Reinforcing structure of saloon car rear floor spare wheel groove

A technology for strengthening structure and rear floor, applied in the directions of superstructure, spare tire arrangement, superstructure sub-assembly, etc., can solve the problem of increasing the investment cost of stamping dies and welding fixtures, failing to achieve floor stiffness and modal, increasing stamping Process difficulty and other issues to avoid the resonance of the spare tire groove, improve performance, and improve NVH

Active Publication Date: 2012-11-21
CHERY COMML VEHICLE ANHUI
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Problems solved by technology

[0004] However, the above-mentioned improvement methods have shortcomings. For example, changing the material will increase the difficulty of the stamping process, and changing the thickness of the material will increase the weight of the vehicle; the depth of the ribs is required to be high, otherwise the floor stiffness and modal will not be significantly improved. effect; it will not only increase the investment cost of stamping dies and welding fixtures, but also increase the weight of the vehicle
[0005] It is a problem to be solved in the prior art to provide a simple and easy way to avoid the resonance phenomenon of the spare tire groove during the running of the car

Method used

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  • Reinforcing structure of saloon car rear floor spare wheel groove
  • Reinforcing structure of saloon car rear floor spare wheel groove

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Embodiment Construction

[0020] Take the direction of the front of the car as the front end, and the direction of the rear of the car as the rear end. In the present invention, the spare tire groove 1 tends to be closed from the front to the rear; a T-shaped rib 2 is arranged around the spare tire mounting point 5, and line ribs 3 of equal width are evenly distributed at the rear end of the spare tire mounting point 5; A linear rib 4 is arranged around the spare tire installation point 5, so as to avoid the resonance phenomenon in the spare tire groove by ingeniously adding reinforcing ribs.

[0021] The purpose of the present invention is to improve the spare tire groove on the rear floor of the car, significantly increase the rigidity and mode of the spare tire groove, avoid the occurrence of resonance phenomenon, and facilitate the full deformation and energy absorption of the car after a collision, so as to protect the fuel tank and passengers .

[0022] The present invention includes a spare tir...

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Abstract

The invention discloses a reinforcing structure of a saloon car rear floor spare wheel groove, and is characterized in that the reinforcing structure is that the spare wheel groove tends to be closed up from front to rear; T-shaped ribs are arranged by taking a spare wheel installation point as a center, and line ribs are distributed at the rear end of the spare wheel installation point at equal width intervals; and straight ribs are arranged at the periphery of the spare wheel installation point. Due to the adoption of the structure, the reinforcing structure has the following advantages that 1. The spare wheel groove resonance phenomenon in the car running process is avoided with a lower cost, and the NVH (noise, vibration and hardness) performances of the entire car are enhanced; and 2. The reinforcing structure is easy to realize by a punching process, and is worthy of industrially popularizing and applying.

Description

technical field [0001] The invention relates to a body structure of an automobile, in particular to a reinforcement structure for a spare tire groove on the rear floor of an automobile. Background technique [0002] At present, the car body structure mostly adopts load-bearing body structure design. As the main part of the lower part of the car body, the rear floor plays an important role in carrying passengers, placing the spare tire, and preventing damage to the fuel tank and reducing injuries to the occupants through self-deformation in a rear collision. At the same time, with the gradual improvement of customers' requirements for vehicle NVH performance, the rear floor is required to have sufficient strength and rigidity, especially the spare tire groove must not resonate. [0003] In order to improve the performance here, the current conventional method is to replace the rear floor material or increase the thickness of the material, optimize the reinforcement rib of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D43/04B62D25/20
Inventor 王爱国朱浩高发华
Owner CHERY COMML VEHICLE ANHUI
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