Automobile engine nacelle curb girder front part with reinforced energy absorbing structure

Abstract

The present invention discloses an automobile engine nacelle curb girder front part with a reinforced energy absorbing structure. The front part comprises a body, an external casing front plate, a front plate, and a support of a front crush box, which is connected on the front plate. The present invention is characterized in that one end of the front internal crush box and one end of the front external crush box are respectively connected with the support of the front crush box; the front internal crush box and the front external crush box are locked with each other and most of the front internal crush box is arranged inside the front external crush box; a first half reinforced cylinder and a second half reinforced cylinder are arranged inside the front internal crush box and are oppositely connected into a cylinder; and one end of the cylinder is connected with the support of the front crush box. Adopting a unique structure with the front internal crush box inside the front external crush box guarantees the complete absorption of energy during offset collision; the partitioning is reliable and punch forming is easy, thereby guaranteeing that an automobile can be successfully repaired when colliding at low speed.

Description

technical field [0001] The invention relates to automobile parts, in particular to a front section of an automobile engine compartment side beam with a reinforced energy-absorbing structure. Background technique [0002] Today, the automobile industry is in the fastest growing period in history, the number of automobiles has increased substantially, and traffic accidents have also increased year by year. As people pay more attention to life, whether at home or abroad, the star rating of car collisions has become an important factor for people to consider when buying a car. And in order to make self-owned brand cars enter foreign markets, they must get high scores in E-NCAP (European Automobile Evaluation Specification), but the bias of E-NCAP (64km / h) is the difficulty of scoring, because it is far higher It is based on the domestic C-NCAP (China Automobile Evaluation Specification) (56km / h). [0003] figure 1 It is a front part of the side beam of the automobile engine c...

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Problems solved by technology

[0004] figure 2 It is another front section of the engine compartment side beam, which is welded by the front body, the outer sealing front plate and the front collision inner box, and the front section of the engine compartment side beam is made of materials with different thicknesses in the front, middle and rear. It is made of laser tailor welding, and the front, middle and rear sections are all high-strength steel plates, which is not only unreasonable to divide into blocks, but also greatly increases the cost; when a low-speed collision occurs, it is inconvenient to maintain

[0005] The front section of the side beams of the engine compartment of the above two cars is not equipped with reinforcements, and only a small part is equipped with energy-absorbing structures, so that in the event of a collision, there will be bending phenomena and insufficient energy absorption, resulting in low scores in frontal collisions. , can not get the indicators stipulated by E-NCAP and C-NCAP

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