Photovoltaic module

Abstract

The utility model relates to photovoltaic technical field provides a kind of photovoltaic module, to solve the problem of yellowing easily produced and affecting information reading of label between glass panel and cell piece packaged in photovoltaic module after long time use.For this purpose, the photovoltaic module of the utility model includes cell piece, back adhesive film and back plate which are sequentially laminated, label is packaged between cell piece and back adhesive film, label is completely covered by cell piece, the information of photovoltaic module is recorded on the side of label towards back adhesive film;Back adhesive film and back plate are transparent structure at least the part of label opposite to label. Such setting, due to the obstruction of cell piece, avoid the situation that label is directly irradiated by sunlight for a long time, and label is packaged between cell piece and back adhesive film, avoid the situation that label is in contact with air for a long time, thereby avoid the situation that label is easily aged and yellowed by long-term sunlight direct irradiation and contact with air, ensure the information readability of label after long time use.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and specifically provides a photovoltaic module. Background Technology

[0002] The label attached to photovoltaic (PV) modules is a crucial part for identifying product information, providing essential reference information for users, installers, and maintenance personnel. Typically, PV module labels are affixed to the front or side of the module's frame, or to the outer surface of the backsheet. However, during transport and installation, these labels are easily worn away, making it impossible for users, installers, and maintenance personnel to access the product information.

[0003] To prevent label wear, in the improved photovoltaic modules, the labels are affixed to the busbar between the glass panel and the solar cells and are encapsulated between them. This improved photovoltaic module avoids label wear during transport and installation. However, after prolonged use and exposure to sunlight, the labels are prone to yellowing, which can affect the readability of the information on the labels.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problem, namely, the problem that the label encapsulated between the glass panel and the cell of the photovoltaic module is prone to yellowing after long-term use, which affects the readability of information.

[0006] This utility model provides a photovoltaic module, which includes solar cells, a backing film, and a backsheet stacked in sequence. A label is encapsulated between the solar cells and the backing film. The label is completely covered by the solar cells. The side of the label facing the backing film records information about the photovoltaic module. At least the portions of the backing film and the backsheet facing the label are transparent.

[0007] In the preferred embodiment of the photovoltaic module described above, the back adhesive film is a non-transparent adhesive film, the back sheet is transparent glass, and the back adhesive film has a first opening in the area facing the label to cover the label.

[0008] In the preferred embodiment of the photovoltaic module described above, a first transparent plate with the same outline dimensions as the first opening is provided inside the first opening.

[0009] In the preferred embodiment of the photovoltaic module described above, the thickness of the first transparent plate is the same as the thickness of the back adhesive film.

[0010] In the preferred technical solution of the photovoltaic module described above, the first transparent plate is a transparent film.

[0011] In the preferred embodiment of the photovoltaic module described above, the length of the first opening is greater than or equal to the length of the label and the difference between the two is not greater than 30mm, and the width of the first opening is greater than or equal to the width of the label and the difference between the two is not greater than 30mm.

[0012] In the preferred embodiment of the photovoltaic module described above, the label is affixed to the back of the solar cell.

[0013] In the preferred embodiment of the photovoltaic module described above, a busbar is provided on the back of the solar cell, and the label is affixed to the side of the busbar facing the back adhesive film.

[0014] In the preferred embodiment of the photovoltaic module described above, the back film is a transparent film, the back sheet is a non-transparent back sheet, and the back sheet has a second opening in the area facing the label to cover the label. A second transparent plate with the same outline size as the second opening is disposed in the second opening.

[0015] In the preferred technical solution of the photovoltaic module described above, the back film is a transparent film and the back sheet is a transparent back sheet.

[0016] When the above technical solution is adopted, the photovoltaic module includes solar cells, back film and back sheet arranged in sequence. A label is sealed between the solar cells and the back film. The label is completely covered by the solar cells. The side of the label facing the back film records the information of the photovoltaic module. At least the part of the back film and the back sheet facing the label is transparent.

[0017] This design, during use, prevents the label from being exposed to direct sunlight for extended periods due to the shading of the solar cells. Furthermore, the label is sealed between the solar cell and the backing film, isolating it from air and preventing prolonged exposure to air, thus avoiding the aging and yellowing that can occur with prolonged direct sunlight and air contact. This ensures the readability of the label information even after long-term use. At least the portion of the backing film and backsheet facing the label is transparent, allowing users, installers, and maintenance personnel to read the information recorded on the label through this transparent structure from the back of the photovoltaic module.

[0018] Preferably, the back adhesive film is a non-transparent adhesive film, the back plate is transparent glass, and the back adhesive film has a first opening in the area facing the label to cover the label.

[0019] This setup ensures that the front of the photovoltaic module maintains a good overall appearance for single-sided modules, while allowing users, installers, and maintenance personnel to read the information recorded on the labels from the back of the photovoltaic module.

[0020] Preferably, a first transparent plate with the same outline dimensions as the first opening is provided inside the first opening.

[0021] This setup reduces the risk of the adhesive film on the back melting and flowing, thus covering the label and affecting the readability of the label information during photovoltaic module lamination.

[0022] Preferably, the thickness of the first transparent plate is the same as the thickness of the back adhesive film.

[0023] This design allows the first transparent panel to fit as closely as possible to the label and the transparent glass serving as the backing, reducing the impact of the gap between the first transparent panel and the label and the transparent glass serving as the backing on the reading of the label information.

[0024] Preferably, the first transparent plate is a transparent adhesive film.

[0025] With this setup, after the photovoltaic module is laminated, the transparent film fills the first opening and adheres completely to the label and the transparent glass serving as the backing, thus eliminating the gap between the first transparent panel and the label and the transparent glass serving as the backing, ensuring good readability of the label information.

[0026] Preferably, the length of the first opening is greater than or equal to the length of the label and the difference between the two is no greater than 30mm, and the width of the first opening is greater than or equal to the width of the label and the difference between the two is no greater than 30mm.

[0027] With this setup, the risk of the back film melting and flowing and covering the label, thus affecting the readability of the label information, can be further reduced during the lamination of photovoltaic modules.

[0028] The label is encapsulated between the battery cell and the back adhesive film; specifically, the label can be affixed to the back of the battery cell.

[0029] Preferably, a busbar is provided on the back of the battery cell, and a label is affixed to the side of the busbar facing the back adhesive film.

[0030] With this configuration, the busbar is positioned on the back of the solar cell. Compared to placing the busbar on the front, this reduces the amount of sunlight it blocks, thus increasing the area of ​​the solar cell that receives sunlight and improving power generation efficiency. The label is affixed to the side of the busbar facing the adhesive film on the back. Compared to affixing the label to the back of the solar cell, this avoids the possibility of the solar cell being squeezed and prone to microcracks during label application.

[0031] Preferably, the backing film is a transparent film, and the back panel is a transparent back panel.

[0032] With this configuration, photovoltaic modules can be set up as bifacial modules, which generate more electricity than single-sided modules without changing the footprint. Attached Figure Description

[0033] The preferred embodiments of this utility model will now be described with reference to the accompanying drawings, in which:

[0034] Figure 1 This is a partial cross-sectional view of the photovoltaic module in the first embodiment of this utility model at the location of the label;

[0035] Figure 2 This is a partial cross-sectional view of the photovoltaic module at the location of the label, according to the second embodiment of this utility model;

[0036] Figure 3 This is a partial cross-sectional view of the photovoltaic module in the third embodiment of this utility model at the location of the label;

[0037] Figure 4 This is a partial cross-sectional view of the photovoltaic module at the location of the label, according to the fourth embodiment of this utility model;

[0038] Figure 5 This is a partial cross-sectional view of the photovoltaic module at the location of the label, according to the fifth embodiment of this utility model;

[0039] Figure 6 This is a partial cross-sectional view of the photovoltaic module at the location of the label, according to the sixth embodiment of this utility model;

[0040] Figure 7 This is a partial cross-sectional view of the photovoltaic module at the location of the label in the seventh embodiment of this utility model;

[0041] Figure 8 This is a partial cross-sectional view of the photovoltaic module in the eighth embodiment of this utility model at the location of the label.

[0042] List of reference numerals in the attached diagram:

[0043] 1. Panel; 2. Front adhesive film; 3. Battery cell; 4. Back adhesive film; 41. First opening; 42. First transparent panel; 5. Back panel; 51. Second opening; 52. Second transparent panel; 6. Solder strip; 7. Label; 8. Busbar; 9. Insulating strip. Detailed Implementation

[0044] First, those skilled in the art should understand that the embodiments described below are merely for explaining the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.

[0045] It should be noted that in the description of the utility model, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh", and "eighth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Based on the problem mentioned in the background art that the label encapsulated between the glass panel and the solar cell of the photovoltaic module is prone to yellowing after long-term use, which affects the reading of information, this utility model provides a photovoltaic module. The photovoltaic module includes solar cells, back film and back sheet arranged in sequence. A label is encapsulated between the solar cell and the back film. The label is completely covered by the solar cell. The side of the label facing the back film records the information of the photovoltaic module. At least the part of the back film and the back sheet facing the label is transparent.

[0048] This design, during use, prevents the label from being exposed to direct sunlight for extended periods due to the shading of the solar cells. Furthermore, the label is sealed between the solar cell and the backing film, isolating it from air and preventing prolonged exposure to air, thus avoiding the aging and yellowing that can occur with prolonged direct sunlight and air contact. This ensures the readability of the label information even after long-term use. At least the portion of the backing film and backsheet facing the label is transparent, allowing users, installers, and maintenance personnel to read the information recorded on the label through this transparent structure from the back of the photovoltaic module.

[0049] The following is combined Figures 1 to 4 This invention introduces the photovoltaic module of this utility model. Among other things,

[0050] Figure 1 This is a partial cross-sectional view of the photovoltaic module in the first embodiment of this utility model at the location of the label;

[0051] Figure 2 This is a partial cross-sectional view of the photovoltaic module at the location of the label, according to the second embodiment of this utility model;

[0052] Figure 3 This is a partial cross-sectional view of the photovoltaic module in the third embodiment of this utility model at the location of the label;

[0053] Figure 4This is a partial cross-sectional view of the photovoltaic module at the location of the label, according to the fourth embodiment of this utility model;

[0054] Figure 5 This is a partial cross-sectional view of the photovoltaic module at the location of the label, according to the fifth embodiment of this utility model;

[0055] Figure 6 This is a partial cross-sectional view of the photovoltaic module at the location of the label, according to the sixth embodiment of this utility model;

[0056] Figure 7 This is a partial cross-sectional view of the photovoltaic module at the location of the label in the seventh embodiment of this utility model;

[0057] Figure 8 This is a partial cross-sectional view of the photovoltaic module in the eighth embodiment of this utility model at the location of the label.

[0058] In the first embodiment of this utility model, such as Figure 1 As shown, the photovoltaic module includes a panel 1, a front encapsulating film 2, solar cells 3, a back encapsulating film 4, and a backsheet 5, stacked sequentially from top to bottom. Adjacent solar cells 3 are on the front (i.e., Figure 1 The upper surface of the middle cell 3) and the back surface (i.e. Figure 1 The lower surfaces of the solar cells 3 are welded together using solder ribbons 6. A label 7 is encapsulated between the solar cell 3 and the back film 4. The label 7 is completely covered by the solar cell 3 and is affixed to the back of the solar cell 3. The side of the label 7 facing the back film 4 records information about the photovoltaic module. At least the portions of the back film 4 and the backsheet 5 directly opposite the label 7 are transparent. Specifically, the photovoltaic module is a bifacial module, with both the front panel 1 and the backsheet 5 being transparent glass, and both the front film 2 and the back film 4 being transparent films.

[0059] Because the backsheet 5 is transparent glass and the back film 4 is transparent adhesive film, users, installers, and maintenance personnel can read the information recorded on the label 7 through the backsheet 5 and the back film 4 from the back of the photovoltaic module. Since the label 7 is encapsulated between the solar cell 3 and the back film 4, and is completely covered by the solar cell 3, it avoids contact with air and direct sunlight, thus preventing the label 7 from aging and yellowing due to prolonged exposure to sunlight and air, ensuring the readability of the information on the label 7 after long-term use.

[0060] In the second embodiment of this utility model, such as Figure 2 As shown, the photovoltaic module includes a panel 1, a front encapsulating film 2, solar cells 3, a back encapsulating film 4, and a backsheet 5, stacked sequentially from top to bottom. Adjacent solar cells 3 are on the front (i.e., Figure 2 The upper surface of the middle cell 3) and the back surface (i.e. Figure 2The lower surfaces of the solar cells 3 are welded together using solder ribbons 6. A label 7 is encapsulated between the solar cell 3 and the back film 4. The label 7 is completely covered by the solar cell 3 and is affixed to the back of the solar cell 3. Information about the photovoltaic module is recorded on the side of the label 7 facing the back film 4. At least the portions of the back film 4 and the backsheet 5 directly opposite the label 7 are transparent. Specifically, the photovoltaic module is a single-sided module, with both the front panel 1 and the backsheet 5 being transparent glass, the front film 2 being transparent, and the back film 4 being non-transparent. The back film 4 has a first opening 41 covering the label 7 in the area facing it.

[0061] Because the back film 4 is non-transparent, the front of the photovoltaic module maintains a clean and unified appearance. Since the back film 4 has a first opening 41 covering the label 7 in the area facing it, and the back panel 5 is transparent glass, users, installers, and maintenance personnel can read the information recorded on the label 7 from the back of the photovoltaic module through the back panel 5 and the first opening 41. Because the label 7 is encapsulated between the solar cell 3 and the back film 4, and is completely covered by the solar cell 3, the label 7 is protected from contact with air and direct sunlight. This prevents the label 7 from aging and yellowing due to prolonged exposure to sunlight and air, ensuring the readability of the information on the label 7 even after long-term use.

[0062] In the third embodiment of this utility model, such as Figure 3 As shown, the photovoltaic module includes a panel 1, a front encapsulating film 2, solar cells 3, a back encapsulating film 4, and a backsheet 5, stacked sequentially from top to bottom. Adjacent solar cells 3 are on the front (i.e., Figure 3 The upper surface of the middle cell 3) and the back surface (i.e. Figure 3 The lower surfaces of the solar cells 3 are welded together using welding ribbons 6. A label 7 is encapsulated between the solar cell 3 and the back film 4. The label 7 is completely covered by the solar cell 3 and is affixed to the back of the solar cell 3. Information about the photovoltaic module is recorded on the side of the label 7 facing the back film 4. At least the portions of the back film 4 and the back sheet 5 directly opposite the label 7 are transparent. Specifically, the photovoltaic module is a single-sided module, with both the front panel 1 and the back sheet 5 being transparent glass, the front film 2 being transparent, and the back film 4 being non-transparent. The back film 4 has a first opening 41 covering the label 7 in the area facing it. A first transparent plate 42 with the same outline dimensions as the first opening 41 is also provided within the first opening 41. It is understood that the first transparent plate 42 can be a polyethylene transparent plate, a transparent glass plate, or a transparent plate made of other materials.

[0063] By setting a first transparent plate 42 with the same outline size as the first opening 41 inside the first opening 41, the risk of the back adhesive film 4 melting and flowing and covering the label 7, thus affecting the reading of the information on the label 7, can be reduced during the lamination of the photovoltaic module.

[0064] In the fourth embodiment of this utility model, such as Figure 4 As shown, the photovoltaic module includes a panel 1, a front encapsulating film 2, solar cells 3, a back encapsulating film 4, and a backsheet 5, stacked sequentially from top to bottom. A label 7 is sealed between the solar cell 3 and the back encapsulating film 4, completely covering the solar cell 3. The label 7 is affixed to the back of the solar cell 3, and the side of the label 7 facing the back encapsulating film 4 records information about the photovoltaic module. At least the portions of the back encapsulating film 4 and the backsheet 5 facing the label 7 are transparent. Specifically, the photovoltaic module is a back-contact single-sided module. The panel 1 and the backsheet 5 are both transparent glass, the front encapsulating film 2 is transparent, and the back encapsulating film 4 is non-transparent. Adjacent solar cells 3 are welded together by solder ribbons 6 on the back. A busbar 8 is provided on the back of the solar cell 3, and the busbar 8 is separated from the solder ribbons 6 on the back of the solar cell by an insulating strip 9. The electrodes of the solar cell 3 are connected to the busbar 8 via portions of the solder ribbons 6. The label 7 is affixed to the side of the busbar 8 facing the back encapsulating film 4. The back adhesive film 4 has a first opening 41 covering the label 7 in the area facing the label 7, and a first transparent plate 42 with the same outline size as the first opening 41 is also provided inside the first opening 41.

[0065] The photovoltaic module is a back-contact single-sided module, meaning that the solder ribbon 6 and busbar 8 are both located on the back side of the solar cell 3. This reduces the shading of sunlight by the solder ribbon 6 and busbar 8, thereby increasing the area of ​​the solar cell 3 that receives sunlight and improving power generation efficiency. The label 7 is affixed to the side of the busbar 8 facing the back adhesive film 4. Compared to affixing the label 7 to the back of the solar cell 3, this avoids the possibility of microcracks easily occurring in the solar cell 3 due to compression during the label 7 affixing process.

[0066] Based on the third and fourth embodiments described above, preferably, the thickness of the first transparent plate 42 is the same as the thickness of the back adhesive film 4.

[0067] The thickness of the first transparent plate 42 is set to be the same as the thickness of the back adhesive film 4, so that the first transparent plate 42 can fit as closely as possible to the label 7 and the back plate 5, reducing the impact of the gap between the first transparent plate 42 and the label 7 and the back plate 5 on the reading of information on the label 7.

[0068] Preferably, the first transparent plate 42 is a transparent adhesive film.

[0069] The first transparent panel 42 is configured as a transparent film. After the photovoltaic module is laminated, the transparent film fills the first opening 41 and is completely adhered to the label 7 and the back plate 5, completely eliminating the gap between the first transparent panel 42 and the label 7 and the back plate 5, ensuring good information readability of the label 7.

[0070] It should be noted that the materials of transparent films include, but are not limited to, EVA, POE, EPE, PET, etc.

[0071] Based on the second to fourth embodiments described above, preferably, the length of the first opening 41 is greater than or equal to the length of the label 7 and the difference between the two is not greater than 30mm, and the width of the first opening 41 is greater than or equal to the width of the label 7 and the difference between the two is not greater than 30mm.

[0072] With this setup, the risk of the back adhesive film 4 melting and flowing and covering the label 7 during photovoltaic module lamination can be further reduced, especially when the first transparent plate 42 is not set inside the first opening 41.

[0073] In the fifth embodiment of this utility model, as Figure 5 As shown, the photovoltaic module includes a panel 1, a front encapsulating film 2, solar cells 3, a back encapsulating film 4, and a backsheet 5, stacked sequentially from top to bottom. Adjacent solar cells 3 are on the front (i.e., Figure 5 The upper surface of the middle cell 3) and the back surface (i.e. Figure 5 The lower surfaces of the solar cells 3 are welded together using welding ribbons 6. A label 7 is encapsulated between the solar cell 3 and the back film 4, completely covering the solar cell 3. The label 7 is affixed to the back of the solar cell 3, and the side of the label 7 facing the back film 4 records information about the photovoltaic module. At least the portions of the back film 4 and the backplate 5 directly opposite the label 7 are transparent. Specifically, the photovoltaic module is a single-sided module, with the front panel 1 being transparent glass, the front film 2 being transparent, the back film 4 being transparent, and the backplate 5 being non-transparent. The backplate 5 has a second opening 51 covering the label 7 in the area facing it, and a second transparent plate 52 with the same outline dimensions as the second opening 51 is disposed within the second opening 51. Preferably, the thickness of the second transparent plate 52 is the same as the thickness of the backplate 5.

[0074] In the sixth embodiment of this utility model, such as Figure 6As shown, the photovoltaic module includes a panel 1, a front encapsulating film 2, solar cells 3, a back encapsulating film 4, and a backsheet 5, stacked sequentially from top to bottom. A label 7 is sealed between the solar cell 3 and the back encapsulating film 4, completely covering the solar cell 3. The label 7 is affixed to the back of the solar cell 3, and the side of the label 7 facing the back encapsulating film 4 records information about the photovoltaic module. At least the portions of the back encapsulating film 4 and the backsheet 5 facing the label 7 are transparent. Specifically, the photovoltaic module is a back-contact single-sided module. The panel 1 is transparent glass, the front encapsulating film 2 is transparent, the back encapsulating film 4 is transparent, and the backsheet 5 is a non-transparent backsheet. Adjacent solar cells 3 are welded together by solder ribbons 6 on the back. A busbar 8 is provided on the back of the solar cell 3, and the busbar 8 is separated from the solder ribbons 6 on the back of the solar cell by an insulating strip 9. The electrodes of the solar cell 3 are connected to the busbar 8 via portions of the solder ribbons 6. The label 7 is affixed to the side of the busbar 8 facing the back encapsulating film 4. The back panel 5 has a second opening 51 in the area facing the label 7, which covers the label 7. A second transparent plate 52 with the same outline dimensions as the second opening 51 is also provided inside the second opening 51. Preferably, the thickness of the second transparent plate 52 is the same as the thickness of the back panel 5.

[0075] In the seventh embodiment of this utility model, such as Figure 7 As shown, the photovoltaic module includes a panel 1, a front encapsulating film 2, solar cells 3, a back encapsulating film 4, and a backsheet 5, stacked sequentially from top to bottom. Adjacent solar cells 3 are on the front (i.e., Figure 7 The upper surface of the middle cell 3) and the back surface (i.e. Figure 7 The lower surfaces of the solar cells 3 are welded together using welding ribbons 6. A label 7 is encapsulated between the solar cell 3 and the back film 4. The label 7 is completely covered by the solar cell 3 and is affixed to the back of the solar cell 3. The side of the label 7 facing the back film 4 records information about the photovoltaic module. At least the portions of the back film 4 and the backplate 5 facing the label 7 are transparent. Specifically, the photovoltaic module is a single-sided module, the panel 1 is transparent glass, the front film 2 is transparent, the back film 4 is non-transparent, and the backplate 5 is non-transparent. The back film 4 has a first opening 41 covering the label 7 in the area facing the label 7. A first transparent plate 42 with the same outline size as the first opening 41 is also provided inside the first opening 41. The backplate 5 has a second opening 51 covering the label 7 in the area facing the label 7. A second transparent plate 52 with the same outline size as the second opening 51 is provided inside the second opening 51. The thickness of the first transparent plate 42 is the same as the thickness of the back adhesive film 4, and the thickness of the second transparent plate 52 is the same as the thickness of the back plate 5.

[0076] In the eighth embodiment of this utility model, such as Figure 8As shown, the photovoltaic module includes a panel 1, a front encapsulating film 2, solar cells 3, a back encapsulating film 4, and a backsheet 5, stacked sequentially from top to bottom. A label 7 is sealed between the solar cell 3 and the back encapsulating film 4, completely covering the solar cell 3. The label 7 is affixed to the back of the solar cell 3, and the side of the label 7 facing the back encapsulating film 4 records information about the photovoltaic module. At least the portions of the back encapsulating film 4 and the backsheet 5 facing the label 7 are transparent. Specifically, the photovoltaic module is a back-contact single-sided module. The panel 1 is transparent glass, the front encapsulating film 2 is transparent, the back encapsulating film 4 is opaque, and the backsheet 5 is opaque. Adjacent solar cells 3 are welded together by solder ribbons 6 on the back. A busbar 8 is provided on the back of the solar cell 3, and the busbar 8 is separated from the solder ribbons 6 on the back of the solar cell by an insulating strip 9. The electrodes of the solar cell 3 are connected to the busbar 8 via portions of the solder ribbons 6. The label 7 is affixed to the side of the busbar 8 facing the back encapsulating film 4. The backing film 4 has a first opening 41 covering the label 7 in the area facing the label 7. A first transparent plate 42 with the same outline dimensions as the first opening 41 is also provided within the first opening 41. The backing plate 5 has a second opening 51 covering the label 7 in the area facing the label 7. A second transparent plate 52 with the same outline dimensions as the second opening 51 is also provided within the second opening 51. The thickness of the first transparent plate 42 is the same as the thickness of the backing film 4, and the thickness of the second transparent plate 52 is the same as the thickness of the backing plate 5.

[0077] It should also be noted that, for the fourth, sixth and eighth embodiments, the label 7 can be affixed to the busbar 8 near the edge of the photovoltaic module, or it can be affixed to the busbar 8 located in the middle of the photovoltaic module.

[0078] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A photovoltaic module, characterized in that, The photovoltaic module includes a solar cell (3), a backing film (4), and a backsheet (5) stacked in sequence. A label (7) is encapsulated between the solar cell (3) and the backing film (4). The label (7) is completely covered by the solar cell (3). The side of the label (7) facing the backing film (4) records information about the photovoltaic module. At least the portions of the backing film (4) and the backsheet (5) facing the label (7) are transparent.

2. The photovoltaic module according to claim 1, characterized in that, The back adhesive film (4) is a non-transparent adhesive film, the back plate (5) is transparent glass, and the back adhesive film (4) has a first opening (41) covering the label (7) in the area facing the label (7).

3. The photovoltaic module according to claim 2, characterized in that, A first transparent plate (42) with the same outline size as the first opening (41) is provided inside the first opening (41).

4. The photovoltaic module according to claim 3, characterized in that, The thickness of the first transparent plate (42) is the same as the thickness of the back adhesive film (4).

5. The photovoltaic module according to claim 4, characterized in that, The first transparent plate (42) is a transparent adhesive film.

6. The photovoltaic module according to any one of claims 2 to 5, characterized in that, The length of the first opening (41) is greater than or equal to the length of the label (7) and the difference between the two is not greater than 30mm, and the width of the first opening (41) is greater than or equal to the width of the label (7) and the difference between the two is not greater than 30mm.

7. The photovoltaic module according to any one of claims 2 to 5, characterized in that, The label (7) is affixed to the back of the battery cell (3).

8. The photovoltaic module according to any one of claims 2 to 5, characterized in that, A busbar (8) is provided on the back of the battery cell (3), and the label (7) is affixed to the side of the busbar (8) facing the back adhesive film (4).

9. The photovoltaic module according to claim 1, characterized in that, The back adhesive film (4) is a transparent adhesive film, and the back plate (5) is a non-transparent back plate. The back plate (5) has a second opening (51) covering the label (7) in the area facing the label (7). A second transparent plate (52) with the same outline size as the second opening (51) is provided in the second opening (51).

10. The photovoltaic module according to claim 1, characterized in that, The back adhesive film (4) is a transparent adhesive film, and the back plate (5) is a transparent back plate.

Images