Photovoltaic apparatus

Abstract

A photovoltaic apparatus (1000), comprising a plurality of photovoltaic devices (100) and a plurality of adapters (200), wherein each photovoltaic device (100) comprises a photovoltaic panel (10) and a frame (20); the frame (20) wraps the edge of the photovoltaic panel (10); each adapter (200) is connected to the frames (20) of corresponding two adjacent photovoltaic devices (100), so that the two adjacent photovoltaic devices (100) are rotatably connected. The photovoltaic apparatus (1000) can be in a folded state or an unfolded state; when the photovoltaic apparatus (1000) is in the folded state, the plurality of photovoltaic devices (100) are stacked; when the photovoltaic apparatus (1000) is in the unfolded state, each frame (20) abuts against a corresponding bearing surface, and a predetermined angle is kept between two adjacent photovoltaic devices (100) by means of the corresponding adapter (200).

Description

Photovoltaic device

[0001] Priority information

[0002] This application claims priority to and the benefit of Chinese Patent Application Nos. 202411045860.7 and 202411057227.X, filed on July 31, 2024, Chinese Patent Application No. 202411265921.0, filed on September 9, 2024, and Chinese Patent Application No. 202411414743.3, filed on October 10, 2024, and incorporates by reference the entire contents of each of the foregoing applications. TECHNICAL FIELD

[0003] The present application relates to the technical field of photovoltaic devices, and more particularly, to a photovoltaic device. BACKGROUND

[0004] A photovoltaic panel is a device that converts solar energy into light energy. In order to reduce the power generation and make the photovoltaic panel easy to carry, it is often necessary to electrically connect multiple photovoltaic panels. How to use the photovoltaic panel more conveniently becomes a technical problem to be solved. SUMMARY

[0005] Embodiments of the present application provide a photovoltaic device.

[0006] A photovoltaic device includes a plurality of photovoltaic devices and a plurality of adapters, the photovoltaic device includes a photovoltaic panel and a frame, the frame wraps the edge of the photovoltaic panel, the adapter connects the frames of two adjacent photovoltaic devices, so that the two adjacent photovoltaic devices are rotationally connected, the photovoltaic device can be in a folded state and an unfolded state, when the photovoltaic device is in the folded state, the plurality of photovoltaic devices are arranged in a stacked manner, when the photovoltaic device is in the unfolded state, the frame abuts against a bearing surface, and the two adjacent photovoltaic devices are kept at a predetermined angle by the adapter.

[0007] In this way, the photovoltaic device is convenient to store and transport when folded, the angle between the two adjacent photovoltaic devices is limited to a predetermined angle by the adapter when the photovoltaic device is in the unfolded state, so that the state of the photovoltaic device is kept stable, the light exposure area of the photovoltaic device is increased, and the photovoltaic device is beneficial to convert solar energy into electrical energy.

[0008] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0009] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings of which:

[0010] Fig. 1 is a perspective view of a photovoltaic device in a folded state according to an embodiment of the present application;

[0011] Fig. 2 is a perspective view of the photovoltaic device in an unfolded state according to an embodiment of the present application;

[0012] Fig. 3 is a plan view of the photovoltaic device in a folded state according to an embodiment of the present application;

[0013] Fig. 4 is another perspective view of the photovoltaic device in an unfolded state according to an embodiment of the present application;

[0014] Fig. 5 is another perspective view of the photovoltaic device of Fig. 4;

[0015] Fig. 6 is a partially enlarged view of the photovoltaic device in a folded state according to an embodiment of the present application;

[0016] Fig. 7 is a perspective view of a photovoltaic apparatus according to an embodiment of the present application;

[0017] Fig. 8 is another perspective view of the photovoltaic apparatus according to an embodiment of the present application;

[0018] Fig. 9 is a plan view of the photovoltaic apparatus according to an embodiment of the present application;

[0019] Fig. 10 is a perspective view of a first junction box of the photovoltaic apparatus according to an embodiment of the present application;

[0020] Fig. 11 is an exploded view of the first junction box of the photovoltaic apparatus according to an embodiment of the present application;

[0021] Fig. 12 is a perspective view of a frame of the photovoltaic apparatus according to an embodiment of the present application;

[0022] Fig. 13 is an exploded view of the frame of the photovoltaic apparatus according to an embodiment of the present application;

[0023] Fig. 14 is a partially enlarged view of the frame of the photovoltaic apparatus according to an embodiment of the present application;

[0024] Fig. 15 is a partially enlarged view of the photovoltaic device in an unfolded state according to an embodiment of the present application;

[0025] Fig. 16 is a perspective view of an adapter according to an embodiment of the present application;

[0026] Fig. 17 is another perspective view of the adapter according to an embodiment of the present application;

[0027] Fig. 18 is an exploded view of the adapter according to an embodiment of the present application;

[0028] Fig. 19 is a partially enlarged schematic view of the photovoltaic device in an unfolded state according to an embodiment of the present application;

[0029] Fig. 20 is a perspective view of an adapter according to an embodiment of the present application;

[0030] Fig. 21 is another perspective view of the adapter according to an embodiment of the present application;

[0031] Fig. 22 is an exploded view of the adapter according to an embodiment of the present application;

[0032] Fig. 23 is a partially enlarged schematic view of the photovoltaic device in an unfolded state according to an embodiment of the present application;

[0033] Fig. 24 is a perspective view of an adapter according to an embodiment of the present application;

[0034] Fig. 25 is an exploded view of the adapter according to an embodiment of the present application;

[0035] Fig. 26 is another exploded view of the adapter according to an embodiment of the present application.

[0036] Explanation of reference signs: 1000-photovoltaic device; 100-photovoltaic device; 101-first photovoltaic device; 102-second photovoltaic device; 110-accommodation space; 10-photovoltaic panel; 11-substrate; 12-cell; 13-light-transmitting cover plate; 14-positive electrode wiring; 141-first positive electrode end; 142-second positive electrode end; 15-negative electrode wiring; 151-first negative electrode end; 152-second negative electrode end; 16-positive electrode lead wire; 161-positive electrode lead section; 17-negative electrode lead wire; 171-negative electrode lead section; 20-bezel; 21-enclosing member; 210-insertion hole; 211-long member; 212-short member; 213-through hole; 22-connection member; 221-connection part; 222-insertion part; 223-threaded hole; 23-indicia; 24-mounting groove; 25-mounting hole; 30-junction box; 31-first junction box; 32-second junction box; 321-box body; 3211-receiving space; 3212-insertion port; 3213-opening; 3214-limiting rib; 322-box cover; 323-wiring seat; 3231-limiting groove; 33-cable; 40-first cylindrical part; 50-second cylindrical part; 200-adaptor; 201-first rotating member; 2011-first adaptor hole; 2012-first clamping groove; 2013-first adaptor part; 2014-first mounting part; 2015-first abutting part; 202-second rotating member; 2021-second adaptor hole; 2022-second clamping groove; 2023-second adaptor part; 2024-second mounting part; 2025-second abutting part; 2027-second avoiding groove; 2028-first avoiding groove; 203-rotation shaft; 204-handle; 205-elastic member; 206-first damping member; 2061-perforation; 207-locking member; 2071-first locking section; 2072-second locking section; 2073-end part; 208-second damping member. DETAILED DESCRIPTION

[0037] Embodiments of the present application are described in detail below with reference to the attached drawings, wherein like or similar elements are denoted by the same or similar reference signs throughout the drawings. The embodiments described below are examples only, and are not intended to limit the present application.

[0038] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of a first feature to a second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is horizontally higher than the second feature. "Under", "below" and "underneath" of a first feature to a second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is horizontally lower than the second feature.

[0039] The disclosure below provides many different embodiments or examples for implementing different structures of the application. For the purpose of simplification, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the application. In addition, the application can repeatedly refer to reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, the application provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0040] Referring to FIGS. 1-3, the photovoltaic device 1000 of the embodiment of the application includes a plurality of photovoltaic devices 100 and adapters 200, the number of the photovoltaic devices 100 can be 2, 4, 5, 6, 8, etc. The plurality of photovoltaic devices 100 can be rotatably connected by the adapters 200, or in other words, the adapters 200 can connect two adjacent photovoltaic devices 100. The photovoltaic device 100 is generally plate-shaped, and has a long edge and a short edge substantially perpendicular to the long edge.

[0041] In one embodiment, one side of each photovoltaic device 100 is rotatably connected to one side of another photovoltaic device 100, and the other side of each photovoltaic device 100 is used to abut against a bearing surface. In other words, the plurality of photovoltaic devices 100 can be detachably connected in sequence, for example, the plurality of photovoltaic devices 100 are detachably connected in sequence along the width direction of the photovoltaic device 100, that is, the long edges of the plurality of photovoltaic devices 100 can be detachably connected by the adapters 200, thereby facilitating the assembly and disassembly of the photovoltaic device 1000, and facilitating the use of the photovoltaic device 1000.

[0042] Due to the rotation connection of the plurality of photovoltaic devices 1000, the photovoltaic device 1000 can be in a folded state and an unfolded state. When the photovoltaic device 1000 is in the folded state, the plurality of photovoltaic devices 100 are stacked, as shown in FIG. 3. When the photovoltaic device 1000 is in the unfolded state, a predetermined angle a is formed between two adjacent photovoltaic devices 100, as shown in FIG. 2. Exemplarily, when the photovoltaic device 1000 is in the unfolded state, the two adjacent photovoltaic devices 100 are kept at the predetermined angle by the adapter 200. In this way, the photovoltaic device 1000 is convenient to store and transport when it is folded. When the photovoltaic device 1000 is in the unfolded state, the angle between the two adjacent photovoltaic devices 100 is limited to the predetermined angle by the adapter 200, so that the state of the photovoltaic device 1000 is stable, the light-irradiated area of the photovoltaic device 100 is increased, and the photovoltaic device 1000 is conducive to converting solar energy into electrical energy.

[0043] In one example, the predetermined angle a is, for example, 90°-150°, for example, the predetermined angle a can be 90°, 110°, 120°, 125°, 130°, 140° or 150°, etc. In this way, the photovoltaic device 100 is unfolded to a larger area, which is conducive to the photovoltaic device 1000 converting solar energy into electrical energy.

[0044] It can be understood that in some other embodiments, the predetermined angle a is, for example, 120°-150°. The adjacent photovoltaic devices 100 are inclined relative to the bearing surface. On the premise of not reducing the power generation, on the one hand, the land occupation of the photovoltaic device 1000 can be saved; on the other hand, when there are leaves or other obstructions on the photovoltaic device 100, the leaves or other obstructions can slide off the surface of the photovoltaic device 100, avoiding the photovoltaic device 100 being partially blocked to reduce the power generation.

[0045] Please refer to FIGS. 7-9. In some embodiments, the photovoltaic device 100 can include a photovoltaic panel 10, a frame 20, a junction box 30, a first cylinder portion 40 and a second cylinder portion 50. The photovoltaic panel 10 is arranged on the frame 20, for example, the frame 20 wraps the edge of the photovoltaic panel 10, or in other words, the edge of the photovoltaic panel 10 is embedded in the frame 20.

[0046] The junction box 30 is arranged on the photovoltaic panel 10, and the junction box 30 is electrically connected with the photovoltaic panel 10. The number of the junction box 30 of each photovoltaic panel 10 can be two, and the junction box 30 can include a first junction box 31 and a second junction box 32, both of which are electrically connected with the photovoltaic panel 10. Two adjacent photovoltaic devices 100 are electrically connected through the first junction box 31 and the second junction box 32.

[0047] The first cylinder portion 40 protrudes from the surface of the photovoltaic panel 10. For example, the first cylinder portion 40 can be arranged on the frame 20, and the first cylinder portion 40 protrudes from the frame 20 towards the light-receiving surface of the photovoltaic device 100. The first cylinder portion 40 is used to form a receiving space 110 between two photovoltaic devices 100 when the two photovoltaic devices 100 are stacked, so that the junction box 30 is not easily interfered with other adjacent photovoltaic panels 10, and the stacking of multiple photovoltaic devices 100 to form a whole is facilitated.

[0048] The second cylinder portion 50 protrudes from the back surface of the photovoltaic panel 10. The second cylinder portion 50 is used to limit the position of the adjacent two photovoltaic devices 100, so that the photovoltaic panels 10 of the adjacent two photovoltaic devices 100 are spaced apart from each other, reducing the risk of mutual scratching of the two photovoltaic panels 10 and reducing the service life of the photovoltaic device 100.

[0049] Referring to FIGS. 7 and 8, in an embodiment, the photovoltaic panel 10 can include a substrate 11, a cell 12, and a light-transmitting cover plate 13. The cell 12 is arranged on the substrate 11, and the light-transmitting cover plate 13 covers the cell 12. Specifically, the substrate 11 can be made of PET, CPC, glass fiber plate, glass, or the like. The substrate 11 can be a sheet material such as a rectangle or a rounded rectangle. The cell 12 can be fixed to the substrate 11 by adhesion. The cell 12 is used to convert light energy into solar energy. The number of cells 12 can be multiple, and the multiple cells 12 are arranged in an array. For example, the row arrangement direction of the cell 12 is the same as the length direction of the substrate 11. The column arrangement direction of the cell 12 is the same as the width direction of the substrate 11.

[0050] The light-transmitting cover plate 13 can be made of PET, CPC, glass, or the like. The light-transmitting cover plate 13 can have the same shape and size as the substrate 11. The light-transmitting cover plate 13 can be adhesively bonded to the substrate 11 or the cell 12.

[0051] Referring to FIGS. 7-9, in some embodiments, the photovoltaic panel 10 further includes a positive electrode wire 14 and a negative electrode wire 15. The positive electrode wire 14 is arranged on the substrate 11 and electrically connected to the cell 12. The positive electrode wire 14 has a first positive electrode end 141 and a second positive electrode end 142. The negative electrode wire 15 is arranged on the substrate 11 and electrically connected to the cell 12. The negative electrode wire 15 has a first negative electrode end 151 and a second negative electrode end 152. The first positive electrode end 141 and the first negative electrode end 151 are arranged apart from each other and used to cooperate with each other to be electrically connected to the first junction box 31. The second positive electrode end 142 and the second negative electrode end 152 are arranged apart from each other and used to cooperate with each other to be electrically connected to the second junction box 32.

[0052] Therefore, the photovoltaic panel 10 is connected by the positive wire 14 and the negative wire 15, so that the first junction box 31 and the second junction box 32 can be arranged in parallel, which is conducive to the photovoltaic panel 10 to realize electrical connection with external equipment through at least one of the first junction box 31 and the second junction box 32, and facilitates the use of the photovoltaic panel 10. For example, two adjacent photovoltaic devices 100 are electrically connected through the first junction box 31 and the second junction box 32.

[0053] Specifically, the first junction box 31 is arranged on the photovoltaic panel 10 and electrically connected with the first positive terminal 141 and the first negative terminal 151, and the second junction box 32 is arranged on the photovoltaic panel 10 and electrically connected with the second positive terminal 142 and the second negative terminal 152. Further, the first junction box 31 and the second junction box 32 can be arranged on the light-transmitting cover plate 13. Since the positive wire 14 and the negative wire 15 are arranged on the substrate 11, the light-transmitting cover plate 13 can be provided with a via hole, so that the first positive terminal 141, the first negative terminal 151, the second positive terminal 142 and the second negative terminal 152 can pass through the substrate 11 to the surface of the light-transmitting cover plate 13, thereby being connected with the first junction box 31 and the second junction box 32.

[0054] Please refer to FIG. 9, in some embodiments, the positive wire 14 surrounds the plurality of cell pieces 12 and extends along the circumference of the substrate 11, and the negative wire 15 surrounds the plurality of cell pieces 12 and extends along the circumference of the substrate 11. In this way, the positive wire 14 and the negative wire 15 cooperate with the shape of the substrate 11, reducing the probability of interference between the positive wire 14 and the negative wire 15 and the cell pieces 12, respectively. For example, the substrate 11 is generally a square plate, so the positive wire 14 and the negative wire 15 can be in the shape of a broken line.

[0055] Please refer to FIG. 7-FIG. 9, in some embodiments, the first positive terminal 141 and the second positive terminal 142 are respectively located on both sides of the width of the substrate 11, and the first negative terminal 151 and the second negative terminal 152 are respectively located on both sides of the width of the substrate 11. Alternatively, the first positive terminal 141 and the second positive terminal 142 are arranged close to the two long edges of the substrate 11, and the first negative terminal 151 and the second negative terminal 152 are arranged close to the two short edges of the substrate 11. Therefore, the first junction box 31 and the second junction box 32 are arranged on both sides of the width direction of the photovoltaic panel 10, so that the photovoltaic device 100 is electrically connected with external equipment from the length edge side of the photovoltaic panel 10, and the space of the first junction box 31 and the second junction box 32 is larger, which is conducive to the first junction box 31 and the second junction box 32 to electrically connect two photovoltaic devices 100 together.

[0056] Please refer to FIG. 9, in some embodiments, the first positive terminal 141 and the second positive terminal 142 are staggered along the width direction of the substrate 11, and the first negative terminal 151 and the second negative terminal 152 are staggered along the width direction of the substrate 11. Alternatively, the first positive terminal 141 and the second positive terminal 142 are spaced apart along the length direction of the substrate 11, and the first negative terminal 151 and the second negative terminal 152 are spaced apart along the length direction of the substrate 11.

[0057] Thus, as shown in FIG. 4, in the two adjacent photovoltaic devices 100, the first junction box 31 of one of the photovoltaic devices 100 is electrically connected to the second junction box 32 of the other photovoltaic device 100 through the cable 33. The first junction box 31 and the second junction box 32 can be spaced apart along the length direction of the photovoltaic panel 10, so that the angle of the cable 33 between the first junction box 31 on one of the photovoltaic devices 100 and the second junction box 32 of the other photovoltaic device 100 is small, which is conducive to the electrical connection of the two adjacent photovoltaic devices 100 through the first junction box 31 and the second junction box 32.

[0058] Please refer to FIG. 9, in some embodiments, the photovoltaic panel 10 further comprises a positive current lead 16 and a negative current lead 17, the positive current lead 16 is electrically connected to the cell 12 and the positive wire 14, and the negative current lead 17 is electrically connected to the cell 12 and the negative wire 15. Thus, the positive current lead 16 can lead the current of the cell 12 to the positive wire 14, and the negative current lead 17 can lead the current of the cell 12 to the negative wire 15, so that the positive wire 14 and the negative wire 15 can lead the current out of the photovoltaic panel 10.

[0059] Please refer to FIG. 9, in some embodiments, the positive current lead 16 and the negative current lead 17 are respectively located on both sides of the width direction of the substrate 11. Thus, the arrangement of the positive current lead 16 and the negative current lead 17 has a larger range, reducing the probability of short circuit of the positive current lead 16 and the negative current lead 17. Specifically, the positive current lead 16 is located between the cell 12 and the positive wire 14, and the negative current lead 17 is located between the cell 12 and the negative wire 15.

[0060] Please refer to FIG. 9, in some embodiments, the positive current lead 16 comprises a plurality of positive current leads 161 arranged in the length direction of the substrate 11, and the negative current lead 17 comprises a plurality of negative current leads 171 arranged in the length direction of the substrate 11, the plurality of positive current leads 16 and the plurality of negative current leads 17 are connected in series through the cell 12, one of the positive current leads 16 is connected to the positive wire 14, and one of the negative current leads 17 is connected to the negative wire 15. Thus, the plurality of positive current leads 16 and the plurality of negative current leads 17 can connect the cells 12 in series, which is conducive to leading the current generated by the cells 12 out.

[0061] In some embodiments, the width of the positive electrode trace 14 is greater than the width of the positive electrode current lead 16, and the width of the negative electrode trace 15 is greater than the width of the negative electrode current lead 17. Since the positive electrode trace 14 and the negative electrode trace 15 have a large amount of current, the width of the positive electrode trace 14 is greater than the width of the positive electrode current lead 16, and the width of the negative electrode trace 15 is greater than the width of the negative electrode current lead 17, which is conducive to the photovoltaic panel 10 leading current to external devices.

[0062] Referring to FIGS. 12-13, in some embodiments, the frame 20 is used to abut against a bearing surface, so that the photovoltaic device 100 can abut against the bearing surface. The bearing surface is, for example, the ground, and the frame 20 can include a plurality of enclosing members 21 and a plurality of connecting members 22, which are connected end to end to form a ring shape, and the connecting members 22 are detachably connected with the adjacent two enclosing members 21.

[0063] In this way, the enclosing members 21 and the connecting members 22 of the frame 20 are detachably connected by means of insertion, so that the frame 20 is easy to assemble, and it is easier to wrap the edges of the photovoltaic panel 10, so that the photovoltaic panel 10 and the frame 20 are easy to assemble and disassemble.

[0064] Specifically, the enclosing members 21 and the connecting members 22 can be made of materials with high strength, such as aluminum alloy, so as to improve the impact resistance of the frame 20, which is conducive to protecting the photovoltaic panel 10.

[0065] In some embodiments, the enclosing members 21 are straight strips, and the connecting members 22 form the corner parts of the frame 20. Since it is difficult to manufacture the corner parts of the frame 20 using large-sized parts, the frame 20 is made into a straight strip shape, and the connecting members 22 form the corner parts of the frame 20, which can reduce the manufacturing difficulty of the frame 20.

[0066] Referring to FIGS. 12-13, in some embodiments, the enclosing members 21 include long members 211 and short members 212, the long members 211 form the long edges of the frame 20, the short members 212 form the short edges of the frame 20, and the connecting members 22 connect the adjacent long members 211 and short members 212. In this way, the connecting members 22 can be connected with the long members 211 and the short members 212 to form the frame 20. Specifically, the number of long members 211 and short members 212 is two, and the number of connecting members 22 is four, two long members 211 are arranged substantially in parallel, and two short members 212 are arranged substantially in parallel.

[0067] Referring to FIG. 14, in some embodiments, the enclosing members 21 are provided with markers 23, and optionally, one of the short members 212 is provided with a marker 23. In this way, the markers 23 can enable a plurality of photovoltaic devices 100 to be assembled in a predetermined orientation, which is conducive to improving the assembly efficiency of the plurality of photovoltaic devices 100.

[0068] In some embodiments, the marker 23 comprises a coating layer provided on the surface of the enclosing member 21, and the color of the coating layer is different from the color of the short member 212. In this way, the marker 23 can be distinguished from the enclosing member 21, and the orientation in which the photovoltaic device 100 needs to be assembled can be identified more quickly. For example, the color of the coating layer can be red, yellow, or the like, and the color of the enclosing member 21 can be gray, black, or the like. Of course, the marker 23 can also be a bump, a number, or the like.

[0069] Referring to FIG. 14, in some embodiments, the connecting member 22 comprises a connecting portion 221 and a plug-in portion 222 connected to the connecting portion 221, and the enclosing member 21 is provided with a plug-in hole 210, the plug-in portion 222 is inserted into the plug-in hole 210, and the connecting portion 221 is butted against the enclosing member 21. In this way, the plug-in hole 210 and the plug-in portion 222 cooperate to make the connecting member 22 and the enclosing member 21 easily plug together.

[0070] In some embodiments, the plug-in hole 210 extends along the length direction of the enclosing member 21. Alternatively, the plug-in hole 210 can extend through both ends of the enclosing member 21 along the length direction of the enclosing member 21. In this way, the plug-in hole 210 can reduce the weight of the enclosing member 21, thereby reducing the weight of the frame 20 and facilitating the transportation of the photovoltaic device 100.

[0071] Referring to FIG. 14, in some embodiments, the plug-in portion 222 is provided with a threaded hole 223, the enclosing member 21 is provided with a through hole 213, and the enclosing member 21 and the plug-in portion 222 are fixed by screwing a threaded fastener through the through hole 213 and the threaded hole 223. In this way, the enclosing member 21 and the connecting portion 221 are more stably connected, and the risk of the frame 20 coming loose is reduced.

[0072] Referring to FIG. 14, in some embodiments, the frame 20 is provided with a mounting groove 24 spaced apart from the plug-in hole 210, the mouth of the mounting groove 24 faces away from the plug-in hole 210, the mounting groove 24 extends along the frame 20 and penetrates the enclosing member 21 and the connecting portion 221, and the mounting groove 24 is used to mount the photovoltaic panel 10. In this way, the edge of the photovoltaic panel 10 can be embedded in the mounting groove 24, so that the frame 20 and the photovoltaic panel 10 are more stably connected.

[0073] In one example, during the assembly of the photovoltaic device 100, the enclosing member 21 and the connecting member 22 can be sequentially clamped on the edge of the photovoltaic panel 10 through the mounting groove 24, then a screw is used to lock the enclosing member 21 and the connecting member 22, so that the structure of the frame 20 is stable, and finally adhesive is injected into the mounting groove 24 to bond the frame 20 and the photovoltaic panel 10, thereby improving the stability of the photovoltaic device 100.

[0074] Referring to FIG. 2 and FIG. 14, in some embodiments, the frame 20 is provided with a mounting hole 25 penetrating the frame 20 along the thickness direction of the photovoltaic panel 10, the mounting hole 25 being used for allowing the pin 300 to pass through so as to be inserted under the bearing surface. In this way, the mounting hole 25 can make the photovoltaic device 100 stable in installation, so that the position of the photovoltaic device 100 remains stable, which is conducive to improving the power generation efficiency of the photovoltaic device 100. Specifically, after the photovoltaic device 1000 is unfolded, the pin 300 can pass through the mounting hole 25 and be inserted under the bearing surface, so that the position of the photovoltaic device 1000 remains stable.

[0075] In some embodiments, the mounting hole 25 is arranged at the corner portion of the frame 20. In this way, the mounting hole 25 is located at the edge portion of the frame 20, which can improve the wind resistance of the photovoltaic device 100, thereby improving the stability after installation.

[0076] Referring to FIG. 12, in some embodiments, each corner portion of the frame 20 is provided with a mounting hole 25. In this way, the frame 20 has good structural consistency, which is conducive to the production and manufacture of the frame 20. Specifically, the mounting hole 25 penetrates the connecting piece 22, or in other words, the connecting piece 22 is provided with a mounting hole 25 penetrating the connecting piece 22 along the thickness direction of the photovoltaic panel 10. Exemplarily, the mounting hole 25 penetrates the connecting portion 221. After the installation of the photovoltaic device 100, the first photovoltaic device 100 and the last photovoltaic device 100 pass through the mounting hole 25 by the pin 300 so as to be inserted under the bearing surface. It should be noted that among the first photovoltaic device 100 and the last photovoltaic device 100, the mounting hole 25 away from the bearing surface is not inserted with the pin 300.

[0077] As mentioned above, on the same photovoltaic device 100, the junction box 30 can include a first junction box 31 and a second junction box 32. Referring again to FIG. 6 and FIG. 7, in one embodiment, the first junction box 31 is connected with a cable 33, the second junction box 32 is provided with a plug-in interface 321, and the connector at one end of the cable 33 is adapted to be inserted into the plug-in interface 321. Or in other words, one end of the cable 33 is fixed on the first junction box 31, and the second junction box 32 is provided with a plug-in interface 321, and the connector at the other end of the cable 33 in one of the two adjacent photovoltaic devices 100 is inserted into the plug-in interface 321 of the second junction box 32 of the other photovoltaic device 100, and for this purpose, the first junction box 31 of one of the two adjacent photovoltaic devices 100 is electrically connected with the second junction box 32 of the other photovoltaic device 100 through the cable 33, which is conducive to realizing the electrical connection of the two photovoltaic devices 100.

[0078] Specifically, referring to FIGS. 10-11, in one embodiment, the second junction box 32 includes a box body 321, a box cover 322, and a terminal seat 323. The box body 321 has an accommodation space 3211 inside, an insertion interface 3212 at an end of the box body 321, and an opening 3213 at a top of the box body 321. The opening 3213 is spaced apart from the insertion interface 3212 and communicates with the accommodation space 3211. The box cover 322 covers the opening 3213. The terminal seat 323 is arranged in the accommodation space 3211 and partially located between the opening 3213 and the insertion interface 3212. In adjacent two photovoltaic devices 100, the terminal of the other end of the cable on one of the photovoltaic devices 100 is inserted into the insertion interface 3212 of the second junction box 32 of the other photovoltaic device 100 and is inserted with the terminal seat 323.

[0079] In this way, the box body 321 has the opening 3213 at the top, which is spaced apart from the insertion interface 3212 and communicates with the accommodation space 3211. The terminal seat 323 is arranged in the accommodation space 3211 and partially located between the opening 3213 and the insertion interface 3212. In this way, the terminal seat 323 is easily installed in the accommodation space 3211, and the surface of the accommodation space 3211 close to the peripheral surface of the insertion interface 3212 is a closed loop surface, which is beneficial to improve the waterproof performance of the terminal seat 323 and the terminal of the cable.

[0080] Referring to FIGS. 10-11, in some embodiments, the inner wall of the accommodation space 3211 is provided with a limiting rib 3214, and the terminal seat 323 is provided with a limiting groove 3231. The limiting rib 3214 is clamped in the limiting groove 3231 to limit the normal movement of the terminal seat 323 along the insertion interface 3212. In this way, the terminal of the cable 33 and the terminal seat 323 can be inserted together, which improves the stability of the connection between the terminal of the cable 33 and the terminal seat 323. The normal direction of the insertion interface 3212 is the insertion direction of the terminal of the cable.

[0081] In some embodiments, when the plurality of photovoltaic devices 100 are disassembled, the terminal of the cable 33 can be inserted with an external device. That is, when a single photovoltaic device 100 is used alone, the photovoltaic device 100 can output electric energy through the cable 33, thereby facilitating the use of the single photovoltaic device 100.

[0082] Referring to FIGS. 6 and 7, in some embodiments, the first cylinder portion 40 is arranged at one side of the light-transmitting cover plate 13. Since the junction box 30 is arranged on the light-transmitting cover plate 13, the first cylinder portion 40 is arranged at one side of the light-transmitting cover plate 13. In this way, when two photovoltaic devices 100 are stacked, the first cylinder portion 40 forms an accommodation space 110 between the two photovoltaic devices 100 to accommodate the junction box 30, such as the first junction box 31 and the second junction box 32. The first cylinder portions 40 of the adjacent two photovoltaic devices 100 abut each other.

[0083] Specifically, the first cylinder portion 40 can be arranged on the frame 20, so that the first cylinder portion 40 can be more easily installed. Further, the first cylinder portion 40 is arranged at the corner portion of the frame 20. As mentioned above, the connecting piece 22 is formed at the corner portion of the frame 20, thus the first cylinder portion 40 can be arranged on the connecting piece 22. For example, the first cylinder portion 40 can be integrally formed with the connecting piece 22.

[0084] In some embodiments, the number of the first cylinder portion 40 is multiple, and the multiple first cylinder portions 40 are arranged along the circumference of the photovoltaic panel 10. In this way, the multiple first cylinder portions 40 can provide multiple-point support for the adjacent two photovoltaic devices 100, which is conducive to keeping the form of the accommodating space 110 formed between the adjacent two photovoltaic devices 100 stable, thereby reducing the interference with the first junction box 31 and the second junction box 32.

[0085] Specifically, in some embodiments, the first cylinder portion 40 extends from one side of the connecting portion 221, and the first cylinder portion 40 communicates with the mounting hole 25.

[0086] Referring to FIGS. 6 and 7, in some embodiments, the first cylinder portion 40 is a magnetic member, so that the adjacent two photovoltaic devices 100 can be attracted together by the first cylinder portion 40, which is conducive to keeping the position of the photovoltaic device 100 stable.

[0087] Referring to FIGS. 6-8, in some embodiments, the second cylinder portion 50 is arranged on one side of the substrate 11, and the second cylinder portion 50 is aligned with the first cylinder portion 40 along the thickness direction of the photovoltaic panel 10. For example, the first cylinder portion 40 and the second cylinder portion 50 are arranged on the two sides of the frame 20 along the thickness direction of the photovoltaic panel 10, respectively, and the second cylinder portion 50 can provide support for the adjacent two photovoltaic devices 100, so that the adjacent two photovoltaic devices 100 are more stable after the photovoltaic device 1000 is in the folded state.

[0088] As shown in FIG. 14, in some embodiments, the second cylinder portion 50 is arranged on the frame 20, more specifically, the second cylinder portion 50 can be arranged on the connecting piece 22. The second cylinder portion 50 can also be a magnetic member, so that the adjacent two photovoltaic devices 100 can be attracted together by the second cylinder portion 50, which is conducive to keeping the position of the photovoltaic device 100 stable.

[0089] Specifically, in some embodiments, the second cylinder portion 50 extends from the other side of the connecting portion 221, and the second cylinder portion 50 communicates with the mounting hole 25.

[0090] As shown in FIG. 14, in some embodiments, the mounting hole 25 penetrates the first cylinder portion 40 and the second cylinder portion 50. In this way, the first cylinder portion 40, the second cylinder portion 50 and the mounting hole 25 are more compactly matched.

[0091] Please refer to FIG. 15, in some embodiments, the adapter 200 connects the frames 20 of two adjacent photovoltaic devices 100, so that the two adjacent photovoltaic devices 100 are rotatably connected. In this way, the frame 20 can provide a mounting position for the adapter 200, so that the two adjacent photovoltaic devices 100 can be rotatably connected by the adapter 200.

[0092] In one example, as discussed above, the long members 211 form the long edges of the frame 20, the short members 212 form the short edges of the frame 20, and the connectors 22 connect adjacent long members 211 and short members 212, so that the frame 20 includes two long edges and two short edges, the two long edges are oppositely arranged, the two short edges are located between the two long edges, the adapter 200 can be connected to the long edges of the frame 20, or in other words, the adapter 200 can be connected to the long members 211 of the frame 20, so that the center of gravity of the photovoltaic device 1000 in the folded state is lower, and the transportation is more convenient.

[0093] Please refer to FIG. 15, for the convenience of description, the two adjacent photovoltaic devices 100 are respectively a first photovoltaic device 101 and a second photovoltaic device 102, in some embodiments, the adapter 200 includes a first rotating member 201, a second rotating member 202 and a rotating shaft 203, the first rotating member 201 and the second rotating member 202 are rotatably connected by the rotating shaft 203, the first rotating member 201 is fixed on the first photovoltaic device 101, and the second rotating member 202 is fixed on the second photovoltaic device 102. Specifically, the first rotating member 201 is fixed on the frame 20 of the first photovoltaic device 101, and the second rotating member 202 is fixed on the frame 20 of the second photovoltaic device 102.

[0094] In other words, the first rotating member 201 is fixed on the frame 20 of one of the two adjacent photovoltaic devices 100, and the second rotating member 202 is fixed on the frame 20 of the other photovoltaic device 100. In this way, the first rotating member 201 and the second rotating member 202 can rotatably connect the first photovoltaic device 101 and the second photovoltaic device 102.

[0095] In some embodiments, when the photovoltaic device 1000 is in the unfolded state, the first rotating member 201 abuts against one side of the second photovoltaic device 102, and the second rotating member 202 abuts against one side of the first photovoltaic device 101, so as to form a predetermined angle between the two adjacent photovoltaic devices 100. In this way, the photovoltaic device 1000 is easy to fold and transport when it is in the folded state, and the angle between the two adjacent photovoltaic devices 100 is limited to a predetermined angle by the adapter 200 when the photovoltaic device 1000 is in the unfolded state, so that the state of the photovoltaic device 1000 is stable, the light-irradiated area of the photovoltaic device 100 is increased, and the photovoltaic device 1000 is conducive to converting solar energy into electrical energy.

[0096] In some embodiments, when the photovoltaic device 1000 is in the unfolded state, the frame 20 of the first photovoltaic device 101 abuts against the frame 20 of the second photovoltaic device 102, so as to form a predetermined angle a between the first photovoltaic device 101 and the second photovoltaic device 102.

[0097] In this way, the first photovoltaic device 101 and the second photovoltaic device 102 can be limited by their own frames 20 to form a predetermined angle a, so that the structure of the adapter 200 is simple, and the unfolded state of the first photovoltaic device 101 and the second photovoltaic device 102 is stable, which is conducive to the photovoltaic device 1000 converting solar energy into electrical energy.

[0098] In some embodiments, in order to facilitate the use of the photovoltaic device 1000, the first rotating member 201 and the second rotating member 202 are rotatably and detachably connected, so that the photovoltaic device 100 can be detached and used or transported alone.

[0099] Please refer to FIGS. 15-18, in some embodiments, the first rotating member 201 is provided with a first adapter hole 2011, the second rotating member 202 is provided with a second adapter hole 2021 coaxially arranged with the first adapter hole 2011, and the rotating shaft 203 is movably inserted into the first adapter hole 2011 and the second adapter hole 2021. In this way, the first adapter hole 2011 and the second adapter hole 2021 facilitate the installation of the rotating shaft 203, so that the first rotating member 201 and the second rotating member 202 are rotatably connected.

[0100] Please refer to FIG. 15-FIG. 18, in some embodiments, the first rotating member 201 is provided with a first clamping slot 2012, the first adapter hole 2011 is communicated with the first clamping slot 2012, the number of the first adapter hole 2011 is two, the two first adapter holes 2011 are respectively located on the two sides of the first clamping slot 2012, the number of the rotating shaft 203 is two, the two rotating shafts 203 are spaced apart and arranged in the second adapter hole 2021, the second adapter member is partially accommodated in the first clamping slot 2012, the rotating shaft 203 extends from the second adapter hole 2021 and is inserted into the corresponding first adapter hole 2011. In this way, the second adapter member is partially accommodated in the first clamping slot 2012, the rotating shaft 203 extends from the second adapter hole 2021 and is inserted into the corresponding first adapter hole 2011, which makes the structure of the adapter 200 more compact, and makes the first rotating member 201 and the second rotating member 202 rotate more smoothly.

[0101] Please refer to FIG. 15-FIG. 18, in some embodiments, the adapter 200 includes a handle 204 connected with the rotating shaft 203, the second rotating member 202 is provided with a first avoiding slot 2028 for the handle 204 to move, the first avoiding slot 2028 is communicated with the second adapter hole 2021 and extends along the axial direction of the second adapter hole 2021. In this way, the handle 204 facilitates the operation of the adapter 200 to make the rotating shaft 203 move, so that the first rotating member 201 and the second rotating member 202 can be disassembled and assembled together, which is beneficial to the use of the photovoltaic device 100. Specifically, the handle 204 can be cylindrical, one end of the handle 204 can be inserted into the rotating shaft 203, so that the handle 204 is stably connected with the rotating shaft 203. The axial direction of the handle 204 is arranged substantially perpendicular to the axial direction of the rotating shaft 203, so that the handle 204 can more easily drive the rotating shaft 203 to move.

[0102] Please refer to FIG. 15-FIG. 18, in some embodiments, the adapter 200 further includes an elastic member 205 arranged in the second adapter hole 2021, the elastic member 205 connects the two rotating shafts 203, when an external force is applied to the handle 204, the two rotating shafts 203 are close to each other and are retracted into the second adapter hole 2021 and the elastic member 205 is compressed, after the external force is unloaded, the elastic member 205 applies an elastic force to the two rotating shafts 203 to make the rotating shafts 203 extend out of the second adapter hole 2021. In this way, the elastic member 205 makes the assembly of the first rotating member 201 and the second rotating member 202 more convenient, and can make the rotating shafts 203 remain in the state of being simultaneously inserted into the first adapter hole 2011 and the second adapter hole 2021, which is beneficial to the more stable and smooth rotation of the first rotating member 201 and the second rotating member 202.

[0103] Specifically, the elastic member 205 is, for example, a helical spring or the like. It can be understood that, due to the connection between the rotating shaft 203 and the handle 204, the rotating shaft 203 is at least partially retained in the second adapter hole 2021 under the limiting action of the handle 204 and the slot wall of the first avoiding slot 2028.

[0104] In one example, when the two photovoltaic devices 100 are assembled, the two handles 204 can be pinched by hand, i.e., the two handles 204 are brought close to each other, so that the two rotating shafts 203 are retracted into the second adapter hole 2021. After the first rotating hole 2011 and the second adapter hole 2021 are aligned, the hand is released, and under the action of the elastic member 205, the rotating shaft 203 extends from the second adapter hole 2021 into the first adapter hole 2011, so that the two photovoltaic devices 100 are assembled together.

[0105] Please refer to FIGS. 15-18. In some embodiments, when the photovoltaic device 1000 is in the unfolded state, the first rotating member 201 abuts against the frame 20 of the second photovoltaic device 102, and the second rotating member 202 abuts against the frame 20 of the first photovoltaic device 101, so as to form a predetermined angle a between the first photovoltaic device 101 and the second photovoltaic device 102. In this way, the first rotating member 201 and the second rotating member 202 can limit the angle between the first photovoltaic device 101 and the second photovoltaic device 102, which is conducive to the stable state of the first photovoltaic device 101 and the second photovoltaic device 102.

[0106] Please refer to FIGS. 15-18. In some embodiments, the first rotating member 201 includes a first adapter portion 2013, a first mounting portion 2014, and a first abutting portion 2015, the first mounting portion 2014 and the first abutting portion 2015 are both connected to the first adapter portion 2013, the first mounting portion 2014 is fixedly connected to the frame 20 of the first photovoltaic device 101, the first adapter portion 2013 is provided with the first adapter hole 2011, and the first abutting portion 2015 abuts against the frame 20 of the second photovoltaic device 102 when the first photovoltaic device 101 and the second photovoltaic device 102 are unfolded.

[0107] The second rotating member 202 comprises a second adapter portion 2023, a second mounting portion 2024 and a second abutting portion 2025, the second mounting portion 2024 and the second abutting portion 2025 are connected to the second adapter portion 2023, the second mounting portion 2024 is fixedly connected to the frame 20 of the second photovoltaic device 102, the second adapter portion 2023 is provided with a second adapter hole 2021, and the second abutting portion 2025 abuts against the frame 20 of the first photovoltaic device 101 when the first photovoltaic device 101 and the second photovoltaic device 102 are unfolded. In this way, the first abutting portion 2015 and the second abutting portion 2025 can limit the angle between the first photovoltaic device 101 and the second photovoltaic device 102, and the first mounting portion 2014 and the second mounting portion 2024 can stably connect the first rotating member 201 and the second rotating member 202 to the corresponding frame 20.

[0108] Specifically, the first mounting portion 2014 and the second mounting portion 2024 can be in a sheet shape, and the first mounting portion 2014 and the second mounting portion 2024 can be fixedly connected to the corresponding frame 20 by screws or other fasteners.

[0109] In other embodiments, the adapter 200 can also have the structure shown in FIGS. 19-22.

[0110] Referring to FIGS. 19-22, in some embodiments, the first rotating member 201 is provided with a first adapter hole 2011, the second rotating member 202 is provided with a rotating shaft 203, and the rotating shaft 203 is movably inserted into the first adapter hole 2011 and the second adapter hole 2021. In this way, the first adapter hole 2011 and the second adapter hole 2021 facilitate the installation of the rotating shaft 203, thereby enabling the first rotating member 201 to be rotationally connected to the second rotating member 202.

[0111] Referring to FIGS. 19-22, in some embodiments, the second rotating member 202 is provided with a second clamping groove 2022 and two accommodating grooves 2026 respectively arranged on both sides of the second clamping groove 2022 and in communication with the second clamping groove 2022, the accommodating grooves 2026 are coaxially arranged with the first adapter hole 2011 and the second adapter hole 2021, the number of rotating shafts 203 is two, and the two rotating shafts are movably arranged in the two accommodating grooves 2026, respectively. The rotating shafts 203 extend out of the accommodating grooves 2026 and are inserted into the corresponding first adapter hole 2011. In this way, the first rotating member 201 is partially accommodated in the second clamping groove 2022, the rotating shafts 203 extend out of the second adapter hole 2021 and are inserted into the corresponding first adapter hole 2011, which makes the structure of the adapter 200 more compact and enables the first rotating member 201 to rotate more smoothly with the second rotating member 202.

[0112] Please refer to FIG. 19-22, in some embodiments, the adapter 200 comprises a handle 204 connected with the rotating shaft 203, the second rotating member 202 is provided with a second avoiding slot 2027 for the handle 204 to move, the second avoiding slot 2027 is communicated with the second adapter hole 2021 and extends axially along the first adapter hole 2011. In this way, the handle 204 facilitates the operation of the adapter 200, so that the rotating shaft 203 moves, and then the first rotating member 201 and the second rotating member 202 can be disassembled and assembled together, which is beneficial for the use of the photovoltaic device 100. Specifically, the handle 204 can be cylindrical, one end of the handle 204 can be inserted into the rotating shaft 203, so that the handle 204 is stably connected with the rotating shaft 203. The axial direction of the handle 204 is substantially perpendicular to the axial direction of the rotating shaft 203, so that the handle 204 can more easily drive the rotating shaft 203 to move.

[0113] Please refer to FIG. 19-22, in some embodiments, the adapter 200 further comprises an elastic member 205 arranged in each accommodating slot 2026, the elastic member 205 is arranged between the rotating shaft 203 and the accommodating slot 2026, when opposite external forces are applied to the two handles 204, the rotating shafts 203 move away from each other and shrink into the second avoiding slot 2027, and the elastic member 205 is compressed, after the external forces are unloaded, the elastic member 205 applies an elastic force to the two rotating shafts 203, so that the rotating shafts 203 move close to each other and extend out of the accommodating slot 2026. In this way, the elastic member 205 makes the assembly of the first rotating member 201 and the second rotating member 202 more convenient, and can make the rotating shafts 203 remain in the state of being inserted into the first adapter hole 2011 and the second adapter hole 2021 at the same time, which is beneficial for the first rotating member 201 and the second rotating member 202 to rotate more stably and smoothly.

[0114] Specifically, the elastic member 205 is, for example, a spiral elastic element or the like. It can be understood that, since the rotating shaft 203 is connected with the handle 204, the rotating shaft 203 is at least partially kept in the second adapter hole 2021 under the limiting action of the handle 204 and the slot wall of the second avoiding slot 2027.

[0115] Please refer to FIG. 19-22, in some embodiments, the first rotating member 201 comprises a first adapter portion 2013, a first mounting portion 2014 and a first abutting portion 2015, the first mounting portion 2014 and the first abutting portion 2015 are both connected with the first adapter portion 2013, the first mounting portion 2014 is fixedly connected with the frame 20 of the first photovoltaic device 101, the first adapter portion 2013 is provided with the first adapter hole 2011, and the first abutting portion 2015 abuts against the frame 20 of the second photovoltaic device 102 when the first photovoltaic device 101 and the second photovoltaic device 102 are unfolded;

[0116] The second rotating member 202 comprises a second adapter portion 2023, a second mounting portion 2024 and a second abutting portion 2025, the second mounting portion 2024 and the second abutting portion 2025 are connected to the second adapter portion 2023, the second mounting portion 2024 is fixedly connected to the frame 20 of the second photovoltaic device 102, the second adapter portion 2023 is provided with a second adapter hole 2021, and the second abutting portion 2025 abuts against the frame 20 of the first photovoltaic device 101 when the first photovoltaic device 101 and the second photovoltaic device 102 are unfolded. In this way, the first abutting portion 2015 and the second abutting portion 2025 can limit the angle between the first photovoltaic device 101 and the second photovoltaic device 102, and the first mounting portion 2014 and the second mounting portion 2024 can stably connect the first rotating member 201 and the second rotating member 202 to the corresponding frame 20.

[0117] Specifically, the first mounting portion 2014 and the second mounting portion 2024 can be in a sheet shape, and the first mounting portion 2014 and the second mounting portion 2024 can be fixedly connected to the corresponding frame 20 by screws or other fasteners.

[0118] In some embodiments, the first rotating member 201 and the second rotating member 202 connect the long edges of the corresponding frame 20. In this way, the center of gravity of the photovoltaic device 1000 is lower when it is in the folded state, and it is more convenient to transport. For example, the first mounting portion 2014 of the first rotating member 201 is fixedly connected to the long member 211 of the frame 20 of the first photovoltaic device 101, and the second mounting portion 2024 of the second rotating member 202 is fixedly connected to the long member 211 of the frame 20 of the second photovoltaic device 102.

[0119] In one embodiment, the photovoltaic device 100 comprises a photovoltaic panel 10, a junction box 30 and a first cylinder portion 40, the photovoltaic panel 10 comprises a substrate 11, a cell 12 and a light-transmitting cover plate 13, the cell 12 is arranged on the substrate 11, and the light-transmitting cover plate 13 covers the cell 12; the junction box 30 is arranged on the light-transmitting cover plate 13; the first cylinder portion 40 is arranged on one side of the light-transmitting cover plate 13, and the first cylinder portion 40 is used to form an accommodation space for accommodating the junction box 30 between two photovoltaic devices 100 when the two photovoltaic devices 100 are stacked.

[0120] In this way, the junction box 30 is arranged on the light-transmitting cover plate 13, so that the photovoltaic device 100 is convenient to use during use, without the need to wire from the back of the photovoltaic device 100, and in addition, the first cylinder portion 40 forms an accommodation space for accommodating the junction box 30 between two photovoltaic devices 100, which can reduce the interference between the junction box 30 and other photovoltaic devices 100, and improve the service life of the photovoltaic device 100.

[0121] In summary, in one embodiment, the photovoltaic device 1000 comprises a plurality of photovoltaic apparatuses 100 and a plurality of adapters 200, each photovoltaic apparatus 100 is rotatably connected with another photovoltaic apparatus 100, the photovoltaic device 1000 can be in a folded state and an unfolded state, when the photovoltaic device 1000 is in the folded state, the plurality of photovoltaic apparatuses 100 are stacked, when the photovoltaic device 1000 is in the unfolded state, two adjacent photovoltaic apparatuses 100 are kept at a predetermined angle by the adapter 200. In this way, the photovoltaic device 1000 is convenient to store and transport when it is folded, when the photovoltaic device 1000 is in the unfolded state, the angle between two adjacent photovoltaic apparatuses 100 is limited to a predetermined angle by the adapter 200, so that the state of the photovoltaic device 1000 remains stable, the light exposure area of the photovoltaic apparatus 100 is increased, which is conducive to the conversion of solar energy into electrical energy by the photovoltaic device 1000.

[0122] Referring to FIG. 23, in some embodiments, the adapter 200 comprises a first rotating member 201, a second rotating member 202, and a first damping member 206, the first damping member 206 connects the first rotating member 201 and the second rotating member 202 and dampens the rotation between the first rotating member 201 and the second rotating member 202.

[0123] In some embodiments, when the photovoltaic device 1000 is in the unfolded state, two adjacent photovoltaic apparatuses 100 are kept at a predetermined angle by the first damping member 206.

[0124] In this way, the adapter 200 adjusts the rotation damping value between the first rotating member 201 and the second rotating member 202 through the first damping member 206, the damping value is small when the photovoltaic device 1000 needs to be unfolded or folded, and the damping value is large when the photovoltaic device 1000 needs to be kept at a predetermined angle, so as to realize the infinite adjustment of the folding angle of two adjacent photovoltaic apparatuses 100 in the photovoltaic device 1000, and make the rotation of the adapter 200 more stable, and improve the convenience of opening and closing of the photovoltaic device 1000. Moreover, by adjusting the rotation damping between the first rotating member 201 and the second rotating member 202 through the first damping member 206, the rotation of the photovoltaic apparatus 100 during the folding of the photovoltaic device 1000 can be prevented from being too fast to cause hand clamping.

[0125] Referring to FIGS. 23-26, in some embodiments, the first rotating member 201 is provided with a first adapter hole 2011, the second rotating member 202 is provided with a second adapter hole 2021 coaxially arranged with the first adapter hole 2011, the first damping member 206 is clamped between the first rotating member 201 and the second rotating member 202 and is provided with a through hole 2061 coaxial with the second adapter hole 2021, the adapter 200 further comprises a locking member 207, the locking member 207 passes through the through hole 2061 and is movably arranged in the first adapter hole 2011 and the second adapter hole 2021, the first damping member 206 is in pressure contact with the first rotating member 201 and the second rotating member 202 to damp the rotation between the first rotating member 201 and the second rotating member 202. In this way, the first adapter hole 2011 and the second adapter hole 2021 facilitate the installation of the locking member 207, so that the first rotating member 201 and the second rotating member 202 are rotationally connected.

[0126] Specifically, the first rotating member 201 and the second rotating member 202 are rotationally connected by the locking member 207. The first damping member 206 can be a circular ring-shaped sheet, and the center of the first damping member 206 is formed with a through hole 2061, which is opposite to the first adapter hole 2011 and the second adapter hole 2021 in the direction in which the locking member 207 is inserted into the first adapter hole 2011. The locking member 207 can drive the second rotating member 202 to rotate relative to the first rotating member 201. During the rotation of the second rotating member 202 relative to the first rotating member 201, the greater the pressure between the first damping member 206 and the first rotating member 201 and the second rotating member 202, the greater the rotation damping between the first rotating member 201 and the second rotating member 202. Similarly, the smaller the pressure between the first damping member 206 and the first rotating member 201 and the second rotating member 202, the smaller the rotation damping between the first rotating member 201 and the second rotating member 202.

[0127] When the rotation damping between the first rotating member 201 and the second rotating member 202 is large enough, it is difficult for the first rotating member 201 and the second rotating member 202 to rotate relative to each other, that is, the adjacent two photovoltaic devices 1000 connected by the first rotating member 201 and the second rotating member 202 are kept at a predetermined angle.

[0128] Optionally, the first damping member 206 is made of plastic.

[0129] Please refer to FIG. 23-26, in some embodiments, the locking member 207 comprises a first locking section 2071, a second locking section 2072 and an end portion 2073, the first locking section 2071 extends into the first adapter hole 2011 and is formed with threads, the second locking section 2072 extends into the second adapter hole 2021, and the end portion 2073 has a radial dimension greater than the second locking section 2072 and is exposed outside the second adapter hole 2021. In this way, the friction value between the first damping member 206 and the first rotating member 201 and the second rotating member 202 is controlled by adjusting the screwing amount of the first locking section 2071, so as to adjust the rotational damping between the first rotating member 201 and the second rotating member 202.

[0130] Specifically, the more the first locking section 2071 is screwed, the more compact the contact between the first rotating member 201, the first damping member 206 and the first rotating member 201, and the greater the friction value between the first damping member 206 and the first rotating member 201 and the second rotating member 202, so as to increase the rotational damping between the first rotating member 201 and the second rotating member 202, and the rotational force required for opening and closing the first photovoltaic device 101 and the second photovoltaic device 102 is also increased accordingly. Conversely, the first locking section 2071 is unscrewed from the first adapter hole 2011 by an appropriate amount, so that the friction value between the first damping member 206 and the first rotating member 201 and the second rotating member 202 is reduced, so as to reduce the rotational damping between the first rotating member 201 and the second rotating member 202, and the rotational force required for opening and closing the first photovoltaic device 101 and the second photovoltaic device 102 is also reduced accordingly.

[0131] When the photovoltaic device 1000 is in the unfolded or stored state, the screwing amount of the first locking section 2071 can be adjusted until the rotational damping between the first rotating member 201 and the second rotating member 202 is increased to a maximum value, so that the first rotating member 201 and the second rotating member 202 are difficult to rotate relative to each other, thereby maintaining the angle of the adjacent two photovoltaic devices 100 when the first locking section 2071 is screwed to the maximum value.

[0132] Please refer to FIG. 23-26, in some embodiments, the adapter 200 further comprises a second damping member 208, which is clamped between the second rotating member 202 and the end portion 2073 of the locking member 207. In this way, the rotational damping is formed between the end portion 2073 of the locking member 207 and the second rotating member 202 by the second damping member 208, which is beneficial to the locking member 207 cooperating with the first damping member 206 to adjust the friction value between the first rotating member 201 and the second rotating member 202.

[0133] Specifically, the second damping member 208 can be a circular ring structure, and the locking member 207 passes through the second damping member 208, the second adapter hole 2021 of the second rotating member 202 and the perforation 2061 of the first damping member 206 in sequence, and extends into the first adapter hole 2011 of the first rotating member 201. Adjusting the amount of rotation of the locking member 207 can control the friction value between the second damping member 208 and the end portion 2073 of the locking member 207 and the second rotating member 202, thereby adjusting the rotation force required for the relative rotation of the first rotating member 201 and the second rotating member 202.

[0134] Please refer to FIGS. 23-26, in some embodiments, the first adapter hole 2011 penetrates the first rotating member 201, the number of the second rotating member 202, the first damping member 206 and the locking member 207 is two, and the first rotating member 201 is respectively provided with a set of first damping members 206, second rotating members 202 and locking members 207 at both ends along the penetration direction of the first adapter hole 2011.

[0135] In this way, the two sets of first damping members 206, second rotating members 202 and locking members 207 are respectively arranged at both ends of the first rotating member 201 along the penetration direction of the first adapter hole 2011, which is conducive to the relative rotation of the first rotating member 201 and the second rotating member 202, and keeps the rotation stable when the adjacent two photovoltaic devices 100 are opened and closed.

[0136] Specifically, the two locking members 207 are respectively inserted into the two second rotating members 202 at both ends of the first rotating member 201, and respectively pass through the two first damping members 206 and are inserted into the first adapter hole 2011. The two second rotating members 202 at both ends of the first rotating member 201 are fixedly connected with the second photovoltaic device 102.

[0137] Alternatively, the end portion 2073 of the two locking members 207 at both ends of the first rotating member 201 is respectively clamped with a second damping member 208 between the two second rotating members 202.

[0138] In summary, when the photovoltaic device 1000 is in the unfolded state, the adjacent two photovoltaic devices 100 are kept at a predetermined angle through the first damping member 206. In this way, the adapter 200 adjusts the rotation damping value between the first rotating member 201 and the second rotating member 202 through the first damping member 206, and the damping value is smaller when the photovoltaic device 1000 needs to be unfolded or folded, and the damping value is larger when the photovoltaic device 1000 needs to be kept at a predetermined angle, so as to realize the infinite adjustment of the folding angle of the adjacent two photovoltaic devices 100 in the photovoltaic device 1000, and make the rotation of the adapter 200 more stable, and improve the convenience of opening and closing of the photovoltaic device 1000.

[0139] In the description of the embodiments of the present application, the terms "first", "second", etc. are used only to describe the purpose and cannot be understood as indicating or implying relative importance or implying the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0140] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0141] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A photovoltaic device, wherein, The photovoltaic device comprises a plurality of photovoltaic devices and a plurality of adapters, the photovoltaic device comprises a photovoltaic panel and a frame, the frame wraps the edge of the photovoltaic panel, the adapter connects the frames of two adjacent photovoltaic devices to make the two adjacent photovoltaic devices rotate and connect, the photovoltaic device can be in a folded state and an unfolded state, when the photovoltaic device is in the folded state, a plurality of photovoltaic devices are arranged in a stacked manner, when the photovoltaic device is in the unfolded state, the frame abuts the bearing surface, and the two adjacent photovoltaic devices are kept at a predetermined angle by the adapter.

2. The photovoltaic device of claim 1, wherein, The adapter comprises a first rotating part, a second rotating part rotatably connected with the first rotating part, and a first damping part connected with the first rotating part and the second rotating part and damping the rotation between the first rotating part and the second rotating part, the first rotating part is fixed on the frame of one of the two adjacent photovoltaic devices, the second rotating part is fixed on the frame of the other photovoltaic device, and the two adjacent photovoltaic devices are kept at a predetermined angle by the first damping part when the photovoltaic device is in the unfolded state.

3. The photovoltaic device of claim 2, wherein, The first rotating part is provided with a first adapter hole, the second rotating part is provided with a second adapter hole coaxially arranged with the first adapter hole, the first damping part is clamped between the first rotating part and the second rotating part and provided with a through hole coaxial with the second adapter hole, the adapter further comprises a locking part, the locking part passes through the through hole and is movably inserted into the first adapter hole and the second adapter hole, and the first damping part is in pressure contact with the first rotating part and the second rotating part to damp the rotation between the first rotating part and the second rotating part.

4. The photovoltaic device of claim 3, wherein, The locking part comprises a first locking segment, a second locking segment and an end portion, the first locking segment extends into the first adapter hole and is formed with threads, the second locking segment extends into the second adapter hole, and the radial dimension of the end portion is greater than that of the second locking segment and exposed outside the second adapter hole.

5. The photovoltaic device of claim 4, wherein, The adapter further comprises a second damping part clamped between the second rotating part and the end portion of the locking part.

6. The photovoltaic device of claim 3, wherein, The first adapter hole penetrates the first rotating part, the number of the second rotating part, the first damping part and the locking part is two, and the first rotating part is provided with a set of the first damping part, the second rotating part and the locking part at both ends along the penetration direction of the first adapter hole.

7. The photovoltaic device of claim 3, wherein, The two adjacent photovoltaic devices are a first photovoltaic device and a second photovoltaic device, the first rotating part comprises a first adapter part, a first mounting part and a first abutting part, the first mounting part and the first abutting part are connected with the first adapter part, the first mounting part is fixedly connected with the frame of the first photovoltaic device, the first adapter part is provided with the first adapter hole, and the first abutting part abuts the frame of the second photovoltaic device when the first photovoltaic device and the second photovoltaic device are unfolded. The second rotating member comprises a second adapter, a second mounting portion and a second abutting portion, the second mounting portion and the second abutting portion are connected to the second adapter, the second mounting portion is fixedly connected to the frame of the second photovoltaic device, and the second adapter is provided with the second adapter hole.

8. The photovoltaic device of claim 2, wherein, The first rotating member and the second rotating member are connected to the long edges of the frame.

9. The photovoltaic device of claim 1, wherein, The predetermined angle ranges from 90° to 150°.

10. The photovoltaic device of claim 1, wherein, The predetermined angle ranges from 120° to 150°.

11. The photovoltaic device of claim 1, wherein, The frame comprises two long edges and two short edges, the two long edges are oppositely arranged, the two short edges are located between the two long edges, and the adapter is connected to the long edges.

12. The photovoltaic device of claim 2, wherein, The first rotating member is provided with a first adapter hole, the second rotating member is provided with a second adapter hole coaxially arranged with the first adapter hole, and the adapter further comprises a rotating shaft movably inserted into the first adapter hole and the second adapter hole.

13. The photovoltaic device of claim 12, wherein, The first rotating member is provided with a first clamping groove, the first adapter hole is in communication with the first clamping groove, the number of the first adapter holes is two, the two first adapter holes are respectively located on the two sides of the first clamping groove, the number of the rotating shafts is two, the two rotating shafts are spaced apart and arranged in the second adapter hole, the second adapter is partially accommodated in the first clamping groove, and the rotating shafts are inserted into the corresponding first adapter holes from the second adapter hole.

14. The photovoltaic device of claim 13, wherein, The adapter further comprises a handle connected to the rotating shaft, the second rotating member is provided with a first avoiding groove for the handle to move, and the first avoiding groove is in communication with the second adapter hole and extends along the axial direction of the second adapter hole.

15. The photovoltaic device of claim 14, wherein, The adapter further comprises an elastic member arranged in the second adapter hole, the elastic member is connected to the two rotating shafts, when an external force is applied to the handle, the two rotating shafts are close to each other and are retracted into the second adapter hole, and the elastic member is compressed, after the external force is unloaded, the elastic member applies an elastic force to the two rotating shafts to make the rotating shafts extend out of the second adapter hole.

16. The photovoltaic device of claim 15, wherein, The second rotating member is provided with a second clamping groove and two accommodating grooves arranged on the two sides of the second clamping groove and in communication with the second clamping groove, the accommodating grooves are coaxially arranged with the first adapter holes, the number of the rotating shafts is two, and the two rotating shafts are movably arranged in the two accommodating grooves, respectively, the rotating shafts extend out of the accommodating grooves and are inserted into the first adapter holes.

17. The photovoltaic device of claim 16, wherein, The adapter further comprises a handle connected to the rotating shaft, and the second rotating member is provided with a second avoiding groove for the handle to move, the second avoiding groove is in communication with the accommodating groove and extends along the axial direction of the first adapter hole.

18. The photovoltaic device of claim 17, wherein, The adapter further comprises an elastic member arranged in each of the accommodating grooves, the elastic member being compressed between the rotating shafts and the accommodating grooves, when opposite external forces are applied to the two handles, the rotating shafts move away from each other and retract into the second avoiding grooves and the elastic member is compressed, after the external forces are unloaded, the elastic member applies elastic force to the two rotating shafts to make the rotating shafts move close to each other and extend out of the accommodating grooves.

19. The photovoltaic device of claims 1-18, wherein, The frame is provided with a mounting hole penetrating through the frame along the thickness direction of the photovoltaic panel, the mounting hole is used for allowing the bolt to pass through so that the bolt is inserted under the bearing surface.

20. The photovoltaic device of claim 1, wherein, The photovoltaic device comprises a first junction box and a second junction box, the first junction box and the second junction box are arranged on the photovoltaic panel, wherein, in two adjacent photovoltaic devices, the first junction box of one of the photovoltaic devices is electrically connected to the second junction box of the other photovoltaic device through a cable.

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