Photovoltaic tile assembly, photovoltaic system and photovoltaic building roof

Abstract

The utility model relates to the technical field of solar photovoltaic, and provides a photovoltaic tile assembly, a photovoltaic system and a photovoltaic building roof. The photovoltaic tile assembly comprises a bottom plate; a plurality of photovoltaic tile branch circuit modules, wherein the plurality of photovoltaic tile branch circuit modules are arranged on the bottom plate; the photovoltaic tile branch module comprises a plurality of photovoltaic tiles and a plurality of wiring parts, and the plurality of wiring parts are connected among the plurality of photovoltaic tiles, so that the plurality of photovoltaic tiles are electrically connected; wherein the plurality of photovoltaic tile branch modules are connected in series; or the plurality of photovoltaic tile branch modules are connected in parallel.

Description

Technical Field

[0001] 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

[0002] 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, when installed on the roof, the operation is relatively complicated, resulting in high installation cost and low installation efficiency. Utility Model Content

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

[0004] To this end, the first aspect of the present application provides a photovoltaic tile assembly.

[0005] A second aspect of the present application provides a photovoltaic system.

[0006] A third aspect of the present application proposes a photovoltaic building roof.

[0007] 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.

[0008] The photovoltaic tile assembly provided in the present application includes a base plate and a plurality of photovoltaic tile branch modules. Among them, a plurality of photovoltaic tile branch modules are installed 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 so that the plurality of photovoltaic tiles are electrically connected, 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.

[0009] Specifically, a plurality of photovoltaic tile branch modules can be set to be connected in series, that is, when a plurality of photovoltaic tile branch modules are connected in series for installation, the 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 permits, a photovoltaic tile branch module can be installed on the base plate. In this way, the photovoltaic tiles can be installed more quickly and the installation efficiency can be improved.

[0010] 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 to 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 a 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.

[0011] The photovoltaic tile assembly according to the above technical solution of the present application may also have the following additional technical features:

[0012] In some technical solutions, optionally, the shape of the photovoltaic tile is a planar structure or a curved structure.

[0013] In this technical solution, by setting the shape of the photovoltaic tiles to a flat structure or a curved structure, the photovoltaic tiles with a flat structure can absorb sunlight more evenly and be used more widely. The curved photovoltaic tiles use heterojunction cells in the arc part, which have a low radius of curvature, a large curvature of the curved tiles, and a wide range, which can better utilize solar energy and improve the power generation efficiency of the photovoltaic tiles. Moreover, the photovoltaic tiles with a curved structure are highly adaptable and can meet some special occasions, such as outdoor 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.

[0014] In some technical solutions, optionally, the voltage across each photovoltaic tile branch module is less than or equal to 80V.

[0015] 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.

[0016] 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 the photovoltaic tile branch modules connected in series; and / or the electrically controlled switch is arranged between the photovoltaic tile branch modules connected in parallel.

[0017] In this technical solution, the photovoltaic tile assembly also includes an electric control switch. Among them, the electric control switch is arranged in the photovoltaic tile branch module; and / or the electric control switch is arranged between the photovoltaic tile branch modules connected in series; and / or the electric control switch is arranged between the photovoltaic tile branch modules connected in parallel. By arranging the electric control switch between different photovoltaic tiles, or between the photovoltaic tile branch modules connected in series, or between the 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 the photovoltaic tile array can be intelligently controlled to ensure the stable operation of the photovoltaic system. Protect the battery pack and solar cells from damage during the charging, discharging and load management processes. Achieve effective control of the photovoltaic system, and perform power-off operations when the photovoltaic system fails or the power is interrupted to ensure the safety of system operation and improve the safety and reliability of the use of photovoltaic tile assemblies.

[0018] In some technical solutions, optionally, there are multiple electrically controlled switches.

[0019] In this technical solution, there are multiple electronically controlled switches. By setting multiple electronically controlled switches, the photovoltaic circuit can be divided into multiple independent control segments, and independent control of each control segment can be achieved, that is, segmented control. Each electronically controlled switch has a protection function, which can protect the circuit from damage such as overvoltage and overcurrent, ensuring the safe operation of the circuit. By setting multiple electronically controlled switches, flexible control of the photovoltaic circuit can be achieved, and different configurations and controls can be performed according to actual needs.

[0020] 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.

[0021] 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 arranged on the first cover plate and is used to connect the first cover plate; the photovoltaic cell is arranged on the first adhesive film, and the second adhesive film is arranged on the photovoltaic cell and is used to connect the photovoltaic cell to the first cover plate; the second cover plate is arranged on the second adhesive film, and the photovoltaic cell is encapsulated inside the cover body by the first cover plate and the second cover plate to protect the photovoltaic cell. The first adhesive film and the second adhesive film realize bonding the first cover plate, the photovoltaic cell and the second cover plate together, thereby improving the bonding strength of the photovoltaic tile as a whole, so that the photovoltaic tile is bonded together as a whole, and improving the firmness and stability of the photovoltaic tile as a whole.

[0022] In some technical solutions, optionally, the photovoltaic tile further includes: a conductor layer, disposed between the photovoltaic cell and the second adhesive film, the conductor layer being electrically connected to the photovoltaic cell.

[0023] In this technical solution, the photovoltaic tile further includes a wire layer, wherein the wire layer is arranged between the photovoltaic cell and the second adhesive film to realize electrical connection between the wire layer and the photovoltaic cell.

[0024] In some technical solutions, optionally, the photovoltaic cell is a solar cell or a stacked cell.

[0025] In this technical solution, by setting the photovoltaic cells as solar cells or laminated cells, energy waste can be reduced and the production capacity of the power system can be increased.

[0026] According to the second aspect of the present application, a photovoltaic system is also proposed, comprising: a photovoltaic tile assembly as in any of the above-mentioned schemes; a lap joint, arranged on the peripheral side of the base plate, and two adjacent photovoltaic tile assemblies are connected by the lap joint; and a cable portion, which is connected between two adjacent photovoltaic tile assemblies.

[0027] The photovoltaic system provided in the present application includes the photovoltaic tile assembly of any of the above-mentioned technical solutions, and therefore has all the beneficial effects of the photovoltaic tile assembly, which will not be described in detail here.

[0028] In addition, the photovoltaic system also includes a lap joint and a cable part. The lap joint is arranged on the peripheral side of the bottom plate. By arranging the lap joint on the peripheral side of the bottom plate, the connection between adjacent bottom plates is faster and more efficient, thereby making the assembly between photovoltaic tile assemblies more efficient, saving assembly time and assembly cost, improving the installation efficiency of the photovoltaic system, and improving the overall performance and reliability of the photovoltaic system. In addition, by connecting the cable part between two adjacent photovoltaic tile assemblies, the adjacent photovoltaic tile assemblies can be electrically connected, so that the electric energy generated by the battery in the photovoltaic tile is guided to the outside through the cable part, thereby improving the production capacity of the power system.

[0029] According to the third aspect of the present application, a photovoltaic building roof is also proposed, comprising: a photovoltaic system as in the above scheme; a roof connected to the photovoltaic system; and a roof accessory connected between the photovoltaic system and the roof for fixing the photovoltaic system and the roof.

[0030] The photovoltaic building roof provided in the present 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.

[0031] In addition, the roof of a photovoltaic building also includes a roof and roof accessories. Among them, 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 on the roof, thereby increasing the stability of the entire photovoltaic system. Moreover, the entire photovoltaic system is assembled on the ground and then installed on the roof, which can effectively improve the installation efficiency and reduce the installation cost. 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 power electronic controls are added. The installation is convenient and efficient, and high-altitude operations on the roof are reduced; 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 that the power generation is maximized.

[0032] Additional aspects and advantages of the present application will become apparent in the following description or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 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:

[0034] Figure 1 This is a schematic diagram of the exploded structure of a photovoltaic tile assembly according to one embodiment of the present application;

[0035] Figure 2 This is a schematic diagram of the structure of a photovoltaic tile assembly according to an embodiment of the present application;

[0036] Figure 3 This is a schematic diagram of an exploded structure of a photovoltaic tile assembly according to another embodiment of the present application;

[0037] Figure 4 A schematic structural diagram of a photovoltaic tile assembly according to another embodiment of the present application;

[0038] Figure 5 for Figure 1 A schematic diagram of the structure of a photovoltaic tile in a photovoltaic tile assembly of the illustrated embodiment;

[0039] Figure 6 This is a schematic structural diagram of a photovoltaic building roof according to an embodiment of the present application.

[0040] in, Figures 1 to 6 The corresponding relationship between the reference numerals and the component names is as follows:

[0041] 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 conductor layer, 200 photovoltaic system, 210 overlapping part, 220 cable part, 300 photovoltaic building roof, 310 roof, 320 roof accessories. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0044] Refer to the following Figures 1 to 6 The photovoltaic tile assembly 100, the photovoltaic system 200 and the photovoltaic building roof 300 provided according to some embodiments of the present application are described.

[0045] like Figures 1 to 6 As shown, Figure 1 This is a schematic diagram of the exploded structure of a photovoltaic tile assembly according to one embodiment of the present application; Figure 2 This is a schematic diagram of the structure of a photovoltaic tile assembly according to an embodiment of the present application; Figure 3 This is a schematic diagram of an exploded structure of a photovoltaic tile assembly according to another embodiment of the present application; Figure 4 A schematic structural diagram of a photovoltaic tile assembly according to another embodiment of the present application; Figure 5 for Figure 1 A schematic diagram of the structure of a photovoltaic tile in a photovoltaic tile assembly of the illustrated embodiment; Figure 6The schematic diagram of the structure of the photovoltaic building roof of one embodiment of the present application. The photovoltaic tile assembly 100 provided by one embodiment of the present application includes: a base plate 110; a plurality of photovoltaic tile branch modules 120, and the plurality of photovoltaic tile branch modules 120 are arranged on the base plate 110; the photovoltaic tile branch modules 120 include a plurality of photovoltaic tiles 122 and a plurality of wiring parts 124, and the plurality of wiring parts 124 are 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.

[0046] Specifically, Figures 1 to 4 As shown, the photovoltaic tile assembly 100 includes a base plate 110 and a plurality of photovoltaic tile branch modules 120. Among them, the plurality of photovoltaic tile branch modules 120 are installed on the base plate 110 so as to realize the rapid 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 parts 124, and the plurality of wiring parts 124 are connected between the plurality of photovoltaic tiles 122 so as 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 parts 124 to form a photovoltaic tile branch module 120 connected in series. By connecting a plurality of photovoltaic tiles 122 in series to form a photovoltaic tile branch module 120, when installing the photovoltaic tiles 122, a photovoltaic tile branch module 120 can be installed as a whole module, thereby improving the installation efficiency.

[0047] Specifically, a plurality of photovoltaic tile branch modules 120 may be arranged to be connected in series, that is, when a plurality of photovoltaic tile branch modules 120 are connected in series for installation, the plurality of photovoltaic tile branch modules 120 are connected in series with each other to form a larger series-installed 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 permits, a photovoltaic tile branch module 120 may be installed on the base plate 110. In this way, the photovoltaic tiles 122 can be installed more quickly, thereby improving the installation efficiency.

[0048] Specifically, multiple photovoltaic tile branch modules 120 can be set 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, so that faster installation of photovoltaic tiles 122 can be achieved, thereby improving installation efficiency.

[0049] like Figure 2 and Figure 4 As shown, by connecting the photovoltaic tiles 122 in series using the wiring part 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, and the entire assembly process is completed on the ground, which saves time and effort, improves installation efficiency, and reduces installation and maintenance costs.

[0050] In specific applications, the bottom plate 110 can be set 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 main body of the bottom plate 110 is a plane, and a structural part for overlapping is provided around it. While providing the function of installing the base, the bottom plate 110 also has a waterproof function. At the same time, the bottom plate 110 can be set in a variety of sizes. The size of the bottom plate 110 can be flexibly matched according to the area of ​​the roof 310 or the number of photovoltaic tile branch modules 120 installed, so as to cover the roof 310 or part of it flatly.

[0051] In some embodiments, optionally, Figure 2 and Figure 4 As shown, the photovoltaic tile 122 has a planar structure or a curved structure.

[0052] Specifically, by setting the shape of the photovoltaic tile 122 to be a plane structure or a curved structure, the photovoltaic tile 122 with a plane structure can absorb sunlight more evenly and be more widely used. The photovoltaic tile 122 with a curved structure uses a heterojunction cell in the arc portion, 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 is highly adaptable 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 be a plane structure or a curved structure, the scope of use of the photovoltaic tile 122 is expanded.

[0053] Specifically, Figure 1 and Figure 2 As shown, the photovoltaic tile 122 with a planar structure can absorb sunlight more evenly without a barrel effect. The photovoltaic tile 122 with such a structure is widely used and suitable for various environments.

[0054] like Figure 3 and Figure 4 As shown, the photovoltaic tile 122 with a curved surface structure has some special technical effects. For example, the use of heterojunction cells on the curved surface reduces the minimum radius of curvature of the curved surface of the curved tile to about 50 mm, and the curved tile can 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, whether it is a planar structure or a curved structure, the photovoltaic tile 122 has the advantages of good weak light effect, small shadow occlusion, small hot spot effect, and strong load-bearing capacity, which can better improve the power generation efficiency of the photovoltaic tile 122.

[0055] In specific applications, different photovoltaic tile structural shapes have their unique technical effects and advantages. The corresponding flat photovoltaic tiles or curved photovoltaic tiles can be selected according to application requirements and environmental conditions.

[0056] In some embodiments, optionally, the voltage across each photovoltaic tile branch module 120 is less than or equal to 80V.

[0057] 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.

[0058] Specifically, by limiting the voltage across the photovoltaic tile branch module 120 to 80V or below, excessive voltage can be avoided from causing harm to human body and equipment, ensuring safe use. In addition, the appropriate voltage range helps to improve the power generation efficiency of the photovoltaic tile 122, so that it can operate stably in various environments.

[0059] In addition, by limiting the voltage across the photovoltaic tile branch module 120 to 80V or below, the energy consumption of the photovoltaic tile 122 can be reduced and its energy efficiency ratio can be improved. In addition, the appropriate voltage range helps to extend the service life of the photovoltaic tile 122 and reduce the frequency of maintenance and replacement. By controlling the voltage across the photovoltaic tile branch module 120 within a certain range, the entire photovoltaic system 200 can be easily managed and monitored to ensure its normal operation.

[0060] 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 from 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.

[0061] 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 according to the voltage of a single photovoltaic tile 122 actually used.

[0062] In some embodiments, optionally, Figure 2 and Figure 4 As shown, the photovoltaic tile assembly 100 also includes: an electrically controlled switch 130, the electrically controlled switch 130 is arranged in the photovoltaic tile branch module 120; and / or the electrically controlled switch 130 is arranged between the photovoltaic tile branch modules 120 connected in series; and / or the electrically controlled switch 130 is arranged between the photovoltaic tile branch modules 120 connected in parallel.

[0063] Specifically, the photovoltaic tile assembly 100 also includes an electric control switch 130. The electric control switch 130 is arranged in the photovoltaic tile branch module 120; and / or the electric control switch 130 is arranged between the photovoltaic tile branch modules 120 connected in series; and / or the electric control switch 130 is arranged between the photovoltaic tile branch modules 120 connected in parallel. By arranging the electric control switch 130 between different photovoltaic tiles 122, or between the photovoltaic tile branch modules 120 connected in series, or between the photovoltaic tile branch modules 120 connected in parallel, an intelligent shutdown function can be provided, and the output voltage and current of the photovoltaic tile branch module 120 or the photovoltaic tile 122 array can be intelligently controlled to ensure the stable operation of the photovoltaic system 200. The battery pack and the solar cell are protected from damage during the charging, discharging and load management processes. Effective control of the photovoltaic system 200 is achieved, and a power-off operation is performed when the photovoltaic system 200 fails or the power is interrupted, so as to ensure the safety of the system operation and improve the safety and reliability of the use of the photovoltaic tile assembly 100.

[0064] Specifically, by setting the electric control 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, by controlling the output voltage and current of the photovoltaic tile branch module 120 or the photovoltaic tile 122 array, the battery group and the solar cell can be protected from damage such as overvoltage and overcurrent, and their service life can be extended. Through the electric control switch 130, effective control of the photovoltaic system 200 can be achieved, including charging, discharging, load management, etc., to improve the efficiency and stability of the photovoltaic system 200 and achieve effective control. When the photovoltaic system 200 fails or the power is interrupted, the electric control switch 130 can quickly cut off the output circuit to avoid circuit short circuits and overvoltage faults, and ensure the safety of system operation. Through the electric control switch 130, the photovoltaic system 200 can be conveniently maintained and managed, including troubleshooting, battery replacement, etc., to improve work efficiency and convenience.

[0065] In a specific application, the electric control switch 130 can be specifically set as a power electronic control, which can provide an intelligent shutdown function and, optionally, can provide a power optimization function and an inverter 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 while ensuring that the power generation of the photovoltaic tile assembly 100 is maximized.

[0066] In some embodiments, optionally, Figure 2 and Figure 4 As shown, there are multiple electronically controlled switches 130 .

[0067] Specifically, there are multiple electronically controlled switches 130. By setting multiple electronically controlled switches 130, the photovoltaic circuit can be divided into multiple independent control sections, and independent control of each control section can be achieved, that is, segmented control. Each electronically controlled switch 130 has a protection function, which can protect the circuit from damage such as overvoltage and overcurrent, and ensure the safe operation of the circuit. By setting multiple electronically controlled switches 130, flexible control of the photovoltaic circuit can be achieved, and different configurations and controls can be performed according to actual needs.

[0068] Specifically, the number of the electric control switches 130 is set to be multiple. Through the setting of multiple electric control switches 130, precise control of the photovoltaic circuit can be achieved, and the power generation efficiency and stability of the photovoltaic system 200 can be improved. In addition, the setting of multiple electric control switches 130 can conveniently maintain and manage the photovoltaic circuit, including troubleshooting, battery replacement, etc., to improve work efficiency and convenience. Through the setting of multiple electric control switches 130, the cost of a single electric control switch 130 can be reduced, and the cost of the entire photovoltaic system 200 can also be reduced. The setting of multiple electric control 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.

[0069] In some embodiments, optionally, Figure 5 As shown, the photovoltaic tile 122 includes: a first cover plate 140, used to protect the internal components of the photovoltaic tile 122; a first adhesive film 142, provided on the first cover plate 140, used to connect 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, used to connect the photovoltaic cell 144 to the first cover plate 140; a second cover plate 148, covered on 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.

[0070] Specifically, Figure 5 As shown, 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, which is used to connect 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, which is used to connect 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 by 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 the overall firmness and stability of the photovoltaic tile 122 are improved.

[0071] 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 order 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.

[0072] In a specific application, the photovoltaic tile 122 is used as a basic unit for assembling the photovoltaic system 200. The photovoltaic tile 122 can be set to 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. Among them, the first cover plate 140 can be specifically a front plate glass, the first adhesive film 142 can be specifically a front adhesive film, the photovoltaic cell 144 can be specifically a solar cell or a stacked cell, the second adhesive film 146 can be specifically a back adhesive film, and the second cover plate 148 can be specifically a back plate. Specifically, the front plate glass is tempered glass to provide impact resistance; the front adhesive film and the back adhesive film are adhesive film materials such as EVA, POE, PVB, etc., which bond other components together after heating; the back plate can be one or a combination of glass, PET composite back plate, metal plate, composite fiber plate.

[0073] In some embodiments, optionally, Figure 5 As shown, 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 .

[0074] Specifically, Figure 5 As shown, the photovoltaic tile 122 further includes a wire layer 150 . The wire layer 150 is disposed between the photovoltaic cell 144 and the second adhesive film 146 to achieve electrical connection between the wire layer 150 and the photovoltaic cell 144 .

[0075] Specifically, the wire layer 150 can provide an efficient conductive path from the photovoltaic cell 144 to the second adhesive film 146, ensuring that the current can be smoothly conducted from the photovoltaic cell 144 to the external circuit. The setting of the wire layer 150 can simplify the installation process and provide a clear conduction path for the current, without the need for complex wiring operations during the installation process. The wire 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 wire layer 150 can serve as a protective layer to prevent direct current from flowing through the second adhesive film 146 to damage the photovoltaic cell 144. Due to the excellent conductivity of the wire 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 wire layer 150, maintenance personnel can easily perform circuit testing and troubleshooting. Since the wire layer 150 can guide the current to the correct position, it can reduce safety hazards such as current leakage and enhance the safety of the entire photovoltaic system 200.

[0076] In some embodiments, photovoltaic cell 144 is optionally a solar cell or a tandem cell.

[0077] 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.

[0078] 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 roofs, 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 more than 20 years. 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.

[0079] Specifically, the multi-layer structure of stacked solar cells makes its conversion efficiency higher, because each layer of battery cells can absorb part of the solar energy, so that the energy of solar energy can be more fully utilized. This efficient energy conversion can reduce energy waste and increase the production capacity of the power system.

[0080] In specific applications, solar cells may specifically 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.

[0081] According to the second aspect of the present application, a photovoltaic system 200 is also proposed, comprising: a photovoltaic tile assembly 100 as any one of the above embodiments; a lap joint 210, which is 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, which is connected between two adjacent photovoltaic tile assemblies 100.

[0082] 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.

[0083] In addition, if Figure 6 As shown, the photovoltaic system 200 also includes a lap joint 210 and a cable part 220. The lap joint 210 is arranged on the peripheral side of the bottom plate 110. By arranging the lap joint 210 on the peripheral side of the bottom plate 110, the connection between adjacent bottom plates 110 is faster and more efficient, thereby making the assembly between photovoltaic tile assemblies 100 more efficient, saving assembly time and assembly cost, 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 part 220 between two adjacent photovoltaic tile assemblies 100, the adjacent photovoltaic tile assemblies 100 can be electrically connected, so that the electric energy generated by the battery in the photovoltaic tile 122 is guided to the outside through the cable part 220, thereby improving the production capacity of the power system.

[0084] Specifically, the design of the overlap portion 210 enables the two adjacent photovoltaic tile assemblies 100 to be connected quickly and conveniently, thereby forming a stable connection structure, so that the assembled photovoltaic system 200 is stable and reliable. This structural stability is very important for the long-term use and power generation efficiency of the photovoltaic tile 122. Through the setting of the overlap portion 210, the photovoltaic tile assembly 100 can be easily installed and disassembled. This enables the work to be completed more quickly and efficiently during the installation and maintenance process, thereby improving the work efficiency. Through the connection of the cable portion 220, a current loop can be formed between the two adjacent photovoltaic tile assemblies 100, thereby improving the power generation efficiency of the entire photovoltaic system 200. This design makes full use of solar energy resources and improves energy utilization efficiency. The setting of the cable portion 220 enables the cable to be easily checked and replaced during maintenance. This reduces the difficulty and cost of maintenance work and improves the reliability and stability of the photovoltaic system 200. The setting of the overlap portion 210 and the cable portion 220 can reduce safety hazards such as current leakage and improve the safety of the entire photovoltaic system 200.

[0085] According to the third aspect of the present application, a photovoltaic building roof 300 is also proposed, comprising: the photovoltaic system 200 as in the above embodiment; a roof 310 connected to the photovoltaic system 200; and a roof accessory 320 connected between the photovoltaic system 200 and the roof 310 for fixing the photovoltaic system 200 and the roof 310.

[0086] 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.

[0087] In addition, if Figure 6 As shown, the photovoltaic building roof 300 also includes a roof 310 and a roof accessory 320. Among them, the roof 310 is connected to the photovoltaic system 200, and the roof accessory 320 is connected between the photovoltaic system 200 and the roof 310, and is used to fix the photovoltaic system 200 and the roof 310. The roof accessory 320 can firmly fix the photovoltaic system 200 on the roof 310, thereby increasing the stability of the entire photovoltaic system 200. In addition, the entire photovoltaic system 200 is assembled on the ground and then installed on the roof 310, which can effectively improve the installation efficiency and reduce the installation cost. In other words, the small-sized unit photovoltaic tiles 122 are connected in series in the form of modules, installed on the bottom plate 110 on the ground, and power electronic controls are added, which is convenient and efficient to install and reduces rooftop high-altitude operations; by installing the electric control switch 130, i.e., the power electronic control, in the photovoltaic system 200, the photovoltaic tiles 122 installed on the roof 310 avoid the high-voltage direct current phenomenon, which is safer and can ensure that the power generation is maximized.

[0088] Specifically, the roof accessories 320 can firmly fix the photovoltaic system 200 on the roof 310, thereby increasing the stability of the entire photovoltaic system 200. The design of the roof accessories 320 can resist wind loads and other external loads, thereby preventing the photovoltaic system 200 from being damaged under severe weather conditions. This wind load resistance improves the reliability and safety of the photovoltaic system 200. The design of the roof accessories 320 can ensure the sealing between the photovoltaic system 200 and the roof 310, thereby preventing rainwater or other liquids from penetrating into the interior of the photovoltaic system 200. The design of the roof accessories 320 can simplify the installation process of the photovoltaic system 200, allowing installation and maintenance personnel to complete their work more quickly and conveniently.

[0089] In specific applications, the roof accessories 320 may be cables, installation parts, etc.

[0090] In the description of this application, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the terms "upper" and "lower" indicate positions or positional relationships based on the positions or positional relationships 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 cannot be understood as limitations on this application. The terms "connection", "installation", "fixed", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0091] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0092] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A photovoltaic tile assembly, characterized in that: include: Base plate; A plurality of photovoltaic tile branch modules, wherein the plurality of photovoltaic tile branch modules are arranged on the base plate; The photovoltaic tile branch module includes a plurality of photovoltaic tiles and a plurality of wiring parts, wherein the plurality of wiring parts are connected between the plurality of photovoltaic tiles to electrically connect the plurality of photovoltaic tiles; Wherein, a plurality of the photovoltaic tile branch modules are connected in series; or A plurality of photovoltaic tile branch modules are connected in parallel.

2. The photovoltaic tile assembly according to claim 1, characterized in that: The photovoltaic tile has a planar structure or a curved structure.

3. The photovoltaic tile assembly according to claim 1, characterized in that: The voltage across each of the photovoltaic tile branch modules is less than or equal to 80V.

4. The photovoltaic tile assembly according to claim 1, characterized in that: The photovoltaic tile assembly also includes: An electrically controlled switch, wherein the electrically controlled switch is disposed in the photovoltaic tile branch module; and / or The electric control switch is arranged between the photovoltaic tile branch modules connected in series; and / or The electric control switch is arranged between the photovoltaic tile branch modules connected in parallel.

5. The photovoltaic tile assembly according to claim 4, characterized in that: The number of the electronically controlled switches is multiple.

6. The photovoltaic tile assembly according to any one of claims 1 to 5, characterized in that: The photovoltaic tile comprises: A first cover plate, used to protect the internal components of the photovoltaic tile; A first adhesive film, provided on the first cover plate, and used for connecting the first cover plate; A photovoltaic cell, arranged on the first adhesive film; A second adhesive film, provided on the photovoltaic cell, for connecting the photovoltaic cell to the first cover plate; A second cover plate, covering the second adhesive film; 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, characterized in that: The photovoltaic tile also includes: The wire layer is disposed between the photovoltaic cell and the second adhesive film, and the wire layer is electrically connected to the photovoltaic cell.

8. The photovoltaic tile assembly according to claim 6, characterized in that: The photovoltaic cell is a solar cell or a stacked cell.

9. A photovoltaic system, characterized in that: The photovoltaic system comprises: The photovoltaic tile assembly according to any one of claims 1 to 8; A lap joint, arranged on the peripheral side of the bottom plate, through which two adjacent photovoltaic tile assemblies are connected; A cable portion is connected between two adjacent photovoltaic tile assemblies.

10. A photovoltaic building roof, characterized in that: comprising the photovoltaic system as claimed in claim 9; a roof connected to the photovoltaic system; The roof accessories are connected between the photovoltaic system and the roof and are used to fix the photovoltaic system and the roof.

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