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A flexible photovoltaic module package front plate with the function of blocking water and blocking mid-to-far infrared light

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

Active Publication Date: 2022-03-15
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 film thickness material Location 1 450nm SiC x

[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 film thickness material Location 1 450nm SiC x

[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 film thickness material Location 1 450nm SiC x

[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 encapsulation front plate with the function of water blocking and middle and far infrared light, which is characterized in that n layers of nano water blocking layers are compounded on the PET film layer, and the material of each nano water blocking layer is SiC x , DLC, AlO x , SiO x 、SiN x , ZnO, ZrO, TiO 2 For any one of them, the materials of adjacent nanometer water-blocking layers are different. The patent of the invention adopts multiple layers of alternating nanometer water-blocking layers with different thicknesses, which can effectively reduce or even block infrared light with a wavelength in the range of 900-2400nm and higher wavelengths from entering the interior of the module while achieving the water-blocking effect, thereby effectively protecting the flexible module. Reduced efficiency or even failure due to overheating.

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