Multilayer fluorescent packaging adhesive film

A technology of encapsulating adhesive film and fluorescence, which is applied in the direction of adhesives, film/sheet adhesives, and film/sheet without carrier, etc. It can solve the problems of reducing the conversion power of modules and ineffective application of photovoltaic modules, etc., and achieve improvement Effects of converting power, improving performance, and reducing usage

Inactive Publication Date: 2020-01-03
CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the aging resistance of the EVA film, UV absorbers are added, but the principle of UV absorbers is to directly filter out UV light, so that high-energy UV light cannot be effectively applied to photovoltaic modules, reducing the conversion power of modules.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A multi-layer fluorescent packaging adhesive film, comprising an upper release paper layer and a lower release paper layer, an adhesive film layer is arranged between the upper release paper layer and the lower release paper layer, and the adhesive film layer includes an upper EVA film layer, organic silicon transparent silica gel layer, lower EVA film layer, the upper EVA film layer and the lower EVA film layer are filled with some fluorescent powder, and the organic transparent silica gel layer is filled with some light diffusion particles, The cross-section of the upper EVA adhesive film layer is trapezoidal, and after thermal fusion, the cross-section of the encapsulating adhesive film is trapezoidal.

[0029] Wherein, the inner surface of the upper release paper layer and the lower release paper layer has an embossed layer, and the shape of the embossed layer is wavy.

[0030] Wherein, several fluorescent powders are evenly distributed in the upper EVA film layer a...

Embodiment 2

[0038] A multi-layer fluorescent packaging adhesive film, comprising an upper release paper layer and a lower release paper layer, an adhesive film layer is arranged between the upper release paper layer and the lower release paper layer, and the adhesive film layer includes an upper EVA film layer, organic silicon transparent silica gel layer, lower EVA film layer, the upper EVA film layer and the lower EVA film layer are filled with some fluorescent powder, and the organic transparent silica gel layer is filled with some light diffusion particles, The cross-section of the upper EVA adhesive film layer is trapezoidal, and after thermal fusion, the cross-section of the encapsulating adhesive film is trapezoidal.

[0039] Wherein, there are embossed layers on the inner surfaces of the upper release paper layer and the lower release paper layer, and the shapes of the embossed layers are several concentric circles.

[0040] Wherein, several fluorescent powders are evenly distribu...

Embodiment 3

[0048]A multi-layer fluorescent packaging adhesive film, comprising an upper release paper layer and a lower release paper layer, an adhesive film layer is arranged between the upper release paper layer and the lower release paper layer, and the adhesive film layer includes an upper EVA film layer, organic silicon transparent silica gel layer, lower EVA film layer, the upper EVA film layer and the lower EVA film layer are filled with some fluorescent powder, and the organic transparent silica gel layer is filled with some light diffusion particles, The cross-section of the upper EVA adhesive film layer is trapezoidal, and after thermal fusion, the cross-section of the encapsulating adhesive film is trapezoidal.

[0049] Wherein, the inner surface of the upper release paper layer and the lower release paper layer has an embossed layer, and the shape of the embossed layer is wavy.

[0050] Wherein, several fluorescent powders are evenly distributed in the upper EVA film layer an...

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Abstract

The invention relates to the technical field of photovoltaic cells and particularly relates to a multilayer fluorescent packaging adhesive film. The multilayer fluorescent packaging adhesive film comprises an upper release paper layer and a lower release paper layer, wherein an adhesive film layer is arranged between the upper release paper layer and the lower release paper layer and comprises anupper EVA adhesive film layer, an organosilicone transparent silica-gel layer and a lower EVA adhesive film layer, the upper and lower EVA adhesive film layers are filled with a plurality of fluorescent powder, the organic transparent silica-gel layer is filled with a plurality of photodiffusion particles, a cross section of the upper EVA adhesive film layer is trapezoidal, and a cross section ofthe packaging adhesive film is trapezoidal after hot fusion. According to the multilayer fluorescent packaging adhesive film disclosed by the invention, ultraviolet light can be converted into visiblelight of specific wavelength by the adhesive film, the visible light can be converted into electric energy by a photovoltaic module, and thus, the conversion power of the photovoltaic module is increased; and the organosilicone transparent silica-gel layer is arranged between the two EVA adhesive film layers, so that the thermal shrinkage ratio of the packaging adhesive film is lowered, the condition that a local area between two back plates is free of the adhesive film due to thermal shrinkage of the adhesive film is avoided, and the consumption of the adhesive film is lowered.

Description

technical field [0001] The invention relates to the technical field of photovoltaic cells, in particular to a multilayer fluorescent packaging film. Background technique [0002] EVA encapsulation film is a kind of thermosetting adhesive film, which is used to place between laminated glass or backplane. Due to its strong adhesion, durability and optical properties, it is more and more widely used in current components and Various optical products. In order to improve the aging resistance of the EVA film, a UV absorber is added, but the principle of the UV absorber is to directly filter out the UV light, so that the high-energy UV light cannot be effectively applied to the photovoltaic module, and the conversion power of the module is reduced. . Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings in the prior art and provide a multi-layer fluorescent packaging adhesive film, which can convert ultraviolet light into visib...

Claims

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Application Information

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IPC IPC(8): C09J7/30C09J7/10C09J123/08C09J11/08C09J11/06C09J11/04
CPCC09J7/10C09J123/0853C09J11/08C09J11/06C09J11/04C09J2423/04C09J2483/00C09J2301/208C08L23/28C08K5/1345C08K5/526C08K5/14C08K3/32C08K13/02
Inventor 吕松
Owner CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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