Cleaning device based on single-axis photovoltaic tracking system

Abstract

The invention provides a cleaning device based on a single-axis photovoltaic tracking system. The cleaning device comprises a machine base, a second driving mechanism, a cleaning cover, a third driving mechanism, a plurality of cleaning mechanisms and a control module. Wherein the machine base is movably arranged on the tracking single shaft, and the second driving mechanism is in transmission connection with the machine base; the sweeping cover is movably arranged on the machine base, the third driving mechanism is in transmission connection with the sweeping cover, and the sweeping mechanisms are arranged on the sweeping cover. The control module is used for controlling the second driving mechanism to drive the machine base to move to the target photovoltaic panel, controlling the third driving mechanism to drive the sweeping cover to cover the target photovoltaic panel, and controlling the multiple sweeping mechanisms to sweep the corresponding areas of the surface of the target photovoltaic panel. According to the cleaning device based on the single-axis photovoltaic tracking system, effective cleaning of all photovoltaic panels in the single-axis photovoltaic tracking system can be achieved, and then efficient power generation of the system is guaranteed.

Description

Technical Field

[0001] This disclosure relates to the field of photovoltaic cleaning technology, and in particular to a cleaning device based on a single-axis photovoltaic tracking system. Background Technology

[0002] During the operation of photovoltaic modules, dust easily accumulates on the surface of the photovoltaic panels, leading to a reduction in photovoltaic efficiency. Therefore, it is necessary to clean the surface of the photovoltaic panels. However, for photovoltaic tracking systems with multiple photovoltaic panels spaced apart on a single axis, due to the distributed and tilted arrangement, traditional cleaning devices are difficult to effectively clean multiple photovoltaic panels, thus failing to meet the system's high-efficiency power generation requirements. Summary of the Invention

[0003] This disclosure aims to at least partially address one of the technical problems in the related art.

[0004] Therefore, the purpose of this disclosure is to provide a cleaning device based on a single-axis photovoltaic tracking system.

[0005] To achieve the above objectives, this disclosure provides a cleaning device based on a single-axis photovoltaic tracking system. The single-axis photovoltaic tracking system includes: a tracking shaft, a first drive mechanism, and multiple photovoltaic panels. The tracking shaft is rotatably arranged, and the first drive mechanism drives the tracking shaft to rotate. The photovoltaic panels are inclinedly arranged on the tracking shaft, and the multiple photovoltaic panels are distributed at intervals along the axial direction of the tracking shaft. The cleaning device includes: a base, a second drive mechanism, a cleaning cover, a third drive mechanism, multiple cleaning mechanisms, and a control module. The base is movably disposed on the tracking shaft, and the second drive mechanism is driveably connected to the base. The cleaning cover is movably disposed on the base, and the third drive mechanism is drively connected to the cleaning cover. The multiple cleaning mechanisms are respectively disposed on the cleaning cover. The control module controls the second drive mechanism to drive the base to the target photovoltaic panel, controls the third drive mechanism to drive the cleaning cover to cover the target photovoltaic panel, and controls the multiple cleaning mechanisms to clean corresponding areas on the surface of the target photovoltaic panel.

[0006] Optionally, the cleaning mechanism includes: a cleaning drive component and a flexible cleaning disc; wherein, the flexible cleaning disc is rotatably disposed on the side of the cleaning cover near the target photovoltaic panel, and the cleaning drive component is disposed on the cleaning cover and is tractively connected to the flexible cleaning disc; the signal output terminal of the control module is connected to the control input terminal of the cleaning drive component, and the control module is used to control the cleaning drive component to drive the flexible cleaning disc to rotate when the cleaning cover is closed on the target photovoltaic panel, so that the multiple flexible cleaning discs respectively clean the corresponding areas on the surface of the target photovoltaic panel.

[0007] Optionally, multiple flexible cleaning discs are distributed at intervals along a first direction and a second direction on the surface of the target photovoltaic panel to form a cleaning array. Adjacent flexible cleaning discs in the first direction rotate in the same direction, while adjacent flexible cleaning discs in the second direction rotate in opposite directions to form a dust collection channel. The cleaning device further includes multiple suction mechanisms, the suction ends of which are spaced apart on the flexible cleaning discs along the second direction, and the suction ends of the suction mechanisms and the dust outlet ends of the dust collection channels are arranged opposite to each other. The signal output terminal of the control module is connected to the control input terminal of the suction mechanism, and the control module is used to control the suction mechanism to collect dust in the dust collection channel under negative pressure when the cleaning cover is closed on the target photovoltaic panel.

[0008] Optionally, the dust collection mechanism includes: multiple dust collection hoods, multiple booster heads, a negative pressure dust collection box, and an exhaust fan; wherein, the multiple dust collection hoods are respectively disposed at the dust outlet end of the dust collection channel, and the multiple booster heads are respectively disposed at the air inlet end of the dust collection channel; the negative pressure dust collection box is disposed on the base, the air inlet end of the negative pressure dust collection box is respectively connected to the multiple dust collection hoods, the air inlet end of the exhaust fan is connected to the air outlet end of the negative pressure dust collection box, and the air outlet end of the exhaust fan is respectively connected to the multiple booster heads; the signal output terminal of the control module is connected to the control input terminal of the exhaust fan, and the control module is used to control the exhaust fan to open when the cleaning hood is closed on the target photovoltaic panel.

[0009] Optionally, the cleaning device further includes a sealing mechanism, which includes a first ring plate, a sealing drive, a folding cover, and multiple pressure detection units. The first ring plate is movably arranged and distributed circumferentially along the cleaning cover, and the sealing drive is disposed on the cleaning cover and drivenly connected to the first ring plate. The folding cover is disposed between the first ring plate and the cleaning cover, and the multiple cleaning mechanisms are respectively located inside the folding cover. The pressure detection units are disposed on the side of the first ring plate away from the cleaning cover, and the multiple pressure detection units are spaced apart circumferentially along the first ring plate. The pressure detection units are used to detect the pressure between the first ring plate and the target photovoltaic panel. The signal input terminal of the control module is connected to the signal output terminal of the pressure detection unit, and the signal output terminal of the control module is connected to the control input terminal of the sealing drive. The control module is used to control the sealing drive according to the pressure between the first ring plate and the target photovoltaic panel when the cleaning cover is closed on the target photovoltaic panel, so as to drive the first ring plate to adhere to the surface of the target photovoltaic panel at a preset pressure.

[0010] Optionally, the sealing mechanism further includes: a second ring plate and a plurality of elastic elements; wherein the second ring plate is movably disposed on the side of the first ring plate away from the cleaning cover, and the plurality of elastic elements are disposed between the second ring plate and the first ring plate, and the pressure detection unit is disposed on the side of the second ring plate away from the first ring plate.

[0011] Optionally, the cleaning device further includes: a support rail, which is disposed on one side of the tracking shaft and parallel to the axial direction of the tracking shaft in its length direction; the base is slidably disposed on the support rail in its length direction; wherein, the second drive mechanism is disposed on the base and is tractively connected to the support rail, and the second drive mechanism is used to drive the base to move along the axial direction of the tracking shaft to the target photovoltaic panel.

[0012] Optionally, the cleaning cover is slidably mounted on the base along the direction from the support rail to the tracking axis; wherein, the third drive mechanism is mounted on the base and is convexly connected to the cleaning cover, the third drive mechanism being used to drive the cleaning cover to move along the direction from the support rail to the tracking axis to cover the target photovoltaic panel, and to drive the cleaning cover to move along the direction from the tracking axis to the support rail to move away from the target photovoltaic panel.

[0013] Optionally, the cleaning device further includes a cleaning brush, which is disposed on the base and abuts against the support rail.

[0014] Optionally, the cleaning device further includes: a power module and a battery; wherein the power module is disposed at one end of the tracking shaft, and the power input terminal of the power module is connected to the power output terminal of the photovoltaic panel; the battery is disposed inside the base, and the power output terminal of the battery is connected to the power input terminal of the second drive mechanism, the power input terminal of the third drive mechanism, and the power input terminal of the cleaning mechanism respectively; the charging terminal of the battery and the power supply terminal of the power module are arranged opposite to each other, and the control module is used to control the second drive mechanism to drive the base to move to the power module, so that the charging terminal of the battery and the power supply terminal of the power module are connected and turned on.

[0015] The technical solution provided in this disclosure may include the following beneficial effects: The control module controls the second drive mechanism to move the base to the target photovoltaic panel. Then, it controls the third drive mechanism to close the cleaning cover on the target photovoltaic panel. Finally, it controls multiple cleaning mechanisms to clean the corresponding areas on the surface of the target photovoltaic panel, thus achieving cleaning. Therefore, through the movement of the base at each photovoltaic panel and the coordinated actions of the third drive mechanism and the cleaning mechanisms, effective cleaning of each photovoltaic panel in the single-axis photovoltaic tracking system can be achieved, thereby ensuring the system's high-efficiency power generation.

[0016] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the structure of a single-axis photovoltaic tracking system according to an embodiment of the present disclosure; Figure 2 This is a schematic diagram of the structure of a cleaning device based on a single-axis photovoltaic tracking system according to an embodiment of this disclosure; Figure 3 This is a schematic diagram of the cleaning mechanism in a cleaning device based on a single-axis photovoltaic tracking system according to an embodiment of this disclosure; Figure 4 This is a schematic diagram of the sealing mechanism in a cleaning device based on a single-axis photovoltaic tracking system according to an embodiment of this disclosure; As shown in the figure: 1. Base, 2. Second drive mechanism, 3. Cleaning cover, 4. Third drive mechanism; 5. Sweeping mechanism; 51. Flexible sweeping disc; 52. Dust collection channel; 6. Dust collection mechanism; 61. Dust collection hood; 62. Pressure booster head; 63. Negative pressure dust collection box; 64. Exhaust fan; 7. Sealing mechanism; 71. First ring plate; 72. Sealing drive component; 73. Folding cover; 74. Second ring plate; 75. Elastic component; 8. Support rails; 100. Tracking shaft; 200. First drive mechanism; 300. Photovoltaic panel. Detailed Implementation

[0018] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0019] like Figure 1 As shown, the single-axis photovoltaic tracking system includes: a tracking shaft 100, a first drive mechanism 200, and multiple photovoltaic panels 300. The tracking shaft 100 is rotatably arranged, and the first drive mechanism 200 is used to drive the tracking shaft 100 to rotate. The photovoltaic panels 300 are inclinedly arranged on the tracking shaft 100, and the multiple photovoltaic panels 300 are distributed at intervals along the axial direction of the tracking shaft 100.

[0020] Understandably, the first drive mechanism 200 drives the tracking shaft 100 to rotate so that the photovoltaic panel 300 on the tracking shaft 100 can track the sun, ensuring that sunlight shines directly on the photovoltaic panel 300, thereby improving the photovoltaic power generation efficiency.

[0021] The photovoltaic panel 300 is inclinedly arranged on the tracking shaft 100. Specifically, the axis of the tracking shaft 100 is arranged in the north-south direction, and the length direction of the photovoltaic panel 300 is perpendicular to the axis of the tracking shaft 100. The width direction of the photovoltaic panel 300 and the axis of the tracking shaft 100 form a preset angle.

[0022] The first drive mechanism 200 can be a motor drive system based on a drive motor, a reducer, and other facilities, with power coming from the electricity generated by the photovoltaic panel 300.

[0023] Based on the distributed tilted arrangement of photovoltaic panels 300 on the tracking shaft 100, traditional cleaning devices cannot effectively clean multiple photovoltaic panels 300, making it difficult to meet the system's high-efficiency power generation requirements.

[0024] like Figure 2 As shown in the figure, this disclosure proposes a cleaning device based on a single-axis photovoltaic tracking system, including: a base 1, a second drive mechanism 2, a cleaning cover 3, a third drive mechanism 4, multiple cleaning mechanisms 5, and a control module (not shown in the figure).

[0025] The base 1 is movably mounted on the tracking single axis, and the second drive mechanism 2 is connected to the base 1 via transmission. The cleaning cover 3 is movably mounted on the base 1, and the third drive mechanism 4 is connected to the cleaning cover 3 via transmission. Multiple cleaning mechanisms 5 are respectively mounted on the cleaning cover 3. The control module is used to control the second drive mechanism 2 to drive the base 1 to move to the target photovoltaic panel 300, control the third drive mechanism 4 to drive the cleaning cover 3 to cover the target photovoltaic panel 300, and control the multiple cleaning mechanisms 5 to clean the corresponding areas on the surface of the target photovoltaic panel 300.

[0026] Understandably, the control module controls the second drive mechanism 2 to move the base 1 to the target photovoltaic panel 300, then controls the third drive mechanism 4 to drive the cleaning cover 3 to close on the target photovoltaic panel 300, and finally controls multiple cleaning mechanisms 5 to clean the corresponding areas on the surface of the target photovoltaic panel 300, thereby achieving the cleaning of the target photovoltaic panel 300. Thus, through the movement of the base 1 at each photovoltaic panel 300, and the coordinated actions of the third drive mechanism 4 and the cleaning mechanisms 5, effective cleaning of each photovoltaic panel 300 in the single-axis photovoltaic tracking system can be achieved, thereby ensuring the system's high-efficiency power generation.

[0027] It should be noted that the base 1 is used to support the second drive mechanism 2, the cleaning cover 3, the third drive mechanism 4, etc. The specific type of the base 1 can be set according to actual needs and there is no restriction. For example, the base 1 is a seat structure and is made of lightweight materials, which ensures the support capacity while having a light weight, thereby reducing the impact on the single-axis photovoltaic tracking system.

[0028] The second drive mechanism 2 is used to drive the base 1 to move between multiple photovoltaic panels 300, and the third drive mechanism 4 is used to drive the cleaning cover 3 to move closer to the photovoltaic panel 300 (during cleaning) or away from the photovoltaic panel 300 (during movement). The specific types of the second drive mechanism 2 and the third drive mechanism 4 can be set according to actual needs and there are no restrictions on them.

[0029] The cleaning cover 3 is used to support multiple cleaning mechanisms 5. The specific type of the cleaning cover 3 can be set according to actual needs and there is no restriction. For example, the cleaning cover 3 is a cover structure, and multiple cleaning mechanisms 5 are arranged inside the cover. Under the drive of the third drive mechanism 4, the cleaning cover 3 can effectively cover the photovoltaic panel 300 or move away from the photovoltaic panel 300.

[0030] The cleaning mechanism 5 is used to clean the surface of the photovoltaic panel 300. The specific type of the cleaning mechanism 5 can be set according to actual needs and there are no restrictions on it.

[0031] like Figure 3As shown, in some embodiments, the cleaning mechanism 5 includes a cleaning drive (not shown) and a flexible cleaning disc 51. The flexible cleaning disc 51 is rotatably disposed on the side of the cleaning cover 3 near the target photovoltaic panel 300. The cleaning drive is disposed on the cleaning cover 3 and is connected to the flexible cleaning disc 51 via a transmission connection. The signal output terminal of the control module is connected to the control input terminal of the cleaning drive. The control module is used to control the cleaning drive to drive the flexible cleaning disc 51 to rotate when the cleaning cover 3 is closed on the target photovoltaic panel 300, so that multiple flexible cleaning discs 51 respectively clean the corresponding areas on the surface of the target photovoltaic panel 300.

[0032] Understandably, since the flexible cleaning disc 51 is rotatably mounted on the side of the cleaning cover 3 close to the target photovoltaic panel 300, and the cleaning drive is mounted on the cleaning cover 3 and connected to the flexible cleaning disc 51, the signal output terminal of the control module is connected to the control input terminal of the cleaning drive. This allows the control module to control the cleaning drive to drive the flexible cleaning disc 51 to rotate when the cleaning cover 3 is closed on the target photovoltaic panel 300, thereby using multiple flexible cleaning discs 51 to clean the surface of the target photovoltaic panel 300, thus ensuring the high-efficiency power generation of the photovoltaic panel 300.

[0033] It should be noted that the cleaning drive component is used to drive the flexible cleaning disc 51 to rotate, thereby utilizing the friction between the flexible cleaning disc 51 and the surface of the photovoltaic panel 300 to clean the photovoltaic panel 300. The specific type of the cleaning drive component can be set according to actual needs and is not limited thereto. For example, the cleaning drive component can be a motor drive system based on a drive motor, reducer, and other facilities. Furthermore, for the motor drive system, multiple gears, belts, and other transmission components can be used to achieve synchronous driving of multiple flexible cleaning discs 51.

[0034] The flexible cleaning disc 51 is used to clean the surface dust of the photovoltaic panel 300. The specific type of the flexible cleaning disc 51 can be set according to actual needs and there is no limitation. For example, the flexible cleaning disc 51 is a disc-shaped structure, which is arranged inside the cleaning cover 3 by means of a rotating shaft. Multiple flexible brushes are arranged on it. When the cleaning cover 3 is closed on the target photovoltaic panel 300, the brushes on the flexible cleaning disc 51 abut against the surface of the photovoltaic panel 300.

[0035] like Figure 3As shown, in some embodiments, multiple flexible cleaning discs 51 are spaced apart along a first direction and a second direction on the surface of the target photovoltaic panel 300 to form a cleaning array. Adjacent flexible cleaning discs 51 in the first direction rotate in the same direction, while adjacent flexible cleaning discs 51 in the second direction rotate in opposite directions to form a dust collection channel 52. The cleaning device also includes multiple suction mechanisms 6, with their suction ends spaced apart along the second direction on the flexible cleaning discs 51. The suction ends of the suction mechanisms 6 and the dust outlet ends of the dust collection channel 52 are positioned opposite each other. The signal output terminal of the control module is connected to the control input terminal of the suction mechanism 6, and the control module is used to control the suction mechanism 6 to collect dust from the dust collection channel 52 under negative pressure when the cleaning cover 3 is placed over the target photovoltaic panel 300.

[0036] It is understood that multiple flexible cleaning discs 51 are arranged in an array, and adjacent flexible cleaning discs 51 rotate in the same direction in the first direction, while adjacent flexible cleaning discs 51 rotate in opposite directions in the second direction. Thus, when the cleaning drive drives the flexible cleaning discs 51 to rotate, the dust on the surface of the photovoltaic panel 300 can be orderly discharged into the dust collection channels 52 that are spaced apart along the second direction. Furthermore, since the suction end of the suction mechanism 6 and the dust outlet end of the dust collection channel 52 are arranged opposite to each other, and the signal output end of the control module is connected to the control input end of the suction mechanism 6, when the cleaning cover 3 is placed on the target photovoltaic panel 300, the control module can control the suction mechanism 6 to collect the dust in the dust collection channel 52 under negative pressure, thereby achieving efficient cleaning of the surface of the photovoltaic panel 300 in conjunction with the flexible cleaning discs 51.

[0037] It should be noted that cleaning the surface of the photovoltaic panel 300 using cleaning components such as the flexible cleaning disc 51 will generate a large amount of dust. The dust falling on the photovoltaic panel 300 during or after cleaning will reduce the cleaning quality and efficiency. In this embodiment, the dust collection by the dust collection mechanism 6 can prevent the dust swept by the flexible cleaning disc 51 from falling back onto the photovoltaic panel 300. This not only improves the cleaning quality and efficiency but also ensures a good power generation environment on site.

[0038] The first and second directions can be set according to actual needs, and there are no restrictions on this. For example, the first and second directions can be distributed perpendicularly.

[0039] The adjacent flexible cleaning discs 51 rotate in the same direction in the first direction, and the adjacent flexible cleaning discs 51 rotate in opposite directions in the second direction. As a result, the flexible cleaning discs 51 in each row in the second direction can use the centrifugal force during the rotation process to throw the dust swept off the surface of the photovoltaic panel 300 into each dust collection channel 52, thereby effectively collecting the dust in conjunction with the dust collection mechanism 6.

[0040] The specific type of the vacuuming mechanism 6 can be set according to actual needs, and there are no restrictions on it.

[0041] like Figure 3 As shown, in some embodiments, the dust collection mechanism 6 includes: multiple dust collection hoods 61, multiple booster heads 62, a negative pressure dust collection box 63, and an exhaust fan 64. The multiple dust collection hoods 61 are respectively disposed at the dust outlet of the dust collection channel 52, and the multiple booster heads 62 are respectively disposed at the air inlet of the dust collection channel 52. The negative pressure dust collection box 63 is disposed on the base 1, and the air inlet of the negative pressure dust collection box 63 is connected to the multiple dust collection hoods 61. The air inlet of the exhaust fan 64 is connected to the air outlet of the negative pressure dust collection box 63, and the air outlet of the exhaust fan 64 is connected to the multiple booster heads 62. The signal output terminal of the control module is connected to the control input terminal of the exhaust fan 64, and the control module is used to control the exhaust fan 64 to open when the cleaning cover 3 is closed on the target photovoltaic panel 300.

[0042] Understandably, since the air inlet of the negative pressure dust collection box 63 is connected to multiple dust collection hoods 61, and the air inlet of the induced draft fan 64 is connected to the air outlet of the negative pressure dust collection box 63, and the air outlet of the induced draft fan 64 is connected to multiple booster heads 62, and the signal output of the control module is connected to the control input of the induced draft fan 64, the control module can control the induced draft fan 64 to open when the cleaning hood 3 is closed on the target photovoltaic panel 300, thereby realizing negative pressure dust collection of multiple dust collection hoods 61 and positive pressure air blowing of multiple booster heads 62, thus achieving efficient dust collection of the dust collection channel 52.

[0043] It should be noted that the negative pressure dust collection box 63 is used to collect and store the dust discharged from the dust collection channel 52. The specific type of the negative pressure dust collection box 63 can be set according to actual needs and is not limited thereto. For example, the negative pressure dust collection box 63 is a box structure, and a dust removal filter is arranged inside the negative pressure dust collection box 63. The negative pressure generated by the air duct 64 draws the dust into the negative pressure dust collection box 63, and the dust removal filter isolates the dust inside the negative pressure dust collection box 63. In addition, distance sensors, weight sensors, etc. can be arranged inside the negative pressure dust collection box 63 to perform centralized cleaning when there is a lot of dust in the negative pressure dust collection box 63. At the same time, the composition analysis of the collected dust can also be performed to further optimize the cleaning pressure and cleaning speed of the flexible cleaning disc 51.

[0044] The exhaust fan 64 is used to generate negative pressure in the negative pressure dust collection box 63 and to provide positive pressure to the booster head 62, which not only improves the cleaning effect but also enables facility reuse and reduces costs. The specific type of exhaust fan 64 can be set according to actual needs and is not limited thereto. For example, the exhaust fan 64 can be a fan.

[0045] The dust hood 61 is positioned directly opposite the dust outlet of the dust collection channel 52 to collect the dust discharged from the dust collection channel 52. The specific type of the dust hood 61 can be set according to actual needs and is not limited thereto. For example, the dust hood 61 is a cover structure and the inlet size of the dust hood 61 is larger than the dust outlet of the dust collection channel 52.

[0046] The booster head 62 is used to face the air inlet of the dust collection channel 52 to enhance the air velocity in the dust collection channel 52 and ensure that the dust flows efficiently to the dust collection hood 61. The specific type of booster head 62 can be set according to actual needs and there are no restrictions on it.

[0047] like Figure 4 As shown, in some embodiments, the cleaning device further includes a sealing mechanism 7, which includes a first ring plate 71, a sealing drive 72, a folding cover 73, and a plurality of pressure detection units (not shown in the figure).

[0048] The first ring plate 71 is distributed and movable along the circumference of the cleaning cover 3, and the sealing drive 72 is disposed on the cleaning cover 3 and connected to the first ring plate 71. The folding cover 73 is disposed between the first ring plate 71 and the cleaning cover 3. Multiple cleaning mechanisms 5 are respectively located inside the folding cover 73. The pressure detection unit is disposed on the side of the first ring plate 71 away from the cleaning cover 3, and the multiple pressure detection units are distributed at intervals along the circumference of the first ring plate 71. The pressure detection unit is used to detect the pressure between the first ring plate 71 and the target photovoltaic panel 300. The signal input terminal of the control module is connected to the signal output terminal of the pressure detection unit, and the signal output terminal of the control module is connected to the control input terminal of the sealing drive 72. The control module is used to control the sealing drive 72 according to the pressure between the first ring plate 71 and the target photovoltaic panel 300 when the cleaning cover 3 is closed on the target photovoltaic panel 300, so as to drive the first ring plate 71 to abut against the surface of the target photovoltaic panel 300 with a preset pressure.

[0049] It is understandable that, since the first ring plate 71 is distributed and movable along the circumference of the cleaning cover 3, and the sealing drive 72 is set on the cleaning cover 3 and connected to the first ring plate 71 in a transmission manner, and the folding cover 73 is set between the first ring plate 71 and the cleaning cover 3, when the sealing drive 72 drives the first ring plate 71 to abut against the surface of the target photovoltaic panel 300, the unfolding of the folding cover 73 can achieve a sealing around the perimeter, thereby achieving a relatively enclosed cleaning space on the surface of the photovoltaic panel 300, thereby reducing the spread of dust and ensuring high cleaning efficiency and cleaning quality.

[0050] Furthermore, since the pressure detection unit is located on the side of the first ring plate 71 away from the cleaning cover 3, and the signal input terminal of the control module is connected to the signal output terminal of the pressure detection unit, and the signal output terminal of the control module is connected to the control input terminal of the sealing drive 72, when the cleaning cover 3 is closed on the target photovoltaic panel 300, the control module can control the sealing drive 72 according to the pressure between the first ring plate 71 and the target photovoltaic panel 300, so as to drive the first ring plate 71 to adhere to the periphery of the target photovoltaic panel 300 with a preset pressure, thereby achieving a sealed space while avoiding excessive pressure on the photovoltaic panel 300.

[0051] It should be noted that the first ring plate 71 is used to abut against the surface of the target photovoltaic panel 300 to cooperate with the folding cover 73 to achieve a relatively closed cleaning space on the surface of the photovoltaic panel 300. The specific type of the first ring plate 71 can be set according to actual needs and there are no restrictions on it.

[0052] The sealing drive component 72 is used to drive the movement of the first ring plate 71, so as to make the first ring plate 71 adhere to the surface of the photovoltaic panel 300, or to make the first ring plate 71 move away from the surface of the photovoltaic panel 300 (when cleaning is finished). The specific type of the sealing drive component 72 can be set according to actual needs and is not limited thereto. For example, the sealing drive component 72 can be a motor drive system based on a drive motor (telescopic motor) or similar facilities. The arrangement of multiple sealing drive components 72 can achieve uniform force application to the first ring plate 71 and avoid stress concentration.

[0053] The folding cover 73 is used to unfold when the first ring plate 71 is against the surface of the photovoltaic panel 300, and to fold when the first ring plate 71 is away from the surface of the photovoltaic panel 300. The specific type of the folding cover 73 can be set according to actual needs and is not limited thereto. For example, the folding cover 73 can be a flexible plate with a corrugated structure arranged in a ring.

[0054] The pressure detection unit is used to detect the pressure between the first ring plate 71 and the target photovoltaic panel 300. The arrangement of multiple pressure detection units can ensure that the force applied to the first ring plate 71 is uniform and avoid stress concentration. The specific type of pressure detection unit can be set according to actual needs and is not limited thereto. For example, the pressure detection unit can be a pressure sensor.

[0055] like Figure 4 As shown, in some embodiments, the sealing mechanism 7 further includes a second ring plate 74 and a plurality of elastic elements 75. The second ring plate 74 is movably disposed on the side of the first ring plate 71 away from the cleaning cover 3, and the plurality of elastic elements 75 are disposed between the second ring plate 74 and the first ring plate 71. The pressure detection unit is disposed on the side of the second ring plate 74 away from the first ring plate 71.

[0056] Understandably, since the second ring plate 74 is movably disposed on the side of the first ring plate 71 away from the cleaning cover 3, and multiple elastic elements 75 are disposed between the second ring plate 74 and the first ring plate 71, the first ring plate 71 can flexibly adhere to the surface of the photovoltaic panel 300 by cooperating with the second ring plate 74 and multiple elastic elements 75, thus avoiding damage to the photovoltaic panel 300 caused by excessive pressure from the first ring plate 71.

[0057] It should be noted that the second ring plate 74 is used to replace the first ring plate 71 and directly abut against the surface of the photovoltaic panel 300. It uses multiple elastic elements 75 for buffering to protect the photovoltaic panel 300. The specific type of the second ring plate 74 can be set according to actual needs and there are no restrictions on it.

[0058] The elastic element 75 is used for buffer protection of the photovoltaic panel 300. The specific type of the elastic element 75 can be set according to actual needs and there is no restriction. For example, the elastic element 75 can be a spring.

[0059] like Figure 2 As shown, in some embodiments, the cleaning device further includes a support rail 8, which is disposed on one side of the tracking shaft 100, and the length direction of the support rail 8 is parallel to the axial direction of the tracking shaft 100. The base 1 is slidably disposed on the support rail 8 along the length direction of the support rail 8. A second drive mechanism 2 is disposed on the base 1 and is connected to the support rail 8. The second drive mechanism 2 is used to drive the base 1 to move along the axial direction of the tracking shaft to the target photovoltaic panel 300.

[0060] It is understandable that, since the support rail 8 is set on one side of the tracking shaft 100, and the base 1 is slidably set on the support rail 8 along the length direction of the support rail 8, the base 1 can slide on one side of the tracking shaft 100 using the support rail 8. Furthermore, since the second drive mechanism 2 is set on the base 1 and is connected to the support rail 8, the second drive mechanism 2 can drive the base 1 to move along the axial direction of the tracking single axis to the target photovoltaic panel 300.

[0061] It should be noted that the support rail 8 is used for supporting and sliding the base 1. The specific type of the support rail 8 can be set according to actual needs and is not limited thereto. The sliding arrangement of the base 1 on the support rail 8 can be a sliding fit between the rail and the rail groove, or a fit between the rail and the pulley.

[0062] The second drive mechanism 2 can be a motor drive system based on a drive motor, a reducer, or other facilities. It utilizes the combination of gears and racks or other transmission structures to enable the base 1 to move on the support rail 8.

[0063] like Figure 2As shown, in some embodiments, the cleaning cover 3 is slidably mounted on the base 1 along the direction from the support rail 8 to the tracking shaft 100. A third drive mechanism 4 is mounted on the base 1 and is drively connected to the cleaning cover 3. The third drive mechanism 4 is used to drive the cleaning cover 3 to move along the direction from the support rail 8 to the tracking shaft 100 to cover the target photovoltaic panel 300, and to drive the cleaning cover 3 to move along the direction from the tracking shaft 100 to the support rail 8 to move away from the target photovoltaic panel 300.

[0064] It is understandable that, since the cleaning cover 3 is slidably mounted on the base 1 along the direction from the support rail 8 to the tracking shaft 100, and the third drive mechanism 4 is connected to the cleaning cover 3 in a transmission manner, the third drive mechanism 4 can drive the cleaning cover 3 to move along the direction from the support rail 8 to the tracking shaft 100 to cover the target photovoltaic panel 300, or drive the cleaning cover 3 to move along the direction from the tracking shaft 100 to the support rail 8 to move away from the target photovoltaic panel 300.

[0065] It should be noted that the sliding arrangement of the cleaning cover 3 on the base 1 can be set according to actual needs and there are no restrictions. For example, the cleaning cover 3 can be slidably arranged by the cooperation of guide rails and rail grooves. The third drive mechanism 4 can be a motor drive system based on drive motors, reducers and other facilities, and use lead screws and other means to realize the transmission with the cleaning cover 3. Both the sliding part and the transmission part can be protected from dust and rain by the cover.

[0066] In some embodiments, the cleaning device further includes a cleaning brush, which is disposed on the base 1 and abuts against the support rail 8.

[0067] Understandably, since the cleaning brush is mounted on the base 1 and abuts against the support rail 8, the cleaning brush can clean the support rail 8 as the base 1 moves, thereby further improving the stability of the base 1's movement.

[0068] It should be noted that the cleaning brush is used to move with the base 1 to clean the support track 8. The specific type of cleaning brush can be set according to actual needs and there are no restrictions on it.

[0069] In some embodiments, the cleaning device further includes a power module and a battery. The power module is disposed at one end of the tracking shaft 100, and its power input terminal is connected to the power output terminal of the photovoltaic panel 300. The battery is disposed within the base 1, and its power output terminal is connected to the power input terminals of the second drive mechanism 2, the third drive mechanism 4, and the cleaning mechanism 5, respectively. The charging terminal of the battery and the power supply terminal of the power module are positioned opposite each other. A control module controls the second drive mechanism 2 to move the base 1 to the power module, thereby connecting and energizing the charging terminal of the battery and the power supply terminal of the power module.

[0070] Understandably, since the power module is located at one end of the tracking shaft 100, and the power input terminal of the power module is connected to the power output terminal of the photovoltaic panel 300, the power module can convert the power output by the photovoltaic panel 300 to adapt to the battery. Furthermore, since the power output terminal of the battery is connected to the power input terminals of the second drive mechanism 2, the third drive mechanism 4, and the cleaning mechanism 5 respectively, the battery can supply power to the second drive mechanism 2, the third drive mechanism 4, and the cleaning mechanism 5, thereby avoiding the need for excessively long cables and enabling the cleaning device to operate independently and flexibly. At the same time, since the charging terminal of the battery and the power supply terminal of the power module are positioned opposite each other, when the base 1 moves to the power module, the charging terminal of the battery and the power supply terminal of the power module can be connected and connected, thereby enabling convenient charging of the battery.

[0071] It should be noted that the power module is used for power conversion. The specific type of power module can be set according to actual needs and there are no restrictions on it. For example, the power module can be an integrated conversion circuit based on transformers, filters, switching power supplies, etc.

[0072] The battery is used to store electrical energy and power the cleaning device for self-operation. The specific type of battery can be set according to actual needs and there are no restrictions on it.

[0073] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0074] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0076] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A cleaning device based on a single-axis photovoltaic tracking system, characterized in that, The single-axis photovoltaic tracking system includes: a tracking shaft, a first drive mechanism, and multiple photovoltaic panels. The tracking shaft is rotatably arranged, and the first drive mechanism drives the tracking shaft to rotate. The photovoltaic panels are inclinedly arranged on the tracking shaft, and the multiple photovoltaic panels are distributed at intervals along the axial direction of the tracking shaft. The cleaning device includes: The machine base, second drive mechanism, cleaning hood, third drive mechanism, multiple cleaning mechanisms, and control module; The base is movably mounted on the tracking single axis, and the second drive mechanism is connected to the base via a transmission. The cleaning cover is movably mounted on the base, and the third drive mechanism is connected to the cleaning cover in a transmission manner. The multiple cleaning mechanisms are respectively mounted on the cleaning cover. The control module is used to control the second drive mechanism to drive the base to move to the target photovoltaic panel, and to control the third drive mechanism to drive the cleaning cover to cover the target photovoltaic panel, and to control the multiple cleaning mechanisms to clean the corresponding areas on the surface of the target photovoltaic panel respectively.

2. The cleaning device based on a single-axis photovoltaic tracking system according to claim 1, characterized in that, The cleaning mechanism includes: Sweeping drive components and flexible sweeping discs; The flexible cleaning disc is rotatably disposed on the side of the cleaning cover near the target photovoltaic panel, and the cleaning drive component is disposed on the cleaning cover and is connected to the flexible cleaning disc in a transmission manner. The signal output terminal of the control module is connected to the control input terminal of the cleaning drive component. The control module is used to control the cleaning drive component to drive the flexible cleaning disk to rotate when the cleaning cover is closed on the target photovoltaic panel, so that the multiple flexible cleaning disks respectively clean the corresponding areas on the surface of the target photovoltaic panel.

3. The cleaning device based on a single-axis photovoltaic tracking system according to claim 2, characterized in that, Multiple flexible cleaning discs are distributed at intervals along a first direction and a second direction on the surface of the target photovoltaic panel to form a cleaning array. Adjacent flexible cleaning discs in the first direction rotate in the same direction, while adjacent flexible cleaning discs in the second direction rotate in opposite directions to form a dust collection channel. The cleaning device further includes: a plurality of dust suction mechanisms, wherein the dust suction ends of the plurality of dust suction mechanisms are spaced apart on the flexible cleaning disc along the second direction, and the dust suction ends of the dust suction mechanisms and the dust discharge ends of the dust collection channel are arranged opposite to each other. The signal output terminal of the control module is connected to the control input terminal of the dust collection mechanism, and the control module is used to control the dust collection mechanism to collect dust in the dust collection channel under negative pressure when the cleaning cover is closed on the target photovoltaic panel.

4. The cleaning device based on a single-axis photovoltaic tracking system according to claim 3, characterized in that, The dust collection mechanism includes: Multiple dust hoods, multiple booster heads, negative pressure dust collection box, and exhaust fan; The dust collection hoods are respectively disposed at the dust outlet of the dust collection channel, and the booster heads are respectively disposed at the air inlet of the dust collection channel. The negative pressure dust collection box is disposed on the base. The air inlet of the negative pressure dust collection box is connected to the dust collection hoods. The air inlet of the induced draft member is connected to the air outlet of the negative pressure dust collection box. The air outlet of the induced draft member is connected to the booster heads. The signal output terminal of the control module is connected to the control input terminal of the air duct, and the control module is used to control the air duct to open when the cleaning cover is closed on the target photovoltaic panel.

5. The cleaning device based on a single-axis photovoltaic tracking system according to claim 3, characterized in that, The cleaning device also includes: A sealing mechanism, comprising: a first ring plate, a sealing drive component, a folding cover, and multiple pressure detection units; The first ring plate is distributed and movably arranged along the circumference of the cleaning cover, and the sealing drive is disposed on the cleaning cover and is connected to the first ring plate in a transmission manner. The folding cover is disposed between the first ring plate and the cleaning cover, and the plurality of cleaning mechanisms are respectively located on the inner side of the folding cover. The pressure detection unit is located on the side of the first ring plate away from the cleaning cover, and multiple pressure detection units are distributed at intervals along the circumference of the first ring plate. The pressure detection unit is used to detect the pressure between the first ring plate and the target photovoltaic panel. The signal input terminal of the control module is connected to the signal output terminal of the pressure detection unit, and the signal output terminal of the control module is connected to the control input terminal of the sealing drive. The control module is used to control the sealing drive according to the pressure between the first ring plate and the target photovoltaic panel when the cleaning cover is closed on the target photovoltaic panel, so as to drive the first ring plate to adhere to the surface of the target photovoltaic panel with a preset pressure.

6. The cleaning device based on a single-axis photovoltaic tracking system according to claim 5, characterized in that, The sealing mechanism further includes: The second ring plate and multiple elastic elements; The second ring plate is movably disposed on the side of the first ring plate away from the cleaning cover, and a plurality of elastic elements are disposed between the second ring plate and the first ring plate, and the pressure detection unit is disposed on the side of the second ring plate away from the first ring plate.

7. The cleaning device based on a single-axis photovoltaic tracking system according to claim 1, characterized in that, The cleaning device also includes: A support rail is provided on one side of the tracking shaft, and the length direction of the support rail is parallel to the axial direction of the tracking shaft. The base is slidably disposed on the support rail along the length direction of the support rail. The second drive mechanism is mounted on the base and is connected to the support rail. The second drive mechanism is used to drive the base to move along the axial direction of the tracking single axis to the target photovoltaic panel.

8. The cleaning device based on a single-axis photovoltaic tracking system according to claim 7, characterized in that, The cleaning cover is slidably mounted on the base along the direction from the support rail to the tracking shaft; The third drive mechanism is mounted on the base and is connected to the cleaning hood. The third drive mechanism is used to drive the cleaning hood to move along the support track to the tracking shaft to cover the target photovoltaic panel, and to drive the cleaning hood to move along the tracking shaft to the support track to move away from the target photovoltaic panel.

9. The cleaning device based on a single-axis photovoltaic tracking system according to claim 7, characterized in that, The cleaning device also includes: A cleaning brush is mounted on the base and abuts against the support rail.

10. The cleaning device based on a single-axis photovoltaic tracking system according to claim 1, characterized in that, The cleaning device also includes: Power module and battery; The power module is located at one end of the tracking shaft, and the power input terminal of the power module is connected to the power output terminal of the photovoltaic panel. The battery is disposed inside the base, and the power output terminal of the battery is connected to the power input terminal of the second drive mechanism, the power input terminal of the third drive mechanism, and the power input terminal of the cleaning mechanism, respectively. The charging terminal of the battery and the power supply terminal of the power module are arranged opposite to each other, and the control module is used to control the second drive mechanism to drive the base to move to the power module so that the charging terminal of the battery and the power supply terminal of the power module are connected and turned on.

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