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CN-121358009-B - Photovoltaic curtain wall assembly and preparation method thereof

CN121358009BCN 121358009 BCN121358009 BCN 121358009BCN-121358009-B

Abstract

The application relates to a photovoltaic curtain wall assembly and a preparation method of the photovoltaic curtain wall assembly. The photovoltaic curtain wall assembly comprises a first glass layer, a first adhesive film layer, a second glass layer, a first battery layer, a second adhesive film layer and a second battery layer. The first adhesive film layer is positioned on one side of the backlight surface of the first glass layer, the second glass layer is positioned on one side of the first adhesive film layer, which is away from the first glass layer, the first battery layer is positioned on one side of the second glass layer, which is away from the first adhesive film layer, the second adhesive film layer is positioned on one side of the first battery layer, which is away from the second glass layer, and the second battery layer is positioned on one side of the second adhesive film layer, which is away from the first battery layer, wherein the peeling strength between the first adhesive film layer and the first glass layer is greater than the peeling strength between the second adhesive film layer and the second battery layer. The first glass layer of the photovoltaic curtain wall assembly is not easy to separate from the first adhesive film layer under the influence of the wind, the sun and the sun, so that the service life and the reliability of the whole photovoltaic curtain wall are higher.

Inventors

  • HU WEIGUO
  • XIA RUOXI
  • WEN SHUXIN
  • REN JUN
  • ZHU CHEN

Assignees

  • 宁德时代新能源科技股份有限公司

Dates

Publication Date
20260512
Application Date
20251218

Claims (14)

  1. 1. A photovoltaic curtain wall assembly, characterized in that the photovoltaic curtain wall assembly comprises: A first glass layer (100); the first adhesive film layer (200) is positioned on one side of the backlight surface of the first glass layer (100); A second glass layer (300) located on a side of the first adhesive film layer (200) facing away from the first glass layer (100); a first battery layer (400) located on a side of the second glass layer (300) facing away from the first adhesive film layer (200); a second adhesive film layer (500) positioned on one side of the first battery layer (400) away from the second glass layer (300); A second battery layer (600) located on a side of the second adhesive film layer (500) facing away from the first battery layer (400); The adhesive film material of the first adhesive film layer (200) is different from that of the second adhesive film layer (500), the peeling strength between the first adhesive film layer (200) and the first glass layer (100) is larger than that between the second adhesive film layer (500) and the second battery layer (600), the peeling strength P1 between the first adhesive film layer (200) and the first glass layer (100) is larger than or equal to 20N/cm, and the peeling strength P2 between the second adhesive film layer (500) and the second battery layer (600) meets the condition that P2 is larger than or equal to 10N/cm and smaller than or equal to 80N/cm.
  2. 2. The photovoltaic curtain wall assembly according to claim 1, wherein the first adhesive film layer (200) comprises at least one of polyvinyl butyral, ethylene-vinyl acetate copolymer, polyolefin elastomer, and ethylene/vinyl acetate/ethylene copolymer adhesive film.
  3. 3. The photovoltaic curtain wall assembly according to claim 1, characterized in that the second glue film layer (500) comprises thermoplastic polyolefin.
  4. 4. The photovoltaic curtain wall assembly according to claim 1, characterized in that the thickness h1 of the first glue film layer (200) satisfies the condition: h1 is 0.52mm or less and h1 is 2mm or less, and/or The thickness h2 of the second adhesive film layer (500) satisfies the condition: 0.42mm≤h2≤2mm。
  5. 5. the photovoltaic curtain wall assembly of any of claims 1-4, wherein the photovoltaic curtain wall assembly comprises: The third adhesive film layer (700) is arranged on one side of the second battery layer (600) away from the second adhesive film layer (500); The third glass layer (800) is arranged on one side of the third adhesive film layer (700) away from the second battery layer (600); and the fourth adhesive film layer (900) is at least partially arranged on the periphery of the first battery layer (400) and the second battery layer (600) in a surrounding mode.
  6. 6. The photovoltaic curtain wall assembly according to claim 5, characterized in that the thickness h3 of the first glass layer (100) satisfies the condition: h3 is 5mm or less and 22mm or less, and/or The thickness h4 of the second glass layer (300) satisfies the condition: h4 is 1.1mm or less and 5mm or less, and/or The thickness h5 of the third glass layer (800) satisfies the condition: 5mm≤h5≤22mm。
  7. 7. The preparation method of the photovoltaic curtain wall component is characterized by comprising the following steps of: sequentially stacking a first glass layer (100), a first adhesive film layer (200) and a second glass layer (300) to form a first lamination; laminating the first laminate; Forming a first battery layer (400) on one side of the second glass layer (300) away from the first adhesive film layer (200); sequentially laminating one side of the first battery layer (400) away from the first lamination to form a second adhesive film layer (500) and a second battery layer (600); The first adhesive film layer (200) and the second adhesive film layer (500) are made of different adhesive film materials, and the peeling strength between the first adhesive film layer (200) and the first glass layer (100) is greater than the peeling strength between the second adhesive film layer (500) and the second battery layer (600).
  8. 8. The method for manufacturing a photovoltaic curtain wall assembly according to claim 7, wherein the step of sequentially laminating the first battery layer (400) on the side facing away from the first lamination sheet to form a second adhesive film layer (500) and a second battery layer (600) specifically comprises: sequentially stacking the first lamination, the first battery layer (400), the second adhesive film layer (500), the second battery layer (600), a third adhesive film layer (700) and a third glass layer (800) to form a second lamination; Laminating the second laminate.
  9. 9. The method of manufacturing a photovoltaic curtain wall assembly according to claim 8, wherein a first preset temperature T1 at which the first lamination is laminated is higher than a second preset temperature T2 at which the second lamination is laminated.
  10. 10. The method for manufacturing a photovoltaic curtain wall assembly according to claim 9, wherein the first preset temperature T1 satisfies the condition: 130 ℃ less than or equal to T1 less than or equal to 150 ℃, and/or The second preset temperature T2 satisfies the condition: 100°C≤T2≤120°C。
  11. 11. The method of manufacturing a photovoltaic curtain wall assembly of claim 8, further comprising: Laminating the first laminate at a first pressure p 1; Laminating the second laminate at a second pressure p 2; The first pressure p1 is smaller than the second pressure p2.
  12. 12. The method for manufacturing a photovoltaic curtain wall assembly according to claim 11, wherein, The first pressure p1 is 40Kpa-65Kpa, and/or The second pressure p2 is 50Kpa-85Kpa.
  13. 13. The method of manufacturing a photovoltaic curtain wall assembly of claim 8, further comprising: laminating the first lamination for a first preset time period t 1; laminating the second lamination for a second preset time period t 2; the first preset duration t1 is greater than or equal to the second preset duration t2.
  14. 14. The method of manufacturing a photovoltaic curtain wall assembly according to claim 13, wherein, The first preset time period t1 is 20min-30min, and/or The second preset time period t2 is 10min-20min.

Description

Photovoltaic curtain wall assembly and preparation method thereof Technical Field The application relates to the technical field of photovoltaic buildings, in particular to a photovoltaic curtain wall assembly and a preparation method of the photovoltaic curtain wall assembly. Background The photovoltaic building integration combines solar photovoltaic power generation with a building body, and the photovoltaic cell is a part of the building, so that precious land resources are saved, and electricity can be supplied to the interior of the building nearby. In the use of the photovoltaic curtain wall, the photovoltaic curtain wall is influenced by wind blowing and sun exposure, so that the glass layer of the photovoltaic curtain wall is easy to peel off, damage and drop under the action of gravity, and the service life and reliability of the whole photovoltaic curtain wall are further reduced. Disclosure of Invention In view of the above problems, the application provides a photovoltaic curtain wall assembly and a preparation method thereof, which can reduce the probability of peeling damage and falling of a glass layer of a photovoltaic curtain wall prepared by the photovoltaic curtain wall assembly under the action of gravity, thereby prolonging the service life and improving the reliability of the photovoltaic curtain wall. In a first aspect, the application provides a photovoltaic curtain wall assembly, which comprises a first glass layer, a first adhesive film layer, a second glass layer, a first battery layer, a second adhesive film layer and a second battery layer. The first adhesive film layer is positioned on one side of the backlight surface of the first glass layer, the second glass layer is positioned on one side of the first adhesive film layer, which is away from the first glass layer, the first battery layer is positioned on one side of the second glass layer, which is away from the first adhesive film layer, the second adhesive film layer is positioned on one side of the first battery layer, which is away from the second glass layer, and the second battery layer is positioned on one side of the second adhesive film layer, which is away from the first battery layer, wherein the peeling strength between the first adhesive film layer and the first glass layer is greater than the peeling strength between the second adhesive film layer and the second battery layer. According to the photovoltaic curtain wall assembly provided by the embodiment of the application, the first glass layer and the second glass layer which are positioned at the outer side are connected by the first adhesive film layer, the first battery layer and the second battery layer are connected by the second adhesive film layer, the peeling strength between the first adhesive film layer and the first battery layer is larger than that between the second adhesive film layer and the second battery layer, namely, the outer side glass and the photovoltaic cell have higher bonding strength, and the outer side first glass layer is more easily influenced by external environment such as the environment of blowing and sun, and is not easily separated from the first adhesive film layer under higher adhesive force, so that the service life and reliability of the whole photovoltaic curtain wall are higher. In some embodiments, the peel strength P1 between the first adhesive film layer and the first glass layer is 20N/cm or more. The peeling strength P1 between the first adhesive film layer and the first glass layer is set to be more than or equal to 20N/cm, so that the adhesive strength between the first adhesive film layer and the first glass layer can be met, and when the first glass layer is influenced by the wind blowing sun of the external environment, the first glass layer is not easy to separate from the first adhesive film layer. In some embodiments, the peel strength P2 between the second adhesive film layer and the second battery layer satisfies the condition that 10N/cm≤P2≤80N/cm. The peel strength P2 between the second adhesive film layer and the second battery layer is set to be in the range of 10N/m or more and 80N/cm or less, so that the second adhesive film layer and the second battery layer have enough bonding strength, and the second adhesive film layer can be made of conventional thermoplastic polyolefin materials. In some embodiments, the first film layer comprises at least one of polyvinyl butyral, ethylene-vinyl acetate copolymer, polyolefin elastomer, and ethylene/vinyl acetate/ethylene copolymer film. Through setting up first glued membrane layer to at least one of polyvinyl butyral, ethylene-vinyl acetate copolymer, polyolefin elastomer and polyethylene-polypropylene copolymer to make first glued membrane layer laminate at higher temperature, and its and the adhesiveness between the first glass layer is better, peel strength is higher, and the weatherability is better, and the steam separation nature is also better, and