Multiple Glazing Structure for Vacuum Glass Warpage Suppression
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Solution Overview
Problem
Vacuum insulated glass in multiple glazing experiences significant warpage due to its high insulation performance, causing both glass plates to warp in the same direction, which can lead to structural issues.
Innovation Solution
Incorporating a third glass plate or laminated glass with a larger thickness than the vacuum insulated glass, along with a gas layer, to utilize thermal expansion and shrinkage to counteract the warping effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If vacuum insulated glass is used to achieve high insulation performance, then thermal insulation is improved, but warpage of the glass plates occurs due to temperature difference
Solution Approach 1:
The invention changes the physical parameter of the third glass plate (thickness) to be greater than that of the vacuum insulated glass. This parameter change increases the flexural rigidity of the third glass plate, enabling it to resist warpage induced by thermal expansion and contraction in the vacuum insulated glass, thereby resolving the contradiction between maintaining high insulation performance and preventing shape distortion.
2Shape
If the third glass plate has larger thickness than the vacuum insulated glass, then warpage is suppressed, but device complexity increases
Solution Approach 1:
The invention segments the glazing system into distinct functional layers: the vacuum insulated glass unit (providing insulation) and the third glass plate (providing structural support and warpage resistance). By separating these functions into different components with optimized thicknesses, the system achieves warpage suppression without requiring complex integrated structures, thus resolving the contradiction between shape stability and device simplicity.
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 additional glass plate or laminated glass with increased thickness effectively suppresses warpage by providing greater flexural rigidity, preventing significant bending and maintaining structural integrity.
Implementation Method 1
utilizing thermal expansion or thermal shrinkage of the gas layer formed between the third glass plate or the laminated glass and the vacuum insulated glass
Implementation Method 2
The vacuum layer suppresses, among the three mode of heat transfer (radiation, conduction and convection), conduction and convection and develops high insulation performance
Data Source
AI summary
To provide a technology to suppress warpage of a vacuum insulated glass caused by high heat insulating property of the vacuum insulated glass. A multiple glazing comprises a vacuum insulated glass having a first glass plate, a vacuum layer and a second glass plate in this order in a predetermined direction, a gas layer, and a third glass plate or a laminated glass in this order in the above predetermined direction. A thickness of the third glass plate or the laminated glass is larger than a thickness of the vacuum insulated glass.