Bird expelling device for photovoltaic module

Abstract

The invention relates to the field of bird repelling devices, in particular to a bird repelling device for a photovoltaic module, which comprises a box body, the top of the box body is rotatably connected with a rotating shaft, and the top of the rotating shaft is fixedly connected with a bird repelling frame; the rotating shaft extends downwards into the box body, a stirring paddle is arranged on the shaft section, located in the box body, of the rotating shaft, a storage bottle is arranged on the top wall of the box body, a bird repellent is stored in the storage bottle, a water dropper is arranged at the bottom of the storage bottle, and the water dropper is used for releasing bird repellent liquid drops into the box body; a release opening is formed in the box body and located in one side of the storage bottle, a sliding plate is slidably connected to the bottom of the top of the box body, two alignment grooves are formed in the sliding plate and communicate with the top face and the bottom face of the sliding plate, and a driving part used for driving the sliding plate to slide is arranged on the box body. By the adoption of the technical scheme, wind power is used for promoting bird repelling gas to be accumulated in the box body when wind exists, the bird repelling gas is released when no wind exists, and the defect of the bird repelling function of the bird repelling frame when no wind exists is overcome.

Description

Technical Field

[0001] This invention relates to the field of bird deterrence technology, and more specifically, to a bird deterrence device for photovoltaic modules. Background Technology

[0002] With the rapid development of photovoltaic power generation, establishing solar photovoltaic power plants in vacant or mountainous areas and installing rows of solar panels to generate electricity from solar energy not only solves the power supply problem but is also environmentally friendly. However, in practical applications, birds often perch on the solar panels, causing damage, and bird droppings can also corrode the solar panels, affecting their normal power generation efficiency.

[0003] Existing bird repellers are mainly classified into windmill-shaped bird repellers, sonic bird repellers, and laser bird repellers. Windmill-shaped bird repellers rely on wind power to rotate, generating movements or sounds to frighten birds. Compared to the other two types, their advantage is that they do not consume additional electricity. However, in windless weather, windmill-shaped bird repellers cannot operate, and their bird-repelling function disappears. Therefore, existing technologies have developed applications that utilize motors to drive windmill-shaped bird repellers in windless environments. Although this introduces electricity consumption, the fact that it is only used in windless conditions reduces overall energy usage.

[0004] In conventional technology, the motor starts after a windless condition is detected. However, wind force is uncontrollable and will stop and start intermittently. Furthermore, the motor consumes additional power due to the starting voltage, meaning that frequent start-stop cycles under certain operating conditions consume more power than continuous operation. Therefore, a bird-repelling device for photovoltaic modules is needed that can maintain the windmill-shaped bird deterrent's capabilities even in windless conditions. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a bird-repelling device for photovoltaic modules, which utilizes wind power to promote the accumulation of bird-repelling gas inside the box when there is wind, and naturally releases the bird-repelling gas when there is no wind, thus filling the gap in the bird-repelling function of the bird-repelling frame when there is no wind.

[0006] This invention is achieved through the following technical solution: a bird repelling device for photovoltaic modules, comprising a box, a rotating shaft rotatably connected to the top of the box, and a bird repelling frame fixedly connected to the top of the rotating shaft;

[0007] The rotating shaft extends downward into the box. A stirring paddle is installed on the shaft section inside the box. A storage bottle is installed on the top wall of the box. The storage bottle contains bird repellent. A dripper is installed at the bottom of the storage bottle. The dripper is used to release bird repellent droplets into the box.

[0008] The housing has a release port located on one side of the storage bottle. A sliding plate is slidably connected to the top and bottom of the housing. The sliding plate has two alignment slots that connect the top and bottom surfaces of the sliding plate. The housing has a drive unit for driving the sliding plate to slide. When the shaft rotates, the drive unit drives the sliding plate to move so that the sliding plate closes the dropper and the release port. When the shaft stops, the drive unit drives the alignment slots to align with the dropper and the release port respectively.

[0009] Furthermore, the driving component includes an elastic element. One end of the elastic element is fixedly connected to the housing, and the other end of the elastic element is fixedly connected to the slide plate. The end of the slide plate away from the elastic element is provided with a first inclined surface. Several guide blocks are fixed circumferentially on the rotating shaft. The end of the guide blocks away from the rotating shaft is provided with a second inclined surface. The second inclined surface is used to generate a thrust acting on the first inclined surface when the rotating shaft rotates, causing the slide plate to squeeze the elastic element.

[0010] Furthermore, a rain shelter is provided on the top of the box, located above the release port.

[0011] Furthermore, the bottom of the box is equipped with absorbent fabric.

[0012] Furthermore, a sealing gasket is provided at the connection between the housing and the rotating shaft.

[0013] Furthermore, the bird deterrent frame includes several branches, which are distributed circumferentially around the pivot, and each branch has a wind cup at the end furthest from the pivot.

[0014] Furthermore, each wind turbine is equipped with a reflector.

[0015] Furthermore, bird-startling bells are attached to the bottom of each branch.

[0016] Furthermore, the driving component is an electric cylinder, and a speed sensor is provided on the rotating shaft. The speed sensor is used to detect the rotational speed of the rotating shaft. The electric cylinder is used to extend when the rotational speed detected by the speed sensor is lower than a first preset value, and to retract when the rotational speed detected by the speed sensor is higher than a second preset value.

[0017] The technical solution of the present invention has at least the following beneficial effects:

[0018] This solution is designed for deployment near photovoltaic modules. When natural winds are present in the deployment environment, the bird deterrent frame uses wind power to create a rotating motion centered on its axis, startling and driving away birds. The rotation of the axis drives a stirring paddle on it. The stirring paddle's function is to disrupt the airflow within the enclosure, causing air movement.

[0019] The storage bottle stores bird repellent. The dripper releases the repellent into the enclosure when the slide is not closed. The repellent, initially liquid, drips into the enclosure, where airflow from the agitator causes it to evaporate rapidly into a gaseous state. When there is continuous wind, the evaporated repellent remains stored. When the wind subsides, the slide moves, connecting the release port and dripper to the enclosure. The release port then releases the vaporized repellent, thus mitigating the bird deterrent's inability to repel birds in still conditions. Attached Figure Description

[0020] Figure 1 This is an isometric schematic diagram of an embodiment of the bird deterrent device for photovoltaic modules of the present invention;

[0021] Figure 2 This is a top view schematic diagram of an embodiment of the bird deterrent device for photovoltaic modules according to the present invention;

[0022] Figure 3 This is a front view schematic diagram of an embodiment of the bird repelling device for photovoltaic modules according to the present invention;

[0023] Figure 4 This is a cross-sectional schematic diagram of the housing of an embodiment of the bird deterrent device for photovoltaic modules of the present invention;

[0024] Figure 5 This is a schematic diagram of the drive component structure of an embodiment of the bird deterrent device for photovoltaic modules according to the present invention;

[0025] Figure 6 This is a schematic diagram of the slider position during windless periods in an embodiment of the bird deterrent device for photovoltaic modules according to the present invention.

[0026] Figure 7 This is a schematic diagram of the slider position during windy periods in an embodiment of the bird deterrent device for photovoltaic modules according to the present invention.

[0027] Reference numerals: 1. Box body; 2. Rotating shaft; 3. Bird deterrent frame; 4. Stirring paddle; 5. Storage bottle; 6. Dripping head; 7. Release port; 8. Slide plate; 9. Alignment groove; 10. Drive component; 11. Rain shelter; 12. Absorbent fabric; 13. Sealing gasket; 301. Branch; 302. Air bowl; 303. Reflector; 304. Bird alarm bell; 1001. Elastic component; 1002. First inclined plane; 1003. Guide block; 1004. Second inclined plane. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0031] The following detailed description illustrates the specific implementation method:

[0032] Example 1

[0033] As attached Figures 1-7 As shown, a bird deterrent device for photovoltaic modules includes a housing 1. A rotating shaft 2 is rotatably connected to the top of the housing 1. A bird deterrent frame 3 is bolted to the top of the rotating shaft 2. The bird deterrent frame 3 includes several branches 301, with a total of 3 branches 301. The branches 301 are evenly distributed circumferentially around the rotating shaft 2. A wind cup 302 is bolted to the end of each branch 301 away from the rotating shaft 2. A reflector 303 is glued and fixed inside each wind cup 302. A bird-scare bell 304 is suspended from the bottom of each branch 301.

[0034] The rotating shaft 2 extends downward into the housing 1. A sealing gasket 13 is provided at the connection between the housing 1 and the rotating shaft 2. The sealing gasket 13 can effectively improve the sealing performance and reduce the leakage of gas from the housing 1. A stirring paddle 4 is provided on the shaft section of the rotating shaft 2 located inside the housing 1. The stirring paddle 4 is spiral-shaped to generate a spiral turbulent airflow. A storage bottle 5 is detachably connected to the upper surface of the top wall of the housing 1. The storage bottle 5 stores bird repellent. The detachable connection of the storage bottle 5 makes it easy to replace and add bird repellent. A dropper 6 is provided at the bottom of the storage bottle 5. The dropper 6 is used to release bird repellent droplets into the housing 1.

[0035] The housing 1 has a release port 7 located on one side of the storage bottle 5. The top and bottom of the housing 1 are slidably connected to a slide plate 8. The slide plate 8 has two alignment grooves 9. The alignment grooves 9 connect the top and bottom surfaces of the slide plate 8. The housing 1 is provided with a drive component 10 for driving the slide plate 8 to slide. The drive component 10 is used to drive the slide plate 8 to move when the rotating shaft 2 rotates, so that the slide plate 8 closes the dropper 6 and the release port 7. When the rotating shaft 2 stops, the drive component 10 drives the alignment grooves 9 to align with the dropper 6 and the release port 7 respectively.

[0036] The driving component 10 includes an elastic element 1001, which is a spring. One end of the elastic element 1001 is welded and fixed to the housing 1, and the other end of the elastic element 1001 is welded and fixed to the slide plate 8. The end of the slide plate 8 away from the elastic element 1001 is provided with a first inclined surface 1002. Several guide blocks 1003 are circumferentially fixed to the rotating shaft 2. The end of the guide block 1003 away from the rotating shaft 2 is provided with a second inclined surface 1004. The second inclined surface 1004 is used to generate a thrust acting on the first inclined surface 1002 when the rotating shaft 2 rotates, so that the slide plate 8 squeezes the elastic element 1001.

[0037] This embodiment is designed for deployment near photovoltaic modules. It can be erected on one side of the photovoltaic modules using a platform, ensuring sufficient proximity after installation without obstructing sunlight received by the modules. In environments with natural wind, the wind force pushes the wind cup 302, causing it to rotate around the pivot 2, thus startling and repelling birds. Birds are highly sensitive to light, especially sudden bright spots or moving light sources. Therefore, a reflector 303 is installed inside the wind cup 302. As the bird deterrent frame 3 rotates, the reflector 303 reflects light at different angles, creating a constantly flashing and rotating beam of light that startles birds. Bird alarm bells 304 are suspended from the bottom of each branch 301. These bells ring when the branch 301 rotates, further frightening birds with their sound.

[0038] When the rotating shaft 2 rotates, it drives the stirring paddle 4 on the rotating shaft 2 to rotate. The function of the stirring paddle 4 is to disturb the airflow inside the housing 1, causing the airflow inside the housing 1 to flow. During this process, the resistance generated by the stirring paddle 4 on the rotation of the rotating shaft 2 is small and will not interfere with the rotation process of the rotating shaft 2.

[0039] Storage bottle 5 is used to store bird repellent. Drip nozzle 6 releases the bird repellent into the container 1 when the slide plate 8 is not closed. Each drip nozzle releases a small amount of bird repellent, only enough to fill the gap during windless periods, thus extending the usage time after each refill of storage bottle 5. After release, the bird repellent drips into the container 1 in liquid form. The airflow within the container 1 is driven by the agitator 4. As the airflow moves, the gas evaporating near the liquid surface is quickly dispersed, keeping the vapor concentration near the liquid at a consistently low level, thus accelerating the evaporation rate. The faster the flow rate, the lower the vapor concentration near the liquid surface, resulting in faster evaporation and further promoting the rapid evaporation of the bird repellent into a gaseous state.

[0040] When the environment is windy, the shaft 2 will rotate continuously, causing the guide block 1003 on the shaft 2 to continuously contact the first inclined surface 1002 of the slide plate 8 using the second inclined surface 1004. The contact between the second inclined surface 1004 and the first inclined surface 1002 can change the direction of the force, causing the slide plate 8 to be continuously pushed back, so that the release port 7 and the drip head 6 are always blocked by the slide plate 8. Since the release port 7 is blocked, the evaporated bird repellent will be stored in the box 1. When the environment changes to a windless state, the rotating shaft 2 will not rotate, and the guide block 1003 will not push the slide plate 8 back. The slide plate 8 will extend under the action of the elastic element 1001, so that the release port 7 and the drip head 6 are connected to the inside of the box 1. Since the bird repellent evaporates inside the box 1, the gas density inside the box 1 will be slightly greater than the air density outside the box 1. Therefore, the release port 7 will release the vaporized bird repellent inside the box 1 to the outside. The vaporized bird repellent will produce an odor that birds dislike, causing birds to leave under the stimulation of the odor, thus making up for the deficiency that the bird repellent frame 3 cannot repel birds when there is no wind.

[0041] Because the bird repellent is converted into a gaseous state before release, its odor diffuses much faster than conventional bird repellent sprays, covering a larger area in a shorter time and providing greater effectiveness. Furthermore, since it compensates for the bird-repelling function of the bird-repelling frame 3 during windless periods, it is almost unaffected by wind after release, remaining near the photovoltaic modules instead of being blown away. During prolonged windless periods, the dripper 6 continuously releases bird repellent into the housing 1 as the slide plate 8 slides. Therefore, in addition to the bird repellent odor not being easily blown away, the dripper 6 also continuously releases bird repellent to replenish the odor near the photovoltaic modules.

[0042] When the environment changes from windless to windy, the rotating shaft 2 will rotate again, causing the second inclined surface 1004 on the guide block 1003 to act on the first inclined surface 1002, pushing the slide plate 8 back and sealing the release port 7 and the dripper 6. In this way, the bird repellent dripped from the dripper 6 during windless periods will be stored in the housing 1 and rapidly evaporated into a gaseous state under the action of the stirring paddle 4, preparing for the release of the bird repellent odor when the release port 7 opens again. Simultaneously, sealing the dripper 6 prevents the release of excessive bird repellent, reducing its consumption. This allows for control of the amount of bird repellent released based on the frequency of windless periods, improving the effectiveness of the bird repellent and reducing overlap between the release of the bird repellent and the activation process of the bird deterrent frame 3.

[0043] Example 2

[0044] The difference from the above embodiment is that the rain shelter 11 is bolted to the top of the box 1, the rain shelter 11 is located above the release port 7, and a railing can be further set around the release port 7 to block rainwater from entering. The bottom of the box 1 is provided with water-absorbing fabric 12.

[0045] Since the photovoltaic modules are placed outdoors, they are affected by the outdoor climate. Therefore, a rain shelter 11 is installed to prevent rainwater from flowing back into the housing 1 from the release port 7 during rainy weather, which would affect the evaporation process of the bird repellent.

[0046] Because the bird repellent dose released at one time is small, the bird repellent easily forms water droplets due to surface tension, reducing the evaporation area. Therefore, an absorbent fabric 12 is provided. When the bird repellent drips, under the capillary action of the absorbent fabric 12, the bird repellent will penetrate around the absorbent fabric 12, thereby increasing the evaporation area and improving the evaporation efficiency.

[0047] Example 3

[0048] The difference from the above embodiment is that the driving component 10 is an electric push cylinder (not shown in the figure), and the rotating shaft 2 is provided with a speed sensor (not shown in the figure). The speed sensor is used to detect the rotation speed of the rotating shaft 2. The electric push cylinder is used to extend when the rotation speed detected by the speed sensor is lower than a first preset value, and to retract when the rotation speed detected by the speed sensor is higher than a second preset value.

[0049] In Example 1, the drive component 10, equipped with an elastic element 1001, experiences resistance from the elastic element 1001 applied through the first inclined surface 1002 when the shaft 2 rotates, reducing its sensitivity to wind. At low wind speeds, the shaft 2 will not rotate effectively. Therefore, the drive component 10 can be designed as an electrically driven cylinder, reducing the resistance to the rotation of the bird deterrent frame 3. The speed sensor detects the rotational speed of the shaft 2, thus determining whether there is wind. If wind is present, the electric cylinder adjusts the position of the slide plate 8, blocking the release port 7 and the dripper 6. If the shaft 2 does not rotate or the speed is low, it indicates low wind. The electric cylinder adjusts the position of the slide plate 8, aligning the alignment groove 9 of the slide plate 8 with the release port 7 and the dripper 6, releasing the vaporized bird deterrent agent from the box 1 outside the box 1.

[0050] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A bird deterrent device for photovoltaic modules, characterized in that, Includes a box body (1), a rotating shaft (2) is rotatably connected to the top of the box body (1), and a bird deterrent frame (3) is fixedly connected to the top of the rotating shaft (2). The rotating shaft (2) extends downward into the box (1). The shaft section of the rotating shaft (2) located inside the box (1) is equipped with a stirring paddle (4). The top wall of the box (1) is equipped with a storage bottle (5). The storage bottle (5) stores bird repellent. The bottom of the storage bottle (5) is equipped with a dropper (6). The dropper (6) is used to release bird repellent droplets into the box (1). The box (1) is provided with a release port (7), which is located on one side of the storage bottle (5). The top and bottom of the box (1) are slidably connected to a slide plate (8). The slide plate (8) is provided with an alignment groove (9). There are two alignment grooves (9). The alignment grooves (9) connect the top and bottom surfaces of the slide plate (8). The box (1) is provided with a drive component (10) for driving the slide plate (8) to slide. The drive component (10) is used to drive the slide plate (8) to move when the rotating shaft (2) rotates, so that the slide plate (8) closes the dropper (6) and the release port (7). The drive component (10) is used to drive the alignment groove (9) to align with the dropper (6) and the release port (7) respectively when the rotating shaft (2) stops.

2. The bird deterrent device for photovoltaic modules according to claim 1, characterized in that, The driving component (10) includes an elastic element (1001). One end of the elastic element (1001) is fixedly connected to the housing (1), and the other end of the elastic element (1001) is fixedly connected to the slide plate (8). The slide plate (8) is provided with a first inclined surface (1002) at the end away from the elastic element (1001). Several guide blocks (1003) are fixed around the shaft (2). The guide block (1003) is provided with a second inclined surface (1004) at the end away from the shaft (2). The second inclined surface (1004) is used to generate a thrust acting on the first inclined surface (1002) when the shaft (2) rotates, so that the slide plate (8) squeezes the elastic element (1001).

3. The bird deterrent device for photovoltaic modules according to claim 1, characterized in that, The top of the box (1) is provided with a rain shelter (11), which is located above the release port (7).

4. The bird deterrent device for photovoltaic modules according to claim 1, characterized in that, The bottom of the box (1) is provided with absorbent fabric (12).

5. The bird deterrent device for photovoltaic modules according to claim 1, characterized in that, A sealing gasket (13) is provided at the connection between the housing (1) and the rotating shaft (2).

6. The bird deterrent device for photovoltaic modules according to claim 1, characterized in that, The bird deterrent frame (3) includes several branches (301), which are distributed circumferentially around the pivot (2). Each branch (301) is provided with a wind cup (302) at the end away from the pivot (2).

7. The bird deterrent device for photovoltaic modules according to claim 6, characterized in that, Each wind cup (302) is equipped with a reflector (303).

8. The bird deterrent device for photovoltaic modules according to claim 7, characterized in that, Bird-startling bells (304) are attached to the bottom of each branch (301).

9. The bird deterrent device for photovoltaic modules according to claim 1, characterized in that, The drive unit (10) is an electric cylinder, and a speed sensor is provided on the rotating shaft (2). The speed sensor is used to detect the rotation speed of the rotating shaft (2). The electric cylinder is used to extend when the speed detected by the speed sensor is lower than the first preset value, and to retract when the speed detected by the speed sensor is higher than the second preset value.

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