Car door anti-collision beam

Abstract

The invention discloses a car door anti-collision beam. The car door anti-collision beam comprises front door anti-collision beams arranged on front car doors and rear door anti-collision beams arranged on rear car doors, wherein the front door anti-collision beams are obliquely arranged from front to rear; the front ends of the front door anti-collision beams are fixed between an upper hinge and a lower hinge at the front ends of front door inner plates and are close to the position of the upper hinge; the rear ends of the front door anti-collision beams are fixed at the positions close to the root parts of the lower ends of columns B on the front door inner plates; and the cross sections of the front door anti-collision beams are of bow-shaped structures. As the cross sections of the front door anti-collision beams are bow-shaped, the best energy absorbing effect of the whole anti-collision beam in a lateral collision process can be obtained, and much collision energy is absorbed; as the front door anti-collision beams are obliquely arranged, most of loads on front hinge columns in a forward collision process can be transferred to the root parts of the columns B through the car door anti-collision beam, and the rest of few loads are transferred to the lower parts of the columns B through car door window frame reinforced plates, so that the loads are favorably transferred in a dispersing way, therefore, the safety of front passengers can be guaranteed more comprehensively; and the columns B cannot be suffered with buckling deformation, so that car doors can be still opened in case of an accident.

Description

technical field [0001] The invention relates to automobile parts, in particular, the invention relates to an automobile door anti-collision beam. Background technique [0002] Automobile door anti-collision beam refers to the addition of beams in the front and rear directions of the inner panel of the door to strengthen the rigidity of the door, and at the same time, it can effectively reduce the deformation of the door during various collisions and improve the safety performance of the vehicle. The door anti-collision beam acts as an additional energy-absorbing protection device, which can reduce occupants' possible damage from external forces. The traditional anti-collision beam structure is generally a circular cross-section or a common single-hat type. For example, the anti-collision beam described in the patent No. 200920206636.6 is a round tube type. Patent Nos. 200710021080, 200920206636, 200810244331.4, and 201020301038.X all disclose a kind of anti-collision beam f...

AI Technical Summary

Problems solved by technology

Patent Nos. 200710021080, 200920206636, 200810244331.4, and 201020301038.X all disclose a kind of anti-collision beam for automobiles, but none of these anti-collision beam structures can fundamentally solve the problem of energy absorption and load transmission of the car door during the collision process. The energy absorption effect is not ideal, and the arrangement of the anti-collision beam cannot transmit energy well, so that the anti-collision beam cannot play a protective role to the greatest extent during the collision process of the vehicle

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