Lightweight automotive middle channel

A lightweight, mid-channel technology, applied in vehicle components, superstructure, and sub-assembly of the upper structure, etc., can solve the problems of increasing the weight of the whole vehicle, weak joints, fractures, etc., to ensure strength and rigidity, reduce weight, and ensure safe effect

Active Publication Date: 2015-12-30
FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Disadvantage 1: The middle channel is too independent. The traditional middle channel only has a welding relationship with the floor at one point of the flange on both sides. Relatively speaking, the connection is still relatively weak, and the middle channel and the floor are still relatively independent. Such a collision occurs During the process, it is inevitable that the strength is not very sufficient, and there is a possibility of fracture
However, the thickness of the reinforced beam is relatively thick to meet the strength requirements. The general thickness design here is 1.2mm, such as image 3 As shown, this will greatly increase the weight of the middle channel, and also increase the weight of the whole vehicle

Method used

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Embodiment approach 1

[0029] Embodiment of the present invention is a kind of passageway in lightweight automobile, please refer to Figure 4 , is a cross-sectional view of the middle passage in the embodiment of the present invention, the longitudinal section of the middle passage 1 is a few characters, and the two sides of the middle passage 1 are respectively connected with the front floor 2 of the car, and the front floor 2 includes the front floor main body, The front floor front crossbeam and the front floor rear crossbeam, the two ends of the front floor front crossbeam and the front floor rear crossbeam are respectively connected to the door sill and the middle channel of the car. Wherein, the front floor 2 is arranged under the middle passage 1, and the two sides of the middle passage 1 are provided with flanges, and the front floors 2 on both sides of the middle passage respectively extend to the middle of the middle passage 1 and form cavities 3 with the middle passage 1 respectively. , ...

Embodiment approach 2

[0033] see Figure 5 , the difference from Embodiment 1 is that in this embodiment, the two ends of the middle channel 1 are respectively welded to the corresponding front floor 2, so that the cavity 3 forms a sealed cavity, and in the The channel 1 or the front floor 2 is provided with a valve core 13 communicating with the sealed cavity, and the sealed cavity is evacuated by a vacuum device to form a negative pressure cavity.

[0034] In this embodiment, the cavity formed by the middle passage and the front floor is welded into a sealed cavity, and the air inside is removed to form a negative pressure cavity, so that the effect of atmospheric pressure is used to improve the connection between the middle passage and the front floor. The overall strength between the front floors improves the structural strength of the center channel without changing the structure of the center channel or adding any weight. Tests have proved that the negative pressure cavity improves the impac...

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Abstract

The invention discloses a lightweight automotive middle channel. The longitudinal section of the middle channel is in a shape of a Chinese character 'ji', two sides of the middle channel are respectively connected with front floors of an automobile, the front floors on two sides of the middle channel respectively extend towards the middle of the middle channel and respectively form cavities with the middle channel, the two sides of the middle channel are respectively welded with the corresponding front floors, and the tail ends of the front floors are respectively welded to the middle of the middle channel. The lightweight automotive middle channel is light in weight and high in structural strength.

Description

technical field [0001] The invention relates to the field of automobile body structures, in particular to a light-weight automobile center tunnel. Background technique [0002] With the development of the automobile industry, the safety and lightweight of automobiles have become important topics in automobile research and development, and the tunnel structure of automobiles, as an important part of the body, involves the safety of automobiles in the process of frontal and side collisions. Usually, the tunnel structure of the car is large and complex, so how to realize the lightweight of the tunnel structure of the car under the condition of ensuring the collision safety performance will become a challenge in the design of the tunnel structure of the car. [0003] At present, the design of the middle tunnel assembly of the automobile is generally the middle tunnel body and the middle tunnel reinforcement beam, and the middle tunnel body is longitudinally arranged ( figure 1 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D25/20
Inventor 陈勇彪吴贵新刘心文
Owner FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD
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