CN111565015A

CN111565015A - Photovoltaic power station system

Info

Publication number: CN111565015A
Application number: CN202010394690.9A
Authority: CN
Inventors: 耿广科; 李洪涛; 周玉川; 孙阳; 李想
Original assignee: Qihan Electric Power Construction Group Co ltd
Current assignee: Qihan Electric Power Construction Group Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-08-21

Abstract

The invention relates to the technical field of photovoltaic power stations, in particular to a photovoltaic power station system. A photovoltaic power station system comprises a cleaning device, a support, a cell panel and a control system. The cleaning device cleans impurities on the upper surface of the battery panel along the inclination direction of the battery panel, can brush and clean the battery panel and cover the impurities in all areas such as the upper surface of the battery panel and the frame included angle area of the battery panel, and cleans the impurities out of the battery panel, so that the effective area of the upper surface of the battery panel for receiving illumination is increased, and the conversion efficiency of the photovoltaic module is improved. The cleaning device is provided with the rolling structure, and the rolling structure can be controlled to be folded or stretched out, so that the cleaning structure is prevented from being normally positioned on the battery panel to cause shielding, and the upper surface of the battery panel can be prevented from being scratched. Meanwhile, the long-time illumination influence on the service life of the cleaning structure is avoided.

Description

Photovoltaic power station system

Technical Field

The invention relates to the technical field of photovoltaic power stations, in particular to a photovoltaic power station system.

Background

A photovoltaic power station is a photovoltaic power generation system that uses solar energy, uses a power generation system composed of electronic components such as a crystalline silicon panel and an inverter, and is connected to a power grid and transmits power to the power grid. The power generation capacity of the photovoltaic power station is closely related to the illumination intensity received by the photovoltaic component, and whether the surface of the photovoltaic component is shielded or not is related to whether the photovoltaic component can receive solar illumination or not. Photovoltaic power plants are therefore typically installed in open areas. But the photovoltaic module still can't avoid being sheltered from by pollution such as dust, earth, bird droppings, clear up the photovoltaic module in spacious region and need invest a large amount of manpower, material resources.

Chinese patent publication No. CN109660197A discloses an intelligent photovoltaic system, which includes a sweeping part, specifically including a bracket, a screw slide rail, a cleaning arm set, a driving structure, and a battery panel. The cleaning arm set comprises a cleaning arm and a driving arm, the cleaning arm is placed on a surface to be cleaned of the battery plate, the driving arm is vertically fixed on a nut seat of the lead screw slide rail on the other surface of the battery plate and magnetically attracts the cleaning arm, and the driving structure is connected with and drives the nut seat to move along the length direction of the lead screw slide rail. The cleaning of the battery panel cleans impurities such as dust and mud on the upper surface of the battery panel from the side of the battery panel.

The above prior art solutions have the following drawbacks: the swept impurities will cause greater contamination of the drive structure mounted on the side of the panel, possibly affecting the drive structure. And the panel has all to have the link frame, and the cleaning arm normality pastes and leans on in the panel upper surface, is difficult to effectively remove, clear up the impurity of every position of panel.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a photovoltaic power station system which has the advantages of automatically cleaning a battery panel and not scratching the surface of the battery.

The above object of the present invention is achieved by the following technical solutions: a photovoltaic power station system comprises a central control system, a cell panel, a bracket and a cleaning device; the battery panel is obliquely arranged on the bracket; the cleaning device is electrically connected with the central control system.

The cleaning device comprises a lead screw slide rail, a driven slide groove, a moving roller and a driving structure.

The lead screw sliding rails and the driven sliding chutes are arranged in parallel and are respectively positioned on the outer sides of the two inclined edges of the battery panel, and the lengths of the lead screw sliding rails and the driven sliding chutes are not less than the lengths of the inclined edges of the battery panel; the lower surfaces of the lead screw slide rail and the driven chute are fixedly connected with the bracket; one end of the movable roller is in transmission connection with the lead screw slide rail through a gear set, and the other end of the movable roller is sleeved in the driven chute in a hollow mode.

The driving structure is connected and installed at one end of the screw rod slide rail and is electrically connected with the central control system; the driving structure is used for controlling the screw rod slide rail to rotate, so that the moving roller moves along the screw rod slide rail, and the moving roller rotates around the central axis of the moving roller.

The moving roller is tubular, and a plurality of strip holes arranged along the axial direction are distributed on the side wall of the moving roller; an inner shaft is sleeved in the movable roller. The inner wall of the inner shaft is provided with a sweeping structure which protrudes outwards in the radial direction; a winding structure is arranged on the inner side of the cleaning structure; a plurality of cleaning structures are respectively matched with the strip holes correspondingly; the outer end of the cleaning structure is controlled by a foldable structure and moves along the inner and outer directions of the strip hole; when the cleaning structure moves towards the outside of the strip hole, the outer end part of the cleaning structure is abutted against the upper surface of the battery plate; when the cleaning structure moves towards the inside of the strip hole, the outer end part of the cleaning structure is separated from the upper surface of the battery panel.

By adopting the technical scheme, the driving structure is arranged at one end of the lead screw sliding rail, and the lead screw sliding rail is positioned at the side edge of the battery plate, so that dust pollution cleaned by the cleaning device can be avoided to a greater extent. The driving structure can be arranged at the upper end or the lower end of the screw slide rail according to actual conditions. And the removal roller that cleaning device adopted rotates the clearance panel upper surface along the incline direction of panel, at the rotation process of removing the roller, drives a plurality of laying and cleans the structure outside removing the roller, can brush and remove, clear up the panel and lie in the panel upper surface and its frame contained angle region etc. and shelter from impurity to clear up out the panel with these impurity.

The two ends of the movable roller are respectively connected with the lead screw slide rail and the driven slide groove, so that the movable roller is parallelly erected on the upper surface of the battery board.

Simultaneously, the clearance structure is connected in removing the roller inboard through the installation of rolling structure, and when needs clearance panel, will clean the structure through rolling structure and move outside to a hole and stretch out, make and clean structure outer end and panel upper surface contact, rotate the clearance along with removing the roller and shelter from impurity.

And the driving structure is electrically connected and controlled by the central control system, so that personnel can remotely control the opening and closing, the rotating speed and the like of the driving structure through the central control system according to the condition of the photovoltaic power station. The driving structure can adopt a stepping motor, a speed reducing motor and the like.

After the impurities sheltered from on the upper surface of the battery panel are cleaned, the effective area of the battery panel for receiving illumination can be increased.

The present invention in a preferred example may be further configured to: the gear set comprises an upper gear and a lower gear which are positioned between the moving roller and the lead screw slide rail, so that the moving roller is indirectly contacted with the lead screw slide rail; the upper gear and the lower gear are respectively positioned on the front side and the rear side of the moving roller which moves along the lead screw slide rail in an inclined way; the upper gear and the lower gear are connected through a gear connecting rod, and two ends of the gear connecting rod are respectively connected with the upper gear and the lower gear in an empty sleeved mode.

By adopting the technical scheme, the upper gear and the lower gear can be arranged between the screw rod slide rail and the moving roller at equal intervals, so that the moving roller is prevented from contacting with the screw rod slide rail, and the rotating direction of the moving roller is opposite to the moving direction. Meanwhile, the gear set can clamp the moving roller in a meshing manner, so that the moving roller is prevented from moving when not in use, and the influence on normal use is avoided.

The present invention in a preferred example may be further configured to: end covers are arranged at two ends of the movable roller; an inner shaft hole matched with the end part of the inner shaft is formed in the middle of the end cover; two ends of the inner shaft are sleeved in inner shaft holes of the end covers in an empty mode; the foldable structure comprises an inner push plate, a reset structure and an ejection structure; the inner push plate is positioned between the ejection structure and the moving roller; the cleaning structure is fixed on the outer side wall of the inner push plate; the ejection structure is fixed on the inner shaft and used for ejecting the inner push plate outwards so as to enable the cleaning structure to move outwards; the reset structure is positioned between the inner shaft and the inner push plate; when the ejection structure does not eject the inner push plate outwards, the reset structure pushes the inner push plate inwards, so that the cleaning structure is normally positioned in the strip hole.

By adopting the technical scheme, the inner shaft is sleeved in the movable roller through the inner shaft hole arranged on the end cover, so that the arrangement of the coiling structure is convenient.

The foldable structure is folded inwards, the ejection structure rotates along with the inner shaft, the ejection structure is separated from the middle of the inner side of the inner push plate, the sum of the axial lengths of the ejection structure, the inner push plate and the cleaning structure is smaller than the distance from the inner shaft to the outer wall of the moving roller, and the inner push plate drives the cleaning structure to move inwards under the action of the reset structure, so that the cleaning structure is separated from the battery plate. Therefore, the shielding caused by the fact that the cleaning structure is normally positioned on the battery panel can be avoided, and the upper surface of the battery panel can be prevented from being scratched; meanwhile, the long-time illumination influence on the service life of the cleaning structure is avoided.

The foldable structure extends outwards, the ejection structure rotates along with the inner shaft and moves to the middle of the inner side of the inner push plate, the sum of the axial lengths of the ejection structure, the inner push plate and the cleaning structure is larger than the distance from the inner shaft to the outer wall of the moving roller, and the outer end of the cleaning structure is located on the outer side of the moving roller and can be in contact with the battery panel and used for cleaning shielding impurities on the upper surface of the battery panel.

The present invention in a preferred example may be further configured to: the ejection structure and the reset structure are respectively provided with a plurality of structures, and the ejection structure and the reset structure are arranged in a staggered mode along the axial direction of the inner shaft.

The outer wall of each ejection structure is radially outwards provided with ejector rods, and the number of the ejector rods of each ejection structure is equal to that of the inner push plates; the outer end surface of the ejector rod is a guide surface; the ejector rod is positioned on the inner side of the inner push plate.

The two ends of the reset structure are respectively arranged at the inner side edges of the two inner push plates which are oppositely arranged, so that the two inner push plates are oppositely stretched.

When the ejector rod rotates along with the inner shaft until the outer end of the ejector rod is positioned in the middle of the inner push plate, the inner push plate drives the cleaning structure to move towards the outside of the strip hole; when the ejector rod rotates along with the inner shaft until the outer end of the ejector rod is positioned at the inner side edge of the inner push plate, the inner push plate drives the cleaning structure to retract into the strip hole under the action of the reset structure; an inner shaft rotating drive is arranged between the upper surface of the end part of the lead screw sliding rail or the driven sliding groove and the end part of the inner shaft.

By adopting the technical scheme, the ejector rod arranged on the guide surface can better move along the inner side surface of the inner push plate to push the inner push plate to move outwards. The reset structure gives a stretching force which is converged in the middle between two oppositely arranged inner push plates.

When the outer end part of the ejector rod rotates to the side edge of the inner side surface of the inner push plate along with the inner shaft, the inner push plate of the foldable structure drives the cleaning structure to move inwards and retract under the action of the reset structure; when the outer end part of the ejector rod rotates to the middle of the inner side surface of the inner push plate along with the inner shaft, the inner push plate of the foldable structure drives the cleaning structure to move outwards and extend out.

The present invention in a preferred example may be further configured to: the inner shaft is rotationally driven to comprise a trigger plate and a stop lever which are matched with each other; the two end parts of the inner shaft are both fixed with trigger plates outwards in the radial direction; stop rods are fixed on the two end parts of the lead screw sliding rail or the driven sliding chute; the axial length of the stop lever along the inner shaft is not more than that of the trigger plate; when the movable rollers rotate to the two ends of the lead screw slide rail respectively, the stop lever pushes the trigger plate to rotate towards the direction opposite to the rotating direction of the movable rollers, so that the inner shaft drives the ejector rod to rotate.

By adopting the technical scheme, when the movable roller rotates to the upper end or the lower end of the inclined surface of the battery panel, the inner shaft and the movable roller are arranged in an empty sleeve mode, the trigger plate at the end part of the inner shaft is resisted by the stop lever, if the movable roller continues to rotate, the inner shaft can rotate towards the rotating direction of the movable roller, and then the coiling structure between the inner shaft and the movable roller can realize the action of coiling or uncoiling. The stop lever is arranged along the axial length of the inner shaft, so that the stop lever can be prevented from shielding the moving roller.

The present invention in a preferred example may be further configured to: the end cover is provided with a fan-shaped limiting groove, and the inner side of the limiting groove is communicated with the inner shaft hole; fan-shaped clamping blocks are respectively arranged at the two end parts of the inner shaft; the clamping block is matched with the limiting groove, and the radian of the clamping block is smaller than that of the limiting groove; the clamping block rotates around the central axis of the inner shaft; the clamping blocks are rotatably abutted against the two inner side walls of the limiting groove and respectively abutted against the inner side of the inner push plate and the inner side edge of the inner push plate corresponding to the ejector rod; the trigger plate is positioned on the outer side of the clamping block; at the moment the stop lever is contacted with the trigger plate, the stop lever is abutted against the radial outer end of the trigger plate; when the trigger plate touches the stop lever and rotates, the fixture block rotates from one inner side wall of the limiting groove to the other inner side wall of the limiting groove along the limiting groove.

By adopting the technical scheme, the limit groove and the fixture block are matched to control the rotation angle of the inner shaft, and the rotation angle is consistent with the rotation angle of the ejector rod from the middle of the inner side surface of the inner push plate to the edge of the inner side surface of the inner push plate. When the movable roller rotates to the inclined upper end of the battery panel, the stop lever abuts against and pushes the trigger plate and drives the inner shaft to rotate in the direction opposite to the rotating direction of the movable roller, and meanwhile, the clamping block and the limiting groove are matched to limit the rotating angle of the inner shaft.

The present invention in a preferred example may be further configured to: four inner push plates are uniformly arranged around the periphery of the inner shaft in a surrounding manner; the outer wall of the inner push plate is matched with the inner wall of the moving roller, and the inner wall of the inner push plate is a plane; four ejector rods are uniformly arranged on the outer wall of each ejection structure; the radian of the limiting groove is pi/2, and the radian of the clamping block is pi/4.

By adopting the technical scheme, the inner shaft rotates 45 degrees relative to the end cover through the quantity and angle setting, so that the rolling and extending actions of the rolling structure can be realized. The inner shafts of the four inner push plates at intervals are symmetrically arranged, and the edges of the two symmetrically arranged inner push plates are connected and provided with a reset structure. The return structure may be a spring.

The present invention in a preferred example may be further configured to: the inner wall of the moving roller is radially inwards provided with a guide post, and the inner push plate is provided with a penetrating guide hole matched with the guide post.

By adopting the technical scheme, the arrangement of the guide post and the penetrating guide hole can ensure that the inner push plate keeps the moving direction, and the rolling structure is ensured to be smoothly carried out. Meanwhile, when the stop lever pushes the trigger plate to drive the inner shaft to rotate, the movable roller can be stopped under the matching of the clamping block and the limiting groove.

The present invention in a preferred example may be further configured to: the movable roller is formed by fixedly connecting two arc-shaped plates with semi-annular longitudinal sections.

By adopting the technical scheme, the movable roller arranged by the arc-shaped plate can facilitate the installation of the inner shaft and the coiling structure.

The present invention in a preferred example may be further configured to: the cleaning structure is a strip-shaped plate made of flexible materials.

By adopting the technical scheme, the strip-shaped plate made of the flexible material can avoid scraping of the cleaning structure on the battery panel; and when the cleaning structure is folded in the strip hole along with the foldable structure, the strip-shaped plate passes through the strip hole, and impurities attached to the surface of the strip-shaped plate can be cleaned, so that the cleanness of the strip-shaped plate is kept. The outer end part of the strip-shaped plate can be also provided with bristles, so that the cleaning efficiency is improved.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the cleaning device disclosed by the invention can clean impurities on the upper surface of the cell panel along the inclination direction of the cell panel, can brush and clean the cell panel and other shielding impurities in all areas such as an included angle area between the upper surface of the cell panel and a frame of the cell panel, and can clean the impurities out of the cell panel, so that the effective area of the upper surface of the cell panel for receiving illumination is increased, and the conversion efficiency of a photovoltaic module is further improved.

2. The cleaning device is provided with the rolling structure, and can control the rolling structure to be folded or stretched out, so that the cleaning structure is prevented from being normally positioned on the battery panel to cause shielding, and the upper surface of the battery panel is prevented from being scratched. Meanwhile, the long-time illumination influence on the service life of the cleaning structure is avoided.

3. When cleaning the structure and following the rolling structure to the strip pore adduction, the bar board passes through the strip pore, can also keep the clean and tidy of bar board with the adnexed impurity clearance in bar board surface.

Drawings

FIG. 1 is a schematic view of a photovoltaic array of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the connecting structure of the screw slide rail and the movable roller according to the present invention;

FIG. 4 is a schematic view of the retraction of A-A toward the sweeping structure of FIG. 2;

FIG. 5 is a schematic view of the position B-B in FIG. 2 extended toward the sweeping structure;

FIG. 6 is a schematic cross-sectional view taken along line C-C in FIG. 2;

FIG. 7 is a schematic view of the structure of the movable roller rotating to the upper end of the lead screw slide rail;

fig. 8 is a schematic view of the structure in which the movable roller is rotated to the lower end of the screw rail.

In the figure, 2, a panel; 3. a support; 4. a cleaning device; 5. a photovoltaic array; 6. a lead screw slide rail; 7. a driven chute; 8. a moving roller; 9. a drive structure; 10. a housing; 11. a bar hole; 12. an inner shaft; 13. a cleaning structure; 15. an upper gear; 16. a lower gear; 17. a gear link; 18. an end cap; 19. an inner shaft hole; 20. an inner push plate; 21. a reset structure; 22. an ejection structure; 23. a top rod; 24. a trigger plate; 25. a stop lever; 26. a limiting groove; 27. a clamping block; 28. a guide post; 29. a through guide hole; 30. an arc-shaped plate; 31. a strip plate; 32. a ring gear.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the invention discloses a photovoltaic power station system, which comprises a central control system, a cell panel 2, a bracket 3 and a cleaning device 4. The battery plate 2 is obliquely arranged on the bracket 3; the cleaning device 4 is electrically connected with the central control system. The number of the brackets 3 and the battery plates 2 is multiple; a plurality of cell panels 2 and the support 3 are arranged in order to form a photovoltaic array 5, and the photovoltaic array is arranged horizontally, vertically and at equal intervals.

As shown in fig. 2, the cleaning device 4 includes a screw slide 6, a driven chute 7, a moving roller 8, and a driving structure 9. The lead screw sliding rail 6 and the driven sliding chute 7 are arranged in parallel and are respectively positioned at the outer sides of the two inclined edges of the battery board 2, and the lengths of the lead screw sliding rail 6 and the driven sliding chute 7 are not less than the lengths of the inclined edges of the battery board 2; the lower parts of the screw rod slide rail 6 and the driven chute 7 are fixedly connected with the bracket 3.

As shown in fig. 3, the shift roller 8 is provided at one end with a ring gear 32; the movable roller 8 is meshed with a gear set through a gear ring 32, the gear set is meshed with the screw rod slide rail 6, and the movable roller 8, the gear set and the screw rod slide rail 6 form a gear transmission structure. The other end of the moving roller 8 is slidably arranged in the driven sliding chute 7, so that the moving roller 8 is arranged on the upper surface of the battery panel 2 in parallel. The screw slide rail 6 is covered with a cover 10. The driving structure 9 is installed at the upper end or the lower end of the housing 10, and the driving structure 9 penetrates through the side wall of the housing 10 and is connected with one end of the screw rod slide rail 6. When the driving structure 9 stops rotating, the screw slide rail 6, the gear set and the moving roller 8 are self-locked and stopped.

As shown in fig. 2, the driving structure 9 is connected and controlled by the central control system, so that a person can remotely control the opening and closing, the rotating speed and the like of the driving structure 9 through the central control system according to the condition of the photovoltaic power station. The driving structure 9 may adopt a stepping motor, a reduction motor, etc. The driving structure 9 is used for controlling the screw rod slide rail 6 to rotate, so that the moving roller 8 moves along the screw rod slide rail 6, and the moving roller 8 rotates around the central axis of the moving roller 8. Drive structure 9 installs in lead screw slide rail 6 one end, and lead screw slide rail 6 is located the side of panel 2, can avoid the dust pollution that cleaning device 4 cleared up by a great extent.

As shown in fig. 2, the removal roller 8 that cleaning device 4 adopted rotates along the incline direction of panel 2 and clears up the 2 upper surfaces of panel, and at the rotation process of removal roller 8, drives a plurality of arrangements and cleans structure 13 outside removing roller 8, can brush off, clear up panel 2 and lie in panel 2 upper surfaces and all regions such as frame contained angle region etc. shelter from impurity to clear up panel 2 with these impurity.

As shown in fig. 2 and 4, the moving roller 8 is tubular, a plurality of strip holes 11 are formed in the side wall of the moving roller 8 in the axial direction, a plurality of strip holes 11 are formed in the peripheral wall of the moving roller 8, and all the strip holes 11 are arranged in a staggered manner. An inner shaft 12 is arranged in the moving roller 8. The inner wall of the inner shaft 12 is provided with a sweeping structure 13 which protrudes outwards in the radial direction; the cleaning structure 13 is provided with a plurality of cleaning structures which are respectively matched with the strip holes 11 correspondingly. A rolling structure is arranged on the inner side of the cleaning structure 13; the outer end of the cleaning structure 13 is controlled by a foldable structure and moves along the inside and outside directions of the strip hole 11; the cleaning structure 13 corresponds to the strip hole 11 and is staggered around the outer side wall of the moving roller 8 to clean each corner of the upper surface of the battery plate 2. When the cleaning structure 13 moves towards the outside of the strip hole 11, the outer end part of the cleaning structure 13 is abutted against the upper surface of the battery plate 2; when the cleaning structure 13 moves into the slot 11, the outer end of the cleaning structure 13 is separated from the upper surface of the battery plate 2. When needs clearance panel 2, will clean structure 13 through rolling structure and move outside 11 to a hole and stretch out, make and clean structure 13 outer end and panel 2 upper surface contact, rotate the clearance along with removing roller 8 and shelter from impurity.

As shown in fig. 3, the gear set includes an upper gear 15 and a lower gear 16 between the moving roller 8 and the lead screw slide rail 6, so that the moving roller 8 indirectly contacts with the lead screw slide rail 6; the upper gear 15 and the lower gear 16 are respectively positioned on the front side and the rear side of the moving roller 8 which obliquely moves along the screw slide rail 6; the upper gear 15 and the lower gear 16 are connected through a gear connecting rod 17, and two ends of the gear connecting rod 17 are respectively connected with the upper gear 15 and the lower gear 16 in an empty mode. The upper gear 15 and the lower gear 16 can be arranged between the screw rod slide rail 6 and the moving roller 8 at equal intervals, so that the moving roller 8 is prevented from contacting with the screw rod slide rail 6, and the rotating direction of the moving roller 8 is opposite to the moving direction. Meanwhile, the gear set can clamp the moving roller 8 in a meshing manner, so that the situation that the moving roller 8 moves when not in use and the normal use is influenced is avoided.

As shown in fig. 3, both ends of the moving roller 8 are mounted with end caps 18; an inner shaft 12 hole matched with the end part of the inner shaft 12 is arranged in the middle of the end cover 18; the two ends of the inner shaft 12 are hollow and are arranged in the inner shaft 12 hole of the end cover 18.

As shown in fig. 5, the retractable structure includes a push-in plate 20, a return structure 21, and an ejection structure 22. The ejection structure 22 and the reset structure 21 are respectively provided in plurality, and the ejection structure 22 and the reset structure 21 are arranged in a staggered manner along the axial direction of the inner shaft 12.

As shown in fig. 5, the inner pushing plate 20 is located between the ejection structure 22 and the moving roller 8; four inner push plates 20 are uniformly arranged around the periphery of the inner shaft 12; the inner shafts 12 of the four push plates 20 are symmetrically arranged at intervals. The outer wall of the inner push plate 20 is matched with the inner wall of the moving roller 8, and the inner wall of the inner push plate 20 is a plane. The cleaning structure 13 is fixed on the outer side wall of the inner push plate 20.

As shown in fig. 5, the ejection structures 22 are fixed to the inner shaft 12, the outer wall of the ejection structures 22 is provided with ejector rods 23 radially outward, and each ejection structure 22 is uniformly provided with four ejector rods 23. The outer end surface of the ejector rod 23 is a guide surface which can enable the ejector rod 23 to better move along the inner side surface of the inner push plate 20. The ejector pin 23 is located inside the push plate 20.

As shown in fig. 5, the reduction structure 21 is located between the inner shaft 12 and the inner push plate 20. Two ends of the reset structure 21 are respectively installed at the inner side edges of the two inner push plates 20 which are oppositely arranged, so that the two inner push plates 20 are oppositely stretched. The edges of the two inner push plates 20 which are symmetrically arranged are connected and provided with a reset structure 21, and the reset structure 21 is a spring. When the ejecting structure 22 does not eject the inner pushing plate 20 outwards, the resetting structure 21 pushes the inner pushing plate 20 inwards, so that the cleaning structure 13 is normally positioned in the bar hole 11.

As shown in fig. 5, when the top rod 23 rotates with the inner shaft 12 until the outer end of the top rod 23 is located in the middle of the inner push plate 20, the inner push plate 20 drives the cleaning structure 13 to move out of the slot 11; when the top rod 23 rotates along with the inner shaft 12 until the outer end of the top rod 23 is located at the inner side edge of the inner push plate 20, the inner push plate 20 drives the cleaning structure 13 to retract into the strip hole 11 under the action of the reset structure 21; an inner shaft rotating drive is arranged between the upper surface of the end part of the lead screw slide rail 6 or the driven chute 7 and the end part of the inner shaft 12.

As shown in fig. 5, when the outer end of the top rod 23 rotates along with the inner shaft 12 to the side of the inner side surface of the inner pushing plate 20, the inner pushing plate 20 with the foldable structure drives the cleaning structure 13 to move inwards and retract under the action of the resetting structure 21; when the outer end part of the top rod 23 rotates to the middle of the inner side surface of the inner push plate 20 along with the inner shaft 12, the inner push plate 20 with the foldable structure drives the cleaning structure 13 to move outwards and extend out.

As shown in fig. 3, the end cap 18 is provided with a fan-shaped stopper groove 26, and the inner side of the stopper groove 26 communicates with the inner shaft 12. The two ends of the inner shaft 12 are respectively provided with a fan-shaped fixture block 27, and the fixture blocks 27 are matched with the limiting grooves 26. The radian of the limiting groove 26 is pi/2, and the radian of the fixture block 27 is pi/4. The latch 27 rotates about the central axis of the inner shaft 12. The fixture block 27 is rotatably abutted against two inner side walls of the limiting groove 26, and is abutted against the inner side of the inner push plate 20 and the inner side edge of the inner push plate 20 corresponding to the ejector rod 23 respectively. The trigger plate 24 is located outside the latch 27. At the moment the stop lever 25 contacts the trigger plate 24, the stop lever 25 abuts against the radially outer end of the trigger plate 24. When the trigger plate 24 touches the stop lever 25 to rotate, the latch 27 rotates along the limiting groove 26 from one inner sidewall of the limiting groove 26 to the other inner sidewall of the limiting groove 26.

As shown in fig. 3 and 4, the limit groove 26 and the block 27 cooperate to control the rotation angle range of the inner shaft 12 to be 45 °, and the rotation angle is the same as the rotation angle of the top rod 23 from the middle of the inner side surface of the inner push plate 20 to the edge of the inner side surface of the inner push plate 20, so that the rolling and extending actions of the rolling structure are realized. When the movable roller 8 rotates to the inclined upper end of the battery panel 2, the stop lever 25 abuts against and pushes the trigger plate 24 and drives the inner shaft 12 to rotate in the direction opposite to the rotating direction of the movable roller 8, and meanwhile, the fixture block 27 and the limiting groove 26 are matched to limit the rotating angle of the inner shaft 12.

As shown in fig. 4, the moving roller 8 is formed by fixedly connecting two arc plates 30 having a semi-circular longitudinal section. The use of the moving roller 8 provided with the arc-shaped plate 30 facilitates the installation of the inner shaft 12 and the windable structure.

As shown in fig. 4 and 5, the inner wall of the moving roller 8 is provided with a guide post 28 radially inwards, and the inner push plate 20 is provided with a penetrating guide hole 29 matched with the guide post 28. The guide posts 28 and the penetrating guide holes 29 can keep the moving direction of the inner push plate 20, and ensure the smooth operation of the rolling structure. Meanwhile, when the stop lever 25 pushes the trigger plate 24 to drive the inner shaft 12 to rotate, the movable roller 8 can be stopped under the cooperation of the fixture block 27 and the limiting groove 26.

As shown in fig. 6 and 7, the inner shaft rotary drive includes a trigger plate 24 and a catch lever 25 that cooperate. The two end parts of the inner shaft 12 are both fixed with trigger plates 24 outwards in the radial direction; and stop rods 25 are fixed on the two end parts of the screw rod slide rail 6 or the driven slide groove 7. The axial length of the stop lever 25 along the inner shaft 12 is no greater than the axial length of the trigger plate 24.

As shown in fig. 7 and 8, when the moving rollers 8 rotate to the two ends of the screw rail 6, the stop lever 25 pushes the trigger plate 24 to rotate in the direction opposite to the rotating direction of the moving rollers 8, so that the inner shaft 12 drives the push rod 23 to rotate. When the movable roller 8 rotates to the upper end or the lower end of the inclined surface of the battery panel 2, because the inner shaft 12 and the movable roller 8 are arranged in an empty sleeve manner, the trigger plate 24 at the end part of the inner shaft 12 is resisted by the stop lever 25, and if the movable roller 8 continues to rotate, the inner shaft 12 can rotate towards the rotating direction of the movable roller 8, so that the coiling structure between the inner shaft 12 and the movable roller 8 realizes the action of coiling or extending. The stop rod 25 is arranged along the axial length of the inner shaft 12 to avoid the stop rod 25 from obstructing the moving roller 8.

As shown in fig. 8, the cleaning structure 13 is a strip-shaped plate 31 made of flexible material. The strip-shaped plate 31 made of flexible materials can avoid scraping of the cleaning structure 13 on the battery panel 2; and when cleaning structure 13 and following the interior shrink of rolling structure to bar hole 11, bar 31 process bar hole 11, can also keep the clean and tidy of bar 31 with the clearance of the adnexed impurity in bar 31 surface. The outer end part of the strip-shaped plate 31 can be also provided with bristles, so that the cleaning efficiency is improved.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A photovoltaic power station system comprises a central control system, a battery panel (2), a bracket (3) and a cleaning device (4); the battery plate (2) is obliquely arranged on the bracket (3); the cleaning device (4) is electrically connected with the central control system;

the method is characterized in that: the cleaning device (4) comprises a lead screw slide rail (6), a driven chute (7), a moving roller (8) and a driving structure (9);

the lead screw sliding rails (6) and the driven sliding chutes (7) are arranged in parallel and are respectively positioned on the outer sides of the two inclined edges of the battery board (2), and the lengths of the lead screw sliding rails (6) and the driven sliding chutes (7) are not less than the lengths of the inclined edges of the battery board (2); the lower surfaces of the screw rod slide rail (6) and the driven chute (7) are fixedly connected with the bracket (3); one end of the moving roller (8) is in transmission connection with the lead screw slide rail (6) through a gear set, and the other end of the moving roller is sleeved in the driven slide groove (7) in a hollow manner;

the driving structure (9) is connected and installed at one end of the screw rod sliding rail (6), and the driving structure (9) is electrically connected with the central control system; the driving structure (9) is used for controlling the screw rod slide rail (6) to rotate, so that the moving roller (8) moves along the screw rod slide rail (6), and the moving roller (8) rotates around the central axis of the moving roller;

the moving roller (8) is tubular, and a plurality of strip holes (11) arranged along the axial direction are distributed on the side wall of the moving roller (8); an inner shaft (12) is sleeved in the moving roller (8); the upper inner wall of the inner shaft (12) is provided with a sweeping structure (13) which protrudes outwards in the radial direction; a winding structure is arranged on the inner side of the cleaning structure (13); a plurality of cleaning structures (13) are respectively matched with the strip holes (11); the outer end of the cleaning structure (13) is controlled by a foldable structure and moves along the inner and outer directions of the strip hole (11); when the cleaning structure (13) moves towards the outside of the strip hole (11), the outer end part of the cleaning structure (13) is abutted against the upper surface of the battery plate (2); when the cleaning structure (13) moves towards the strip hole (11), the outer end part of the cleaning structure (13) is separated from the upper surface of the battery plate (2).

2. The photovoltaic power plant system of claim 1, wherein: the gear set comprises an upper gear (15) and a lower gear (16) which are positioned between the moving roller (8) and the screw rod slide rail (6), so that the moving roller (8) is indirectly contacted with the screw rod slide rail (6); the upper gear (15) and the lower gear (16) are respectively positioned on the front side and the rear side of the moving roller (8) which obliquely moves along the screw rod slide rail (6); the upper gear (15) and the lower gear (16) are connected through a gear connecting rod (17), and two ends of the gear connecting rod (17) are respectively connected with the upper gear (15) and the lower gear (16) in an empty sleeved mode.

3. The photovoltaic power plant system of claim 2, wherein: end covers (18) are arranged at two ends of the movable roller (8); an inner shaft (12) hole matched with the end part of the inner shaft (12) is formed in the middle of the end cover (18); both ends of the inner shaft (12) are sleeved in inner shaft (12) holes of the end covers (18); the foldable structure comprises an inner push plate (20), a reset structure (21) and an ejection structure (22); the inner push plate (20) is positioned between the ejection structure (22) and the moving roller (8); the cleaning structure (13) is fixed on the outer side wall of the inner push plate (20); the ejection structure (22) is fixed on the inner shaft (12) and used for ejecting the inner push plate (20) outwards so as to enable the cleaning structure (13) to move outwards; the resetting structure (21) is positioned between the inner shaft (12) and the inner push plate (20); when the ejection structure (22) does not eject the inner push plate (20) outwards, the reset structure (21) pushes the inner push plate (20) inwards, so that the cleaning structure (13) is normally positioned in the strip hole (11).

4. The photovoltaic power plant system of claim 3, wherein: the ejection structure (22) and the reset structure (21) are respectively provided with a plurality of structures, and the ejection structure (22) and the reset structure (21) are arranged in a staggered manner along the axial direction of the inner shaft (12);

ejector rods (23) are arranged on the outer wall of each ejection structure (22) outwards in the radial direction, and the number of the ejector rods (23) of each ejection structure (22) is equal to that of the inner push plates (20); the outer end surface of the ejector rod (23) is a guide surface; the ejector rod (23) is positioned on the inner side of the inner push plate (20);

two ends of the reset structure (21) are respectively arranged at the inner side edges of the two inner push plates (20) which are oppositely arranged;

when the ejector rod (23) rotates along with the inner shaft (12) until the outer end of the ejector rod (23) is positioned in the middle of the inner push plate (20), the inner push plate (20) drives the cleaning structure (13) to move towards the outside of the strip hole (11); when the top rod (23) rotates along with the inner shaft (12) until the outer end of the top rod (23) is positioned at the inner side edge of the inner push plate (20), the inner push plate (20) drives the cleaning structure (13) to retract into the strip hole (11) under the action of the resetting structure (21); an inner shaft rotating drive is arranged between the upper surface of the end part of the lead screw slide rail (6) or the driven chute (7) and the end part of the inner shaft (12).

5. The photovoltaic power plant system of claim 4, wherein: the inner shaft rotary drive comprises a trigger plate (24) and a stop lever (25) which are matched with each other; the two end parts of the inner shaft (12) are both fixed with trigger plates (24) radially outwards; stop rods (25) are fixed on the two end parts of the screw rod slide rail (6) or the driven slide groove (7); the axial length of the stop lever (25) along the inner shaft (12) is not greater than the axial length of the trigger plate (24); when the movable rollers (8) rotate to the two ends of the screw rod slide rail (6) respectively, the stop lever (25) pushes the trigger plate (24) to rotate towards the direction opposite to the rotating direction of the movable rollers (8), so that the inner shaft (12) drives the ejector rod (23) to rotate.

6. The photovoltaic power plant system of claim 5, wherein: the end cover (18) is provided with a fan-shaped limiting groove (26), and the inner side of the limiting groove (26) is communicated with the inner shaft (12) hole; fan-shaped fixture blocks (27) are respectively arranged at two end parts of the inner shaft (12); the clamping block (27) is matched with the limiting groove (26), and the radian of the clamping block (27) is smaller than that of the limiting groove (26); the clamping block (27) rotates around the central axis of the inner shaft (12); the clamping blocks (27) are rotatably abutted against two inner side walls of the limiting groove (26) and are abutted against the inner side of the inner push plate (20) and the inner side edge of the inner push plate (20) corresponding to the ejector rods (23) respectively; the trigger plate (24) is positioned on the outer side of the clamping block (27); at the moment that the stop lever (25) is contacted with the trigger plate (24), the stop lever (25) is abutted against the radial outer end of the trigger plate (24); when the trigger plate (24) touches the stop lever (25) to rotate, the fixture block (27) rotates from one inner side wall of the limiting groove (26) to the other inner side wall of the limiting groove (26) along the limiting groove (26).

7. The photovoltaic power plant system of claim 6, wherein: four inner push plates (20) are uniformly arranged on the periphery of the inner shaft (12) in a surrounding manner; the outer wall of the inner push plate (20) is matched with the inner wall of the moving roller (8), and the inner wall of the inner push plate (20) is a plane; four ejector rods (23) are uniformly arranged on the outer wall of each ejection structure (22); the radian of the limiting groove (26) is pi/2, and the radian of the clamping block (27) is pi/4.

8. The photovoltaic power plant system of claim 3, wherein: the inner wall of the moving roller (8) is radially inwards provided with a guide column (28), and the inner push plate (20) is provided with a penetrating guide hole (29) matched with the guide column (28).

9. The photovoltaic power plant system of claim 3, wherein: the moving roller (8) is formed by fixedly connecting two arc-shaped plates (30) with semi-annular longitudinal sections.

10. The photovoltaic power plant system of claim 1, wherein: the cleaning structure (13) is a strip-shaped plate (31) made of flexible materials.