Photovoltaic piece, photovoltaic module and photovoltaic system

Abstract

The utility model discloses a photovoltaic piece, a photovoltaic module and a photovoltaic system. The photovoltaic piece is provided with a light receiving side and a backlight side which are opposite to each other, and comprises two cover plates, a battery layer, an adhesive film and a texture layer. The two cover plates are arranged in a stacked mode in the direction from the light receiving side to the backlight side. The battery layer is used for converting light energy into electric energy and is arranged between the two cover plates. And the adhesive film is arranged between the cover plate and the battery layer and is used for connecting the cover plate and the battery layer. The texture layer is arranged on the light receiving side and connected with the cover plate, and the texture layer comprises texture patterns. In the application, the adhesive film is arranged between the cover plate and the battery layer and is used for connecting the cover plate and the battery layer, the texture layer is arranged on the light receiving side and is connected with the cover plate, and the texture layer comprises the texture pattern, so that when the photovoltaic piece is in a light environment for a long time, the texture pattern can play a role in protecting the adhesive film, ultraviolet rays acting on the adhesive film are less, and the service life of the photovoltaic piece is prolonged. The possibility of aging damage of the adhesive film is reduced, and the stability and reliability of the photovoltaic component structure are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic, more particularly, to a photovoltaic component, a photovoltaic assembly and a photovoltaic system. BACKGROUND

[0002] With the increasing awareness of the use of renewable energy, photovoltaic power generation, as one of the main ways of solar energy utilization, has also been widely used. At present, photovoltaic components can be installed on roofs or other carriers and used to convert solar energy into electrical energy to achieve energy saving, environmental protection and other purposes. In the related art, the photovoltaic component includes two cover plates and a cell sheet, and the cell sheet is arranged between the two cover plates by a glue film. However, since the cover plate is usually made of a light-transmitting material, when it is in the light environment for a long time, most of the ultraviolet rays in the sunlight will directly act on the glue film, causing the glue film to age and damage, affecting the stability and reliability of the photovoltaic component structure. CONTENT OF THE UTILITY MODEL

[0003] The embodiments of the present application provide a photovoltaic component, a photovoltaic assembly and a photovoltaic system to solve at least one of the above technical problems.

[0004] The photovoltaic component of the embodiments of the present application has opposite light-receiving sides and back sides, and includes cover plates, a cell layer, a glue film and a texture layer. The cover plates include two, and the two cover plates are stacked in the direction from the light-receiving side to the back side. The cell layer is used to convert light energy into electrical energy, and the cell layer is arranged between the two cover plates. The glue film is arranged between the cover plates and the cell layer and is used to connect the cover plates and the cell layer. The texture layer is arranged on the light-receiving side and connected with the cover plates, and the texture layer includes a texture pattern.

[0005] In some embodiments, in the direction from the light-receiving side to the back side, the projection of the texture layer on the cover plate surrounds the projection of the cell layer on the cover plate.

[0006] In some embodiments, in the direction from the light-receiving side to the back side, the projection of the texture layer on the cover plate covers the projection of the glue film on the cover plate.

[0007] In some embodiments, the two cover plates include a first cover plate and a second cover plate, and the first cover plate and the second cover plate are sequentially stacked in the direction from the light-receiving side to the back side; the glue film includes a first glue film and a second glue film, the first glue film is arranged between the first cover plate and the cell layer, and the second glue film is arranged between the second cover plate and the cell layer.

[0008] In some embodiments, the textured pattern is formed on the side of the first cover plate facing the battery layer by at least one of screen printing, printing, roller brushing, hot pressing and coating.

[0009] In some embodiments, the texture layer further includes a texture film on which the texture pattern is provided; the texture film is disposed on the side of the first cover plate opposite to the battery layer.

[0010] In some embodiments, the texture layer further includes a texture film on which the texture pattern is provided; the texture film is disposed between the first cover plate and the first adhesive film.

[0011] In some embodiments, the textured film is made of at least one of PET, ETFE, PVB, and EVA.

[0012] In some embodiments, the photovoltaic device further includes a junction box located on the backlight side and electrically connected to the battery layer.

[0013] In some embodiments, the texture pattern includes at least one of asphalt texture, tree texture, and stone texture.

[0014] The photovoltaic module of this application includes the photovoltaic element described in any of the above embodiments.

[0015] The photovoltaic system of this application includes the photovoltaic module described in any of the above embodiments.

[0016] In the photovoltaic device, photovoltaic module, and photovoltaic system of this application, the battery layer is disposed between two cover plates, the encapsulant film is disposed between the cover plates and the battery layer and is used to connect the cover plates and the battery layer, and the texture layer is disposed on the light-receiving side and connected to the cover plates. The texture layer includes a texture pattern. Thus, when the photovoltaic device is exposed to light for a long time, the texture pattern can protect the encapsulant film, that is, prevent ultraviolet rays in sunlight from irradiating the encapsulant film, so that less ultraviolet rays act on the encapsulant film, reducing the possibility of aging and damage to the encapsulant film, and improving the stability and reliability of the photovoltaic device structure.

[0017] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0018] 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, wherein:

[0019] Figure 1This is a three-dimensional structural schematic diagram of a photovoltaic system according to certain embodiments of this application;

[0020] Figure 2 yes Figure 1 The diagram shows a planar structural schematic of the photovoltaic element of the photovoltaic module in the photovoltaic system from one perspective.

[0021] Figure 3 yes Figure 1 A schematic diagram of the planar structure of the photovoltaic components of the photovoltaic module in the photovoltaic system shown from another perspective;

[0022] Figure 4 yes Figure 1 The diagram shows an exploded view of the photovoltaic components in a photovoltaic system.

[0023] Explanation of key component symbols:

[0024] 1000 photovoltaic system;

[0025] 100 photovoltaic modules; 300 supporting modules;

[0026] 10 Photovoltaic components; 101 Light-receiving side, 103 Backlight side; 110 Cover plate, 11 First cover plate, 12 Second cover plate; 13 Battery layer; 14 Texture layer; 130 Adhesive film, 15 First adhesive film, 16 Second adhesive film; 17 Junction box; 18 Electrical connectors. Detailed Implementation

[0027] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0028] In the description of this application, it should be understood that the terms "thickness," "upper," "top," "bottom," "inner," "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly. In one example, they can be a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection, an electrical connection, or a connection that allows communication between them; they can be a direct connection or an indirect connection through an intermediate medium; they can be the internal connection of two elements or the interaction between two elements.

[0030] With increasing awareness of renewable energy utilization, photovoltaic (PV) power generation, as one of the main methods of solar energy utilization, has been widely applied. Currently, PV devices can be installed on rooftops or other structures to convert solar energy into electricity, achieving energy conservation and environmental protection. In related technologies, a PV device includes two cover plates and solar cells, with the cells positioned between the two cover plates via an encapsulating film. However, because the cover plates are typically made of translucent materials, when exposed to sunlight for extended periods, most of the ultraviolet radiation from the sun directly affects the encapsulating film, causing it to age and deteriorate, thus impacting the stability and reliability of the PV device structure. Please refer to [link / reference]. Figure 1 To address the aforementioned issues, this application provides a photovoltaic component 10, a photovoltaic module 100, and a photovoltaic system 1000.

[0031] Please see Figure 1 The photovoltaic system 1000 of this application includes photovoltaic modules 100. It should be noted that, in some embodiments, the photovoltaic system 1000 may include, but is not limited to, photovoltaic houses, photovoltaic carports, ground-mounted power stations, and floating photovoltaic systems.

[0032] Furthermore, in some embodiments, the photovoltaic system 1000 further includes a support component 300, on which the photovoltaic module 100 is disposed. Specifically, in some embodiments, the photovoltaic module 100 can be installed on the support component 300 using a detachable connection method, which facilitates the removal of the photovoltaic module 100 from the support component 300 when maintenance or replacement is required. The detachable connection method includes, but is not limited to, bolt connections and snap-fit ​​connections. In other embodiments, the photovoltaic module 100 can be installed on the support component 300 using a non-detachable connection method, which improves the connection strength between the photovoltaic module 1000 and the support component 300, enhances the photovoltaic system 1000's ability to resist external environmental factors, and ensures the stability and reliability of the photovoltaic system 1000's operation. The non-detachable connection method includes, but is not limited to, bonding or welding.

[0033] Understandably, the support component 300 is a structure within the photovoltaic system 1000 used to fix, support, and adjust the photovoltaic module 100, ensuring that the photovoltaic module 100 can receive sunlight at an optimal angle and position, while also resisting the effects of environmental factors (such as wind, rain, and snow). The photovoltaic module 100 is a collection of devices within the photovoltaic system 1000 used to convert solar energy into electrical energy. Specifically, the photovoltaic module 100 converts solar energy into electrical energy, achieving sustainable energy utilization. The photovoltaic module 100 does not produce greenhouse gases such as carbon dioxide or pollutants during power generation, resulting in a low environmental impact. The photovoltaic module 100 helps reduce dependence on traditional energy sources, mitigating air pollution and climate change issues. The photovoltaic module 100 can be distributed and installed in various locations, such as rooftops, wastelands, and farmland, fully utilizing solar energy resources. This distributed layout helps reduce transmission losses and improves the stability and disaster resistance of the power system. The photovoltaic module 100 can be combined and expanded as needed, suitable for power generation systems of various sizes and requirements.

[0034] For example, the support component 300 may include structural components such as columns, beams, and purlins to provide a stable support platform for the photovoltaic module 100, enabling the photovoltaic module 100 to be installed on a roof, other locations on a building besides the roof, or other carriers. In some embodiments of this application, the photovoltaic system 1000 includes a photovoltaic roof. In this case, the support component 300 may be purlins installed on the roof, and the photovoltaic module 100 can be installed on the roof via the support component 300 to collectively form a photovoltaic roof.

[0035] In some embodiments, the photovoltaic system 1000 further includes an energy storage component electrically connected to the photovoltaic module 100. The energy storage component can store the electrical energy generated by the photovoltaic module 100 and power loads such as household appliances and portable devices. Alternatively, the photovoltaic module 100 can directly power loads such as household appliances and portable devices. The energy storage component and the photovoltaic module 100 can be electrically connected via cables or through intermediate devices such as junction boxes or busbars. It should be noted that in some embodiments, the energy storage component can be not only a lithium-ion battery, lead-acid battery, or other types of rechargeable batteries, but also a supercapacitor or other component capable of storing and releasing electrical energy.

[0036] Since the photovoltaic system 1000 in this embodiment includes a photovoltaic module 100, it is understood that the photovoltaic system 1000 includes at least the same beneficial effects as the photovoltaic module 100. Therefore, for the beneficial effects of the photovoltaic system 1000, please refer to the beneficial effects of the photovoltaic module 100 described below.

[0037] Please see Figures 1 to 3 The photovoltaic module 100 of the present application includes a photovoltaic element 10.

[0038] Furthermore, in some embodiments, the photovoltaic element 10 includes at least two photovoltaic elements 10, which are connected to each other. Specifically, at least two photovoltaic elements 10 can be connected together in a specific direction by overlapping or splicing to form an integral module (i.e., photovoltaic module 100). When the photovoltaic system 1000 includes a photovoltaic house, the user can install the integral module on the roof or other carrier using the support component 300, which can effectively improve installation efficiency while maximizing power generation. Moreover, forming at least two photovoltaic modules 100 into an integral module first, and then installing the integral module on the roof using the support component 300, can reduce high-altitude work on the roof and improve safety.

[0039] For example, at least two photovoltaic modules 10 are connected to each other by overlapping, which makes the connection between adjacent photovoltaic modules 10 faster and more convenient, and facilitates the installation and disassembly of photovoltaic modules 10. This allows for faster and more efficient completion of work during installation and maintenance, improving work efficiency. In addition, at least two photovoltaic modules 10 can also be connected using fasteners (such as bolts) while overlapping, making the assembled photovoltaic module 100 more stable and improving the stability and reliability of the photovoltaic module 100 in operation.

[0040] It should be noted that in some embodiments, at least two photovoltaic elements 10 may have the same shape and size, or they may be different. Users can select photovoltaic elements 10 with appropriate shapes and sizes according to specific usage requirements. For example, to accommodate the size of the carrier, users can select at least two photovoltaic elements 10 of different sizes.

[0041] Since the photovoltaic module 100 in this embodiment includes the photovoltaic element 10, it is understood that the photovoltaic module 100 has at least the same beneficial effects as the photovoltaic element 10. Therefore, for the beneficial effects of the photovoltaic module 100, please refer to the beneficial effects of the photovoltaic element 10 described below.

[0042] Please see Figures 2 to 4 The photovoltaic component 10 of this application embodiment has a light-receiving side 101 and a backlighting side 103 facing away from each other, and includes a cover plate 110, a battery layer 13, an encapsulating film 130, and a textured layer 14. Two cover plates 110 are stacked in the direction from the light-receiving side 101 to the backlighting side 103. The battery layer 13 is used to convert light energy into electrical energy and is disposed between the two cover plates 110. The encapsulating film 130 is disposed between the cover plate 110 and the battery layer 13 and is used to connect the cover plate 110 and the battery layer 13. The textured layer 14 is disposed on the light-receiving side 101 and connected to the cover plate 110, and the textured layer 14 includes a textured pattern.

[0043] It is understood that the photovoltaic element 10 is a component in the photovoltaic module 100 used to convert light energy into electrical energy. Users can select photovoltaic elements 10 with different efficiencies and sizes based on their usage needs and environmental conditions. For example, the photovoltaic element 10 can have a planar or curved shape to adapt to different user needs, thereby better utilizing solar energy and improving the power generation efficiency of the photovoltaic element 10.

[0044] In some embodiments of this application, the photovoltaic element 10 has a light-receiving side 101 and a backlighting side 103 facing away from each other. The light-receiving side 101 is the side of the photovoltaic element 10 that directly faces the sun, receives sunlight, and completes photoelectric conversion. The backlighting side 103 is the side of the photovoltaic element 10 that faces away from the sun. The photovoltaic element 10 may have only the light-receiving side 101 receiving sunlight and converting it into electrical energy to generate electricity; or, both the light-receiving side 101 and the backlighting side 103 of the photovoltaic element 10 may receive sunlight and convert it into electrical energy to generate electricity (for example, the backlighting side 103 may receive ground-reflected light).

[0045] The cover plate 110 is a structural component in the photovoltaic element 10 that serves to support and protect it. Specifically, the two cover plates 110 work together to protect the battery layer 13 and other internal structural components of the photovoltaic element 10 from external physical impacts and environmental corrosion, reducing the possibility of damage to the photovoltaic element 10. Furthermore, the cover plate 110 also enhances the structural strength of the photovoltaic element 10, improves its resistance to deformation, and increases its operational stability. It should be noted that in some embodiments, the cover plate 110 may be made of at least one of the following materials: glass, PET, metal, composite fiber, etc. At least the cover plate 110 located on the light-receiving side 101 of the photovoltaic element 10 needs to be made of a light-transmitting material.

[0046] The battery layer 13 is a structural component in the photovoltaic element 10 used to convert light energy into electrical energy. The battery layer 13 may include at least one of the following: silicon solar cells, thin-film solar cells, organic polymer solar cells, and nanocrystalline solar cells. The battery layer 13 includes at least one battery. For example, when the battery layer 13 includes multiple batteries, the multiple batteries can be connected in series or parallel via cables. It should be noted that when both the light-receiving side 101 and the backlight side 103 of the photovoltaic element 10 can receive sunlight, the battery layer 13 may include bifacial batteries, which can achieve bifacial power generation to improve power generation efficiency.

[0047] The adhesive film 130 is a structural component in the photovoltaic element 10 that serves a connecting function. Specifically, there may be two adhesive films 130, which are respectively disposed between the battery layer 13 and the two cover plates 110, and are used to connect the cover plates 110 and the battery layer 13 together to form a stable and robust structure, thereby improving the overall structural stability. It should be noted that, in some embodiments, the adhesive film 130 may be made of at least one of the following materials: EVA, POE, PVB, and UV-curable adhesive.

[0048] In some embodiments of this application, the texture layer 14 includes a texture pattern, which includes at least one of asphalt texture, tree grain texture, and stone texture. For example, in a photovoltaic system 1000 ( Figure 1 As shown, if the photovoltaic system 1000 is made entirely of wood, the texture pattern can include tree grain texture. This will make the texture of the photovoltaic component 10 more consistent with the texture of the photovoltaic system 1000, reduce visual defects, and improve the aesthetics of the photovoltaic system 1000.

[0049] The texture layer 14 is disposed on the light-receiving side 101, thereby blocking light (e.g., sunlight) and preventing excessive ultraviolet radiation from irradiating the adhesive film 130, which could lead to aging and damage. This improves the stability and reliability of the photovoltaic component 10 structure. In some embodiments of this application, the texture layer 14 includes at least one layer, which is disposed on the light-receiving side 101 and connected to the cover plate 110.

[0050] In the photovoltaic component 10 of this application embodiment, the battery layer 13 is disposed between two cover plates 110, the encapsulant film 130 is disposed between the cover plate 110 and the battery layer 13, and is used to connect the cover plate 110 and the battery layer 13. The texture layer 14 is disposed on the light-receiving side 101 and is connected to the cover plate 110. The texture layer 14 includes a texture pattern. Thus, when the photovoltaic component 10 is exposed to light for a long time, the texture pattern can protect the encapsulant film 130, that is, prevent ultraviolet rays in sunlight from irradiating the encapsulant film 130, so that less ultraviolet rays act on the encapsulant film 130, reducing the possibility of aging and damage of the encapsulant film 130, and improving the stability and reliability of the photovoltaic component 10 structure.

[0051] Furthermore, the texture pattern allows the photovoltaic component 10 to better integrate with the external structure. For example, the color or texture of the photovoltaic component 10 may be more consistent with the color or texture of the external structure (such as the support component 300), thereby reducing visual defects and improving the aesthetics of the photovoltaic system 1000. For instance, in the case where the photovoltaic system 1000 includes a photovoltaic house, the texture layer 14 allows for a better integration of the photovoltaic component 10 with the roof structure, enhancing the aesthetics of the photovoltaic system 1000.

[0052] The photovoltaic element 10 will be further explained below with reference to the accompanying drawings.

[0053] Please see Figure 2 and Figure 4 In some embodiments, the projection of the texture layer 14 onto the cover plate 110 in the direction from the light-receiving side 101 to the backlight side 103 surrounds the projection of the battery layer 13 onto the cover plate 110.

[0054] Specifically, in some embodiments, the shape and size of the cross-section of the adhesive film 130 cut by the first plane (a plane perpendicular to the direction from the light-receiving side 101 to the backlight side 103) can be the same as the shape and size of the cross-section of the cover plate 110 cut by the first plane. Wherein, when the projection of the texture layer 14 onto the cover plate 110 surrounds the projection of the battery layer 13 onto the cover plate 110, the texture pattern can provide protection for a portion of the adhesive film 130, preventing excessive ultraviolet radiation from irradiating the adhesive film 130 and causing aging and damage, thereby improving the stability and reliability of the photovoltaic element 10 structure.

[0055] Furthermore, the projection of the texture layer 14 onto the cover plate 110 surrounds the projection of the battery layer 13 onto the cover plate 110, preventing the texture layer 14 from blocking light illuminating the battery layer 13 and ensuring that more light can reach the battery layer 13, thereby improving the power generation efficiency of the photovoltaic device 10. It should be noted that in some embodiments, when the battery layer 13 includes multiple battery cells, the projection of the texture layer 14 onto the cover plate 110 can surround the projections of the multiple battery cells onto the cover plate 110.

[0056] In other embodiments, the projection of the textured layer 14 onto the cover plate 110 and the projection of the covering film 130 onto the cover plate 110 are in the direction from the light-receiving side 101 to the backlight side 103.

[0057] Specifically, in some embodiments, the shape and size of the cross-section of the adhesive film 130 cut by the first plane (a plane perpendicular to the direction from the light-receiving side 101 to the backlight side 103) can be the same as the shape and size of the cross-section of the cover plate 110 cut by the first plane. The projection of the texture layer 14 onto the cover plate 110 covers the projection of the adhesive film 130 onto the cover plate 110. That is, the texture layer 14 can protect the entire adhesive film 130, preventing excessive ultraviolet radiation from causing aging and damage to the adhesive film 130, thereby improving the stability and reliability of the photovoltaic component 10 structure.

[0058] Furthermore, when the texture layer 14 is projected onto the cover plate 110 and the covering film 130 is projected onto the cover plate 110, the texture layer 14 can also protect the battery layer 13, preventing the battery layer 13 from overheating due to excessive external light. This ensures the stable operation of the photovoltaic element 10 and improves the power generation efficiency of the photovoltaic element 10. On the other hand, it can prevent the photovoltaic element 10 from overheating and damage, and extend the service life of the photovoltaic element 10.

[0059] In this embodiment, the projection of the texture layer 14 onto the cover plate 110 in the direction from the light-receiving side 101 to the backlight side 103, and the projection of the battery layer 13 onto the cover plate 110 are used as examples for illustration.

[0060] Please see Figure 2 and Figure 4 In some embodiments, the two cover plates 110 include a first cover plate 11 and a second cover plate 12, which are stacked sequentially in the direction from the light-receiving side 101 to the backlight side 103; the adhesive film 130 includes a first adhesive film 15 and a second adhesive film 16, the first adhesive film 15 being disposed between the first cover plate 11 and the battery layer 13, and the second adhesive film 16 being disposed between the second cover plate 12 and the battery layer 13.

[0061] Specifically, in the direction from the light-receiving side 101 to the backlight side 103, the first cover plate 11, the first encapsulant film 15, the battery layer 13, the second encapsulant film 16, and the second cover plate 12 are sequentially stacked. The first cover plate 11 and the second cover plate 12 provide protection for the internal components of the photovoltaic element 10, such as the battery layer 13, reducing the possibility of damage to the photovoltaic element 10 and ensuring its normal operation. The first encapsulant film 15 and the second encapsulant film 16 enable the photovoltaic element 10 to be combined into a single structure, ensuring the stability and reliability of the photovoltaic element 10 structure.

[0062] In some embodiments, the textured pattern is formed on the side of the first cover plate 11 facing the battery layer 13 by at least one of the following processes: screen printing, printing, roller brushing, hot pressing, and coating. Thus, the first cover plate 11 can protect the textured pattern, reduce the possibility of the textured pattern falling off or being damaged (e.g., scratched), ensure the normal protective function of the textured layer 14 on the adhesive film 130, and reduce the possibility of the adhesive film 130 aging and being damaged.

[0063] In some embodiments, the texture layer 14 further includes a texture film on which a texture pattern is provided. It should be noted that the texture film can be a thin film structure with a specific pattern (i.e., a texture pattern). The texture film can be connected to external components (such as the first cover plate 11) by means of hot pressing or bonding.

[0064] Specifically, in some embodiments, the textured film is disposed on the side of the first cover plate 11 facing away from the battery layer 13. That is, the textured film is disposed on the outermost side of the photovoltaic element 10 (the side of the photovoltaic element 10 facing the sun). Thus, the textured film can block ultraviolet rays in sunlight, resulting in less ultraviolet radiation acting on the adhesive film 130, reducing the possibility of aging and damage to the adhesive film 130, and improving the stability and reliability of the photovoltaic element 10 structure.

[0065] In other embodiments, a textured film is disposed between the first cover plate 11 and the first adhesive film 15. Thus, the textured film can block ultraviolet rays from sunlight, reducing the amount of ultraviolet radiation acting on the adhesive film 130, decreasing the likelihood of aging and damage to the adhesive film 130, and improving the stability and reliability of the photovoltaic element 10 structure.

[0066] It should be noted that, in some embodiments, the textured film is made of at least one of PET (polyethylene terephthalate), ETFE (ethylene-tetrafluoroethylene copolymer), PVB (polyvinyl butyral), and EVA (ethylene-vinyl acetate copolymer).

[0067] Understandably, since the first cover plate 11 is made of a light-transmitting material, when the texture pattern is formed on the side of the first cover plate 11 facing the battery layer 13, the texture film is disposed on the side of the first cover plate 11 away from the battery layer 13, or the texture film is disposed between the first cover plate 11 and the first adhesive film 15, the color and texture of the texture pattern can be seen by the user. This makes the color or texture of the photovoltaic component 10 more consistent with the color or texture of the external structure, thereby reducing visual defects and improving the photovoltaic system 1000 ( Figure 1 (As shown) aesthetic appeal.

[0068] Please see Figure 2 and Figure 3 In some embodiments, the photovoltaic element 10 further includes a junction box 17, which is located on the backlight side 103 and electrically connected to the battery layer 13.

[0069] Understandably, the junction box 17 is a component in the photovoltaic module 10 that serves as an electrical connection. The junction box 17 can be electrically connected to the battery layer 13 and the energy storage module to form a complete electrical circuit, enabling the electrical energy generated by the photovoltaic module 10 to be transmitted to the energy storage module. The junction box 17 is located on the backlight side 103, which reduces the possibility of impurities such as liquids or dust entering the junction box 17, preventing short circuits or corrosion, extending the service life of the junction box 17, and ensuring the stable operation of the photovoltaic module 100 in harsh environments. Furthermore, the junction box 17's location on the backlight side 103 also prevents users from seeing it, thereby reducing visual imperfections of the photovoltaic module 10 and improving its aesthetics.

[0070] In some embodiments, the photovoltaic module 10 further includes an electrical connector 18 for electrically connecting two adjacent junction boxes 17. Specifically, when the photovoltaic module 10 includes at least two modules, the junction boxes 17 of the at least two photovoltaic modules 10 can be connected together in series or parallel via electrical connection lines, thereby facilitating the control of functions such as charging or discharging of the photovoltaic module 100 and improving the stability and reliability of the photovoltaic module 100 operation.

[0071] In the description of this specification, the references to terms such as "some embodiments," "in one example," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the described embodiment or example is included in at least one embodiment or example of this application. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0072] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A photovoltaic device, characterized in that, The photovoltaic element has a light-receiving side and a back-lighting side facing away from each other, and includes: The cover plate includes two covers plate, which are stacked in the direction from the light-receiving side to the backlight side; A battery layer for converting light energy into electrical energy, the battery layer being disposed between the two cover plates; An adhesive film, wherein the adhesive film is disposed between the cover plate and the battery layer, and serves to connect the cover plate and the battery layer; and A texture layer is disposed on the light-receiving side and connected to the cover plate, the texture layer comprising a texture pattern.

2. The photovoltaic device according to claim 1, characterized in that, In the direction from the light-receiving side to the backlight side, the projection of the texture layer on the cover plate surrounds the projection of the battery layer on the cover plate; or, In the direction from the light-receiving side to the backlight side, the projection of the textured layer on the cover plate covers the projection of the adhesive film on the cover plate.

3. The photovoltaic device according to claim 1 or 2, characterized in that, The two cover plates include a first cover plate and a second cover plate, which are stacked sequentially in the direction from the light-receiving side to the backlight side; the adhesive film includes a first adhesive film and a second adhesive film, wherein the first adhesive film is disposed between the first cover plate and the battery layer, and the second adhesive film is disposed between the second cover plate and the battery layer.

4. The photovoltaic device according to claim 3, characterized in that, The textured pattern is formed on the side of the first cover plate facing the battery layer by at least one of the following processes: screen printing, printing, roller brushing, hot pressing, and coating.

5. The photovoltaic device according to claim 3, characterized in that, The texture layer further includes a texture film on which the texture pattern is provided; The textured film is disposed on the side of the first cover plate opposite to the battery layer; or, The textured film is disposed between the first cover plate and the first adhesive film.

6. The photovoltaic device according to claim 5, characterized in that, The textured film is made of at least one of PET, ETFE, PVB, and EVA.

7. The photovoltaic device according to claim 1, characterized in that, The photovoltaic device also includes: A junction box is located on the backlight side and is electrically connected to the battery layer.

8. The photovoltaic device according to claim 1, characterized in that, The texture pattern includes at least one of asphalt texture, tree texture, and stone texture.

9. A photovoltaic module, characterized in that, include: The photovoltaic device according to any one of claims 1-8.

10. A photovoltaic system, characterized in that, include: The photovoltaic module according to claim 9.

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