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CN-118380488-B - Photovoltaic laminate, photovoltaic module and photovoltaic module array

CN118380488BCN 118380488 BCN118380488 BCN 118380488BCN-118380488-B

Abstract

The invention provides a photovoltaic laminated piece, a photovoltaic module and a photovoltaic module array, relates to the technical field of photovoltaics, and aims to solve the technical problems that the photovoltaic module cannot meet the mechanical load requirement and accumulated water and dust cannot be thoroughly cleaned. The photovoltaic laminated piece at least comprises a laminated cover plate, a first adhesive film and a second adhesive film, wherein a preset edge of the photovoltaic laminated piece is provided with a sewage draining structure formed on the first adhesive film, the sewage draining structure comprises a plurality of first protruding structures and at least one first groove structure which are alternately distributed along the extending direction of the preset edge, the cover plate is provided with a concave structure formed in the at least one first groove structure, the first peripheral side wall of the concave structure is attached to the third peripheral side wall of the corresponding first groove structure, the bottom wall of the concave structure is attached to the second adhesive film, and the at least one concave structure is used for accommodating at least part of the corresponding second protruding structure on the preset frame of the photovoltaic laminated piece. The photovoltaic laminated piece can prevent water accumulation and dust accumulation at the position of the preset frame, and simultaneously meets the requirement of mechanical load.

Inventors

  • NI XIN
  • LI LINGXIAN
  • CHEN BIN

Assignees

  • 晶澳(扬州)新能源有限公司

Dates

Publication Date
20260512
Application Date
20240328

Claims (10)

  1. 1. A photovoltaic laminate comprising at least a laminated cover sheet, a first adhesive film and a second adhesive film; The photovoltaic laminated piece is provided with a blow-down structure formed on the first adhesive film, and the blow-down structure comprises a plurality of first bulge structures and at least one first groove structure which are alternately distributed along the extending direction of the preset edge; The cover plate is provided with a concave structure formed in the at least one first groove structure, the peripheral side wall of the concave structure is a first peripheral side wall, the peripheral side wall of the first groove structure is a third peripheral side wall, the first peripheral side wall is attached to the corresponding third peripheral side wall, and the bottom wall of the concave structure is attached to the second adhesive film; At least one of the concave structures is used for accommodating at least part of a corresponding second convex structure on a preset frame of the photovoltaic laminate.
  2. 2. The photovoltaic laminate of claim 1 wherein the cross-sectional shape of the drainage structure is one of wavy, saw tooth or triangular.
  3. 3. A photovoltaic module characterized by comprising a preset frame and the photovoltaic laminate of claim 1 or 2, wherein the preset frame is provided with a first face, a second face and a third face which are enclosed into a containing space, the third face is used for supporting a preset edge of the photovoltaic laminate, and the second face is used for being attached to the side face of the preset edge of the photovoltaic laminate; The preset frame is provided with at least one second protruding structure and a plurality of second groove structures, wherein the second protruding structure is formed on the first face and protrudes in a direction away from the second face; Each of the second groove structures corresponds to one of the first protrusion structures, and one of the at least one second protrusion structure corresponds to one of the at least one recess structure.
  4. 4. The photovoltaic module of claim 3, wherein the second raised structures have a thickness no greater than the depth of the recessed structures, wherein, The thickness direction of the second protruding structures and the depth direction of the recessed structures refer to the distribution direction from the first adhesive film to the second adhesive film in the photovoltaic laminated piece.
  5. 5. The photovoltaic module of claim 3, further comprising a backsheet disposed on a side of the second adhesive film facing away from the first adhesive film, wherein a thickness of a portion of the second face at the second groove structure is no greater than a predetermined thickness, the predetermined thickness being a total thickness of the second adhesive film and the backsheet; the thickness direction of the second surface, the thickness direction of the second adhesive film and the thickness direction of the back plate all refer to the distribution direction from the first adhesive film to the second adhesive film in the photovoltaic laminate.
  6. 6. The photovoltaic module of claim 3, further comprising a drain flow channel comprising at least one first flow channel segment in communication with an exterior of the pre-set frame; the first flow channel section is a gap formed by the second peripheral side wall and the first peripheral side wall which are arranged at intervals, wherein the peripheral side wall of the second bulge structure is the second peripheral side wall, and the peripheral side wall of the concave structure is the first peripheral side wall.
  7. 7. The photovoltaic module of claim 6, wherein the drainage channel further comprises a plurality of second channel segments in communication with the at least one first channel segment, the second channel segments being gaps formed by the tips of the first raised structures spaced from the second face.
  8. 8. The photovoltaic module according to claim 3, wherein the shape of the second raised structures is consistent or inconsistent with the shape of the recessed structures, and/or, The shape of the first protruding structure is consistent with or inconsistent with the shape of the second groove structure.
  9. 9. The photovoltaic module of claim 3, wherein the cover plate is a flexible cover plate.
  10. 10. A photovoltaic module array comprising a plurality of photovoltaic modules, at least one of the photovoltaic modules being a photovoltaic module according to any one of claims 3-9, the predetermined frame of the photovoltaic module being adjacent to the ground.

Description

Photovoltaic laminate, photovoltaic module and photovoltaic module array Technical Field The invention relates to the technical field of photovoltaics, in particular to a photovoltaic laminated piece, a photovoltaic module and a photovoltaic module array. Background The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. Photovoltaic modules typically include a photovoltaic laminate and a frame surrounding the photovoltaic laminate for protecting the photovoltaic laminate and providing support. Because the photovoltaic laminate is enclosed by surrounding frames, and the positions of the frames attached to the cover plate of the photovoltaic laminate are higher than the surface of the cover plate of the photovoltaic laminate, water and dust are accumulated on the cover plate of the photovoltaic laminate easily, the effective power generation area of the photovoltaic cell panel is reduced, the mismatch of battery current in the photovoltaic module is caused, and the hot spot phenomenon is caused. In the related art, the design of preventing ponding and dust accumulation of the photovoltaic module causes the problem that the mechanical load is insufficient or the accumulated dust is not thoroughly cleaned. Disclosure of Invention The invention aims to provide a photovoltaic laminated piece, a photovoltaic module and a photovoltaic module array, which are used for solving the technical problems that the photovoltaic module cannot meet the standard in mechanical load and accumulated water and dust are thoroughly cleaned. In order to achieve the above object, the present invention provides the following technical solutions: in a first aspect, the present invention provides a photovoltaic laminate comprising at least a laminated cover sheet, a first adhesive film and a second adhesive film, The photovoltaic laminated piece is provided with a blow-down structure formed on the first adhesive film, and the blow-down structure comprises a plurality of first bulge structures and at least one first groove structure which are alternately distributed along the extending direction of the preset edge; The cover plate is provided with a concave structure formed in the at least one first groove structure, a first peripheral side wall of the concave structure is attached to a third peripheral side wall of the corresponding first groove structure, and a bottom wall of the concave structure is attached to the second adhesive film; At least one of the concave structures is used for accommodating at least part of a corresponding second convex structure on a preset frame of the photovoltaic laminate. According to at least one embodiment of the present invention, the cross-sectional shape of the sewage draining structure is one of wavy, zigzag or triangular waveform. In a second aspect, the present invention further provides a photovoltaic module, including a preset frame and the photovoltaic laminate of the first aspect, where the preset frame has a first face, a second face and a third face that are enclosed to form a containing space, the third face is used to support a preset edge of the photovoltaic laminate, and the second face is used to attach to a side surface of the preset edge of the photovoltaic laminate; The preset frame is provided with at least one second protruding structure and a plurality of second groove structures, wherein the second protruding structure is formed on the first face and protrudes in a direction away from the second face; Each of the second groove structures corresponds to one of the first protrusion structures, and one of the at least one second protrusion structure corresponds to one of the at least one recess structure. According to at least one embodiment of the present invention, the second raised structures have a thickness no greater than the depth of the recessed structures, wherein, The thickness direction of the second protruding structures and the depth direction of the recessed structures refer to the distribution direction from the first adhesive film to the second adhesive film in the photovoltaic laminated piece. According to at least one embodiment of the present invention, the photovoltaic laminate further includes a back sheet disposed on a side of the second adhesive film facing away from the first adhesive film, and a thickness of a portion of the second face located in the second groove structure is not greater than a preset thickness, where the preset thickness is a total thickness of the second adhesive film and the back sheet; the thickness direction of the second surface, the thickness direction of the second adhesive film and the thickness direction of the back plate all refer to the distribution direction from the first adhesive film to the second adhesive film in the photovoltaic laminate. According to at least one embodiment of the invention, the photovoltaic module further has