Split welding type car door anti-collision beam

Abstract

The invention relates to a split welding type car door anti-collision beam, which is fixedly connected with an inner plate of a car door by welding spots, rivets or bolts. The anti-collision beam consists of an anti-collision beam outer plate and an anti-collision beam cover plate, wherein the anti-collision beam outer plate is manufactured by a bending machining technology, the cross section of the anti-collision beam outer plate is U-shaped and comprises a flange, and the anti-collision beam cover plate is welded on the flange of the anti-collision beam outer plate. A sealed space formed by the anti-collision beam outer plate and the cover plate is filled with light porous material. The anti-collision beam outer plate is divided into four sections according to performance requirement, i.e. an outer plate left first section, an outer plate left second section, an outer plate right second section and an outer plate right first section respectively from left to right, the four sections are connected into a whole in the manner of laser split welding, and the material can be a high-strength steel plate, aluminum plate or magnesium plate. Compared with the prior art, the split welding type car door anti-collision beam can extremely reduce the deformation of the car door when a car is collided, can enhance the anti-pit performance of the car door, and is simple in structure, and high in reliability.

Description

technical field [0001] The invention relates to a tailor-welded automobile part, in particular to a tailor-welded car door anti-collision beam installed on the inner side of the car door. Background technique [0002] Safety, energy saving, and environmental protection are the three major themes in the development of the automobile industry, and the issue of collision safety is the top priority. Major automobile companies have been working to improve the collision safety of automobiles. In the frontal collision, side collision, and offset collision of the car, the deformation of the door structure will greatly affect the degree of injury of the driver or passenger, and in serious cases will threaten the life safety of the driver or passenger. [0003] At present, in order to solve the above problems, the traditional solution is to install anti-collision bars or anti-collision plates on the inner panel of the car door to strengthen the strength and rigidity of the door panel,...

AI Technical Summary

Problems solved by technology

Obviously, it is unscientific to adopt the same thickness and material strength plate design scheme for each part of the anti-collision outer plate of the anti-collision beam, and it cannot give full play to the potential of the material, resulting in a certain waste

On the other hand, the traditional anti-collision beam structure is a hollow structure. To increase the energy absorption of the anti-collision beam, it is necessary to increase the plate thickness of the anti-collision beam parts or replace materials with higher strength levels. Causes an increase in the collision force and an increase in the mass of the anti-collision beam

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