Vehicle Door Sealing Structure for Window Frame Gap Noise Reduction
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Solution Overview
Problem
Existing vehicle door sealing structures with gaps between the window frame and outer panel result in noise from wind passing through, and the use of separate spacers or sealing members increases manufacturing costs and assembly complexity due to independent preparation and positioning requirements.
Innovation Solution
A sealing structure for vehicle doors that integrates a glass run with a gap filling portion, where the glass run includes an outer sealing plate with a gap filling portion extending downward to fill the gap between the window frame and outer panel, reducing noise and simplifying assembly by ensuring accurate positioning and integration with the glass run.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a separate spacer or sealing member is used to fill the gap, then wind noise is reduced, but manufacturing cost increases and assembly complexity increases
Solution Approach 1:
The glass run is designed to integrate the gap filling function directly into its structure. The glass run includes a gap filling portion that extends downward to fill the gap between the window frame and outer panel, eliminating the need for separate spacer or sealing member components while maintaining noise reduction effectiveness
2Object-affected harmful factors
If a separate spacer is used to fill the gap, then wind noise is reduced, but the number of assembly steps increases
Solution Approach 1:
The glass run is designed to integrate the gap filling function directly into its structure. The glass run includes a gap filling portion that extends downward to fill the gap between the window frame and outer panel, eliminating the need for separate spacer or sealing member components while maintaining noise reduction effectiveness
3Reliability
If a separate spacer is used to fill the gap, then gap filling is achieved, but positioning accuracy is difficult to ensure
Solution Approach 1:
The glass run is designed to integrate the gap filling function directly into its structure. The glass run includes a gap filling portion that extends downward to fill the gap between the window frame and outer panel, eliminating the need for separate spacer or sealing member components while maintaining noise reduction effectiveness
Solution Approach 2:
The glass run's own structure provides the gap filling capability through its integrated gap filling portion, eliminating the need for separate positioning and assembly operations for additional components
Data Source
AI summary
A gap formed in a front portion of a door is easily and reliably filled so that occurrence of noise is reduced. A frame front side portion retaining a glass run front side portion being inserted is provided in a front portion of a window frame. A front side of an outer panel is provided with a mirror base to which a mirror base cover is attached. A rear edge of the mirror base is provided with a rear plate portion extending to a cabin inner side. A gap is formed between the frame front side portion and the rear plate portion. An outer sealing plate portion overlapping with a cabin outer side of the mirror base is provided with a gap filling portion extending downward.