Photovoltaic folding panel

Abstract

The utility model discloses a kind of photovoltaic folding boards, it is related to solar energy equipment technical field, wherein, photovoltaic folding board includes photovoltaic board module and support module, photovoltaic board module includes at least two photovoltaic boards, photovoltaic board is equipped with opposite power generation side and support side, on photovoltaic board, junction box is equipped with at least two wiring ends, at least one wiring end is electrically connected with the wiring end on another photovoltaic board;Support module is equipped in support side, including main support rod and vice support rod, the connecting end of main support rod is rotatably connected with photovoltaic board, the free end of main support rod is abutted with the placement surface of photovoltaic board, vice support rod includes the first hinged rod rotatably connected with photovoltaic board, and the second hinged rod rotatably connected with main support rod, the first hinged rod is hinged with the second hinged rod, to be able to adjust the support angle of photovoltaic board on placement surface.The technical scheme provided by the utility model can provide a kind of photovoltaic folding board, and support angle adjustable, and output power adjustable.

Description

Technical Field

[0001] This utility model relates to the field of solar energy equipment technology, and in particular to a photovoltaic folding plate. Background Technology

[0002] Currently, most photovoltaic (PV) panels on the market adopt an integrated wiring design, meaning multiple PV panels are integrated into the same wiring system via pre-set series or parallel lines, with each PV panel lacking an independent wiring output unit. This design results in a fixed power output mode for the PV panels, making it impossible to flexibly adjust according to actual power generation needs: when a small independent output is required, the integrated wiring system makes it difficult to separate individual PV panels for individual power supply; when the overall output power needs to be increased, additional complex external adapters are required to connect multiple PV panels in series and parallel. This increases equipment costs and installation complexity, and may also lead to increased circuit losses due to too many external adapter nodes, affecting overall power generation efficiency.

[0003] Regarding the support structure of photovoltaic panels, existing support devices mostly adopt a fixed bracket design. Although fixed brackets are simple in structure and low in cost, they cannot adjust the tilt angle of the photovoltaic panels according to the angle of sunlight in different regions and seasonal changes. This results in the photovoltaic panels not always maintaining the optimal posture for receiving sunlight, thus reducing the utilization rate of solar energy. Utility Model Content

[0004] The main objective of this invention is to provide a photovoltaic folding panel that aims to solve at least one of the aforementioned problems.

[0005] To achieve the above objectives, the photovoltaic folding panel proposed in this utility model includes: A photovoltaic module includes at least two photovoltaic panels, each photovoltaic panel having a power generation side and a support side opposite to each other. On the support side, each photovoltaic panel has a junction box with at least two terminals, and at least one of the terminals is electrically connected to a terminal on the other photovoltaic panel. A support module, located on the support side, includes a main support rod and a secondary support rod. The connecting end of the main support rod is rotatably connected to the photovoltaic panel, and the free end of the main support rod abuts against the placement surface of the photovoltaic panel. The secondary support rod includes a first hinge rod rotatably connected to the photovoltaic panel and a second hinge rod rotatably connected to the main support rod. The first hinge rod and the second hinge rod are hinged to adjust the support angle of the photovoltaic panel on the placement surface.

[0006] In one embodiment, when the photovoltaic panel includes at least three photovoltaic panels, the two terminals of the photovoltaic panel are electrically connected to two adjacent photovoltaic panels, respectively.

[0007] In one embodiment, one terminal of the photovoltaic panel is electrically connected to an adjacent photovoltaic panel, and the other terminal is electrically connected to an external electrical device.

[0008] In one embodiment, the photovoltaic module further includes a frame surrounding the photovoltaic panel, wherein the thickness of the frame on the supporting side is greater than the thickness of the junction box.

[0009] In one embodiment, the support module has a supported state and a retracted state. In the supported state, the free end rotates away from the photovoltaic panel and abuts against the placement surface, and the opposite ends of the secondary support rod abut against the photovoltaic panel and the main support rod, respectively. In the retracted state, the main support rod overlaps with the photovoltaic panel, and the inner side of the main support rod and the photovoltaic panel enclose a receiving space. The first hinge rod is located in the receiving space, and the second hinge rod is located on the outer side of the main support rod.

[0010] In one embodiment, the first hinge rod and the second hinge rod are connected by a hand-tightening bolt. In the supported state, the hand-tightening bolt can adjust the support angle between the first hinge rod and the second hinge rod. In the retracted state, the hand-tightening part of the hand-tightening bolt is exposed on the outside of the main support rod.

[0011] In one embodiment, the main support rod has a clearance notch on its side wall, and in the retracted state, at least a portion of the stud of the hand-tightening bolt is located in the clearance notch.

[0012] In one embodiment, a first fixing plate is provided on the side of the photovoltaic panel near the free end, the first fixing plate is hinged to the photovoltaic panel, and a second fixing plate is provided on the free end, the second fixing plate is hinged to the main support rod. Both the first fixing plate and the second fixing plate are provided with through holes. In the supported state, fasteners pass through the through holes to connect the first fixing plate and the second fixing plate to the placement surface.

[0013] In one embodiment, in the stored state, the first fixing plate and the second fixing plate rotate to fit against the photovoltaic panel.

[0014] In one embodiment, the main support rod is provided with a connecting rod near the free end. The connecting rod is hinged to the second fixing plate. In the supported state, the connecting rod abuts against the placement surface. In the stored state, the inner side of the connecting rod encloses a storage space, and the second fixing plate is located in the storage space.

[0015] In one embodiment, the photovoltaic module further includes a hinged joint, through which adjacent photovoltaic panels are connected. When the photovoltaic module includes at least three photovoltaic panels, the photovoltaic module has a first-end photovoltaic panel, at least one middle-section photovoltaic panel, and a last-end photovoltaic panel connected in sequence. On opposite sides of the middle-section photovoltaic panel, the hinged joint is respectively disposed on the power generation side and the support side of the middle-section photovoltaic panel.

[0016] In this invention, by equipping each photovoltaic panel with an independent junction box and at least two terminals, a flexible and controllable power output system is formed. When low-power independent output is required (e.g., outdoor temporary lighting, power supply for small devices), each photovoltaic panel can supply power independently without disassembling the integrated wiring system or carrying additional small photovoltaic panels. A single photovoltaic panel can directly output power through its own junction box, eliminating reliance on external adapters and significantly reducing the cost and operational complexity of small-scale applications.

[0017] When high power output is required (e.g., outdoor power supply to high-power equipment), the terminals of multiple photovoltaic panels can be directly connected to each other without the need for additional complex adapters, achieving series and parallel combinations. This plug-and-play connection method not only reduces circuit losses caused by too many external adapter nodes but also lowers installation complexity. Furthermore, the multi-terminal design improves interface compatibility, avoiding problems such as insufficient terminal quantity in junction boxes and inflexible connection, thus realizing a shift in power output from a "fixed mode" to "on-demand adjustment."

[0018] The main support rod is rotatably connected to the photovoltaic panel. Combined with the movable structure of the first and second hinged rods in the secondary support rod, the support angle of the photovoltaic panel on the placement surface can be flexibly adjusted. This allows the photovoltaic panel's posture to be adjusted according to the angle of sunlight and seasonal changes, ensuring the panel always maintains the optimal angle for receiving sunlight, significantly improving solar energy conversion efficiency and avoiding energy waste caused by a fixed angle.

[0019] The support module features multi-node hinged load-bearing capacity, enhancing its wind and deformation resistance. Through multi-node rotatable connections between the photovoltaic panels, main support rods, and secondary support rods, the support module forms a three-dimensional force-bearing structure. This disperses the stress points on the photovoltaic panels, improves support rigidity, and effectively reduces the swaying and deformation of the photovoltaic panels in harsh environments such as strong winds and heavy rain. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of an embodiment of the photovoltaic folding panel provided by this utility model; Figure 2 for Figure 1 The diagram shown is a structural schematic of the embodiment in a supported state. Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 for Figure 3 A partial structural diagram of the embodiment shown; Figure 5 for Figure 3 A partial structural diagram of the central support module in its stowed state; Figure 6 for Figure 1 A partial structural diagram of the central support module in its stowed state; Figure 7 for Figure 1 The diagram shown is a structural schematic of the embodiment in its stowed state. Figure 8 for Figure 7 A magnified view of a section at point B in the middle; Figure 9 for Figure 7 A magnified view of a section at point C; Figure 10 The diagram shown is a structural schematic of the embodiment in its stored state.

[0022] Explanation of icon numbers: 100. Photovoltaic panel module; 11. Photovoltaic panel; 111. Power generation side; 112. Support side; 12. Junction box; 121. Terminal; 13. Frame; 14. Hinge; 15. First photovoltaic panel; 16. Middle photovoltaic panel; 17. Last photovoltaic panel; 200. Support module; 21. Main support rod; 211. Connecting end; 212. Free end; 213. Reception space; 214. Clearance notch; 215. Connecting rod; 216. Storage space; 22. Secondary support rod; 221. First hinge rod; 222. Second hinge rod; 223. Hand-tightening bolt; 224. Hand-tightening part; 23. First fixing plate; 231. Through hole; 24. Second fixing plate.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] This utility model proposes a photovoltaic folding plate.

[0028] Please see Figures 1 to 10 In one embodiment of this utility model, the photovoltaic folding panel includes: The photovoltaic panel 11 module 100 includes at least two photovoltaic panels 11. Each photovoltaic panel 11 has a power generation side 111 and a support side 112. On the support side 112, the photovoltaic panel 11 is provided with a junction box 12. The junction box 12 is provided with at least two terminals 121, and at least one terminal 121 is electrically connected to a terminal 121 on another photovoltaic panel 11. The support module 200, located on the support side 112, includes a main support rod 21 and a secondary support rod 22. The connecting end 211 of the main support rod 21 is rotatably connected to the photovoltaic panel 11, and the free end 212 of the main support rod 21 abuts against the placement surface of the photovoltaic panel 11. The secondary support rod 22 includes a first hinge rod 221 rotatably connected to the photovoltaic panel 11 and a second hinge rod 222 rotatably connected to the main support rod 21. The first hinge rod 221 and the second hinge rod 222 are hinged to adjust the support angle of the photovoltaic panel 11 on the placement surface.

[0029] In this invention, by equipping each photovoltaic panel 11 with an independent junction box 12 and at least two terminals 121, a flexible and controllable power output system is formed. When low-power independent output is required (e.g., outdoor temporary lighting, power supply for small devices), the photovoltaic panel 11 can supply power independently without disassembling the integrated wiring system or carrying additional small photovoltaic panels 11. A single photovoltaic panel 11 can directly output power through its own junction box 12, eliminating dependence on external adapters and significantly reducing the cost and operational difficulty of small-scale applications.

[0030] When high power output is required (e.g., outdoor power supply to high-power electrical equipment), the terminals 121 of multiple photovoltaic panels 11 can be directly connected to each other without the need for additional complex adapters, thus achieving series and parallel connection. This plug-and-play connection method not only reduces circuit losses caused by too many external adapter nodes but also lowers installation complexity. At the same time, the multi-terminal design 121 improves interface compatibility, avoiding problems such as insufficient number of terminals 121 in the junction box 12 and inflexible connection, realizing the transformation of power output from a "fixed mode" to "on-demand adjustment".

[0031] The main support rod 21 is rotatably connected to the photovoltaic panel 11. Together with the movable structure of the first hinge rod 221 and the second hinge rod 222 in the secondary support rod 22, the support angle of the photovoltaic panel 11 on the placement surface can be flexibly adjusted. Specifically, by adjusting the support angle between the first hinge rod 221 and the second hinge rod 222, the angle between the main support rod 21 and the photovoltaic panel 11 can be adjusted, thereby achieving an angle change between the photovoltaic panel 11 and the placement surface. This allows the posture of the photovoltaic panel 11 to be adjusted according to the angle of sunlight and seasonal changes, ensuring that the photovoltaic panel 11 always maintains the optimal angle for receiving sunlight, significantly improving solar energy conversion efficiency and avoiding energy waste caused by a fixed angle.

[0032] The support module 200 features multi-node hinged load-bearing capacity, enhancing its wind and deformation resistance. Through multi-node rotatable connections between the photovoltaic panel 11, main support rod 21, and secondary support rod 22, the support module 200 forms a three-dimensional force-bearing structure. This disperses the stress points of the photovoltaic panel 11, improves support rigidity, and effectively reduces the swaying and deformation of the photovoltaic panel 11 in harsh environments such as strong winds and heavy rain.

[0033] In one embodiment, when the photovoltaic panel 11 includes at least three photovoltaic panels 11, the photovoltaic panel 11 module 100 has a first-end photovoltaic panel 15, at least one middle-section photovoltaic panel 16, and a last-end photovoltaic panel 17 connected in sequence. The two terminals 121 of the middle-section photovoltaic panel 16 can be electrically connected to two adjacent photovoltaic panels 11, respectively. Of course, the adjacent photovoltaic panel 11 can be another middle-section photovoltaic panel 16, or it can be the first-end photovoltaic panel 15 or the last-end photovoltaic panel 17. That is, multiple photovoltaic panels 11 are connected in series to meet high-power charging or power consumption needs. In other embodiments, one terminal 121 of the middle-section photovoltaic panel 16 can be electrically connected to an adjacent photovoltaic panel 11, and the other terminal 121 can be electrically connected to an external electrical device.

[0034] Furthermore, one terminal 121 of the first photovoltaic panel 15 and / or the last photovoltaic panel 17 is electrically connected to the adjacent photovoltaic panel 11, and the other terminal 121 is electrically connected to an external electrical device to achieve current output. In other embodiments, only one of the first photovoltaic panel 15 and the last photovoltaic panel 17 may be electrically connected to the external electrical device.

[0035] In one embodiment, the photovoltaic panel 11 module 100 further includes a frame 13 surrounding the photovoltaic panel 11, the thickness of the frame 13 on the supporting side 112 being greater than the thickness of the junction box 12. That is, in the folded state, multiple photovoltaic panels 11 are stacked together to reduce the space occupied by storage. When the photovoltaic panels 11 are folded together for storage, the junction box 12 can be stored between two photovoltaic panels 11, preventing the junction box 12 from interfering with the storage of the folded photovoltaic panel. In other embodiments, the junction box 12 and the photovoltaic panel 11 can be detached, so that when the folded photovoltaic panel needs to be changed to the folded state, the junction box 12 needs to be removed from the photovoltaic panel 11.

[0036] In one embodiment, the photovoltaic module further includes hinges 14, through which adjacent photovoltaic panels 11 are connected. When the photovoltaic panel module 100 includes at least three photovoltaic panels 11, the hinges 14 are respectively disposed on the power generation side 111 and the support side 112 of the middle photovoltaic panel 16 on opposite sides. Specifically, the hinges 14 are mounted on the frame 13. That is, when the photovoltaic folding panel changes to a retracted state, the photovoltaic panel 11 on one side of the middle photovoltaic panel 16 rotates towards the power generation side 111, and the other side rotates towards the support side 112, so that multiple photovoltaic panels 11 are stacked and retracted in the thickness direction. In other embodiments, there may be no hinges 14 between multiple photovoltaic panels 11, that is, there is no constraint structure between adjacent photovoltaic panels 11, and during the process of changing to a retracted state, the photovoltaic panels 11 are manually stacked in the thickness direction by the user.

[0037] In one embodiment, the support module 200 has a supported state and a retracted state. In the supported state, the free end 212 rotates away from the photovoltaic panel 11 and abuts against the placement surface, and the opposite ends of the secondary support rod 22 abut against the photovoltaic panel 11 and the main support rod 21, respectively. In the retracted state, the main support rod 21 overlaps with the photovoltaic panel 11, and the inner side of the main support rod 21 and the photovoltaic panel 11 enclose a receiving space 213. The first hinge rod 221 is located in the receiving space 213, and the second hinge rod 222 is located on the outer side of the main support rod 21. In the retracted state, the entire support module 200 is tightly fitted to the photovoltaic panel 11 without any extra protruding structures. The overall thickness of the photovoltaic folding panel in the retracted state is significantly reduced, which can save more storage and transportation space during stacking and transportation, and reduce the transportation and storage costs per unit product, making it particularly suitable for long-distance transportation and large-scale batch storage scenarios. In the stored state, the first hinge rod 221 and the second hinge rod 222 are effectively protected by the receiving space 213 and the external fixation. The second hinge rod 222 can be stored between two adjacent photovoltaic panels 11, avoiding problems such as deformation of the auxiliary support rod 22 and loosening of the hinge joint of the first hinge rod 221 and the second hinge rod 222 caused by external collisions during transportation or storage.

[0038] In its stowed state, the storage space 213 is formed by the inner side of the main support rod 21 and the photovoltaic panel 11. That is, the formation of the storage space 213 reuses the structure of the main support rod 21, avoiding redundant additional components. There is no need to set up additional dedicated storage slots or fixing buckles, making full use of the existing structural space of the main support rod 21 and avoiding problems such as structural complexity and increased weight caused by adding extra components to achieve the storage function.

[0039] It should be noted that currently available support devices for adjusting the angle of the photovoltaic panel 11 require the assembly of support rods one by one and the adjustment of bolt positions, resulting in a cumbersome installation process. The structural design of the main support rod 21 and the secondary support rod 22 facilitates rapid transitions between the supported and retracted states. Specifically, in the supported state, the free end 212 of the main support rod 21 only needs to be rotated away from the photovoltaic panel 11 and abut against the placement surface. The secondary support rod 22 can then naturally unfold through its own hinge structure, with both ends abutting against the photovoltaic panel 11 and the main support rod 21 respectively, eliminating the need for complex assembly steps. This makes switching between the retracted and supported states more convenient, allowing even non-professional installers to quickly unfold and fix the support module 200, significantly reducing on-site installation time costs and operational barriers.

[0040] Of course, in other embodiments, the support module 200 may not have a retracted state, and the support module 200 and the photovoltaic module may be detached. When the photovoltaic folding plate changes to a retracted state, the support module 200 is detached from the photovoltaic plate 11.

[0041] In one embodiment, the first hinge rod 221 and the second hinge rod 222 are connected by a hand-tightening bolt 223. In the supported state, the hand-tightening bolt 223 can adjust the support angle between the first hinge rod 221 and the second hinge rod 222. In the retracted state, the hand-tightening part 224 of the hand-tightening bolt 223 is exposed on the outside of the main support rod 21. In the supported state, without the need for additional tools such as wrenches or screwdrivers, the relative angle between the first hinge rod 221 and the second hinge rod 222 can be adjusted simply by manually rotating the hand-tightening bolt 223, thereby changing the support tilt of the photovoltaic panel 11. Even non-professionals working outdoors can quickly complete the angle adjustment, which is especially suitable for scenarios where the angle of sunlight needs to be adjusted temporarily (such as during seasonal changes or weather changes), improving the ease of use of the product. Moreover, the hand-tightening bolt 223 can achieve micro-angle adjustment between the first hinge rod 221 and the second hinge rod 222 by controlling the rotation force, and the angle can be stably locked after adjustment to prevent the tilt of the photovoltaic panel 11 from shifting due to loosening of the support structure. By accurately matching the real-time angle of sunlight, the solar energy conversion efficiency is enhanced, and the photovoltaic panel 11 can always maintain the best posture for receiving sunlight. This is especially helpful in areas where the angle of sunlight changes frequently (such as high-latitude regions and cloudy weather), which helps to improve the overall power generation efficiency.

[0042] In the retracted state, the main support rod 21 overlaps with the photovoltaic panel 11, the first hinge rod 221 is housed within the internal space, and the hand-tightening part 224 is exposed on the outside of the main support rod 21, allowing direct access to the hand-tightening bolt 223 without disassembling the overall structure. When switching from the retracted state to the supported state, the bolt can be unlocked directly through the exposed hand-tightening part 224 to quickly unfold the secondary support rod 22; conversely, it can also be easily locked through the exposed hand-tightening part 224 during retraction, helping to shorten the time for switching between the supported and retracted states and improving operational efficiency.

[0043] Of course, in other embodiments, the first hinge rod 221 and the second hinge rod 222 may be fixed by an external clamping member, such as a movable claw.

[0044] In one embodiment, the main support rod 21 has a clearance notch 214 on its side wall. In the retracted state, at least a portion of the stud of the hand-tightening bolt 223 is located in the clearance notch 214. This allows the support module 200 in the retracted state to fit tightly against the photovoltaic panel 11. In other embodiments, the second hinge rod 222 may also be located within the receiving space 213.

[0045] In one embodiment, a first fixing plate 23 is provided on the side of the photovoltaic panel 11 near the free end 212. The first fixing plate 23 is hinged to the photovoltaic panel 11. A second fixing plate 24 is provided on the free end 212. The second fixing plate 24 is hinged to the main support rod 21. Both the first fixing plate 23 and the second fixing plate 24 are provided with through holes 231. In the supported state, fasteners pass through the through holes 231 to connect the first fixing plate 23 and the second fixing plate 24 to the placement surface. The first fixing plate 23 and the second fixing plate 24 can be flush with the placement surface to enhance the connection with the placement surface in the supported state, making the support of the photovoltaic panel 11 on the placement surface more stable and enhancing wind and shock resistance. Further, the fastener can be a ground nail or a bolt. In other embodiments, the first fixing plate 23 and the second fixing plate 24 may not be provided.

[0046] In one embodiment, in the retracted state, the first fixing plate 23 and the second fixing plate 24 rotate to fit against the photovoltaic panel 11. Further, the main support rod 21 has a connecting rod 215 near its free end 212. The connecting rod 215 is hinged to the second fixing plate 24. In the supported state, the connecting rod 215 abuts against the placement surface. In the retracted state, the inner side of the connecting rod 215 encloses a storage space 216, and the second fixing plate 24 is located in the storage space 216. This allows the support module 200 in the retracted state to fit tightly against the photovoltaic panel 11. In other embodiments, the connecting rod 215 may be omitted.

[0047] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A photovoltaic folding panel, characterized in that, include: A photovoltaic module includes at least two photovoltaic panels, each photovoltaic panel having a power generation side and a support side opposite to each other. On the support side, each photovoltaic panel has a junction box with at least two terminals, and at least one of the terminals is electrically connected to a terminal on the other photovoltaic panel. A support module, located on the support side, includes a main support rod and a secondary support rod. The connecting end of the main support rod is rotatably connected to the photovoltaic panel, and the free end of the main support rod abuts against the placement surface of the photovoltaic panel. The secondary support rod includes a first hinge rod rotatably connected to the photovoltaic panel and a second hinge rod rotatably connected to the main support rod. The first hinge rod and the second hinge rod are hinged to adjust the support angle of the photovoltaic panel on the placement surface.

2. The photovoltaic folding panel as described in claim 1, characterized in that, When the photovoltaic panel includes at least three photovoltaic panels, the two terminals of the photovoltaic panel are respectively electrically connected to the two adjacent photovoltaic panels. Alternatively, one terminal of the photovoltaic panel is electrically connected to an adjacent photovoltaic panel, and the other terminal is electrically connected to an external electrical device.

3. The photovoltaic folding panel as described in claim 1, characterized in that, The photovoltaic module also includes a frame surrounding the photovoltaic panel, wherein the thickness of the frame on the supporting side is greater than the thickness of the junction box.

4. The photovoltaic folding panel as described in claim 1, characterized in that, The support module has a supported state and a retracted state. In the supported state, the free end rotates away from the photovoltaic panel and abuts against the placement surface, and the opposite ends of the secondary support rod abut against the photovoltaic panel and the main support rod, respectively. In the retracted state, the main support rod overlaps with the photovoltaic panel, and the inner side of the main support rod and the photovoltaic panel enclose a receiving space. The first hinge rod is located in the receiving space, and the second hinge rod is located on the outer side of the main support rod.

5. The photovoltaic folding panel as described in claim 4, characterized in that, The first hinge rod and the second hinge rod are connected by a hand-tightening bolt. In the supported state, the hand-tightening bolt can adjust the support angle between the first hinge rod and the second hinge rod. In the retracted state, the hand-tightening part of the hand-tightening bolt is exposed on the outside of the main support rod.

6. The photovoltaic folding panel as described in claim 5, characterized in that, The main support rod has a clearance notch on its side wall, and in the retracted state, at least a portion of the stud of the hand-tightening bolt is located in the clearance notch.

7. The photovoltaic folding panel as described in claim 4, characterized in that, A first fixing plate is provided on the side of the photovoltaic panel near the free end. The first fixing plate is hinged to the photovoltaic panel. A second fixing plate is provided on the free end. The second fixing plate is hinged to the main support rod. Both the first fixing plate and the second fixing plate are provided with through holes. In the supported state, fasteners pass through the through holes to connect the first fixing plate and the second fixing plate to the placement surface.

8. The photovoltaic folding panel as described in claim 7, characterized in that, In the stored state, the first fixing plate and the second fixing plate rotate to fit against the photovoltaic panel.

9. The photovoltaic folding panel as described in claim 8, characterized in that, The main support rod is provided with a connecting rod near the free end. The connecting rod is hinged to the second fixing plate. In the supported state, the connecting rod abuts against the placement surface. In the stored state, the inner side of the connecting rod encloses a storage space, and the second fixing plate is located in the storage space.

10. The photovoltaic folding panel as described in claim 1, characterized in that, The photovoltaic panel module also includes hinges, and adjacent photovoltaic panels are connected by the hinges. When the photovoltaic panel module includes at least three photovoltaic panels, the photovoltaic panel module has a first photovoltaic panel, at least one middle photovoltaic panel and a last photovoltaic panel connected in sequence. On opposite sides of the middle photovoltaic panel, the hinges are respectively located on the power generation side and the support side of the middle photovoltaic panel.

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