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A sealing structure for the upper end of an a-pillar

A sealing structure and sealing technology, which are applied to the superstructure, superstructure sub-assemblies, vehicle components, etc., to achieve the effects of improving stability, enhancing sealing effect, and improving sealing stability.

Active Publication Date: 2021-10-22
ZHEJIANG LEAPMOTOR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of the open A-pillar in the prior art, the present invention provides a sealing structure at the upper end of the A-pillar, which uses an expandable composite seal to seal the open structure at the upper end of the A-pillar, and the outer edge of the composite structure The set plastic sealing layer can still maintain the sealing state in the structural cavity after the volume of the composite seal shrinks, and has a stable sealing effect

Method used

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  • A sealing structure for the upper end of an a-pillar
  • A sealing structure for the upper end of an a-pillar
  • A sealing structure for the upper end of an a-pillar

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 , 2As shown, a sealing structure at the upper end of the A-pillar includes an A-pillar reinforcement panel 1 and a side panel outer panel 2, an A-pillar inner panel 3 is arranged below the side panel outer panel 2, an A-pillar reinforcement panel 1 and a side panel outer panel 2 A composite seal 4 is arranged between them, a structural cavity 11 is formed between the A-pillar reinforcement plate 1, the side wall outer panel 2 and the A-pillar inner panel 3, the composite seal 4 is an expandable part, and the composite seal 4 A plastic sealing layer 5 is arranged on it, and the plastic sealing layer 5 fills the structural cavity 11 . The composite seal 4 can be expanded and deformed, and the extruded plastic seal layer 5 fills the structural cavity 11; due to the characteristics of the plastic material, when the composite seal 4 shrinks after expansion, the plastic seal layer 5 can still remain The deformed position maintains the sealing effect on the ...

Embodiment 2

[0031] The difference from Example 1 is that in this example, the expansion layer adopts a micro-airbag, and the micro-airbag is a sealed structure with sodium nitride inside. After the panel and the A-pillar reinforcement panel, the expansion layer is squeezed hard, the sodium nitride in the micro-airbag is decomposed into nitrogen and sodium simple substances, and the micro-airbag expands and squeezes the plastic sealing layer to fit the inner wall of the structural cavity , in turn to achieve long-term sound insulation sealing effect.

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Abstract

The invention discloses a sealing structure for the upper end of an A-pillar. A composite seal is arranged between the A-pillar reinforcement plate, the side wall outer panel and the A-pillar inner panel to form a structural cavity, the composite seal is an inflatable part, and the composite seal is set There is a plastic sealing layer which fills the structural cavity. The open structure at the upper end of the A-pillar is sealed by an expandable composite seal. The plastic sealing layer set on the outer edge of the composite structure can still maintain the sealing state in the structural cavity after the volume of the composite seal shrinks. Stable sealing effect.

Description

technical field [0001] The invention relates to the technical field of auto parts manufacturing, in particular to a sealing structure for the upper end of an A-pillar. Background technique [0002] At present, with the continuous progress of the automobile industry, the requirements for the appearance quality and material utilization of automobile outer panels are getting higher and higher, which requires designers to continuously improve the level of design and manufacturing technology. In the field of automotive body-in-white sheet metal parts, the side wall outer panel is the core of the body-in-white parts manufacturing. It has the characteristics of complex shape, large structural size, difficult forming, and high quality requirements for the outer surface. The side panel is also an important part that affects the appearance, rigidity, sealing, welding, and lightweight of the car body, and it is also the most difficult and complex part to stamp. The lower part of the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R13/06B62D25/04B62D25/02
CPCB60R13/06B62D25/02B62D25/04
Inventor 刘建胜
Owner ZHEJIANG LEAPMOTOR TECH CO LTD
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