Two-Chamber Insulating Glass Spacers for Moisture and Gas Filtration
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Solution Overview
Problem
Existing insulating glass units face issues with argon diffusion, condensation, and corrosion due to hydrogen sulfide and organic vapors, leading to increased thermal conductivity and manufacturing costs.
Innovation Solution
A spacer with two chambers and a moisture vapor barrier film is used to incorporate desiccants and filters, allowing for parallel or serial gas pathways and dynamic desiccation, reducing condensation and maintaining low thermal conductivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If argon gas is used in sealed insulating glass units, then thermal insulation performance is improved, but argon diffuses out causing glass concavity and increased manufacturing cost
Solution Approach 1:
The patent replaces expensive, non-renewable argon gas with inexpensive, renewable air. The spacer incorporates desiccants and filters that continuously regenerate by absorbing contaminants and moisture during normal operation, making the air filling effectively renewable and eliminating the need for expensive sealed argon environments.
Solution Approach 2:
The spacer recovers and removes contaminants (hydrogen sulfide, organic vapors, moisture) from the air filling through integrated desiccants and filters. This allows the air to be continuously purified and reused, maintaining insulating performance without gas loss or concavity issues.
2Ease of manufacture
If air is used between window panes, then manufacturing cost is reduced, but moisture condenses on window surfaces and contaminants cause corrosion
Solution Approach 1:
The spacer extracts and removes harmful components (moisture, hydrogen sulfide, organic vapors) from the air filling through integrated desiccants and filters. This purification process eliminates condensation and corrosion risks while maintaining the cost advantages of using air instead of expensive noble gases.
Solution Approach 2:
The spacer acts as an intermediary between the air filling and the glass panes, filtering out contaminants and moisture before they can cause harm. The desiccants and filters serve as mediating substances that protect the glass surfaces from condensation and corrosion while allowing the simple air filling to be used.
3Reliability
If complex sealing systems with multiple layers are used, then moisture barrier performance is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent combines multiple functions (structural support, moisture absorption, contaminant filtration, gas pathway management) into a single integrated spacer component. The desiccants and filters are incorporated directly into the spacer structure, eliminating the need for separate sealing layers and complex multi-component assemblies.
Solution Approach 2:
The spacer serves multiple functions simultaneously: it maintains glass pane spacing, provides structural support, absorbs moisture through desiccants, filters contaminants through activated carbon, and manages gas flow pathways. This multi-functionality reduces the need for additional specialized components and simplifies the overall assembly.
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 effectively removes moisture and contaminants, maintaining low thermal conductivity while being cost-efficient and reducing manufacturing costs.
Implementation Method 1
A first desiccant body is disposed in the first chamber and a second desiccant body is disposed in the second chamber
Implementation Method 2
A gas filter is disposed in the first chamber and/or the second chamber
Implementation Method 3
maintaining low thermal conductivity
Data Source
AI summary
Insulating glass units and spacers for securing the glass panes in insulating glass units are disclosed. The spacers may include a first chamber and second chamber formed therein. Particulate filters, gas filters (e.g., activated carbon for removing organics), desiccant bodies, getters (e.g., hydrogen sulfide getters) and combinations thereof may be disposed in the first and/or second chambers.