Lightweight and high-strength photovoltaic module and preparation method thereof

A photovoltaic module and high-strength technology, which is applied in the field of solar cells, can solve the problems that the snow load and wind load test of photovoltaic modules cannot meet the design specifications, reduce the strength of the modules, and are not enough, and achieve the goal of promoting the process of photovoltaic civilianization, weight reduction, high energy consumption, etc. the effect of strength

Active Publication Date: 2022-07-08
JOLYWOOD SUZHOU SUNWATT
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In order to reduce the weight of photovoltaic modules, a feasible technical route is to thin the front glass and use a small metal frame with relatively light weight, but this technical solution brings new problems, that is, the snow load of photovoltaic modules and wind load tests fail to meet design specifications
The reason is mainly due to the insufficient strength of the components brought about by thinning the front glass and using a small metal frame

Method used

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  • Lightweight and high-strength photovoltaic module and preparation method thereof
  • Lightweight and high-strength photovoltaic module and preparation method thereof

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preparation example Construction

[0086] The present invention also provides a method for preparing a light-weight and high-strength photovoltaic module, which comprises the following steps:

[0087] S1, prepare a polymer reinforcement layer pre-product;

[0088] S2, prepare the encapsulation film;

[0089] S3. Lay the front glass, the first encapsulation film, the battery string, the second encapsulation film, the polymer reinforcement layer prefabricated product and the photovoltaic backplane in sequence from top to bottom;

[0090] S4. Place the laid overall structure in a preheated laminator, and under the working conditions of a temperature of 130-180°C and a pressure of 10-1000kPa, heat for 5-30min to perform lamination;

[0091] S5, post-processing.

[0092] In one embodiment, in step S1, the preparation of the polymer reinforcement layer preform includes:

[0093] The thermosetting powder is placed under a working condition of a temperature of 80-130° C., heated for 1-10 minutes, melted, and cooled ...

Embodiment 1

[0101] The polymer powder material with a diameter of 10-200μm thermosetting polyacrylic acid as the main resin, adding curing agent, auxiliary agent and coupling agent, after post-processing, granulation and grinding, is spread evenly on the unit gram weight of 300g / m2. 2 On the glass fiber woven cloth, heat the powder at 80-130 ℃ for 1-10 minutes to melt the powder, and after cooling, prepare a continuous integrated composite material, and cut the prepared continuous integrated composite material according to the designed size. to obtain a copolymer reinforcement layer preform;

[0102] Prepare 2.0mm thick ultra-white embossed low-iron coated tempered glass, polyolefin encapsulation film, battery string, two layers of ethylene-vinyl acetate copolymer film and transparent CPC photovoltaic backplane according to the set size;

[0103] Lay ultra-white embossed low-iron coated tempered glass, polyolefin film, battery string, ethylene-vinyl acetate copolymer film, polymer reinfor...

Embodiment 2

[0107] The polymer powder material with a diameter of 10-200μm thermosetting polyester as the main resin, adding curing agent, auxiliary agent and coupling agent, after post-processing, granulation and grinding, is spread evenly on the unit gram weight of 300g / m2. 2 On the glass fiber woven cloth, heat the powder at 80-130 ℃ for 1-10 minutes to melt the powder, and after cooling, prepare a continuous integrated composite material, and cut the prepared continuous integrated composite material according to the designed size. to obtain a copolymer reinforcement layer preform;

[0108] Prepare 2.0mm thick ultra-white embossed low-iron coated tempered glass, polyolefin encapsulation film, battery string, two layers of ethylene-vinyl acetate copolymer film and transparent CPC photovoltaic backplane according to the set size;

[0109] Lay ultra-white embossed low-iron coated tempered glass, polyolefin film, battery string, ethylene-vinyl acetate copolymer film, polymer reinforcement ...

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Abstract

The invention relates to a light-weight and high-strength photovoltaic module and a preparation method thereof. The light-weight and high-strength photovoltaic module includes, from top to bottom, a front glass, a first encapsulation film, a battery string, a second encapsulation film, a polymer reinforcement layer and a photovoltaic backplane; The first encapsulation film, the battery string, the second encapsulation film, the polymer reinforcement layer and the photovoltaic backplane are subjected to high temperature and high pressure vacuum thermoforming to form the photovoltaic module; the polymer reinforcement layer is used to enhance the strength of the photovoltaic module . The invention reduces the thickness of the front glass of the photovoltaic module and adds a light-weight high-strength polymer reinforcement layer in the structure of the photovoltaic module, so as to reduce the weight of the photovoltaic module and at the same time make it have high strength, so that it can be well Meets certification requirements for wind, snow and hail in IEC standards.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a light-weight and high-strength photovoltaic module and a preparation method thereof. Background technique [0002] With the increasing awareness of people's environmental protection, and the implementation of many countries' policies to limit the emission of fossil energy combustion gas, the renewable energy represented by solar power generation has developed rapidly, especially in recent years, the rapid development of the photovoltaic industry in my country has made solar energy Power generation is becoming more and more familiar to the public. At present, solar power generation has entered the era of grid parity. [0003] The common basic unit of photovoltaic modules with crystalline silicon solar cells as the core of power generation includes, from top to bottom, the glass front plate, the encapsulation film, the solar crystalline silicon cell, the encapsulation film, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/048H01L31/049H01L31/18
CPCH01L31/0481H01L31/049H01L31/1876Y02E10/50
Inventor 林建伟张付特赵磊邓如华宋金帅吴韦余艺华
Owner JOLYWOOD SUZHOU SUNWATT
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