Automobile back door strengthening structure

A technology for strengthening the structure and the back door, which is applied to doors, vehicle parts, transportation and packaging, etc., and can solve problems such as unreasonable design, cracking of the door lock position, and performance that cannot meet certain requirements

Inactive Publication Date: 2015-03-25
北汽瑞翔汽车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The actual working conditions of the back door are relatively complicated, and its working process is subject to loads that change with time. If the design is unreasonable, the performance will not meet certain requirements.
During the use of the actual vehicle, the back door of the prior art will have cracks in the sheet metal of the hinge installation point, cracks in the position of the door lock, and cracks in the inner panel of the back door

Method used

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  • Automobile back door strengthening structure
  • Automobile back door strengthening structure
  • Automobile back door strengthening structure

Examples

Experimental program
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Embodiment Construction

[0015] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0016] See attached Figures 1 to 4 , the automobile back door reinforcement structure in the figure, comprises the back door outer panel 1 and the back door inner panel 2 fixed positions integral; Wherein:

[0017] The upper part of the inner cavity formed between the back door outer panel 1 and the back door inner panel 2 is provided with a connecting plate 3, and the two ends of the connecting plate 3 are fixed with inner panel reinforcing plates 5, and the connecting plate 3 and the inner panel The reinforcement plate 5 forms a reinforcement structure, and the two panels of the reinforcement structure are respectively welded together with the inner surface of the back door outer panel 1 and the inner surface of the back door inner panel 2 . In this embodiment, the tailgate modal, lateral stiffness is increased. Under the same experimental conditions, th...

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PUM

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Abstract

The invention relates to an automobile back door, in particular to an automobile back door strengthening structure. The automobile back door strengthening structure comprises a back door outer plate and the back door, wherein a back door inner plate and the back door are fixed into a whole. A connecting plate is arranged at the upper portion of an inner cavity formed between the back door outer plate and the back door inner plate, inner plate strengthening plates are fixed to the two ends of the connecting plate, and a strengthening structure is formed by the connecting plate and each inner plate strengthening plate, wherein two face plates of the strengthening structure, the inner plate face of the back door outer plate and the inner plate face of the back door inner plate are welded into a whole. Due to the structure, the modality and lateral rigidity of the back door are improved, and the rigidity performance of a hinge installing point is enhanced.

Description

technical field [0001] The invention relates to an automobile back door, in particular to an automobile back door reinforcement structure which reduces requirements on welding precision of a vehicle body, reduces manufacturing costs and improves production efficiency. Background technique [0002] The back door of a car is a key part of the car body. It is connected with the body through hinges and locks, and is an organic whole with the car body. When designing the back door, it must first ensure its airtightness and ensure the overall In terms of strength, stiffness, modality and manufacturability, it must meet the requirements of the overall performance of the car body. [0003] The actual working conditions of the back door are relatively complicated, and its working process is subject to loads that change with time. If the design is unreasonable, the performance will not meet certain requirements. During the use of the actual vehicle, the back door of the prior art wil...

Claims

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Application Information

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IPC IPC(8): B60J5/10
Inventor 汪随风王国栋钱凌锋李书林
Owner 北汽瑞翔汽车有限公司
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