CN-122002962-A - Photovoltaic module

CN122002962ACN 122002962 ACN122002962 ACN 122002962ACN-122002962-A

Abstract

The invention discloses a photovoltaic module. The photovoltaic module comprises a panel, a back plate, a battery piece layer and a first packaging adhesive film layer, wherein the back plate and the panel are stacked, the battery piece layer is positioned between the panel and the back plate, the first packaging adhesive film layer is positioned between the battery piece layer and the panel, one side, deviating from the first packaging adhesive film layer, of the panel is provided with a fluorine-containing film layer, at least one side, along the thickness direction, of the fluorine-containing film layer is provided with an anti-reflection layer, and the fluorine-containing film layer is a light-transmitting layer. The fluorine-containing film layer has good hydrophobicity, can resist dirt and prevent dust deposition, and can improve the difficulty of depositing impurities such as sewage, dust and the like on the panel by arranging the fluorine-containing film layer on the panel, so that the panel is easy to clean. In addition, the reflection reducing layer can reduce the reflection of solar rays on the panel, so that the incidence quantity of the solar rays is increased, the generating capacity of solar energy is increased, and the light pollution phenomenon of buildings is reduced.

Inventors

ZHU YANJUN
HAN YINGJIE

Assignees

深圳市华宝新能源股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241104

Claims (10)

1. A photovoltaic module, comprising: A panel; a back plate laminated with the face plate; a battery sheet layer positioned between the face plate and the back plate, and The first packaging adhesive film layer is positioned between the battery piece layer and the panel; The panel deviates from one side of first encapsulation glued membrane layer is equipped with the fluorine-containing rete, the fluorine-containing rete is equipped with the anti-layer of subtracting along at least one side of thickness direction, the fluorine-containing rete is the printing opacity layer.
2. The photovoltaic module of claim 1, wherein a surface of the anti-reflection layer is formed with a plurality of grooves.
3. The photovoltaic module of claim 1, wherein the fluorine-containing film layer has a transmittance that is greater than a transmittance of the panel.
4. The photovoltaic module of claim 1, wherein the fluorine-containing film layer is made of ETFE or PVDF or one of PVF or ECTFE.
5. The photovoltaic module of claim 1, wherein the backsheet has a light transmittance that is less than the light transmittance of the faceplate.
6. The photovoltaic module of claim 1, wherein the thickness of the face sheet is 0.18mm to 0.3mm and/or the thickness of the back sheet is 0.18mm to 0.4mm.
7. The photovoltaic module of claim 1, comprising a second layer of packaging adhesive film between the cell sheet layer and the backsheet.
8. The photovoltaic module of claim 1, comprising a third encapsulation film layer positioned between the fluorine-containing film layer and the panel.
9. The photovoltaic module of claim 1, wherein the cell layer comprises a plurality of cell strings, the plurality of cell strings being connected in series, each cell string comprising a plurality of cell sheets, all of the cell sheets in each cell string being connected in series by a solder strip.
10. The photovoltaic module of claim 9, wherein the solder strip comprises a plurality of first solder segments connected to a corresponding one of the battery cells and at least one second solder segment connecting adjacent two of the first solder segments in a first direction, the second solder segment being located between and spanning a lamination area of adjacent two of the battery cells, the second solder segment being flat.

Description

Photovoltaic module Technical Field The invention relates to the technical field of photovoltaics, in particular to a photovoltaic module. Background Currently, the application field of photovoltaic power generation is wide, solar energy and building integrated design (BIPV) gradually becomes trend, and a residential roof is a main application area of distributed photovoltaic. In the related art, the reflectivity of the photovoltaic module is high, a large light pollution phenomenon can be caused, and the surface of the photovoltaic module is not easy to clean. Disclosure of Invention The invention provides a photovoltaic module. The photovoltaic module comprises a panel, a back plate, a battery piece layer and a first packaging adhesive film layer, wherein the back plate and the panel are arranged in a stacked mode, the battery piece layer is positioned between the panel and the back plate, the first packaging adhesive film layer is positioned between the battery piece layer and the panel, one side, away from the first packaging adhesive film layer, of the panel is provided with a fluorine-containing film layer, at least one side, in the thickness direction, of the fluorine-containing film layer is provided with an anti-reflection layer, and the fluorine-containing film layer is a light-transmitting layer. The fluorine-containing film layer has good hydrophobicity, can resist dirt and prevent dust deposition, and can improve the difficulty of depositing impurities such as sewage, dust and the like on the panel by arranging the fluorine-containing film layer on the panel, so that the panel is easy to clean. In addition, the reflection reducing layer can reduce the reflection of solar rays on the panel, so that the incidence quantity of the solar rays is increased, the generating capacity of solar energy is increased, and the light pollution phenomenon of buildings is reduced. In some embodiments, the surface of the anti-reflection layer is formed with a plurality of grooves. In certain embodiments, the optical transmittance of the fluorine-containing film layer is greater than the optical transmittance of the panel. In certain embodiments, the fluorine-containing membrane layer is made of ETFE or PVDF or one of PVF or ECTFE. In some embodiments, the light transmittance of the back sheet is less than the light transmittance of the face sheet. In some embodiments, the thickness of the face sheet is 0.18mm to 0.3mm and/or the thickness of the back sheet is 0.18mm to 0.4mm. In some embodiments, the photovoltaic module includes a second layer of encapsulant film between the cell sheet layer and the backsheet. In some embodiments, the photovoltaic module includes a third encapsulating film layer positioned between the fluorine-containing film layer and the panel. In some embodiments, the battery sheet layer comprises a plurality of battery strings connected in series, each battery string comprising a plurality of battery sheets, all of the battery sheets in each battery string being connected in series by a solder strip. In some embodiments, the solder strip includes a plurality of first solder segments connected to a corresponding one of the battery pieces and at least one second solder segment connecting adjacent two of the first solder segments in a first direction, the second solder segment being located between and spanning a lamination area of adjacent two of the battery pieces, the second solder segment being flat. Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Drawings The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which: fig. 1 is a schematic perspective view of a photovoltaic module according to an embodiment of the present invention; Fig. 2 is a schematic structural view of a photovoltaic module according to an embodiment of the present invention; FIG. 3 is a schematic view of the structure of a photovoltaic module according to an embodiment of the present invention with the front side facing upwards; fig. 4 is a schematic view of the structure of the photovoltaic module according to the embodiment of the present invention with the back surface facing upward; FIG. 5 is a schematic side view of a photovoltaic module according to an embodiment of the present invention; fig. 6 is a partial schematic view of a solder strip according to an embodiment of the present invention. The reference numerals indicate 100, a photovoltaic module, 10, a panel, 20, a back plate, 30, a battery piece layer, 31, a battery string, 32, a battery piece, 33, a welding strip, 34, a first welding section, 35, a second welding section, 36, a lamination area, 40, a first packaging adhesive f