Vehicle body bottom structure

A structure and body technology, applied in the field of body bottom structure, can solve the problem of sacrificing the interior space of the car, and achieve the effects of improving side impact performance, restraining body deformation, and restraining intrusion

Inactive Publication Date: 2011-04-06
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, a closed box-shaped structure is usually provided at the threshold. Under this structure, in order to improve the performance of side collision, the strength of the vehicle body is usually increased by increasing the cross-sectional area of ​​the box-shaped structure at the threshold. Thereby reducing the deformation of the car body, but the increase in the cross-sectional area of ​​the box-shaped structure will inevitably sacrifice the space inside the car

Method used

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Embodiment Construction

[0016] Hereinafter, the present invention will be described in detail in conjunction with the accompanying drawings.

[0017] Such as Figures 1 to 5 As shown, the underbody structure according to the present invention includes: a box-shaped member H extending along the front-rear direction of the vehicle body and arranged on both sides of the underbody. The outer panel 3 is joined together; the first reinforcement 4 is arranged on the outside of the box-shaped member in the vehicle width direction and has a gap with the outer panel of the box-shaped member, so that when a side collision occurs, the outer panel of the box-shaped member 3 deforms first, and the outer panel 3 of the box-shaped member will contact the first reinforcement 4 only after deformation to a certain extent, which plays a certain role in strengthening the side collision. A second reinforcement 6 that is fixed inside the box-shaped member in the vehicle width direction; an inner reinforcement 1 that is pr...

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Abstract

The invention relates to a vehicle body bottom structure which comprises a box-shaped component, a first reinforcing member, a second reinforcing member and an internal reinforcing member, wherein the box-shaped component is arranged on both sides of the vehicle body bottom in the length direction in an extension mode; the first reinforcing member is arranged on the outer side in the box-shaped component in the width direction of the vehicle, and a clearance is arranged between the first reinforcing member and the outer side of the box-shaped component; the second reinforcing member is fixed on the inner side of the box-shaped component in the width direction of the vehicle; the internal reinforcing member is arranged on the first reinforcing member opposite to the second reinforcing member in the width direction of the vehicle; and the internal reinforcing member is provided with a clamping part which can be clamped with the second reinforcing member when the box-shaped structure deforms. According to the vehicle body bottom structure, when the box-shaped structure deforms, the internal reinforcing member can be mutually clamped with the first reinforcing member fixed on the inner side of the box-shaped structure, thereby inhibiting the box-shaped structure from distorting and deforming and cross section rupture generated along with the distortion and deformation. The vehicle body bottom structure can inhibit the deformation of the vehicle body and prevent the vehicle body component from invading the compartment under the condition of not reducing the space in the vehicle.

Description

technical field [0001] The invention relates to an underbody structure. Background technique [0002] In an era when cars are highly concerned, how to improve the safety performance of the whole vehicle is a big challenge for every car manufacturer. Compared with the safety performance of the whole vehicle, the strength and crash performance of the vehicle body are particularly important. In the crash performance of the vehicle, the side impact performance occupies a very important position. In a side collision, the amount of intrusion of body components into the compartment directly reflects the quality of the side collision performance. In the prior art, a closed box-shaped structure is usually provided at the threshold. Under this structure, in order to improve the performance of side collision, the strength of the vehicle body is usually increased by increasing the cross-sectional area of ​​the box-shaped structure at the threshold. Thereby reducing the deformation of...

Claims

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Application Information

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IPC IPC(8): B62D21/15
Inventor 李焕浪杨静
Owner BYD CO LTD
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