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Fire resistant back-heet for photovoltaic module

A photovoltaic module and backplane technology, which is applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of affecting the electrical insulation performance of the backplane and difficult to be permanently attached.

Inactive Publication Date: 2013-08-21
EI DU PONT DE NEMOURS & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metal foils and plates are difficult to permanently attach to other polymer backsheet layers, and they can affect the electrical insulation properties of the backsheet

Method used

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  • Fire resistant back-heet for photovoltaic module
  • Fire resistant back-heet for photovoltaic module
  • Fire resistant back-heet for photovoltaic module

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0069] Flexible mica sheet was obtained from PAMICA Electric Material (Hubei) Co., Ltd. (Xianning, China) under product number PB5161. The mica sheet is composed of 90% by weight of muscovite, based on the weight of the sheet, and the sheet is impregnated with 8% by weight of a high temperature resistant silicone resin. The sheet has an average density of 1.9 g / cm 3 , and the basis weight is about 381g / m 2 . The sheet thickness was 7.9 mils (201 microns).

example 2

[0071] Flexible mica sheet was obtained from PAMICA Electric Material (Hubei) Co., Ltd. (Xianning, China) under product number PJ5161. The mica sheet is composed of 90% by weight of phlogopite mica based on the weight of the sheet, and the sheet is impregnated with 8% by weight of the high temperature resistant silicone resin. The sheet has an average density of 1.9 g / cm 3 And the basis weight is about 381g / m 2 . The sheet thickness was 7.9 mils (201 microns).

example 3

[0073] Flexible glass-backed mica sheet was obtained from PAMICA Electric Material (Hubei) Co., Ltd. (Xianning, China) under product number S140G32. The mica sheet is composed of 90% by weight of mica based on the weight of the sheet, and the sheet is impregnated with 8% by weight of the high temperature resistant silicone resin. Basis weight is about 195g / m 2 . The sheet thickness was 5.8 mils (147 microns).

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Abstract

A back-sheet for a photovoltaic module comprises a fire resistant sheet adhered to a fluoropolymer film. The fire resistant sheet comprises 40 to 100 weight percent of crystallized mineral silicate platelets based on the weight of the fire resistant sheet, and the fire resistant sheet has an average thickness of at least 75 microns, and more preferably at least 100 microns. The crystallized mineral silicate platelets of the fire resistant sheet are selected from the group of mica, vermiculite, calcined clay, silica, talc, wollastonite, and combinations thereof. A photovoltaic module made with such a back-sheet is also disclosed.

Description

technical field [0001] The present invention relates to a backsheet laminate for a photovoltaic module, and more particularly to a flame-retardant backsheet laminate. The invention also relates to photovoltaic modules incorporating such flame retardant backsheet laminates. Background technique [0002] As a renewable energy source, the use of photovoltaic modules is rapidly increasing. Photovoltaic modules (also known as solar modules) refer to photovoltaic devices for generating electricity directly from sunlight, in particular from sunlight. As the use of photovoltaic modules grows, the demand for photovoltaic modules suitable for harsh environments is increasing. Photovoltaic modules are typically mounted on outdoor locations such as roofs, walls or other supporting structures. Many sunny climate zones are also where fires are a concern. Photovoltaic modules installed in fire-prone areas outside the building must be flame retardant. [0003] Such as figure 1 As show...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048
CPCB32B17/10018B32B17/10788B32B2262/101B32B2264/102B32B2307/3065B32B2327/12Y02E10/50H01L31/049Y10T428/251Y10T428/259Y10T442/10
Inventor A·B·斯塔瑞B·C·奥曼C·R·海格R·C·威克斯
Owner EI DU PONT DE NEMOURS & CO
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