Photovoltaic device

Abstract

The embodiment of the utility model discloses photovoltaic equipment, which comprises a plurality of photovoltaic devices and adapters, and is characterized in that each photovoltaic device comprises a photovoltaic panel and a frame, and the frame wraps the edge of the photovoltaic panel; the adapter is connected with two adjacent photovoltaic devices, the adapter comprises a first rotating piece and a second rotating piece rotationally connected with the first rotating piece, the first rotating piece is fixed on a frame of one of the two adjacent photovoltaic devices, and the second rotating piece is fixed on a frame of the other photovoltaic device; the photovoltaic equipment can be in a folded state and an unfolded state, and when the photovoltaic equipment is in the unfolded state, every two adjacent photovoltaic devices are kept at a preset angle through an adapter. Thus, when the photovoltaic equipment is in the unfolded state, the angle between the two adjacent photovoltaic devices is limited to be the preset angle by the adapter, so that the state of the photovoltaic equipment is kept stable, the illumination area of the photovoltaic devices is increased, and the photovoltaic equipment is facilitated to convert solar energy into electric energy.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic devices, and more specifically, to a photovoltaic device. Background Art

[0002] Photovoltaic panels are devices that convert solar energy into light energy. In order to reduce and increase the amount of power generated and make photovoltaic panels easier to carry, it is often necessary to electrically connect multiple photovoltaic panels. How to use photovoltaic panels more conveniently has become a technical problem to be solved. Utility Model Content

[0003] An embodiment of the present application provides a photovoltaic device.

[0004] A photovoltaic device includes a plurality of photovoltaic devices and an adapter, each photovoltaic device includes a photovoltaic panel and a frame, and 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 detachably 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, and when the photovoltaic device is in the unfolded state, the two adjacent photovoltaic devices are maintained at a predetermined angle by the adapter. In this way, when the photovoltaic device is in the unfolded state, the angle between the two adjacent photovoltaic devices is limited to a predetermined angle by the adapter, so that the state of the photovoltaic device remains stable, the illumination area of ​​the photovoltaic device increases, and it is beneficial for the photovoltaic device to convert solar energy into electrical energy.

[0005] In some embodiments, the first rotating member is provided with a first adapter hole, and the second rotating member is provided with a rotating shaft, and the rotating shaft is movably inserted in the first adapter hole.

[0006] In some embodiments, the second rotating member is provided with a card slot and two receiving slots respectively arranged on both sides of the card slot and connected to the card slot, the receiving slot is coaxially arranged with the first adapter hole, the number of the rotating shafts is two, the two rotating shafts are respectively movably arranged in the two receiving slots, and the rotating shaft extends out of the receiving slot and is inserted into the first adapter hole.

[0007] In some embodiments, the adapter also includes a handle connected to the rotating shaft, and the second rotating member is provided with an avoidance groove for movement of the handle, and the avoidance groove is connected to the accommodating groove and extends along the axial direction of the first adapter hole.

[0008] In some embodiments, the adapter further includes an elastic member disposed in each of the receiving grooves. The elastic member is compressively disposed between the rotating shaft and the receiving groove. When opposite external forces are applied to the two handles, the rotating shafts move away from each other and retract into the avoidance groove, 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 approach each other and extend out of the receiving groove.

[0009] In some embodiments, two adjacent photovoltaic devices are respectively a first photovoltaic device and a second photovoltaic device. The first rotating member includes a first adapter portion, a first mounting portion, and a first abutting portion. The first mounting portion and the first abutting portion are both connected to the first adapter portion. The first mounting portion is fixedly connected to the frame of the first photovoltaic device. The first mounting portion is provided with the transfer hole. The first abutting portion abuts against the frame of the second photovoltaic device when the first photovoltaic device and the second photovoltaic device are unfolded. The second rotating member includes a second adapter portion, a second mounting portion, and a second abutting portion. The second mounting portion and the second abutting portion are both connected to the second adapter portion. 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.

[0010] In some embodiments, the first rotating member and the second rotating member are connected to the long edges of the corresponding frames.

[0011] In some embodiments, the photovoltaic device includes a first junction box and a second junction box. The first junction box and the second junction box are disposed on the photovoltaic panel. Among them, 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.

[0012] In some embodiments, the photovoltaic panel includes a substrate, a battery cell, and a light-transmitting cover plate. The battery cell is disposed on the substrate, and the light-transmitting cover plate covers the battery cell. 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 plate. 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 for receiving the first junction box and the second junction box between the two photovoltaic devices.

[0013] In some embodiments, the photovoltaic device further includes a second cylindrical portion. The second cylindrical portion is disposed on one side of the substrate. The second cylindrical portion is aligned with the first cylindrical portion along the thickness direction of the photovoltaic panel.

[0014] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0016] Figure 1 is a perspective schematic view of the photovoltaic device according to an embodiment of the present utility model in a folded state;

[0017] Figure 2 is a perspective schematic view of the photovoltaic device according to an embodiment of the present utility model in an unfolded state;

[0018] Figure 3 is a plan schematic view of the photovoltaic device according to an embodiment of the present utility model in a folded state;

[0019] Figure 4 is another perspective schematic view of the photovoltaic device according to an embodiment of the present utility model in an unfolded state;

[0020] Figure 5 is Figure 4 a schematic view of another angle of the photovoltaic device;

[0021] Figure 6 is a partially enlarged schematic view of the photovoltaic device according to an embodiment of the present utility model in a folded state;

[0022] Figure 7 is a perspective schematic view of the photovoltaic device according to an embodiment of the present utility model;

[0023] Figure 8 is a perspective schematic view of another angle of the photovoltaic device according to an embodiment of the present utility model;

[0024] Figure 9 is a plan schematic view of the photovoltaic device according to an embodiment of the present utility model;

[0025] Figure 10 is a perspective schematic view of the first junction box of the photovoltaic device according to an embodiment of the present utility model;

[0026] Figure 11 is an exploded schematic view of the first junction box of the photovoltaic device according to an embodiment of the present utility model;

[0027] Figure 12 is a perspective schematic view of the frame of the photovoltaic device according to an embodiment of the present utility model;

[0028] Figure 13It is an exploded schematic view of the frame of the photovoltaic device according to the embodiment of the present utility model;

[0029] Figure 14 It is an enlarged schematic view of a part of the frame of the photovoltaic device according to the embodiment of the present utility model;

[0030] Figure 15 It is an enlarged schematic view of a part of the photovoltaic device in the deployed state according to the embodiment of the present utility model;

[0031] Figure 16 It is a three-dimensional schematic view of the adapter according to the embodiment of the present utility model;

[0032] Figure 17 It is another three-dimensional schematic view of the adapter according to the embodiment of the present utility model;

[0033] Figure 18 It is an exploded schematic view of the adapter according to the embodiment of the present utility model.

[0034] Main element symbol description:

[0035] 1000 - Photovoltaic device; 100 - Photovoltaic module; 110 - Accommodating space; 10 - Photovoltaic panel; 11 - Substrate; 12 - Solar cell; 13 - Transparent cover plate; 14 - Positive lead; 141 - First positive terminal; 142 - Second positive terminal; 15 - Negative lead; 151 - First negative terminal; 152 - Second negative terminal; 16 - Positive current lead; 161 - Positive current lead segment; 17 - Negative current lead; 171 - Negative current lead segment; 20 - Frame; 21 - Enclosing member; Insertion hole 210; 211 - Long member; 212 - Short member; 213 - Through hole; 22 - Connecting member; 221 - Connection part; 222 - Insertion part; 223 - Threaded hole; 23 - Marker; 24 - Mounting groove; 25 - Mounting hole; 30 - Junction box; 31 - First junction box; 32 - Second junction box; 321 - Box body; 3211 - Storage 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 - Adapter; 201 - First rotating part; 2011 - First adapter hole; 2013 - First adapter part; 2014 - First mounting part; 2015 - First abutting part; 202 - Second rotating part; 2021 - Second adapter hole; 2022 - Card slot; 2023 - Second adapter part; 2024 - Second mounting part; 2025 - Second abutting part; 2026 - Accommodating groove; 2027 - Avoidance groove; 203 - Rotating shaft; 204 - Handle; 205 - Elastic member. Detailed implementation manners

[0036] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0037] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, an electrical connection or a connection capable of mutual communication; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0040] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0041] Please refer to Figures 1 - 3 , the photovoltaic device 1000 of the embodiment of the present application includes a photovoltaic device 100 and an adapter 200. The number of photovoltaic devices 100 is multiple. For example, the number of photovoltaic devices 100 can be 2, 4, 5, 6, 8, etc. The multiple photovoltaic devices 100 can be rotatably connected through the adapter 200. Or rather, the adapter 200 can connect two adjacent photovoltaic devices 100. The photovoltaic device 100 is generally in a plate shape, and the photovoltaic device 100 has a long edge and a short edge that is substantially perpendicular to the long edge.

[0042] 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 said photovoltaic device 100 is used to abut against the bearing surface. Or rather, the multiple photovoltaic devices 100 can be detachably connected end to end in sequence. For example, the multiple photovoltaic devices 100 can be detachably connected end to end along the width direction of the photovoltaic device 100. That is, the long edges of the multiple photovoltaic devices 100 can be detachably connected through the adapter 200, which is beneficial to the assembly and disassembly of the photovoltaic device 1000 and facilitates the use of the photovoltaic device 1000.

[0043] Since the multiple photovoltaic devices 1000 are rotatably connected, 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 multiple photovoltaic devices 100 are stacked, as Figure 3 shown. When the photovoltaic device 1000 is in the unfolded state, a predetermined angle α is formed between two adjacent photovoltaic devices 100, as Figure 2 shown. Exemplarily, when the photovoltaic device 1000 is in the unfolded state, two adjacent photovoltaic devices 100 are held at a predetermined angle through the adapter 200. Thus, the photovoltaic device 1000 is convenient for storage and transportation 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 is stable, the light receiving area of the photovoltaic device 100 is increased, which is beneficial to the photovoltaic device 1000 to convert solar energy into electrical energy.

[0044] In one example, the predetermined angle α is, for example, 120° - 150°. For example, the predetermined angle α can be angles such as 120°, 125°, 130°, 140°, or 150°. In this way, the area where the photovoltaic device 100 unfolds is relatively large, which is beneficial for the photovoltaic device 1000 to convert solar energy into electrical energy.

[0045] 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 angles such as 50°, 60°, or 70°.

[0046] The adjacent photovoltaic devices 100 are inclined with respect to the bearing surface. On the premise of not reducing the power generation efficiency, on the one hand, the floor area occupied by the photovoltaic device 1000 can be saved; on the other hand, when there are obstacles such as leaves on the photovoltaic device 100, the obstacles such as leaves can slide off the surface of the photovoltaic device 100, avoiding the reduction of the power generation efficiency caused by the partial occlusion of the photovoltaic device 100.

[0047] Please refer to Figures 7 - 9 , in some embodiments, the photovoltaic device 100 may include a photovoltaic panel 10, a frame 20, a junction box 30, a first cylindrical part 40, and a second cylindrical part 50. The photovoltaic panel 10 is disposed on the frame 20. For example, the frame 20 wraps the edge of the photovoltaic panel 10, or rather, the edge of the photovoltaic panel 10 is embedded in the frame 20.

[0048] The junction box 30 is disposed on the photovoltaic panel 10, and the junction box 30 is electrically connected to the photovoltaic panel 10. The number of junction boxes 30 for each photovoltaic panel 10 can be two. The junction box 30 may include a first junction box 31 and a second junction box 32, and both the first junction box 31 and the second junction box 32 are electrically connected to the photovoltaic panel 10. The adjacent two photovoltaic devices 100 are electrically connected through the first junction box 31 and the second junction box 32.

[0049] The first cylindrical part 40 protrudes from the surface of the photovoltaic panel 10. For example, the first cylindrical part 40 can be disposed on the frame 20, and the first cylindrical part 40 protrudes from the frame 20 toward the light-receiving surface of the photovoltaic device 100. The first cylindrical part 40 is used to form an accommodation space 110 for accommodating the junction box 30 between two stacked photovoltaic devices 100, so that the junction box 30 is not easily interfered with by other adjacent photovoltaic panels 10, which is beneficial for multiple photovoltaic devices 100 to be stacked to form an integral body.

[0050] The second cylindrical part 50 protrudes from the backlight surface of the photovoltaic panel 10. The second cylindrical part 50 is used to limit the positions of two adjacent photovoltaic devices 100, so that the photovoltaic panels 10 of two adjacent photovoltaic devices 100 are separated from each other, reducing the risk of reducing the service life of the photovoltaic device 100 due to the mutual scraping of the two photovoltaic panels 10.

[0051] Please refer to Figure 7 and Figure 8 In one embodiment, the photovoltaic panel 10 may include a substrate 11, solar cells 12, and a light-transmitting cover plate 13. The solar cells 12 are disposed on the substrate 11, and the light-transmitting cover plate 13 covers the solar cells 12. Specifically, the substrate 11 may be made of materials such as PET, CPC, fiberglass board, or glass. The substrate 11 may be a sheet such as a rectangle or a rounded rectangle. The solar cells 12 may be fixed on the substrate 11 by means of adhesion. The solar cells 12 are used to convert light energy into solar energy, and the number of the solar cells 12 may be multiple, and the multiple solar cells 12 are arranged in an array. For example, the row arrangement direction of the solar cells 12 is the same as the length direction of the substrate 11. The column arrangement direction of the solar cells 12 is the same as the width direction of the substrate 11.

[0052] The light-transmitting cover plate 13 may be made of materials such as PET, CPC, or glass, and the light-transmitting cover plate 13 may have the same shape and size as the substrate 11. The light-transmitting cover plate 13 may be bonded to the substrate 11 or the solar cells 12 by means of adhesion.

[0053] Please refer to Figures 7 - 9 In some embodiments, the photovoltaic panel 10 further includes a positive electrode trace 14 and a negative electrode trace 15. The positive electrode trace 14 is disposed on the substrate 11 and electrically connected to the solar cells 12. The positive electrode trace 14 has a first positive terminal 141 and a second positive terminal 142; the negative electrode trace 15 is disposed on the substrate 11 and electrically connected to the solar cells 12. The negative electrode trace 15 has a first negative terminal 151 and a second negative terminal 152. Among them, the first positive terminal 141 and the first negative terminal 151 are spaced apart and are used to cooperate with each other to be electrically connected to the first junction box 31, and the second positive terminal 142 and the second negative terminal 152 are spaced apart and are used to cooperate with each other to be electrically connected to the second junction box 32.

[0054] Thus, through the positive electrode trace 14 and the negative electrode trace 15 of the photovoltaic panel 10, the first junction box 31 and the second junction box 32 can be arranged in parallel, which is beneficial for the photovoltaic panel 10 to be electrically connected to an external device through at least one of the first junction box 31 and the second junction box 32, facilitating 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.

[0055] Specifically, the first junction box 31 is disposed on the photovoltaic panel 10 and electrically connected to the first positive terminal 141 and the first negative terminal 151, and the second junction box 32 is disposed on the photovoltaic panel 10 and electrically connected to the second positive terminal 142 and the second negative terminal 152. Further, the first junction box 31 and the second junction box 32 may both be disposed on the light-transmitting cover plate 13. Since the positive electrode trace 14 and the negative electrode trace 15 are both disposed on the substrate 11, the light-transmitting cover plate 13 may be provided with vias 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, and thus be connected to the first junction box 31 and the second junction box 32.

[0056] Please refer to Figure 9 , in some embodiments, the positive electrode trace 14 surrounds a plurality of solar cells 12 and extends along the circumferential direction of the substrate 11, and the negative electrode trace 15 surrounds a plurality of solar cells 12 and extends along the circumferential direction of the substrate 11. In this way, the positive electrode trace 14 and the negative electrode trace 15 are matched with the shape of the substrate 11, reducing the probability of interference between the positive electrode trace 14 and the negative electrode trace 15 and the solar cells 12 respectively. Exemplarily, the substrate 11 is generally a square plate. Therefore, the positive electrode trace 14 and the negative electrode trace 15 may be in a zigzag shape.

[0057] Please refer to Figures 7 - 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. Or rather, the first positive terminal 141 and the second positive terminal 142 are respectively disposed close to the two long edges of the substrate 11, and the first negative terminal 151 and the second negative terminal 152 are respectively disposed close to the two short edges of the substrate 11. For this reason, the first junction box 31 and the second junction box 32 are respectively disposed on both sides of the photovoltaic panel 10 in the width direction, such that the photovoltaic device 100 is electrically connected to an external device from one side of the length edge of the photovoltaic panel 10, and the space for the first junction box 31 and the second junction box 32 is larger, which is conducive to electrically connecting two photovoltaic devices 100 together by the first junction box 31 and the second junction box 32.

[0058] Please refer to Figure 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. Or rather, 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.

[0059] In this way, as Figure 4As shown, in two adjacent photovoltaic devices 100, the first junction box 31 of one photovoltaic device 100 is electrically connected to the second junction box 32 of another photovoltaic device 100 through a cable 33. The first junction box 31 and the second junction box 32 can be arranged at intervals along the length direction of the photovoltaic panel 10, so that the bending angle of the cable 33 between the first junction box 31 on one photovoltaic device 100 and the second junction box 32 on another photovoltaic device 100 is relatively small. This is beneficial for the electrical connection between two adjacent photovoltaic devices 100 through the first junction box 31 and the second junction box 32.

[0060] Please refer to Figure 9 , in some embodiments, the photovoltaic panel 10 further includes a positive current lead 16 and a negative current lead 17. The positive current lead 16 is electrically connected to the battery cell 12 and the positive current trace 14, and the negative current lead 17 is electrically connected to the battery cell 12 and the negative current trace 15. In this way, the positive current lead 16 can lead the current of the battery cell 12 to the positive current trace 14, and the negative current lead 17 can lead the current of the battery cell 12 to the negative current trace 15, so that the positive current trace 14 and the negative current trace 15 can lead the current out of the photovoltaic panel 10.

[0061] Please refer to Figure 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. In this way, the arrangement of the positive current lead 16 and the negative current lead 17 has a larger range, reducing the probability of short circuit between the positive current lead 16 and the negative current lead 17. Specifically, the positive current lead 16 is located between the battery cell 12 and the positive current trace 14, and the negative current lead 17 is located between the battery cell 12 and the negative current trace 15.

[0062] Please refer to Figure 9 , in some embodiments, the positive current lead 16 includes a plurality of positive current lead segments 161 arranged at intervals along 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 along 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 battery cell 12. One of the positive current leads 16 is connected to the positive current trace 14, and one of the negative current leads 17 is connected to the negative current trace 15. In this way, the plurality of positive current leads 16 and the plurality of negative current leads 17 can connect the battery cells 12 in series, which is beneficial for leading out the current generated by the battery cells 12.

[0063] In some embodiments, the width of the positive electrode trace 14 is greater than the width of the positive electrode lead wire 16, and the width of the negative electrode trace 15 is greater than the width of the negative electrode lead wire 17. Since the current flow in the positive electrode trace 14 and the negative electrode trace 15 is relatively large, therefore, the width of the positive electrode trace 14 is greater than the width of the positive electrode lead wire 16, and the width of the negative electrode trace 15 is greater than the width of the negative electrode lead wire 17, which is beneficial for the photovoltaic panel 10 to lead the current to external devices.

[0064] Please refer to Figures 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. The frame 20 may 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, and the connecting member 22 is detachably inserted into two adjacent enclosing members 21.

[0065] In this way, the enclosing members 21 and the connecting members 22 of the frame 20 are detachably connected by means of insertion, making the frame 20 easy to assemble and easier to wrap the edge of the photovoltaic panel 10, so that the photovoltaic panel 10 and the frame 20 are easy to assemble and disassemble.

[0066] Specifically, the enclosing members 21 and the connecting members 22 can be made of a material with relatively high strength such as aluminum alloy, so as to improve the impact resistance of the frame 20 and be beneficial to protecting the photovoltaic panel 10.

[0067] In some embodiments, the enclosing member 21 is in a straight strip shape, and the connecting member 22 forms the corner part of the frame 20. Since the manufacturing process of forming the corner part of the frame 20 with relatively large-sized parts is relatively difficult, therefore, the frame 20 is made in a straight strip shape, and the connecting member 22 forms the corner part of the frame 20, which can reduce the manufacturing difficulty of the frame 20.

[0068] Please refer to Figures 12 - 13 , in some embodiments, the enclosing member 21 includes a long member 211 and a short member 212. The long member 211 forms the long edge of the frame 20, and the short member 212 forms the short edge of the frame 20. The connecting member 22 connects the adjacent long member 211 and short member 212. In this way, the connecting member 22 can connect the long member 211 and the short member 212 to form the frame 20. Specifically, the number of both the long member 211 and the short member 212 is two, and the number of the connecting members 22 is four. The two long members 211 are arranged substantially in parallel, and the two short members 212 are arranged substantially in parallel.

[0069] Please refer to Figure 14, in some embodiments, a marker 23 is provided on the surrounding member 21. Optionally, the marker 23 is provided on one of the short members 212. In this way, the marker 23 can enable multiple photovoltaic devices 100 to be assembled in a predetermined orientation, which is beneficial to improving the assembly efficiency of the multiple photovoltaic devices 100.

[0070] In some embodiments, the marker 23 includes a coating provided on the surface of the surrounding member 21, and the color of the coating is different from the color of the short member 212. In this way, the marker 23 can be distinguished from the surrounding member 21, and the orientation where the photovoltaic device 100 needs to be assembled can be recognized more quickly. Exemplarily, the color of the coating can be colors such as red and yellow, and the color of the surrounding member 21 can be colors such as gray and black. Of course, the marker 23 can also be a bump, a number or other markers.

[0071] Please refer to Figure 14 , in some embodiments, the connecting member 22 includes a connecting portion 221 and a plugging portion 222 connected to the connecting portion 221. The surrounding member 21 is provided with a plugging hole 210, and the plugging portion 222 is inserted into the plugging hole 210, and the connecting portion 221 is docked with the surrounding member 21. In this way, the cooperation of the plugging hole 210 and the plugging portion 222 makes it easy to plug the connecting member 22 and the surrounding member 21 together.

[0072] In some embodiments, the plugging hole 210 extends along the length direction of the surrounding member 21. Optionally, the plugging hole 210 can penetrate through both ends of the surrounding member 21 along the length direction of the surrounding member 21. In this way, the plugging hole 210 can reduce the weight of the surrounding member 21, thereby reducing the weight of the frame 20, which is beneficial to the transportation of the photovoltaic device 100.

[0073] Please refer to Figure 14 , in some embodiments, the plugging portion 222 is provided with a threaded hole 223, the surrounding member 21 is provided with a through hole 213, and the surrounding member 21 and the plugging portion 222 are fixed by a threaded fastener passing through the through hole 213 and screwing with the threaded hole 223. In this way, the surrounding member 21 and the connecting portion 221 are connected more stably, reducing the risk of loosening of the frame 20.

[0074] Please refer to Figure 14 , in some embodiments, the frame 20 is provided with an installation groove 24 spaced from the plugging hole 210. The notch of the installation groove 24 faces away from the plugging hole 210. The installation groove 24 extends along the frame 20 and penetrates through the surrounding member 21 and the connecting portion 221. The installation groove 24 is used for installing the photovoltaic panel 10. In this way, the edge of the photovoltaic panel 10 can be embedded in the installation groove 24, making the connection between the frame 20 and the photovoltaic panel 10 more stable.

[0075] In one example, during the assembly of the photovoltaic device 100, the enclosing member 21 and the connecting member 22 can be successively clamped to the edge of the photovoltaic panel 10 through the installation groove 24, and then the enclosing member 21 and the connecting member 22 are locked with screws, so that the structure of the frame 20 is stable. Finally, glue is injected into the installation groove 24 to bond the frame 20 and the photovoltaic panel 10 with the glue, improving the stability of the photovoltaic device 100.

[0076] Please refer to Figure 2 and Figure 14 , in some embodiments, the frame 20 is provided with installation holes 25 penetrating the frame 20 in the thickness direction of the photovoltaic panel 10. The installation holes 25 are used for the insertion pins 300 to pass through so that the insertion pins 300 are inserted under the bearing surface. In this way, the installation holes 25 can make the installation of the photovoltaic device 100 stable, keep the position of the photovoltaic device 100 stable, and be beneficial to improving the power generation efficiency of the photovoltaic device 100. Specifically, after the photovoltaic device 1000 is unfolded, the insertion pins 300 can pass through the installation holes 25 and be inserted under the bearing surface, so that the position of the photovoltaic device 1000 is kept stable.

[0077] In some embodiments, the installation holes 25 are provided at the corner parts of the frame 20. In this way, the installation holes 25 are located at the edge parts of the frame 20, which can improve the wind resistance of the photovoltaic device 100 and thus improve the stability after installation.

[0078] Please refer to Figure 12 , in some embodiments, each corner part of the frame 20 is provided with installation holes 25. In this way, the frame 20 has better structural consistency, which is beneficial to the production and manufacture of the frame 20. Specifically, the installation holes 25 penetrate the connecting member 22, or rather, the connecting member 22 is provided with installation holes 25 penetrating the connecting member 22 in the thickness direction of the photovoltaic panel 10. Exemplarily, the installation holes 25 penetrate the connecting part 221. After the installation of the photovoltaic device 100, the first photovoltaic device 100 and the last photovoltaic device 100 pass the insertion pins 300 through the installation holes 25 so that the insertion pins 300 are inserted under the bearing surface. It should be noted that among the first photovoltaic device 100 and the last photovoltaic device 100, the insertion pins 300 are not inserted into the installation holes 25 far from the bearing surface.

[0079] 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. Please refer to again Figure 6 and Figure 7, in one embodiment, the first junction box 31 is connected with a cable 33, the second junction box 32 is provided with an insertion interface 321, and the connector at one end of the cable 33 is adapted to be inserted into the insertion interface 321. Or rather, one end of the cable 33 is fixed on the first junction box 31, the second junction box 32 is provided with an insertion interface 321, and in two adjacent photovoltaic devices 100, the connector at the other end of the cable 33 on one of the photovoltaic devices 100 is inserted into the insertion interface 321 of the second junction box 32 of the other photovoltaic device 100. For this purpose, in 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, which is conducive to electrically connecting the two photovoltaic devices 100.

[0080] Specifically, please refer to Figures 10 - 11 , in one embodiment, the second junction box 32 includes a box body 321, a box cover 322 and a wiring seat 323. An accommodation space 3211 is provided inside the box body 321. An insertion interface 3212 communicating with the accommodation space 3211 is provided at an end of the box body 321. An opening 3213 spaced from the insertion interface 3212 and communicating with the accommodation space 3211 is provided at the top of the box body 321. The box cover 322 seals the opening 3213. The wiring seat 323 is arranged in the accommodation space 3211 and partially located between the opening 3213 and the insertion interface 3212. In two adjacent photovoltaic devices 100, the connector at 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 plugged into the wiring seat 323.

[0081] In this way, an opening 3213 spaced from the insertion interface 3212 and communicating with the accommodation space 3211 is provided at the top of the box body 321, and the wiring seat 323 is arranged in the accommodation space 3211 and partially located between the opening 3213 and the insertion interface 3212. This not only makes it easy to install the wiring seat 323 into the accommodation space 3211, but also enables the circumferential surface of the accommodation space 3211 near the insertion interface 3212 to be a closed-loop surface, which is conducive to improving the waterproof performance of the connection between the wiring seat 323 and the connector of the cable.

[0082] Please refer to Figures 10 - 11 , in some embodiments, a limiting rib 3214 is provided on the inner wall of the accommodation space 3211, and a limiting groove 3231 is provided on the wiring seat 323. The limiting rib 3214 is clamped in the limiting groove 3231 to limit the normal movement of the wiring seat 323 along the insertion interface 3212. In this way, the connector of the cable 33 and the wiring seat 323 can be accurately plugged together, improving the connection stability between the connector of the cable 33 and the wiring seat 323. The normal direction of the insertion interface 3212 is the insertion direction of the connector of the cable.

[0083] In some embodiments, when the plurality of photovoltaic devices 100 are disassembled, the connectors of the cable 33 can be plugged into external devices. 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, thus facilitating the use of a single photovoltaic device 100.

[0084] Please refer to Figure 6 and Figure 7 , in some embodiments, the first cylindrical portion 40 is disposed on one side of the light-transmitting cover plate 13. Since the junction box 30 is disposed on the light-transmitting cover plate 13, the first cylindrical portion 40 is disposed on one side of the light-transmitting cover plate 13. In this way, when two photovoltaic devices 100 are stacked, the first cylindrical portion 40 forms a receiving space 110 for receiving junction boxes 30 such as the first junction box 31 and the second junction box 32 between the two photovoltaic devices 100. The first cylindrical portions 40 of two adjacent photovoltaic devices 100 are in abutment with each other.

[0085] Specifically, the first cylindrical portion 40 can be disposed on the frame 20, so that the first cylindrical portion 40 can be more easily installed. Further, the first cylindrical portion 40 is disposed at a corner portion of the frame 20. As mentioned above, the connecting member 22 forms the corner portion of the frame 20. Therefore, the first cylindrical portion 40 can be disposed on the connecting member 22. For example, the first cylindrical portion 40 can be integrally formed with the connecting member 22.

[0086] In some embodiments, the number of the first cylindrical portions 40 is plural, and the plurality of first cylindrical portions 40 are arranged at intervals along the circumferential direction of the photovoltaic panel 10. Thus, the plurality of first cylindrical portions 40 can provide multi-point support for two adjacent photovoltaic devices 100, which is beneficial to maintaining the stability of the form of the receiving space 110 formed between two adjacent photovoltaic devices 100, thereby reducing the interference with the first junction box 31 and the second junction box 32.

[0087] Specifically, in some embodiments, the first cylindrical portion 40 extends from one side of the self-connecting portion 221, and the first cylindrical portion 40 is in communication with the mounting hole 25.

[0088] Please refer to Figure 6 and Figure 7 , in some embodiments, the first cylindrical portion 40 is a magnetic member. Thus, two adjacent photovoltaic devices 100 can be attracted together by the first cylindrical portion 40, which is beneficial to keeping the position of the photovoltaic device 100 stable.

[0089] Please refer to Figures 6 - 8, in some embodiments, the second cylindrical portion 50 is disposed on one side of the substrate 11, and the second cylindrical portion 50 is aligned with the first cylindrical portion 40 in the thickness direction of the photovoltaic panel 10. For example, the first cylindrical portion 40 and the second cylindrical portion 50 are respectively disposed on two sides of the frame 20 in the thickness direction of the photovoltaic panel 10. The second cylindrical portion 50 can provide support for two adjacent photovoltaic devices 100, so that after the photovoltaic device 1000 is in the folded state, the states of two adjacent photovoltaic devices 100 are more stable.

[0090] As Figure 14 shown, in some embodiments, the second cylindrical portion 50 is disposed on the frame 20. More specifically, the second cylindrical portion 50 can be disposed on the connecting member 22. The second cylindrical portion 50 can also be a magnetic member. In this way, two adjacent photovoltaic devices 100 can be attracted together by the second cylindrical portion 50, which is beneficial to keeping the positions of the photovoltaic devices 100 stable.

[0091] Specifically, in some embodiments, the second cylindrical portion 50 extends from the other side of the connecting portion 221, and the second cylindrical portion 50 communicates with the mounting hole 25.

[0092] As Figure 14 shown, in some embodiments, the mounting hole 25 penetrates through the first cylindrical portion 40 and the second cylindrical portion 50. This makes the cooperation among the first cylindrical portion 40, the second cylindrical portion 50 and the mounting hole 25 more compact.

[0093] Please refer to Figure 15 , in some embodiments, the adapter 200 connects the frames 20 of two adjacent photovoltaic devices 100 to rotatably connect the two adjacent photovoltaic devices 100. In this way, the frame 20 can provide a mounting position for the adapter 200, so that two adjacent photovoltaic devices 100 can be rotatably connected through the adapter 200.

[0094] In one example, as discussed above, the long member 211 forms the long edge of the frame 20, the short member 212 forms the short edge of the frame 20, and the connecting member 22 connects the adjacent long member 211 and short member 212. Therefore, the frame 20 includes two long edges and two short edges. The two long edges are oppositely arranged, and the two short edges are located between the two long edges. The adapter 200 can connect the long edge of the frame 20, or rather, the adapter 200 can connect the long member 211 of the frame 20, so that the center of gravity of the photovoltaic device 1000 is lower in the folded state and the transportation is more convenient.

[0095] Please refer to Figure 15, for ease of description, 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.

[0096] Or rather, 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 enable the first photovoltaic device 101 and the second photovoltaic device 102 to be rotatably connected.

[0097] 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 two adjacent photovoltaic devices 100. In this way, when the photovoltaic device 1000 is folded, it is convenient for storage and transportation. 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 is kept stable, and the light receiving area of the photovoltaic device 100 is increased, which is beneficial to the photovoltaic device 1000 to convert solar energy into electric energy.

[0098] 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 α between the first photovoltaic device 101 and the second photovoltaic device 102.

[0099] In this way, the first photovoltaic device 101 and the second photovoltaic device 102 can use their own frames 20 for positioning to form a predetermined angle α, which can simplify the structure of the adapter 200 and make the unfolded state of the first photovoltaic device 101 and the second photovoltaic device 102 stable, which is beneficial to the photovoltaic device 1000 to convert solar energy into light energy.

[0100] In some embodiments, for the convenience of using 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 disassembled, which is beneficial to the separate use or transportation of the photovoltaic device 100.

[0101] Please refer to Figures 15 - 18 , in some embodiments, the first rotating member 201 is provided with a first transfer hole 2011, and the second rotating member 202 is provided with a rotating shaft 203. The rotating shaft 203 is movably inserted into the first transfer hole 2011 and the second transfer hole 2021. In this way, the first transfer hole 2011 and the second transfer hole 2021 are conducive to the installation of the rotating shaft 203, so that the first rotating member 201 is rotatably connected to the second rotating member 202.

[0102] Please refer to Figures 15 - 18 , 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 communicating with the clamping groove 2022. The accommodating grooves 2026 are coaxially arranged with the first transfer hole 2011 and the second transfer hole 2021. The number of the rotating shafts 203 is two, and the two rotating shafts are respectively movably arranged in the two accommodating grooves 2026. The rotating shafts extend out of the accommodating grooves 2026 and are inserted into the first transfer hole 2011. In this way, a part of the first rotating member 201 is accommodated in the clamping groove 2022, and the rotating shaft 203 extends out of the second transfer hole 2021 and is inserted into a corresponding first transfer hole 2011, so that the structure of the adapter 200 is more compact, and the first rotating member 201 and the second rotating member 202 rotate more smoothly.

[0103] Please refer to Figures 15 - 18 , in some embodiments, the adapter 200 includes a handle 204 connected to the rotating shaft 203. The second rotating member 202 is provided with an avoidance groove 2027 for the handle 204 to move. The avoidance groove 2027 communicates with the second transfer hole 2021 and extends along the axial direction of the first transfer 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, and one end of the handle 204 can be inserted into the rotating shaft 203, so that the connection between the handle 204 and the rotating shaft 203 is stable. 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 drive the rotating shaft 203 to move more easily.

[0104] Please refer to Figures 15 - 18, in some embodiments, the adapter 200 further includes an elastic member 205 disposed in each receiving groove 2026. The elastic member 205 is compressively disposed between the rotating shaft 203 and the receiving groove 2026. When opposite external forces are applied to the two handles 204, the rotating shafts 203 move away from each other and retract into the avoidance groove 2027 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 approach each other and extend out of the receiving groove 2026. Thus, the elastic member 205 makes the assembly of the first rotating member 201 and the second rotating member 202 more convenient, and can keep the rotating shaft 203 in a state of being inserted into the first transfer hole 2011 and the second transfer hole 2021 at the same time, which is beneficial to the first rotating member 201 and the second rotating member 202 rotating more stably and smoothly.

[0105] Specifically, the elastic member 205 is, for example, an elastic element such as a spiral spring. It can be understood that since the rotating shaft 203 is connected to the handle 204, under the limiting action of the handle 204 and the groove wall of the avoidance groove 2027, at least a part of the rotating shaft 203 is kept in the second transfer hole 2021.

[0106] In one example, when the two photovoltaic devices 100 are assembled, the two handles 204 can be pinched by hand, that is, the two handles 204 are brought closer to each other to make the two rotating shafts 203 retract into the second transfer hole 2021. After the first rotating hole 2011 is aligned with the second transfer hole 2021, release the hand. Under the action of the elastic member 205, the rotating shaft 203 extends from the second transfer hole 2021 into the first transfer hole 2011, so that the two photovoltaic devices 100 are assembled together.

[0107] Please refer to Figures 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 α between the first photovoltaic device 101 and the second photovoltaic device 102. Thus, 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 beneficial to keeping the states of the first photovoltaic device 101 and the second photovoltaic device 102 stable.

[0108] Please refer to Figures 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 mounting portion 2014 is provided with a first adapter hole 2011. 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;

[0109] The second rotating member 202 includes 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 both 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 mounting portion 2024 is provided with a second adapter hole 2021. 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. Thus, the first abutting portion 2015 and the second abutting portion 2025 can achieve angle limitation 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.

[0110] 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 through fasteners such as screws.

[0111] 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. Thus, the center of gravity of the photovoltaic device 1000 in the folded state is lower 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.

[0112] In one embodiment, the photovoltaic device 100 includes a photovoltaic panel 10, a junction box 30, and a first cylindrical portion 40. The photovoltaic panel 10 includes a substrate 11, solar cells 12, and a light-transmitting cover plate 13. The solar cells 12 are disposed on the substrate 11, and the light-transmitting cover plate 13 covers the solar cells 12; the junction box 30 is disposed on the light-transmitting cover plate 13; the first cylindrical portion 40 is disposed on one side of the light-transmitting cover plate 13, and the first cylindrical portion 40 is used to form an accommodation space for accommodating the junction box 30 between two of the photovoltaic devices 100 when the two photovoltaic devices 100 are stacked.

[0113] In this way, the junction box 30 is arranged on the transparent cover plate 13, so that the photovoltaic device 100 is convenient to use during use, and there is no need to connect wires from the backlight side of the photovoltaic device 100. In addition, the first barrel 40 forms a storage space for accommodating the junction box 30 between the 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.

[0114] In summary, in some embodiments, the photovoltaic device 1000 includes a plurality of photovoltaic devices 100 and an adapter 200, each photovoltaic device 100 includes a photovoltaic panel 10 and a frame 20, the frame 20 wraps the edge of the photovoltaic panel 10; the adapter 200 connects two adjacent photovoltaic devices 100, the adapter 200 includes a first rotating member 201 and a second rotating member 202 rotatably connected to the first rotating member 201, the first rotating member 201 is fixed to the frame 20 of one of the two adjacent photovoltaic devices 100, and the second rotating member 202 is fixed to the frame 20 of the other photovoltaic device 100. The photovoltaic device 1000 can be in a folded state and an unfolded state, and when the photovoltaic device 1000 is in the unfolded state, the two adjacent photovoltaic devices 100 are maintained at a predetermined angle by the adapter 200. In this way, 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, and the illumination area of ​​the photovoltaic device 100 is increased, which is beneficial for the photovoltaic device 1000 to convert solar energy into electrical energy.

[0115] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0116] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A photovoltaic device, characterized in that, Comprising: A plurality of photovoltaic devices, each photovoltaic device including a photovoltaic panel and a frame, the frame wrapping the edge of the photovoltaic panel; An adapter, the adapter connecting two adjacent photovoltaic devices, the adapter including a first rotating member and a second rotating member, the first rotating member and the second rotating member being detachably rotatably connected, the first rotating member being fixed to the frame of one of the two adjacent photovoltaic devices, the second rotating member being fixed to the frame of the other photovoltaic device, the photovoltaic device being capable of being in a folded state and an unfolded state, when the photovoltaic device is in the unfolded state, two adjacent photovoltaic devices being maintained at a predetermined angle through the adapter.

2. The photovoltaic device according to claim 1, characterized in that, The first rotating member is provided with a first transfer hole, and the second rotating member is provided with a rotating shaft, the rotating shaft being movably inserted into the first transfer hole.

3. The photovoltaic device according to claim 2, wherein, The second rotating member is provided with a card slot and two accommodating grooves respectively arranged on both sides of the card slot and communicating with the card slot, the accommodating grooves being coaxially arranged with the first transfer hole, the number of the rotating shafts being two, the two rotating shafts being respectively movably arranged in the two accommodating grooves, the rotating shafts extending out of the accommodating grooves and being inserted into the first transfer hole.

4. The photovoltaic device according to claim 3, characterized in that, The adapter further includes a handle connected to the rotating shaft, the second rotating member being provided with an avoidance groove for the handle to move, the avoidance groove communicating with the accommodating groove and extending along the axial direction of the first transfer hole.

5. The photovoltaic device according to claim 4, wherein The adapter further includes an elastic member arranged in each accommodating groove, the elastic member being compressively arranged between the rotating shaft and the accommodating groove, when opposite external forces are applied to the two handles, the rotating shafts move away from each other and retract into the avoidance groove 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 approach each other and extend out of the accommodating groove.

6. The photovoltaic device according to claim 2, wherein Two adjacent photovoltaic devices are respectively a first photovoltaic device and a second photovoltaic device, the first rotating member includes a first transfer portion, a first mounting portion and a first abutting portion, both the first mounting portion and the first abutting portion are connected to the first transfer portion, the first mounting portion is fixedly connected to the frame of the first photovoltaic device, the first mounting portion is provided with the transfer hole, the first abutting portion abutting against the frame of the second photovoltaic device when the first photovoltaic device and the second photovoltaic device are unfolded; The second rotating member includes a second transfer portion, a second mounting portion and a second abutting portion, both the second mounting portion and the second abutting portion are connected to the second transfer portion, 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 abutting against the frame of the first photovoltaic device when the first photovoltaic device and the second photovoltaic device are unfolded.

7. The photovoltaic device according to claim 1, characterized in that The first rotating member and the second rotating member are connected to the long edges of the corresponding frames.

8. The photovoltaic device according to claim 1, characterized in that, The photovoltaic device includes a first junction box and a second junction box, and the first junction box and the second junction box are disposed 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.

9. The photovoltaic device according to claim 8, characterized in that, The photovoltaic panel includes a substrate, a solar cell, and a light-transmitting cover plate. The solar cell is disposed on the substrate, and the light-transmitting cover plate covers the solar cell. 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 plate. When the photovoltaic device is in a folded state, the first cylindrical portions of two adjacent photovoltaic devices abut against each other, so as to form an accommodation space for accommodating the first junction box and the second junction box between the two photovoltaic devices.

10. The photovoltaic device according to claim 9, characterized in that, The photovoltaic device further includes a second cylindrical portion, and the second cylindrical portion is disposed on one side of the substrate. The second cylindrical portion is aligned with the first cylindrical portion along the thickness direction of the photovoltaic panel.

Images