Water surface photovoltaic system

Abstract

The utility model relates to the technical field of photovoltaic cells, and provides a water surface photovoltaic system which comprises a photovoltaic assembly, a floating body and a connecting block. The connecting block is of a hollow structure and comprises a first connecting surface and a second connecting surface, a first mounting hole is formed in the first connecting surface and used for mounting the connecting block, and a second mounting hole is formed in the second connecting surface and used for mounting the photovoltaic module; the floating body is provided with a mounting surface, and the mounting surface is detachably connected with the first connecting surface; the photovoltaic module is fixedly arranged on the fixing frame, and the fixing frame is fixed on the second connecting surface. According to the embodiment of the invention, the photovoltaic module is high in strength, is not liable to deform, is tightly connected with the floating body through the hollow connecting block, is small in resistance, is high in stability, is convenient to install, and is easy to maintain.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic cell technology, and in particular to a water surface photovoltaic system. Background Art

[0002] With land resources becoming increasingly scarce, solar panel power generation may reach a bottleneck in the near future. Consequently, the use of photovoltaic modules mounted on water surfaces has become increasingly popular, significantly expanding their application areas. The diffuse reflective environment of the water surface also helps to increase the modules' power generation. However, the humid water environment and the penetration of water vapor can significantly corrode photovoltaic modules. Furthermore, the use of floating structures to support photovoltaic modules on water surfaces requires the use of floating structures, which float on the water surface and secure the modules above them. However, surface fluctuations can affect the connection between the photovoltaic modules and the floating structures. For example, if photovoltaic modules are installed on the sea, large waves can damage the connection between the modules and the floating structures, resulting in unstable and easily detached connections, thus affecting the efficiency of photovoltaic power generation.

[0003] It can be seen that how to ensure the stability of the connection between photovoltaic modules and floating bodies and avoid the corrosion of photovoltaic modules caused by water vapor penetration is a technical problem that needs to be solved urgently in the installation of surface photovoltaic systems. Utility Model Content

[0004] To solve at least one of the above technical problems, the present application provides a water surface photovoltaic system, wherein the photovoltaic modules are strong and not easily deformed, and are tightly connected to the floating body via connecting blocks, thus providing good stability, convenient installation, and easy maintenance.

[0005] Therefore, the present application provides a water surface photovoltaic system, including: a photovoltaic module, a fixing frame, a floating body and a connecting block; the connecting block is a hollow structure, including a first connecting surface and a second connecting surface, a first mounting hole is opened on the first connecting surface for connecting the floating body, and a second mounting hole is opened on the second connecting surface for installing the photovoltaic module; the floating body is provided with a mounting surface, and the mounting surface is detachably connected to the first connecting surface; the photovoltaic module is fixedly set on the fixing frame, and the fixing frame is fixed on the second connecting surface.

[0006] This implementation utilizes photovoltaic modules with mounting brackets, providing additional support, overall strength, and resistance to deformation. The hollow connecting blocks offer high structural strength, allowing wind and waves to pass through the hollow structure. The connecting blocks offer minimal resistance to wind and wave impact, effectively protecting against the impact of wind and waves. The photovoltaic modules are secured to the floating structure via these connecting blocks, ensuring a stable connection and facilitating easy installation and maintenance.

[0007] In combination with the above-mentioned water surface photovoltaic system, the installation surface is arranged obliquely to the water surface; and the first connection surface and the second connection surface are arranged parallel.

[0008] In this implementation, the inclined mounting surface is conducive to absorbing sunlight, and the connecting blocks are provided with parallel connecting surfaces, which can keep the distance between the photovoltaic modules and the mounting surface consistent. The photovoltaic modules are arranged parallel to the mounting surface to allow wind and waves to pass through with reduced resistance and reduced impact force, thereby improving the connection stability between the photovoltaic modules and the floating body.

[0009] In combination with the above-mentioned surface photovoltaic system, a solar panel fixing groove is provided at one end of the fixing frame, and a connecting plate is provided at the other end; the photovoltaic component is fixed in the solar panel fixing groove, and the connecting plate is detachably connected to the second connecting surface.

[0010] In this implementation, the photovoltaic module is fixed by the solar panel fixing groove, and is fixedly connected to the connecting block through the connecting plate. The photovoltaic module forms a whole through the fixing frame and the connecting block, has a stable connection relationship, and can further improve the stability of the photovoltaic module.

[0011] In combination with the above-mentioned surface photovoltaic system, the fixing frame is in the shape of an "I" character, and the "I"-shaped fixing frame has two grooves, and the inner surfaces of the two grooves are provided with serrations; the edges of the photovoltaic components are fixed in the grooves and abut against the serrations.

[0012] This implementation method uses two "I"-shaped fixing frames to fix the photovoltaic modules. Each fixing frame has two grooves. The two ends of the photovoltaic module can be inserted into the grooves of the two fixing frames respectively. The serrated structure provided on the inner surface of the groove can tighten the photovoltaic module and prevent the solar panel from slipping.

[0013] In combination with the above-mentioned water surface photovoltaic system, the first mounting hole is a long hole.

[0014] In this implementation, the first long hole is set as a long hole, which can adjust the installation position of the connecting block and meet the installation requirements of photovoltaic modules of different sizes, and has good versatility.

[0015] In combination with the above-mentioned water surface photovoltaic system, a connector is pre-buried in the floating body, and a part of the connector is located outside the floating body for connecting to the connection block.

[0016] In this implementation, connectors are pre-embedded on the floating body, which makes it more convenient to use and easier to operate.

[0017] In combination with the above-mentioned surface photovoltaic system, the photovoltaic module includes a first light-transmitting layer / first film layer / cell layer / second film layer / second light-transmitting layer stacked in sequence; a side-sealing tape layer is provided on the periphery of the photovoltaic module, and the side-sealing tape layer seals the first light-transmitting layer / first film layer / cell layer / second film layer / second light-transmitting layer stacked in sequence.

[0018] In this implementation, the photovoltaic module is provided with a first and second adhesive film layers that enhance light absorption, thereby increasing light absorption. The first and second light-transmitting layers protect the light-absorbing layer and the cell layer. Edge-sealing tape is provided around the periphery of the photovoltaic module to seal the first light-transmitting layer, the first adhesive film layer, the cell layer, the second adhesive film layer, and the second light-transmitting layer, preventing moisture from penetrating and corrosively affecting the various layers of the photovoltaic module.

[0019] In combination with the above-mentioned surface photovoltaic system, the edge sealing tape layer includes a weather-resistant layer / a water-blocking layer / an adhesive layer stacked in sequence, and the adhesive layer covers the periphery of the photovoltaic module.

[0020] The weather-resistant layer provided in this implementation can effectively prevent the aging of the water-blocking layer and the adhesive layer due to ultraviolet radiation, thereby preventing the edge-sealing tape layer from falling off due to the aging of the water-blocking layer and the adhesive layer. This improves the weather resistance of the edge-sealing tape layer and further increases the service life of the edge-sealing tape layer. The provision of a water-blocking layer can give the edge-sealing tape layer better water-blocking properties and a certain degree of plasticity, making it easier for the edge-sealing tape layer to seal solar panels of different thicknesses, thus being highly practical. The adhesive layer is used to bond solar panels, and the installation method is simple and easy to operate.

[0021] In combination with the above-mentioned water surface photovoltaic system, the thickness of the weather-resistant layer is 25 to 50 microns, the thickness of the water-blocking layer is 50 to 450 microns, and the thickness of the adhesive layer is 25 to 50 microns.

[0022] In combination with the above-mentioned water surface photovoltaic system, the weather-resistant layer is a fluorine-containing coating, the water-blocking layer is an aluminum foil layer, and the adhesive layer is a glue layer.

[0023] In this implementation, the fluorine-containing coating exhibits excellent corrosion resistance, meeting corrosion resistance requirements. The aluminum foil layer provides excellent water barrier properties and is impermeable. Using aluminum foil as a water barrier ensures a water vapor barrier. The adhesive layer facilitates bonding to photovoltaic modules, offering ease of use and low cost.

[0024] Compared to existing technologies, the water-based photovoltaic system provided by this application offers at least the following advantages: The system utilizes photovoltaic modules with fixed brackets, which enhance the modules' structural strength and prevent deformation. The modules are then tightly connected to the floating body via connecting blocks. The hollow connecting blocks offer high structural strength, allowing wind and waves to pass through them, creating minimal resistance and effectively resisting the impact of wind and waves. The photovoltaic modules are secured to the floating body via these connecting blocks, ensuring a stable connection between the two. Installation is convenient and maintenance-friendly.

[0025] Other features and advantages of the present invention will be described in detail in the subsequent specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following is a brief introduction to the drawings required for describing the embodiments or prior art.

[0027] Figure 1 A schematic diagram of the partial structure of a water surface photovoltaic system provided in an embodiment of the present application;

[0028] Figure 2 A schematic structural diagram of a connection block provided in an embodiment of the present application;

[0029] Figure 3 A schematic structural diagram of a photovoltaic module provided in an embodiment of the present application;

[0030] Figure 4 A schematic diagram of the partial structure of another water surface photovoltaic system provided in an embodiment of the present application;

[0031] Figure 5 A schematic cross-sectional view of a photovoltaic module according to an embodiment of the present application;

[0032] Figure 6 A schematic diagram of the cross-sectional structure of an edge-sealing tape layer provided in an embodiment of the present application.

[0033] In the picture:

[0034] 100, photovoltaic module; 111, first light-transmitting layer; 112, first adhesive film layer; 113, cell layer; 114, second adhesive film layer; 115, second light-transmitting layer; 116, edge-sealing tape layer; 116a, weather-resistant layer; 116b, water-blocking layer; 116c, adhesive layer; 120, fixing frame; 121, panel fixing groove; 122, connecting plate; 200, floating body; 210, mounting surface;

[0035] 300, connecting block; 310, first connecting surface; 320, second connecting surface; 330, first mounting hole; 340, second mounting hole. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0037] In the description of this application, the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are 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, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting this application.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0039] In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments.

[0040] With land resources becoming increasingly scarce and unable to meet the rapidly growing land demand for photovoltaic power generation, the region may face a development bottleneck in the near future. Consequently, the use of photovoltaic modules mounted on water surfaces has become increasingly popular, significantly expanding their application areas. Furthermore, the diffuse reflective environment of the water surface also helps to increase the modules' power generation. Photovoltaic modules, typically referring to photovoltaic panels, are significantly corrosive to the humid water environment and the infiltration of water vapor. Furthermore, surface-mounted photovoltaic modules require a floating support, which floats on the water surface and secures the modules above it. However, surface fluctuations can affect the connection between the modules and the float. For example, if a photovoltaic module is mounted on the sea, large waves can damage the connection, resulting in unstable and easily detached connections and impacting the efficiency of photovoltaic power generation.

[0041] In view of this, an embodiment of the present application provides a water surface photovoltaic system for use in photovoltaic power generation scenarios with the water surface as the installation base. For example, a photovoltaic power generation system is arranged on a vast sea surface. In the sea surface photovoltaic power generation system, the water surface photovoltaic system is used as the smallest unit for arrangement. Due to the obvious difference between the water surface and the land, the photovoltaic power generation system is not only affected by wind power, but also by the fluctuation of the water surface. This influence almost accompanies the entire power generation process and has a large impact on the water surface photovoltaic system. Therefore, the water surface photovoltaic system installed on the water surface must have the ability to overcome the above influences. In the water surface photovoltaic system and power generation device provided in the present application, the photovoltaic module itself has high strength and is not easy to deform. The photovoltaic module is tightly connected to the floating body through the connecting block, has good stability, and is easy to install and maintain. It can effectively improve the service life and power generation efficiency of the water surface photovoltaic system.

[0042] Figure 1 A schematic diagram of the partial structure of a water surface photovoltaic system provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the structure of a connection block provided in an embodiment of the present application. Figure 1 and Figure 2As shown, the surface photovoltaic system includes: a photovoltaic module 100, a fixing frame 120, a floating body 200 and a connecting block 300; the connecting block 300 is a hollow structure, including a first connecting surface 310 and a second connecting surface 320, a first mounting hole 330 is provided on the first connecting surface 310 for connecting the floating body 200, and a second mounting hole 340 is provided on the second connecting surface 320 for installing the photovoltaic module 100; the floating body 200 is fixed on the water surface, and a mounting surface 210 is provided away from the water surface, the mounting surface 210 is inclined to the water surface, and the mounting surface 210 is detachably connected to the first connecting surface 310; the photovoltaic module 100 is fixed on the fixing frame 120, and the fixing frame 120 is fixed on the second connecting surface 320.

[0043] Figure 3 This is a schematic diagram of the structure of a photovoltaic module provided in an embodiment of the present application. Figure 3 As shown, the photovoltaic assembly 100 is fixed on a fixing frame 120 , and the fixing frame 120 can provide support for the photovoltaic assembly 100 and enhance the structural strength of the photovoltaic assembly 100 .

[0044] In one embodiment, a mounting bracket 120 is provided with a panel fixing groove 121 at one end and a connecting plate 122 at the other end. The photovoltaic module 100 is fixed in the panel fixing groove 121, and the connecting plate 122 is removably connected to the second connecting surface 320. The panel fixing groove 121 is used to fix the photovoltaic module 100. One end of the photovoltaic module 100 can be inserted into the panel fixing groove 121 and tightly connected to the panel fixing groove 121. The connecting plate 122 is provided at the other end of the mounting bracket 120 and is removably connected to the connecting block 300, facilitating installation and maintenance.

[0045] In one embodiment, the solar panel fixing groove 121 can be set as a right-angle solar panel fixing groove 121 in the shape of a "C". The inner surface of the solar panel fixing groove 121 can be fully connected with the photovoltaic module 100. The connection between the solar panel fixing groove 121 and the photovoltaic module 100 is tightly connected without a gap to ensure the sealing performance around the photovoltaic module 100 and prevent water vapor from penetrating into the layers of the photovoltaic module 100.

[0046] Since the photovoltaic module 100 is usually a plate structure with right-angled ends, the panel fixing groove 121 can be set as a rectangular groove to ensure that each surface of the panel fixing groove 121 is fully fitted with the photovoltaic module 100, and the connection between the two has strong stability.

[0047] The connection plate 122 can be arranged in the same direction as the opening of the panel fixing slot 121, that is, the connection plate 122 is arranged parallel to the panel fixing slot 121, so that the photovoltaic module 100 is parallel to the connection plate 122. Because the connection plate 122 is fixed to the connection block 300, and the connection block 300 is fixed to the floating body 200, this embodiment can achieve that the photovoltaic module 100 is parallel to the mounting surface 210 of the floating body 200. The parallel arrangement of the photovoltaic module 100 and the mounting surface 210 can maintain a consistent distance between the photovoltaic module 100 and the mounting surface 210. The parallel arrangement of the photovoltaic module 100 and the mounting surface 210 can reduce resistance to wind and waves passing through, reduce the impact force, and thus improve the stability of the connection between the photovoltaic module 100 and the floating body 200.

[0048] like Figure 1 As shown, the float 200 is used to fix the photovoltaic module 100, and the surface of the float 200 can be used to fix the connecting block 300. The photovoltaic module 100 is fixed on the float 200 through the connecting block 300. The float 200, the connecting block 300 and the photovoltaic module 100 after fixed connection form a water surface photovoltaic system, which has the advantages of good stability and long service life.

[0049] Floating body 200 is positioned on the water surface, capable of floating on the surface and providing stable support for photovoltaic module 100. Floating body 200 can be made of corrosion-resistant materials, such as plastic. Floating body 200 can be fixed to the water surface using conventional fixing methods to ensure it is not carried away by currents. Typically, floating body 200 can float within a certain range near its fixed position without affecting photovoltaic power generation.

[0050] The surface of the floating body 200 that secures the photovoltaic modules 100 and the connecting block 300 is called the mounting surface 210. It should be understood that mounting surface 210 is the surface of the floating body 200 that faces away from the water surface. To facilitate solar absorption, mounting surface 210 can be tilted relative to the water surface, facing the sun. In one example, a steering mechanism and a light sensor can be installed on the floating body 200. The light sensor detects the direction of sunlight projection, and the steering mechanism drives the mounting surface 210 of the floating body 200 to adjust to the sunlight, further improving the conversion rate of light energy and enhancing the efficiency of photovoltaic power generation.

[0051] like Figure 2As shown, the connection block 300 can be configured as a hollow structure. The surface fixedly connected to the floating body 200 is called a first connection surface 310, and the surface opposite the first connection surface 310 is called a second connection surface 320. Specifically, the surface fixedly connected to the photovoltaic module 100 is called the second connection surface 320. A first mounting hole 330 is defined in the first connection surface 310, and a bolt is disposed in the first mounting hole 330. This bolt connection allows for a removable connection between the connection block 300 and the floating body 200. A second mounting hole 340 is defined in the second connection surface 320, and a bolt is disposed in the second mounting hole 340. This bolt connection allows for a removable connection between the connection block 300 and the photovoltaic module 100. It is understood that the bolts used to connect the connection block 300 to the floating body 200 and the photovoltaic module 100 can be of the same or different types, depending on the specific application.

[0052] In one embodiment, the first connection surface 310 may be provided with a plurality of first mounting holes 330 for connecting to the float 200. The second connection surface 320 may also be provided with a plurality of second mounting holes 340 for connecting to the photovoltaic module 100 to improve connection stability, which is not specifically limited in this application.

[0053] The first mounting hole 330 can be configured as an elongated hole to facilitate adjustment of the position of the connection block 300 fixed to the floating body 200. The second mounting hole 340 can be configured as a circular hole to facilitate insertion of a columnar connector such as a bolt.

[0054] This embodiment utilizes a photovoltaic module 100 with a mounting bracket 120, providing additional support for the module 100. This provides high overall strength and resists deformation. The hollow connecting block 300 offers high structural strength, allowing wind and waves to pass through the hollow structure, providing low resistance and effectively resisting the impact of wind and waves. The photovoltaic module 100 is secured to the floating body 200 via this connecting block 300, ensuring a stable connection and facilitating easy installation and maintenance.

[0055] Compared with the existing technology, the water surface photovoltaic system uses a photovoltaic module 100 with a fixing frame 120, which can enhance the structural strength of the photovoltaic module 100. The photovoltaic module 100 is then tightly connected to the floating body 200 via a connecting block 300. The hollow connecting block 300 has high structural strength, allowing wind and waves to pass through the hollow structure, with low resistance, and can withstand the impact of wind and waves. The photovoltaic module 100 is fixed to the floating body 200 via the connecting block 300, which can ensure the stability of the connection between the two. It is convenient to install and easy to maintain. This solves the technical problem in the existing technology that the connection between the water surface photovoltaic system and the floating body 200 is not stable, is easy to damage, and has a short service life.

[0056] like Figure 2As shown, the connecting block 300 can be configured as a rectangular cross-section, with the first connecting surface 310 and the second connecting surface 320 arranged parallel to each other. The mutually parallel first and second connecting surfaces 310, 320 can maintain a consistent distance between the photovoltaic module 100 and the mounting surface 210. The parallel arrangement of the photovoltaic module 100 and the mounting surface 210 reduces resistance to wind and waves, lowering the impact force, thereby improving the connection stability between the photovoltaic module 100 and the floating body 200. In one example, the area of ​​the first connecting surface 310 can be larger than that of the second connecting surface 320, and the projection of the second connecting surface 320 is located within the first connecting surface 310, further improving the supporting stability of the connecting block 300 for the photovoltaic module 100.

[0057] In one embodiment, there are two connecting blocks 300, each connected to opposite ends of the photovoltaic module 100 and secured to the mounting surface 210. By securing the two connecting blocks 300 to the floating body 200, the connection stability between the photovoltaic module 100 and the floating body 200 is effectively improved, preventing separation between the photovoltaic module 100 and the floating body 200, thereby extending the service life of the surface photovoltaic system and reducing maintenance costs. In other embodiments, the number of connecting blocks 300 can be increased depending on the application needs, and this embodiment does not impose any specific limitations.

[0058] In one embodiment, one or more connectors may be embedded in the mounting surface 210 of the floating body 200, with a portion of the connector located outside the floating body 200 for connection to the connecting block 300. The connectors may be bolts or other components with a connecting function. For example, a bolt extends from the inside of the floating body 200 through the mounting surface 210, with a portion of the bolt exposed on the surface of the mounting surface 210. The bolt can be inserted through the first mounting hole 330 of the connecting block 300 to secure the connecting block 300. Because the connecting block 300 is hollow, this connection method is more convenient to operate and reduces the difficulty of disassembly and maintenance.

[0059] like Figure 3 As shown, both ends of a photovoltaic module 100 can be fixed by symmetrically arranged fixing frames 120 , fixed to the connecting block 300 through the connecting plate 122 , and then fixed to the floating body 200 through the connecting block 300 .

[0060] Figure 4 This is a partial structural diagram of another water surface photovoltaic system provided in the embodiment of the present application. Figure 4 As shown, the fixing frame is in the shape of an "I" character. The "I"-shaped fixing frame 120 has two grooves, and the inner surfaces of the two grooves are provided with serrations; the edge of the photovoltaic component 100 is fixed in the groove and abuts against the serrations.

[0061] Specifically, the I-shaped bracket 120 is removably connected to the floating body 200 via bolts. The bolts are positioned at the center of the I-shaped bracket 120, avoiding the grooves. A through-hole is provided at the center of the I-shaped bracket 120 for the bolts. The I-shaped bracket 120 securely holds the photovoltaic module 100 in place through the grooves, ensuring a stable connection.

[0062] To ensure a more stable connection between the photovoltaic module 100 and the "I"-shaped mounting bracket 120, a serrated structure is provided on the inner surface of the groove of the "I"-shaped mounting bracket 120, covering the entire inner surface of the groove. The serrated structure can be made of a material with a certain degree of hardness and plasticity, such as rubber or plastic. The serrated structure is tightly connected to the surface of the photovoltaic module 100, and the serrated structure within the groove exerts a locking force on the surface of the photovoltaic module 100. This locking force is primarily generated by the force exerted by the opposing serrated teeth within the groove on the photovoltaic module 100.

[0063] In one embodiment, multiple I-shaped fixing brackets 120 can be provided to secure the photovoltaic module, with the multiple fixing brackets 120 being respectively secured to the multiple second connection surfaces 320. Using multiple I-shaped fixing brackets 120 to secure the photovoltaic module 100 provides a better securing effect, and the serrated structure provided on the inner surface of the groove secures the photovoltaic module 100, thereby preventing the solar panel from slipping.

[0064] In one example, the groove is a rectangular groove, so that the photovoltaic component 100 is in full surface contact with the groove, thereby improving connection stability and facilitating installation and maintenance.

[0065] Figure 5 This is a schematic diagram of the cross-sectional structure of a photovoltaic module provided in an embodiment of the present application. Figure 5 As shown, the photovoltaic module 100 includes a first light-transmitting layer 111 / a first film layer 112 / a cell layer 113 / a second film layer / a second light-transmitting layer 115 stacked in sequence; a side-sealing tape layer 116 is provided on the periphery of the photovoltaic module 100, and the side-sealing tape layer 116 seals the first light-transmitting layer 111 / a first film layer 112 / a cell layer 113 / a second film layer / a second light-transmitting layer 115 stacked in sequence.

[0066] Specifically, in this embodiment, photovoltaic module 100 is provided with a first adhesive film layer 112 and a second adhesive film layer 114 to enhance light absorption, thereby increasing light absorption. A first light-transmitting layer 111 and a second light-transmitting layer 115 are provided to protect the light-absorbing layer and the cell layer 113. An edge-sealing tape layer 116 is provided around the periphery of photovoltaic module 100 to seal the first light-transmitting layer 111, the first adhesive film layer 112, the cell layer 113, the second adhesive film layer, and the second light-transmitting layer 115, preventing corrosion caused by moisture penetrating into the various layers of photovoltaic module 100.

[0067] In one embodiment, the first light-transmitting layer 111 and the second light-transmitting layer 115 can be made of glass. Glass is a good medium for light propagation, and glass has a relatively suitable hardness to protect the light absorption enhancement layer and the cell layer 113. In addition, glass has good water resistance and corrosion resistance, and is a preferred light-transmitting medium for the surface photovoltaic module 100. The first adhesive film layer 112 and the second adhesive film layer 114 can be made of silicone. Silicone has good fluidity and high transparency, which can improve the absorption of light by the cell layer 113. The photovoltaic module 100 uses glass on both the top and bottom, which is called a double-glass structure. This structure can completely block water vapor on the top and bottom of the photovoltaic module 100. The edges are sealed with edge-sealing tape, which can block water vapor on all sides and effectively prevent water vapor from penetrating into the layers of the photovoltaic module 100 and causing corrosion.

[0068] In one embodiment, the first light-transmitting layer 111 and the second light-transmitting layer 115 have the same thickness and are symmetrically arranged. The first adhesive film layer 112 and the second adhesive film layer 114 also have the same thickness and are symmetrically arranged. The battery layer 113 is arranged in the first adhesive film layer 112 and the second adhesive film layer 114 for absorbing, storing light energy and / or converting it into electrical energy.

[0069] Figure 6 This is a schematic diagram of the cross-sectional structure of an edge-sealing tape layer provided in an embodiment of the present application. Figure 6 As shown, the edge-sealing tape layer 116 includes a weather-resistant layer 116 a , a water-blocking layer 116 b , and an adhesive layer 116 c stacked in sequence, and the adhesive layer 116 c covers the periphery of the photovoltaic module 100 .

[0070] In this embodiment, the edge-sealing tape layer 116 can be composed of a weather-resistant layer 116a, a water-blocking layer 116b, and an adhesive layer 116c. The weather-resistant layer 116a can effectively prevent the aging of the water-blocking layer 116b and the adhesive layer 116c caused by ultraviolet radiation, thereby preventing the edge-sealing tape layer 116 from falling off due to the aging of the water-blocking layer 116b and the adhesive layer 116c. This improves the weather resistance of the edge-sealing tape layer 116 and further increases the service life of the edge-sealing tape layer 116. The provision of the water-blocking layer 116b can give the edge-sealing tape layer 116 better water-blocking properties and give the edge-sealing tape layer 116 a certain plasticity, making it easier for the edge-sealing tape layer 116 to seal solar panels of different thicknesses, and having strong practicality. The adhesive layer 116c is used to bond solar panels, and the installation method is simple and easy to operate.

[0071] In one example, the weather-resistant layer 116a, the water-blocking layer 116b, and the adhesive layer 116c are stacked in sequence.

[0072] In one embodiment, the aluminum foil-containing edge-sealing tape structure comprises a three-layer composite: a weather-resistant layer 116a, a water-blocking layer 116b, and an adhesive layer 116c. The total thickness of these three layers ranges from 100 to 500 microns. The weather-resistant layer 116a, located near the panel fixing slot 121, provides weather resistance and has a thickness of between 25 and 50 microns. The water-blocking layer 116b, located in the middle, provides support and water-blocking functions and has a thickness of between 50 and 450 microns. The adhesive layer 116c, located away from the panel fixing slot 121, provides bonding and has a thickness of between 25 and 50 microns.

[0073] The weather-resistant layer 116a is a fluorine-containing coating with good weather resistance. The water-blocking layer 116b can be composed of an aluminum foil coating containing aluminum to ensure that it has good water-blocking properties. The adhesive layer 116c is composed of glue with good adhesive properties.

[0074] like Figure 3 As shown, the panel fixing groove 121 can completely cover the edge-sealing tape layer 116. This completely covering of the edge-sealing tape layer 116 by the panel fixing groove 121 can protect the edge-sealing tape layer 116. This can prevent the edge-sealing tape layer 116 from aging and falling off, thereby increasing the service life of the edge-sealing tape layer 116. Furthermore, it can improve the sealing performance of the photovoltaic module 100.

[0075] In one embodiment, the panel fixing groove 121 is connected to the fixing frame 120 of the photovoltaic module 100, and the connection method can be set to a detachable connection form for easy maintenance. One or more bolts can be set at the connection between the panel fixing groove 121 and the fixing frame 120 to achieve a detachable connection between the panel fixing groove 121 and the fixing frame 120. Specifically, one or more countersunk holes are set on the panel fixing groove 121 for passing the bolts. Among them, the one or more countersunk holes are specifically set at the connection between the panel fixing groove 121 and the fixing frame 120. Before installing the panel fixing groove 121, one or more bolts can be passed through the one or more countersunk holes, and the nut part of the bolt is in the countersunk hole so that the bolt does not protrude from the inner surface of the panel fixing groove 121. The purpose of doing this is to prevent the bolts from interfering with the photovoltaic module 100 to be installed in the panel fixing groove 121 and the panel fixing groove 121, resulting in damage to the photovoltaic module 100 or the photovoltaic module 100 cannot be installed in the panel fixing groove 121.

[0076] In another embodiment, one or more threaded holes are provided on the panel fixing groove 121 for fixing bolts. The one or more threaded holes are specifically provided at the connection between the panel fixing groove 121 and the fixing frame 120. Before installing the panel fixing groove 121, one or more bolts can be fixed in the one or more threaded holes. The bolts are installed from the outer surface of the panel fixing groove 121. After installation, the screw rods of the bolts are located in the threaded holes so that the screw rods do not protrude from the inner surface of the panel fixing groove 121. This is to prevent the bolts from interfering with the photovoltaic module 100 to be installed in the panel fixing groove 121 and the panel fixing groove 121, thereby causing damage to the photovoltaic module 100 or the inability to install the photovoltaic module 100 in the panel fixing groove 121.

[0077] The above two embodiments can be configured according to actual conditions.

[0078] In the embodiment of the present application, the first light-transmitting layer 111 and the second light-transmitting layer 115 are made of glass, the first adhesive film layer 112 and the second adhesive film layer 114 are made of silicone, and the cell layer 113 is made of cells. The method for manufacturing a water surface photovoltaic system can be briefly summarized as follows: first, affix aluminum-containing edge-sealing tape to the four sides of the lower glass, with the aluminum-containing edge-sealing tape being higher than the lower glass; second, pour in silicone. Silicone is liquid and has a certain fluidity. It can flow at room temperature or be heated to flow. After the silicone is leveled, the cells are laid on top; then, a second layer of silicone is poured in again using the same method as above. After the silicone is leveled, the upper glass is covered. At this time, the aluminum-containing edge-sealing tape is higher than the upper glass. The portion of the aluminum-containing edge-sealing tape that is higher than the upper glass is affixed to the four sides of the upper glass; finally, the cell panel fixing grooves 121 are installed around the assembly.

[0079] In addition, the present application also provides a water surface photovoltaic power generation device, including multiple water surface photovoltaic systems as described above, and the multiple water surface photovoltaic systems are arranged in an array and electrically connected to each other.

[0080] Typically, the needs of photovoltaic power generation can only be met by deploying a large number of water surface photovoltaic systems. In this embodiment, multiple water surface photovoltaic systems are deployed over a large area on the water surface to achieve photovoltaic power generation. The structural configuration of the water surface photovoltaic system is described above and will not be elaborated on in this embodiment. Multiple water surface photovoltaic systems can be arranged and configured according to the application scenario, and multiple water surface photovoltaic systems can be connected using commonly used connection methods to ensure the overall stability of the water surface photovoltaic power generation device composed of multiple water surface photovoltaic systems. Multiple water surface photovoltaic systems are electrically connected to each other, allowing the energy stored in the cell layers to be aggregated and centrally converted and processed.

[0081] Compared with the prior art, the power generation device provided by this embodiment adopts a water surface photovoltaic system with photovoltaic modules with fixed frames. The fixed frames can enhance the structural strength of the photovoltaic modules and prevent them from deformation. The photovoltaic modules are then tightly connected to the floating body through connecting blocks. The hollow connecting blocks have high structural strength, and wind and waves can pass through the hollow structure, with low resistance, and can withstand the impact of wind and waves. The photovoltaic modules are fixed to the floating body through the connecting blocks, which can ensure the stability of the connection between the two. It is convenient to install and easy to maintain. It can solve the technical problems in the prior art that the connection between the water surface photovoltaic system and the floating body does not need to be stable, is easy to damage, has a short service life, and water vapor penetration has a corrosive effect on the photovoltaic modules.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and do not limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A water surface photovoltaic system, characterized in that: include: Photovoltaic panels, mounting frames, floats and connection blocks; The connecting block is a hollow structure, including a first connecting surface and a second connecting surface. A first mounting hole is provided on the first connecting surface for connecting to the floating body, and a second mounting hole is provided on the second connecting surface for mounting the photovoltaic module. The floating body is provided with a mounting surface, and the mounting surface is detachably connected to the first connecting surface; The photovoltaic assembly is fixed on the fixing frame, and the fixing frame is fixed on the second connecting surface.

2. The water surface photovoltaic system according to claim 1, characterized in that: The mounting surface is arranged obliquely to the water surface; The first connecting surface and the second connecting surface are arranged in parallel.

3. The water surface photovoltaic system according to claim 1, characterized in that: One end of the fixing frame is provided with a battery panel fixing groove, and the other end is provided with a connecting plate; The photovoltaic assembly is fixed in the solar panel fixing groove, and the connecting plate is detachably connected to the second connecting surface.

4. The water surface photovoltaic system according to claim 1, characterized in that: The fixing frame is in the shape of an "I" character, and the fixing frame in the "I" character has two grooves, and the inner surfaces of the two grooves are provided with saw teeth; The edge of the photovoltaic component is fixed in the groove and abuts against the serrations.

5. The water surface photovoltaic system according to claim 1, characterized in that: The first mounting hole is a long hole.

6. The water surface photovoltaic system according to claim 1, characterized in that: A connecting piece is pre-buried in the floating body, and a portion of the connecting piece is located outside the floating body and is used for connecting the connecting block.

7. The water surface photovoltaic system according to any one of claims 1 to 6, characterized in that: The photovoltaic module comprises a first light-transmitting layer / a first adhesive film layer / a cell layer / a second adhesive film layer / a second light-transmitting layer stacked in sequence; An edge-sealing tape layer is provided on the periphery of the photovoltaic module, and the edge-sealing tape layer seals the first light-transmitting layer / first adhesive film layer / cell layer / second adhesive film layer / second light-transmitting layer which are stacked in sequence.

8. The water surface photovoltaic system according to claim 7, characterized in that: The edge-sealing tape layer includes a weather-resistant layer / a water-blocking layer / an adhesive layer stacked in sequence, and the adhesive layer covers the periphery of the photovoltaic module.

9. The water surface photovoltaic system according to claim 8, characterized in that: The thickness of the weather-resistant layer is 25 to 50 microns, the thickness of the water-blocking layer is 50 to 450 microns, and the thickness of the adhesive layer is 25 to 50 microns.

10. The water surface photovoltaic system according to claim 9, characterized in that: The weather-resistant layer is a fluorine-containing coating, the water-blocking layer is an aluminum foil layer, and the bonding layer is a glue layer.

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