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High-weather-resistant heat-conducting photovoltaic gap film and preparation method thereof

A gap, photovoltaic technology, applied in the direction of film/sheet adhesives, adhesives, etc., can solve the problems of poor weather resistance of reflective films and high local temperature of cells, and achieve good thermal conductivity, improved service life, and good reflectivity. Effect

Pending Publication Date: 2022-03-18
CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a highly weather-resistant and heat-conductive gap film for photovoltaics and its preparation method to solve the problems of excessive local temperature of the battery sheet caused by reflection and poor weather resistance of the traditional gap reflective film

Method used

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  • High-weather-resistant heat-conducting photovoltaic gap film and preparation method thereof
  • High-weather-resistant heat-conducting photovoltaic gap film and preparation method thereof
  • High-weather-resistant heat-conducting photovoltaic gap film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as figure 1 As shown, a highly weather-resistant and thermally conductive photovoltaic gap reflective film has a five-layer structure from bottom to top, an adhesive layer 1, a weather-resistant carrier layer 2, a prism layer 3, a reflective layer 4, and a heat-conducting layer 5. The thickness of the adhesive layer 1 is 50 μm; the thickness of the weather-resistant carrier layer 2 is 80 μm; the height from the bottom line to the edge of the prism layer 3 is 30 μm; the thickness of the reflective layer 4 is 70 nm; the thickness of the heat conduction layer 5 is 95 μm.

[0028] The method for making the above-mentioned gap film for high weather resistance and heat conduction photovoltaics includes:

[0029] (1) A plurality of prism structures are pre-prepared on the surface of the pressure roller, and then the surface of the weather-resistant carrier layer 2 is coated with a UV-curable adhesive resin and passed through the pressure roller. On the weather-resistant...

Embodiment 2

[0036] Such as figure 1 As shown, a highly weather-resistant and thermally conductive photovoltaic gap reflective film has a five-layer structure from bottom to top, an adhesive layer 1, a weather-resistant carrier layer 2, a prism layer 3, a reflective layer 4, and a heat-conducting layer 5. The thickness of the adhesive layer 1 is 10 μm; the thickness of the weather-resistant carrier layer 2 is 60 μm; the height from the bottom line to the edge of the prism layer 3 is 25 μm; the thickness of the reflective layer 4 is 70 nm; the thickness of the heat conduction layer 5 is 70 μm.

[0037] The method for making the above-mentioned gap film for high weather resistance and heat conduction photovoltaics includes:

[0038] (1) A plurality of prism structures are pre-prepared on the surface of the pressure roller, and then the surface of the weather-resistant carrier layer 2 is coated with a UV-curable adhesive resin and passed through the pressure roller. On the weather-resistant...

Embodiment 3

[0045] Such as figure 1 As shown, a highly weather-resistant and thermally conductive photovoltaic gap reflective film has a five-layer structure from bottom to top, an adhesive layer 1, a weather-resistant carrier layer 2, a prism layer 3, a reflective layer 4, and a heat-conducting layer 5. The thickness of the adhesive layer 1 is 80 μm; the thickness of the weather-resistant carrier layer 2 is 100 μm; the height from the bottom line to the edge of the prism layer 3 is 50 μm; the thickness of the reflective layer 4 is 100 nm; the thickness of the heat conduction layer 5 is 100 μm.

[0046] The method for making the above-mentioned gap film for high weather resistance and heat conduction photovoltaics includes:

[0047] (1) A plurality of prism structures are pre-prepared on the surface of the pressure roller, and then the surface of the weather-resistant carrier layer 2 is coated with a UV-curable adhesive resin and passed through the pressure roller. On the weather-resist...

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Abstract

The invention provides a high-weather-resistant heat-conducting photovoltaic gap film and a preparation method thereof. The high-weather-resistant heat-conducting photovoltaic gap film is sequentially provided with a bonding layer, a weather-resistant carrier layer, a prism layer, a light reflecting layer and a heat conducting layer. The pasting film is good in heat conduction performance and convenient to dissipate heat; the damp-heat aging resistance is good; the reflective layer and the prism layer are not easy to damage, the overall reflectivity of the product is good, and the service life of the assembly can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of heat-conducting reflective film in the photovoltaic industry, and specifically relates to a gap film for high weather resistance and heat-conducting photovoltaics and a preparation method thereof. Background technique [0002] Please read figure 2 , figure 2 It is a schematic diagram of the reflection principle of the gap reflective film for thermally conductive photovoltaics. Such as figure 2 As shown, the reflective film in the gap mainly reflects the sunlight in the gap between the battery sheet and the battery sheet to the battery sheet, thereby effectively utilizing the sunlight in the non-cell area, thereby increasing the power of its components. However, the sunlight reflected to the cell will cause the local temperature at the edge of the cell to be too high, which will affect the service life of the module. The gap reflective film is generally bonded to the transparent backplane or back glass...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29
CPCC09J7/29C09J2301/122C09J2203/33C09J2203/322C09J2301/16C09J2477/006C09J2479/086
Inventor 吴斌吕松黄宝玉张刚季志超徐炜琴刘俊陈书亮杨求平吴丰华
Owner CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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