A frame of a photovoltaic module and a photovoltaic module

Abstract

The utility model relates to photovoltaic technical field discloses a kind of frame and photovoltaic module of photovoltaic module, it is applied to the adjustment and calibration of photovoltaic module production assembly line, frame includes frame body and heightening piece, frame body includes the lower support plate being set along first direction and the outer side plate and inner side plate being connected lower support plate and relatively set along second direction, outer side plate has first height along second direction, first direction is perpendicular with second direction;Heightening piece includes a heightening plate, heightening plate has second height along second direction;Heightening plate is combined with the lower support plate of frame body, the height of frame is the sum of first height and second height.Adopting this scheme, corresponding heightening piece is set to be connected with the frame body of standard photovoltaic module, equivalent to increase the height of frame, to increase the height of photovoltaic module, avoid the problem that existing standard photovoltaic module frame is exploded in prior art, and install corresponding new size frame, cause component burst damage deformation.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a frame for a photovoltaic module and a photovoltaic module. Background Technology

[0002] Against the backdrop of the rapid development of the photovoltaic industry, standardized production of photovoltaic modules is crucial for improving production efficiency and reducing costs. During the production process, reference modules are typically used as a benchmark to calibrate and debug the production line. The structure, material, and dimensions of the reference module should be consistent with the module under test to ensure the accuracy of the calibration. Currently, the standard frame height for photovoltaic modules is 30mm, and companies routinely produce modules with a 30mm frame height to meet order timeliness requirements. However, market demand is diversified, and occasionally non-standard orders arise, such as requiring the production of photovoltaic modules with a frame height greater than 30mm (e.g., 35mm high modules). When producing such modules, a 35mm frame height module is needed as a reference module for calibrating and debugging the production line. Figure 5 The image shows the structure of a common photovoltaic module frame, such as... Figure 5 As shown, the height of the border refers to the size of side B, which is the distance between the surfaces of side A and side C.

[0003] A common industry practice is to disassemble photovoltaic modules with 30mm high frames and replace them with 35mm high frames. However, this approach has significant drawbacks: firstly, the disassembled 30mm standard frames are prone to deformation and damage during disassembly, often rendering them unusable and resulting in a significant waste of standard frame material; secondly, the disassembly of 30mm standard frames carries a high risk of module breakage, potentially damaging the internal photovoltaic glass and significantly increasing the production cost of 35mm high frame orders, thus limiting photovoltaic module manufacturers' ability to flexibly respond to diverse market demands. Utility Model Content

[0004] Based on this, a frame and a photovoltaic module are provided to improve the problem of photovoltaic module cracking, damage and deformation caused by disassembling the frame of the existing photovoltaic module and installing a corresponding new frame when dealing with photovoltaic modules with different size requirements.

[0005] On the one hand, this utility model provides a frame for a photovoltaic module, applied to the calibration of a photovoltaic module production line, the frame comprising:

[0006] The frame body includes a lower support plate disposed along a first direction, and an outer side plate and an inner side plate connected to the lower support plate and disposed opposite to each other along a second direction. The outer side plate has a first height along the second direction, and the first direction is perpendicular to the second direction.

[0007] The heightening component includes a heightening plate having a second height along a second direction;

[0008] The heightening plate is combined with the lower support plate of the frame body, and the height of the frame is the sum of the first height and the second height.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] In one implementation, the heightening component also includes a first sidewall and a second sidewall disposed opposite to each other. The first sidewall and the second sidewall both extend in a direction perpendicular to the heightening plate and are respectively connected to the two ends of the heightening plate. The first sidewall, the second sidewall and the heightening plate together form a U-shaped groove structure.

[0011] When the heightening plate is combined with the lower support plate of the frame body, the lower end of the frame body is located in the U-shaped groove, and the first side wall and the second side wall are in contact with the outer side plate and the inner side plate, respectively.

[0012] In one implementation, the lower end of the frame body is interference-fitted with the U-shaped groove.

[0013] In one implementation, the side of the first sidewall facing the second sidewall is a plane, and the side of the second sidewall facing the first sidewall is a convex arc surface; the two sides of the raised plate in the second direction are both planes and parallel to each other.

[0014] In one implementation, the heightening component includes a first reducing section and a second reducing section.

[0015] Both the first material reduction section and the second material reduction section are located on the side of the second sidewall facing away from the first sidewall;

[0016] Along the second direction, the first material reduction section and the second material reduction section are respectively opened at both ends of the second sidewall, so that the middle part of the second sidewall facing away from the first sidewall forms an outwardly convex first protrusion, and the arc surfaces on both sides of the second sidewall and the first protrusion are arranged opposite to each other in the second direction.

[0017] In one implementation, the U-shaped groove includes:

[0018] It abuts against the bottom surface, and the bottom surface abuts against the lower support plate;

[0019] Multiple abutting teeth are located at the bottom of the U-shaped groove. The tops of the multiple abutting teeth are coplanar and form an abutting bottom surface. The abutting bottom surface constitutes the abutting plane between the raised plate and the frame body in the second direction.

[0020] In one implementation, the heightening component includes:

[0021] The disassembly clearance groove is located on the bottom surface of the contact area.

[0022] In one implementation, the abutting teeth are dot-like protrusions, and the raised part is made of plastic.

[0023] In one implementation, the photovoltaic module production line includes at least two conveyor belts.

[0024] In any two adjacent conveyor belts, the end of the previous conveyor belt and the beginning of the next conveyor belt are arranged adjacent to each other and have a first gap.

[0025] The heightening plate is located on the bottom surface of the photovoltaic module, and the dimension of the heightening plate along the conveyor belt transport direction is larger than the first gap.

[0026] On the other hand, this utility model also provides a photovoltaic module, including a frame for the photovoltaic module.

[0027] The beneficial effects of this utility model are as follows: By setting a corresponding heightening component to connect with the frame body of the standard-sized reference component, the height of the frame is effectively increased. Specifically, the height of the frame is increased from the height of the frame body to the sum of the height of the frame body and the height of the heightening plate, thereby increasing the height of the photovoltaic module. This allows the photovoltaic module with the heightening component installed to be promptly calibrated and tested on the production line, shortening the order production cycle for photovoltaic modules of different sizes. Therefore, this solution does not require disassembly and replacement to change the frame height, effectively avoiding the problem of module cracking, damage, and deformation caused by disassembling the frame of the existing standard-sized reference component and installing a new frame of the corresponding size in the prior art. This solution only requires the addition of a heightening component connected to the bottom of the frame body, which is simple to operate and has high installation efficiency, reducing photovoltaic module losses and thus reducing order costs. At the same time, it effectively meets the production cycle requirements of the new frame size, resulting in good economic benefits. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the frame structure of a photovoltaic module in one embodiment;

[0029] Figure 2 A top view of the frame of the photovoltaic module in another embodiment;

[0030] Figure 3 for Figure 2 Sectional view at point DD;

[0031] Figure 4 This is a schematic cross-sectional view of the photovoltaic module after the heightening component is installed in one embodiment;

[0032] Figure 5 This is a schematic diagram of the frame structure of an existing photovoltaic module.

[0033] Appendix Figure 1-3 In the diagram, the components represented by each number are as follows:

[0034] 10. Laminated components;

[0035] 20. Frame body; 21. Lower support plate; 22. Outer side plate; 23. Inner side plate;

[0036] 30. Heightening component; 31. Heightening plate; 32. First sidewall; 33. Second sidewall; 34. First material reduction section; 35. Second material reduction section; 36. First protrusion; 37. Abutting bottom surface; 38. Disassembly gap groove; 39. Clearance groove;

[0037] Appendix Figure 4 middle:

[0038] A, B, and C are respectively the A-side, B-side, and C-side of the photovoltaic module frame;

[0039] X is the first direction, and Y is the second direction. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit its scope. It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the illustrations only show components relevant to this utility model and are not drawn according to the actual number, shape, and size of components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the component layout may be more complex. The structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0041] In the embodiments, the frame of the photovoltaic module generally adopts a height of 30mm as the standard specification (e.g., Figure 5As shown, the frame height refers to the dimension of side B. The company maintains a stock of photovoltaic modules of this size as reference modules for commissioning and calibration. When receiving orders for non-standard photovoltaic modules with a height requirement greater than 30mm, non-standard photovoltaic modules meeting the order height requirement must be used as reference modules. In this case, the frame of the existing 30mm high reference module needs to be disassembled, and the removed laminate 10 is then installed with a new frame size. During this frame disassembly process, the disassembled standard photovoltaic modules are prone to deformation, cracking, and other damage, resulting in a significant proportion of consumption in the need to replace standard photovoltaic modules with frames of different sizes. By designing the standard module frame auxiliary tooling heightening component 30 of this application, the acquisition cost of photovoltaic modules of other heights (non-standard photovoltaic modules) is simplified. This avoids the deformation and cracking losses of standard photovoltaic modules caused by disassembling standard photovoltaic modules and replacing them with new frames to manufacture non-standard frames, thereby reducing the loss rate of standard photovoltaic modules, reducing the consumption of standard photovoltaic modules, reducing waste, and thus reducing costs. To achieve the above objectives, this solution provides the following technical solution.

[0042] A frame for a photovoltaic module, see Figure 1 and Figure 4 This device is used for calibration in photovoltaic module production lines. The frame includes a frame body 20 and a heightening component 30. The frame body 20 includes a lower support plate 21 arranged along a first direction, and an outer side plate 22 and an inner side plate 23 connected to the lower support plate 21 and arranged opposite to each other along a second direction. The outer side plate 22 has a first height along the second direction, and the first direction is perpendicular to the second direction. The heightening component 30 includes a heightening plate 31, which has a second height along the second direction. The heightening plate 31 is combined with the lower support plate 21 of the frame body 20, and the height of the frame is the sum of the first height and the second height.

[0043] This solution uses a corresponding heightening component 30 to connect with the frame body 20 of the standard photovoltaic module, effectively increasing the height of the frame. Specifically, the frame height is increased from the height of the frame body 20 to the sum of the height of the frame body 20 and the height of the heightening plate 31, thus increasing the height of the photovoltaic module. This allows the photovoltaic modules with the heightening component 30 installed to be promptly tested and adjusted on the production line, shortening the order production cycle for photovoltaic modules of different sizes. Therefore, this solution eliminates the need for disassembly and replacement to change the frame height, effectively avoiding the problem of photovoltaic module cracking, damage, and deformation caused by disassembling the existing standard photovoltaic module frame and installing a new frame size in existing technologies. This solution only requires the addition of a heightening component 30 connected to the bottom of the frame body 20, making operation simple and installation of the heightening component 30 highly efficient. This reduces photovoltaic module losses and lowers order costs, while also effectively meeting the production cycle requirements of the new frame size, resulting in good economic benefits.

[0044] In this embodiment, a standard photovoltaic module is a combination of a laminate 10 and a frame body 20, while a non-standard photovoltaic module is a combination of a laminate 10, a frame body 20, and a heightening member 30. In the subject matter of this solution, "a frame for a photovoltaic module," "photovoltaic module" refers to a "non-standard photovoltaic module." The height of the heightening plate 31 corresponding to the laminate 10 is the height difference between the non-standard photovoltaic module and the standard photovoltaic module. That is, the non-standard photovoltaic module obtained by installing the heightening member 30 on a standard photovoltaic module requires a height greater than that of the standard photovoltaic module to be used in this solution for connecting the heightening member 30.

[0045] In this embodiment of the utility model, adjusting the photovoltaic module production line can be understood as adjusting the equipment on the production line, including production equipment and testing equipment.

[0046] In some embodiments, the heightening member 30 further includes a first sidewall 32 and a second sidewall 33 disposed opposite to each other. Both the first sidewall 32 and the second sidewall 33 extend in a direction perpendicular to the heightening plate 31 and are respectively connected to both ends of the heightening plate 31. The first sidewall 32, the second sidewall 33, and the heightening plate 31 together form a U-shaped groove structure. When the heightening plate 31 is combined with the lower support plate 21 of the frame body 20, the lower end of the frame body is located within the U-shaped groove, and the first sidewall 32 and the second sidewall 33 contact the outer side plate 22 and the inner side plate 23, respectively. Thus, by extending the frame body 20 into the U-shaped groove and abutting against the heightening plate 31, the height of the frame is increased from the height of the frame body 20 to the sum of the height of the frame body 20 and the height of the heightening plate 31.

[0047] By setting a U-shaped groove to fix the frame body 20, the feature that the frame body 20 protrudes from the surface of the laminate 10 of the photovoltaic module is fully utilized. The U-shaped groove also facilitates the engagement and disassembly of the heightening member 30 and the frame body 20. When connecting, the heightening member 30 can be clamped to the frame body 20 by deforming the first side wall 32 and / or the second side wall 33.

[0048] In some embodiments, see Figure 1 and Figure 4 The lower end of the frame body 20 is interference-fitted with the U-shaped groove. In this way, the interference fit causes the heightening part 30 to deform to a certain extent and locks it tightly with the frame body 20, thereby making the connection between the heightening part 30 and the frame body 20 more tight.

[0049] In some embodiments, see Figure 2 and Figure 3The side of the first sidewall 32 facing the second sidewall 33 is a flat surface, while the side of the second sidewall 33 facing the first sidewall 32 is a raised arc surface. The two sides of the extension plate 31 in the second direction are both flat and parallel to each other. In this way, by setting the arc surface of the second sidewall 33 to simultaneously abut against the flat surface of the first sidewall 32 and the frame body 20, the frame body 20 can be abutted against the flat surface of the first sidewall 32 by the deformation of the arc surface of the second sidewall 33 during deformation. This ensures that the U-shaped structure of the frame body 20 and the extension member 30 has sufficient contact area, thereby enhancing the stability of the extension member 30 and the frame body 20 after installation.

[0050] In this embodiment, the minimum distance between the first sidewall 32 and the second sidewall 33 is not greater than the width of the lower edge of the frame body 20, so that the heightening member 30 and the frame body 20 are in an interference fit; the most protruding position of the arc surface of the second sidewall 33 is located in the middle of the second sidewall 33 in the second direction.

[0051] In some embodiments, see Figure 3 The heightening component 30 includes a first material-reducing part 34 and a second material-reducing part 35, both of which are located on the side of the second sidewall 33 facing away from the first sidewall 32. In this way, by providing two material-reducing parts, the weight of the heightening component 30 is reduced, achieving a weight reduction effect and preventing the heightening component 30 from detaching from the frame body 20 due to excessive weight.

[0052] Along the direction perpendicular to the heightening plate 31, the first material reduction portion 34 and the second material reduction portion 35 are respectively formed at both ends of the second sidewall 33, so that a first protrusion 36 is formed in the middle of the side of the second sidewall 33 facing away from the first sidewall 32. The arc surfaces on both sides of the second sidewall 33 and the first protrusion 36 are arranged opposite to each other in the second direction. In this way, the heightening member 30 abuts against the frame body 20 through the most protruding part of the arc surface facing the first sidewall 32, and the first protrusion 36 is set in the middle of the second sidewall 33, so that the first protrusion 36 can serve as a force-bearing point, which facilitates the installation or removal of the heightening member 30.

[0053] In the embodiment, the first sidewall 32 and the second sidewall 33 are provided with clearance grooves 39 at the positions where they connect with the heightening plate 31, so that the frame body 20 can fully extend into the bottom of the U-shaped groove.

[0054] In some embodiments, see Figure 3 and Figure 4The U-shaped groove includes an abutting bottom surface 37 and multiple abutting teeth. The abutting bottom surface 37 abuts against the lower support plate 21. The multiple abutting teeth are located at the bottom of the U-shaped groove, and the tops of the multiple abutting teeth are coplanar, forming the abutting bottom surface 37. The abutting bottom surface 37 constitutes the abutting plane between the raised plate 31 and the frame body 20 in the second direction. In this way, if the abutting teeth are not provided, the bottom surfaces of the raised piece 30 and the frame body 20 will have a large abutting plane, which will easily form a near-sealed contact surface during disassembly, and a local vacuum negative pressure may be formed in between, requiring a great deal of force to separate them, making it difficult to separate the raised piece 30 from the frame body 20 and easily damaging the frame body 20. However, this solution provides multiple abutting teeth on the abutting plane, and the gaps between the abutting teeth form an air circulation channel. During disassembly, external air can instantly enter the contact surface through the tooth groove, balancing the internal and external air pressure, completely eliminating the vacuum adsorption effect. The separation force only needs to overcome the frictional force, without the need to additionally resist the vacuum suction force.

[0055] In the embodiment, for the tooth shape of the abutting tooth, the top of the abutting tooth is preferably flat and not a sharp tooth tip, so as to avoid damage when the frame body 20 abuts the abutting bottom surface 37 formed by the top of the abutting tooth.

[0056] In some embodiments, see Figure 3 and Figure 4 The extension member 30 includes a disassembly gap groove 38, which is formed on the abutment bottom surface 37. Thus, the disassembly gap groove 38 forms a recessed groove structure facing away from the frame body 20. This groove significantly increases the gap space between the extension member 30 and the frame body 20 after contact, allowing air to more easily enter between the workpiece and the bottom surface of the U-shaped structure. This helps to break the adhesion between the frame body 20 and the bottom surface of the U-shaped structure, further reducing the force required for disassembly. Furthermore, the disassembly gap groove 38 reduces the actual contact area between the extension member 30 and the bottom surface of the U-shaped structure, thereby reducing the friction between the extension member 30 and the bottom surface. This reduced friction makes the frame body 20 easier to disassemble, further improving the ease of disassembly.

[0057] In some embodiments, see Figure 1 The disassembly gap groove 38 has at least one and is symmetrically arranged along the length and width directions of the abutting bottom surface 37. In this way, the symmetrically arranged disassembly gap grooves 38 make the force on the frame body 20 more uniform, prevent one side from jamming during disassembly, thereby reducing the bending or torque caused by uneven force on the heightening member 30 and the frame body 20, preventing scratches, wear or deformation on the abutting surface of the two, and protecting the integrity and surface quality of the workpiece.

[0058] In some embodiments, the disassembly gap groove 38 is single and rhomboid. In this way, when designing the structure, the rhomboid structure can adjust its extension dimensions in both directions according to the length and width dimensions of the bottom surface 37.

[0059] In some embodiments, the abutment teeth are dot-like protrusions, and the raised part 30 is a plastic part. Thus, since the raised part 30 is made of plastic, the abutment teeth can be manufactured by injection molding, forming a single piece. The abutment tooth structure does not require additional processing, resulting in good cost control.

[0060] In this embodiment, the frame body 20 has a rectangular frame structure, and at least one heightening member 30 is connected to the lower side of each of the two long sides of the rectangle. By connecting at least one heightening member 30 to the lower side of the frame body 20, the height of the long sides of the frame body 20 is increased uniformly. The number of heightening members 30 that engage with the long sides of the frame body 20 can be flexibly adjusted according to the relative lengths of the frame body 20 and the heightening members 30, ensuring the stability of the photovoltaic module with the heightening members 30 during calibration.

[0061] In some embodiments, the photovoltaic module production line includes at least two conveyor belts. In any two adjacent conveyor belts, the end of the previous conveyor belt and the beginning of the next conveyor belt are adjacent to each other and have a first gap. The heightening plate 31 is located on the bottom surface (i.e., surface C) of the photovoltaic module, and the dimension of the heightening plate 31 along the conveyor belt transport direction is larger than the first gap. In this way, when the production line is adjusted, the photovoltaic module with the heightening plate 30 needs to flow on the production line. Therefore, the relationship between the dimension of the heightening plate 31 in the transport direction and the first gap between the two adjacent conveyor belts is limited, so that the heightening plate 31 will not get stuck at the first gap and be unable to continue moving on the conveyor belt, thereby improving the stability of the photovoltaic module flowing on the conveyor belt.

[0062] In this embodiment, the frame body 20 is placed on the conveyor belt along its length direction, and the length direction of the frame body 20 is parallel to the conveying direction of the conveyor belt. Two or three heightening members 30 can be snapped onto each side of the length of the frame body 20. The specific number of heightening members 30 can be adjusted according to the length of the frame body 20 to ensure that the heightening members 30 can stably increase the height of the photovoltaic module when the production line is adjusted.

[0063] In one embodiment, the frame height of the standard photovoltaic module is 30mm, the frame height of the required non-standard photovoltaic module is 35mm, and the height of the corresponding height plate 31 is 5mm; the minimum distance between the first sidewall 32 and the second sidewall 33 has two types, which are 33mm or 28mm, and this direction is the width direction of the height plate 31; the length dimension of the height plate 31 is 450mm, and the dimension of the corresponding first gap is less than 450mm.

[0064] A photovoltaic module, including a frame, is used for the calibration of a photovoltaic module production line. Thus, during the calibration of the production line, photovoltaic modules with heightening components 30 need to circulate on the line to facilitate the calibration of the entire line and subsequent mass production of photovoltaic modules.

[0065] Therefore, it needs to be clarified that the photovoltaic modules with the frame of this solution are for testing and calibration purposes only, and are not photovoltaic modules for shipment. After the photovoltaic modules of this solution are used to calibrate the production line, the production line is then used to manufacture the corresponding photovoltaic modules that can be shipped.

[0066] In the embodiments, Figure 4 The image shows a cross-sectional view of a photovoltaic module with the heightening member 30 installed along its length. A, B, and C are the A, B, and C sides of the photovoltaic module frame, respectively. The heightening member 30 is installed on the lower side of the frame body 20. The first sidewall 32 and the second sidewall 33 of the heightening member 30 abut and press against the B side of the photovoltaic module. The heightening plate 31 of the heightening member 30 is used to abut against the C side. After installation, the heightening member 30 is used to increase the size of the B side.

[0067] In the description of this utility model, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "bottom," and "inner," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. The embodiments described above are merely illustrative of several implementations of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A frame for a photovoltaic module, characterized in that, The frame, used for calibration in photovoltaic module production lines, includes: The frame body (20) includes a lower support plate (21) arranged along a first direction, and an outer side plate (22) and an inner side plate (23) connected to the lower support plate (21) and arranged opposite to each other along a second direction. The outer side plate (22) has a first height along the second direction, and the first direction is perpendicular to the second direction. The heightening component (30) includes a heightening plate (31) having a second height along the second direction; The heightening plate (31) is combined with the lower support plate (21) of the frame body (20), and the height of the frame is the sum of the first height and the second height.

2. The frame of the photovoltaic module according to claim 1, characterized in that, The heightening member (30) also includes a first sidewall (32) and a second sidewall (33) disposed opposite to each other. The first sidewall (32) and the second sidewall (33) both extend in a direction perpendicular to the heightening plate (31) and are respectively connected to both ends of the heightening plate (31). The first sidewall (32), the second sidewall (33) and the heightening plate (31) together form a U-shaped groove structure. When the heightening plate (31) is combined with the lower support plate (21) of the frame body (20), the lower end of the frame body is located in the U-shaped groove, and the first side wall (32) and the second side wall (33) are in contact with the outer side plate (22) and the inner side plate (23) respectively.

3. The frame of the photovoltaic module according to claim 2, characterized in that, The lower end of the frame body (20) is interference-fitted with the U-shaped groove.

4. The frame of the photovoltaic module according to claim 3, characterized in that, The side of the first sidewall (32) facing the second sidewall (33) is a plane, and the side of the second sidewall (33) facing the first sidewall (32) is a convex arc surface; the heightening plate (31) has two planes on both sides in the second direction and they are parallel to each other.

5. The frame of the photovoltaic module according to claim 4, characterized in that, The heightening component (30) includes a first material reduction section (34) and a second material reduction section (35). The first material reduction section (34) and the second material reduction section (35) are both opened on the side of the second sidewall (33) facing away from the first sidewall (32); Along the second direction, the first material reduction part (34) and the second material reduction part (35) are respectively opened at both ends of the second sidewall (33), so that the middle part of the second sidewall (33) facing away from the first sidewall (32) forms an outward protrusion (36), and the arc surfaces on both sides of the second sidewall (33) and the first protrusion (36) are arranged opposite to each other in the second direction.

6. The frame of the photovoltaic module according to any one of claims 2-4, characterized in that, The U-shaped groove includes: The bottom surface (37) abuts against the lower support plate (21); Multiple abutting teeth are provided at the bottom of the U-shaped groove, and the tops of the multiple abutting teeth are coplanar and form the abutting bottom surface (37). The abutting bottom surface (37) constitutes the abutting plane between the raised plate (31) and the frame body (20) in the second direction.

7. The frame of the photovoltaic module according to claim 6, characterized in that, The heightening component (30) includes: Disassembly gap groove (38) is formed on the abutting bottom surface (37).

8. The frame of the photovoltaic module according to claim 6, characterized in that, The abutting teeth are dot-shaped protrusions, and the heightening part (30) is a plastic part.

9. The frame of the photovoltaic module according to claim 1, characterized in that, The photovoltaic module production line includes at least two conveyor belts. In any two adjacent conveyor belts, the end of the previous conveyor belt is adjacent to the beginning of the next conveyor belt and has a first gap. The heightening plate (31) is located on the bottom surface of the photovoltaic module, and the size of the heightening plate (31) along the conveyor belt transport direction is larger than the first gap.

10. A photovoltaic module, characterized in that, Including the frame of the photovoltaic module as described in any one of claims 1-9, applied to the calibration of the photovoltaic module production line.

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