Automobile B-column capable of realizing multi-axis concentrated energy absorption

Abstract

The invention discloses an automobile B-column capable of realizing multi-axis concentrated energy absorption. The automobile B-column comprises a B-column outer plate, a micro-cell filling layer, anda B-column inner plate. The micro-cell filling layer is a stereoscopic structure formed by successively arranging and combining multiple cell bodies in an X direction and a Y direction. The cell bodyis formed by connecting two symmetrical sub-cells. The sub-cell comprises a force transmitting part, a first vertical energy absorption part, a second vertical energy absorption part, a first horizontal energy absorption part, and a second horizontal energy absorption part. One end of the force transmitting part is connected with the first vertical energy absorption part through a first horizontal force transmitting plate, and the other end is connected with the first horizontal energy absorption part. The first vertical energy absorption part is connected with the second vertical energy absorption part. An included angle between the first vertical energy absorption part and the second vertical energy absorption part is 135-165 degrees. The first horizontal energy absorption part is connected with the second horizontal energy absorption part through a second horizontal force transmitting plate. The other end of the second horizontal energy absorption part is connected with the secondvertical energy absorption part. The automobile B-column is low in initial peak value during a collision process, stable in energy absorption process, and good in energy absorption effect.

Description

technical field [0001] The invention belongs to the technical field of automobile parts, and in particular relates to an automobile B-pillar capable of realizing multi-axis concentrated energy absorption. Background technique [0002] With the continuous increase of car ownership, the frequency of car accidents is gradually increasing, and the active and passive safety of cars is becoming more and more important. In the survey and statistics of collision accidents in the United States, the probability of side collisions accounts for 7%, and in the statistics of collision accidents in Japan, the probability of side collisions accounts for 12.7%. Because the side collision is relatively close to the driver, it poses a great threat to the driver's life safety, so it is particularly important to strengthen the safety of side collisions. [0003] The B-pillar is the main energy-absorbing component of side collisions, and it is also a hot spot for many scholars to study side coll...

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Problems solved by technology

[0006] The purpose of the present invention is to provide an automobile B-pillar that can realize multi-axis concentrated energy absorption, so as to solve the problem of the large side weight of the existing automobile B-pillar, high production cost, high initial peak value during collision, unstable energy absorption process, and energy absorption. Technical problems that don't work well

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