Mortise and tenon type side wall structure of all-aluminum alloy vehicle

Abstract

The invention discloses a full-aluminum alloy vehicle mortise and tenon type side wall structure. The structure is characterized in that a side wall comprises an outer contour formed by a side wall edge beam, a lower bottom beam and a wheel eyebrow frame, a plurality of cross beams and a plurality of stand columns are arranged in the outer contour, glass is installed in the upper area of a waist line cross beam, and an aluminum alloy panel is installed in the area between the waist line cross beam and the floor bottom beam; and a connecting structure between the floor bottom beam and the frame is designed in an area between the floor bottom beam and the lower bottom beam. Through the unique section design of the section bars, various mortise and tenon joints between the section bars are achieved, the section bars are further assembled and connected with the panel, the all-aluminum-alloy vehicle side wall structure module is formed, and the all-aluminum-alloy vehicle side wall structure module has the advantages of being light in weight, good in rigidity, easy to manufacture, low in manufacturing cost and the like; and the surface area between the floor bottom beam and the lower bottom beam is in assembly connection with the frame module, so assembly rigidity of the side wall is improved.

Description

technical field [0001] The invention relates to the technical field of new energy automobile manufacturing, in particular to a mortise and tenon type side wall structure of an all-aluminum alloy vehicle. Background technique [0002] The side panel of a car is an important structure installed on the frame and constitutes the passenger car's interior space. It has various requirements such as strength, rigidity, sound insulation, heat insulation, vibration prevention, anticorrosion, and sealing. The design of the side wall focuses on two aspects: 1) the function, performance and manufacturability of the side wall structure itself; 2) the connection mechanics and assembly of the side wall and the associated structure (especially the frame and roof). The side wall of a traditional bus uses a welded frame of section steel, and the outer skin of the steel frame has good mechanical properties. The welding process of the frame and skin is also mature. The main disadvantages are hea...

AI Technical Summary

Problems solved by technology

[0009] Documents 1 and 2 (CN201210129441.2 and CN201410021954.0) propose a structure that relies on an arc-shaped transfer beam and a set of gripping heads to connect the side wall and the roof module. The connection is very firm, but the size of the arc-shaped connecting beam is relatively small. Large and heavy, and the shape of the corner arc is not easy to change, which limits the flexibility of the shape; at the same time, the inner cavity at the lower end of the side wall column is socketed with the short column raised on the edge of the frame floor and locked with bolts. Realize the connection between the side wall and the frame, and the structure is simple, but the assembly interface between the two modules is a linear area, and the connection stiffness is insufficient; the key invention of document 3 (CN201610610642.2) is the first in the side wall and roof modules. The root and the last profile are designed with a profile floating edge specially used to overlap the front and rear faces, realizing the convenient lap assembly of the front and rear faces; documents 4 and 5 (CN201810986448.3 and CN201810986348.0) are aimed at all-aluminum alloy logistics vehicles The structure adopts more heterosexual joints on the outer contour of the side wall to realize the turning shape of the local contour, avoiding the difficulty of sharp turning and bending of the profile, but the structure is more complicated. The connection realizes the connection between the frame and the side wall in the planar area, which increases the connection stiffness of the side wall. However, due to the difficulty in aligning the mortise and tenon holes between the side wall and the frame, the assembly process is relatively high.

Images