Rear apron board of automotive body

A technology for automobile body and rear apron, which is applied to vehicle parts, upper structure, upper structure sub-assembly, etc. It can solve problems such as easy vibration and noise, weak rear apron stiffness, etc., so as to improve local stiffness and rigidity performance , The effect of reducing the weight of the vehicle body

Inactive Publication Date: 2012-10-03
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the rigidity of the rear apron of the vehicle body is weak and easily causes vibration and noise, the invention provides a rear apron of the automobile body with high rigidity, light weight, and can reduce the vibration and noise level of the whole vehicle

Method used

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  • Rear apron board of automotive body
  • Rear apron board of automotive body

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Experimental program
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Embodiment Construction

[0015] The structure of the present invention will be further explained below in conjunction with the drawings.

[0016] See figure 1 A rear apron of an automobile body is shown. The plate body is a sheet metal member. A first "X"-shaped reinforcing rib 2 is provided on the lower left part of the plate body 1, and a second "X" shaped stiffener 3;

[0017] The middle and upper part of the plate body 1 is provided with a first transverse stiffener 4, and the middle and lower part of the plate body 1 are successively arranged with a second transverse stiffener 5, a third transverse stiffener 6 and an "S"-shaped stiffener from top to bottom. Tendons 7;

[0018] Between the first horizontal reinforcing rib 4 and the second horizontal reinforcing rib 5, a first vertical reinforcing rib 8 and a second vertical reinforcing rib 9 are provided. These two vertical reinforcing ribs and two horizontal reinforcing ribs are connected to form a " Mouth" shaped structure.

[0019] Furthermore, betw...

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Abstract

The invention relates to a rear apron board of an automotive body. The rear apron board comprises a board body and is characterized in that the left lower part of the board body is provided with a first X-shaped reinforcing rib, and the right lower part of the board body is provided with a second X-shaped reinforcing rib; the middle upper part of the board body is provided with a first horizontal reinforcing rib, the middle lower part of the board body is sequentially provided with a second horizontal reinforcing rib, a third horizontal reinforcing rib and an S-shaped reinforcing rib from top to bottom; and a first vertical reinforcing rib and the second vertical reinforcing rib are arranged between the first horizontal reinforcing rib and the second horizontal reinforcing rib. Because the rear apron board is provided with the first X-shaped reinforcing rib and the second X-shaped reinforcing rib, local rigidity of the point of the reinforcing ribs is improved, the additional arrangement of a reinforcing plate at the reinforcement point is avoided, the weight of the automotive body is reduced, and the cost is saved. Because the two horizontal reinforcing ribs and the two vertical reinforcing ribs are connected in a square shape, the static rigidity and the dynamic rigidity of a metal plate at the point are obviously improved, and the vibration resistance is improved.

Description

Technical field [0001] The invention belongs to automobile body parts, and particularly relates to a rear skirt panel of an automobile body. Background technique [0002] With the change of automobile consumption concepts, consumers have paid more and more attention to the NVH (Noise, Vibration, vibration; Harshness, discomfort) performance of the automobile, while paying attention to the traditional safety performance such as whether the body is cracked or not. Good or bad largely affects whether a car is selling well. Therefore, major automobile manufacturers are making great efforts to improve the NVH performance of automobiles. The common practice is to reduce the vibration of the vehicle excitation source or acoustic packaging on the car body to reduce the vibration and noise of the customer. It is often difficult or costly; while transmitting vibration and noise The structural optimization design on the body sheet metal panel (closure, roof, floor, front wall, rear apron a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D25/08
Inventor 昝建明舒玉光晏邵兰
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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