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Automobile front collision energy-absorbing device and assembling method thereof

An energy-absorbing device and front-collision technology, which is applied to vehicle components, transportation and packaging, and substructure, can solve problems such as intrusion, bending and deformation of the front cabin longitudinal beam floor, and affecting occupant safety, so as to alleviate the degree of deformation and improve collision Safety performance, solve the effect of energy absorption

Inactive Publication Date: 2010-10-27
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the event of a frontal collision, the front cabin longitudinal beam 14 is prone to bending deformation around the front end of the floor
Since the firewall structure generally cannot provide effective support, nor can it effectively disperse the load transmitted by the longitudinal beam to the rear, resulting in a large intrusion from the rear of the longitudinal beam, seriously affecting the safety of the occupants

Method used

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  • Automobile front collision energy-absorbing device and assembling method thereof
  • Automobile front collision energy-absorbing device and assembling method thereof
  • Automobile front collision energy-absorbing device and assembling method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides a specific form of the longitudinal beam connecting plate structure.

[0038] That is: the height of the front cabin longitudinal beam 5 extending in the direction of the twisted beam 2 is higher than that of the twisted beam 2, and the described longitudinal beam connecting plate 1 is a curved member connecting the two, and the bending direction is from the front cabin longitudinal beam. 5 bends to the rear and the bottom of the vehicle body until the end connected with the torsion beam 2.

[0039]The setting of the above-mentioned structure makes the longitudinal beam connecting plate 1 adapt to the structural form of the front cabin longitudinal beam 5, and ensures that it will not directly act on the torsion beam 2 in the form of force after it is stressed, but in the form of moment. The form loads the torsion beam 2, causing it to undergo a certain torsional deformation, so that the torsion beam 2 can transmit energy on the one hand, and st...

Embodiment 2

[0041] This embodiment is a specific structural form in which the longitudinal beam connecting plate 1 is connected to the twisted beam 2 .

[0042] The longitudinal beam connecting plate connection sleeve 10 is provided, the longitudinal beam connecting plate 1 connects the sleeve 10 and the twisted beam 2 through the longitudinal beam connecting plate, and the cross section of the twisted beam 2 is in the shape of a spline, or a tooth shape, or a polygon, Or ellipse, the cross-section of the hole where the connecting sleeve 10 of the longitudinal beam connecting plate is sleeved on the twisted beam 2 is a shape matched with the shape of the cross-section of the twisted beam 2 .

[0043] The positions near both ends of the torsion beam 2 are connected to the two longitudinal beam connecting plates 1 through two longitudinal beam connecting plate connecting sleeves 10; On the reinforced inner plate of the neck (i.e. adapting to the bending position of the vehicle body), the en...

Embodiment 3

[0045] This embodiment provides a specific structural form in which the door hinge post mounting bracket 6 and the door sill mounting bracket 7 are connected on the door hinge post 3 and the door sill 4 .

[0046] A door hinge column fixing seat 8 and a threshold fixing seat 9 are provided, and the door hinge column mounting bracket 6 is tightly connected with the door hinge column 3 through the door hinge column fixing seat 8; It is firmly connected with the door sill 4.

[0047] The above structure ensures that the torsion beam 2 can be tightly connected to the door hinge column 3 and the threshold 4 on both sides of the vehicle body through the door hinge column mounting bracket 6 and the door sill mounting bracket 7, so that when a collision occurs, the energy is evenly distributed to various parts of the vehicle body. Reduce collision losses.

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Abstract

The invention discloses an energy absorber for front collision of an automobile and a mounting method; the rear end of the longitudinal beam of a forward cabin is provided with connecting plates of the longitudinal beam, a door hinge pillar mounting frame and a threshold mounting frame which are mutually connected and respectively fixedly connected with a door hinge pillar and a threshold; a torsional crossbeam is arranged and two ends of the torsional crossbeam are respectively connected with the door hinge pillar mounting frame and the threshold mounting frame; the connecting position is atthe position where the door hinge pillar mounting frame is connected with the threshold mounting frame; the two connecting plates of the longitudinal beam are sheathed and connected with the torsional crossbeam and are fastened along the revolving direction of the torsional crossbeam. By adopting the technical scheme, the impulsive load during the collision is distributed on a plurality of parts of the car so as to harmonize the left and right deformations of the car body; with smaller deformation, the torsional crossbeam converts more kinetic energies into potential energies of deformation so as to further relieve the deformation degree of the car body, thus solving the problem of energy absorption in collision and greatly improving the safety performance of the car in the collision withthe front part of the car.

Description

technical field [0001] The invention belongs to the technical field of automobile structure, and relates to the automobile body structure, more specifically, the invention relates to an automobile front collision energy absorbing device. In addition, the present invention also relates to the assembly method adopted by the above-mentioned automobile front collision energy absorbing device. Background technique [0002] With the development of automobile technology towards safer, higher speed and more energy-saving, people's requirements for automobile safety are also getting higher and higher. [0003] The process of car collision is an energy conversion process that gradually converts kinetic energy into variable energy. The energy absorption and distribution of each component in the whole process determines the deformation effect of the car body after the collision. Effectively controlling the energy distribution in the collision process is the basis for the safety design ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D21/15
Inventor 余路徐立伟
Owner CHERY AUTOMOBILE CO LTD
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