Laminated Glazing Step-Shaped Functional Portion
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Solution Overview
Problem
The challenge in laminated glazing is achieving efficient lamination with functional layers while maintaining optimal adhesion to glass substrates without compromising optical characteristics or causing thickness-related optical distortion, especially when functional layers are smaller, requiring different lamination parameters and compensation.
Innovation Solution
A laminated glazing design featuring a step-shaped functional portion with two stacks of components, where the functional layers are placed in a second stack and bonded to the exterior surface of the interior glass layer, avoiding thickness compensation and allowing for separate lamination processes, reducing weight, cost, and aesthetic issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If functional layers are integrated into the main laminate stack, then adhesion to glass substrates is improved, but optical distortion occurs due to thickness variations
Solution Approach 1:
The laminate is divided into two separate stacks: a first stack containing glass layers and bonding layers, and a second stack containing functional layers. This segmentation allows each stack to be optimized independently, preventing optical distortion while maintaining adhesion requirements.
Solution Approach 2:
The functional layers are positioned in a separate dimensional stack rather than being integrated into the main laminate thickness. The second stack is disposed on and bonded to the exterior surface of the interior glass layer, creating a step-shaped configuration that adds functionality without compromising the optical path of the first stack.
2Adaptability or versatility
If different lamination parameters are used for functional layers, then functional characteristics are optimized, but manufacturing complexity increases
Solution Approach 1:
The manufacturing process is segmented into separate lamination operations for the first stack and second stack. This allows different lamination parameters to be applied to each stack independently, optimizing functional characteristics while managing manufacturing complexity through modular processing.
Solution Approach 2:
The first stack is laminated separately before the functional layers are added in the second stack. This preliminary action allows the structural laminate to be established first, then functional layers are integrated in a subsequent step, enabling optimized parameters for each function without requiring simultaneous multi-parameter control.
3Adaptability or versatility
If functional layers are added to the laminate, then solar control and other functions are improved, but weight increases
Solution Approach 1:
Functional layers are applied locally to specific regions where they are needed (e.g., solar control zones) rather than covering the entire glazing area. This localized approach provides solar control functionality where required while minimizing the overall weight increase of the glazing system.
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
This approach enables efficient production of laminated glazing with functional layers, reducing weight and cost, and addressing optical distortion concerns, while maintaining structural integrity and functional capabilities, such as solar control and occupant retention.
Implementation Method 1
at least one plastic bonding layer located between inner surfaces of said exterior and interior glass layers
Data Source
AI summary
A laminated glazing with at least one step-shaped functional portion comprising two stack of components, the main stack of components in which the alteration of its properties is not desirable, and a second stack of components comprising a functional layer.