Photovoltaic module cleaning device

Abstract

The invention relates to the technical field of photovoltaic panel cleaning, in particular to a photovoltaic module cleaning device which comprises a water tank component, a hose arranged on the side face of the water tank component, a hard pipe component arranged on the side face of the hose and a cleaning head component arranged on the side face of the hard pipe component. The cleaning head component comprises a water spraying head which is connected with the hard pipe component and can spray water, a scraping plate capable of scraping accumulated snow on the surface of the photovoltaic panel is arranged in the water spraying head, and the cleaning head component integrates the water spraying head and the scraping plate, so that when the photovoltaic panel with accumulated snow on the surface is cleaned, the scraping plate can be used for scraping the accumulated snow firstly, and the scraping plate can be used for scraping the accumulated snow on the surface. The cleaning head component of the device integrates the water spraying head and the scraping plate, so that a worker does not need to carry more tools when cleaning the photovoltaic panel, the working process is simplified, and the labor intensity of the worker is reduced.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel cleaning technology, and in particular to a photovoltaic module cleaning device. Background Technology

[0002] The power generation efficiency of photovoltaic panels is affected by the cleanliness of the panels, so they need to be cleaned. Automatic cleaning equipment installed on photovoltaic panels is generally effective, but some areas may not be cleaned thoroughly, requiring manual cleaning. Manual cleaning requires a telescopic structure to adjust the length to accommodate photovoltaic panels of different sizes. At the same time, the manually operated cleaning device needs to be portable, compact, convenient, and easy to operate to meet the requirements of photovoltaic panel cleaning.

[0003] In winter, snow accumulates on solar panels, making surface cleaning crucial. Snow not only directly impacts power generation efficiency, causing economic losses to power plants, but can also damage the panel structure, leading to irreversible damage. However, cleaning snow differs from regular dust removal, requiring more steps. First, a soft plastic scraper is used to gently scrape from top to bottom. The remaining thin layer of snow is then melted with warm water and rinsed off. During the cleaning process, it's essential to avoid prying off the snow forcefully. Therefore, cleaning snow from solar panels requires more tools. There is a need to design a cleaning device that integrates a snow-scraping structure. However, when the water spraying device and the snow-scraping structure are integrated into the same cleaning head structure, there is indeed a risk of water nozzle blockage during the snow-scraping process. Loose dry snow, if squeezed into the water nozzle by the scraper during snow scraping, will accumulate inside and form a blockage. If accompanied by low temperatures, the dry snow will melt and refreeze, directly freezing the water nozzle. Wet snow or snow-ice mixtures, due to their high water content, are easy to stick to the scraper and the edge of the water nozzle during snow scraping. They freeze quickly at low temperatures, not only blocking the water nozzle but also potentially sticking to the scraper and making it unable to move.

[0004] Therefore, a cleaning device is needed that can protect the water nozzles while scraping away snow. Summary of the Invention

[0005] The purpose of this invention is to provide a photovoltaic module cleaning device, which integrates a snow scraping structure and protects the water spray nozzles during snow scraping.

[0006] The above-mentioned technical problems are solved by the following technical solution: The present invention proposes the following technical solution: a photovoltaic module cleaning device, which includes a water tank component, a hose disposed on the side of the water tank component, a rigid pipe component disposed on the side of the hose, and a cleaning head component disposed on the side of the rigid pipe component; The cleaning head component includes a water spray head connected to the rigid pipe component, which can spray water. The inside of the water spray head is provided with a scraper that can remove snow from the surface of the photovoltaic panel.

[0007] In a preferred embodiment of the photovoltaic module cleaning device of the present invention: the water tank component includes a water storage tank, the top of the water storage tank is provided with a flip cover, and a heater is provided inside the water storage tank.

[0008] In a preferred embodiment of the photovoltaic module cleaning device of the present invention: a water pump is provided at the bottom of the water storage tank, and the water pump is connected to the hose.

[0009] In a preferred embodiment of the photovoltaic module cleaning device of the present invention: the rigid pipe component includes a water supply pipe disposed on the side of the flexible hose, the water supply pipe being connected to the flexible hose, a holding post being disposed on the outer wall of the water supply pipe, and a bend being disposed at the end of the water supply pipe away from the flexible hose, the side of the bend being connected to the cleaning head component.

[0010] In a preferred embodiment of the photovoltaic module cleaning device of the present invention: the spray head is connected to the bend pipe, the bottom of the spray head is provided with a spray nozzle, and the spray nozzle is connected to the bend pipe.

[0011] In a preferred embodiment of the photovoltaic module cleaning device of the present invention: a compartment is provided at the bottom of the spray head, the scraper is disposed inside the compartment, and a switching structure is provided at the bottom of the scraper.

[0012] In a preferred embodiment of the photovoltaic module cleaning device of the present invention: a receiving groove is provided on the side of the scraper, and a first elastic member is provided in the receiving groove, the side of the first elastic member being connected to the water spray head.

[0013] In a preferred embodiment of the photovoltaic module cleaning device of the present invention: the switching structure includes a switching cylinder disposed at the bottom of the scraper, a switching column disposed inside the switching cylinder, a handle disposed at the bottom of the switching column, a retaining ring disposed on the outer wall of the switching column, the outer diameter of the retaining ring being the same as the inner diameter of the switching cylinder, and a second elastic member disposed on the outer wall of the switching column, the top of the second elastic member being connected to the retaining ring.

[0014] In a preferred embodiment of the photovoltaic module cleaning device of the present invention: a groove is provided at the bottom of the spray head, and the width of the groove is the same as the outer diameter of the switching cylinder.

[0015] In a preferred embodiment of the photovoltaic module cleaning device of the present invention: the outer wall of the scraper is provided with a through hole, the through hole and the switching column are located at the same position on the horizontal plane, and the bottom of the spray head is provided with a slot.

[0016] The beneficial effects of this invention are as follows: the cleaning head component of this device integrates a water spray head and a scraper, so that workers do not need to carry more tools when cleaning photovoltaic panels, and the workflow is simplified, reducing the labor intensity of workers. In addition, the scraper can protect the water spray system when scraping snow. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a structural schematic diagram of the water tank component in this invention.

[0019] Figure 3 This is a schematic diagram of the rigid tube component in this invention.

[0020] Figure 4 This is a schematic diagram of the cleaning head component structure in this invention.

[0021] Figure 5 This is a schematic diagram of the switching structure in this invention.

[0022] In the diagram: 1. Water tank component; 2. Hose; 3. Rigid pipe component; 4. Cleaning head component; 11. Water storage tank; 12. Flip-top; 13. Heater; 14. Water pump; 31. Water supply pipe; 32. Holding post; 33. Bend; 41. Spray head; 42. Spray nozzle; 43. Compartment; 44. Slide groove; 45. Scraper; 46. Receiving groove; 47. First elastic element; 48. Switching structure; 481. Switching cylinder; 482. Switching post; 483. Handle; 484. Snap ring; 485. Second elastic element; 451. Through hole; 411. Snap groove. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0024] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0025] Reference Figure 1 , refer to Figures 1-5 This embodiment provides a photovoltaic module cleaning device, including a water tank component 1, a flexible hose 2 disposed on the side of the water tank component 1, a rigid pipe component 3 disposed on the side of the flexible hose 2, and a cleaning head component 4 disposed on the side of the rigid pipe component 3. The water tank component 1 stores cleaning water inside. The water tank component 1 is connected to the flexible hose 2, the flexible hose 2 is connected to the rigid pipe component 3, and the rigid pipe component 3 is connected to the cleaning head component 4. The cleaning water can be guided from the flexible hose 2 into the rigid pipe component 3, and finally into the cleaning head component 4, and sprayed out from the cleaning head component 4 to clean the surface of the photovoltaic panel. The cleaning head component 4 includes a water spray head 41 connected to the rigid pipe component 3, which can spray water. The water spray head 41 is equipped with a scraper 45 that can scrape off the snow on the surface of the photovoltaic panel. The cleaning head component 4 integrates the water spray head 41 and the scraper 45. When cleaning photovoltaic panels with snow on the surface, the scraper 45 can be used to scrape off the snow first. However, since the snow is scraped off manually, there will inevitably be a thin layer of snow on the surface of the photovoltaic panel that cannot be completely scraped off. Moreover, if it is forcibly scraped off, it will inevitably damage the surface of the photovoltaic panel. Therefore, it is necessary to scrape off the snow with the scraper 45 first, and then use the water spray head 41 to spray warm water to melt and wash off the thin layer of snow. Because the cleaning head component 4 of this device integrates the water spray head 41 and the scraper 45, workers do not need to carry more tools when cleaning photovoltaic panels, and the workflow is simplified and the labor intensity of workers is reduced.

[0026] The water tank component 1 includes a water storage tank 11, a flip-top 12 on the top of the water storage tank 11, a heater 13 inside the water storage tank 11, and a water pump 14 at the bottom of the water storage tank 11. The water pump 14 is connected to a hose 2. Figure 2 As shown, the water storage tank 11 is equipped with a mobile power supply and stores cleaning water. The heater 13 can heat the cleaning water when powered on, so that the photovoltaic panel surface can be rinsed with warm water later. The water pump 14 can be turned on to transport water from the water storage tank 11 to the cleaning head component 4, and the water pump 14 can be turned off to stop the transport. The flip cover 12 can be opened to add water to the water storage tank 11. The cleaning head component 4 integrates the spray head 41 and the scraper 45 to realize the integrated function of "snow scraping compartment 43 + warm water rinsing compartment 43" of compartment 43. There is no need for the staff to carry multiple tools such as scraper 45 and water spray device, which simplifies the configuration of work equipment, reduces the cost of tool management and carrying, and the integrated structure allows the staff to complete the entire process of "snow scraping compartment 43 - snow melting compartment 43 - rinsing compartment 43" of compartment 43 with a single device. There is no need to frequently switch tools, shorten the single cleaning operation time, reduce labor intensity, and improve work efficiency.

[0027] Usage process: When cleaning photovoltaic panels with snow accumulation, the staff can hold the rigid pipe component 3 and use the scraper 45 on the cleaning head component 4 to scrape off the snow. At this time, the heater 13 can heat the cleaning water in the water storage tank 11. When the water reaches a suitable temperature, the heating is stopped. After the snow is scraped off, the water pump 14 can be used to spray the heated cleaning water in the water tank through the spray head 41 onto the surface of the photovoltaic panel to melt and wash away the thin layer of snow. This can clean the snow on the photovoltaic panel, protect the photovoltaic panel from damage, and ensure power generation efficiency.

[0028] Example 2, refer to Figures 1-5 This is the second embodiment of the present invention. Unlike the previous embodiment, the rigid pipe component 3 includes a water supply pipe 31 disposed on the side of the flexible hose 2. The water supply pipe 31 is connected to the flexible hose 2. A holding post 32 is disposed on the outer wall of the water supply pipe 31. A bend 33 is disposed at the end of the water supply pipe 31 away from the flexible hose 2. The side of the bend 33 is connected to the cleaning head component 4. Figure 3 As shown, the water supply pipe 31 can be configured as a telescopic structure, which allows the water supply pipe 31 to extend forward to reach hard-to-reach places. The grip post 32 is fixed to the outer wall of the water supply pipe 31. The grip post 32 is a protruding structure on the water supply pipe 31, which is convenient for the staff to grip. The cleaning water in the water storage tank 11 can flow from the hose 2 to the water supply pipe 31, and then flow through the bend 33 into the cleaning head component 4. The cleaning water is discharged from the cleaning head component 4 to spray the photovoltaic panel to clean the photovoltaic panel.

[0029] The spray head 41 is connected to the bend pipe 33. A spray nozzle 42 is located at the bottom of the spray head 41 and is connected to the bend pipe 33. The cleaning water flowing into the cleaning head component 4 is ultimately sprayed out from the spray nozzle 42 to clean the surface of the photovoltaic panel. Since snow needs to be scraped off the surface of the photovoltaic panel before rinsing, a scraper 45 is provided in the spray head 41. A compartment 43 is opened at the bottom of the spray head 41, and the scraper 45 is located inside the compartment 43. A switching structure 48 is provided at the bottom of the scraper 45. Figure 4 As shown, the scraper 45 can slide inside the compartment 43 towards the photovoltaic panel, or slide into the compartment 43. The switching structure 48 facilitates the adjustment of the scraper 45's position by the operator. Figure 4 In this configuration, the scraper 45 is positioned close to the inner wall of the compartment 43, while the water spray nozzle 42 is exposed, allowing water to be sprayed to clean the photovoltaic panels. Figure 5 In the middle, the scraper 45 extends outside the compartment 43 to scrape away the snow on the photovoltaic panel. As shown in the figure, when the scraper 45 extends outside the compartment 43, it also blocks the water nozzle 42. This protects the water nozzle 42 when scraping away the snow and prevents the water nozzle 42 from being blocked by the snow that is scraped off freezing.

[0030] Usage process: When the staff is cleaning the photovoltaic panels, the switching structure 48 can be used to first extend the scraper 45 outside the compartment 43 to scrape off the snow on the surface of the photovoltaic panels. After the snow is scraped off, the staff can retract the scraper 45 into the compartment 43. At this time, the water nozzle 42 is exposed and heated cleaning water can be sprayed to melt and wash the surface of the photovoltaic panels.

[0031] Example 3, referring to Figures 1-5 This is the third embodiment of the present invention. Unlike the previous embodiment, the scraper 45 has a receiving groove 46 on its side. A first elastic member 47 is provided in the receiving groove 46. The first elastic member 47 can be a spring. The first elastic member 47 is in a stretched state. The side of the first elastic member 47 is connected to the water spray head 41. The two ends of the first elastic member 47 are fixedly connected to the scraper 45 and the water spray head 41, respectively.

[0032] The switching structure 48 includes a switching cylinder 481 disposed at the bottom of the scraper 45. The switching cylinder 481 is fixedly connected to the bottom of the scraper 45. A switching post 482 is disposed inside the switching cylinder 481. The switching post 482 can slide up and down inside the switching cylinder 481. A handle 483 is disposed at the bottom of the switching post 482. Figure 5As shown, the surface of the handle 483 can be machined with friction grooves, which facilitates the operator's grip. A retaining ring 484 is provided on the outer wall of the switching column 482, the outer diameter of which is the same as the inner diameter of the switching cylinder 481. A second elastic element 485 is provided on the outer wall of the switching column 482, the top of which is connected to the retaining ring 484. The outer diameter of the switching column 482 is smaller than the inner diameter of the switching cylinder 481, thus creating a compartment between the switching column 482 and the switching cylinder 481. The second elastic element 485 is located within this compartment and can be a spring. The second elastic element 485 is in a compressed state, with both ends fixedly connected to the switching cylinder 481 and the retaining ring 484, respectively. A sliding groove 44 is provided at the bottom of the spray head 41, the width of which is the same as the outer diameter of the switching cylinder 481. The switching cylinder 481 can slide inside the sliding groove 44, which provides a path for the sliding of the switching cylinder 481. The scraper... The side receiving groove 46 of 45 houses the first elastic element 47 (in the stretched state), which provides the reset power for the scraper 45, ensuring that the scraper 45 can automatically fit against the inner wall of the compartment 43 when it retracts. The switching structure 48 works in conjunction with the switching column 482, the retaining ring 484, and the second elastic element 485 (in the compressed state). After the scraper 45 is extended, the switching column 482 can be inserted into the retaining groove 411 to achieve rigid limiting, preventing the scraper 45 from sliding under force during snow scraping and ensuring the stability of snow scraping. After snow scraping is completed, pulling the handle 483 can release the limiting, and the first elastic element 47 assists the scraper 45 to retract quickly, improving the reliability and efficiency of mode switching. When the scraper 45 is extended, it completely blocks the water spray nozzle 42. Combined with the limiting fixation of the switching column 482, it can effectively prevent snow and ice from entering the water spray nozzle 42, completely avoiding the risk of blockage from the structure. When the scraper 45 is retracted, it is hidden in the compartment 43, reducing the contact between the scraper 45 and the external environment, reducing the probability of scraper 45 wear and deformation, and extending the service life of the device.

[0033] The outer wall of the scraper 45 has a through hole 451, which is located at the same position as the switching column 482 on the horizontal plane. The bottom of the spray head 41 has a slot 411, such as... Figure 5 As shown, the switching post 482 can pass through the through hole 451, and the end of the switching post 482 extends out of the through hole 451 and inserts into the slot 411. This can limit the scraper 45 so that the scraper 45 cannot slide in the compartment 43.

[0034] Usage: Under normal circumstances, the scraper 45 is retracted inside the compartment 43 for protection. When cleaning photovoltaic panels with snow accumulation on the surface, the operator can first hold the handle 483 and push the scraper 45 away from the bend 33. When the scraper 45 slides to the same position as the switching cylinder 481 and the slot 411, the scraper 45 extends the water nozzle 41 and blocks the water spray outlet 42. The second elastic element 485 will push the switching column 482 towards the slot 411, so the switching column 482 is inserted into the slot 411, and the scraper 45 cannot slide. At this time, the scraper 45 can be used to scrape off the snow on the surface of the photovoltaic panel, while protecting the water spray outlet 42 from the scraped snow. After the snow accumulates, the staff pulls the handle 483 away from the slot 411, causing the switching column 482 to disengage from the slot 411. At this time, the scraper 45 can be pushed into the compartment 43 until the compartment is retracted into the compartment 43. Then the handle 483 can be released. Since the second elastic element 485 will continuously apply pressure to the upper wall of the compartment 43 on the switching column 482, there will be friction between the switching column 482 and the compartment 43. The entire scraper 45 will remain retracted inside the compartment 43. At this time, the water nozzle 42 is exposed. The water nozzle 42 can be used to spray cleaning water. The sprayed water is heated by the water tank component 1 and used to melt and wash the thin layer of snow.

[0035] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A photovoltaic module cleaning apparatus, characterized by: include, Water tank component (1), hose (2) disposed on the side of the water tank component (1), rigid pipe component (3) disposed on the side of the hose (2) and cleaning head component (4) disposed on the side of the rigid pipe component (3); The cleaning head component (4) includes a water spray head (41) connected to the rigid pipe component (3) and capable of spraying water. The water spray head (41) is provided with a scraper (45) inside to scrape snow off the surface of the photovoltaic panel.

2. The photovoltaic module cleaning apparatus of claim 1, wherein: The water tank component (1) includes a water storage tank (11), the top of which is provided with a flip cover (12), and the interior of which is provided with a heater (13).

3. The photovoltaic module cleaning apparatus of claim 2, wherein: A water pump (14) is installed at the bottom of the water storage tank (11), and the water pump (14) is connected to the hose (2).

4. The photovoltaic module cleaning apparatus of claim 3, wherein: The rigid pipe component (3) includes a water supply pipe (31) disposed on the side of the flexible hose (2), the water supply pipe (31) is connected to the flexible hose (2), the outer wall of the water supply pipe (31) is provided with a grip post (32), and a bend (33) is provided at the end of the water supply pipe (31) away from the flexible hose (2), and the side of the bend (33) is connected to the cleaning head component (4).

5. The photovoltaic module cleaning apparatus of claim 4, wherein: The spray head (41) is connected to the bend (33), and a spray nozzle (42) is provided at the bottom of the spray head (41), which is connected to the bend (33).

6. The photovoltaic module cleaning apparatus of claim 5, wherein: The bottom of the spray head (41) is provided with a compartment (43), the scraper (45) is provided inside the compartment (43), and the bottom of the scraper (45) is provided with a switching structure (48).

7. The photovoltaic module cleaning apparatus of claim 6, wherein: The scraper (45) has a receiving groove (46) on its side, and a first elastic element (47) is provided in the receiving groove (46). The side of the first elastic element (47) is connected to the spray head (41).

8. The photovoltaic module cleaning apparatus of claim 7, wherein: The switching structure (48) includes a switching cylinder (481) disposed at the bottom of the scraper (45). A switching column (482) is disposed inside the switching cylinder (481). A handle (483) is disposed at the bottom of the switching column (482). A retaining ring (484) is disposed on the outer wall of the switching column (482). The outer diameter of the retaining ring (484) is the same as the inner diameter of the switching cylinder (481). A second elastic member (485) is disposed on the outer wall of the switching column (482). The top of the second elastic member (485) is connected to the retaining ring (484).

9. The photovoltaic module cleaning apparatus of claim 8, wherein: The bottom of the spray head (41) is provided with a groove (44), the width of which is the same as the outer diameter of the switching cylinder (481).

10. The photovoltaic module cleaning apparatus of claim 9, wherein: The outer wall of the scraper (45) is provided with a through hole (451), the through hole (451) and the switching column (482) are located at the same position on the horizontal plane, and the bottom of the spray head (41) is provided with a slot (411).

Images