Photovoltaic apparatus

Abstract

A photovoltaic apparatus (1000). The photovoltaic apparatus (1000) comprises a plurality of photovoltaic devices (100) and a plurality of adapters (200); each photovoltaic device (100) is rotatably connected to another photovoltaic device (100); 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; and when the photovoltaic apparatus (1000) is in the unfolded state, every two adjacent photovoltaic devices (100) are kept at a predetermined angle by means of a corresponding adapter (200).

Description

Photovoltaic device

[0001] Priority information

[0002] The present application claims priority to and the benefit of patent application numbers 202411057227.X, 202411045860.7 filed with the China National Intellectual Property Office on July 31, 2024, and patent application number 202411265921.0 filed with the China National Intellectual Property Office on September 9, 2024, and incorporates by reference the entire contents of each. 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. To this end, the inventors realized that how to use photovoltaic panels more conveniently becomes a technical problem to be solved. SUMMARY

[0005] The present application provides a photovoltaic device.

[0006] A photovoltaic device includes a plurality of photovoltaic devices and a plurality of adapters, each of the photovoltaic devices is rotationally connected to another of the photovoltaic devices through the adapter, 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 stacked, when the photovoltaic device is in the unfolded state, two adjacent photovoltaic devices are kept at a predetermined angle through the adapter.

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

[0008] A photovoltaic device includes a plurality of photovoltaic devices and an adapter, each photovoltaic device includes a photovoltaic panel and a frame, the frame wraps the edge of the photovoltaic panel; the adapter connects two adjacent photovoltaic devices, the adapter includes a first rotating member and a second rotating member rotationally connected to the first rotating member, the first rotating member is fixed on the frame of one of the two adjacent photovoltaic devices, the second rotating member is fixed on the frame of the other photovoltaic device, the photovoltaic device can be in a folded state and an unfolded state, when the photovoltaic device is in the unfolded state, the two adjacent photovoltaic devices are kept at a predetermined angle through the adapter.

[0009] Thus, when the photovoltaic device is in the unfolded state, the angle between the two adjacent photovoltaic devices is defined by the adapter at a predetermined angle, so that the state of the photovoltaic device is kept stable, the light-irradiated area of the photovoltaic device is increased, and the photovoltaic device is facilitated to convert solar energy into electric energy.

[0010] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0011] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings, wherein:

[0012] Fig. 1 is a perspective view of a photovoltaic device in a folded state according to an embodiment of the present application;

[0013] Fig. 2 is a perspective view of the photovoltaic device in an unfolded state according to the embodiment of the present application;

[0014] Fig. 3 is a plan view of the photovoltaic device in the folded state according to the embodiment of the present application;

[0015] Fig. 4 is another perspective view of the photovoltaic device in the unfolded state according to the embodiment of the present application;

[0016] Fig. 5 is another perspective view of the photovoltaic device of Fig. 4;

[0017] Fig. 6 is a partially enlarged view of the photovoltaic device in the folded state according to the embodiment of the present application;

[0018] Fig. 7 is a perspective view of a photovoltaic device according to the embodiment of the present application;

[0019] Fig. 8 is another perspective view of the photovoltaic device according to the embodiment of the present application;

[0020] Fig. 9 is a plan view of the photovoltaic device according to the embodiment of the present application;

[0021] Fig. 10 is a perspective view of a first junction box of the photovoltaic device according to the embodiment of the present application;

[0022] Fig. 11 is an exploded view of the first junction box of the photovoltaic device according to the embodiment of the present application;

[0023] Fig. 12 is a perspective view of a frame of the photovoltaic device according to the embodiment of the present application;

[0024] Fig. 13 is an exploded view of the frame of the photovoltaic device according to the embodiment of the present application;

[0025] Fig. 14 is an enlarged schematic view of a frame portion of the photovoltaic device of the first embodiment of the present application;

[0026] Fig. 15 is an enlarged schematic view of a portion of the photovoltaic device of the first embodiment of the present application in an unfolded state;

[0027] Fig. 16 is a schematic view of the adapter of the first embodiment of the present application;

[0028] Fig. 17 is another schematic view of the adapter of the first embodiment of the present application;

[0029] Fig. 18 is an exploded view of the adapter of the first embodiment of the present application;

[0030] Fig. 19 is an enlarged schematic view of a portion of the photovoltaic device of the second embodiment of the present application in an unfolded state;

[0031] Fig. 20 is a schematic view of the adapter of the second embodiment of the present application;

[0032] Fig. 21 is another schematic view of the adapter of the second embodiment of the present application;

[0033] Fig. 22 is an exploded view of the adapter of the second embodiment of the present application.

[0034] At least some of the reference signs: 1000-photovoltaic device; 100-photovoltaic device; 110-accommodation space; 10-photovoltaic panel; 11-substrate; 12-cell; 13-light-transmissive 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 segment; 17-negative electrode lead wire; 171-negative electrode lead segment; 20-frame; 21-enclosing member; insertion hole 210; 211-long member; 212-short member; 213-through hole; 22-connection member; 221-connection portion; 222-insertion portion; 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 opening; 3213-opening; 3214-limiting rib; 322-box cover; 323-wiring seat; 3231-limiting groove; 33-cable; 40-first cylindrical portion; 50-second cylindrical portion; 200-adapter; 201-first rotating member; 2011-first adapter hole; 2012-clamping groove; 2013-first adapter portion; 2014-first mounting portion; 2015-first abutting portion; 202-second rotating member; 2021-second adapter hole; 2022-avoidance groove; 2023-second adapter portion; 2024-second mounting portion; 2025-second abutting portion; 203-rotation shaft; 204-handle; 205-elastic member. DETAILED DESCRIPTION

[0035] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and cannot be understood as limiting the present application.

[0036] In the present application, unless 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 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 the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. "Under", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0037] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. For the purpose of simplifying the present application, the components and settings of specific examples are described below. Of course, they are only examples and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present 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.

[0038] Embodiment one:

[0039] Please refer to FIG. 1-3, the photovoltaic device 1000 of the embodiment of the present application includes a plurality of photovoltaic devices 100 and an adapter 200, the number of photovoltaic devices 100 can be 2, 4, 5, 6 and 8, etc. The plurality of photovoltaic devices 100 can be connected by rotating the adapter 200, or in other words, the adapter 200 can connect two adjacent photovoltaic devices 100. The photovoltaic device 100 is generally plate-shaped, and the photovoltaic device 100 has a long edge and a short edge substantially perpendicular to the long edge.

[0040] 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 configured to abut against the bearing surface. Alternatively, a plurality of photovoltaic devices 100 can be detachably connected in sequence, for example, a plurality of photovoltaic devices 100 can be 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 adapter 200, thereby facilitating the assembly and disassembly of the photovoltaic device 1000 and facilitating the use of the photovoltaic device 1000.

[0041] Due to the rotatable 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, an angle α is formed between adjacent two photovoltaic devices 100, as shown in FIG. 2. For example, when the photovoltaic device 1000 is in the unfolded state, the adapter 200 is used to keep the angle between adjacent two photovoltaic devices 100 at a predetermined angle. In this way, the photovoltaic device 1000 is convenient to store and transport when it is in the folded state. When the photovoltaic device 1000 is in the unfolded state, the angle between adjacent two photovoltaic devices 100 is limited to a predetermined angle by the adapter 200, so that the state of the photovoltaic device 1000 is stable, the light exposure area of the photovoltaic device 100 is increased, and the photovoltaic device 1000 is conducive to converting solar energy into electrical energy.

[0042] In one example, the predetermined angle α is, for example, 120°-150°, for example, the predetermined angle α can be 120°, 125°, 130°, 140° or 150°, etc. In this way, the photovoltaic device 100 has a larger unfolded area, which is conducive to the photovoltaic device 1000 converting solar energy into electrical energy.

[0043] It can be understood that in some other embodiments, the predetermined angle α is, for example, 50°-170°, for example, the predetermined angle α can be 50°, 60° or 70°, etc. The adjacent photovoltaic devices 100 are arranged to be inclined relative to the bearing surface, which can save the floor area of the photovoltaic device 1000 on the premise of not reducing the power generation, on the one hand; 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.

[0044] 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 40 and a second cylinder 50, the photovoltaic panel 10 is arranged on the frame 20, for example, the frame 20 wraps the edges of the photovoltaic panel 10, or in other words, the edges of the photovoltaic panel 10 are embedded in the frame 20.

[0045] 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.

[0046] 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 an accommodation space 110 between two stacked photovoltaic devices 100 to accommodate the junction box 30, so that the junction box 30 is not easily interfered with other adjacent photovoltaic panels 10, and it is beneficial to stack multiple photovoltaic devices 100 to form a whole.

[0047] 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 two adjacent photovoltaic devices 100, so that the photovoltaic panels 10 of the two adjacent photovoltaic devices 100 are separated 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.

[0048] Please refer to FIG. 7 and FIG. 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 and the like. The substrate 11 can be a sheet material such as a rectangle or a rounded rectangle. The cell 12 can be fixed on the substrate 11 by pasting. The cell 12 is used to convert light energy into solar energy. The number of the cell 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.

[0049] The light-transmitting cover plate 13 can be made of PET, CPC, glass and 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 bonded with the substrate 11 or the cell 12 by bonding.

[0050] Referring to FIGS. 7-9, in some embodiments, the photovoltaic panel 10 further comprises a positive wire 14 and a negative wire 15, the positive wire 14 is disposed on the substrate 11 and electrically connected with the cell 12, the positive wire 14 has a first positive terminal 141 and a second positive terminal 142; the negative wire 15 is disposed on the substrate 11 and electrically connected with the cell 12, the negative wire 15 has a first negative terminal 151 and a second negative terminal 152, wherein the first positive terminal 141 and the first negative terminal 151 are spaced apart and used to be electrically connected with the first junction box 31, the second positive terminal 142 and the second negative terminal 152 are spaced apart and used to be electrically connected with the second junction box 32.

[0051] In this way, the photovoltaic panel 10 is connected with the first junction box 31 and the second junction box 32 through 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 electrical connection between the photovoltaic panel 10 and 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.

[0052] 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 through holes, 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.

[0053] Referring to FIG. 9, in some embodiments, the positive wire 14 surrounds the plurality of cells 12 and extends along the circumference of the substrate 11, and the negative wire 15 surrounds the plurality of cells 12 and extends along the circumference of the substrate 11. In this way, the positive wire 14 and the negative wire 15 are matched with the shape of the substrate 11, thereby reducing the probability of interference between the positive wire 14 and the negative wire 15 and the cells 12, respectively. For example, the substrate 11 is substantially a square plate, and therefore the positive wire 14 and the negative wire 15 can be in the shape of a zigzag line.

[0054] Please refer to FIG. 7-9, in some embodiments, the first positive terminal 141 and the second positive terminal 142 are respectively located at two sides of the width of the substrate 11, and the first negative terminal 151 and the second negative terminal 152 are respectively located at two sides of the width of the substrate 11. Alternatively, the first positive terminal 141 and the second positive terminal 142 are respectively arranged close to two long edges of the substrate 11, and the first negative terminal 151 and the second negative terminal 152 are respectively arranged close to two short edges of the substrate 11. For this purpose, the first junction box 31 and the second junction box 32 are respectively arranged at two 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 electrically connecting the two photovoltaic devices 100 together by the first junction box 31 and the second junction box 32.

[0055] 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 arranged apart along the length direction of the substrate 11, and the first negative terminal 151 and the second negative terminal 152 are arranged apart along the length direction of the substrate 11.

[0056] In this way, 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 with 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 arranged apart along the length direction of the photovoltaic panel 10, so that the angle of the cable 33 between the first junction box 31 of one of the photovoltaic devices 100 and the second junction box 32 of the other photovoltaic device 100 is smaller, which is conducive to electrically connecting the two adjacent photovoltaic devices 100 through the first junction box 31 and the second junction box 32.

[0057] Please refer to FIG. 9, in some embodiments, the photovoltaic panel 10 further comprises a positive drain wire 16 and a negative drain wire 17, the positive drain wire 16 is electrically connected with the cell 12 and the positive wire 14, and the negative drain wire 17 is electrically connected with the cell 12 and the negative wire 15. In this way, the positive drain wire 16 can lead the current of the cell 12 to the positive wire 14, and the negative drain wire 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.

[0058] Referring to FIG. 9, in some embodiments, the positive current lead 16 and the negative current lead 17 are respectively arranged at two sides of the substrate 11 in the width direction. In this way, the arrangement of the positive current lead 16 and the negative current lead 17 has a larger range, and the probability of short circuit of the positive current lead 16 and the negative current lead 17 is reduced. Specifically, the positive current lead 16 is arranged between the battery sheet 12 and the positive track 14, and the negative current lead 17 is arranged between the battery sheet 12 and the negative track 15.

[0059] Referring to FIG. 9, in some embodiments, the positive current lead 16 includes a plurality of positive current lead segments 161 arranged at intervals in the length direction of the substrate 11, and the negative current lead 17 includes a plurality of negative current lead segments 171 arranged at intervals in the length direction of the substrate 11. The plurality of positive current lead segments 161 and the plurality of negative current lead segments 171 are connected in series through the battery sheet 12, one of the plurality of positive current lead segments 161 is connected to the positive track 14, and one of the plurality of negative current lead segments 171 is connected to the negative track 15. In this way, the plurality of positive current lead segments 161 and the plurality of negative current lead segments 171 can connect the battery sheet 12 in series, and facilitate the current generated by the battery sheet 12 to be led out.

[0060] In some embodiments, the width of the positive track 14 is greater than the width of the positive current lead 16, and the width of the negative track 15 is greater than the width of the negative current lead 17. Since the positive track 14 and the negative track 15 have a large amount of current, the width of the positive track 14 is greater than the width of the positive current lead 16, and the width of the negative track 15 is greater than the width of the negative current lead 17, which facilitates the photovoltaic panel 10 to lead the current out to the external device.

[0061] 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. The enclosing members 21 and the connecting members 22 are connected end to end to form a ring shape, and the connecting members 22 are detachably inserted with the adjacent two enclosing members 21.

[0062] In this way, the enclosing members 21 and the connecting members 22 of the frame 20 are detachably connected by 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.

[0063] 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, and facilitate the protection of the photovoltaic panel 10.

[0064] In some embodiments, the enclosing member 21 is in a straight strip shape, and the connecting member 22 forms the corner of the frame 20. Since it is difficult to manufacture the corner of the frame 20 by using a large-sized part, the frame 20 is made in a straight strip shape, and the connecting member 22 forms the corner of the frame 20, so that the manufacturing difficulty of the frame 20 is reduced.

[0065] Referring to FIGS. 12-13, in some embodiments, the enclosing member 21 includes 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 member 22 connects adjacent long members 211 and short members 212. In this way, the connecting member 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 the number of short members 212 are both 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.

[0066] Referring to FIG. 14, in some embodiments, the enclosing member 21 is provided with an identifier 23, and optionally, one of the short members 212 is provided with the identifier 23. In this way, the identifier 23 can enable the 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.

[0067] In some embodiments, the identifier 23 includes 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 identifier 23 can be distinguished from the enclosing member 21, so that 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 identifier 23 can also be a bump, a number, or the like.

[0068] Referring to FIG. 14, in some embodiments, the connecting member 22 includes a connecting portion 221 and a plug-in portion 222 connected with the connecting portion 221, 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 facilitate the plug-in of the connecting member 22 and the enclosing member 21.

[0069] In some embodiments, the plug-in hole 210 extends along the length direction of the enclosing member 21. Optionally, 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, which is conducive to the transportation of the photovoltaic device 100.

[0070] Referring to FIG. 14, in some embodiments, the insertion portion 222 is provided with a threaded hole 223, and the enclosing member 21 is provided with a through hole 213, and the enclosing member 21 and the insertion 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 loosening is reduced.

[0071] Referring to FIG. 14, in some embodiments, the frame 20 is provided with a mounting groove 24 spaced from the insertion hole 210, and the opening of the mounting groove 24 faces away from the insertion hole 210, and 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 for mounting 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.

[0072] In one example, during the assembly of the photovoltaic device 100, the enclosing member 21 and the connecting member 22 can be clamped on the edge of the photovoltaic panel 10 through the mounting groove 24 in sequence, and then the enclosing member 21 and the connecting member 22 are locked by screws, so that the structure of the frame 20 is stable, and finally the adhesive is injected into the mounting groove 24, so that the adhesive bonds the frame 20 and the photovoltaic panel 10, and the stability of the photovoltaic device 100 is improved.

[0073] Referring to FIGS. 2 and 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, and the mounting hole 25 is used for allowing the bolt 300 to pass through so that the bolt 300 is inserted under the bearing surface. In this way, the mounting hole 25 can make the photovoltaic device 100 stable, so that the position of the photovoltaic device 100 remains stable, which is beneficial to improve the power generation efficiency of the photovoltaic device 100. Specifically, after the photovoltaic device 1000 is unfolded, the bolt 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.

[0074] 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, so that the wind resistance of the photovoltaic device 100 is improved, and the stability after installation is further improved.

[0075] Referring to Fig. 12, in some embodiments, each corner 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 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 the mounting hole 25 penetrating the connecting piece 22 in the thickness direction of the photovoltaic panel 10. For example, the mounting hole 25 penetrates the connecting portion 221. After the photovoltaic device 100 is installed, the first photovoltaic device 100 and the last photovoltaic device 100 are inserted through the mounting hole 25 so that the bolt 300 is 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 bolt 300.

[0076] 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 Figs. 6 and 7, in one embodiment, the first junction box 31 is connected with a cable 33, and 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. In other words, one end of the cable 33 is fixed to 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 the adjacent two 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 adjacent two 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 the electrical connection of the two photovoltaic devices 100.

[0077] 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 inside of the box body 321 is provided with a receiving space 3211, the end of the box body 321 is provided with a plug-in interface 3212 in communication with the receiving space 3211, the top of the box body 321 is provided with an opening 3213 spaced apart from the plug-in interface 3212 and in communication with the receiving space 3211, the box cover 322 covers the opening 3213, and the terminal seat 323 is arranged in the receiving space 3211 and partially located between the opening 3213 and the plug-in interface 3212. In the adjacent two photovoltaic devices 100, the connector at the other end of the cable on one of the photovoltaic devices 100 is inserted into the plug-in interface 3212 of the second junction box 32 of the other photovoltaic device 100 and is plugged with the terminal seat 323.

[0078] Thus, the top of the box body 321 is provided with an opening 3213 spaced apart from the plug interface 3212 and communicating with the receiving space 3211, and the terminal block 323 is arranged in the receiving space 3211 and partially located between the opening 3213 and the plug interface 3212, so that the terminal block 323 is easily installed into the receiving space 3211, and the receiving space 3211 close to the peripheral surface of the plug interface 3212 is a closed loop surface, which is beneficial to improve the waterproof performance of the joint of the terminal block 323 and the cable.

[0079] Please refer to FIGS. 10-11, in some embodiments, the inner wall of the receiving space 3211 is provided with a limiting rib 3214, and the terminal block 323 is provided with a limiting groove 3231, and the limiting rib 3214 is clamped in the limiting groove 3231 to limit the normal movement of the terminal block 323 along the plug interface 3212. Thus, the joint of the cable 33 can be prepared to be inserted together with the terminal block 323, and the stability of the connection between the joint of the cable 33 and the terminal block 323 is improved. The normal direction of the plug interface 3212 is the insertion direction of the joint of the cable.

[0080] In some embodiments, when the plurality of photovoltaic devices 100 are disassembled, the joint of the cable 33 can be inserted with an external device. That is to say, 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 a single photovoltaic device 100.

[0081] Please refer to FIGS. 6 and 7, in some embodiments, the first cylinder portion 40 is arranged on one side of the light-transmitting cover plate 13. Since the terminal 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, so that 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 terminal box 30 such as the first terminal box 31 and the second terminal box 32. The first cylinder portions 40 of the adjacent two photovoltaic devices 100 abut each other.

[0082] 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 forms the corner portion of the frame 20, and therefore, 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.

[0083] In some embodiments, the first cylinder portion 40 is provided in a plurality, and the plurality of first cylinder portions 40 are arranged along the circumference of the photovoltaic panel 10. In this way, the plurality of first cylinder portions 40 can provide multi-point support for the adjacent two photovoltaic devices 100, and help to keep the shape 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.

[0084] 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.

[0085] Referring to FIGS. 6 and 7, in some embodiments, the first cylinder portion 40 is a magnetic member, and in this way, the adjacent two photovoltaic devices 100 can be attracted together by the first cylinder portion 40, which helps to keep the position of the photovoltaic device 100 stable.

[0086] 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, 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 when the photovoltaic device 1000 is in the folded state.

[0087] As shown in FIG. 14, in some embodiments, the second cylinder portion 50 is arranged on the frame 20, and more specifically, the second cylinder portion 50 can be arranged on the connecting member 22. The second cylinder portion 50 can also be a magnetic member, and in this way, the adjacent two photovoltaic devices 100 can be attracted together by the second cylinder portion 50, which helps to keep the position of the photovoltaic device 100 stable.

[0088] 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. 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.

[0089] Referring to FIG. 15, in some embodiments, the adapter 200 connects the frames 20 of the adjacent two photovoltaic devices 100 to make the adjacent two photovoltaic devices 100 rotatably connected. In this way, the frame 20 can provide a mounting position for the adapter 200, so that the adjacent two photovoltaic devices 100 can be rotatably connected by the adapter 200.

[0090] 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 connecting members 22 connect the adjacent long members 211 and short members 212, thus the frame 20 includes two long edges and two short edges, the two long edges are oppositely arranged, and the two short edges are 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.

[0091] 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 through the rotating shaft 203. 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. 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.

[0092] 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.

[0093] In some embodiments, when the photovoltaic device 1000 is in the unfolded state, the first rotating member 201 abuts one side of the second photovoltaic device 102, and the second rotating member 202 abuts one side of the first photovoltaic device 101, so that a predetermined angle is formed between the two adjacent photovoltaic devices 100. In this way, the photovoltaic device 1000 is convenient 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 remains stable, the light-irradiated area of the photovoltaic device 100 increases, and the photovoltaic device 1000 is beneficial to convert solar energy into electrical energy.

[0094] In some embodiments, when the photovoltaic device 1000 is in the unfolded state, the frame 20 of the first photovoltaic device 101 abuts the frame 20 of the second photovoltaic device 102, so that a predetermined angle α is formed between the first photovoltaic device 101 and the second photovoltaic device 102.

[0095] In this way, the first photovoltaic device 101 and the second photovoltaic device 102 can be limited by the frame 20 to form a predetermined angle α, so that the structure of the adapter 200 is connected, 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 light energy.

[0096] In some embodiments, in order to facilitate the use of the photovoltaic device 1000, the first rotating part 201 and the second rotating part 202 are rotatably and detachably connected, so that the photovoltaic device 100 can be detached and used or transported alone.

[0097] Please refer to FIGS. 15-18, in some embodiments, the first rotating part 201 is provided with a first adapter hole 2011, the second rotating part 202 is provided with a second adapter hole 2021 coaxially arranged with the first adapter hole 2011, and the shaft 203 is movably arranged in 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 are conducive to the installation of the shaft 203, so that the first rotating part 201 and the second rotating part 202 are rotatably connected.

[0098] Please refer to FIGS. 15-18, in some embodiments, the first rotating part 201 is provided with a clamping groove 2012, the first adapter hole 2011 communicates with the clamping groove 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 clamping groove 2012, the number of the shaft 203 is two, the two shafts 203 are arranged in the second adapter hole 2021 in a spaced manner, the second adapter part is accommodated in the clamping groove 2012, and the 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 part is accommodated in the clamping groove 2012, and the shaft 203 extends from the second adapter hole 2021 and is inserted into the corresponding first adapter hole 2011, so that the structure of the adapter 200 is more compact, and the first rotating part 201 and the second rotating part 202 rotate more smoothly.

[0099] Referring to FIGS. 15-18, in some embodiments, the adapter 200 further comprises a handle 204 connected with the shaft 203, and the second rotating member 202 is provided with a clearance groove 2022 for the handle 204 to move, the clearance groove 2022 is in communication 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, so that the 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, and one end of the handle 204 can be inserted into the shaft 203, so that the handle 204 is stably connected with the shaft 203. The axial direction of the handle 204 is substantially perpendicular to the axial direction of the shaft 203, so that the handle 204 can more easily drive the shaft 203 to move.

[0100] Referring to FIGS. 15-18, in some embodiments, the adapter 200 further comprises an elastic member 205 arranged in the second adapter hole 2021, the elastic member 205 connects the two shafts 203, when an external force is applied to the handle 204, the two 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 shafts 203, so that the 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 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.

[0101] Specifically, the elastic member 205 is, for example, a spiral elastic element or the like. It can be understood that, since the shaft 203 is connected with the handle 204, the shaft 203 is at least partially retained in the second adapter hole 2021 under the limiting action of the handle 204 and the groove wall of the clearance groove 2022.

[0102] In one example, when two photovoltaic devices 100 are assembled, the two handles 204 can be pinched together by hand, i.e., the two handles 204 are close to each other, so that the two 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 hands are released, and under the action of the elastic member 205, the shafts 203 extend from the second adapter hole 2021 into the first adapter hole 2011, so that the two photovoltaic devices 100 are assembled together.

[0103] Please refer to FIG. 15-FIG. 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, and help to keep the state of the first photovoltaic device 101 and the second photovoltaic device 102 stable.

[0104] Please refer to FIG. 15-FIG. 18, in some embodiments, the first rotating member 201 includes a first adapter 2013, a first mounting portion 2014 and a first abutting portion 2015, the first mounting portion 2014 and the first abutting portion 2015 are connected to the first adapter 2013, the first mounting portion 2014 is fixedly connected to the frame 20 of the first photovoltaic device 101, and the first mounting portion 2014 is provided with a 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.

[0105] The second rotating member 202 includes a second adapter 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 2023, the second mounting portion 2024 is fixedly connected to the frame 20 of the second photovoltaic device 102, the second adapter 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.

[0106] Specifically, the first mounting portion 2014 and the second mounting portion 2024 can be in the form of a sheet, 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.

[0107] In some embodiments, the first rotating member 201 and the second rotating member 202 are connected to the long edges of the corresponding frame 20. In this way, the center of gravity of the photovoltaic device 1000 is lower when in the folded state, and transportation is more convenient. 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.

[0108] In one embodiment, the photovoltaic device 100 includes a photovoltaic panel 10, a junction box 30, and a first cylinder portion 40. The photovoltaic panel 10 includes a substrate 11, a cell 12 disposed on the substrate 11, and a light-transmitting cover plate 13 covering the cell 12. The junction box 30 is disposed on the light-transmitting cover plate 13. The first cylinder portion 40 is disposed on one side of the light-transmitting cover plate 13, and 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. In this way, the junction box 30 is disposed on the light-transmitting cover plate 13, making it convenient to use the photovoltaic device 100 during use without the need to wire from the back of the photovoltaic device 100. 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 of the junction box 30 with other photovoltaic devices 100 and improve the service life of the photovoltaic device 100.

[0109] In summary, in one embodiment, the photovoltaic device 1000 includes a plurality of photovoltaic devices 100 and a plurality of adapters 200. Each photovoltaic device 100 is rotatably connected to another photovoltaic device 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 devices 100 are stacked. When the photovoltaic device 1000 is in the unfolded state, two adjacent photovoltaic devices 100 are kept at a predetermined angle by the adapter 200. In this way, the photovoltaic device 1000 is easy to store and transport when folded. When the photovoltaic device 1000 is in the unfolded state, the angle between two adjacent photovoltaic devices 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 device 100 increases, and the photovoltaic device 1000 is beneficial for converting solar energy into electrical energy.

[0110] Embodiment two:

[0111] Please refer to FIG. 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, 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.

[0112] Please refer to FIG. 19-22, in some embodiments, the second rotating member 202 is provided with a clamping groove 2022 and two accommodating grooves 2026 respectively arranged on both sides of the clamping groove 2022 and communicated with the 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 the rotating shafts 203 is two, the two rotating shafts are movably arranged in the two accommodating grooves 2026, 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 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, so that the structure of the adapter 200 is more compact, and the rotation of the first rotating member 201 and the second rotating member 202 is more smooth.

[0113] Please refer to FIG. 19-22, in some embodiments, the adapter 200 includes a handle 204 connected with the rotating shaft 203, the second rotating member 202 is provided with an avoiding groove 2027 for the handle 204 to move, the avoiding groove 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 to move the rotating shaft 203, 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.

[0114] Please refer to FIG. 19-22, in some embodiments, the adapter 200 further comprises a spring 205 arranged in each accommodating groove 2026, the spring 205 is arranged between the rotating shaft 203 and the accommodating groove 2026, when opposite external forces are applied to the two handles 204, the rotating shafts 203 are away from each other and retract into the avoiding grooves 2027 and the spring 205 is compressed, after the external forces are unloaded, the spring 205 applies elastic force to the two rotating shafts 203 to make the rotating shafts 203 close to each other and extend out of the accommodating grooves 2026. In this way, the spring 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 to the more stable and smooth rotation of the first rotating member 201 and the second rotating member 202.

[0115] Specifically, the spring 205 is a component with elasticity, such as a spiral spring. 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 groove wall of the avoiding groove 2027. In an 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 close to each other, so that the two rotating shafts 203 retract 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 spring 205, the rotating shafts 203 extend into the first adapter hole 2011 from the second adapter hole 2021, so that the two photovoltaic devices 100 are assembled together. It should be pointed out that the other parts of the photovoltaic device 1000 not described in the embodiment two can refer to the corresponding parts of the photovoltaic device 1000 in the embodiment one, which will not be described here.

[0116] In the description of the embodiments of the present application, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "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 "multiple" is two or more, unless otherwise specifically limited. In the description of the present application, the description referring to the terms "one embodiment", "some embodiments", "illustrative 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 application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0117] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that changes, modifications, substitutions and variations can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. A photovoltaic device, wherein, The photovoltaic device includes multiple photovoltaic units and multiple adapters. Each photovoltaic unit is rotatably connected to another photovoltaic unit through the adapter. The photovoltaic device can be in a folded state and an unfolded state. When the photovoltaic device is in the folded state, the multiple photovoltaic units are stacked. When the photovoltaic device is in the unfolded state, two adjacent photovoltaic units are maintained at a predetermined angle through the adapter.

2. The photovoltaic equipment according to claim 1, wherein, The predetermined angle is in the range of 120°-150°.

3. The photovoltaic device according to claim 1 or 2, wherein, The predetermined angle ranges from 50° to 70°.

4. The photovoltaic device according to any one of claims 1-3, wherein, The photovoltaic device includes a photovoltaic panel and a frame, the frame wrapping around the edge of the photovoltaic panel, and the adapter connecting the frames of two adjacent photovoltaic devices to allow the two adjacent photovoltaic devices to be rotatably connected.

5. The photovoltaic equipment according to claim 4, wherein, The frame includes two long edges and two short edges, the two long edges are arranged opposite each other, the two short edges are located between the two long edges, and the adapter connects the long edges.

6. The photovoltaic device according to claim 4 or 5, wherein, The adapter includes a first rotating component, a second rotating component, and a rotating shaft. The first rotating component and the second rotating component are rotatably connected by the rotating shaft. Two adjacent photovoltaic devices are a first photovoltaic device and a second photovoltaic device, respectively. The first rotating component is fixed on the frame of the first photovoltaic device, and the second rotating component is fixed on the frame of the second photovoltaic device.

7. The photovoltaic equipment according to claim 6, wherein, When the photovoltaic device is in the unfolded state, the first rotating member abuts against the frame of the second photovoltaic device, and the second rotating member abuts against the frame of the first photovoltaic device, so that the predetermined angle is formed between the first photovoltaic device and the second photovoltaic device.

8. The photovoltaic device according to claim 6 or 7, wherein, When the photovoltaic device is in the unfolded state, the frame of the first photovoltaic device abuts against the frame of the second photovoltaic device to form the predetermined angle between the first photovoltaic device and the second photovoltaic device.

9. The photovoltaic device according to any one of claims 1-8, wherein, The photovoltaic device includes a first junction box and a second junction box, which are disposed on the photovoltaic panel. In two adjacent photovoltaic devices, the first junction box of one photovoltaic device is electrically connected to the second junction box of the other photovoltaic device via a cable.

10. The photovoltaic device according to claim 9, wherein, The photovoltaic panel includes a substrate, solar cells, and a light-transmitting cover. The solar cells are disposed on the substrate, and the light-transmitting cover covers the solar cells. The photovoltaic device includes a first cylindrical portion disposed on one side of the light-transmitting cover. When the photovoltaic device is in a folded state, the first cylindrical portions of two adjacent photovoltaic devices abut against each other to form a receiving space between the two photovoltaic devices to accommodate the first junction box and the second junction box.

11. The photovoltaic device according to claim 10, wherein, The photovoltaic device further includes a second cylindrical portion disposed on one side of the substrate, and the second cylindrical portion is aligned with the first cylindrical portion along the thickness direction of the photovoltaic panel.

12. The photovoltaic device according to any one of claims 1-11, wherein, Each of the photovoltaic devices includes a photovoltaic panel and a frame, the frame wrapping around the edge of the photovoltaic panel. The adapter includes a first rotating member and a second rotating member rotatably connected to the first rotating member. The first rotating member is fixed to the frame of one of the two adjacent photovoltaic devices, and the second rotating member is fixed to the frame of the other photovoltaic device. The photovoltaic device can be in a folded state and an unfolded state. When the photovoltaic device is in the unfolded state, the two adjacent photovoltaic devices are maintained at a predetermined angle by the adapter.

13. The photovoltaic device according to claim 12, wherein, The first rotating component is provided with a first adapter hole, and the second rotating component is provided with a second adapter hole coaxially arranged with the first adapter hole. The adapter also includes a rotating shaft, which is movably inserted into the first adapter hole and the second adapter hole.

14. The photovoltaic device according to claim 13, wherein, The first rotating component is provided with a slot, and the first adapter hole communicates with the slot. There are two first adapter holes, which are located on both sides of the slot. There are two rotating shafts, which are spaced apart in the second adapter hole. The second adapter part is accommodated in the slot, and the rotating shaft extends out from the second adapter hole and is inserted into a corresponding first adapter hole.

15. The photovoltaic device according to claim 14, wherein, The adapter also includes a handle connected to the rotating shaft. The second rotating component is provided with a clearance groove for the handle to move. The clearance groove communicates with the second adapter hole and extends along the axial direction of the second adapter hole.

16. The photovoltaic device according to claim 15, wherein, The adapter also includes an elastic element disposed in the second adapter hole. The elastic element connects the two rotating shafts. When an external force is applied to the handle, the two rotating shafts move closer to each other and retract into the second adapter hole, and the elastic element is compressed. After the external force is unloaded, the elastic element applies an elastic force to the two rotating shafts so that the rotating shafts extend out of the second adapter hole.

17. The photovoltaic device according to any one of claims 13-16, wherein, The two adjacent photovoltaic devices are a first photovoltaic device and a second photovoltaic device. The first rotating part includes a first adapter, a first mounting part and a first abutting part. The first mounting part and the first abutting part are both connected to the first adapter. The first mounting part is fixedly connected to the frame of the first photovoltaic device. The first mounting part is provided with the first adapter hole. The first abutting part abuts against the frame of the second photovoltaic device when the first photovoltaic device and the second photovoltaic device are unfolded. The second rotating component includes a second adapter, a second mounting portion, and a second abutment portion. Both the second mounting portion and the second abutment portion are connected to the second adapter. The second mounting portion is fixedly connected to the frame of the second photovoltaic device. The second adapter portion is provided with a second adapter hole. The second abutment portion abuts against the frame of the first photovoltaic device when the first photovoltaic device and the second photovoltaic device are unfolded.

18. The photovoltaic device according to any one of claims 12-17, wherein, The first rotating member and the second rotating member are connected to the long edge of the corresponding frame.

19. The photovoltaic device according to any one of claims 12-18, wherein, The photovoltaic device includes a first junction box and a second junction box, which are disposed on the photovoltaic panel. In two adjacent photovoltaic devices, the first junction box of one photovoltaic device is electrically connected to the second junction box of the other photovoltaic device via a cable.

20. The photovoltaic device according to claim 19, wherein, The photovoltaic panel includes a substrate, solar cells, and a light-transmitting cover. The solar cells are disposed on the substrate, and the light-transmitting cover covers the solar cells. The photovoltaic device includes a first cylindrical portion disposed on the frame. The first cylindrical portion is disposed on one side of the light-transmitting cover. When the photovoltaic device is in a folded state, the first cylindrical portions of two adjacent photovoltaic devices abut against each other to form a receiving space between the two photovoltaic devices to accommodate the first junction box and the second junction box.

21. The photovoltaic device according to claim 20, wherein, The photovoltaic device further includes a second cylindrical portion disposed on one side of the substrate, and the second cylindrical portion is aligned with the first cylindrical portion along the thickness direction of the photovoltaic panel.

22. A photovoltaic device, wherein, include: Multiple photovoltaic devices, each of the photovoltaic devices including a photovoltaic panel and a frame, the frame wrapping around the edge of the photovoltaic panel; An adapter is provided to connect two adjacent photovoltaic devices. The adapter includes a first rotating member and a second rotating member, which are detachably rotatably connected. The first rotating member is fixed to the frame of one of the two adjacent photovoltaic devices, and the second rotating member is fixed to the frame of the other photovoltaic device. The photovoltaic device can be in a folded state and an unfolded state. When the photovoltaic device is in the unfolded state, the two adjacent photovoltaic devices are maintained at a predetermined angle through the adapter.

23. The photovoltaic device according to claim 22, wherein, The first rotating component is provided with a first adapter hole, and the second rotating component is provided with a rotating shaft, which is movably inserted into the first adapter hole.

24. The photovoltaic device according to claim 23, wherein, The second rotating component is provided with a slot and two receiving slots respectively located on both sides of the slot and communicating with the slot. The receiving slots are coaxially arranged with the first adapter hole. There are two rotating shafts, which are movably arranged in the two receiving slots respectively. The rotating shafts extend out of the receiving slots and are inserted into the first adapter hole.

25. The photovoltaic device according to claim 24, wherein, The adapter also includes a handle connected to the rotating shaft. The second rotating member is provided with a clearance groove for the handle to move. The clearance groove communicates with the receiving groove and extends axially along the first adapter hole.

26. The photovoltaic device according to claim 25, wherein, The adapter also includes an elastic element disposed in each of the receiving slots. The elastic element is compressed between the rotating shaft and the receiving slot. When opposite external forces are applied to the two handles, the rotating shafts move away from each other and retract into the clearance slot, and the elastic element is compressed. After the external force is unloaded, the elastic element applies an elastic force to the two rotating shafts so that the rotating shafts move closer to each other and extend out of the receiving slot.

27. The photovoltaic device according to any one of claims 23-26, wherein, The two adjacent photovoltaic devices are a first photovoltaic device and a second photovoltaic device. The first rotating part includes a first adapter, a first mounting part and a first abutting part. The first mounting part and the first abutting part are both connected to the first adapter. The first mounting part is fixedly connected to the frame of the first photovoltaic device. The first mounting part is provided with the adapter hole. The first abutting part abuts against the frame of the second photovoltaic device when the first photovoltaic device and the second photovoltaic device are unfolded. The second rotating component includes a second adapter, a second mounting portion, and a second abutting portion. Both 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. The second mounting portion is provided with the rotating shaft. The second abutting portion abuts against the frame of the first photovoltaic device when the first photovoltaic device and the second photovoltaic device are unfolded.

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