Novel A-pillar structure of automobile with frameless door

Abstract

The invention discloses a novel A-pillar structure of an automobile with a frameless door. The novel A-pillar structure comprises an outer decorating part, a side wall outer plate, an A-pillar reinforcing part and an A-pillar inner plate which are sequentially arranged from outside to inside. The side wall outer plate is provided with a first front lap-joint flange, a first rear lap-joint flange and a first protruding part. The A-pillar reinforcing part is provided with a second front lap-joint flange, a second rear lap-joint flange and a second protruding part; the A-pillar inner plate is provided with a third front lap-joint flange, a third rear lap-joint flange and a third protruding part, the section of the third protruding part is in a V shape, the third rear lap-joint flange inclines inwards in the direction close to the frameless vehicle door, and a first cavity is formed between the second protruding part and the third protruding part. According to the novel A-pillar structure of the automobile with the frameless automobile door, the overall strength of the A-pillar can be guaranteed, the A-pillar is prevented from being bent in the front 25% offset collision test, and therefore the collision safety performance of the whole automobile is improved, and meanwhile the obstacle angle of the A-pillar is prevented from being increased.

Description

technical field [0001] The invention relates to the technical field of automobile body structures, in particular to a novel A-pillar structure of a frameless door automobile. Background technique [0002] The A-pillar connecting the roof and the front cabin on the left and right front of the car is an important safety structure of the car. In the frontal 25% offset collision test project, the small offset only covers 25%, and it cannot be dispersed through the longitudinal beams during a collision. Collision load and absorption of collision energy, most of the energy is released to the A-pillar, the vehicle is severely deflected, the test dummy is thrown to one side under the action of huge lateral acceleration, the strength of the A-pillar, the length of the side air curtain and the inflated side air curtain Volume plays a vital role in whether a car can meet the standard in the frontal 25% offset crash test project. Therefore, with the addition of the frontal 25% offset cr...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the purpose of the present invention is to overcome the defects in the prior art, to provide a novel A-pillar structure of a frameless door car, which can ensure the A-pillar The overall strength prevents the bending of the A-pillar during the frontal 25% offset crash test, thereby improving the crash safety performance of the vehicle, and at the same time preventing the A-pillar’s ​​obstacle angle from increasing due to the excessively large internal cavity of the A-pillar and affecting driving safety; on the other hand It also provides enough space for the side air curtain to prevent the side air curtain from protruding while ensuring the expanded volume of the side air curtain, reducing the impact on the space of the A-pillar interior trim installation panel, and further reducing the A-pillar obstacle angle

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