Photovoltaic panel underblock mounting structure with double wind resistance mechanism

Abstract

The utility model discloses photovoltaic board lower pressure block mounting structure with double anti -wind mechanism relates to photovoltaic shed subassembly design field, including U type gutter and photovoltaic board, the outer turning flange between the both sides of U type gutter upside is fixedly installed with reinforcing plate through bolt, and the middle part of reinforcing plate upside is formed with installation slot, and the upper edge position of left and right sides of installation slot is formed with limit edge, the bottom side edge of photovoltaic board is fixedly installed with the frame lower flange, and the frame lower flange clearance fit is installed in installation slot, and the both ends of reinforcing plate upside are fixedly installed with pressure block through bolt, and one end of pressure block near the frame lower flange is formed with T type flange, and one side of T type flange is clamped below limit edge, and the frame lower flange of photovoltaic board is arranged in the bottom side of T type flange and is pressed, compared with the prior art, the utility model sets up limit edge and T type flange, and realizes the strong wind to the mutual clamping limit of structure, guarantees the stable assembly of photovoltaic board on U type gutter.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic greenhouse module design, and in particular to a photovoltaic panel underweight block installation structure with a dual wind resistance mechanism. Background Technology

[0002] In prefabricated photovoltaic (PV) greenhouses, PV panels are typically installed on U-shaped or double-U-shaped trough purlins. Currently, the most common installation method on the market is assembly using pressure blocks, for example: 1. The prior art (announcement number: CN219372334U, announcement date: 2023.07.18) discloses an enhanced limiting type photovoltaic panel under-mount snap fastener kit, in which the reinforcing plate spans across the top of the water channel purlin and is locked to the outward flange of the water channel purlin by bolts. The reinforcing plate is also equipped with snap fasteners, which press against the lower flange of the outer frame of the photovoltaic panel for assembly.

[0003] 2. The prior art (announcement number: CN218861941U, announcement date: 2023.04.14) discloses a low-cost and high-safety U-shaped water trough purlin installation structure, in which the W-shaped connector serves as a reinforcing plate spanning across the water trough purlin, and the lower flange of the photovoltaic panel is fastened with metal fasteners to complete the assembly, and the components are locked together by bolts.

[0004] 3. In the prior art (Announcement No.: CN218374803U, Announcement Date: 2023.01.24), a quick installation structure for photovoltaic panels is disclosed. Metal fasteners are directly installed on the outward flange of the purlin, and an upward-protruding drip structure is set on the metal fastener to block the water flow. At the same time, it works with the double U-shaped water channel purlin to fasten the lower flange of the photovoltaic panel to complete the assembly.

[0005] The common feature of the above installation methods is that one end of the pressure block is fixed to the outward flange of the upper part of the water tank by bolts, and the other end presses down on the lower flange of the photovoltaic panel frame. However, under the action of upward wind force, the lower flange of the photovoltaic panel frame will form a lever effect on the flange bolt fixing point, which weakens the firmness of the photovoltaic panel fixing and causes rotational displacement effect. The greater the distance from the bolt to the flange of the module frame, the greater the lever arm, and the weaker the fixing effect of the pressure block on the photovoltaic panel.

[0006] Therefore, it is necessary to design a photovoltaic panel under-pressure block installation structure with a dual wind-resistant mechanism to solve the aforementioned technical problem of photovoltaic panel installation stability. Utility Model Content

[0007] To overcome the shortcomings mentioned above, this utility model provides a technical solution that can solve the above problems.

[0008] A photovoltaic panel underblock installation structure with dual wind resistance mechanism, including a U-shaped water tank and a photovoltaic panel; The upper side of the U-shaped water tank is bent outward to form outward flanges. A reinforcing plate is fixed between the two outward flanges by bolts. An installation groove is formed in the middle of the upper side of the reinforcing plate. Limiting edges are formed at the upper edges of the left and right sides of the installation groove. The bottom edge of the photovoltaic panel is fixedly installed with a lower flange of the frame. The lower flanges of the two photovoltaic panels are simultaneously installed in the mounting groove with a gap fit. The left and right ends of the upper side of the reinforcing plate are fixed with pressure blocks by bolts. The end of the pressure block near the lower flange of the frame is formed with a T-shaped flange. One side of the T-shaped flange is stuck below the limiting edge, and the bottom side of the T-shaped flange presses against the lower flange of the photovoltaic panel frame.

[0009] Furthermore, an installation gap is left between the limiting edge and the T-shaped flange.

[0010] Furthermore, the two photovoltaic panels within the installation slot are arranged symmetrically to each other.

[0011] Furthermore, the left and right sides of the reinforcing plate are bent downwards to form positioning folds, and the outward-flaring flanges on the left and right sides of the U-shaped water tank are correspondingly set on the inner side of the positioning folds.

[0012] Furthermore, the upper side of the reinforcing plate has two waterproof protrusions, and the mounting groove is located between the two waterproof protrusions.

[0013] Furthermore: a transition bevel is formed between the waterproof protrusion and the reinforcing plate, the angle between the upper surface of the reinforcing plate and the transition bevel is 0-90°, and an elastic bevel is formed on the pressure block, with the elastic bevel pressing one-to-one on the transition bevel.

[0014] Furthermore, the bottom side of the reinforcing plate has two inclined grooves, which are set one-to-one below the transition inclined edge. The included angle between the bottom surface of the reinforcing plate and the inclined groove is 0-90°, and the inclination angle of the inclined groove is the same as that of the transition inclined edge.

[0015] Furthermore, the bottom side of the reinforcing plate has two reinforcing edges, which are respectively set on the left and right sides of the bottom side of the mounting groove, and the reinforcing edges are set to protrude downwards.

[0016] Furthermore, elongated holes are formed on both ends of the reinforcing plate and on the two pressure blocks. The pressure blocks are locked to the reinforcing plate by means of bolts passing through the two elongated holes.

[0017] Furthermore, bolt holes are formed at the outward flange of the U-shaped water tank, and bolts are installed and locked by passing through the bolt holes and two elongated holes.

[0018] Compared with the prior art, the beneficial effects of this utility model are: 1. The pressure block and the reinforcing plate are bolted to the outward flange of the U-shaped water tank. After installation, the inside of the pressure block will press against the lower flange of the photovoltaic panel frame through the T-shaped flange to achieve stable assembly. 2. The T-shaped flange will be locked in the mounting groove of the reinforcing plate by the limiting edge. When subjected to upward wind force, the limiting edge can lock the T-shaped flange, thereby effectively preventing the pressure plate from deforming and ensuring the firmness of the photovoltaic panel. 3. During installation, the pressure block is inserted into the installation slot from the side of the reinforcing plate, so that the T-shaped flange is locked under the limiting edge, which facilitates actual assembly. The installation gap left between the limiting edge and the T-shaped flange ensures the convenience of installation.

[0019] This utility model is equipped with a limiting edge and a T-shaped flange. Through the interlocking and limiting of the structure, it can resist strong upward winds and ensure the stable assembly of photovoltaic panels on the U-shaped water tank.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural schematic diagram of the reinforcing plate and pressure block of this utility model; Figure 2 yes Figure 1 A schematic diagram of the exploded structure; Figure 3 This is a side view of the reinforcing plate. Figure 4 This is a top view of the reinforced plate structure. Figure 5 This is a side view of the compaction block. Figure 6 This is a top view of the compaction block. Figure 7 This is a side view of the structure when the reinforcing plate is placed on the U-shaped water tank; Figure 8 Is Figure 7 Schematic diagram of the structure when photovoltaic panels are placed on top; Figure 9 Is Figure 8 A schematic diagram of the structure after the upper side is fitted with the pressure block and the bolts are tightened; Figure 10 yes Figure 9 A magnified structural diagram at point A; Figure 11 yes Figure 9 A magnified structural diagram at point B; Figure 12 This is a schematic diagram of the stress structure of this utility model under normal climatic conditions; Figure 13 This is a schematic diagram of the stress structure of this utility model under the action of extremely strong winds.

[0023] The diagram shows: 1. U-shaped water tank; 2. Photovoltaic panel; 3. Outward-flaring flange; 4. Reinforcing plate; 5. Installation slot; 6. Limiting edge; 7. Lower flange of frame; 8. Pressure block; 9. T-shaped flange; 10. Installation gap; 11. Positioning fold; 12. Waterproof protrusion; 13. Transition bevel; 14. Elastic bevel; 15. Slanted groove; 16. Reinforcing edge; 17. Long hole; 18. Bolt hole. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0026] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 this utility model and simplifying the description, and do not 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 this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0029] like Figure 1-11 As shown, the photovoltaic panel underblock installation structure with dual wind resistance mechanism of this utility model includes a U-shaped water tank 1 and a photovoltaic panel 2; The U-shaped water tank 1 has outwardly bent flanges 3 on both sides of its upper side. A reinforcing plate 4 is fixed between the outwardly bent flanges 3 on both sides by bolts. An installation groove 5 is formed in the middle of the upper side of the reinforcing plate 4. A limiting edge 6 is formed on the upper edge of both sides of the installation groove 5. The bottom edge of the photovoltaic panel 2 is fixedly installed with a lower flange 7. The lower flanges 7 of the two photovoltaic panels 2 are simultaneously installed in the mounting slot 5 with a gap fit. The left and right ends of the upper side of the reinforcing plate 4 are fixedly installed with pressure blocks 8 by bolts. The end of the pressure block 8 near the lower flange 7 of the frame is formed with a T-shaped flange 9. One side of the T-shaped flange 9 is stuck below the limiting edge 6. The bottom side of the T-shaped flange 9 presses against the lower flange 7 of the frame of the photovoltaic panel 2. The principle is as follows: the pressure block 8 and the reinforcing plate 4 are respectively bolted to the outward flange 3 of the U-shaped water tank 1. After installation, the inner side of the pressure block 8 will press down on the lower flange 7 of the frame of the photovoltaic panel 2 through the T-shaped flange 9 to achieve stable assembly. At the same time, the T-shaped flange 9 will be locked in the installation slot 5 of the reinforcing plate 4 through the limiting edge 6. When subjected to upward wind force, the limiting edge 6 can lock the T-shaped flange 9, thereby effectively preventing the pressure plate from deforming and ensuring the firmness of fixing the photovoltaic panel 2. During the installation process, the pressure block 8 is inserted into the installation slot 5 from the side of the reinforcing plate 4, so that the T-shaped flange 9 is locked under the limiting edge 6, which facilitates actual assembly.

[0030] Furthermore: an installation gap 10 is left between the limiting edge 6 and the T-shaped flange 9; this facilitates the side insertion assembly of the pressure block 8, and the distance between the lower surface of the T-shaped flange 9 and the mounting groove 5 is designed to be slightly smaller than the thickness of the lower flange 7 of the photovoltaic panel 2 frame, ensuring that the T-shaped flange 9 of the pressure block 8 can press against the lower flange 7 of the photovoltaic panel 2 frame when the bolt is tightened.

[0031] Furthermore, the two photovoltaic panels 2 in the installation slot 5 are arranged symmetrically to each other; two photovoltaic panels 2 can be installed in the installation slot 5 at the same time, so that the gap between the two adjacent photovoltaic panels 2 is exactly above the U-shaped water tank 1, achieving stable drainage and higher installation stability.

[0032] Furthermore, the left and right sides of the reinforcing plate 4 are bent downward to form positioning flanges 11, and the outward flanges 3 on the left and right sides of the U-shaped water tank 1 are correspondingly set on the inner side of the positioning flanges 11. The positioning flanges 11 can be set so that the reinforcing plate 4 can be just snapped into the outward flanges 3 on the left and right sides of the U-shaped water tank 1, ensuring the rapid assembly of the reinforcing plate 4.

[0033] This utility model achieves the dual force protection function of photovoltaic panel 2 through the T-shaped flange 9 of pressure block 8 and the positioning folded edge 11 of reinforcing plate 4, ensuring the firm assembly of photovoltaic panel 2, and can precisely constrain the rotational displacement of reinforcing plate 4 and pressure block 8, greatly improving the fixing strength of pressure block 8 to photovoltaic panel 2.

[0034] Furthermore, the upper side of the reinforcing plate 4 has two waterproof protrusions 12, and the mounting groove 5 is set between the two waterproof protrusions 12; this can effectively block water flow, avoid large water accumulation, and ensure the service life of the entire structural system.

[0035] Furthermore: a transition bevel 13 is formed between the waterproof protrusion 12 and the reinforcing plate 4, and the angle between the upper surface of the reinforcing plate 4 and the transition bevel 13 is 0-90°. An elastic bevel 14 is formed on the pressure block 8, and the elastic bevel 14 is pressed on the transition bevel 13 one by one. The pressure block 8 can press the T-shaped flange 9 onto the lower flange 7 of the frame of the photovoltaic panel 2 through the elastic bevel 14 to achieve stable assembly. Under the action of upward wind force, the elastic bevel 14 will bend upward, and at the same time, the limiting edge 6 can hold the T-shaped flange 9, thereby limiting the upward bending distance of the pressure block 8 and ensuring the firm assembly of the photovoltaic panel 2.

[0036] Furthermore, the bottom side of the reinforcing plate 4 has two inclined grooves 15, which are respectively set below the transition inclined edge 13. The included angle between the bottom surface of the reinforcing plate 4 and the inclined grooves 15 is 0-90°, and the inclination angle of the inclined grooves 15 is the same as that of the transition inclined edge 13; this can prevent the spread of water.

[0037] Furthermore, the bottom side of the reinforcing plate 4 is formed with two reinforcing edges 16, which are respectively set on the left and right sides of the bottom side of the mounting groove 5. The reinforcing edges 16 are set to protrude downwards. The setting of the reinforcing edges 16 can enhance the structural strength of the mounting groove 5. At the same time, the downward protrusion of the reinforcing edges 16 can form a drip structure, which can effectively block the water flow and drip down, facilitating the drainage of the photovoltaic shed system.

[0038] Furthermore, elongated holes 17 are formed on both ends of the reinforcing plate 4 and on the two pressure blocks 8. The pressure blocks 8 are locked onto the reinforcing plate 4 by means of bolts passing through the two elongated holes 17. The structure of the elongated holes 17 can be used to realize the quick installation of bolts, which is convenient for specific operations during on-site assembly.

[0039] Furthermore, bolt holes 18 are formed at the outward flange 3 of the U-shaped water tank 1, and bolts are installed and locked by passing through bolt holes 18 and two elongated holes 17; this ensures the accurate installation and positioning of the reinforcing plate 4.

[0040] In this utility model, one side of the pressure block 8 is bolted to the outward flange 3 of the U-shaped water tank 1, and the other side of the pressure block 8 is provided with a T-shaped flange 9. When fixing the photovoltaic panel 2, the T-shaped flange 9 of the pressure block 8 is inserted into the mounting slot 5 from the side of the reinforcing plate 4; and the T-shaped flange 9 is stuck below the limiting edge 6, and an installation gap 10 is provided between the T-shaped flange 9 and the limiting edge 6 to facilitate the side insertion assembly of the pressure block 8. The distance between the T-shaped flange 9 and the mounting slot 5 is designed to be slightly smaller than the thickness of the lower flange 7 of the photovoltaic panel 2 frame. When the bolt is tightened, the T-shaped flange 9 of the pressure block 8 can press tightly against the lower flange 7 of the frame to complete the assembly.

[0041] like Figure 12-13 As shown, in this utility model, let: A = wind force - gravity; B = bending force formed by bolt fulcrum anchoring; C = lever arm.

[0042] Under normal climatic conditions, i.e., when A×C < B, the fixing ability of the clamping block 8 to the photovoltaic panel 2 is mainly determined by B; Under the action of extremely strong winds, i.e. when A×C ≥ B, the lower flange 7 of the frame of the photovoltaic panel 2 drives the T-shaped flange 9 of the pressure block 8 to rotate upward elastically until the T-shaped flange 9 comes into contact with the limiting edge 6 in the mounting slot 5. At this time, the second wind resistance mechanism will be triggered. Since the limiting edge 6 will provide a downward force on the T-shaped flange 9, it will form a reverse wind resistance moment around the bolt fulcrum, which greatly improves the wind resistance.

[0043] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A photovoltaic panel under-mount block installation structure with dual wind resistance mechanisms, including a U-shaped water trough and a photovoltaic panel; The upper side of the U-shaped water tank is bent outward to form outward flanges. A reinforcing plate is fixed between the two outward flanges by bolts. An installation groove is formed in the middle of the upper side of the reinforcing plate. Limiting edges are formed at the upper edges of the left and right sides of the installation groove. The bottom edge of the photovoltaic panel is fixedly installed with a lower flange of the frame. The lower flanges of the two photovoltaic panels are simultaneously installed in the mounting groove with a gap fit. The left and right ends of the upper side of the reinforcing plate are fixed with pressure blocks by bolts. The end of the pressure block near the lower flange of the frame is formed with a T-shaped flange. One side of the T-shaped flange is stuck below the limiting edge, and the bottom side of the T-shaped flange presses against the lower flange of the photovoltaic panel frame.

2. The photovoltaic panel underblock installation structure with dual wind resistance mechanism according to claim 1, characterized in that: An installation gap is left between the limiting edge and the T-shaped flange.

3. The photovoltaic panel underblock installation structure with dual wind resistance mechanism according to claim 1, characterized in that: The two photovoltaic panels in the installation slot are arranged symmetrically to each other.

4. The photovoltaic panel underblock installation structure with dual wind resistance mechanism according to claim 1, characterized in that: The left and right sides of the reinforcing plate are bent downwards to form positioning folds, and the outward flanges on the left and right sides of the U-shaped water tank are respectively set on the inner side of the positioning folds.

5. The photovoltaic panel underblock mounting structure with dual wind resistance mechanism according to any one of claims 1 or 2, characterized in that: The upper side of the reinforcing plate has two waterproof protrusions, and the mounting groove is located between the two waterproof protrusions.

6. The photovoltaic panel underblock installation structure with dual wind resistance mechanism according to claim 5, characterized in that: A transition bevel is formed between the waterproof protrusion and the reinforcing plate. The angle between the upper surface of the reinforcing plate and the transition bevel is 0-90°. An elastic bevel is formed on the pressure block, and the elastic bevel is pressed onto the transition bevel in a one-to-one correspondence.

7. The photovoltaic panel underblock installation structure with dual wind resistance mechanism according to claim 6, characterized in that: The bottom side of the reinforcing plate has two inclined grooves, which are set below the transition inclined edge in a one-to-one correspondence. The included angle between the bottom surface of the reinforcing plate and the inclined groove is 0-90°, and the inclination angle of the inclined groove is the same as that of the transition inclined edge.

8. The photovoltaic panel underblock installation structure with dual wind resistance mechanism according to claim 1, characterized in that: The bottom side of the reinforcing plate has two reinforcing edges, which are respectively set on the left and right sides of the bottom side of the mounting groove, and the reinforcing edges are convex downward.

9. The photovoltaic panel underblock installation structure with dual wind resistance mechanism according to claim 1, characterized in that: The left and right ends of the reinforcing plate and the two pressure blocks are all formed with elongated holes. The pressure blocks are locked to the reinforcing plate by bolts passing through the two elongated holes.

10. The photovoltaic panel underblock mounting structure with dual wind resistance mechanism according to claim 9, characterized in that: Bolt holes are formed at the outward flange of the U-shaped water tank, and bolts are installed and locked by passing through the bolt holes and two elongated holes.

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