Vehicle Window Sealing Assembly for Glass Run Noise Gaps
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Solution Overview
Problem
Existing vehicle sealing assemblies fail to effectively prevent noise ingress through gaps between the glass run and door inner trim panel, leading to undesirable noise in the vehicle cabin.
Innovation Solution
A sealing assembly comprising a receptacle, a compressible member, and a sealing member that engages the vehicle window, where the compressible member is connected to the receptacle and the sealing member is connected to the compressible member, providing improved sealing by compressing to fit into the gap between the glass run and door inner panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional waist molding is connected to the door inner panel, then the structure is simple and easy to manufacture, but noise ingress occurs through the gap between the glass run and door inner trim panel
Solution Approach 1:
The sealing assembly is nested within the existing door structure by integrating it with the glass run assembly. The receptacle is mounted to the glass run, the compressible member fits within the receptacle cavity, and the sealing member engages with the window panel, creating a nested configuration that fills the gap without requiring separate external components
Solution Approach 2:
The compressible member acts as an intermediary element between the receptacle and the sealing member. It provides a flexible connection that allows the sealing member to engage the window panel while accommodating variations in gap size and maintaining sealing pressure through its compressible nature
2Reliability
If the sealing assembly uses a rigid structure, then manufacturing precision is easier to control, but the sealing effectiveness decreases due to inability to adapt to gap variations
Solution Approach 1:
The compressible member changes its physical parameter (compression degree) in response to variations in the gap between the glass run and door inner trim panel. This allows the sealing assembly to adapt to different installation conditions and maintain reliable sealing without requiring precise manufacturing tolerances
Solution Approach 2:
The compressible member is made of a flexible material that can deform to fit into the gap space. This flexibility allows the sealing assembly to conform to variations in the gap dimensions while maintaining sealing effectiveness, eliminating the need for rigid precision manufacturing
3Object-affected harmful factors
If the sealing member is designed to fully engage the window panel, then noise sealing is improved, but the complexity of the compressible member and receptacle connection increases
Solution Approach 1:
The sealing assembly is segmented into distinct functional components: the receptacle (mounted to glass run), the compressible member (providing flexible connection), and the sealing member (engaging the window). This segmentation allows each component to be optimized for its specific function while simplifying the overall design and manufacturing
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The sealing assembly significantly reduces wind noise leakage by compressing to fit into the gap, thereby enhancing the sealing performance and preventing noise ingress.
Implementation Method 1
the compressible member is connected to the receptacle and the sealing member is connected to the compressible member, providing improved sealing by compressing to fit into the gap between the glass run and door inner panel
Data Source
AI summary
A sealing assembly for a vehicle includes a receptacle, a compressible member, and a sealing member. The receptacle is configured to be connected to a vehicle component. The compressible member is connected to the receptacle. The sealing member is connected to the compressible member. The sealing member is configured to engage a vehicle window.