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1. WO2022068017 - PHOTOVOLTAIC MODULE BACK SHEET AND PHOTOVOLTAIC MODULE HAVING SAME

Publication Number WO/2022/068017
Publication Date 07.04.2022
International Application No. PCT/CN2020/129837
International Filing Date 18.11.2020
IPC
H01L 31/049 2014.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
04adapted as photovoltaic conversion devices
042PV modules or arrays of single PV cells
048Encapsulation of modules
049Protective back sheets
H01L 31/048 2014.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
04adapted as photovoltaic conversion devices
042PV modules or arrays of single PV cells
048Encapsulation of modules
H01L 31/056 2014.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
04adapted as photovoltaic conversion devices
054Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
056the light-reflecting means being of the back surface reflector type
CPC
H01L 31/0481
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
04adapted as photovoltaic [PV] conversion devices
042PV modules or arrays of single PV cells
048Encapsulation of modules
0481characterised by the composition of the encapsulation material
H01L 31/049
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
04adapted as photovoltaic [PV] conversion devices
042PV modules or arrays of single PV cells
048Encapsulation of modules
049Protective back sheets
H01L 31/056
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
04adapted as photovoltaic [PV] conversion devices
054Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
056the light-reflecting means being of the back surface reflector [BSR] type
Y02E 10/52
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
10Energy generation through renewable energy sources
50Photovoltaic [PV] energy
52PV systems with concentrators
Applicants
  • 苏州福斯特光伏材料有限公司 SUZHOU FIRST PV MATERIAL CO., LTD. [CN]/[CN]
Inventors
  • 杨小旭 YANG, Xiaoxu
  • 王富成 WANG, Fucheng
  • 赵勇 ZHAO, Yong
  • 俞晓桦 YU, Xiaohua
  • 李楠楠 LI, Nannan
Agents
  • 北京康信知识产权代理有限责任公司 KANGXIN PARTNERS, P.C.
Priority Data
202011062991.830.09.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) PHOTOVOLTAIC MODULE BACK SHEET AND PHOTOVOLTAIC MODULE HAVING SAME
(FR) FEUILLE ARRIÈRE DE MODULE PHOTOVOLTAÏQUE ET SYSTÈME PHOTOVOLTAÏQUE COMPRENANT CELLE-CI
(ZH) 光伏组件背板及含其光伏组件
Abstract
(EN) The present invention provides a photovoltaic module back sheet and a photovoltaic module having same. The photovoltaic module back sheet comprises an insulating layer, a reflecting layer, a first decorative layer and a first transparent protective layer which are stacked in sequence, and matrix resin forming the reflecting layer and the first decorative layer is fluorine-containing resin. The matrix resin forming the reflecting layer is the same as the matrix resin forming the first decorative layer, so that the compatibility between the reflecting layer and the first decorative layer can be greatly improved, and the layering risk of the photovoltaic module back sheet is reduced. The fluorine-containing resin has good weather resistance, chemical stability, flame retardance, a low friction coefficient and the like, so that the fluorine-containing resin is selected as the matrix resin of the reflecting layer and the first decorative layer; moreover, the first transparent protective layer is arranged, so that the ultraviolet blocking rate, weather resistance, flame retardance, aesthetics and insulativity of the photovoltaic module are greatly improved. Because a pattern in the first decorative layer can fill the gap and the edge of a target photovoltaic module, the photovoltaic module back sheet has good aesthetic property.
(FR) La présente invention concerne une feuille arrière de module photovoltaïque et un module photovoltaïque comprenant celle-ci. La feuille arrière de module photovoltaïque comprend une couche isolante, une couche réfléchissante, une première couche décorative et une première couche protectrice transparente qui sont empilées en séquence, et une résine de matrice qui forme la couche réfléchissante et la première couche décorative est une résine contenant du fluor. La résine de matrice qui forme la couche réfléchissante est la même que la résine de matrice qui forme la première couche décorative, de sorte que la compatibilité entre la couche réfléchissante et la première couche décorative peut être considérablement améliorée, et le risque de stratification de la feuille arrière de module photovoltaïque est réduit. La résine contenant du fluor présente une bonne résistance aux intempéries, une bonne stabilité chimique, un bon retard de flamme, un faible coefficient de frottement et similaire, de sorte que la résine contenant du fluor est sélectionnée en tant que résine de matrice de la couche réfléchissante et de la première couche décorative. De plus, la première couche de protection transparente est disposée de telle sorte que le taux de blocage des ultraviolets, la résistance aux intempéries, le retard de flamme, l'esthétique et l'isolation du module photovoltaïque sont considérablement améliorés. Du fait qu'un motif dans la première couche décorative peut remplir l'espace et le bord d'un module photovoltaïque cible, la feuille arrière de module photovoltaïque possède une bonne propriété esthétique.
(ZH) 本发明提供了一种光伏组件背板及含其光伏组件。该光伏组件背板包括依次层叠设置的绝缘层、反射层和第一装饰层及第一透明保护层,形成反射层和第一装饰层的基体树脂为含氟树脂。形成反射层和第一装饰层的基体树脂相同能够大大提高反射层和第一装饰层之间的相容性,降低光伏组件背板的分层风险。含氟树脂具有良好的耐候性、化学稳定性、阻燃性能和低摩擦系数等性,因而选用含氟树脂作为反射层和第一装饰层的基体树脂,同时设置第一透明保护层有利于大大提高光伏组件的紫外线阻隔率、耐候性、阻燃性、美观性和绝缘性。由于第一装饰层中的图案能够填补目标光伏组件的间隙及边缘,这使得光伏组件背板具有较好的美观性。
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