Production process for photovoltaic cell assembly

A photovoltaic cell and production process technology, applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve the problems of shortened service life, many bubbles in photovoltaic cells, and low assembly efficiency

Inactive Publication Date: 2012-07-04
上海山晟太阳能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the unreasonable configuration of the entire process, as long as one piece of the photovoltaic cell assembly is damaged, the photovoltaic cell assembly cannot be used normally; Unreliable, which reduces the conversion efficiency of photovoltaic cells, and is prone to aging, corrosion, shortened service life and other defects, wasting a lot of energy a...

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  • Production process for photovoltaic cell assembly
  • Production process for photovoltaic cell assembly

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Embodiment Construction

[0005] The following is a further description of the present invention by taking a photovoltaic cell module with a power of 90W and a module area of ​​1191mmx538mm as an example in conjunction with the accompanying drawings:

[0006] First of all, the photovoltaic cells with a size of 125mmx125mm are graded and tested, and 36 single photovoltaic cells of 2.5W with similar performance are selected, and the positive and negative electrodes are welded with 9 pieces in the length direction and 4 pieces in the width direction; the welding is completed Finally, the structure of TPT-EVA-photovoltaic cell group-EVA-tempered glass is laminated, and sent to the EL solar module tester for photovoltaic cell group inspection. There are no defects, splits, low-efficiency sheets or After the solder joint is empty, send it to the laminator for lamination and curing. Before closing the lid, the upper chamber is vacuumed at -0.02Mpa, and the lower chamber is vacuumed at -0.07Mpa after the lid is...

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Abstract

The invention discloses a production process for a photovoltaic cell assembly. The production process is characterized by comprising the following steps of: testing a single bracket; welding the anode and cathode of a photovoltaic cell chip; overlapping; detecting a photovoltaic cell assembly; and laminating, curing and framing. In the production process, framing is performed along the top angle lines of the four corners of a frame, so that the framing time of a single piece is shortened, the connection is firm, the verticality of the periphery of the frame is high, great convenience is brought to the splicing of a photovoltaic cell matrix, and the working efficiency is increased by 70 percent. In a laminating process, bubbles are not generated in the melting process of EVA (Ethylene Vinyl Acetate), so that the quality of the photovoltaic cell assembly is improved, the efficiency of conversion of solar energy to electric energy is effectively ensured, and the service life of the photovoltaic cell assembly is prolonged.

Description

technical field [0001] The invention relates to a production process of photovoltaic battery components, which relates to the technical field of photovoltaic battery power generation and is applied to photovoltaic power generation. Background technique [0002] At present, the production process of domestic photovoltaic cell components includes single-chip classification testing, welding of positive and negative electrodes of photovoltaic cells, stacking, lamination curing, and framing processes. During the whole process, the photovoltaic cells are graded according to the electrical performance, and the photovoltaic cells with similar performance are combined by welding to form the photovoltaic cell group with the highest efficiency. In order to ensure the service life of the photovoltaic cell group, TPT is generally used. -EVA-photovoltaic battery pack-EVA-tempered glass laminated structure is sent to the laminator for lamination, and the EVA is melted, so that the photovol...

Claims

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Application Information

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IPC IPC(8): H01L31/18
Inventor 倪夜光
Owner 上海山晟太阳能科技有限公司
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