Window Frame Thermal Barrier Using Fiberglass Pultruded Strut
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Solution Overview
Problem
Commercially available window and door frames with metal frames suffer from significant heat transfer due to the lack of structural support from thermal insulation members, which are additional costly components that require external pressure to maintain the structure.
Innovation Solution
A metal frame system incorporating fiberglass pultrusion struts that act as both thermal barriers and structural reinforcements, creating channels within the frame members to secure the strut in place without direct contact, thereby providing insulation and support simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If thermal barriers are used to create insulation between frame members, then thermal insulation is improved, but structural support is worsened because they are merely additional components that do not provide structural support
Solution Approach 1:
The patent merges the thermal barrier function with the structural support function by integrating the insulation material directly into the frame member structure. The frame member includes an insulating layer formed within the structural profile, combining what were previously separate components into a single integrated element that provides both thermal insulation and structural support.
Solution Approach 2:
The frame member is designed to perform multiple functions simultaneously: it provides structural support through its metal construction while also providing thermal insulation through the integrated insulating layer. This multi-functional design eliminates the need for separate thermal barrier components.
2Temperature
If thermal insulation members are added as additional components, then thermal insulation is improved, but device complexity and construction time are worsened
Solution Approach 1:
The patent combines multiple functions into a single frame member component. The insulating layer is formed as an integral part of the frame member structure during the extrusion process, eliminating the need for separate thermal barrier components and simplifying the overall assembly.
Solution Approach 2:
The insulating layer is pre-formed within the frame member structure during the extrusion manufacturing process, rather than being added as a separate component during assembly. This preliminary integration reduces construction time and simplifies installation.
3Strength
If metal frames are used, then structural strength is improved, but heat transfer is worsened due to high thermal conductivity
Solution Approach 1:
The frame member is constructed as a composite structure combining metal (for structural strength) with insulating material (for thermal resistance). The metal provides the required structural integrity while the insulating layer reduces heat transfer, creating a composite material solution that balances both requirements.
Solution Approach 2:
The frame member has different properties in different regions: the metal portions provide structural strength and rigidity, while the insulating layer portions provide thermal resistance. This local differentiation of material properties allows the single component to simultaneously address both structural and thermal requirements.
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 solution results in a self-supporting frame system that maintains thermal insulation without the need for large glass panels or substantial components, enhancing structural integrity while reducing construction costs and time.
Implementation Method 1
The strut creates a thermal barrier between the first frame member and the second frame member
Implementation Method 2
fixedly secured within the first channel at least in part by use of an adhesive
Data Source
AI summary
A frame for a window or a door, or both, is provided. The frame includes at least two metal frame members which are separated. A thermal strut engages both frame members, creating a thermal barrier between the frame members and acting as a structural component of the frame.