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Radiation cooling layer structure and photovoltaic assembly

A radiation refrigeration, layer structure technology, applied in refrigerators, refrigeration and liquefaction, coating and other directions, can solve the problem of low light transmittance of radiation refrigeration layer structure, improve photoelectric conversion efficiency and service life, increase light transmittance , the effect of high light transmittance

Pending Publication Date: 2019-09-20
NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a radiation cooling layer structure, which solves the defect of low light transmittance of the radiation cooling layer structure in the prior art

Method used

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  • Radiation cooling layer structure and photovoltaic assembly
  • Radiation cooling layer structure and photovoltaic assembly
  • Radiation cooling layer structure and photovoltaic assembly

Examples

Experimental program
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Embodiment 1

[0038] A radiation cooling layer structure, the preparation method of which is:

[0039] Provide a substrate layer, the thickness of the substrate layer is 2mm, the material of the substrate layer is glass, and the refractive index of the substrate layer is 1.5;

[0040] Mix 6 parts of functional filler with 100 parts of copolymer of tetrafluoroethylene and perfluoro(2,2-dimethyl-1,3-dioxole) to form a resin mixture, and set the resin mixture on the substrate On the layer, a functional layer with a thickness of 50nm was prepared, in which the functional filler was SiO 2 , the particle size of the functional filler is 4nm, and the refractive index of the functional layer is 1.36.

Embodiment 2

[0042] A radiation cooling layer structure, the preparation method of which is:

[0043] Provide a substrate layer, the thickness of the substrate layer is 2mm, the material of the substrate layer is glass, and the refractive index of the substrate layer is 1.5;

[0044] Mix 6 parts of functional filler with 100 parts of a copolymer of tetrafluoroethylene and 5-trifluoromethoxy-2,2,4-trifluoro-1,3-dioxole to form a resin mixture, and the resin The mixture is arranged on the substrate layer to obtain a functional layer with a thickness of 175nm, wherein the functional filler is SiO 2 , the particle size of the functional filler is 8 μm, and the refractive index of the functional layer is 1.3.

Embodiment 3

[0046] A radiation cooling layer structure, the preparation method of which is:

[0047] Provide a substrate layer, the thickness of the substrate layer is 2mm, the material of the substrate layer is glass, and the refractive index of the substrate layer is 1.5;

[0048] Mix 6 parts of functional fillers with 100 parts of perfluoro(buten-3-yl vinyl ether) cyclopolymerized homopolymer to form a resin mixture, and place the resin mixture on the substrate layer to obtain a 30 μm thick Functional layer, wherein the functional filler is SiO 2 , the particle size of the functional filler is 8 μm, and the refractive index of the functional layer is 1.1.

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Abstract

The invention discloses a radiation cooling layer structure and a photovoltaic assembly, wherein the radiation cooling layer structure comprises a substrate layer and a functional layer arranged on the substrate layer, the functional layer comprises a first resin and a functional filler dispersed in the first resin, the average emissivity of the functional layer at waveband of 7-14 [mu]m is 70-100%, the refractive index of the functional layer is lower than the refractive index of the substrate layer, and the average transmittance of the radiation cooling layer structure is at least 1% higher than the average transmittance of the single substrate layer within a wavelength of 300-1100 nm.

Description

technical field [0001] The invention relates to the technical field of radiation refrigeration, in particular to a radiation refrigeration layer structure and a photovoltaic module. Background technique [0002] The radiation cooling film generally includes a base material layer and a radiation cooling layer arranged on the base material layer, and the radiation cooling layer is made of resin and radiation cooling particles dispersed in the resin. Radiation cooling particles can discharge their own heat in the form of electromagnetic waves of 7 μm to 14 μm through the “atmospheric window” to the outer space where the temperature is close to absolute zero, so as to achieve the purpose of self-cooling. Therefore, the radiation cooling film has the function of passive cooling, and it does not need energy consumption when cooling. If the existing radiation cooling film is placed outside buildings such as sunshine rooms and greenhouses, its cooling effect can make the indoor temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/18C09D7/61F25B23/00
CPCC09D127/18C09D7/61F25B23/003C08K3/36
Inventor 徐绍禹其他发明人请求不公开姓名
Owner NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD