Photovoltaic module and photovoltaic power station

Abstract

The utility model discloses a photovoltaic assembly and a photovoltaic power station, and relates to the technical field of photovoltaic assemblies. The photovoltaic module comprises a photovoltaic laminated piece, a first sealing piece and a module frame, the assembly frame comprises a frame body and a containing cavity defined by the frame body. The edge area of the photovoltaic laminated piece is placed in the accommodating cavity; a water outlet is formed in the side surface, corresponding to the accommodating cavity, of the frame; the top surface area, corresponding to the water outlet, on the frame and the light receiving surface of the photovoltaic laminated piece form a water guide groove, and the water guide groove is communicated with the water outlet; the first sealing piece is arranged in the accommodating cavity and is positioned between the inner side wall of the frame and the edge area of the photovoltaic laminated piece; the first sealing piece is provided with a hollowed-out part, and the hollowed-out part corresponds to the water outlet and the water guide groove. According to the embodiment, dust and moisture on the surface of the photovoltaic module can be rapidly removed, and the preparation time of the photovoltaic module is effectively shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic module technical field especially relates to a photovoltaic module and photovoltaic power station. BACKGROUND

[0002] The photovoltaic module is easy to accumulate water and dust on the surface during outdoor work. If the water and dust cannot be quickly and effectively removed, not only the photovoltaic module power generation area is shielded, the performance of the photovoltaic module is reduced, but also the hot spot effect of the photovoltaic module can be caused, thereby causing the safe hidden danger of the operation of the photovoltaic module.

[0003] Therefore, how to solve the water and dust accumulation on the surface of the photovoltaic module has become a problem to be solved at present. UTILITY MODEL CONTENT

[0004] Therefore, the utility model embodiment provides a photovoltaic module and photovoltaic power station, which can quickly remove the dust and moisture on the surface of the photovoltaic module, and effectively shorten the preparation time of the photovoltaic module.

[0005] To achieve the above purpose, according to an aspect of the utility model embodiment, a photovoltaic module is provided. The photovoltaic module comprises a photovoltaic laminate, a first sealing member and a module frame, wherein,

[0006] The module frame comprises a frame and a containing cavity surrounded by the frame;

[0007] The edge region of the photovoltaic laminate is placed in the containing cavity;

[0008] A drainage port is arranged on the side surface of the frame corresponding to the containing cavity;

[0009] The top surface region of the frame corresponding to the drainage port forms a water guide groove with the light receiving surface of the photovoltaic laminate, and the water guide groove and the drainage port are in communication;

[0010] The first sealing member is arranged in the containing cavity and located between the inner side wall of the frame and the edge region of the photovoltaic laminate;

[0011] The first sealing member is provided with a hollow part, and the hollow part is arranged corresponding to the drainage port and the water guide groove.

[0012] Optionally, the number of the frames is multiple; wherein,

[0013] One or more of the frames are provided with the drainage port.

[0014] Optionally, a plurality of drainage ports are arranged on the same frame at intervals.

[0015] Optionally, the first sealing member comprises a first sealing portion and a second sealing portion arranged alternately, wherein,

[0016] The second sealing portion is provided with the hollow portion, and the second sealing portion corresponds to the drain port and is located between the lower edge region of the photovoltaic laminate and the bottom surface of the accommodating cavity.

[0017] The first sealing portion wraps the upper edge region, the lower edge region and the side surface of the photovoltaic laminate.

[0018] Optionally, the first sealing portion and the second sealing portion are integrated.

[0019] Optionally, the frame comprises a first limiting portion, a first side baffle and a first supporting portion.

[0020] The first limiting portion, the first side baffle and the first supporting portion surround the accommodating cavity.

[0021] Optionally, the frame further comprises a first supporting bottom plate and a first inner wall plate.

[0022] The first supporting portion, the first side baffle, the first supporting bottom plate and the first inner wall plate surround to form an angle code cavity.

[0023] Optionally, the first sealing member comprises a substrate layer and a first adhesive layer stacked, and the first adhesive layer is bonded to the photovoltaic laminate.

[0024] Or,

[0025] The first sealing member comprises a first adhesive layer, a substrate layer and a second adhesive layer stacked, and the first adhesive layer or the second adhesive layer is bonded to the photovoltaic laminate.

[0026] Optionally, for the frame without the drain port,

[0027] The photovoltaic module further comprises a second sealing member matched with the inner side wall of the accommodating cavity on the frame without the drain port.

[0028] To achieve the above object, according to another aspect of the embodiment of the present application, a photovoltaic power station is provided. The photovoltaic power station of the embodiment of the present application comprises the photovoltaic module as any one of the above.

[0029] Optionally, the height of the horizontal plane where the frame with the drain port is located is lower than the height of the horizontal plane where the frame without the drain port is located.

[0030] The embodiment of the utility model has the following advantages or beneficial effects: the frame provided with the water outlet and the first sealing element are matched, dust and moisture on the surface of the photovoltaic module can be quickly removed through the water outlet and the water guide groove, self-cleaning of the photovoltaic module is realized, meanwhile, the operation of discontinuous glue application in the frame provided with the water outlet is avoided, the preparation process is simplified, the problem that the preparation time of the photovoltaic module is greatly increased due to discontinuous glue application is solved, the preparation time of the photovoltaic module is effectively shortened, the time cost of the photovoltaic module preparation is reduced, it is economic and applicable, and it is suitable for large-area popularization and application.

[0031] The further effects of the above-mentioned non-conventional optional mode will be described in the following in combination with the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings are used to better understand the utility model, and do not constitute improper limitation on the utility model. Among them:

[0033] Figure 1 It is an explosion schematic view of the photovoltaic module according to the embodiment of the utility model;

[0034] Figure 2 It is a structure schematic view of the first surface of the frame provided with the water outlet according to the embodiment of the utility model;

[0035] Figure 3 It is a structure view of the second surface of the frame provided with the water outlet according to the embodiment of the utility model;

[0036] Figure 4 It is a longitudinal section structure schematic view of the first frame part and the second sealing part according to the embodiment of the utility model;

[0037] Figure 5 It is a longitudinal section structure schematic view of the second frame part and the first sealing part according to the embodiment of the utility model;

[0038] Figure 6 It is a structure schematic view of the first sealing element installed in the accommodating cavity of the frame provided with the water outlet according to the embodiment of the utility model;

[0039] Figure 7 It is a structure schematic view of the first sealing element according to the embodiment of the utility model;

[0040] Figure 8 It is a structure schematic view of the longitudinal section of the photovoltaic module at the position of the first frame part according to the embodiment of the utility model;

[0041] Figure 9 It is a structure schematic view of the longitudinal section of the photovoltaic module at the position of the second frame part according to the embodiment of the utility model;

[0042] Figure 10 is a structure schematic view of a longitudinal section of a photovoltaic module at a position of a first frame part during drainage according to an embodiment of the present utility model;

[0043] Figure 11 is a structure schematic view of a longitudinal section of a frame without a drainage opening according to an embodiment of the present utility model;

[0044] Figure 12 is a structure schematic view of a longitudinal section of a photovoltaic module at a position of a frame without a drainage opening according to an embodiment of the present utility model;

[0045] Figure 13 is a structure schematic view of a frame with a corner bracket according to an embodiment of the present utility model.

[0046] Reference signs:

[0047] 10-photovoltaic laminate; 20-first sealing member; 21-first sealing part; 22-second sealing part; 23-hollowed part; 30-module frame; 31-frame provided with a drainage opening; 31a-first frame part; 31b-second frame part; 311-drainage opening; 312-water guide groove; 313-first limiting part; 314-first side baffle; 315-first support part; 316-first support bottom plate; 317-first inner wall plate; 32-frame without a drainage opening; 321-second limiting part; 322-second side baffle; 323-second support part; 324-second support bottom plate; 325-second inner wall plate; 326-third limiting part; 327-excess glue groove; 33-accommodation cavity; 34-corner bracket cavity; 40-second sealing member; 50-corner bracket. DETAILED DESCRIPTION

[0048] Exemplary embodiments of the present utility model are described herein below, with reference to the accompanying drawings, which include various details of the present utility model embodiments to facilitate an understanding. They should be considered in a descriptive sense only and not limiting. Therefore, it should be recognized that various modifications and changes can be made to the embodiments described herein without departing from the scope and spirit of the present utility model. Also, for the purpose of clarity and a concise description, descriptions of well-known functions and constructions are omitted from the following description.

[0049] It should be noted that the embodiments of the present utility model and the technical features in the embodiments can be combined with each other without conflict.

[0050] As shown in Figure 1 , the photovoltaic module according to an embodiment of the present utility model mainly comprises: a photovoltaic laminate 10, a first sealing member 20 and a module frame 30.

[0051] The photovoltaic laminate 10 comprises, from top to bottom, a cover plate, a front adhesive film, a solar cell array, a rear adhesive film and a back plate.

[0052] Optionally, the cover plate can be made of tempered glass or semi-tempered glass; the front adhesive film and the rear adhesive film can be EVA adhesive film, POE adhesive film, a laminated film composed of EVA and POE, a laminated film composed of EVA and POE and EVA, or a laminated film composed of POE and EVA and POE; the back plate can be made of glass, or made of a multi-layer laminated structure material including at least an insulating functional layer and a weather-resistant functional layer, wherein the insulating functional layer can be a multi-layer film structure of polyethylene terephthalate (PET), modified polyethylene terephthalate, or containing polyethylene terephthalate (PET), and the weather-resistant functional layer can be a polyvinyl fluoride (PVF) film layer, a polyvinylidene fluoride (PVDF) film layer, or an ethylene-tetra-fluoro-ethylene (ETFE) film layer.

[0053] The assembly frame 30 includes a frame and a receiving cavity 33 surrounded by the frame. The edge area of the photovoltaic laminate 10 is placed in the receiving cavity 33.

[0054] The number of frames can be multiple. Optionally, as shown in Figure 1 , the number of frames can be four, including a set of long frames and a set of short frames, respectively used to accommodate the long edge area and the short edge area of the photovoltaic laminate 10.

[0055] As shown in Figure 2 , a drainage port 311 is provided on the side of the frame corresponding to the receiving cavity 33, i.e. on the B face of the frame. One or more frames are provided with the drainage port 311. As an example, the drainage port 311 is provided on all four frames, or only on the set of short frames, or only on one short frame.

[0056] In addition, the number of drainage ports 311 on the same frame 31 provided with the drainage port can be one or multiple. As shown in Figure 2 and Figure 3 , when the number of drainage ports 311 is multiple, the multiple drainage ports 311 are arranged on the side of the frame corresponding to the receiving cavity 33; when the number of drainage ports 311 is one, one drainage port 311 is arranged on the side of the frame corresponding to the receiving cavity 33, and located in the middle of the frame.

[0057] For the frame 31 provided with the drain port, the top surface area of the frame corresponding to the drain port 311 forms a water guide groove 312 with the edge area of the light-receiving surface of the photovoltaic laminate 10, wherein the water guide groove 312 is in communication with the drain port 311.

[0058] The first seal 20 is arranged in the accommodating cavity 33 of the frame 31 provided with the drain port, between the inner side wall of the frame and the edge area of the photovoltaic laminate 10; the hollow part 23 of the first seal 20 is arranged corresponding to the drain port 311 and the water guide groove 312, so that the accumulated water and dust on the light-receiving surface of the photovoltaic laminate 10 can flow out of the photovoltaic module through the water guide groove 312 and the drain port 311.

[0059] When the frame simultaneously includes the frame 31 provided with the drain port and the frame 32 not provided with the drain port, the following will be described in detail for the frame 31 provided with the drain port and the frame 32 not provided with the drain port, respectively:

[0060] First, for the frame 31 provided with the drain port, as shown in Figure 2 and Figure 3 , the frame 31 includes first frame parts 31a and second frame parts 31b arranged alternately, wherein the drain port 311 is arranged in the first frame part 31a, and the water guide groove 312 is formed between the first frame part 31a and the photovoltaic laminate 10 arranged in the accommodating cavity 33 of the first frame part 31a; the second frame part 31b is not provided with the drain port 311, and the water guide groove 312 does not exist between the second frame part 31b and the photovoltaic laminate 10 arranged in the accommodating cavity 33 of the second frame part 31b. Optionally, the first frame part 31a and the second frame part 31b are integrated.

[0061] As shown in Figure 4 and Figure 5 , the frame 31 provided with the drain port includes a first limiting part 313, a first side baffle 314 and a first supporting part 315. In the first frame part 31a, the first side baffle 314 is provided with the drain port 311 corresponding to the part of the accommodating cavity 33, and the first side baffle 314 and the first supporting part 315 surround the accommodating cavity 33; in the second frame part 31b, the first side baffle 314 connects the first limiting part 313 and the first supporting part 315; the first limiting part 313, the first side baffle 314 and the first supporting part 315 surround the accommodating cavity 33. The edge area of the photovoltaic laminate 10 is arranged in the accommodating cavity 33.

[0062] Further, the top surface area of the first frame part 31a corresponding to the drain port 311 and the light-receiving surface of the photovoltaic laminate 10, i.e. the inner side wall of the first limiting part 313 and the upper edge area of the photovoltaic laminate 10, form the water guide groove 312.

[0063] As shown in Figure 6 , the first sealing member 20 is arranged in the accommodating cavity 33 and between the inner wall of the frame and the edge region of the photovoltaic laminate 10. As shown in Figure 7 , the first sealing member 20 can include first sealing portions 21 and second sealing portions 22 arranged alternately. The second sealing portions 22 are provided with the hollowed-out portions 23.

[0064] As shown in Figure 8 , the second sealing portions 22 correspond to the drain ports 311 and are located between the lower edge region of the photovoltaic laminate 10 and the bottom surface of the accommodating cavity 33; as shown in Figure 9 , the first sealing portions 21 wrap the upper edge region, the lower edge region and the side surface of the photovoltaic laminate 10. As shown in Figure 10 , the hollowed-out portions 23 are arranged corresponding to the drain ports 311 and the water guide grooves 312 and cooperate with the first frame portion 31a to expose the upper edge region and the side surface of the photovoltaic laminate 10 in the accommodating cavity 33 of the first frame portion 31a. During the operation of the photovoltaic module, the water and dust on the surface of the photovoltaic module can flow to the water guide grooves 312 and flow out of the surface of the photovoltaic module through the drain ports 311.

[0065] Further, in order to simplify the preparation process of the photovoltaic module, the first sealing portions 21 and the second sealing portions 22 can be an integral structure. During the preparation of the first sealing member 20, the portions corresponding to the drain ports 311 and the water guide grooves 312 are removed to form the hollowed-out portions 23, thereby obtaining the first sealing portions 21 and the second sealing portions 22 arranged alternately. The first sealing member 20 including the first sealing portions 21 and the second sealing portions 22 is laid in the accommodating cavity 33 of the frame 31 provided with the drain ports.

[0066] Optionally, the first sealing member 20 is a sealing tape.

[0067] In an alternative embodiment, the first sealing member 20 can include a substrate layer and a first adhesive layer stacked, and the first adhesive layer is bonded to the photovoltaic laminate 10. In the photovoltaic module, the substrate layer is close to the inner wall of the frame, and the first adhesive layer is close to the photovoltaic laminate. The edge region of the photovoltaic laminate 10 is fixed in the accommodating cavity 33 by the first sealing member 20.

[0068] In an alternative embodiment, the first sealing member 20 includes a first adhesive layer, a substrate layer and a second adhesive layer stacked, and the first adhesive layer or the second adhesive layer is bonded to the photovoltaic laminate 10.

[0069] In the above two embodiments, the substrate layer can be a polyethylene (PE) foam, a polyvinyl chloride (PVC) film, a PVDF film, an ETFE film, a polychlorotrifluoroethylene (PCTFE) film, a polytetrafluoroethylene (PTFE) film, an ethylene chloro-tetra-fluoro-ethylene (ECTFE) film, a polyimide (PI) film, a thermoplastic polyolefin (TPO) film, a thermoplastic urethane (TPU) film, or a polyether ether ketone (PEEK) film; the first adhesive layer and the second adhesive layer can use the same adhesive base, and the adhesive base can include one or more of a polyurethane pressure-sensitive adhesive, a silicone pressure-sensitive adhesive, an acrylic pressure-sensitive adhesive, a natural rubber-based pressure-sensitive adhesive, and a synthetic rubber-based pressure-sensitive adhesive, but is not limited thereto.

[0070] It should be noted that for the frame 31 provided with the drain port, if the sealant is used to fill the gap between the inner side wall of the frame and the edge region of the photovoltaic laminate 10, non-continuous dispensing is required during the dispensing operation to avoid the area provided with the drain port 311 and the water guide groove 312, which greatly increases the dispensing time. For example, for a short frame, the continuous dispensing time is generally about 3s; when the short frame is provided with the drain port 311, the non-continuous dispensing time is prolonged to about 9s. It can be seen that the dispensing operation of the frame 31 provided with the drain port greatly prolongs the preparation time of the photovoltaic module. The embodiment of the present application sets the first sealing member 20 including the first sealing part 21 and the second sealing part 22 connected alternately, first forms the first sealing member 20 by punching or the like, and then directly lays the first sealing member 20 in the accommodating cavity 33 of the frame 31 provided with the drain port, thereby avoiding the non-continuous dispensing operation in the frame 31 provided with the drain port, and solving the problem of the great increase in the preparation time of the photovoltaic module caused by the non-continuous dispensing operation.

[0071] In addition, as Figure 4 、 Figure 5 、 Figure 8 and Figure 9As shown, the frame 31 provided with the drain opening can further include a first support bottom plate 316 and a first inner wall plate 317. The first support portion 315, the first side plate 314, the first support bottom plate 316 and the first inner wall plate 317 form the corner code cavity 34.

[0072] Specifically, for the first frame portion 31a, one end of the first side plate 314 is connected with the first support portion 315, and the other end is connected with the first support bottom plate 316; one end of the first inner wall plate 317 is connected with the first support portion 315, and the other end is connected with the first support bottom plate 316; so that the first support portion 315, the first side plate 314, the first support bottom plate 316 and the first inner wall plate 317 form the corner code cavity 34. For the second frame portion 31b, one end of the first side plate 314 is connected with the first limiting portion 313, and the other end is connected with the first support bottom plate 316; the first support portion 315 is connected with the first side plate 314 at a position close to the first limiting portion 313; one end of the first inner wall plate 317 is connected with the first support portion 315, and the other end is connected with the first support bottom plate 316; so that the first side plate 314, the first limiting portion 313 and the first support portion 315 form the containing cavity 33, and the first support portion 315, the first side plate 314, the first support bottom plate 316 and the first inner wall plate 317 form the corner code cavity 34.

[0073] Second, for the frame 32 without the drain opening, as shown, Figure 11 and Figure 12 It includes a second limiting portion 321, a second side plate 322, a second support portion 323, a second support bottom plate 324 and a second inner wall plate 325. One end of the second side plate 322 is connected with the second limiting portion 321, and the other end is connected with the second support bottom plate 324; the second support portion 323 is connected with the second side plate 322 at a position close to the second limiting portion 321; one end of the second inner wall plate 325 is connected with the second support portion 323, and the other end is connected with the second support bottom plate 324; so that the second side plate 322, the second limiting portion 321 and the second support portion 323 form the containing cavity 33, and the second support portion 323, the second side plate 322, the second support bottom plate 324 and the second inner wall plate 325 form the corner code cavity 34.

[0074] For the frame 32 without the drain opening, the photovoltaic module further includes a second sealing member 40 matched with the inner wall of the containing cavity 33 on the frame 32 without the drain opening. Specifically, the second sealing member 40 is arranged in the containing cavity 33 and located between the inner wall of the frame and the edge area of the photovoltaic laminate 10. The second sealing member 40 wraps the upper edge area, the lower edge area and the side surface of the photovoltaic laminate 10.

[0075] Alternatively, the second seal 40 may be made of sealant or edge sealing tape.

[0076] Furthermore, to reduce costs, the second seal 40 can be made of sealant.

[0077] Furthermore, such as Figure 11 As shown, when sealant is used as the second sealant 40, a third limiting part 326 connected to the second limiting part 321 is also provided in the receiving cavity 33. The second limiting part 321 and the third limiting part 326 form an overflow groove 327 to accommodate excess second sealant 40 and prevent the second sealant 40 from overflowing from the receiving cavity 33.

[0078] In an optional embodiment, regardless of whether a frame 31 with a drain outlet or a frame 32 without a drain outlet is used, during the assembly of multiple frames, such as Figure 13 As shown, adjacent borders can be combined and connected by setting corner codes 50 in corner code cavity 34.

[0079] The photovoltaic module of this utility model uses a frame 31 with a drainage outlet and a first sealing member 20 in combination. The drainage outlet 311 and the water guide channel 312 can quickly remove dust and moisture from the surface of the photovoltaic module, realizing the self-cleaning of the photovoltaic module. At the same time, it avoids the discontinuous glue application operation on the frame 31 with the drainage outlet, simplifies the preparation process, solves the problem of the photovoltaic module preparation time being greatly increased due to discontinuous glue application, effectively shortens the photovoltaic module preparation time, reduces the time cost of photovoltaic module preparation, is economical and practical, has strong feasibility, and is suitable for large-scale promotion and application.

[0080] This utility model also provides a photovoltaic power station, characterized in that it includes a plurality of photovoltaic modules as described above.

[0081] In an optional embodiment of this utility model, the horizontal plane of the frame 31 with drainage outlet in each photovoltaic module is lower than the horizontal plane of the frame 31 without drainage outlet. That is, compared with the frame 32 without drainage outlet, the frame 31 with drainage outlet is closer to the ground, so that the dust and water on the surface of the photovoltaic module flow to the frame 31 with drainage outlet which is closer to the ground under the action of gravity, and are discharged through the water guide channel 312 and the drainage outlet 311.

[0082] In an optional embodiment of this invention, the photovoltaic power station may further include other devices such as support frames. The support frames are used to fix the photovoltaic modules to ensure that they are in the optimal position for receiving sunlight.

[0083] According to the photovoltaic power station, the frame 31 provided with the drain port and the first sealing element 20 are adopted, the height of the horizontal plane where the frame 31 provided with the drain port is lower than the height of the horizontal plane where the frame 31 not provided with the drain port, dust and moisture on the surface of the photovoltaic module can be quickly removed through the drain port 311 and the water guide groove 312, meanwhile, the operation of discontinuous glue spraying in the frame 31 provided with the drain port is avoided, the preparation process is simplified, the problem that the preparation time of the photovoltaic module is greatly increased due to the discontinuous glue spraying operation is solved, the preparation time of the photovoltaic module is effectively shortened, it is economic and applicable, and is suitable for large-area popularization and application.

[0084] The above specific embodiment does not constitute a limitation on the protection scope of the utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A photovoltaic module, characterized by, The photovoltaic assembly comprises a photovoltaic laminate (10), a first sealant (20), and an assembly frame (30); wherein, the assembly frame (30) comprises a frame and a receiving cavity (33) enclosed by the frame; an edge region of the photovoltaic laminate (10) is placed in the receiving cavity (33); a drainage opening (311) is arranged on a side surface of the frame corresponding to the receiving cavity (33); a top surface region of the frame corresponding to the drainage opening (311) forms a water guide groove (312) with a light-receiving surface of the photovoltaic laminate (10), wherein the water guide groove (312) is in communication with the drainage opening (311); the first sealant (20) is arranged in the receiving cavity (33) between an inner side wall of the frame and the edge region of the photovoltaic laminate (10); the first sealant (20) is provided with a hollow portion (23) corresponding to the drainage opening (311) and the water guide groove (312).

2. The photovoltaic assembly according to claim 1, wherein the number of the frames is plural; wherein one or more of the frames is provided with the drainage opening (311); and / or, a plurality of the drainage openings (311) are arranged on the same frame at intervals.

3. The photovoltaic assembly according to claim 1, wherein the first sealant (20) comprises first sealant portions (21) and second sealant portions (22) arranged alternately, wherein the second sealant portions (22) are provided with the hollow portions (23); the second sealant portions (22) correspond to the drainage openings (311) and are located between a lower edge region of the photovoltaic laminate (10) and a bottom surface of the receiving cavity (33); the first sealant portions (21) wrap the upper edge region, the lower edge region, and the side surface of the photovoltaic laminate (10).

4. The photovoltaic assembly according to claim 3, wherein the first sealant portions (21) and the second sealant portions (22) are of an integral structure. the frame comprises a first limiting portion (313), a first side baffle (314), and a first support portion (315); 5. The photovoltaic module of claim 1, wherein, the first limiting portion (313), the first side baffle (314), and the first support portion (315) enclose the receiving cavity (33); or, the first side baffle (314) and the first support portion (315) enclose the receiving cavity (33). the frame further comprises a first support bottom plate (316) and a first inner wall plate (317); 6. The photovoltaic module of claim 5, wherein, the first support portion (315), the first side baffle (314), the first support bottom plate (316), and the first inner wall plate (317) enclose to form a corner code cavity (34).

7. The photovoltaic assembly according to claim 1, wherein the first sealant (20) comprises a base material layer and a first adhesive layer stacked, and the first adhesive layer is bonded to the photovoltaic laminate (10); or, ​ The first seal (20) comprises a first adhesive layer, a substrate layer and a second adhesive layer which are laminated, and the first adhesive layer or the second adhesive layer is bonded to the photovoltaic laminate (10). 8.The photovoltaic module according to claim 2, characterized in that, For the frame without the drain (311), The photovoltaic module further comprises a second seal (40) matched with the inner side wall of the accommodating cavity (33) on the frame without the drain (32).

9. A photovoltaic power plant, characterized in that, A plurality of photovoltaic modules as claimed in any one of claims 1-8. 10.The photovoltaic power station according to claim 9, characterized in that, The height of the horizontal plane where the frame with the drain (31) is located is lower than the height of the horizontal plane where the frame without the drain (31) is located.

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