Photovoltaic tracking support based on shadow sensing technology

Abstract

The invention provides a photovoltaic tracking support based on a shadow sensing technology, and relates to the field of photovoltaic technologies. The photovoltaic tracking support based on the shadow sensing technology comprises a mounting plate, a photosensitive sensor assembly, a mounting support, a first motor and a second motor. According to the photovoltaic tracking support, the shadow sensing technology is utilized, and the change of the perpendicular incidence angle of solar rays can be sensed in real time. Through the photosensitive sensor assembly, the bracket can accurately capture the change of the light intensity, so that the real-time tracking of the solar rays is realized. When the direct sunlight angle is changed, the mounting bracket on the bracket can shield part of the sunlight, so that the illumination intensity sensed by the photosensitive sensor assembly is changed. After the control device receives the information, the motor driving system is started immediately, the inclination angle of the movable rod is adjusted, and then the inclination angle of the solar module is changed. The process is fully automatic, manual intervention is not needed, and it is ensured that the solar module always faces the optimal illumination direction.

Description

Technical Field

[0001] The invention relates to the field of photovoltaic technology, and in particular to a photovoltaic tracking bracket based on shadow sensing technology. Background Art

[0002] As the global demand for renewable energy continues to grow, the importance of solar energy as a clean, renewable energy form is becoming increasingly prominent. Photovoltaic technology, as one of the main means of utilizing solar energy, has been widely used in various fields. However, traditional fixed photovoltaic brackets have problems such as low power generation efficiency and poor adaptability, and cannot meet the growing energy demand and diversified application scenarios.

[0003] Traditional fixed photovoltaic supports usually fix solar panels at a fixed angle and cannot be adjusted in real time according to changes in sunlight. This results in the solar panels being unable to fully receive sunlight during periods when the solar altitude angle changes greatly, thereby reducing power generation efficiency. In addition, fixed photovoltaic supports are also affected by factors such as geographical location and seasonal changes, and cannot adapt to power generation needs under different lighting conditions.

[0004] In order to solve these problems, people began to explore photovoltaic tracking brackets based on shadow sensing technology. This bracket automatically adjusts the tilt angle of the solar panel by sensing the changes in sunlight, so that it always faces the best light direction. However, the existing photovoltaic tracking brackets based on shadow sensing technology still have some shortcomings, such as complex structure, poor stability, and low tracking accuracy. Summary of the invention

[0005] In view of the problems existing in the above background technology, it is particularly important for the present invention to develop a photovoltaic tracking bracket based on shadow sensing technology with simple structure, good stability and high tracking accuracy. This bracket can not only significantly improve the utilization efficiency of solar energy, but also adapt to different geographical locations and seasonal lighting conditions, providing a more efficient and reliable solution for the field of solar power generation.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a photovoltaic tracking bracket based on shadow sensing technology, comprising a mounting plate, a photosensor assembly, a mounting bracket, a first motor and a second motor, the top of the mounting plate is penetrated with a slot, the photosensor assembly is fixedly connected to the inside of the slot, the bottom of the photosensor assembly and the bottom of the mounting plate are located in the same plane, the inside of the slot is fixedly connected to a limit rod, both ends of the limit rod are penetrated and connected with a shielding plate, the top of the mounting plate is fixedly connected to a fixing rod, the top of the fixing rod is rotatably connected to the mounting bracket through a rotating shaft, and the mounting bracket A limiting slot is provided at the bottom of the frame, the second motor is fixedly connected to the side wall of the mounting bracket, the driving end of the second motor is fixedly connected to a screw rod, the screw rod is located inside the limiting slot, the end of the screw rod away from the second motor is rotatably connected to the inside of the limiting slot, the outer surface of the screw rod is threadedly connected to a movable block, the outer surface of the movable block is rotatably connected to a movable rod through a rotating shaft, the first motor is fixedly connected to the top of the mounting plate, the driving end of the first motor is fixedly connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to a movable plate, and the outer surface of the movable plate is rotatably connected to the end of the movable rod away from the movable block through a rotating shaft.

[0007] Preferably, a connecting plate is fixedly connected to the top of the mounting plate, and one end of the threaded rod away from the first motor is rotatably connected to the connecting plate.

[0008] Preferably, the movable plate is made of a transparent material, and the movable plate is in contact with the top of the mounting plate.

[0009] Preferably, the movable block is slidably engaged in the interior of the limiting groove.

[0010] Preferably, the bottom of the shielding plate contacts the top of the photosensor assembly, and the top of the shielding plate and the top of the mounting plate are located in the same plane.

[0011] Working principle: When using the photovoltaic tracking bracket based on shadow sensing technology, first, the mounting plate is firmly bolted to the roof to ensure the stability of the bracket. Then, the solar panel is mounted on the mounting bracket and its initial angle is adjusted, usually tilted toward the east to capture the first rays of sunlight in the morning. The tilted mounting bracket is located above the photosensitive sensor assembly and will block some light in the initial state. This is the basis of shadow sensing technology. As time goes by, the position of the sun continues to move and its direct angle changes accordingly. This causes the projection area of ​​the mounting bracket to change, and some photosensitive sensor assemblies begin to feel the light. The photosensitive sensor assembly can sense the change in light intensity and transmit this information to the control device in real time. After receiving the information from the photosensitive sensor assembly, the control device will analyze and calculate to determine the optimal tilt angle of the solar panel. The control device drives the screw rod to rotate through the second motor. The movable block on the screw rod will move along the limit slot away from the sun to prepare for the tilt angle adjustment of the movable rod. At the same time, the control device drives the threaded rod to rotate through the first motor. The movable plate on the threaded rod moves along the top of the mounting plate, driving the movable rod connected to the movable block and the movable plate to move. As the movable plate moves, the tilt angle of the movable rod changes. This change in tilt angle supports the mounting bracket through the movable rod, causing it to rotate around the shaft on the fixed rod. Ultimately, the tilt angle of the solar panel on the mounting bracket is adjusted so that it can better capture and convert sunlight. Depending on the latitude and seasonal changes in the area where the mounting bracket is located, the area exposed by the photosensor assembly can be changed by adjusting the position of the shielding plate on the limit rod. In this way, the photosensor assembly can more accurately sense the changes in sunlight in different seasons and latitudes, thereby achieving more precise adjustment of the tilt angle of the solar panel.

[0012] The present invention provides a photovoltaic tracking bracket based on shadow sensing technology. It has the following beneficial effects: 1. The photovoltaic tracking bracket based on shadow sensing technology can sense the changes in the direct angle of sunlight in real time by using shadow sensing technology. Through the photosensitive sensor assembly, the bracket can accurately capture the changes in light intensity, thereby realizing real-time tracking of sunlight. When the direct angle of sunlight changes, the mounting bracket on the bracket will block part of the light, causing the light intensity felt by the photosensitive sensor assembly to change. After receiving this information, the control device will immediately start the motor drive system to adjust the inclination angle of the movable rod, thereby changing the inclination angle of the solar module. This process is fully automated and does not require human intervention, ensuring that the solar module is always facing the optimal light direction. Due to the ability to track sunlight in real time and automatically adjust the inclination angle, the photovoltaic tracking bracket can maximize the capture and conversion of sunlight, thereby improving power generation efficiency. Compared with traditional fixed photovoltaic brackets, the power generation of this bracket can be increased by about 20%, significantly improving the economic benefits of the photovoltaic system.

[0013] 2. The photovoltaic tracking bracket based on shadow sensing technology is designed with changes in lighting conditions at different latitudes and seasons in mind. By adjusting the position of the shielding plate on the limit rod, the exposed area of ​​the photosensitive sensor assembly can be flexibly adjusted to meet the needs of different lighting angles. This feature enables the bracket to be widely used around the world to meet the power generation needs of different regions. The installation process of the photovoltaic tracking bracket is simple and quick. The initial installation can be completed by fixing the mounting plate to the roof with bolts. The maintenance of the bracket is also relatively simple. Due to the use of intelligent control systems and motor drive systems, the frequency and difficulty of manual maintenance are reduced.

[0014] 3. The photovoltaic tracking bracket based on shadow sensing technology can significantly improve the power generation efficiency, thereby reducing the dependence on and consumption of traditional energy. This helps to reduce carbon emissions, reduce the impact on the environment, and promote sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of point A.

[0016] Among them, 1. mounting plate; 2. slot; 3. photosensitive sensor assembly; 4. limit rod; 5. shielding plate; 6. fixing rod; 7. mounting bracket; 8. limit slot; 9. screw rod; 10. movable rod; 11. first motor; 12. threaded rod; 13. movable plate; 14. second motor; 15. movable block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example:

[0018] like Figure 1-2 As shown, an embodiment of the present invention provides a photovoltaic tracking bracket based on shadow sensing technology, including a mounting plate 1, a photosensor assembly 3, a mounting bracket 7, a first motor 11 and a second motor 14. A slot 2 is provided through the top of the mounting plate 1, the photosensor assembly 3 is fixedly connected inside the slot 2, the bottom of the photosensor assembly 3 and the bottom of the mounting plate 1 are located in the same plane, a limiting rod 4 is fixedly connected inside the slot 2, and shielding plates 5 are respectively provided at both ends of the limiting rod 4. A fixing rod 6 is fixedly connected to the top of the mounting plate 1, and the top end of the fixing rod 6 is rotatably connected to the mounting bracket 7 through a rotating shaft, and a limiting slot is provided at the bottom of the mounting bracket 7. 8. The second motor 14 is fixedly connected to the side wall of the mounting bracket 7, and the driving end of the second motor 14 is fixedly connected to a screw rod 9, which is located inside the limiting groove 8. The end of the screw rod 9 away from the second motor 14 is rotatably connected to the inside of the limiting groove 8, and the outer surface of the screw rod 9 is threadedly connected to a movable block 15, and the outer surface of the movable block 15 is rotatably connected to a movable rod 10 through a rotating shaft. The first motor 11 is fixedly connected to the top of the mounting plate 1, and the driving end of the first motor 11 is fixedly connected to a threaded rod 12, and the outer surface of the threaded rod 12 is threadedly connected to a movable plate 13, and the outer surface of the movable plate 13 is rotatably connected to the end of the movable rod 10 away from the movable block 15 through a rotating shaft.

[0019] A connecting plate is fixedly connected to the top of the mounting plate 1, and the end of the threaded rod 12 away from the first motor 11 is rotatably connected to the connecting plate. By adding the connecting plate, the connection between the threaded rod 12 and the mounting plate 1 is more stable, reducing the risk of loosening due to long-term operation or external force. This design simplifies the installation process of the threaded rod 12 and makes it easier to fix it to the mounting plate 1. When the threaded rod 12 needs to be maintained or replaced, the design of the connecting plate makes this process simpler and faster.

[0020] The movable plate 13 is made of a transparent material and contacts the top of the mounting plate 1. The movable plate 13 made of a transparent material allows light to penetrate, which helps the photosensitive sensor assembly 3 to more accurately sense changes in light intensity, thereby improving the accuracy of the tracking system. The transparent movable plate 13 reduces the shadow interference caused by the shading of the movable plate 13 itself, ensuring that the photosensitive sensor assembly 3 can receive more realistic light information.

[0021] The movable block 15 is designed to be slidably engaged inside the limiting groove 8. The slidably engaged design ensures the precise positioning of the movable block 15 in the limiting groove 8, and reduces the tracking error caused by the shaking or offset of the movable block 15. This design increases the contact area between the movable block 15 and the limiting groove 8, thereby improving the stability of the entire structure. The slidably engaged design makes it easier to remove the movable block 15 from the limiting groove 8 for maintenance or replacement.

[0022] The bottom of the shielding plate 5 is in contact with the top of the photosensitive sensor assembly 3, and the top of the shielding plate 5 is located in the same plane as the top of the mounting plate 1. The close contact between the shielding plate 5 and the photosensitive sensor assembly 3 ensures that light can be accurately blocked or allowed to pass, thereby improving the sensitivity of the photosensitive sensor assembly 3 to light changes. The design that the shielding plate 5 and the top of the mounting plate 1 are located in the same plane makes the entire structure more compact and reduces space occupation. This design makes it easier to adjust the position of the shielding plate 5 to adapt to changes in light conditions at different latitudes and seasons.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic tracking bracket based on shadow sensing technology, comprising a mounting plate (1), a photosensitive sensor assembly (3), a mounting bracket (7), a first motor (11) and a second motor (14), characterized in that: The top of the mounting plate (1) is provided with a slot (2) extending through it, the photosensor assembly (3) is fixedly connected to the inside of the slot (2), the bottom of the photosensor assembly (3) and the bottom of the mounting plate (1) are located in the same plane, the inside of the slot (2) is fixedly connected to a limit rod (4), both ends of the limit rod (4) are respectively connected to shielding plates (5), the top of the mounting plate (1) is fixedly connected to a fixing rod (6), the top of the fixing rod (6) is rotatably connected to the mounting bracket (7) via a rotating shaft, the bottom of the mounting bracket (7) is provided with a limit slot (8), the second motor (14) is fixedly connected to the side wall of the mounting bracket (7), and the driving end of the second motor (14) is fixedly connected to the side wall of the mounting bracket (7). A screw rod (9) is fixedly connected, the screw rod (9) is located inside the limiting groove (8), one end of the screw rod (9) away from the second motor (14) is rotatably connected to the inside of the limiting groove (8), the outer surface of the screw rod (9) is threadedly connected to a movable block (15), the outer surface of the movable block (15) is rotatably connected to a movable rod (10) via a rotating shaft, the first motor (11) is fixedly connected to the top of the mounting plate (1), the driving end of the first motor (11) is fixedly connected to a threaded rod (12), the outer surface of the threaded rod (12) is threadedly connected to a movable plate (13), and the outer surface of the movable plate (13) is rotatably connected to one end of the movable rod (10) away from the movable block (15) via a rotating shaft.

2. The photovoltaic tracking bracket based on shadow sensing technology according to claim 1, characterized in that: A connecting plate is fixedly connected to the top of the mounting plate (1), and one end of the threaded rod (12) away from the first motor (11) is rotatably connected to the connecting plate.

3. The photovoltaic tracking bracket based on shadow sensing technology according to claim 1, characterized in that: The movable plate (13) is made of a transparent material, and the movable plate (13) is in contact with the top of the mounting plate (1).

4. The photovoltaic tracking bracket based on shadow sensing technology according to claim 1, characterized in that: The movable block (15) is slidably engaged in the interior of the limiting groove (8).

5. The photovoltaic tracking bracket based on shadow sensing technology according to claim 1, characterized in that: The bottom of the shielding plate (5) contacts the top of the photosensitive sensor assembly (3), and the top of the shielding plate (5) and the top of the mounting plate (1) are located in the same plane.

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