Solar Panel Module Dark Insulating Gap for Thermal Stress
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Solution Overview
Problem
Conventional solar panel modules experience non-uniform thermal stress due to differences in heat absorption between transparent encapsulation materials and solar panels, leading to reduced service life and potential peeling or deterioration.
Innovation Solution
A solar panel module design featuring a separating gap with dark insulating layers that match the color and heat absorption of adjacent solar panels, ensuring uniform thermal expansion and contraction, and including a transparent encapsulation material with equal volumes on opposite edges of the dark insulating layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If transparent encapsulation material is used to connect adjacent solar panels, then the solar panels can be fixed and connected, but non-uniform thermal stress occurs due to different heat absorption rates, leading to peeling and reduced reliability
Solution Approach 1:
The patent changes the optical parameter (color/absorption rate) of the encapsulation material from transparent to dark-colored, matching the heat absorption characteristics of the solar panels. This parameter change ensures uniform thermal expansion and contraction, eliminating non-uniform thermal stress and preventing peeling while maintaining structural reliability.
Solution Approach 2:
The patent applies homogeneity by making the encapsulation material have the same color and heat absorption characteristics as the solar panels it connects. This creates uniform thermal properties across the entire assembly, ensuring that all components expand and contract at the same rate under thermal conditions, thereby preventing differential stress and peeling.
2Volume of moving object
If transparent encapsulation material with large filling volume is used, then adequate spacing is provided between solar panels, but non-uniform thermal stress is amplified under thermal expansion and contraction, reducing service life
Solution Approach 1:
The patent changes the color parameter of the encapsulation material to dark, matching the solar panels' heat absorption characteristics. This ensures that even with large filling volume providing adequate spacing, the thermal stress remains uniform across all components, preventing peeling and extending service life despite the substantial volume of encapsulation material present.
3Reliability
If dark insulating layer matching solar panel color is used in separating gap, then uniform heat absorption is achieved, but the structure becomes more complex with additional layers
Solution Approach 1:
The patent applies multi-functionality by using the encapsulation material to serve multiple purposes: it provides mechanical connection and fixation between solar panels, fills the separating gap to provide spacing, and through its dark coloration matching the solar panels, ensures uniform heat absorption. This eliminates the need for separate dark insulating layers, achieving thermal stress uniformity without increasing structural complexity.
4Temperature
If solar panels are arranged with separating gap between them, then thermal expansion space is provided, but the transparent encapsulation material absorbs heat differently causing non-uniform thermal stress
Solution Approach 1:
The patent changes the optical parameter (color/absorption rate) of the encapsulation material filling the separating gap from transparent to dark, matching the solar panels. This ensures that the encapsulation material in the separating gap absorbs heat at the same rate as the solar panels, maintaining uniform thermal stress even while providing the necessary thermal expansion space between adjacent panels.
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
This design mitigates non-uniform thermal stress, enhances structural reliability, and extends the service life of solar panels by maintaining consistent heat absorption and attachment quality.
Implementation Method 1
the heat absorption degree of the dark insulating layer is substantially the same as the heat absorption degree of the solar panel
Data Source
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AI summary
A solar panel module (100, 200, 300, 400, 500) including a cover (110), a back plate (120), at least two solar panels (130, 130A, 130B), and at least a dark insulating layer (140, 140A, 140B) is provided. The solar panels (130, 130A, 130B) are configured between the cover (110) and the back plate (120) and arranged along a direction. There is a separating gap (G) of a width (D) arranged between the two adjacent solar panels (130, 130A, 130B). In addition, the dark insulating layer (140, 140A, 140B) is disposed in the separating gap.