Central-through-sunken-part-reinforced front longitudinal beam

A front longitudinal beam and center technology, applied in the field of automobile body, can solve the problems of reducing design margin, insufficient energy absorption, increasing the difficulty of matching restraint system, etc. Energy absorption requirements, improving the effect of unstable deformation form

Inactive Publication Date: 2016-03-09
SAIC-GM-WULING AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The dynamic drop weight test shows that the unreasonable design of the traditional hat-shaped section can easily lead to uncontrollable deformation such as insufficient energy absorption, bending, and indentation of the flange. Reduce Design Margin
At the same time, it increases the difficulty of constraint system matching
The deformation of the front longitudinal beam of the traditional section is not easy to control, so the energy absorption cannot meet the design requirements, and there are deficiencies in improving the utilization rate of materials or reducing the weight of the front longitudinal beam

Method used

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  • Central-through-sunken-part-reinforced front longitudinal beam
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  • Central-through-sunken-part-reinforced front longitudinal beam

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 to Figure 2 The reference numerals in are: main side panel 1; concave side panel 2; first side panel 21; second side panel 22; central concave groove 23; first raised shoulder 24; second raised shoulder 25; The first flange 26; the second flange 27; the induction groove 3.

[0020] Such as Figure 1 to Figure 2 As shown in the figure, a front longitudinal beam reinforced by a central penetrating depression includes a main side panel 1 and a concave side panel 2, the main side panel 1 and the concave side panel 2 form a closed cavity, and the depression The side plate 2 is provided with a central concave groove 23 , and the concave direction of the central concave groove 23 faces the main side plate 1 .

[0021] Such as Figure 1 to Figure 2 As shown, the two ends of the central concave groove 23 are respectively extended an...

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Abstract

The invention provides a central-through-sunken-part-reinforced front longitudinal beam. The central-through-sunken-part-reinforced front longitudinal beam comprises a main side plate and a sunken side plate. A closed cavity is defined by the main side plate and the sunken side plate, a central sunken groove is formed in the sunken side plate, and the sinking direction of the central sunken groove faces the main side plate. The central-through-sunken-part-reinforced front longitudinal beam has the advantages that as the central-sunken-groove cross section design is adopted, the problem that a deformation form of a front longitudinal beam with a traditional cross section is instable is effectively solved; as the cross section form of the front longitudinal beam is changed, under the conditions of the same material and the same mass, the safe collision energy-absorption requirement of the front longitudinal beam is effectively met, the crushing force and the energy absorption index are effectively increased, and the light-weight requirement of a car body is met.

Description

technical field [0001] The invention relates to an automobile body, in particular to a front longitudinal beam reinforced by a central penetrating depression in the automobile body. Background technique [0002] The deformation mode and energy absorption of the front longitudinal beam directly affect the intrusion of the passenger compartment and the acceleration damage value of the occupants. The front longitudinal beam is the basic load-bearing unit of the body frame structure and the key component for absorbing collision energy in the structure. It is generally used in The energy-absorbing area at the front end of the frame, its energy-absorbing characteristics directly determine the crash performance of the car. The component must not only have sufficient strength and rigidity, but also have good plastic deformation ability; it can not only ensure that the kinetic energy can be converted into the deformation energy constructed in this area as much as possible when the fr...

Claims

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Application Information

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IPC IPC(8): B62D21/02
CPCB62D21/02
Inventor 吕俊成莫易敏林智桂王峰罗覃月农天武苏东邓元
Owner SAIC-GM-WULING AUTOMOBILE CO LTD
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