Photovoltaic cleaning device convenient to disassemble and assemble

Abstract

The invention relates to the technical field of photovoltaics, and discloses a photovoltaic cleaning device convenient to disassemble and assemble, which comprises a sectional framework, the sectional framework comprises a lower-section rack, a middle-section rack, an upper-section rack, a framework circular tube and a framework extension bar, the middle-section rack takes the framework circular tube as a core support beam and is connected with the lower-section rack and the upper-section rack, and the framework extension bar is connected with the lower-section rack and the upper-section rack; the frame extension rods are arranged at the two ends of the frame round pipe, and the cleaning structure comprises a cleaning motor assembly, a synchronous belt structure, a plurality of cleaning brushes, a cleaning spray pipe and a spray pipe extension pipe; the photovoltaic cleaning device is mainly designed to adapt to mountain photovoltaic and small industrial and commercial photovoltaic, the photovoltaic cleaning device can be directly placed on photovoltaic glass to clean the photovoltaic, the segmented framework can be adjusted through combination of the framework round pipes and the framework extension rods, the device can flexibly adapt to photovoltaic panel arrays with different spans, and the photovoltaic cleaning device is convenient to use. Due to the detachable design, the transportation, disassembly and assembly difficulty of the device is greatly reduced, the device is particularly suitable for mountainous regions and other scenes with inconvenient traffic, and manual carrying and on-site assembly are facilitated.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic technology, and in particular to a photovoltaic cleaning device that is easy to assemble and disassemble. Background Technology

[0002] Currently, the cleaning of solar panels mainly involves manual cleaning equipment (such as brushes and high-pressure water guns), semi-automatic cleaning equipment (such as tracked sweepers and engineering chassis cleaning vehicles), and fully automatic cleaning systems (such as drone cleaning solutions and intelligent robots). Each has its own advantages and disadvantages, but they are not well-suited for mountainous solar panels and small-scale industrial and commercial solar panels with uneven ground, large tilt angles of solar panels, high installation slopes, and inconsistent layouts.

[0003] Specifically, manual cleaning is costly, inefficient, and poses risks to worker safety. Conventional tracked sweepers have specific requirements regarding the installation angle, slope, and precision of the solar panels, leading to various adaptability issues related to anti-slip properties, walking synchronization, and water usage, thus affecting cleaning speed and quality. Engineering chassis cleaning vehicles are limited by their large size, the need for relatively flat work sites, and the large spacing between photovoltaic strings. Drone cleaning primarily uses high-pressure water guns, requiring the use of detergents to soften the solar panels before rinsing, which causes environmental pollution and has limited cleaning effectiveness. Furthermore, due to the load-bearing capacity of the solar panels, only small-sized intelligent robots can be used, resulting in unsatisfactory practical performance. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of conventional photovoltaic cleaning methods in the prior art, which are not well-suited for mountain photovoltaic and small-scale industrial and commercial photovoltaic applications, and to propose a photovoltaic cleaning device that is easy to install and disassemble.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A photovoltaic cleaning device that is easy to assemble and disassemble includes: The segmented frame includes a lower frame, a middle frame, an upper frame, frame tubes, and frame extension rods. The middle section frame uses the frame tube as the core support beam to connect the lower section frame and the upper section frame. The frame extension rod is set at both ends of the frame tube and is located on the outside of the lower section frame and the upper section frame. The overall length of the segmented frame can be adjusted by adjusting the position of the lower section frame and the upper section frame installed on the frame tube or the frame extension rod. The cleaning structure includes a cleaning motor assembly, a timing belt structure, multiple cleaning brushes, a cleaning nozzle, and a nozzle extension tube. The cleaning motor assembly is installed at the end of the upper frame and drives multiple cleaning brushes to rotate relative to each other synchronously via a synchronous belt structure. The cleaning nozzle and the nozzle extension tube are coaxially connected, and the overall length of the two can be adjusted through the nozzle extension tube. The cleaning brush includes a brush roller and a brush sleeve. The brush sleeve is slidably fitted on the outside of the brush roller, and its own length can be adjusted.

[0006] As a further aspect of the present invention, the device also includes a power structure; The power structure includes a walking drive mechanism assembly, a walking power transmission shaft, a lower walking mechanism assembly, a middle walking mechanism assembly, and an upper walking mechanism assembly; The walking drive mechanism assembly is located in the middle of the middle section frame. As the core power unit, it transmits power from the walking drive mechanism assembly to the lower walking mechanism assembly, the middle walking mechanism assembly, and the upper walking mechanism assembly through the walking power transmission shaft, ensuring that the walking speed of each section is completely consistent.

[0007] As a further aspect of the present invention, the device also includes a protective correction structure; The protection and correction structure includes a dynamic deviation correction structure, a travel limit protection structure, and an electrical integrated control structure. The dynamic deviation correction structure includes a guide wheel set on the upper frame and a compensation wheel set on the lower frame. The direction of movement of the guide wheel is parallel to the direction of the axis of the frame tube, and the direction of movement of the compensation wheel is perpendicular to the plane of the axis of the frame tube. The guide wheel and the compensation wheel cooperate with each other to sense the position deviation of the photovoltaic panel frame in real time during the movement and automatically correct the movement trajectory through the mechanical structure to avoid the device from jamming or tilting. The travel limit protection structure includes at least one travel switch, which is located at both ends of the middle frame. When the device runs to the limit position of the photovoltaic panel array, the travel switch will automatically trigger a shutdown. An electrical integrated control structure includes at least a control box that integrates all electrical systems and can be started with only an external power supply.

[0008] As a further embodiment of the present invention, the brush sleeve includes a spiral brush body, a connecting frame, and a soft sleeve. A return spring is installed inside the spiral brush body to enable the spiral brush body to have a spring-loaded retraction function. The spiral brush body is connected to the soft sleeve through the connecting frame, and the soft sleeve is installed on the brush roller.

[0009] As a further embodiment of the present invention, the synchronous belt structure includes a gear structure composed of multiple meshing gears and multiple transmission belt structures. The cleaning motor assembly transmits power to the transmission belt structure through the gear structure, and then the transmission belt structure transmits the power to the brush roller.

[0010] As a further aspect of the present invention, both the cleaning nozzle and the extended nozzle are equipped with detachable nozzles, which can spray cleaning water in a fan-shaped mist onto the surface of the cleaning brush through the detachable nozzles at a specific angle, ensuring the wetness of the cleaning brush and accurately rinsing away dirt.

[0011] As a further embodiment of the present invention, the walking drive mechanism assembly includes a walking drive motor and a walking reducer, wherein the walking reducer adopts a worm gear transmission structure.

[0012] As a further embodiment of the present invention, the lower walking mechanism assembly, the middle walking mechanism assembly, and the upper walking mechanism assembly all adopt a tracked structure.

[0013] As a further embodiment of the present invention, the frame tube, cleaning brush, cleaning nozzle and walking power transmission shaft all adopt a splicing structure, with the splicing point being the middle section of the frame, so that the device can be split into two sections along the middle section of the frame.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This application primarily designs for mountainous and small-scale industrial / commercial photovoltaic systems. It can be directly placed on photovoltaic glass for cleaning. The segmented structure, adjustable through a combination of frame tubes and extension rods, allows for flexible adaptation to photovoltaic panel arrays of varying spans, significantly improving its versatility and adaptability to different scenarios. This avoids the cost and time constraints of custom-designed devices for photovoltaic panels of different sizes. Within the cleaning structure, the relative rotation of multiple cleaning brushes efficiently removes stubborn dirt from the photovoltaic panel surface while ensuring even force distribution and reducing wear. The adjustable length design of the cleaning nozzle and brush sleeves ensures precise matching between the cleaning range and the photovoltaic panel size, avoiding… The device eliminates blind spots in cleaning, ensuring the integrity and consistency of the cleaning effect and improving cleaning efficiency and quality. The overall structure of the device is modular and detachable. When it needs to be disassembled, simply remove the connectors at the joints, and the device can be split into two sections along the middle frame. Each section can be transported and stored independently, which greatly reduces the difficulty of transportation and disassembly. It is especially suitable for mountainous and other inaccessible environments, facilitating manual handling and on-site assembly. The structural design at the joints ensures overall rigidity and strength. After disassembly, each component can still be stored and maintained independently, and damaged components can be replaced individually, reducing maintenance costs and downtime, and improving the practicality and economy of the device. Attached Figure Description

[0015] Figure 1 This is a top view schematic diagram of the overall structure of a photovoltaic cleaning device that is easy to assemble and disassemble according to the present invention; Figure 2 This is a bottom view of the overall structure of a photovoltaic cleaning device that is easy to assemble and disassemble, as proposed in this invention. Figure 3This invention proposes a photovoltaic cleaning device that is easy to assemble and disassemble. Figure 1 Enlarged view of point A in the middle; Figure 4 This invention proposes a photovoltaic cleaning device that is easy to assemble and disassemble. Figure 1 Enlarged view of point B in the middle; Figure 5 This invention proposes a photovoltaic cleaning device that is easy to assemble and disassemble. Figure 1 Enlarged view of point C in the middle; Figure 6 This invention proposes a photovoltaic cleaning device that is easy to assemble and disassemble. Figure 2 Enlarged view of point D; Figure 7 This invention proposes a photovoltaic cleaning device that is easy to assemble and disassemble. Figure 2 Enlarged diagram of point E in the middle.

[0016] In the diagram: 100, Segmented frame; 110, Lower frame; 120, Middle frame; 130, Upper frame; 140, Frame tube; 150, Frame extension rod; 200, Cleaning structure; 210, Cleaning motor assembly; 220, Synchronous belt structure; 230, Cleaning brush; 231, Brush roller; 232, Brush sleeve; 240, Cleaning nozzle; 250, Spray nozzle extension tube; 260, Detachable nozzle; 300, Dynamic... Force structure; 310, walking drive mechanism assembly; 320, walking power transmission shaft; 330, lower walking mechanism assembly; 340, middle walking mechanism assembly; 350, upper walking mechanism assembly; 400, protection and correction structure; 410, deviation correction structure; 411, guide wheel; 412, compensation wheel; 420, travel limit protection structure; 421, limit switch; 430, electrical integrated control structure; 431, control box. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] like Figure 1 and Figure 2 As shown, a photovoltaic cleaning device that is easy to assemble and disassemble includes: a segmented frame 100, which includes a lower frame 110, a middle frame 120, an upper frame 130, a frame tube 140, and a frame extension rod 150. The middle frame 120 uses the frame tube 140 as a through-type core support beam. The two ends of the frame tube 140 are rigidly connected to the lower frame 110 and the upper frame 130 through detachable locking structures (such as clamps and bolt connectors). The frame extension rod 150 is set at both ends of the frame tube 140 and is located on the outside of the lower frame 110 and the upper frame 130. The lower frame 110 and the upper frame 130 can be installed on the frame tube 140 body or the frame extension rod 150 through sliding adjustment, thereby realizing stepless or stepped adjustment of the overall length of the segmented frame 100 to adapt to photovoltaic panel arrays of different spans. The cleaning structure 200 includes a cleaning motor assembly 210, a timing belt structure 220, multiple cleaning brushes 230, a cleaning nozzle 240, and a nozzle extension tube 250. The cleaning motor assembly 210 is installed at the end of the upper frame 130 and drives multiple cleaning brushes 230 to rotate relative to each other through the synchronous belt structure 220. The cleaning nozzle 240 and the nozzle extension tube 250 are coaxially connected. The overall length of the two can be adjusted by the nozzle extension tube 250 to make it perfectly match the width of the photovoltaic panel. The cleaning brush 230 includes a brush roller 231 and a brush sleeve 232. The brush sleeve 232 is slidably sleeved on the outside of the brush roller 231 and its length can be adjusted.

[0019] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: The invention is made of high-strength aluminum alloy and carbon fiber, resulting in a lightweight device. The segmented frame 100 is centered on the middle frame 120, and is connected to the lower frame 110 and the upper frame 130 by the frame tube 140, forming a stable three-section load-bearing structure. The combination and adjustment of the frame tube 140 and the frame extension rod 150 allow the device to flexibly adapt to photovoltaic panel arrays of different spans, greatly improving the device's versatility and scene adaptability, and avoiding the cost and time required to customize the device for photovoltaic panels of different sizes. In the cleaning structure 200, the relative rotation of multiple cleaning brushes 230 can efficiently remove stubborn dirt from the surface of the photovoltaic panel, while ensuring that the brushes are evenly stressed and reducing wear. The adjustable length design of the cleaning nozzle 240 and the brush sleeve 232 ensures a precise match between the cleaning range and the size of the photovoltaic panel, avoids blind spots, guarantees the integrity and consistency of the cleaning effect, and improves cleaning efficiency and quality.

[0020] like Figure 2 , Figure 3 , Figure 4 As shown, this device also includes a power structure 300; The power structure 300 includes a walking drive mechanism assembly 310, a walking power transmission shaft 320, a lower walking mechanism assembly 330, a middle walking mechanism assembly 340, and an upper walking mechanism assembly 350. The walking drive mechanism assembly 310 is located in the middle of the middle frame 120. The central arrangement effectively balances the power distribution of the lower, middle and upper walking mechanisms, fundamentally avoiding the problem of device deviation caused by power imbalance. The walking power transmission shaft 320 is a through-type transmission shaft. The two ends of the walking power transmission shaft 320 are connected to the drive wheels of the lower walking mechanism assembly 330, the middle walking mechanism assembly 340 and the upper walking mechanism assembly 350, respectively. After the walking drive mechanism assembly 310 is started, the power is synchronously transmitted to the drive wheels of the three walking mechanisms through the walking power transmission shaft 320, so that the three walking mechanisms operate synchronously at the same linear speed, ensuring the straightness and stability of the overall walking trajectory of the device. The three-section walking mechanism design allows the device to adapt to different sections of the photovoltaic panel array in sections. By dispersing the walking pressure, it effectively reduces the load on the photovoltaic panel frame of a single walking mechanism and extends the service life of the photovoltaic panel. like Figure 2 As shown, this device also includes a protection and correction structure 400; The protection and correction structure 400 includes a dynamic deviation correction structure 410, a travel limit protection structure 420, and an electrical integrated control structure 430. like Figure 5 and Figure 6 As shown, the dynamic deviation correction structure 410 includes a guide wheel 411 mounted on the upper frame 130 and a compensation wheel 412 mounted on the lower frame 110. The guide wheel 411 moves in a direction parallel to the axis of the frame tube 140, and the compensation wheel 412 moves in a direction perpendicular to the plane of the axis of the frame tube 140. The guide wheel 411 and the compensation wheel 412 cooperate with each other to sense the position deviation of the photovoltaic panel frame in real time during the movement. The mechanical structure automatically corrects the movement trajectory, avoiding device jamming, tilting or even damage caused by trajectory deviation, and greatly improving the stability and safety of operation. like Figure 4 and Figure 7 As shown, the travel limit protection structure 420 includes at least a travel switch 421. The travel switch 421 is located at both ends of the middle frame 120. When the device runs to the limit position of the photovoltaic panel array, the travel switch 421 will automatically trigger the shutdown without the need for real-time monitoring by the operator. This reduces the labor intensity of the operator and effectively avoids the risk of the device running off the track and colliding with the edge of the photovoltaic panel, thus ensuring the safety of the device and the photovoltaic panel array. like Figure 1 and Figure 5As shown, the electrical integrated control structure 430 includes at least a control box 431. The control box 431 integrates all electrical systems and can be started with only an external power supply. The highly integrated design of the control box 431 greatly simplifies the on-site wiring and debugging process, reduces electrical fault points, facilitates later maintenance and fault diagnosis, and improves the ease of use and reliability of the device.

[0021] like Figure 4 As shown, the brush sleeve 232 includes a spiral brush body, a connecting frame, and a soft sleeve. The spiral brush body is made of nylon, which has moderate hardness and will not damage the photovoltaic glass. A return spring is installed inside the spiral brush body, which enables the spiral brush body to have a spring-loaded retraction function. The spiral brush body is connected to the soft sleeve through the connecting frame. The soft sleeve is installed on the brush roller 231. The soft sleeve is made of elastic material or cloth that allows deformation and is partially fixedly connected to the brush roller 231.

[0022] like Figure 3 and Figure 6 As shown, the synchronous belt structure 220 includes a gear structure composed of multiple meshing gears and multiple transmission belt structures. The cleaning motor assembly 210 transmits power to the transmission belt structure through the gear structure, and then the transmission belt structure transmits the power to the brush roller 231.

[0023] like Figure 4 and Figure 7 As shown, both the cleaning nozzle 240 and the nozzle extension tube 250 are equipped with detachable nozzles 260. The detachable nozzles 260 at a specific angle can spray cleaning water in a fan-shaped mist onto the surface of the cleaning brush 230, which not only ensures the wetness of the cleaning brush 230, but also accurately washes away dirt and avoids water waste. The coaxial connection design of the nozzle and the nozzle extension tube 250 allows the overall length of the cleaning nozzle 240 to be flexibly adjusted to adapt to photovoltaic panels of different sizes, ensuring that the water spray range and the cleaning range are completely matched, with no dead corners in the cleaning.

[0024] like Figure 1 and Figure 4 As shown, the walking drive mechanism assembly 310 includes a walking drive motor and a walking reducer. The walking reducer adopts a worm gear transmission structure. The worm gear transmission structure has a self-locking characteristic. When the walking drive motor stops running, the meshing of the worm wheel and the worm can prevent the walking power transmission shaft 320 from reversing, preventing the device from sliding due to gravity or external force.

[0025] like Figure 2 , Figure 6 , Figure 7As shown, the lower walking mechanism assembly 330, the middle walking mechanism assembly 340, and the upper walking mechanism assembly 350 all adopt a tracked structure, which consists of a drive wheel, a driven wheel, a tension wheel, and a rubber track. The drive wheel is connected to the walking power transmission shaft 320. The driven wheel and the tension wheel are used to support and tension the track. The inner surface of the track meshes with the wheel teeth, and the outer surface contacts the photovoltaic panel frame. The width of the track is greater than the contact width of the wheel structure, which can effectively distribute the weight of the device and the operating pressure.

[0026] like Figure 4 and Figure 7 As shown, the frame tube 140, cleaning brush 230, cleaning nozzle 240, and walking power transmission shaft 320 all adopt a splicing structure, with the splicing point being the middle frame 120. This allows the device to be disassembled into two sections along the middle frame 120. Specifically, the two sections of each component are connected by flanges, bolts, or quick-connect couplings. When it is necessary to disassemble the device, simply remove the connecting parts at the splicing point to separate the device into two sections along the middle frame 120. Each section can be transported and stored independently, which greatly reduces the difficulty of transporting and disassembling the device. It is especially suitable for scenarios with inconvenient transportation, such as mountainous areas, and is convenient for manual handling and on-site assembly. The structural design at the splicing point ensures the overall rigidity and strength. After disassembly, each component can still be stored and maintained independently, and damaged components can be replaced individually, reducing maintenance costs and downtime, and improving the practicality and economy of the device.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A photovoltaic cleaning device that is easy to assemble and disassemble, characterized in that, include: The segmented frame (100) includes a lower frame (110), a middle frame (120), an upper frame (130), a frame tube (140), and a frame extension rod (150). The middle frame (120) uses the frame tube (140) as the core support beam to connect the lower frame (110) and the upper frame (130). The frame extension rod (150) is set at both ends of the frame tube (140) and is located on the outside of the lower frame (110) and the upper frame (130). The overall length of the segmented frame (100) can be adjusted by adjusting the position of the lower frame (110) and the upper frame (130) installed on the frame tube (140) or the frame extension rod (150). The cleaning structure (200) includes a cleaning motor assembly (210), a timing belt structure (220), multiple cleaning brushes (230), a cleaning nozzle (240), and a nozzle extension tube (250). The cleaning motor assembly (210) is installed at the end of the upper frame (130) and drives multiple cleaning brushes (230) to rotate relative to each other through a synchronous belt structure (220). The cleaning nozzle (240) and the nozzle extension tube (250) are coaxially connected. The overall length of the two can be adjusted through the nozzle extension tube (250). The cleaning brush (230) includes a brush roller (231) and a brush sleeve (232). The brush sleeve (232) is slidably sleeved on the outside of the brush roller (231), and its length can be adjusted.

2. The photovoltaic cleaning device that is easy to assemble and disassemble according to claim 1, characterized in that, It also includes a power structure (300); The power structure (300) includes a walking drive mechanism assembly (310), a walking power transmission shaft (320), a lower walking mechanism assembly (330), a middle walking mechanism assembly (340), and an upper walking mechanism assembly (350). The walking drive mechanism assembly (310) is located in the middle of the middle frame (120) as the core power unit. The power of the walking drive mechanism assembly (310) is synchronously transmitted to the lower walking mechanism assembly (330), the middle walking mechanism assembly (340) and the upper walking mechanism assembly (350) through the walking power transmission shaft (320) to ensure that the walking speed of each section is completely consistent.

3. The photovoltaic cleaning device that is easy to assemble and disassemble according to claim 1, characterized in that, It also includes a protective correction structure (400). The protection and correction structure (400) includes a dynamic deviation correction structure (410), a travel limit protection structure (420), and an electrical integrated control structure (430). The dynamic deviation correction structure (410) includes a guide wheel (411) set on the upper frame (130) and a compensation wheel (412) set on the lower frame (110). The direction of movement of the guide wheel (411) is parallel to the axis of the frame tube (140), and the direction of movement of the compensation wheel (412) is perpendicular to the plane of the axis of the frame tube (140). The guide wheel (411) and the compensation wheel (412) cooperate with each other to sense the position deviation of the photovoltaic panel frame in real time during the walking process, and automatically correct the walking trajectory through the mechanical structure to avoid the device from jamming or tilting. The travel limit protection structure (420) includes at least a travel switch (421). The travel switch (421) is located at both ends of the middle frame (120). When the device runs to the limit position of the photovoltaic panel array, the travel switch (421) will automatically trigger the shutdown. An electrical integrated control structure (430) includes at least a control box (431) that integrates all electrical systems and can be started with only an external power supply.

4. The photovoltaic cleaning device that is easy to assemble and disassemble according to claim 1, characterized in that, The brush sleeve (232) includes a spiral brush body, a connecting frame and a soft sleeve. A return spring is installed inside the spiral brush body to enable the spiral brush body to have a spring-loaded retraction function. The spiral brush body is connected to the soft sleeve through the connecting frame, and the soft sleeve is installed on the brush roller (231).

5. The photovoltaic cleaning device that is easy to assemble and disassemble according to claim 1, characterized in that, The synchronous belt structure (220) includes a gear structure consisting of multiple meshing gears and multiple transmission belt structures. The cleaning motor assembly (210) transmits power to the transmission belt structure through the gear structure, and then the transmission belt structure transmits the power to the brush roller (231).

6. The photovoltaic cleaning device that is easy to assemble and disassemble according to claim 1, characterized in that, Both the cleaning nozzle (240) and the nozzle extension tube (250) are equipped with detachable nozzles (260), which can spray cleaning water in a fan-shaped mist onto the surface of the cleaning brush (230) through the detachable nozzles (260) at a specific angle, ensuring the wetness of the cleaning brush (230) and accurately rinsing away dirt.

7. A photovoltaic cleaning device that is easy to assemble and disassemble according to claim 2, characterized in that, The walking drive mechanism assembly (310) includes a walking drive motor and a walking reducer, and the walking reducer adopts a worm gear transmission structure.

8. A photovoltaic cleaning device that is easy to assemble and disassemble according to claim 2, characterized in that, The lower walking mechanism assembly (330), the middle walking mechanism assembly (340), and the upper walking mechanism assembly (350) all adopt a tracked structure.

9. A photovoltaic cleaning device that is easy to assemble and disassemble according to claim 1, characterized in that, The frame tube (140), cleaning brush (230), cleaning nozzle (240) and walking power transmission shaft (320) all adopt a splicing structure, with the splicing point being the middle frame (120), so that the device can be split into two sections along the middle frame (120).

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