Photovoltaic device and photovoltaic system

Abstract

The utility model relates to the technical field of photovoltaic power generation, and discloses a photovoltaic device and a photovoltaic system, and the photovoltaic device comprises at least two photovoltaic modules and a connecting frame. The photovoltaic module comprises a photovoltaic module body, a first frame and a second frame, the first frame and the second frame are provided with a first clamping part and a second clamping part respectively. The connecting frame is provided with a first clamping groove and a second clamping groove, for two adjacent photovoltaic modules, the first clamping part of the first photovoltaic module is inserted into the first clamping groove of the connecting frame and is in limiting fit with the inner wall of the first clamping groove, and the second clamping part of the second photovoltaic module is inserted into the second clamping groove of the connecting frame and is in limiting fit with the inner wall of the second clamping groove. And the second clamping groove is in limiting fit with the inner wall of the second clamping groove. According to the invention, all the connecting frames are vertically installed, so that all the photovoltaic modules can be vertically arranged. The front surface of each photovoltaic assembly of the photovoltaic device can normally receive sunlight irradiation, the back surface of each photovoltaic assembly can fully receive reflected light from the environment, and the power generation efficiency of the back surface of each photovoltaic assembly is improved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic power generation technology, specifically to a photovoltaic device and photovoltaic system. Background Technology

[0002] A photovoltaic (PV) system is a power generation system that directly converts solar radiation energy into electrical energy using the photovoltaic effect. It consists of mounting brackets and multiple photovoltaic modules. A photovoltaic module, also known as a photovoltaic panel, is made up of a number of solar cells connected in series and parallel and then encapsulated. During installation, multiple photovoltaic modules are mounted horizontally or at an angle on a roof or other mounting location using brackets.

[0003] Because photovoltaic modules can only be installed horizontally or at an angle, very little light is received on their back side, resulting in low power generation efficiency on the back side of the photovoltaic module.

[0004] Therefore, how to solve or improve the problem of low power generation efficiency on the back side of photovoltaic modules in related technologies has become an important technical problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, this application provides a photovoltaic device and a photovoltaic system to solve or improve the problem of low power generation efficiency on the back side of the photovoltaic module of the photovoltaic device.

[0006] In a first aspect, this application provides a photovoltaic device, comprising:

[0007] At least two photovoltaic modules, each photovoltaic module including a photovoltaic module body, a first frame and a second frame, the first frame and the second frame being located on opposite sides connected to the photovoltaic module body, the first frame having a first latching portion and the second frame having a second latching portion;

[0008] The connecting frame is provided with a first slot and a second slot. The connecting frame is used for vertical installation, and one connecting frame is connected between every two adjacent photovoltaic modules.

[0009] In two adjacent photovoltaic modules, the first snap-fit ​​portion of the first photovoltaic module is inserted into the first slot of the connecting frame, and the first snap-fit ​​portion is limited and engaged with the inner wall of the first slot in the direction away from the second photovoltaic module. The second snap-fit ​​portion of the second photovoltaic module is inserted into the second slot of the connecting frame, and the second snap-fit ​​portion is limited and engaged with the inner wall of the second slot in the direction away from the first photovoltaic module.

[0010] Optionally, it also includes:

[0011] The base frame, and each of the connecting frames is perpendicularly connected to the base frame.

[0012] Optionally, the base frame is provided with a U-shaped groove, and the photovoltaic module further includes a third frame. The third frame is connected to the bottom of the photovoltaic module body, and the two ends of the third frame are respectively connected to the first frame and the second frame. Each base frame and the third frame are inserted into the U-shaped groove.

[0013] Optionally, the first frame includes a first frame body and a first connecting portion connected to each other, the first frame body being connected to the photovoltaic module body; the second frame includes a second frame body and a second connecting portion connected to each other, the second frame body being connected to the photovoltaic module body.

[0014] The connecting frame includes a first frame and a second frame that are perpendicular to each other. The second frame is located between a first connecting part of one photovoltaic module and a second connecting part of another photovoltaic module. The first frame abuts against the first connecting part of one photovoltaic module and the second connecting part of another photovoltaic module, respectively.

[0015] Optionally, a first stop bar and a second stop bar are respectively provided on both sides of the second frame, and both the first stop bar and the second stop bar are inclined towards the first frame;

[0016] The first stop bar, the second frame, and the first frame together form the first slot, and the first snap-fit ​​part is disposed on the first connecting part;

[0017] The second stop bar, the second frame, and the first frame together form the second slot, and the second snap-fit ​​part is disposed on the second connecting part.

[0018] Optionally, the first frame is provided with a first through hole and a second through hole, the first connecting part is provided with a third through hole, and the second connecting part is provided with a fourth through hole. The first through hole and the third through hole are coaxial, and the second through hole and the fourth through hole are coaxial.

[0019] Optionally, a third and a fourth stop bar are provided on the first side of the second frame, the third and the fourth stop bars being inclined toward each other; a fifth and a sixth stop bar are provided on the second side of the second frame, the fifth and the sixth stop bars being inclined toward each other.

[0020] The third baffle, the second frame and the fourth baffle surround to form the first slot, and the first snap-fit ​​part is disposed on the first frame body;

[0021] The fifth stop bar, the second frame, and the sixth stop bar together form the second slot, and the second snap-fit ​​part is disposed on the second frame body.

[0022] Optionally, the photovoltaic module further includes a fourth frame, which is connected to the top of the photovoltaic module body, and the two ends of the fourth frame are respectively connected to the first frame and the second frame.

[0023] Optionally, it also includes:

[0024] A support frame, one end of which is connected to a connecting frame, and the other end of which is used for a fixed connection.

[0025] Secondly, this application also provides a photovoltaic system, including any of the photovoltaic devices described above.

[0026] This application provides a photovoltaic device, including a photovoltaic module and a connecting frame. The photovoltaic module includes a photovoltaic module body, a first frame, and a second frame. A first snap-fit ​​portion is provided on the first frame, and a second snap-fit ​​portion is provided on the second frame. A first slot and a second slot are respectively provided on both sides of the connecting frame. Two adjacent photovoltaic modules are arranged side by side. The first snap-fit ​​portion on the first frame of the first photovoltaic module is engaged in the first slot of the connecting frame, and the second snap-fit ​​portion on the second frame of the second photovoltaic module is engaged in the second slot of the connecting frame, thereby connecting the two adjacent photovoltaic modules through the connecting frame. At this time, the first snap-fit ​​portion engages with the inner wall of the first slot in the direction away from the second photovoltaic module, and the second snap-fit ​​portion engages with the inner wall of the second slot in the direction away from the first photovoltaic module, thereby preventing the two adjacent photovoltaic modules from detaching from the connecting frame. Every two adjacent photovoltaic modules are connected together by the connecting frame, thereby using multiple connecting frames to sequentially connect the photovoltaic modules to form the entire photovoltaic device. By installing each connecting frame vertically, all photovoltaic modules in the photovoltaic device can be vertically arranged. In this way, each photovoltaic module in the photovoltaic system can not only receive sunlight normally on the front, but also receive more reflected light from the environment on the back, thus improving the power generation efficiency of the back of the photovoltaic module. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this application, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a photovoltaic device according to an embodiment of this application;

[0029] Figure 2 This is a side view of another photovoltaic device according to an embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the connection between adjacent photovoltaic modules in a photovoltaic device according to an embodiment of this application;

[0031] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0032] Figure 5 This is a schematic diagram of the base structure of a photovoltaic device according to an embodiment of this application;

[0033] Figure 6 This is a schematic diagram of the connection frame structure of a photovoltaic device according to an embodiment of this application;

[0034] Figure 7 This is a schematic diagram illustrating the connection between a photovoltaic device's connecting frame and two adjacent photovoltaic modules, according to an embodiment of this application.

[0035] Figure 8 This is an isometric view of a photovoltaic device connection frame according to an embodiment of this application;

[0036] Figure 9 This is a schematic diagram of the connection frame structure of another photovoltaic device according to an embodiment of this application;

[0037] Figure 10 This is a schematic diagram illustrating the connection between the connecting frame of another photovoltaic device according to an embodiment of this application and two adjacent photovoltaic modules;

[0038] Figure 11 This is a schematic diagram of the connection frame structure of another photovoltaic device according to an embodiment of this application;

[0039] Figure 12 This is a schematic diagram illustrating the connection between the connecting frame of another photovoltaic device according to an embodiment of this application and two adjacent photovoltaic modules.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Photovoltaic module; 11. Photovoltaic module body; 12. First frame; 121. First frame body; 122. First connecting part; 123. First snap-fit ​​part; 13. Second frame; 131. Second frame body; 132. Second connecting part; 133. Second snap-fit ​​part; 14. Third frame; 15. Fourth frame; 2. Connecting frame; 21. First frame; 22. Second frame; 221. First stop bar; 222. Second stop bar; 223. Third stop bar; 224. Fourth stop bar; 225. Fifth stop bar; 226. Sixth stop bar; 227. Perforation; 23. First slot; 24. Second slot; 3. Base frame; 31. U-shaped groove; 4. Support frame. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] The following is combined with Figures 1 to 12 This describes an embodiment of the present application.

[0044] According to embodiments of this application, in one aspect, a photovoltaic device is provided, such as... Figure 1 As shown, it includes a photovoltaic module 1 and a connecting frame 2, wherein at least two photovoltaic modules 1 are provided, and each pair of adjacent photovoltaic modules 1 are connected by a connecting frame 2.

[0045] For each photovoltaic module 1, the photovoltaic module 1 includes a photovoltaic module body 11, a first frame 12, and a second frame 13. The photovoltaic module 1 is formed by connecting and encapsulating a certain number of solar cells in series and parallel. The photovoltaic module body 11 has a first side and a second side arranged opposite to each other. The first frame 12 is connected to the first side of the photovoltaic module body 11, and the second frame 13 is connected to the second side of the photovoltaic module body 11. A first latching portion 123 is provided on the first frame 12, and a second latching portion 133 is provided on the second frame 13.

[0046] The connecting frame 2 has a first side and a second side, with a first slot 23 provided on the first side and a second slot 24 provided on the second side.

[0047] For connecting two adjacent photovoltaic modules 1, the two photovoltaic modules 1 are arranged side by side, with the first frame 12 of the first photovoltaic module 1 close to the second frame 13 of the second photovoltaic module 1. A connecting frame 2 is provided between the two photovoltaic modules 1, such that the first snap-fit ​​portion 123 on the first frame 12 of the first photovoltaic module 1 is engaged in the first slot 23, and the second snap-fit ​​portion 133 on the second frame 13 of the second photovoltaic module 1 is engaged in the second slot 24. Thus, the two adjacent photovoltaic modules 1 are connected by the connecting frame 2.

[0048] The width of the first latching portion 123 increases sequentially in the direction from the first photovoltaic module 1 to the second photovoltaic module 1. The width of the first slot 23 decreases sequentially in the direction from the second photovoltaic module 1 to the first photovoltaic module 1. Therefore, after the first latching portion 123 is engaged in the first slot 23, the first latching portion 123 is limited and engaged with the inner wall of the first slot 23 in the direction away from the second photovoltaic module 1, thereby preventing the first photovoltaic module 1 from detaching from the connecting frame 2.

[0049] The width of the second latching portion 133 increases sequentially in the direction of the second photovoltaic module 1 closer to the first photovoltaic module 1. The width of the second slot 24 decreases sequentially in the direction of the first photovoltaic module 1 closer to the second photovoltaic module 1. Thus, after the second latching portion 133 is engaged in the second slot 24, the second latching portion 133 is limited and engaged with the inner wall of the second slot 24 in the direction away from the first photovoltaic module 1, thereby preventing the second photovoltaic module 1 from detaching from the connecting frame 2.

[0050] The first card slot 23 and the second card slot 24 are both provided with an opening at at least one end, so as to facilitate the insertion of the first card receiving part 123 into the first card slot 23 and the insertion of the second card receiving part 133 into the second card slot 24.

[0051] Each pair of adjacent photovoltaic modules 1 is connected together by a connecting frame 2. Multiple connecting frames 2 are used sequentially to connect the photovoltaic modules 1 to form the entire photovoltaic device. By installing each connecting frame 2 vertically, all photovoltaic modules 1 in the photovoltaic device are vertically positioned. In this way, each photovoltaic module 1 not only receives sunlight normally from its front side, but also receives more reflected light from the environment from its back side, improving the power generation efficiency of the back side of the photovoltaic module 1.

[0052] The photovoltaic device described in this application can be used to replace highway fences, home fences, or yard fences. It can not only perform the traditional protective and isolation functions of fences, but also generate and store electricity to produce long-term economic benefits.

[0053] Furthermore, since both the first slot 23 and the second slot 24 have an opening at least at one end, the connecting frame 2 can be installed vertically first, with the opening ends of the first slot 23 and the second slot 24 facing upwards. Then, inserting the first latching part 123 on the first photovoltaic module 1 into the first slot 23 through the opening completes the latching connection between the first photovoltaic module 1 and the connecting frame 2; similarly, inserting the second latching part 133 on the second photovoltaic module 1 into the second slot 24 through the opening completes the latching connection between the second photovoltaic module 1 and the connecting frame 2, making the connection more convenient.

[0054] As an optional embodiment, such as Figure 2 and Figure 5 As shown, the photovoltaic device also includes a base frame 3, and each connecting frame 2 is vertically connected to the base frame 3. During installation, the base frame 3 is first installed horizontally on the ground, and then each connecting frame 2 is installed and connected to the base frame 3, so that each connecting frame 2 is vertically set to the base frame 3, thereby vertically installing each photovoltaic module 1.

[0055] In optional embodiments, such as Figure 3 and Figure 4As shown, the photovoltaic module 1 also includes a third frame 14. The first frame 12 is connected to the left side of the photovoltaic module body 11, and the second frame 13 is connected to the right side of the photovoltaic module body 11. The third frame 14 is connected to the bottom side of the photovoltaic module body 11, with its first end connected to the first frame 12 and its second end connected to the second frame 13. Thus, the first frame 12, the third frame 14, and the second frame 13 form a U-shaped structure, enhancing the stability of the photovoltaic module 1.

[0056] The base frame 3 has a U-shaped groove 31. During installation, the base frame 3 is first installed horizontally on the ground. Then, the third frame 14 of both photovoltaic modules 1 is inserted into the U-shaped groove 31 on the base frame 3, so that the outer wall of the third frame 14 abuts against the inner wall of the U-shaped groove 31. Next, the connecting frame 2 is connected between two adjacent photovoltaic modules 1, preventing them from separating. The insertion of the connecting frame 2 into the U-shaped groove 31 further enhances the stability of the photovoltaic device.

[0057] The base frame 3 can be provided with a first mounting hole, and a second mounting hole can be provided on the third frame 14 of the photovoltaic module 1. After the first mounting hole and the second mounting hole are coaxial, cable ties or bolts are passed through the first mounting hole and the second mounting hole in sequence to fix them, thereby further fixing the base frame 3 to the third frame 14 of the photovoltaic module 1.

[0058] As an optional embodiment, such as Figure 7 As shown, the first frame 12 includes a first frame body 121 and a plate-shaped first connecting portion 122, which is connected to the first frame body 121. The second frame 13 includes a second frame body 131 and a plate-shaped second connecting portion 132, which is connected to the second frame body 131.

[0059] like Figure 6 and Figure 8 As shown, the connecting frame 2 includes a first frame 21 and a second frame 22. Both the first frame 21 and the second frame 22 are plate-shaped. The second frame 22 is vertically connected to the first frame 21.

[0060] For two adjacent photovoltaic modules 1, when the first snap-fit ​​portion 123 of the first photovoltaic module 1 is snapped into the first slot 23 on the connecting frame 2 and the second snap-fit ​​portion 133 of the second photovoltaic module 1 is snapped into the second slot 24 on the connecting frame 2, the second frame body 22 of the connecting frame 2 is located between the first connecting portion 122 of the first photovoltaic module 1 and the second snap-fit ​​portion 133 of the second photovoltaic module 1. Moreover, the first frame body 21 of the connecting frame 2 has a portion of its side near the second frame body 22 abutting against the first connecting portion 122 of the first photovoltaic module 1 and another portion abutting against the second connecting portion 132 of the second photovoltaic module 1, thereby further increasing the connection stability between the two adjacent photovoltaic modules 1.

[0061] The portion of the first frame 21 located on the first side of the second frame 22 abuts against the first connection portion 122 of the first photovoltaic module 1, and the portion of the first frame 21 located on the second side of the second frame 22 abuts against the second connection portion 132 of the second photovoltaic module 1.

[0062] In an optional embodiment, the second frame 22 has a first side and a second side. For two adjacent photovoltaic modules 1, the side of the second frame 22 closer to the first photovoltaic module 1 is the first side, and the side of the second frame 22 closer to the second photovoltaic module 1 is the second side.

[0063] like Figure 6 and Figure 8 As shown, a first baffle 221 is provided on the first side of the second frame 22, thereby forming a first slot 23 by the first baffle 221, the second frame 22, and the first frame 21. The first baffle 221 is inclined towards the first frame 21, so that the width of the first slot 23 decreases sequentially in the direction of the second photovoltaic module 1 towards the first photovoltaic module 1.

[0064] The first snap-fit ​​part 123 is disposed on the first connecting part 122. When the first snap-fit ​​part 123 is snapped into the first slot 23, the first connecting part 122 of the first photovoltaic module 1 is located on the first side of the second frame 22 and abuts against the first frame 21 of the connecting frame 2.

[0065] A second stop bar 222 is provided on the second side of the second stop bar 222, thereby forming a second slot 24 by the second stop bar 222, the second frame 22, and the first frame 21. The second stop bar 222 is inclined towards the first frame 21, thereby the width of the second slot 24 decreases sequentially in the direction from the first photovoltaic module 1 to the second photovoltaic module 1.

[0066] The second snap-fit ​​part 133 is disposed on the second connecting part 132. When the second snap-fit ​​part 133 is snapped into the second slot 24, the second connecting part 132 of the second photovoltaic module 1 is located on the second side of the second frame 22 and abuts against the second frame 22 of the connecting frame 2.

[0067] In some embodiments, the first frame 21 has a first through hole and a second through hole, the first connecting part 122 has a third through hole, and the second connecting part 132 has a fourth through hole. After the first frame 21 abuts against the first connecting part 122 and the second connecting part 132 respectively, the first through hole and the third through hole are coaxial, and the second through hole and the fourth through hole are coaxial.

[0068] Cable ties or bolts can be used to secure the first frame 21 to the first connecting part 122 by passing them through the first and third holes in sequence. Alternatively, cable ties or bolts can be used to secure the first frame 21 to the second connecting part 132 by passing them through the first and fourth holes in sequence.

[0069] In the case where a base frame 3 is provided, the first mounting hole, excluding the part coaxial with the second mounting hole, can be coaxial with the first through hole and the third through hole. Cable ties or bolts can be used to pass through the first mounting hole, the first through hole and the third through hole in sequence to fix them together, thereby fixing the base frame 3, the first frame 21 and the first connecting part 122 together, further increasing stability.

[0070] Alternatively, the first mounting hole, the second through hole, and the fourth through hole on the base frame 3 (excluding the part coaxial with the second mounting hole) can be coaxial with each other. Cable ties or bolts can be used to pass through the first mounting hole, the second through hole, and the fourth through hole in sequence to fix them together, thereby fixing the base frame 3, the first frame 21, and the second connecting part 132 together and further increasing stability.

[0071] In a further embodiment, such as Figure 9 and Figure 10 As shown, the second frame 22 has through holes, which reduces the weight of the second frame 22 and lowers the cost of materials while ensuring the strength of the foundation.

[0072] In another alternative embodiment, such as Figure 11 and Figure 12 As shown, the second frame 22 has a first side and a second side. For two adjacent photovoltaic modules 1, the side of the second frame 22 closer to the first photovoltaic module 1 is the first side, and the side of the second frame 22 closer to the second photovoltaic module 1 is the second side.

[0073] A third stop bar 223 and a fourth stop bar 224 are provided on the first side of the second frame 22. The third stop bar 223, the second frame 22, and the fourth stop bar 224 together form a first slot 23. Both the third stop bar 223 and the fourth stop bar 224 are inclined, and each is inclined in a direction closer to the other. Therefore, the width of the first slot 23 decreases sequentially in the direction from which the second photovoltaic module 1 approaches the first photovoltaic module 1.

[0074] A fifth stop bar 225 and a sixth stop bar 226 are inclinedly arranged on the first side of the second frame 22. The fifth stop bar 225, the second frame 22, and the sixth stop bar 226 together form a second slot 24. Both the fifth stop bar 225 and the sixth stop bar 226 are inclined, and each is inclined in a direction closer to the other. Therefore, the width of the second slot 24 decreases sequentially in the direction from the first photovoltaic module 1 to the second photovoltaic module 1.

[0075] As an optional embodiment, such as Figure 3 As shown, the photovoltaic module 1 also includes a fourth frame 15. The first frame 12 is connected to the left side of the photovoltaic module body 11, and the second frame 13 is connected to the right side of the photovoltaic module body 11. The fourth frame 15 is connected to the top side of the photovoltaic module body 11, with its first end connected to the first frame 12 and its second end connected to the second frame 13. Thus, the first frame 12, the fourth frame 15, and the second frame 13 form a U-shaped structure, enhancing the stability of the photovoltaic module 1.

[0076] In a further embodiment, the photovoltaic module 1 includes a first frame 12, a second frame 13, a third frame 14, and a fourth frame 15. The first frame 12 is connected to the left side of the photovoltaic module body 11, the second frame 13 is connected to the right side of the photovoltaic module body 11, the third frame 14 is connected to the bottom side of the photovoltaic module body 11, and the fourth frame 15 is connected to the top side of the photovoltaic module body 11.

[0077] The first end of the third frame 14 is connected to the bottom end of the first frame 12, the second end of the third frame 14 is connected to the bottom end of the second frame 13, the first end of the fourth frame 15 is connected to the top end of the first frame 12, and the second end of the fourth frame 15 is connected to the top end of the second frame 13. Thus, the first frame 12, the second frame 13, the third frame 14, and the fourth frame 15 form a square structure, enhancing the stability of the photovoltaic module 1.

[0078] As an optional embodiment, such as Figure 2 As shown, the photovoltaic device includes a support frame 4, one end of which can be connected to the connecting frame 2, and the other end of the support frame 4 is fixedly connected to the ground, thereby further reinforcing the connecting frame 2 and increasing the overall stability.

[0079] Multiple support frames 4 can be set, and each support frame 4 is connected to a connecting frame 2 in a one-to-one correspondence, with each support frame 4 supporting one connecting frame 2.

[0080] According to an embodiment of this application, another aspect provides a photovoltaic system including any of the photovoltaic devices described above. The technical effects of this photovoltaic system are the same as those of the photovoltaic devices, and therefore will not be described in detail here.

[0081] Photovoltaic systems can include photovoltaic power stations, photovoltaic device arrays, etc.

[0082] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A photovoltaic device, characterized in that, include: At least two photovoltaic modules (1), each photovoltaic module (1) includes a photovoltaic module body (11), a first frame (12) and a second frame (13), the first frame (12) and the second frame (13) are respectively located on opposite sides connected to the photovoltaic module body (11), the first frame (12) is provided with a first snap-fit ​​portion (123) and the second frame (13) is provided with a second snap-fit ​​portion (133); The connecting frame (2) is provided with a first slot (23) and a second slot (24). The connecting frame (2) is used for vertical installation, and one connecting frame (2) is connected between every two adjacent photovoltaic modules (1). In two adjacent photovoltaic modules (1), the first snap-fit ​​portion (123) of the first photovoltaic module (1) is inserted into the first slot (23) of the connecting frame (2), and the first snap-fit ​​portion (123) is limited and engaged with the inner wall of the first slot (23) in the direction away from the second photovoltaic module (1). The second snap-fit ​​portion (133) of the second photovoltaic module (1) is inserted into the second slot (24) of the connecting frame (2), and the second snap-fit ​​portion (133) is limited and engaged with the inner wall of the second slot (24) in the direction away from the first photovoltaic module (1).

2. The photovoltaic device according to claim 1, characterized in that, Also includes: The base frame (3) and each of the connecting frames (2) are vertically connected to the base frame (3).

3. The photovoltaic device according to claim 2, characterized in that, The base frame (3) is provided with a U-shaped groove (31), and the photovoltaic module (1) also includes a third frame (14). The third frame (14) is connected to the bottom of the photovoltaic module body (11). The two ends of the third frame (14) are respectively connected to the first frame (12) and the second frame (13). Each base frame (3) and the third frame (14) are inserted into the U-shaped groove (31).

4. The photovoltaic device according to any one of claims 1-3, characterized in that, The first frame (12) includes a first frame body (121) and a first connecting part (122) connected to each other. The first frame body (121) is connected to the photovoltaic module body (11). The second frame (13) includes a second frame body (131) and a second connecting part (132) connected to each other. The second frame body (131) is connected to the photovoltaic module body (11). The connecting frame (2) includes a first frame (21) and a second frame (22) that are perpendicular to each other. The second frame (22) is located between a first connecting part (122) of one photovoltaic module (1) and a second connecting part (132) of another photovoltaic module (1). The first frame (21) abuts against the first connecting part (122) of one photovoltaic module (1) and the second connecting part (132) of another photovoltaic module (1).

5. The photovoltaic device according to claim 4, characterized in that, The second frame (22) is provided with a first baffle (221) and a second baffle (222) on both sides respectively. The first baffle (221) and the second baffle (222) are both inclined towards the first frame (21). The first stop bar (221), the second frame (22) and the first frame (21) surround to form the first slot (23), and the first snap-fit ​​part (123) is disposed on the first connecting part (122); The second stop bar (222), the second frame (22) and the first frame (21) surround to form the second slot (24), and the second snap-fit ​​part (133) is disposed on the second connecting part (132).

6. The photovoltaic device according to claim 4, characterized in that, The first frame (21) is provided with a first through hole and a second through hole, the first connecting part (122) is provided with a third through hole, and the second connecting part (132) is provided with a fourth through hole. The first through hole and the third through hole are coaxial, and the second through hole and the fourth through hole are coaxial.

7. The photovoltaic device according to claim 4, characterized in that, The second frame (22) is provided with a third stop bar (223) and a fourth stop bar (224) on its first side. The third stop bar (223) and the fourth stop bar (224) are inclined towards each other. The second frame (22) is provided with a fifth stop bar (225) and a sixth stop bar (226) on its second side. The fifth stop bar (225) and the sixth stop bar (226) are inclined towards each other. The third baffle (223), the second frame (22) and the fourth baffle (224) surround to form the first slot (23), and the first snap-fit ​​part (123) is disposed on the first frame body (121); The fifth stop bar (225), the second frame (22) and the sixth stop bar (226) surround to form the second slot (24), and the second snap-fit ​​part (133) is disposed on the second frame body (131).

8. The photovoltaic device according to claim 1, characterized in that, The photovoltaic module (1) also includes a fourth frame (15), which is connected to the top of the photovoltaic module body (11), and the two ends of the fourth frame (15) are connected to the first frame (12) and the second frame (13) respectively.

9. The photovoltaic device according to claim 2, characterized in that, Also includes: Support frame (4), one end of which is connected to the connecting frame (2), and the other end is used for fixed connection.

10. A photovoltaic system, characterized in that, include: The photovoltaic device according to any one of claims 1-9.

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