Reinforcing structure of automobile B pillar

Abstract

The invention provides a reinforcing structure of an automobile B pillar, and belongs to the technical field of an automobile. The reinforcing structure solves the problem to know how to improve the bending resistance performance of the automobile B pillar while the automobile body weight is reduced. The automobile B pillar comprises a B pillar inner plate and a B pillar outer plate; the reinforcing structure comprises a first reinforcing plate and a second reinforcing plate; the first reinforcing plate and the second reinforcing plate are arranged between the B pillar inner plate and the B pillar outer plate in the longitudinal direction; a first cavity is formed between the first reinforcing plate and the B pillar outer plate; a second cavity is formed between the second reinforcing plate and the B pillar outer plate; the first reinforcing plate and the second reinforcing plate are in mutual lap joint; and a third cavity is formed among the first and second reinforcing plates and the B pillar inner plate. The reinforcing structure has the advantages that only the first reinforcing plate and the second reinforcing plate are used; the automobile body weight is reduced; and meanwhile, the structures and the positions of the first reinforcing plate and the second reinforcing plate are reasonably designed, so that a plurality of cavity structures are formed in the automobile B pillar, and the bending resistance performance of the automobile B pillar is improved.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to a reinforcement structure for an automobile B-pillar. Background technique [0002] Collision safety has always been a performance that the automotive industry and consumers attach great importance to, and the country has also formulated corresponding regulations and requirements, among which side collision performance is one of the important indicators to measure vehicle collision safety. Motor vehicles have a center pillar, often referred to as a B-pillar, between the area of ​​the front door and the area of ​​the rear door. The function of the B-pillar is to support the roof of the motor vehicle on the underframe, and provide support for the front and rear side doors when necessary. [0003] For example, the Chinese patent [application number: 201520694657.2; authorized announcement number: CN205022690U] discloses a body side B-pillar, a vehicle body and a vehicle. Panel a...

AI Technical Summary

Problems solved by technology

[0004] In order to meet the strength requirements of the side collision, the B-pillar of the side wall of the above-mentioned body is provided with a B-pillar reinforcement plate and a B-pillar inner panel, and a reinforcing plate is added to the B-pillar reinforcement plate to achieve the purpose of strengthening the structure. However, the above-mentioned structure There are the following defects: the efficiency utilization rate of the sheet metal of the above-mentioned reinforced structure is low, so that the bending resistance can only be achieved by thickening the sheet metal, thereby increasing the weight of the vehicle body; A total of three layers, the structure is complex, and it is difficult to realize the welding process

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