Energy absorption box of automobile front anti-collision beam

Abstract

The invention discloses an energy absorption box of an automobile front anti-collision beam. The energy absorption box comprises a crumple energy absorption device and an air-pressure energy absorption device, wherein the crumple energy absorption device comprises a crumple pipe and a mounting plate which is fixedly connected with the front end face of the crumple pipe; the air-pressure energy absorption device comprises a barrel-shaped cylinder body which is coaxial with the central line of the crumple pipe; the rear end face of the crumple pipe is fixedly connected onto the front end face of the barrel-shaped cylinder body; the barrel-shaped cylinder body is internally provided with a piston; the front end face of the piston is fixedly connected with a piston rod; one end, far away from the piston, of the piston rod penetrates through the front end face of the barrel-shaped cylinder body and stretches into the crumple pipe, and is fixedly connected with the mounting plate; a pressure leaking hole communicated with an inner cavity of the barrel-shaped cylinder body is formed in the front end face of the barrel-shaped cylinder body; a connection hole is formed in the position, corresponding to the pressure leaking hole, of the piston; the connection hole can be used for communicating cavities, located on the two sides of the piston, of the barrel-shaped cylinder body. An energy absorption manner combining crumple energy absorption and air-pressure energy absorption is used for simultaneously converting collision energy, so that the conversion capability of an impact force is improved and the safety of vehicles is also improved.

Description

technical field [0001] The invention relates to an automobile anti-collision protection component, in particular to an automobile front anti-collision beam energy-absorbing box. Background technique [0002] The anti-collision beam, also known as the anti-collision beam, refers to the beam structure set up to protect the car from being less or less damaged in a collision, and the focus is to make the protected body less or less injured. The important design concept of the anti-collision beam is that a little force is applied to the whole body, that is, the role of dispersion force. From a functional point of view, the anti-collision beam structure is mainly responsible for resisting collision deformation and dispersing collision energy. The front anti-collision beam is located at the front end of the body, behind the bumper, and connected to the longitudinal beam through the energy-absorbing box. The first function of the anti-collision beam is to disperse energy to the en...

AI Technical Summary

Problems solved by technology

In the anti-collision beam, the energy-absorbing box plays a very important role. Most of the energy-absorbing boxes used in the existing automobiles are to transform and improve the internal structure and internal filling materials of the energy-absorbing box. This change The method has the following disadvantages: the ability of the energy-absorbing box to transform the impact force is poor, and the safety is reduced

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