Energy absorption box for vehicle

An energy-absorbing box and vehicle technology, applied in bumpers and other directions, can solve the problems of long length, low strength and structural energy-absorbing efficiency, and large occupation, achieve structural optimization, increase the layout of cabin parts and passenger space, shorten the effect of length

Inactive Publication Date: 2016-07-20
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the strength and structural energy absorption efficiency of the existing energy-absorbing box for vehicles is low, and the length is long and takes up a large space

Method used

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  • Energy absorption box for vehicle
  • Energy absorption box for vehicle
  • Energy absorption box for vehicle

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Experimental program
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Embodiment 1

[0026] Such as figure 2 and 3 As shown, a vehicle energy-absorbing box provided by a preferred embodiment of the present invention includes a plurality of hollow shells 1 nested together, and two adjacent hollow shells 1 are connected by energy-absorbing ribs 2 . The number of layers of the hollow shell 1 and the number of energy-absorbing ribs 2 can be determined according to the energy-absorbing requirements of the developed vehicle model. In addition, the energy-absorbing ribs 2 are provided with a first deformation induction groove 3, and the first deformation induction groove 3 is along the The radial extension of the hollow housing 1 is provided. The energy-absorbing box of the present invention is provided with a plurality of nested hollow shells 1, and two adjacent hollow shells 1 are connected together by energy-absorbing ribs 2, and the energy-absorbing box can be made into an integral part, two separate The body part (two parts separated along the axis of symmetr...

Embodiment 2

[0032] Such as Figure 4 As shown, the vehicle crash box of this embodiment is an improvement on the basis of Embodiment 1. The only difference between the two is that in order to better guide the deformation of the crash box when a collision occurs, the hollow shell of this embodiment The body 1 is provided with a second deformation inducing groove 4 , and the second deformation inducing groove 4 is annular arranged along the circumferential direction of the hollow shell 1 . Furthermore, there are a plurality of second deformation inducing grooves 4 distributed at intervals along the axial direction of the hollow casing 1 .

[0033] The second deformation inducing groove 4 can be a square groove or an arc groove or a groove body of other shapes, which can be set according to specific conditions.

[0034] In order to ensure the strength of the hollow shell 1 , the depth of the second deformation inducing groove 4 should not be greater than one third of the thickness of the ho...

Embodiment 3

[0036] Such as Figure 5 As shown, the only difference between the energy-absorbing box for vehicles of this embodiment and Embodiment 1 is that the hollow shell 1 of this embodiment is a hollow polyhedron, which can be a hollow tetrahedron, a hollow hexahedron, a hollow octahedron or other polygonal cross-sections. Hollow polyhedron, the present embodiment takes hollow tetrahedron as an example. In addition, the multiple hollow polyhedrons have the same structure and are nested and arranged parallel to each other.

[0037] In this embodiment, the structure connected by energy-absorbing ribs 2 between two adjacent hollow polyhedrons has the following modes:

[0038] Such as Figure 5 and Figure 6 As shown, the corner regions of two adjacent hollow polyhedrons are connected by energy-absorbing ribs 2, specifically, one end of the energy-absorbing ribs 2 is connected to the two connection surfaces of the hollow shell 1, and the other end of the energy-absorbing ribs 2 is con...

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Abstract

The invention relates to the technical field of vehicle collision safety and discloses an energy absorption box for a vehicle. The energy absorption box for the vehicle comprises a plurality of hollow shells nested jointly. Every two adjacent hollow shells are connected through energy absorption ribs so that an integral structure or a split structure can be achieved. The energy absorption ribs are provided with first deformation inducing slots which are formed by extending in the radial direction of the hollow shells. The energy absorption box for the vehicle is provided with the multiple nested hollow shells, every two adjacent hollow shells are connected together through the energy absorption ribs, the energy absorption ribs are provided with the first deformation inducing slots, and when a collision happens, the first deformation inducing slots guide collapse deformation of the hollow shells and the energy absorption ribs, so that energy is absorbed. By means of the energy absorption box for the vehicle, the problems that an energy absorption box is low in strength and energy absorption efficiency and is bent under crush are solved effectively, and the safety is improved in case of a head-on collision of the vehicle. Meanwhile, the structural optimizing of the energy absorption box is achieved, the length of the energy absorption box is reduced, the layout space of cabin components and the riding space of passengers are expanded, and good economic benefits and social benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of automobile collision safety, in particular to a vehicle energy-absorbing box. Background technique [0002] In the prior art, the energy-absorbing box is one of the most important energy-absorbing elements at the front of the vehicle body, which can absorb the kinetic energy of the collision through the plastic deformation of the material during the frontal collision. The energy absorption characteristics and deformation mode of the energy-absorbing box determine the deceleration response and force transmission path of the vehicle during the frontal collision, and the energy absorption performance during the frontal collision has an important impact on the safety performance of the frontal collision. At present, how to improve the crashworthiness and energy-absorbing efficiency of the structure of the energy-absorbing box and increase the layout of the cabin parts and the space for the occupant is a key t...

Claims

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Application Information

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IPC IPC(8): B60R19/02
CPCB60R19/02B60R2019/026
Inventor 蔡永周陈琪岳鹏欧阳俊
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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