Multi-Pane Glass Structure for Lightweight Inner Pane Protection
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Solution Overview
Problem
Multi-pane glass units with increased glass panes for improved heat insulation, soundproofing, and anti-dew condensation performance are heavy and prone to damage due to the increased weight and vulnerability of thinner glass panes.
Innovation Solution
A multi-pane glass unit design featuring a thinner inner glass pane with a unique offset circumference and different composition compared to outer panes, combined with spacers that either offset inward or protrude to protect the inner pane, ensuring reduced weight and enhanced durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the number of glass panes is increased to improve heat insulation and soundproofing, then thermal and acoustic performance is improved, but the weight of the multi-pane glass unit increases
Solution Approach 1:
The patent applies local quality by using different glass compositions in different positions within the multi-pane structure. The inner glass pane uses a composition optimized for thermal insulation (low thermal conductivity, low thermal expansion coefficient), while outer panes may use different compositions. This allows each layer to contribute differently to the overall thermal performance without uniformly increasing weight across all panes.
2Temperature
If the number of glass panes is increased to improve heat insulation and soundproofing, then thermal and acoustic performance is improved, but the durability decreases due to increased vulnerability of thinner glass panes
Solution Approach 1:
The patent employs composite materials by combining glass panes with different compositions and properties. The inner glass pane uses a specific composition (e.g., boroaluminosilicate glass) with low thermal expansion coefficient and high thermal stability, while outer panes may use different compositions (e.g., soda lime glass). This composite approach allows thinner inner panes to achieve required thermal insulation without compromising durability, as each material is selected for its specific strengths.
3Weight of stationary object
If the thickness of inner glass pane is reduced to decrease weight, then weight is reduced, but the strength and resistance to thermal stress decrease
Solution Approach 1:
The patent applies parameter changes by modifying the chemical composition of the glass to achieve desired properties at reduced thickness. The inner glass pane uses a composition with low thermal expansion coefficient and high thermal stability, which allows it to maintain strength and resist thermal stress even at thinner dimensions. This compositional parameter change enables weight reduction without sacrificing the necessary mechanical and thermal performance.
Data Source
AI summary
A multi-pane glass unit includes a first outer glass pane and a second outer glass pane facing each other, a first inner glass pane between the first outer glass pane and the second outer glass pane, a first spacer located between the first outer glass pane and the first inner glass pane, and a second spacer located between the second outer glass pane and the first inner glass pane.