Composite Window Sash Profile for Thermal Insulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing composite window sashes with double sash frames made of aluminum profiles suffer from inadequate thermal insulation, leading to condensation issues and increased costs due to the need for specialized cross-sections and dimensions, which compromise both thermal performance and aesthetics.
Innovation Solution
A window or balcony door design featuring an inner load-bearing frame made of a composite plastic/aluminum profile for the double or triple heat protection pane, with a standard cross-section and dimensions, and an outer plastic sash frame carrying the outer glass pane, utilizing spaced-apart seals and cold bridge interruptions to enhance thermal insulation and aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If aluminum profiles are used for the double sash frame, then aesthetic appearance and load-bearing capacity are improved, but thermal insulation deteriorates leading to condensation
Solution Approach 1:
The patent applies composite materials by combining aluminum and plastic in a hybrid profile system. The aluminum components provide structural strength and aesthetic appearance, while the plastic components provide thermal insulation. This composite approach resolves the contradiction between load-bearing capacity and thermal insulation by integrating both material properties in a single system.
Solution Approach 2:
The patent uses plastic intermediate elements as mediators between aluminum profile parts to interrupt cold bridges. These intermediary plastic components prevent direct thermal contact between aluminum elements, thereby improving thermal insulation while maintaining the structural integrity provided by the aluminum framework.
2Loss of energy
If specialized cross-sections and dimensions are used for the double sash frame, then thermal insulation is improved, but device complexity and cost increase
Solution Approach 1:
The patent achieves universality by designing the hybrid profile system to use standard, commercially available aluminum and plastic components rather than specialized custom profiles. The modular construction allows the same basic profile types to be used across different window configurations, reducing complexity while maintaining thermal insulation performance through the hybrid material combination.
3Loss of energy
If the sash frame is made entirely of plastic, then thermal insulation is improved, but load-bearing capacity and aesthetic appearance deteriorate
Solution Approach 1:
The patent applies local quality by assigning different materials to different functional zones of the profile. Aluminum is used in regions requiring high strength and aesthetic visibility, while plastic is used in regions requiring thermal insulation. This localized material distribution optimizes both load-bearing capacity and thermal insulation without requiring the entire structure to be made of a single material.
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 provides improved thermal insulation, prevents condensation, and maintains an aluminum-like appearance while reducing costs by using standard profiles and allowing for the integration of blackout blinds, achieving better heat-insulating properties and aesthetic appeal.
Implementation Method 1
which protects it against the ingress of dust, however is ventilated through its own cutouts
Implementation Method 2
Said pole profile is advantageously made of aluminum and has the known cold bridge interruption by means of intermediate elements made of plastic
Data Source
Figure 1
AI summary
Aligned towards an inner space, a casement's (2) inner frame is made from an aluminum/plastic linked profiled frame with its plastic part (2b) having all the supporting functions of a casement and a second casement frame (22) aligned outwards while an aluminum part (2a) has a support (2d) for affixing a heat-insulation pane (3) and a limit stop (2e) for attaching a seal (2c).