Photovoltaic power generation device

Abstract

The invention discloses a photovoltaic power generation device, and relates to the technical field of photovoltaic power generation, and the photovoltaic power generation device comprises a supporting frame, a connecting frame is fixedly installed at the top of the supporting frame, a fixing frame is fixedly installed at the top of the connecting frame, a photovoltaic panel is arranged in the fixing frame, and a limiting block is rotatably installed on the surface of the fixing frame. A driving motor is fixedly mounted on the surface of the supporting frame, a connecting rod is fixedly mounted at the output end of the driving motor, a protective cover is rotatably mounted on the surface of the connecting rod, a pulley yoke is fixedly mounted on the surface of the fixing frame, a short plate is fixedly mounted on the surface of the protective cover, and a sliding rail is fixedly mounted on the surface of the fixing frame; elastic telescopic rods are slidably installed on the inner walls of the sliding rails, the photovoltaic panel is covered by rotating the protection cover upwards, and the situation that the photovoltaic panel is covered with snow and water generated in rainy and snowy weather, and consequently the service life of the photovoltaic panel is shortened is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and specifically relates to a photovoltaic power generation device. Background Art

[0002] There are also certain potential safety hazards during the installation and maintenance of photovoltaic panels. For example, sundries such as dust, bird droppings, leaves, and hail will cover the photovoltaic panels, blocking the penetration of light and reducing the power generation efficiency. At the same time, these problems may also cause the local temperature of the photovoltaic panels to be too high, accelerating aging.

[0003] The patent with the patent announcement number CN221948108U relates to the technical field of the protection structure of a photovoltaic power generation device, and involves: a protection structure of a photovoltaic power generation device, including a protection box, and further including a flip cover assembly and a remote controller; a flip cover assembly is arranged at the upper end of the protection box; a remote controller is arranged on one side of the protection box, and the outer shell of the remote controller is fixedly connected to the outer shell of the protection box. In this patent, the telescopic rod at the output end of the cylinder extends to push the flip cover connection block and the flip cover assembly it is connected to rotate around the axis connected by the connecting piece, so that the light-irradiating surface of the photovoltaic panel of the flip cover assembly faces downward and covers the photovoltaic panel on the shell. Relying on the protection board to protect the two photovoltaic panels can effectively improve the protection performance to solve the problems of the existing photovoltaic power generation device, because its photovoltaic panel is easily damaged in a harsh environment, resulting in a decrease in the life of the photovoltaic panel, high maintenance costs, great protection difficulty, and untimely operation.

[0004] In the above patent, the telescopic rod at the output end of the cylinder extends to push the flip cover connection block and the flip cover assembly it is connected to rotate around the axis connected by the connecting piece, so that the light-irradiating surface of the photovoltaic panel of the flip cover assembly faces downward and covers the photovoltaic panel on the shell. Relying on the protection board to protect the two photovoltaic panels can effectively improve the protection performance to solve the problems of the existing photovoltaic power generation device, because its photovoltaic panel is easily damaged in a harsh environment, resulting in a decrease in the life of the photovoltaic panel, high maintenance costs, great protection difficulty, and untimely operation. However, it is difficult to effectively handle the impurities adhering to the photovoltaic panel, which may cause a decrease in power generation efficiency over a long time. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a photovoltaic power generation device to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized by the following technical solutions: A photovoltaic power generation device, comprising: a support frame, a connection frame is fixedly installed on the top of the support frame, a fixed frame is fixedly installed on the top of the connection frame, a photovoltaic panel is arranged inside the fixed frame, a limiting block is rotatably installed on the surface of the fixed frame, a driving motor is fixedly installed on the surface of the support frame, a connecting rod is fixedly installed at the output end of the driving motor, a protective cover is rotatably installed on the surface of the connecting rod, a pulley frame is fixedly installed on the surface of the fixed frame, a short plate is fixedly installed on the surface of the protective cover, a slide rail is fixedly installed on the surface of the fixed frame, an elastic telescopic rod is slidably installed inside the slide rail, a cleaning brush is fixedly installed at the free end of the elastic telescopic rod, a rotating block is rotatably installed at the free end of the elastic telescopic rod, a fixed block is fixedly installed at the free end of the elastic telescopic rod, a connection block is fixedly installed on the surface of the slide rail, and an arc-shaped block is fixedly installed on the top of the connection block. By starting the driving motor to move towards the direction close to the limiting block, the output end of the driving motor moving towards the direction close to the limiting block will drive the connecting rod to move towards the direction close to the limiting block.

[0007] According to the above technical solution, a first spring is arranged between the slide rail and the elastic telescopic rod, and the elastic telescopic rod is driven to reset by the first spring, and the cleaning brush is in contact with the surface of the photovoltaic panel.

[0008] According to the above technical solution, a support device for supporting the equipment and an anti-shaking device for preventing the photovoltaic panel from shaking are arranged on the protective cover. The support device includes a sliding plate, a pulling plate, a rotating plate, a connecting pull rod and a fixing plate. By the protective cover moving towards the direction close to the limiting block, the sliding plate is driven to move towards the direction close to the limiting block. During the process of the sliding plate moving towards the direction close to the limiting block, it will contact the pulley frame. The sliding plate is slidably installed on the inner wall of the protective cover. The pulling plate is fixedly installed on the surface of the sliding plate. The rotating plate is rotatably installed on the inner wall of the protective cover. The connecting pull rod is fixedly installed on the surface of the pulling plate. The fixing plate is fixedly installed on the surface of the rotating plate.

[0009] According to the above technical solution, a rotating plate is rotatably installed on the surface of the sliding plate, a sliding seat is slidably installed on the inner wall of the protective cover, one end of the rotating plate away from the sliding plate is rotatably installed inside the sliding seat, a support plate is slidably installed on the surface of the connection frame. When the sliding plate moves towards the direction close to the inner wall of the protective cover, it will drive the rotating plate to rotate. The rotation of the rotating plate will drive the sliding seat to move upward. The upward movement of the sliding seat will drive the support plate to move upward.

[0010] According to the above technical solution, a second spring is arranged between the sliding plate and the protective cover, and the sliding plate is driven to reset by the second spring. A first torsion spring is arranged between the rotating plate and the protective cover, and the rotating plate is driven to reset by the first torsion spring. A third spring is arranged between the protective cover and the sliding seat, and the sliding seat is driven to reset by the third spring. A fourth spring is arranged between the connecting frame and the support plate, and the support plate is driven to reset by the fourth spring.

[0011] According to the above technical solution, the anti-shake device includes an L-shaped plate, a trapezoidal block and a limiting plate. When the support plate moves upward, the L-shaped plate is driven to move upward. When the L-shaped plate moves upward, it will limit the photovoltaic panel to prevent the sudden opening of the limiting block, which may cause damage to the photovoltaic panel. At the same time, when the L-shaped plate moves upward, it will push the trapezoidal block to move towards the limiting block. The L-shaped plate is fixedly installed on the surface of the support plate. The trapezoidal block is slidably installed on the surface of the photovoltaic panel. The limiting plate is fixedly installed on the surface of the trapezoidal block.

[0012] According to the above technical solution, a groove is formed in the inner wall of the support plate. A square plate is fixedly installed on the inner wall of the groove. A trapezoidal sliding plate is slidably installed at the bottom of the fixed frame. A U-shaped rod is fixedly installed on the surface of the trapezoidal sliding plate. One end of the U-shaped rod away from the trapezoidal sliding plate is fixedly installed with a push plate. When the U-shaped rod moves away from the square plate, it will drive the push plate to move towards the photovoltaic panel.

[0013] According to the above technical solution, a fifth spring is arranged between the trapezoidal block and the photovoltaic panel, and the trapezoidal block is driven to reset by the fifth spring. A sixth spring is arranged between the fixed frame and the trapezoidal sliding plate, and the trapezoidal sliding plate is driven to reset by the sixth spring.

[0014] The present invention provides a photovoltaic power generation device, which has the following beneficial effects: (1) In this invention, the pulley frame will cause the protective cover to rotate upward, and the photovoltaic panel is covered by the upward rotation of the protective cover, preventing snow and water generated in rainy and snowy weather from covering the photovoltaic panel, which may lead to a decrease in the service life of the photovoltaic panel. At the same time, the arc-shaped block will push the rotating block upward, and the impurities adhering to the cleaning brush will be shaken off by the up and down movement of the rotating block, preventing it from affecting subsequent cleaning.

[0015] (2) In this invention, the photovoltaic panel is completely covered by the downward rotation of the rotating plate, improving the protection effect. At the same time, when the sliding plate moves towards the inner wall of the protective cover, it will drive the rotating plate to rotate. The rotation of the rotating plate will drive the sliding seat to move upward. The upward movement of the sliding seat will drive the support plate to move upward. By the upward movement of the support plate, the bottom of the fixed frame is supported, improving the stability of the device.

[0016] (3) In this invention, when the support plate moves upward, it drives the L-shaped plate to move upward. The upward movement of the L-shaped plate limits the position of the photovoltaic panel, preventing the sudden opening of the limit block and causing damage to the photovoltaic panel. At the same time, the upward movement of the L-shaped plate pushes the trapezoidal block to move towards the limit block. The movement of the trapezoidal block towards the limit block drives the limit plate of the trapezoidal block to move towards the limit block, and the limit block is limited by the limit plate, preventing the operator from wrongly rotating the limit block and causing the photovoltaic panel to lose support. The push plate is used to push the photovoltaic panel into close contact with the fixed frame, preventing the photovoltaic panel from shaking inside the fixed frame and affecting the service life of the photovoltaic panel. Description of the Drawings

[0017] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the bottom structure of the support frame of the present invention; Figure 3 Schematic diagram of the slide rail and the elastic telescopic rod of the present invention; Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure of part A in the present invention; Figure 5 Schematic diagram of the sectional structure of the protective cover of the present invention; Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure of part B in the present invention; Figure 7 Schematic diagram of the sectional structure of the fixed frame of the present invention.

[0018] In the figure: 1. Support frame; 2. Connecting frame; 3. Fixed frame; 4. Photovoltaic panel; 41. Limit block; 5. Driving motor; 51. Connecting rod; 6. Protective cover; 7. Pulley frame; 8. Short board; 9. Slide rail; 10. Elastic telescopic rod; 11. Cleaning brush; 12. Rotating block; 13. Fixed block; 14. Connecting block; 15. Arc-shaped block; 161. Sliding plate; 162. Pulling plate; 163. Rotating plate; 164. Connecting pull rod; 165. Fixed plate; 166. Rotating plate; 167. Sliding seat; 168. Support plate; 171. L-shaped plate; 172. Trapezoidal block; 173. Limit plate; 174. Square plate; 175. Trapezoidal sliding plate; 176. U-shaped rod; 177. Push plate. Detailed Implementation Modes

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1 - Figure 5 In an embodiment of the present invention: a photovoltaic power generation device includes a support frame 1, a connecting frame 2 is fixedly installed on the top of the support frame 1, a fixing frame 3 is fixedly installed on the top of the connecting frame 2, a photovoltaic panel 4 is arranged inside the fixing frame 3, a limiting block 41 is rotatably installed on the surface of the fixing frame 3, a driving motor 5 is fixedly installed on the surface of the support frame 1, a connecting rod 51 is fixedly installed at the output end of the driving motor 5, a protective cover 6 is rotatably installed on the surface of the connecting rod 51, a pulley frame 7 is fixedly installed on the surface of the fixing frame 3, a short plate 8 is fixedly installed on the surface of the protective cover 6, a slide rail 9 is fixedly installed on the surface of the fixing frame 3, an elastic telescopic rod 10 is slidably installed on the inner wall of the slide rail 9, a cleaning brush 11 is fixedly installed at the free end of the elastic telescopic rod 10, a rotating block 12 is rotatably installed at the free end of the elastic telescopic rod 10, a fixing block 13 is fixedly installed at the free end of the elastic telescopic rod 10, a connecting block 14 is fixedly installed on the surface of the slide rail 9, and an arc-shaped block 15 is fixedly installed on the top of the connecting block 14. The photovoltaic panel 4 is covered by the upward rotation of the protective cover 6 to prevent snow and water generated in rainy and snowy weather from covering the photovoltaic panel 4, resulting in a decrease in the service life of the photovoltaic panel 4.

[0021] A first spring is arranged between the slide rail 9 and the elastic telescopic rod 10, and the elastic telescopic rod 10 is driven by the first spring to reset, and the cleaning brush 11 contacts the surface of the photovoltaic panel 4.

[0022] When this embodiment works: by starting the driving motor 5 to move in the direction close to the limiting block 41, the output end of the driving motor 5 moving in the direction close to the limiting block 41 will drive the connecting rod 51 to move in the direction close to the limiting block 41, the connecting rod 51 moving in the direction close to the limiting block 41 will drive the protective cover 6 to move in the direction close to the limiting block 41, the protective cover 6 moving in the direction close to the limiting block 41 will contact the pulley frame 7, and the pulley frame 7 will cause the protective cover 6 to rotate upward. The photovoltaic panel 4 is covered by the upward rotation of the protective cover 6 to prevent snow and water generated in rainy and snowy weather from covering the photovoltaic panel 4, resulting in a decrease in the service life of the photovoltaic panel 4. At the same time, the protective cover 6 moving in the direction close to the limiting block 41 will drive the short plate 8 to move in the direction close to the limiting block 41, the short plate 8 moving in the direction close to the limiting block 41 will push the cleaning brush 11 to move in the direction close to the limiting block 41, the cleaning brush 11 will fit on the surface of the photovoltaic panel 4 to clean the impurities on the photovoltaic panel 4. At the same time, the cleaning brush 11 moving in the direction close to the limiting block 41 will drive the elastic telescopic rod 10 to move in the direction close to the limiting block 41, the elastic telescopic rod 10 moving in the direction close to the limiting block 41 will drive the rotating block 12 to move in the direction close to the limiting block 41, and during the process of the rotating block 12 moving in the direction close to the limiting block 41, it will contact the arc-shaped block 15, and the arc-shaped block 15 will push the rotating block 12 to move upward. The impurities adhered to the cleaning brush 11 are shaken off by the up and down movement of the rotating block 12 to prevent affecting subsequent cleaning.

[0023] Please refer to Figure 1 - Figure 7 Figure 7 , on the basis of the above embodiments, in another embodiment of the present invention, a support device for supporting the device and an anti-shake device for preventing the photovoltaic panel 4 from shaking are provided on the protective cover 6. The support device includes a sliding plate 161, a pulling plate 162, a rotating plate 163, a connecting pull rod 164 and a fixing plate 165. The sliding plate 161 is slidably installed on the inner wall of the protective cover 6, the pulling plate 162 is fixedly installed on the surface of the sliding plate 161, the rotating plate 163 is rotatably installed on the inner wall of the protective cover 6, the connecting pull rod 164 is fixedly installed on the surface of the pulling plate 162, and the fixing plate 165 is fixedly installed on the surface of the rotating plate 163. By rotating the rotating plate 163 downward, the photovoltaic panel 4 is completely covered, improving the protection effect.

[0024] A rotating plate 166 is rotatably installed on the surface of the sliding plate 161, a sliding seat 167 is slidably installed on the inner wall of the protective cover 6, one end of the rotating plate 166 away from the sliding plate 161 is rotatably installed on the inner wall of the sliding seat 167, and a support plate 168 is slidably installed on the surface of the connecting frame 2. By moving the support plate 168 upward, the bottom of the fixed frame 3 is supported, improving the stability of the device.

[0025] A second spring is provided between the sliding plate 161 and the protective cover 6 to drive the sliding plate 161 to reset through the second spring. A first torsion spring is provided between the rotating plate 163 and the protective cover 6 to drive the rotating plate 163 to reset through the first torsion spring. A third spring is provided between the protective cover 6 and the sliding seat 167 to drive the sliding seat 167 to reset through the third spring. A fourth spring is provided between the connecting frame 2 and the support plate 168 to drive the support plate 168 to reset through the fourth spring.

[0026] The anti-shake device includes an L-shaped plate 171, a trapezoidal block 172 and a limiting plate 173. The L-shaped plate 171 is fixedly installed on the surface of the support plate 168, the trapezoidal block 172 is slidably installed on the surface of the photovoltaic panel 4, and the limiting plate 173 is fixedly installed on the surface of the trapezoidal block 172. The limiting block 41 is limited by the limiting plate 173 to prevent the operator from wrongly rotating the limiting block 41, resulting in the loss of support for the photovoltaic panel 4.

[0027] A groove is formed in the inner wall of the support plate 168, a square plate 174 is fixedly installed on the inner wall of the groove, a trapezoidal sliding plate 175 is slidably installed at the bottom of the fixed frame 3, a U-shaped rod 176 is fixedly installed on the surface of the trapezoidal sliding plate 175, and a push plate 177 is fixedly installed at one end of the U-shaped rod 176 away from the trapezoidal sliding plate 175. The photovoltaic panel 4 is pushed by the push plate 177 to be in close contact with the fixed frame 3, preventing the photovoltaic panel 4 from shaking inside the fixed frame 3 and affecting the service life of the photovoltaic panel 4.

[0028] A fifth spring is arranged between the trapezoidal block 172 and the photovoltaic panel 4, and the trapezoidal block 172 is driven to reset by the fifth spring. A sixth spring is arranged between the fixed frame 3 and the trapezoidal slide plate 175, and the trapezoidal slide plate 175 is driven to reset by the sixth spring.

[0029] When this embodiment works: the protective cover 6 moves towards the direction close to the limit block 41, driving the sliding plate 161 to move towards the direction close to the limit block 41. During the process of the sliding plate 161 moving towards the direction close to the limit block 41, it will contact the pulley frame 7, and the pulley frame 7 will push the sliding plate 161 to move towards the direction close to the inner wall of the protective cover 6. The sliding plate 161 moving towards the direction close to the inner wall of the protective cover 6 will drive the pull plate 162 to move towards the direction close to the inner wall of the protective cover 6. The pull plate 162 moving towards the direction close to the inner wall of the protective cover 6 drives the connecting pull rod 164 to move towards the direction close to the inner wall of the protective cover 6. The connecting pull rod 164 moving towards the direction close to the inner wall of the protective cover 6 will drive the fixed plate 165 to rotate downward. The fixed plate 165 rotating downward will drive the rotating plate 163 to rotate downward. The photovoltaic panel 4 is completely covered by the downward rotation of the rotating plate 163, improving the protection effect. At the same time, the sliding plate 161 moving towards the direction close to the inner wall of the protective cover 6 will drive the rotating plate 166 to rotate. The rotating plate 166 rotating will drive the sliding seat 167 to move upward. The sliding seat 167 moving upward will drive the support plate 168 to move upward. The bottom of the fixed frame 3 is supported by the upward movement of the support plate 168, improving the stability of the device.

[0030] The support plate 168 moving upward drives the L-shaped plate 171 to move upward. The L-shaped plate 171 moving upward will limit the photovoltaic panel 4, preventing the sudden opening of the limit block 41, which may cause damage to the photovoltaic panel 4. At the same time, the L-shaped plate 171 moving upward will push the trapezoidal block 172 to move towards the direction close to the limit block 41. The trapezoidal block 172 moving towards the direction close to the limit block 41 will drive the limit plate 173 to move towards the direction close to the limit block 41. The limit block 41 is limited by the limit plate 173, preventing the operator from wrongly rotating the limit block 41, which may cause the photovoltaic panel 4 to lose support. At the same time, the support plate 168 moving upward drives the square plate 174 to move upward. The square plate 174 moving upward will push the trapezoidal slide plate 175 to move away from the square plate 174. The trapezoidal slide plate 175 moving away from the square plate 174 will drive the U-shaped rod 176 to move away from the square plate 174. The U-shaped rod 176 moving away from the square plate 174 will drive the push plate 177 to move towards the photovoltaic panel 4. The photovoltaic panel 4 is pushed by the push plate 177 to be in close contact with the fixed frame 3, preventing the photovoltaic panel 4 from shaking inside the fixed frame 3 and affecting the service life of the photovoltaic panel 4.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic power generation device, characterized in that: Including: A support frame (1), a connecting frame (2) is fixedly installed at the top of the support frame (1), a fixed frame (3) is fixedly installed at the top of the connecting frame (2), a photovoltaic panel (4) is arranged inside the fixed frame (3), a limiting block (41) is rotatably installed on the surface of the fixed frame (3), a driving motor (5) is fixedly installed on the surface of the support frame (1), a connecting rod (51) is fixedly installed at the output end of the driving motor (5), a protective cover (6) is rotatably installed on the surface of the connecting rod (51), a pulley frame (7) is fixedly installed on the surface of the fixed frame (3), a short plate (8) is fixedly installed on the surface of the protective cover (6), a slide rail (9) is fixedly installed on the surface of the fixed frame (3), an elastic telescopic rod (10) is slidably installed on the inner wall of the slide rail (9), a cleaning brush (11) is fixedly installed at the free end of the elastic telescopic rod (10), a rotating block (12) is rotatably installed at the free end of the elastic telescopic rod (10), a fixed block (13) is fixedly installed at the free end of the elastic telescopic rod (10), a connecting block (14) is fixedly installed on the surface of the slide rail (9), an arc-shaped block (15) is fixedly installed at the top of the connecting block (14), and a support device for supporting the device and an anti-shake device for preventing the photovoltaic panel (4) from shaking are arranged on the protective cover (6).

2. The photovoltaic power generation device according to claim 1, wherein: A first spring is arranged between the slide rail (9) and the elastic telescopic rod (10), and the cleaning brush (11) is in contact with the surface of the photovoltaic panel (4).

3. A photovoltaic power generation device according to claim 2, characterized in that: The support device includes a sliding plate (161), a pulling plate (162), a rotating plate (163), a connecting pull rod (164) and a fixing plate (165). The sliding plate (161) is slidably installed on the inner wall of the protective cover (6), the pulling plate (162) is fixedly installed on the surface of the sliding plate (161), the rotating plate (163) is rotatably installed on the inner wall of the protective cover (6), the connecting pull rod (164) is fixedly installed on the surface of the pulling plate (162), and the fixing plate (165) is fixedly installed on the surface of the rotating plate (163).

4. A photovoltaic power generation device according to claim 3, characterized in that: A rotating plate (166) is rotatably installed on the surface of the sliding plate (161), a sliding seat (167) is slidably installed on the inner wall of the protective cover (6), and one end of the rotating plate (166) away from the sliding plate (161) is rotatably installed on the inner wall of the sliding seat (167). A support plate (168) is slidably installed on the surface of the connecting frame (2).

5. A photovoltaic power generation device according to claim 4, characterized in that: A second spring is arranged between the sliding plate (161) and the protective cover (6), a first torsion spring is arranged between the rotating plate (163) and the protective cover (6), a third spring is arranged between the protective cover (6) and the sliding seat (167), and a fourth spring is arranged between the connecting frame (2) and the support plate (168).

6. The photovoltaic power generation device according to claim 5, characterized in that: The anti-shake device includes an L-shaped plate (171), a trapezoidal block (172) and a limiting plate (173). The L-shaped plate (171) is fixedly installed on the surface of the support plate (168), the trapezoidal block (172) is slidably installed on the surface of the photovoltaic panel (4), and the limiting plate (173) is fixedly installed on the surface of the trapezoidal block (172).

7. A photovoltaic power generation device according to claim 6, characterized in that: A groove is formed in the inner wall of the support plate (168), a square plate (174) is fixedly installed on the inner wall of the groove, a trapezoidal sliding plate (175) is slidably installed at the bottom of the fixed frame (3), a U-shaped rod (176) is fixedly installed on the surface of the trapezoidal sliding plate (175), and a push plate (177) is fixedly installed at one end of the U-shaped rod (176) away from the trapezoidal sliding plate (175).

8. A photovoltaic power generation device according to claim 7, characterized in that: A fifth spring is arranged between the trapezoidal block (172) and the photovoltaic panel (4), and a sixth spring is arranged between the fixed frame (3) and the trapezoidal sliding plate (175).

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