Solar Module Frame Drainage Structure for Edge Protection
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Solution Overview
Problem
Solar cell modules face challenges in efficiently draining water, such as rainwater, without compromising the protection of the solar cell panel edges.
Innovation Solution
A solar cell module design featuring a frame with a groove and nail portion that includes drainage holes and a water guide portion to direct water away from the panel while maintaining edge protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a frame structure is designed to protect the edges of the solar cell panel, then the protection function is improved, but water drainage efficiency deteriorates
Solution Approach 1:
The frame structure is segmented into multiple functional zones: a holding portion with groove for edge protection, a base extending upward from the groove, and a nail portion extending from the base. This segmentation allows each zone to perform its specific function - the groove protects edges while the base and nail portions create drainage pathways, resolving the contradiction between protection and drainage
Solution Approach 2:
Different parts of the frame are given different local qualities and functions. The holding portion has a groove structure optimized for edge protection, while the base and nail portions are configured with drainage holes and water guide portions optimized for water drainage. This local differentiation allows simultaneous achievement of both protection and drainage functions without compromise
2Productivity
If drainage holes are added to the frame, then water drainage efficiency is improved, but the structural integrity and protection function deteriorate
Solution Approach 1:
The drainage holes are positioned in the base portion which extends upward from the groove, creating a vertical drainage pathway. The water guide portion extends horizontally from the nail portion to direct water toward the drainage holes. This multi-dimensional drainage architecture enables efficient water removal while maintaining the horizontal protective groove structure intact
Data Source
AI summary
A solar cell module comprises a solar cell panel and a frame. A holding portion of a frame piece constituting the frame includes: a base extending upper than the panel upper surface of the solar cell panel from a main body portion 30B and covering a panel side surface; a nail portion extending from the base to the side of the solar cell panel and covering the panel upper surface; a drainage hole formed by notching a part of the base, said part being positioned lower than the panel upper surface; and a water guide portion formed by notching the nail portion from a connection portion.