Automotive body rear side wall assembly structure

Abstract

The invention relates to an automotive body rear side wall assembly structure, comprising a rear side wall inner skin, a rear wheel inner bulge, a rear wheel outer bulge and a rear safety belt retractor mounting support reinforcing plate as well as a rear side wall inner skin upper reinforcing plate, a rear side wall inner skin lower reinforcing plate and a rear side wall reinforcement. The automotive body rear side wall assembly structure provided by the invention has the technical effects that the phenomenon that clearance between triangle window glass and the side wall outer skin is excessive after the triangle window glass is mounted can be avoided, local modal stiffness and torsional stiffness of a rear side wall are improved; mounting point stiffness of the safety belt retractor on the side wall inner skin is improved; and riding comfortableness is improved.

Description

technical field [0001] The invention relates to an automobile body structure, in particular to an automobile body rear side wall assembly structure (left-right symmetrical structure). Background technique [0002] At present, the rear side panel assembly of the automobile body is mainly composed of the rear side panel inner skin, the inner and outer bulges of the rear wheels, and the rear safety belt retractor mounting bracket reinforcement plate. Carry out lap welding to form the side wall inner skin assembly, and finally weld the reinforcement plate of the rear seat belt retractor mounting bracket to the rear side wall inner skin to improve the rigidity of the seat belt retractor mounting point, but the above structure has the following problems . [0003] The inner skin parts of the rear side wall of the automobile body and the inner and outer bulges of the rear wheel are generally relatively large deep stamping parts. The triangular window of the inner skin part of the...

AI Technical Summary

Problems solved by technology

[0003] The inner skin parts of the rear side wall of the car body and the inner and outer bulges of the rear wheel are generally relatively large deep stamping parts. The triangular window of the inner skin part of the rear side wall is deformed, so that the gap between the glass and the outer skin of the side wall is larger after installation; the welding assembly of the rear side wall ( figure 1 ) The local modal stiffness is low, the torsional stiffness and bending stiffness of the whole vehicle are weak, and the stiffness of the installation point of the seat belt retractor on the inner skin of the side wall is weak. A closed cavity, the volume of the cavity is also large, so it is easy to produce "cavity effect" to affect NVH performance and reduce ride comfort

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