Solar Cell Panel Cover with Colored Portions for Glare Reduction
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Solution Overview
Problem
Solar cell panels with building integrated structures face challenges in aesthetics and glare reduction, particularly when installed on vertical walls, as conventional designs often reveal solar cells and wiring, limiting their visual appeal and efficiency due to glare phenomena and color limitations.
Innovation Solution
A solar cell panel design incorporating a first cover member with a colored portion of lower light transmittance and a second cover member with lower brightness, strategically positioned to create a desired color or pattern, while minimizing the visibility of solar cells and interconnectors, thereby enhancing aesthetics and preventing glare.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a solar cell panel having a building integrated structure is installed on an outer wall, then light conversion can be performed in a wide area, but a glazing phenomenon occurs at the front surface
Solution Approach 1:
The patent applies a colored coating layer on the front surface of the solar cell panel that selectively absorbs certain wavelengths of light while transmitting others. This colored layer reduces the glazing phenomenon by modifying the optical properties of the surface, preventing excessive reflection and creating a more aesthetically pleasing appearance while maintaining light conversion efficiency.
2Shape
If the solar cell panel is designed to improve aesthetics, then appearance is enhanced, but solar cells and wiring become more visible
Solution Approach 1:
The patent employs different colored coating regions corresponding to different functional areas of the solar cell panel. The active solar cell areas receive one color treatment while the inactive areas with wiring receive different color treatments or patterns. This local differentiation allows the panel to maintain aesthetic appeal while strategically masking the visibility of solar cells and interconnectors in specific regions.
Solution Approach 2:
The patent modifies optical parameters such as light transmittance, reflectivity, and absorption characteristics through colored coatings and patterns. By adjusting these optical parameters across different regions of the panel, the design achieves improved aesthetics while controlling the visibility of underlying solar cell structures and wiring.
3Shape
If a colored portion with lower light transmittance is formed on the first cover member, then a desired color or pattern is created, but light loss increases
Solution Approach 1:
The colored portion is applied selectively to specific regions of the first cover member rather than uniformly across the entire surface. This localized application ensures that areas requiring aesthetic enhancement receive the colored treatment while areas requiring maximum light transmission remain transparent or have minimal coloring, thus balancing aesthetic goals with energy efficiency.
Solution Approach 2:
The patent optimizes the optical parameters of the colored portion by controlling its thickness, color composition, and spatial distribution. These parameter adjustments ensure that the colored regions provide desired aesthetic effects while minimizing the overall light loss and maintaining adequate light transmission for solar cell operation.
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 design improves the visual appeal of solar cell panels by creating a uniform color or pattern, reduces the visibility of solar cells and interconnectors, and minimizes light loss, maintaining efficiency while preventing glare phenomena.
Implementation Method 1
a colored portion having a lower light transmittance than the base member and partially formed on the base member to form a colored region
Implementation Method 2
solar cells are attracting attention as a next generation battery which converts solar energy into electric energy
Data Source
AI summary
A solar cell panel includes a solar cell; a sealing member for sealing the solar cell; a first cover member positioned at a first surface of the solar cell on a first side of the sealing member; and a second cover member positioned at a second surface of the solar cell on a second side of the sealing member. The first cover member includes a base member and a colored portion having a lower light transmittance than the base member and partially formed on the base member to form a colored region. The second cover member includes a cover portion having a lower brightness than the colored portion and positioned at least an inactive region where the solar cell is not positioned.