Photovoltaic system

Abstract

The utility model discloses a photovoltaic system, which comprises a purline and a photovoltaic assembly, the purline comprises a purline main body, a top plate of the purline main body is provided with a first matching part, a frame of the photovoltaic assembly is provided with a second matching part, and the first matching part and the second matching part are matched to realize limiting in a first direction; the purline body is provided with a limiting plate, the limiting plate makes contact with the frame to achieve limiting in the second direction, and the first direction is perpendicular to the second direction. In the embodiment of the utility model, the frame is limited in two directions through the first matching part and the limiting plate in the purline, so that the pre-positioning of the photovoltaic module is quickly realized, the accuracy of the position of the photovoltaic module relative to the purline is ensured, the purline or the photovoltaic module does not need to be repeatedly adjusted in the installation process of the photovoltaic module, and the installation efficiency is improved. Therefore, the installation process is simplified, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a photovoltaic system. Background Art

[0002] The photovoltaic system includes purlins and photovoltaic modules. The photovoltaic modules include frames. The purlins support and connect the frames. There are usually two ways to install photovoltaic modules: bolt connection and block connection.

[0003] In the bolt connection method, bolt holes are opened on the frame. When installing the photovoltaic module, the bolt holes on the purlin must be aligned with the bolt holes on the frame, and then the two must be connected with bolts, and the bolts must be tightened with separate nuts. In the block connection method, bolt holes are opened on the block. When installing the photovoltaic module, the block must be pressed on the upper surface of the frame, and then the bolt holes on the block must be aligned with the bolt holes on the frame, and then the two must be connected with bolts, and the bolts must be tightened with separate nuts.

[0004] In all the above methods, it is difficult to align the bolt holes. The installation process of the purlin is completed manually at the project site, and installation errors are inevitable in the process. The existence of installation errors will cause the bolt holes on the purlin and the bolt holes on the frame to be misaligned and unable to align. At this time, it is often necessary to repeatedly adjust the purlin or photovoltaic modules, or to open holes on the purlin, resulting in low installation efficiency. Utility Model Content

[0005] The utility model provides a photovoltaic system, aiming to at least solve the technical problem of low installation efficiency of photovoltaic components in the prior art.

[0006] In a first aspect, an embodiment of the utility model provides a photovoltaic system, comprising a purlin and a photovoltaic module, wherein the purlin comprises a purlin body, a first matching portion is arranged on a top plate of the purlin body, a second matching portion is arranged on a frame of the photovoltaic module, and the first matching portion cooperates with the second matching portion to achieve position limiting in a first direction;

[0007] The purlin body is provided with a limiting plate, and the limiting plate contacts the frame to achieve limiting in a second direction, wherein the first direction is perpendicular to the second direction.

[0008] Optionally, the first matching portion is a second protrusion, and the second matching portion is a limiting hole; or, the first matching portion is a limiting hole, and the second matching portion is a second protrusion.

[0009] Optionally, the limiting plate has a limiting portion, the frame has a frame bottom plate and a side bending plate connected to the frame bottom plate, and the limiting portion contacts the side bending plate to achieve limiting in a third direction, wherein the third direction is perpendicular to the first direction and perpendicular to the second direction.

[0010] Optionally, the side bending plate extends in a direction away from the purlin.

[0011] Optionally, the limiting portion is a first protrusion.

[0012] Optionally, a protrusion height of the first protrusion is less than or equal to 4 mm, and / or the first protrusion has a side guide surface, and the side guide surface is a curved surface or an inclined surface.

[0013] Optionally, the first direction is the width direction of the purlin, and along the second direction, there is a first gap between the second protrusion and the limiting hole;

[0014] Along the first direction, a second gap is provided between one end of the second protrusion and the limiting hole.

[0015] Optionally, the shape of the orthographic projection of the second protrusion on the top plate and the shape of the limiting hole are both D-shaped, triangular or rectangular.

[0016] Optionally, the limiting plate comprises a limiting plate body, and an end of the limiting plate body away from the top plate has a guide plate, and the guide plate is arranged at an angle to the limiting plate body.

[0017] Optionally, a mounting hole is provided on the top plate.

[0018] Optionally, the top plate includes a first flange and a second flange that are spaced apart from each other, the first matching portion is disposed on the first flange, the limiting plate is formed by bending the first flange, and the mounting hole is located on the second flange.

[0019] Optionally, the purlin body is C-shaped, including the top plate, support plate, and bottom plate connected in sequence.

[0020] Optionally, the frame bottom plate has pre-installed nuts.

[0021] In the embodiment of the utility model, the first matching part and the limiting plate in the purlin are used to limit the frame in two directions, thereby quickly realizing the pre-positioning of the photovoltaic component and ensuring the accuracy of the position of the photovoltaic component relative to the purlin. During the installation of the photovoltaic component, there is no need to repeatedly adjust the purlin or the photovoltaic component, thereby simplifying the installation process and improving the installation efficiency. In addition, when the first matching part cooperates with the second matching part, it is only necessary to ensure that the two cooperate in the first direction. The alignment requirements of the first matching part and the second matching part are low, the alignment is simple, and rapid alignment can be achieved, thereby improving the installation efficiency.

[0022] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a partial structure of a purlin in a photovoltaic system provided by an embodiment of the utility model Figure 1 ;

[0024] Figure 2 A schematic diagram of a partial structure of a purlin in a photovoltaic system provided by an embodiment of the utility model Figure 2 ;

[0025] Figure 3 A schematic diagram of the side view structure of a purlin in a photovoltaic system provided by an embodiment of the utility model;

[0026] Figure 4 A schematic diagram of a structure of a purlin and a frame provided in an embodiment of the utility model Figure 1 ;

[0027] Figure 5 A schematic diagram of a structure of a purlin and a frame provided in an embodiment of the utility model Figure 2 ;

[0028] Figure 6 A schematic diagram of the structure of a photovoltaic module in a photovoltaic system provided by an embodiment of the utility model;

[0029] Figure 7 A schematic diagram of the structure of a frame in a photovoltaic system provided by an embodiment of the utility model;

[0030] Figure 8 A schematic diagram of the structure of another purlin in a photovoltaic system provided by an embodiment of the utility model;

[0031] Fig. 9A schematic diagram of the structure of another frame in a photovoltaic system provided by an embodiment of the utility model;

[0032] Fig.10 A schematic diagram of the structure of another purlin and another frame provided in an embodiment of the utility model;

[0033] Fig.11 A schematic diagram of the structure of another purlin in a photovoltaic system provided by an embodiment of the utility model;

[0034] Fig.12 A schematic diagram of the structure of another frame in a photovoltaic system provided by an embodiment of the utility model;

[0035] Fig.13 A schematic structural diagram of another purlin and another frame provided in an embodiment of the utility model.

[0036] Reference numerals:

[0037] 10-purlin, 11-purlin body, 111-top plate, 1111-first flange, 1112-second flange, 1113-mounting hole, 112-bottom plate, 113-support plate, 12-second protrusion, 121-side limiting surface, 13-limiting plate, 131-limiting plate body, 132-guide plate, 14-first protrusion, 141-side guide surface, 15-sprouting protrusion, 16-mushroom head protrusion, 20-photovoltaic module, 21-frame, 211-frame bottom plate, 2111-limiting hole, 2112-first positioning hole, 2113-second positioning hole, 212-side bending plate, 2121-top limiting surface, 30-threaded fastener, 40-pre-installed nut. DETAILED DESCRIPTION

[0038] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0039] In the first aspect, an embodiment of the utility model discloses a photovoltaic system, including a purlin 10 and a photovoltaic module 20, wherein the purlin 10 includes a purlin body 11, a first matching portion is provided on the top plate 111 of the purlin body 11, a second matching portion is provided on the frame 21 of the photovoltaic module, and the first matching portion cooperates with the second matching portion to achieve limiting in a first direction; a limiting plate 13 is provided on the purlin body 11, and the limiting plate 13 contacts with the frame 21 to achieve limiting in a second direction, wherein the first direction is perpendicular to the second direction.

[0040] Specifically, refer to Figure 2 and Figure 5 The cross-sectional shape of the purlin body 11 may be a "J" shape. Figure 8 and Fig.11 The cross-sectional shape of the purlin body 11 may also be a "C" shape. The purlin body 11 includes a top plate 111 and a bottom plate 112 disposed opposite to the top plate 111. The top plate 111 is provided with a mounting hole 1113.

[0041] Reference Figure 6 and Figure 7 The photovoltaic module 20 includes a photovoltaic laminate and a frame 21. The frame 21 includes a frame bottom plate 211 and a side bending plate 212 connected to the frame bottom plate 211. The frame bottom plate 211 has a pre-installed nut 40. The frame 21 can be made of steel, such as S550 steel. The frame 21 is specifically formed by integrally bending a steel plate, and the thickness of the steel plate can be 0.5 mm-3 mm, specifically, preferably 2 mm, 1.5 mm, 1.2 mm, 1 mm, 0.8 mm.

[0042] The first direction is the width direction of the purlin 10. Figure 4 In one embodiment, referring to Figures 1 to 5 , the first matching portion may be the second protrusion 12, and the second matching portion may be the limiting hole 2111. Figure 4 The limiting hole 2111 is provided on the frame bottom plate 211, and the limiting hole 2111 penetrates the frame bottom plate 211, and the shape of the limiting hole 2111 can be adapted to the shape of the second protrusion 12. The protrusion height of the second protrusion 12 is greater than the thickness of the frame bottom plate 211. The protrusion height of the second protrusion 12 can be 4mm-6mm, such as 4mm, 5mm, 6mm, etc. The shape of the orthographic projection of the second protrusion 12 on the top plate 111 can be set according to actual needs, such as D-shaped, rectangular, semicircular, etc.

[0043] Preferably, refer to Figure 1 and Figure 4 The second protrusion 12 has a side limiting surface 121, and the limiting hole 2111 has a limiting side wall. The side limiting surface 121 of the second protrusion 12 is used to contact the limiting side wall to achieve limiting in the first direction. After the photovoltaic module is installed, the side limiting surface 121 of the second protrusion 12 contacts the limiting side wall. The surface-to-surface matching method can ensure the limiting effect, and the side limiting surface 121 and the limiting side wall are both a small surface, which is conducive to the matching of the second protrusion 12 and the limiting hole 2111.

[0044] The two oppositely disposed frames 21 in a single photovoltaic module 20 are both provided with limiting holes 2111. A single frame 21 may be provided with two limiting holes 2111.

[0045] In other embodiments, the first matching portion may be a limiting hole, and in this case, the second matching portion is a second protrusion.

[0046] The mortise and tenon structure is a concave-convex connection method used by two components. The protruding part of the mortise and tenon structure is called the tenon, and the concave part is called the mortise. The tenon and the mortise bite together to play a connecting role. In the utility model, based on the principle of the mortise and tenon structure, the second protrusion 12 and the limiting hole 2111 are designed. The second protrusion 12 serves as the "tenon" in the mortise and tenon structure, and the limiting hole 2111 serves as the "mortise" in the mortise and tenon structure. When the photovoltaic component 20 is installed, the "tenon" is inserted into the "mortise" to realize the mortise and tenon structure connection, wherein the second protrusion 12 and the limiting hole 2111 cooperate to limit the displacement of the photovoltaic component in the first direction.

[0047] In another embodiment, referring to Figures 8 to 10 The first matching part can be a sprouting protrusion 15, the cross-section of which is in the shape of a circular ring, and the second matching part is a first positioning hole 2112 that matches the sprouting protrusion 15. The sprouting protrusion 15 matches the first positioning hole 2112 to achieve the pre-positioning of the photovoltaic module. When the photovoltaic module is installed, the sprouting protrusion 15 matches the first positioning hole 2112 first to achieve the pre-positioning of the photovoltaic module to ensure that the threaded hole on the pre-installed nut 40 is aligned with the installation hole 1113, and then fixed by the threaded fastener 30.

[0048] In another embodiment, referring to Figures 11 to 13 The first matching portion may be a mushroom head protrusion 16, and the second matching portion may be a second positioning hole 2113 matched with the mushroom head protrusion 16. The mushroom head protrusion 16 and the second positioning hole 2113 match to realize the pre-positioning of the photovoltaic module.

[0049] The second direction is the length direction of the purlin 10. Figure 4 The direction indicated by the arrow B in the figure. The limiting plate 13 is preferably in contact with the outer side of the frame 21 away from the photovoltaic laminate. The limiting plate 13 can be formed by bending the top plate 111, or it can be welded to the top plate 111 after being manufactured separately. In the embodiment of the utility model, the limiting of the frame 21 in two directions is achieved by the first matching portion in the purlin 10 and the limiting plate 13, so that the photovoltaic component 20 is quickly pre-positioned, and the accuracy of the position of the photovoltaic component 20 relative to the purlin 10 is ensured. During the installation of the photovoltaic component, there is no need to repeatedly adjust the purlin or the photovoltaic component, thereby simplifying the installation process and improving the installation efficiency; in addition, when the first matching portion cooperates with the second matching portion, it is only necessary to ensure that the two cooperate in the first direction. The alignment requirements of the first matching portion and the second matching portion are low, the alignment is simple, and rapid alignment can be achieved, thereby improving the installation efficiency.

[0050] After the photovoltaic assembly 20 is pre-positioned, the threaded hole on the pre-installed nut 40 is aligned with the mounting hole 1113 and then can be fixed by the threaded fastener 30 .

[0051] Reference Figure 4 The limiting plate 13 has a limiting portion, the frame 21 has a frame bottom plate 211 and a side bending plate 212 connected to the frame bottom plate 211, the limiting portion contacts the side bending plate 212 to achieve limiting in a third direction, wherein the third direction is perpendicular to the first direction and perpendicular to the second direction.

[0052] The limiting plate 13 is specifically in contact with the side bending plate 212. The third direction is the height direction of the purlin 10. Figure 2 The direction is shown by the arrow C. Figure 4 , the side bending plate 212 extends in a direction away from the purlin 10. The extension direction of the side bending plate 212 is preferably consistent with the third direction. The limiting portion can be a first protrusion 14, the first protrusion 14 has a bottom limiting surface, and the side bending plate 212 has a top limiting surface 2121, and the bottom limiting surface is used to contact the top limiting surface 2121. The shape of the orthographic projection of the first protrusion 14 on the limiting plate 13 can be set according to actual needs, such as being set to D-type, triangle, rectangle, etc. The limiting plate 13 and the first protrusion 14 that match the two frames 21 of a single photovoltaic component 20 in the purlin 10 are symmetrically arranged.

[0053] When the photovoltaic module 20 is installed, the frame 21 is pressed downward to press the side bending plate 212 under the first protrusion 14. After the photovoltaic module 20 is installed, the bottom limit surface contacts the top limit surface 2121 to limit the displacement of the photovoltaic module 20 in the third direction, thereby achieving the limit in the third direction. The protrusion height of the first protrusion 14 is sufficient to press the side bending plate 212 under the first protrusion 14 when the frame 21 is pressed downward.

[0054] In the embodiment of the utility model, the photovoltaic assembly 20 is limited along the third direction by the arrangement of the limiting portion and the side bending plate 212, thereby avoiding the potential safety hazard caused by insufficient tightening of the bolts or loosening of the bolts.

[0055] The limiting portion is a first protrusion 14. Figure 3 and Figure 4 , the protrusion height of the first protrusion 14 is less than

[0056] Or equal to 4 mm, and / or, the first protrusion 14 has a side guide surface 141, and the side guide surface 141 is a curved surface or an inclined surface.

[0057] Specifically, the protrusion height of the first protrusion 14 can be 2 mm, 2.5 mm, 3 mm, 3.5 mm, 3.8 mm, 4 mm, etc. The protrusion height of the first protrusion 14 cannot be designed to be too large. When the protrusion height of the first protrusion 14 is less than or equal to 4 mm, the side bending plate 212 can smoothly pass through the first protrusion 14 and move down to the bottom of the first protrusion 14.

[0058] When the side guide surface 141 is an inclined surface, the side guide surface 141 is inclined toward the top plate 111. In the embodiment of the utility model, the side guide surface 141 is an arc surface or an inclined surface, so that the side bending plate 212 is facilitated to move down to the bottom of the first protrusion 14 through the first protrusion 14 during the pressing process of the frame 21.

[0059] Figure 4 The first direction is the width direction of the purlin 10 , and along the second direction, there is a first gap between the second protrusion 12 and the limiting hole 2111 ; along the first direction, there is a second gap between one end of the second protrusion 12 and the limiting hole 2111 .

[0060] Specifically, there is a second gap between the end of the second protrusion 12 away from the side limiting surface 121 and the limiting hole 2111. The upper surface of the second protrusion 12 can be a curved surface. The first gap and the second gap can both be less than or equal to 2 mm. When the second protrusion 12 cooperates with the limiting hole 2111, due to the existence of the first gap and the second gap, even if the second protrusion 12 and the limiting hole 2111 are misaligned, the second protrusion 12 can be extended into the limiting hole 2111. In the embodiment of the utility model, by setting the first gap and the second gap, the alignment requirements of the second protrusion 12 and the limiting hole 2111 are further reduced, and rapid alignment can be achieved.

[0061] Reference Figure 1 and Figure 4 The orthographic projection of the first protrusion 14 on the limiting plate 13 is in the shape of a D-shape, a triangle or a rectangle. The orthographic projection of the second protrusion 12 on the top plate 111 and the shape of the limiting hole 2111 are both in the shape of a D-shape, a triangle or a rectangle.

[0062] Specifically, the shape of the orthographic projection of the first protrusion 14, the shape of the orthographic projection of the second protrusion 12, and the shape of the limiting hole 2111 are preferably D-shaped. When the shape of the orthographic projection of the second protrusion 12 and the shape of the orthographic projection of the first protrusion 14 are D-shaped, the second protrusion 12 and the first protrusion 14 can be punched directly on the top plate 111 and the limiting plate 13 by punching, which is convenient for processing.

[0063] In other embodiments, when the orthographic projection of the second protrusion 12 on the top plate 111 is in the shape of D, the shape of the limiting hole 2111 may be rectangular.

[0064] Reference Figure 1, Figure 3 and Figure 4 The limiting plate 13 includes a limiting plate body 131 , and an end of the limiting plate body 131 away from the top plate 111 has a guide plate 132 , and the guide plate 132 is arranged at an angle to the limiting plate body 131 .

[0065] Specifically, the purlin 10 includes a plurality of second protrusions 12, a plurality of limiting plates 13 and a plurality of first protrusions 14. The two guide plates 132 in two adjacent limiting plates 13 are symmetrically arranged. During the placement of the photovoltaic module 20, the guide plates 132 play a guiding role, which is conducive to the placement of the photovoltaic module 20.

[0066] Reference Figure 2 and Figure 5 The top plate 111 is provided with a mounting hole 1113. The frame bottom plate 211 is provided with a pre-installed nut 40.

[0067] Specifically, the mounting hole 1113 is used for the threaded fastener 30 to be inserted, and the threaded fastener 30 cooperates with the pre-installed nut 40. The mounting hole 1113 can be provided on the second flange 1112. The pre-installed nut 40 can be welded, bonded, or clamped on the frame bottom plate 211, and the frame bottom plate 211 is provided with a through hole corresponding to the threaded hole in the pre-installed nut 40. The number of pre-installed nuts 40 fixed on a single frame bottom plate 211 can be one, two, etc. For example, two pre-installed nuts 40 can be fixed on a single frame bottom plate 211. At this time, a total of four pre-installed nuts 40 are fixed to the two frames 21 on a single photovoltaic module 20.

[0068] Reference Figure 5 When the threaded fastener 30 is assembled, the head of the threaded fastener 30 is screwed to screw the threaded fastener 30 with the pre-installed nut 40, and the threaded fastener 30 is tightened. After the threaded fastener 30 is assembled, the head of the threaded fastener 30 is located on the lower side of the top plate 111 close to the bottom plate 112. In the embodiment of the utility model, through the setting of the mounting hole 1113 and the pre-installed nut 40, the threaded fastener 30 can be used to further fix the photovoltaic module 20, thereby strengthening the fixing effect of the photovoltaic module 20 and improving the reliability of the fixing of the photovoltaic module 20.

[0069] Reference Figure 2 The top plate 111 includes a first flange 1111 and a second flange 1112 that are spaced apart, the first matching portion is disposed on the first flange 1111 , the limiting plate 13 is formed by bending the first flange 1111 along the second direction, and the mounting hole 1113 is located on the second flange 1112 .

[0070] Specifically, when the limiting plate 13 is bent, the portion to be bent on the first flange 1111 is first cut off, and then bent. Figure 1After bending, there is no other structure between two adjacent limiting plates 13. The first matching portion and the limiting plate 13 are on the same side of the width direction of the purlin 10, which has a good limiting effect on the frame 21 in three directions. The purlin body 11 also includes a support plate 113 connected to the top plate 111, and the first matching portion and the mounting hole 1113 are respectively located on both sides of the support plate 113 along the first direction.

[0071] In other embodiments, when the mounting hole 1113 is not provided, the first matching portion may be provided on the second flange 1112 .

[0072] Reference Figure 8 The purlin body 11 is C-shaped and includes a top plate 111, a support plate 113, and a bottom plate 112 connected in sequence. The first matching portion and the mounting hole 1113 are both located on one side of the support plate 113 along the first direction.

[0073] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0074] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. A photovoltaic system, characterized in that: The photovoltaic module comprises a purlin and a photovoltaic module, wherein the purlin comprises a purlin body, a first matching portion is arranged on the top plate of the purlin body, a second matching portion is arranged on the frame of the photovoltaic module, and the first matching portion cooperates with the second matching portion to realize the limitation in the first direction; The purlin body is provided with a limiting plate, and the limiting plate contacts the frame to achieve limiting in a second direction, wherein the first direction is perpendicular to the second direction.

2. The photovoltaic system according to claim 1, characterized in that: The first matching portion is a second protrusion, and the second matching portion is a limiting hole; or, the first matching portion is a limiting hole, and the second matching portion is a second protrusion.

3. The photovoltaic system according to claim 2, characterized in that: The limiting plate has a limiting portion, the frame has a frame bottom plate and a side bending plate connected to the frame bottom plate, the limiting portion contacts the side bending plate to achieve limiting in a third direction, wherein the third direction is perpendicular to the first direction and perpendicular to the second direction.

4. The photovoltaic system according to claim 3, characterized in that: The side bending plate extends in a direction away from the purlin.

5. The photovoltaic system according to claim 3, characterized in that: The limiting portion is a first protrusion.

6. The photovoltaic system according to claim 5, characterized in that: The protrusion height of the first protrusion is less than or equal to 4 mm, and / or the first protrusion has a side guide surface, and the side guide surface is a curved surface or an inclined surface.

7. The photovoltaic system according to claim 2, characterized in that: The first direction is the width direction of the purlin, and along the second direction, there is a first gap between the second protrusion and the limiting hole; Along the first direction, a second gap is provided between one end of the second protrusion and the limiting hole.

8. The photovoltaic system according to claim 2, characterized in that: The shape of the orthographic projection of the second protrusion on the top plate and the shape of the limiting hole are both D-shaped, triangular or rectangular.

9. The photovoltaic system according to claim 3, characterized in that: The limiting plate comprises a limiting plate body, and one end of the limiting plate body away from the top plate is provided with a guide plate, and the guide plate is arranged at an angle with the limiting plate body.

10. The photovoltaic system according to any one of claims 1 to 9, characterized in that: The top plate is provided with a mounting hole.

11. The photovoltaic system according to claim 10, characterized in that: The top plate includes a first flange and a second flange that are spaced apart from each other, the first matching portion is disposed on the first flange, the limiting plate is formed by bending the first flange, and the mounting hole is located on the second flange.

12. The photovoltaic system according to claim 10, characterized in that: The purlin body is C-shaped, and includes the top plate, the support plate, and the bottom plate connected in sequence.

13. The photovoltaic system according to claim 10, characterized in that: The frame bottom plate is provided with pre-installed nuts.

Images