Bird deterrent device for photovoltaic panels

Abstract

This utility model discloses a bird-repelling device for photovoltaic panels, including a lead screw and a U-shaped frame. The lead screw horizontally passes through two vertical plates of the U-shaped frame. A reversible motor is installed at one end of the lead screw, and the other end is rotatably connected to the vertical plate of the U-shaped frame via a bearing. A transmission block is sleeved on the lead screw. A sliding groove is formed along the length of the bottom plate of the U-shaped frame, and the bottom of the transmission block is located in the sliding groove. Horizontally placed L-shaped connecting frames are fixed on both sides of the transmission block. A support rod is vertically fixed at the end of the L-shaped connecting frame away from the transmission block, and a bird-repelling component is connected to the top of the support rod. The bird-repelling component is physically driven to reciprocate by the reversible motor. The bird-repelling component can be a flag or a leash with a reflector, which uses dynamic visual stimulation to repel birds without using chemical agents, thus avoiding pollution of the photovoltaic panels and the surrounding environment.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, specifically to a bird deterrent device for photovoltaic panels. Background Technology

[0002] As the global energy structure shifts towards clean energy, the photovoltaic (PV) industry, as a core area for utilizing solar energy, has become an important component of global energy strategy. Based on the photovoltaic effect, this industry has built a complete industrial chain covering PV material research and development, cell production, module packaging, system integration, and operation and maintenance services. By directly converting solar energy into electricity through photovoltaic panels, it provides crucial technological support for solving energy shortages and environmental pollution problems. In recent years, with the improvement of PV cell conversion efficiency and the reduction of costs, PV power plants have been deployed on a large scale globally, with rapid growth in all types, including centralized ground-mounted power plants, distributed rooftop power plants, and building-integrated photovoltaic (BIPV) projects.

[0003] As the core power generation component of a photovoltaic system, the efficiency of photovoltaic panels directly determines the power generation benefits of the entire power station. Typically, photovoltaic panels are installed on supports in open areas such as deserts, rooftops, and water surfaces to maximize the absorption of sunlight. However, these open environments are often also high-frequency activity areas for birds; sparrows, pigeons, magpies, and other birds frequently use the surface of photovoltaic panels as resting, foraging, or nesting places.

[0004] The negative impacts of bird activity on photovoltaic (PV) panels are mainly manifested in the following aspects: First, bird droppings adhering to the surface of PV panels create irregular shading, hindering direct sunlight from reaching the solar cells and causing localized shading effects. Studies have shown that even small areas of droppings can reduce the power generation efficiency of PV modules by 10%-30%, and long-term accumulation can even trigger hot spot effects, causing permanent damage to the modules. Second, some birds nest in the gaps or at the bottom of PV panel supports, and their nesting materials may cause short circuits. Furthermore, birds pecking at cable insulation also increases the risk of equipment failure. In addition, trampling by large birds can cause the glass cover of the PV panels to shatter, directly rendering the equipment unusable.

[0005] To address the aforementioned issues, various bird-repelling methods have emerged in existing technologies. Physical bird repellents commonly include scarecrows, reflective strips, or ultrasonic devices. However, scarecrows are easily adapted to by birds, reflective strips are significantly less effective on cloudy days, and ultrasonic devices suffer from limited coverage and susceptibility to environmental noise interference. Chemical bird repellents, while effective in the short term, may pollute the environment and require frequent reapplication, resulting in high maintenance costs. Biological control methods, such as introducing natural predators of birds of prey, are limited by geographical constraints and ecological balance, making their widespread application in large-scale photovoltaic power plants difficult.

[0006] In summary, existing bird-repelling technologies have significant shortcomings in terms of sustainability, environmental friendliness, and economic efficiency, failing to meet the demands of the large-scale development of the photovoltaic industry for efficient bird control. Therefore, developing a photovoltaic panel bird-repelling device that can adapt to complex outdoor environments, operate stably over the long term, and is environmentally friendly has become a key technological requirement for improving the power generation efficiency of photovoltaic power plants and reducing operation and maintenance costs. Utility Model Content

[0007] The purpose of this invention is to provide a bird deterrent device for photovoltaic panels, which solves the problems in the background art.

[0008] The technical solution adopted by this utility model is a bird deterrent device for photovoltaic panels, including a lead screw and a U-shaped frame. The lead screw horizontally passes through two vertical plates of the U-shaped frame. One end of the lead screw is equipped with a forward and reverse motor, and the other end is rotatably connected to the vertical plate of the U-shaped frame through a bearing.

[0009] A transmission block is fitted onto the lead screw, and a sliding groove is provided on the bottom plate of the U-shaped frame along its length, with the bottom of the transmission block located inside the sliding groove;

[0010] The transmission block is fixed with horizontally placed L-shaped connecting frames on both sides. The ends of the L-shaped connecting frames away from the transmission block are vertically fixed with support rods, and the top of the support rods is connected to the driving components.

[0011] The features of this utility model also include:

[0012] It also includes an air collection box fixed to the bottom of the U-shaped frame. A push rod is horizontally installed inside the air collection box. One end of the push rod passes through the side wall of the air collection box into its interior, and the other end is fixed with a linkage plate. The top of the linkage plate is fixed to the bottom of the transmission block.

[0013] A piston plate is fixed to the end of the push rod located inside the gas collection box, and the outer wall of the piston plate is in sealed contact with the inner wall of the gas collection box.

[0014] An air intake pipe is connected to the side wall of the air collection box away from the linkage plate, and an exhaust pipe is connected to the top wall. A whistle is connected to the end of the exhaust pipe away from the air collection box.

[0015] The intake pipe and exhaust pipe are connected to the air collection box via one-way valves.

[0016] The driving-off component is a flag.

[0017] The driving mechanism includes several traction ropes and a reflector. One end of the traction rope is fixed to the end of the support rod, and the other end is fixedly connected to the reflector.

[0018] The forward and reverse reversing motors can be servo motors, stepper motors, single-phase asynchronous motors, three-phase asynchronous motors, brushless DC motors, or brushed DC motors.

[0019] Two parallel guide plates are fixed between the two vertical plates of the U-shaped frame. The two guide plates are located on both sides of the lead screw, and their inner walls are in contact with the transmission block. The bottom of each guide plate is higher than the connection part between the L-shaped connecting frame and the transmission block.

[0020] It also includes a controller and radar sensors fixed around the photovoltaic panel. The radar sensors are connected to the controller via signals, and the controller is connected to the forward and reverse motor signals.

[0021] The beneficial effects of this utility model are:

[0022] This invention uses a reversible motor to drive a bird-repelling component in a reciprocating motion to physically repel birds. The bird-repelling component can be a flag or a leash with a reflector. It uses dynamic visual stimulation to repel birds without using chemical agents, thus avoiding pollution of the photovoltaic panels and the surrounding environment.

[0023] Furthermore, the bottom of the transmission block of this utility model is embedded in the sliding groove of the U-shaped frame base plate, and together with the guide plate, a double limiting structure is formed to ensure that the transmission block moves back and forth under the drive of the screw without deviation or shaking, thereby improving the operational stability.

[0024] Furthermore, considering that birds have the ability to learn and will form habits after understanding the transmission pattern, this invention also includes a sound-generating component. When the transmission block moves, it drives the piston plate in the air collection box to move through the linkage plate. The one-way valve design of the intake and exhaust pipes realizes the directional flow of gas, driving the whistle to generate acoustic stimulation. The synergistic effect of visual and acoustic means effectively prevents birds from adapting to a single bird-repelling method.

[0025] Furthermore, this invention achieves start-stop by setting a combination of radar sensors and controllers, activating the device only when birds approach. Compared to continuous operation mode, this reduces energy consumption and avoids birds' habits of predicting regular movements. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the installation structure of this utility model.

[0027] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0028] Figure 3 This is a cross-sectional view of the gas collection box of this utility model.

[0029] Figure 4 This is a three-dimensional schematic diagram of the support rod of this utility model.

[0030] In the diagram: 1. Bracket, 2. Photovoltaic panel, 3. Support rod, 4. Driving component, 5. Traction rope, 6. Reflector, 7. U-shaped frame, 8. Forward and reverse motor, 9. Lead screw, 10. Transmission block, 11. L-shaped connecting frame, 12. Air collection box, 13. Air inlet pipe, 14. Exhaust pipe, 15. Whistle, 16. Piston plate, 18. Push rod, 19. Linkage plate, 21. Sliding groove, 22. Bearing, 23. Radar sensor, 24. Controller. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] Bird deterrent devices for photovoltaic panels, such as Figure 1 and 2 As shown, the transmission mechanism is installed at the bottom of the photovoltaic panel 2. The transmission mechanism includes a support rod 3, a driving component 4, a U-shaped frame 7, a lead screw 9, a forward and reverse motor 8, a transmission block 10, and an L-shaped connecting frame 11.

[0034] The U-shaped frame 7 consists of two vertical plates and a long strip base plate. The tops of the two vertical plates are fixed to the bottom of the photovoltaic panel 2. A lead screw 9 is horizontally installed between the two vertical plates, passing through the two vertical plates. One end of the lead screw 9 is connected to the output shaft of the forward and reverse motor 8 through a coupling, and the other end is rotatably connected to the vertical plate of the U-shaped frame 7 through a bearing.

[0035] The transmission block 10 has a threaded through hole at its center, through which it is fitted onto the lead screw 9 and threadedly connected to the lead screw 9. The base plate of the U-shaped frame 7 has a sliding groove 21 at its center along its length. The width of the sliding groove 21 corresponds to the width of the transmission block 10. In use, the bottom of the transmission block 10 is placed in the sliding groove 21, and the forward and reverse motor 8 drives the lead screw 9 to rotate, causing the lead screw 9 to drive the transmission block 10 to reciprocate along it.

[0036] On both sides of the transmission block 10, there are horizontally placed L-shaped connecting frames 11. The L-shaped connecting frames 11 are parallel to the photovoltaic panel 2. The end of the L-shaped connecting frame 11 away from the transmission block 10 is vertically fixed with a support rod 3. The support rod 3 is vertically located on the outer edge of the photovoltaic panel 2. The top of the support rod 3 is connected to the driving component 4, which is a flag.

[0037] During operation, the forward and reverse motor 8 drives the lead screw 9 to rotate in both directions, the transmission block 10 moves back and forth along the sliding groove 21, the transmission block 10 drives the L-shaped connecting frame 11 and the support rod 3 to move back and forth, and the support rod 3 drives the flag to move back and forth synchronously, using the swaying of the flag to drive away birds.

[0038] Example 2

[0039] Bird deterrent devices for photovoltaic panels, such as Figure 1 and2 As shown, the transmission mechanism is installed at the bottom of the photovoltaic panel 2. The transmission mechanism includes a support rod 3, a driving component 4, a U-shaped frame 7, a lead screw 9, a forward and reverse motor 8, a transmission block 10, and an L-shaped connecting frame 11.

[0040] The U-shaped frame 7 consists of two vertical plates and a long strip base plate. The tops of the two vertical plates are fixed to the bottom of the photovoltaic panel 2. A lead screw 9 is horizontally installed between the two vertical plates, passing through the two vertical plates. One end of the lead screw 9 is connected to the output shaft of the forward and reverse motor 8 through a coupling, and the other end is rotatably connected to the vertical plate of the U-shaped frame 7 through a bearing.

[0041] The transmission block 10 has a threaded through hole at its center, through which it is fitted onto the lead screw 9 and threadedly connected to the lead screw 9. The base plate of the U-shaped frame 7 has a sliding groove 21 at its center along its length. The width of the sliding groove 21 corresponds to the width of the transmission block 10. In use, the bottom of the transmission block 10 is placed in the sliding groove 21, and the forward and reverse motor 8 drives the lead screw 9 to rotate, causing the lead screw 9 to drive the transmission block 10 to reciprocate along it.

[0042] On both sides of the transmission block 10, horizontally placed L-shaped connecting frames 11 are fixed. The L-shaped connecting frames 11 are parallel to the photovoltaic panel 2. A support rod 3 is vertically fixed to the end of the L-shaped connecting frame 11 away from the transmission block 10. The support rod 3 is vertically located on the outer edge of the photovoltaic panel 2. The top of the support rod 3 is connected to the driving component 4. Figure 4 As shown, the driving component 4 consists of several traction ropes 5 and reflectors 6. One end of the traction rope 5 is fixed to the end of the support rod 3, and the other end is fixed to the reflector 6. The traction ropes 5 are evenly distributed around the end of the support rod 3.

[0043] During operation, the reversible motor 8 drives the lead screw 9 to rotate, and the transmission block 10 drives the L-shaped connecting frame 11 and the support rod 3 to move back and forth. The traction rope 5 swings naturally as it moves with the support rod 3, and the reflector 6 reflects sunlight to form dynamic light spots. The light spots and the swinging of the traction rope 5 work together to enhance the bird-repelling effect.

[0044] Example 3

[0045] Bird deterrent devices for photovoltaic panels, such as Figure 1 and 2 As shown, the transmission mechanism is installed at the bottom of the photovoltaic panel 2. The transmission mechanism includes a support rod 3, a driving component 4, a U-shaped frame 7, a lead screw 9, a forward and reverse motor 8, a transmission block 10, and an L-shaped connecting frame 11.

[0046] The U-shaped frame 7 consists of two vertical plates and a long strip base plate. The tops of the two vertical plates are fixed to the bottom of the photovoltaic panel 2. A lead screw 9 is horizontally installed between the two vertical plates, passing through the two vertical plates. One end of the lead screw 9 is connected to the output shaft of the forward and reverse motor 8 through a coupling, and the other end is rotatably connected to the vertical plate of the U-shaped frame 7 through a bearing.

[0047] A threaded through hole is provided in the center of the transmission block 10, through which it is fitted onto the lead screw 9 and threadedly connected to the lead screw 9. A sliding groove 21 is provided in the center of the base plate of the U-shaped frame 7 along its length, and the width of the sliding groove 21 corresponds to the width of the transmission block 10. A horizontally placed L-shaped connecting frame 11 is fixed on each side of the transmission block 10. The L-shaped connecting frame 11 is parallel to the photovoltaic panel 2. A support rod 3 is vertically fixed at the end of the L-shaped connecting frame 11 away from the transmission block 10. The support rod 3 is vertically located on the outer edge of the photovoltaic panel 2, and the top of the support rod 3 is connected to a driving component 4, which is a flag. Two parallel guide plates are fixed between the two vertical plates of the U-shaped frame 7. The two guide plates are located on both sides of the lead screw 9 and are parallel to the lead screw 9. The inner wall of the guide plate contacts the side wall of the transmission block 10, and the bottom end of each guide plate is higher than the connection point between the transmission block 10 and the L-shaped connecting frame 11. In use, the bottom of the transmission block 10 is placed in the sliding groove 21, and the upper part of the transmission block 10 is limited by the guide plate. The forward and reverse motor 8 drives the lead screw 9 to rotate, and the lead screw 9 drives the transmission block 10 to reciprocate along it. The dual limitation of the transmission block 10 by the sliding groove 21 and the guide plate ensures that the transmission block does not deviate or wobble when it reciprocates under the drive of the lead screw.

[0048] During operation, the reversible motor 8 drives the lead screw 9 to rotate in both directions, and the transmission block 10 moves back and forth along the sliding groove 21. The transmission block 10 drives the L-shaped connecting frame 11 and the support rod 3 to move the flag back and forth synchronously, using the swaying of the flag to drive away birds. The guide plate further constrains the transmission block 10, ensuring the stability of the movement.

[0049] In this embodiment, the forward and reverse rotating motor 8 is selected from servo motors, stepper motors, single-phase asynchronous motors, three-phase asynchronous motors, brushless DC motors, or brushed DC motors. A servo motor is preferred. The servo motor is connected to the power supply via wires and can precisely control the rotation direction and angle. The servo motor can adjust the rotation speed and frequency, causing variations in the flag's movement rhythm, preventing birds from adapting to a fixed movement pattern, and improving the sustainability of bird deterrence.

[0050] Example 4

[0051] Bird deterrent devices for photovoltaic panels, such as Figure 1 and 2 As shown, it includes a transmission mechanism and a sound-generating mechanism installed at the bottom of the photovoltaic panel 2.

[0052] The transmission mechanism includes a support rod 3, a driving assembly 4, a U-shaped frame 7, a lead screw 9, a forward and reverse motor 8, a transmission block 10, and an L-shaped connecting frame 11.

[0053] The U-shaped frame 7 consists of two vertical plates and a long strip base plate. The tops of the two vertical plates are fixed to the bottom of the photovoltaic panel 2. A lead screw 9 is horizontally installed between the two vertical plates, passing through the two vertical plates. One end of the lead screw 9 is connected to the output shaft of the forward and reverse motor 8 through a coupling, and the other end is rotatably connected to the vertical plate of the U-shaped frame 7 through a bearing.

[0054] The transmission block 10 has a threaded through hole at its center, through which it is fitted onto the lead screw 9 and threadedly connected to the lead screw 9. The base plate of the U-shaped frame 7 has a sliding groove 21 at its center along its length. The width of the sliding groove 21 corresponds to the width of the transmission block 10. In use, the bottom of the transmission block 10 is placed in the sliding groove 21, and the forward and reverse motor 8 drives the lead screw 9 to rotate, causing the lead screw 9 to drive the transmission block 10 to reciprocate along it.

[0055] On both sides of the transmission block 10, there are horizontally placed L-shaped connecting frames 11. The L-shaped connecting frames 11 are parallel to the photovoltaic panel 2. The end of the L-shaped connecting frame 11 away from the transmission block 10 is vertically fixed with a support rod 3. The support rod 3 is vertically located on the outer edge of the photovoltaic panel 2. The top of the support rod 3 is connected to the driving component 4, which is a flag.

[0056] like Figure 3 As shown, the sound-generating mechanism includes an air collection box 12, an air intake pipe 13, an exhaust pipe 14, a whistle 15, a piston plate 16, a push rod 18, and a linkage plate 19.

[0057] An air collection box 12 is fixed to the bottom of a U-shaped frame 7. A push rod 18 is horizontally installed inside the air collection box 12. One end of the push rod 18 passes through the side wall of the air collection box 12 and into the interior, while the other end is fixed to a linkage plate 19. The top of the linkage plate 19 passes through a sliding groove 21 and is fixed to the bottom of the transmission block 10. The width of the linkage plate 19 corresponds to the width of the sliding groove 21, which passes through the bottom plate of the U-shaped frame 7. A piston plate 16 is fixed to the end of the push rod 18 inside the air collection box 12. The shape and size of the piston plate 16 are adapted to the side of the air collection box 12, and its outer wall is in sealed contact with the inner wall of the air collection box 12. The side wall of the air collection box 12 away from the linkage plate 19 is connected to an intake pipe 13 through an intake one-way valve, and the top wall is connected to an exhaust pipe 14 through an exhaust one-way valve. The end of the exhaust pipe 14 away from the air collection box 12 is connected to a whistle 15.

[0058] During operation, the reversible motor 8 drives the lead screw 9 to rotate in both directions, and the transmission block 10 moves back and forth along the sliding groove 21. The transmission block 10 drives the L-shaped connecting frame 11, the support rod 3, and the flag to move back and forth synchronously, using the flag's movement to drive away birds. Simultaneously, the reversible movement of the transmission block 10 drives the linkage plate 19, which in turn drives the push rod 18 and the piston plate 16 to move within the air collection box 12. When the piston plate 16 moves away from the air inlet pipe 13, a negative pressure is created within the air collection box 12, allowing outside air to enter through the air inlet pipe 13. When the piston plate 16 moves in the opposite direction, air enters the whistle 15 through the exhaust pipe 14, causing the whistle 15 to emit a sound. The sound, combined with the flag movement driven by the transmission mechanism, achieves a dual effect of sound and light to repel birds.

[0059] Example 5

[0060] Bird deterrent devices for photovoltaic panels, such as Figure 1 and2 As shown, it includes a transmission mechanism installed at the bottom of the photovoltaic panel 2.

[0061] The transmission mechanism includes a support rod 3, a driving assembly 4, a U-shaped frame 7, a lead screw 9, a forward and reverse motor 8, a transmission block 10, and an L-shaped connecting frame 11.

[0062] The U-shaped frame 7 consists of two vertical plates and a long strip base plate. The tops of the two vertical plates are fixed to the bottom of the photovoltaic panel 2. A lead screw 9 is horizontally installed between the two vertical plates, passing through the two vertical plates. One end of the lead screw 9 is connected to the output shaft of the forward and reverse motor 8 through a coupling, and the other end is rotatably connected to the vertical plate of the U-shaped frame 7 through a bearing.

[0063] The transmission block 10 has a threaded through hole at its center, through which it is fitted onto the lead screw 9 and threadedly connected to the lead screw 9. The base plate of the U-shaped frame 7 has a sliding groove 21 at its center along its length. The width of the sliding groove 21 corresponds to the width of the transmission block 10. In use, the bottom of the transmission block 10 is placed in the sliding groove 21, and the forward and reverse motor 8 drives the lead screw 9 to rotate, causing the lead screw 9 to drive the transmission block 10 to reciprocate along it.

[0064] On both sides of the transmission block 10, horizontally placed L-shaped connecting frames 11 are fixed. The L-shaped connecting frames 11 are parallel to the photovoltaic panel 2. A support rod 3 is vertically fixed to the end of the L-shaped connecting frame 11 away from the transmission block 10. The support rod 3 is vertically located on the outer edge of the photovoltaic panel 2. The top of the support rod 3 is connected to the driving component 4. Figure 4 As shown, the driving component 4 consists of several traction ropes 5 and reflectors 6. One end of the traction rope 5 is fixed to the end of the support rod 3, and the other end is fixed to the reflector 6. The traction ropes 5 are evenly distributed around the end of the support rod 3.

[0065] The photovoltaic panel 2 is supported by the bracket 1, and a radar sensor 23 is fixed on its top edge. A controller 24 is fixed on the bracket 1. The radar sensor 23 and the controller 24 are connected by a signal, and the controller 24 is connected by a signal to the forward and reverse motor 8.

[0066] When the radar sensor 23 detects a bird during operation, it transmits a signal to the controller 24. The controller 24 then activates the forward and reverse motor 8, which in turn drives the reflector 6 and the traction rope 5 to move. Once the bird leaves, the radar sensor 23 outputs no signal, and the controller 24 stops the motor, achieving automatic start-stop and reducing energy consumption.

[0067] Example 6

[0068] Bird deterrent devices for photovoltaic panels, such as Figure 1 and 2 As shown, it includes a transmission mechanism and a sound-generating mechanism installed at the bottom of the photovoltaic panel 2.

[0069] The transmission mechanism includes a support rod 3, a driving assembly 4, a U-shaped frame 7, a lead screw 9, a forward and reverse motor 8, a transmission block 10, and an L-shaped connecting frame 11.

[0070] The U-shaped frame 7 consists of two vertical plates and a long strip base plate. The tops of the two vertical plates are fixed to the bottom of the photovoltaic panel 2. A lead screw 9 is horizontally installed between the two vertical plates, passing through the two vertical plates. One end of the lead screw 9 is connected to the output shaft of the forward and reverse motor 8 through a coupling, and the other end is rotatably connected to the vertical plate of the U-shaped frame 7 through a bearing.

[0071] The transmission block 10 has a threaded through hole at its center, through which it is fitted onto the lead screw 9 and threadedly connected to the lead screw 9. The base plate of the U-shaped frame 7 has a sliding groove 21 at its center along its length. The width of the sliding groove 21 corresponds to the width of the transmission block 10. In use, the bottom of the transmission block 10 is placed in the sliding groove 21, and the forward and reverse motor 8 drives the lead screw 9 to rotate, causing the lead screw 9 to drive the transmission block 10 to reciprocate along it.

[0072] On both sides of the transmission block 10, there are horizontally placed L-shaped connecting frames 11. The L-shaped connecting frames 11 are parallel to the photovoltaic panel 2. The end of the L-shaped connecting frame 11 away from the transmission block 10 is vertically fixed with a support rod 3. The support rod 3 is vertically located on the outer edge of the photovoltaic panel 2. The top of the support rod 3 is connected to the driving component 4, which is a flag.

[0073] like Figure 3 As shown, the sound-generating mechanism includes an air collection box 12, an air intake pipe 13, an exhaust pipe 14, a whistle 15, a piston plate 16, a push rod 18, and a linkage plate 19.

[0074] An air collection box 12 is fixed to the bottom of a U-shaped frame 7. A push rod 18 is horizontally installed inside the air collection box 12. One end of the push rod 18 passes through the side wall of the air collection box 12 and into the interior, while the other end is fixed to a linkage plate 19. The top of the linkage plate 19 passes through a sliding groove 21 and is fixed to the bottom of the transmission block 10. The width of the linkage plate 19 corresponds to the width of the sliding groove 21, which passes through the bottom plate of the U-shaped frame 7. A piston plate 16 is fixed to the end of the push rod 18 inside the air collection box 12. The shape and size of the piston plate 16 are adapted to the side of the air collection box 12, and its outer wall is in sealed contact with the inner wall of the air collection box 12. The side wall of the air collection box 12 away from the linkage plate 19 is connected to an intake pipe 13 through an intake one-way valve, and the top wall is connected to an exhaust pipe 14 through an exhaust one-way valve. The end of the exhaust pipe 14 away from the air collection box 12 is connected to a whistle 15.

[0075] The photovoltaic panel 2 is supported by the bracket 1, and a radar sensor 23 is fixed on its top edge. A controller 24 is fixed on the bracket 1. The radar sensor 23 and the controller 24 are connected by a signal, and the controller 24 is connected by a signal to the forward and reverse motor 8.

[0076] During operation, radar sensor 23 triggers controller 24 to start forward and reverse motor 8, transmission block 10 drives the bird deterrent assembly 4 to move, and simultaneously drives piston plate 16 to move via linkage plate 19, causing whistle 15 to sound. The waving of the flag and the sound of whistle 15 work in synergy to adapt to the diverse habits of birds and improve the bird deterrent effect.

[0077] It should be noted that the forward and reverse motor 8, radar sensor 23 and controller 24 are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The specific composition and principle of the power supply of motor 8, radar sensor 23 and controller 24 are clear to those skilled in the art, so they will not be described in detail here.

Claims

1. A bird-repelling device for photovoltaic panels, characterized in that, It includes a lead screw (9) and a U-shaped frame (7). The lead screw (9) passes horizontally through the two vertical plates of the U-shaped frame (7). One end of the lead screw (9) is equipped with a forward and reverse motor (8), and the other end is rotatably connected to the vertical plate of the U-shaped frame (7) through a bearing. A transmission block (10) is fitted on the lead screw (9), and a sliding groove (21) is provided on the bottom plate of the U-shaped frame (7) along its length direction. The bottom of the transmission block (10) is located in the sliding groove (21). The transmission block (10) has horizontally placed L-shaped connecting frames (11) fixed on both sides. The end of the L-shaped connecting frame (11) away from the transmission block (10) is vertically fixed with a support rod (3). The top of the support rod (3) is connected to a driving component (4).

2. The bird-repelling device for photovoltaic panels according to claim 1, characterized in that, It also includes an air collection box (12) fixed to the bottom of the U-shaped frame (7). A push rod (18) is horizontally arranged inside the air collection box (12). One end of the push rod (18) passes through the side wall of the air collection box (12) into its interior, and the other end is fixed with a linkage plate (19). The top of the linkage plate (19) is fixed to the bottom of the transmission block (10). A piston plate (16) is fixed to the end of the push rod (18) inside the gas collection box (12), and the outer wall of the piston plate (16) is in sealed contact with the inner wall of the gas collection box (12); The side wall of the air collection box (12) away from the linkage plate (19) is connected to the air inlet pipe (13), and the top wall is connected to the exhaust pipe (14). The end of the exhaust pipe (14) away from the air collection box (12) is connected to the whistle (15).

3. The bird-repelling device for photovoltaic panels according to claim 2, characterized in that, The intake pipe (13) and exhaust pipe (14) are respectively connected to the air collection box (12) via one-way valves.

4. The bird-repelling device for photovoltaic panels according to claim 1, characterized in that, The driving-off component (4) is a flag.

5. The bird-repelling device for photovoltaic panels according to claim 1, characterized in that, The driving component (4) includes several traction ropes (5) and a reflector (6). One end of the traction rope (5) is fixed to the end of the support rod (3), and the other end is fixedly connected to the reflector (6).

6. The bird-repelling device for photovoltaic panels according to claim 1, characterized in that, The forward and reverse rotating motor (8) is a servo motor, stepper motor, single-phase asynchronous motor, three-phase asynchronous motor, DC brushless motor or DC brushed motor.

7. The bird-repelling device for photovoltaic panels according to claim 1, characterized in that, Two parallel guide plates are fixed between the two vertical plates of the U-shaped frame (7). The two guide plates are located on both sides of the lead screw (9), and their inner walls are in contact with the transmission block (10). The bottom of each guide plate is higher than the connection part between the L-shaped connecting frame (11) and the transmission block (10).

8. The bird-repelling device for photovoltaic panels according to claim 1, characterized in that, It also includes a controller (24) and a radar sensor (23) fixed around the photovoltaic panel (2). The radar sensor (23) is connected to the controller (24) via a signal, and the controller (24) is connected to the forward and reverse motor (8) via a signal.

Images