Laminating technique for photovoltaic cell assembly

A technology for photovoltaic cells and lamination processes, applied in lamination, lamination devices, electrical components, etc., can solve problems such as shortening the service life of photovoltaic panels, affecting the quality of photovoltaic cell modules, and wasting photovoltaic resources.

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

AI Technical Summary

Problems solved by technology

Since the general laminator does not solve the relationship between heating and cooling during the lamination process, the laminated photovoltaic cell module cannot exhaust the air between the stacks; the air bubbles between the stacks directly affect The quality of photovoltaic cell components will reduce the efficiency of photovoltaic cell components to convert solar energy into electrical energy, and the service life of photovoltaic cell panels will be shortened, resulting in a great waste of photovoltaic resources.

Method used

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Examples

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Embodiment Construction

[0004] Below with power 90W, the lamination of the photovoltaic cell module of length 1193mm, width 538mm is example, the present invention is described further:

[0005] In the last process, the tempered glass-EVA-photovoltaic cell-EVA-TPT lamination with a length of 1193mm and a width of 538mm should be placed on the working table of the laminator, the upper chamber should be vacuumed to -0.02Mpa, the lid should be closed and sealed, and the lower chamber should be sealed. Vacuuming - 0.07Mpa, the temperature of the lower working table rises from 40°C to 125°C, the EVA melts, the upper airbag is inflated and pressed down, and the lamination pressure is 15Mpa, from the center to the surrounding Tempered glass-EVA-photovoltaic cells-EVA-TPT lamination, so that the molten EVA fills the gap between the tempered glass, photovoltaic cells, and TPT. The working surface is between 40°C and 50°C, open the cover, take it out and cure it in an oven at 140°C for 20 minutes;

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Abstract

The invention discloses a laminating technique for a photovoltaic cell assembly. The laminating technique comprises the technical steps of placing an overlapped photovoltaic cell assembly on the working face of a laminating machine, closing the cover and laminating, and is characterized in that: the process of laminating technique comprises vacuumizing an upper chamber before the cover is closed, vacuumizing the lower camber after the cover is closed, raising the temperature in the lower chamber, charging air into the upper chamber for laminating, cooling working tabletop by charging air or water into the lower chamber, exhausting air in the upper chamber and solidifying in a drying oven; as the relationship between heating and cooling is determined in a laminating process, the air between the laminated layers of the photovoltaic cell assembly is exhausted before temperature rise and EVA melting to prevent air bubbles in a melting process; therefore, the quality of the photovoltaic cell assembly is improved, the rate of conversion of solar into electric energy of the photovoltaic cell assembly is guaranteed and the service life of photovoltaic panels is prolonged.

Description

technical field [0001] The lamination process of the photovoltaic cell assembly of the present invention relates to the technical field of photovoltaic cell design and manufacture, and is applied to generate electricity by utilizing sunlight irradiation. Background technique [0002] At present, photovoltaic cell components using solar energy need to go through multiple processes, among which the key process is the lamination process of photovoltaic cell components. The general laminating machine, according to the conventional process method: after laminating the tempered glass-EVA-photovoltaic cell sheet-EVA-TPT, put it into the laminating machine for lamination, extract the vacuum, heat and melt the EVA to make the lamination by EVA Toughened glass, photovoltaic cells, and TPT are bonded together. Since the general laminator does not solve the relationship between heating and cooling during the lamination process, the laminated photovoltaic cell module cannot exhaust the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/06B32B37/10H01L31/18
CPCY02P70/50
Inventor 倪夜光
Owner 上海山晟太阳能科技有限公司
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