Photovoltaic roof system

Abstract

This application provides a photovoltaic roofing system, relating to the field of photovoltaic technology, which enables the rapid installation of integrated photovoltaic roofs on multiple container roofs without damaging the container roofs. The photovoltaic roofing system includes: a plurality of photovoltaic roofing units, each photovoltaic roofing unit comprising: a first supporting frame, one end of which is fixedly mounted on a first corner piece (the first corner piece being a corner piece of a container building roof), and the other end of which is provided with a second corner piece; a roof panel mounted on the first supporting frame; a second supporting frame, on which a third corner piece for use with the second corner piece is mounted; photovoltaic modules mounted within a slide rail on the second supporting frame; a semi-automatic twist lock located between the grouped second and third corner pieces for connecting the second and third corner pieces; a first bridge lock for locking the second and third corner pieces; and a second bridge lock for locking the plurality of photovoltaic roofing units together.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a photovoltaic roofing system. Background Technology

[0002] Nowadays, container houses are increasingly being used in various situations due to their convenient installation, simple structure, and easy mobility. As a result, a large number of idle container houses can have photovoltaic panels installed on their roofs to generate electricity using solar energy.

[0003] However, in existing integrated photovoltaic (PV) roof solutions, PV panels are typically installed on the roof using brackets. When these brackets are fixed to a concrete or corrugated steel roof, holes need to be drilled through them. This can easily lead to leaks or corrosion of the corrugated steel, reducing its lifespan. Similarly, drilling holes to install integrated PV roofs on the roofs of multiple container houses can also easily cause leakage problems.

[0004] Therefore, how to quickly install integrated photovoltaic roofs on multiple container roofs without damaging the container roofs is a problem that urgently needs to be solved. Summary of the Invention

[0005] This invention provides a photovoltaic roofing system that solves the technical problem of quickly installing integrated photovoltaic roofs on multiple container roofs without damaging the container roofs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention provides a photovoltaic roofing system, comprising a plurality of photovoltaic roofing units. Each photovoltaic roofing unit includes: a first supporting frame, one end of which is fixedly mounted on a first corner piece, the first corner piece being a corner piece of a container building roof, and the other end of which is provided with a second corner piece; a roof panel mounted on the first supporting frame; a second supporting frame, on which a third corner piece is provided for use with the second corner piece; a photovoltaic module, the photovoltaic module being mounted in a slide rail on the second supporting frame; a semi-automatic twist lock, the semi-automatic twist lock being located between the grouped second and third corner pieces, for connecting the second and third corner pieces; a first bridge lock, the first bridge lock being used to lock the second and third corner pieces together; and a second bridge lock, the second bridge lock being used to lock the plurality of photovoltaic roofing units together.

[0008] Optionally, the first supporting frame includes: two first columns, one end of which is fixedly mounted on two adjacent first corner pieces, and the other end of which is respectively provided with a second corner piece; two second columns, one end of which is fixedly mounted on two other adjacent first corner pieces, and the other end of which is respectively provided with a second corner piece; two first support beams, which are respectively disposed between adjacent first columns and second columns; and two second support beams, which are respectively disposed between two first columns and between two second columns.

[0009] Optionally, the two first columns are of equal length, the two second columns are of equal length, and the length of the first column is greater than the length of the second column; the two first support beams are of equal length, the two second support beams are of equal length, and the length of the first support beam is greater than the length of the second support beam.

[0010] Optionally, the first supporting frame further includes: a plurality of roof purlins, the two ends of which are respectively fixedly mounted on two oppositely arranged first support beams; wherein, the roof panel is mounted on the plurality of roof purlins.

[0011] Optionally, the second supporting frame further includes: two third support beams, which are arranged opposite to each other, with the two ends of each third support beam respectively set on two adjacent third triangular members; and two fourth support beams, which are arranged opposite to each other, with the two ends of each fourth support beam respectively set on two adjacent third triangular members; wherein the length of the third support beam is greater than the length of the fourth support beam, and the height of both the third support beam and the fourth support beam is less than the height of the third triangular member.

[0012] Optionally, the second supporting frame further includes two slide rails, which are H-shaped slide rails, and the two slide rails are respectively mounted on two oppositely arranged third support beams.

[0013] Optionally, the slide rail includes: a U-shaped mounting groove consisting of two symmetrically arranged edges and a bottom; and an overlap that connects to one edge of the U-shaped mounting groove and is fixed to the third support beam by anchor bolts.

[0014] Optionally, the photovoltaic module includes: a plurality of photovoltaic panels, which are installed in a U-shaped mounting groove; wherein, the groove opening of the U-shaped mounting groove is provided with a limiting member, which abuts against a first photovoltaic panel closest to the groove opening among the plurality of photovoltaic panels, for limiting the first photovoltaic panel.

[0015] Optionally, the two locking cones of the semi-automatic twist lock are located in the two corner hole opposite to each other in the second and third corner pieces, respectively.

[0016] Optionally, a second bridge lock is provided between every two adjacent triangular components in several photovoltaic roof units.

[0017] This invention provides a photovoltaic roofing system comprising several photovoltaic roofing units, each unit including: a first supporting frame, one end of which is fixedly mounted on a first corner piece of a container building roof, and the other end of which has a second corner piece for use with the first corner piece, and a roof panel mounted on the first supporting frame; and a second supporting frame, on which a third corner piece for use with the second corner piece is mounted, and photovoltaic modules are mounted within a slide rail on the second supporting frame; wherein the grouped second and third corner pieces are internally connected by a semi-automatic twist lock and externally locked by a first bridge lock. Furthermore, the photovoltaic roofing units can be locked together by a second bridge lock. Because the photovoltaic roof units in this photovoltaic roof system can be quickly connected to the first corner pieces of the container building roof via the second corner piece without damaging the roof structure, and the roof panel also has many advantages such as waterproofing and thermal insulation; after the photovoltaic modules are placed in the slide rails on the second receiving frame, the second receiving frame can be quickly connected to the second corner piece via the third corner piece, and the structure is simple and easy to install; in addition, multiple photovoltaic roof units in the photovoltaic roof system can be quickly and easily connected via the second bridge lock, which improves the installation efficiency of multiple photovoltaic roof units. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a photovoltaic roofing system provided in an embodiment of this application;

[0019] Figure 2 A schematic diagram of the installation nodes of the photovoltaic roofing system provided in the embodiments of this application;

[0020] Figure 3 This is one of the structural schematic diagrams of the first supporting frame provided in the embodiments of this application;

[0021] Figure 4 A second schematic diagram of the structure of the first receiving frame provided in the embodiments of this application;

[0022] Figure 5 This is a schematic diagram of the slide rail provided in an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 1 - Photovoltaic roof unit, 2 - First supporting frame, 3 - First corner piece, 4 - Second corner piece, 5 - Roof panel, 6 - Second supporting frame, 7 - Third corner piece seat, 8 - Photovoltaic module, 9 - Slide rail, 10 - Semi-automatic twist lock, 11 - First bridge lock, 12 - Second bridge lock, 13 - First column, 14 - Second column, 15 - First support beam, 16 - Second support beam, 17 - Roof purlin, 18 - Third support beam, 19 - Fourth support beam, 20 - U-shaped mounting groove, 21 - Edge, 22 - Bottom, 23 - Overlap, 24 - Photovoltaic panel, 25 - Limiting component, 26 - First photovoltaic panel. Detailed Implementation

[0024] Embodiments of the present invention will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0025] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0026] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to 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 the present invention.

[0027] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Figure 1 This application provides a possible structural schematic diagram of a photovoltaic roof system according to an embodiment, as shown below. Figure 1 As shown, the photovoltaic roof system includes several photovoltaic roof units 1. Each photovoltaic roof unit 1 includes: a first supporting frame 2, one end of which is fixedly mounted on a first corner piece 3, which is a corner piece of a container building roof, and the other end of which is provided with a second corner piece 4; a roof panel 5, which is mounted on the first supporting frame 2; a second supporting frame 6, which is provided with a third corner piece 7 that is used in conjunction with the second corner piece 4; a photovoltaic module 8, which is mounted in a slide rail 9 on the second supporting frame 6; a semi-automatic twist lock 10, which is located between the grouped second corner piece 4 and the third corner piece 7 and is used to connect the second corner piece 4 and the third corner piece 7; a first bridge lock 11, which is used to lock the second corner piece 4 and the third corner piece 7; and a second bridge lock 12, which is used to lock the several photovoltaic roof units 1 together.

[0029] Optionally, in this embodiment of the application, the photovoltaic roof system includes a plurality of photovoltaic roof units 1, which can be installed on a container building complex, wherein each photovoltaic roof unit 1 is installed on the roof of a container building.

[0030] In this embodiment, each photovoltaic roof unit comprises two parts: a roof section and a photovoltaic module section. The roof section is fixedly connected to the roof of the container building. The roof section includes: a first supporting frame 2, one end of which is fixedly mounted on a first corner piece 3 (the corner piece of the container building's roof), and the other end of which is provided with a second corner piece 4; a roof panel 5, which is mounted on the first supporting frame 2 and primarily serves to waterproof the container building. The photovoltaic module section includes: a second supporting frame 6, on which a third corner piece 7 is provided for use with the second corner piece 4; and a photovoltaic module 8, which is mounted within a slide rail 9 on the second supporting frame 6. The photovoltaic roof unit 1 generates electricity through the photovoltaic module 8.

[0031] Optionally, the dimensions of the first supporting frame 2 can be set according to the roof dimensions of the container building, that is, the shape of the first supporting frame 2 and the shape of the roof of the container building can be the same, and the length of the supporting beams that make up the first supporting frame 2 can be the same as the length of each side of the roof of the container building.

[0032] Optionally, the first supporting frame 2 can be a supporting frame integrally welded from multiple supporting beams and columns, or it can be a supporting frame assembled from multiple supporting beams and columns.

[0033] Specifically, since the shape of a typical container roof is rectangular, the first supporting frame 2 can also be designed as rectangular. A column is installed at each of the four corners of the first supporting frame 2. One end of each column is fixedly welded to a corresponding container corner piece at one of the four corners of the container roof. A support beam can be installed between every two adjacent columns, and a second corner piece 4 is installed at the other end of each column. In this way, the four columns and four support beams constitute the main body of the first supporting frame 2. The specifications of the second corner pieces 4 can be the same as or different from the specifications of the container corner pieces on the container building roof.

[0034] Optionally, a roof panel 5 can also be installed on the first supporting frame 2. The size of the roof panel 5 can cover the entire first supporting frame 2, so as to provide a waterproof effect for the container building below the first supporting frame 2.

[0035] Optionally, the second support frame 6 can be a support frame integrally welded from multiple support beams and third corner pieces 7, or it can be a support frame assembled from multiple support beams and third corner pieces 7.

[0036] Specifically, when the first supporting frame 2 is rectangular, the second supporting frame 6 can also be designed as rectangular based on the shape of the first supporting frame 2. A third corner piece 7 is provided at each of the four corners of the second supporting frame 2, and a support beam can be provided between every two adjacent third corner pieces 7. Thus, the four third corner pieces 7 and the four support beams constitute the main body of the second supporting frame 6. The specifications of the third corner pieces 7 can be the same as those of the second corner pieces 4, so that the third corner pieces 7 and the second corner pieces 4 can be used together.

[0037] Optionally, a slide rail 9 can be fixedly installed on each of the two supporting beams opposite to the second supporting frame 6. The size of the photovoltaic module 8 is exactly adapted to the inner size of the slide rail 9. During installation, the two ends of the photovoltaic module 8 are inserted into the two slide rails 9 respectively, and it can be directly pushed into the slide rail 9. The installation method is simple.

[0038] It should be noted that the above statement "the size of the photovoltaic module is exactly compatible with the inner size of the slide rail" can be understood as: the length of the longer frame of the photovoltaic module is the same as the distance between the two bottom edges inside the two slide rails.

[0039] Of course, when assembling and connecting the roof section and photovoltaic module section in the photovoltaic roof unit, semi-automatic twist locks and bridge locks are required.

[0040] In this embodiment, the two locking cones of the semi-automatic twist lock 10 are located in the two corner hole opposite to the second corner piece 4 and the third corner piece 7, respectively.

[0041] Optionally, when assembling and connecting the roof section and the photovoltaic module section, the first receiving frame 2 can be hoisted above the second receiving frame 6. A semi-automatic twist lock 10 is placed in the lower corner hole of each second corner piece 4 of the first receiving frame 2. When the semi-automatic twist lock 10 is fully inserted into the upper corner hole of each third corner piece 7 of the second receiving frame 6, the control lever is pushed to rotate 90° to lock it in a locked state.

[0042] Thus, it can be seen that since the semi-automatic twist lock can be used to quickly connect the first and second supporting frames, the operation is simple and improves the installation efficiency of photovoltaic roof units.

[0043] In the embodiments of this application, such as Figure 2 As shown, the two locking hooks of the first bridge lock 11 are respectively inserted into the two adjacent corner hole of the second corner piece 4 and the third corner piece 7.

[0044] Optionally, after the semi-automatic twist lock 10 aligns and connects the first receiving frame 2 and the second receiving frame 6, the two locking hooks of the first bridge lock 11 are inserted into the two adjacent corner hole of the second corner piece 4 and the third corner piece 7 respectively, and then the adjusting nut is rotated to connect and tighten the first receiving frame 2 and the second receiving frame 6.

[0045] Thus, it can be seen that the first bridge lock can be used to quickly tighten the first and second supporting frames, ensuring the stability of the photovoltaic roof unit installation. Furthermore, the first bridge lock can be reused, reducing costs.

[0046] In this embodiment of the application, a second bridge lock 12 is provided between every two adjacent triangular members 7 in several photovoltaic roof units.

[0047] Optionally, the photovoltaic roofing system can be installed on the roof of a container building complex. The photovoltaic roofing system includes several photovoltaic roofing units 1. The container building complex includes multiple container buildings. Each photovoltaic roofing unit 1 can be installed on the roof of one container building. Several photovoltaic roofing units 1 can be connected into a whole by setting a second bridge lock 12 between the triangular parts 7 of each photovoltaic roofing unit 1.

[0048] For example, combined with Figure 1 As shown, the photovoltaic roof system includes four photovoltaic roof units 1. The photovoltaic roof system is installed on the roof of a container building complex. The container building is composed of four independent container buildings. Each container building has a corresponding photovoltaic roof unit 1 installed on its roof. A third corner piece 7 is provided on the column of the second supporting frame 6 in each photovoltaic roof unit 1. At this time, a second bridge lock 12 can be set between every two adjacent third corner pieces 7, thereby connecting the four photovoltaic roof units 1 into a whole.

[0049] Thus, it can be seen that since several photovoltaic roof units can be combined into a complete photovoltaic roof system by setting a second bridge lock between each pair of adjacent third corner pieces, the stability of the photovoltaic roof system installation is further increased, the gaps formed between several photovoltaic roof units are reduced, and the waterproofness of the photovoltaic roof system is improved.

[0050] In this embodiment, the photovoltaic roof system includes several photovoltaic roof units, and each photovoltaic roof unit includes: a first supporting frame, one end of which can be fixedly mounted on a first corner piece of the container building roof, and the other end of which is provided with a second corner piece for use with the first corner piece, and a roof panel is provided on the first supporting frame; a second supporting frame, on which a third corner piece for use with the second corner piece is provided, and a photovoltaic module is arranged in a slide rail on the second supporting frame; wherein, the second and third corner pieces arranged in groups are internally connected by a semi-automatic twist lock, and externally locked by a first bridge lock. In addition, several photovoltaic roof units can be locked together by a second bridge lock. Because the photovoltaic roof units in this photovoltaic roof system can be quickly connected to the first corner pieces of the container building roof via the second corner piece without damaging the roof structure, and the roof panel also has many advantages such as waterproofing and thermal insulation; after the photovoltaic modules are placed in the slide rails on the second receiving frame, the second receiving frame can be quickly connected to the second corner piece via the third corner piece, and the structure is simple and easy to install; in addition, multiple photovoltaic roof units in the photovoltaic roof system can be quickly and easily connected via the second bridge lock, which improves the installation efficiency of multiple photovoltaic roof units.

[0051] The structure of the first supporting frame is described in detail below.

[0052] Optionally, in the embodiments of this application, combined with Figure 1 ,like Figure 3As shown, the first supporting frame 2 includes: two first columns 13, one end of which is fixedly mounted on two adjacent first corner pieces 3, and the other end of which is respectively provided with a second corner piece 4; two second columns 14, one end of which is fixedly mounted on two other adjacent first corner pieces 3, and the other end of which is respectively provided with a second corner piece 4; two first support beams 15, which are respectively disposed between adjacent first columns 13 and second columns 14; and two second support beams 16, which are respectively disposed between two first columns 13 and between two second columns 14.

[0053] Optionally, the first column 13 and the second column 14 can be fixed to the first corner piece 3 by welding. Specifically, both the first column 13 and the second column 14 can be rectangular aluminum-iron alloy columns, which can increase the resistance of the columns and support beams to rainwater corrosion.

[0054] Optionally, the first support beam 15 can be fixed between adjacent first columns 13 and second columns 14 by welding; the second support beam 16 can be fixed between two first columns 13 and two second columns 14 by welding. Specifically, both the first support beam 15 and the second support beam 16 can be rectangular aluminum-iron alloy columns, thereby increasing the resistance of the support beams to rainwater corrosion.

[0055] Specifically, both the first corner piece 3 and the second corner piece 4 mentioned above can be standard container corner pieces.

[0056] Thus, it can be seen that since one end of the four columns of the first supporting frame is fixed to the first corner piece, and the other end is provided with the second corner piece; and the two supporting beams of the first supporting frame are set between the adjacent first and second columns, and the other two supporting beams are set between the two first columns and the two second columns respectively, a structurally stable supporting frame can be formed, and the structure is simple and easy to manufacture.

[0057] Optionally, in the embodiments of this application, combined with Figure 3 As shown, the two first columns 13 are of equal length, the two second columns 14 are of equal length, and the length of the first column 13 is greater than the length of the second column 14; the two first support beams 15 are of equal length, the two second support beams 16 are of equal length, and the length of the first support beam 15 is greater than the length of the second support beam 16.

[0058] Thus, since the length of the first column is greater than that of the second column, the first supporting frame can be at a certain angle to the plane of the container building roof, which is more conducive to rainwater drainage and improves the power generation efficiency of the photovoltaic panels on the container building.

[0059] Optionally, in the embodiments of this application, combined with Figure 3 ,like Figure 4 As shown, the first supporting frame 2 further includes: a plurality of roof purlins 17, the two ends of which are respectively fixedly mounted on two oppositely arranged first support beams 15; wherein, the roof panel 5 is mounted on the plurality of roof purlins 17.

[0060] Furthermore, several roof purlins 17 can be fixed to two oppositely arranged first supporting frames 15 by welding. Specifically, the roof purlins 17 can be rectangular aluminum-iron alloy purlins, and the two ends of the roof purlins 17 can be welded to the two first supporting beams 15 respectively.

[0061] Optionally, the roof panel 5 can be made of integral profiled color steel sheet to achieve better strength. The roof panel 5 can be fixed to several roof purlins 17 by dovetail screws to fix the roof panel 5 to the first supporting frame 2.

[0062] Thus, it can be seen that the structural strength of the first supporting frame is further increased by the addition of several roof purlins on the first supporting frame. At the same time, the roof panels on the roof purlins can effectively prevent rainwater from seeping into the roof of the container building.

[0063] The structure of the second supporting frame is described in detail below.

[0064] Optionally, in the embodiments of this application, combined with Figure 3 As shown, the second supporting frame 6 further includes: two third support beams 18, which are arranged opposite to each other, with the two ends of each third support beam 18 respectively set on two adjacent triangular pieces 7; and two fourth support beams 19, which are arranged opposite to each other, with the two ends of each fourth support beam 19 respectively set on two adjacent triangular pieces 7.

[0065] In this embodiment, the length of the third support beam 18 is greater than the length of the fourth support beam 19, and the heights of both the third support beam 18 and the fourth support beam 19 are less than the height of the third corner piece 7.

[0066] Optionally, the aforementioned third corner piece 7 can be a standard container corner piece, and the specifications of the third corner piece 7 are the same as those of the second corner piece 4, so that the third corner piece 7 and the second corner piece 4 can be used together.

[0067] Optionally, the third support beam 18 can be a rectangular aluminum-iron alloy support beam, which can be fixed between two adjacent third corner pieces 7 by welding. Specifically, the two ends of the third support beam 18 are welded to the two opposite surfaces of the two third corner pieces 7, and the highest point of the third support beam 18 is lower than the highest point of the third corner piece 7, thereby leaving space for the assembly of other components.

[0068] Optionally, the fourth support beam 19 can be a rectangular aluminum-iron alloy support beam, or it can be fixed between two adjacent third corner pieces 7 by welding. Specifically, the two ends of the fourth support beam 19 are welded to the two opposite surfaces of the two third corner pieces 7, and the highest point of the fourth support beam 19 is lower than the highest point of the third corner piece 7, so as to avoid affecting the installation of the photovoltaic module.

[0069] Among them, the two third support beams 18 are parallel to each other, the two fourth support beams 19 are parallel to each other, the third support beams 18 and the fourth support beams 19 are perpendicular to each other, and the main structure of the second supporting frame 6, which is composed of the two third support beams 18, the two fourth support beams 19 and the four third corner pieces 7, is consistent in size with the main structure of the first supporting frame 2.

[0070] Thus, it can be seen that since the four supporting beams of the second supporting frame can be fixed to the two adjacent third corner pieces respectively, a structurally stable supporting frame is formed, and the structure is simple and easy to manufacture.

[0071] Optionally, in the embodiments of this application, combined with Figure 2 As shown, the second supporting frame 6 also includes two slide rails 9, which are H-shaped slide rails, and the two slide rails 9 are respectively mounted on two oppositely arranged third support beams 18.

[0072] It is understandable that the two slide rails 9 are respectively set on the two oppositely arranged third support beams 18 to accommodate the photovoltaic modules 8.

[0073] Thus, it can be seen that since the second supporting frame includes two oppositely arranged slide rails, it can be used to quickly install photovoltaic modules. The structure is simple, requires no fasteners, and improves the installation efficiency of photovoltaic modules.

[0074] Optionally, in the embodiments of this application, such as Figure 5 As shown, the slide rail 9 includes: a U-shaped mounting groove 20, which is composed of two symmetrically arranged edge portions 21 and a bottom 22; and an overlapping portion 23, which is connected to one edge portion 21 of the U-shaped mounting groove 20, and the overlapping portion 23 is fixed to the third support beam 18 by anchor bolts.

[0075] Optionally, the aforementioned U-shaped mounting groove 20 is used to install the photovoltaic module 8.

[0076] Optionally, the length of the overlap 23 can be the same as the length of the U-shaped mounting groove 20. The overlap 23 and the U-shaped mounting groove 20 can be integrally manufactured, and the overlap 23 can be connected to one edge 21 of the U-shaped mounting groove 20 near the third support beam 18.

[0077] It is understandable that when installing the slide rail, it is only necessary to install an anchor bolt at a fixed interval on the overlap to firmly fix the slide rail to the third support beam.

[0078] Thus, it can be seen that the slide rail has a simple structure and is easy to install because it is equipped with a U-shaped mounting groove for installing photovoltaic modules and an overlapping part for fixing the slide rail.

[0079] Optionally, in the embodiments of this application, combined with Figure 2 As shown, the photovoltaic module includes: a plurality of photovoltaic panels 24, which are installed in a U-shaped mounting groove 20.

[0080] In this embodiment of the application, combined with Figure 5 As shown, the U-shaped mounting groove 20 has a limiting member 25 at its opening. The limiting member 25 abuts against the first photovoltaic panel 26 closest to the opening among a plurality of photovoltaic panels 24, and is used to limit the first photovoltaic panel 26.

[0081] Optionally, the aforementioned limiting member 25 may specifically be a limiting bolt.

[0082] It should be noted that the slots of the U-shaped mounting groove 20 mentioned above refer to the two slots of the U-shaped mounting groove 20 on the vertical plane, and the first photovoltaic panel 26 mentioned above refers to the two photovoltaic panels closest to these two slots.

[0083] Optionally, a limiting bolt can be provided at one edge of the first photovoltaic panel 26 near the slot to restrict the position of several photovoltaic panels 24.

[0084] Thus, it can be seen that since the photovoltaic modules installed in the U-shaped mounting groove can be limited by the limiting bolts, there is no need for too many parts, which saves costs.

[0085] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A photovoltaic roofing system, comprising a plurality of photovoltaic roofing units, characterized in that, The photovoltaic roof unit includes: A first supporting frame, one end of which is fixedly mounted on a first corner piece, the first corner piece being a corner piece for a container building roof, and the other end of which is provided with a second corner piece; the first supporting frame includes: two first columns, one end of which is respectively fixedly mounted on two adjacent first corner pieces, and the other end of which is respectively provided with a second corner piece; two second columns, one end of which is fixedly mounted on two other adjacent first corner pieces, and the other end of which is respectively provided with a second corner piece; two first support beams, which are respectively disposed between adjacent first columns and second columns; and two second support beams, which are respectively disposed between the two first columns and between the two second columns. A roof panel, which is mounted on the first supporting frame; The second supporting frame is provided with a third corner piece that is used in conjunction with the second corner piece; Photovoltaic modules, wherein the photovoltaic modules are mounted in slide rails on the second receiving frame; A semi-automatic twist lock is located between the grouped second corner piece and the third corner piece, and is used to connect the second corner piece and the third corner piece; The first bridge lock is used to lock the second corner piece and the third corner piece together. The second bridge lock is used to lock and connect several photovoltaic roof units.

2. The photovoltaic roofing system according to claim 1, characterized in that, The two first columns are of equal length, the two second columns are of equal length, and the length of the first column is greater than the length of the second column; the two first support beams are of equal length, the two second support beams are of equal length, and the length of the first support beam is greater than the length of the second support beam.

3. The photovoltaic roofing system according to claim 1, characterized in that, The first receiving frame also includes: Several roof purlins, with both ends of the several roof purlins respectively fixedly mounted on two oppositely arranged first support beams; The roof panel is mounted on the plurality of roof purlins.

4. The photovoltaic roofing system according to claim 1, characterized in that, The second supporting frame also includes: Two third support beams are arranged opposite each other, and the two ends of each third support beam are respectively set on two adjacent triangular pieces; Two fourth support beams are arranged opposite each other, with each end of the fourth support beam set on two adjacent triangular pieces respectively; The length of the third support beam is greater than the length of the fourth support beam, and the heights of both the third and fourth support beams are less than the height of the third corner piece.

5. The photovoltaic roofing system according to claim 4, characterized in that, The second supporting frame also includes: Two slide rails, which are H-shaped slide rails, are respectively mounted on two opposite third support beams.

6. The photovoltaic roofing system according to claim 5, characterized in that, The slide rail includes: The U-shaped mounting groove is composed of two symmetrically arranged edges and a bottom. An overlapping portion is connected to one edge of the U-shaped mounting groove, and the overlapping portion is fixed to the third support beam by anchor bolts.

7. The photovoltaic roofing system according to claim 6, characterized in that, The photovoltaic module includes: A plurality of photovoltaic panels are installed in the U-shaped mounting groove; The U-shaped mounting groove has a limiting component at its opening. The limiting component abuts against the first photovoltaic panel closest to the opening of the groove among the plurality of photovoltaic panels, and is used to limit the position of the first photovoltaic panel.

8. The photovoltaic roofing system according to claim 1, characterized in that, The two locking cones of the semi-automatic twist lock are located in the two corner hole opposite to each other in the second and third corner pieces, respectively.

9. The photovoltaic roofing system according to claim 1, characterized in that, The two locking hooks of the first bridge lock are respectively inserted into the two adjacent corner hole of the second corner piece and the third corner piece.

10. The photovoltaic roofing system according to claim 1, characterized in that, The second bridge lock is provided between every two adjacent triangular components in the plurality of photovoltaic roof units.

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