A photovoltaic roofing system

Abstract

This utility model relates to a photovoltaic roofing system, comprising: a metal tile and a wind-resistant component; the metal tile includes a dovetail groove disposed on its upper surface, and a clamping member extending above the dovetail groove is disposed inside the dovetail groove by screws, with a photovoltaic panel disposed between the clamping member and the metal tile; the wind-resistant component is disposed between the metal tile and the photovoltaic panel. This utility model, by setting up components such as the metal tile, clamping member, and base plate, and through the cooperation between the dovetail groove, clamping member, screws, and base plate, allows the photovoltaic panel to be directly fixed to the top of the metal tile, thereby reducing the space between the photovoltaic panel and the metal tile, ensuring that the photovoltaic panel is as close to the metal tile as possible, reducing the height of the photovoltaic panel, and thus allowing airflow to contact the lower surface of the photovoltaic panel to a smaller extent, i.e., reducing the airflow contact area, thereby increasing wind resistance.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic roofing technology, and specifically to a photovoltaic roofing system. Background Technology

[0002] Photovoltaic roofs refer to a new type of building structure that combines solar photovoltaic modules with the building roof. The photovoltaic modules absorb solar energy and convert it into electrical energy. It not only has the functions of traditional roofs such as sheltering from wind and rain and heat insulation, but also realizes clean energy power generation. It is an important way to combine building energy conservation and renewable energy utilization.

[0003] Traditional photovoltaic roofs use metal tracks to support photovoltaic panels, creating a large airflow channel between the panels and the metal tiles. In strong winds, the airflow passing through this gap can generate upward lift. The rigid connection method relying solely on screws is insufficient to withstand wind impact, posing a risk of photovoltaic panels falling off. Therefore, a photovoltaic roof system is proposed to address the aforementioned problems. Utility Model Content

[0004] Based on the above description, this utility model provides a photovoltaic roofing system to solve the problem of insufficient wind resistance of traditional installation methods.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a photovoltaic roofing system, comprising: metal tiles and wind-resistant components;

[0006] The metal tile includes a dovetail groove on its upper surface, and a clamping member extending above the dovetail groove is provided inside the dovetail groove by screws. A photovoltaic panel is provided between the clamping member and the metal tile.

[0007] The wind-resistant component is disposed between the metal tile and the photovoltaic panel.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the metal tile includes a W-shaped tile body, with a dovetail groove provided at the symmetrical line on the upper surface of the W-shaped tile body. Connectors are provided on the upper surfaces of both ends of the W-shaped tile body. The connectors are C-shaped connectors, with the opening directions of the two connectors being the same and their sizes being different. The larger connector can be fitted over the smaller connector for connecting two adjacent metal tiles.

[0010] Furthermore, the clamping component includes a base plate disposed inside the dovetail groove, a clamping workpiece disposed above the metal tile, the clamping workpiece being an inverted V-shaped workpiece, and a screw being disposed on the top of the clamping workpiece, which passes through the clamping workpiece and the dovetail groove from top to bottom, the screw being threadedly connected to the base plate, and the upper surface of the photovoltaic panel being tightly fitted with the lower surface of the side plate of the clamping workpiece.

[0011] Furthermore, the wind-resistant component includes an I-beam support disposed between the clamping workpiece and the metal tile. The I-beam support includes a hollow cylinder and two limiting plates. The hollow cylinder is disposed between the two limiting plates and is sleeved on the outside of the screw.

[0012] Furthermore, a movable plate is provided below the photovoltaic panel and sleeved outside the hollow cylinder. A spring is provided between the movable plate and the upper limiting plate. The movable plate is separated from the photovoltaic panel and is in contact with the upper surface of the lower limiting plate.

[0013] Furthermore, the wind-resistant component includes a first wind-resistant member, which includes a first top plate located between the clamping workpiece and the metal tile. The photovoltaic panel is disposed between the side plate of the clamping workpiece and the first top plate. At least four first positioning holes are provided at the edge of the first top plate, and the screw passes through the first positioning holes.

[0014] Furthermore, at least two first stabilizing members are provided on the upper surface of the first top plate. The two first stabilizing members are respectively provided on both sides of the photovoltaic panel. The first stabilizing member is a stepped plate composed of a horizontal plate and an L-shaped plate. The top of the L-shaped top plate is provided with a horizontal plate. The lower surface of the horizontal plate is in contact with the upper surface of the photovoltaic panel, and the side of the photovoltaic panel is in contact with the vertical surface of the L-shaped plate.

[0015] Furthermore, a rectangular block is provided on the lower surface of the first top plate, which contacts the upper surface of the W-shaped tile. Ventilation holes are provided inside the rectangular block along the length of the dovetail groove, and the vertical cross-sectional area of ​​the ventilation holes gradually decreases along the length of the dovetail groove.

[0016] Furthermore, the wind-resistant component includes a second wind-resistant member, which includes a second top plate located between the clamping workpiece and the metal tile. The photovoltaic panel is disposed between the clamping workpiece side plate and the second top plate. At least four second positioning holes are provided at the edge of the second top plate, and the screw passes through the second positioning holes. At least two second stabilizing members are provided on the upper surface of the second top plate. The two second stabilizing members are respectively disposed on both sides of the photovoltaic panel. The second stabilizing member is a stepped plate composed of a horizontal plate and an L-shaped plate. The top of the L-shaped top plate is provided with a horizontal plate. The lower surface of the horizontal plate is in contact with the upper surface of the photovoltaic panel. The side of the photovoltaic panel is in contact with the vertical surface of the L-shaped plate. The lower surface of the second top plate is provided with at least one wind-blocking block and at least one set of vertical limiting members. The two vertical limiting members in one set are symmetrically distributed, and a placement plate is provided between the two vertical limiting members. The height of the placement plate facing the wind-blocking block is greater than its height away from the wind-blocking block, and an opening groove is provided on the lower surface away from the wind-blocking block.

[0017] Furthermore, a Tesla valve assembly is provided between the placement plate and the second top plate. The Tesla valve assembly includes a first plate, a second plate, a third plate, and a top cover plate arranged sequentially from top to bottom. The lower surfaces of the first plate, the second plate, and the third plate are all provided with Tesla flow channels. The lower surface of the top cover plate is provided with a threaded post that penetrates the opening slot. A nut that fits tightly against the lower surface of the placement plate is sleeved on the outside of the threaded post. The first plate, the second plate, the third plate, and the top cover plate are all provided with inclined surfaces on the side away from the wind deflector. The four inclined surfaces form a complete inclined surface. The air outlet of the Tesla flow channel is located on the side away from the wind deflector, and its air inlet is located on the side facing the wind deflector. There is a gap between the wind deflector and the placement plate.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0019] 1. This utility model, by setting up components such as metal tiles, clamping workpieces, and base plates, and through the cooperation between dovetail grooves, clamping workpieces, screws, and base plates, allows photovoltaic panels to be directly fixed to the top of the metal tiles, thereby reducing the space between the photovoltaic panels and the metal tiles, ensuring that the photovoltaic panels are as close to the metal tiles as possible, and allowing airflow to contact the lower surface of the photovoltaic panels to a smaller extent, that is, reducing the airflow action area, thus increasing wind resistance.

[0020] 2. By incorporating wind-resistant components, the wind resistance capability is increased. Different wind-resistant components employ different methods to resist wind, including:

[0021] The I-beam support, movable plate, and spring work together to form a buffer layer on the lower surface of the photovoltaic panel. When airflow suddenly impacts the lower surface of the photovoltaic panel, the buffer layer cushions the instantaneous impact force and reduces the negative impact of the instantaneous impact force.

[0022] The first wind-resistant component works by increasing the airflow velocity inside the ventilation hole as the vertical cross-sectional area of ​​the ventilation hole gradually decreases. According to the Bernoulli effect, the increased airflow velocity leads to decreased pressure. With atmospheric pressure remaining constant, both the first wind-resistant component and the photovoltaic panel are subjected to downward pressure under the influence of the pressure difference, thereby increasing wind resistance.

[0023] The second wind-resistant component and the Tesla valve assembly work together so that as the airflow passes through the space between the metal tile and the second wind-resistant component, some of the airflow enters the valve from the outlet of the Tesla valve. Due to the characteristics of the Tesla valve, the airflow entering from the outlet will be reduced by the component consumption, thereby reducing the negative impact of the airflow. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of a photovoltaic roofing system provided in this embodiment of the present invention;

[0025] Figure 2 for Figure 1 Structural sectional view;

[0026] Figure 3 for Figure 2 Another structural diagram from another perspective;

[0027] Figure 4 for Figure 3 A magnified view of a portion of region A in the middle;

[0028] Figure 5 This is a schematic diagram of the structure of the metal tile in an embodiment of this utility model;

[0029] Figure 6 This is a schematic diagram of the clamping component in an embodiment of the present utility model;

[0030] Figure 7 This is a schematic diagram of the wind-resistant component in Embodiment 1 of this utility model;

[0031] Figure 8 This is a schematic diagram of the wind-resistant component in Embodiment 2 of this utility model;

[0032] Figure 9 for Figure 8 Another structural diagram from another perspective;

[0033] Figure 10 for Figure 9 Another structural diagram from another perspective;

[0034] Figure 11 This is a schematic diagram of the structure of the first wind-resistant component in an embodiment of the present invention;

[0035] Figure 12 This is a schematic diagram of the wind-resistant component in Embodiment 3 of this utility model;

[0036] Figure 13 for Figure 12 Another structural diagram from another perspective;

[0037] Figure 14 for Figure 13 Another structural diagram from another perspective;

[0038] Figure 15 This is a schematic diagram of the structure of the second wind-resistant component in an embodiment of this utility model;

[0039] Figure 16 for Figure 15 Another structural diagram from another perspective;

[0040] Figure 17 This is a schematic diagram of the Tesla valve assembly in an embodiment of the present invention;

[0041] Figure 18 for Figure 17 Explosion-proof diagram of the structure;

[0042] The attached diagram lists the components represented by each number as follows:

[0043] 1. Metal tile; 11. W-shaped tile body; 12. Dovetail groove; 13. Connector; 2. Clamping workpiece; 3. Base plate; 4. Photovoltaic panel; 5. I-beam support; 6. Movable plate; 7. Spring; 8. First wind-resistant component; 81. First top plate; 82. First positioning hole; 83. First stabilizing component; 84. Rectangular block; 85. Ventilation hole; 9. Second wind-resistant component; 91. Second top plate; 92. Second positioning hole; 93. Second stabilizing component; 94. Vertical limiting component; 95. Placement plate; 96. Windbreak block; 97. Opening groove; 10. Tesla valve assembly; 101. First plate; 102. Second plate; 103. Third plate; 104. Top cover plate; 105. Tesla flow channel; 106. Threaded column; 107. Inclined surface. Detailed Implementation

[0044] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0046] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0047] Example 1

[0048] Please see Figure 1 and Figure 5 A photovoltaic roofing system includes: a metal tile 1 and a wind-resistant component;

[0049] The metal tile 1 includes a dovetail groove 12 disposed on its upper surface. Inside the dovetail groove 12, a clamping member extending above the dovetail groove 12 is disposed by screws. A photovoltaic panel 4 is disposed between the clamping member and the metal tile 1.

[0050] The metal tile 1 includes a W-shaped tile body 11. A dovetail groove 12 is provided at the symmetrical line of the upper surface of the W-shaped tile body 11. A connector 13 is provided on the upper surface of both ends of the W-shaped tile body 11. The connector 13 is a C-shaped connector. The opening directions of the two connectors 13 are the same, but the sizes are different. The larger connector 13 can be fitted over the smaller connector 13 for connecting two adjacent metal tiles 1.

[0051] like Figure 6 As shown, the clamping component includes a base plate 3 disposed inside the dovetail groove 12, a clamping workpiece 2 disposed above the metal tile 1, the clamping workpiece 2 being an inverted V-shaped workpiece, a screw being disposed on the top of the clamping workpiece 2, which passes through the clamping workpiece 2 and the dovetail groove 12 sequentially from top to bottom, the screw being threadedly connected to the base plate 3, and the upper surface of the photovoltaic panel 4 being tightly fitted to the lower surface of the side plate of the clamping workpiece 2;

[0052] like Figures 2-4As shown, the wind-resistant component is disposed between the metal tile 1 and the photovoltaic panel 4. The wind-resistant component includes an I-beam support 5 disposed between the clamping workpiece 2 and the metal tile 1. The I-beam support 5 includes a hollow cylinder and two limiting plates. The hollow cylinder is disposed between the two limiting plates and is sleeved on the outside of the screw. A movable plate 6 is disposed below the photovoltaic panel 4 and sleeved on the outside of the hollow cylinder. A spring 7 is disposed between the movable plate 6 and the upper limiting plate. The movable plate 6 is separated from the photovoltaic panel 4 and is in contact with the upper surface of the lower limiting plate.

[0053] Based on the above, the dovetail groove 12 allows the base plate 3 to be placed in it, and the screws connect the clamping workpiece 2 to the base plate 3, thereby achieving the effect of connecting the clamping workpiece 2 to the metal tile 1. Compared with the traditional connection method, this method abandons the metal track, which reduces the distance between the metal tile 1 and the photovoltaic panel 4, thereby reducing the possibility of airflow acting on the lower surface of the photovoltaic panel 4.

[0054] The photovoltaic panel 4 is blown up because the high-speed airflow generated by the strong wind acts on the photovoltaic panel 4, providing an upward lift force. This lift force mostly acts on the lower surface of the photovoltaic panel 4. Therefore, by setting up a movable plate 6, the airflow is made to come into contact with the movable plate 6 first. At the moment the airflow suddenly contacts the movable plate 6, the movable plate 6 moves upward and compresses the spring 7, reducing the negative impact of the instantaneous airflow impact. In other words, this method reduces the damage caused by the instantaneous impact by avoiding direct contact between the airflow and the photovoltaic panel 4 and buffering the instantaneous impact force, thereby increasing the wind resistance.

[0055] Buffer wind-resistant installation

[0056] Metal tile installation:

[0057] Arrange the W-shaped tile bodies 11 in sequence and fix them together by C-shaped connectors 13. The overlap length of adjacent tile bodies is 50mm, and the joint is coated with silicone sealant.

[0058] Photovoltaic panel 4 fixing:

[0059] Embed the base plate 3 into the dovetail groove 12, and place the photovoltaic panel 4 on the upper surface of the metal tile to cover the base plate position;

[0060] Install clamping workpiece 2 to press the photovoltaic panel against the lower surface of the side plate. Connect the top plate of clamping workpiece 2 and the photovoltaic panel to the bottom plate with M6 screws through M6 screws, and control the torque at 8-10 N·m.

[0061] Wind-resistant component installation:

[0062] Five I-beam support pieces are fitted onto the outside of the screw, and the limiting plates are placed on the lower surface of the photovoltaic panel and the upper surface of the metal tile, respectively.

[0063] Install the movable plate 6 and the spring 7, ensuring that the movable plate 6 can slide freely and the spring is in a pre-compressed state.

[0064] Example 2

[0065] like Figures 8-10 As shown, based on Embodiment 1, the wind-resistant component is replaced. The wind-resistant component includes a first wind-resistant part 8. The first wind-resistant part 8 includes a first top plate 81 located between the clamping workpiece 2 and the metal tile 1. The photovoltaic panel 4 is disposed between the side plate of the clamping workpiece 2 and the first top plate 81. At least four first positioning holes 82 are provided at the edge of the first top plate 81. The screw passes through the first positioning holes 82.

[0066] The upper surface of the first top plate 81 is provided with at least two first stabilizing members 83. The two first stabilizing members 83 are respectively provided on both sides of the photovoltaic panel 4. The first stabilizing member 83 is a stepped plate composed of a horizontal plate and an L-shaped plate. The top of the L-shaped top plate is provided with a horizontal plate. The lower surface of the horizontal plate is in contact with the upper surface of the photovoltaic panel 4, and the side of the photovoltaic panel 4 is in contact with the vertical surface of the L-shaped plate.

[0067] The lower surface of the first top plate 81 is provided with a rectangular block 84 that contacts the upper surface of the W-shaped tile body 11. The interior of the rectangular block 84 is provided with ventilation holes 85 along the length of the dovetail groove 12. The vertical cross-sectional area of ​​the ventilation holes 85 gradually decreases along the length of the dovetail groove 12.

[0068] Based on the above, when the airflow passes through the ventilation hole 85, due to the gradual reduction of the vertical cross-sectional area, the airflow velocity increases and the air pressure decreases under the action of the Venturi effect and the Bernoulli effect. At this time, the lower surface of the rectangular block 84 is closely attached to the upper surface of the W-shaped tile 11, and the upper surface of the first top plate 81 is also in contact with the lower surface of the photovoltaic panel 4. Therefore, the lower surface of the rectangular block 84 and the upper surface of the first top plate 81 will not be subjected to atmospheric pressure. After the air pressure inside the ventilation hole 85 decreases, an air pressure difference is formed with the atmosphere. Under the action of the first stabilizing member 83 and the downward pressure difference, the photovoltaic panel 4, the first wind-resistant member 8 and the metal tile 1 are more closely attached, thereby increasing the wind resistance.

[0069] Wind-resistant installation due to air pressure difference

[0070] First wind-resistant component 8 assembly:

[0071] A first top plate 81 is placed between the workpiece 2 and the metal tile 1, and a screw passes through the first positioning hole 82 and is connected to the bottom plate 3.

[0072] The first stabilizing member 83 is attached to the side of the photovoltaic panel 4 through the vertical surface of the L-shaped plate, and a 0.5mm gap is reserved between the lower surface of the horizontal plate and the upper surface of the photovoltaic panel 4.

[0073] The first wind-resistant component 8 is installed at an angle downwards along the roof, with the ventilation hole 85 facing upwards on the side with the larger vertical cross-sectional area and upwards on the side with the smaller vertical cross-sectional area.

[0074] Airflow characteristics verification:

[0075] Using CFD simulation, when the wind speed is 25 m / s (level 10 wind), the flow velocity at the ventilation hole outlet reaches 50 m / s, the air pressure on the lower surface of the photovoltaic panel decreases by about 400 Pa, and the wind resistance is improved by 30%.

[0076] Example 3

[0077] like Figures 12-16 As shown; based on Embodiment 1, the wind-resistant component is replaced. The wind-resistant component includes a second wind-resistant element 9, which includes a second top plate 91 located between the clamping workpiece 2 and the metal tile 1. The photovoltaic panel 4 is disposed between the side plate of the clamping workpiece 2 and the second top plate 91. At least four second positioning holes 92 are provided at the edge of the second top plate 91, and the screws pass through the second positioning holes 92. At least two second stabilizing elements 93 are provided on the upper surface of the second top plate 91. The two second stabilizing elements 93 are respectively disposed on both sides of the photovoltaic panel 4. The second stabilizing element 93 consists of a horizontal plate and an L-shaped... The L-shaped top plate is composed of stepped plates. A horizontal plate is provided at the top of the L-shaped top plate. The lower surface of the horizontal plate is in contact with the upper surface of the photovoltaic panel 4. The side of the photovoltaic panel 4 is in contact with the vertical surface of the L-shaped plate. The lower surface of the second top plate 91 is provided with at least one windbreak block 96 and at least one set of vertical limiting members 94. The two vertical limiting members 94 in one set are symmetrically distributed, and a placement plate 95 is provided between the two vertical limiting members 94. The height of the placement plate 95 facing the windbreak block 96 is greater than the height of the side facing away from the windbreak block 96, and an opening groove 97 is provided on the lower surface facing away from the windbreak block 96.

[0078] like Figure 17 and Figure 18As shown, a Tesla valve assembly 10 is disposed between the placement plate 95 and the second top plate 91. The Tesla valve assembly 10 includes a first plate 101, a second plate 102, a third plate 103, and a top cover plate 104 arranged sequentially from top to bottom. The lower surfaces of the first plate 101, the second plate 102, and the third plate 103 are all provided with Tesla flow channels 105. The lower surface of the top cover plate 104 is provided with a threaded post 106 that penetrates the opening slot 97. The outer sleeve of the threaded post 106 is... A nut is provided that fits tightly against the lower surface of the placement plate 95. The first plate 101, the second plate 102, the third plate 103 and the top cover plate 104 are all provided with inclined surfaces 107 on the side away from the wind deflector block 96. The four inclined surfaces 107 form a complete inclined surface. The air outlet of the Tesla flow channel 105 is located on the side away from the wind deflector block 96, and its air inlet is located on the side facing the wind deflector block 96. There is a gap between the wind deflector block 96 and the placement plate 95.

[0079] Based on the above, the setting of the second wind-resistant component 9 enables the Tesla valve assembly 10 to be installed between the metal tile 1 and the photovoltaic panel 4. When the airflow flows through the vertical limiting component 94, part of the airflow enters the interior of the Tesla flow channel 105 from the air outlet of the Tesla valve. This part of the airflow is gradually consumed as it flows along the Tesla flow channel 105, thereby reducing the negative impact caused by the airflow and increasing the wind resistance.

[0080] Example 3: Wind-resistant installation of Tesla valve

[0081] Tesla Valve Assembly 10 Integration:

[0082] The first plate 101, the second plate 102, and the third plate 103 are stacked in sequence with the flow channels in the same direction, and fixed to the placement plate 95 by the threaded post of the top cover plate 104;

[0083] Adjust the gap between the wind deflector 96 and the placement plate to 10mm to ensure that the airflow can enter the flow channel through the gap;

[0084] The Tesla valve has two ends. One end is for airflow to enter. After the airflow velocity is increased, it is discharged from the other end. The end for air intake is the air inlet, and the opposite end is the air outlet. After the airflow enters from the air outlet, the airflow will be gradually consumed.

[0085] When the Tesla valve assembly 10 is installed, the side of the Tesla valve assembly 10 away from the wind deflector 96 faces downward along the sloping roof, while the wind deflector 96 faces upward along the sloping roof.

[0086] Wind resistance performance test:

[0087] In wind tunnel tests, when the wind speed is 30 m / s (level 11 wind), the airflow pressure through the Tesla valve group drops from 500 Pa to 90 Pa, and the uplift force of the photovoltaic panel decreases by 82%.

[0088] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A photovoltaic roofing system, characterized in that, include: Metal roofing sheet (1) and wind-resistant components; The metal tile (1) includes a dovetail groove (12) disposed on its upper surface. Inside the dovetail groove (12), a clamping member extending above the dovetail groove (12) is disposed by screws. A photovoltaic panel (4) is disposed between the clamping member and the metal tile (1). The wind-resistant component is disposed between the metal tile (1) and the photovoltaic panel (4).

2. The photovoltaic roofing system according to claim 1, characterized in that, The metal tile (1) includes a W-shaped tile body (11). A dovetail groove (12) is provided at the symmetrical line on the upper surface of the W-shaped tile body (11). A connector (13) is provided on the upper surface of both ends of the W-shaped tile body (11). The connector (13) is a C-shaped connector. The opening directions of the two connectors (13) are the same, but their sizes are different. The larger connector (13) can be fitted over the smaller connector (13) to connect two adjacent metal tiles (1).

3. The photovoltaic roofing system according to claim 2, characterized in that, The clamping component includes a base plate (3) disposed inside the dovetail groove (12), a clamping workpiece (2) is disposed above the metal tile (1), the clamping workpiece (2) is an inverted V-shaped workpiece, the top of the clamping workpiece (2) is provided with screws that pass through the clamping workpiece (2) and the dovetail groove (12) from top to bottom, the screws are threadedly connected to the base plate (3), and the upper surface of the photovoltaic panel (4) is closely fitted with the lower surface of the side plate of the clamping workpiece (2).

4. The photovoltaic roofing system according to claim 3, characterized in that, The wind-resistant component includes an I-beam support (5) disposed between the clamping workpiece (2) and the metal tile (1). The I-beam support (5) includes a hollow cylinder and two limiting plates. A hollow cylinder is disposed between the two limiting plates and is sleeved on the outside of the screw.

5. The photovoltaic roofing system according to claim 4, characterized in that, A movable plate (6) is provided below the photovoltaic panel (4) and sleeved outside the hollow cylinder. A spring (7) is provided between the movable plate (6) and the upper limiting plate. The movable plate (6) is separated from the photovoltaic panel (4) and is in contact with the upper surface of the lower limiting plate.

6. The photovoltaic roofing system according to claim 3, characterized in that, The wind-resistant component includes a first wind-resistant element (8), which includes a first top plate (81) located between the clamping workpiece (2) and the metal tile (1). The photovoltaic panel (4) is disposed between the side plate of the clamping workpiece (2) and the first top plate (81). At least four first positioning holes (82) are provided at the edge of the first top plate (81), and the screw passes through the first positioning holes (82).

7. The photovoltaic roofing system according to claim 6, characterized in that, The upper surface of the first top plate (81) is provided with at least two first stabilizing members (83). The two first stabilizing members (83) are respectively provided on both sides of the photovoltaic panel (4). The first stabilizing member (83) is a stepped plate composed of a horizontal plate and an L-shaped plate. The top of the L-shaped top plate is provided with a horizontal plate. The lower surface of the horizontal plate is in contact with the upper surface of the photovoltaic panel (4). The side of the photovoltaic panel (4) is in contact with the vertical surface of the L-shaped plate.

8. The photovoltaic roofing system according to claim 7, characterized in that, The lower surface of the first top plate (81) is provided with a rectangular block (84) that contacts the upper surface of the W-shaped tile body (11). The interior of the rectangular block (84) is provided with ventilation holes (85) along the length of the dovetail groove (12). The vertical cross-sectional area of ​​the ventilation holes (85) gradually decreases along the length of the dovetail groove (12).

9. The photovoltaic roofing system according to claim 3, characterized in that, The wind-resistant component includes a second wind-resistant element (9), which includes a second top plate (91) located between the clamping workpiece (2) and the metal tile (1). The photovoltaic panel (4) is disposed between the side plate of the clamping workpiece (2) and the second top plate (91). At least four second positioning holes (92) are provided at the edge of the second top plate (91), and the screw passes through the second positioning holes (92). At least two second stabilizing elements (93) are provided on the upper surface of the second top plate (91). The two second stabilizing elements (93) are respectively disposed on both sides of the photovoltaic panel (4). The second stabilizing element (93) is a stepped structure composed of a horizontal plate and an L-shaped plate. The L-shaped top plate has a horizontal plate on its top. The lower surface of the horizontal plate is in contact with the upper surface of the photovoltaic panel (4). The side of the photovoltaic panel (4) is in contact with the vertical surface of the L-shaped plate. The lower surface of the second top plate (91) is provided with at least one windbreak block (96) and at least one set of vertical limiting members (94). The two vertical limiting members (94) are symmetrically distributed, and a placement plate (95) is provided between the two vertical limiting members (94). The height of the placement plate (95) facing the windbreak block (96) is greater than the height of the side away from the windbreak block (96). The lower surface of the side away from the windbreak block (96) is provided with an opening groove (97).

10. The photovoltaic roofing system according to claim 9, characterized in that, A Tesla valve assembly (10) is provided between the placement plate (95) and the second top plate (91). The Tesla valve assembly (10) includes a first plate (101), a second plate (102), a third plate (103), and a top cover plate (104) arranged sequentially from top to bottom. The lower surfaces of the first plate (101), the second plate (102), and the third plate (103) are all provided with Tesla flow channels (105). The lower surface of the top cover plate (104) is provided with a threaded post (106) that penetrates the opening slot (97). The outer surface of the threaded post (106) A nut is fitted to fit tightly against the lower surface of the placement plate (95). The first plate (101), the second plate (102), the third plate (103), and the top cover plate (104) are all provided with inclined surfaces (107) on the side away from the wind deflector block (96). The four inclined surfaces (107) form a complete inclined surface. The air outlet of the Tesla flow channel (105) is located on the side away from the wind deflector block (96), and its air inlet is located on the side facing the wind deflector block (96). There is a gap between the wind deflector block (96) and the placement plate (95).

Images