Packaging material for photovoltaic module and method for preparing packaging material

A technology for packaging materials and photovoltaic modules, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of heavy packaging materials, heavy weight, and labor-intensive installation, and achieve weight reduction, low manufacturing costs, and reduced installation. cost effect

Active Publication Date: 2017-01-04
TIGER DRYLAC TAICANG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As a packaging material used in the photovoltaic field, it is required to have anti-ultraviolet, anti-aging and other properties, such as Figure 5 As shown, the packaging structure of a typical existing photovoltaic module includes from top to bottom: a tempered glass layer 30c, an upper EVA layer 21c, a photovoltaic cell panel layer 10c, a lower EVA layer 22c, and a back sheet layer 40c, wherein: the tempered glass layer Density up to 2.5g/cm 3 , and the common thickness of tempered glass is 3.2mm, so the weight of tempered glass glass is as high as 8Kg per square meter, and the photovoltaic modules packaged by it are usually of high quality, with a weight of more than 10Kg per square meter. The weight of the module per square meter is at least 12Kg or more. When it is applied on the top of the building or on the wall, it puts forward higher requirements for the supporting structure of the photovoltaic module, which increases the difficulty of engineering construction and the cost of installation. The specific performance For: during the installation process on the top of the building or on the wall, there are heavy weight, high installation labor intensity, and difficult implementation; especially in some occasions, due to the limitation of building load-bearing load, it is impossible to install photovoltaic modules
At the same time, the existing photovoltaic module packaging structure has a single appearance and is not easy to change to meet the requirements of different architectural appearances.
[0005] At present, there are some technical solutions that try to solve the problem of lightweight photovoltaic modules by changing the packaging materials, that is, using high-transmittance films and transparent backplanes

Method used

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  • Packaging material for photovoltaic module and method for preparing packaging material
  • Packaging material for photovoltaic module and method for preparing packaging material
  • Packaging material for photovoltaic module and method for preparing packaging material

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preparation example Construction

[0037] The embodiment of the present invention also discloses a preparation method of the above packaging material for photovoltaic modules, wherein the operation steps include the following:

[0038] a), the super weather-resistant polyester powder coating is evenly coated on the fiber cloth by the coating device;

[0039] b) Thermal bonding of the super weather-resistant polyester powder coating and the fiber cloth by pressurization and heating;

[0040] c), the super-weather-resistant polyester powder coating and the fiber cloth that are thermally bonded in the above step b) are cut in sections;

[0041] d), obtaining the encapsulation material for the photovoltaic module.

[0042] In the embodiment of the present invention, the super-weather-resistant polyester powder coating is evenly coated on the fiber cloth by the coating device, and then the super-weather-resistant polyester powder coating is pre-bonded with the fiber cloth by pressing and heating, and finally cut in...

Embodiment 1

[0045] A packaging material for a photovoltaic module, the packaging material comprising the following raw materials in parts by weight:

[0046] 30-50 parts of fiber cloth, fiber cloth is made of fiber material weaving, preferably, in the embodiment of the present invention, fiber cloth is made of any one of plain weave, twill weave, satin weave, rib or mat weave by fiber material method or a combination of several weaving methods, specifically, in this embodiment, 30 parts of fiber cloth, fiber cloth is made of fiber material using plain weave, of course, those skilled in the art can according to actual needs Select other known weaving methods;

[0047] Preferably, in the embodiment of the present invention, the weight per unit area of ​​the fiber cloth is in the range of 30-400 g / m 2 , while ensuring the strength of the fiber cloth, the lightweight of the fiber cloth is ensured. Specifically, in this embodiment, the weight per unit area of ​​the fiber cloth is 100g / m 2 ; ...

Embodiment 2

[0067] In this embodiment 2, the encapsulation material comprises the following raw materials in parts by weight:

[0068] 35 parts of fiber cloth, which is made of fiber material by twill weaving;

[0069] The unit area weight of the fiber cloth is 30g / m 2 ;

[0070] The fiber material is carbon fiber;

[0071] The monofilament diameter of the fiber material is 5 μm;

[0072] 65 parts of super-weather-resistant polyester powder coatings, super-weather-resistant polyester powder coatings include super-weather-resistant polyester resins, curing agents and auxiliary agents;

[0073] Preferably, in the embodiment of the present invention, the super-weather-resistant polyester resin is a carboxyl super-weather-resistant polyester resin, a mixture of one or two monomers of terephthalic acid and isophthalic acid, and the carboxyl super-weather The acid value range of the weather-resistant polyester resin is 15-85mgKOH / g, the glass transition temperature range is 50-75°C, and the...

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Abstract

The invention discloses a packaging material for a photovoltaic module. The packaging material is prepared from the following raw materials in parts by weight: 30-50 parts of fiber cloth woven by adopting a fiber material, and 50-70 parts of extra-weather-resistance polyester powder coating which is prepared from extra-weather-resistance polyester resin and a curing agent, wherein the fiber cloth is uniformly coated with the extra-weather-resistance polyester powder coating. The packaging material has low manufacture cost, can be used for effectively realizing light weight of the packaging material of a photovoltaic module, improving the assembly convenience and reducing assembly cost, and is suitable for large-scale popularization and application in the photovoltaic field. The invention further discloses a method for preparing the packaging material for the photovoltaic module, which realizes arbitrary size change of the photovoltaic module to adapt to the assembly requirement of different constructions, and the assembly application of the photovoltaic module can be further facilitated.

Description

technical field [0001] The invention belongs to the photovoltaic field, and in particular relates to a packaging material for a photovoltaic module, and also relates to a preparation method of the packaging material. Background technique [0002] In the current society, energy conflicts and environmental problems are becoming more and more prominent, and the development of various types of clean energy is an inevitable trend. In recent years, the photovoltaic industry has developed rapidly, and technological updates have been gradually accelerated. At present, the photovoltaic industry is developing towards product diversification. The research and development of various functional components with high reliability, high power and low installation cost has become a direction for the development of photovoltaic components. [0003] Solar photovoltaic power generation relies on solar cells to convert light energy directly into electricity. In the past ten years, the total glob...

Claims

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Application Information

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IPC IPC(8): D06N3/00D06N3/12H01L31/048H01L31/18
CPCD06N3/0022D06N3/0034D06N3/0061D06N3/123H01L31/0481D06N2209/1692D06N2201/087D06N2201/0272Y02E10/50Y02B10/10D06N3/0093D06N3/0006
Inventor 戴天贺骆飚汪志成龙国柱刘皎彦练成荣王伟力
Owner TIGER DRYLAC TAICANG
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