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A sleeve-type shape memory alloy automobile crash energy-absorbing box

A collision energy absorption and memory alloy technology, applied in bumpers and other directions, can solve the problems of high maintenance cost of energy absorption boxes and limited collision energy absorption effect, and achieve the effect of overcoming maintenance difficulties, novel structure and ensuring passenger safety.

Active Publication Date: 2017-04-12
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a sleeve-type shape memory alloy automobile collision energy-absorbing box to solve the problems of high maintenance cost and limited impact energy-absorbing effect of the existing energy-absorbing box

Method used

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  • A sleeve-type shape memory alloy automobile crash energy-absorbing box
  • A sleeve-type shape memory alloy automobile crash energy-absorbing box
  • A sleeve-type shape memory alloy automobile crash energy-absorbing box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The inner sleeve 1 of the energy-absorbing box and the outer sleeve 2 of the energy-absorbing box are nested together to form the main body of the energy-absorbing box. The end plate 5 is fixedly connected, the outer sleeve rear end plate 5 is fixedly connected with the guide stud 7, the inner sleeve rear end plate 8 is slidably connected with the guide stud 7, the nut 3 is threaded with the guide stud 7, and the shape memory alloy wire 6. One end is fixedly connected to the front end cover 9 of the outer sleeve, and the other end is fixedly connected to the rear end plate 8 of the inner sleeve;

[0020] The shape memory alloy wire 6 is under tension under the regulation of the nut 3;

[0021] The shape memory alloy wire is NiTi shape memory alloy wire, or copper base shape memory alloy wire, iron base shape memory alloy wire;

[0022] The shape memory alloy wires 6 are evenly or symmetrically arranged around the inner sleeve 1;

[0023] The lengths of the shape memor...

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Abstract

The invention relates to a sleeve type shape memory alloy car crash energy absorption box, and belongs to the technical field of car safety. An inner sleeve and an outer sleeve of the energy absorption box are in sleeving connection to form an energy absorption box body; the front end of the inner sleeve is fixedly connected with a front end plate of the inner sleeve; the rear end of the outer sleeve is fixedly connected with a rear end plate of the outer sleeve; a guide stud is fixedly connected to the rear end plate of the outer sleeve; the rear end plate of the inner sleeve is connected with the guide stud in a sliding manner; a nut is in threaded connection with the guide stud; one end of a shape memory alloy is fixedly connected with a front end cover of the outer sleeve, and the other end of the shape memory alloy is fixedly connected with the rear end plate of the inner sleeve. The sleeve type shape memory alloy car crash energy absorption box has the advantages that the structure is novel, the energy absorption effect can be improved effectively, the maintaining cost is reduced, and the safety of passengers in a passenger compartment is ensured.

Description

technical field [0001] The invention relates to a sleeve-type shape-memory alloy automobile collision energy-absorbing box, which belongs to the technical field of automobile safety. Background technique [0002] With the improvement of people's living standards, the number of cars is getting higher and higher, and the probability of traffic accidents is also increasing, so car safety is particularly important. When a car collides, in order to ensure that the occupants have enough living space, it is required that the front safety components of the car can absorb enough collision energy. [0003] As the main safety component of the front part of the vehicle body, the energy-absorbing box of the car must have appropriate rigidity, strength and reasonable structural design, and can fully absorb the collision energy according to the actual collision situation. Traditional energy-absorbing boxes use structural crushing to generate plastic deformation to absorb collision energy,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R19/34
CPCB60R19/34
Inventor 沈传亮吴志鹏孙国超郑国龙王国军郭守武武栎楠
Owner JILIN UNIV