti-collision ability and deformation resistance of the car body. capacity, so there are some problems such as difficult forming of parts, complicated production process, high production cost and high scrap rate of parts

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