Photovoltaic support light following system

Abstract

The utility model relates to a photovoltaic support light following system which comprises a main frame used for fixing a photovoltaic panel, transverse light following probes are arranged on the main frame, the main frame is rotationally connected with an auxiliary frame, the auxiliary frame is used for being fixed to an installation position, a transverse rotating device is arranged between the main frame and the auxiliary frame, and the transverse rotating device and the first transverse light following probe are both connected with a light following controller. The first transverse light following probe detects the illumination intensity of the left side and the right side of the photovoltaic panel, and if the illumination intensity difference of the two sides exceeds a threshold value, the light following controller controls the transverse rotating device to rotate the main frame towards the side with the large illumination intensity. According to the photovoltaic support light following system, through sensing the light intensity in the east-west direction, when the unbalance deviation of the light intensity in the two directions exceeds a certain value, the light following controller controls the transverse rotating device to start, and the photovoltaic support rotates around the rotating shaft, so that the solar panel is controlled to face the sun; and when the transverse light following probe detects that the illumination intensities in the two directions are balanced, rotation of the transverse rotating device is stopped, and automatic light following of the photovoltaic panel is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic equipment, and in particular to a photovoltaic bracket light tracking system. Background Art

[0002] Solar energy is a renewable energy source. Nowadays, it is generally used for power generation or to provide energy for water heaters. Photovoltaic panels are photovoltaic devices used to obtain solar energy and convert it into electrical energy. When the photovoltaic panels are always facing the sun, it can ensure that they receive sunlight to the maximum extent, thereby improving power generation efficiency. However, most photovoltaic devices are currently fixed in place, and the position and angle of the photovoltaic panels are fixed, but the direction of sunlight is different throughout the day. Therefore, fixed photovoltaic panels cannot obtain light to the maximum extent, which has a great impact on the utilization rate of solar energy. Therefore, photovoltaic panels need to be able to realize automatic light tracking function. Utility Model Content

[0003] The embodiment of the utility model provides a photovoltaic bracket light tracking system to solve the problem of low power generation efficiency caused by the fixed structure of the photovoltaic panel in the prior art.

[0004] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solutions:

[0005] A photovoltaic bracket light-chasing system comprises a main frame for fixing photovoltaic panels, a transverse light-chasing probe is provided on the main frame, the main frame is rotatably connected to a sub-frame, the sub-frame is used to be fixed on an installation position, a transverse rotation device is provided between the main frame and the sub-frame, the transverse rotation device and the transverse light-chasing probe are both connected to a light-chasing controller, the transverse light-chasing probe detects the light intensity on the left and right sides of the photovoltaic panel, if the light intensity difference on the two sides exceeds a threshold value, the light-chasing controller controls the transverse rotation device to rotate the main frame toward the side with greater light intensity.

[0006] Furthermore, the lateral rotation device includes a first linear drive motor, a first push rod and a first connecting rod. The first linear drive motor controls the first push rod to perform linear motion. The two ends of the first connecting rod are respectively rotatably connected to the first push rod and the main frame. When the first push rod feeds, the first push rod pushes the main frame to perform a lateral rotation motion with its rotation connection point with the sub-frame as the origin.

[0007] Furthermore, the linear drive motor is connected to the push rod via a screw rod.

[0008] Furthermore, the main frame includes cross rods arranged crosswise along at least two directions of the photovoltaic panel, and a rotating head is provided on the rear side of the cross rods, and the rotating head is laterally rotated to connect to the sub-frame.

[0009] Furthermore, a second transverse light tracking probe for detecting light intensity on the upper and lower sides of the photovoltaic panel is provided on the main frame, and the rotating head is longitudinally rotated and connected to a cross rod, and the cross rod is connected to a longitudinal rotating device.

[0010] Furthermore, the longitudinal rotation device includes a second linear drive motor, a second push rod and a second connecting rod. The second linear drive motor is fixed on the rotating head and rotates synchronously with the rotating head. The second linear drive motor controls the second push rod to perform linear motion. The two ends of the connecting rod are respectively rotatably connected to the second push rod and the main frame; when the second push rod feeds, the second push rod pushes the main frame to perform longitudinal rotational motion with its rotation connection point with the rotating head as the origin.

[0011] Furthermore, a wire mesh needle is provided on the lateral light tracking probe.

[0012] Furthermore, a first rotation axis is provided at the rotation connection point between the main frame and the auxiliary frame.

[0013] Furthermore, the inclination angle range of the main frame is 30°-60°.

[0014] The utility model embodiment has the following advantages:

[0015] The utility model discloses a photovoltaic bracket light-chasing system whose electrical part is composed of a light-chasing probe and a light-chasing controller, and whose mechanical part is composed of a photovoltaic bracket and a transverse rotating device. The transverse light-chasing probe senses the light intensity in the east-west direction. When the imbalance deviation of the light intensity in the two directions exceeds a certain value, the light-chasing controller will issue a correction instruction to control the transverse rotating device to start, drive the photovoltaic bracket to rotate, and the photovoltaic bracket rotates around the rotation axis, thereby controlling the solar panel to face the sun. When the transverse light-chasing probe detects that the light intensity in the two directions is balanced, the light-chasing controller stops the rotation of the transverse rotating device, thereby realizing automatic light-chasing of the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 A working state diagram of a photovoltaic bracket tracking system provided in Example 1 of the utility model;

[0019] Figure 2 A system schematic diagram of a photovoltaic bracket light tracking system provided in Example 1 of the utility model;

[0020] Figure 3 A working state diagram of a photovoltaic bracket tracking system provided in Example 2 of the utility model;

[0021] Figure 4 This is a system schematic diagram of a photovoltaic bracket tracking system provided in Example 2 of the utility model.

[0022] In the figure:

[0023] 1. Photovoltaic panel; 2. Main frame; 3. Horizontal light-chasing probe; 4. Sub-frame; 5. Horizontal rotation device; 6. First rotation axis; 7. Light-chasing controller; 8. Wire mesh needle; 9. First linear drive motor; 10. First push rod; 11. First connecting rod; 12. Cross rod; 13. Rotating head; 14. Longitudinal light-chasing probe; 15. Longitudinal rotation device; 16. Second linear drive motor; 17. Second push rod; 18. Second connecting rod; 19. Second rotation axis. DETAILED DESCRIPTION

[0024] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part 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.

[0025] Example 1

[0026] like Figure 1-2A photovoltaic support light-chasing system includes a main frame 2 for fixing a photovoltaic panel 1, a transverse light-chasing probe 3 is provided on the main frame 2, the main frame 2 is rotatably connected to a sub-frame 4, the sub-frame 4 is used to be fixed on the installation position, a transverse rotation device 5 is provided between the main frame 2 and the sub-frame 4, and a vertically arranged first rotation axis 6 is provided at the rotation connection point between the main frame 2 and the sub-frame 4. The transverse rotation device 5 and the transverse light-chasing probe 3 are both connected to a light-chasing controller 7, and the light-chasing controller 7 is connected to a photovoltaic controller. The photovoltaic controller collects data from the light-chasing controller 7 and analyzes changes in the data, and forms an optimal photovoltaic panel 1 light-chasing scheme suitable for the current position according to changes in light intensity and time. The transverse light-chasing probe 3 detects the light intensity on the left and right sides of the photovoltaic panel 1. If the light intensity difference on both sides exceeds a threshold value, the light-chasing controller 7 controls the transverse rotation device 5 to rotate the main frame 2 to the side with greater light intensity. During use, the lateral light-chasing probe 3 senses the light intensity in the east-west direction. When the light intensity in the east-west direction is unbalanced, that is, the difference between the two exceeds the threshold, the light-chasing controller 7 will issue an angle correction instruction to control the lateral rotation device 5 to start, control the main frame 2 to rotate, and thus control the solar panel to face the sun. When the lateral light-chasing probe 3 detects that the light intensity in the east-west direction is balanced, that is, the difference between the two is less than or equal to the threshold, the light-chasing controller 7 stops rotating. When the lateral light-chasing probe 3 detects that the light intensity is lower than the minimum light intensity during the day, the system determines that it is night, and the light-chasing controller 7 controls the main frame 2 to rotate and reset to the sunrise direction.

[0027] The horizontal light-chasing probe is provided with a wire mesh needle 8, and the inclination angle range of the wire mesh needle is 60°-90°, which is used to prevent the bird from falling on the light-chasing probe, and further prevent the bird's droppings from blocking the light-chasing probe.

[0028] The lateral rotation device 5 includes a first linear drive motor 9, a first push rod 10 and a first connecting rod 11. The first linear drive motor 9 controls the first push rod 10 to perform linear motion. The two ends of the first connecting rod 11 are rotatably connected to the first push rod 10 and the main frame 2. The first push rod 10 is used to balance and adjust the force direction of the main frame 2 during the push and pull process of the first push rod 10. When the first push rod 10 is fed, the first push rod 10 pushes the main frame 2 to perform a lateral rotation motion with its rotation connection point with the sub-frame 4 as the origin. Specifically, the first linear drive motor 9 is connected to the first push rod 10 through a screw rod, or the first linear drive motor 9 realizes the linear transmission of the first push rod 10 through the cooperation of a gear and a rack.

[0029] The main frame 2 includes a cross bar 12 arranged crosswise along at least two directions of the photovoltaic panel 1, preferably two bars in the cross bar 12 are arranged vertically or diagonally, and a rotating head 13 is arranged at the rear side of the cross bar 12, and the rotating head 13 is horizontally rotated to connect the sub-frame 4. The photovoltaic panel 1 is installed on the cross bar 12, and the cross bar 12 is tilted to connect the rotating head 13, so that the tilt angle range of the main frame 2 is 30°-60°, so that the pitch degree of the photovoltaic panel 1 is directly facing the sun.

[0030] Example 2

[0031] However, since the photovoltaic panels 1 in different regions and heights have different pitch degrees, the main frame 2 is designed as a light tracking bracket with adjustable pitch angle. Figure 3-4 The main frame 2 is provided with a longitudinal tracking probe 14 for detecting the light intensity on the upper and lower sides of the photovoltaic panel 1. The longitudinal tracking probe 14 is preferably arranged at the center of the photovoltaic panel 1. The rotating head 13 is longitudinally rotated and connected to the cross rod 12. A second rotating axis 19 is transversely arranged between the rotating head 13 and the cross rod 12. The rotating head 13 is provided with a longitudinal rotating device 15. The push-pull end of the longitudinal rotating device 15 is rotatably connected to the cross rod 12.

[0032] The longitudinal rotation device 15 includes a second linear drive motor 16, a second push rod 17 and a second connecting rod 18. The second linear drive motor 16 is fixed on the rotating head 13 and rotates synchronously with the rotating head 13, so that the plane where the second connecting rod 18 is located is always perpendicular to the photovoltaic panel 1. The second linear drive motor 16 controls the second push rod 17 to make linear motion, and the two ends of the connecting rod are rotatably connected to the second push rod 17 and the main frame 2; when the second push rod 17 is fed, the second push rod 17 pushes the main frame 2 to make a longitudinal rotation movement with its rotation connection point with the rotating head 13 as the origin.

[0033] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A photovoltaic bracket tracking system, characterized in that: It includes a main frame for fixing photovoltaic panels, the main frame is provided with a transverse light-chasing probe, the main frame is rotatably connected to a sub-frame, the sub-frame is used to be fixed on the installation position, a transverse rotation device is provided between the main frame and the sub-frame, the transverse rotation device and the transverse light-chasing probe are both connected to a light-chasing controller, the transverse light-chasing probe detects the light intensity on the left and right sides of the photovoltaic panel, if the light intensity difference on both sides exceeds a threshold value, the light-chasing controller controls the transverse rotation device to rotate the main frame to the side with greater light intensity.

2. A photovoltaic support light tracking system according to claim 1, characterized in that: The lateral rotation device comprises a first linear drive motor, a first push rod and a first connecting rod, wherein the first linear drive motor controls the first push rod to perform linear motion, and two ends of the first connecting rod are rotatably connected to the first push rod and the main frame respectively; When the first push rod is fed, the first push rod pushes the main frame to perform a lateral rotation movement with the rotation connection point between the main frame and the sub-frame as the origin.

3. A photovoltaic support light tracking system according to claim 2, characterized in that: The linear drive motor is connected to the push rod through a screw rod.

4. A photovoltaic support light tracking system according to claim 1, characterized in that: The main frame comprises cross rods arranged crosswise along at least two directions of the photovoltaic panel, a rotating head is arranged at the rear side of the cross rods, and the rotating head is rotatably connected to the sub-frame in a transverse direction.

5. A photovoltaic support light tracking system according to claim 4, characterized in that: The main frame is provided with a longitudinal light-tracking probe for detecting the light intensity on the upper and lower sides of the photovoltaic panel. The rotating head is longitudinally rotated and connected to the cross rod. The rotating head is provided with a longitudinal rotating device. The push-pull end of the longitudinal rotating device is rotatably connected to the cross rod.

6. A photovoltaic support light tracking system according to claim 5, characterized in that: The longitudinal rotation device includes a second linear drive motor, a second push rod and a second connecting rod. The second linear drive motor is fixed to the rotating head and rotates synchronously with the rotating head. The second linear drive motor controls the second push rod to perform linear motion. The two ends of the connecting rod are rotatably connected to the second push rod and the main frame. When the second push rod is fed, the second push rod pushes the main frame to perform longitudinal rotational motion with the rotational connection point between the main frame and the rotary head as the origin.

7. A photovoltaic support light tracking system according to claim 1, characterized in that: The transverse light-chasing probe is provided with a wire mesh needle.

8. A photovoltaic support light tracking system according to claim 1, characterized in that: A first rotating shaft is provided at the rotating connection point between the main frame and the auxiliary frame.

9. A photovoltaic support light tracking system according to claim 1, characterized in that: The inclination angle range of the main frame is 30°-60°.

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