Photovoltaic panel cleaning device

Abstract

The invention belongs to the technical field of photovoltaic power generation panel cleaning, and discloses a photovoltaic panel cleaning device which comprises a shell, a plurality of sliding assemblies, a cleaning mechanism and a driving mechanism. The length of the shell is matched with the vertical length of the photovoltaic panel; the sliding assemblies are oppositely arranged on the shell, are in sliding connection with the upper end or the lower end of the photovoltaic panel and can drive the shell to reciprocate in the left-right direction of the photovoltaic panel; the cleaning mechanism comprises a first cleaning assembly and a second cleaning assembly which are arranged on the side, facing the photovoltaic panel, of the shell side by side in the left-right direction of the photovoltaic panel and can reciprocate in the up-down direction of the photovoltaic panel. Wherein the second cleaning assembly can perform secondary cleaning on the photovoltaic panel cleaned by the first cleaning assembly; the driving mechanism is arranged on the shell, and the output end of the driving mechanism is electrically connected with the cleaning mechanism. When the photovoltaic panel cleaning device is used for cleaning a photovoltaic panel, an operator can easily clean the photovoltaic panel in all directions, stains or cleaning traces are prevented from being left, the cleaning efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic panel cleaning, and particularly to a photovoltaic panel cleaning device. Background Art

[0002] Photovoltaic panels are exposed outdoors for a long time, and sundries such as dust, sand, leaves, and bird droppings will cover their surfaces, blocking sunlight from entering the photovoltaic cells and reducing the photoelectric conversion efficiency; moreover, if some of the cell wafers are covered by dirt, the uncovered cell wafers are still generating electricity, while the covered cell wafers may become loads (equivalent to resistors), causing the temperature of the local area to rise, which will trigger the "hot spot effect". Over time, it may damage the photovoltaic modules and even cause fires. Therefore, it is necessary to regularly clean the surface of the photovoltaic panels.

[0003] Due to the vast area occupied by photovoltaic power stations and the large number of photovoltaic modules, the photovoltaic panels are usually installed obliquely at the optimal light angle. When cleaning manually, the operator needs to hold the cleaning tool and stretch it upward or downward. It is laborious to clean the upper area, not only the work intensity is high, but also long-term operation is likely to cause worker fatigue. Moreover, in arrays with larger angles, the worker needs to repeatedly adjust the standing position, and even climb ladders or scaffolds, increasing the cleaning difficulty and safety hazards. This not only affects the cleaning efficiency but also significantly increases the labor cost; in addition, the current automatic cleaning devices have complex structures, difficult operations, and it is difficult to ensure the uniformity and thoroughness of cleaning, and it is easy to leave stains or cleaning marks, affecting the light transmittance and power generation efficiency of the photovoltaic panels, further increasing the maintenance cost. Summary of the Invention

[0004] The purpose of the present invention is to provide a photovoltaic panel cleaning device, which enables the operator to easily clean the photovoltaic panel comprehensively when cleaning the photovoltaic panel. The cleaning device has a simple structure, convenient operation, and can ensure the uniformity and thoroughness of cleaning, avoid leaving stains or cleaning marks, improve the cleaning efficiency, and reduce the labor cost.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A photovoltaic panel cleaning device, comprising:

[0007] A housing, the length of the housing matching the length of the photovoltaic panel in the up-down direction;

[0008] A plurality of sliding components, relatively positioned on the housing and respectively slidably connected to the upper end or the lower end of the photovoltaic panel, and capable of driving the housing to reciprocate in the left-right direction of the photovoltaic panel;

[0009] Cleaning mechanism, including a first cleaning component and a second cleaning component, which are arranged side by side in the left-right direction of the photovoltaic panel on one side of the housing facing the photovoltaic panel, are in contact with the surface of the photovoltaic panel, and can reciprocate in the up-down direction of the photovoltaic panel respectively; wherein, the second cleaning component can perform secondary cleaning on the photovoltaic panel after being cleaned by the first cleaning component;

[0010] Driving mechanism, arranged in the housing, and the output end of the driving mechanism is electrically connected to the cleaning mechanism to drive the cleaning mechanism to move in the up-down direction of the photovoltaic panel.

[0011] Further, the sliding component includes rollers and a mounting rack. The mounting rack is installed on the opposite side walls in the length direction of the housing. The rollers are installed on the mounting rack, and the outer edge of the rollers can be in rolling connection with the upper or lower end of the photovoltaic panel.

[0012] Further, the driving mechanism includes a gear driving component and two ball screws. The two ball screws are arranged in the length direction of the housing. The gear driving component is arranged on the housing, and its output end is respectively connected to the two ball screws. The first cleaning component and the second cleaning component are respectively threadedly connected to the two ball screws.

[0013] Further, the gear driving component includes a first driving motor, a first driving transmission member, two first driven transmission members and two first transmission members. The first driving motor is arranged on the housing, and its output end is connected to the first driving transmission member; the two first driven transmission members are arranged in the length direction of the housing and are respectively located on the opposite sides of the first driving transmission member, and both are meshed with the first driving transmission member to make the two first driven transmission members rotate in opposite directions relative to the first driving transmission member; one end of the two first driven transmission members far from the first driving transmission member penetrates through the side wall of the housing and is respectively connected to the two first transmission members; the output ends of the two first transmission members are respectively connected to the two ball screws.

[0014] Further, the cleaning mechanism further includes a cleaning box, which is arranged on the housing and is connected to the first cleaning component.

[0015] Further, the first cleaning component includes a drum bracket, a drum, drum bristles, and a cleaning drive member. The drum bracket is connected to the drive mechanism. The drum is mounted on the drum bracket and can rotate about its axis. The drum bristles are provided on the outer side of the drum and are in contact with the surface of the photovoltaic panel. The cleaning drive member is provided on the drum, and its output end is connected to the drum for driving the drum to rotate. A circulation channel is formed inside the drum bracket. One end of the circulation channel is connected to the outlet end of the cleaning box, and the other end is connected to the drum. A plurality of through holes are formed in the drum.

[0016] Further, the cleaning drive member includes a second drive motor and a second transmission part. The second transmission part penetrates through the drum along the length direction of the drum and can rotate about its axis. The second drive motor is mounted on the drum bracket, and the output end of the second drive motor is connected to the second transmission part to drive the second transmission part to rotate. A plurality of rotating plates are annularly arranged along the length direction of the second transmission part.

[0017] Further, the first cleaning component further includes a water absorption pad. The water absorption pad is wrapped around the outer side of the drum, and the drum bristles can penetrate through the water absorption pad.

[0018] Further, the second cleaning component includes a scraper bracket and a scraper. The scraper bracket is connected to the drive mechanism. The scraper is provided on the scraper bracket.

[0019] Further, the photovoltaic panel cleaning device further includes a holding member. The holding member is provided on one side in the length direction of the housing.

[0020] Advantages of the present invention:

[0021] The present invention provides a photovoltaic panel cleaning device, which includes a housing, a plurality of sliding components, a cleaning mechanism, and a driving mechanism. During the cleaning process of the photovoltaic panel, the length of the housing matches the length of the photovoltaic panel in the up-down direction. Since the sliding components are relatively arranged on the housing, and the sliding components can drive the housing to move along the left-right direction of the photovoltaic panel, the first cleaning component and the second cleaning component are arranged side by side along the left-right direction of the photovoltaic panel on the side of the housing facing the photovoltaic panel, and can reciprocate along the up-down direction of the photovoltaic panel through the driving mechanism. The operator only needs to stand below the photovoltaic panel and move the photovoltaic panel cleaning device left and right to clean the photovoltaic panel. The arrangement of the first cleaning component and the second cleaning component enables the operator to easily clean the photovoltaic panel in all directions, avoiding the need for the operator to repeatedly adjust the standing position up and down, eliminating the need to climb ladders or scaffolds, reducing the cleaning difficulty and potential safety hazards, and not only affecting the cleaning efficiency. In addition, since the first cleaning component and the second cleaning component are arranged side by side along the width direction of the photovoltaic panel, after the first cleaning component finishes cleaning, by moving the photovoltaic panel cleaning device left or right, the second cleaning component can perform secondary cleaning on the photovoltaic panel cleaned by the first cleaning component, ensuring the uniformity and thoroughness of the cleaning, avoiding stains or cleaning marks left after one-time cleaning, improving the light transmittance and power generation efficiency of the photovoltaic panel, and further reducing the maintenance cost. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the photovoltaic panel cleaning device in the present invention;

[0023] Figure 2 is a right side view of the photovoltaic panel cleaning device in the present invention;

[0024] Figure 3 is Figure 2 a cross-sectional view taken along line A-A in

[0025] Figure 4 is a schematic structural diagram of the gear drive assembly and the ball screw in the present invention;

[0026] Figure 5 is a front view of the photovoltaic panel cleaning device in the present invention;

[0027] Figure 6 is Figure 5 a cross-sectional view taken along line B-B in

[0028] Figure 7 is Figure 5 a structural cross-sectional view taken along line B-B in

[0029] Figure 8 is Figure 7 an enlarged view at C in

[0030] In the figure:

[0031] 1. Housing; 2. Sliding assembly; 21. Roller; 22. Mounting bracket;

[0032] 3. Cleaning mechanism; 31. First cleaning assembly; 311. Drum bracket; 312. Drum; 313. Drum brush; 314. Cleaning drive; 3141. Second drive motor; 3142. Second transmission part; 31421. Rotating rod; 31422. First driving wheel; 31423. First driven wheel; 31424. Internal teeth; 315. Rotating plate; 32. Second cleaning assembly; 321. Scraper bracket; 322. Scraper; 33. Cleaning box; 34. Flow passage; 35. Through hole; 36. Water absorption pad; 37. Pipe;

[0033] 4. Driving mechanism; 41. Gear driving assembly; 411. First drive motor; 412. First active transmission part; 4121. First active rotating shaft; 4122. Second driving wheel; 413. First driven transmission part; 4131. First driven rotating shaft; 4132. Second driven wheel; 414. First transmission part; 4141. Third driving wheel; 4142. Third driven wheel; 42. Ball screw; 43. Slide block;

[0034] 5. Holding part. Detailed implementation mode

[0035] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only parts related to the present invention are shown in the drawings, rather than all structures.

[0036] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0038] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left" and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] Please refer to Figures 1 to 8 As shown, the present invention provides a photovoltaic panel cleaning device for cleaning photovoltaic panels. The photovoltaic panel cleaning device includes a housing 1, a plurality of sliding components 2, a cleaning mechanism 3 and a driving mechanism 4. The length of the housing 1 matches the length of the photovoltaic panel in the up-and-down direction; the plurality of sliding components 2 are relatively arranged on the housing 1 and are respectively slidably connected to the upper end or the lower end of the photovoltaic panel, and can drive the housing 1 to reciprocate in the left-and-right direction of the photovoltaic panel; the cleaning mechanism 3 includes a first cleaning component 31 and a second cleaning component 32, which are arranged side by side in the left-and-right direction of the photovoltaic panel on the side of the housing 1 facing the photovoltaic panel, are in contact with the surface of the photovoltaic panel, and can respectively reciprocate in the up-and-down direction of the photovoltaic panel; wherein, the second cleaning component 32 can perform secondary cleaning on the photovoltaic panel after being cleaned by the first cleaning component 31; the driving mechanism 4 is arranged in the housing 1, and the output end of the driving mechanism 4 is electrically connected to the cleaning mechanism 3 to drive the cleaning mechanism 3 to move in the up-and-down direction of the photovoltaic panel.

[0040] During the cleaning process of the photovoltaic panel, the length of the housing 1 matches the length of the photovoltaic panel in the up and down direction. Since the sliding assembly 2 is relatively arranged at the position of the housing 1, and the sliding assembly 2 can drive the housing 1 to move along the left and right direction of the photovoltaic panel, the first cleaning assembly 31 and the second cleaning assembly 32 are arranged side by side along the left and right direction of the photovoltaic panel on the side of the housing 1 facing the photovoltaic panel, and can be in contact with the surface of the photovoltaic panel, making the cleaning range more comprehensive. And it can reciprocate along the up and down direction of the photovoltaic panel through the driving mechanism 4. The operator only needs to stand under the photovoltaic panel and move the housing 1 left and right to clean the photovoltaic panel, enabling the operator to easily clean the photovoltaic panel in all directions, avoiding the need for the operator to repeatedly adjust the standing position up and down, without the need to climb ladders or scaffolds, reducing the cleaning difficulty and potential safety hazards, and not only affecting the cleaning efficiency. In addition, since the first cleaning assembly 31 and the second cleaning assembly 32 are arranged side by side along the width direction of the photovoltaic panel, after the first cleaning assembly 31 finishes cleaning, by moving the housing 1 to the left or right, the second cleaning assembly 32 can perform secondary cleaning on the photovoltaic panel cleaned by the first cleaning assembly 31, ensuring the uniformity and thoroughness of the cleaning, avoiding stains or cleaning marks left after one-time cleaning, improving the light transmittance and power generation efficiency of the photovoltaic panel, and further reducing the maintenance cost.

[0041] In some embodiments, the photovoltaic panel cleaning device further includes a gripping member 5, and the gripping member 5 is arranged on one side in the length direction of the housing 1; the gripping member 5 provides a fixed gripping position for the operator, and the gripping member 5 is arranged on one side in the length direction of the housing 1, making it closer to the operator, facilitating its grasping and moving the photovoltaic panel cleaning device left and right.

[0042] Optionally, the gripping member 5 can be a handle or a gripping groove, and no specific limitation is made here.

[0043] Combined Figure 1 and Figure 2 As shown, specifically, the cleaning mechanism 3 further includes a cleaning box 33, and the cleaning box 33 is arranged on the housing 1 and is connected to the first cleaning assembly 31; a certain amount of cleaning liquid can be stored in the cleaning box 33, and through the connection with the first cleaning assembly 31, the cleaning liquid can be smoothly conveyed to the first cleaning assembly 31, thereby improving the cleaning effect. With the assistance of the cleaning liquid, the first cleaning assembly 31 can more efficiently remove the dirt on the surface of the photovoltaic panel and achieve more thorough cleaning.

[0044] Optionally, the cleaning box 33 can be filled with, but not limited to, detergent or clean water, and can be assembled according to actual needs.

[0045] Optionally, a feed inlet is provided on the cleaning tank 33, facilitating the operator to regularly add cleaning liquid into the cleaning tank 33 through the feed inlet. The outlet end of the cleaning tank 33 and the inlet end of the circulation channel 34 can be connected by a pipeline 37. Among them, the pipeline 37 can be, but is not limited to, a water pipe, and no further limitation is made here.

[0046] Specifically, the first cleaning component 31 includes a roller bracket 311, a roller 312, roller brush bristles 313, and a cleaning drive member 314. The roller bracket 311 is connected to the drive mechanism 4. The roller 312 is installed on the roller bracket 311 and can rotate around its axis. The roller brush bristles 313 are provided on the outer side of the roller 312 and are in contact with the surface of the photovoltaic panel. The cleaning drive member 314 is provided on the roller 312, and its output end is connected to the roller 312 for driving the roller 312 to rotate. A circulation channel 34 is provided inside the roller bracket 311. One end of the circulation channel 34 is connected to the outlet end of the cleaning tank 33, and the other end is connected to the roller 312. A plurality of through holes 35 are provided on the roller 312. Among them, the roller bracket 311 provides a fixed installation position for the roller 312, making the installation of the roller 312 more stable. At the same time, the roller bracket 311 is connected to the drive mechanism 4, and the drive mechanism 4 can drive the roller bracket 311 and the roller 312 to move up and down along the photovoltaic panel. Meanwhile, the roller 312 is provided with roller brush bristles 313, and the roller 312 itself can rotate around its own axis under the drive of the cleaning drive member 314. Compared with only cleaning by fixed brush bristles, the roller brush bristles 313 can generate frictional force on the surface of the photovoltaic panel when rotating, can actively roll away dirt, rather than relying on passive dragging friction, making stains, dust, and stubborn dirt easier to be removed, reducing the adhesion force to the photovoltaic panel during the cleaning process, improving the cleaning efficiency, and the rotating brush bristles can penetrate into the small depressions or uneven areas on the surface of the photovoltaic panel to achieve more thorough cleaning. In addition, a circulation channel 34 is provided inside the roller bracket 311. One end of the circulation channel 34 is connected to the outlet end of the cleaning tank 33, and the other end is connected to the roller 312. A plurality of through holes 35 are provided on the roller 312 so that the cleaning liquid can flow into the roller 312 and penetrate to the roller brush bristles 313 through the through holes 35, making the cleaning more thorough.

[0047] Optionally, the plurality of through holes 35 are arranged in an array on the barrel wall of the roller 312, which enables the cleaning liquid to flow out evenly.

[0048] As Figure 7As shown, more specifically, the cleaning driving member 314 includes a second driving motor 3141 and a second transmission part 3142. The second transmission part 3142 penetrates through the drum 312 along the length direction of the drum 312 and can rotate around its axis. The second driving motor 3141 is installed on the drum bracket 311, and the output end of the second driving motor 3141 is connected to the second transmission part 3142 to drive the second transmission part 3142 to rotate. A plurality of rotating plates 315 are circumferentially arranged along the length direction of the second transmission part 3142. Among them, since the second transmission part 3142 penetrates the entire drum 312 and the second driving motor 3141 drives it to rotate, the rotational force can be evenly transmitted to each area of the drum 312, ensuring the stable rotation of the drum 312. The rotation of the rotating plate 315 drives the cleaning liquid to flow inside the drum 312, enabling the cleaning liquid to be evenly distributed onto the drum brush hairs 313, improving the cleaning effect on the surface of the photovoltaic panel.

[0049] As Figure 8As shown, optionally, the second transmission part 3142 includes a rotating rod 31421, a first driving wheel 31422, a first driven wheel 31423 and internal teeth 31424. The rotating rod 31421 penetrates through both ends of the roller 312 along the length direction of the roller 312 and is connected to the output end of the second driving motor 3141. The second driving motor 3141 can drive the rotating rod 31421 to rotate around its axis. A first driving wheel 31422 is provided at one end of the rotating rod 31421. One end of the first driven wheel 31423 penetrates through the side wall of one end of the roller 312 and is fixedly connected to the roller bracket 311. An internal tooth 31424 structure is provided on the inner edge of this side wall. The first driving wheel 31422 and the internal teeth 31424 are meshed and connected through the first driven wheel 31423. When the second driving motor 3141 is started, it outputs power to drive the rotating rod 31421 to rotate, and then drives the first driving wheel 31422 to rotate. The first driving wheel 31422 further drives the internal tooth 31424 structure on the inner wall of the roller 312 to rotate through the first driven wheel 31423, ultimately realizing the stable driving of the roller 312, so that the roller 312 rotates around its axis. A plurality of rotating plates 315 are arranged around the rotating rod 31421 and arranged along the length direction of the roller 312. Adopting the driving wheel - driven wheel - internal tooth transmission structure can evenly transmit the driving force to the entire inner wall of the roller 312, avoid the problem of uneven force that may be caused by single - point driving, make the rotation of the roller 312 more stable, and the assembly structure is simple, making the overall structure more compact. Since the rotating rod 31421 penetrates the entire roller 312 and is synchronously driven at both ends, it helps to reduce the swing of the roller 312. The roller 312 can rotate smoothly and continuously, and the roller brush hairs 313 on the roller 312 can evenly contact the surface of the photovoltaic panel, achieving a better effect of removing dust, dirt and stubborn stains. At the same time, by arranging a plurality of rotating plates 315 around the rotating rod 31421 and arranging them along the length direction of the roller 312, the rotation of the rotating rod 31421 can drive the plurality of rotating plates 315 to rotate, so as to drive the cleaning liquid to flow inside the roller 312, which helps to evenly distribute the cleaning liquid and enhance the fluidity of the cleaning liquid.

[0050] Since the cleaning liquid is directly sprayed on the surface of the photovoltaic panel through the through - holes 35, it may cause local accumulation or loss of the cleaning liquid. In order to make the distribution of the cleaning liquid more uniform, refer to Figure 8 , in this embodiment, the first cleaning component further includes a water - absorbing pad 36. The water - absorbing pad 36 is coated on the outside of the roller 312, and the roller brush hairs 313 can penetrate through the water - absorbing pad 36. Among them, the water - absorbing pad 36 can adsorb the cleaning liquid flowing out through the through - holes 35. Through the capillary action of the water - absorbing pad 36, the cleaning liquid can be evenly absorbed and slowly released, so that it is evenly distributed on the surface of the photovoltaic panel during the rotation of the roller 312. Cooperating with the roller brush hairs 313, it can effectively improve the cleaning efficiency.

[0051] Optionally, the water-absorbing pad 36 can be, but is not limited to, a sponge pad or a microfiber cloth, and no further limitation is made here.

[0052] Optionally, the roller bristles 313 can be arranged in an array along the length direction of the roller 312, so that when the first cleaning assembly 31 is cleaning, a larger cleaning range can be taken into account, improving the cleaning coverage rate. The roller bristles 313 can be, but are not limited to, made of soft elastic materials such as microfiber or nylon, and can efficiently clean the photovoltaic panel on the premise of reducing the wear on the surface of the photovoltaic panel.

[0053] Combined Figure 5 and Figure 6 As shown, specifically, the second cleaning assembly 32 includes a scraper support 321 and a scraper 322. The scraper support 321 is connected to the driving mechanism 4, and the scraper 322 is arranged on the scraper support 321; among them, the scraper support 321 provides a stable installation position for the scraper 322, enabling it to be stably installed, and driven by the driving mechanism 4, it can drive the scraper 322 to move along the up and down direction of the photovoltaic panel. Since the second cleaning assembly 32 can perform secondary cleaning on the photovoltaic panel after being cleaned by the first cleaning assembly 31, therefore, through the scraper 322, the water stains, dust or residual cleaning liquid that are not completely removed by the first cleaning assembly 31 can be effectively removed, further improving the cleaning effect and light transmittance of the photovoltaic panel.

[0054] Optionally, in order to prevent the scraper 322 from wearing the surface of the photovoltaic panel, the scraper 322 can be made of a soft elastic material, such as silicone or rubber material, etc., and no specific limitation is made here.

[0055] In order to make the cleaning mechanism 3 move smoothly, as Figure 4 shown, in some embodiments, the driving mechanism 4 includes a gear driving assembly 41 and two ball screws 42. The two ball screws 42 are arranged along the length direction of the housing 1. The gear driving assembly 41 is arranged on the housing 1, and its output ends are respectively connected to the two ball screws 42. The first cleaning assembly 31 and the second cleaning assembly 32 are respectively threadedly connected to the two ball screws 42; among them, the gear driving assembly 41 drives the two ball screws 42 to drive the first cleaning assembly 31 and the second cleaning assembly 32 connected thereto to move along the up and down direction of the photovoltaic panel respectively. Since the gear transmission method has a high transmission efficiency, it can smoothly and synchronously drive the two ball screws 42, ensuring the smooth movement of the entire cleaning mechanism 3; since the ball screw 42 has a high transmission accuracy, precise positioning can be achieved, enabling the cleaning assembly to move smoothly along the set trajectory, ensuring that the cleaning process is uniform and without deviation, improving the cleaning quality of the surface of the photovoltaic panel, making the resistance small during the sliding process of the first cleaning assembly 31 and the second cleaning assembly 32, and the movement is smoother and more stable, avoiding problems such as jitter or poor operation caused by excessive friction.

[0056] To improve the smooth operation of the driving mechanism 4, the gear driving assembly 41 can be placed at the center position of the housing 1, and the two ball screws 42 are placed on both sides of the gear driving assembly 41. This can make the forces on the ball screws 42 on both sides of the gear driving assembly 41 balanced, reduce vibration, and reduce deformation or transmission errors caused by excessive force on one side.

[0057] As Figure 4 shown, optionally, the first cleaning assembly 31 and the second cleaning assembly 32 are respectively connected to the ball screw 42 through the slider 43; wherein the first cleaning assembly 31 and the second cleaning assembly 32 are respectively detachably and fixedly connected to the slider 43, and the slider 43 is arranged on the ball screw 42 by means of threaded connection. With the above connection method, not only can it ensure the smooth movement of the first cleaning assembly 31 and the second cleaning assembly 32 along the linear track, effectively reduce shaking and jitter, thereby improving the cleaning stability and cleaning effect; at the same time, when it is necessary to clean or replace the first cleaning assembly 31 and the second cleaning assembly 32, their detachable and fixed design makes the installation and disassembly of the two more convenient, improving the maintenance efficiency.

[0058] Specifically, the gear driving assembly 41 includes a first driving motor 411, a first driving transmission member 412, two first driven transmission members 413 and two first transmission members 414. The first driving motor 411 is arranged on the housing 1, and its output end is connected to the first driving transmission member 412; the two first driven transmission members 413 are arranged along the length direction of the housing 1 and are respectively located on the opposite sides of the first driving transmission member 412, and both of them are meshed with the first driving transmission member 412 so that the two first driven transmission members 413 rotate in opposite directions relative to the first driving transmission member 412; one end of the two first driven transmission members 413 far from the first driving transmission member 412 penetrates through the side wall of the housing 1 and is respectively connected to the two first transmission members 414; the output ends of the two first transmission members 414 are respectively connected to the two ball screws 42. Among them, when the first driving motor 411 is started, it outputs power to drive the first driving transmission member 412 to rotate, and then drives the two first driven transmission members 413 to rotate in opposite directions, so as to ensure that the two ball screws 42 can rotate synchronously and in opposite directions, avoid interference between the two cleaning assemblies, ensure the smooth movement of the cleaning assembly in the length direction of the housing 1, and improve the coordination of the transmission assembly; adopting gear meshing transmission, compared with belt or chain transmission, has higher rigidity and reliability, and is not prone to slipping or loosening during long-term operation, ensuring the stable operation of the cleaning mechanism 3.

[0059] As Figure 3As shown, more specifically, the first active transmission member 412 includes a first active rotating shaft 4121 and a second active wheel 4122, where the second active wheel 4122 is provided at one end of the first active rotating shaft 4121. The first driven transmission member 413 includes a first driven rotating shaft 4131 and a second driven wheel 4132, and the second driven wheel 4132 is provided at one end of the first driven rotating shaft 4131. The first transmission member 414 includes a third active wheel 4141 and a third driven wheel 4142, which are meshed and connected to each other. The third active wheel 4141 is connected to the end of the first driven rotating shaft 4131 away from the second active wheel 4122, and the third driven wheel 4142 is connected to the ball screw 42. During operation, the first drive motor 411 drives the first active rotating shaft 4121 to rotate, thereby driving the second active wheel 4122 to rotate. The second active wheel 4122 then causes the two second driven wheels 4132 to rotate in opposite directions through meshing, and further drives the first driven rotating shaft 4131 to rotate synchronously and in the opposite direction. Subsequently, the first driven rotating shaft 4131 drives the third active wheel 4141 to rotate, and the third active wheel 4141 further drives the third driven wheel 4142 to rotate, ultimately driving the ball screw 42 to rotate synchronously and in the opposite direction. It can be understood that the gear transmission method has a high transmission efficiency, ensuring the precise synchronous drive of the ball screw 42, so that the cleaning component of the photovoltaic panel cleaning device can move smoothly and efficiently along the length direction of the housing 1, improving the overall transmission efficiency and cleaning effect.

[0060] Optionally, the second active wheel 4122 and the second driven wheel 4132 can be helical gears. Among them, the tooth surfaces of the helical gears are meshed at an angle. Compared with spur gears, the gear contact is a process of gradually entering and exiting meshing, avoiding the impact caused by the instantaneous contact of spur gears, making the transmission more stable and reducing vibration and noise.

[0061] Combined with Figure 1 and Figure 5 As shown, in order to make the sliding component 2 slide smoothly, in some embodiments, the sliding component 2 includes rollers 21 and a mounting frame 22. The mounting frame 22 is mounted on the opposite side walls in the length direction of the housing 1. The rollers 21 are mounted on the mounting frame 22, and the outer edge of the rollers 21 can be in rolling connection with the upper or lower end of the photovoltaic panel; among them, the mounting frame 22 provides a fixed mounting position for the rollers 21, and the rollers 21 are in rolling connection with the upper or lower end of the photovoltaic panel, reducing the frictional resistance during the movement of the sliding mechanism 2, reducing the operating energy consumption, and also facilitating the operator to quickly install or replace the cleaning device without complex adjustment and reducing the installation error.

[0062] In other embodiments, the number of the rolling components 2 can be two, four, or eight, without specific limitation. The arrangement method can be set at the four corners of the housing 1, or can be set on the opposite side edges in the length direction of the housing 1, which is not specifically limited here.

[0063] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A photovoltaic panel cleaning device, characterized in that, Comprising: A housing (1), the length of the housing (1) being matched with the up-down direction length of the photovoltaic panel; A plurality of sliding components (2), relatively positioned on the housing (1), and respectively slidably connected to the upper end or the lower end of the photovoltaic panel, and capable of driving the housing (1) to reciprocate in the left-right direction of the photovoltaic panel; A cleaning mechanism (3), including a first cleaning component (31) and a second cleaning component (32), the two being arranged side by side in the left-right direction of the photovoltaic panel on the side of the housing (1) facing the photovoltaic panel, and abutting against the surface of the photovoltaic panel, and respectively capable of reciprocating in the up-down direction of the photovoltaic panel; wherein, the second cleaning component (32) can perform secondary cleaning on the photovoltaic panel after being cleaned by the first cleaning component (31); A driving mechanism (4), arranged on the housing (1), and the output end of the driving mechanism (4) is electrically connected to the cleaning mechanism (3) to drive the cleaning mechanism (3) to move in the up-down direction of the photovoltaic panel.

2. The photovoltaic panel cleaning device according to claim 1, characterized in that, The sliding component (2) includes a roller (21) and a mounting bracket (22), the mounting bracket (22) is mounted on the opposite side walls in the length direction of the housing (1), the roller (21) is mounted on the mounting bracket (22), and the outer edge of the roller (21) can be in rolling connection with the upper end or the lower end of the photovoltaic panel.

3. The photovoltaic panel cleaning device according to claim 1, characterized in that, The driving mechanism (4) includes a gear driving component (41) and two ball screws (42), the two ball screws (42) are arranged along the length direction of the housing (1), the gear driving component (41) is arranged on the housing (1), and its output end is respectively connected to the two ball screws (42), and the first cleaning component (31) and the second cleaning component (32) are respectively threadedly connected to the two ball screws (42).

4. The photovoltaic panel cleaning device according to claim 3, characterized in that, The gear driving component (41) includes a first driving motor (411), a first driving transmission member (412), two first driven transmission members (413) and two first transmission members (414), the first driving motor (411) is arranged on the housing (1), and its output end is connected to the first driving transmission member (412); the two first driven transmission members (413) are arranged along the length direction of the housing (1), and are respectively located on the opposite sides of the first driving transmission member (412), and both are meshed and connected to the first driving transmission member (412) so that the two first driven transmission members (413) rotate in opposite directions relative to the first driving transmission member (412); the ends of the two first driven transmission members (413) far from the first driving transmission member (412) pass through the side wall of the housing (1) and are respectively connected to the two first transmission members (414); the output ends of the two first transmission members (414) are respectively connected to the two ball screws (42).

5. The photovoltaic panel cleaning device according to claim 1, characterized in that, The cleaning mechanism (3) further includes a cleaning box (33), the cleaning box (33) is arranged on the housing (1) and is connected to the first cleaning component (31).

6. The photovoltaic panel cleaning device according to claim 5, characterized in that, The first cleaning assembly (31) includes a drum bracket (311), a drum (312), drum bristles (313) and a cleaning drive member (314). The drum bracket (311) is connected to the drive mechanism (4). The drum (312) is mounted on the drum bracket (311) and can rotate about its axis. The drum bristles (313) are provided on the outer side of the drum (312) and are in contact with the surface of the photovoltaic panel. The cleaning drive member (314) is provided on the drum (312), and its output end is connected to the drum (312) for driving the drum (312) to rotate. A circulation channel (34) is formed inside the drum bracket (311). One end of the circulation channel (34) is connected to the outlet end of the cleaning tank (33), and the other end is connected to the drum (312). A plurality of through holes (35) are formed in the drum (312).

7. The photovoltaic panel cleaning device according to claim 6, wherein The cleaning drive member (314) includes a second drive motor (3141) and a second transmission part (3142). The second transmission part (3142) penetrates the drum (312) along the length direction of the drum (312) and can rotate about its axis. The second drive motor (3141) is mounted on the drum bracket (311), and the output end of the second drive motor (3141) is connected to the second transmission part (3142) to drive the second transmission part (3142) to rotate. A plurality of rotating plates (315) are circumferentially arranged along the length direction of the second transmission part (3142).

8. The photovoltaic panel cleaning device according to claim 7, wherein, The first cleaning assembly (31) further includes a water absorption pad (36). The water absorption pad (36) is wrapped around the outer side of the drum (312), and the bristles of the drum (312) can penetrate through the water absorption pad (36).

9. The photovoltaic panel cleaning device according to claim 1, wherein The second cleaning assembly (32) includes a scraper bracket (321) and a scraper (322). The scraper bracket (321) is connected to the drive mechanism (4). The scraper (322) is provided on the scraper bracket (321).

10. The photovoltaic panel cleaning device according to any one of claims 1-9, characterized in that, The photovoltaic panel cleaning device further includes a holding member (5). The holding member (5) is provided on one side in the length direction of the housing (1).

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