Photovoltaic device and photovoltaic equipment

Abstract

The utility model discloses a photovoltaic device and photovoltaic equipment. The photovoltaic device comprises a photovoltaic panel, a junction box and a first protruding part, the photovoltaic panel comprises a back plate, a battery piece and a light-transmitting cover plate, the battery piece is arranged on the back plate, and the light-transmitting cover plate covers the battery piece; the junction box is arranged on the back plate; the first protruding part is arranged on one side of the back plate, and the first protruding part is used for enabling an accommodating space for accommodating the junction box to be formed between the two photovoltaic devices when the two photovoltaic devices are stacked. Therefore, the junction box is arranged on the back plate, so that the light receiving area of the photovoltaic panel is not influenced in the use process of the photovoltaic devices, the photoelectric conversion efficiency of the photovoltaic devices is improved, in addition, a containing space for containing the junction box is formed between the two photovoltaic devices through the first protruding parts, interference between the junction box and other photovoltaic devices can be reduced, and the photovoltaic devices can be protected from being damaged. And the service life of the photovoltaic device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic equipment, and more specifically, to a photovoltaic device and a photovoltaic equipment. Background Art

[0002] A photovoltaic panel is a device that converts solar energy into light energy. In order to increase the power generation and make the photovoltaic panel easy to carry, it is often necessary to electrically connect multiple photovoltaic panels. Generally, a junction box is provided on the photovoltaic panel to electrically connect two adjacent photovoltaic panels. However, the junction box is prone to interference with the photovoltaic panel when multiple photovoltaic panels are stored. Summary of the Utility Model

[0003] Embodiments of the utility model provide a photovoltaic device and a photovoltaic equipment.

[0004] A photovoltaic device includes:

[0005] A photovoltaic panel, which includes a backplane, a battery cell, and a light-transmitting cover plate. The battery cell is disposed on the backplane, and the light-transmitting cover plate covers the battery cell;

[0006] A junction box, which is disposed on the backplane; and

[0007] A first convex portion, which is disposed on one side of the backplane. The first convex portion is used to form a receiving space for accommodating the junction box between two photovoltaic devices when the two photovoltaic devices are stacked

[0008] In this way, the junction box is disposed on the backplane, so that the photovoltaic device does not affect the light-receiving area of the photovoltaic panel during use, improving the photoelectric conversion efficiency of the photovoltaic device. In addition, the first convex portion forms a receiving space for accommodating the junction box between two photovoltaic devices, which can reduce the interference between the junction box and other photovoltaic devices and improve the service life of the photovoltaic device.

[0009] In some embodiments, the junction box includes a first junction box and a second junction box, and the first junction box and the second junction box are respectively disposed on two sides in the width direction of the photovoltaic panel.

[0010] In some embodiments, the first junction box and the second junction box are spaced apart along the length direction of the photovoltaic panel.

[0011] In some embodiments, the first junction box is connected with a cable, the second junction box is provided with a socket, and the connector at one end of the cable is adapted to be inserted into the socket.

[0012] In some embodiments, the second junction box includes a box body, a box cover and a wiring base. An accommodation space is provided inside the box body. An insertion interface communicating with the accommodation space is provided at an end of the box body. An opening spaced from the insertion interface and communicating with the accommodation space is provided at the top of the box body. The box cover seals the opening. The wiring base is disposed in the accommodation space and partially located between the opening and the insertion interface.

[0013] In some embodiments, limiting ribs are provided on the inner wall of the accommodation space, and limiting grooves are provided on the wiring base. The limiting ribs are snap-fitted in the limiting grooves to limit the normal movement of the wiring base along the insertion interface.

[0014] In some embodiments, the photovoltaic device further includes a frame that wraps the edge of the photovoltaic panel, and the first protruding portion is provided on the frame.

[0015] In some embodiments, the first protruding portion is provided at a corner portion of the frame.

[0016] In some embodiments, the photovoltaic device further includes a second protruding portion provided on one side of the light-transmitting cover plate, and the second protruding portion is aligned with the first protruding portion along the thickness direction of the photovoltaic panel.

[0017] A photovoltaic device includes the above-described photovoltaic device. Two adjacent photovoltaic devices are electrically connected through the junction box, and the first protruding portions of two adjacent photovoltaic devices are in contact with each other.

[0018] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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:

[0020] Figure 1 is a three-dimensional schematic diagram of the photovoltaic device according to the embodiment of the present utility model in a folded state;

[0021] Figure 2 is a three-dimensional schematic diagram of the photovoltaic device according to the embodiment of the present utility model in an unfolded state;

[0022] Figure 3 is another three-dimensional schematic diagram of the photovoltaic device according to the embodiment of the present utility model in an unfolded state and showing the light-receiving surface;

[0023] Figure 4 is Figure 3The photovoltaic device shows another schematic view of the backlight surface;

[0024] Figure 5 It is a partially enlarged schematic view of the photovoltaic device according to the embodiment of the present invention in a folded state;

[0025] Figure 6 It is a three-dimensional schematic view of the photovoltaic device according to the embodiment of the present invention showing the light-receiving surface;

[0026] Figure 7 It is a three-dimensional schematic view of the photovoltaic device according to the embodiment of the present invention showing another angle of the backlight surface;

[0027] Figure 8 It is a three-dimensional schematic view of the first junction box of the photovoltaic device according to the embodiment of the present invention;

[0028] Figure 9 It is an exploded schematic view of the first junction box of the photovoltaic device according to the embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1000 - Photovoltaic device; 100 - Photovoltaic device; 110 - Accommodating space; 10 - Photovoltaic panel; 11 - Back plate; 12 - Battery cell; 13 - Transparent cover plate; 20 - Frame; 25 - Mounting hole; 30 - Junction box; 31 - First junction box; 32 - Second junction box; 321 - Box body; 3211 - Storage space; 3212 - Plug interface; 3213 - Opening; 3214 - Limit rib; 322 - Box cover; 323 - Wiring seat; 3231 - Limit groove; 33 - Cable; 40 - First protrusion; 50 - Second protrusion; 200 - Adapter. Detailed description of the specific implementation

[0031] The following details the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0032] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0033] 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. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the 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 can be aware of the application of other processes and / or the use of other materials.

[0034] 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 plate-shaped, and the photovoltaic device 100 has a long edge and a short edge substantially perpendicular to the long edge.

[0035] 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 for abutting 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 are 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 this photovoltaic device 1000 and facilitates the use of the photovoltaic device 1000.

[0036] 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, asFigure 3 As shown. When the photovoltaic device 1000 is in the deployed 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 deployed state, two adjacent photovoltaic devices 100 are held at a predetermined angle by the adapter 200. In this way, the photovoltaic device 1000 is convenient for storage and transportation when folded. When the photovoltaic device 1000 is in the deployed state, the angle between two adjacent photovoltaic devices 100 is defined as 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.

[0037] 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 is deployed is relatively large, which is beneficial to the photovoltaic device 1000 to convert solar energy into electric energy.

[0038] 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°.

[0039] The adjacent photovoltaic devices 10 are inclined with respect to the bearing surface. On the one hand, the floor area of the photovoltaic device 1000 can be saved without reducing the power generation efficiency; on the other hand, when there are obstacles such as leaves on the photovoltaic device 10, the obstacles such as leaves can slide off the surface of the photovoltaic device 10, avoiding the reduction of power generation efficiency caused by partial occlusion of the photovoltaic device 10.

[0040] Please refer to Figures 6 - 7 , in some embodiments, the photovoltaic device 10 may include a photovoltaic panel 10, a frame 20, a junction box 30, a first protrusion 40, and a second protrusion 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 in other words, the edge of the photovoltaic panel 10 is embedded in the frame 20.

[0041] 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. Two adjacent photovoltaic devices 100 are electrically connected through the first junction box 31 and the second junction box 32.

[0042] The first protruding portion 40 protrudes from the backlight surface of the photovoltaic panel 10. For example, the first protruding portion 40 can be provided on the frame 20. The first protruding portion 40 is used to form a receiving space 110 for accommodating the junction box 30 between two photovoltaic devices 100 when the two photovoltaic devices 100 are stacked, so that the junction box 30 is not easily interfered with by other adjacent photovoltaic panels 10, which is beneficial to the stacking of multiple photovoltaic devices 100 to form an integral body.

[0043] The second protruding portion 50 protrudes from the light-receiving surface of the photovoltaic panel 10. The second protruding portion 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 the two photovoltaic panels 10 scratching each other and reducing the service life of the photovoltaic device 100.

[0044] Please refer to Figure 6 and Figure 7 In one embodiment, the photovoltaic panel 10 may include a backplane 11, solar cells 12, and a light-transmitting cover plate 13. The solar cells 12 are disposed on the backplane 11, and the light-transmitting cover plate 13 covers the solar cells 12. Specifically, the backplane 11 can be made of materials such as PET, CPC, fiberglass board, glass, etc. The backplane 11 can be a sheet material such as a rectangle or a rounded rectangle. The solar cells 12 can be fixed to the backplane 11 by means of adhesion. The solar cells 12 are used to convert light energy into solar energy. The number of solar cells 12 can 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 backplane 11. The column arrangement direction of the solar cells 12 is the same as the width direction of the backplane 11. The first junction box 31 and the second junction box 32 can both be disposed on the backplane 11.

[0045] The light-transmitting cover plate 13 can be made of materials such as PET, CPC, glass, etc. The light-transmitting cover plate 13 can have the same shape and size as the backplane 11. The light-transmitting cover plate 13 can be bonded to the backplane 11 or the solar cells 12 by means of adhesion.

[0046] Thus, as Figure 4 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 spaced apart along the length direction of the photovoltaic panel 10, so that the angle at which the cable 33 bends between the first junction box 31 on one photovoltaic device 100 and the second junction box 32 on another photovoltaic device 100 is smaller, which is beneficial to the electrical connection between two adjacent photovoltaic devices 100 through the first junction box 31 and the second junction box 32.

[0047] Please refer to Figure 2 and Figure 7, in some embodiments, the frame 20 is provided with mounting holes 25 penetrating through the frame 20 in the thickness direction of the photovoltaic panel 10. The mounting holes 25 are used for the plug pins 300 to pass through so that the plug pins 300 are inserted under the bearing surface. In this way, the mounting holes 25 can make the photovoltaic device 100 installed stably, keep the position of the photovoltaic device 100 stable, and is beneficial to improving the power generation efficiency of the photovoltaic device 100. Specifically, after the photovoltaic device 1000 is unfolded, the plug pins 300 can be used to pass through the mounting holes 25 and be inserted under the bearing surface, so as to keep the position of the photovoltaic device 1000 stable.

[0048] In some embodiments, the mounting holes 25 are arranged at the corner parts of the frame 20. In this way, the mounting holes 25 are located at the edge parts of the frame 20, which can improve the wind resistance of the photovoltaic device 100 and further improve the stability after installation.

[0049] As mentioned above, on the same photovoltaic device 100, the junction box 30 may include a first junction box 31 and a second junction box 32. Please refer to again Figures 5 - 7 , in one embodiment, the first junction box 31 is connected with a cable 33, the second junction box 32 is provided with a jack 321, and the connector at one end of the cable 33 is adapted to be inserted into the jack 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 a jack 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 jack 321 of the second junction box 32 of the other photovoltaic device 100. For this reason, 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 beneficial to electrically connecting the two photovoltaic devices 100.

[0050] Specifically, please refer to Figures 8 - 9 , in one embodiment, the second junction box 32 includes a box body 321, a box cover 322 and a wiring base 323. The interior of the box body 321 is provided with a storage space 3211. The end of the box body 321 is provided with a jack 3212 communicating with the storage space 3211. The top of the box body 321 is provided with an opening 3213 spaced from the jack 3212 and communicating with the storage space 3211. The box cover 322 covers the opening 3213. The wiring base 323 is arranged in the storage space 3211 and partially located between the opening 3213 and the jack 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 jack 3212 of the second junction box 32 of the other photovoltaic device 100 and is plugged with the wiring base 323.

[0051] Thus, an opening 3213 is provided at the top of the box body 321, which is spaced from the insertion interface 3212 and communicates with the storage space 3211. The wiring base 323 is arranged in the storage space 3211 and partially located between the opening 3213 and the insertion interface 3212. This not only makes it easy to install the wiring base 323 into the storage space 3211, but also enables the circumferential surface of the storage space 3211 near the insertion interface 3212 to be a closed-loop surface, which is beneficial to improving the waterproof performance of the joint between the wiring base 323 and the cable.

[0052] Please refer to Figures 8 - 9 , in some embodiments, a limiting rib 3214 is provided on the inner wall of the storage space 3211, and a limiting groove 3231 is provided on the wiring base 323. The limiting rib 3214 is snapped into the limiting groove 3231 to limit the normal movement of the wiring base 323 along the insertion interface 3212. In this way, the joint of the cable 33 and the wiring base 323 can be accurately plugged together, improving the connection stability between the joint of the cable 33 and the wiring base 323. The normal direction of the insertion interface 3212 is the insertion direction of the joint of the cable.

[0053] In some embodiments, when multiple photovoltaic devices 100 are disassembled, the joint of the cable 33 can be plugged into an external device. That is to say, when a single photovoltaic device 100 is used alone, the photovoltaic device 100 can output electrical energy through the cable 33, thus facilitating the use of a single photovoltaic device 100.

[0054] Please refer to Figures 5 - 7 , in some embodiments, the first protrusion 40 is provided on one side of the back plate 11. Since the junction box 30 is arranged on the back plate 11, setting the first protrusion 40 on one side of the back plate 11 can form a receiving space 110 for accommodating junction boxes 30 such as the first junction box 31 and the second junction box 32 between two photovoltaic devices 100 when the two photovoltaic devices 100 are stacked. The first protrusions 40 of two adjacent photovoltaic devices 100 abut against each other.

[0055] Specifically, the first protrusion 40 can be arranged on the frame 20, which makes it easier to install the first protrusion 40. Further, the first protrusion 40 is arranged at the corner part of the frame 20.

[0056] In some embodiments, the number of the first protrusions 40 is multiple, and the multiple first protrusions 40 are arranged at intervals along the circumferential direction of the photovoltaic panel 10. In this way, the multiple first protrusions 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.

[0057] Please refer to Figures 5 - 7, in some embodiments, the first protrusion 40 is a magnetic member. In this way, two adjacent photovoltaic devices 100 can be attracted to each other through the first protrusion 40, which is beneficial to keeping the positions of the photovoltaic devices 100 stable.

[0058] Please refer to Figures 5 - 7 , in some embodiments, the second protrusion 50 is disposed on one side of the light-transmitting cover plate 13, and the second protrusion 50 is aligned with the first protrusion 40 along the thickness direction of the photovoltaic panel 10. For example, the first protrusion 40 and the second protrusion 50 are respectively disposed on both sides of the frame 20 along the thickness direction of the photovoltaic panel 10. The second protrusion 50 can provide support for two adjacent photovoltaic devices 100, so that after the photovoltaic device 1000 is in a folded state, the states of two adjacent photovoltaic devices 100 are more stable.

[0059] As Figure 6 shown, in some embodiments, the second protrusion 50 is disposed on the frame 20. The second protrusion 50 can also be a magnetic member. In this way, two adjacent photovoltaic devices 100 can be attracted to each other through the second protrusion 50, which is beneficial to keeping the positions of the photovoltaic devices 100 stable.

[0060] As Figure 6 and Figure 7 shown, in some embodiments, the mounting hole 25 penetrates through the first protrusion 40 and the second protrusion 50. This makes the cooperation among the first protrusion 40, the second protrusion 50 and the mounting hole 25 more compact.

[0061] 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 an installation position for the adapter 200, so that two adjacent photovoltaic devices 100 can be rotatably connected through the adapter 200.

[0062] In summary, in one embodiment, the photovoltaic device 100 includes a photovoltaic panel 10, a junction box 30 and a first protrusion 40. The photovoltaic panel 10 includes a back plate 11, solar cells 12 and a light-transmitting cover plate 13. The solar cells 12 are disposed on the back plate 11, and the light-transmitting cover plate 13 covers the solar cells 12; the junction box 30 is disposed on the back plate 11; the first protrusion 40 is disposed on one side of the back plate 11, and the first protrusion 40 is used to form an accommodation space for accommodating the junction box 30 between two photovoltaic devices 100 when the two photovoltaic devices 100 are stacked.

[0063] Thus, the junction box 30 is disposed on the back plate 11 so that the light-receiving area of the photovoltaic panel 10 is not affected during the use of the photovoltaic device 100, improving the photoelectric conversion efficiency of the photovoltaic device 100. In addition, the first protrusion 40 forms an accommodation 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.

[0064] In the description of the embodiments of the present invention, 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 described features. In the description of the embodiments of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0065] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", 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 invention. In this specification, the schematic representations of the above terms do 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.

[0066] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A photovoltaic device, characterized in that: include: A photovoltaic panel, the photovoltaic panel comprising a back plate, a battery cell and a light-transmitting cover plate, the battery cell is arranged on the back plate, and the light-transmitting cover plate covers the battery cell; A junction box, the junction box being arranged on the back plate; and A first protrusion, wherein the first protrusion is arranged on one side of the back plate, and the first protrusion is used to form an accommodating space for accommodating the junction box between the two photovoltaic devices when the two photovoltaic devices are stacked.

2. The photovoltaic device according to claim 1, characterized in that: The junction box includes a first junction box and a second junction box, and the first junction box and the second junction box are respectively arranged on both sides of the photovoltaic panel in a width direction.

3. The photovoltaic device according to claim 2, characterized in that: The first junction box and the second junction box are arranged at intervals along the length direction of the photovoltaic panel.

4. The photovoltaic device according to claim 2, characterized in that: The first junction box is connected to a cable, and the second junction box is provided with a plug interface, and a connector at one end of the cable is suitable for being plugged into the plug interface.

5. The photovoltaic device according to claim 4, characterized in that: The second junction box includes a box body, a box cover and a wiring seat, wherein a storage space is provided inside the box body, an end of the box body is provided with the plug interface connected to the storage space, an opening is provided on the top of the box body which is spaced apart from the plug interface and connected to the storage space, the box cover covers the opening, and the wiring seat is arranged in the storage space and is partially located between the opening and the plug interface.

6. The photovoltaic device according to claim 5, characterized in that: The inner wall of the storage space is provided with a limiting rib, the wiring seat is provided with a limiting groove, and the limiting rib is clamped in the limiting groove to limit the normal movement of the wiring seat along the plug interface.

7. The photovoltaic device according to claim 1, characterized in that: The photovoltaic device further includes a frame, which wraps around the edge of the photovoltaic panel, and the first protrusion is arranged on the frame.

8. The photovoltaic device according to claim 7, characterized in that: The first protrusion is arranged at a corner of the frame.

9. The photovoltaic device according to claim 1, characterized in that: The photovoltaic device further includes a second protrusion, which is disposed on one side of the light-transmitting cover plate, and the second protrusion is aligned with the first protrusion along the thickness direction of the photovoltaic panel.

10. A photovoltaic device, characterized in that: The photovoltaic device comprises a plurality of photovoltaic devices according to any one of claims 1 to 9, wherein two adjacent photovoltaic devices are electrically connected via the junction box, and the first protrusions of two adjacent photovoltaic devices abut against each other.

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