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Energy-absorbing structure and energy-absorbing method with multiple protection functions

An energy-absorbing structure and protective function technology, applied in bumpers, vehicle components, vehicle safety arrangements, etc., can solve the problem that the collapsible energy-absorbing structure cannot be used multiple times, and achieve improved durability and economy. effect, enhance the effect of energy absorption

Active Publication Date: 2021-12-28
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above analysis, the embodiment of the present invention aims to provide an energy-absorbing structure with multiple protection functions to solve the problem that the existing collapsed energy-absorbing structure cannot be used multiple times

Method used

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  • Energy-absorbing structure and energy-absorbing method with multiple protection functions
  • Energy-absorbing structure and energy-absorbing method with multiple protection functions
  • Energy-absorbing structure and energy-absorbing method with multiple protection functions

Examples

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Effect test

Embodiment 1

[0035] A specific embodiment of the present invention, such as Figure 1-Figure 4 As shown, an energy-absorbing structure with multiple protection functions is disclosed, including an energy-absorbing core 1 and a shell 2, the energy-absorbing core 1 is set in the shell 2, and both the energy-absorbing core 1 and the shell 2 can generate Deformation, the deformation of the shell 2 can be transmitted to the energy-absorbing core 1 and cause the deformation of the energy-absorbing core 1, and the deformation of the energy-absorbing core 1 and the shell 2 can be superimposed for energy absorption.

[0036] Compared with the prior art, in the energy-absorbing structure provided by this embodiment, the shell is set outside the energy-absorbing core, and both the energy-absorbing core and the shell can be deformed, and the deformation of the internal energy-absorbing core is superimposed on the deformation of the shell The energy-absorbing effect increases the probability that the e...

Embodiment 2

[0053] A specific embodiment of the present invention discloses an energy-absorbing method, using the energy-absorbing structure with multiple protective functions in Example 1, the steps include:

[0054] The shell 2 is sleeved on the outer periphery of the energy-absorbing core 1, and the assembled energy-absorbing structure is installed on the equipment to be energy-absorbed (such as the bumper of a car).

[0055] It should be noted that the point of action of the external force acting on the casing 2 is the cylindrical surface of the casing 2 , not the end surface of the casing 2 .

[0056] When the equipment collides, the shell 2 deforms under the action of external force to absorb energy, and the energy-absorbing core 1 is deformed by the force of the shell 2, and the deformation of the shell 2 superimposes and absorbs energy.

[0057] When the shell 2 is deformed, the uniform cylindrical structure of the shell 2 is deformed, and the circular arc portion 14 in contact wi...

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Abstract

The invention relates to an energy-absorbing structure with multiple protection functions and an energy-absorbing method, which belongs to the technical field of safety protection and solves the problem that the collapsible energy-absorbing structure cannot be used multiple times in the prior art. The energy-absorbing structure with multiple protection functions of the present invention includes an energy-absorbing core and a shell, the energy-absorbing core is sleeved in the shell, both the energy-absorbing core and the shell can be deformed, and the deformation of the shell can be transmitted to the energy-absorbing core and cause deformation of the energy-absorbing core. The shell of the present invention is provided with an energy-absorbing core, and the deformation of the energy-absorbing core and the shell produces a superimposed energy-absorbing effect, which increases the probability that the energy-absorbing structure remains intact after a collision impact, and enables the energy-absorbing structure to withstand multiple It solves the problem that the collapsed structure must be replaced after one collision, improves the durability and economy of the energy-absorbing structure, and further improves the safety of products using the energy-absorbing structure.

Description

technical field [0001] The invention relates to the technical field of safety protection, in particular to an energy-absorbing structure and an energy-absorbing method with multiple protection functions. Background technique [0002] The energy-absorbing structure is a structure that is widely used in vehicle skins, and the energy-absorbing mechanism by means of material and structural deformation is a proven and widely used mechanism. Deformable energy-absorbing structures, also known as collapse structures, often experience significant plastic deformation after a collision, which makes the deformable energy-absorbing structures only experience one collision and must be replaced afterwards. [0003] Another way to improve the car body is to increase the rigidity and strength of the car body, which improves the firmness of the car structure, but in the face of more severe collisions, the rigid structure cannot play the role of energy absorption and buffering. Collision ener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R19/02B60R19/18
CPCB60R19/023B60R19/18
Inventor 元旭津洪广富周振康陈明继何镇宏李营方岱宁
Owner BEIJING INSTITUTE OF TECHNOLOGYGY