Solar Cell Panel Reinforcing Region for Lamination Pressure
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Solution Overview
Problem
Solar cell panels face issues with damage and inadequate sealing due to pressure during the lamination process, leading to broken or damaged components and insufficient sealing at the edge portions, which increases material costs and manufacturing time.
Innovation Solution
A solar cell panel design with a reinforcing region having a greater thickness than the central region, positioned at the edges, to absorb pressure and prevent damage, combined with a method of applying heat and pressure during lamination to enhance productivity and reduce defective rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If temperature and pressure during lamination process are reduced and process time is increased, then damage to solar cells and cover members is reduced, but productivity decreases and manufacturing time increases
Solution Approach 1:
The sealing member is designed with non-uniform thickness, having a first thickness in the central region and a second thickness greater than the first thickness in the outer region. This local variation in thickness allows the outer region to withstand higher pressure during lamination without damaging the solar cell or cover member, while enabling the use of higher overall pressure to maintain productivity
2Reliability
If a thicker back sealing film is used, then sealing property at edge portion is improved, but material cost and process time increase
Solution Approach 1:
The sealing member has different thicknesses in different regions: a first thickness in the central region and a second thickness greater than the first thickness in the outer region. This localized thickness variation ensures sufficient sealing at the edge portion without requiring the entire sealing member to be thick, thereby reducing overall material usage and cost
3Productivity
If pressure during lamination is increased, then productivity is improved, but solar cells and cover members may be broken or damaged
Solution Approach 1:
The sealing member is designed with a first thickness in the central region and a second thickness greater than the first thickness in the outer region. This thickness variation allows the outer region to absorb and distribute the applied pressure, enabling higher overall pressure to be used during lamination to improve productivity while preventing damage to the solar cell and cover member
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 effectively prevents damage to solar cells and cover members, maintains adequate sealing, reduces material costs, and shortens the lamination process time, thereby improving the reliability and productivity of solar cell panel manufacturing.
Implementation Method 1
A solar cell panel design with a reinforcing region having a greater thickness than the central region, positioned at the edges, to absorb pressure and prevent damage
Implementation Method 2
a method of applying heat and pressure during lamination to enhance productivity and reduce defective rates
Implementation Method 3
a lamination process for applying heat and pressure
Data Source
AI summary
A solar cell panel can include a solar cell; a sealing member including a first sealing member disposed on a first surface of the solar cell and a second sealing member disposed on a second surface of the solar cell; a first cover member disposed on the first sealing member and including a glass substrate; and a second cover member disposed on the second sealing member and including a glass substrate, in which the sealing member includes a central region and an outer region positioned outside the central region, and the outer region includes a reinforcing region having a thickness greater than a thickness of the central region.