Spacer Profile Reinforcement Layer Bending Speed
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Solution Overview
Problem
Existing spacer profiles for insulating window units face challenges in achieving high thermal insulation and fast bending processes while maintaining impermeability and 'warm edge' conditions, with limitations in bending speed due to deformation risks at longer distances from the bending radius.
Innovation Solution
A spacer profile design incorporating a thinner reinforcement layer with higher strength and elastic modulus, integrated with a diffusion barrier layer, allows for increased bending speed and improved thermal insulation by extending the heat conduction path and reducing the thickness of the diffusion barrier layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the diffusion barrier layer is made thicker to improve impermeability, then gas and vapor impermeability is improved, but heat transmission increases and thermal insulation performance deteriorates
Solution Approach 1:
The patent applies composite materials by combining a diffusion barrier layer with a reinforcement layer to create a multi-layer structure. The diffusion barrier layer (e.g., aluminum oxide, silicon oxide) provides impermeability, while the reinforcement layer (e.g., aluminum, steel) provides mechanical strength and reduced thermal conductivity. This composite structure allows the barrier layer to be thinner while maintaining both impermeability and thermal insulation performance.
2Ease of manufacture
If the spacer profile is bent at longer distances from the bending radius to increase flexibility, then ease of manufacture is improved, but unintended deformations occur and manufacturing precision deteriorates
Solution Approach 1:
The reinforcement layer made of metal materials with high strength and appropriate elastic modulus provides the necessary structural support during bending operations. This allows the spacer profile to be bent at longer distances from the bending radius without suffering from unintended deformations, as the reinforcement layer maintains dimensional stability and prevents excessive flexibility that would cause precision loss.
3Productivity
If the bending speed is increased to improve productivity, then productivity is improved, but unintended deformations occur and manufacturing precision deteriorates
Solution Approach 1:
The combination of diffusion barrier layer and reinforcement layer creates a composite structure with optimized mechanical properties. The reinforcement layer's high strength and appropriate elastic modulus allow the profile to withstand higher bending speeds without deformation, enabling increased productivity while maintaining manufacturing precision. The composite structure distributes stresses more effectively during high-speed bending operations.
4Strength
If a thicker reinforcement layer is used to increase strength, then strength is improved, but heat conduction increases and thermal insulation performance deteriorates
Solution Approach 1:
The patent applies local quality by making the reinforcement layer thinner than the diffusion barrier layer, concentrating the necessary strength properties where most needed while minimizing the thermal conduction path. The reinforcement layer is strategically positioned and dimensioned to provide local structural support without creating a continuous thick thermal bridge, thus maintaining overall thermal insulation performance while achieving required strength.
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 enables a high-quality bending process with increased maximum bending speed, enhanced thermal insulation, and improved impermeability, effectively addressing the limitations of existing spacer profiles.
Implementation Method 1
Preferably, less heat is transferred through the comparatively thinner reinforcement layer
Implementation Method 2
spacer profiles have a diffusion barrier layer which seals the intervening space between the panes from the surroundings
Data Source
AI summary
A spacer profile for use as a spacer frame in an insulating window unit includes a profile body made of a synthetic material and having an inner wall, an outer wall and sidewalls, which define a chamber for hygroscopic material. A diffusion barrier layer is made of a first metal material and has a first tensile strength and a first thickness. The diffusion barrier layer is disposed at least on or in the outer wall and at least a portion of the sidewalls. A reinforcement layer is made of a second metallic material and has a second tensile strength and a second thickness. The reinforcement layer is formed in the inner wall or on the side of the inner wall, which is directed towards the chamber. The multiplication product of the second thickness and the second tensile strength is preferably greater than the multiplication product of the first thickness and the first tensile strength.