Heat dissipation type solar cell back film

A solar cell and heat dissipation technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of reducing the insulation of the backplane, affecting the safety and service life of solar cells, and achieving film-forming performance and good thermal conductivity. , Solve the effect of poor processing performance

Active Publication Date: 2014-12-10
乐凯胶片股份有限公司
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The patent with the publication number CN 102306671 A discloses a modified solar cell back sheet, which increases heat dissipation by replacing the ordinary polyester substrate

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heat dissipation type solar cell back film

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1

[0036] Take 100kg of PET resin, 10kg of titanium dioxide (Ti-pure R902), 1kg of ultraviolet absorber UV-P, 0.5kg of antioxidant 1010, 0.5kg of anti-hydrolysis agent carbodiimide, mix them evenly and add them to the twin-screw extruder to melt Extrusion to obtain polyester layer chips.

[0037] Take 100kg of PET resin, 10kg of aluminum nitride particles treated by hyperbranched polyester grafting, and 5kg of graphite treated by hyperbranched polyester grafting, mix them evenly and add them to the twin-screw extruder to melt and extrude to obtain the first A thermally conductive polyester layer slice.

[0038] Take 100 kg of PET resin and 20 kg of aluminum nitride particles that have been treated with hyperbranched polyester grafting, mix them evenly and add them to a twin-screw extruder to melt and extrude to obtain a second thermally conductive polyester layer slice.

[0039] The polyester layer slices, the first thermally conductive polyester layer slices and the ...

Example Embodiment

[0041] Example 2

[0042] Take 100kg of PET resin, 10kg of titanium dioxide (Ti-pure R902), 1kg of ultraviolet absorber UV-P, 0.5kg of antioxidant 1010, 0.5kg of anti-hydrolysis agent carbodiimide, mix them evenly and add them to the twin-screw extruder to melt Extrusion to obtain polyester layer chips.

[0043] Take 100kg of PET resin, 16kg of alumina particles treated by hyperbranched polyether grafting, and 4kg of aluminum powder treated by hyperbranched polyether grafting, mix them evenly and add them to the twin-screw extruder to melt and extrude to obtain the first A thermally conductive polyester layer slice.

[0044] Take 100 kg of PET resin and 5 kg of silicon carbide particles that have been treated by hyperbranched polyether grafting, mix them evenly, and add them to a twin-screw extruder to melt and extrude to obtain slices of the second thermally conductive polyester layer.

[0045] The polyester layer slices, the first thermally conductive polyester layer slices and the...

Example Embodiment

[0047] Example 3

[0048] Take 100kg of PET resin, 10kg of titanium dioxide (Ti-pure R902), 1kg of ultraviolet absorber UV-P, 0.5kg of antioxidant 1010, 0.5kg of anti-hydrolysis agent carbodiimide, mix them evenly and add them to the twin-screw extruder to melt Extrusion to obtain polyester layer chips.

[0049] Take 100kg of PET resin, 2.5kg of aluminum nitride particles that have been grafted with hyperbranched polysiloxane, and 2.5kg of graphite that have been grafted by hyperbranched polysiloxane, mix well and add them to the twin-screw extruder. Melt extrusion to obtain slices of the first thermally conductive polyester layer.

[0050] Take 100 kg of PET resin and 30 kg of aluminum nitride particles grafted with hyperbranched polysiloxane, mix them uniformly, and add them to a twin-screw extruder to melt and extrude to obtain slices of the second thermally conductive polyester layer.

[0051] The polyester layer slices, the first thermally conductive polyester layer slices and t...

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
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a heat dissipation type solar cell back film. The film comprises a weather-proof layer, a base material and an adhesive layer, wherein the base material is made from a heat dissipation type polyester film, and the heat dissipation type polyester film is formed by successively placing a polyester layer, a first heat conducting polyester layer and a second heat conducting polyester layer from top to bottom. The first heat conducting polyester layer contains first heat conducting particles occupying 5%-20% polyester weights of the first heat conducting polyester layer, the second heat conducting polyester layer contains second heat conducting particles occupying 5%-30% polyester weights of the second heat conducting polyester layer, and surface grafting treatment is performed on the first heat conducting particles and the second heat conducting particles by a hyperbranched polymer. The heat dissipation type solar cell back film has the advantages that the heat dissipation property, the heat conducting property and the film forming property are good; the heat quantity generated by a solar cell module is discharged in time; the operating temperature of a solar cell is reduced; the transfer efficiency of the solar cell is improved; and the service life of the solar cell is prolonged.

Description

technical field [0001] The invention relates to the field of new energy, in particular to a heat dissipation solar cell back film. Background technique [0002] A solar cell is a device that directly uses solar energy and converts it into electrical energy through the photovoltaic effect. It mainly uses sunlight in the wavelength range of 400-1100nm for photoelectric conversion, and part of it is converted into electrical energy, and the other part is converted into thermal energy. Infrared rays with a wavelength greater than 1100nm in sunlight do not undergo photoelectric conversion, but are directly converted into heat energy, and these two parts of heat energy heat up the interior of the solar module. The temperature coefficient of a general crystalline silicon solar cell is between -0.4 to -0.5% / °C, that is, the working efficiency of the solar cell decreases as the temperature of the component increases. Therefore, improving the heat dissipation of the solar cell module...

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
IPC IPC(8): H01L31/049H01L31/052B32B27/36B32B27/20
CPCY02E10/50H01L31/052B32B27/20B32B27/36
Inventor 杨辉王莉梁宏陆林浩杰李亚钊李华锋
Owner 乐凯胶片股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap