Foam Wall Structure with Nested Panels and Partial Adhesion
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Solution Overview
Problem
Current insulated wall panel solutions, such as pre-fabricated panels and Structural Insulated Panels (SIPs), face challenges in meeting strict insulation requirements while minimizing material and labor costs, and often result in inconsistent insulation performance and increased waste due to the need for additional materials and on-site installation.
Innovation Solution
A foam wall structure comprising a frame with a first foam panel attached to the front surface and a second foam panel positioned within a cavity, where a foam layer adheres to both panels, reducing material usage and waste by allowing a portion of the second foam panel's surface to remain exposed, thus maintaining structural strength and meeting insulation standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a foam layer is applied to fill the entire cavity in conventional foam wall structures, then thermal insulation performance is improved, but material costs and waste increase
Solution Approach 1:
The patent places a second foam panel inside the cavity formed by the frame and first foam panel, creating a nested structure where the foam layer only needs to fill gaps and adhere to the second foam panel's exposed rear surface, significantly reducing foam material quantity while maintaining insulation performance
Solution Approach 2:
The foam layer is applied partially rather than filling the entire cavity - it adheres to the second foam panel and covers its rear surface, leaving portions of the rear surface exposed. This partial application reduces material usage while still achieving the required thermal performance through the multi-layer foam panel structure
2Reliability
If additional materials and on-site installation are used to meet insulation requirements, then insulation performance is improved, but construction time and labor costs increase
Solution Approach 1:
The wall panels are pre-fabricated with the frame, first foam panel, and second foam panel assembled together before reaching the construction site. This preliminary assembly eliminates on-site insulation installation steps, reducing construction time and labor costs while ensuring consistent insulation performance
Solution Approach 2:
The patent combines the frame, first foam panel, and second foam panel into a single integrated pre-fabricated wall panel assembly. This merging of components into one unit eliminates the need for separate insulation installation by subcontractors, streamlining the construction process
3Ease of operation
If fiberglass batting is used for insulation, then installation flexibility is improved, but thermal performance and air barrier properties deteriorate
Solution Approach 1:
The patent changes the material parameter from fiberglass batting to rigid foam panels with specific R-values. The first foam panel and second foam panel are selected with thicknesses and R-values that meet or exceed insulation requirements, providing superior thermal performance and air barrier properties compared to fiberglass while maintaining ease of installation through pre-fabrication
4Adaptability or versatility
If door and window cut-outs are created in foam wall structures, then functional requirements are met, but waste foam panel material increases
Solution Approach 1:
The patent segments the foam insulation into two separate panels (first foam panel and second foam panel) positioned at different locations within the wall structure. This segmentation allows door and window cut-outs to be made in the first foam panel without compromising the second foam panel, reducing waste and maintaining insulation continuity
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 solution provides improved thermal performance, reduced material and labor costs, and a smoother interior surface while satisfying strict insulation requirements, with the foam layer securing the second foam panel and enhancing structural integrity.
Implementation Method 1
a foam layer located within the cavity, wherein the foam layer adheres to the first foam panel and the second foam panel
Implementation Method 2
Insulated wall panels provide thermal insulation for residential homes and buildings. A wall panel's R-value reflects its ability to impede heat flow
Data Source
AI summary
Wall structures and methods of manufacturing wall structures are described in this specification. The wall structures include a frame, a first foam panel attached to the frame, a second foam panel disposed in a cavity defined by the frame, and a foam layer.