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Aluminum alloy crash box for automobile

A technology of aluminum alloy and energy-absorbing box, which is applied to bumpers and other directions, can solve problems such as poor energy-absorbing performance, achieve light weight, reduce car collision damage and personnel injuries, and improve energy-absorbing performance

Active Publication Date: 2016-01-13
重庆凯瑞特种车有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its energy absorption performance is poor

Method used

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  • Aluminum alloy crash box for automobile
  • Aluminum alloy crash box for automobile

Examples

Experimental program
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Effect test

Embodiment 1

[0027] The aluminum alloy energy-absorbing box for automobiles of the present invention comprises an aluminum alloy energy-absorbing box body 1, the aluminum alloy energy-absorbing box body 1 is a regular polygonal sleeve, and the cross-section of the aluminum alloy energy-absorbing box body 1 is a regular polygon, preferably Regular hexagon, regular octagon or regular dodecagon, figure 1 The middle is a regular hexagon, the side length of the aluminum alloy energy-absorbing box body 1 is 15mm-50mm, the wall thickness is 1.5-3.0mm, and the height is 140-240mm. The edges are connected by arc transitions, and the transition arc radius is 10mm -20mm. Ensure that the edge does not crack during the compression process. The aluminum alloy energy-absorbing box body 1 is extruded. And heat treatment is carried out under certain process conditions, so that it has excellent impact energy absorption performance and compression deformation mode.

[0028] The aluminum alloy energy-absor...

Embodiment 2

[0030] Others are the same as in Example 1, except that: the aluminum alloy energy-absorbing box body 1 is filled with at least two long-fiber-reinforced thermoplastic composite material blocks 2 of different densities, and the long-fiber-reinforced thermoplastic composite material blocks 2 of different densities are radially Space padding. That is, the cross-section of the long fiber reinforced thermoplastic composite material block 2 is the same as that of the aluminum alloy energy-absorbing box body 1, and the central axis of the long fiber reinforced thermoplastic composite material block 2 is on the same line as the central axis of the aluminum alloy energy-absorbing box body 1 superior.

[0031] Preferably: the aluminum alloy energy-absorbing box body 1 is filled with two kinds of long-fiber-reinforced thermoplastic composite material blocks 2 with different densities at intervals. Three blocks each of long fiber reinforced thermoplastic composites of two different dens...

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Abstract

The invention discloses an aluminum alloy crash box for an automobile. The aluminum alloy crash box for the automobile comprises an aluminum alloy crash box body, wherein the aluminum alloy crash box body is filled with long fiber reinforced thermoplastic composite material blocks; and connecting plates are arranged at the two ends of the aluminum alloy crash box body. Preferably, two types of long fiber reinforced thermoplastic composite material blocks with different densities are arranged in the aluminum alloy crash box body at intervals. According to the invention, as the aluminum alloy crash box body is combined with the long fiber reinforced thermoplastic composite material blocks, the energy absorption properties of the aluminum alloy crash box body and the long fiber reinforced thermoplastic composite material blocks are organically combined and composite materials with a plurality of densities are arranged in the aluminum alloy crash box body at intervals to control the deformation mode of the crash box; therefore, the energy absorption potential of the crash box is maximized. Automobile crash damage and personal injury can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an automobile energy-absorbing box. Background technique [0002] As an important part of automobile passive safety, the energy absorbing box absorbs the energy transmitted by the anti-collision beam through a series of deformations when a collision accident occurs, and transfers the energy to other body safety components in time when the energy exceeds its carrying range, so as to reduce the collision The damage to the vehicle body and the injury to personnel caused by the accident. With the increasing number of automobiles, automobile safety accidents are increasing day by day, and the passive safety technology of automobile driving has also attracted more and more attention. [0003] The traditional energy-absorbing box is composed of steel sheet metal parts. This kind of energy-absorbing box is heavy. In recent years, most of the energy-absorbing boxes developed are made...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R19/03
CPCB60R19/03
Inventor 张钧萍周佳王光耀马鸣图
Owner 重庆凯瑞特种车有限公司
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