Automotive front bumper system

Abstract

The invention discloses a front bumper system of an automobile, which comprises a bumper beam, a buffer energy-absorbing block, a sub-bumper reinforcement plate, and a bumper outer skin. The bumper beam is a metal structure and is connected to the body frame by welding The front end of the auxiliary bumper reinforcement plate is connected to the outer skin of the bumper through buckles, and the rear end is installed to the bottom of the water tank bracket through bolts; the outer skin of the bumper is wrapped on the outside of the buffer energy-absorbing block, The outer skin of the bumper has an integrated structure and the front end faces of the upper and lower parts are located in the same cross section, the front end face of the auxiliary bumper reinforcement plate and the front end face of the buffer energy-absorbing block are located in the same cross section, the The buffer energy-absorbing block is installed in the cavity between the bumper outer skin and the bumper beam. The invention can effectively reduce the damage to the pedestrian's lower limbs when a person-vehicle collides.

Description

technical field [0001] The invention relates to an automobile bumper, in particular to an automobile front bumper system. Background technique [0002] In recent years, with the increase of traffic safety awareness, the frequency of road traffic accidents in China has decreased, but the total number of casualties caused by traffic accidents is still very large. According to statistical analysis, in all road traffic accidents, pedestrian casualties account for about 20% of the total casualties; among them, the frequency of lower limb injuries is second only to head injuries. [0003] In the process of human-vehicle collision, the front bumper of the automobile is the main structure that causes the injury of pedestrian's lower limbs. In the event of an accident, the pedestrian's calf or knee joint area first directly collides with the bumper, the tibia bears the direct impact force, and due to the delay in the movement of the femur, the knee joint area bears shear loads as we...

AI Technical Summary

Problems solved by technology

[0004] The structure of the existing automobile bumper is generally installed on the front of the automobile frame, a slightly curved channel-shaped steel plate. The defect of this structure is that once the automobile collides with other vehicles or objects during driving, the bumper has no buffer. Function, its impact force produces a 1:1 impact effect, not only causing damage to the object being hit, but also causing damage to the driver and the vehicle itself

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