Solar Cell Sealing with Nested Substrate and Buffer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Solar cell panels installed in outdoor environments face degradation due to moisture and oxygen exposure, leading to reduced photoelectric conversion efficiency and reliability.
Innovation Solution
A solar cell apparatus with a protective substrate and sealing member configuration, where a buffer sheet is interposed between the substrate and the solar cell panel, and the sealing member is placed at the lateral side and bottom surface of the substrate, increasing contact areas to effectively seal the space and prevent moisture penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the solar cell panel is exposed to outdoor environment, then it can convert solar energy to electric energy, but moisture and oxygen penetrate into the solar cell panel causing degradation
Solution Approach 1:
The patent employs a multi-layer nested sealing structure where the sealing member is positioned between the protective substrate and the solar cell panel, creating nested protective layers. The sealing member extends along the lateral side and bottom surface of the solar cell panel, forming a nested barrier that prevents moisture and oxygen from reaching the solar cells while maintaining the functional exposure to sunlight.
Solution Approach 2:
The sealing member acts as an intermediary element between the protective substrate and the solar cell panel. It mediates the interface by providing a sealing barrier that blocks harmful moisture and oxygen penetration while allowing the solar cell panel to maintain its photoelectric conversion function. The buffer sheet also serves as an intermediary layer that enhances the sealing effect.
2Reliability
If a sealing member is added to prevent moisture penetration, then reliability is improved, but device complexity increases
Solution Approach 1:
The sealing system is segmented into distinct functional components: the sealing member and the buffer sheet. The sealing member is positioned at the interface between the protective substrate and solar cell panel, while the buffer sheet is interposed between these components. This segmentation allows each component to perform its specific sealing function independently, improving reliability without requiring a monolithic complex structure.
Solution Approach 2:
The sealing member extends into a third dimension by running along both the lateral side and the bottom surface of the solar cell panel. This multi-dimensional sealing approach creates a comprehensive barrier against moisture and oxygen penetration from multiple directions, enhancing durability while maintaining a relatively simple overall structure that integrates well with the existing solar cell assembly.
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 configuration enhances the sealing performance, improving the reliability and durability of solar cell panels by preventing moisture and oxygen ingress, thus maintaining efficiency and extending the lifespan of the panels.
Implementation Method 1
a sealing member at a lateral side of the solar cell panel and on a bottom surface of the protective substrate... the sealing member can be disposed in the space between the protective substrate and the solar cell panel... a contact area between the sealing member and the solar cell panel may be increased, and a contact area between the protective substrate and the sealing member is increased. Thus, the sealing member can effectively seal the space between the solar cell panel and the protective substrate.
Data Source
Figure 1
Figure 2~4
Figure 5
AI summary
Disclosed is a solar cell apparatus. The solar cell apparatus includes a solar cell panel; a protective substrate formed on the solar cell panel such that a step difference is formed between the protective substrate and the solar cell panel; and a sealing member at a lateral side of the solar cell panel and on a bottom surface of the protective substrate.