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car crash box

A technology of energy-absorbing boxes and automobiles, which is applied to bumpers and other directions, can solve the problems of single energy absorption, low specific energy absorption, and high weight, and achieve the effect of comprehensive impact resistance and high energy absorption

Active Publication Date: 2017-12-12
WUHU LION AUTOMOTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional energy-absorbing box structure is mainly composed of cylindrical sheet metal parts that are easy to crush and fold, and the energy-absorbing function is single and the effect is poor
The currently commonly used energy-absorbing box structure has a pre-deformation design on its box body to improve its energy-absorbing deformation characteristics, but the energy-absorbing box made of metal sheet metal parts has a low specific energy absorption due to its high weight

Method used

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Embodiment Construction

[0019] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.

[0020] Such as figure 1 with Figure 4 As shown, an automobile crash box according to the present invention includes a crash box body 3 , a connecting flange 1 and connecting lugs 4 . The energy-absorbing box body 3 of the automobile energy-absorbing box is made of carbon fiber composite material, and the end edge of the energy-absorbing box body 3 has chamfers.

[0021] Specifically, as figure 1 with Figure 4 As shown, the energy-absorbing box body 3 is a cylindrical structure with openings at both ends and a hollow interior, and the cross-section of the energy-absorbing box body 3 is polygo...

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Abstract

The invention discloses an automobile energy absorption box. The automobile energy absorption box comprises an energy absorption box body made of carbon fiber composite, and chamfer angles are formed in the margin of the energy absorption box body ends. The automobile energy absorption box has the advantages that lightweight effect is achieved with the adoption of carbon fiber composite, the weight of the energy absorption box with carbon fiber composite is 52% to 69% less than the common metal energy absorption box, and the comprehensive impact resistance ability and energy absorption effect are high.

Description

technical field [0001] The invention belongs to the technical field of automobile collision safety, and in particular relates to an automobile energy-absorbing box structure. Background technique [0002] In order to avoid the deformation of the front longitudinal beam when the car has a mild frontal collision, an energy absorbing box is usually installed between the front bumper and the front longitudinal beam of the car. When the impact energy of the collision exceeds the energy absorption capacity of the front bumper, the energy absorbing box begins to break down. Crushing deformation to absorb part of the impact energy, thereby avoiding the impact energy directly acting on the front longitudinal beam and causing its deformation. The traditional energy-absorbing box structure is mainly composed of cylindrical sheet metal parts that are easy to crush and fold, and the energy-absorbing function is single and the effect is poor. The currently commonly used energy-absorbing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R19/18
CPCB60R19/34
Inventor 陈大华秦玉林邓裕文熊建民
Owner WUHU LION AUTOMOTIVE TECH CO LTD
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