Colored photovoltaic tile and method for manufacturing same, packaging tool and photovoltaic building

Abstract

This application discloses a colored photovoltaic tile, its manufacturing method, encapsulation tooling, and photovoltaic building. The manufacturing method of the colored photovoltaic tile includes: providing a back cover plate, a first encapsulating film layer, a battery layer, a second encapsulating film layer, and a front cover plate; the interior of the front cover plate is printed with ink; the laminated structure formed by sequentially stacking the first encapsulating film layer, the battery layer, the second encapsulating film layer, and the back cover plate is heated to a lamination temperature for lamination; the front cover plate is positioned on the side of the first encapsulating film layer away from the back cover plate, and a gap exists between the front cover plate and the first encapsulating film layer; a liquid encapsulating adhesive layer is formed between the front cover plate and the first encapsulating film layer, and heated to a curing temperature for curing; the curing temperature of the encapsulating adhesive layer is less than or equal to the curing temperature of the ink. Since the ink does not contain heavy metals, it is environmentally friendly and can be used in the front cover plate of environmentally friendly colored photovoltaic tiles, meeting the needs for environmental protection, aesthetics, and diversity.

Description

Technical Field

[0001] This application relates to the field of solar cell technology, and more specifically, to a colored photovoltaic tile, its preparation method, packaging tooling, and photovoltaic building. Background Technology

[0002] Colored photovoltaic (PV) products are an innovative type of solar photovoltaic product, often used in specialized settings where they integrate well with the overall building architecture. Traditional PV tiles typically have transparent glass front panels; however, colored PV tiles are more appealing to customers in certain specific applications to better integrate with buildings.

[0003] In related technologies, colored glass is mostly printed with ink. In order to maintain the durability of ink color, the ink contains heavy metal particles and requires high temperature curing. Heavy metal particles have some adverse effects on the environment. Therefore, colored glass containing heavy metals does not meet environmental protection standards. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the related art.

[0005] Therefore, the first aspect of this application is to propose a method for preparing colored photovoltaic tiles.

[0006] The second aspect of this application is to propose a colored photovoltaic tile.

[0007] The third aspect of this application is to propose a packaging fixture.

[0008] The fourth aspect of this application is to propose a photovoltaic building.

[0009] In view of this, according to the first aspect of this application, a method for preparing colored photovoltaic tiles is proposed, comprising:

[0010] It provides a rear cover, a first adhesive layer, a battery layer, a second adhesive layer, and a front cover; the interior of the front cover is printed with ink;

[0011] The laminated structure, which consists of a first adhesive film layer, a battery layer, a second adhesive film layer, and a back cover plate, is heated to the lamination temperature and laminated, so that the first adhesive film layer and the second adhesive film layer melt and then solidify.

[0012] The front cover is positioned on the side of the first adhesive film layer away from the rear cover, and there is a gap between the front cover and the first adhesive film layer;

[0013] A liquid encapsulating adhesive layer is formed between the front cover plate and the first adhesive film layer, and then heated to the curing temperature for curing; the curing temperature of the encapsulating adhesive layer is less than or equal to the curing temperature of the ink.

[0014] In the above technical solution, ink is printed inside the front cover to give it a colored appearance. Simultaneously, a laminate is formed by first laminating a first adhesive film layer, a battery layer, a second adhesive film layer, and a rear cover layer sequentially. Then, an encapsulating adhesive layer with a curing temperature lower than or equal to the ink's curing temperature is used to perform a secondary encapsulation of the laminate and the front cover. This avoids damage to the ink during encapsulation, ensuring the color durability of the front cover and improving the reliability of the colored photovoltaic tiles. Furthermore, low-temperature inks can be used, which are free of heavy metals. Since the ink is free of heavy metals, it is environmentally friendly and its application in the front cover of environmentally friendly colored photovoltaic tiles meets the needs of environmental protection, aesthetics, and diversity.

[0015] In some technical solutions, the curing temperature of the ink is in the range of 100℃ to 120℃. The ink is a low-temperature ink, which can be made free of heavy metals and is environmentally friendly. It can be used in the front cover of environmentally friendly colored photovoltaic tiles, meeting the needs of environmental protection, aesthetics and diversity.

[0016] In some technical solutions, optionally, before heating to the curing temperature for curing, vacuuming is also included.

[0017] Before curing at the curing temperature, a vacuum is first applied, which can significantly reduce the formation of bubbles and improve the quality of colored photovoltaic tiles.

[0018] In some technical solutions, optionally, a stepped heating method is used during the lamination process of heating the laminated structure formed by sequentially stacking the first adhesive layer, the battery layer, the second adhesive layer and the back cover to the lamination temperature.

[0019] In the above technical solution, stepped heating means setting multiple temperature steps during the heating process. The temperature and time of each step can be precisely controlled. This helps to ensure that the laminated structure gradually adapts to the temperature change during the heating process, so that the first and second adhesive film layers can melt better and penetrate into the tiny gaps during the gradual heating process, thereby helping to improve the bonding strength and sealing performance after lamination.

[0020] In some technical solutions, optionally, the process of heating the laminated structure formed by sequentially stacking the first adhesive layer, the battery layer, the second adhesive layer and the back cover to the lamination temperature for lamination specifically includes: sequential first lamination, second lamination, third lamination and fourth lamination; the temperature of the first lamination, second lamination, third lamination and fourth lamination increases step by step.

[0021] By gradually increasing the temperature in stages, the material can adapt to temperature changes, reducing thermal stress caused by sudden temperature changes; multiple laminations help the first and second adhesive layers penetrate the gaps more evenly, forming a stronger bond.

[0022] In the above technical solution, the lamination temperature for the first lamination is 80℃~90℃; the lamination temperature for the second lamination is 100℃~110℃; the lamination temperature for the third lamination is 130℃~140℃; and the lamination temperature for the fourth lamination is 150℃~155℃.

[0023] In some technical solutions, optionally, the first lamination time is 5 min to 10 min; the second lamination time is 5 min to 10 min; the third lamination time is 5 min to 10 min; and the fourth lamination time is 30 min to 40 min.

[0024] For the multi-layer lamination process of the stacked structure, specific time ranges are set for each lamination. This helps to precisely control the lamination process, ensuring that the stacked structure can be heated evenly and form a good bond. It is worth noting that the final lamination, i.e., the fourth lamination, is set with a longer time to ensure that the first and second adhesive film layers are completely cured, forming a stable adhesive structure, thereby helping to improve the durability and reliability of the colored photovoltaic tiles.

[0025] In some technical solutions, the thickness of the gap may optionally be 0.2mm to 0.5mm.

[0026] In some technical solutions, the material of the first adhesive film layer may optionally include EVA, POE or PVB, and / or the material of the second adhesive film layer may include EVA, POE or PVB.

[0027] In some technical solutions, the front cover may optionally be made of tempered glass, and / or the rear cover may optionally be made of tempered glass.

[0028] In practical applications, both the front and rear cover plates are made of tempered glass to achieve double-glass encapsulation, which improves the fire resistance of the colored photovoltaic tiles, makes them more reliable, and enables bi-sided power generation, thus improving the power generation efficiency of the colored photovoltaic tiles.

[0029] According to a second aspect of this application, a colored photovoltaic tile is provided, comprising: a back cover plate; a second adhesive film layer disposed on one side of the back cover plate; a battery layer disposed on the side of the second adhesive film layer opposite to the back cover plate; a first adhesive film layer disposed on the side of the battery layer opposite to the back cover plate; an encapsulating adhesive layer disposed on the side of the first adhesive film layer opposite to the back cover plate; and a front cover plate disposed on the side of the encapsulating adhesive layer opposite to the back cover plate; the interior of the front cover plate is printed with ink; and the curing temperature of the ink is greater than or equal to the curing temperature of the encapsulating adhesive layer.

[0030] In the above technical solution, ink is printed inside the front cover to give the front cover a colorful appearance. The ink does not contain heavy metals and is environmentally friendly. When applied to the front cover of environmentally friendly colored photovoltaic tiles, it can meet the needs of environmental protection, aesthetics and diversity.

[0031] In some technical solutions, the curing temperature of the ink is in the range of 100℃ to 120℃. The ink is a low-temperature ink, which can be made free of heavy metals and is environmentally friendly. It can be used in the front cover of environmentally friendly colored photovoltaic tiles, meeting the needs of environmental protection, aesthetics and diversity.

[0032] According to a third aspect of this application, this application proposes a packaging tooling for use in the method for preparing colored photovoltaic tiles according to the first aspect of this application, or for packaging colored photovoltaic tiles according to the second aspect of this application.

[0033] The packaging fixture includes: a base, on which a first slot and a second slot are provided; and an edge sealing component, on which a third slot and a fourth slot are provided.

[0034] In some technical solutions, optionally, at least one of the first slot, second slot, third slot and fourth slot is made of a soft material.

[0035] The use of flexible materials allows the slots to better adapt to and secure the laminate and front cover, ensuring a smooth encapsulation process. In actual manufacturing, the first, second, third, and fourth slots are all made of flexible material; the widths of the first and third slots are slightly smaller than the thickness of the front cover, and the widths of the second and fourth slots are slightly smaller than the thickness of the laminate. This allows the slots to undergo a certain degree of elastic deformation when the laminate or front cover is inserted, thus securing them more tightly.

[0036] In some technical solutions, optionally, the colored photovoltaic tile has a first side and a second side; the first side and the second side are adjacent; the orientation of the first slot and the second slot is consistent with the orientation of the first side; the orientation of the third slot and the fourth slot is consistent with the orientation of the second side.

[0037] This design ensures that the base and edge sealing components maintain structural consistency with the colored photovoltaic tiles.

[0038] According to a fourth aspect of this application, a photovoltaic building is proposed, comprising colored photovoltaic tiles manufactured using the method for preparing colored photovoltaic tiles as described in the first aspect of this application, and / or colored photovoltaic tiles as described in the second aspect of this application. Thus, the photovoltaic building possesses all the beneficial effects of any of the aforementioned technical solutions, which will not be elaborated further here.

[0039] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0040] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0041] Figure 1 A schematic flowchart of the method for preparing colored photovoltaic tiles according to an embodiment of this application is shown;

[0042] Figure 2 One of the structural schematic diagrams of the colored photovoltaic tile in the embodiments of this application is shown;

[0043] Figure 3 A schematic diagram of the structure of the laminate in an embodiment of this application before lamination is shown;

[0044] Figure 4 A schematic diagram of the structure of the laminated component after lamination in an embodiment of this application is shown;

[0045] Figure 5 A schematic diagram of the packaging fixture in an embodiment of this application is shown;

[0046] Figure 6 One of the structural schematic diagrams of the packaging fixture in the embodiments of this application is shown during use;

[0047] Figure 7 The second schematic diagram shows the structure of the packaging fixture in use in the embodiments of this application.

[0048] in, Figures 2 to 7 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0049] 10 Colored photovoltaic tile; 11 First side; 12 Second side; 13 Laminate; 100 Rear cover; 110 Second encapsulant layer; 120 Battery layer; 130 First encapsulant layer; 140 Encapsulating adhesive layer; 150 Front cover;

[0050] 20 Package fixture; 200 Base; 201 First slot; 202 Second slot; 210 Edge seal; 211 Third slot; 212 Fourth slot. Detailed Implementation

[0051] To better understand the above-mentioned objectives, features, and advantages of this application, the application 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.

[0052] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0053] The following is combined Figures 1 to 7 The present application provides a detailed description of the colored photovoltaic tiles, their preparation methods, packaging fixtures, and photovoltaic buildings provided in this embodiment through specific examples and application scenarios.

[0054] Reference Figures 1 to 4 The embodiments of this application provide a method for preparing colored photovoltaic tiles, including the following steps:

[0055] S102 provides a rear cover, a first adhesive layer, a battery layer, a second adhesive layer, and a front cover; the interior of the front cover is printed with ink.

[0056] S104, the laminated structure formed by the first adhesive film layer, the battery layer, the second adhesive film layer and the back cover plate are heated to the lamination temperature and laminated, so that the first adhesive film layer and the second adhesive film layer melt and then solidify.

[0057] S106, the front cover is disposed on the side of the first adhesive film layer away from the rear cover, and there is a gap between the front cover and the first adhesive film layer;

[0058] S108, a liquid encapsulating adhesive layer is formed between the front cover plate and the first adhesive film layer, and then heated to the curing temperature for curing; the curing temperature of the encapsulating adhesive layer is less than or equal to the curing temperature of the ink.

[0059] In the above embodiment, ink is printed inside the front cover to give the front cover a colored appearance. (Refer to...) Figure 3 and Figure 4 Simultaneously, a laminated structure is first formed by sequentially stacking the first adhesive film layer, the battery layer, the second adhesive film layer, and the back cover plate to create a laminated component. Then, an encapsulating adhesive layer with a curing temperature lower than or equal to the ink curing temperature is used to perform a secondary encapsulation of the laminated component and the front cover plate. This avoids damage to the ink during encapsulation, thus ensuring the durability of the front cover plate's color and improving the reliability of the colored photovoltaic tiles. In this way, low-temperature inks can be used, which are free of heavy metals. Since the ink is free of heavy metals, it is environmentally friendly and can be used in the front cover plates of environmentally friendly colored photovoltaic tiles, meeting the needs of environmental protection, aesthetics, and diversity.

[0060] In actual processing, the gap thickness is 0.2mm to 0.5mm. Furthermore, different colors and appearances can be selected according to actual needs, thereby achieving product diversity and broadening the application range of photovoltaic tiles in different scenarios.

[0061] In some embodiments, the curing temperature of the ink is in the range of 100°C to 120°C. The ink is a low-temperature ink, which is environmentally friendly as it is free of heavy metals. When applied to the front cover of environmentally friendly colored photovoltaic tiles, it meets the needs of environmental protection, aesthetics, and diversity.

[0062] Referring to Table 1, in the above embodiments, the curing temperature of the curing adhesive for the encapsulating layer is 100℃~120℃, and the curing time is 30min~40min.

[0063] It is understood that this application does not impose specific restrictions on the type of curing adhesive used in the encapsulation layer, and any known low-temperature curing adhesive may be used. For example, the curing adhesive is silicone.

[0064] In some embodiments, before heating to the curing temperature for curing, the process further includes: vacuuming.

[0065] Since the encapsulating adhesive layer is liquid, air bubbles are easily formed in the encapsulating adhesive layer due to the presence of air. These bubbles will become defects in the colored photovoltaic tiles after curing, affecting the quality of the colored photovoltaic tiles. Therefore, in the above embodiment, a vacuum is first drawn before heating to the curing temperature for curing, which can significantly reduce the formation of bubbles and improve the quality of the colored photovoltaic tiles.

[0066] Referring to Table 1, specifically, the vacuuming time is 8 min to 15 min, and the vacuum degree is -95 kPa to -100 kPa.

[0067]

[0068] Table 1

[0069] In some embodiments, a stepped heating method is used during the lamination process of heating the laminated structure formed by sequentially stacking the first adhesive layer, the battery layer, the second adhesive layer and the back cover to the lamination temperature.

[0070] In the above embodiments, stepped heating means setting multiple temperature steps during the heating process. The temperature and time of each step can be precisely controlled. This helps to ensure that the laminated structure gradually adapts to the temperature change during the heating process, so that the first and second adhesive film layers can melt better and penetrate into the tiny gaps during the gradual heating process, thereby helping to improve the bonding strength and sealing performance after lamination.

[0071] In practical applications, the process of heating the laminated structure formed by sequentially stacking the first adhesive film layer, the battery layer, the second adhesive film layer, and the back cover to the lamination temperature for lamination specifically includes: a first lamination, a second lamination, a third lamination, and a fourth lamination performed sequentially; the temperatures of the first lamination, the second lamination, the third lamination, and the fourth lamination are increased step by step.

[0072] By gradually increasing the temperature in stages, the material can adapt to temperature changes, reducing thermal stress caused by sudden temperature changes; multiple laminations help the first and second adhesive layers penetrate the gaps more evenly, forming a stronger bond.

[0073] Referring to Table 2, specifically, the lamination temperature for the first lamination is 80℃~90℃; the lamination temperature for the second lamination is 100℃~110℃; the lamination temperature for the third lamination is 130℃~140℃; and the lamination temperature for the fourth lamination is 150℃~155℃.

[0074] In the above embodiments, the first lamination time is 5 min to 10 min; the second lamination time is 5 min to 10 min; the third lamination time is 5 min to 10 min; and the fourth lamination time is 30 min to 40 min.

[0075] For the multi-layer lamination process of the stacked structure, specific time ranges are set for each lamination. This helps to precisely control the lamination process, ensuring that the stacked structure can be heated evenly and form a good bond. It is worth noting that the final lamination, i.e., the fourth lamination, is set with a longer time to ensure that the first and second adhesive film layers are completely cured, forming a stable adhesive structure, thereby helping to improve the durability and reliability of the colored photovoltaic tiles.

[0076] Lamination temperature (°C) for the first lamination 80-90 Time for the first lamination (min) 5-10 The lamination temperature (°C) for the second lamination. 100-110 Time for the second lamination (min) 5-10 The lamination temperature (°C) for the third lamination. 130-140 Time for the third lamination (min) 5-10 The lamination temperature (°C) for the fourth lamination. 150-155 Time for the fourth lamination (min) 30-40

[0077] Table 2

[0078] In some embodiments, the material of the first adhesive film layer includes EVA (Ethylene-Vinyl Acetate), POE (Polyolefin Elastomer), or PVB (Polyvinyl Butyral), and / or the material of the second adhesive film layer includes EVA, POE, or PVB.

[0079] In practical applications, the first and second adhesive film layers are made of the same material. Using the same material facilitates processing.

[0080] In some embodiments, the front cover is tempered glass, and / or the rear cover is tempered glass.

[0081] In practical applications, both the front and rear cover plates are made of tempered glass to achieve double-glass encapsulation, which improves the fire resistance of the colored photovoltaic tiles, makes them more reliable, and enables bi-sided power generation, thus improving the power generation efficiency of the colored photovoltaic tiles.

[0082] In some embodiments, the battery layer is a crystalline silicon battery cell or a thin-film battery cell.

[0083] In some embodiments, the colored photovoltaic tiles are curved tiles. The lamination equipment uses a vacuum bag lamination system.

[0084] In the above embodiments, since the colored photovoltaic tiles are curved irregular structures, each layer of the structure needs to be bonded to the curved surface of the back cover after one lamination to form a curved laminate. Therefore, by using a vacuum bag lamination device to apply vacuum pressure, the laminated structure can be tightly bonded, thereby making the laminated curved laminate have better integrity and stability.

[0085] In the actual processing, before lamination, the laminated structure undergoes a certain period of surface conformal treatment, so that the shape of the laminated structure gradually adapts to the curved shape of the back cover plate, ensuring that the layers can fit tightly together during the lamination process and reducing the generation of air bubbles and voids.

[0086] Referring to Table 2, specifically, the irregular processing time is 15 min to 20 min.

[0087] Reference Figure 2 and Figure 3 In some embodiments, this application also provides a colored photovoltaic tile 10, the structure of which specifically includes a back cover plate 100, a second adhesive film layer 110, a battery layer 120, a first adhesive film layer 130, an encapsulating adhesive layer 140, and a front cover plate 150.

[0088] Specifically, the second adhesive film layer 110 is disposed on one side of the rear cover plate 100; the battery layer 120 is disposed on the side of the second adhesive film layer 110 opposite to the rear cover plate 100; the first adhesive film layer 130 is disposed on the side of the battery layer 120 opposite to the rear cover plate 100; the encapsulating adhesive layer 140 is disposed on the side of the first adhesive film layer 130 opposite to the rear cover plate 100; and the front cover plate 150 is disposed on the side of the encapsulating adhesive layer 140 opposite to the rear cover plate 100. That is, the rear cover plate 100, the second adhesive film layer 110, the battery layer 120, the first adhesive film layer 130, the encapsulating adhesive layer 140, and the front cover plate 150 are stacked sequentially. The front cover plate 150 has ink printed inside; the curing temperature of the ink is greater than or equal to the curing temperature of the encapsulating adhesive layer 140.

[0089] In the above embodiment, low-temperature ink is printed inside the front cover plate 150, giving the front cover plate a colorful appearance. Since low-temperature ink can be free of heavy metals and is environmentally friendly, its application in the front cover plate 150 of environmentally friendly colored photovoltaic tiles can meet the needs of environmental protection, aesthetics and diversity.

[0090] In practical applications, the curing temperature of the ink is in the range of 100℃ to 120℃. The ink is a low-temperature ink; because it is free of heavy metals, it is environmentally friendly and can be used on the front cover of environmentally friendly colored photovoltaic tiles, meeting the needs for environmental protection, aesthetics, and diversity.

[0091] In some embodiments, the material of the first adhesive film layer 130 includes EVA (Ethylene-Vinyl Acetate), POE (Polyolefin Elastomer), or PVB (Polyvinyl Butyral), and / or the material of the second adhesive film layer 110 includes EVA, POE, or PVB.

[0092] In practical applications, the first adhesive layer 130 and the second adhesive layer 110 are made of the same material. Using the same material facilitates processing.

[0093] In some embodiments, the front cover 150 is tempered glass, and / or the rear cover 100 is tempered glass.

[0094] In practical applications, both the front cover plate 150 and the rear cover plate 100 are made of tempered glass to achieve double-glass encapsulation, which improves the fire resistance of the colored photovoltaic tile 10, makes the quality more reliable, and enables bi-sided power generation, thereby improving the power generation efficiency of the colored photovoltaic tile 10.

[0095] In some embodiments, the battery layer 120 is a crystalline silicon battery cell or a thin-film battery cell.

[0096] As a specific implementation of the above embodiments, the colored photovoltaic tile 10 is a curved tile.

[0097] Reference Figure 5 , Figure 6 and Figure 7 In some embodiments, this application also provides a packaging fixture 20, which is applied in the preparation method of the colored photovoltaic tile provided in any of the above embodiments, or is used to package the colored photovoltaic tile 10 provided in this application.

[0098] Specifically, the packaging fixture includes a base 200, on which a first slot 201 and a second slot 202 are provided; and an edge sealing member 210, on which a third slot 211 and a fourth slot 212 are provided.

[0099] Thus, during encapsulation, the laminate 13 (e.g., the laminate obtained by laminating the front cover plate 150 and the laminate structure formed by sequentially stacking the first adhesive film layer 130, the battery layer 120, the second adhesive film layer 110, and the rear cover plate 100) is obtained. Figure 3 and Figure 4As shown, the components are inserted into the first slot 201 and the second slot 202 respectively. Then, edge sealing pieces 210 are inserted into both sides of the front cover plate 150 and the laminate 13 to fix the front cover plate 150 and the laminate 13. This forms a cavity between the front cover plate 150 and the laminate 13. Subsequently, liquid curing adhesive is poured into the cavity. Finally, the semi-finished product with the curing adhesive poured in is placed vertically in the curing equipment for curing. After curing, the colored photovoltaic tile is obtained.

[0100] In some embodiments, at least one of the first slot 201, the second slot 202, the third slot 211, and the fourth slot 212 is made of a soft material.

[0101] The use of soft materials allows the slots to better adapt to and secure the laminate and front cover plate, ensuring a smooth encapsulation process. In actual manufacturing, the first slot 201, the second slot 202, the third slot 211, and the fourth slot 212 are all made of soft materials; and the widths of the first slot 201 and the third slot 211 are slightly smaller than the thickness of the front cover plate 150, while the widths of the second slot 202 and the fourth slot 212 are slightly smaller than the thickness of the laminate 13. This allows the slots to undergo a certain degree of elastic deformation when the laminate 13 or the front cover plate 150 is inserted, thus securing them more tightly.

[0102] This application does not impose any particular limitation on the type of flexible material; any known flexible material may be used. For example, flexible materials include rubber or polyvinyl chloride, etc.

[0103] In some embodiments, the colored photovoltaic tile 10 has a first side 11 and a second side 12; the first side 11 and the second side 12 are adjacent; the orientation of the first slot 201 and the second slot 202 is consistent with the orientation of the first side 11; the orientation of the third slot 211 and the fourth slot 212 is consistent with the orientation of the second side 12.

[0104] This design ensures that the base 200 and the edge sealing piece 210 maintain structural consistency with the colored photovoltaic tile 10.

[0105] In some embodiments, this application also provides a photovoltaic building, which includes colored photovoltaic tiles manufactured using the method for preparing colored photovoltaic tiles as provided in any of the above embodiments, and / or colored photovoltaic tiles as proposed in any of the above embodiments. Thus, the photovoltaic building possesses all the beneficial effects of any of the above embodiments, which will not be elaborated further here.

[0106] It should be clarified that in the claims, description, and accompanying drawings of this application, the term "multiple" refers to two or more objects. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description process, not to indicate or imply that the device or element referred to must have the described specific orientation, or be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limitations on this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood based on the specific circumstances of the above data.

[0107] In the claims, description, and accompanying drawings of this application, 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 this application. In the claims, description, and accompanying drawings of this application, 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.

[0108] The above are merely preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for preparing colored photovoltaic tiles, characterized in that, include: The system provides a rear cover, a first adhesive layer, a battery layer, a second adhesive layer, and a front cover; the interior of the front cover is printed with ink. The laminated structure formed by sequentially stacking the first adhesive film layer, the battery layer, the second adhesive film layer and the rear cover plate is heated to the lamination temperature and laminated, so that the first adhesive film layer and the second adhesive film layer melt and then solidify. The front cover is disposed on the side of the first adhesive film layer away from the rear cover, and there is a gap between the front cover and the first adhesive film layer; A liquid encapsulating adhesive layer is formed between the front cover plate and the first adhesive film layer, and then heated to the curing temperature for curing. The curing temperature of the encapsulating adhesive layer is less than or equal to the curing temperature of the ink.

2. The method for manufacturing a colored photovoltaic tile according to claim 1, characterized in that, The curing temperature of the ink is in the range of 100°C to 120°C.

3. The method for manufacturing a colored photovoltaic tile according to claim 1, characterized in that, Before curing at the curing temperature, the method for preparing the colored photovoltaic tile also includes: vacuuming.

4. The method of claim 1, wherein the color photovoltaic tile is prepared by the steps of: During the lamination process, a stepped heating method is used when heating the laminated structure formed by sequentially stacking the first adhesive film layer, the battery layer, the second adhesive film layer, and the back cover plate to the lamination temperature.

5. The method for producing a colored photovoltaic tile according to claim 4, characterized in that, The process of heating the laminated structure formed by sequentially stacking the first adhesive film layer, the battery layer, the second adhesive film layer, and the back cover plate to the lamination temperature for lamination specifically includes: The first lamination, second lamination, third lamination, and fourth lamination are performed sequentially; the temperature of the first lamination, the second lamination, the third lamination, and the fourth lamination increases progressively.

6. The method for producing a colored photovoltaic tile according to claim 5, characterized in that, The lamination temperature for the first lamination is 80℃~90℃; the lamination temperature for the second lamination is 100℃~110℃; the lamination temperature for the third lamination is 130℃~140℃; and the lamination temperature for the fourth lamination is 150℃~155℃.

7. The method for producing a colored photovoltaic tile according to claim 6, characterized in that, The first lamination time is 5 min to 10 min; the second lamination time is 5 min to 10 min; the third lamination time is 5 min to 10 min; and the fourth lamination time is 30 min to 40 min.

8. Process for the production of coloured photovoltaic tiles according to any one of claims 1 to 7, characterized in that, The thickness of the gap is 0.2mm to 0.5mm.

9. Process for the production of coloured photovoltaic tiles according to any one of claims 1 to 7, characterized in that, The material of the first adhesive film layer includes EVA, POE or PVB, and / or the material of the second adhesive film layer includes EVA, POE or PVB.

10. Process for the production of coloured photovoltaic tiles according to any one of claims 1 to 7, characterized in that, The front cover is made of tempered glass, and / or the rear cover is made of tempered glass.

11. A colored photovoltaic tile, characterized in that, include: Rear cover; The second adhesive film layer is disposed on one side of the rear cover plate; A battery layer is disposed on the side of the second adhesive film layer opposite to the rear cover plate; The first adhesive film layer is disposed on the side of the battery layer opposite to the rear cover plate; An encapsulating adhesive layer is disposed on the side of the first adhesive film layer opposite to the rear cover plate; A front cover is disposed on the side of the encapsulating adhesive layer opposite to the rear cover; the interior of the front cover is printed with ink; the curing temperature of the ink is greater than or equal to the curing temperature of the encapsulating adhesive layer.

12. The colored photovoltaic shingle of claim 11, wherein, The curing temperature of the ink is in the range of 100°C to 120°C.

13. A packaging tool, characterized by The method for preparing colored photovoltaic tiles as described in any one of claims 1 to 10, or for encapsulating colored photovoltaic tiles as described in claim 11 or 12; the encapsulation fixture includes: A base, wherein the base is provided with a first slot and a second slot; An edge banding component, wherein the edge banding component is provided with a third groove and a fourth groove.

14. The packaging tool of claim 13, wherein, At least one of the first slot, the second slot, the third slot, and the fourth slot is made of a soft material.

15. The packaging tool of claim 13, wherein, The colored photovoltaic tile has a first side and a second side; the first side and the second side are adjacent to each other; The orientation of the first slot and the second slot is consistent with the orientation of the first side; The orientation of the third and fourth slots is consistent with that of the second side.

16. A photovoltaic building, characterized by include: Colored photovoltaic tiles prepared by the method described in any one of claims 1 to 10; and / or The colored photovoltaic tile as described in claim 11 or 12.

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