Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Enhanced high-weather-resistance solar cell backboard and preparation method thereof

A solar cell, high weather resistance technology, applied in the field of solar cells, can solve the problems of insufficient module strength, failure of hail test, increased weight of photovoltaic modules, etc., and achieves the effects of low cost and simple preparation process

Pending Publication Date: 2020-11-03
JOLYWOOD SUZHOU SUNWATT
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in order to ensure its own strength and outdoor safety, conventional solar photovoltaic modules usually use a relatively thick (about 3.2mm) toughened glass as the front plate and encapsulate it with an aluminum alloy frame, which makes the weight of the photovoltaic module Dramatic increase, limiting its use in rooftop distribution and other civil scenarios
[0005] In order to reduce the weight of photovoltaic modules and increase their application scenarios, a technical route is to thin the front plate glass and use a relatively light small metal frame, but this brings new problems, that is, the snow load of photovoltaic modules and wind load tests cannot meet the design specifications, and the hail test also has the risk of failure
[0006] The reason for this is that the main reason why photovoltaic modules cannot pass through snow loads and wind loads is that the strength of the modules is not enough due to the thinning of the front glass and the use of small metal frames.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0071] The invention also discloses a method for preparing an enhanced high-weather-resistance solar cell backboard. The method includes the following steps:

[0072] S1. Enhancement layer prefabrication; it includes:

[0073] Heat the thermosetting powder at a temperature of 50-150°C for 1-10 minutes to melt, and after cooling, form a continuous integrated material; or,

[0074] Lay the thermosetting powder on one or both sides of the composition formed by one or any of fiber woven fabrics, meltblown fabrics, non-woven fabrics, chopped fibers or fiber grinds; at a temperature of 50-150 Under the working condition of ℃ and pressure of 10-1000kPa, heat for 1-10min to melt, and form a continuous integrated material after cooling;

[0075] S2. The reinforcement layer and the weather-resistant layer are fixed; it includes:

[0076] Spread the preform prepared in step S1 on the weather-resistant layer, and heat it for 5-30 minutes at a temperature of 80-180°C and a pressure of 10...

Embodiment 1

[0090] On one side of the support layer with polyethylene terephthalate as the main material and a thickness of 250-300 μm, a layer of gold, silver, copper, The weather-resistant metal film with iron and aluminum as the main material is then cured in a microwave curing box with a temperature of 50-150°C and a microwave frequency of 400-2500MHz for 30s-5min to obtain a semi-finished product a1;

[0091] Place the semi-finished product a1 in a constant temperature environment with a temperature of 40-80°C and let it stand for 24-72 hours to obtain the semi-finished product a2;

[0092]On one side of the metal film of the semi-finished product a2, coat a layer with a thickness of 15-20 μm by roller coating, and use modified polytetrafluoroethylene resin, modified polytetrafluoroethylene alkoxy resin, modified ethylene-tetrafluoroethylene copolymer The metal-specific weather-resistant coating prepared by adding a specific metal adhesion promoter based on a mixture of polymer resin...

Embodiment 2

[0098] On one side of the support layer with polyethylene terephthalate as the main material and a thickness of 250-300 μm, a layer of gold, silver, copper, The weather-resistant metal film with iron and aluminum as the main material is then cured in a microwave curing box with a temperature of 50-150°C and a microwave frequency of 400-2500MHz for 30s-5min to obtain a semi-finished product a1;

[0099] Place the semi-finished product a1 in a constant temperature environment with a temperature of 40-80°C and let it stand for 24-72 hours to obtain the semi-finished product a2;

[0100] On one side of the metal film of the semi-finished product a2, coat a layer with a thickness of 15-20 μm by roller coating, and use modified polytetrafluoroethylene resin, modified polytetrafluoroethylene alkoxy resin, modified ethylene-tetrafluoroethylene copolymer The metal-specific weather-resistant coating prepared by adding a specific metal adhesion promoter based on a mixture of polymer resi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to an enhanced high-weather-resistance solar cell backboard and a preparation method thereof. The solar cell backboard comprises a supporting layer, a weather-proof layer arranged on one side of the supporting layer, and an enhancement layer arranged on the other side of the supporting layer. The weather-proof layer is made of one or more of a weather-proof polymer film, a weather-proof polymer coating, a weather-proof metal film, a weather-proof metal plating film or a weather-proof coating special for metal or a composite material composed of at least two of the materials hereinbefore, which have weather-proof function; wherein the supporting layer is made of a polymer film or a metal film which has the tensile strength of 10-10000 MPa and the water vapor transmission rate of less than 5.0 g / (m2*D) and has a supporting function and a water vapor blocking function, and the reinforcing layer is made of a fiber material or a polymer resin material, or is made of acomposite material of the fiber material and the polymer resin material.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to an enhanced high-weather-resistant solar cell backboard and a preparation method thereof. Background technique [0002] With the increasing awareness of environmental protection and the implementation of many countries' policies on the emission of fossil energy combustion gases, renewable energy represented by solar power has developed rapidly. Especially in recent years, the rapid development of the photovoltaic industry in my country has made solar energy Electricity generation is becoming more and more familiar to the general public. [0003] The core of solar power generation is the solar photovoltaic module, which is a kind of class that is laminated at high temperature from top to bottom by five parts: glass front plate, encapsulation film, solar crystalline silicon cell, encapsulation film, and solar battery back plate. Sandwich structure. This structure has been prov...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B33/00B32B15/20B32B15/18B32B15/09B32B27/06B32B17/04B32B17/06B32B5/02B32B27/12B32B27/30B32B27/08B32B27/32H01L31/049
CPCB32B27/36B32B33/00B32B15/20B32B15/18B32B15/09B32B27/06B32B5/02B32B27/12B32B27/304B32B27/32B32B27/08H01L31/049B32B2255/06B32B2255/10B32B2255/26B32B2262/101B32B2457/12B32B2307/712Y02E10/50
Inventor 林建伟张付特赵磊邓如华余艺华
Owner JOLYWOOD SUZHOU SUNWATT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com