A photovoltaic cleaning device

Abstract

This application relates to the field of solar photovoltaics, and particularly to a photovoltaic cleaning device, which includes a base, a mounting plate, a connecting member, a support member, and a cleaning device. The mounting plate is connected to the base and is used for mounting a photovoltaic panel; the connecting member is located between the base and the mounting plate, and is used to move the mounting plate in a direction away from the base when the overall mass of the mounting plate decreases; the support member is installed on the base and is used to support the cleaning device; the cleaning device is used to remove the snow on the photovoltaic panel layer by layer. This application has the effect of maximizing the snow removal effect of the snow scraping tool and ensuring that the snow scraping tool does not scratch the solar cells.

Description

Technical Field

[0001] This application relates to the technical field of solar photovoltaics, and particularly to a photovoltaic cleaning device. Background Art

[0002] Photovoltaic power generation is based on the principle of the photovoltaic effect, using solar cells to directly convert solar energy into electrical energy. Solar cells are installed outdoors. Due to the changeable weather, sundries will cover the surface of solar cells, resulting in a reduction in the efficiency of converting solar energy into electrical energy by solar cells. Therefore, it is necessary to clean the solar cells.

[0003] Currently, after solar cells are covered with snow, in the prior art, generally a scraper is used to remove the snow on the surface of solar cells. However, when the covered snow is thick, the scraper cannot scrape the snow on the solar cells cleanly. Therefore, it is necessary to scrape the snow multiple times, and continuous multiple snow scraping is likely to damage the solar cells.

[0004] Regarding the above related technologies, there are defects that the scraper cannot scrape the snow on the solar cells cleanly or will damage the solar cells. Summary of the Invention

[0005] In order to maximize the snow removal effect of the snow scraping tool and ensure that the snow scraping tool does not damage the solar cells, this application provides a photovoltaic cleaning device.

[0006] A photovoltaic cleaning device provided by this application adopts the following technical solutions:

[0007] A photovoltaic cleaning device includes:

[0008] A base;

[0009] A mounting plate, the mounting plate is connected to the base and the mounting plate is used to mount a photovoltaic panel;

[0010] A connecting member, the connecting member is located between the base and the mounting plate. The connecting member includes a fixed seat, a first connecting rod and a first spring. The fixed seat is mounted on the base. A first sliding groove for the first connecting rod to slide in the vertical direction is provided on the upper end surface of the fixed seat, and the groove wall of the first sliding groove is in sliding contact with the peripheral wall of the first connecting rod. One end of the first connecting rod is connected to the mounting plate, the other end of the first connecting rod is connected to the first spring, and the end of the first spring far from the first connecting rod is connected to the groove wall of the first sliding groove. A resistance block is provided on the groove wall of the first sliding groove, and a first conductive block electrically connected to the photovoltaic panel is provided on the peripheral wall of the first connecting rod;

[0011] A support member, the support member includes a first support plate and a second support plate, the first support plate and the second support plate are disposed opposite to each other on the base, and the mounting plate is located between the first support plate and the second mounting plate;

[0012] A cleaning device, the cleaning device includes a connecting frame, a slider, a rotating rod, a cleaning roller, a first driving member and a second driving member. There are two connecting frames, and the two connecting frames are located on both sides of the mounting plate. The connecting frame is parallel to the mounting plate, and both ends of the connecting frame are connected to the first support plate and the second support plate respectively. There are two sliders, and the two sliders are respectively slidably connected to the two connecting frames. The rotating rod is located on the upper end surface of the mounting plate, and both ends of the rotating rod are respectively rotatably connected to the two sliders. The cleaning roller is sleeved on the rotating rod. The first driving member is installed on the connecting frame and is used to drive the slider to reciprocate on the connecting frame. The second driving member is installed on the slider and is connected to the rotating rod. The second driving member is used to drive the rotating rod to rotate. Both the first driving member and the second driving member are electrically connected to one end of the resistance block away from the mounting plate.

[0013] By adopting the above technical solution, when the photovoltaic panel is covered with snow, the overall load of the mounting plate increases, thereby driving the first connecting rod to move vertically downward. At this time, the first spring is in a compressed state. At the same time, the first conductive block on the first connecting rod abuts against the resistance block, so that the first driving member drives the slider to reciprocate on the connecting frame, and the second driving member drives the rotating rod to rotate, thereby driving the cleaning roller to reciprocate in a direction parallel to the photovoltaic panel and rotate along its own axis, so that the cleaning roller cleans the outermost layer of snow on the photovoltaic panel; Since the snow on the photovoltaic panel decreases, the overall mass on the mounting plate decreases, so the return spring resets a part, thereby driving the photovoltaic panel to move in the direction close to the cleaning roller, and then the cleaning roller continues to clean the outermost layer of snow on the photovoltaic panel at this time, repeating the above operation, so as to realize the cleaning of the photovoltaic panel by the cleaning roller and reduce the probability of scratching the photovoltaic panel; In addition, as the photovoltaic panel rises, the first conductive block on the connecting rod rises accordingly. Therefore, the length of the resistance connected to the circuit increases, so the resistance of the entire circuit increases, and the power of the first driving member and the second driving member decreases, and the moving speed of the slider and the speed of the cleaning roller both decrease. Therefore, the closer the photovoltaic panel is to the cleaning roller, the slower the moving speed of the slider and the rotation speed of the cleaning roller are, so the probability of the cleaning roller scratching the photovoltaic panel is further reduced.

[0014] Optionally, the mounting plate is inclined along the direction close to the first support plate, and the second driving member drives the rotating rod to rotate in a direction away from the first support plate.

[0015] By adopting the above technical solution, when the cleaning roller cleans the snow on the photovoltaic panel, since the photovoltaic panels are generally inclined, the cleaning roller is arranged to rotate in a direction away from the first support plate, so that the cleaning roller sweeps the snow on the photovoltaic panel along the inclined direction of the photovoltaic panel, making it easier for the snow to slide off the photovoltaic panel and further improving the cleaning effect of the cleaning roller on the photovoltaic panel.

[0016] Optionally, a third support plate is provided on the base, and the third support plate, the first support plate, the second support plate and the base form a water tank. A water storage tank is arranged inside the second support plate. A water spraying port communicating with the water storage tank is arranged on the end face of the second support plate facing the first support plate. The water spraying port is located above the photovoltaic panel. A water guiding pipe communicating with each other is arranged between the water storage tank and the water tank.

[0017] By adopting the above technical solution, when the photovoltaic panel is not in rainy or snowy weather and there is dust on the photovoltaic panel, the water guiding pipe guides the water in the water tank into the water storage tank, and then the water in the water storage tank is sprayed from the water spraying port onto the surface of the photovoltaic panel, and the water flows along the inclined plane of the photovoltaic panel towards the direction close to the first support plate, thereby realizing the removal of the dust on the surface of the photovoltaic panel.

[0018] Optionally, a detection member is arranged in the water storage tank. The detection member includes a second conductive block, a floating block and a second connecting rod. A second sliding groove for the second conductive block to slide is formed on the upper groove wall of the water storage tank. The second conductive block abuts against the groove wall of the second sliding groove and is electrically connected to the first driving member and the second driving member. The floating block is located in the water storage tank. One end of the second connecting rod is located in the second sliding groove and is connected to the second conductive block, and the other end of the second connecting rod is located in the water storage tank and is connected to the floating block. A first electrode electrically connected to the photovoltaic panel is arranged on the groove wall of the second sliding groove.

[0019] By adopting the above technical solution, when the photovoltaic panel is in a long-term dry environment, the water volume in the water storage tank decreases due to evaporation, the floating block moves downward, driving the second connecting rod to slide downward, so that the second conductive block on the second connecting rod abuts against the first electrode on the second sliding groove, and the water guiding pipe guides the water in the water tank into the water outlet groove and the water is sprayed from the water spraying port onto the photovoltaic panel. Then the first driving member and the second driving member are started, and the cleaning roller starts to clean the dust on the surface of the photovoltaic panel, thereby realizing the monitoring of the weather by the detection member and ensuring that there is no dust on the surface of the photovoltaic panel as much as possible.

[0020] Optionally, a water inlet groove is formed on the upper end face of the first support plate, a water outlet groove communicating with the water inlet groove is formed on the outer side wall of the first support plate, and a water guiding groove communicating with the water inlet groove and the water outlet groove is formed on the inner side wall of the first support plate.

[0021] By adopting the above technical solution, when the device is in rainy weather, the water inlet groove on the first support plate guides rainwater into the first support plate, and then the rainwater is collected into the water tank through the water diversion groove, thereby achieving the effect of rainwater collection by the device; in addition, the water outlet groove can also drain excessive rainwater outside the water tank to avoid as much as possible the situation that the excessive water volume in the water tank affects the operation of the device.

[0022] Optionally, the notch diameter of the water inlet groove is smaller than that of the water outlet groove, and the notch diameter of the water diversion groove is the same as that of the water outlet groove.

[0023] By adopting the above technical solution, when the rainfall is excessive, the amount of rainwater that the water outlet groove can drain is greater than the inflow amount, further avoiding as much as possible the situation that the excessive water volume in the water tank affects the operation of the device.

[0024] Optionally, the water outlet groove and the water diversion groove are on the same horizontal plane.

[0025] By adopting the above technical solution, when the water volume in the water tank reaches a certain level, the excess water in the water tank is discharged outside the water tank through the water diversion groove and the water outlet groove, also avoiding as much as possible the situation that the excessive water volume in the water tank affects the operation of the device.

[0026] Optionally, a drainage member is provided on the first support plate. The drainage member includes a sliding rod, a drainage plate and a second spring. A third sliding groove for the sliding rod to slide and a fourth sliding groove communicating with the third sliding groove and the water inlet groove are formed in the first support plate. The drainage plate is located in the fourth sliding groove. One end of the sliding rod is connected to the drainage plate, the other end of the sliding rod is connected to the second spring, and the end of the second spring away from the sliding rod is connected to the groove wall of the third sliding groove.

[0027] By adopting the above technical solution, when it is rainy, since the photovoltaic panel is inclined along the direction close to the first support plate and there is also a gap between the first support plate and the photovoltaic panel, rainwater may directly flow into the water tank from the gap. At this time, it is difficult to control the water volume in the water tank to a certain extent. The setting of the drainage plate can guide the rainwater flowing in from the gap into the water inlet groove again, so that the amount of rainwater entering the water tank is within control, thereby further avoiding as much as possible the situation that the excessive water volume in the water tank affects the operation of the device.

[0028] Optionally, a snow melting member is provided on the drainage plate. The snow melting member includes an electric heating wire. The electric heating wire is arranged inside the drainage plate. A third conductive block electrically connected to the electric heating wire is arranged on the side wall of the sliding rod, and a second electrode electrically connected to the photovoltaic panel is arranged on the groove wall of the third sliding groove.

[0029] By adopting the above technical solution, when it is rainy or snowy, the photovoltaic panel and the mounting plate will drop due to the increased overall mass caused by the snow covering, so there is a gap between the photovoltaic panel and the first support plate. At this time, the accumulated snow will directly fall on the drainage plate under the action of the cleaning roller. Since the accumulated snow does not have the fluidity of rainwater, it may accumulate on the drainage plate, causing the drainage plate to be unable to drain. When the accumulated snow accumulates on the drainage plate, the overall mass of the drainage plate will also increase, driving the sliding rod to move downward, and the second spring is in a compressed state. As a result, the third conductive block abuts against the second electrode, and the heating wire in the drainage plate generates heat to melt the accumulated snow into water. Then the drainage plate drains the water into the water inlet tank. At this time, the overall mass of the drainage plate decreases, and the second spring resets to drive the drainage plate and the sliding rod to move upward. Ultimately, on the whole, it can not only avoid the situation of the drainage plate being blocked by accumulated snow as much as possible, but also melt a part of the accumulated snow into water to supplement the water volume in the water tank, and still maintain the control of the water volume in the water tank.

[0030] Optionally, horsehair is adhered to the outer peripheral wall of the cleaning roller.

[0031] By adopting the above technical solution, when the cleaning roller removes the accumulated snow or dust on the photovoltaic panel, due to the relatively good flexibility of the horsehair, the damage to the photovoltaic panel is further reduced.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. When it is snowy, the photovoltaic panel is covered with accumulated snow. This device can remove the accumulated snow on the photovoltaic panel layer by layer, thereby reducing the probability of damage to the photovoltaic panel. In addition, when the photovoltaic panel is closer to the cleaning roller, the moving speed and rotation speed of the cleaning roller can also become relatively slower, further reducing the probability of damage to the photovoltaic panel by the cleaning roller.

[0034] 2. The first support plate, the second support plate, the third support plate and the base jointly form a water tank. The first support plate is provided with a water inlet tank, a water outlet tank and a water diversion tank. Therefore, this device can store rainwater during rainy days to reduce the number of times of manually adding water to this device and reduce the workload of manual labor.

[0035] 3. The diameters of the water inlet tank and the water diversion tank are both relative to the diameter of the water outlet tank, and the water outlet tank and the water diversion tank are at the same horizontal plane, so as to ensure that the water volume entering the water tank is within a controllable range as much as possible, and avoid the situation that the water volume in the water tank is too much during heavy rain weather and floods the fixing seat, thereby avoiding the short circuit of the first conductive block and the resistance block as much as possible.

[0036] 4. When this device is in a long-term dry environment, a detection component is arranged in the water storage tank on the second support plate. When the detection component detects that it has not rained or snowed for a long time, the detection component will start the cleaning device to clean the dust on the photovoltaic panel. Brief Description of the Drawings

[0037] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application.

[0038] Figure 2 is a schematic diagram of the structure of the connecting member in an embodiment of the present application.

[0039] Figure 3 is Figure 2 an enlarged view of part A in

[0040] Figure 4 is Figure 1 an enlarged view of part B in

[0041] Figure 5 is Figure 2 an enlarged view of part C in

[0042] Figure 6 is Figure 2 an enlarged view of part D in

[0043] Description of Reference Numerals:

[0044] 1. Base; 2. Mounting Plate; 3. Connecting Member; 31. Fixed Seat; 311. First Chute; 312. Resistance Block; 32. First Connecting Rod; 321. First Conductive Block; 33. First Spring; 4. Support Member; 41. First Support Plate; 411. Water Inlet Groove; 412. Water Outlet Groove; 413. Water Diverting Groove; 414. Water Diverting Member; 4141. Slide Rod; 4142. Water Diverting Plate; 4143. Second Spring; 415. Third Chute; 416. Fourth Chute; 417. Snow Melting Member; 4171. Electric Heating Wire; 4172. Third Conductive Block; 4173. Second Electrode; 42. Second Support Plate; 421. Water Storage Tank; 422. Water Spray Nozzle; 423. Detection Member; 4231. Second Conductive Block; 4232. Floating Block; 4233. Second Connecting Rod; 424. Second Chute; 425. First Electrode; 426. Evaporation Tank; 43. Third Support Plate; 44. Water Tank; 5. Cleaning Device; 51. Connecting Frame; 52. Slide Block; 53. Rotating Rod; 54. Cleaning Roller; 55. First Driving Member; 551. Lead Screw; 552. First Driving Motor; 56. Second Driving Member; 561. Second Driving Motor; 6. Water Inlet Pipe; 7. Photovoltaic Panel. Detailed Description of the Embodiment

[0045] The following further describes the present application in detail with reference to the attached Figures 1-6 drawings.

[0046] An embodiment of the present application discloses a photovoltaic cleaning device. Refer to Figure 1 and Figure 2, a photovoltaic cleaning device includes a base 1, a mounting plate 2, a connecting member 3, a support member 4, and a cleaning device 5.

[0047] Among them, referring to Figure 2 and Figure 3 , the base 1, the connecting member 3, and the mounting plate 2 are arranged in sequence from bottom to top. A photovoltaic panel 7 is mounted on the mounting plate 2. The connecting member 3 includes a fixed seat 31, a first connecting rod 32, and a first spring 33.

[0048] The fixed seat 31 is mounted on the upper end face of the base 1. A first sliding groove 311 for the first connecting rod 32 to slide vertically is formed on the upper end face of the fixed seat 31, and the groove wall of the first sliding groove 311 is in sliding contact with the peripheral wall of the first connecting rod 32. One end of the first connecting rod 32 is connected to the mounting plate 2, the other end of the first connecting rod 32 is connected to the first spring 33, the end of the first spring 33 away from the first connecting rod 32 is connected to the groove wall of the first sliding groove 311, a resistance block 312 is arranged on the groove wall of the first sliding groove 311, and a first conductive block 321 electrically connected to the photovoltaic panel 7 is arranged on the peripheral wall of the first connecting rod 32.

[0049] Continuing to refer to Figure 1 and Figure 2 , the support member 4 includes a first support plate 41 and a second support plate 42. The first support plate 41 and the second support plate 42 are oppositely arranged on the base 1, and the mounting plate 2 is located between the first support plate 41 and the second mounting plate 2. The height of the first support plate 41 is lower than that of the second support plate 42, and the mounting plate 2 is arranged obliquely in the direction close to the first support plate 41, and the photovoltaic panel 7 on the mounting plate 2 is flush with the upper end face of the first support plate 41 to facilitate rainwater to wash the dust on the surface of the photovoltaic panel 7 clean on rainy days.

[0050] In addition, referring to Figure 1 and Figure 4 , the cleaning device 5 includes a connecting frame 51, a slider 52, a rotating rod 53, a cleaning roller 54, a first driving member 55, and a second driving member 56.

[0051] There are two connecting frames 51, and the two connecting frames 51 are located on both sides of the mounting plate 2. The connecting frames 51 are parallel to the mounting plate 2, and both ends of the connecting frames 51 are respectively connected to the first support plate 41 and the second support plate 42. There are two sliders 52 corresponding to the connecting frames 51. A sliding groove for the slider 52 to slide is formed in the connecting frame 51 along its own length direction, and through grooves communicating with the sliding groove are formed on the opposite end faces of the two connecting frames 51. The rotating rod 53 is located above the photovoltaic panel 7, and both ends of the rotating rod 53 respectively pass through the through grooves and are rotatably connected to the two sliders 52, and the cleaning roller 54 is fixedly sleeved on the rotating rod 53.

[0052] Finally, referring to Figure 1 and Figure 4, the first driving member 55 includes a lead screw 551 and a first driving motor 552.

[0053] There are two lead screws 551 corresponding to the slider 52, and the slider 52 is provided with a threaded groove for the lead screw 551 to pass through threadedly. The lead screw 551 is arranged in the chute of the connecting frame 51 along the length direction of the connecting frame 51, and both ends of the lead screw 551 are rotatably connected to the chute wall. The lead screw 551 in this embodiment is a reciprocating lead screw, which can drive the slider 52 to reciprocate in the chute.

[0054] A placement cavity communicating with the chute is further opened in the connecting frame 51. The first driving motor 552 is located in the placement cavity, and the output shaft of the first driving motor 552 is coaxially and fixedly connected to one end of the lead screw 551.

[0055] The second driving member 56 is a second driving motor 561. The second driving motor 561 is installed on one of the sliders 52, and the second driving motor 561 is coaxially and fixedly connected to the rotating end.

[0056] Moreover, the above-mentioned first driving motor 552 and second driving motor 561 are both electrically connected to the resistor block 312 in the first chute 311.

[0057] In summary, when the photovoltaic panel 7 is covered with snow, the overall load of the mounting plate 2 increases, thereby driving the first connecting rod 32 to move vertically downward. At this time, the first spring 33 is in a compressed state. At the same time, the first conductive block 321 on the first connecting rod 32 abuts against the resistor block 312. Thus, the first driving motor 552 and the lead screw 551 drive the slider 52 to reciprocate in the chute of the connecting frame 51, and the second driving motor 561 drives the rotating rod 53 to rotate, thereby driving the cleaning roller 54 to reciprocate in a direction parallel to the photovoltaic panel 7 and rotate along its own axis. Thus, the cleaning roller 54 cleans the outermost layer of snow on the photovoltaic panel 7; since the snow on the photovoltaic panel 7 decreases, and then the overall mass on the mounting plate 2 decreases, therefore, the first spring 33 resets partially, thereby driving the photovoltaic panel 7 to move in the direction close to the cleaning roller 54. Then, the cleaning roller 54 continues to clean the outermost layer of snow on the photovoltaic panel 7 at this time, repeating the above operations, thereby realizing the cleaning of the photovoltaic panel 7 by the cleaning roller 54 and reducing the probability of scratching the photovoltaic panel 7; in addition, as the photovoltaic panel 7 rises, the first conductive block 321 on the connecting rod rises accordingly. Therefore, the length of the resistor connected to the circuit increases, thereby increasing the resistance of the entire circuit, and thus reducing the power of the first driving motor 552 and the second driving motor 561. The moving speed of the slider 52 and the speed of the cleaning roller 54 both decrease. Thus, the closer the photovoltaic panel 7 is to the cleaning roller 54, the slower the moving speed of the slider 52 and the rotation speed of the cleaning roller 54. Therefore, the probability of the cleaning roller 54 scratching the photovoltaic panel 7 is further reduced.

[0058] To improve the snow removal effect of the cleaning roller 54 on the snow on the photovoltaic panel 7, the second drive motor 561 drives the rotating rod 53 to rotate in a direction away from the first support plate 41. When the cleaning roller 54 removes the snow on the photovoltaic panel 7, the cleaning roller 54 can sweep the snow along the inclined direction of the mounting plate 2, thereby minimizing the chance of the snow re-adhering to the cleaned part of the photovoltaic panel 7.

[0059] To reduce the damage of the cleaning roller 54 to the photovoltaic panel 7, horsehair is adhered to the outer peripheral wall of the cleaning roller 54. It can also be other flexible materials, such as bristle, etc. In this embodiment, horsehair is preferably used.

[0060] Refer to Figure 2 and Figure 5 , a third support plate 43 is provided on the base 1. The third support plate 43, the first support plate 41, the second support plate 42 and the base 1 together form a water tank 44. The third support plate 43 is integrally formed with the connecting frame 51. A water storage tank 421 is provided inside the second support plate 42. A water spraying port 422 communicating with the water storage tank 421 is provided on the end face of the second support plate 42 facing the first support plate 41. The water spraying port 422 is located above the photovoltaic panel 7. A water guiding pipe 6 communicating with each other is provided between the water storage tank 421 and the water tank 44. A pump (not shown in the figure) is provided on the water guiding pipe 6.

[0061] Refer to Figure 2 and Figure 5 , a detecting member 423 is provided inside the water storage tank 421. The detecting member 423 includes a second conductive block 4231, a floating block 4232 and a second connecting rod 4233.

[0062] A second sliding groove 424 for the second conductive block 4231 to slide is formed on the upper groove wall of the water storage tank 421. The second conductive block 4231 abuts against the groove wall of the second sliding groove 424 and is electrically connected to the first drive motor 552 and the second drive motor 561. The floating block 4232 is located inside the water storage tank 421. One end of the second connecting rod 4233 is located inside the second sliding groove 424 and is connected to the second conductive block 4231. The other end of the second connecting rod 4233 is located inside the water storage tank 421 and is connected to the floating block 4232. A first electrode 425 electrically connected to the photovoltaic panel 7 and the pump is provided on the groove wall of the second sliding groove 424.

[0063] When the photovoltaic panel 7 is in a long-term dry environment, the water volume in the water storage tank 421 decreases due to evaporation, and the floating block 4232 moves downward, driving the second connecting rod 4233 to slide downward. As a result, the second conductive block 4231 on the second connecting rod 4233 abuts against the first electrode 425 on the second chute 424. Then, the water pump draws water from the water tank through the water pipe 6 into the water storage tank 421, and the water is sprayed onto the photovoltaic panel 7 from the water spray port 422. Subsequently, the first driving motor 552 and the second driving motor 561 are started, and the cleaning roller 54 begins to remove the dust on the surface of the photovoltaic panel 7, thereby realizing the weather monitoring by the detection piece 423 and ensuring that there is no dust on the surface of the photovoltaic panel 7 as much as possible.

[0064] In addition, according to the actual situation, an evaporation tank 426 communicating with the water storage tank 421 can be opened on the upper end surface of the second support plate 42 to facilitate the evaporation of the water in the water storage tank 421, so that the cleaning device 5 can clean the dust on the photovoltaic panel 7 in a timely manner. Moreover, the evaporation tank 426 can also have a certain water diversion function on rainy days, diverting the rainwater into the water storage tank 421, and the excess rainwater flows out from the water spray port 422.

[0065] Refer to Figure 2 and Figure 6 In order to make use of natural rainwater, a water inlet tank 411 is opened on the upper end surface of the first support plate 41, a water outlet tank 412 communicating with the water inlet tank 411 is opened on the outer side wall of the first support plate 41, and a water diversion tank 413 communicating with the water inlet tank 411 and the water outlet tank 412 is opened on the inner side wall of the first support plate 41.

[0066] Moreover, the notch diameter of the water inlet tank 411 is smaller than that of the water outlet tank 412, and the notch diameter of the water diversion tank 413 is the same as that of the water outlet tank 412 to prevent the situation that the rainwater entering the water tank 44 is excessive in heavy rain weather, causing the water level in the water tank 44 to exceed the height of the fixed seat 31, thus avoiding the situation that the device cannot operate normally as much as possible.

[0067] In addition, the water outlet tank 412 and the water diversion tank 413 are on the same horizontal plane, further ensuring that the water volume in the water tank 44 is within a controllable range.

[0068] Refer to Figure 2 and Figure 6 In order to further avoid the situation that the excessive water volume in the water tank 44 affects the operation of this device as much as possible, a water diversion component 414 is provided on the first support plate 41. The water diversion component 414 includes a sliding rod 4141, a water diversion plate 4142, and a second spring 4143.

[0069] A third chute 415 for the sliding rod 4141 to slide and a fourth chute 416 communicating with the third chute 415 and the water inlet chute 411 are formed in the first support plate 41. The drainage plate 4142 is located in the fourth chute 416, and the upper end surface of the drainage plate 4142 abuts against the lower end surface of the mounting plate 2. One end of the sliding rod 4141 is connected to the drainage plate 4142, the other end of the sliding rod 4141 is connected to the second spring 4143, and the end of the second spring 4143 away from the sliding rod 4141 is connected to the wall of the third chute 415.

[0070] There is a moving gap between the mounting plate 2 or the photovoltaic panel 7 and the first support plate 41, and the drainage plate 4142 can lead the rainwater flowing in from the gap into the water inlet chute 411 to prevent the rainwater from directly entering the water tank 44, so as to try to keep the water volume in the water tank 44 within the controlled range.

[0071] To prevent the snow from blocking the drainage plate 4142, a snow melting member 417 is provided on the drainage plate 4142, and the snow melting member 417 includes a heating wire 4171.

[0072] The heating wire 4171 is arranged inside the drainage plate 4142. A third conductive block 4172 electrically connected to the heating wire 4171 is arranged on the side wall of the sliding rod 4141, and a second electrode 4173 electrically connected to the photovoltaic panel 7 is arranged on the wall of the third chute 415.

[0073] When it snows, the mounting plate 2 will move downward, so the gap between the mounting plate 2 and the first support plate 41 will increase, and thus the snow will fall onto the drainage plate 4142, which may cause the phenomenon of snow accumulation on the drainage plate 4142. When the snow accumulates on the drainage plate 4142, the overall mass of the drainage plate 4142 increases and it moves downward, and the third conductive block 4172 is connected to the second electrode 4173, so that the heating wire 4171 generates heat to melt the snow into water and lead it into the water inlet chute 411 through the drainage plate 4142.

[0074] The implementation principle of a photovoltaic cleaning device 5 in an embodiment of the present application is as follows: when the photovoltaic panel 7 is covered with full snow, the overall load of the mounting plate 2 increases, thereby driving the first connecting rod 32 to move vertically downward. At this time, the first spring 33 is in a compressed state. At the same time, the first conductive block 321 on the first connecting rod 32 abuts against the resistor block 312, so that the first drive motor 552 and the screw rod 551 drive the slider 52 to reciprocate in the slide groove in the connecting frame 51, and the second drive motor 561 drives the rotating rod 53 to rotate, thereby driving the cleaning roller 54 to reciprocate in a direction parallel to the photovoltaic panel 7 and rotate along its own axis direction, so that the cleaning roller 54 cleans the outermost layer of snow on the photovoltaic panel 7; as the snow on the photovoltaic panel 7 decreases, and then the overall mass on the mounting plate 2 decreases, the first spring 33 is compressed. The cleaning roller 54 then moves to a certain position, thereby driving the photovoltaic panel 7 to move in the direction close to the cleaning roller 54, and then the cleaning roller 54 continues to clean the outermost layer of snow on the photovoltaic panel 7 at this time, and repeats the above operation, thereby realizing the cleaning of the photovoltaic panel 7 by the cleaning roller 54 and reducing the probability of scratching the photovoltaic panel 7; in addition, as the photovoltaic panel 7 rises, the first conductive block 321 on the connecting rod rises accordingly, and therefore, the length of the resistor connected to the circuit increases, thereby increasing the resistance of the entire circuit, thereby reducing the power of the first drive motor 552 and the second drive motor 561, and reducing the moving speed of the slider 52 and the speed of the cleaning roller 54. Therefore, the closer the photovoltaic panel 7 is to the cleaning roller 54, the slower the moving speed of the slider 52 and the rotation speed of the cleaning roller 54, thereby further reducing the probability of scratching the photovoltaic panel 7 by the cleaning roller 54.

[0075] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A photovoltaic cleaning device, characterized in that: including, a base (1); a mounting plate (2), the mounting plate (2) is connected to the base (1) and the mounting plate (2) is used for mounting a photovoltaic panel (7); a connecting member (3), the connecting member (3) is located between the base (1) and the mounting plate (2), the connecting member (3) includes a fixed seat (31), a first connecting rod (32) and a first spring (33), the fixed seat (31) is mounted on the base (1), a first sliding groove (311) for the first connecting rod (32) to slide in the vertical direction is formed on the upper end surface of the fixed seat (31), and the groove wall of the first sliding groove (311) is in sliding contact with the peripheral wall of the first connecting rod (32), one end of the first connecting rod (32) is connected to the mounting plate (2), the other end of the first connecting rod (32) is connected to the first spring (33), the end of the first spring (33) away from the first connecting rod (32) is connected to the groove wall of the first sliding groove (311), a resistance block (312) is arranged on the groove wall of the first sliding groove (311), and a first conductive block (321) electrically connected to the photovoltaic panel (7) is arranged on the peripheral wall of the first connecting rod (32); a support member (4), the support member (4) includes a first support plate (41) and a second support plate (42), the first support plate (41) and the second support plate (42) are oppositely arranged on the base (1), and the mounting plate (2) is located between the first support plate (41) and the second mounting plate (2); a cleaning device (5), the cleaning device (5) includes a connecting frame (51), a slider (52), a rotating rod (53), a cleaning roller (54), a first driving member (55) and a second driving member (56), there are two connecting frames (51) and the two connecting frames (51) are located on both sides of the mounting plate (2), the connecting frame (51) is parallel to the mounting plate (2) and both ends of the connecting frame (51) are respectively connected to the first support plate (41) and the second support plate (42), there are two sliders (52) and the two sliders (52) are respectively slidably connected to the two connecting frames (51), the rotating rod (53) is located on the upper end surface of the mounting plate (2) and both ends of the rotating rod (53) are respectively rotatably connected to the two sliders (52), the cleaning roller (54) is sleeved on the rotating rod (53), the first driving member (55) is mounted on the connecting frame (51) and the first driving member (55) is used for driving the slider (52) to reciprocate on the connecting frame (51), the second driving member (56) is mounted on the slider (52) and is connected to the rotating rod (53), the second driving member (56) is used for driving the rotating rod (53) to rotate, and both the first driving member (55) and the second driving member (56) are electrically connected to the end of the resistance block (312) away from the mounting plate (2).

2. The photovoltaic cleaning device according to claim 1, wherein: The mounting plate (2) is inclined towards the first support plate (41), and the second driving member (56) drives the rotating rod (53) to rotate in a direction away from the first support plate (41).

3. A photovoltaic cleaning device according to claim 1, characterized in that: A third support plate (43) is provided on the base (1). The third support plate (43), the first support plate (41), the second support plate (42), and the base (1) together form a water tank (44). A water storage tank (421) is provided inside the second support plate (42). A water spraying port (422) communicating with the water storage tank (421) is provided on the end face of the second support plate (42) facing the first support plate (41). The water spraying port (422) is located above the photovoltaic panel (7). A water guiding pipe (6) that communicates with each other is provided between the water storage tank (421) and the water tank (44).

4. A photovoltaic cleaning device according to claim 3, wherein: A detection member (423) is provided inside the water storage tank (421). The detection member (423) includes a second conductive block (4231), a floating block (4232), and a second connecting rod (4233). A second sliding groove (424) for the second conductive block (4231) to slide is formed on the upper groove wall of the water storage tank (421). The second conductive block (4231) abuts against the groove wall of the second sliding groove (424) and is electrically connected to the first driving member (55) and the second driving member (56). The floating block (4232) is located inside the water storage tank (421). One end of the second connecting rod (4233) is located inside the second sliding groove (424) and is connected to the second conductive block (4231). The other end of the second connecting rod (4233) is located inside the water storage tank (421) and is connected to the floating block (4232). A first electrode (425) electrically connected to the photovoltaic panel (7) is provided on the groove wall of the second sliding groove (424).

5. A photovoltaic cleaning device according to claim 3, characterized in that: An inlet water groove (411) is formed on the upper end face of the first support plate (41). An outlet water groove (412) communicating with the inlet water groove (411) is formed on the outer side wall of the first support plate (41). A water guiding groove (413) communicating with the inlet water groove (411) and the outlet water groove (412) is formed on the inner side wall of the first support plate (41).

6. A photovoltaic cleaning device according to claim 5, characterized in that: The notch diameter of the inlet water groove (411) is smaller than the notch diameter of the outlet water groove (412), and the notch diameter of the water guiding groove (413) is the same as the notch diameter of the outlet water groove (412).

7. A photovoltaic cleaning device according to claim 5, characterized in that: The outlet water groove (412) and the water guiding groove (413) are on the same horizontal plane.

8. A photovoltaic cleaning device according to claim 5, characterized in that: A water guiding member (414) is provided on the first support plate (41). The water guiding member (414) includes a sliding rod (4141), a water guiding plate (4142), and a second spring (4143). A third sliding groove (415) for the sliding rod (4141) to slide and a fourth sliding groove (416) communicating with the third sliding groove (415) and the inlet water groove (411) are formed inside the first support plate (41). The water guiding plate (4142) is located inside the fourth sliding groove (416). One end of the sliding rod (4141) is connected to the water guiding plate (4142). The other end of the sliding rod (4141) is connected to the second spring (4143). The end of the second spring (4143) away from the sliding rod (4141) is connected to the groove wall of the third sliding groove (415).

9. The photovoltaic cleaning device according to claim 8, characterized in that: A snow melting component (417) is provided on the drainage plate (4142). The snow melting component (417) includes a heating wire (4171). The heating wire (4171) is disposed inside the drainage plate (4142). A third conductive block (4172) electrically connected to the heating wire (4171) is provided on the side wall of the sliding rod (4141). A second electrode (4173) electrically connected to the photovoltaic panel (7) is provided on the groove wall of the third chute (415).

10. A photovoltaic cleaning device according to claim 1, characterized in that: Horsehair is adhered to the outer peripheral wall of the cleaning roller (54).

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