A roof photovoltaic system

Abstract

The application discloses a roof photovoltaic system, which comprises a photovoltaic support, a photovoltaic panel, and long and short side frames enclosed at the edges of the photovoltaic panel, the photovoltaic support is fixed on the roof, the photovoltaic support is provided with a notch, a stress plate and a connecting plate, the long and short side frames are provided with a first clamping part and a second clamping part for clamping the photovoltaic panel, the long side frame is fixed on the photovoltaic support and overlaps the upper part of the photovoltaic support, and the first clamping part is inserted into the notch. The roof photovoltaic system has the advantages of low cost and good waterproof effect.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic support technology, and more particularly to a rooftop photovoltaic system. Background Technology

[0002] Solar energy is the energy produced by the continuous nuclear fusion reactions inside or on the surface of the sun, particularly in sunspots. Solar energy boasts advantages such as abundant resources, long lifespan, wide distribution, safety, cleanliness, and reliable technology. Because it can be converted into various other forms of energy, its applications are extremely broad. Obtaining electricity from solar energy requires photovoltaic conversion using solar cells.

[0003] Currently, photovoltaic systems are being applied to a wider range of applications, and more and more photovoltaic systems are being installed on building roofs. Traditional rooftop photovoltaic systems require laying corrugated steel sheets on the building roof first, and then drilling holes in the corrugated steel sheets to install the photovoltaic system. This is not only costly, but also makes it difficult to guarantee waterproofing. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a roof photovoltaic system with low cost and good waterproof effect.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A rooftop photovoltaic system includes a photovoltaic bracket, a photovoltaic panel, and a long frame and a short frame surrounding the edge of the photovoltaic panel. The photovoltaic bracket is fixed to the roof and has a slot, a load-bearing plate, and a connecting plate. The long frame and the short frame are provided with a first clamping part and a second clamping part for clamping the photovoltaic panel. The long frame is fixed to the photovoltaic bracket and overlaps at the upper part of the photovoltaic bracket. The first clamping part is inserted into the slot.

[0007] As a further improvement to the above technical solution:

[0008] The adjacent short frames surrounding each photovoltaic panel are tiled together along the roof's sloping direction, and the higher short frames are provided with overlapping edges for the tiled joint.

[0009] A cushioning strip is provided between the short frames of the buckle joint.

[0010] The long and short borders are provided with a first accommodating cavity and a second accommodating cavity for inserting frame corner codes to achieve the combination of adjacent long and short borders.

[0011] The photovoltaic support is configured as a closed profile formed by bending steel plates and welding them together at both ends, or a closed profile formed by bending steel plates and interlocking them at both ends.

[0012] The long frame is provided with a folded edge that overlaps the photovoltaic support.

[0013] The photovoltaic support is equipped with one or more water inlet channels.

[0014] The long frame is bolted to the load-bearing plate.

[0015] The long frame is snapped together with the side groove edge of the slot, and the long frame is provided with a snap-fit ​​part for snap-fit ​​connection.

[0016] A pressure block is pressed on the folded edge, and a bolt threaded onto the pressure block is threaded to the photovoltaic bracket. When the bolt is tightened, it drives the pressure block to press the folded edge onto the photovoltaic bracket.

[0017] The photovoltaic support is provided with a folded plate that overlaps the long frame.

[0018] The long frame is bolted to the load-bearing plate.

[0019] The photovoltaic support structure is configured as an open profile formed by bending a steel plate.

[0020] The photovoltaic support is provided with a folded plate that overlaps the long frame.

[0021] The photovoltaic support is equipped with one or more water inlet channels.

[0022] The long frame is bolted to the load-bearing plate.

[0023] The long and short borders are provided with first and second corner code connecting edges for fixed connection of frame corner codes to realize the combination of adjacent long and short borders.

[0024] The photovoltaic support structure is configured as an open profile formed by bending a steel plate.

[0025] The long frame is provided with a folded edge that overlaps the photovoltaic support.

[0026] The photovoltaic support is equipped with one or more water inlet channels.

[0027] A pressure block is pressed on the folded edge, and a bolt threaded onto the pressure block is threaded to the photovoltaic bracket. When the bolt is tightened, it drives the pressure block to press the folded edge onto the photovoltaic bracket.

[0028] A pressure block is pressed onto the connecting plate, and a bolt threaded onto the pressure block is threaded onto the roof. When the bolt is tightened, it drives the pressure block to press the connecting plate onto the roof.

[0029] The connecting plate is bolted to the roof for fixation.

[0030] The photovoltaic support is also provided with openings to facilitate the connection of the connecting plate to the roof bolts.

[0031] A waterproof plug is provided on the opening.

[0032] Compared with the prior art, the advantages of the present invention are as follows:

[0033] The rooftop photovoltaic system of this invention, compared to traditional rooftop photovoltaic systems, can be directly installed on the building roof, replacing the color steel tiles in the traditional structure, significantly reducing costs. In this structure, the first clamping part of the long frame is embedded in the slot of the photovoltaic bracket, so that the slot supports the first clamping part when it is under load. When the long frame is subjected to wind pressure, the force can be transferred to the photovoltaic bracket to share the force, reducing the structural strength requirements of the long frame. The short frame, which is surrounded by the second clamping part around the edge of the photovoltaic panel, only needs to protect the photovoltaic panel and is not subjected to force. While meeting the usage requirements, the wall thickness of the frame can be reduced to a certain extent, further reducing costs. In addition, the long frame overlaps with the photovoltaic bracket at the top, which can prevent water seepage and improve the waterproof effect of the overall structure. Attached Figure Description

[0034] Figure 1 This is a schematic diagram illustrating the application of Embodiment 1 of the present invention.

[0035] Figure 2 yes Figure 1 A magnified view of part A in the middle.

[0036] Figure 3 yes Figure 1 A magnified view of part B in the middle.

[0037] Figure 4 This is a schematic diagram of the photovoltaic bracket installation according to Embodiment 1 of the present invention.

[0038] Figure 5 This is a schematic diagram of the photovoltaic support structure of Embodiment 1 of the present invention.

[0039] Figure 6 This is a schematic diagram of the long border structure of Embodiment 1 and Embodiment 2 of the present invention.

[0040] Figure 7 These are schematic diagrams of the short frame structure of Embodiments 1 and 2 of the present invention.

[0041] Figure 8 This is a schematic diagram of the photovoltaic bracket installation according to Embodiment 2 of the present invention.

[0042] Figure 9 This is a schematic diagram of the photovoltaic support structure of Embodiment 2 of the present invention.

[0043] Figure 10This is a schematic diagram of the photovoltaic bracket installation according to Embodiment 3 of the present invention.

[0044] Figure 11 This is a schematic diagram of the photovoltaic support structure of Embodiment 3 of the present invention.

[0045] Figure 12 This is a schematic diagram of the long border structure of Embodiment 3 of the present invention.

[0046] Figure 13 This is a schematic diagram of the short border structure of Embodiment 3 of the present invention.

[0047] Figure 14 This is a schematic diagram of the photovoltaic bracket installation in Embodiment 4 of the present invention.

[0048] Figure 15 This is a schematic diagram of the photovoltaic support structure of Embodiment 4 of the present invention.

[0049] Figure 16 These are schematic diagrams of the long border structure of Embodiments 4 and 7 of the present invention.

[0050] Figure 17 This is a schematic diagram of the short frame of Embodiments 4 and 7 of the present invention.

[0051] Figure 18 This is a schematic diagram of the photovoltaic bracket installation according to Embodiment 5 of the present invention.

[0052] Figure 19 This is a schematic diagram of the photovoltaic support structure of Embodiment 5 of the present invention.

[0053] Figure 20 This is a schematic diagram of the long border structure of Embodiment 5 of the present invention.

[0054] Figure 21 This is a schematic diagram of the short border structure of Embodiment 5 of the present invention.

[0055] Figure 22 This is a schematic diagram of the photovoltaic bracket installation according to Embodiment 6 of the present invention.

[0056] Figure 23 This is a schematic diagram of the photovoltaic support structure of Embodiment 6 of the present invention.

[0057] Figure 24 This is a schematic diagram of the long border structure of Embodiment 6 of the present invention.

[0058] Figure 25 This is a schematic diagram of the short border structure of Embodiment 6 of the present invention.

[0059] Figure 26 This is a schematic diagram of the photovoltaic bracket installation according to Embodiment 7 of the present invention.

[0060] Figure 27This is a schematic diagram of the photovoltaic support structure of Embodiment 7 of the present invention.

[0061] The labels in the diagram represent:

[0062] 1. Photovoltaic bracket; 11. Groove; 12. Load-bearing plate; 13. Connecting plate; 14. Water channel; 15. Folded plate; 16. Opening; 2. Photovoltaic panel; 3. Long frame; 31. First clamping part; 32. First receiving cavity; 33. Folded edge; 34. Snap-fit ​​part; 35. First corner bracket connecting edge; 4. Short frame; 41. Second clamping part; 42. Overlapping edge; 43. Second receiving cavity; 44. Second corner bracket connecting edge; 5. Buffer strip; 6. Pressure block; 7. Bolt; 8. Waterproof plug. Detailed Implementation

[0063] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0064] Example 1:

[0065] like Figures 1 to 7 As shown, a first embodiment of the rooftop photovoltaic system of the present invention includes a photovoltaic bracket 1, a photovoltaic panel 2, and a long frame 3 and a short frame 4 surrounding the edge of the photovoltaic panel. The photovoltaic bracket 1 is fixedly mounted on the roof. The photovoltaic bracket 1 is provided with a slot 11, a load-bearing plate 12, and a connecting plate 13. The long frame 3 and the short frame 4 are provided with a first clamping part 31 and a second clamping part 41 for clamping the photovoltaic panel 2. The long frame 3 is fixedly mounted on the photovoltaic bracket 1 and overlaps at the upper part of the photovoltaic bracket 1. The first clamping part 31 is inserted into the slot 11. Compared to traditional rooftop photovoltaic systems, the rooftop photovoltaic system of this invention can be directly installed on the building roof, replacing the color steel tiles in the traditional structure, which greatly reduces costs. In this structure, the first clamping part 31 of the long frame 3 is embedded in the slot 11 of the photovoltaic bracket 1, so that the slot 11 supports the first clamping part 31 when it is subjected to load. When the long frame 3 is subjected to wind pressure, the force can be transferred to the photovoltaic bracket 1 to share the force, which reduces the structural strength requirements of the long frame 3. The short frame 4, which is surrounded by the second clamping part 41 around the edge of the photovoltaic panel 2, only needs to protect the photovoltaic panel 2 and is not subjected to force. While meeting the usage requirements, the wall thickness of the frame can be reduced to a certain extent, further reducing costs. In addition, the long frame 3 overlaps with the photovoltaic bracket 1 at the upper part, which can prevent water seepage and improve the waterproof effect of the overall structure.

[0066] In this embodiment, the adjacent short frames 4 surrounding each photovoltaic panel 2 are overlapped along the roof's sloping direction, and the higher short frames 4 are provided with overlapping edges 42 for this overlapping. The overlapping of adjacent short frames 4 in a tile-like manner prevents water accumulation and further improves the overall waterproofing effect of the structure.

[0067] In this embodiment, a buffer strip 5 is provided between the short frame 4 of the overlapping tiles. The buffer strip 5 not only prevents the rigid structure between adjacent short frame 4 from being damaged by collision, but also further improves the waterproofing effect.

[0068] In this embodiment, the long frame 3 and the short frame 4 are provided with a first accommodating cavity 32 and a second accommodating cavity 43 for inserting frame brackets to achieve the combination of adjacent long frame 3 and short frame 4. In this structure, the first accommodating cavity 32 and the second accommodating cavity 43 are provided, and the combination between the long frame 3 and the short frame 4 is achieved by inserting frame brackets, which is simple and convenient to operate.

[0069] In this embodiment, the long frame 3 and the short frame 4 are formed by bending steel plates. In other embodiments, the long frame 3 and the short frame 4 may also be made of aluminum alloy profiles or other profiles.

[0070] In this embodiment, the photovoltaic support 1 is a closed profile formed by bending a steel plate and welding the two ends together. It has a simple structure, is easy to form, and has a strong load-bearing capacity.

[0071] In this embodiment, a folded edge 33 is provided on the long frame 3, which overlaps with the photovoltaic bracket 1. Its structure is simple, and by setting the folded edge 33 to overlap with the photovoltaic bracket 1, rainwater seepage is prevented, thus improving the waterproof effect.

[0072] In this embodiment, a water channel 14 is provided on the photovoltaic support 1. The water channel 14 can divert and discharge rainwater on rainy days, prevent water accumulation, and further improve the waterproof effect.

[0073] In this embodiment, the long frame 3 is bolted to the load-bearing plate 12. By bolting the long frame 3 to the load-bearing plate 12, the load-bearing plate 12 provides support to the long frame 3 when it is under load. The two share the load, which improves the load-bearing capacity of the long frame 3. The bolt connection is simple to operate and easy to disassemble and replace.

[0074] In this embodiment, the connecting plate 13 is fixed to the roof with bolts. Bolt connection is simple to operate and easy to disassemble and replace. In this embodiment, the roof photovoltaic system is installed on the purlin of the steel structure roof, and the connecting plate 13 is bolted to the purlin. In other embodiments, the roof photovoltaic system can also be installed on a concrete structure roof, with nuts pre-set in the concrete structure, and bolts threaded through the connecting plate 13 to the nuts.

[0075] In this embodiment, the photovoltaic support 1 is also provided with an opening 16 to facilitate the connection of the connecting plate 13 to the roof bolts. The opening 16 facilitates operation.

[0076] In this embodiment, a waterproof plug 8 is provided on the opening 16. This improves the water-stopping performance.

[0077] Example 2:

[0078] like Figure 8 and Figure 9 As shown, the second embodiment of the rooftop photovoltaic support system of the present invention is basically the same as that of embodiment 1, except that:

[0079] In this embodiment, two water channels 14 are provided on the photovoltaic support 1. In this structure, water channels 14 are formed at both ends of the upper part of the photovoltaic support 1, which can divert and discharge rainwater to avoid water accumulation.

[0080] Example 3:

[0081] like Figures 10 to 13 As shown, the third embodiment of the rooftop photovoltaic support system of the present invention is basically the same as that of embodiment 1, except that:

[0082] In this embodiment, the long frame 3 is snapped together with the side groove edge of the slot 11, and the long frame 3 is provided with a snap-fit ​​part 34 for snap-fit ​​connection. The snap-fit ​​connection operation is simple and convenient.

[0083] Example 4:

[0084] like Figures 14 to 17 As shown, the fourth embodiment of the rooftop photovoltaic support system of the present invention is basically the same as that of embodiment 1, except that:

[0085] In this embodiment, a folded plate 15 is provided on the photovoltaic bracket 1, which overlaps with the long frame 3. In this structure, the folded plate 15 on the photovoltaic bracket 1 overlaps with the long frame 3 to prevent rainwater from seeping in and improve the waterproof effect of the overall structure.

[0086] Example 5:

[0087] like Figures 18 to 21 As shown, the fifth embodiment of the rooftop photovoltaic support system of the present invention is basically the same as that of embodiment 1, except that:

[0088] In this embodiment, the photovoltaic support 1 is configured as a closed profile formed by bending steel plates and interlocking their ends. It has a simple structure, is easy to form, and has a strong load-bearing capacity.

[0089] In this embodiment, a pressure block 6 is pressed onto the folded edge 33, and a bolt 7 threadedly connected to the photovoltaic bracket 1 passes through the pressure block 6. When the bolt 7 is tightened, it drives the pressure block 6 to press the folded edge 33 onto the photovoltaic bracket 1. In this structure, the folded edge 33 is pressed onto the photovoltaic bracket 1 by the pressure block 6 and the bolt 7 is used to lock and fix it. The operation is simple and convenient and easy to disassemble.

[0090] Example 6:

[0091] like Figures 22 to 25As shown, the sixth embodiment of the rooftop photovoltaic support system of the present invention is basically the same as that of embodiment 1, except that:

[0092] In this embodiment, the long frame 3 and the short frame 4 are provided with a first corner bracket connecting edge 35 and a second corner bracket connecting edge 44 for fixed connection of the frame brackets to achieve the combination of adjacent long frame 3 and short frame 4. In this structure, the frame brackets are pressed onto the first corner bracket connecting edge 35 and the second corner bracket connecting edge 44, and bolts are used to connect and lock them, realizing the combination of long frame 3 and short frame 4. The connection is firm and reliable, and the operation is simple and convenient.

[0093] In this embodiment, the photovoltaic support 1 is set as an open profile formed by bending a steel plate. Its structure is simple and easy to form.

[0094] In this embodiment, a pressure block 6 is pressed onto the folded edge 33, and a bolt 7 threadedly connected to the photovoltaic bracket 1 passes through the pressure block 6. When the bolt 7 is tightened, it drives the pressure block 6 to press the folded edge 33 onto the photovoltaic bracket 1. In this structure, the folded edge 33 is pressed onto the photovoltaic bracket 1 by the pressure block 6 and the bolt 7 is used to lock and fix it. The operation is simple and convenient and easy to disassemble.

[0095] In this embodiment, a pressure block 6 is pressed onto the connecting plate 13, and a bolt 7 threaded onto the pressure block 6 is threaded onto the roof. When the bolt 7 is tightened, it drives the pressure block 6 to press the connecting plate 13 onto the roof. By pressing the connecting plate 13 with the pressure block 6 and then tightening it with the bolt 7, the photovoltaic bracket 1 is fixedly installed on the roof. The operation is simple and convenient, and disassembly is easy.

[0096] Example 7:

[0097] like Figures 26 to 27 As shown, the seventh embodiment of the rooftop photovoltaic support system of the present invention is basically the same as that of embodiment 1, except that:

[0098] In this embodiment, the photovoltaic support 1 is set as an open profile formed by bending a steel plate. Its structure is simple and easy to form.

[0099] In this embodiment, a folded plate 15 is provided on the photovoltaic bracket 1, which overlaps with the long frame 3. In this structure, the folded plate 15 on the photovoltaic bracket 1 overlaps with the long frame 3 to prevent rainwater from seeping in and improve the waterproof effect of the overall structure.

[0100] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A rooftop photovoltaic system, characterized in that: The photovoltaic bracket (1), photovoltaic panel (2), and long frame (3) and short frame (4) surrounding the edge of the photovoltaic panel (2) are provided. The photovoltaic bracket (1) is fixed on the roof. The photovoltaic bracket (1) is provided with a slot (11), a load-bearing plate (12) and a connecting plate (13). The long frame (3) and the short frame (4) are respectively provided with a first clamping part (31) and a second clamping part (41) for clamping the photovoltaic panel (2). The long frame (3) is fixed on the photovoltaic bracket (1) and overlaps the upper part of the photovoltaic bracket (1). The first clamping part (31) is inserted into the slot (11). The adjacent short frames (4) surrounding each photovoltaic panel (2) are tiled together along the roof slope direction, and the short frames (4) at the higher position are provided with overlapping edges (42) for tiled overlapping. A buffer strip (5) is provided between the short frame (4) of the tile-locked joint; The long frame (3) is provided with a folded edge (33) that overlaps the photovoltaic bracket (1); One or more water inlet channels (14) are provided on the photovoltaic support (1); A pressure block (6) is pressed on the folded edge (33), and a bolt (7) threadedly connected to the photovoltaic bracket (1) is passed through the pressure block (6). When the bolt (7) is tightened, it drives the pressure block (6) to press the folded edge (33) onto the photovoltaic bracket (1).

2. The rooftop photovoltaic system according to claim 1, characterized in that: The long frame (3) and short frame (4) are provided with a first accommodating cavity (32) and a second accommodating cavity (43) for inserting frame corner codes to realize the combination of adjacent long frame (3) and short frame (4).

3. The rooftop photovoltaic system according to claim 2, characterized in that: The photovoltaic bracket (1) is configured as a closed profile formed by bending steel plates and welding the two ends together, or a closed profile formed by bending steel plates and interlocking the two ends.

4. The rooftop photovoltaic system according to claim 2, characterized in that: The photovoltaic bracket (1) is configured as an open profile formed by bending a steel plate.

5. The rooftop photovoltaic system according to claim 1, characterized in that: The long frame (3) and the short frame (4) are provided with a first corner code connecting edge (35) and a second corner code connecting edge (44) for fixed connection of the frame corner code to realize the matching of adjacent long frame (3) and short frame (4).

6. The rooftop photovoltaic system according to claim 5, characterized in that: The photovoltaic bracket (1) is configured as an open profile formed by bending a steel plate.

7. The rooftop photovoltaic system according to claim 6, characterized in that: A pressure block (6) is pressed on the connecting plate (13), and a bolt (7) threaded through the pressure block (6) is threaded onto the roof. When the bolt (7) is tightened, it drives the pressure block (6) to press the connecting plate (13) onto the roof.

8. The rooftop photovoltaic system according to any one of claims 1 to 4, characterized in that: The connecting plate (13) is fixedly connected to the roof bolts.

9. The rooftop photovoltaic system according to claim 8, characterized in that: The photovoltaic bracket (1) is also provided with an opening (16) to facilitate the connection of the connecting plate (13) with the roof bolts.

10. The rooftop photovoltaic system according to claim 9, characterized in that: A waterproof plug (8) is provided on the opening (16).

Images