Method for processing curved photovoltaic tiles and curved photovoltaic tiles

Abstract

The application provides a processing method of a curved photovoltaic tile and the curved photovoltaic tile. The processing method of the curved photovoltaic tile comprises the following steps: sequentially stacking a first adhesive film layer, a solar cell and a first protective layer; performing one-time lamination on the first adhesive film layer, the solar cell and the first protective layer to form a planar laminated assembly; sequentially stacking a rigid curved second protective layer, a second adhesive film layer and the laminated assembly; and performing two-time lamination on the second protective layer, the second adhesive film layer and the laminated assembly to form the curved photovoltaic tile. The curved photovoltaic tile is processed by using the above processing method, so that the curved photovoltaic tile is processed and formed by the two-time lamination method. Compared with the one-time lamination processing method, the bending resistance of the solar cell is improved, the probability of hidden cracking of the solar cell is reduced, and the stability and reliability of the curved photovoltaic tile are improved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic equipment technology, and more specifically, to a processing method for curved photovoltaic tiles and curved photovoltaic tiles. Background Technology

[0002] In existing bifacial photovoltaic tiles, the solar cells are usually made of low-strength silicon crystal cells, which makes the cells easy to break. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] Therefore, the first objective of this invention is to provide a method for processing curved photovoltaic tiles.

[0005] The second objective of this invention is to propose a curved photovoltaic tile.

[0006] To achieve at least one of the above objectives, according to a first aspect of the present invention, a method for processing curved photovoltaic tiles is provided. The method includes: sequentially stacking a first adhesive film layer, a solar cell, and a first protective layer; performing a first lamination on the first adhesive film layer, the solar cell, and the first protective layer to form a planar laminated assembly; sequentially stacking a rigid curved second protective layer, a second adhesive film layer, and the laminated assembly; and performing a second lamination on the second protective layer, the second adhesive film layer, and the laminated assembly to form a curved photovoltaic tile.

[0007] The processing method for curved photovoltaic tiles proposed in this application is used to process curved photovoltaic tiles through a two-stage lamination process. First, a first adhesive film layer, a solar cell, and a first protective layer are sequentially stacked. Then, the first adhesive film layer, solar cell, and first protective layer are laminated once to form a planar laminated assembly. Specifically, the first adhesive film layer, solar cell, and first protective layer can be laminated once using a first laminator. During the first lamination process, the first adhesive film layer softens upon heating and adheres to the solar cell, a portion of the first protective layer softens upon heating, and the solar cell is embedded into the first protective layer under pressure. The solar cell and the first protective layer are then cured together to improve the strength of the solar cell.

[0008] Furthermore, the rigid curved second protective layer, the second adhesive film layer, and the laminating assembly are sequentially stacked, and then a second lamination is performed on the second protective layer, the second adhesive film layer, and the laminating assembly. During the second lamination process, the second adhesive film layer softens due to heat and bonds to the first adhesive film layer in the laminating assembly. The second protective layer is bonded to the laminating assembly through the second adhesive film layer to form a curved photovoltaic tile.

[0009] By using the above processing method to process curved photovoltaic tiles, the curved photovoltaic tiles can be formed by secondary lamination. Compared with the single lamination processing method, this improves the bending resistance of solar cells, reduces the probability of microcracks in solar cells, and enhances the stability and reliability of curved photovoltaic tiles.

[0010] In some technical solutions, optionally, the first protective layer includes a rigid protective layer and an adhesive layer. The first adhesive film layer, the solar cell, and the first protective layer are laminated once. Specifically, the solar cell is pressed into the adhesive layer so that the solar cell and the adhesive layer are cured together. The first adhesive film layer is then bonded to the adhesive layer.

[0011] In this technical solution, the processing method for curved photovoltaic tiles is further defined. The first protective layer includes a rigid protective layer and an adhesive layer. The specific steps for laminating the first adhesive film layer, the solar cell, and the first protective layer are as follows: First, the solar cell is pressed into the adhesive layer to cure the solar cell and the adhesive layer into one piece. Then, the first adhesive film layer is bonded to the adhesive layer.

[0012] Specifically, the adhesive layer is a soft structure at room temperature, facilitating the embedding of solar cells. After the solar cell is embedded in the adhesive layer under pressure, the adhesive layer can be cured by heating, thus solidifying the solar cell and the adhesive layer into a single unit. This adhesive layer enhances the strength of the solar cell. The adhesive layer is located on the side of the rigid protective layer facing the first adhesive film layer. After the adhesive layer is heated and cured, it bonds to the first adhesive film layer, thereby enabling the first adhesive film layer to bond the first protective layer and the second protective layer into a whole.

[0013] By setting a rigid protective layer and an adhesive layer in the first protective layer, the solar cell can be embedded in the adhesive layer, so that the adhesive layer and the solar cell are solidified into one, thereby improving the strength of the solar cell. At the same time, the rigid protective layer can further protect the solar cell, thereby improving the stability and reliability of the curved photovoltaic tile.

[0014] In some technical solutions, the second protective layer, the second adhesive film layer, and the laminating assembly of the rigid curved surface are optionally stacked in sequence. Specifically, the second protective layer and the second adhesive film layer are stacked; the first adhesive film layer in the laminating assembly faces the second adhesive film layer, and the laminating assembly is placed on top of the second adhesive film layer.

[0015] In this technical solution, the step of sequentially stacking the rigid curved second protective layer, the second adhesive film layer, and the laminating assembly is specifically defined. First, the second protective layer and the second adhesive film layer are stacked. Then, the first adhesive film layer of the laminating assembly faces the second adhesive film layer, and the laminating assembly is placed on top of the second adhesive film layer. In this way, after secondary lamination, the second protective layer can be bonded to the first adhesive film layer in the laminating assembly through the second adhesive film layer, making the first protective layer, the solar cell, the first adhesive film layer, the second adhesive film layer, and the second protective layer a unified whole to form a curved photovoltaic tile. The first laminator can be a planar laminator.

[0016] In some technical solutions, optionally, the curved photovoltaic tile undergoes a first lamination process using a first laminator to laminate the first encapsulant layer, solar cell, and first protective layer. Specifically, this involves: controlling the heating device of the first laminator to heat the interior of the first laminator to a temperature range of 145°C to 150°C; controlling the vacuum device of the first laminator to perform a vacuuming operation within the first laminator, with the vacuum device operating for a duration ranging from 360s to 720s; and controlling the first laminator to apply a first pressure to the first encapsulant layer, solar cell, and first protective layer for a first duration. The lamination process involves: a first pressure ranging from 20 kPa to 30 kPa and a first duration ranging from 30 s to 60 s; controlling the first laminator to apply a second pressure to the first adhesive film layer, the solar cell, and the first protective layer for a second duration, with the second pressure ranging from 40 kPa to 50 kPa and the second duration ranging from 30 s to 60 s; and controlling the first laminator to apply a third pressure to the first adhesive film layer, the solar cell, and the first protective layer for a third duration, with the third pressure ranging from 95 kPa to 100 kPa and the third duration ranging from 30 min to 40 min.

[0017] In this technical solution, the processing method for curved photovoltaic tiles is further defined. The curved photovoltaic tiles undergo a first lamination process using a first laminator. This first lamination of the first encapsulant layer, solar cells, and first protective layer is as follows: First, the heating device of the first laminator is controlled to heat the interior of the first laminator to a temperature range of 145°C to 150°C. Then, the vacuum device of the first laminator is controlled to perform a vacuum operation within the first laminator, with the vacuum device operating for a duration ranging from 360s to 720s. Subsequently, different pressures are used to laminate the first encapsulant layer, solar cells, and first protective layer for different durations.

[0018] Specifically, firstly, the first laminator is controlled to laminate the first encapsulant layer, the solar cell, and the first protective layer at a first pressure for a first duration, with the first pressure ranging from 20 kPa to 30 kPa and the first duration ranging from 30 s to 60 s. Then, the first laminator is controlled to laminate the first encapsulant layer, the solar cell, and the first protective layer at a second pressure for a second duration, with the second pressure ranging from 40 kPa to 50 kPa and the second duration ranging from 30 s to 60 s. Finally, the first laminator is controlled to laminate the first encapsulant layer, the solar cell, and the first protective layer at a third pressure for a third duration, with the third pressure ranging from 95 kPa to 100 kPa and the third duration ranging from 30 min to 40 min.

[0019] By applying different pressures and laminating the first adhesive film layer, the solar cell, and the first protective layer for different durations, the solar cell can be embedded in the first protective layer, and the first protective layer and the solar cell can be cured into one piece, thereby improving the strength of the solar cell.

[0020] In some technical solutions, optionally, the curved photovoltaic tile also undergoes secondary lamination using a second laminator to perform secondary lamination on the second protective layer, the second encapsulant layer, and the laminating assembly. Specifically, this involves: controlling the vacuum device of the second laminator to perform a vacuum operation inside the second laminator, with the vacuum device's operation time ranging from 10 to 12 minutes; controlling the heating device of the second laminator to heat the inside of the second laminator to a temperature range of 80°C to 90°C; controlling the second laminator to perform a fourth lamination of the second protective layer, the second encapsulant layer, and the laminating assembly at a fourth pressure for a fourth duration, with the fourth pressure ranging from 99 kPa to 100 kPa and the fourth duration ranging from 5 to 10 minutes; and controlling the second laminator... The heating device heats the second laminator to a temperature range of 100°C to 110°C; the second laminator is controlled to laminate the second protective layer, the second adhesive layer, and the laminating assembly at a fourth pressure for a fourth duration; the heating device of the second laminator is controlled to heat the second laminator to a temperature range of 120°C to 130°C; the second laminator is controlled to laminate the second protective layer, the second adhesive layer, and the laminating assembly at a fourth pressure for a fourth duration; the heating device of the second laminator is controlled to heat the second laminator to a temperature range of 150°C to 160°C; the second laminator is controlled to laminate the second protective layer, the second adhesive layer, and the laminating assembly at a fourth pressure for a fifth duration, the fifth duration ranging from 40 min to 60 min.

[0021] In this technical solution, the processing method for curved photovoltaic tiles is further defined. The curved photovoltaic tiles also undergo secondary lamination using a second laminator. This secondary lamination of the second protective layer, second encapsulant layer, and laminating assembly is as follows: First, the vacuum device of the second laminator is controlled to perform a vacuum operation inside the second laminator, with the vacuum device running for a duration between 10 and 12 minutes. Then, at different temperatures and pressures, the laminating assembly, second encapsulant layer, and second protective layer are laminated for different durations. The second laminator can be a silicone bag laminator.

[0022] Specifically, firstly, the heating device of the second laminator is controlled to heat the interior of the second laminator to a temperature range of 80°C to 90°C. Then, the second laminator is controlled to apply a fourth pressure (99 kPa to 100 kPa) and a fourth time (5 min to 10 min) to the second protective layer, second adhesive layer, and laminating assembly. Next, the heating device of the second laminator is controlled to heat the interior of the second laminator to a temperature range of 100°C to 110°C. Then, the second laminator is controlled to apply a fourth pressure and a fourth time to the second protective layer, second adhesive layer, and laminating assembly. Finally, the heating device of the second laminator is controlled to heat the interior of the second laminator to a temperature range of 120°C to 130°C. Then, the second laminator is controlled to apply a fourth pressure and a fourth time to the second protective layer, second adhesive layer, and laminating assembly. Subsequently, the heating device controlling the second laminator heats the interior of the second laminator to a temperature range of 150°C to 160°C, and controls the second laminator to perform a fifth lamination of the second protective layer, the second adhesive film layer, and the lamination assembly at a fourth pressure for a fifth duration, which ranges from 40 minutes to 60 minutes.

[0023] By laminating the laminated module, the second encapsulant layer, and the second protective layer at different temperatures and under different pressures for different durations, the laminated module, the second encapsulant layer, and the second protective layer can be integrated into a single unit to form a curved photovoltaic tile.

[0024] A second aspect of the invention also provides a curved photovoltaic tile, comprising: a solar cell for converting light energy into electrical energy, the solar cell having a backlight side and a light-receiving side that are opposite to each other; a first protective layer, a portion of which is located on the backlight side of the solar cell; a first encapsulating film layer located on the light-receiving side of the solar cell; a second protective layer located on the side of the first encapsulating film layer away from the solar cell; and a second encapsulating film layer located between the second protective layer and the first encapsulating film layer.

[0025] The curved photovoltaic tile proposed in this application includes a solar cell, a first protective layer, a second protective layer, a first adhesive film layer, and a second adhesive film layer. The solar cell is used to receive light and convert light energy into electrical energy. The first and second protective layers are used to protect the solar cell. The first and second adhesive film layers are used to bond the first and second protective layers together, so that the solar cell, the first protective layer, and the second protective layer are integrated into a whole.

[0026] Specifically, a solar cell has a backlight side and a light-receiving side that are opposite to each other. Both the light-receiving and backlight sides can receive light, enabling the solar cell to generate electricity from both sides. The solar cell can be a crystalline silicon cell or a thin-film cell.

[0027] Furthermore, the first protective layer is light-transmitting, allowing light to pass through and reach the backlight side, enabling the backlight side to receive light. The solar cell is embedded within the first protective layer, with a portion of the first protective layer located on the backlight side of the solar cell. The solar cell and the first protective layer are integrally formed, thereby enhancing the strength of the solar cell and reducing the probability of microcracks in the solar cell.

[0028] Furthermore, a first adhesive film layer is located on the light-receiving side of the solar cell, and a second adhesive film layer is located between the second protective layer and the first adhesive film layer. The second protective layer is located on the side of the first adhesive film layer away from the solar cell. The second protective layer is bonded to the first protective layer through the first and second adhesive film layers, thus providing further protection for the solar cell. Specifically, the light-receiving side of the solar cell faces the second protective layer, which is translucent, allowing light to pass through and reach the light-receiving side, enabling it to receive light. This achieves the technical effect of bifacial power generation in the solar cell. The second protective layer is made of tempered glass.

[0029] Furthermore, during the processing of curved photovoltaic tiles, the first protective layer, solar cell, and first adhesive film layer are first laminated. The solar cell is pressed into the first protective layer, and the first adhesive film layer is bonded to the first protective layer. The first protective layer, solar cell, and first adhesive film layer are first laminated into a whole to form a laminated assembly. Then, the second adhesive film layer is placed between the second protective layer and the laminated assembly, and a second lamination is performed, so that the second protective layer is bonded to the laminated assembly through the second adhesive film layer. Thus, the first protective layer, solar cell, first adhesive film layer, second adhesive film layer, and second protective layer become a whole to form a curved photovoltaic tile.

[0030] The materials of the first and second adhesive film layers can be EVA (ethylene vinyl acetate polymer), POE (polyethylene), PVB (polyvinyl butyral), or silicone, etc.

[0031] By setting a first adhesive film layer and a second adhesive film layer in curved photovoltaic tiles, the curved photovoltaic tiles can be processed through a two-stage lamination process. Compared with the traditional one-stage lamination process, this improves the bending resistance of the solar cells, reduces the probability of microcracks in the solar cells, and enhances the stability and reliability of the curved photovoltaic tiles.

[0032] The curved photovoltaic tile according to the present invention may also have the following distinguishing technical features:

[0033] In some technical solutions, optionally, the first protective layer includes: a rigid protective layer; an adhesive layer located on the side of the rigid protective layer facing the first adhesive film layer, the solar cell being embedded in the adhesive layer, and the first adhesive film layer being bonded to the adhesive layer.

[0034] In this technical solution, the structure of the first protective layer is defined. The first protective layer includes a rigid protective layer and an adhesive layer, wherein the rigid protective layer and the adhesive layer are stacked, and the solar cell is embedded in the adhesive layer. Specifically, the adhesive layer is a soft structure at room temperature, which facilitates the embedding of the solar cell. After the solar cell is embedded in the adhesive layer under pressure, the adhesive layer can be cured by heating, thereby solidifying the solar cell and the adhesive layer into one unit, and thus improving the strength of the solar cell through the adhesive layer. The adhesive layer is located on the side of the rigid protective layer facing the first adhesive film layer. After the adhesive layer is heated and cured, the adhesive layer and the first adhesive film layer adhere to each other, thereby enabling the first adhesive film layer to bond the first protective layer and the second protective layer into a whole.

[0035] Both the adhesive layer and the rigid protective layer are translucent, allowing the solar cells to receive light properly. The thickness of the adhesive layer ranges from 0.2 mm to 0.5 mm, and the thickness of the rigid protective layer ranges from 0.2 mm to 0.7 mm. The adhesive layer is made of resin, and the rigid protective layer is made of PET (polyethylene terephthalate).

[0036] By setting a rigid protective layer and an adhesive layer in the first protective layer, the solar cell can be embedded in the adhesive layer, so that the adhesive layer and the solar cell are solidified into one, thereby improving the strength of the solar cell. At the same time, the rigid protective layer can further protect the solar cell, thereby improving the stability and reliability of the curved photovoltaic tile.

[0037] In some technical solutions, the adhesive layer may optionally be made of resin.

[0038] In this technical solution, the adhesive layer is defined. Specifically, the adhesive layer is made of resin, which is soft at room temperature and cures upon heating. The cured resin has high strength. When laminating the solar cell to the first protective layer, the solar cell is first pressed into the adhesive layer under pressure, and then the adhesive layer is cured by heating, so that the solar cell and the adhesive layer are integrated. The cured adhesive layer has high strength, thereby improving the strength of the solar cell and reducing the probability of microcracks in the solar cell.

[0039] In some technical solutions, optionally, the surfaces of the solar cell, the first protective layer, and the second protective layer are all curved surfaces.

[0040] In this technical solution, the solar cell, the first protective layer, and the second protective layer are further defined. Specifically, the surfaces of the solar cell, the first protective layer, and the second protective layer are all curved, thus making the curved photovoltaic tile a curved product. This not only improves the aesthetics of the curved photovoltaic tile but also allows it to be used in a wider variety of photovoltaic devices.

[0041] In some technical solutions, optionally, the first and second adhesive film layers are light-transmitting.

[0042] In this technical solution, the first and second adhesive film layers are defined. Specifically, both the first and second adhesive film layers are light-transmitting, allowing light to pass through them sequentially to reach the solar cell, thus enabling the solar cell to generate electricity from both sides.

[0043] By setting the first and second adhesive film layers to be light-transmitting, light can pass through the first and second adhesive film layers, enabling the solar cell to generate electricity from both sides.

[0044] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0045] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0046] Figure 1 One of the exploded views of a curved photovoltaic tile according to an embodiment of the present invention is shown;

[0047] Figure 2 The second exploded view shows an embodiment of the curved photovoltaic tile of the present invention;

[0048] Figure 3 A schematic diagram of the structure of the first protective layer according to an embodiment of the present invention is shown;

[0049] Figure 4 This diagram illustrates the structure of the first protective layer, the solar cell, and the first encapsulant layer before primary lamination, according to an embodiment of the present invention.

[0050] Figure 5 This diagram illustrates the structure of a first protective layer, a solar cell, and a first encapsulant layer after a single lamination, according to an embodiment of the present invention.

[0051] Figure 6 This diagram illustrates the structure of the second protective layer, the second adhesive film layer, and the lamination assembly before secondary lamination, according to an embodiment of the present invention.

[0052] Figure 7 One of the flowcharts illustrating a method for processing curved photovoltaic tiles according to an embodiment of the present invention is shown.

[0053] Figure 8 A second schematic flowchart illustrating a method for processing curved photovoltaic tiles according to an embodiment of the present invention is shown.

[0054] Figure 9 The third schematic flowchart illustrates a method for processing curved photovoltaic tiles according to an embodiment of the present invention.

[0055] Figure 10 The fourth schematic flowchart illustrates a method for processing curved photovoltaic tiles according to an embodiment of the present invention.

[0056] Figure 11 The fifth illustration shows a flowchart of a method for processing curved photovoltaic tiles according to an embodiment of the present invention.

[0057] in, Figures 1 to 6 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0058] 100 Curved photovoltaic tile, 110 Solar cell, 111 Backlight side, 112 Light-receiving side, 120 First protective layer, 121 Rigid protective layer, 122 Adhesive layer, 130 Second protective layer, 141 First encapsulant layer, 142 Second encapsulant layer, 150 Laminated module. Detailed Implementation

[0059] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0060] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0061] The following reference Figures 1 to 11 The present invention describes a method for processing curved photovoltaic tiles and a curved photovoltaic tile 100 provided according to some embodiments thereof.

[0062] In one embodiment according to this application, such as Figure 7 As shown in the figure, one of the flowcharts illustrates a method for processing curved photovoltaic tiles according to an embodiment of the present invention. The processing method includes the following steps S102 to S108:

[0063] S102: The first adhesive film layer, the solar cell and the first protective layer are stacked sequentially;

[0064] S104: The first adhesive film layer, the solar cell and the first protective layer are laminated once to form a planar laminated assembly;

[0065] S106: The second protective layer, the second adhesive film layer, and the lamination assembly of the rigid curved surface are stacked sequentially;

[0066] S108: Perform secondary lamination on the second protective layer, the second encapsulant layer, and the laminated module to form a curved photovoltaic tile.

[0067] The processing method for curved photovoltaic tiles proposed in this application is used to process curved photovoltaic tiles through a two-stage lamination process. First, a first adhesive film layer, a solar cell, and a first protective layer are sequentially stacked. Then, the first adhesive film layer, solar cell, and first protective layer are laminated once to form a planar laminated assembly. Specifically, the first adhesive film layer, solar cell, and first protective layer can be laminated once using a first laminator. During the first lamination process, the first adhesive film layer softens upon heating and adheres to the solar cell, a portion of the first protective layer softens upon heating, and the solar cell is embedded into the first protective layer under pressure. The solar cell and the first protective layer are then cured together to improve the strength of the solar cell.

[0068] Furthermore, the rigid curved second protective layer, the second adhesive film layer, and the laminating assembly are sequentially stacked, and then a second lamination is performed on the second protective layer, the second adhesive film layer, and the laminating assembly. During the second lamination process, the second adhesive film layer softens due to heat and bonds to the first adhesive film layer in the laminating assembly. The second protective layer is bonded to the laminating assembly through the second adhesive film layer to form a curved photovoltaic tile.

[0069] By using the above processing method to process curved photovoltaic tiles, the curved photovoltaic tiles can be formed by secondary lamination. Compared with the single lamination processing method, this improves the bending resistance of solar cells, reduces the probability of microcracks in solar cells, and enhances the stability and reliability of curved photovoltaic tiles.

[0070] In one embodiment according to this application, such as Figure 3 As shown, the first protective layer 120 includes a rigid protective layer 121 and an adhesive layer 122, such as Figure 8 As shown in the figure, a second schematic flowchart of the processing method for curved photovoltaic tiles according to an embodiment of the present invention is illustrated. This processing method includes the following steps S202 to S210:

[0071] S202: The first adhesive film layer, the solar cell and the first protective layer are stacked sequentially;

[0072] S204: Press the solar cell into the adhesive layer so that the solar cell and the adhesive layer are cured together;

[0073] S206: Adhere the first adhesive film layer to the adhesive layer;

[0074] S208: The second protective layer, the second adhesive film layer, and the lamination assembly of the rigid curved surface are stacked sequentially;

[0075] S210: Perform secondary lamination on the second protective layer, the second encapsulant layer, and the laminated module to form a curved photovoltaic tile.

[0076] In this embodiment, the processing method for curved photovoltaic tiles is further defined. The first protective layer includes a rigid protective layer and an adhesive layer. The specific steps of laminating the first adhesive film layer, the solar cell, and the first protective layer are as follows: First, the solar cell is pressed into the adhesive layer to cure the solar cell and the adhesive layer into one piece. Then, the first adhesive film layer is bonded to the adhesive layer.

[0077] Specifically, the adhesive layer is a soft structure at room temperature, facilitating the embedding of solar cells. After the solar cell is embedded in the adhesive layer under pressure, the adhesive layer can be cured by heating, thus solidifying the solar cell and the adhesive layer into a single unit. This adhesive layer enhances the strength of the solar cell. The adhesive layer is located on the side of the rigid protective layer facing the first adhesive film layer. After the adhesive layer is heated and cured, it bonds to the first adhesive film layer, thereby enabling the first adhesive film layer to bond the first protective layer and the second protective layer into a whole.

[0078] By setting a rigid protective layer and an adhesive layer in the first protective layer, the solar cell can be embedded in the adhesive layer, so that the adhesive layer and the solar cell are solidified into one, thereby improving the strength of the solar cell. At the same time, the rigid protective layer can further protect the solar cell, thereby improving the stability and reliability of the curved photovoltaic tile.

[0079] In one embodiment according to this application, such as Figure 9 As shown in the figure, a third schematic flowchart of the processing method for curved photovoltaic tiles according to an embodiment of the present invention is illustrated. This processing method includes the following steps S302 to S312:

[0080] S302: The first adhesive film layer, the solar cell and the first protective layer are stacked sequentially;

[0081] S304: Press the solar cell into the adhesive layer so that the solar cell and the adhesive layer are cured together;

[0082] S306: The first adhesive film layer is bonded to the adhesive layer to form a laminated assembly;

[0083] S308: The second protective layer and the second adhesive film layer are stacked together;

[0084] S310: Orient the first adhesive layer in the laminating assembly toward the second adhesive layer, and place the laminating assembly on top of the second adhesive layer;

[0085] S312: Perform secondary lamination on the second protective layer, the second encapsulant layer, and the laminated module to form a curved photovoltaic tile.

[0086] In this embodiment, the step of sequentially stacking the rigid curved second protective layer, the second adhesive film layer, and the laminating assembly is specifically defined. First, the second protective layer and the second adhesive film layer are stacked. Then, the first adhesive film layer of the laminating assembly faces the second adhesive film layer, and the laminating assembly is placed on top of the second adhesive film layer. In this way, after secondary lamination, the second protective layer can be bonded to the first adhesive film layer in the laminating assembly through the second adhesive film layer, making the first protective layer, the solar cell, the first adhesive film layer, the second adhesive film layer, and the second protective layer a unified whole to form a curved photovoltaic tile. The first laminator can be a planar laminator.

[0087] In one embodiment according to this application, the curved photovoltaic tile is laminated once using a first laminator, such as... Figure 10 As shown in the figure, a fourth schematic flowchart of the processing method for curved photovoltaic tiles according to an embodiment of the present invention is illustrated. The step of laminating the first adhesive film layer, the solar cell, and the first protective layer includes the following steps S402 to S410:

[0088] S402: The heating device of the first laminator is controlled to heat the interior of the first laminator to a temperature range of 145°C to 150°C;

[0089] S404: Control the vacuum device of the first laminator to perform vacuuming operation inside the first laminator. The operating time of the vacuum device of the first laminator is within the range of 360s to 720s.

[0090] S406: Control the first laminator to laminate the first adhesive layer, the solar cell and the first protective layer with a first pressure for a first duration, wherein the first pressure ranges from 20 kPa to 30 kPa and the first duration ranges from 30 s to 60 s;

[0091] S408: Control the first laminator to laminate the first adhesive layer, the solar cell and the first protective layer with a second pressure for a second duration, wherein the second pressure ranges from 40 kPa to 50 kPa and the second duration ranges from 30 s to 60 s;

[0092] S410: Control the first laminator to laminate the first adhesive layer, the solar cell and the first protective layer with a third pressure for a third duration, the third pressure being in the range of 95kPa to 100kPa and the third duration being in the range of 30min to 40min.

[0093] In this embodiment, the processing method for the curved photovoltaic tile is further defined. The curved photovoltaic tile undergoes a first lamination process using a first laminator to laminate the first encapsulant layer, solar cell, and first protective layer. Specifically, this step is as follows: First, the heating device of the first laminator is controlled to heat the interior of the first laminator to a temperature range of 145°C to 150°C. Then, the vacuum device of the first laminator is controlled to perform a vacuum operation within the first laminator, with the vacuum device operating for a duration ranging from 360s to 720s. Subsequently, different pressures are used to laminate the first encapsulant layer, solar cell, and first protective layer for different durations.

[0094] Specifically, firstly, the first laminator is controlled to laminate the first encapsulant layer, the solar cell, and the first protective layer at a first pressure for a first duration, with the first pressure ranging from 20 kPa to 30 kPa and the first duration ranging from 30 s to 60 s. Then, the first laminator is controlled to laminate the first encapsulant layer, the solar cell, and the first protective layer at a second pressure for a second duration, with the second pressure ranging from 40 kPa to 50 kPa and the second duration ranging from 30 s to 60 s. Finally, the first laminator is controlled to laminate the first encapsulant layer, the solar cell, and the first protective layer at a third pressure for a third duration, with the third pressure ranging from 95 kPa to 100 kPa and the third duration ranging from 30 min to 40 min.

[0095] By applying different pressures and laminating the first adhesive film layer, the solar cell, and the first protective layer for different durations, the solar cell can be embedded in the first protective layer, and the first protective layer and the solar cell can be cured into one piece, thereby improving the strength of the solar cell.

[0096] In one embodiment according to this application, the curved photovoltaic tile is further laminated a second time using a second laminator, such as... Figure 11 As shown in the figure, this is the fifth flowchart illustrating the processing method of the curved photovoltaic tile according to an embodiment of the present invention. The step of performing secondary lamination on the second protective layer, the second adhesive film layer, and the laminated assembly includes the following steps S502 to S518:

[0097] S502: Control the vacuum device of the second laminator to perform vacuuming operation inside the second laminator. The running time of the vacuum device of the second laminator is in the range of 10 min to 12 min.

[0098] S504: The heating device of the second laminator is controlled to heat the interior of the second laminator to a temperature range of 80°C to 90°C;

[0099] S506: Control the second laminator to laminate the second protective layer, the second adhesive layer and the lamination assembly at a fourth pressure for a fourth duration, wherein the fourth pressure ranges from 99 kPa to 100 kPa and the fourth duration ranges from 5 min to 10 min.

[0100] S508: Controls the heating device of the second laminator to heat the interior of the second laminator to a temperature range of 100°C to 110°C;

[0101] S510: Control the second laminator to laminate the second protective layer, the second adhesive layer, and the lamination assembly at a fourth pressure for a fourth duration;

[0102] S512: Controls the heating device of the second laminator to heat the interior of the second laminator to a temperature range of 120°C to 130°C;

[0103] S514: Control the second laminator to laminate the second protective layer, the second adhesive layer and the lamination assembly at a fourth pressure for a fourth duration;

[0104] S516: The heating device of the second laminator is controlled to heat the interior of the second laminator to a temperature range of 150°C to 160°C;

[0105] S518: Control the second laminator to laminate the second protective layer, the second adhesive layer and the laminating assembly at a fourth pressure for a fifth duration, the fifth duration being 40 min to 60 min.

[0106] In this embodiment, the processing method for the curved photovoltaic tile is further defined. The curved photovoltaic tile undergoes secondary lamination using a second laminator. This secondary lamination of the second protective layer, the second adhesive film layer, and the laminating assembly is specifically as follows: First, the vacuum device of the second laminator is controlled to perform a vacuum operation inside the second laminator, with the vacuum device running for a duration between 10 and 12 minutes. Then, the laminating assembly, the second adhesive film layer, and the second protective layer are laminated for different durations at different temperatures and pressures. The second laminator can be a silicone bag laminator.

[0107] Specifically, firstly, the heating device of the second laminator is controlled to heat the interior of the second laminator to a temperature range of 80°C to 90°C. Then, the second laminator is controlled to apply a fourth pressure (99 kPa to 100 kPa) and a fourth time (5 min to 10 min) to the second protective layer, second adhesive layer, and laminating assembly. Next, the heating device of the second laminator is controlled to heat the interior of the second laminator to a temperature range of 100°C to 110°C. Then, the second laminator is controlled to apply a fourth pressure and a fourth time to the second protective layer, second adhesive layer, and laminating assembly. Finally, the heating device of the second laminator is controlled to heat the interior of the second laminator to a temperature range of 120°C to 130°C. Then, the second laminator is controlled to apply a fourth pressure and a fourth time to the second protective layer, second adhesive layer, and laminating assembly. Subsequently, the heating device controlling the second laminator heats the interior of the second laminator to a temperature range of 150°C to 160°C, and controls the second laminator to perform a fifth lamination of the second protective layer, the second adhesive film layer, and the lamination assembly at a fourth pressure for a fifth duration, which ranges from 40 minutes to 60 minutes.

[0108] By laminating the laminated module, the second encapsulant layer, and the second protective layer at different temperatures and under different pressures for different durations, the laminated module, the second encapsulant layer, and the second protective layer can be integrated into a single unit to form a curved photovoltaic tile.

[0109] In one embodiment according to this application, such as Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the present invention proposes a curved photovoltaic tile 100, comprising: a solar cell 110 for converting light energy into electrical energy, the solar cell 110 having a backlight side 111 and a light-receiving side 112 that are opposite to each other; a first protective layer 120, a portion of which is located on the backlight side 111 of the solar cell 110; a first encapsulating film layer 141 located on the light-receiving side 112 of the solar cell 110; a second protective layer 130 located on the side of the first encapsulating film layer 141 away from the solar cell 110; and a second encapsulating film layer 142 located between the second protective layer 130 and the first encapsulating film layer 141.

[0110] The curved photovoltaic tile 100 proposed in this application includes a solar cell 110, a first protective layer 120, a second protective layer 130, a first adhesive film layer 141, and a second adhesive film layer 142. The solar cell 110 is used to receive light and convert light energy into electrical energy. The first protective layer 120 and the second protective layer 130 are used to protect the solar cell 110. The first adhesive film layer 141 and the second adhesive film layer 142 are used to bond the first protective layer 120 and the second protective layer 130 together, so that the solar cell 110, the first protective layer 120, and the second protective layer 130 are integrated into a whole.

[0111] Specifically, the solar cell 110 has a backlight side 111 and a light-receiving side 112 that are opposite to each other. Both the light-receiving side 112 and the backlight side 111 can receive light, so that the solar cell 110 can generate electricity from both sides. The solar cell 110 can be a crystalline silicon cell or a thin-film cell.

[0112] Furthermore, the first protective layer 120 is light-transmitting, allowing light to pass through and reach the backlight side 111, enabling the backlight side 111 to receive light. The solar cell 110 is embedded within the first protective layer 120, with a portion of the first protective layer 120 located on the backlight side 111 of the solar cell 110. The solar cell 110 and the first protective layer 120 are integrally formed, thereby enhancing the strength of the solar cell 110 through the first protective layer 120 and reducing the probability of microcracks in the solar cell 110.

[0113] Furthermore, the first adhesive film layer 141 is located on the light-receiving side 112 of the solar cell 110, and the second adhesive film layer 142 is located between the second protective layer 130 and the first adhesive film layer 141. The second protective layer 130 is located on the side of the first adhesive film layer 141 away from the solar cell 110. The second protective layer 130 is bonded to the first protective layer 120 through the first adhesive film layer 141 and the second adhesive film layer 142, thereby providing further protection for the solar cell 110. Specifically, the light-receiving side 112 of the solar cell 110 faces the second protective layer 130, which is translucent, allowing light to pass through and reach the light-receiving side 112, enabling the light-receiving side 112 to receive light. This achieves the technical effect of bifacial power generation for the solar cell 110. The material of the second protective layer 130 is tempered glass.

[0114] Furthermore, in processing the curved photovoltaic tile 100, the first protective layer 120, the solar cell 110, and the first adhesive film layer 141 are first laminated. The solar cell 110 is pressed into the first protective layer 120, and the first adhesive film layer 141 is bonded to the first protective layer 120. The first protective layer 120, the solar cell 110, and the first adhesive film layer 141 are first laminated into a whole to form a laminated assembly 150. Then, the second adhesive film layer 142 is placed between the second protective layer 130 and the laminated assembly 150, and a second lamination is performed, so that the second protective layer 130 is bonded to the laminated assembly 150 through the second adhesive film layer 142. Thus, the first protective layer 120, the solar cell 110, the first adhesive film layer 141, the second adhesive film layer 142, and the second protective layer 130 become a whole to form the curved photovoltaic tile 100.

[0115] The materials of the first adhesive film layer 141 and the second adhesive film layer 142 can be EVA, POE, PVB or silicone, etc.

[0116] By setting a first adhesive film layer 141 and a second adhesive film layer 142 in the curved photovoltaic tile 100, the curved photovoltaic tile 100 can be processed by a secondary lamination process. Compared with the traditional single lamination process, this improves the bending resistance of the solar cell 110, reduces the probability of microcracks in the solar cell 110, and enhances the stability and reliability of the curved photovoltaic tile 100.

[0117] In some embodiments, optionally, such as Figure 3 and Figure 5 As shown, the first protective layer 120 includes: a rigid protective layer 121; an adhesive layer 122 located on the side of the rigid protective layer 121 facing the first adhesive film layer 141, the solar cell 110 is embedded in the adhesive layer 122, and the first adhesive film layer 141 is bonded to the adhesive layer 122.

[0118] In this embodiment, the structure of the first protective layer 120 is defined. The first protective layer 120 includes a rigid protective layer 121 and an adhesive layer 122, wherein the rigid protective layer 121 and the adhesive layer 122 are stacked, and the solar cell 110 is embedded in the adhesive layer 122. Specifically, the adhesive layer 122 is a soft structure at room temperature, which facilitates the embedding of the solar cell 110. After the solar cell 110 is embedded in the adhesive layer 122 under pressure, the adhesive layer 122 can be cured by heating, thereby solidifying the solar cell 110 and the adhesive layer 122 into one, and thus improving the strength of the solar cell 110 through the adhesive layer 122. The adhesive layer 122 is located on the side of the rigid protective layer 121 facing the first adhesive film layer 141. After the adhesive layer 122 is heated and cured, the adhesive layer 122 and the first adhesive film layer 141 are bonded to each other, so that the first adhesive film layer 141 can bond the first protective layer 120 and the second protective layer 130 into a whole.

[0119] Both the adhesive layer 122 and the rigid protective layer 121 are light-transmitting, allowing the solar cell 110 to receive light normally. The thickness of the adhesive layer 122 ranges from 0.2 mm to 0.5 mm, and the thickness of the rigid protective layer 121 ranges from 0.2 mm to 0.7 mm. The adhesive layer 122 is made of resin, and the rigid protective layer 121 is made of PET.

[0120] By providing a rigid protective layer 121 and an adhesive layer 122 in the first protective layer 120, the solar cell 110 can be embedded in the adhesive layer 122, so that the adhesive layer 122 and the solar cell 110 are solidified together to improve the strength of the solar cell 110. Furthermore, the rigid protective layer 121 can provide further protection for the solar cell 110, thereby improving the stability and reliability of the curved photovoltaic tile 100.

[0121] In some embodiments, the adhesive layer 122 may be made of resin.

[0122] In this embodiment, the adhesive layer 122 is defined. Specifically, the adhesive layer 122 is made of resin, which is soft at room temperature and cures upon heating. The cured resin has high strength. When laminating the solar cell 110 with the first protective layer 120, the solar cell 110 is first pressed into the adhesive layer 122 by pressure, and then the adhesive layer 122 is cured by heating, so that the solar cell 110 and the adhesive layer 122 are cured into one piece. The cured adhesive layer 122 has high strength, thereby improving the strength of the solar cell 110 and reducing the probability of microcracks in the solar cell 110.

[0123] In some embodiments, the surfaces of the solar cell 110, the first protective layer 120, and the second protective layer 130 are optionally curved.

[0124] In this embodiment, the solar cell 110, the first protective layer 120, and the second protective layer 130 are further defined. Specifically, the surfaces of the solar cell 110, the first protective layer 120, and the second protective layer 130 are all curved, thus making the curved photovoltaic tile 100 a curved product. This not only improves the aesthetics of the curved photovoltaic tile 100 but also makes it suitable for more types of photovoltaic equipment.

[0125] In some embodiments, the first adhesive film layer 141 and the second adhesive film layer 142 may optionally be light-transmitting.

[0126] In this embodiment, the first adhesive film layer 141 and the second adhesive film layer 142 are defined. Specifically, both the first adhesive film layer 141 and the second adhesive film layer 142 are light-transmitting, and light can pass through the first adhesive film layer 141 and the second adhesive film layer 142 in sequence to reach the solar cell 110, so that the solar cell 110 can generate electricity from both sides.

[0127] By setting the first adhesive film layer 141 and the second adhesive film layer 142 to be light-transmitting, light can pass through the first adhesive film layer 141 and the second adhesive film layer 142, enabling the solar cell 110 to generate electricity from both sides.

[0128] In one possible embodiment, such as Figure 1 and Figure 2 As shown, the curved crystalline silicon photovoltaic product (i.e., curved photovoltaic tile 100) is composed of a composite transparent backsheet (i.e., the first protective layer 120), a power generation unit (i.e., solar cell 110), a first encapsulating film (i.e., the first encapsulating film layer 141), a second encapsulating film (i.e., the second encapsulating film layer 142), and curved tempered glass (i.e., the second protective layer 130) stacked sequentially, and the overall encapsulation is achieved through a two-step lamination process. The composite transparent backsheet has the functions of adhesion and protection. The first and second encapsulating films can be materials such as EVA, POE, PVB, or silicone. The power generation unit is a crystalline silicon solar cell or a thin-film solar cell.

[0129] like Figure 3 As shown, the composite transparent backsheet mainly consists of two parts: a transparent resin adhesive layer (i.e., adhesive layer 122) and a transparent PET layer (i.e., rigid protective layer 121). The main component of the transparent resin adhesive layer is resin-based adhesive material, with a thickness ranging from 0.2mm to 0.5mm. The transparent resin adhesive layer is soft at room temperature and cures upon heating, thus achieving its adhesive function. The main material of the transparent PET layer is PET, with a thickness ranging from 0.2mm to 0.7mm, and the transparent PET layer provides protective functionality.

[0130] The power generation unit is a crystalline silicon solar cell or a thin-film solar cell. Due to their thinness and rigidity, crystalline silicon and thin-film solar cells are prone to microcracks when used in curved photovoltaic products. The transparent resin adhesive layer of the transparent composite backsheet is made of a cured resin material, which has higher strength after curing compared to traditional encapsulation films. During the lamination process of the power generation unit and the composite transparent backsheet, the resin material of the transparent adhesive layer softens under the combined effects of temperature and pressure, embedding the solar cell into the transparent resin adhesive layer. After the transparent resin adhesive layer cures, the solar cell and the composite transparent backsheet are bonded together as a whole, which better protects the solar cell, improves the bending resistance of the power generation unit, and effectively reduces the probability of microcracks during bending deformation.

[0131] During the first lamination process, since the transparent resin adhesive layer of the transparent composite backplate cannot completely cover the front of the power generation unit (i.e., the light-receiving side 112), a first encapsulating film needs to be applied to the front of the power generation unit to encapsulate and protect it. The first lamination process is as follows: First, the encapsulating film, power generation unit, and composite transparent backplate are laid out from bottom to top. After laying, a conventional planar laminator is used for lamination. The planar laminator has an upper chamber and a lower chamber, with a pressure difference between them. The pressure in the lower chamber is -100 kPa, and the pressure in the upper chamber is shown in Table 1. The encapsulating film, power generation unit, and composite transparent backplate are laminated under the pressure difference between the upper and lower chambers. The parameters for the first lamination are shown in Table 1. The first lamination includes a first-stage lamination, a second-stage lamination, and a third-stage lamination. The first lamination structure and process are illustrated below. Figure 4 and Figure 5 As shown.

[0132] After the first lamination is completed, a second lamination is performed. To achieve a good filling and bonding effect, a second encapsulating film needs to be applied to the curved tempered glass during the second lamination process. The application sequence is as follows: first laminate (i.e., lamination assembly), second encapsulating film, curved tempered glass, etc. Figure 6 The layers are stacked in sequence and then placed into a silicone bag laminator for lamination. The silicone bag lamination parameters are shown in Table 2. The secondary lamination includes single-stage lamination, double-stage lamination, triple-stage lamination, and quadruple-stage lamination. Through the two-step lamination process, the anti-microcrack and bifacial power generation functions of crystalline silicon curved photovoltaic products can be achieved, thereby improving product yield.

[0133] Table 1

[0134]

[0135] Table 2

[0136]

[0137]

[0138] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0139] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0140] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for processing curved photovoltaic tiles, characterized in that, The processing method of the curved photovoltaic tile includes: The first adhesive film layer, the solar cell, and the first protective layer are stacked sequentially. The first adhesive film layer, the solar cell, and the first protective layer are laminated once to form a planar laminated assembly; The second protective layer, the second adhesive film layer, and the lamination assembly of the rigid curved surface are stacked sequentially. The second protective layer, the second adhesive film layer, and the laminated assembly are subjected to secondary lamination to form the curved photovoltaic tile; The first protective layer includes a rigid protective layer and an adhesive layer. The specific steps of laminating the first adhesive film layer, the solar cell, and the first protective layer are as follows: The solar cell is pressed into the adhesive layer so that the solar cell and the adhesive layer are cured together. The first adhesive film layer is bonded to the adhesive layer; The adhesive layer is made of resin, and the rigid protective layer is made of polyester resin. Specifically, the second protective layer, the second adhesive film layer, and the lamination assembly are sequentially stacked as follows: The second protective layer and the second adhesive film layer are stacked together; The first adhesive film layer in the laminating assembly is oriented toward the second adhesive film layer, and the laminating assembly is placed on top of the second adhesive film layer.

2. The processing method for curved photovoltaic tiles according to claim 1, characterized in that, The curved photovoltaic tile undergoes a first lamination process using a first laminator. Specifically, this first lamination of the first adhesive film layer, the solar cell, and the first protective layer involves: The heating device controlling the first laminator heats the interior of the first laminator to a temperature range of 145°C to 150°C; The vacuum pump of the first laminator is controlled to perform a vacuuming operation inside the first laminator. The operating time of the vacuum pump of the first laminator is within the range of 360s to 720s. The first laminator is controlled to laminate the first adhesive film layer, the solar cell and the first protective layer at a first pressure for a first duration, wherein the first pressure ranges from 20 kPa to 30 kPa and the first duration ranges from 30 s to 60 s. The first laminator is controlled to laminate the first adhesive film layer, the solar cell and the first protective layer with a second pressure for a second duration, wherein the second pressure ranges from 40 kPa to 50 kPa and the second duration ranges from 30 s to 60 s. The first laminator is controlled to laminate the first adhesive film layer, the solar cell and the first protective layer at a third pressure for a third duration, wherein the third pressure ranges from 95 kPa to 100 kPa and the third duration ranges from 30 min to 40 min.

3. The processing method for curved photovoltaic tiles according to claim 1, characterized in that, The curved photovoltaic tile is further laminated a second time using a second laminator. Specifically, this secondary lamination of the second protective layer, the second adhesive film layer, and the laminated assembly involves: The vacuum device of the second laminator is controlled to perform a vacuuming operation inside the second laminator. The operation time of the vacuum device of the second laminator is in the range of 10 minutes to 12 minutes. The heating device controlling the second laminator heats the interior of the second laminator to a temperature range of 80°C to 90°C; The second laminator is controlled to laminate the second protective layer, the second adhesive film layer and the lamination assembly at a fourth pressure for a fourth duration, wherein the fourth pressure ranges from 99 kPa to 100 kPa and the fourth duration ranges from 5 min to 10 min. The heating device controlling the second laminator heats the interior of the second laminator to a temperature range of 100°C to 110°C; The second laminator is controlled to laminate the second protective layer, the second adhesive film layer, and the lamination assembly at the fourth pressure for the fourth duration; The heating device controlling the second laminator heats the interior of the second laminator to a temperature range of 120°C to 130°C; The second laminator is controlled to laminate the second protective layer, the second adhesive film layer, and the lamination assembly at the fourth pressure for the fourth duration; The heating device controlling the second laminator heats the interior of the second laminator to a temperature range of 150°C to 160°C; The second laminator is controlled to laminate the second protective layer, the second adhesive film layer and the lamination assembly at the fourth pressure for a fifth duration, the fifth duration being in the range of 40 min to 60 min.

4. A curved photovoltaic tile, characterized in that, The curved photovoltaic tile is prepared by the processing method according to any one of claims 1-3, wherein the curved photovoltaic tile comprises: A solar cell for converting light energy into electrical energy, the solar cell having a backlight side and a light-receiving side that are opposite to each other; A first protective layer, a portion of which is located on the back side of the solar cell; The first adhesive film layer is located on the light-receiving side of the solar cell; A second protective layer is located on the side of the first film layer away from the solar cell. The second adhesive film layer is located between the second protective layer and the first adhesive film layer; The first protective layer includes: Hard protective layer; An adhesive layer is located on the side of the rigid protective layer facing the first adhesive film layer, the solar cell is embedded in the adhesive layer, and the first adhesive film layer is bonded to the adhesive layer; The adhesive layer is made of resin, and the rigid protective layer is made of polyester resin.

5. The curved photovoltaic tile according to claim 4, characterized in that, The surfaces of the solar cell, the first protective layer, and the second protective layer are all curved.

6. The curved photovoltaic tile according to claim 4, characterized in that, Both the first adhesive film layer and the second adhesive film layer are light-transmitting.

Images