Heat-Ray-Transmissive Base Material with Segmented Infrared Layers
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Solution Overview
Problem
Existing heat-ray-transmission-controllable, light-transmissive base materials cannot independently control heat-insulating capability and heat-shielding capability, making it difficult to meet specific thermal management requirements in different environments.
Innovation Solution
A heat-ray-transmission-controllable, light-transmissive base material is developed, comprising a light-transmissive insolation-cutting unit and a transparent conductive oxide layer, with an optical interference layer having an optical thickness of 50 nm to 150 nm, allowing independent control of heat-insulating and heat-shielding capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the thickness of the core layer of the infrared-reflective layer is increased to increase heat-insulating capability, then heat-shielding capability is also increased simultaneously, making it impossible to independently control heat-insulating capability and heat-shielding capability
Solution Approach 1:
The patent divides the single infrared-reflective layer into two separate functional layers: a first infrared-reflective layer containing silver or silver alloy for heat-shielding capability, and a second infrared-reflective layer with different material composition for heat-insulating capability. This segmentation allows each layer to be optimized independently for its specific function, enabling independent control of heat-shielding and heat-insulating properties without the trade-off present in conventional single-layer designs.
2Adaptability or versatility
If a single infrared-reflective layer is used to provide both heat-shielding and heat-insulating capabilities, then the structure is simple, but it cannot meet specific thermal management requirements in different environments such as cold areas requiring high insulation and low shielding
Solution Approach 1:
The patent segments the thermal management function into two distinct layers with different material compositions and optical properties. The first layer uses silver or silver alloy optimized for heat-shielding, while the second layer uses materials optimized for heat-insulation. This segmentation enables the base material to be adapted to different environmental requirements by adjusting the thickness and properties of each layer independently, providing versatility for various applications from hot to cold climates.
Solution Approach 2:
The patent employs composite material structures where the first infrared-reflective layer uses silver or silver alloy combined with transparent resin, and the second infrared-reflective layer uses different material compositions. This composite approach allows each layer to contribute its specific thermal management properties, creating a multi-functional coating system that can be tailored for different environmental conditions while maintaining overall structural integrity and optical performance.
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 material effectively controls both heat-insulating and heat-shielding capabilities independently, enabling tailored thermal performance for various applications, such as in cold areas requiring high insulation and low shielding.
Implementation Method 1
an optical interference layer over the transparent conductive oxide layer, wherein an optical thickness of the optical interference layer, namely, a product of a refractive index and a physical thickness is greater than or equal to 50 nm and less than or equal to 150 nm
Implementation Method 2
a transparent conductive oxide layer disposed over the light-transmissive insolation-cutting unit, containing a transparent conductive oxide
Implementation Method 3
base materials have been studied conventionally that reflect part of visible light and near-infrared rays of sunlight or the like, to provide heat-shielding capability
Data Source
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AI summary
A heat-ray-transmission-controllable, light-transmissive base material is provided that includes a light-transmissive insolation-cutting unit configured to control transmission of light in at least a part of wavelength regions among wavelength regions of visible light and near-infrared light; and a transparent conductive oxide layer disposed over the light-transmissive insolation-cutting unit, containing a transparent conductive oxide.