Vehicle Window Pane Assembly With Dynamic Anti-Icing Seal Gap
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Solution Overview
Problem
Existing window pane assemblies for vehicles with movable windows face issues with water and snow accumulation and freezing, leading to operational difficulties at low temperatures, requiring complex and expensive solutions to ensure reliable opening.
Innovation Solution
A window pane assembly with a wedge-shaped thickened section on the outer face of the movable window pane, which creates a gap with the outer seal element when parked, preventing ice formation and allowing for easy operation at low temperatures, and features a plastic component for cost-effectiveness and weight reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the seal element is placed in direct contact with the window pane in the closed position, then effective sealing is achieved during driving, but ice formation occurs at low temperatures when the vehicle is parked
Solution Approach 1:
The seal assembly is designed with dynamic adaptability: in the driving position, the seal element contacts the window pane for effective sealing, while in the parked position at low temperatures, the seal element is spaced from the window pane to prevent ice formation. This dynamic behavior allows the system to adapt to different operational conditions.
Solution Approach 2:
The wedge-shaped thickened section is positioned in advance to create a predetermined spacing between the seal element and the window pane when the vehicle is parked. This preliminary geometric arrangement prevents ice formation before it can occur, eliminating the need for subsequent heating or vibration to remove ice.
2Object-affected harmful factors
If the wedge-shaped thickened section is added to the window pane, then spacing from the seal element is achieved to prevent ice formation, but the device complexity increases
Solution Approach 1:
The wedge-shaped thickened section is integrated directly into the window pane structure itself, merging the ice prevention function with the existing window pane component. This eliminates the need for separate mechanisms or additional parts, thereby preventing ice formation without significantly increasing device complexity.
Solution Approach 2:
The wedge-shaped thickened section is located only at specific regions of the window pane where spacing from the seal element is needed to prevent ice formation, while other regions maintain their original design. This localized modification achieves the desired function with minimal impact on overall structural complexity.
3Object-affected harmful factors
If the outer seal element is spaced from the thickened section in parked state, then ice formation is prevented, but wind noise increases during driving operation
Solution Approach 1:
The seal assembly dynamically adjusts its position relative to the window pane: during driving operation, the outer seal element contacts the thickened section to eliminate wind noise, while when parked at low temperatures, the spacing prevents ice formation. This dynamic adaptation resolves the contradiction between noise prevention and ice prevention.
Data Source
AI summary
A window pane assembly for a vehicle includes a window pane that moves in a receiving gap of a receiving shaft between a closed position and an open position. The window pane completely covers a window opening in the closed position and at least partially exposes the window opening in the open position. The window pane includes a first edge region facing the vehicle roof and a second edge region located opposite the first edge region and received in the receiving gap of the receiving shaft. The window pane has a wedge-shaped thickened section on an outer face of the window pane at the second edge region. The thickened section engages an outer seal element when the window is set in the closed position and the vehicle is driving. The thickened section is spatially separated from the outer seal element when the vehicle is parked.