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Flexible photovoltaic module package front plate having functions of preventing water and medium- and far-infrared light

A photovoltaic module packaging and far-infrared light technology, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of module heating, water blocking of packaging materials, etc., and achieve the effect of reducing protection efficiency or even failure

Active Publication Date: 2019-05-21
JIANGSU LINYANG PHOTOVOLTAIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention proposes a flexible photovoltaic module encapsulation front plate with the function of water resistance and middle and far infrared light, which solves the problems of water resistance of the packaging material and heat generation of the components

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] layers

[0017] Embodiment 1 can block 95% of infrared light with a wavelength of 900-2700nm, and the water blocking rate can reach 1.5×10 - 3 g / 24h.

Embodiment 2

[0019] layers

[0020] Example 2 can block 90% of infrared light with a wavelength of 900-3000nm, and the water blocking rate can reach 2.0×10 - 3 g / 24h.

Embodiment 3

[0022] layers

[0023] Example 3 can block 90% of infrared light with a wavelength of 900-2700nm, and the water blocking rate can reach 2.5×10 - 3 g / 24h.

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PUM

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Abstract

The invention discloses a flexible photovoltaic module package front plate having functions of preventing water and medium- and far-infrared light. The flexible photovoltaic module package front plateis characterized in that n nanometer water blocking layers are combined onto a PET thin film layer, the material of each nanometer water blocking layer is arbitrary one of SiCx, DLC, AlOx, SiOx, SiNx, ZnO, ZrO and TiO2, and the materials of adjacent nanometer water blocking layers are different. In the flexible photovoltaic module package front plate, multiple alternative nanometer water blockinglayers with different thicknesses are used, a water blocking effect is achieved, meanwhile, infrared light, with wavelength being a range of 900-2,400 nanometers and higher wavelength, entering the module can be effectively reduced even prevented, so that the situation that the efficiency is reduced even the flexible module is in failure due to overheat is effectively prevented.

Description

technical field [0001] The invention belongs to the field of photovoltaic cell production, in particular to a flexible photovoltaic module encapsulation front plate with the function of water resistance and mid-far infrared light resistance. Background technique [0002] Solar cells are devices that convert solar energy into electrical energy. Flexible solar cells are mainly composed of PET front sheets, water-blocking films, packaging film EVA, battery sheets, packaging film EVA, water-blocking films, and PET back sheets. Pressed, the front plate PET is located on the outermost layer of the module, which plays the role of light transmission, protection, insulation, and water vapor barrier. It needs to have aging resistance, hydrolysis resistance, corrosion resistance and excellent water vapor barrier performance, but single-layer PET The weather resistance and water vapor resistance of the film are poor. In order to improve the performance of the PET film on the front panel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048B32B9/00B32B9/04B32B27/06B32B27/36B32B33/00B82Y40/00
CPCY02E10/50
Inventor 刘操
Owner JIANGSU LINYANG PHOTOVOLTAIC TECH