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Solar Modules Containing Thermally Sealed Composite Layers

A solar module and composite layer technology, which is applied in semiconductor devices, photovoltaic power generation, electrical components, etc., can solve the problem of limiting the applicability of solar modules and other electronic components, and can not specifically reduce the working temperature of solar modules and increase the volume and thickness of solar modules Size and other issues, to achieve the effect of improving photoelectric conversion efficiency and power generation output, improving photoelectric conversion efficiency and power generation output, and slowing down high-temperature aging

Inactive Publication Date: 2017-09-29
TAIFLEX SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1 It is necessary to change the packaging and manufacturing method of the existing mass-produced solar modules, which will increase the inconvenience of the manufacturing method;
[0005] 2 Installing cooling fins will increase the volume and thickness of the overall solar module, and limit the applicability of the solar module and other electronic components;
[0006] 3 The periphery of the photoelectric conversion element is covered by the first and second sealing resin layers of the same material and low thermal conductivity, so that the heat energy generated by the photoelectric conversion element cannot be conducted to the outside through the second sealing resin layer and the back plate Therefore, even if the heat dissipation fins are set on the periphery of the solar module, the purpose of reducing the working temperature of the solar module cannot be achieved

Method used

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  • Solar Modules Containing Thermally Sealed Composite Layers
  • Solar Modules Containing Thermally Sealed Composite Layers
  • Solar Modules Containing Thermally Sealed Composite Layers

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0052] "Preparation Example 1: Thermal Conductive Resin Paste"

[0053] First, prepare ethylene methacrylate resin (ethylene methacrylic acid resin, EMA) and aluminum oxide, the melting index (melting index, MI) of the ethylene methacrylate resin at 190 ° C is 8, and the thermal conductivity is 0.29W / mK; and the average particle size of aluminum oxide is 5 microns.

[0054] Next, with the mixing ratio shown in Table 1, the ethylene methacrylate resin and aluminum oxide were mixed with each other by twin-screw kneading and extruding equipment, so as to obtain thermal conductive resin slurries of experimental groups 1 to 4. The thermal conductivity of the thermally conductive resin paste of each experimental group is tested by a thermal conductivity meter (test specification: ASTM E1461), and the results are shown in Table 1 below.

[0055] Table 1: Mixing ratios of aluminum oxide and ethylene methacrylate resins (unit: volume percent (vol%)) in experimental groups 1 to 4 and t...

Embodiment 1 to 3

[0060] "Examples 1 to 3: Thermally Conductive Sealing Composite Layer"

[0061] In Examples 1 to 3, the thermally conductive resin slurries prepared in the experimental groups 2 to 4 of the aforementioned Preparation Example 1 were respectively selected to make the thermally conductive resin layer of the thermally conductive sealing composite layer. The detailed manufacturing method of the thermally conductive sealing composite layer is as follows:

[0062] The above-mentioned thermally conductive resin slurry is made into a thermally conductive resin layer with an area of ​​15 cm*15 cm and a thickness of 200 microns by blown film method; then polyethylene-methacrylic acid glycidol is coated on the thermally conductive resin layer by hot-melt processing ester, and made into an adhesive resin layer with a thickness of 20 microns, that is, the preparation of the thermally conductive sealing composite layer is completed.

[0063] see figure 1 As shown, the thermally conductive ...

Embodiment 4 to 6

[0074] "Examples 4 to 6: Solar Modules Containing Thermally Conductive Sealing Composite Layers"

[0075] The solar modules of Examples 4 to 6 respectively include the heat-conducting sealing composite layers of Examples 1 to 3, and the solar modules are generally produced by the following manufacturing methods:

[0076] First, stack the transparent glass substrate, ethylene vinyl acetate copolymer resin layer, 72 single crystal solar cell wafers (sold by Motech), a thermally conductive sealing composite layer with a total thickness of 220 microns, and a polyester plastic backsheet; The ethylene-vinyl acetate copolymer resin layer is laminated at 140° C., so that the ethylene-vinyl acetate copolymer resin undergoes a cross-linking curing reaction (thermal setting) until its cross-linking density reaches more than 85%, so as to obtain a laminated structure.

[0077] Next, pour the silica gel slurry containing aluminum oxide into the aluminum frame to obtain an aluminum frame co...

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Abstract

The present invention provides a solar module comprising a thermally conductive sealing composite layer, the thermally conductive sealing composite layer comprising a thermally conductive resin layer with a thermal conductivity between 0.5W / mK and 8W / mK and a thermal conductivity between 0.05W / mK Adhesive resin layer between 0.4W / mK. Wherein, the thickness of the adhesive resin layer is between 0.1% and 10% relative to the sum of the thicknesses of the adhesive resin layer and the thermally conductive resin layer, and the total thermal impedance value of the adhesive resin layer and the thermally conductive resin layer is less than 0.72° C. ‑in2 / W. Accordingly, using the thermally conductive sealing compound layer to replace the sealing resin layer of the solar module in the prior art can not only maintain the functions of sealing, moisture isolation and adhesion, but also can not only increase the thickness and volume of the solar module, but also Reduce the operating temperature of the solar module, improve the photoelectric conversion efficiency and power output of the solar module.

Description

technical field [0001] The invention relates to the related field of semiconductor devices, in particular to a heat-conducting sealing composite layer and a solar module comprising the same. Background technique [0002] The solar module of the prior art is a transparent substrate, a first sealing resin layer, a photoelectric conversion element, a second sealing resin layer, and a back sheet from top to bottom, wherein the photoelectric conversion element is composed of the first and second sealing resin layers coated to prevent the photoelectric conversion element from being affected by moisture in the external environment. However, since the photoelectric conversion elements of the prior art convert sunlight into electrical energy with a conversion efficiency of only about 14 to 22%, the remaining energy is converted into thermal energy or reflected to the external environment, resulting in an improper increase in the operating temperature of the solar module. And reduce ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/048H01L31/052
CPCY02E10/50
Inventor 王富民邓伊玲洪宗泰李育宪洪子景黄正欣
Owner TAIFLEX SCI
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