Cleaning system for distributed photovoltaic power generation components

Abstract

The present invention discloses a cleaning system for distributed photovoltaic power generation components, which belongs to the technical field of photovoltaic power generation component maintenance equipment. The cleaning system for distributed photovoltaic power generation components includes a bracket, a driving mechanism and a liquid supply device, and also includes: a transmission shaft, which is arranged in parallel with the solar cell of the distributed photovoltaic panel, the transmission shaft is connected to a first power device, and a liquid passage is arranged in the transmission shaft; a plurality of cylindrical water bags, each of which is provided with a plurality of liquid outlets, and the liquid outlets are used to spray liquid onto the solar cell, and the outer wall of each cylindrical water bag is fitted with a solar cell of the distributed photovoltaic panel, and the outer wall of the cylindrical water bag is used to clean the solar cell; the liquid supply device can adjust the diameter and water pressure of each cylindrical water bag. The cleaning system for distributed photovoltaic power generation components of the present invention can reduce the wear on the solar cell while ensuring that the solar cell is clean, and ensure the photoelectric conversion rate of the solar cell.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation component maintenance equipment, and in particular to a cleaning system for distributed photovoltaic power generation components. Background Art

[0002] Distributed photovoltaic panels have the characteristics of high power generation and have become the mainstream of photovoltaic power generation. Distributed photovoltaic panels have multiple independent solar cells. The power generated by multiple solar cells is collected to provide higher power electricity. The outdoor environment of distributed photovoltaic panels is complex. After long-term work, the accumulated dust, bird droppings and mud stains caused by rain on the distributed photovoltaic panels will affect the power generation capacity of the distributed photovoltaic panels. Therefore, it is necessary to clean the distributed photovoltaic panel panels of the photovoltaic modules regularly.

[0003] The core components of the existing cleaning system for photovoltaic power generation components include a driving mechanism, a scrubbing mechanism and a liquid supply device, wherein the driving mechanism is connected to the scrubbing mechanism, the driving mechanism drives the scrubbing mechanism to move on the distributed photovoltaic panel, and the liquid supply device supplies cleaning liquid to the scrubbing mechanism, and the scrubbing mechanism is used to clean the solar cells on the distributed photovoltaic panel. When cleaning the solar cells, in order to clean the hardened mud stains and heavy stains such as dried bird droppings, the scrubbing mechanism needs to perform long-term and strong friction cleaning on the solar cells. In this process, the cleaning liquid is mixed with sand and mud stains to form mud. Under the continuous action of strong friction, the surface material of the solar cell will be scratched. The scars will accumulate over time and cause the surface material of the solar cell to become rough, making the light transmittance poor and reducing the photoelectric conversion rate of the solar cell. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems in the prior art and provide a cleaning system for distributed photovoltaic power generation components, which can prevent the surface materials of solar cells from being scratched while ensuring that the solar cells are clean.

[0005] The present invention provides a cleaning system for a distributed photovoltaic power generation assembly, comprising:

[0006] Bracket;

[0007] A driving mechanism is connected to the bracket, and the driving mechanism is used to drive the bracket to move on the distributed photovoltaic panel;

[0008] A transmission shaft is pivotally connected to the support, the transmission shaft is arranged in parallel with the solar cells of the distributed photovoltaic panel, the transmission shaft is connected to a first power device, and a liquid passage is arranged in the transmission shaft;

[0009] A plurality of cylindrical water bags are arranged along the axial direction of the transmission shaft, and the plurality of cylindrical water bags are arranged outside the transmission shaft, each cylindrical water bag is connected to the liquid passage, and the side wall of each cylindrical water bag is provided with a plurality of liquid outlets, and the liquid outlets are used to spray liquid onto the solar cell, and the outer wall of each cylindrical water bag is attached to a solar cell of the distributed photovoltaic panel, and the outer wall of the cylindrical water bag is used to clean the solar cell;

[0010] A liquid supply device is communicated with the liquid passage, and the liquid supply device adjusts the diameter and water pressure of each cylindrical water bag by adjusting the liquid supply speed into the liquid passage.

[0011] Preferably, the transmission shaft is fixedly connected to a plurality of hydraulic cylinders along its circumference, each hydraulic cylinder is connected to a hydraulic control circuit, an arc-shaped slide rail is provided on the bracket, the arc-shaped slide rail is coaxially arranged with the transmission shaft, a first spring is provided outside the transmission shaft, the first spring abuts against the transmission shaft, the first spring is used to apply an elastic force to the transmission shaft in the direction of the arc-shaped slide rail, under the action of the elastic force of the first spring, the piston of each hydraulic cylinder abuts against the arc-shaped slide rail, and the piston is used to drive the transmission shaft to move axially along the transmission shaft.

[0012] Preferably, the bracket is provided with a slide groove, the length direction of the slide groove is perpendicular to the solar cell, a slider is slidably connected in the slide groove, the transmission shaft is pivotally connected to the slider, a lifting mechanism is connected to the slider, the lifting mechanism is used to drive the slider to move along the length direction of the slide groove, each cylindrical water bag is provided with a cleaning sheet at both ends, the outer edge of the cleaning sheet can be inserted into the joint between two adjacent solar cells on the distributed photovoltaic panel, and the cleaning sheet is used to clean the joint.

[0013] Preferably, slip rings are fixedly connected at both ends of the cylindrical water bag, the cleaning sheet is connected to the slip rings, and a second spring is further provided outside the transmission shaft, one end of the second spring abuts against the slip ring, and the second spring is used to apply an elastic force to the slip ring toward one side of the cylindrical water bag connected to the slip ring. Under the action of the elastic force of the second spring and the extrusion force of the cylindrical water bag, the slip ring can move axially along the transmission shaft.

[0014] Preferably, the lifting mechanism includes a cylinder body and a lifting piston, the cylinder body is arranged in a direction perpendicular to the solar cell sheet, the lifting piston is slidably connected in the cylinder body along the length direction of the cylinder body, the lifting piston is connected to the slider, and the cylinder body is connected to the hydraulic control circuit.

[0015] Preferably, a hydraulic sensor is provided between the cylinder body and the hydraulic control circuit, and the hydraulic sensor is used to detect the real-time hydraulic value in the cylinder body. The hydraulic sensor is electrically connected to a controller, and the controller is electrically connected to the hydraulic control circuit. A maximum hydraulic value is preset in the controller, and the controller compares the real-time hydraulic value with the maximum hydraulic value. When the real-time hydraulic value is greater than the maximum hydraulic value, the controller controls the hydraulic control circuit to operate so that the real-time hydraulic value in the cylinder body is less than the maximum hydraulic value.

[0016] Preferably, the driving mechanism includes a left driving part and a right driving part, and the left driving part and the right driving part are arranged on the frames on both sides of the distributed photovoltaic panel. The left driving part and the right driving part have the same structure, and both include a C-shaped frame, a clamping wheel and a second power device. The C-shaped frame is fixedly connected to the bracket, and the clamping wheel is pivotally connected to the C-shaped frame. The axial direction of the clamping wheel is perpendicular to the solar cell sheet, and the clamping wheel is clamped on the frame of the distributed photovoltaic panel. The second power device is gear-connected with the clamping wheel.

[0017] Preferably, both ends of the clamping wheel are provided with limit blocks, and the limit blocks at both ends of the clamping wheel are respectively abutted against two sides of the distributed photovoltaic panel frame, and the limit blocks are used to limit the axial movement of the clamping wheel along the clamping wheel.

[0018] Preferably, a ball is provided on the piston of the hydraulic cylinder, and an arc-shaped slide rail is provided with an arc-shaped slide groove, and the arc-shaped slide groove is coaxially arranged with the transmission shaft. Under the action of the elastic force of the first spring, the ball on the piston abuts against the arc-shaped slide groove.

[0019] Preferably, the cleaning sheet is detachably connected to the slip ring.

[0020] Compared with the prior art, the present invention has the following beneficial effects: a cleaning system for distributed photovoltaic power generation components of the present invention can adjust the cleaning mode of the solar cell according to the severity of the stains when cleaning the solar cell. When cleaning light stains such as floating soil, the liquid supply speed of the liquid supply device into the liquid passage is reduced, the squeezing force applied by each cylindrical water bag to the solar cell is reduced, and the friction between the outer wall of the cylindrical water bag and the solar cell is reduced, so that the floating soil on the solar cell panel can be cleaned and the wear of the mud formed during cleaning on the solar cell can be reduced; and when cleaning the light stains such as floating soil, the liquid supply speed of the liquid supply device into the liquid passage is reduced, the squeezing force applied by each cylindrical water bag to the solar cell is reduced, and the friction between the outer wall of the cylindrical water bag and the solar cell is reduced, so as to clean the floating soil on the solar cell panel and reduce the wear of the mud formed during cleaning on the solar cell ... and the friction between the outer wall of the cylindrical water bag and the solar cell is reduced; and when cleaning the light stains such as floating soil, the liquid supply speed of the liquid supply device into the liquid passage is reduced, the squeezing force applied by each cylindrical water bag to the solar cell is reduced, and the friction between the outer wall of the cylindrical water bag and the solar cell is reduced; and when cleaning the light stains such as floating soil, the liquid supply speed of the liquid supply device into the liquid passage is reduced, the squeezing force When cleaning heavy stains such as bird droppings on solar cells, first reduce the diameter and water pressure of each cylindrical water bag to clean the floating soil on the surface of the solar cell, and then increase the liquid supply speed of the liquid supply device into the liquid passage, thereby increasing the squeezing force applied by each cylindrical water bag to the solar cell, and increasing the friction of the cylindrical water bag on the solar cell, thereby improving the cleaning effect of the cylindrical water bag on the compacted stains, so that the compacted stains can be cleaned, thereby reducing the wear on the solar cell while ensuring that the solar cell is clean, and ensuring the photoelectric conversion rate of the solar cell.

[0021] By controlling the action of the hydraulic control circuit, the piston of each hydraulic cylinder is controlled to extend or contract, and the transmission shaft can be driven to move along its own axial direction, thereby driving multiple cylindrical water bags to move along the axial direction of the transmission shaft. The self-rotating cylindrical water bags also move along the axial direction of their own rotation center, and can perform two-dimensional omnidirectional scrubbing on heavy stains, which can improve the cleaning effect of the entire cleaning system on heavy stains. When the transmission shaft drives the cleaning sheet to rotate, the stains in the joints between multiple solar cells can be specially cleaned, thereby improving the cleaning effect of the entire cleaning system on distributed photovoltaic panels, and preventing the accumulation of silt in the joints on the distributed photovoltaic panels, causing problems such as short circuits of solar cells. When the two cleaning sheets are inserted into the joints, the hydraulic pressure in the cylindrical water bag is reduced, and under the action of the second spring elastic force, the distance between the two cleaning sheets can be increased, so that the two rotating cleaning sheets can be used to clean the joints, and the silt accumulated in the joints can be cleaned to the maximum extent, thereby improving the cleaning effect of the entire cleaning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the AA surface of the present invention;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the BB surface of the present invention;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the CC surface of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the arc-shaped slide rail of the present invention;

[0027] Figure 6 It is a schematic structural diagram of the cleaning sheet of the present invention.

[0028] Description of reference numerals:

[0029] 1. Distributed photovoltaic panel, 101. bracket, 102. transmission shaft, 103. solar cell, 104. liquid outlet, 105. liquid channel, 106. cylindrical water bag, 201. hydraulic cylinder, 202. arc-shaped slide rail, 203. first spring, 204. piston, 301. slide groove, 302. slider, 303. lifting mechanism, 304. cleaning sheet, 305. joint, 401. slip ring, 402. second spring, 501. cylinder body, 502. lifting piston, 6. hydraulic sensor, 701. left drive unit, 702. right drive unit, 703. C-shaped frame, 704. clamping wheel, 705. second power device, 8. limit block, 901. ball, 902. arc-shaped slide groove. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 6 , the specific implementation of the present invention is described in detail, but it should be understood that the protection scope of the present invention is not limited by the specific implementation. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] like Figure 1-Figure 6 As shown, the cleaning system for distributed photovoltaic power generation components provided by the present invention includes: a bracket 101, a driving mechanism, a transmission shaft 102, a liquid supply device and a plurality of cylindrical water bags 106, the bracket 101; the driving mechanism is connected to the bracket 101, and the driving mechanism is used to drive the bracket 101 to move on the distributed photovoltaic panel 1; the transmission shaft 102 is pivotally connected to the bracket 101, and the transmission shaft 102 is arranged parallel to the solar cell 103 of the distributed photovoltaic panel 1, the transmission shaft 102 is connected to the first power device, and the transmission shaft 102 is provided with a liquid passage 105; the plurality of cylindrical water bags 106 are arranged along the axial direction of the transmission shaft 102, and the plurality of The cylindrical water bag 106 is arranged outside the transmission shaft 102, and each cylindrical water bag 106 is connected to the liquid passage 105. The side wall of each cylindrical water bag 106 is provided with multiple liquid outlets 104, and the liquid outlets 104 are used to spray liquid onto the solar cell 103. The outer wall of each cylindrical water bag 106 is in contact with a solar cell 103 of the distributed photovoltaic panel 1, and the outer wall of the cylindrical water bag 106 is used to clean the solar cell 103; the liquid supply device is connected to the liquid passage 105, and the liquid supply device adjusts the diameter and water pressure of each cylindrical water bag 106 by adjusting the liquid supply speed into the liquid passage 105.

[0032] The working principle of the above embodiment is briefly described:

[0033] The liquid supply device of the cleaning system is connected to the liquid passage 105 through a liquid slip ring to ensure that the liquid supply device can normally supply cleaning liquid into the liquid passage 105 when the first power device drives the transmission shaft 102 to rotate. When the cleaning system is in use, the driving mechanism is controlled to move, and the driving mechanism drives the bracket 101 to move on the distributed photovoltaic panel 1, and then the first power device is turned on. The first power device drives the transmission shaft 102 to rotate, and the transmission shaft 102 drives multiple cylindrical water bags 106 to rotate. Each rotating cylindrical water bag 106 cleans the solar cell 103 attached to it through its own outer wall. At the same time, the liquid supply device introduces cleaning liquid into each cylindrical water bag 106 through the liquid passage 105, and the cleaning liquid in the cylindrical water bag 106 is discharged through the liquid outlet 104 and sprayed onto the solar cell 103. Combined with the cleaning of the outer wall of the rotating cylindrical water bag 106, the cleaning effect of the entire cleaning system can be improved. When cleaning light stains such as floating soil, the liquid supply speed of the liquid supply device into the liquid passage 105 is reduced to reduce the diameter and water pressure of each cylindrical water bag 106, thereby reducing the squeezing force exerted by each cylindrical water bag 106 on the solar cell 103, reducing the friction between the outer wall of the cylindrical water bag 106 and the solar cell 103, and reducing the wear of the solar cell 103 by the mud formed between the cylindrical water bag 106 and the solar cell when cleaning the solar cell 103; while when cleaning heavy stains such as bird droppings that are caked on the solar cell 103, During cleaning, first reduce the diameter and water pressure of each cylindrical water bag 106 to clean the loose soil on the edge of the solar cell 103, and then increase the liquid supply speed of the liquid supply device into the liquid passage 105 to increase the diameter and water pressure of each cylindrical water bag 106, thereby increasing the squeezing force applied by each cylindrical water bag 106 on the solar cell 103, and increasing the friction force of the cylindrical water bag 106 on the solar cell 103, thereby improving the cleaning effect of the cylindrical water bag 106 on the compacted stains, so that the compacted stains can be cleaned, which causes damage to the solar cell 103.

[0034] The cleaning system for distributed photovoltaic power generation components of the present invention can adjust the friction force applied to the solar cell 103 according to the severity of the stains when cleaning the solar cell 103, thereby reducing the wear on the solar cell 103 and ensuring the photoelectric conversion rate of the solar cell 103 while ensuring that the solar cell 103 is clean.

[0035] On the basis of the above-mentioned embodiment, in order to be able to perform two-dimensional omnidirectional scrubbing on heavy stains, the cleaning effect of the entire cleaning system on heavy stains can be improved.

[0036] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the transmission shaft 102 is fixedly connected to multiple hydraulic cylinders 201 along its circumference, each hydraulic cylinder 201 is connected to a hydraulic control circuit, and an arc-shaped slide rail 202 is provided on the bracket 101. The arc-shaped slide rail 202 is coaxially arranged with the transmission shaft 102, and a first spring 203 is provided outside the transmission shaft 102. The first spring 203 abuts against the transmission shaft 102, and the first spring 203 is used to apply an elastic force to the transmission shaft 102 in the direction of the arc-shaped slide rail 202. Under the action of the elastic force of the first spring 203, the piston 204 of each hydraulic cylinder 201 abuts against the arc-shaped slide rail 202, and the piston 204 is used to drive the transmission shaft 102 to move axially along the transmission shaft 102.

[0037] When cleaning heavy stains, the first power device drives the transmission shaft 102 to rotate, thereby driving the cylindrical water bag 106 to clean the solar cell 103, and the transmission shaft 102 drives multiple hydraulic cylinders 201 to rotate around the transmission shaft 102 axially. Under the elastic force of the first spring 203, the piston 204 of each hydraulic cylinder 201 abuts against the arc-shaped slide rail 202. By controlling the action of the hydraulic control circuit, the piston 204 of each hydraulic cylinder 201 is controlled to extend or contract, thereby driving the transmission shaft 102 to move along its own axial direction, thereby driving multiple cylindrical water bags 106 to move along the axial direction of the transmission shaft 102, and the rotating cylindrical water bag 106 also moves along the axial direction of its own rotation center, which can perform two-dimensional omnidirectional scrubbing on heavy stains, thereby improving the cleaning effect of the entire cleaning system on heavy stains.

[0038] As a preferred solution, Figure 1-Figure 6As shown, the bracket 101 is provided with a slide groove 301, the length direction of the slide groove 301 is perpendicular to the solar cell 103, a slider 302 is slidably connected in the slide groove 301, the transmission shaft 102 is pivotally connected to the slider 302, and a lifting mechanism 303 is connected to the slider 302, and the lifting mechanism 303 is used to drive the slider 302 to move along the length direction of the slide groove 301. Each cylindrical water bag 106 is provided with a cleaning sheet 304 at both ends, and the outer edge of the cleaning sheet 304 can be inserted into the joint 305 between two adjacent solar cells 103 on the distributed photovoltaic panel 1, and the cleaning sheet 304 is used to clean the joint 305. Since a plurality of solar cells 103 are provided on a whole distributed photovoltaic panel 1, there are joints 305 between the plurality of solar cells 103, and stains are easily accumulated in these joints 305 and are difficult to clean. By setting the cleaning sheet 304, when cleaning the solar cell 103, the lifting device is controlled to rise, the transmission shaft 102 is lifted, and the cylindrical water bag 106 and the cleaning sheet 304 are lifted, so that the cylindrical water bag 106 and the cleaning sheet 304 are separated from the distributed photovoltaic panel 1, and then the liquid supply speed of the liquid supply device into the liquid passage 105 is increased, so as to increase the diameter of the cylindrical water bag 106, until the outer wall of the cylindrical water bag 106 contacts the solar cell 103 of the distributed photovoltaic panel 1 again and applies a predetermined pressure to the solar cell 103. At this time, when the transmission shaft 102 drives each cylindrical water bag 106 to rotate and move along the axial direction of the transmission shaft 102, it can prevent the cleaning sheet 304 from being inserted into the seam 305 of the solar cell 103, hindering the cylindrical water bag 106 from moving along the The axial movement of the transmission shaft 102 ensures the normal operation of the entire device. When cleaning the joints 305 of the solar cell 103, the liquid supply speed of the liquid supply device into the liquid passage 105 is reduced, thereby reducing the diameter of the cylindrical water bag 106 until the diameter of the cylindrical water bag 106 is smaller than the diameter of the cleaning sheet 304, and then the lifting mechanism 303 is controlled to move and drop the transmission shaft 102 to insert the cleaning sheet 304 into the joints 305. At this time, when the transmission shaft 102 drives the cleaning sheet 304 to rotate, the stains in the joints 305 between multiple solar cells 103 can be specially cleaned, thereby improving the cleaning effect of the entire cleaning system on the distributed photovoltaic panel 1, and preventing mud and sand from accumulating in the joints 305 on the distributed photovoltaic panel 1, causing problems such as short circuits of the solar cells 103.

[0039] As a preferred solution, Figure 1 , Figure 3 , Figure 5 and Figure 6As shown, the two ends of the cylindrical water bag 106 are fixedly connected with a slip ring 401, the cleaning sheet 304 is connected to the slip ring 401, and the transmission shaft 102 is also provided with a second spring 402, one end of the second spring 402 is in contact with the slip ring 401, and the second spring 402 is used to apply an elastic force to the slip ring 401 toward the side of the cylindrical water bag 106 connected to the slip ring 401. Under the action of the elastic force of the second spring 402 and the squeezing force of the cylindrical water bag 106, the slip ring 401 can move along the axial direction of the transmission shaft 102. When cleaning the joint 305, the hydraulic pressure in the cylindrical water bag 106 is increased first, and the cylindrical water bag 106 expands, thereby driving the slip ring 401 to move away from the cylindrical water bag 106 connected thereto, thereby reducing the distance between the two cleaning sheets 304 between the two cylindrical water bags 106, so as to ensure that the two cleaning sheets 304 are accurately inserted into the joint 305. When the two cleaning sheets 304 are inserted into the joint 305, the hydraulic pressure in the cylindrical water bag 106 is reduced, and under the elastic force of the second spring 402, the slip ring 401 moves toward the side of the cylindrical water bag 106 connected to it, thereby increasing the distance between the two cleaning sheets 304 until the two cleaning sheets 304 respectively abut against the two side walls of the joint 305. At this time, the two rotating cleaning sheets 304 can clean the silt accumulated in the joint 305 to the maximum extent when cleaning the joint 305, thereby improving the cleaning effect of the entire cleaning system.

[0040] As a preferred solution, Figure 1-Figure 3 As shown, the lifting mechanism 303 includes a cylinder 501 and a lifting piston 502, the cylinder 501 is arranged in a direction perpendicular to the solar cell 103, the lifting piston 502 is slidably connected in the cylinder 501 along the length direction of the cylinder 501, the lifting piston 502 is connected to the slider 302, and the cylinder 501 is connected to the hydraulic control circuit. The hydraulic pressure in the cylinder 501 is controlled by the hydraulic control circuit to control the lifting piston 502 to move in a direction perpendicular to the solar cell 103, thereby driving the slider 302 to slide in the slide 301, thereby driving the transmission shaft 102 to rise and fall, thereby accurately controlling the lifting mechanism 303 to drive the cylindrical water bag 106 to rise and fall.

[0041] As a preferred solution, Figure 1As shown, a hydraulic sensor 6 is provided between the cylinder 501 and the hydraulic control circuit, and the hydraulic sensor 6 is used to detect the real-time hydraulic value in the cylinder 501. The hydraulic sensor 6 is electrically connected to a controller, and the controller is electrically connected to the hydraulic control circuit. The maximum hydraulic value is preset in the controller, and the controller compares the real-time hydraulic value with the maximum hydraulic value. When the real-time hydraulic value is greater than the maximum hydraulic value, the controller controls the hydraulic control circuit to operate so that the real-time hydraulic value in the cylinder 501 is less than the maximum hydraulic value. By setting the hydraulic sensor 6, the hydraulic sensor 6 is used to detect the real-time hydraulic value in the cylinder 501. According to the real-time hydraulic value in the cylinder 501, the magnitude of the extrusion force applied by the cylindrical water bag 106 to the solar cell 103 can be known, thereby realizing the magnitude of the friction force applied to the solar cell 103. The controller controls the hydraulic control circuit according to the real-time hydraulic value in the cylinder 501, so that the real-time hydraulic value in the cylinder 501 is less than the maximum hydraulic value, thereby preventing the cylindrical water bag 106 from applying too much extrusion force to the solar cell 103, causing damage to the solar cell 103.

[0042] As a preferred solution, Figure 1-Figure 5 As shown, the driving mechanism includes a left driving part 701 and a right driving part 702, and the left driving part 701 and the right driving part 702 are respectively arranged on the frames on both sides of the distributed photovoltaic panel 1. The left driving part 701 and the right driving part 702 have the same structure, and both include a C-shaped frame 703, a clamping wheel 704 and a second power device 705. The C-shaped frame 703 is fixedly connected to the bracket 101, and the clamping wheel 704 is pivotally connected to the C-shaped frame 703. The axial direction of the clamping wheel 704 is perpendicular to the solar cell 103, and the clamping wheel 704 is clamped on the frame of the distributed photovoltaic panel 1, and the second power device 705 is gear-engaged with the clamping wheel 704. The second power device 705 drives the clamping wheel 704 to rotate, and the clamping wheel 704 rolls on the frame on both sides of the distributed photovoltaic panel 1, thereby driving the C-shaped frame 703 to move along the length direction of the frame, and the C-shaped frame 703 of the left driving part 701 and the C-shaped frame 703 of the right driving part 702 jointly drive the bracket 101 to move on the distributed photovoltaic panel 1, thereby improving the stability of the movement of the entire cleaning system on the distributed photovoltaic panel 1, thereby ensuring that the cylindrical water bag 106 is always in contact with the solar cell 103, thereby ensuring the cleaning effect of the entire cleaning system.

[0043] As a preferred solution, Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, both ends of the clamping wheel 704 are provided with limit blocks 8, and the limit blocks 8 at both ends of the clamping wheel 704 are respectively abutted against the two sides of the frame of the distributed photovoltaic panel 1, and the limit blocks 8 are used to limit the axial movement of the clamping wheel 704 along the clamping wheel 704. By setting the limit blocks, the limit blocks at both ends of the clamping wheel 704 are used to limit the axial movement of the clamping wheel 704 along the clamping wheel 704, which can ensure that the positional relationship between the bracket 101 and the solar cell panel is fixed, thereby further ensuring that the outer wall of the cylindrical water bag 106 can always fit with the solar cell 103, and ensuring the cleaning effect of the entire cleaning system.

[0044] As a preferred solution, Figure 2 and Figure 5 As shown, a ball 901 is provided on the piston 204 of the hydraulic cylinder 201, and an arc-shaped slideway 902 is provided on the arc-shaped slideway 202. The arc-shaped slideway 902 is coaxially arranged with the transmission shaft 102. Under the elastic force of the first spring 203, the ball 901 on the piston 204 abuts against the arc-shaped slideway 902. By providing a roller, the ball 901 slides in the arc-shaped slideway 902 on the arc-shaped slideway 202, which can reduce the resistance of the transmission shaft 102 when rotating, reduce the wear of the arc-shaped slideway 202, and improve the service life of the cleaning system.

[0045] As a preferred solution, Figure 1 As shown, the cleaning sheet 304 is detachably connected to the slip ring 401. The cleaning sheet 304 and the slip ring 401 are detachably connected, which can facilitate the maintenance and replacement of the cleaning sheet 304.

[0046] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A cleaning system for distributed photovoltaic power generation components, characterized in that: include: Bracket (101); A driving mechanism connected to the support (101), the driving mechanism being used to drive the support (101) to move on the distributed photovoltaic panel (1); A transmission shaft (102) is pivotally connected to the support (101), the transmission shaft (102) is arranged in parallel with the solar cell (103) of the distributed photovoltaic panel (1), the transmission shaft (102) is connected to a first power device, and a liquid passage (105) is provided in the transmission shaft (102) along the axial direction; A plurality of cylindrical water bags (106) are arranged along the axial direction of the transmission shaft (102); the plurality of cylindrical water bags (106) are arranged outside the transmission shaft (102); each cylindrical water bag (106) is in communication with the liquid passage (105); a plurality of liquid outlets (104) are provided on the side wall of each cylindrical water bag (106); the liquid outlets (104) are used to spray liquid onto the solar cell (103); the outer wall of each cylindrical water bag (106) is in contact with a solar cell (103) of the distributed photovoltaic panel (1); and the outer wall of the cylindrical water bag (106) is used to clean the solar cell (103); a liquid supply device, connected to the liquid passage (105), the liquid supply device adjusting the diameter and water pressure of each cylindrical water bag (106) by adjusting the liquid supply speed into the liquid passage (105); When cleaning light stains, the liquid supply speed of the liquid supply device into the liquid passage (105) is reduced to reduce the diameter and water pressure of each cylindrical water bag (106), thereby reducing the squeezing force applied by each cylindrical water bag (106) to the solar cell (103), reducing the friction between the outer wall of the cylindrical water bag (106) and the solar cell (103), and reducing the wear of the solar cell (103) by the mud formed between the cylindrical water bag (106) and the solar cell when cleaning the solar cell (103); and When cleaning heavy dirt on the solar cell (103), the diameter and water pressure of each cylindrical water bag (106) are first reduced to clean the floating dirt on the surface of the solar cell (103), and then the liquid supply speed of the liquid supply device into the liquid passage (105) is increased to increase the diameter and water pressure of each cylindrical water bag (106), thereby increasing the squeezing force applied by each cylindrical water bag (106) to the solar cell (103) and improving the friction force of the cylindrical water bag (106) on the solar cell (103), so as to clean the hardened heavy dirt.

2. The cleaning system for distributed photovoltaic power generation components according to claim 1, characterized in that: The transmission shaft (102) is fixedly connected to a plurality of hydraulic cylinders (201) along its circumference, each hydraulic cylinder (201) is connected to a hydraulic control circuit, a circular arc slide rail (202) is provided on the bracket (101), the circular arc slide rail (202) is coaxially arranged with the transmission shaft (102), a first spring (203) is provided outside the transmission shaft (102), the first spring (203) is in contact with the transmission shaft (102), the first spring (203) is used to apply an elastic force to the transmission shaft (102) in a direction toward the circular arc slide rail (202), under the action of the elastic force of the first spring (203), the piston (204) of each hydraulic cylinder (201) is in contact with the circular arc slide rail (202), and the piston (204) is used to drive the transmission shaft (102) to move along the axial direction of the transmission shaft (102).

3. The cleaning system for distributed photovoltaic power generation components according to claim 2, characterized in that: The support (101) is provided with a slide groove (301), the length direction of the slide groove (301) is perpendicular to the solar cell (103), a slider (302) is slidably connected in the slide groove (301), the transmission shaft (102) is pivotally connected to the slider (302), a lifting mechanism (303) is connected to the slider (302), the lifting mechanism (303) is used to drive the slider (302) to move along the length direction of the slide groove (301), each cylindrical water bag (106) is provided with a cleaning sheet (304) at both ends, the outer edge of the cleaning sheet (304) can be inserted into the joint (305) between two adjacent solar cells (103) on the distributed photovoltaic panel (1), and the cleaning sheet (304) is used to clean the joint (305).

4. The cleaning system for distributed photovoltaic power generation components according to claim 3, characterized in that: Slip rings (401) are fixedly connected to both ends of the cylindrical water bag (106), the cleaning sheet (304) is connected to the slip ring (401), and a second spring (402) is further provided outside the transmission shaft (102), one end of the second spring (402) is in contact with the slip ring (401), and the second spring (402) is used to apply an elastic force to the slip ring (401) toward one side of the cylindrical water bag (106) connected to the slip ring (401), and under the action of the elastic force of the second spring (402) and the squeezing force of the cylindrical water bag (106), the slip ring (401) can move axially along the transmission shaft (102).

5. The cleaning system for distributed photovoltaic power generation components according to claim 3, characterized in that: The lifting mechanism (303) comprises a cylinder body (501) and a lifting piston (502); the cylinder body (501) is arranged in a direction perpendicular to the solar cell sheet (103); the lifting piston (502) is slidably connected in the cylinder body (501) along the length direction of the cylinder body (501); the lifting piston (502) is connected to the slider (302); and the cylinder body (501) is connected to the hydraulic control circuit.

6. The cleaning system for distributed photovoltaic power generation components according to claim 5, characterized in that: A hydraulic sensor (6) is provided between the cylinder body (501) and the hydraulic control circuit. The hydraulic sensor (6) is used to detect a real-time hydraulic pressure value in the cylinder body (501). The hydraulic sensor (6) is electrically connected to a controller. The controller is electrically connected to the hydraulic control circuit. A maximum hydraulic pressure value is preset in the controller. The controller compares the real-time hydraulic pressure value with the maximum hydraulic pressure value. When the real-time hydraulic pressure value is greater than the maximum hydraulic pressure value, the controller controls the hydraulic control circuit to operate so that the real-time hydraulic pressure value in the cylinder body (501) is less than the maximum hydraulic pressure value.

7. The cleaning system for distributed photovoltaic power generation components according to claim 1, characterized in that: The driving mechanism comprises a left driving part (701) and a right driving part (702), the left driving part (701) and the right driving part (702) being respectively arranged on the frames on both sides of the distributed photovoltaic panel (1), the left driving part (701) and the right driving part (702) having the same structure, both comprising a C-shaped frame (703), a clamping wheel (704) and a second power device (705), the C-shaped frame (703) being fixedly connected to the bracket (101), the clamping wheel (704) being pivotally connected to the C-shaped frame (703), the axial direction of the clamping wheel (704) being perpendicular to the solar cell sheet (103), the clamping wheel (704) being clamped on the frame of the distributed photovoltaic panel (1), and the second power device (705) being gear-engaged with the clamping wheel (704).

8. The cleaning system for distributed photovoltaic power generation components according to claim 7, characterized in that: Both ends of the clamping wheel (704) are provided with position-limiting blocks (8), the position-limiting blocks (8) at both ends of the clamping wheel (704) respectively abut against two sides of the frame of the distributed photovoltaic panel (1), and the position-limiting blocks (8) are used to limit the axial movement of the clamping wheel (704) along the clamping wheel (704).

9. The cleaning system for distributed photovoltaic power generation components according to claim 2, characterized in that: A ball bearing (901) is provided on the piston (204) of the hydraulic cylinder (201), and an arc-shaped slide groove (902) is provided on the arc-shaped slide rail (202). The arc-shaped slide groove (902) is coaxially arranged with the transmission shaft (102). Under the action of the elastic force of the first spring (203), the ball bearing (901) on the piston (204) abuts against the arc-shaped slide groove (902).

10. The cleaning system for distributed photovoltaic power generation components according to claim 3, characterized in that: The cleaning sheet (304) is detachably connected to the slip ring (401).

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