Photovoltaic module

Abstract

The application provides a photovoltaic module, and relates to the technical field of photovoltaic modules, and comprises a bottom plate, a plurality of planar photovoltaic power generation units arranged on one side of the bottom plate, and a diode assembly arranged on the side of the bottom plate away from the planar photovoltaic power generation units, wherein the diode assembly comprises a connecting circuit and a plurality of diodes, the connecting circuit is connected with the planar photovoltaic power generation units, and each diode is connected in parallel with one planar photovoltaic power generation unit. In the technical scheme of the application, the plurality of planar photovoltaic power generation units are installed on the special-shaped bottom plate, the manufacturing process of the landscape photovoltaic module is simplified, each planar photovoltaic power generation unit is connected with one diode, the hot spot problem caused by shadow shielding can be avoided, and the service life of the product is improved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module technology, and more specifically, to a photovoltaic module. Background Technology

[0002] Irregularly shaped landscape photovoltaic (PV) modules are non-standard shaped PV products that combine PV power generation technology with landscape design. They are mainly used in public spaces, architectural landscapes, park facilities, and other scenarios. Irregularly shaped modules can be customized into irregular shapes such as circles, polygons, and hearts according to landscape requirements, combining power generation functionality with aesthetic value. Because the edges of irregularly shaped landscape PV modules are mostly irregular, crystalline silicon solar cells cannot be cut to perfectly match them. Furthermore, landscape PV modules are often located in shady areas or areas with concentrated buildings, making them highly susceptible to hot spots, which can damage the modules and affect their lifespan. Utility Model Content

[0003] In order to solve or improve the technical problems that crystalline silicon solar cells cannot be matched with irregularly shaped photovoltaic landscapes and are prone to hot spot phenomena, one object of this application is to provide a photovoltaic module.

[0004] To achieve the above objectives, the first aspect of this application provides a photovoltaic module, comprising: a substrate; a plurality of planar photovoltaic power generation units disposed on one side of the substrate; and a diode assembly disposed on the side of the substrate away from the planar photovoltaic power generation units, the diode assembly including a connecting circuit and a plurality of diodes, the connecting circuit being connected to the planar photovoltaic power generation units, and each diode being connected in parallel with one planar photovoltaic power generation unit.

[0005] This application aims to provide a photovoltaic module, including a base plate, multiple planar photovoltaic power generation units, and a diode module. The base plate can be an irregularly shaped base plate. Multiple planar photovoltaic power generation units are disposed on one side of the base plate. By mounting multiple power generation units on an irregularly shaped base plate, the manufacturing process of the landscape photovoltaic module is simplified, especially suitable for producing irregularly shaped landscape photovoltaic components with curved or hyperbolic forms. The diode module is disposed on the other side of the base plate. Arranging the diode module on the back of the base plate achieves a three-dimensional distribution of functions, which helps to achieve a thinner and lighter design of the module and also provides greater flexibility for the layout of other functional components. The diode module includes a connecting circuit and multiple diodes. The connecting circuit is connected to the planar photovoltaic power generation units, and each diode is connected in parallel with one planar photovoltaic power generation unit. Once a unit is shaded, the generated current can immediately bypass through its dedicated diode, thereby maximizing the power output of other normal planar photovoltaic power generation units, avoiding hot spot problems caused by shading, and extending the service life of the photovoltaic module.

[0006] In some technical solutions, optionally, the planar photovoltaic power generation unit includes a front cover plate, a first encapsulating film, a solar cell, a second encapsulating film, and a rear cover plate, which are stacked sequentially.

[0007] In this technical solution, the planar photovoltaic power generation unit includes a front cover plate, a first encapsulating film, solar cells, a second encapsulating film, and a rear cover plate stacked together. The front cover plate serves as the main load-bearing and protective layer, protecting the fragile solar cells from mechanical impacts and external pressure. The rear cover plate, combined with the frame, provides stable structural support. The first and second encapsulating films, acting as elastic adhesive layers, not only firmly bond the materials but also effectively absorb and disperse internal stresses caused by temperature changes, vibrations, or slight deformations, preventing the solar cells from cracking or breaking due to stress concentration. The two encapsulating films, together with the front and rear cover plates, form a reliable sealing barrier. This effectively prevents environmental factors such as moisture and oxygen from intruding into the interior, preventing corrosion of the solar cells and electrodes, and preventing EVA from yellowing and aging due to hydrolysis, thereby avoiding accelerated power degradation of the module. The clear stacking sequence provides clear process guidance for automated production lines, facilitating the one-time pressing of each layer of material into a single unit using a laminator, simplifying production steps and improving production efficiency.

[0008] In some technical solutions, the base plate is optionally provided with a power generation area and a non-power generation area, and the power generation area is used to install multiple planar photovoltaic power generation units.

[0009] In this technical solution, the base plate is divided into power generation areas and non-power generation areas. The power generation areas are used to install multiple planar photovoltaic power generation units. Specifically, the front of the irregularly shaped base plate is divided into power generation areas and non-power generation areas. The planar photovoltaic power generation units are installed in the power generation areas, and the non-power generation areas are printed with patterns that are consistent with the appearance of the planar photovoltaic power generation units, forming an irregularly shaped landscape photovoltaic module with a consistent appearance.

[0010] In some technical solutions, optionally, the power generation area is provided with multiple lead holes, and the positive and negative leads of each planar photovoltaic power generation unit are electrically connected to the connection circuit through a lead hole.

[0011] In this technical solution, the power generation area is equipped with multiple lead holes, and the positive and negative leads of each planar photovoltaic power generation unit are electrically connected to the connecting circuit through one lead hole. Independent lead holes provide a dedicated electrical path for each power generation unit. This point-to-point connection method fundamentally avoids the risks of multiple leads tangling, short circuits, or insulation wear that may occur when multiple leads are in the same hole. When a power generation unit malfunctions, maintenance personnel can quickly trace the corresponding circuit and diode on the back through its dedicated lead hole, eliminating the need for extensive troubleshooting, greatly simplifying the testing and repair process, and reducing maintenance costs and time. Specifically, the planar photovoltaic power generation unit is bonded to the base plate by applying adhesive around its perimeter. The positive and negative leads of the planar photovoltaic power generation unit are located within the adhesive area, extending through holes in the base plate to the back of the base plate and connecting to the base plate's built-in wiring. This adhesive application process provides 100% waterproofing.

[0012] In some technical solutions, multiple planar photovoltaic power generation units may optionally be connected in parallel and / or in series.

[0013] In this technical solution, multiple planar photovoltaic power generation units can be connected in parallel, series, or mixed configurations, providing high flexibility and adaptability for the electrical configuration of photovoltaic modules.

[0014] In some technical solutions, optionally, after the connection circuit is connected, a total positive and negative output terminal is led out, which is used to connect to the load; the photovoltaic module also includes: a back cover assembly, which is located on the side of the diode assembly away from the base plate, and is used to protect the connection circuit and the diode.

[0015] In this technical solution, after the connection circuit converges, a total positive and negative output terminal is led out, which is used to connect to the load. The photovoltaic module also includes a back cover assembly, which is located on the side of the diode assembly away from the base plate, and is used to protect the connection circuit and diodes. After all the power generation unit lines are connected, a positive and negative terminal is finally led out and connected to the load. By closing the back cover, the wiring on the back side can be protected. Specifically, the back cover assembly and the base plate together form a closed or semi-closed cavity, encapsulating the diodes and their connection circuits inside. This effectively blocks the intrusion of contaminants such as moisture, dust, and salt spray, and provides physical buffering and isolation. The back cover assembly is made of insulating material, which provides additional insulation protection for the high-voltage circuit, reduces the risk of short circuits caused by accidental contact or foreign object contact, and improves the overall safety of the system.

[0016] In some technical solutions, optionally, the surface of the front cover is provided with a hydrophobic texture, and the front cover includes a cover made of transparent polymer material.

[0017] In this technical solution, the surface of the front cover is provided with a hydrophobic texture, and the front cover includes a transparent polymer material cover. Specifically, the front cover can be transparent PET or other transparent polymer materials with a hydrophobic texture on the surface for easy self-cleaning.

[0018] In some technical solutions, optionally, the first encapsulating film includes one or a combination of the following: POE film, EVA film, PVB film or silicone film; and / or the second encapsulating film includes one or a combination of the following: POE film, EVA film, PVB film or silicone film; and / or the solar cell includes one or a combination of the following: crystalline silicon solar cell, thin-film cell or perovskite cell.

[0019] In this technical solution, the first encapsulating film can be a POE film, EVA film, PVB film, or silicone film. The second encapsulating film can be a POE film, EVA film, PVB film, or silicone film. The solar cell can be a crystalline silicon solar cell, a thin-film solar cell, or a perovskite solar cell.

[0020] In some technical solutions, the base plate may optionally include a curved base plate or a flat base plate.

[0021] In this technical solution, the base plate can be a curved base plate or a flat base plate.

[0022] In some technical solutions, optionally, the planar photovoltaic power generation unit is connected to the base plate with adhesive, and the positive and negative leads of the planar photovoltaic power generation unit are fixed to the base plate through the adhesive area, and the adhesive area completely covers the joint of the positive and negative leads.

[0023] In this technical solution, the planar photovoltaic power generation unit is connected to the base plate with adhesive. The positive and negative leads of the planar photovoltaic power generation unit are fixed to the base plate through the adhesive area. The adhesive area completely covers the joint of the positive and negative leads to achieve 100% waterproofing.

[0024] Additional aspects and advantages of the technical solutions of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0025] Figure 1 A front view schematic diagram of a photovoltaic module according to an embodiment of this application is shown; Figure 2 A rear view structural schematic diagram of a photovoltaic module according to another embodiment of this application is shown; Figure 3 A front view structural schematic diagram of a rear cover assembly according to an embodiment of this application is shown; Figure 4 A front view schematic diagram of a planar photovoltaic power generation unit according to an embodiment of this application is shown; Figure 5 An exploded view of a planar photovoltaic power generation unit according to an embodiment of this application is shown.

[0026] Figure label: 10: Photovoltaic module; 110: Base plate; 112: Power generation area; 114: Non-power generation area; 116: Lead hole; 120: Planar photovoltaic power generation unit; 130: Diode assembly; 132: Connection circuit; 134: Diode; 140: Front cover plate; 142: First encapsulating film; 144: Solar cell; 146: Second encapsulating film; 148: Rear cover plate; 150: Rear cover assembly; 160: Positive and negative leads. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of the embodiments of this application, the embodiments of this application will be further described in detail below with reference to the accompanying drawings and specific implementation methods. It should be noted that, unless otherwise specified, the embodiments of this application and the features within them can be combined with each other.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, embodiments of this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0029] Irregularly shaped landscape photovoltaic (PV) modules are non-standard shaped PV products that combine PV power generation technology with landscape design. They are mainly used in public spaces, architectural landscapes, park facilities, and other scenarios. Irregularly shaped modules can be customized into irregular shapes such as circles, polygons, and hearts according to landscape requirements, combining power generation functionality with aesthetic value. Because the edges of irregularly shaped landscape PV modules are mostly irregular, crystalline silicon solar cells cannot be cut to perfectly match them; moreover, landscape PV modules are often located in shady areas or areas with concentrated buildings, making them prone to hot spot phenomena, which can damage the modules and affect the product's lifespan.

[0030] This application aims to provide a photovoltaic module that simplifies the manufacturing process of landscape photovoltaic modules by mounting multiple power generation units on an irregularly shaped base plate. Each power generation unit is connected to a diode, which can avoid the problem of hot spots caused by shading and improve the service life of the product.

[0031] The following reference Figures 1 to 5 This application describes a photovoltaic module provided according to some embodiments.

[0032] In one embodiment of this application, such as Figure 1 , Figure 2 and Figure 3As shown, the photovoltaic module 10 includes a base plate 110, multiple planar photovoltaic power generation units 120, and a diode assembly 130. Specifically, the planar photovoltaic power generation units 120 are disposed on one side of the base plate 110. The diode assembly 130 is disposed on the side of the base plate 110 away from the planar photovoltaic power generation units 120. The diode assembly 130 includes a connecting circuit 132 and multiple diodes 134. The connecting circuit 132 is connected to the planar photovoltaic power generation units 120, and each diode 134 is connected in parallel with one planar photovoltaic power generation unit 120.

[0033] The photovoltaic module 10 provided in this embodiment includes a base plate 110, multiple planar photovoltaic power generation units 120, and a diode assembly 130. The base plate 110 can be an irregularly shaped base plate. The multiple planar photovoltaic power generation units 120 are disposed on one side of the base plate 110. By mounting multiple power generation units on the irregularly shaped base plate 110, the manufacturing process of the landscape photovoltaic module 10 is simplified, which is especially suitable for preparing irregularly shaped landscape photovoltaic components with curved or hyperbolic shapes. The diode assembly 130 is disposed on the other side of the base plate 110. Arranging the diode assembly 130 on the back of the base plate 110 achieves a three-dimensional distribution of functions, which helps to realize the thin and light design of the module and also provides greater flexibility for the layout of other functional components. The diode assembly 130 includes a connection circuit 132 and multiple diodes 134. The connection circuit 132 is connected to the planar photovoltaic power generation unit 120. Each diode 134 is connected in parallel with a planar photovoltaic power generation unit 120. Once a unit is shaded, the generated current can immediately bypass through its dedicated diode 134, thereby maximizing the protection of the power output of other normal planar photovoltaic power generation units 120, avoiding hot spot problems caused by shading, and improving the service life of the photovoltaic module 10.

[0034] like Figure 5As shown, in some embodiments, optionally, the planar photovoltaic power generation unit 120 includes a front cover plate 140, a first encapsulating film 142, a solar cell 144, a second encapsulating film 146, and a rear cover plate 148 stacked together. The front cover plate 140 serves as the main load-bearing and protective layer, protecting the fragile solar cell 144 from mechanical impact and external pressure. The rear cover plate 148, combined with the frame, provides stable structural support. The first encapsulating film 142 and the second encapsulating film 146, as elastic adhesive layers, not only firmly bond the various materials but also effectively absorb and disperse internal stress caused by temperature changes, vibration, or slight deformation, preventing the solar cell 144 from cracking or breaking due to stress concentration. The front and rear encapsulating films, combined with the front and rear cover plates 148, form a reliable sealing barrier. This effectively blocks environmental factors such as moisture and oxygen from intruding into the interior, preventing corrosion of the solar cell 144 and electrodes, thereby avoiding accelerated power degradation of the module. A clear stacking sequence provides clear process guidance for automated production lines, making it easy to press each layer of material into one piece using a laminator, simplifying production steps and improving production efficiency.

[0035] In some embodiments, optionally, the base plate 110 is provided with a power generation area 112 and a non-power generation area 114. The power generation area 112 is used to install multiple planar photovoltaic power generation units 120. Specifically, the front side of the irregularly shaped base plate is provided with a power generation area 112 and a non-power generation area 114. The planar photovoltaic power generation units 120 are installed in the power generation area 112, and the non-power generation area 114 is printed with a pattern that is consistent with the appearance of the planar photovoltaic power generation units 120, forming an irregularly shaped landscape photovoltaic module 10 with a consistent appearance.

[0036] In some embodiments, the power generation area 112 is optionally provided with multiple lead holes 116, and the positive and negative leads 160 of each planar photovoltaic power generation unit 120 are electrically connected to the connection circuit 132 through one lead hole 116. The independent lead hole 116 provides a dedicated electrical path for each power generation unit. This point-to-point connection method fundamentally avoids the risks of multiple leads becoming tangled, short-circuited, or experiencing insulation wear that may occur when multiple leads are in the same hole. When a power generation unit malfunctions, maintenance personnel can quickly trace back to the corresponding circuit and diode 134 on the back through its dedicated lead hole 116, eliminating the need for extensive troubleshooting, greatly simplifying the detection and repair process, and reducing maintenance costs and time. Specifically, the planar photovoltaic power generation unit 120 is bonded to the base plate 110 by applying adhesive around its perimeter. The positive and negative leads 160 of the planar photovoltaic power generation unit 120 are located within the adhesive area. The positive and negative leads 160 extend through holes in the base plate 110 to the back of the base plate 110 and connect with the wiring built into the base plate 110. This adhesive application process can achieve 100% waterproofing.

[0037] In some embodiments, the multiple planar photovoltaic power generation units 120 may optionally be connected in parallel, series or mixed configurations, providing a high degree of flexibility and adaptability for the electrical configuration of the photovoltaic module 10.

[0038] like Figure 4 As shown, in some embodiments, optionally, the connection circuit 132 leads out a total positive and negative output terminal after merging, which is used to connect to the load. The photovoltaic module 10 also includes a back cover assembly 150, which is located on the side of the diode assembly 130 away from the base plate 110, and is used to protect the diode assembly 130. After all the power generation unit lines are connected, a positive and negative terminal is finally led out to connect to the load. By fastening the back cover, the lines on the back can be protected. Specifically, the back cover assembly 150 and the base plate 110 together form a closed or semi-closed cavity, which encapsulates the diode 134 and its connection circuit 132, effectively blocking the intrusion of pollutants such as water vapor, dust, and salt spray, and providing physical buffering and isolation. The back cover assembly 150 is made of insulating material, which provides additional insulation protection for the high-voltage circuit, reduces the risk of short circuits caused by accidental contact or foreign object contact, and improves the overall safety of the system.

[0039] In some embodiments, the surface of the front cover 140 is optionally provided with a hydrophobic texture, and the front cover 140 includes a transparent polymer material cover. Specifically, the front cover 140 may be transparent PET or other transparent polymer material with a hydrophobic texture on the surface for easy self-cleaning.

[0040] In some embodiments, the first encapsulating film 142 may optionally be a POE film, an EVA film, a PVB film, or an silicone film.

[0041] In some embodiments, the second encapsulating film 146 may optionally be a POE film, an EVA film, a PVB film, or an organic silicone film.

[0042] In some embodiments, the solar cell 144 may optionally be a crystalline silicon solar cell 144, a thin-film solar cell, or a perovskite solar cell.

[0043] In some embodiments, the base plate 110 may optionally be a curved base plate or a flat base plate.

[0044] In some embodiments, the planar photovoltaic power generation unit 120 is optionally connected to the base plate 110 with adhesive, and the positive and negative leads 160 of the planar photovoltaic power generation unit 120 are fixed to the base plate 110 through the adhesive area. The adhesive area completely covers the joint of the positive and negative leads 160 to achieve 100% waterproofing.

[0045] like Figures 1 to 5As shown, according to a specific embodiment of the photovoltaic module 10 proposed in this application, multiple planar photovoltaic power generation units 120 are integrated on an irregularly shaped base plate 110 by setting a planar photovoltaic module as the smallest unit, thereby forming an irregularly shaped landscape photovoltaic module with multiple photovoltaic units.

[0046] The photovoltaic power generation unit is installed on the front of the irregularly shaped base plate, and the circuit is set on the back. A diode 134 is set on the circuit. Each photovoltaic power generation unit is connected to a diode 134, which can prevent hot spot problems caused by shading.

[0047] The front of the irregularly shaped base plate is provided with a power generation area 112 and a non-power generation area 114. The power generation area 112 is equipped with a planar photovoltaic power generation unit 120, and the non-power generation area 114 is printed with a pattern that is consistent with the appearance of the power generation unit, forming an irregularly shaped landscape photovoltaic module 10 with a consistent appearance.

[0048] Specifically, the photovoltaic module 10 mainly consists of a planar photovoltaic power generation unit 120, a base plate 110, circuits, and diodes 134. The planar photovoltaic module 10 is fixed to the base plate 110 by physical bonding. The planar photovoltaic power generation unit 120 mainly consists of a front cover plate 140, a first encapsulating film 142, solar cells 144, a second encapsulating film 146, and a rear cover plate 148. The front cover plate can be transparent PET or other transparent polymer materials with a hydrophobic texture for easy self-cleaning. The encapsulating film can be POE (Polyolefin elastomer), EVA (ethylene vinyl acetate), PVB (Polyvinyl butyral), silicone, or other commonly used photovoltaic encapsulation materials. The solar cells 144 can be crystalline silicon solar cells, thin-film solar cells, perovskite solar cells, etc. The rear cover plate 148 can be a photovoltaic-grade backsheet material or other high-polymer materials, mainly used to protect the internal solar cells 144. The base plate 110 is mainly composed of polymer material. The front of the base plate 110 has a power generation area 112 and a non-power generation area 114. The power generation area 112 is used to install the planar photovoltaic power generation unit 120, and the non-power generation area 114 is printed with a pattern identical to that of the planar photovoltaic power generation unit 120 to ensure a consistent overall appearance. The back of the base plate 110 has connecting lines and diodes 134. Holes are provided at the locations where the planar photovoltaic power generation unit 120 is installed on the base plate 110, facilitating the introduction of the positive and negative terminals of the power generation unit through these holes to the back of the base plate 110, where they are then electrically connected to the circuitry built into the base plate 110. The circuitry on the back of the irregularly shaped base plate can be configured in series and parallel according to actual needs, with the diodes 134 connected in parallel with the smallest power generation unit. The planar photovoltaic power generation unit 120 is bonded to the base plate 110 by applying adhesive around its perimeter. The positive and negative leads 160 of the planar photovoltaic power generation unit 120 are located within the adhesive-coated area. These leads extend through holes in the base plate 110 to the back of the base plate 110 and connect to the base plate's built-in wiring. This adhesive coating process provides 100% waterproofing. After all power generation unit wiring is connected, a single positive and negative lead is ultimately connected to the load. Closing the back cover protects the wiring on the back.

[0049] In summary, the beneficial effects of the embodiments of this application are as follows: 1. By mounting multiple power generation units on an irregularly shaped base plate, the manufacturing process of landscape photovoltaic modules is simplified; it is especially suitable for preparing irregularly shaped landscape photovoltaic components with curved or hyperbolic shapes.

[0050] 2. Diodes and circuits are installed on the back of the irregularly shaped base plate. Each power generation unit is connected to a diode, which can avoid the problem of hot spots caused by shading and improve the service life of the product.

[0051] In this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; "link" can mean a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A photovoltaic module, characterized in that, include: Base plate; Multiple planar photovoltaic power generation units are disposed on one side of the base plate; A diode assembly is disposed on the side of the base plate away from the planar photovoltaic power generation unit. The diode assembly includes a connection circuit and a plurality of diodes. The connection circuit is connected to the planar photovoltaic power generation unit, and each diode is connected in parallel with one planar photovoltaic power generation unit.

2. The photovoltaic module according to claim 1, characterized in that, The planar photovoltaic power generation unit includes a front cover plate, a first encapsulating film, a solar cell, a second encapsulating film, and a rear cover plate, which are stacked sequentially.

3. The photovoltaic module according to claim 2, characterized in that, The base plate is provided with a power generation area and a non-power generation area, and the power generation area is used to install multiple planar photovoltaic power generation units.

4. The photovoltaic module according to claim 3, characterized in that, The power generation area is provided with multiple lead holes, and the positive and negative leads of each planar photovoltaic power generation unit are electrically connected to the connection circuit through one of the lead holes.

5. The photovoltaic module according to claim 1, characterized in that, Multiple planar photovoltaic power generation units are connected in parallel and / or in series.

6. The photovoltaic module according to any one of claims 1 to 5, characterized in that, The connection circuit outputs a total positive and negative terminal after current convergence, which is used to connect to the load. The photovoltaic module also includes: A rear cover assembly is located on the side of the diode assembly away from the base plate, and is used to protect the connection circuit and the diode.

7. The photovoltaic module according to claim 2, characterized in that, The surface of the front cover is provided with a hydrophobic texture, and the front cover includes a cover made of transparent polymer material.

8. The photovoltaic module according to claim 2, characterized in that, The first encapsulating film includes one or a combination of the following: POE film, EVA film, PVB film, or silicone film; and / or The second encapsulating film includes one or a combination of the following: POE film, EVA film, PVB film, or silicone film; and / or The solar cell includes one or a combination of the following: crystalline silicon solar cell, thin-film solar cell, or perovskite solar cell.

9. The photovoltaic module according to claim 2, characterized in that, The base plate includes a curved base plate or a flat base plate.

10. The photovoltaic module according to claim 2, characterized in that, The planar photovoltaic power generation unit is connected to the base plate with adhesive. The positive and negative leads of the planar photovoltaic power generation unit are fixed to the base plate through the adhesive area, and the adhesive area completely covers the joint of the positive and negative leads.

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