A front car body double beam channel structure

Abstract

The invention discloses a front vehicle body double beam channel structure, which comprises a front longitudinal beam, a rear longitudinal beam, a front floor, a first beam and a second beam, and the middle part of the front floor is provided with a central channel protruding upwards and extending longitudinally , the front part and the middle part of the central channel are respectively provided with a first reinforcing plate and a second reinforcing plate, the first beam and the second beam are arranged below the central channel, the two sides of the first beam The two ends of the second cross beam are fixed vertically to the front longitudinal beam and the rear longitudinal beam respectively, the two ends of the second cross beam are respectively fixed perpendicular to the front longitudinal beam and the rear longitudinal beam, and the upper surface of the second cross beam is perpendicular to the The lower surfaces of the second reinforcement boards are in contact with each other. In this way, multiple load paths are formed, the collision force is effectively decomposed, the collision performance of the vehicle is improved, and the strength and torsional rigidity of the vehicle are improved.

Description

technical field [0001] The invention relates to the structural field of a front vehicle body, in particular to a double cross beam channel structure of the front vehicle body. Background technique [0002] At present, the body structure is composed of components and their joints and sheet metal parts, and is the basic system for bearing and transmitting loads. The reasonable arrangement of the body structure beams has a decisive effect on the strength, stiffness and mode of the body. The quality of the structural arrangement not only affects the performance of the body, but also affects the cost of the body. At present, in the front body structure, the central channel of the handbrake cable is generally composed of a floor and a reinforcing plate to form a separate system. However, there are problems of poor local stiffness and strength. Moreover, the cross beams and longitudinal beams are not connected, and the location arrangement is unreasonable, resulting in local stre...

AI Technical Summary

Problems solved by technology

However, there are problems of poor local stiffness and strength

Moreover, the beams and longitudinal beams are not connected, and the location is unreasonable, resulting in local stress concentration, and the collision energy cannot be effectively transmitted

Moreover, the handling of noise and vibration is not ideal, the comfort is reduced, and the satisfaction of the driver is affected

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