Side wall assembly and preparation method thereof

Abstract

The invention discloses a side wall assembly which is applied to an automobile with a frameless door. The side wall assembly is characterized in that the side wall assembly comprises a side wall outerplate, a roof side rail inner plate, a roof side rail reinforcing plate located between the side wall outer plate and the roof side rail inner plate, an upper window frame fixed to the side wall outer plate and used for being matched with door glass of the frameless door automobile, and a decorating part fixed to the outer side of the side wall outer plate and used for shielding the upper windowframe. The upper window frame and the decorating part are sheet metal parts, and the lower end of the decorating part is connected with the upper window frame through an edge covering process. The invention further discloses a manufacturing method of the side wall assembly, and the manufacturing method is applied to the side wall assembly. According to the side wall assembly and the preparation method thereof, the sheet metal parts are adopted as materials of the upper window frame and the decorating parts, the structural strength of the upper portion of the side wall assembly is improved, compared with plastic and carbon fibers, the cost is low, the deformation amount in extreme weather is small, the upper window frame is shielded through the edge covering process, and the integration degree of the appearance of the side wall assembly is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle body structures, in particular to a side wall assembly and a preparation method thereof. Background technique [0002] At present, the appearance of automobiles tends to be more and more simple and elegant. It is hoped that the appearance will be integrated, with as few parts as possible, so that the appearance will be full of technological sense. As a result, more and more models have begun to adopt frameless doors with hidden water-cut shapes. At the same time, in order to pursue the integration of side panels, hidden window frames will also be used. In the prior art, the concealed window frame is mostly realized by using a buckle plastic decoration on the outside of the window frame to cover the window frame. But this scheme has following defects: 1, even if the plastic trim is sprayed into the same color as the car paint, there is still a significant difference in appearance and texture from ...

AI Technical Summary

Problems solved by technology

However, this solution has the following defects: 1. Even if the plastic decorative parts are sprayed into the same color as the car paint, there is still a significant difference in appearance and texture from the side wall outer panels, which affects the perception of the side of the vehicle

2. Due to the constraints of the size of the injection molding machine, the plastic parts cannot be integrally formed. The A-pillar and the upper side beam decoration parts need to be matched separately, and due to the serious thermal expansion and contraction of the plastic parts, it is difficult to match the size

3. The bolts of plastic parts need to be opened on the side wall, which will affect the sealing performance of subsequent vehicles

4. In order to ensure the strength, it is necessary to design a reinforced plate or rib structure, which will occupy the space of the sheet metal cavity of the A-pillar and the upper side beam of the vehicle body, and have a great impact on the attributes such as collision and top pressure

5. The cost of plastic parts is higher

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