Heat-Shielding Panel Structure to Block Air Circulation
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Solution Overview
Problem
Existing heat-shielding sheets with air layers face challenges in achieving effective heat-isolating functions due to circulating air, which compromises their ability to isolate heat effectively.
Innovation Solution
A heat-shielding panel comprising a pair of sheets with a spacer in between, forming an enclosed space that prevents fluid circulation, utilizing air with low thermal conductivity to enhance heat-isolating and heat-shielding functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If an air layer is used in heat-shielding sheets, then heat-isolating function is improved, but air circulation in the air layer causes heat conduction that reduces effectiveness
Solution Approach 1:
The air layer is segmented into multiple smaller air spaces by inserting insulating sheets (such as foam sheets or honeycomb structures) between the heat-shielding sheets. This segmentation prevents large-scale air circulation while maintaining the low thermal conductivity benefit of air, thereby resolving the contradiction between heat isolation and heat conduction through air movement.
Solution Approach 2:
Insulating sheets are introduced as intermediary elements within the air layer. These intermediaries physically block air circulation paths while still allowing the air spaces to provide thermal insulation. The insulating sheets act as mediators that prevent harmful air convection while preserving the beneficial thermal isolation properties of the air layer.
2Stability of the object's composition
If heat-shielding sheets are made large (900 mm or above), then structural stability is improved, but bending and warping increase
Solution Approach 1:
The large heat-shielding panel is segmented into multiple smaller sections by inserting insulating sheets at regular intervals. This segmentation creates smaller, more manageable units that are less prone to bending and warping, while the overall assembled structure maintains large-scale structural stability. The insulating sheets act as internal supports that divide the panel into rigid segments.
Solution Approach 2:
The heat-shielding panel is constructed as a composite structure combining heat-shielding sheets with insulating sheets (such as foam or honeycomb materials). This composite construction provides both the heat-shielding functionality and additional structural rigidity, preventing bending and warping while maintaining overall structural stability at large dimensions.
3Ease of manufacture
If a single-side corrugated heat-shielding sheet is used, then manufacturing simplicity is improved, but heat-isolating function is insufficient
Solution Approach 1:
The invention merges a heat-shielding sheet with an insulating sheet into a single integrated panel structure. The heat-shielding sheet provides radiation reflection, while the insulating sheet (with its air spaces or cellular structure) provides thermal conduction resistance. This combination achieves effective heat isolation while maintaining manufacturing simplicity through integrated production methods.
Solution Approach 2:
The panel is constructed as a composite material system combining heat-shielding materials (such as aluminum-evaporated sheets) with insulating materials (such as foam or honeycomb structures). This composite approach delivers both heat-shielding and heat-isolating functions in a single manufactured product, overcoming the limitations of single-side corrugated sheets while maintaining ease of manufacture through established composite production techniques.
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 panel achieves both heat-shielding and heat-isolating functions by using air in the enclosed space, suppressing bending and warping, and maintaining structural integrity while reducing manufacturing costs.
Implementation Method 1
the stagnant air is not easy to conduct heat. In other words, the circulating air conducts heat. Because air circulates in the air layer of the heat-shielding sheet described in Patent Document 1, the heat-isolating function is difficult to realize.
Implementation Method 2
the stagnant air is not easy to conduct heat. In other words, the circulating air conducts heat.
Implementation Method 3
The heat-shielding sheet can reflect radiation of sunlight through the aluminum film-evaporated lining board.
Implementation Method 4
The heat-shielding sheet can reflect radiation of sunlight through the aluminum film-evaporated lining board.
Data Source
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AI summary
The present disclosure provides a heat-shielding panel having a heat-shielding function and a heat-isolating function, and a prefabricated building constructed by arranging a plurality of heat-shielding panels adjacently. The heat-shielding panel (1) of the present disclosure includes a pair of sheets (10, 20) and an enclosed space (30). The pair of sheets (10, 20) are provided with an exposed surface respectively, and back faces of the pair of sheets (10, 20) are oppositely arranged at intervals. The pair of sheets (10, 20) are formed by heat-shielding sheets (12). The enclosed space is arranged between the pair of sheets (10, 20). The enclosed space is formed by sandwiching a spacer (31) between the pair of sheets (10, 20). A fluid such as air is enclosed in the enclosed space.