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Lightweight vehicle body structure

A light-weight, body-based technology, applied in superstructure, vehicle parts, transportation and packaging, etc., can solve the problems of heavy weight and high cost, and achieve the effect of low cost, reduced weight and good body safety

Pending Publication Date: 2019-05-10
SHANGHAI DONGJIE POLYMER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above three body structures all have different defects: the first and second body structures are heavier, and the third body structure costs more

Method used

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  • Lightweight vehicle body structure
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  • Lightweight vehicle body structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as Figure 1-5 As shown, it is a structural schematic diagram of an MPV lightweight body structure provided in this embodiment, which includes an upper body panel assembly 1 and a lower body assembly 2, and the upper body panel assembly 1 is welded by stamping sheet metal parts formed; the lower vehicle body assembly 2 includes a composite body frame made of aluminum alloy profiles and non-metallic materials (as shown in Figures 3-5, the two parts are bonded to each other in this embodiment). The covering parts on the body surface are made of non-metallic parts, and the non-metallic parts are fixed on the body frame by gluing, bolting or riveting. The upper body panel assembly 1 and the lower body assembly 2 are connected by bolt connection or riveting.

[0046] The upper body panel assembly 1 and the lower body assembly 2 are connected by means of bolting, gluing or riveting. The non-metallic parts are fixed on the body frame by bolting, gluing or riveting. The...

Embodiment 2

[0050] Figure 6 , 7 A structural schematic diagram of the lightweight body structure of the SUV provided in this embodiment, Figure 4 The place covered by the dot matrix is ​​a non-metallic part.

Embodiment 3

[0052] Figure 8 , 9 The structural schematic diagram of the lightweight body structure of the single-row trolley provided in this embodiment, Figure 6 The place covered by the dot matrix is ​​a non-metallic part.

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PUM

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Abstract

The invention discloses a lightweight vehicle body structure, comprising an upper vehicle body inner plate assembly and a lower vehicle body assembly and is characterized in that the upper vehicle body inner plate assembly is formed by welding stamping sheet metal parts, the lower vehicle body assembly comprises a vehicle body framework formed by compositing an aluminum alloy profile and a non-metal material, and a covering piece on the surface of a vehicle body is a non-metal piece; the non-metal piece is fixed on the vehicle body framework in a gluing, bolt connection or riveting connectionmanner; and the upper vehicle body inner plate assembly and the lower vehicle body assembly are connected in a bolt connection or riveting mode. The weight reduction effect is obvious, the light weight index of the vehicle body is improved, and the weight is reduced by 30%-35% or above; the strength of the sheet metal inner plate framework is higher than that of aluminum alloy, the process is mature, the welding precision is high and the cost is low; Compared with a sectional material framework, transition pieces are not needed for interior decoration connection, and simpleness and convenienceare achieved. The lightweight vehicle body structure is suitable for passenger vehicles, micro-surfaces, light passengers, passenger cars, pickup trucks, logistics vehicles and other vehicle types.

Description

technical field [0001] The invention relates to a lightweight vehicle body structure, which belongs to the technical field of automobile manufacturing. Background technique [0002] There are mainly three types of existing body structures: [0003] 1. The inner panel assembly of the upper car body adopts steel sheet parts, and the lower car body assembly also uses steel plate parts, and the upper and lower car body assemblies are connected by welding; [0004] 2. The upper body panel assembly and the lower body assembly are all made of iron skeleton made of profiles, and the outer cladding parts are made of non-metallic parts; [0005] 3. The inner panel assembly of the upper body is made of aluminum plate, the lower body assembly is made of aluminum plate and aluminum alloy frame, and the upper and lower body assemblies are connected by MIG welding or cold connection. [0006] There are different defects in the above three body structures: the weight of the first and seco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D29/00
Inventor 刘东立
Owner SHANGHAI DONGJIE POLYMER MATERIAL