Foam Wall Structure with Self-Adhered Density Layers
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Solution Overview
Problem
Existing foam wall structures face challenges in meeting strict industry insulation requirements while maintaining structural strength and minimizing material and labor costs.
Innovation Solution
A foam wall structure design featuring a frame with a high-density foam layer around the perimeter and a low-density foam layer within the cavity, both self-adhered to the foam panel, allowing for efficient manufacturing and assembly without excessive material or labor costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a foam wall structure uses uniform high-density foam throughout the cavity to ensure structural strength, then racking shear strength is improved, but material costs increase
Solution Approach 1:
The patent applies local quality by using high-density foam only in specific locations (perimeter regions and/or diaphragm regions) where structural strength is most needed, while using lower-density foam in other cavity regions. This localized differentiation maintains racking shear strength while reducing overall material costs compared to using uniform high-density foam throughout the entire cavity.
Solution Approach 2:
The patent segments the foam insulation into multiple regions with different density characteristics. The cavity is divided into perimeter regions, diaphragm regions, and other regions, each potentially filled with foam of different densities. This segmentation allows optimization of material placement to achieve structural requirements at lower cost.
2Quantity of substance
If a foam wall structure uses uniform low-density foam throughout the cavity to reduce material costs, then material costs are reduced, but thermal insulation performance deteriorates
Solution Approach 1:
The patent applies local quality by using lower-density foam only in specific cavity regions where structural support is provided by the perimeter foam, while maintaining adequate thermal insulation. This localized differentiation allows cost reduction while preserving overall insulation performance through the combined effect of different foam regions.
Solution Approach 2:
The patent segments the foam insulation into multiple regions with different density characteristics. The cavity is divided into perimeter regions, diaphragm regions, and other regions, each potentially filled with foam of different densities. This segmentation allows optimization of material placement to achieve structural requirements at lower cost.
3Reliability
If a foam wall structure uses complex multi-layer foam configurations to optimize both strength and insulation, then performance is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies dynamics by providing flexibility in the foam application process. The foam can be applied in different sequences, patterns, and densities depending on the specific manufacturing capabilities and requirements. The system allows for dynamic adjustment of foam application strategies while maintaining the benefits of multi-region foam differentiation.
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 design achieves high racking shear strength and effective thermal insulation while reducing material costs, with the high-density foam providing structural support and the low-density foam ensuring insulation requirements are met.
Implementation Method 1
both self-adhered to the foam panel
Data Source
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AI summary
Foam wall structures and methods for making foam wall structures. The wall structures include a frame (12, 14, 16), a foam panel (70) overlying a front surface of the frame, a first foam layer (30) disposed in a cavity defined by the frame and the foam panel, in which the first foam layer self-adheres to one or more members of the frame, and a second foam layer (31) disposed in the cavity. The second foam layer self-adheres to the first foam layer and has a density that is less than the density of the first foam layer.