A photovoltaic solar panel protection device

Abstract

The application relates to the technical field of protection devices of power generation panels, and discloses a protection device for a photovoltaic solar power generation panel, which comprises a mounting frame and a photovoltaic panel mounted on the mounting frame, the bottom of the mounting frame is fixedly connected with a fixing frame, one side of the fixing frame is fixedly connected with a fixing block, a winding groove is formed in the top surface of the fixing block, a winding roller is rotatably connected in the winding groove, a protective belt is wound on the outer wall of the winding roller, one end of the protective belt is fixed on the winding roller, the other end of the protective belt is fixedly connected with a limiting plate, a connecting belt is fixedly connected to the surface of the limiting plate, the other end of the connecting belt is fixedly connected with a positioning plate, and a connecting frame is fixedly connected to the top of the mounting frame. The protection device for the photovoltaic solar power generation panel can absorb and disperse the impact energy of hard objects carried by hail or strong wind when the hard objects impact, so that the impact force is not directly transmitted to the glass on the surface of the fragile photovoltaic panel below, and the safety and durability of the photovoltaic system under adverse weather conditions are improved.

Description

Technical Field

[0001] This invention relates to the field of protective devices for photovoltaic panels, specifically a protective device for photovoltaic solar panels. Background Technology

[0002] Photovoltaic technology refers to the technology that directly converts solar energy into electrical energy. Its core components are photovoltaic materials (such as monocrystalline silicon and polycrystalline silicon), which achieve energy conversion through the photovoltaic properties of semiconductor materials. With the acceleration of urbanization, balcony photovoltaic systems have become an important application scenario for distributed energy due to their advantages in efficient space utilization and building-integrated design.

[0003] For example, patent CN221728227U discloses a solar panel bracket and solar panel assembly for balconies. The bracket includes an adjusting rod, a support base, a fixing rod, and a connector. The adjusting rod comprises a telescopic rod, an adjusting cylinder, and a fixing component. The telescopic rod is slidably connected inside the adjusting cylinder and fixed by the fixing component. The fixing rod and the adjusting cylinder are rotatably connected to both sides of the support base and fixed by screws. The end of the fixing rod away from the support base is rotatably connected to the telescopic rod and fixed by screws. The connector is connected to one end of the support base. Based on this, solar panels can be installed more effectively on balconies. Furthermore, a solar panel assembly is also provided.

[0004] However, the aforementioned balcony solar panels still have certain drawbacks in use:

[0005] During use, the aforementioned balcony solar panels lack an effective protection mechanism when encountering hail or impacts from hard objects carried by strong winds. This can easily lead to cracks in the surface glass of the solar panels or microcracks in the internal cells, which will not only directly reduce the photoelectric conversion efficiency but may also cause the photovoltaic power generation module to fail completely. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the present invention provides a protective device for photovoltaic solar panels to achieve protection of photovoltaic solar panels.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a protective device for a photovoltaic solar power panel, comprising a mounting frame and a photovoltaic panel mounted on the mounting frame. A fixing frame is fixedly connected to the bottom of the mounting frame, and a fixing block is fixedly connected to one side of the fixing frame. A winding groove is formed on the top surface of the fixing block, and a winding roller is rotatably connected in the winding groove. A protective strip is wound around the outer wall of the winding roller. One end of the protective strip is fixed to the winding roller, and a limiting plate is fixedly connected to the other end of the protective strip. A connecting strip is fixedly connected to the surface of the limiting plate, and a positioning plate is fixedly connected to the other end of the connecting strip. A connecting frame is fixedly connected to the top of the mounting frame, and a snap-fit ​​groove matching the shape and position of the limiting plate is formed on the surface of the connecting frame. The length of the connecting strip is greater than the length of the protective strip, and the cross-section of the limiting plate is T-shaped.

[0008] Furthermore, an airbag membrane is fixedly connected to the side of the protective belt near the photovoltaic panel, and an air guide tube is fixedly connected inside the connecting belt. One end of the air guide tube penetrates the limiting plate and is connected to the airbag membrane, while the other end of the air guide tube penetrates the positioning plate and is fixedly connected to an air guide interface. A sealing cap is threaded onto the outer wall of the air guide interface.

[0009] Furthermore, a fixing cover is fixedly connected to one end of the fixing block, and one end of the take-up roller passes through the fixing cover. A coil spring is fixedly connected inside the fixing cover, and the inner side of the coil spring is fixedly connected to the outer wall of the take-up roller.

[0010] Furthermore, connecting blocks are fixedly connected to both ends of the bottom surface of the limiting plate, rotating shafts are fixedly connected to the ends of the two connecting blocks, rotating rods are rotatably connected to the outer walls of the two rotating shafts, mounting plates are fixedly connected to the bottom ends of the two rotating rods, and cleaning brushes are fixedly connected to the side of the mounting plate near the photovoltaic panel.

[0011] Furthermore, the mounting plate has rotating grooves at both ends of its bottom surface, and magnetic wheels are rotatably connected in both rotating grooves, with the magnetic wheels adsorbed on both sides of the photovoltaic panel.

[0012] Furthermore, the surface of the fixing block is provided with a through drainage groove, and the bottom surface of the winding groove is provided with multiple drainage holes.

[0013] Furthermore, two symmetrically arranged grips are fixedly connected to the surface of the positioning plate.

[0014] Furthermore, the outer wall of the grip is fitted with an anti-slip sleeve.

[0015] Furthermore, multiple reinforcing strips are fixedly connected within the connecting strip.

[0016] Furthermore, the opening of the take-up groove is rounded, and the upper opening of the snap-fit ​​groove is chamfered.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This type of protective device for photovoltaic solar panels utilizes a protective strip to absorb and disperse the impact energy of hard objects carried by hail or strong winds, thereby preventing the impact force from being directly transmitted to the fragile surface glass of the photovoltaic panel below. The air gap reserved between the protective strip and the surface of the photovoltaic panel forms a buffer layer, further weakening the propagation of the shock wave. This prevents the photovoltaic panel from being impacted due to deformation of the protective strip caused by the impact, reduces the risk of glass breakage or microcracks in the solar cells caused by stress concentration, and improves the safety and durability of the photovoltaic system under severe weather conditions. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0020] Figure 2 This is a schematic diagram of the overall three-dimensional disassembled structure of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the mounting frame, fixing frame, and connecting frame of the present invention;

[0022] Figure 4 This is a three-dimensional cross-sectional structural diagram of the protective belt, connecting belt, and airbag membrane of the present invention;

[0023] Figure 5 This is a three-dimensional sectional view of the protective strip, fixing block, and fixing frame of the present invention.

[0024] Figure 6 This is a three-dimensional cross-sectional structural diagram of the fixing block of the present invention;

[0025] Figure 7 This is a three-dimensional cross-sectional structural diagram of the connecting frame of the present invention;

[0026] Figure 8 This is a three-dimensional cross-sectional structural diagram of the limiting plate, connecting belt, and cleaning brush of the present invention;

[0027] Figure 9 This is a three-dimensional structural diagram of the limiting plate, connecting belt, and cleaning brush of the present invention;

[0028] Figure 10 This is a three-dimensional disassembled structural diagram of the mounting plate, magnetic wheel, and cleaning brush of the present invention;

[0029] Figure 11 This is a three-dimensional disassembled structural diagram of the connecting strap, positioning plate, and grip of the present invention;

[0030] Figure 12 for Figure 4 A magnified three-dimensional structural diagram at point A above.

[0031] In the diagram: 1. Mounting frame; 2. Photovoltaic panel; 3. Fixing frame; 4. Fixing block; 5. Rewinding groove; 6. Rewinding roller; 7. Protective belt; 8. Limiting plate; 9. Connecting belt; 10. Positioning plate; 11. Connecting frame; 12. Snap-fit ​​groove; 13. Airbag membrane; 14. Air duct; 15. Air duct interface; 16. Sealing cover; 17. Fixing cover; 18. Coil spring; 19. Connecting block; 20. Rotating rod; 21. Mounting plate; 22. Cleaning brush; 23. Rotating groove; 24. Magnetic wheel; 25. Drainage groove; 26. Drainage hole; 27. Handle; 28. Anti-slip sleeve; 29. ​​Rotating shaft; 30. Reinforcing belt. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Please see Figures 1 to 12 A protective device for a photovoltaic solar panel includes a mounting frame 1 and a photovoltaic panel 2 mounted on the mounting frame 1. A fixing frame 3 is fixedly connected to the bottom of the mounting frame 1, and a fixing block 4 is fixedly connected to one side of the fixing frame 3. A winding groove 5 is opened on the top surface of the fixing block 4, and a winding roller 6 is rotatably connected in the winding groove 5. A protective strip 7 is wound around the outer wall of the winding roller 6. One end of the protective strip 7 is fixed to the winding roller 6, and a limiting plate 8 is fixedly connected to the other end of the protective strip 7. A connecting strip 9 is fixedly connected to the surface of the limiting plate 8, and a positioning plate 10 is fixedly connected to the other end of the connecting strip 9. A connecting frame 11 is fixedly connected to the top of the mounting frame 1. A snap-fit ​​groove 12 matching the shape and position of the limiting plate 8 is opened on the surface of the connecting frame 11. The length of the connecting strip 9 is greater than the length of the protective strip 7, and the cross-section of the limiting plate 8 is T-shaped.

[0034] In the protective device for photovoltaic solar panels of this invention, when encountering hail or strong winds, the user pulls the positioning plate 10, which in turn pulls the limiting plate 8 via the connecting strap 9, thereby pulling the protective belt 7. The protective belt 7 is then unwound from the winding groove 5. When the limiting plate 8 moves to be flush with the connecting frame 11, the user rotates the limiting plate 8 by hand, allowing it to pass through the locking groove 12 on the connecting frame 11. The limiting plate 8 is then reset, locking itself into the locking groove 12. This completes the unwinding of the protective belt 7, ensuring it completely covers the surface of the photovoltaic panel 2 and is properly positioned between the panel and the photovoltaic panel 2. There is a certain gap. When a hard object carried by hail or strong wind hits, the impact force first acts on the outer protective strip 7. The protective strip 7 absorbs and disperses the impact energy, thereby preventing the impact force from being directly transmitted to the fragile surface glass of the photovoltaic panel 2 below. The air gap reserved between the protective strip 7 and the surface of the photovoltaic panel 2 forms a certain buffer layer, which further weakens the propagation of the shock wave and prevents the photovoltaic panel 2 from being impacted due to the deformation of the protective strip 7. This reduces the risk of glass breakage or microcracks in the solar cells caused by stress concentration in the photovoltaic panel 2, and improves the safety and durability of the photovoltaic system under severe weather conditions.

[0035] As a preferred embodiment of the present invention, an airbag membrane 13 is fixedly connected to the side of the protective belt 7 near the photovoltaic panel 2, and an air guide tube 14 is fixedly connected inside the connecting belt 9. One end of the air guide tube 14 penetrates the limiting plate 8 and communicates with the airbag membrane 13, and the other end of the air guide tube 14 penetrates the positioning plate 10 and is fixedly connected to an air guide interface 15. A sealing cap 16 is threadedly connected to the outer wall of the air guide interface 15.

[0036] Specifically, after unfolding the protective belt 7, the user can open the sealing cover 16 and use tools such as an air pump to introduce air between the airbag membrane 13 and the protective belt 7, thus inflating the airbag membrane 13. At this time, the airbag membrane 13 and the protective belt 7 will form an airbag structure. This airbag structure is located between the protective belt 7 and the surface of the photovoltaic panel 2, and plays the role of an efficient buffer layer. The inflated airbag membrane 13 is evenly inflated, so that the protective belt 7 and the photovoltaic panel 2 maintain a more stable and elastic gap space, significantly enhancing the overall impact resistance.

[0037] As a preferred embodiment of the present invention, a fixing cover 17 is fixedly connected to one end of the fixing block 4, and one end of the take-up roller 6 is inserted into the fixing cover 17. A coil spring 18 is fixedly connected inside the fixing cover 17, and the inner side of the coil spring 18 is fixedly connected to the outer wall of the take-up roller 6.

[0038] Specifically, when the severe weather ends, the user first opens the sealing cover 16, then rotates the limiting plate 8 to disengage it from the snap-fit ​​groove 12 on the connecting frame 11. The elastic potential energy stored in the coil spring 18 is gradually released, driving the take-up roller 6 to rotate in the opposite direction, thereby automatically and smoothly and orderly retracting the protective belt 7 and the airbag membrane 13 into the take-up groove 5, realizing the automatic reset of the device.

[0039] As a preferred embodiment of the present invention, both ends of the bottom surface of the limiting plate 8 are fixedly connected to connecting blocks 19, the ends of the two connecting blocks 19 are fixedly connected to rotating shafts 29, the outer walls of the two rotating shafts 29 are rotatably connected to rotating rods 20, the bottom ends of the two rotating rods 20 are fixedly connected to mounting plates 21, and the side of the mounting plate 21 near the photovoltaic panel 2 is fixedly connected to a cleaning brush 22.

[0040] Specifically, as the limiting plate 8 moves, the cleaning brush 22 moves accordingly, thereby cleaning the surface of the photovoltaic panel 2. Users only need to pull the positioning plate 10 to complete the cleaning operation, reducing the cleaning difficulty and cleaning risk of the photovoltaic panel 2.

[0041] As a preferred embodiment of the present invention, the mounting plate 21 has rotating grooves 23 at both ends of its bottom surface, and magnetic wheels 24 are rotatably connected in both rotating grooves 23. The magnetic wheels 24 are adsorbed on both sides of the photovoltaic panel 2.

[0042] Specifically, the magnetic wheel 24 can be attracted to the metal frame on the outside of the photovoltaic panel 2, thereby ensuring that the cleaning brush 22 is stably attached to the surface of the photovoltaic panel 2, effectively preventing the cleaning brush 22 from jumping or partially detaching from the surface, and ensuring the continuity and uniformity of the cleaning process.

[0043] As a preferred embodiment of the present invention, the surface of the fixing block 4 is provided with a through drainage groove 25, and the bottom surface of the winding groove 5 is provided with a plurality of drainage holes 26.

[0044] Specifically, the drainage channel 25 and the drainage hole 26 can drain rainwater and other water, preventing water accumulation that could lead to corrosion.

[0045] As a preferred embodiment of the present invention, the positioning plate 10 has two symmetrically arranged grips 27 fixedly connected to its surface.

[0046] Specifically, when the protective device needs to be deployed, the user can hold the two handles 27 with both hands, apply a uniform pulling force, and smoothly pull the positioning plate 10, thereby driving the connecting belt 9 to move, so that the protective belt 7 can be smoothly deployed from the winding groove 5.

[0047] It is worth noting that users can also choose to install an electric winding machine indoors to pull the connecting belt 9, thereby achieving automatic unfolding of the protective structure.

[0048] As a preferred embodiment of the present invention, the outer wall of the grip 27 is fitted with an anti-slip sleeve 28.

[0049] Specifically, the anti-slip sleeve 28 fitted on the outer wall of the grip 27 is made of a material with a high coefficient of friction and good elasticity, such as silicone or rubber, which can significantly enhance the friction between the user's hand and the grip 27. Under adverse conditions such as rain, snow, humid air, or sweaty hands of the operator, the anti-slip sleeve 28 can effectively prevent slipping and ensure the stability and safety of the pulling operation.

[0050] As a preferred embodiment of the present invention, a plurality of reinforcing strips 30 are fixedly connected within the connecting strip 9.

[0051] Specifically, during long-term outdoor use, the connecting strip 9 is prone to aging due to sun exposure, which leads to a decrease in its load-bearing capacity and a risk of breakage. The embedded reinforcing strip 30 effectively enhances the tensile strength and fatigue resistance of the connecting strip 9, making it less prone to deformation or loosening during repeated stretching and winding operations, thus extending the service life of the connecting strip 9. Even when the outer material shows slight aging in extreme environments, the internal reinforcing strip 30 can still maintain structural integrity, ensuring that critical connection functions are not interrupted.

[0052] As a preferred embodiment of the present invention, the opening of the take-up groove 5 is rounded, and the upper opening of the snap-fit ​​groove 12 is chamfered.

[0053] Specifically, the rounded corners of the take-up groove 5 can prevent scratches on the protective strip 7 and the airbag membrane 13, while the chamfered corners of the snap-fit ​​groove 12 can facilitate the snap-fit ​​of the limiting plate 8 and the positioning plate 10 with the snap-fit ​​groove 12.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective device for photovoltaic solar panels, characterized in that, The system includes a mounting frame (1) and a photovoltaic panel (2) mounted on the mounting frame (1). A fixing frame (3) is fixedly connected to the bottom of the mounting frame (1). A fixing block (4) is fixedly connected to one side of the fixing frame (3). A winding groove (5) is provided on the top surface of the fixing block (4). A winding roller (6) is rotatably connected in the winding groove (5). A protective strip (7) is wrapped around the outer wall of the winding roller (6). One end of the protective strip (7) is fixed to the winding roller (6). The other end is fixedly connected to a limiting plate (8), the surface of the limiting plate (8) is fixedly connected to a connecting strip (9), the other end of the connecting strip (9) is fixedly connected to a positioning plate (10), the top of the mounting bracket (1) is fixedly connected to a connecting frame (11), the surface of the connecting frame (11) is provided with a snap-fit ​​groove (12) that matches the shape and position of the limiting plate (8), the length of the connecting strip (9) is greater than the length of the protective strip (7), and the cross-section of the limiting plate (8) is T-shaped. When encountering hail or strong winds, the user pulls the positioning plate (10), and then pulls the limiting plate (8) through the connecting strap (9), thereby pulling the protective belt (7) to unfold the protective belt (7) from the take-up slot (5). When the limiting plate (8) moves to fit against the connecting frame (11), the user rotates the limiting plate (8) by hand so that the limiting plate (8) can pass through the snap-fit ​​slot (12) on the connecting frame (11). Then, the limiting plate (8) is reset so that the limiting plate (8) snaps into the snap-fit ​​slot (12). At this time, the unfolding of the protective belt (7) is completed, so that the protective belt (7) completely covers the photovoltaic panel (2). The protective strip (7) is placed on the surface of the photovoltaic panel (2) and there is a certain gap between it and the photovoltaic panel (2). When a hard object carried by hail or strong wind hits the photovoltaic panel (2), the impact force first acts on the outer protective strip (7). The protective strip (7) absorbs and disperses the impact energy, thereby preventing the impact force from being directly transmitted to the glass surface of the photovoltaic panel (2) below. The air gap reserved between the protective strip (7) and the surface of the photovoltaic panel (2) forms a certain buffer layer, which further weakens the propagation of the shock wave, avoids the photovoltaic panel (2) from being impacted due to the deformation of the protective strip (7) caused by the impact, and reduces the risk of glass breakage or cell microcracks caused by stress concentration in the photovoltaic panel (2). An airbag membrane (13) is fixedly connected to the side of the protective strip (7) near the photovoltaic panel (2). An air guide tube (14) is fixedly connected inside the connecting strip (9). One end of the air guide tube (14) penetrates the limiting plate (8) and is connected to the airbag membrane (13). The other end of the air guide tube (14) penetrates the positioning plate (10) and is fixedly connected to an air guide interface (15). A sealing cap (16) is threaded onto the outer wall of the air guide interface (15). After unfolding the protective belt (7), the user can open the sealing cover (16) and use an air pump to introduce air between the airbag membrane (13) and the protective belt (7) to inflate the airbag membrane (13). At this time, the airbag membrane (13) and the protective belt (7) will form an airbag structure. This airbag structure is located between the protective belt (7) and the surface of the photovoltaic panel (2) and acts as a buffer layer. The inflated airbag membrane (13) is evenly inflated, so that the gap space is maintained between the protective belt (7) and the photovoltaic panel (2). One end of the fixed block (4) is fixedly connected to a fixed cover (17), one end of the take-up roller (6) is inserted into the fixed cover (17), a coil spring (18) is fixedly connected inside the fixed cover (17), and the inner side of the coil spring (18) is fixedly connected to the outer wall of the take-up roller (6). When the severe weather ends, the user first opens the sealing cover (16), and then rotates the limiting plate (8) to disengage it from the snap-fit ​​groove (12) on the connecting frame (11). The elastic potential energy stored in the coil spring (18) is gradually released, driving the take-up roller (6) to rotate in the opposite direction, thereby automatically and smoothly and orderly retracting the protective belt (7) and the airbag membrane (13) into the take-up groove (5), realizing the automatic reset of the device.

2. The protective device for a photovoltaic solar panel according to claim 1, characterized in that, Both ends of the bottom surface of the limiting plate (8) are fixedly connected to connecting blocks (19), and the ends of the two connecting blocks (19) are fixedly connected to rotating shafts (29). The outer walls of the two rotating shafts (29) are rotatably connected to rotating rods (20), and the bottom ends of the two rotating rods (20) are fixedly connected to mounting plates (21). A cleaning brush (22) is fixedly connected to the side of the mounting plate (21) near the photovoltaic panel (2).

3. The protective device for a photovoltaic solar panel according to claim 2, characterized in that, The mounting plate (21) has rotating grooves (23) at both ends of its bottom surface. Magnetic wheels (24) are rotatably connected in both rotating grooves (23). The magnetic wheels (24) are adsorbed on both sides of the photovoltaic panel (2).

4. The protective device for a photovoltaic solar panel according to claim 3, characterized in that, The surface of the fixing block (4) is provided with a through drainage groove (25), and the bottom surface of the winding groove (5) is provided with multiple drainage holes (26).

5. A protective device for a photovoltaic solar panel according to claim 4, characterized in that, The positioning plate (10) has two symmetrically arranged handles (27) fixedly connected to its surface.

6. The protective device for a photovoltaic solar panel according to claim 5, characterized in that, The outer wall of the grip (27) is fitted with an anti-slip sleeve (28).

7. A protective device for a photovoltaic solar panel according to claim 6, characterized in that, Multiple reinforcing strips (30) are fixedly connected inside the connecting strip (9).

8. A protective device for a photovoltaic solar panel according to claim 7, characterized in that, The opening of the winding groove (5) is rounded, and the upper opening of the snap-fit ​​groove (12) is chamfered.

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