Compound energy absorption box and automobile with same

Abstract

The invention discloses a compound energy absorption box. A buffering box used for damping is arranged on a box body capable of being crushed and deformed in the impact direction, the box body is connected with the buffering box through a connecting part, the connecting part and the buffering box are coaxially arranged, and the axis of the connecting part and the axis of the buffering box are parallel to the impact direction. When the box body is crushed and deformed in the impact direction, the box body drives the buffering box to be crushed and deformed in the impact direction through the connecting part, the buffering box is a sealed box body, and a pressure relief hole for discharging gas in the buffering box outwards is formed in the buffering box. After being impacted, the box body is crushed and deformed in the impact direction, and the buffering box is driven by the connecting part to be synchronously crushed and deformed in the impact direction. Due to the fact that the buffering box is a sealed box body, when the crushing deformation speed of the buffering box is too high, the outward exhaust speed of gas is not synchronous with the compression deformation speed of the buffering box, the interior of the buffering box is in a high-pressure state within a short time, instant large-amplitude deformation is not prone to occurring, the buffer effect on collision is achieved, the collision process is more stable, and the safety of an automobile during collision is improved.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a compound energy-absorbing box and an automobile with the energy-absorbing box. Background technique [0002] From the end of the last century to the beginning of this century, the automobile industry developed rapidly in the world, and my country's automobile industry is also in full swing. Gradually, the number of automobiles in my country has reached a huge scale. According to incomplete statistics, in 2020, the number of motor vehicles nationwide will reach 372 million, including 281 million cars, and 456 million motor vehicle drivers, including 418 million car drivers. Behind such a huge number, many traffic safety accidents will inevitably occur, so the safety of automobiles is a very serious key issue. [0003] As a small part of the front of the car, the crash box plays an important role in the safety of the car. Therefore, in order to improve the safety performance of autom...

AI Technical Summary

Problems solved by technology

Simply increasing the thickness of the energy-absorbing box or changing its shape design can improve its impact resistance to a certain extent, but the impact process is very unstable and easily causes a secondary impact. Therefore, this type of energy-absorbing box is still It is not enough to apply to the collision safety problem of real cars, so it needs to be solved urgently

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