Vehicle Side-Glass Sealing Profile With Hook-Guided Leak Control
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Solution Overview
Problem
Current flush/smooth sealing structures for motor vehicle side glasses are complex, leading to implementation difficulties, high costs, and insufficient sealing performance, particularly in preventing dust and liquid leakage, especially in the x direction.
Innovation Solution
A sealing profile utilizing hook and pillar structures to simplify the sealing process, ensuring effective dust and liquid prevention by guiding glass movement and maintaining position through various lips and coatings, including a hook for fixing the glass in the x direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex sealing structures are used to prevent dust and liquid leakage, then sealing performance is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The sealing profile is divided into distinct functional segments: a hook portion for lateral (x-direction) engagement, a pillar portion for vertical positioning, and various lips for sealing. This segmentation allows each component to perform its specific function efficiently without requiring a complex integrated structure, thereby maintaining high sealing performance while reducing overall structural complexity
Solution Approach 2:
The sealing profile acts as an intermediary component between the glass and the vehicle body structure. The hook and pillar portions serve as mediating elements that translate and distribute forces, enabling effective sealing through simple engagement mechanisms rather than complex multi-component systems
2Reliability
If complex sealing structures are used to prevent dust and liquid leakage, then sealing performance is improved, but manufacturing cost increases
Solution Approach 1:
Multiple sealing functions are merged into a single integrated profile structure. The hook portion, pillar portion, and various lips are combined in one component that can be manufactured as a single piece, eliminating the need for multiple separate parts and assembly operations, thereby reducing manufacturing cost while maintaining effective sealing performance
Solution Approach 2:
The sealing profile performs multiple functions simultaneously: the hook portion provides lateral engagement and positioning, the pillar portion provides vertical support and alignment, and the lips provide sealing barriers. This multi-functionality in a single component reduces the number of parts needed, simplifying manufacturing and reducing costs
3Stability of the object's composition
If glass positioning structures are added to fix glass in x direction, then glass stability is improved, but device complexity increases
Solution Approach 1:
The hook portion is specifically designed with localized engagement features that provide x-direction fixing at the critical injection transition regions where glass stability is most needed. This localized approach provides necessary stability without requiring complex positioning structures throughout the entire assembly
4Ease of manufacture
If simple sealing structures are used, then manufacturing cost is reduced, but sealing performance deteriorates
Solution Approach 1:
The profile is segmented into functionally optimized portions (hook, pillar, lips) that each address specific sealing challenges. This segmentation enables effective sealing through simple, purpose-designed features rather than requiring a complex overall structure, achieving both cost-effectiveness and high sealing performance
Data Source
AI summary
A sealing profile providing dust and water insulation for use in the side glasses of motor vehicles.