Process for producing self-cooling solar back plate

A technology of solar backsheet and production process, applied in the field of solar modules, can solve the problems of lowering conversion rate and shortening the service life of the backsheet, and achieve the effects of increasing power, slowing down the rate of material aging, and having a simple structure

Inactive Publication Date: 2017-01-11
WUXI SUNOCEAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solar backsheet is one of the accessories of the whole solar cell. It mainly plays the role of mechanical support and protection of the cell from the penetration of environmental factors. At present, the conversion rate of the energy efficiency of the conventional solar cell backsheet is greatly reduced in the high temperature environment, which greatly reduces the Lifespan of the backplane

Method used

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Embodiment Construction

[0018] The following describes specific embodiments of the present invention.

[0019] The production process of a self-cooling solar backplane according to the present invention includes the following steps:

[0020] The first step: feeding the PET substrate by the unwinding machine;

[0021] Step 2: Apply the adhesive with a good proportion to one side surface of the PET substrate uniformly through a double-roller roll coater;

[0022] The third step: transport the PET substrate coated with adhesive in the second step to the drying room for drying and curing, the drying temperature is 70°C, and the drying time is 5 minutes;

[0023] The fourth step: compound a layer of reflective coating on the surface of the PET-based material with adhesive; the reflective coating is made of a mixture of titanium oxide and zinc oxide;

[0024] Step 5: Roll the PET base material with the composite reflective coating in the fourth step on the paper core to form a semi-finished product and place it in th...

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Abstract

The invention relates to a process for producing a self-cooling solar back plate. The solar back plate produced by using the process comprises a PET (Polyethylene Terephthalate) base material, a reflecting layer and a coating. The solar back plate is simple in structure and convenient to use, the overall temperature of the back plate can be effectively reduced, the problem of power decline caused by over high temperature is avoided, the overall power is improved, the rate of material aging caused by high temperature difference is retarded, the service life of the solar back plate is prolonged, and the photoelectric conversion efficiency of the solar back plate is improved. The reflecting layer can reflect light irradiated to the back plate, thereby avoiding self temperature rise of the solar back plate due to light absorption and simultaneously improving the light absorption rate of the solar back plate.

Description

Technical field [0001] The invention relates to the field of solar components, in particular to a production process of a self-cooling solar backplane. Background technique [0002] As a green and inexhaustible energy source, solar energy is undoubtedly the best choice to replace traditional thermal power generation. Since solar cells need to be exposed outdoors for a long time, the cells in photovoltaic modules need to be protected to prevent the atmosphere The influence of environmental factors such as water vapor, oxygen, ultraviolet rays and so on. The solar backplane is one of the accessories of the entire solar cell, which mainly plays the role of mechanical support and protection of the cells from the penetration of environmental factors. At present, the conventional solar cell backplane has a greatly reduced energy efficiency conversion rate in a high temperature environment. The service life of the backplane. Summary of the invention [0003] In view of the above-mentio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/049
CPCY02E10/50H01L31/18H01L31/049
Inventor 黄新东刘天人
Owner WUXI SUNOCEAN
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