Wind-resistant connection structure of a photovoltaic support

Abstract

The utility model relates to photovoltaic module connection technical field, concretely relates to a kind of wind-resistant connection structure of photovoltaic support, including side pressure block, fastener and U-shaped bolt, side pressure block includes abutting plate, step plate and pressure plate sequentially arranged, anti-skid pad is embedded on the side surface of abutting plate, anti-skid pad is used to abut purlin top surface, step plate is equipped with first connecting hole, pressure plate is used to crimp photovoltaic panel, fastener is held with purlin bottom, fastener is equipped with second connecting hole, U-shaped bolt passes through first connecting hole and second connecting hole, the both ends of U-shaped bolt are respectively equipped with at least two locking nuts. By setting abutting plate and embedding protective pad on abutting plate, setting fastener and purlin hold, the contact area of connection structure and purlin can be increased, make side pressure block setting stable, the force that can resist side pressure block under wind action relative to purlin top surface moves, improve the overall wind-resistant effect of connection structure.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module connection technology, and specifically to a wind-resistant connection structure for a photovoltaic support. Background Technology

[0002] The installation and fixing of outdoor photovoltaic modules are mainly achieved by combining purlin brackets with connectors including fasteners and bolts. Under the action of wind, the brackets are prone to swaying, and the fasteners and bolts are prone to loosening. Improving the wind resistance of photovoltaic modules has always been an important goal of the photovoltaic installation industry.

[0003] Chinese patent CN207399070U discloses an improved purlin connector, which uses a U-shaped clamp assembly and an inverted L-shaped plate to fix the photovoltaic panel to the purlin. This can improve the wind resistance of the photovoltaic panel to a certain extent. However, the L-shaped plate has a wide surface area, and under the continuous wind force at high altitudes, the stress area is wide. The connection between the bolt and the U-shaped clamp is still prone to loosening, especially the connection structure located at the outer edge of the photovoltaic module, which is more prone to loosening than the connection structure in the middle area. This leads to a gradual weakening of the fixing effect, requiring regular maintenance and inspection, which increases labor costs. However, the high cost and risk of personnel working in high-altitude areas are not conducive to the smooth maintenance and inspection of outdoor photovoltaic modules. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology where the wind resistance of the connection structure at the outer edge of the photovoltaic module needs to be further improved, and to provide a wind-resistant connection structure for a photovoltaic support.

[0005] This utility model provides a wind-resistant connection structure for a photovoltaic support system, comprising: The edge pressing block includes an abutment plate, a stepped plate and a pressure plate arranged in sequence. An anti-slip pad is embedded on one side of the abutment plate. The anti-slip pad is used to abut against the top surface of the purlin. The stepped plate is provided with a first connecting hole. The pressure plate is used to press the photovoltaic panel. The fastener engages with the bottom of the purlin and has a second connecting hole. The U-shaped bolt passes through the first connecting hole and the second connecting hole, and at least two locking nuts are respectively provided at both ends of the U-shaped bolt.

[0006] This utility model discloses a wind-resistant connection structure for a photovoltaic bracket. By setting an abutment plate, the contact area between the side pressure block and the purlin is increased, which can resist the force of the side pressure block moving relative to the top surface of the purlin under wind force, thus stabilizing the side pressure block. At the same time, by embedding a protective pad on the abutment plate, the contact friction between the side pressure block and the purlin is further increased, further improving the stability of the side pressure block. In addition, by using fasteners to hold the purlin, the contact area between the connection structure and the purlin is further increased, making it less likely for the fasteners to shift relative to the purlin, thus improving the stability of the fasteners. Furthermore, by using multiple locking nuts on the U-bolts, the locking nuts are locked together, making it less likely to loosen. The cooperation of all components can improve the overall wind resistance of the connection structure.

[0007] Preferably, the stepped plate includes a first vertical plate, a connecting plate, and a second vertical plate arranged vertically in sequence. The first vertical plate intersects the abutment plate perpendicularly, and the second vertical plate intersects the pressure plate perpendicularly. Two first connecting holes are arranged on the connecting plate, and the first connecting holes include strip-shaped holes.

[0008] Preferably, a first arc-shaped surface is provided between the first vertical plate and the connecting plate, a second arc-shaped surface is provided between the connecting plate and the second vertical plate, and a third arc-shaped surface is provided between the second vertical plate and the pressure plate. The first arc-shaped surface, the second arc-shaped surface, and the third arc-shaped surface are provided on the side of the edge pressure block away from the photovoltaic panel.

[0009] Preferably, the top of the pressure plate is provided with an arc-shaped convex surface, and the arc-shaped convex surface transitions with the arc surface of the third arc-shaped surface.

[0010] Preferably, the second vertical plate and the pressure plate are respectively provided with anti-slip parts on the side surface near the photovoltaic panel.

[0011] Preferably, the anti-slip component includes a rubber strip or a silicone sheet.

[0012] Preferably, the edge of the pressure plate away from the stepped plate is provided with a reverse buckling edge, which can abut against the photovoltaic panel for positioning.

[0013] Preferably, the fastener includes a retaining portion, and connecting portions are respectively provided at both ends of the retaining portion. The connecting portions are parallel to the abutment plate, and the connecting portions are provided with the second connecting hole.

[0014] Preferably, the second connecting hole includes a strip hole or a round hole.

[0015] Preferably, the anti-slip mat comprises a rubber sheet.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a wind-resistant connection structure for a photovoltaic bracket. By setting an abutment plate to increase the contact area between the side pressure block and the purlin, it can resist the force of the side pressure block moving relative to the top surface of the purlin under the action of wind, so as to stabilize the side pressure block. 2. This utility model provides a wind-resistant connection structure for a photovoltaic bracket. By embedding a protective pad on the abutment plate, the contact friction between the edge pressure block and the purlin can be further increased, thereby further improving the stability of the edge pressure block. 3. This utility model provides a wind-resistant connection structure for photovoltaic brackets. By using fasteners to hold the brackets in place with the purlins, the contact area between the connection structure and the purlins can be further increased, making it less likely for the fasteners to shift relative to the purlins and improving the stability of the fastener installation. 4. This utility model provides a wind-resistant connection structure for photovoltaic brackets. By equipping the U-bolt with multiple locking nuts, the locking nuts are locked together and are not easy to loosen. The cooperation of each component can improve the overall wind resistance of the connection structure. Attached Figure Description

[0017] Figure 1 This is a side view of a wind-resistant connection structure for a photovoltaic bracket in Example 1.

[0018] Figure 2 This is a front view of a wind-resistant connection structure for a photovoltaic bracket in Example 1.

[0019] Figure 3 This is a schematic diagram of the edge pressure block described in Example 1.

[0020] Figure 4 This is a front view of the wind-resistant connection structure of a photovoltaic bracket in use, as shown in Example 1.

[0021] Figure 5 This is a diagram showing the usage status of a wind-resistant connection structure for a photovoltaic bracket in Example 1.

[0022] Marked in the image: 1-Side pressure block, 11-Abutting plate, 12-Step plate, 121-First vertical plate, 122-Connecting plate, 123-Second vertical plate, 13-Pressure plate, 14-Arc-shaped convex surface, 15-First connecting hole, 16-First arc-shaped surface, 17-Second arc-shaped surface, 18-Third arc-shaped surface, 2-Anti-slip pad, 3-Fastener, 31-Second connecting hole, 32-Clamping part, 33-Connecting part, 4-U-bolt, 5-Locking nut, 6-Anti-slip component, 7-Reverse buckle edge, 8-Purlin, 9-Photovoltaic panel. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0024] Unless otherwise specified, the terms "upper," "lower," "left," "right," "center," "inner," and "outer" used in the description of specific embodiments of this utility model to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is usually placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, and for enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0026] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0027] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0028] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0029] Example 1 like Figures 1-5 As shown, a wind-resistant connection structure for a photovoltaic bracket includes a side pressure block 1, a fastener 3, a U-bolt 4, and a locking nut 5.

[0030] like Figure 3 As shown, the edge pressing block 1 is an integral aluminum alloy or stainless steel component composed of an abutment plate 11, a stepped plate 12, and a pressure plate 13. An anti-slip pad 2 is embedded on one side of the abutment plate 11, which abuts against the top surface of the purlin 8. The stepped plate 12 has a first connecting hole 15. The pressure plate 13 is used to press the photovoltaic panel 9. By pressing the edge pressing block 1 from top to bottom against the edges of the purlin 8 and the individual photovoltaic panel 9, the photovoltaic panel 9 is pressed and fixed. Figure 2 As shown, the fastener 3 is an aluminum alloy or stainless steel component. The fastener 3 is engaged with the bottom of the purlin 8. The fastener 3 is provided with a second connecting hole 31. The fastener 3 is used to hold the bottom of the purlin 8 from bottom to top. The U-bolt 4 passes through the first connecting hole 15 and the second connecting hole 31. Two locking nuts 5 are respectively provided at both ends of the U-bolt 4. The side pressure block 1 and the fastener 3 are connected by the U-bolt 4 and the locking nuts 5, so that the photovoltaic panel 9 is stably restricted on the purlin 8, and the photovoltaic panel 9 is stably installed.

[0031] In an optional embodiment, the anti-slip mat 2 can be made of rubber sheet, and the bottom of the abutment plate 11 can be provided with a groove. The rubber sheet can be embedded in the groove and its thickness is greater than the groove depth, so that the rubber sheet can partially extend out of the bottom surface of the abutment plate 11. Under the clamping action of the edge pressure block 1 and the fastener 3, it fits tightly with the purlin 8, achieving a better anti-slip and stable effect.

[0032] In an optional embodiment, the anti-slip pad 2 may be provided with several protruding ridges to further improve the anti-slip effect of the anti-slip pad 2, increase the friction between the edge pressure block 1 and the purlin 8, and improve the stability of the edge pressure block 1.

[0033] In optional implementations, such as Figure 3As shown, the stepped plate 12 includes a first vertical plate 121, a connecting plate 122, and a second vertical plate 123 arranged vertically in sequence. The first vertical plate 121 intersects the abutment plate 11 perpendicularly, and the second vertical plate 123 intersects the pressure plate 13 perpendicularly. Two first connecting holes 15 are arranged on the connecting plate 122. Through the stepped structure of the stepped plate 12, the stepped plate 12 matches the height difference between the photovoltaic panel 9 and the purlin 8. The pressure plate 13 and the abutment plate 11 are connected by the stepped plate 12, so that the pressure plate 13 and the abutment plate 11 are in surface contact with the photovoltaic panel 9 and the purlin 8. This allows for the simultaneous application of downward pressure without stress concentration, resulting in a more stable connection and improved wind resistance of the connection structure.

[0034] In optional implementations, such as Figure 5 As shown, the first connecting hole 15 includes a strip-shaped hole. This allows the U-bolt 4 to move slightly relative to the first connecting hole 15, enabling adjustment of the pressing position of the edge pressure block 1, thereby improving the flexibility of the connection structure and expanding its application range.

[0035] In one or more implementations, such as Figure 3 As shown, a first arc-shaped surface 16 is provided between the first vertical plate 121 and the connecting plate 122, a second arc-shaped surface 17 is provided between the connecting plate 122 and the second vertical plate 123, and a third arc-shaped surface 18 is provided between the second vertical plate 123 and the pressure plate 13. The first arc-shaped surface 16, the second arc-shaped surface 17, and the third arc-shaped surface 18 are located on the side of the edge pressure block 1 away from the photovoltaic panel 9. The first arc-shaped surface 16, the second arc-shaped surface 17, and the third arc-shaped surface 18 can be formed by mechanical processing or additionally provided. The arrangement of the first arc-shaped surface 16, the second arc-shaped surface 17, and the third arc-shaped surface 18 can provide a smooth flow path for airflow, realize the dispersion of wind force, avoid the wind force to concentrate on the edge pressure block 1, and make it difficult for the edge pressure block 1 to move directly under the action of wind force.

[0036] In optional implementations, such as Figure 3 As shown, the top of the pressure plate 13 is provided with an arc-shaped convex surface 14, which transitions with the arc surface of the third arc-shaped surface 18. By providing an arc-shaped convex surface 14 on the top surface of the pressure plate 13, the airflow can be further guided, reducing the thrust acting vertically on the side pressure block 1.

[0037] In one or more embodiments, the second vertical plate 123 and the pressure plate 13 are respectively provided with anti-slip components 6 on the side surface near the photovoltaic panel 9. The second vertical plate 123 and the pressure plate 13 are in contact with the photovoltaic panel 9 on the side near the photovoltaic panel 9. By adding anti-slip components 6, it is beneficial to increase the friction between the edge pressure block 1 and the photovoltaic panel 9, so as to achieve an anti-slip effect and further improve the wind resistance of the edge pressure block 1.

[0038] In an optional embodiment, the anti-slip component 6 includes a rubber strip or a silicone sheet. The flexibility of the rubber strip or silicone sheet provides a cushioning effect under compression, reducing overall swaying caused by wind and preventing relative displacement at the contact points, thus preventing structural loosening and providing better wind resistance.

[0039] In one or more implementations, such as Figure 1 As shown, the edge of the pressure plate 13 away from the stepped plate 12 is provided with a snap-fit ​​edge 7, which can abut against the photovoltaic panel 9 for positioning. The snap-fit ​​edge 7 can be a hook-shaped structure formed by bending or extruding the edge of the pressure plate 13. The snap-fit ​​edge 7 can stabilize the connection between the edge pressure block 1 and the photovoltaic panel 9 when the edge pressure block 1 is pushed away from the photovoltaic panel 9, preventing movement along the surface of the photovoltaic panel 9 and ensuring the positioning stability of the photovoltaic panel 9.

[0040] In an optional embodiment, the fastener 3 includes a retaining portion 32, with connecting portions 33 at both ends of the retaining portion 32. The connecting portions 33 are parallel to the abutment plate 11, and the connecting portions 33 are provided with second connecting holes 31. The retaining portion 32 can form surface contact with the bottom surface and two side walls of the purlin 8. The connecting portion 33 can be a plate-shaped structural member provided on both sides of the retaining portion 32. The retaining portion 32 and the connecting portion 33 are an integral structural member. The connecting portion 33 can be provided with a second connecting hole 31 corresponding to the first connecting hole 15. The second connecting hole 31 is used to pass through both ends of the U-bolt 4. The second connecting hole 31 can be a round hole with a diameter larger than the outer diameter of the U-bolt 4, or it can be a strip-shaped hole adapted to the first connecting hole 15.

[0041] This embodiment provides a wind-resistant connection structure for a photovoltaic support system. In use, the edge pressure block 1 is pressed onto the photovoltaic panel 9 and the purlin 8. An abutment plate 11 is provided to increase the contact area between the edge pressure block 1 and the purlin 8, ensuring stable contact between the pressure plate 13 and the photovoltaic panel 9. Then, fasteners 3 are used to hold the purlin 8 from bottom to top. U-bolts 4 are passed through the corresponding first connecting hole 15 and second connecting hole 31 on the edge pressure block 1 and the fastener 3, and the connection is locked with a locking nut 5. This achieves a stable and limiting connection between the photovoltaic panel 9 and the purlin 8. Multiple wind-resistant connection structures are spaced apart on the purlin 8, which stably restricts the photovoltaic panel 9, and can resist the impact of wind on the edge pressure block 1. The force that moves relative to the top surface of the purlin 8 stabilizes the edge pressure block 1. Simultaneously, by embedding an anti-slip pad 2 on the abutment plate 11, the contact friction between the edge pressure block 1 and the purlin 8 is further increased, further improving the stability of the edge pressure block 1. Furthermore, by using fasteners 3 to hold the purlin 8, the contact area between the connecting structure and the purlin 8 is further increased, making it less likely for the fasteners 3 to shift relative to the purlin 8, thus improving the stability of the fasteners 3. In addition, by equipping the U-bolt 4 with multiple locking nuts 5, the locking nuts 5 are interlocked and not easily loosened. The cooperation of all components improves the overall wind resistance of the connecting structure.

[0042] 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 and improvements 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 wind-resistant connection structure for a photovoltaic support system, characterized in that, include: The edge pressing block (1) includes an abutment plate (11), a step plate (12) and a pressure plate (13) arranged in sequence. An anti-slip pad (2) is embedded on one side of the abutment plate (11) and the anti-slip pad (2) is used to abut the top surface of the purlin (8). The step plate (12) is provided with a first connecting hole (15). The pressure plate (13) is used to press the photovoltaic panel (9). Fastener (3), which engages with the bottom of purlin (8), and the fastener (3) is provided with a second connecting hole (31); A U-bolt (4) passes through the first connecting hole (15) and the second connecting hole (31), and at least two locking nuts (5) are respectively provided at both ends of the U-bolt (4).

2. The wind-resistant connection structure of a photovoltaic support according to claim 1, characterized in that, The stepped plate (12) includes a first vertical plate (121), a connecting plate (122), and a second vertical plate (123) arranged vertically in sequence. The first vertical plate (121) intersects the abutting plate (11) perpendicularly, and the second vertical plate (123) intersects the pressure plate (13) perpendicularly. Two first connecting holes (15) are arranged on the connecting plate (122), and the first connecting holes (15) include strip holes.

3. The wind-resistant connection structure of a photovoltaic support according to claim 2, characterized in that, A first arc-shaped surface (16) is provided between the first vertical plate (121) and the connecting plate (122), a second arc-shaped surface (17) is provided between the connecting plate (122) and the second vertical plate (123), and a third arc-shaped surface (18) is provided between the second vertical plate (123) and the pressure plate (13). The first arc-shaped surface (16), the second arc-shaped surface (17) and the third arc-shaped surface (18) are provided on the side of the edge pressure block (1) away from the photovoltaic panel (9).

4. The wind-resistant connection structure of a photovoltaic support according to claim 3, characterized in that, The top of the pressure plate (13) is provided with an arc-shaped convex surface (14), which transitions with the arc surface of the third arc-shaped surface (18).

5. The wind-resistant connection structure of a photovoltaic support according to claim 2, characterized in that, The second vertical plate (123) and the pressure plate (13) are respectively provided with anti-slip parts (6) on the side surface near the photovoltaic panel (9).

6. The wind-resistant connection structure of a photovoltaic support according to claim 5, characterized in that, The anti-slip component (6) includes a rubber strip or a silicone sheet.

7. The wind-resistant connection structure of a photovoltaic support according to claim 5, characterized in that, The pressure plate (13) has a snap-on edge (7) at its edge away from the step plate (12), and the snap-on edge (7) can be positioned and abutted against the photovoltaic panel (9).

8. A wind-resistant connection structure for a photovoltaic support according to any one of claims 1-7, characterized in that, The fastener (3) includes a retaining part (32), and connecting parts (33) are respectively provided at both ends of the retaining part (32). The connecting parts (33) are parallel to the abutment plate (11), and the connecting parts (33) are provided with the second connecting hole (31).

9. The wind-resistant connection structure of a photovoltaic support according to claim 8, characterized in that, The second connecting hole (31) includes a strip hole or a round hole.

10. The wind-resistant connection structure of a photovoltaic support according to claim 8, characterized in that, The anti-slip mat (2) includes a rubber sheet.

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