Insulating Bar Hollow Chamber Solid Profile Balance
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Solution Overview
Problem
Existing thermally insulated profiles face a trade-off between mechanical rigidity and thermal resistance, as more stable materials typically have higher thermal conductivity, and current insulating bars do not optimally combine mechanical and thermal properties.
Innovation Solution
The design incorporates a hollow chamber profile section that tapers at an angle of 35° to 55° into a solid profile bar section, with the hollow chamber profile sections primarily at the connection strips for enhanced stability and the profile bar section in the middle for improved insulation, allowing for a better balance of mechanical and thermal properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If hollow chamber profile sections are used throughout the insulating bar, then thermal insulation is improved, but mechanical rigidity deteriorates
Solution Approach 1:
The insulating bar features different cross-sectional structures in different regions: hollow chamber profile sections at the terminal ends for thermal insulation, and a solid profile bar section in the middle for mechanical strength. This local differentiation allows each region to be optimized for its specific function.
Solution Approach 2:
The insulating bar is divided into distinct segments: terminal connection strips, hollow chamber profile sections, and a solid profile bar section in the middle. This segmentation allows the hollow chambers to be positioned where thermal insulation is most needed while maintaining structural integrity through the solid central section.
2Strength
If solid profile bar section is used throughout the insulating bar, then mechanical rigidity is improved, but thermal insulation deteriorates
Solution Approach 1:
The insulating bar features different cross-sectional structures in different regions: hollow chamber profile sections at the terminal ends for thermal insulation, and a solid profile bar section in the middle for mechanical strength. This local differentiation allows each region to be optimized for its specific function.
3Loss of energy
If hollow chamber profile section runs through the entire insulating bar, then thermal insulation is maximized, but stability at connection strips deteriorates
Solution Approach 1:
The insulating bar features different cross-sectional structures in different regions: hollow chamber profile sections at the terminal ends for thermal insulation, and a solid profile bar section in the middle for mechanical strength. This local differentiation allows each region to be optimized for its specific function.
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 configuration achieves high stability and rigidity where needed while maintaining low heat transfer and preventing heat buildup, allowing for effective thermal insulation and mechanical support.
Implementation Method 1
the cavities or hollow chambers of the hollow profiles are intended to reduce the heat transport via the insulating web
Data Source
Figure 1
Figure 2
Figure 3~5B
AI summary
The bar (5) has two terminal connection strips (7) for connecting the bar with profile elements, and a hollow chamber profile section (11) connected with the connection strips. The hollow chamber profile section is connected with a profile bar section (15). The connection strips are alternatively connected together by the profile bar section. The profile bar section is extended over 20 percent of length of the insulating bar. The chamber profile section is arranged on half the length of the insulating bar, where the insulating bar is made by an extruded profile made of thermoplastic. An independent claim is also included for a heat insulated profile comprising an insulating bar.