Photovoltaic module

Abstract

The utility model provides a photovoltaic assembly. The photovoltaic module comprises a flexible plate which extends along a first direction; and the plurality of flexible power generation modules are arranged on the flexible plate at intervals in the first direction, and the flexible power generation modules and the circumferential side edge of the flexible plate are arranged at intervals, so that the photovoltaic module is curled into a roll-shaped structure. According to the utility model, the problems of tedious packaging procedure and high transportation cost of the photovoltaic module in the prior art are solved.

Description

Technical Field

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

[0002] In recent years, with the increasing severity of global energy crises, environmental pollution, and climate change, the growing role of renewable energy in the energy structure has become an inevitable trend in global energy development. Among these, solar energy, as a clean and renewable energy source, boasts advantages such as low application cost, renewability, wide distribution, low energy density, and ease of collection and utilization, making it a key focus in the global energy sector.

[0003] Existing photovoltaic modules are usually framed glass photovoltaic modules. In order to avoid collisions during transportation, the glass photovoltaic modules need to be packed in boxes on the production site. The packing process is not only cumbersome, but also increases the transportation cost of photovoltaic modules. Utility Model Content

[0004] The main objective of this invention is to provide a photovoltaic module to solve the problems of cumbersome packaging procedures and high transportation costs in the existing photovoltaic module technology.

[0005] To achieve the above objectives, according to one aspect of the present invention, a photovoltaic module is provided, comprising:

[0006] A flexible sheet, the flexible sheet extending along a first direction;

[0007] Multiple flexible power generation modules are arranged at intervals along a first direction on a flexible plate, and the flexible power generation modules are also spaced apart from the circumferential sides of the flexible plate, so that the photovoltaic modules can be rolled into a roll-shaped structure.

[0008] Furthermore, the flexible power generation module includes at least one flexible power generation unit. When there are multiple flexible power generation units, the multiple flexible power generation units extend along a second direction, wherein the first direction intersects with the second direction.

[0009] Furthermore, the number of flexible power generation units arranged along the first direction is greater than the number of flexible power generation units arranged along the second direction.

[0010] Furthermore, the flexible power generation unit includes: a power generation main body connected to a flexible plate; at least two leads located on one side of the power generation main body; an insulating fixing layer attached to one side surface of the power generation main body, with the leads located between the insulating fixing layer and the power generation main body; wherein the at least two leads include at least one positive lead and at least one negative lead.

[0011] Furthermore, the flexible power generation unit also includes a junction box, which is detachably connected to the lead wire.

[0012] Furthermore, the photovoltaic module also includes a connecting film layer, which is located between the flexible power generation module and the flexible panel.

[0013] Furthermore, the flexible panel, connecting membrane layer, and flexible power generation module are integrally laminated.

[0014] Furthermore, the sum of the length L1 of the flexible power generation module in the first direction and the first distance L2 between two adjacent flexible power generation modules is the cutting length D, and the length of the flexible plate in the first direction is an integer multiple of the cutting length D.

[0015] Furthermore, the flexible panel includes a first side and a second side perpendicular to the first direction, the minimum distance from the flexible power generation module to the first side is greater than or equal to half of the first distance L2, and the minimum distance from the flexible power generation module to the second side is greater than or equal to half of the first distance L2.

[0016] Furthermore, flexible sheets include profiled metal sheets.

[0017] The photovoltaic module using the technical solution of this utility model includes a flexible plate and multiple flexible power generation modules. The flexible plate extends along a first direction; and the multiple flexible power generation modules are spaced apart on the flexible plate along the first direction, and the flexible power generation modules are spaced apart from the circumferential sides of the flexible plate, so that the photovoltaic module can be rolled into a roll structure.

[0018] By placing flexible power generation modules on a flexible plate, photovoltaic modules have low rigidity but high flexibility, which facilitates bending of the photovoltaic modules. This allows the photovoltaic modules to be rolled into a roll structure during transportation, which not only facilitates transportation but also hides the power generation modules inside the flexible plate, preventing damage from external structures and reducing the risk of damage during transportation.

[0019] Furthermore, due to the high flexibility of the photovoltaic module in this invention, its shape has a large deformation range. This allows the photovoltaic module to not only adapt to flat installations but also to be easily rolled up, making it suitable for curved, foldable, or deformable surfaces. This greatly expands the application range of photovoltaic modules and improves the convenience of installation and transportation. This characteristic enables the photovoltaic module to be used in space-constrained environments. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0021] Figure 1 A schematic diagram of the structure of a photovoltaic module according to an optional embodiment of the present invention is shown;

[0022] Figure 2 It shows Figure 1 A cross-sectional view of a photovoltaic module from one angle;

[0023] Figure 3 A schematic diagram of the structure of a photovoltaic module according to another optional embodiment of the present invention is shown;

[0024] Figure 4 It shows Figure 3 A cross-sectional view of a photovoltaic module from one angle;

[0025] Figure 5 A schematic diagram of the structure of a photovoltaic module according to another optional embodiment of the present invention is shown;

[0026] Figure 6 The diagram shows a state diagram of a photovoltaic module roll with a roll-shaped structure, according to an optional embodiment of the present invention.

[0027] The above figures include the following reference numerals:

[0028] 10. Flexible panel; 11. First side; 12. Second side; 13. First region; 14. Second region; 20. Flexible power generation module; 21. Flexible power generation unit; 211. Power generation main body; 212. Lead wire; 213. Insulating fixing layer; 214. Junction box; 215. Solar cell. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0032] To address the problems of cumbersome packaging procedures and high transportation costs in existing photovoltaic modules, this utility model provides a photovoltaic module.

[0033] like Figures 1 to 6 As shown, the photovoltaic module includes a flexible plate 10 and a plurality of flexible power generation modules 20. The flexible plate 10 extends along a first direction; and the plurality of flexible power generation modules 20 are spaced apart on the flexible plate 10 along the first direction, and the flexible power generation modules 20 are spaced apart from the circumferential sides of the flexible plate 10, so that the photovoltaic module can be rolled into a roll structure.

[0034] By placing the flexible power generation module 20 on the flexible plate 10, the photovoltaic module has low rigidity but high flexibility, which is conducive to bending the photovoltaic module. This allows the photovoltaic module to be rolled into a roll structure during transportation, which not only facilitates the transportation of the photovoltaic module, but also hides the flexible power generation module 20 inside the flexible plate 10 after the photovoltaic module is rolled into a roll structure, avoiding damage to the flexible power generation module 20 from external structures and reducing the risk of damage to the photovoltaic module during transportation.

[0035] Furthermore, due to the high flexibility of the photovoltaic module in this invention, its shape has a large deformation range. This allows the photovoltaic module to not only adapt to flat installations but also to be easily rolled up, making it suitable for curved, foldable, or deformable surfaces. This greatly expands the application range of photovoltaic modules and improves the convenience of installation and transportation. This characteristic enables the photovoltaic module to be used in space-constrained environments.

[0036] When rolling photovoltaic modules into a roll-like structure, rolling along the first direction helps to increase the length of the photovoltaic modules, making them easier to transport.

[0037] Currently, whether framed glass modules or lightweight, frameless modules, photovoltaic (PV) modules need to be fixed to the building surface as accessories for power generation via mechanical connections or adhesive bonding. Over time, the connection strength between the PV modules and the building surface weakens, making the modules prone to damage. Furthermore, the installation of PV modules must be tailored to the shape of the building surface, increasing the difficulty of installation.

[0038] Optionally, the flexible panel 10 includes a metal profiled sheet. The flexible panel 10 being a metal profiled sheet allows the photovoltaic modules to be used directly as part of the building's surface cladding structure. For example, in a corrugated steel shed, the photovoltaic modules can be used directly as the flexible panel 10 without needing to be attached to the building surface. The photovoltaic structure in this invention can be directly used as the building surface, rather than as an appendage, to generate electricity, which is beneficial for the long-term use of the photovoltaic modules and reduces the risk of damage. Furthermore, this design also reduces the difficulty of installing the photovoltaic modules.

[0039] Furthermore, the photovoltaic modules of this invention can undergo secondary batch processing on-site. For example, areas on the flexible panel 10 without the flexible power generation module 20 installed can be rolled to create various waveforms and rib-shaped structures. The photovoltaic modules of this invention have the advantages of diverse applications, convenient transportation, and rolling operations that are not limited by location.

[0040] like Figure 1 and Figure 3 As shown, the flexible power generation module 20 includes at least one flexible power generation unit 21. When there are multiple flexible power generation units 21, the multiple flexible power generation units 21 extend along a second direction, wherein the first direction intersects with the second direction.

[0041] Each flexible power generation module 20 may contain only one flexible power generation unit 21 or multiple flexible power generation units 21. There are no specific restrictions here. It is only necessary to ensure that the photovoltaic module can be rolled up along the first direction to reduce the space occupied by the photovoltaic module and transport more photovoltaic modules in the same volume of transport space.

[0042] It should be noted that the number of flexible power generation units 21 within each flexible power generation module 20 can be designed based on the size of the flexible power generation unit 21, the size of the photovoltaic module, and the size of the transport vehicle. No specific restrictions are imposed here; it is only necessary to ensure that the photovoltaic module can be rolled up along the first direction. For example, Figure 1 In the photovoltaic modules shown, each flexible power generation module 20 contains a flexible power generation unit 21. Figure 5 In the photovoltaic modules shown, each flexible power generation module 20 has two flexible power generation units 21.

[0043] Preferably, the first direction is perpendicular to the second direction. This vertical arrangement makes the photovoltaic module more stable when it is rolled up, effectively reducing the undue stress on the flexible power generation unit 21 during rolling up, and reducing the risk of microcracks in the solar cells 215 inside the flexible power generation unit 21.

[0044] Specifically, the number of flexible power generation units 21 arranged along the first direction is greater than the number of flexible power generation units 21 arranged along the second direction. This arrangement facilitates the roll-up of the photovoltaic modules along the first direction, thereby reducing the space occupied by the photovoltaic modules during transportation and making the transportation of the photovoltaic modules easier.

[0045] Since the photovoltaic module is rolled up along the first direction, that is, the first direction is the length direction, and the number of flexible power generation units 21 arranged along the second direction is too large, it is easy to increase the width of the photovoltaic module, which is not conducive to the transportation of the photovoltaic module.

[0046] like Figure 1 and Figure 2 As shown, the flexible power generation unit 21 includes a power generation main body 211, an insulating fixing layer 213, and at least two lead wires 212. The power generation main body 211 is connected to the flexible plate 10. The lead wires 212 are located on one side of the power generation main body 211. The insulating fixing layer 213 is attached to one side surface of the power generation main body 211, and the lead wires 212 are located between the insulating fixing layer 213 and the power generation main body 211. The at least two lead wires 212 include at least one positive lead wire and at least one negative lead wire. The power generation main body 211 includes multiple solar cells 215, and the lead wires 212 can electrically connect the power generation main body 211 to other structures, allowing the current generated by the power generation main body 211 to flow into other structures via the lead wires 212. The lead wires 212 are positioned on one side of the power generation main body 211 to facilitate connection with other structures. The insulating fixing layer 213 can fix the lead wires 212 to the power generation body 211 so that the photovoltaic module can be rolled into a roll structure, avoiding the risk of damage to the flexible power generation unit 21 caused by the lead wires 212 tangling together.

[0047] Optionally, the insulating fixing layer 213 is detachably connected to the power generation main body 211. When connecting the photovoltaic module to other structures, the insulating fixing layer 213 can be removed to facilitate the connection of the lead wire 212 to other structures. The insulating fixing layer 213 covers the lead wire 212 to prevent current from being drawn out before installation. Furthermore, using the insulating fixing layer 213 can reduce the impact of static electricity on the photovoltaic module. For example, the insulating fixing layer 213 can be an insulating high-temperature tape.

[0048] like Figure 2 and Figure 3As shown, the flexible power generation unit 21 also includes a junction box 214. The junction box 214 can collect the current generated by the solar cells 215 inside the flexible power generation unit 21 and output it to the external circuit through the terminal blocks. This is the interface for connecting the photovoltaic module to the external power system. The junction box 214 can safely disconnect the photovoltaic module. When maintenance is required or in an emergency, the connection between the photovoltaic module and the external power system can be quickly disconnected to ensure the safety of the operators.

[0049] In addition, junction boxes 214 are typically designed with waterproof and dustproof features to protect internal electrical components from external environmental influences and ensure long-term stable operation of photovoltaic modules in harsh outdoor environments.

[0050] In this invention, the junction box 214 and the lead wire 212 are detachably connected. This design allows the junction box 214 to be installed and removed according to the different states of the photovoltaic module, which is beneficial for the safe use of the photovoltaic module. During transportation, the junction box 214 and the lead wire 212 are not connected, which facilitates the winding of the photovoltaic module into a roll structure for easy transport, reduces the impact of winding on the junction box 214, and ensures the safe operation of the junction box 214. During photovoltaic module installation, the junction box 214 is connected to the lead wire 212, and the junction box 214 is used to connect to the external power system.

[0051] If the junction box 214 and the lead wire 212 are already connected during the transportation of the photovoltaic module, the electrical components inside the junction box 214 may be damaged due to bending and squeezing when the photovoltaic module is rolled into a roll. By adopting a detachable connection design, the junction box 214 can be separated from the main power generation unit 211 during the transportation of the photovoltaic module, reducing the risk of damage to the junction box 214 during transportation.

[0052] like Figure 4 As shown, when junction box 214 and lead wire 212 are connected, lead wire 212 can be stood upright and connected to junction box 214.

[0053] In some alternative embodiments, the photovoltaic module further includes a connecting film layer located between the flexible power generation module 20 and the flexible plate 10. By providing a connecting film layer between the flexible power generation module 20 and the flexible plate 10, the tightness of the connection between the flexible power generation module 20 and the flexible plate 10 can be increased, reducing the risk of the flexible power generation module 20 detaching from the flexible plate 10.

[0054] Specifically, the flexible panel 10, the connecting film layer, and the flexible power generation module 20 are integrally laminated. During the lamination process, the connecting film layer melts and flows under high temperature and pressure, filling the tiny gaps between the flexible power generation module 20 and the flexible panel 10 to form a seamless adhesive interface. This tight bond enhances the mechanical strength of the photovoltaic module, allowing the flexible power generation module 20 to be firmly attached to the flexible panel 10, maintaining the stability and integrity of the photovoltaic structure even under long-term outdoor use.

[0055] Optionally, the connecting membrane layer includes one of ethylene-vinyl acetate copolymer (EVA), polyolefin elastomer (POE), and polyvinyl butyral (PVB).

[0056] In some alternative embodiments, please refer to Figure 1 The sum of the length L1 of the flexible power generation module 20 in the first direction and the first distance L2 between two adjacent flexible power generation modules 20 is the cutting length D. The length of the flexible plate 10 in the first direction is an integer multiple of the cutting length D. This arrangement facilitates the cutting of photovoltaic modules according to the actual needs of the construction site. When cutting photovoltaic modules, the cutting is performed in integer multiples of the cutting length D to avoid damaging the flexible power generation module 20.

[0057] Optionally, the flexible panel 10 includes a first side 11 and a second side 12 perpendicular to the first direction. The minimum distance from the flexible power generation module 20 to the first side 11 is greater than or equal to half of the first distance L2, and the minimum distance from the flexible power generation module 20 to the second side 12 is greater than or equal to half of the first distance L2. The area between the flexible power generation module 20 and the first side 11 in the flexible panel 10 is designated as the first region 13, and the area between the flexible power generation module 20 and the second side 12 in the flexible panel 10 is designated as the second region 14. This arrangement facilitates secondary processing of the first region 13 and the second region 14, making it advantageous for processing into building materials of various shapes.

[0058] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0059] 1. The photovoltaic module in this utility model can be rolled into a roll structure, which facilitates the transportation of the photovoltaic module.

[0060] 2. The photovoltaic modules in this utility model can be cut to size according to actual needs, making the photovoltaic modules more flexible in use.

[0061] 3. The photovoltaic modules in this utility model can be used directly as building materials, and the flexible panels 10 can be further processed on-site to form building materials of various shapes.

[0062] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0063] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0064] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0065] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A photovoltaic module, characterized by, include: A flexible plate (10) extending along a first direction; Multiple flexible power generation modules (20) are arranged at intervals on the flexible plate (10) along the first direction, and the flexible power generation modules (20) are arranged at intervals with the circumferential side of the flexible plate (10) so that the photovoltaic module can be rolled into a roll structure. The flexible power generation module (20) includes at least one flexible power generation unit (21). When there are multiple flexible power generation units (21), the multiple flexible power generation units (21) extend along a second direction, wherein the first direction intersects with the second direction. The flexible power generation unit (21) includes: The main power generation unit (211) is connected to the flexible plate (10); At least two leads (212) are located on one side of the power generation body (211); An insulating fixing layer (213) is attached to the power generation main body (211), and the lead wire (212) is located between the insulating fixing layer (213) and the power generation main body (211). Among them, the at least two leads (212) include at least one positive lead and at least one negative lead; The flexible power generation unit (21) also includes a junction box (214), which is detachably connected to the lead wire (212); The insulating fixing layer (213) is detachably connected to the power generation main body (211).

2. The photovoltaic module of claim 1, wherein, The number of flexible power generation units (21) arranged along the first direction is greater than the number of flexible power generation units (21) arranged along the second direction.

3. The photovoltaic module according to any of claims 1 to 2, characterized in that, The photovoltaic module also includes a connecting film layer located between the flexible power generation module (20) and the flexible plate (10).

4. The photovoltaic module of claim 3, wherein, The flexible plate (10), the connecting membrane layer and the flexible power generation module (20) are integrally laminated.

5. The photovoltaic module according to any of claims 1 to 2, characterized in that, The sum of the length L1 of the flexible power generation module (20) in the first direction and the first distance L2 between two adjacent flexible power generation modules (20) is the cutting length D, and the length of the flexible plate (10) in the first direction is an integer multiple of the cutting length D.

6. The photovoltaic module of claim 5, wherein, The flexible plate (10) includes a first side (11) and a second side (12) perpendicular to the first direction. The minimum distance from the flexible power generation module (20) to the first side (11) is greater than or equal to half of the first distance L2, and the minimum distance from the flexible power generation module (20) to the second side (12) is greater than or equal to half of the first distance L2.

7. The photovoltaic module according to any of claims 1 to 2, characterized in that, The flexible plate (10) includes a metal profiled plate.

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