Photovoltaic tile assembly, photovoltaic system, and photovoltaic building roof

Abstract

Disclosed are a photovoltaic tile assembly (100), a photovoltaic system (200), and a photovoltaic building roof (300). The photovoltaic tile assembly (100) comprises a bottom plate (110) and a plurality of photovoltaic tile branch modules (120), wherein the plurality of photovoltaic tile branch modules (120) are arranged on the bottom plate (110); each photovoltaic tile branch module (120) comprises a plurality of photovoltaic tiles (122) and a plurality of wiring portions (124); the plurality of wiring portions (124) are connected between the plurality of photovoltaic tiles (122), so that the plurality of photovoltaic tiles (122) are electrically connected; the plurality of photovoltaic tile branch modules (120) are connected in series, or the plurality of photovoltaic tile branch modules (120) are connected in parallel.

Description

Photovoltaic tile assemblies, photovoltaic systems and photovoltaic building roofs

[0001] Priority information

[0002] This application claims priority and benefits of patent application No. 202420066412.4 filed with the State Intellectual Property Office of China on January 9, 2024, and the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the field of solar photovoltaic technology, and in particular to a photovoltaic tile assembly, a photovoltaic system, and a photovoltaic building roof. Background Art

[0004] At present, the combined application of photovoltaic products and roofs mainly includes two forms: attached solar photovoltaic power generation system (Building attached photovoltaics, BAPV) and embedded solar photovoltaic power generation system (Building Integrated Photovoltaics, BIPV). Attached BAPV is to install standard photovoltaic components on the roof through ribs, brackets, etc.; embedded BIPV replaces traditional roof tiles with photovoltaic tiles. Photovoltaic tiles are part of the building. Whether it is attached BAPV or embedded BIPV, the installation on the roof is complicated due to the high installation cost and low installation efficiency. Summary of the Invention

[0005] The embodiments of the present application provide a photovoltaic tile assembly, a photovoltaic system, and a photovoltaic building roof to solve at least one of the above-mentioned technical problems.

[0006] To this end, the first aspect of the present application provides a photovoltaic tile assembly.

[0007] A second aspect of the present application provides a photovoltaic system.

[0008] A third aspect of the present application proposes a photovoltaic building roof.

[0009] In view of this, the present application provides a photovoltaic tile assembly, including: a base plate; a plurality of photovoltaic tile branch modules, the plurality of photovoltaic tile branch modules are arranged on the base plate; the photovoltaic tile branch modules include a plurality of photovoltaic tiles and a plurality of wiring parts, the plurality of wiring parts are connected between the plurality of photovoltaic tiles to electrically connect the plurality of photovoltaic tiles; wherein the plurality of photovoltaic tile branch modules are connected in series; or the plurality of photovoltaic tile branch modules are connected in parallel.

[0010] The photovoltaic tile assembly provided in the present application includes a base plate and a plurality of photovoltaic tile branch modules. Among them, the plurality of photovoltaic tile branch modules are mounted on the base plate to enable the rapid installation and fixation of the plurality of photovoltaic tile branch modules. The plurality of photovoltaic tile branch modules include a plurality of photovoltaic tiles and a plurality of wiring parts, and the plurality of wiring parts are connected between the plurality of photovoltaic tiles to electrically connect the plurality of photovoltaic tiles, that is, the plurality of photovoltaic tiles are connected in series through the plurality of wiring parts to form a series photovoltaic tile branch module. By connecting a plurality of photovoltaic tiles in series to form a photovoltaic tile branch module, when installing the photovoltaic tiles, a photovoltaic tile branch module can be installed as a whole module, thereby improving the installation efficiency.

[0011] Specifically, a plurality of photovoltaic tile branch modules can be set up to be connected in series, that is, when a plurality of photovoltaic tile branch modules are connected in series for installation, a plurality of photovoltaic tile branch modules are connected in series with each other to form a larger series installation module, and installed on the base plate. It can be understood that when the voltage at both ends of a photovoltaic tile branch module allows, a photovoltaic tile branch module can be installed on the base plate. In this way, the photovoltaic tiles can be installed faster and the installation efficiency can be improved.

[0012] Specifically, multiple photovoltaic tile branch modules can be set up to be connected in parallel, that is, when multiple photovoltaic tile branch modules are connected in parallel for installation, multiple photovoltaic tile branch modules are connected in parallel with each other to form a larger parallel installation module, and installed on the base plate. It can be understood that when the voltage across a photovoltaic tile branch module reaches the maximum value, that is, a photovoltaic tile branch module does not allow more photovoltaic tiles to be connected in series, other photovoltaic tile branch modules can be connected in parallel to other photovoltaic tile branch modules, that is, multiple photovoltaic tile branch modules are set in parallel, and multiple photovoltaic tile branch modules set in parallel can be installed on the base plate as a whole module. In this way, more photovoltaic tiles can be installed on the base plate at one time, achieving faster installation of photovoltaic tiles and improving installation efficiency.

[0013] The photovoltaic tile assembly according to the above technical solution of this application may also have the following additional technical features:

[0014] In some technical solutions, optionally, the photovoltaic tile has a planar structure or a curved structure.

[0015] In this technical solution, by setting the shape of the photovoltaic tiles to a flat structure or a curved structure, the flat photovoltaic tiles can absorb sunlight more evenly and have a wider range of uses. The curved photovoltaic tiles use heterojunction cells on the curved surface, which has a low radius of curvature. The curved tiles have a large curvature and a wide range, which can better utilize solar energy and improve the power generation efficiency of the photovoltaic tiles. Moreover, the curved photovoltaic tiles are highly adaptable and can meet the needs of some special occasions, such as field facilities and scenes with terrain restrictions. By setting the shape of the photovoltaic tiles to a flat structure or a curved structure, the scope of use of the photovoltaic tiles is expanded.

[0016] In some technical solutions, optionally, the voltage across each photovoltaic tile branch module is less than or equal to 80V.

[0017] In this technical solution, by setting the voltage across each photovoltaic tile branch module to be less than or equal to 80V, the energy consumption of the photovoltaic tiles can be reduced and their energy efficiency ratio can be improved.

[0018] In some technical solutions, optionally, the photovoltaic tile assembly also includes: an electrically controlled switch, which is arranged in the photovoltaic tile branch module; and / or the electrically controlled switch is arranged between photovoltaic tile branch modules connected in series; and / or the electrically controlled switch is arranged between photovoltaic tile branch modules connected in parallel.

[0019] In this technical solution, the photovoltaic tile assembly also includes an electronically controlled switch. The electronically controlled switch is arranged in the photovoltaic tile branch module; and / or the electronically controlled switch is arranged between photovoltaic tile branch modules connected in series; and / or the electronically controlled switch is arranged between photovoltaic tile branch modules connected in parallel. By arranging the electronically controlled switch between different photovoltaic tiles, or between photovoltaic tile branch modules connected in series, or between photovoltaic tile branch modules connected in parallel, an intelligent shutdown function can be provided, and the output voltage and current of the photovoltaic tile branch module or photovoltaic tile array can be intelligently controlled to ensure the stable operation of the photovoltaic system. The battery pack and solar cell are protected from damage during the charging, discharging and load management processes. Effective control of the photovoltaic system is achieved, and a power-off operation is performed when the photovoltaic system fails or the power is interrupted to ensure the safety of the system operation and improve the safety and reliability of the use of the photovoltaic tile assembly.

[0020] In some technical solutions, optionally, there are multiple electrically controlled switches.

[0021] In this technical solution, multiple electronically controlled switches are used. By configuring these switches, the photovoltaic circuit can be divided into multiple independent control segments, enabling independent control of each segment—this is known as segmented control. Each electronically controlled switch has a protective function, protecting the circuit from damage such as overvoltage and overcurrent, ensuring safe operation. This configuration allows for flexible control of the photovoltaic circuit, enabling customized configuration and control based on actual needs.

[0022] In some technical solutions, optionally, the photovoltaic tile includes: a first cover plate, used to protect the internal components of the photovoltaic tile; a first adhesive film, provided on the first cover plate, used to connect the first cover plate; a photovoltaic cell, provided on the first adhesive film; a second adhesive film, provided on the photovoltaic cell, used to connect the photovoltaic cell to the first cover plate; a second cover plate, covered with the second adhesive film; wherein the first cover plate, the first adhesive film, the photovoltaic cell, the second adhesive film and the second cover plate are stacked.

[0023] In this technical solution, the photovoltaic tile includes a first cover plate, a first adhesive film, a photovoltaic cell, a second adhesive film, and a second cover plate. The first cover plate is used to protect the internal components of the photovoltaic tile; the first adhesive film is disposed on the first cover plate and is used to connect the first cover plate; the photovoltaic cell is disposed on the first adhesive film, and the second adhesive film is disposed on the photovoltaic cell and is used to connect the photovoltaic cell to the first cover plate; the second cover plate is disposed on the second adhesive film, and the first and second cover plates encapsulate the photovoltaic cell within the cover body to protect the photovoltaic cell. The first and second adhesive films bond the first cover plate, photovoltaic cell, and second cover plate together, thereby improving the overall bonding strength of the photovoltaic tile, bonding the entire photovoltaic tile together, and enhancing the overall firmness and stability of the photovoltaic tile.

[0024] In some technical solutions, optionally, the photovoltaic tile further includes: a wire layer, disposed between the photovoltaic cell and the second adhesive film, the wire layer being electrically connected to the photovoltaic cell.

[0025] In this technical solution, the photovoltaic tile further includes a conductor layer, which is disposed between the photovoltaic cell and the second adhesive film to achieve electrical connection between the conductor layer and the photovoltaic cell.

[0026] In some technical solutions, optionally, the photovoltaic cell is a solar cell or a stacked cell.

[0027] In this technical solution, by setting the photovoltaic cells as solar cells or stacked cells, energy waste can be reduced and the production capacity of the power system can be increased.

[0028] According to the second aspect of the present application, a photovoltaic system is also proposed, comprising: a photovoltaic tile assembly as in any one of the above-mentioned schemes; a lap joint portion, arranged on the peripheral side of the base plate, and connecting two adjacent photovoltaic tile assemblies through the lap joint portion; and a cable portion, which is connected between two adjacent photovoltaic tile assemblies.

[0029] The photovoltaic system provided in this application includes the photovoltaic tile assembly of any of the above technical solutions, and therefore has all the beneficial effects of the photovoltaic tile assembly, which will not be repeated here.

[0030] In addition, the photovoltaic system also includes a lap joint and a cable portion. The lap joint is provided on the circumferential side of the base plate. Providing the lap joint on the circumferential side of the base plate allows for faster and more efficient connection between adjacent base plates, thereby increasing the efficiency of assembly between photovoltaic tile assemblies, saving assembly time and cost, improving the installation efficiency of the photovoltaic system, and enhancing the overall performance and reliability of the photovoltaic system. Furthermore, by connecting the cable portion between two adjacent photovoltaic tile assemblies, the adjacent photovoltaic tile assemblies can be electrically connected, allowing the electrical energy generated by the cells in the photovoltaic tiles to be channeled to the outside through the cable portion, thereby increasing the power system's production capacity.

[0031] According to a third aspect of the present application, a photovoltaic building roof is provided, comprising: a photovoltaic system as described above; a roof connected to the photovoltaic system; and roof accessories connected between the photovoltaic system and the roof for securing the photovoltaic system and the roof.

[0032] The photovoltaic building roof provided in this application includes the photovoltaic system of the above-mentioned technical solution, and therefore has all the beneficial effects of the photovoltaic system, which will not be described in detail here.

[0033] In addition, the roof of a photovoltaic building also includes a roof and roof accessories. The roof is connected to the photovoltaic system, and the roof accessories are connected between the photovoltaic system and the roof. They are used to fix the photovoltaic system and the roof. The roof accessories can firmly fix the photovoltaic system to the roof, thereby increasing the stability of the entire photovoltaic system. In addition, the entire photovoltaic system is assembled on the ground and then installed on the roof, which can effectively improve installation efficiency and reduce installation costs. In other words, small-sized unit photovoltaic tiles are connected in series in the form of modules, installed on the ground on the base plate, and equipped with power electronic controls. The installation is convenient and efficient, reducing high-altitude work on the roof; by installing electric control switches, namely power electronic controls, in the photovoltaic system, the photovoltaic tiles installed on the roof avoid high-voltage direct current, which is safer and can ensure maximum power generation.

[0034] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0036] FIG1 is a schematic diagram of an exploded structure of a photovoltaic tile assembly according to one embodiment of the present application;

[0037] FIG2 is a schematic structural diagram of a photovoltaic tile assembly according to an embodiment of the present application;

[0038] FIG3 is a schematic diagram of an exploded structure of a photovoltaic tile assembly according to another embodiment of the present application;

[0039] FIG4 is a schematic structural diagram of a photovoltaic tile assembly according to another embodiment of the present application;

[0040] FIG5 is a schematic diagram of the structure of the photovoltaic tile in the photovoltaic tile assembly of the embodiment shown in FIG1 ;

[0041] FIG6 is a schematic structural diagram of a photovoltaic building roof according to an embodiment of the present application.

[0042] Among them, the correspondence between the figure marks and component names in Figures 1 to 6 is: 100 photovoltaic tile assembly, 110 base plate, 120 photovoltaic tile branch module, 122 photovoltaic tile, 124 wiring part, 130 electric control switch, 140 first cover plate, 142 first adhesive film, 144 photovoltaic cell, 146 second adhesive film, 148 second cover plate, 150 wire layer, 200 photovoltaic system, 210 overlapping part, 220 cable part, 300 photovoltaic building roof, 310 roof, 320 roof accessories. DETAILED DESCRIPTION

[0043] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0044] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. The embodiments of the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the embodiments of the present application provide examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0045] The following describes a photovoltaic tile assembly 100 , a photovoltaic system 200 , and a photovoltaic building roof 300 provided according to some embodiments of the present application with reference to FIG. 1 to FIG. 6 .

[0046] As shown in Figures 1 to 6, Figure 1 is an exploded structural diagram of a photovoltaic tile assembly according to one embodiment of the present application; Figure 2 is a structural diagram of a photovoltaic tile assembly according to one embodiment of the present application; Figure 3 is an exploded structural diagram of a photovoltaic tile assembly according to another embodiment of the present application; Figure 4 is a structural diagram of a photovoltaic tile assembly according to another embodiment of the present application; Figure 5 is a structural diagram of photovoltaic tiles in the photovoltaic tile assembly according to the embodiment of Figure 1; and Figure 6 is a structural diagram of a photovoltaic building roof according to one embodiment of the present application. A photovoltaic tile assembly 100 provided in one embodiment of the present application includes: a base plate 110; a plurality of photovoltaic tile branch modules 120, the plurality of photovoltaic tile branch modules 120 being disposed on the base plate 110; the photovoltaic tile branch modules 120 including a plurality of photovoltaic tiles 122 and a plurality of connection portions 124, the plurality of connection portions 124 being connected between the plurality of photovoltaic tiles 122 to electrically connect the plurality of photovoltaic tiles 122; wherein the plurality of photovoltaic tile branch modules 120 are connected in series; or the plurality of photovoltaic tile branch modules 120 are connected in parallel.

[0047] Specifically, as shown in Figures 1 to 4, the photovoltaic tile assembly 100 includes a base plate 110 and a plurality of photovoltaic tile branch modules 120. The plurality of photovoltaic tile branch modules 120 are mounted on the base plate 110 to enable quick installation and fixation of the plurality of photovoltaic tile branch modules 120. The plurality of photovoltaic tile branch modules 120 include a plurality of photovoltaic tiles 122 and a plurality of wiring portions 124. The plurality of wiring portions 124 are connected between the plurality of photovoltaic tiles 122 to electrically connect the plurality of photovoltaic tiles 122. That is, the plurality of photovoltaic tiles 122 are connected in series through the plurality of wiring portions 124 to form a series photovoltaic tile branch module 120. By connecting the plurality of photovoltaic tiles 122 in series to form a photovoltaic tile branch module 120, when installing the photovoltaic tiles 122, the photovoltaic tile branch module 120 can be installed as a whole module, thereby improving installation efficiency.

[0048] Specifically, a plurality of photovoltaic tile branch modules 120 can be set to be connected in series, that is, when a plurality of photovoltaic tile branch modules 120 are connected in series for installation, a plurality of photovoltaic tile branch modules 120 are connected in series with each other to form a larger series installation module, and installed on the base plate 110. It can be understood that when the voltage at both ends of a photovoltaic tile branch module 120 allows, a photovoltaic tile branch module 120 can be installed on the base plate 110. In this way, the photovoltaic tiles 122 can be installed more quickly, thereby improving the installation efficiency.

[0049] Specifically, multiple photovoltaic tile branch modules 120 can be set up to be connected in parallel, that is, when multiple photovoltaic tile branch modules 120 are connected in parallel for installation, multiple photovoltaic tile branch modules 120 are connected in parallel to each other to form a larger parallel installation module, and installed on the base plate 110. It can be understood that when the voltage across a photovoltaic tile branch module 120 reaches a maximum value, that is, a photovoltaic tile branch module 120 does not allow more photovoltaic tiles 122 to be connected in series, other photovoltaic tile branch modules 120 can be connected in parallel to other photovoltaic tile branch modules 120, that is, multiple photovoltaic tile branch modules 120 are set in parallel, and multiple photovoltaic tile branch modules 120 set in parallel can be installed on the base plate 110 as a whole module. In this way, more photovoltaic tiles 122 can be installed on the base plate 110 at one time, achieving faster installation of photovoltaic tiles 122 and improving installation efficiency.

[0050] As shown in Figures 2 and 4, by connecting the photovoltaic tiles 122 in series using the connection portion 124 to form a photovoltaic tile branch module 120, multiple photovoltaic tiles 122 are connected in series to form an easy-to-install module. When the voltage permits, multiple photovoltaic tile branch modules 120 are connected in series or in parallel to form a larger installation module installed on the base plate 110, thereby improving installation efficiency and reducing installation costs. It can be understood that the present application realizes the assembly of the photovoltaic system 200 by connecting the photovoltaic tiles 122 in series or in parallel to form a modular component, and installing it on the base plate 110 by assembling the modular components. The entire assembly process is completed on the ground, saving time and effort, improving installation efficiency, and reducing installation and maintenance costs.

[0051] In specific applications, the base plate 110 can be configured as a lightweight thin steel plate, resin plate, plastic plate, fiberglass plate, or composite wood plate, which can be selected according to the specific usage and is not listed here. The base plate 110 is a flat surface with structural parts for overlapping around it. While providing the function of a mounting base, the base plate 110 also has a waterproof function. At the same time, the base plate 110 can be configured in a variety of sizes. The size of the base plate 110 can be flexibly matched according to the area of ​​the roof 310 or the number of photovoltaic tile branch modules 120 to be installed, so as to cover the entire roof 310 or a portion thereof.

[0052] In some embodiments, optionally, as shown in FIG. 2 and FIG. 4 , the photovoltaic tile 122 is in the shape of a planar structure or a curved structure.

[0053] Specifically, by setting the shape of the photovoltaic tile 122 to a flat structure or a curved structure, the photovoltaic tile 122 with a flat structure can absorb sunlight more evenly and be used more widely. The photovoltaic tile 122 with a curved structure uses heterojunction cells in the arc portion, which has a low radius of curvature, a large curvature of the curved tile, and a wide range, which can better utilize solar energy and improve the power generation efficiency of the photovoltaic tile 122. Moreover, the photovoltaic tile 122 with a curved structure has strong adaptability and can meet some special occasions, such as outdoor facilities and scenes with terrain restrictions. By setting the shape of the photovoltaic tile 122 to a flat structure or a curved structure, the scope of use of the photovoltaic tile 122 is expanded.

[0054] Specifically, as shown in Figures 1 and 2, the planar photovoltaic tile 122 can absorb sunlight more evenly without the "barrel effect." This type of photovoltaic tile 122 is widely used and suitable for various environments.

[0055] As shown in Figures 3 and 4, the curved photovoltaic tile 122 has some special technical effects. For example, the use of heterojunction cells in the curved surface reduces the minimum curvature radius of the curved surface of the curved tile to approximately 50 mm, allowing the curved tile to have a larger curvature and a wider curvature range. This structure can better utilize solar energy and improve the power generation efficiency of the photovoltaic tile 122. In addition, both flat and curved photovoltaic tiles 122 have advantages such as good low-light performance, minimal shadow occlusion, minimal hot spot effect, and strong load-bearing capacity, which can further improve the power generation efficiency of the photovoltaic tile 122.

[0056] In specific applications, different photovoltaic tile structures have their own unique technical effects and advantages. The corresponding flat photovoltaic tiles or curved photovoltaic tiles can be selected according to the application requirements and environmental conditions.

[0057] In some embodiments, optionally, the voltage across each photovoltaic tile branch module 120 is less than or equal to 80V.

[0058] Specifically, by setting the voltage across each photovoltaic tile branch module 120 to be less than or equal to 80V, the energy consumption of the photovoltaic tile 122 can be reduced and its energy efficiency ratio can be improved.

[0059] Specifically, by limiting the voltage across the photovoltaic tile branch module 120 to 80V or less, excessive voltage can be avoided to prevent harm to people and equipment, ensuring safe use. Furthermore, an appropriate voltage range helps improve the power generation efficiency of the photovoltaic tile 122, enabling stable operation in various environments.

[0060] Furthermore, by limiting the voltage across the PV tile branch module 120 to 80V or below, the energy consumption of the PV tiles 122 can be reduced, improving their energy efficiency. Furthermore, maintaining an appropriate voltage range helps extend the service life of the PV tiles 122, reducing the frequency of maintenance and replacement. By controlling the voltage across the PV tile branch module 120 within a certain range, the entire PV system 200 can be easily managed and monitored, ensuring its normal operation.

[0061] Specifically, in the process of manufacturing the photovoltaic tile branch module 120, the photovoltaic tiles 122 are connected in series using the wiring part 124 to form a photovoltaic tile branch module 120, and the voltage across each photovoltaic tile branch module 120 is less than or equal to 80V. It can be understood that when multiple photovoltaic tile branch modules 120 are connected in series or in parallel to form a larger installation module, the voltage across the installation module must also be less than or equal to 80V. In this way, it is possible to avoid excessive voltage causing harm to the human body and equipment, ensure safe use, reduce the energy consumption of the photovoltaic tiles 122, and improve its energy efficiency ratio.

[0062] In a specific application, the voltage across the photovoltaic tile branch module 120 is set to 30V, 40V, 50V, 60V, 65V or 70V, which can be determined based on the actual voltage of a single photovoltaic tile 122 used.

[0063] In some embodiments, optionally, as shown in Figures 2 and 4, the photovoltaic tile assembly 100 also includes: an electronically controlled switch 130, the electronically controlled switch 130 is arranged in the photovoltaic tile branch module 120; and / or the electronically controlled switch 130 is arranged between the photovoltaic tile branch modules 120 connected in series; and / or the electronically controlled switch 130 is arranged between the photovoltaic tile branch modules 120 connected in parallel.

[0064] Specifically, the photovoltaic tile assembly 100 also includes an electronically controlled switch 130. The electronically controlled switch 130 is disposed within the photovoltaic tile branch module 120; and / or between photovoltaic tile branch modules 120 connected in series; and / or between photovoltaic tile branch modules 120 connected in parallel. By disposing the electronically controlled switch 130 between different photovoltaic tiles 122, or between photovoltaic tile branch modules 120 connected in series, or between photovoltaic tile branch modules 120 connected in parallel, an intelligent shutdown function is provided, intelligently controlling the output voltage and current of the photovoltaic tile branch modules 120 or photovoltaic tile 122 array, ensuring stable operation of the photovoltaic system 200. This protects the battery pack and solar cells from damage during charging, discharging, and load management. This allows for effective control of the photovoltaic system 200, enabling power outages in the event of a system failure or power outage, ensuring safe system operation and enhancing the safety and reliability of the photovoltaic tile assembly 100.

[0065] Specifically, by setting the electronically controlled switch 130 between different photovoltaic tiles 122, or between photovoltaic tile branch modules 120 connected in series, or between photovoltaic tile branch modules 120 connected in parallel, and by controlling the output voltage and current of the photovoltaic tile branch module 120 or the photovoltaic tile 122 array, the battery pack and solar cells can be protected from damage such as overvoltage and overcurrent, thereby extending their service life. Through the electronically controlled switch 130, effective control of the photovoltaic system 200 can be achieved, including charging, discharging, load management, etc., thereby improving the efficiency and stability of the photovoltaic system 200 and achieving effective control. When the photovoltaic system 200 fails or the power is interrupted, the electronically controlled switch 130 can quickly cut off the output circuit to avoid faults such as circuit short circuit and overvoltage, thereby ensuring the safety of the system operation. Through the electronically controlled switch 130, the photovoltaic system 200 can be conveniently maintained and managed, including troubleshooting, battery replacement, etc., thereby improving work efficiency and convenience.

[0066] In specific applications, the electric switch 130 can be specifically set as a power electronic control, which can provide an intelligent shutdown function and, optionally, a power optimization function and an inversion function of maximum power tracking. By setting up the power electronic control, high-voltage direct current can be avoided in the photovoltaic tiles 122 installed on the roof 310, making the entire photovoltaic tile assembly 100 safer to use and ensuring that the power generation of the photovoltaic tile assembly 100 is maximized.

[0067] In some embodiments, optionally, as shown in FIG. 2 and FIG. 4 , there are multiple electronically controlled switches 130 .

[0068] Specifically, multiple electronically controlled switches 130 are provided. By configuring multiple electronically controlled switches 130, the photovoltaic circuit can be divided into multiple independent control segments, enabling independent control of each segment, i.e., segmented control. Each electronically controlled switch 130 has a protection function that protects the circuit from damage such as overvoltage and overcurrent, ensuring safe operation of the circuit. By configuring multiple electronically controlled switches 130, flexible control of the photovoltaic circuit can be achieved, allowing for different configurations and controls based on actual needs.

[0069] Specifically, multiple electronically controlled switches 130 are provided. By configuring multiple electronically controlled switches 130, precise control of the photovoltaic circuit can be achieved, improving the power generation efficiency and stability of the photovoltaic system 200. Furthermore, configuring multiple electronically controlled switches 130 facilitates maintenance and management of the photovoltaic circuit, including troubleshooting and battery replacement, thereby improving work efficiency and convenience. By configuring multiple electronically controlled switches 130, the cost of each individual electronically controlled switch 130 can be reduced, and the cost of the entire photovoltaic system 200 can also be reduced. The configuration of multiple electronically controlled switches 130 can enhance the reliability of the photovoltaic system 200, reduce the probability of failure, and improve the stability and safety of the photovoltaic system 200.

[0070] In some embodiments, optionally, as shown in Figure 5, the photovoltaic tile 122 includes: a first cover plate 140, for protecting the internal components of the photovoltaic tile 122; a first adhesive film 142, provided on the first cover plate 140, for connecting the first cover plate 140; a photovoltaic cell 144, provided on the first adhesive film 142; a second adhesive film 146, provided on the photovoltaic cell 144, for connecting the photovoltaic cell 144 to the first cover plate 140; a second cover plate 148, covered with the second adhesive film 146; wherein the first cover plate 140, the first adhesive film 142, the photovoltaic cell 144, the second adhesive film 146 and the second cover plate 148 are stacked.

[0071] Specifically, as shown in FIG. 5 , the photovoltaic tile 122 includes a first cover plate 140 , a first adhesive film 142 , a photovoltaic cell 144 , a second adhesive film 146 and a second cover plate 148 . Among them, the first cover plate 140 is used to protect the internal components of the photovoltaic tile 122; the first adhesive film 142 is arranged on the first cover plate 140 for connecting the first cover plate 140; the photovoltaic cell 144 is arranged on the first adhesive film 142, and the second adhesive film 146 is arranged on the photovoltaic cell 144 for connecting the photovoltaic cell 144 to the first cover plate 140; the second cover plate 148 is covered on the second adhesive film 146, and the photovoltaic cell 144 is encapsulated inside the cover body through the first cover plate 140 and the second cover plate 148 to protect the photovoltaic cell 144. The first adhesive film 142 and the second adhesive film 146 realize the bonding of the first cover plate 140, the photovoltaic cell 144 and the second cover plate 148 together, thereby improving the overall bonding strength of the photovoltaic tile 122, so that the photovoltaic tile 122 is bonded together as a whole, and improving the overall firmness and stability of the photovoltaic tile 122.

[0072] Specifically, the first cover plate 140 can effectively protect the internal components, such as the photovoltaic cell 144, from external physical impact and environmental erosion. Through the first adhesive film 142 and the second adhesive film 146, the first cover plate 140, the photovoltaic cell 144 and the second cover plate 148 can be connected together to form a stable and firm structure, thereby improving the overall structural stability. This stacked structure can simplify the installation and maintenance process, because all the components are pre-assembled, and the user only needs to install them in sequence without having to perform complex connection operations separately. The stacked setting is conducive to the circulation of air between the layers, which helps to dissipate heat, thereby optimizing the thermal management of the photovoltaic system 200. The stacked structure helps to reduce the impact of shadows on the photovoltaic cell 144, thereby improving the power generation efficiency of the photovoltaic cell 144. By bonding the various components tightly together, the impact of external environmental factors (such as wind, rain, snow, etc.) on the system can be reduced, thereby enhancing the durability of the system.

[0073] In a specific application, the photovoltaic tile 122 serves as a basic unit for assembling the photovoltaic system 200. The photovoltaic tile 122 can be configured as a flat or curved type. The flat or curved photovoltaic tile 122 includes a first cover plate 140, a first adhesive film 142, a photovoltaic cell 144, a second adhesive film 146, and a second cover plate 148. Specifically, the first cover plate 140 can be a front glass plate, the first adhesive film 142 can be a front adhesive film, the photovoltaic cell 144 can be a solar cell or a stacked cell, the second adhesive film 146 can be a back adhesive film, and the second cover plate 148 can be a back plate. Specifically, the front glass plate is tempered glass to provide impact resistance; the front adhesive film and the back adhesive film are made of adhesive film materials such as EVA, POE, and PVB, which bond the other components together after heating; and the back plate can be one or a combination of glass, a PET composite back plate, a metal plate, or a composite fiber plate.

[0074] In some embodiments, optionally, as shown in FIG. 5 , the photovoltaic tile 122 further includes a wire layer 150 disposed between the photovoltaic cell 144 and the second adhesive film 146 , and the wire layer 150 is electrically connected to the photovoltaic cell 144 .

[0075] 5 , the photovoltaic tile 122 further includes a wire layer 150 , which is disposed between the photovoltaic cell 144 and the second adhesive film 146 to electrically connect the wire layer 150 to the photovoltaic cell 144 .

[0076] Specifically, the conductor layer 150 can provide an efficient conductive path from the photovoltaic cell 144 to the second adhesive film 146, ensuring that current can be smoothly conducted from the photovoltaic cell 144 to the external circuit. The provision of the conductor layer 150 can simplify the installation process and provide a clear conduction path for the current, eliminating the need for complex wiring operations during the installation process. The conductor layer 150 can enhance the connection stability between the photovoltaic cell 144 and the external circuit and reduce connection problems caused by environmental changes (such as temperature and humidity). The conductor layer 150 can act as a protective layer to prevent direct current from flowing through the second adhesive film 146 and causing damage to the photovoltaic cell 144. Due to the excellent conductivity of the conductor layer 150, it can effectively collect and conduct the current generated by the photovoltaic cell 144, thereby improving the power generation efficiency of the entire photovoltaic tile 122. By setting appropriate connection points on the conductor layer 150, maintenance personnel can easily perform circuit testing and troubleshooting. Because the conductor layer 150 can guide the current to the correct location, it can reduce safety hazards such as current leakage, thereby enhancing the safety of the entire photovoltaic system 200.

[0077] In some embodiments, photovoltaic cell 144 is optionally a solar cell or a tandem cell.

[0078] Specifically, by configuring the photovoltaic cell 144 as a solar cell or a stacked cell, energy waste can be reduced and the production capacity of the power system can be increased.

[0079] Specifically, solar cells can use solar energy to generate electricity and achieve sustainable energy utilization. Solar cells do not produce greenhouse gases and pollutants such as carbon dioxide during the power generation process, and have a small environmental load. Solar cells help reduce dependence on traditional energy sources and reduce air pollution and climate change problems. Solar cells can be installed in various places in a distributed manner, such as rooftops, wastelands, farmlands, etc., to make full use of solar energy resources. This decentralized layout helps reduce transmission losses and improve the stability and disaster resistance of the power system. Solar cells have a long service life, generally up to 20 years or more. It can also reduce electricity costs and reduce the energy burden. It can be combined and expanded as needed, and is suitable for power generation systems of various sizes and needs. In addition, photovoltaic cells 144 can also be combined with other renewable energy power generation technologies to form complementary advantages.

[0080] Specifically, the multi-layer structure of tandem solar cells allows for higher conversion efficiency, as each layer of cells absorbs a portion of the solar energy, allowing for more efficient utilization of the sun's energy. This efficient energy conversion can reduce energy waste and increase the capacity of power systems.

[0081] In specific applications, solar cells may include monocrystalline silicon solar cells, polycrystalline silicon solar cells, thin film solar cells or multi-compound solar cells, which may be configured according to actual usage and will not be described in detail here.

[0082] According to the second aspect of the present application, a photovoltaic system 200 is also proposed, comprising: a photovoltaic tile assembly 100 as in any one of the above embodiments; a lap joint 210, arranged on the peripheral side of the base plate 110, and two adjacent photovoltaic tile assemblies 100 are connected via the lap joint 210; and a cable portion 220, the cable portion 220 being connected between two adjacent photovoltaic tile assemblies 100.

[0083] The photovoltaic system 200 provided in the present application includes the photovoltaic tile assembly 100 of any of the above embodiments, and therefore has all the beneficial effects of the photovoltaic tile assembly 100, which will not be described in detail here.

[0084] In addition, as shown in Figure 6, the photovoltaic system 200 also includes a lap joint 210 and a cable portion 220. The lap joint 210 is provided on the peripheral side of the base plate 110. By providing the lap joint 210 on the peripheral side of the base plate 110, the connection between adjacent base plates 110 is faster and more efficient, thereby making the assembly between photovoltaic tile assemblies 100 more efficient, saving assembly time and assembly costs, improving the installation efficiency of the photovoltaic system 200, and improving the overall performance and reliability of the photovoltaic system 200. In addition, by connecting the cable portion 220 between two adjacent photovoltaic tile assemblies 100, the adjacent photovoltaic tile assemblies 100 can be electrically connected, so that the electrical energy generated by the batteries in the photovoltaic tiles 122 can be diverted to the outside through the cable portion 220, thereby improving the production capacity of the power system.

[0085] Specifically, the design of the lap joint 210 enables quick and convenient connection between two adjacent photovoltaic tile assemblies 100, forming a stable connection structure, making the assembled photovoltaic system 200 stable and reliable. This structural stability is crucial for the long-term use and power generation efficiency of the photovoltaic tiles 122. The provision of the lap joint 210 facilitates installation and removal of the photovoltaic tile assemblies 100. This allows for faster and more efficient installation and maintenance, improving work efficiency. The connection of the cable portion 220 forms a current loop between two adjacent photovoltaic tile assemblies 100, thereby improving the power generation efficiency of the entire photovoltaic system 200. This design fully utilizes solar energy resources and improves energy efficiency. The provision of the cable portion 220 facilitates cable inspection and replacement during maintenance, reducing the difficulty and cost of maintenance work and enhancing the reliability and stability of the photovoltaic system 200. The provision of the lap joint 210 and cable portion 220 reduces safety hazards such as current leakage, thereby improving the safety of the entire photovoltaic system 200.

[0086] According to a third aspect of the present application, a photovoltaic building roof 300 is provided, comprising: a photovoltaic system 200 as described in the above embodiment; a roof 310 connected to the photovoltaic system 200; and roof accessories 320 connected between the photovoltaic system 200 and the roof 310 for securing the photovoltaic system 200 to the roof 310.

[0087] The photovoltaic building roof 300 provided in the present application includes the photovoltaic system 200 of the above embodiment and thus has all the beneficial effects of the photovoltaic system 200, which will not be described in detail here.

[0088] As shown in Figure 6, the photovoltaic building roof 300 also includes a roof 310 and roof accessories 320. The roof 310 is connected to the photovoltaic system 200, and the roof accessories 320 are connected between the photovoltaic system 200 and the roof 310 to secure the photovoltaic system 200 to the roof 310. The roof accessories 320 securely secure the photovoltaic system 200 to the roof 310, thereby increasing the stability of the entire photovoltaic system 200. Furthermore, the entire photovoltaic system 200 is assembled on the ground and then installed on the roof 310, effectively improving installation efficiency and reducing installation costs. Specifically, small-sized photovoltaic tiles 122 are connected in series to form a module, which is then installed on the ground on the base plate 110 and equipped with power electronic controls. This facilitates efficient installation and reduces overhead work on the roof. By installing the electronically controlled switches 130, i.e., power electronic controls, in the photovoltaic system 200, the photovoltaic tiles 122 installed on the roof 310 avoid high-voltage direct current (HVDC) conditions, ensuring safety and maximizing power generation.

[0089] Specifically, roof accessories 320 securely fasten photovoltaic system 200 to roof 310, thereby increasing the stability of the entire photovoltaic system 200. Roof accessories 320 are designed to withstand wind loads and other external loads, thereby preventing damage to photovoltaic system 200 in adverse weather conditions. This wind load resistance improves the reliability and safety of photovoltaic system 200. Roof accessories 320 are designed to ensure a tight seal between photovoltaic system 200 and roof 310, preventing rainwater or other liquids from seeping into photovoltaic system 200. The design of roof accessories 320 simplifies the installation process of photovoltaic system 200, enabling installers and maintenance personnel to complete their work more quickly and conveniently.

[0090] In specific applications, the roof accessories 320 can be cables, installation parts, etc.

[0091] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that specific features, structures, materials, or characteristics described in conjunction with an embodiment or example are included in at least one embodiment or example of the present application. In this specification, 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 any one or more embodiments or examples.

[0092] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A photovoltaic tile assembly, wherein, Comprising: Bottom plate; A plurality of photovoltaic tile branch modules, the plurality of photovoltaic tile branch modules being disposed on the bottom plate; The photovoltaic tile branch module includes a plurality of photovoltaic tiles and a plurality of connection parts, the plurality of connection parts being connected between the plurality of photovoltaic tiles to electrically connect the plurality of photovoltaic tiles; Wherein, the plurality of photovoltaic tile branch modules are connected in series; or The plurality of photovoltaic tile branch modules are connected in parallel.

2. The photovoltaic tile assembly according to claim 1, wherein, The shape of the photovoltaic tile is a planar structure or a curved surface structure.

3. The photovoltaic tile assembly according to claim 1 or 2, wherein, The voltage across each end of each photovoltaic tile branch module is less than or equal to 80V.

4. The photovoltaic tile assembly according to any one of claims 1 to 3, wherein, The photovoltaic tile assembly further includes: An electric control switch, the electric control switch being disposed in the photovoltaic tile branch module; and / or The electric control switch is disposed between the series-connected photovoltaic tile branch modules; and / or The electric control switch is disposed between the parallel-connected photovoltaic tile branch modules.

5. The photovoltaic tile assembly according to claim 4, wherein, The number of the electric control switches is multiple.

6. The photovoltaic tile assembly according to any one of claims 1 to 5, wherein, The photovoltaic tile includes: A first cover plate for protecting the internal components of the photovoltaic tile; A first adhesive film disposed on the first cover plate for connecting the first cover plate; A photovoltaic cell disposed on the first adhesive film; A second adhesive film disposed on the photovoltaic cell for connecting the photovoltaic cell to the first cover plate; A second cover plate covering the second adhesive film; Wherein, the first cover plate, the first adhesive film, the photovoltaic cell, the second adhesive film and the second cover plate are stacked.

7. The photovoltaic tile assembly according to claim 6, wherein, The photovoltaic tile further includes: A wire layer disposed between the photovoltaic cell and the second adhesive film, the wire layer being electrically connected to the photovoltaic cell.

8. The photovoltaic tile assembly according to claim 6 or 7, wherein, The photovoltaic cell is a solar cell or a stacked cell.

9. A photovoltaic system, wherein, The photovoltaic system includes: The photovoltaic tile assembly according to any one of claims 1 to 8; A lapping part disposed on the periphery of the bottom plate, and adjacent two photovoltaic tile assemblies are connected through the lapping part; A cable part, the cable part being connected between adjacent two photovoltaic tile assemblies.

10. A photovoltaic building roof, wherein, Including the photovoltaic system according to claim 9; A roof connected to the photovoltaic system; Roof fittings connected between the photovoltaic system and the roof for fixing between the photovoltaic system and the roof.

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