A wind-resistant variable angle photovoltaic power generation device

Abstract

This invention relates to the field of solar energy technology, and particularly to a wind-resistant variable-angle photovoltaic power generation device. It includes a base, a support rod fixedly connected to the base, a support frame rotatably connected to the support rod, a first electric roller rotatably connected to the base, an electric telescopic frame mounted on the base, a solar panel mounted on the support frame, and an electric push rod mounted on the base. The telescopic part of the electric push rod is fixedly connected to a first baffle with a first hole via a fixed frame. A second baffle with a second hole is fixedly connected to the support frame. This invention adjusts the alignment and misalignment of the second hole with the corresponding first hole to change the ventilation and wind-blocking effects of the first and second baffles. When wind impacts the back of the solar panel, it shields the back of the solar panel, ensuring its wind resistance and thus improving the stability of the solar panel.

Description

Technical Field

[0001] This invention relates to the field of solar energy technology, and in particular to a wind-resistant variable-angle photovoltaic power generation device. Background Technology

[0002] Photovoltaic power generation is a clean and renewable energy utilization method. Photovoltaic power generation devices are usually installed in open outdoor areas to fully receive sunlight. However, due to the complex outdoor installation environment, photovoltaic power generation devices are constantly affected by natural wind. Wind impact not only puts pressure on the front of the photovoltaic panel, but the eddies and negative pressure effects on the back are more likely to cause the photovoltaic panel to vibrate, deform, or even detach from the mounting frame, seriously affecting power generation efficiency and equipment safety. Existing photovoltaic power generation devices mostly adopt the method of increasing structural strength in wind resistance design. However, simply increasing structural strength will lead to increased costs and cannot adapt to changes in wind direction. When the wind blows, the back of the photovoltaic panel will still be exposed to the airflow. The weak wind resistance of the back of the photovoltaic panel will limit the overall wind resistance performance of the photovoltaic panel, making it difficult to balance normal power generation and stability under wind from all directions. Summary of the Invention

[0003] In order to overcome the shortcomings mentioned in the background art, the present invention provides a wind-resistant variable angle photovoltaic power generation device.

[0004] Technical Solution: A wind-resistant variable-angle photovoltaic power generation device includes a base, on which symmetrically distributed support rods are fixedly connected, and the support rods are rotatably connected to support frames. A first electric roller is rotatably connected to the base, and symmetrically distributed electric telescopic frames are installed on the base. The first electric roller drives the symmetrically distributed electric telescopic frames to rotate, and the electric telescopic frames drive the corresponding support frames to swing. Solar panels are commonly mounted on the symmetrically distributed support frames. An electric push rod is installed on the base, and a fixed frame is fixedly connected to the telescopic portion of the electric push rod. A first baffle is fixedly connected to the fixed frame. The first baffle has a plurality of spaced-apart first holes. A second baffle is fixedly connected to the symmetrically distributed support frames. The second baffle has the same number of second holes as the first holes, and the second holes connect to the corresponding first holes.

[0005] Furthermore, it is particularly preferred that the base is provided with a third baffle, the second baffle is provided with a plurality of flow holes spaced apart, the second baffle is provided with a plurality of blocking parts spaced apart, and the third baffle is provided with a plurality of grooves spaced apart, all of the grooves corresponding one-to-one with all of the blocking parts, and the blocking parts are used to block the corresponding grooves.

[0006] Furthermore, it is particularly preferred that the first baffle, the second baffle, and the third baffle are all arc-shaped to guide the airflow.

[0007] Furthermore, it is particularly preferred that the base is equipped with a gearbox, the first electric roller is used to drive the gearbox, the output shaft of the gearbox is fixedly connected to a symmetrically distributed first rotating wheel and a symmetrically distributed third rotating wheel, the base is rotatably connected to a symmetrically distributed second rotating wheel and a symmetrically distributed fourth rotating wheel, and symmetrically distributed weights are slidably connected inside the base, the first rotating wheel and the adjacent third rotating wheel are both fixedly connected to the adjacent weights by a first connecting rope, the first connecting rope of the first rotating wheel passes around the second rotating wheel, and the first connecting rope of the third rotating wheel passes around the fourth rotating wheel.

[0008] Furthermore, it is particularly preferred that the first connecting ropes on the first rotating wheel and the third rotating wheel are wound in opposite directions.

[0009] Furthermore, it is particularly preferred that the base is fixedly connected to a support seat, the support seat is equipped with a first connector, the fixing frame is equipped with a second connector, both the first connector and the second connector are fixedly connected to the solar panel, and the symmetrically distributed support frames are all in contact with the solar panel for supporting the solar panel.

[0010] Furthermore, it is particularly preferred that the third baffle is slidably connected to the base, and an elastic element is provided between the third baffle and the base, the third baffle being used to compress the elastic element.

[0011] Furthermore, it is particularly preferred that the base is fixedly connected to a pressure sensor, which is fixedly connected to the elastic element.

[0012] Furthermore, it is particularly preferred that the first baffle is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to a second electric roller, the second electric roller is wound with a covering cloth passing through the rotating shaft, the side of the solar panel away from the first baffle is rotatably connected to a third electric roller, the third electric roller is fixedly connected to symmetrically distributed fifth rotating wheels, the fifth rotating wheels are wound with a second connecting rope, and the second connecting rope of the fifth rotating wheel is fixedly connected to the covering cloth.

[0013] Furthermore, it is particularly preferred that a cleaning strip is fixed to one end of the covering cloth near the third electric roller, the cleaning strip being used to clean the solar panel.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: By adjusting the alignment and misalignment of the second hole with the corresponding first hole, the ventilation and wind-blocking effects of the first and second baffles are changed. When wind impacts the back of the solar panel, the back of the solar panel is shielded, ensuring the wind resistance of the back of the solar panel and thus improving the stability of the solar panel. By adjusting the position of the weight, the center of gravity of the device is adjusted according to the airflow to enhance the stability of the device. The third baffle buffers and relieves external airflow, maintaining the stability of the solar panel when the external airflow does not affect its use. When the external airflow affects the use of the solar panel, the solar panel is laid flat, reducing the probability of deformation and displacement of the back of the solar panel due to wind impact, thus improving the stability of the solar panel during use. When the external environment affects the use of the solar panel, the solar panel is covered by a covering cloth, reducing the probability of the solar panel being scratched by impurities and ensuring the normal use of the solar panel. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the base and support rod of the present invention; Figure 3 This is a three-dimensional structural diagram of the first and second baffles of the present invention; Figure 4 This is a three-dimensional structural schematic diagram of the transmission of the present invention; Figure 5 This is a three-dimensional structural diagram of the first connector and the second connector of the present invention; Figure 6 This is a three-dimensional structural diagram of the weight block of the present invention; Figure 7 This is a three-dimensional structural diagram of the covering cloth of the present invention.

[0016] In the diagram: 1. Base, 2. Support rod, 3. Support frame, 4. First electric roller, 5. Electric telescopic frame, 8. Solar panel, 9. Electric push rod, 10. Fixing frame, 11. First baffle, 1101. First hole, 12. Second baffle, 1201. Second hole, 1202. Flow hole, 1203. Sealing part, 13. Third baffle, 1301. Groove, 14. Gearbox, 1401. First rotating wheel, 1402. Second rotating wheel, 1403. Third rotating wheel, 1404. Fourth rotating wheel, 15. Weight, 16. Support seat, 17. First connector, 18. Second connector, 19. Elastic element, 20. Pressure sensor, 21. Rotating shaft, 22. Second electric roller, 23. Covering cloth, 24. Third electric roller, 2401. Fifth rotating wheel, 25. Cleaning strip. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0018] Example 1

[0019] Existing photovoltaic power generation devices often adopt the method of increasing structural strength in wind resistance design. However, simply increasing structural strength will lead to increased costs and cannot adapt to changes in wind direction. When the wind blows, the back of the photovoltaic panel will still be exposed to the airflow. The wind resistance of the back of the photovoltaic panel is weak, which will limit the overall wind resistance performance of the photovoltaic panel and make it difficult to balance normal power generation and stability when the wind comes from all directions.

[0020] A wind-resistant variable-angle photovoltaic power generation device, with reference to Figures 1-5 The system includes a base 1, a control terminal (not shown in the figure) mounted on the base 1, a wind monitoring device (not shown in the figure) mounted on the base 1, two symmetrically distributed support rods 2 fixedly connected to the base 1, support rods 2 rotatably connected to support frames 3, a first electric roller 4 electrically connected to the control terminal rotatably connected to the base 1, and symmetrically distributed electric telescopic frames 5, each electrically connected to the control terminal, mounted on the base 1. The first electric roller 4 drives the symmetrically distributed electric telescopic frames 5 to rotate, and the electric telescopic frames 5 drive the corresponding support frames 3 to swing, so that the support frames 3 rotate around the rotatable connection between themselves and the support rods 2. A solar panel 8 is mounted on both support frames 3. In this embodiment, the support frames 3 are fixedly connected to the solar panel 8. An electric push rod 9 electrically connected to the control terminal is mounted on the base 1. A fixed frame 10 is fixedly connected to the telescopic part of the electric push rod 9. A first baffle 11 is fixedly connected to the fixed frame 10. A plurality of first holes 1101 are provided at intervals. A second baffle 12 is fixedly connected to a symmetrically distributed support frame 3. The second baffle 12 is provided with the same number of second holes 1201 as the first holes 1101. Initially, the second holes 1201 are connected to the corresponding first holes 1101. When the external airflow comes from the right, the wind monitoring device detects the change in airflow and starts the first electric roller 4 through the control terminal. The first electric roller 4 drives the support frame 3 through the electric telescopic frame 5, so that the support frame 3 rotates around the rotational connection between it and the support rod 2. The support frame 3 drives the second baffle 12 to move, so that the second holes 1201 are misaligned with the corresponding first holes 1101. The second baffle 12 blocks the first holes 1101 and blocks the back of the solar panel 8, reducing the wind resistance of the back of the solar panel 8, making the solar panel 8 adapt to the wind resistance performance in all directions, and improving the stability of the solar panel 8.

[0021] Reference Figures 3-5 The base 1 is provided with a third baffle 13. In this embodiment, the base 1 is fixedly connected to the third baffle 13. The first baffle 11, the second baffle 12, and the third baffle 13 are all arc-shaped to guide the airflow, directing the airflow to the area above and below the first baffle 11, the second baffle 12, and the third baffle 13, reducing the airflow pressure on the first baffle 11, the second baffle 12, and the third baffle 13, and improving the wind resistance of the device. The second baffle 12 is provided with a plurality of spaced-apart flow holes 1202. The first holes 1101 are staggered with the corresponding flow holes 1202. The second baffle 12 is used to guide the airflow through all the first holes 1101. The first hole 1101 is blocked, the second baffle 12 is provided with spaced-out sealing parts 1203, and the third baffle 13 is provided with a number of spaced-out grooves 1301. All grooves 1301 correspond one-to-one with all sealing parts 1203. When the external airflow comes from the right side, as the support frame 3 drives the solar panel 8 to rotate to a horizontal state, the support frame 3 drives the second baffle 12 to rotate, and the sealing parts 1203 seal the corresponding grooves 1301, thus blocking all the first holes 1101 and the back of the solar panel 8, reducing the probability that the airflow will cause the solar panel 8 to deform or even detach from the support frame 3.

[0022] Reference Figures 4-6 A gearbox 14 is mounted on the base 1. A first electric roller 4 drives the gearbox 14. The output shaft of the gearbox 14 is fixedly connected to two first rotating wheels 1401 and two third rotating wheels 1403, which are symmetrically distributed front to back. The base 1 is rotatably connected to two second rotating wheels 1402 and two fourth rotating wheels 1404, which are symmetrically distributed front to back. Two weights 15 are slidably connected inside the base 1. The first rotating wheels 1401 and the adjacent third rotating wheels 1403 are both fixedly connected to the adjacent weights 15 by a first connecting rope. The first connecting rope of the first rotating wheel 1401 passes around the second rotating wheel 1402. The first connecting rope of the third rotating wheel 1403 passes around the fourth rotating wheel 1404. When the external airflow comes from the right, during the rotation of the first electric roller 4, the first electric roller 4 drives the first rotating wheel 1401 and the third rotating wheel 1403 through the gearbox 14. The winding directions of the first connecting ropes on the first rotating wheel 1401 and the third rotating wheel 1403 are opposite. The first rotating wheel 1401 winds up the adjacent first connecting rope, and the third rotating wheel 1403 releases the adjacent first connecting rope, causing the weight 15 to move to the right, thereby causing the center of gravity of the device to move to the right. The position of the center of gravity of the device is adjusted according to the direction of the airflow to enhance the stability of the device.

[0023] The specific workflow is as follows:

[0024] When the operator needs to use this device for photovoltaic power generation, if the external airflow comes from the right side of the solar panel 8, the wind monitoring equipment detects the change in airflow. The wind monitoring equipment activates the first electric roller 4 through the control terminal. The first electric roller 4 drives the support frame 3 to swing through the electric telescopic frame 5 (the electric telescopic frame 5 is activated through the control terminal to move the support frame 3), so that the support frame 3 rotates around the rotational connection between it and the support rod 2. According to the size of the airflow, the support frame 3 drives the solar panel 8 to rotate, adjusting the angle between the solar panel 8 and the horizontal plane to balance the normal use and stability of the solar panel 8.

[0025] As the support frame 3 drives the solar panel 8 to rotate, the support frame 3 drives the second baffle 12 to move, causing the second hole 1201 to be misaligned with the corresponding first hole 1101. The second baffle 12 blocks the first hole 1101, thus shielding the back of the solar panel 8 and ensuring the wind resistance of the back of the solar panel 8, thereby improving the stability of the solar panel 8.

[0026] When the support frame 3 drives the solar panel 8 to rotate to a horizontal position, the second baffle 12 drives the sealing part 1203 to rotate to the corresponding groove 1301 for sealing. The second baffle 12 and the third baffle 13 together shield the back of the solar panel 8, reducing the probability of the solar panel 8 deforming due to airflow or even detaching from the support frame 3, thus ensuring the stability of the solar panel 8.

[0027] During the rotation of the first electric roller 4, the first electric roller 4 drives the first rotating wheel 1401 and the third rotating wheel 1403 through the gearbox 14. The first rotating wheel 1401 winds up the adjacent first connecting rope, and the third rotating wheel 1403 releases the adjacent first connecting rope. The second rotating wheel 1402 and the fourth rotating wheel 1404 guide the corresponding first connecting rope, causing the weight 15 to move to the right, thereby causing the center of gravity of the device to move to the right. The position of the center of gravity of the device is adjusted according to the direction of airflow to enhance the stability of the device.

[0028] When the external airflow no longer comes from the right side of the solar panel 8, the first electric roller 4 reverses and resets. The first electric roller 4 drives the first rotating wheel 1401 and the third rotating wheel 1403 to reverse. The first rotating wheel 1401 releases the adjacent first connecting rope, and the third rotating wheel 1403 winds up the adjacent first connecting rope. The weight 15 moves to the left and resets. The first electric roller 4 drives the support frame 3 to reset through the electric telescopic frame 5. The solar panel 8 tilts again and is used normally. The support frame 3 drives the second baffle 12 to reset, so that the second hole 1201 connects to the corresponding first hole 1101. The first electric roller 4 and the electric telescopic frame 5 are shut off through the control terminal.

[0029] Example 2

[0030] Based on Example 1, referring to Figure 2 , Figure 4 and Figure 5 A base 1 is fixedly connected to a support 16, and a first connector 17 is mounted on the support 16. The first connector 17 consists of two mounting brackets that are hinged to each other. The two mounting brackets of the first connector 17 are fixedly connected to the solar panel 8 and the support 16, respectively. A fixed frame 10 is mounted with a second connector 18, which also consists of two mounting brackets. The two mounting brackets of the second connector 18 are fixedly connected to the solar panel 8 and the fixed frame 10, respectively. The two mounting brackets of the second connector 18 are rotatable and slidably connected, providing sliding allowance for the mounting brackets on the solar panel 8 during rotation relative to the mounting brackets on the fixed frame 10. The first connector 17 and the second connector 18... Both are rotatably connected to the solar panel 8. In the above embodiment, the support frame 3 is fixedly connected to the solar panel 8. In this embodiment, both support frames 3 are in contact with the solar panel 8 and are used to support the solar panel 8. In the above embodiment, the solar panel 8 moves with the support frame 3. In this embodiment, the solar panel 8 moves independently. In the above embodiment, the base 1 is fixedly connected to the third baffle 13. In this embodiment, the third baffle 13 is slidably connected to the base 1. An elastic element 19 is provided between the third baffle 13 and the base 1. The elastic element 19 is a compression spring. The third baffle 13 is used to compress the elastic element 19. The base 1 is fixedly connected to a pressure sensor 20 that is electrically connected to the control terminal. Force sensor 20 is fixedly connected to elastic element 19. When external airflow comes from the right, support frame 3 rotates according to the above embodiment. Support frame 3 drives second baffle 12 to move, and sealing part 1203 seals the corresponding groove 1301. Second hole 1201 is misaligned with corresponding first hole 1101. Solar panel 8 remains tilted and is blocked by first baffle 11 and second baffle 12. Solar panel 8 remains stationary, ensuring the stability of solar panel 8. If external airflow intensifies, external airflow compresses third baffle 13 to move. Elastic element 19 buffers third baffle 13 until third baffle 13 moves to the point that groove 1301 is misaligned with adjacent sealing part 1203, and airflow... The airflow is depressurized by passing through the groove 1301, and the squeezing force generated by the elastic element 19 on the pressure sensor 20 reaches the threshold. The pressure sensor 20 activates the electric push rod 9 through the control terminal. The telescopic part of the electric push rod 9 drives the second connector 18 to move through the fixing frame 10. The second connector 18 drives the solar panel 8 to move, and the solar panel 8 swings to a horizontal state. This maintains the stability of the solar panel 8 when the external airflow does not affect its normal use. When the external airflow affects the normal use of the solar panel 8, the solar panel 8 is laid flat, reducing the probability of deformation and displacement of the back of the solar panel 8 due to wind impact, and improving the stability of the solar panel 8 during use.

[0031] Example 3

[0032] Based on Example 2, referring to Figures 1-3 and Figure 7 A first baffle 11 is fixedly connected to a rotating shaft 21. The rotating shaft 21 is rotatably connected to a second electric roller 22 electrically connected to a control terminal. A covering cloth 23 extending out of the rotating shaft 21 is wound around the second electric roller 22. A third electric roller 24 electrically connected to the control terminal is rotatably connected to the left side of the solar panel 8. Two fifth rotating wheels 2401 symmetrically distributed front and rear are fixedly connected to the third electric roller 24. A second connecting rope is wound around the fifth rotating wheel 2401. The second connecting rope of the fifth rotating wheel 2401 is fixedly connected to the covering cloth 23. A cleaning strip 25 is fixedly connected to the left end of the covering cloth 23. The cleaning strip 25 is used to clean the solar panel 8. When the external environment affects the normal operation of the solar panel 8... When the solar panel 8 rotates to a horizontal position, the control terminal controls the second electric roller 22 and the third electric roller 24 to open. The third electric roller 24 pulls the cover cloth 23 to move through the second connecting rope. The cover cloth 23 drives the cleaning strip 25 to move. The cleaning strip 25 cleans the surface of the solar panel 8. The cover cloth 23 unfolds and covers the solar panel 8, reducing the probability of the solar panel 8 being scratched by impurities (such as branches blown by airflow and sand), and ensuring the normal use of the solar panel 8. When the external environment returns to normal, the second electric roller 22 and the third electric roller 24 reverse and reset. The second electric roller 22 rolls up the cover cloth 23, and the third electric roller 24 releases the second connecting rope.

[0033] The above are merely embodiments of the present invention and are not intended to limit the invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A wind-resistant variable-angle photovoltaic power generation device, comprising a base (1), wherein the base (1) is fixedly connected to symmetrically distributed support rods (2), and the support rods (2) are rotatably connected to a support frame (3), characterized in that, The base (1) is rotatably connected to a first electric roller (4). The base (1) is equipped with symmetrically distributed electric telescopic frames (5). The first electric roller (4) is used to drive the symmetrically distributed electric telescopic frames (5) to rotate. The electric telescopic frames (5) are used to drive the corresponding support frames (3) to swing. The symmetrically distributed support frames (3) are all provided with solar panels (8). The base (1) is equipped with an electric push rod (9). The telescopic part of the electric push rod (9) is fixedly connected to a fixed frame (10). The fixed frame (10) is fixedly connected to a first baffle (11). The first baffle (11) is provided with a plurality of first holes (1101) spaced apart. The symmetrically distributed support frames (3) are all fixedly connected to a second baffle (12). The second baffle (12) is provided with the same number of second holes (1201) as the first holes (1101). The second holes (1201) are used to connect to the corresponding first holes (1101).

2. The wind-resistant variable-angle photovoltaic power generation device according to claim 1, characterized in that, The base (1) is provided with a third baffle (13), the second baffle (12) is provided with a plurality of flow holes (1202) spaced apart, the second baffle (12) is provided with a blocking part (1203) spaced apart, and the third baffle (13) is provided with a plurality of grooves (1301) spaced apart. All the grooves (1301) correspond one-to-one with all the blocking parts (1203), and the blocking part (1203) is used to block the corresponding groove (1301).

3. The wind-resistant variable-angle photovoltaic power generation device according to claim 2, characterized in that, The first baffle (11), the second baffle (12) and the third baffle (13) are all arc-shaped to guide the airflow.

4. A wind-resistant variable-angle photovoltaic power generation device according to claim 2, characterized in that, The base (1) is equipped with a gearbox (14), and the first electric roller (4) is used to drive the gearbox (14). The output shaft of the gearbox (14) is fixedly connected to a symmetrically distributed first rotating wheel (1401) and a symmetrically distributed third rotating wheel (1403). The base (1) is rotatably connected to a symmetrically distributed second rotating wheel (1402) and a symmetrically distributed fourth rotating wheel (1404). A symmetrically distributed weight (15) is slidably connected inside the base (1). The first rotating wheel (1401) and the adjacent third rotating wheel (1403) are both fixedly connected to the adjacent weight (15) through a first connecting rope. The first connecting rope of the first rotating wheel (1401) passes around the second rotating wheel (1402), and the first connecting rope of the third rotating wheel (1403) passes around the fourth rotating wheel (1404).

5. A wind-resistant variable-angle photovoltaic power generation device according to claim 4, characterized in that, The first connecting ropes on the first rotating wheel (1401) and the third rotating wheel (1403) are wound in opposite directions.

6. A wind-resistant variable-angle photovoltaic power generation device according to claim 1, characterized in that, The base (1) is fixedly connected to a support seat (16), the support seat (16) is equipped with a first connector (17), the fixing frame (10) is equipped with a second connector (18), the first connector (17) and the second connector (18) are both fixedly connected to the solar panel (8), and the symmetrically distributed support frames (3) are all in contact with the solar panel (8) for supporting the solar panel (8).

7. A wind-resistant variable-angle photovoltaic power generation device according to claim 6, characterized in that, The third baffle (13) is slidably connected to the base (1), and an elastic element (19) is provided between the third baffle (13) and the base (1). The third baffle (13) is used to squeeze the elastic element (19).

8. A wind-resistant variable-angle photovoltaic power generation device according to claim 7, characterized in that, The base (1) is fixedly connected to a pressure sensor (20), and the pressure sensor (20) is fixedly connected to the elastic element (19).

9. A wind-resistant variable-angle photovoltaic power generation device according to claim 1, characterized in that, The first baffle (11) is fixedly connected to a rotating shaft (21), the rotating shaft (21) is rotatably connected to a second electric roller (22), the second electric roller (22) is wound with a covering cloth (23) that passes through the rotating shaft (21), the solar panel (8) is rotatably connected to a third electric roller (24) on the side away from the first baffle (11), the third electric roller (24) is fixedly connected to a symmetrically distributed fifth rotating wheel (2401), the fifth rotating wheel (2401) is wound with a second connecting rope, and the second connecting rope of the fifth rotating wheel (2401) is fixedly connected to the covering cloth (23).

10. A wind-resistant variable-angle photovoltaic power generation device according to claim 9, characterized in that, A cleaning strip (25) is fixed to one end of the covering cloth (23) near the third electric roller (24), and the cleaning strip (25) is used to clean the solar panel (8).

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