Stripping type photovoltaic panel cleaning device

Abstract

The invention discloses a spanning type photovoltaic panel cleaning device which comprises a main machine frame, a sweeping mechanism, a moving mechanism, a spanning device and an anti-disengaging assembly, the main machine frame is thin and long and extends in the width direction of a photovoltaic panel, and the sweeping mechanism is installed at the bottom of the main machine frame and can be attached to the surface of the photovoltaic panel to complete sweeping operation; the moving mechanisms are correspondingly installed at the two ends of the main rack and comprise walking belt wheels and driving assemblies, the driving assemblies drive the walking belt wheels to rotate so as to drive the main rack to transversely move along the photovoltaic panel, the crossing device comprises a fixed supporting rod and a lifting moving part, and the lifting moving part is used for height adjustment and moving transition when the cleaning device crosses the photovoltaic panel; the anti-falling assembly is installed on the side, away from the surface of the photovoltaic panel, of each fixing supporting rod and abuts against the side edge of the photovoltaic panel in a matched mode. According to the cleaning device, continuous cleaning of multiple photovoltaic panels can be achieved without manual disassembly and assembly, the device is effectively prevented from sliding down, the cleaning efficiency and reliability are remarkably improved, and the automatic cleaning requirement of a large-scale photovoltaic field is met.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic panel cleaning technology, and specifically relates to a cross-type photovoltaic panel cleaning device. Background Technology

[0002] With the popularization of solar power generation technology, large-scale photovoltaic (PV) fields are being built extensively in Northwest China. This region experiences frequent dust storms and sandstorms, causing dust and sand particles to accumulate on the surface of the PV panels, leading to decreased light transmittance and impaired photoelectric conversion efficiency. Therefore, regular cleaning and maintenance of the PV panels are necessary. To improve power generation efficiency, PV panels are typically installed at an angle in a continuous array, with a 50cm-100cm gap between adjacent panels to meet installation, ventilation, and maintenance requirements.

[0003] Currently, most existing photovoltaic panel cleaning devices employ an adsorption-based structure, using adsorption force to adhere the device to the photovoltaic panel surface for cleaning. However, these adsorption-based cleaning devices have significant technical limitations and are difficult to adapt to the actual scenario of the aforementioned photovoltaic panel arrays: Firstly, existing adsorption-type cleaning devices lack the ability to move across photovoltaic panels within this spacing, limiting their cleaning range to the area of ​​a single photovoltaic panel. After cleaning a single photovoltaic panel, the device must be manually removed from the cleaned panel and reinstalled on the next panel before cleaning can continue. This process severely restricts the expansion of the cleaning range, resulting in low overall work efficiency. Secondly, because the photovoltaic panels are installed at an angle, the adsorption device is easily affected by factors such as insufficient adsorption force and fluctuations in the flatness of the photovoltaic panel surface when it moves on the angled surface. This can cause the device to fall off, which not only interrupts the cleaning operation but may also damage the device, resulting in poor reliability of the cleaning device.

[0004] For large-scale photovoltaic (PV) panel arrays in large-scale PV fields, the aforementioned manual disassembly and assembly procedures not only significantly increase labor intensity and are cumbersome, but more importantly, they completely disrupt the continuity of cleaning operations, severely limiting the overall cleaning efficiency of the PV field and failing to meet the actual needs of large-area PV fields for efficient and automated cleaning. Therefore, there is an urgent need to develop a PV panel cleaning device that can solve the problem of spacing movement between adjacent PV panels while improving cleaning efficiency and device reliability, in order to overcome the shortcomings of existing technologies and adapt to the cleaning needs of large-scale PV fields. Summary of the Invention

[0005] To address the problems and shortcomings of the existing technologies, this invention provides a cross-type photovoltaic panel cleaning device that can continuously clean multiple photovoltaic panels without manual disassembly and assembly, effectively preventing the device from slipping, significantly improving cleaning efficiency and reliability, and adapting to the automated cleaning needs of large-scale photovoltaic fields.

[0006] This invention is achieved through the following technical solution: A traversing photovoltaic panel cleaning device includes a main frame, a cleaning mechanism, a moving mechanism, a traversing device, and an anti-detachment component. The main frame is elongated and extends along the width of the photovoltaic panel. The cleaning mechanism is installed at the bottom of the main frame and can conform to the surface of the photovoltaic panel to complete the cleaning operation. The moving mechanism is installed at both ends of the main frame and includes a traveling pulley and a drive component. The traveling pulley is in contact with the surface of the photovoltaic panel, and the drive component drives the traveling pulley to rotate, thereby moving the main frame laterally along the photovoltaic panel. The traversing device is fixed to each moving mechanism and perpendicular to the extension direction of the main frame. The traversing device includes a fixed support rod and a lifting moving component. The lifting moving component is installed at the end of the fixed support rod away from the moving mechanism and is used to adjust the height and transition the movement when the cleaning device traverses from the current photovoltaic panel to an adjacent photovoltaic panel. The anti-detachment component is installed on the side of each fixed support rod away from the surface of the photovoltaic panel and forms an abutment with the side of the photovoltaic panel to prevent the cleaning device from slipping down the inclined surface of the photovoltaic panel.

[0007] The main frame extends along the width of the photovoltaic panel, completely covering its width. Combined with the cleaning mechanism installed at its base, it enables a single lateral movement to thoroughly clean the entire surface of the photovoltaic panel, significantly improving the cleaning efficiency and continuity of a single panel. The moving mechanism, through its wheeled design that closely follows the photovoltaic panel surface and the power output of the drive components, provides stable lateral movement support, ensuring smooth and controllable movement during cleaning. The bridging device, through the coordinated action of fixed supports and lifting moving parts, precisely adjusts the height and transitions the cleaning device between adjacent photovoltaic panels, completely overcoming the limitation of existing devices that can only clean single panels. It automatically switches cleaning targets without manual disassembly, effectively reducing manual intervention. The anti-detachment component, which abuts against the side of the photovoltaic panel, specifically addresses the risk of slippage when working on tilted photovoltaic panels. This structural design improves the safety and reliability of the device, preventing work interruptions and equipment damage due to device detachment, making it suitable for cleaning large-scale photovoltaic arrays.

[0008] Furthermore, the crossing device also includes a span detection sensor, which is installed on the fixed support rod near the lifting moving part to detect whether there is a photovoltaic panel below the lifting moving part; When the span detection sensor detects that the area below has changed from having no photovoltaic panels to having photovoltaic panels, the span detection sensor triggers a state switching signal. When either span detection sensor on either side of the same moving mechanism sends a state switching signal, all lifting moving parts switch between the lifting state and the suspension state.

[0009] The span detection sensor is installed at a key position on the fixed support rod near the lifting moving component. It can accurately detect the presence and status of the photovoltaic panels below the lifting moving component in real time, ensuring accurate position identification during the span process. The automatic triggering mechanism of the state switching signal enables precise switching of the lifting moving component between the lifting and suspended states without manual judgment or operation, significantly improving the automation level and response speed of the device's span movement. The triggering signal of any sensor on both sides of the same moving mechanism can realize the synchronous switching of all lifting moving components, ensuring the consistency of span movement on both sides of the device, avoiding device tilting or jamming caused by imbalance on one side, further enhancing the continuity and stability of cleaning operations, and adapting to photovoltaic panel array scenarios with different spacing specifications.

[0010] Furthermore, the lifting moving component includes a rotating rod bracket, a lifting wheel, a first telescopic rod, and a controller. One end of the rotating rod bracket is hinged to a fixed support rod, and the lifting wheel is rotatably mounted on the other end of the rotating rod bracket for rolling in contact with the photovoltaic panel surface. Both ends of the first telescopic rod are hinged to the fixed support rod and the rotating rod bracket, respectively, and the first telescopic rod is electrically connected to the controller. The controller receives the state switching signal from the span detection sensor, drives the first telescopic rod to extend and retract, and thereby drives the rotating rod bracket to rotate around its hinge point with the fixed support rod.

[0011] The lifting and moving component adopts an integrated structural design of a rotating rod bracket, lifting wheel, first telescopic rod, and controller, with compact connections and efficient transmission among the components. The hinged connection between the rotating rod bracket and the fixed support rod provides the lifting wheel with greater travel and adjustment flexibility, adapting to span requirements with varying height differences. The extension and retraction of the first telescopic rod is precisely controlled by the controller, enabling height adjustment of the lifting wheel and ensuring the stability of the sweeping mechanism during lifting and lowering, preventing collision damage to the photovoltaic panel surface. The controller's rapid response to span detection sensor signals ensures timely state switching, making the connection between span movement and sweeping operations smoother and improving the overall coordination and accuracy of the device.

[0012] Furthermore, a first motor is installed on the lifting wheel. Adding a first motor to the lifting wheel provides it with independent active rotational power, changing the single power mode that relies solely on the moving mechanism to drive the span. The active power output effectively reduces the frictional resistance between the lifting wheel and the photovoltaic panel surface during the span, especially in scenarios with large span distances or height differences at the edges of the photovoltaic panels, significantly improving the efficiency and smoothness of span movement. The power assistance of the first motor enables the device to obtain more stable traction during span movement, avoiding jamming or stagnation, further ensuring the integrity and continuity of span movement, and reducing the risk of operation interruption due to span difficulties.

[0013] Furthermore, the anti-detachment component includes a second telescopic rod fixed to a fixed support rod and a blocking frame installed at the bottom of the second telescopic rod. The telescopic direction of the second telescopic rod is perpendicular to the photovoltaic panel, and the second telescopic rod extends to make the blocking frame abut against the upper side of the photovoltaic panel.

[0014] The anti-detachment component employs a combination structure of a second telescopic rod and a blocking frame. The second telescopic rod extends and retracts perpendicular to the photovoltaic panel, allowing for flexible adjustment of the blocking frame's installation height. This adapts to photovoltaic panels of varying thicknesses and tilt angles, enhancing the device's versatility. The tight contact between the blocking frame and the upper edge of the photovoltaic panel forms a reliable anti-detachment constraint, structurally preventing the device from sliding down the inclined surface and strengthening operational safety. The wear-resistant coating on the inner side of the blocking frame effectively reduces frictional wear when in contact with the photovoltaic panel's edge, minimizing maintenance frequency due to component wear, extending the lifespan of both the blocking frame and the photovoltaic panel, and preventing scratches and damage to the photovoltaic panel's edges caused by friction.

[0015] Furthermore, an auxiliary wheel is rotatably installed on the side of the barrier away from the photovoltaic panel. The auxiliary wheel is used to move the cleaning device along the width of the photovoltaic panel by rolling during the installation and position adjustment of the cleaning device.

[0016] The auxiliary wheels are installed on the side of the barrier away from the photovoltaic panel. Their rolling characteristics convert the sliding friction during the installation and positioning of the cleaning device into rolling friction, significantly reducing operating resistance. During initial installation, operators can easily push the cleaning device along the width of the photovoltaic panel using the auxiliary wheels, significantly improving operational convenience and positioning accuracy. The auxiliary wheels also reduce the physical effort required for manual adjustment of the device's position, improving overall work efficiency.

[0017] Furthermore, the anti-detachment component also includes an anti-detachment wheel assembly, which has multiple sets and is fixedly installed at both ends of the main frame. The anti-detachment wheel assembly is located below the cleaning mechanism along the thickness direction of the photovoltaic panel. The anti-detachment wheel assembly includes at least two rollers, which respectively abut against the upper and lower sides of the photovoltaic panel along its tilt direction.

[0018] The anti-detachment wheel assembly employs a multi-set arrangement installed at both ends of the main frame, forming multi-point constraints on the photovoltaic panel and enhancing the reliability of the anti-detachment structure. Each anti-detachment wheel assembly has two rollers that abut against the upper and lower edges of the photovoltaic panel along its inclined direction, forming a bidirectional limiting constraint. Compared to a single-direction anti-detachment structure, this more comprehensively resists the sliding tendency of the cleaning device along the inclined surface, effectively preventing the device from falling off even in the event of sudden vibrations or uneven surfaces. The anti-detachment wheel assembly is located below the cleaning mechanism along the thickness direction of the photovoltaic panel, and its installation position does not affect the working space of the cleaning mechanism, achieving non-interference between the anti-detachment function and the cleaning function, improving safety while ensuring cleaning effectiveness.

[0019] Furthermore, along the extension direction of the main frame, at least two sets of support ribs are installed at intervals on the main frame. Each support rib is fixedly connected to the main frame through a fixed connecting rod, and the two ends of the fixed connecting rod extend to the two ends of the main frame and are fixed to the moving mechanism at the end of the main frame.

[0020] Support ribs are spaced apart along the extension direction of the main frame, forming a stable frame structure with the main frame through fixed connecting rods. This effectively distributes the load borne by the main frame during operation, enhancing its overall rigidity and resistance to deformation. The fixed connecting rods extend to the ends of the main frame and are fixed to the moving mechanism, making the main frame and moving mechanism an integrated load-bearing structure. This avoids component damage caused by localized stress concentration and improves the structural stability of the device. This reinforced structural design allows the main frame to adapt to long-term, high-frequency span-distance movement and cleaning operations. Even in harsh environments such as wind and sand, it maintains structural accuracy, ensuring the stable installation position of the cleaning and moving mechanisms and guaranteeing that operational accuracy is not affected by structural deformation.

[0021] Furthermore, the cleaning mechanism includes a brush assembly and a second motor. The brush assembly is rotatably mounted on the main frame, and the second motor is connected to the brush assembly to drive its rotation for cleaning.

[0022] The cleaning mechanism employs a transmission connection structure between a brush assembly and a second motor. The second motor provides continuous and stable rotational power to the brush assembly, enabling an active rotational cleaning mode. Compared to passive cleaning structures, rotational cleaning generates stronger friction and cleaning force, effectively removing stubborn dust, sand, and other contaminants adhering to the photovoltaic panel surface, improving cleaning thoroughness, and ensuring full restoration of the photovoltaic panel's light transmittance. The rotation direction of the brush assembly coordinates with the movement direction of the device, generating multi-directional cleaning force, reducing cleaning dead zones, and preventing dust accumulation along the cleaning path, further improving cleaning effectiveness and ensuring the photovoltaic panel's photoelectric conversion efficiency.

[0023] Furthermore, the driving components of the moving mechanism include a third motor and a speed control module. The third motor is connected to the walking pulley via a transmission, and the speed control module is electrically connected to the third motor. The walking pulley includes a drive wheel body and an annular drive belt. The drive wheel body is connected to the third motor via a transmission and is used to drive the annular drive belt to rotate cyclically. The outer surface of the annular drive belt abuts against the surface of the photovoltaic panel.

[0024] The speed control module in the drive assembly is electrically connected to the third motor. It can flexibly adjust the output speed of the third motor based on actual working conditions such as the degree of dirt on the photovoltaic panel surface and ambient wind speed, thereby controlling the movement speed of the walking pulley and achieving a dynamic balance between cleaning efficiency and cleaning effect. The walking pulley adopts a combination structure of a drive wheel body and a ring-shaped drive belt. The ring-shaped drive belt increases the contact area with the photovoltaic panel surface, improves the tightness of contact, effectively reduces slippage, and ensures stable transmission of moving power. The flexible contact characteristics of the ring-shaped drive belt can adapt to slight fluctuations in the flatness of the photovoltaic panel surface, avoiding damage to the photovoltaic panel surface caused by localized pressure concentration, while also enhancing the stability of the device during movement, ensuring that the cleaning mechanism always maintains contact with the photovoltaic panel surface during operation.

[0025] The beneficial effects of this invention are: The cross-type photovoltaic panel cleaning device of the present invention forms an integrated technical solution with complementary functions and high efficiency through the coordinated design of the main frame, cleaning mechanism, moving mechanism, cross-type device and anti-detachment component. It specifically solves the core pain points of existing adsorption cleaning devices in photovoltaic panel array scenarios, such as lack of cross-range capability, easy detachment and low efficiency, and has outstanding advantages in multiple dimensions.

[0026] In terms of cleaning continuity and efficiency, the design of the main frame extending along the width of the photovoltaic panel, combined with the stable drive of the moving mechanism, enables one-time horizontal full-coverage cleaning of a single photovoltaic panel, significantly reducing the cleaning time of a single photovoltaic panel. The crossing device, through the precise coordination of fixed support rods, lifting moving parts and span detection sensors, can automatically complete the height adjustment and movement transition of the spacing between adjacent photovoltaic panels. It can achieve continuous cleaning of multiple photovoltaic panels without manual disassembly and assembly, completely breaking the range limitation of single-pane cleaning, significantly reducing manual intervention, reducing labor intensity, and meeting the high-efficiency requirements of batch cleaning in large-scale photovoltaic fields.

[0027] In terms of operational reliability and safety, the anti-detachment component adopts a multi-constraint structure consisting of a second telescopic rod, a blocking frame, and an anti-detachment wheel assembly. By tightly contacting the side of the photovoltaic panel, it forms a two-way limit, effectively resisting the risk of slippage when working on an inclined photovoltaic panel surface, and avoiding work interruption and equipment damage caused by the device falling off. At the same time, the wear-resistant coating on the inner side of the blocking frame and the flexible fit design of the walking wheel reduce frictional wear between the components and the photovoltaic panel, protecting the photovoltaic panel surface from damage and extending the service life of the device, making it suitable for harsh environments with frequent sandstorms.

[0028] In terms of cleaning effect and adaptability, the active rotation cleaning mode of the cleaning mechanism, combined with the dynamic adjustment of the speed control module, can flexibly adjust the cleaning intensity and moving speed according to the degree of dirt, effectively removing stubborn dust and sand particles, and fully restoring the light transmittance and photoelectric conversion efficiency of the photovoltaic panel. The reinforced structure composed of support ribs and fixed connecting rods enhances the rigidity and deformation resistance of the main frame, ensuring that the device maintains structural accuracy during long-term high-frequency operation. The modular design and adjustable characteristics of each component enable it to adapt to photovoltaic panel specifications of different widths and tilt angles, improving the versatility of the device.

[0029] In addition, the overall automated control logic of the device enables seamless connection between cross-distance detection, state switching and cleaning operations, further improving the coordination and accuracy of operations. It fully meets the actual needs of large-scale photovoltaic fields for efficient, safe, automated and reliable cleaning, and has significant practical value and promotion prospects. Attached Figure Description

[0030] Figure 1 A connection diagram illustrating an illustrative embodiment of the working state of a cross-type photovoltaic panel cleaning device according to the present invention; Figure 2 A front view illustrating an embodiment of the working state of a cross-type photovoltaic panel cleaning device according to the present invention; Figure 3 A schematic structural diagram illustrating the working state of a cross-type photovoltaic panel cleaning device according to the present invention; Figure 4 Used to explain Figure 3 Enlarged view of a portion of point A in the middle; Figure 5 A schematic diagram illustrating one embodiment of a cross-type photovoltaic panel cleaning device according to the present invention; Figure 6 Used to explain Figure 5 Enlarged view of a portion of point B in the middle; Figure 7 A schematic diagram illustrating another embodiment of a cross-type photovoltaic panel cleaning device of the present invention; Figure 8 Used to explain Figure 7 A magnified view of a portion of point C in the middle.

[0031] List of components and reference numerals: 1. Main frame; 11. Support rib; 12. Fixed connecting rod; 2. Cleaning mechanism; 21. Brush assembly; 3. Moving mechanism; 31. Walking pulley; 311. Drive wheel; 312. Circular drive belt; 32. Drive assembly; 4. Crossing device; 41. Fixed support rod; 42. Lifting moving part; 421. Rotating rod bracket; 422. Lifting wheel; 423. First telescopic rod; 5. Anti-detachment assembly; 51. Second telescopic rod; 52. Blocking frame; 53. Auxiliary wheel; 54. Anti-detachment wheel set; 541. Roller; 6. Photovoltaic panel. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that the directional terms such as left, right, up, down, front, and back in the embodiments of the present invention are only relative concepts or are based on the normal use state of the product, i.e., the direction of the product's movement, and should not be considered as limiting.

[0034] In addition, it should be noted that the dynamic terms such as "relative motion" mentioned in the embodiments of the present invention refer not only to changes in position, but also to movements such as rotation and rolling in which the position does not change relative to the position, but the state changes.

[0035] Finally, it should be noted that when a component is said to be "located on" or "set on" another component, it can be on the other component or may have an intervening component at the same time. When a component is said to be "connected to" another component, it can be directly connected to the other component or may have an intervening component at the same time.

[0036] like Figures 1 to 8 The illustrated cascading photovoltaic panel cleaning device is an integrated and automated photovoltaic panel 6 cleaning equipment. Through the organic collaboration of the main frame 1, cleaning mechanism 2, moving mechanism 3, cascading device 4, and anti-detachment component 5, it constructs a highly efficient cleaning system adapted to photovoltaic panel 6 array scenarios. Its specific technical solution is as follows: The main frame 1, serving as the foundational support structure of the entire device, adopts a slender design and extends along the width of the photovoltaic panel 6, providing a stable mounting platform for each functional component while ensuring complete coverage of the width of the photovoltaic panel 6, thus laying the structural foundation for a single horizontal cleaning operation. At least two sets of support ribs 11 are installed at intervals along the extension direction of the main frame 1. Each support rib 11 is fixedly connected to the main frame 1 via a fixed connecting rod 12. The two ends of the fixed connecting rod 12 extend to both ends of the main frame 1 and are fixed to the moving mechanism 3 at the end of the main frame 1. This reinforced structural design significantly improves the overall rigidity and deformation resistance of the main frame 1, ensuring structural stability and accuracy during long-term operation.

[0037] The cleaning mechanism 2 is installed at the bottom of the main frame 1 and adopts a combination structure of brush assembly 21 and second motor. The brush assembly 21 is rotatably installed on the main frame 1, and the second motor is connected to the brush assembly 21 for transmission, which can provide continuous and stable rotation power to the brush assembly 21, so that the brush assembly 21 can actively rotate and clean when it is in contact with the surface of the photovoltaic panel 6, and efficiently remove dust, sand and other pollutants from the surface of the photovoltaic panel 6.

[0038] The moving mechanism 3 is installed at both ends of the main frame 1 and is the core power unit for the lateral movement of the drive device. It includes a traveling pulley 31 and a drive assembly 32. The traveling pulley 31 is in contact with the surface of the photovoltaic panel 6. The drive assembly 32 includes a third motor and a speed control module. The third motor is driven by the traveling pulley 31, and the speed control module is electrically connected to the third motor, which can flexibly adjust the output speed of the third motor. The traveling pulley 31 specifically includes a drive wheel body 311 and an annular drive belt 312. The drive wheel body 311 is driven by the third motor and is used to drive the annular drive belt 312 to rotate cyclically. The outer surface of the annular drive belt 312 abuts against the surface of the photovoltaic panel 6. By increasing the contact area, the bonding stability is improved, ensuring the smoothness and controllability of power transmission, thereby driving the main frame 1 to move laterally along the photovoltaic panel 6.

[0039] The crossing device 4, fixed to each moving mechanism 3 and perpendicular to the extension direction of the main frame 1, is a key component for realizing span movement. It includes a fixed support rod 41, a lifting moving component 42, and a span detection sensor. The fixed support rod 41 provides structural support for the crossing device 4. The lifting moving component 42 is installed at the end of the fixed support rod 41 away from the moving mechanism 3, and specifically consists of a rotating rod bracket 421, a lifting wheel 422, a first telescopic rod 423, and a controller. One end of the rotating rod bracket 421 is hinged to the fixed support rod 41, and the lifting wheel 422 is rotatably installed at the other end of the rotating rod bracket 421. A first motor is installed on the lifting wheel 422. The two ends of the first telescopic rod 423 are respectively hinged to the fixed support rod 41 and the rotating rod bracket 421, and the first telescopic rod 423 is electrically connected to the controller. The span detection sensor is installed on the fixed support rod 41 near the lifting moving part 42 to detect whether there is a photovoltaic panel 6 below the lifting moving part 42. When the detection changes from no photovoltaic panel 6 to having photovoltaic panel 6 below, a state switching signal is triggered. When any span detection sensor on both sides of the same moving mechanism 3 sends a state switching signal, the controller receives the signal and drives the first telescopic rod 423 to extend or retract, causing the rotating rod bracket 421 to rotate around its hinge point with the fixed support rod 41, thereby realizing the switching of all lifting moving parts 42 between the lifting state and the suspension state, and completing the height adjustment and movement transition of the span.

[0040] The anti-detachment component 5 is installed on the side of each fixed support rod 41 away from the surface of the photovoltaic panel 6, and adopts a multi-layer anti-detachment structure design to ensure operational safety. First, the anti-detachment component 5 includes a second telescopic rod 51 fixed to the fixed support rod 41 and a blocking frame 52 installed at the bottom of the second telescopic rod 51. The telescopic direction of the second telescopic rod 51 is perpendicular to the photovoltaic panel 6. When the second telescopic rod 51 is extended, the blocking frame 52 can abut against the upper side of the photovoltaic panel 6. The inner side of the blocking frame 52 is provided with a wear-resistant coating, and an auxiliary wheel 53 is rotatably installed on the side of the blocking frame 52 away from the side of the photovoltaic panel 6. Second, the anti-detachment component 5 also includes an anti-detachment wheel group 54. Multiple anti-detachment wheel groups 54 are provided and are fixedly installed at both ends of the main frame 1. The anti-detachment wheel group 54 is located below the cleaning mechanism 2 along the thickness direction of the photovoltaic panel 6. Each anti-detachment wheel group 54 includes at least two rollers 541, which abut against the upper and lower sides of the photovoltaic panel 6 along its tilt direction, respectively. The double constraint prevents the device from slipping off the inclined surface of the photovoltaic panel 6.

[0041] When all components work together, the moving mechanism 3 drives the photovoltaic panel 6 to move laterally, the cleaning mechanism 2 rotates and cleans synchronously, the span detection sensor detects the position status in real time, drives the crossing device 4 to complete the span movement, and the anti-detachment component 5 provides anti-detachment protection throughout the process, forming a photovoltaic panel 6 cleaning operation system that requires no manual intervention, is continuous, efficient, safe and reliable.

[0042] In one embodiment, an integrated cross-type photovoltaic panel 6 cleaning device is implemented, suitable for large-scale tilted photovoltaic panel 6 array scenarios, and its specific structure and working process are as follows: The main frame 1 of the cross-type photovoltaic panel 6 cleaning device adopts a slender rigid structure, extending along the width direction of the photovoltaic panel 6. Three sets of support ribs 11 are installed at intervals along the extension direction of the main frame 1. Each support rib 11 is fixedly connected to the main frame 1 through a fixed connecting rod 12. The two ends of the fixed connecting rod 12 extend to the two ends of the main frame 1 and are fixed to the moving mechanism 3 at the end of the main frame 1, forming a stable support frame. A cleaning mechanism 2 is installed at the bottom of the main frame 1. The cleaning mechanism 2 includes a brush assembly 21 and a second motor. The brush assembly 21 is rotatably mounted on the main frame 1, and the second motor is driven by the brush assembly 21 to provide rotational power to the brush assembly 21.

[0043] The main frame 1 has corresponding moving mechanisms 3 installed at both ends. Each moving mechanism 3 includes a walking pulley 31 and a drive assembly 32. The drive assembly 32 consists of a third motor and a speed control module. The speed control module is electrically connected to the third motor. The walking pulley 31 includes a drive wheel body 311 and an annular drive belt 312. The drive wheel body 311 is connected to the third motor for transmission. The outer surface of the annular drive belt 312 abuts against the surface of the photovoltaic panel 6 to ensure the stability of the fit during movement. Each moving mechanism 3 is fixed with a crossing device 4 perpendicular to the extension direction of the main frame 1. The crossing device 4 includes a fixed support rod 41, a lifting moving part 42, and a span detection sensor. The span detection sensor is installed on the fixed support rod 41 near the lifting moving part 42 to detect the presence status of the photovoltaic panel 6 below in real time.

[0044] The lifting moving component 42 consists of a rotating rod bracket 421, a lifting wheel 422, a first telescopic rod 423, and a controller. One end of the rotating rod bracket 421 is hinged to the fixed support rod 41. The lifting wheel 422 is rotatably mounted on the other end of the rotating rod bracket 421. A first motor is installed on the lifting wheel 422. Both ends of the first telescopic rod 423 are hinged to the fixed support rod 41 and the rotating rod bracket 421, respectively. The first telescopic rod 423 is electrically connected to the controller. The controller forms a signal transmission connection with the span detection sensor.

[0045] Each fixed support rod 41 is equipped with an anti-detachment component 5 on the side away from the photovoltaic panel 6. The anti-detachment component 5 includes a second telescopic rod 51, a blocking frame 52, and an anti-detachment wheel set 54. The second telescopic rod 51 is fixed to the fixed support rod 41, and the blocking frame 52 is installed at the bottom of the second telescopic rod 51. The inner side of the blocking frame 52 is provided with a wear-resistant coating. An auxiliary wheel 53 is rotatably installed on the side of the blocking frame 52 away from the photovoltaic panel 6. The extension and retraction direction of the second telescopic rod 51 is perpendicular to the photovoltaic panel 6. There are four sets of anti-detachment wheel sets 54, which are fixedly installed at both ends of the main frame 1 and located below the cleaning mechanism 2 along the thickness direction of the photovoltaic panel 6. Each set of anti-detachment wheel sets 54 includes two rollers 541, which respectively abut against the upper and lower sides of the photovoltaic panel 6 along its tilt direction.

[0046] The cleaning device operates in four stages: The first stage is the installation and debugging stage. The operator pushes the device using the auxiliary wheels 53 on the blocking frame 52, flexibly adjusting the installation position along the width of the photovoltaic panel 6. After positioning, the second telescopic rod 51 extends, causing the blocking frame 52 to abut against the upper side of the photovoltaic panel 6. At the same time, the two rollers 541 of the anti-detachment wheel assembly 54 abut against the upper and lower sides of the photovoltaic panel 6 respectively, creating a double anti-detachment constraint. The second stage is the single photovoltaic panel 6 cleaning stage. After the device is started, the third motor drives the ring drive belt 312 to rotate cyclically through the drive wheel 311, driving the main frame 1 to move laterally along the photovoltaic panel 6. The speed control module adjusts the speed of the third motor according to the degree of dirt on the surface of the photovoltaic panel 6, controlling the moving speed. At the same time, the second motor drives the brush assembly 21 to rotate, adhering to the surface of the photovoltaic panel 6 for active cleaning, efficiently removing dust and sand. The third stage is the span movement stage. When the device moves to the end of the current photovoltaic panel 6, the span detection sensor (here, the right side) activates. The span detection sensor on the side detects that the area below has changed from having no photovoltaic panel 6 to having a photovoltaic panel 6, triggering a state switching signal. After receiving the signal, the controller drives the first telescopic rod 423 to extend, causing the rotating rod bracket 421 to rotate around the hinge point with the fixed support rod 41. The lifting wheel 422 lifts, causing the cleaning mechanism 2 to detach from the surface of the photovoltaic panel 6. Then, the first motor drives the lifting wheel 422 to rotate, and with the power output of the moving mechanism 3, the device smoothly crosses the gap between adjacent photovoltaic panels 6. The fourth stage is the continuous cleaning stage. When the span detection sensor (here, the span detection sensor on the left) detects that the area below has changed from having no photovoltaic panel 6 to having a photovoltaic panel 6, it triggers the state switching signal again. The controller drives the first telescopic rod 423 to retract, the rotating rod bracket 421 to reset, the lifting wheel 422 switches to the suspended state, and the cleaning mechanism 2 re-attaches to the surface of the photovoltaic panel 6. At the same time, at least one set of blocking frames 52 of the anti-detachment component 5 maintains contact constraint with the photovoltaic panel 6, and the cleaning device continues to move laterally along the new photovoltaic panel 6 and clean.

[0047] Throughout the operation, the main frame 1 structure reinforced by the supporting ribs 11 and the fixed connecting rods 12 ensures stable operation of the device. The flexible fit design of the ring drive belt 312 avoids damage to the surface of the photovoltaic panel 6. The collaboration between the span detection and the controller enables automated span control. Multiple anti-detachment structures completely eliminate the risk of slippage. The collaborative work of each component forms an efficient, continuous, and safe cleaning closed loop, which is fully compatible with the automated cleaning needs of large-scale photovoltaic fields.

[0048] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A cross-type photovoltaic panel cleaning device, characterized in that, include: The main frame is elongated and extends along the width direction of the photovoltaic panel; A cleaning mechanism is installed at the bottom of the main frame and can fit against the surface of the photovoltaic panel to complete the cleaning operation; A moving mechanism is installed at both ends of the main frame. The moving mechanism includes a walking pulley and a drive assembly. The walking pulley is in contact with the surface of the photovoltaic panel. The drive assembly drives the walking pulley to rotate, thereby driving the main frame to move laterally along the photovoltaic panel. A crossing device is fixed to each of the moving mechanisms and perpendicular to the extension direction of the main frame. The crossing device includes a fixed support rod and a lifting moving component. The lifting moving component is installed at the end of the fixed support rod away from the moving mechanism and is used to achieve height adjustment and movement transition when the cleaning device crosses from the current photovoltaic panel to the adjacent photovoltaic panel. An anti-detachment component is installed on the side of each of the fixed supports away from the photovoltaic panel surface. The anti-detachment component forms an abutment fit with the side of the photovoltaic panel to prevent the cleaning device from slipping off the inclined photovoltaic panel surface.

2. The cross-type photovoltaic panel cleaning device according to claim 1, characterized in that, The crossing device also includes a span detection sensor, which is installed on the fixed support rod near the lifting moving part to detect whether there is a photovoltaic panel below the lifting moving part; When the span detection sensor detects that the area below has changed from having no photovoltaic panels to having photovoltaic panels, the span detection sensor triggers a state switching signal. When either span detection sensor on either side of the same moving mechanism sends a state switching signal, all lifting moving parts switch between the lifting state and the suspension state.

3. The cross-type photovoltaic panel cleaning device according to claim 2, characterized in that, The lifting and moving component includes a rotating rod bracket, a lifting wheel, a first telescopic rod, and a controller. One end of the rotating rod bracket is hinged to the fixed support rod, and the lifting wheel is rotatably mounted on the other end of the rotating rod bracket for rolling in contact with the photovoltaic panel surface. Both ends of the first telescopic rod are hinged to the fixed support rod and the rotating rod bracket, respectively, and the first telescopic rod is electrically connected to the controller. The controller receives the state switching signal from the span detection sensor, drives the first telescopic rod to extend and retract, and thereby drives the rotating rod bracket to rotate around its hinge point with the fixed support rod.

4. The cross-type photovoltaic panel cleaning device according to claim 3, characterized in that, The lifting wheel is equipped with a first motor.

5. A cross-type photovoltaic panel cleaning device according to claim 1, characterized in that, The anti-detachment component includes a second telescopic rod fixed to the fixed support rod and a blocking frame installed at the bottom of the second telescopic rod. The telescopic direction of the second telescopic rod is perpendicular to the photovoltaic panel, and the second telescopic rod extends to make the blocking frame abut against the upper side of the photovoltaic panel.

6. A cross-type photovoltaic panel cleaning device according to claim 5, characterized in that, An auxiliary wheel is rotatably mounted on the side of the barrier away from the photovoltaic panel. The auxiliary wheel is used to move the cleaning device along the width direction of the photovoltaic panel by rolling during the installation and position adjustment of the cleaning device.

7. A cross-type photovoltaic panel cleaning device according to claim 1, characterized in that, The anti-detachment component also includes an anti-detachment wheel assembly, which has multiple sets and is fixedly installed at both ends of the main frame. The anti-detachment wheel assembly is located below the cleaning mechanism along the thickness direction of the photovoltaic panel. The anti-detachment wheel assembly includes at least two rollers, which respectively abut against the upper and lower sides of the photovoltaic panel along its tilt direction.

8. A cross-type photovoltaic panel cleaning device according to claim 1, characterized in that, Along the extension direction of the main frame, at least two sets of support ribs are installed at intervals on the main frame. Each support rib is fixedly connected to the main frame through a fixed connecting rod, and the two ends of the fixed connecting rod extend to the two ends of the main frame and are fixed to the moving mechanism at the end of the main frame.

9. A cross-type photovoltaic panel cleaning device according to claim 1, characterized in that, The cleaning mechanism includes a brush assembly and a second motor. The brush assembly is rotatably mounted on the main frame, and the second motor is connected to the brush assembly to drive it to rotate and clean.

10. A cross-type photovoltaic panel cleaning device according to claim 1, characterized in that, The driving components of the moving mechanism include a third motor and a speed control module. The third motor is driven by the walking pulley, and the speed control module is electrically connected to the third motor. The walking pulley includes a drive wheel body and an annular drive belt. The drive wheel body is driven by the third motor and is used to drive the annular drive belt to rotate cyclically. The outer surface of the annular drive belt abuts against the surface of the photovoltaic panel.

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