A self-cleaning photovoltaic power generation device for electric power grid

Abstract

The present invention discloses a self-cleaning photovoltaic power generation device for electric power grid, which relates to the field of photovoltaic power generation panel cleaning technology, including a photovoltaic power generation panel and a cleaning component installed on the photovoltaic power generation panel, a storage box is fixedly installed on one side of the photovoltaic power generation panel, a hollow shaft is fixedly connected in the storage box, the cleaning component includes a central shaft coaxially connected in the hollow shaft, a cleaning brush is fixedly connected to the central shaft, a first driving component driving the central shaft to rotate is arranged in the storage box; a second driving component driving the cover plate component to rotate, overlap and unfold is arranged in the storage box. The present invention provides a self-cleaning photovoltaic power generation device for electric power grid, when dust accumulates, the cleaning component can clean the photovoltaic power generation panel; when encountering sandstorm weather or severe weather such as hail, freezing snow, etc. at night, the cover plate component overlapped in the storage box can unfold to cover the photovoltaic power generation panel to protect it.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic power generation panel cleaning, in particular to a self-cleaning photovoltaic power generation device for a power grid. Background Art

[0002] Photovoltaic power generation technology converts sunlight directly into electrical energy by utilizing the photoelectric effect at the semiconductor interface. The core components of this technology include solar panels, controllers, and inverters, which are mainly composed of electronic components. In order to form a large-area solar power generation system, solar cells are connected in series and packaged to provide protection. In addition, combined with components such as power controllers, a complete photovoltaic power generation system is formed. In order to improve the energy efficiency of solar panels, they are usually installed on roofs or high places. However, since photovoltaic panels are exposed to the outside, dust easily accumulates, and it is difficult to clean them thoroughly by rain alone, which affects the power generation efficiency. Therefore, it is necessary to clean photovoltaic panels regularly.

[0003] The patent with announcement number CN220254445U discloses a "self-cleaning device for photovoltaic panels", which includes a panel frame, a photovoltaic panel is fixedly embedded in the panel frame, a mobile frame is provided on the panel frame, a connecting plate is fixed on the mobile frame, a brush is fixed on the connecting plate, and the brush is in close contact with the photovoltaic panel. The utility model is driven by a motor to enable the mobile frame to move back and forth, driving the brush to clean the photovoltaic panel to achieve a self-cleaning effect, and the elastic card is connected to the card slot, which can facilitate the regular replacement of the brush and achieve quick assembly.

[0004] The technology in the above patent, driven by a motor, enables the mobile frame to move back and forth, driving the brush to clean the photovoltaic panels, and achieving a self-cleaning effect. However, the disadvantage is that there is a lack of protection for the photovoltaic panels. Under the influence of windy and sandy weather at night, the photovoltaic panels exposed to the air will accelerate the accumulation of dust; under the influence of severe weather such as hail, freezing snow, etc., the photovoltaic panels exposed to the air will be damaged. Summary of the invention

[0005] The purpose of the present invention is to provide a self-cleaning photovoltaic power generation device for a power grid to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-cleaning photovoltaic power generation device for an electric power grid, comprising a photovoltaic power generation panel and a cleaning assembly installed on the photovoltaic power generation panel, a storage box is fixedly installed on one side of the photovoltaic power generation panel, a hollow shaft is fixedly connected in the storage box, the cleaning assembly comprises a central shaft coaxially rotatably connected in the hollow shaft, a cleaning brush is fixedly connected to the central shaft, and a first driving assembly for driving the central shaft to rotate is arranged in the storage box; a cover assembly is arranged on the hollow shaft, the cover assembly comprises a plurality of cover members rotatably sleeved on the hollow shaft in sequence, limiting members are arranged between each adjacent two cover members and between one of the outermost cover members and the storage box, the cover assembly can be rotatably overlapped into the storage box, and can be rotated and unfolded to cover the photovoltaic power generation panel, and a second driving assembly for driving the cover assembly to rotate and overlap and rotate and unfold is arranged in the storage box.

[0007] Furthermore, the first driving assembly includes a first motor disposed in the storage box, and a driving shaft of the first motor is coaxially fixedly connected to the central axis.

[0008] Furthermore, the second driving assembly includes a second motor and a rocker arm, the second motor is disposed in the storage box, one end of the rocker arm is fixedly connected to a driving shaft of the second motor, and the other end of the rocker arm is fixedly connected to one of the outermost cover plates.

[0009] Furthermore, the second driving assembly includes a fixing rod, one end of which is fixedly connected to the central axis, and the other end of which is fixedly connected to one of the two outermost cover plates.

[0010] Furthermore, the second driving assembly includes: an elastic telescopic rod, one end of which is fixedly connected to the central axis, and the other end of which is fixedly connected to a sliding column; a connecting plate, which is fixedly connected to one of the two outermost cover plates; a first guide groove and a second guide groove, both of which are arranged on the connecting plate, both ends of the second guide groove are connected to the first guide groove, and the sliding column can slide with the first guide groove and the second guide groove respectively; a first gear rod and a second gear rod, both of which are elastically rotatably connected to the connecting plate, and the first gear rod has a first position for closing the entrance of the second guide groove during the rotation stroke, and the second gear rod has a second position for closing the outlet of the second guide groove during the rotation stroke; a third gear rod, which is elastically slidably connected to the connecting plate, and the third gear rod has a third position for blocking the middle part of the second guide groove during the sliding stroke; a guide groove, which is arranged on the storage box, and can slide with the guide rod on the third gear rod.

[0011] Furthermore, the elastic telescopic rod includes a first connecting rod, a second connecting rod, a first hanging rod, a second hanging rod and a first elastic member, the first connecting rod is fixedly connected to the central axis, the second connecting rod is slidably connected to the first connecting rod, the first connecting rod is provided with a first hanging rod, the second connecting rod is provided with a second hanging rod, one end of the first elastic member is hooked on the first hanging rod, and the other end is hooked on the second hanging rod.

[0012] Further, the first gear lever is rotatably connected to the first rotating shaft on the connecting plate, and a first torsion spring is provided on the first rotating shaft, one end of the first torsion spring is fixedly connected to the first rotating shaft, and the other end thereof is rotatably connected to the first gear lever; the second gear lever is rotatably connected to the second rotating shaft on the connecting plate, and a second torsion spring is provided on the second rotating shaft, one end of the second torsion spring is fixedly connected to the second rotating shaft, and the other end thereof is rotatably connected to the second gear lever; the third gear lever is slidably connected to the sliding rod on the connecting plate, and a second elastic member is provided on the sliding rod, one end of the second elastic member is fixedly connected to the third gear lever, and the other end thereof is fixedly connected to the sliding rod.

[0013] Furthermore, the limiting member arranged between each adjacent cover plate member includes a first slider and a first sliding groove. For any two adjacent cover plate members, the first slider is arranged on the adjacent surface of one of the cover plate members, and the first sliding groove is opened on the corresponding adjacent surface of the other cover plate member. When the cover plate assembly rotates relative to the storage box, each of the first sliders can slide and cooperate with the corresponding first sliding groove.

[0014] In the above technical scheme, the present invention provides a self-cleaning photovoltaic power generation device for an electric power grid. When dust accumulates, the cleaning component can clean the photovoltaic power generation panel; when encountering sandstorms or severe weather such as hail, sleet, etc. at night, the cover assembly stacked in the storage box can be unfolded to cover the photovoltaic power generation panel to protect it. When the lighting conditions are good, the cover assembly will rotate and stack in the storage box, and the photovoltaic power generation panel will continue to generate electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the structure of the cover plate assembly provided by an embodiment of the present invention when unfolded;

[0017] Figure 2 A schematic diagram of the structure of the cover assembly provided by an embodiment of the present invention when folded and stored;

[0018] Figure 3 A schematic diagram of the structure inside the storage box provided by an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of the structure of the cleaning brush provided by an embodiment of the present invention when in operation;

[0020] Figure 5 A schematic diagram of the structure provided for the first embodiment of the present invention;

[0021] Figure 6 A schematic diagram of the structure provided for the second embodiment of the present invention;

[0022] Figure 7 A schematic diagram of the structure provided for the third embodiment of the present invention;

[0023] Figure 8 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0024] Fig. 9 For the present invention Figure 7 A schematic diagram of the enlarged structure at B in the middle;

[0025] Fig.10 This is a structural disassembly diagram of the second driving assembly in the third embodiment of the present invention;

[0026] Fig.11 Schematic diagram of the structure of the first limiter and the second limiter in an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1. Storage box; 2. Hollow shaft; 3. First enclosure; 4. Second enclosure; 5. Photovoltaic panel; 6. Cover assembly; 11. Central shaft; 12. Cleaning brush; 13. First connecting rod; 14. Second connecting rod; 15. Sliding column; 16. First hanging rod; 17. Second hanging rod; 21. First slider; 22. First slide groove; 23. Second slider; 24. Second slide groove; 31. First gear rod; 32. Second gear rod; 33. Third gear rod; 34. Connecting plate; 35. First guide groove; 36. Second guide groove; 37. Guide groove; 38. Guide rod; 41. First elastic member; 42. Second elastic member; 43. First torsion spring; 44. Second torsion spring; 51. First motor; 52. Second motor; 53. Rocker; 54. Fixed rod. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] See also Figure 1-11A self-cleaning photovoltaic power generation device for an electric power grid provided by an embodiment of the present invention comprises a photovoltaic power generation panel 5 and a cleaning assembly installed on the photovoltaic power generation panel 5, a storage box 1 is fixedly installed on one side of the photovoltaic power generation panel 5, a hollow shaft 2 is fixedly connected in the storage box 1, the cleaning assembly comprises a central shaft 11 coaxially rotatably connected in the hollow shaft 2, a cleaning brush 12 is fixedly connected to the central shaft 11, a first driving assembly for driving the central shaft 11 to rotate is arranged in the storage box 1; a cover assembly 6 is arranged on the hollow shaft 2, the cover assembly 6 comprises a plurality of cover members rotatably sleeved on the hollow shaft 2 in sequence, a limiting member is arranged between each adjacent two cover members and between one of the outermost cover members and the storage box 1, the cover assembly 6 can be rotatably overlapped into the storage box 1, and can be rotated and unfolded to cover the photovoltaic power generation panel 5, and a second driving assembly for driving the cover assembly 6 to rotate and overlap and rotate and unfold is arranged in the storage box 1.

[0031] See also Fig.11 The limiting member arranged between each adjacent cover plate member, namely the first limiting member, includes a first slider 21 and a first slide groove 22. For any two adjacent cover plate members, the first slider 21 is arranged on the adjacent surface of one of the cover plate members, and the first slide groove 22 is opened on the corresponding adjacent surface of the other cover plate member. When the cover plate assembly 6 rotates relative to the storage box 1, each first slider 21 can slide and cooperate with the corresponding first slide groove 22. The first limiting members cooperate with each other so that the cover plate assembly 6 can be rotated, unfolded and overlapped along a fixed path, while also avoiding the separation phenomenon between the cover plate members, so that when the cover plate assembly 6 is fully unfolded, a gap is generated between the cover plate members, affecting the protective effect of the cover plate assembly 6 on the photovoltaic power generation panel 5.

[0032] See also Fig.11 , a limiting member, namely a second limiting member, is arranged between one of the outermost cover plates and the storage box 1, and includes a second slider 23, a second slide groove 24 and a second enclosure 4. The second enclosure 4 is fixedly installed in the storage box 1. A second slider 23 is arranged on one of the outermost cover plates and the second enclosure 4, and a second slide groove 24 is arranged on the other. When the cover assembly 6 rotates relative to the storage box 1, the second slider 23 can slide with the corresponding second slide groove 24, so that the cover assembly 6 can be rotated along a fixed path to be overlapped in the storage box 1 or rotated and unfolded from the storage box 1. At the same time, it also avoids the generation of a gap between one of the outermost cover plates and the storage box 1 when the cover assembly 6 is rotated and unfolded, thereby affecting the protective effect of the cover assembly 6 on the photovoltaic panel 5.

[0033] See also Figure 5The first driving assembly includes a first motor 51 disposed in the storage box 1, and the driving shaft of the first motor 51 is coaxially fixedly connected with the central shaft 11. When the photovoltaic panel 5 needs to be cleaned, the driving shaft of the first motor 51 rotates to drive the central shaft 11 to rotate, and the rotation of the central shaft 11 drives the cleaning brush 12 to rotate to achieve the cleaning of the photovoltaic panel 5.

[0034] See also Figure 5 In one embodiment provided by the present invention, namely the first embodiment, the second driving assembly includes a second motor 52 and a swing rod 53. The second motor 52 is disposed in the storage box 1. One end of the swing rod 53 is fixedly connected to the driving shaft of the second motor 52, and the other end of the swing rod 53 is fixedly connected to one of the outermost cover members. When the cover assembly 6 needs to be rotated and unfolded to cover the photovoltaic panel 5 or the cover assembly 6 needs to be rotated and folded in the storage box 1, the driving shaft of the second motor 52 rotates to drive the swing rod 53 to rotate, and the swing rod 53 rotates to drive the cover assembly 6 to rotate and unfold and rotate and fold.

[0035] See also Figure 6 In another embodiment provided by the present invention, namely the second embodiment, the second driving assembly includes a fixing rod 54, one end of which is fixedly connected to the central shaft 11, and the other end of which is fixedly connected to one of the two outermost cover members. When the driving shaft of the first motor 51 rotates, the driving shaft rotates to drive the central shaft 11 to rotate, and the rotation of the central shaft 11 produces two effects. One is to drive the cleaning brush 12 to rotate to clean the photovoltaic panel 5, and the other is to drive the fixing rod 54 to rotate to drive the cover assembly 6 to rotate and unfold to cover the photovoltaic panel 5 or rotate and overlap in the storage box 1.

[0036] See also Figure 7-10As a preferred embodiment, in another embodiment provided by the present invention, i.e., the third embodiment, the second driving assembly includes an elastic telescopic rod, a connecting plate 34, a first guide groove 35, a second guide groove 36, a first gear rod 31, a second gear rod 32, a third gear rod 33 and a guide groove 37. One end of the elastic telescopic rod is fixedly connected to the central axis 11, and the other end of the elastic telescopic rod is fixedly connected to the sliding column 15. Specifically, the elastic telescopic rod includes a first connecting rod 13, a second connecting rod 14, a first hanging rod 16, a second hanging rod 17 and a first elastic member 41, one end of the first connecting rod 13 is fixedly connected to the central axis 11, the other end of the first connecting rod 13 is slidably connected to the second connecting rod 14, and the end of the second connecting rod 14 away from the central axis 11 is fixedly connected to the sliding column 15. The first elastic member 41 is disposed between the first connecting rod 13 and the second connecting rod 14. Specifically, the first connecting rod 13 is provided with a first hanging rod 16, and the second connecting rod 14 is provided with a second hanging rod 17. One end of the first elastic member 41 is hooked on the first hanging rod 16, and the other end is hooked on the second hanging rod 17. The connecting plate 34 is fixedly connected to one of the two outermost cover members; the first guide groove 35 and the second guide groove 36 are both provided on the connecting plate 34, and both ends of the second guide groove 36 are connected to the first guide groove 35, and the sliding column 15 can slide with the first guide groove 35 and the second guide groove 36 respectively.

[0037] The first baffle rod 31 and the second baffle rod 32 are both elastically rotatably connected to the connecting plate 34. The first baffle rod 31 has a first position for closing the entrance of the second guide groove 36 in the rotation stroke, and the second baffle rod 32 has a second position for closing the exit of the second guide groove 36 in the rotation stroke. Specifically, the first baffle rod 31 is rotatably connected to the first rotating shaft on the connecting plate 34, and the first rotating shaft is provided with a first torsion spring 43, one end of the first torsion spring 43 is fixedly connected to the first rotating shaft, and the other end thereof is rotatably connected to the first baffle rod 31; the second baffle rod 32 is rotatably connected to the second rotating shaft on the connecting plate 34, and the second rotating shaft is provided with a second torsion spring 44, one end of the second torsion spring 44 is fixedly connected to the second rotating shaft, and the other end thereof is rotatably connected to the second baffle rod 32. The third baffle rod 33 is elastically slidably connected to the connecting plate 34. The third baffle rod 33 has a third position for blocking the middle part of the second guide groove 36 in the sliding stroke. Specifically, the third shift rod 33 is slidably connected to the slide rod on the connecting plate 34 , and the slide rod is provided with a second elastic member 42 , one end of the second elastic member 42 is fixedly connected to the third shift rod 33 , and the other end thereof is fixedly connected to the slide rod.

[0038] The process of the first elastic member 41 recovering its deformation drives the sliding column 15 to slide from the entrance of the first guide groove 35 into the entrance of the second guide groove 36; the process of the second elastic member 42 recovering its deformation drives the third gear rod 33 to be in the third position; the process of the first torsion spring 43 recovering its deformation drives the first gear rod 31 to be in the first position; the process of the second torsion spring 44 recovering its deformation drives the second gear rod 32 to be in the second position.

[0039] See also Figure 7 The guide groove 37 is arranged on the storage box 1 . Specifically, the first enclosure 3 is fixedly installed in the storage box 1 . The guide groove 37 is opened on the first enclosure 3 . The guide groove 37 can be slidably matched with the guide rod 38 on the third gear rod 33 .

[0040] In the third embodiment of the present invention, the rotation of the cleaning component can produce two effects, one of which is that the cleaning brush 12 cleans the photovoltaic panel 5, and during the cleaning process, it can synchronously drive the cover plate component 6 to rotate and overlap in the storage box 1 or rotate and unfold to cover the photovoltaic panel 5 for protection. The specific working process is: when the central axis 11 rotates to drive the cleaning brush 12 to move, the sliding column 15 on the elastic telescopic rod slides into the connecting plate 34 along the entrance of the second guide groove 36. During the sliding process, the sliding column 15 abuts against the first baffle rod 31 to move the first baffle rod 31 away from the first station. After the sliding column 15 continues to slide along the second guide groove 36 for a distance, the first baffle rod 31 blocks the entrance of the first guide groove 35 under the action of the first torsion spring 43. The first baffle rod 31 is in the first station, and the sliding column 15 abuts against the third baffle rod 33 in the middle of the second guide groove 36, which is in the third station. Then, at this time, if the central shaft 11 continues to rotate in the same direction, the central shaft 11 will drive the cover plate assembly 6 to rotate and overlap into the storage box 1 through the sliding column 15 on the elastic telescopic rod on the basis of having driven the cleaning brush 12 to move; if the central shaft 11 rotates in the opposite direction, the sliding column 15 will slide to the entrance of the second guide groove 36 and abut against the first baffle bar 31 in the first station, and the central shaft 11 will drive the cover plate assembly 6 to rotate and unfold to cover the photovoltaic light-emitting panel through the sliding column 15 on the elastic telescopic rod on the basis of having driven the cleaning brush 12 to move.

[0041] Another effect produced by the rotation of the cleaning assembly in the third embodiment of the present invention is that when the cover assembly 6 is rotated, folded and stored in the storage box 1, the cleaning assembly can rotate independently relative to the cover assembly 6 to clean the photovoltaic panel 5 without driving the cover assembly 6 to rotate and unfold synchronously. The specific working process is as follows: the process of the cover assembly 6 rotating and folding in the storage box 1 includes two processes: partial storage and complete storage. In the partial storage process, the cover assembly 6 has not yet been completely folded and stored in the storage box 1. The central axis 11 rotates to make the slide column 15 abut against the third gear rod 33 to make the cover assembly 6 move into the storage box 1. During this process, the guide rod 38 on the third gear rod 33 slides with the guide groove 37 on the first enclosure 3 to move the third gear rod 33 away from the third station. When the cover assembly 6 is completely folded in the storage box 1, the third gear rod 33 no longer blocks the middle part of the second guide groove 36, and the central axis 11 continues to rotate in the same direction. The slide column 15 is relative to the connecting plate 34 from the second guide groove 3 6 slides toward the exit of the second guide groove 36 and slides into the first guide groove 35. During this process, the slide post 15 abuts against the second stop rod 32 to make it away from the second station; after the slide post 15 continues to slide along the first guide groove 35 for a distance, the second stop rod 32 blocks the exit of the second guide groove 36 under the action of the second torsion spring 44, and the second stop rod 32 is in the second station. After that, the center shaft 11 rotates in the opposite direction, and the slide post 15 slides from the exit of the first guide groove 35 to the entrance of the first guide groove 35 relative to the connecting plate 34 and slides away from the connecting plate 34 from the entrance of the second guide groove 36; finally, the rotation of the center shaft 11 drives the cleaning brush 12 to rotate and no longer drives the cover plate assembly 6 to rotate, and the cleaning assembly is separated from the cover plate assembly 6.

[0042] In the first embodiment of the present invention, the first motor 51 rotates to drive the cleaning component to clean the photovoltaic panel 5, and the second motor 52 drives the rocker arm 53 to rotate to drive the cover assembly 6 to rotate, fold and unfold. By setting the first motor 51 and the second motor 52, the cleaning work of the cleaning component and the rotation work of the cover assembly 6 to rotate, unfold or fold can be operated independently or synchronously.

[0043] In the second embodiment of the present invention, the first motor 51 rotates and produces two effects at the same time. One is that the central shaft 11 reciprocates to drive the cleaning component to reciprocate and clean the photovoltaic panel 5. The other is that the central shaft 11 reciprocates to drive the fixing rod 54 to drive the cover assembly 6 to rotate, fold and rotate and unfold. By setting the first motor 51, the cleaning work of the cleaning component and the rotation work of the cover assembly 6 to rotate, unfold or fold can be synchronized.

[0044] In the third embodiment of the present invention, the first motor 51 drives the cleaning component to rotate, and the rotation of the cleaning component can produce two effects. One is to drive the cleaning brush 12 to clean the photovoltaic panel 5, and during the cleaning process, it can synchronously drive the cover assembly 6 to rotate and fold in the storage box 1 or rotate and unfold to cover the photovoltaic panel 5 to protect it; the second is that when the cover assembly 6 is rotated and folded and stored in the storage box 1, the cleaning group will be able to rotate independently relative to the cover assembly 6 to clean the photovoltaic panel 5 without driving the cover assembly 6 to rotate and unfold synchronously.

[0045] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A self-cleaning photovoltaic power generation device for a power grid, comprising a photovoltaic power generation panel (5) and a cleaning component installed on the photovoltaic power generation panel (5), characterized in that: A storage box (1) is fixedly mounted on one side of the photovoltaic power generation panel (5), a hollow shaft (2) is fixedly connected inside the storage box (1), a cleaning component comprises a central shaft (11) coaxially rotatably connected inside the hollow shaft (2), a cleaning brush (12) is fixedly connected to the central shaft (11), and a first driving component for driving the central shaft (11) to rotate is arranged inside the storage box (1); The hollow shaft (2) is provided with a cover assembly (6), the cover assembly (6) comprising a plurality of cover members which are rotatably sleeved on the hollow shaft (2) in sequence, and a limiting member is provided between each two adjacent cover members and between one of the outermost cover members and the storage box (1). The cover assembly (6) can be rotatably stacked into the storage box (1) and can be rotated and unfolded to cover the photovoltaic power generation panel (5), and a second driving assembly which drives the cover assembly (6) to be rotated and unfolded is provided in the storage box (1); The second driving assembly comprises: An elastic telescopic rod, one end of which is fixedly connected to the central shaft (11) and the other end of which is fixedly connected to a sliding column (15); A connecting plate (34) fixedly connected to one of the two outermost cover plate members; A first guide groove (35) and a second guide groove (36), both of which are formed on the connecting plate (34); both ends of the second guide groove (36) are connected to the first guide groove (35); and the slide column (15) can be slidably matched with the first guide groove (35) and the second guide groove (36) respectively; A first baffle rod (31) and a second baffle rod (32) are elastically rotatably connected to the connecting plate (34); the first baffle rod (31) has a first position for closing the entrance of the second guide groove (36) during its rotational travel; and the second baffle rod (32) has a second position for closing the exit of the second guide groove (36) during its rotational travel; A third stopper (33) is elastically slidably connected to the connecting plate (34), and the third stopper (33) has a third position in the sliding stroke for blocking the middle of the second guide groove (36); A guide groove (37) provided on the storage box (1) and capable of slidingly cooperating with a guide rod (38) on the third gear rod (33); The elastic telescopic rod comprises a first connecting rod (13), a second connecting rod (14), a first hanging rod (16), a second hanging rod (17) and a first elastic member (41); the first connecting rod (13) is fixedly connected to the central axis (11); the second connecting rod (14) is slidably connected to the first connecting rod (13); the first connecting rod (13) is provided with a first hanging rod (16); the second connecting rod (14) is provided with a second hanging rod (17); one end of the first elastic member (41) is hooked on the first hanging rod (16); and the other end is hooked on the second hanging rod (17).

2. A self-cleaning photovoltaic power generation device for a power grid according to claim 1, characterized in that: The first driving assembly comprises a first motor (51) arranged in the storage box (1), and a driving shaft of the first motor (51) is coaxially fixedly connected to the central shaft (11).

3. A self-cleaning photovoltaic power generation device for a power grid according to claim 1, characterized in that: The second driving assembly comprises a second motor (52) and a swing rod (53); the second motor (52) is arranged in the storage box (1); one end of the swing rod (53) is fixedly connected to a driving shaft of the second motor (52); and the other end of the swing rod (53) is fixedly connected to one of the outermost cover plate members.

4. A self-cleaning photovoltaic power generation device for a power grid according to claim 1, characterized in that: The second driving assembly comprises a fixed rod (54), one end of the fixed rod (54) being fixedly connected to the central shaft (11), and the other end of the fixed rod (54) being fixedly connected to one of the two outermost cover plate members.

5. A self-cleaning photovoltaic power generation device for a power grid according to claim 1, characterized in that: The first baffle rod (31) is rotatably connected to a first rotating shaft on the connecting plate (34), a first torsion spring (43) is provided on the first rotating shaft, one end of the first torsion spring (43) is fixedly connected to the first rotating shaft, and the other end thereof is rotatably connected to the first baffle rod (31); the second baffle rod (32) is rotatably connected to a second rotating shaft on the connecting plate (34), a second torsion spring (44) is provided on the second rotating shaft, one end of the second torsion spring (44) is fixedly connected to the second rotating shaft, and the other end thereof is rotatably connected to the second baffle rod (32); the third baffle rod (33) is slidably connected to a sliding rod on the connecting plate (34), a second elastic member (42) is provided on the sliding rod, one end of the second elastic member (42) is fixedly connected to the third baffle rod (33), and the other end thereof is fixedly connected to the sliding rod.

6. A self-cleaning photovoltaic power generation device for a power grid according to claim 1, characterized in that: The limiting member arranged between each two adjacent cover plate members comprises a first slider (21) and a first slide groove (22); for any two adjacent cover plate members, the first slider (21) is arranged on an adjacent surface of one of the cover plate members, and the first slide groove (22) is opened on a corresponding adjacent surface of the other cover plate member; when the cover plate assembly (6) rotates relative to the storage box (1), each first slider (21) can slide and cooperate with the corresponding first slide groove (22).

Images