Foldable Solar Panel Connection Structure for Smooth Storage
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Solution Overview
Problem
Existing foldable photoelectric conversion and power generation modules have limitations in storability, particularly when folded, due to obstructive connection portions and lack of flexibility in folding directions.
Innovation Solution
A matrix arrangement of thin panels with connection portions that allow for smooth folding by satisfying specific relationships in row and column directions, including through regions at intersection points, to prevent obstruction and enhance flexibility during storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If connection portions are made rigid to maintain structural strength, then the module cannot be folded smoothly, but if made flexible to enable folding, then structural strength deteriorates
Solution Approach 1:
The connection portion is constructed as a thin-film structure that provides both flexibility for folding and sufficient strength for structural support. This resolves the contradiction by using material and structural characteristics that inherently combine both properties, allowing the module to be folded smoothly while maintaining connection strength.
2Adaptability or versatility
If the module is designed for single-direction folding, then the structure is simpler, but storability is insufficient
Solution Approach 1:
The connection portion is segmented into multiple regions with different structural characteristics. Specifically, it includes a first region with a first thickness and a second region with a second thickness greater than the first thickness. This segmentation allows different parts to serve different functions: the thinner region enables smooth folding while the thicker region provides structural support and electrical connection, thereby enabling multi-directional folding without excessive overall complexity.
3Volume of moving object
If connection portions are positioned to overlap during folding, then the structure is more compact, but obstruction occurs preventing smooth folding
Solution Approach 1:
The connection portion utilizes the vertical dimension (thickness direction) to resolve the obstruction problem. By creating a stepped thickness structure where the connection portion has a greater thickness in a direction extending from the front surface, it occupies the vertical space rather than overlapping horizontally with adjacent panels during folding. This dimensional transition allows compact folded state while preventing obstruction to folding motion.
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 solution enables improved storability and stability of the modules by allowing seamless folding and storage without obstructive connection portions, maintaining module integrity and functionality.
Implementation Method 1
a plurality of solar cells (photoelectric conversion modules) arranged with a predetermined spacing
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A panel connected body comprises: a plurality of thin panels arranged in a matrix of m rows and n columns; and a connection portion connecting the plurality of thin panels in a row direction and a column direction, wherein the panel connected body is foldable between adjacent thin panels of the plurality of thin panels. The connection portion has, alternately in the column direction, a first type row satisfying relationships D1 ≥ 2L and Dy ≥ Dy-1 + 2L and a second type row satisfying relationships Dn ≥ 2L and Dy ≥ Dy+1 + 2L, where Dy is a length of the connection portion between thin panels P adjacent in the column direction at a yth column, and L is a thickness of each of the plurality of thin panels in a vertical direction.