Solar Panel Manufacturing Explained: Green Technology for the Future
I. Overview of solar panels
Solar panel is mainly composed of three parts: solar panel, controller and inverter. Solar cell sheet is the core part of solar panel. Solar panel is mainly composed of solar cell sheet, EVA, glass, backsheet and other parts.
Second, the solar panel manufacturing process
The first step in the manufacturing of solar panels is to prepare raw materials, including solar cells, EVA, glass, backsheets, etc. The quality and performance of these raw materials have a direct impact on the quality and performance of solar panels. The quality and performance of these raw materials directly affect the performance and quality of solar panels.
II. Module Fabrication
The fabrication of solar panel module is mainly including the following steps:
(1) Sort the solar cell wafers and put the ones with different color difference into categories.
(2) Cut the solar cells into pieces.
(3) Series-parallel connection of solar cells: put the solar cells into the series welding machine in accordance with a certain series-parallel connection to be connected in order to obtain the required voltage and current.
(4) Laying EVA: laying EVA on and under the solar cell sheet to play the role of bonding, sealing and insulation.
(5) Glass encapsulation: The solar cell sheet with EVA is placed on top of the glass and then encapsulated to protect the solar cell sheet and improve its reliability.
(6) Backsheet encapsulation: The encapsulated solar cell sheet is placed on the inside of the backsheet and then encapsulated again to prevent moisture and gas from entering the solar cell module.
Quality control is carried out throughout the solar panel manufacturing process. From the quality control of raw materials, to the strict control of each production link, all are to ensure that the quality and performance of solar panels meet the standards. The quality control personnel will conduct strict tests at every step of the process, including the appearance and performance tests of solar cells, the integrity of EVA and backsheets, and so on. Only through strict quality control can we ensure the quality and reliability of the final product.
2.Finished product testing and packaging
Finally, the solar panels that have passed the quality inspection will undergo the packaging process. During this process, the solar panels will be put into the outer package with good performance of shock-proof, moisture-proof, dust-proof, etc. to protect the solar panels during transportation and storage. At the same time, each solar panel will be accompanied by a corresponding quality inspection report, so that customers can understand its performance and quality.
Third, solar panel manufacturing key and difficult
The manufacturing process of solar panels is a highly technical and delicate work, from raw material preparation to finished product packaging, each link is related to the quality and reliability of the product. Understanding the manufacturing process of solar panels helps to better understand the inner mechanisms and characteristics of this clean energy technology. As solar technology continues to develop and costs continue to decrease, the application of solar panels will have a broader future, and its manufacturing process will continue to be optimized and innovated.