Sectional material for photovoltaic module frame, photovoltaic module frame and photovoltaic module

Abstract

The utility model relates to a profile for a photovoltaic module frame, a photovoltaic module frame and a photovoltaic module, the profile comprises a first main body and a second main body which is connected with the first main body and arranged above the first main body, the first main body is provided with a cavity, and the second main body is provided with a clamping groove; the first body comprises a first bottom supporting plate, a first side plate, a second bottom supporting plate, a second side plate, a top supporting plate, a first reinforcing plate connected between the second body and the first side plate and a second reinforcing plate connected between the top supporting plate and the second side plate, and the first reinforcing plate and the second reinforcing plate extend in the width direction of the top supporting plate. A cavity is defined by the first side plate, the first bottom supporting plate, the second side plate, the top supporting plate, the first reinforcing plate and the second reinforcing plate. The arrangement of the first reinforcing plate and the second reinforcing plate in the profile is beneficial to improving the supporting strength of the top supporting plate, so that the structural strength and stability of the profile are improved, and the profile can meet the requirements of different load performance when being applied to a photovoltaic module.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic module technical field especially relates to a section bar for photovoltaic module frame, photovoltaic module frame and photovoltaic module. BACKGROUND

[0002] The photovoltaic module usually includes photovoltaic cell, laminated structure and frame, the laminated structure is used to package photovoltaic cell, and the frame is surrounded in the periphery of laminated structure, and the frame mainly plays the roles of fixing, sealing photovoltaic cell, enhancing the strength of module, facilitating transportation and installation and the like.

[0003] At present, due to the advantages of low carbon environmental protection (low energy consumption), high strength (high elastic modulus), low cost and the like, all manufacturers are developing related steel frames to replace the existing aluminum alloy frames, but the steel frame still has some defects affecting the process and reliability in addition to the above-mentioned advantages, and the most important one is that the steel frame is made by bending and cold rolling process, so that the frame structure strength and stability have certain differences, leading to the performance deficiency of the steel frame module during load bearing process and the failure of the module.

[0004] PCT / CN2022 / 126371 discloses a high-strength steel cold-bending section bar for photovoltaic module frame and photovoltaic module frame, the photovoltaic module frame includes a large U-shaped part, a small U-shaped part is embedded in the large U-shaped part; the lower side of the small U-shaped part is connected with an L-shaped part, the large U-shaped part, the small U-shaped part and the L-shaped part form a cavity; the small upper vertical wall and the small horizontal wall of the small U-shaped part are respectively abutted together with the upper part of the large upper vertical wall and the large horizontal wall of the large U-shaped part; the large horizontal wall of the small U-shaped part and the corresponding overlapping part of the large horizontal wall of the large U-shaped part are tightly connected through a predetermined interlayer welding structure; the outer edge of the large lower vertical wall of the large U-shaped part has an extension edge, and the extension edge and the horizontal wall overlapping part of the L-shaped part are tightly connected through a predetermined interlayer welding structure, and the predetermined interlayer welding structure adopts a complete straight line segment or a plurality of interval distributed straight line segments. The frame of the patent has good rigidity, high strength, strong torsional resistance, is stable, and can prolong the service life of the photovoltaic module.

[0005] However, the strength of the photovoltaic module frame in the patent still needs to be improved. SUMMARY

[0006] To solve the problems of the prior art, the utility model provides a section bar for photovoltaic module frame with higher structure strength and stability.

[0007] The second aspect of the utility model provides a photovoltaic module frame with higher structure strength and better stability, which can meet different load performance requirements.

[0008] The third aspect of the utility model provides a photovoltaic module.

[0009] To solve the above technical problems, the utility model adopts the following technical scheme:

[0010] A kind of photovoltaic module frame section bar, the section bar includes first body and second body being connected with the first body and being arranged above the first body, the first body has cavity, and the second body has clamping slot;

[0011] The first body includes first bottom support plate, first side plate being connected with the one end of the first bottom support plate, second bottom support plate being arranged on the first bottom support plate, second side plate being connected with the one end of the second bottom support plate and top support plate being connected with the second body;

[0012] The first body further includes first reinforcing plate being connected between the second body and the other end of first side plate and second reinforcing plate being connected between the top support plate and the other end of second side plate, the first reinforcing plate and second reinforcing plate are respectively arranged along the width direction of the top support plate, and the first reinforcing plate and second reinforcing plate are respectively located on the side of the top support plate close to the first bottom support plate;

[0013] The first side plate, first bottom support plate, second side plate, top support plate, first reinforcing plate and second reinforcing plate enclose the cavity;Or, the first side plate, first bottom support plate, second side plate, first reinforcing plate and second reinforcing plate enclose the cavity.

[0014] By adopting the above technical scheme, the first reinforcing plate and second reinforcing plate can support the top support plate to some extent, which helps to enhance the structural strength and stability of the photovoltaic module frame section bar, and can meet the needs of different load performance, and also can prolong the service life of the photovoltaic module.

[0015] In some embodiments, the first reinforcing plate and second reinforcing plate are respectively arranged in contact with the top support plate, which can further help to improve the structural strength of the section bar.

[0016] In some specific embodiments, the first reinforcing plate is a first U-shaped plate, and the opposite two side plates of the first U-shaped plate are respectively connected with the first side plate and the second body;

[0017] The second reinforcing plate is a second U-shaped plate, and the opposite two side plates of the second U-shaped plate are respectively connected with the top support plate and the second side plate.

[0018] In some specific embodiments, the opposite two side plates of the first U-shaped plate are arranged in contact;The opposite two side plates of the second U-shaped plate are arranged in contact.

[0019] In some embodiments, the first and second reinforcing plates are spaced apart in the width direction of the top support plate.

[0020] In some embodiments, the other end of the second bottom support plate is connected to the other end of the first bottom support plate, and the second bottom support plate is arranged in contact with part of the first bottom support plate.

[0021] In some embodiments, the first and second bodies are integrally formed.

[0022] In some embodiments, the profile is formed by bending and cold rolling a whole plate, the whole plate being a steel plate or an alloy steel plate, the steel plate or the alloy steel plate including a plate body and a plating layer plated on the surface of the plate body, the thickness of the steel plate or the alloy steel plate being 0.4-1.2 mm, and the gram weight of the plating layer being 200-600 g / m2.

[0023] In some embodiments, the profile is formed by bending and cold rolling a whole plate, and the two ends of the whole plate constitute part of the top support plate, the two ends being fixed by welding or gluing, or the two ends, the two ends and the first or second reinforcing plate being fixed by welding or gluing, respectively, to enhance the structural strength of the profile.

[0024] In some embodiments, the second body includes a third side plate connected to the first reinforcing plate and extending along the height direction of the first side plate, a first limiting plate connected to the other end of the third side plate and extending along the side direction of the third side plate, a fourth side plate connected to the top support plate and arranged in contact with the third side plate, and a second limiting plate connected to the other end of the fourth side plate and extending along the side direction of the third side plate, the other end of the first limiting plate and the other end of the second limiting plate being arranged in suspension, respectively.

[0025] The second limiting plate, the fourth side plate and the top support plate form the clamping groove, and the clamping groove and the cavity are located on the same side of the first side plate or the third side plate.

[0026] In some embodiments, the second body further includes a first bending portion formed by bending the other end of the first limiting plate towards the fourth side plate, and a second bending portion formed by bending the other end of the second limiting plate towards the fourth side plate, the second bending portion being located between the first bending portion and the second limiting plate.

[0027] In some embodiments, the first bending part near the fourth side plate is in contact with the second limiting plate, and a containing cavity is formed between the remaining part of the first bending part and the second limiting plate, and the second bending part is located in the containing cavity.

[0028] In some embodiments, the end of the first bending part is connected with the end of the second bending part.

[0029] In some embodiments, the opposite two sides of the second bending part are in contact with the second limiting plate and the first bending part respectively.

[0030] In some embodiments, the width of the first limiting plate is 5-13mm; the total height of the first side plate and the third side plate is 20-50mm; and the width of the second bottom support plate is 10-40mm.

[0031] The second technical solution adopted by the utility model is: a photovoltaic module frame, at least a part of the photovoltaic module frame is formed by the photovoltaic module frame profile.

[0032] The third technical solution adopted by the utility model is: a photovoltaic module, comprising a photovoltaic cell and a laminated component, the laminated component is used for packaging the photovoltaic cell, and the photovoltaic module further comprises the photovoltaic module frame, and the laminated component is installed on the photovoltaic module frame.

[0033] Compared with the prior art, the utility model has the following advantages due to the above technical solution:

[0034] The photovoltaic module frame profile of the utility model is connected with the first reinforcing plate between the second main body and the first side plate and connected with the second reinforcing plate between the top support plate and the second side plate, and the first reinforcing plate and the second reinforcing plate are respectively arranged along the width direction of the top support plate, which helps to improve the supporting strength of the top support plate, and further improve the structural strength and stability of the profile, and can meet the demand of different load performance on the photovoltaic module. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the embodiments of the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0036] Figure 1 It is the cross-sectional structure schematic view of the photovoltaic module frame profile of an embodiment of the utility model.

[0037] Figure 2 Fig. 2 is a cross-sectional structure schematic view of a profile for a photovoltaic module frame according to another embodiment of the present application;

[0038] Figure 3 Fig. 3 is a structure schematic view of a welding or gluing position of the profile for the photovoltaic module frame; Figure 2 Fig. 3 is a structure schematic view of a welding or gluing position of the profile for the photovoltaic module frame;

[0039] Reference signs

[0040] 100, first main body; 200, second main body; 300, cavity; 400, clamping groove;

[0041] 1, first bottom support plate; 2, first side plate; 3, second bottom support plate; 4, second side plate; 5, top support plate; 6, first reinforcing plate; 7, second reinforcing plate; 8, third side plate; 9, first limiting plate; 10, fourth side plate; 11, second limiting plate; 12, first bending part; 13, second bending part; 14, splicing position. DETAILED DESCRIPTION

[0042] In order to make the technical personnel in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by the person skilled in the art should belong to the scope of protection of the embodiments of the present application.

[0043] The photovoltaic module is a device capable of converting solar energy into electric energy, mainly composed of photovoltaic cells connected in series and parallel through wires and encapsulated by a laminating part. In order to improve the structural strength of the photovoltaic module and facilitate installation and transportation, a photovoltaic module frame is usually used to encapsulate the laminating part.

[0044] Referring to Figure 1 The profile for the photovoltaic module frame is made of a whole steel plate which is cold-pressed after being bent. The thickness of the steel plate can be 0.4-1.2 mm. In the present embodiment, the thickness of the steel plate can be 0.6 mm.

[0045] In other embodiments, the steel plate can also be a plated steel plate or a plated alloy steel plate, which includes a plate body and a plating layer plated on the surface of the plate body. The gram weight of the plating layer can be 200-600 g / m 2 , specifically 275 g / m 2 , 400 g / m 2 ​The coating layer can be selected according to the requirements. In some embodiments, the coating layer can include zinc-aluminum-magnesium coating layers with different proportions, such as the following compositions (in percentage) of the coating layer: 1-6% aluminum (low-aluminum XM) or 6-13% aluminum (medium-aluminum ZM), 1-4% magnesium, not more than 1% other elements (in addition to aluminum, magnesium, and zinc), and the balance being zinc. Specifically, 3% aluminum (low-aluminum XM), 2% magnesium, and the balance being zinc.

[0046] The coating layer can be selected according to the requirements. In some embodiments, the coating layer can include zinc-aluminum-magnesium coating layers with different proportions, such as the following compositions (in percentage) of the coating layer: 1-6% aluminum (low-aluminum XM) or 6-13% aluminum (medium-aluminum ZM), 1-4% magnesium, not more than 1% other elements (in addition to aluminum, magnesium, and zinc), and the balance being zinc. Specifically, 3% aluminum (low-aluminum XM), 2% magnesium, and the balance being zinc. Figure 1 As can be seen, the profile for the frame of the photovoltaic module provided in the embodiment includes a first body 100 and a second body 200 connected to the first body 100 and arranged above the first body 100, the first body 100 and the second body 200 are integrally formed, the first body 100 has a cavity 300, and the second body 200 has a clamping groove 400 for clamping a laminated component of the photovoltaic module to accommodate the laminated component.

[0047] As can be seen, the profile for the frame of the photovoltaic module provided in the embodiment includes a first body 100 and a second body 200 connected to the first body 100 and arranged above the first body 100, the first body 100 and the second body 200 are integrally formed, the first body 100 has a cavity 300, and the second body 200 has a clamping groove 400 for clamping a laminated component of the photovoltaic module to accommodate the laminated component. Figure 1 As can be seen, the first body 100 includes a first bottom support plate 1, a first side plate 2 connected to one end of the first bottom support plate 1, a second bottom support plate 3 arranged above the first bottom support plate 1 and in contact with part of the first bottom support plate 1, a second side plate 4 connected to one end of the second bottom support plate 3, a top support plate 5 arranged above the first bottom support plate 1, a first reinforcing plate 6 connected between the upper end of the first side plate 2 and the second body 200, and a second reinforcing plate 7 connected between the upper end of the second side plate 4 and one end of the top support plate 5, the other end of the top support plate 5 is connected to the second body 200, and the other end of the first bottom support plate 1 is connected to the other end of the second bottom support plate 3 to enhance the strength of the profile.

[0048] The second bottom support plate 3 is arranged in overlapping with part of the first bottom support plate 1, while in the width direction of the top support plate 5, the first reinforcing plate 6 and the second reinforcing plate 7 are arranged in sequence and with a spacing, and the first reinforcing plate 6 and the second reinforcing plate 7 are located on the side of the top support plate 5 close to the first bottom support plate 1, so as to support the top support plate 5 and increase the structural strength of the profile.

[0049] As can be seen, the profile for the frame of the photovoltaic module provided in the embodiment includes a first body 100 and a second body 200 connected to the first body 100 and arranged above the first body 100, the first body 100 and the second body 200 are integrally formed, the first body 100 has a cavity 300, and the second body 200 has a clamping groove 400 for clamping a laminated component of the photovoltaic module to accommodate the laminated component. Figure 1 As can be seen, the second body 200 includes a third side plate 8 connected to the first reinforcing plate 6 and arranged in the height direction of the first side plate 2, a first limiting plate 9 connected to the upper end of the third side plate 8 and arranged in the side direction of the third side plate 8, a fourth side plate 10 connected to the other end of the top support plate 5 and arranged in contact with the third side plate 8, and a second limiting plate 11 connected to the upper end of the fourth side plate 10 and arranged in contact with the first limiting plate 9, the other end of the first limiting plate 9 and the other end of the second limiting plate 11 are respectively arranged in suspension.

[0050] In the embodiment, the first bottom support plate 1, the second side plate 4, the top support plate 5 and the second bottom support plate 3 are located on the same side of the first side plate 2, and the first side plate 2, the first bottom support plate 1, the second side plate 4, the first reinforcing plate 6, the second reinforcing plate 7 and the top support plate 5 enclose the cavity 300.

[0051] The first limiting plate 9 and the second limiting plate 11 are located on the same side of the second side plate 4, i.e., on the same side of the first side plate 2, so that the clamping groove 400 and the cavity 300 are located on the same side of the first side plate 2 or the second side plate 4.

[0052] In order to further improve the structural strength of the profile and make the profile have better stability, the first reinforcing plate 6 is a first U-shaped plate, the ends of the opposite two side plates of the first U-shaped plate are connected with the first side plate 2 and the third side plate 8 respectively, and the opposite two side plates of the first U-shaped plate are in contact with each other; the second reinforcing plate 7 is a second U-shaped plate, the ends of the opposite two side plates of the second U-shaped plate are connected with the top support plate 5 and the second side plate 4 respectively, and the opposite two side plates of the second U-shaped plate are in contact with each other.

[0053] In order to better fix the laminated part of the photovoltaic module in the clamping groove 400 and provide better sealing, a sealant is usually coated between the surface of the laminated part in contact with the clamping groove 400. In the conventional profile for the frame of the photovoltaic module, the surface of the laminated part in contact with the clamping groove 400 is usually a plane, and some sealant will overflow after coating, which needs to be wiped and scraped, increasing the labor cost. Therefore, in some embodiments of the present application, the second body 200 further comprises a first bending part 12 formed by bending the overhanging end of the first limiting plate 9 towards the fourth side plate 10, and a second bending part 13 formed by bending the overhanging end of the second limiting plate 11 towards the fourth side plate 10, the part of the first bending part 12 close to the fourth side plate 10 is in contact with the second limiting plate 11, so that a receiving cavity is formed between the remaining part of the first bending part 12 and the second limiting plate 11, and the second bending part 13 is located in the receiving cavity, so that the second bending part 13 is wrapped by the first bending part 12. In this way, when the laminated part of the photovoltaic module is clamped into the clamping groove 400, the lower surface of the first bending part 12 abuts against the laminated part, and a cavity is formed between the laminated part and the second limiting plate 11 and the first bending part 12, which can be used as a glue overflow groove to store excess sealant and improve the glue overflow phenomenon.

[0054] Since the profile for the frame of the photovoltaic module is integrally formed from a whole steel plate, as shown in Figure 1In some embodiments, the free end of the first bending part 12 and the free end of the second bending part 13 can be two ends of the whole steel plate, and there is no joint in other parts of the profile, so that the profile has high strength and is not easy to deform. By using the free end of the first bending part 12 and the free end of the second bending part 13 as the splicing position of the whole steel plate, on the one hand, the overflow groove can be increased to improve the overflow effect; on the other hand, the splicing position can be fixed without welding or gluing, because the first bending part 12 wraps the second bending part 13 to fix the splicing position.

[0055] In some embodiments, the total height of the first side plate 2 and the third side plate 8 is 20-50 mm, such as 30 mm, 33 mm, 35 mm, etc.; the width of the second bottom support plate 3 is 10-40 mm, such as 15 mm, 20 mm, 30 mm, etc.; the width of the first limiting plate 9 is 5-13 mm, such as 8 mm, 10 mm, etc.; the above-mentioned dimensions can be designed according to actual needs.

[0056] Referring to Figure 2 , Figure 2 Another structure schematic diagram of the profile for the photovoltaic module frame provided in the present application is shown, in some embodiments, the free end of the first bending part 12 and the free end of the second bending part 13 are connected, and the opposite sides of the second bending part 13 are respectively in contact with the second limiting plate 11 and the first bending part 12, and the first bending part 12 is not in contact with the second limiting plate 11, so that when the laminated part of the photovoltaic module is clamped into the clamping groove 400, the lower surface of the first bending part 12 is in contact with the laminated part, and a cavity is still formed between the laminated part and the second limiting plate 11, which is used as an overflow groove to store excess sealant and improve the overflow phenomenon.

[0057] Referring to Figure 2 The profile for the photovoltaic module frame is integrally formed by a whole steel plate, and the two ends of the whole steel plate respectively constitute part of the top support plate 5, and referring to Figure 3 The splicing position 14 between the two ends is used to fix the two ends by welding or gluing to enhance the strength of the profile. In order to further enhance the strength of the profile, the two ends are respectively fixed with the second reinforcing plate 7 by welding or gluing, and in other embodiments, the two ends can also be respectively fixed with the first reinforcing plate 6 by welding or gluing.

[0058] In some embodiments, the welding uses a laser welding process, and the glue used for gluing can be polyurethane composite glue.

[0059] Compared with the existing photovoltaic module frame profile, the photovoltaic module frame profile has higher structural strength, and when used in the photovoltaic module, not only the structural strength and stability of the photovoltaic module are increased, but also the load performance of different photovoltaic modules can be met, and the service life of the photovoltaic module is prolonged.

[0060] The photovoltaic module frame provided in some embodiments of the present application is formed by at least a part of the photovoltaic module frame profile of any of the above embodiments.

[0061] The photovoltaic module provided in still some embodiments of the present application comprises a photovoltaic cell, a laminated component and the photovoltaic module frame, the laminated component is used for packaging the photovoltaic cell, and the laminated component is mounted on the photovoltaic module frame, specifically, the laminated component is clamped into the clamping groove 400.

[0062] It should be further noted that the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third", "fourth" can be explicitly or implicitly included at least one of the features.

[0063] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "vertical", "horizontal", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0064] In addition, in the description of the present application, unless otherwise specified and limited, it should be noted that the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, or indirect connection through an intermediate medium, and those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0065] The above embodiments are only used to illustrate the embodiments of the present application, and are not limited to the embodiments of the present application. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of the present application, therefore all equivalent technical solutions also belong to the scope of the embodiments of the present application, and the patent protection scope of the embodiments of the present application should be defined by the claims.

Claims

1. A profile for a frame of a photovoltaic module, the profile comprising a first body (100) and a second body (200) connected to the first body (100) and arranged above the first body (100), the first body (100) having a cavity (300), and the second body (200) having a clamping groove (400); the first body (100) comprising a first bottom support plate (1), a first side plate (2) connected to one end of the first bottom support plate (1), a second bottom support plate (3) arranged on the first bottom support plate (1), a second side plate (4) connected to one end of the second bottom support plate (3), and a top support plate (5) connected to the second body (200); characterized in that: the first body (100) further comprises a first reinforcing plate (6) connected between the second body (200) and the other end of the first side plate (2), and a second reinforcing plate (7) connected between the top support plate (5) and the other end of the second side plate (4), the first reinforcing plate (6) and the second reinforcing plate (7) are respectively arranged along the width direction of the top support plate (5), and the first reinforcing plate (6) and the second reinforcing plate (7) are respectively located on the side of the top support plate (5) close to the first bottom support plate (1); the first side plate (2), the first bottom support plate (1), the second side plate (4), the top support plate (5), the first reinforcing plate (6) and the second reinforcing plate (7) enclose the cavity (300); or the first side plate (2), the first bottom support plate (1), the second side plate (4), the first reinforcing plate (6) and the second reinforcing plate (7) enclose the cavity (300).

2. The profile for photovoltaic module frame according to claim 1, characterized in that: the first reinforcing plate (6) and the second reinforcing plate (7) are respectively arranged in contact with the top support plate (5).

3. The photovoltaic module frame profile of claim 2, characterized in that: the first reinforcing plate (6) is a first U-shaped plate, and the opposite two side plates of the first U-shaped plate are respectively connected to the first side plate (2) and the second body (200); the second reinforcing plate (7) is a second U-shaped plate, and the opposite two side plates of the second U-shaped plate are respectively connected to the top support plate (5) and the second side plate (4).

4. The photovoltaic module frame profile of claim 1, wherein: in the width direction of the top support plate (5), the first reinforcing plate (6) and the second reinforcing plate (7) are spaced apart from each other; and / or the other end of the second bottom support plate (3) is connected to the other end of the first bottom support plate (1); and / or the second bottom support plate (3) is arranged in contact with part of the first bottom support plate (1); and / or the first body (100) and the second body (200) are integrally formed.

5. The photovoltaic module frame profile according to any one of claims 1 to 4, characterized in that: the profile is formed by bending and cold rolling a whole plate, and the whole plate is a steel plate or an alloy steel plate; and / or The profile is formed by bending and cold rolling a whole plate, and two ends of the whole plate constitute a part of the top support plate (5), and the two ends are fixed by welding or gluing, or the two ends and the first reinforcing plate (6) or the second reinforcing plate (7) are fixed by welding or gluing respectively.

6. The photovoltaic module frame profile according to any one of claims 1 to 4, characterized in that: The second body (200) comprises a third side plate (8) connected to the first reinforcing plate (6) and extending along the height direction of the first side plate (2), a first limiting plate (9) connected to the other end of the third side plate (8) and extending along the side direction of the third side plate (8), a fourth side plate (10) connected to the top support plate (5) and in contact with the third side plate (8), and a second limiting plate (11) connected to the other end of the fourth side plate (10) and extending along the side direction of the third side plate (8), and the other end of the first limiting plate (9) and the other end of the second limiting plate (11) are respectively provided in a suspended manner. The second limiting plate (11), the fourth side plate (10) and the top support plate (5) constitute the clamping groove (400), and the clamping groove (400) and the cavity (300) are located on the same side of the first side plate (2) or the third side plate (8).

7. The profile for photovoltaic module frames according to claim 6, characterized in that: The second body (200) further comprises a first bending portion (12) formed by bending the other end of the first limiting plate (9) towards the fourth side plate (10), and a second bending portion (13) formed by bending the other end of the second limiting plate (11) towards the fourth side plate (10), and the second bending portion (13) is located between the first bending portion (12) and the second limiting plate (11).

8. The photovoltaic module frame profile of claim 7, characterized in that: The first bending portion (12) is in contact with the second limiting plate (11) near the fourth side plate (10), and a receiving cavity is formed between the remaining part of the first bending portion (12) and the second limiting plate (11), and the second bending portion (13) is located in the receiving cavity; and / or, The end of the first bending portion (12) is connected to the end of the second bending portion (13); and / or, The opposite sides of the second bending portion (13) are in contact with the second limiting plate (11) and the first bending portion (12) respectively.

9. A photovoltaic module frame, characterized by: The photovoltaic module frame is formed by the profile according to any one of claims 1-8.

10. A photovoltaic module comprising a photovoltaic cell and a lamination component for encapsulating the photovoltaic cell, characterized by: The photovoltaic module further comprises the photovoltaic module frame according to claim 9, and the laminated component is mounted on the photovoltaic module frame.

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