A combined photovoltaic module frame and photovoltaic module

Abstract

This utility model belongs to the field of photovoltaic module technology, specifically a combined photovoltaic module frame and photovoltaic module, including a first frame and a second frame. The end of the first frame forms a first connecting structure, which includes a first mounting groove, and a limiting boss is provided on the bottom wall of the first mounting groove. The end of the second frame forms a second connecting structure, which includes a first plug-in plate, and a first limiting hole is provided on the first plug-in plate. When the first frame and the second frame are connected, the limiting boss is engaged in the first limiting hole, so that the first frame and the second frame are assembled as a whole. This application forms a two-stage limiting fixing structure through the cooperation of the first limiting hole and the limiting boss, and the cooperation of the second limiting hole and the lifting column, which improves the reliability of the connection between the first frame and the second frame. Moreover, the installation process only requires aligning the two and pushing the second frame to complete the installation, which is convenient and quick.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic module technology, specifically a combined photovoltaic module frame and photovoltaic module. Background Technology

[0002] Traditional photovoltaic module frames typically use a split corner bracket connection scheme, whose technical architecture consists of four independent aluminum profile frame strips, four corner brackets, and multiple stainless steel bolts and matching nuts. This traditional solution has the following technical drawbacks:

[0003] (i) Complex assembly. The corner bracket connection method requires manual assembly of the corner brackets and tightening of bolts, which takes about 15 to 20 minutes per unit. Based on a capacity of 1GW (about 2 million modules), the annual installation time exceeds 500,000 hours.

[0004] (ii) There are drawbacks in structural mechanics and reliability. For example, stress concentration: stress concentration points are formed at the corner bracket connection due to abrupt changes in cross-section. In wind load tests, more than 50% of failure cases occurred in the corner bracket area (such as cracking and loose bolts). Another example is poor corrosion resistance: the dissimilar metal contact between the corner bracket and the aluminum frame (such as cast aluminum corner bracket and 6063-T5 aluminum alloy) is prone to electrochemical corrosion in humid environments. After 5 years, the corrosion rate at the connection of coastal power stations is as high as 30%.

[0005] (iii) Limitations in application scenarios. In order to compensate for the connection strength, the traditional frame needs to increase the thickness of the profile wall (usually 1.8-2.5mm), resulting in the weight of a single module frame reaching 4.2-4.5kg, which restricts the lightweight requirements of BIPV (Building Integrated Photovoltaics).

[0006] (iv) Poor installation compatibility. The protruding corner bracket structure increases the thickness of the component (usually ≥40mm), making it difficult to adapt the component to ultra-thin curtain walls or curved building installations.

[0007] Based on the above problems, providing a modular photovoltaic module frame that does not require corner brackets is an urgent issue to be addressed. Utility Model Content

[0008] To address the problems mentioned above, this utility model provides a modular photovoltaic module frame and photovoltaic module, which eliminates the need for corner brackets and allows assembly to be completed using only the first and second frames.

[0009] The first objective of this invention is to provide a modular photovoltaic module frame, comprising:

[0010] A first frame, at least one end of the first frame forms a first connecting structure, the first connecting structure includes a first mounting groove, and a limiting boss is provided on the bottom wall of the first mounting groove;

[0011] The second frame has at least one end forming a second connection structure, which includes a first plug-in plate and a first limiting hole.

[0012] When the first frame and the second frame are connected, the limiting boss is fitted into the first limiting hole, so that the first frame and the second frame are assembled into one piece.

[0013] Furthermore, the first connection structure also includes a second mounting groove, which is located on one side of the first mounting groove along the height direction of the first frame. A limiting component is provided on the top or bottom wall of the second mounting groove, and the limiting component includes a lifting column that can move up and down.

[0014] The second connection structure also includes a second plug-in plate corresponding to the second mounting slot, and a second limiting hole is provided on the second plug-in plate;

[0015] When the second connector plate is inserted into the second mounting slot, the second limiting hole corresponds to the position of the lifting column. Adjusting the limiting component moves the lifting column to be inserted into the second limiting hole.

[0016] Furthermore, the lifting column is a lifting stud, and the second limiting hole is a threaded hole adapted to the lifting stud.

[0017] Furthermore, the upper surface of the limiting boss is a mounting slope, which is inclined downwards towards the opening of the first mounting groove.

[0018] Furthermore, the height of the first mounting slot is adapted to the height of the first plug-in plate.

[0019] Furthermore, the first limiting hole is provided near the end of the first plug-in plate, and the second limiting hole is provided near the end of the second plug-in plate.

[0020] Furthermore, the limiting assembly also includes a rotary pusher and a sleeve;

[0021] The rotary pusher includes an operating part and a rotating sleeve connected to the operating part. The side wall of the rotating sleeve is provided with a lifting groove extending along its height direction. The lifting column is located inside the rotating sleeve, and the side wall of the lifting column is provided with a guide rod located inside the lifting groove.

[0022] The sleeve is fitted around the outer circumference of the rotating sleeve. The inner wall of the sleeve is provided with a spiral groove. The guide rod extends out from the lifting groove and is inserted into the spiral groove.

[0023] Furthermore, the upper and lower ends of the lifting groove are respectively provided with a first limiting transverse groove and a second limiting transverse groove.

[0024] Furthermore, the first frame also includes a laminate mounting cavity located above the first mounting groove, and foam cotton is pasted on the vertical sidewall of the laminate mounting cavity.

[0025] The second objective of this invention is to provide a photovoltaic module, including a laminate, which is installed within the frame of any of the above-described combined photovoltaic modules.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0027] (1) This application achieves a corner-free mechanical connection between the first and second frames by providing a first connecting structure at at least one end of the first frame and a second connecting structure at at least one end of the second frame. The first connecting structure is integrated on the first frame and the second connecting structure is integrated on the second frame, thereby reducing the number of assembly units by approximately 75% and significantly reducing installation time and labor costs. At the same time, the limiting boss and the first limiting hole are interference fit or tight fit, which restricts the relative movement of the first and second frames. Since the materials used for the first and second frames are usually the same, the chemical reaction caused by the contact of dissimilar metals is eliminated, improving the corrosion resistance of the photovoltaic module frame. Meanwhile, since the traditional corner brackets are eliminated, the wall thickness of the first and second frames can be appropriately reduced to achieve the goal of lightweight BIPV, which can be adapted to ultra-thin curtain walls or curved building installations, resulting in better installation compatibility.

[0028] (2) When installing the combined photovoltaic module frame of this application, the first plug-in plate is inserted into the first mounting groove, and the second plug-in plate is inserted into the second mounting groove. After the first plug-in plate is forcefully inserted into the groove, the limiting boss is pushed into the first limiting hole, which initially completes the positioning connection between the second frame and the first frame. Then, the limiting component is operated to move the lifting column into the second limiting hole, which completes the secondary fixing of the first frame and the second frame. The secondary limiting fixing structure improves the reliability of the connection between the first frame and the second frame. Moreover, the installation process only requires aligning the two and forcefully pushing the second frame to complete the installation, which is convenient and quick. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is an overall structural diagram of a combined photovoltaic module frame provided in an embodiment of this application;

[0031] Figure 2 A perspective view of the first frame of a combined photovoltaic module frame provided in an embodiment of this application;

[0032] Figure 3This is a first frame cross-sectional view of a combined photovoltaic module frame provided in an embodiment of this application;

[0033] Figure 4 A perspective view of the second frame of a combined photovoltaic module frame provided in an embodiment of this application;

[0034] Figure 5 This is a schematic diagram of a limiting component structure for a combined photovoltaic module frame provided in an embodiment of this application;

[0035] Figure 6 This is a schematic diagram of the limiting component structure of a combined photovoltaic module frame provided in another embodiment of this application;

[0036] Figure 7 This is a schematic diagram of a photovoltaic module structure provided in an embodiment of this application;

[0037] Wherein, 1-first frame, 11-first mounting groove, 12-limiting boss, 121-mounting inclined surface, 13-second mounting groove, 14-laminated component mounting cavity, 15-foam cotton, 2-second frame, 21-first plug-in plate, 22-first limiting hole, 23-second plug-in plate, 24-second limiting hole, 3-limiting component, 31-lifting column, 311-guide rod, 32-rotating pusher, 321-operating part, 322-rotating sleeve, 323-lifting groove, 324-first limiting transverse groove, 325-second limiting transverse groove, 33-sleeve, 331-spiral groove, 34-fixed sleeve, 35-spring, 4-laminated component. Detailed Implementation

[0038] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] The following is in conjunction with the appendix Figure 1 To be continued Figure 7 The present invention will be described in detail with specific embodiments.

[0040] like Figures 1 to 7As shown, this utility model provides a combined photovoltaic module frame, including a first frame 1 and a second frame 2, wherein: at least one end of the first frame 1 forms a first connecting structure, the first connecting structure including a first mounting groove 11, and a limiting boss 12 is provided on the bottom wall of the first mounting groove 11; at least one end of the second frame 2 forms a second connecting structure, the second connecting structure including a first plug-in plate 21, and a first limiting hole 22 is provided on the first plug-in plate 21. The first limiting hole 22 can be a through hole or a blind hole. When the first limiting hole 22 is a blind hole, it is necessary to ensure that the depth of the blind hole can accommodate the limiting boss 12. When the first frame 1 and the second frame 2 are connected, the first plug-in plate 21 is inserted into the first mounting groove 11, and when the limiting boss 12 is engaged in the first limiting hole 22, it indicates that the first plug-in plate 21 is in place. At this time, the first frame 1 and the second frame 2 are assembled into one unit. This application does not limit the shape of the limiting boss 12. For example, the cross-section of the limiting boss 12 can be a triangular, circular, rectangular, square or other boss structure, and the first limiting hole 22 is a shape that matches the limiting boss 12, so that when there is only the first-level limiting fixing structure of the limiting boss 12 and the first limiting hole 22, there will be no relative rotation. It should be noted that in this application, at least one end of the first border 1 forms a first connecting structure and at least one end of the second border 2 forms a second connecting structure, which includes various cases, such as both ends of the first border 1 forming a first connecting structure and both ends of the second border 2 forming a second connecting structure; or one end of the first border 1 forming a first connecting structure and the other end forming a second connecting structure, and one end of the second border 2 forming a second connecting structure and the other end forming a first connecting structure; that is to say, as long as the first border 1 and the second border 2 can be interconnected through the first connecting structure and the second connecting structure, they all fall within the protection scope of this application.

[0041] It is known that photovoltaic module frames are typically assembled into a rectangular structure by two first frame 1s and two second frame 2s. When the module is rectangular, one of the first frame 1s and the second frame 2 is a long frame, and the other is a short frame. In this embodiment, the first frame 1 is a long frame and the second frame 2 is a short frame, as an example, for detailed description. In a preferred embodiment, a first connecting structure is provided at both ends of the first frame 1, and a second connecting structure is provided at both ends of the second frame 2. Through the above arrangement, a mechanical interlocking connection without corner brackets is achieved between the first frame 1s and the second frame 2, reducing the number of parts in a single module frame from 16-20 in the traditional solution to 4 profiles, reducing the assembly units by about 75%, and significantly reducing installation time and labor costs. It should be further explained that the 16-20 parts of the conventional solution described above include, but are not limited to, 4 independent aluminum profile frame strips, 4 corner brackets, and multiple stainless steel bolts and matching nuts. In contrast, this solution reduces the parts to 4 profiles, each profile including a first connecting structure and / or a second connecting structure fixed thereon. In other words, the parts defined in this application refer to components that exist independently and are not connected to any other structure before assembly.

[0042] In this application, the limiting boss 12 and the first limiting hole 22 are tightly fitted or interference-fitted to restrict the relative movement of the first frame 1 and the second frame 2, enabling the frame installation to be completed solely using the limiting boss 12 and the first limiting hole 22. Furthermore, since the first frame 1 and the second frame 2 are made of the same material, connecting them as a single unit eliminates the potential chemical reaction that might occur when dissimilar metals come into contact, thus improving the corrosion resistance of the photovoltaic module frame. Simultaneously, by eliminating traditional corner bracket parts, the overall thickness of the first frame 1 and the second frame 2 can be appropriately reduced, achieving the lightweight goal of BIPV while meeting the installation requirements of ultra-thin curtain walls or curved buildings, expanding its application scenarios and installation compatibility.

[0043] In some embodiments, see Figure 2 and Figure 3The first connecting structure also includes a second mounting groove 13, which is located on one side of the first mounting groove 11 along the height direction of the first frame 1. The height direction of the first frame 1 refers to the thickness direction of the first frame 1 when it is placed on a horizontal surface, i.e., the vertical direction. In other words, the second mounting groove 13 is located above or below the first mounting groove 11, and a limiting component 3 is provided on the top or bottom wall of the second mounting groove 13. The limiting component 3 includes a lifting column 31 that can move up and down. When the second frame 2 is not installed on the first frame 1, the lifting column 31 rises to the highest or falls to the lowest position to ensure that there is no interference with the insertion process of the second plug-in plate 23. This application does not limit the specific structure of the limiting component 3, as long as it can achieve... The lifting column 31 can have either a lifting function or a lifting + rotating function; those skilled in the art can design it with reference to existing technology. The second connecting structure also includes a second insertion plate 23 located corresponding to the second mounting groove 13. The first insertion plate 21 and the second insertion plate 23 are spaced apart in the height direction. The second insertion plate 23 has a second limiting hole 24, which is a through hole. After the first insertion plate 21 is inserted into the first mounting groove 11 and the second insertion plate 23 is inserted into the second mounting groove 13, the second limiting hole 24 corresponds to the position of the lifting column 31. At this time, the limiting component 3 can be manually adjusted to move the lifting column 31 downwards or upwards into the second limiting hole 24, completing the secondary fixation. In short, this application does not limit the vertical position relationship between the second mounting groove 13 and the first mounting groove 11, nor does it limit the limiting component 3 to be located on the top or bottom wall of the second mounting groove 13, as long as the lifting column 31 of the limiting component 3 can be moved and inserted into the second limiting hole 24. Figures 1 to 6 The following example illustrates the situation where the second mounting slot 13 is located below the first mounting slot 11, the second plug-in plate 23 is located below the first plug-in plate 21, and the limiting component 3 is fixedly installed on the bottom wall of the second mounting slot 13.

[0044] It should be noted that after the second plug-in plate 23 is inserted into the second mounting groove 13, there is a certain gap between the second plug-in plate 23 and the top and bottom walls of the second mounting groove 13. This gap allows the lifting column 31 to extend from the upper or lower surface of the second plug-in plate 23. Furthermore, the second limiting hole 24 and the lifting column 31 are tightly fitted or interference-fitted, ensuring the stability and reliability of the connection between the first frame 1 and the second frame 2. Of course, in other embodiments, the cross-section of the second limiting hole 24 can be a triangular, rectangular, square, circular, or other cylindrical structure, and the lifting column 31 has the same shape as the second limiting hole 24, ensuring that the limiting requirements are met.

[0045] During installation, the first connector plate 21 is inserted into the first mounting slot 11, and the second connector plate 23 is inserted into the second mounting slot 13. After the first connector plate 21 and the second connector plate 23 are forcefully inserted into their positions, the limiting boss 12 is pushed into the first limiting hole 22, initially completing the positioning connection between the second frame 2 and the first frame 1. Simultaneously, the second limiting hole 24 is located directly above the lifting column 31. Then, the limiting component 3 is operated to raise the lifting column 31 and insert it into the second limiting hole 24, completing the secondary fixation of the first frame 1 and the second frame 2. This application forms a two-stage limiting fixing structure through the cooperation of the first limiting hole 22 and the limiting boss 12, and the cooperation of the second limiting hole 24 and the lifting column 31, improving the reliability of the connection between the first frame 1 and the second frame 2. Furthermore, the installation process only requires aligning the two and forcefully pushing the second frame 2 to complete the installation, making it convenient and quick. This application does not limit the specific positions of the first limiting hole 22 and the second limiting hole 24; those skilled in the art can design specific positions according to actual needs and the ease of installation.

[0046] In the preferred embodiment, see Figure 3 The lifting column 31 is a lifting stud, and the second limiting hole 24 is a threaded hole adapted to the lifting stud. The lifting column 31 has both lifting and rotation functions. Through the interference fit between the lifting stud and the threaded hole, a continuous spiral bearing surface is formed, which improves the shear strength and anti-loosening performance and achieves a more reliable connection.

[0047] In some embodiments, see Figure 2 and Figure 3 The upper surface of the limiting boss 12 is a mounting slope 121. The mounting slope 121 is inclined upward along the mounting direction of the second frame 2, that is, the mounting slope 121 is inclined downward toward the opening of the first mounting groove 11. The opening described here is as follows: Figure 3 and Figure 7 The first mounting groove 11 shown has an opening on the right side. When the first plug-in plate 21 is inserted into the first mounting groove 11, the mounting slope 121 contacts the bottom edge of the first plug-in plate 21, generating a guiding effect, reducing insertion resistance, and achieving rapid assembly. It should be noted that in this application, the mounting direction of the second frame 2 is consistent with the length direction of the second frame 2, that is, the mounting direction of the second frame 2 is perpendicular to the first frame 1. During installation, the first frame 1 can be kept stationary while the second frame 2 is installed on the first frame 1, or the second frame 2 can be kept stationary while the first frame 1 is installed on the second frame 2. The inclined direction of the mounting slope 121 mentioned above refers to the direction in which the first frame 1 remains stationary while the second frame 2 moves closer to the first frame 1.

[0048] Specifically, the height of the first mounting groove 11 is adapted to the height of the first plug-in plate 21. This ensures that the upper and lower surfaces of the first plug-in plate 21 are approximately in surface-to-surface contact with the top and bottom walls of the first mounting groove 11, eliminating relative movement between the first frame 1 and the second frame 2 in the vertical direction. Even with only the first-level limiting structure of the limiting boss 12 and the first limiting hole 22, the stability of the connection between the first frame 1 and the second frame 2 can still be guaranteed. Of course, in other embodiments, there may be a slight gap between the first plug-in plate 21 and the top or bottom wall of the first mounting groove 11, as long as the first frame 1 and the second frame 2 are securely installed and will not detach.

[0049] For details, please refer to Figure 4 The first limiting hole 22 is located near the edge of the first plug-in plate 21, the limiting boss 12 is located near the interior of the first mounting groove 11, and the second limiting hole 24 is located near the edge of the second plug-in plate 23. Normally, when the second frame 2 is installed, it is inserted inwards along a direction perpendicular to the first frame 1 (i.e., the insertion direction of the second frame 2 is the same as the length direction of the second frame 2). Both the first limiting hole 22 and the second limiting hole 24 are located near the edge of the second frame 2 along its length direction, ensuring that the limiting boss 12 contacts the first limiting hole 22 when almost fully inserted, thus completing the locking mechanism. It can be understood that since the first frame 1 and the second frame 2 of this application are usually made of aluminum, the first and second connecting structures will undergo slight deformation during installation, ensuring that the limiting boss 12 can be locked into the first limiting hole 22. This application does not limit the height of the limiting boss 12; it only needs to ensure that it can be locked into the first limiting hole 22 under a certain external force. In a preferred embodiment, the first limiting hole 22 and the second limiting hole 24 are staggered to reduce stress concentration at the connection and improve the service life of the component.

[0050] In some embodiments, see Figure 5The limiting component 3 also includes a rotating pusher 32 and a sleeve 33; the rotating pusher 32 includes an operating part 321 and a rotating sleeve 322 connected to the operating part 321. The side wall of the rotating sleeve 322 is provided with a lifting groove 323 extending in the vertical direction. The lifting column 31 is located inside the rotating sleeve 322, and the side wall of the lifting column 31 is provided with a guide rod 311 located in the lifting groove 323; the sleeve 33 is sleeved on the outer periphery of the rotating sleeve 322, and the inner side wall of the sleeve 33 is provided with a spiral groove 331. The guide rod 311 extends out from the lifting groove 323 and is inserted into the spiral groove 331. In use, the operating part 321 located at the bottom is rotated. The rotation of the operating part 321 drives the rotating sleeve 322 to rotate. The guide rod 311 is set in the lifting groove 323 and the spiral groove 331, so that the guide rod 311 drives the lifting column 31 to move vertically and rotate. When the lifting column 31 is a lifting stud and the second limiting hole 24 is a threaded hole, the lifting column 31 is threaded into the threaded hole, thus realizing the limiting function of the lifting column 31. When the lifting column 31 is a smooth column and the second limiting hole 24 is a through hole, the upper and lower ends of the lifting groove 323 are respectively provided with a first limiting transverse groove 324 and a second limiting transverse groove 325. When the guide rod 311 is in the first limiting transverse groove 324, the lifting column 31 rises to the highest position. When the guide rod 311 is in the second limiting transverse groove 325, the lifting column 31 falls to the lowest position, thereby realizing the limiting of the lifting column 31.

[0051] In other embodiments, see Figure 6 The limiting component 3 also includes a fixed sleeve 34 and a spring 35. The lifting column 31 is disposed inside the fixed sleeve 34, and the spring 35 is disposed between the bottom of the lifting column 31 and the bottom of the fixed sleeve 34. The fixed sleeve 34 is provided with a vertically extending lifting groove 323. A guide rod 311 located in the lifting groove 323 is provided on the side wall of the lifting column 31. The part of the guide rod 311 extending out of the lifting groove 323 is the operating end. The upper and lower ends of the lifting groove 323 are respectively provided with a first limiting transverse groove 324 and a second limiting groove 324. When the guide rod 311 is located within the first limiting transverse groove 324 and the second limiting transverse groove 325, the spring 35 is in a compressed state. When the second limiting hole 24 is directly above the lifting column 31, the guide rod 311 is moved from the second limiting transverse groove 325 into the lifting groove 323. Under the action of the spring 35, the lifting column 31 rises into the second limiting hole 24. Then, the guide rod 311 is manually moved from the lifting groove 323 into the first limiting transverse groove 324, thus completing the limiting of the lifting column 31. It should be noted that in this embodiment, the lifting column 31 is a light column, and the second limiting hole 24 is a through hole. Of course, the limiting component 3 of this application can also be other structures, which will not be listed here. Those skilled in the art can design according to actual needs by referring to the above principles.

[0052] For further details, please refer to [link / reference]. Figures 1 to 3The first frame 1 also includes a laminate mounting cavity 14 located above the first mounting groove 11. Foam cotton 15 is adhered to the vertical sidewall of the laminate mounting cavity 14. During laminate installation, a compression-adaptive sealing layer is formed between the foam cotton 15 and the laminate, improving the sealing effect. The second frame of this application eliminates the traditional C-side, replacing it with a structure design without an A-side, while the first frame has an A-side design. When the laminate is assembled inside the photovoltaic module frame, the above structure facilitates the installation of the laminate.

[0053] like Figure 7 As shown, this utility model also provides a photovoltaic module, including a laminate 4, which is installed within the frame of any of the above-described combined photovoltaic module. Since the photovoltaic module of this application adopts all the technical solutions of all embodiments of the above-described combined photovoltaic module frame, it at least possesses all the beneficial effects brought about by the technical solutions of the above-described combined photovoltaic module frame embodiments, which will not be elaborated further here.

[0054] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A modular photovoltaic module frame, characterized in that, include: A first frame, at least one end of the first frame forming a first connecting structure, the first connecting structure including a first mounting groove, and a limiting boss provided on the bottom wall of the first mounting groove; The second frame has at least one end forming a second connection structure, the second connection structure including a first plug-in plate, and a first limiting hole is provided on the first plug-in plate; When the first frame is connected to the second frame, the limiting boss is engaged in the first limiting hole, so that the first frame and the second frame are assembled into one piece.

2. The combined photovoltaic module frame according to claim 1, characterized in that, The first connection structure further includes a second mounting groove, which is located on one side of the first mounting groove along the height direction of the first frame. A limiting component is provided on the top or bottom wall of the second mounting groove, and the limiting component includes a lifting column that can move up and down. The second connection structure also includes a second plug-in plate corresponding to the second mounting slot, and the second plug-in plate is provided with a second limiting hole; When the second plug plate is inserted into the second mounting slot, the second limiting hole corresponds to the position of the lifting column. Adjusting the limiting component causes the lifting column to move and be inserted into the second limiting hole.

3. The combined photovoltaic module frame according to claim 2, characterized in that, The lifting column is a lifting stud, and the second limiting hole is a threaded hole adapted to the lifting stud.

4. The combined photovoltaic module frame according to claim 1, characterized in that, The upper surface of the limiting boss is a mounting slope, which is inclined downward toward the opening of the first mounting groove.

5. The combined photovoltaic module frame according to claim 1, characterized in that, The height of the first mounting slot is adapted to the height of the first plug-in plate.

6. The combined photovoltaic module frame according to claim 2, characterized in that, The first limiting hole is located near the end of the first plug-in plate, and the second limiting hole is located near the end of the second plug-in plate.

7. The combined photovoltaic module frame according to claim 2, characterized in that, The limiting assembly also includes a rotary pusher and a sleeve; The rotating pusher includes an operating part and a rotating sleeve connected to the operating part. The side wall of the rotating sleeve is provided with a lifting groove extending along its height direction. The lifting column is located inside the rotating sleeve, and the side wall of the lifting column is provided with a guide rod located inside the lifting groove. The sleeve is fitted around the outer periphery of the rotating sleeve, and a spiral groove is provided on the inner side wall of the sleeve. The guide rod extends out from the lifting groove and is inserted into the spiral groove.

8. The combined photovoltaic module frame according to claim 7, characterized in that, The upper and lower ends of the lifting groove are respectively provided with a first limiting horizontal groove and a second limiting horizontal groove.

9. The combined photovoltaic module frame according to claim 1, characterized in that, The first frame also includes a laminate mounting cavity located above the first mounting groove, and foam cotton is pasted on the vertical sidewall of the laminate mounting cavity.

10. A photovoltaic module, characterized in that, It includes a laminate, which is installed within the frame of the combined photovoltaic module as described in any one of claims 1-9.

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