Solar photovoltaic panel sweeping and dust removing device

Abstract

The utility model relates to a cleaning and dust removing device for a solar photovoltaic panel, and effectively solves the problems that the maintenance cost is increased and the efficiency is not high due to the fact that the existing photovoltaic power generation panel is mostly cleaned by manpower. According to the solar photovoltaic panel cleaning and dust removing device, the cleaning mechanism can be kept wet through the water adding mechanism, so that the cleaning mechanism scrubs and cleans the surface of a solar panel, and meanwhile, the electrostatic adsorption mechanism can perform electrostatic adsorption on dust floating above the solar panel; the moving mechanism can drive the whole device to circularly move along the outer part of the solar panel under the driving of the driving mechanism, so that the sweeping mechanism and the electrostatic adsorption mechanism can efficiently and fully sweep and remove dust on the whole solar panel; the cleaning efficiency of the solar panel is greatly improved, meanwhile, the maintenance cost is reduced, and the cleaning device is more beneficial to cleaning a large-area photovoltaic power generation panel.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic power generation, and in particular relates to a solar photovoltaic panel cleaning and dust removal device. Background Art

[0002] In modern society, solar energy is increasingly valued. In the absence of rainfall, the panels were not cleaned for 8 consecutive days. Data showed that on the first day after cleaning, the panels generated 5.73 kWh per kilowatt under a daily cumulative radiation of 22 MJ / m2. However, on the 8th day, the panels generated 4.91 kWh per kilowatt under the same radiation. In just 8 days, dust had caused a 14.3% loss in power generation. It is worth mentioning that this was in Suzhou, where the air quality is relatively good. If it is in the north where industrial pollution is serious or the northwest where wind and sand are heavy and rainfall is low, the power generation loss caused by dust will undoubtedly be greater if it is not cleaned for many consecutive days. In Shenzhen, photovoltaic panels that were not cleaned or maintained for 1 year in 2009 had a thick layer of dust on the surface. Because the dust attached to the surface of the photovoltaic panels blocked the direct sunlight, its photoelectric conversion efficiency was 4.13% lower than that of photovoltaic panels with clean surfaces.

[0003] The increasing number of solar power generation applications has alleviated the current electricity shortage to a certain extent, but the problem of cleaning open-air solar panels has also been exposed. Cleaning is difficult, and long-term dust accumulation on solar photovoltaic panel components will not only cause loss of power generation, but also cause hot spot effects in severe cases, resulting in a short life or even damage to the components. Therefore, it is necessary to pay attention to the cleanliness of the components and clean them appropriately to ensure power generation.

[0004] At present, most of the photovoltaic panels in China are cleaned by manpower, and only a very small number of them use semi-automatic non-professional cleaning tools. This not only greatly increases the cost of labor maintenance, but also has low efficiency. For those who use some non-specialized tools, this will not only fail to clean properly, but also has certain risks, and the cost is generally high. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a solar photovoltaic panel cleaning and dust removal device, which can electrostatically adsorb dust floating above the solar panel, so that it gathers in the electrostatic adsorption mechanism to avoid accumulation on the solar panel and affect the photoelectric conversion efficiency. It can efficiently and fully clean and dust the entire solar panel, greatly improving the cleaning efficiency of the solar panel while reducing maintenance costs.

[0006] A solar photovoltaic panel cleaning and dust removal device comprises a frame and an electric telescopic rod fixedly mounted on the side of the frame, wherein the top and bottom ends of one side of the frame are both provided with a moving mechanism that can move outside the solar photovoltaic panel, the end of the side of the frame close to the moving mechanism is provided with a driving mechanism that can drive the moving mechanism, and the driving mechanism is transmission-connected with the moving mechanism, the top and bottom of the middle part of the side of the frame are both fixedly mounted with electric telescopic rods, and the movable ends of the two electric telescopic rods pass through one end of the frame and are fixedly connected with a bracket, the interior of the bracket is provided with a cleaning mechanism that can clean the solar photovoltaic panel, and the side is provided with a water adding mechanism that can drip water on the cleaning mechanism, and both sides of the bracket are provided with an electrostatic adsorption mechanism that can adsorb dust.

[0007] Preferably, the moving mechanism includes a first concave pulley, a first bevel gear, a second bevel gear, a first pulley and a belt, the first bevel gear is fixedly connected to one side of the first concave pulley and is rotatably connected to the inside of the frame, the inner side wall of the frame is fixedly connected with a fixing plate for fixing and supporting the second bevel gear, the first pulley is fixedly connected to the second bevel gear and is rotatably connected to the inside of the fixing plate, the second bevel gear is meshed with the first bevel gear, the belt drive is connected to the outside of the first pulley and the other end is passed through the side of the frame, the number of the moving mechanisms is two and the two moving mechanisms are symmetrically arranged with the horizontal midline of the frame as the symmetry axis.

[0008] Preferably, the top and bottom ends of the frame on the side away from the moving mechanism are rotatably connected to second concave pulleys, and two second concave pulleys are rotatably connected to the top and bottom ends of the frame on the side away from the moving mechanism, respectively; an auxiliary solar panel that can provide electrical energy to the device is fixedly installed on the side of the frame, a battery box for storing batteries is fixedly installed on the bottom of the side of the frame, and sensors that can limit the device are fixedly installed on the top of both sides of the frame.

[0009] Preferably, the driving mechanism includes a first driving motor, a third bevel gear, a fourth bevel gear, a rotating rod and a second pulley, the third bevel gear is splined to the output end of the first driving motor and the first driving motor is fixedly mounted in the middle of the side surface of the frame, the top and bottom ends of the third bevel gear are meshed with the fourth bevel gear and the two fourth bevel gears are fixedly connected to the rotating rod at the center of a side away from each other, the ends of the two rotating rods away from each other are fixedly connected to the second pulley, the two second pulleys are respectively transmission-connected to the ends of the two belts away from the first pulley, the outsides of the two rotating rods are sleeved with support plates that can support and limit them, and the support plates are fixedly connected to the side surface of the frame.

[0010] Preferably, the cleaning mechanism includes a second drive motor and a roller brush, the roller brush is splined to the output shaft of the second drive motor and rotatably connected to the inside of the bracket, and the second drive motor is fixedly mounted on the upper surface of the bracket.

[0011] Preferably, the water adding mechanism includes a water tank, a telescopic tube, an electromagnetic valve and a dripping pipe, the water tank is fixedly mounted on the top of the frame and the telescopic tube is connected to the lower surface of the water tank, the electromagnetic valve is fixedly mounted on the top of the telescopic tube, the dripping pipe is connected to the end of the telescopic tube away from the water tank and the dripping point is penetrated on the side of the bracket and corresponds to the roller brush.

[0012] Preferably, the electrostatic adsorption mechanism includes a positive electrode plate and a negative electrode plate, the top and bottom ends of one side of the bracket are fixedly installed with positive electrode plates and the middle part is fixedly connected with a negative electrode plate parallel to and corresponding to the two positive electrode plates, the number of the electrostatic adsorption mechanisms is two and the two electrostatic adsorption mechanisms are symmetrically arranged with the vertical center line of the bracket as the symmetry axis.

[0013] The above technical solution has the following beneficial effects:

[0014] The solar photovoltaic panel cleaning and dust removal device is provided with a moving mechanism, a cleaning mechanism, a water adding mechanism and an electrostatic adsorption mechanism. The water adding mechanism can keep the cleaning mechanism moist so that the cleaning mechanism can scrub and clean the surface of the solar panel. At the same time, the electrostatic adsorption mechanism can electrostatically adsorb dust floating above the solar panel to make it gather in the electrostatic adsorption mechanism to avoid accumulation on the solar panel and affecting the photoelectric conversion efficiency. The moving mechanism can drive the entire device to circulate along the outside of the solar panel under the drive of the driving mechanism, so that the cleaning mechanism and the electrostatic adsorption mechanism can efficiently and fully clean and dust the entire solar panel, which greatly improves the cleaning efficiency of the solar panel and reduces the maintenance cost, and is more conducive to use when cleaning large-area photovoltaic panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the framework of the utility model;

[0017] Figure 3 It is a schematic diagram of the cleaning mechanism and electrostatic adsorption mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of the water adding mechanism of the utility model;

[0019] Figure 5 It is a schematic diagram of the moving mechanism and driving mechanism of the utility model;

[0020] Figure 6 For the utility model Figure 5 Split state intention.

[0021] In the figure: 1, frame; 2, electric telescopic rod; 3, bracket; 4, first concave pulley; 5, first bevel gear; 6, second bevel gear; 7, first pulley; 8, belt; 9, second concave pulley; 10, auxiliary solar panel; 11, battery box; 12, sensor; 13, first drive motor; 14, third bevel gear; 15, fourth bevel gear; 16, rotating rod; 17, second pulley; 18, support plate; 19, second drive motor; 20, roller brush; 21, water tank; 22, telescopic tube; 23, electromagnetic valve; 24, drip pipe; 25, positive plate; 26, negative plate. DETAILED DESCRIPTION

[0022] The above and other technical contents, features and functions of the present invention are described in detail below with reference to the attached Figures 1 to 6 The embodiments are described in detail.

[0023] The present embodiment provides a solar photovoltaic panel cleaning and dust removal device, as shown in the accompanying drawings, comprising a frame 1 and an electric telescopic rod 2 fixedly mounted on the side of the frame 1, the top and bottom ends of the frame 1 on the side away from the moving mechanism are both rotatably connected to a second concave pulley 9, and two second concave pulleys 9 are respectively rotatably connected to the top and bottom ends of the frame 1 on the side away from the moving mechanism, an auxiliary solar panel 10 that can provide power for the device is fixedly mounted on the side of the frame 1, a battery box 11 that can store batteries is fixedly mounted on the bottom of the side of the frame 1, the electric telescopic rod 2, the sensor 12, the first drive motor 13, the second drive motor 19, the electromagnetic valve 23, the positive plate 25 and the negative plate 26 are all electrically connected to the control unit, and the auxiliary solar panel 10 ... electric telescopic rod 2, the electric telescopic rod 2, the electric telescopic rod 2, the electric telescopic rod 2, the electric telescopic rod 2 The retracting rod 2, the sensor 12, the first drive motor 13, the second drive motor 19, the electromagnetic valve 23, the positive plate 25, the negative plate 26 and the external control unit are all electrically connected to the battery in the battery box 11, and the auxiliary solar panel 10 converts light energy into electrical energy and stores it in the battery in the battery box 11. The tops of both sides of the frame 1 are fixedly installed with sensors 12 that can limit the position of the device. The sensor 12 can detect the corresponding solar panel in real time. When the sensor on one side exceeds the edge of the same side of the solar panel, the control unit controls the moving mechanism to stop moving and then move in the opposite direction, so that the device can be moved back and forth on the solar panel as a whole without falling off, and the solar panel can be fully cleaned and dusted;

[0024] The top and bottom ends of one side of the frame 1 are both provided with a moving mechanism that can move outside the solar photovoltaic panel, and the moving mechanism includes a first concave pulley 4, a first bevel gear 5, a second bevel gear 6, a first pulley 7 and a belt 8. The first bevel gear 5 is fixedly connected to one side of the first concave pulley 4 and is rotatably connected to the inside of the frame 1. The inner side wall of the frame 1 is fixedly connected to a fixing plate for fixing and supporting the second bevel gear 6. The first pulley 7 is fixedly connected to the second bevel gear 6 and is rotatably connected to the inside of the fixing plate. The second bevel gear 6 is meshed with the first bevel gear 5. The belt 8 is transmission-connected to the outside of the first pulley 7 and the other end passes through the first bevel gear 7. The frame 1 is provided on the side of the frame 1, the number of the moving mechanisms is two and the two moving mechanisms are symmetrically arranged with the horizontal midline of the frame 1 as the symmetry axis, a driving mechanism that can drive the moving mechanism is provided at one end of the side of the frame 1 close to the moving mechanism and the driving mechanism is transmission-connected with the moving mechanism, the driving mechanism includes a first driving motor 13, a third bevel gear 14, a fourth bevel gear 15, a rotating rod 16 and a second pulley 17, the third bevel gear 14 is spline-connected to the output end of the first driving motor 13 and the first driving motor 13 is fixedly installed in the middle of the side of the frame 1, the top and bottom ends of the third bevel gear 14 are meshed with the fourth bevel gear 15 The two fourth bevel gears 15 are fixedly connected to a rotating rod 16 at the center of the circle on the side away from each other, and the ends of the two rotating rods 16 away from each other are fixedly connected to a second pulley 17, and the two second pulleys 17 are respectively connected to the ends of the two belts 8 away from the first pulley 7. The outsides of the two rotating rods 16 are sleeved with support plates 18 that can support and limit them. The support plate 18 is fixedly connected to the side of the frame 1. The first drive motor 13 drives the third bevel gear 14 to rotate so that the two fourth bevel gears 15 can rotate synchronously. The two fourth bevel gears 15 can drive the top and bottom of the frame 1 through the second pulley 17 and the belt 8. The first pulley 7 and the second bevel gear 6 at the bottom rotate, thereby driving the two first bevel gears at the top and bottom and the first concave pulley 4 to rotate synchronously in opposite directions, which can drive the device as a whole to move on the solar panel. The first concave pulley 4 and the second concave pulley 9 at the top and the first concave pulley 4 and the second concave pulley 9 at the bottom are rotatably connected to the upper edge and the lower edge of the solar panel respectively. The upper edge and the lower edge of the solar panel are both penetrated by the concave parts of the first concave pulley 4 and the second concave pulley 9, so that the device as a whole can be clamped on the outside of the solar panel and will not fall off, and the normal movement of the device as a whole can also be ensured.

[0025] Electric telescopic rods 2 are fixedly installed on the top and bottom of the middle part of the side of the frame 1, and the movable ends of the two electric telescopic rods 2 pass through one end of the frame 1 and are fixedly connected to the bracket 3. A cleaning mechanism for cleaning the solar photovoltaic panel is arranged inside the bracket 3, and a water adding mechanism for dripping water on the cleaning mechanism is arranged on the side. The cleaning mechanism includes a second drive motor 19 and a roller brush 20. The roller brush 20 is connected to the output shaft of the second drive motor 19 through a spline and is rotatably connected to the inside of the bracket 3. The second drive motor 19 is fixedly installed on the upper surface of the bracket 3. The water adding mechanism includes a water tank 21, a telescopic tube 22, an electromagnetic valve 23 and a dripping pipe 24. The water tank 21 is fixedly installed on the top of the frame 1 and the telescopic tube 22 is connected to the bracket 3. Connected to the lower surface of the water tank 21, the electromagnetic valve 23 is fixedly installed on the top of the telescopic tube 22, the dripping pipe 24 is connected to the end of the telescopic tube 22 away from the water tank 21, and the dripping place is arranged on the side of the bracket 3 and corresponds to the roller brush 20. When the solar panel needs to be cleaned, the driving mechanism drives the moving mechanism to move the device along the solar panel, and at the same time, the movable end of the electric telescopic rod 2 is pushed outward to make the roller brush 20 fit the surface of the solar panel, and the second driving motor 19 drives the roller brush 20 to rotate, and the electromagnetic valve 23 is opened. The water in the water tank 21 flows into the dripping pipe 24 along the telescopic tube 22 and drips from each dripping port onto the roller brush 20 below. The wet roller brush 20 can scrub the surface of the solar panel more thoroughly;

[0026] Both sides of the bracket 3 are provided with an electrostatic adsorption mechanism for adsorbing dust, and the electrostatic adsorption mechanism includes a positive plate 25 and a negative plate 26. The top and bottom ends of one side of the bracket 3 are fixedly installed with a positive plate 25, and the middle is fixedly connected with a negative plate 26 parallel to and corresponding to the two positive plates 25. There are two electrostatic adsorption mechanisms, and the two electrostatic adsorption mechanisms are symmetrically arranged with the vertical center line of the bracket 3 as the symmetry axis; the electric energy of the battery in the battery box 11 is converted from direct current to alternating current through an external inverter, and then the voltage is increased to 40KV to 75KV through a transformer, and then the alternating current is converted back to direct current through a rectifier, and then the electricity is transmitted to the electrostatic adsorption mechanism, and the electrostatic adsorption mechanism forms a high-voltage electrostatic field, When the dust-laden gas passes through the high-voltage electrostatic field, it is electrically separated. After the dust particles are combined with negative ions and carry negative charges, they tend to discharge toward the anode surface and deposit, so that the dust inside the electrostatic adsorption mechanism is adsorbed on the positive plates 25 on both sides; electrostatic dust removal is a well-known technology, so it will not be elaborated on here; the dust floating in the air above the solar energy can be adsorbed by the electrostatic adsorption mechanism, so as to prevent the dust from falling on the solar panel and affecting the photoelectric conversion efficiency; electrostatic adsorption mechanisms are set on both sides of the roller brush 20, which can ensure that no matter in which direction the device moves, the electrostatic adsorption mechanism can adsorb the dust in the air before the roller brush 20 brushes, so as to prevent all the dust from accumulating on the roller brush 20 and affecting the service life of the roller brush;

[0027] like Figure 1As shown, the schematic diagram of the device is a schematic diagram of a vertical state, and in actual use, since the solar panel is fixedly installed in an inclined state, the concave pulleys at the top and bottom ends of the device are slidably connected to the upper edge and the lower edge of the solar panel respectively. Therefore, the state of the device in actual use is parallel to the solar panel, and the water dripping from each dripping point of the drip pipe 24 can drip onto the roller brush 20, which can ensure that the roller brush 20 is in a wet state to clean the solar panel.

[0028] In summary, the use steps of the solar photovoltaic panel cleaning and dust removal device are as follows:

[0029] 1. The concave pulleys at the top and bottom of the device are respectively rotated and connected to the upper edge and the lower edge of the solar panel, and the driving mechanism drives the moving mechanism to rotate so that the device as a whole can move on the surface of the solar panel;

[0030] 2. The movable end of the electric telescopic rod 2 is pushed outward to make the roller brush 20 fit the surface of the solar panel, and the second drive motor 19 drives the roller brush 20 to rotate. The electromagnetic valve 23 is opened, and the water in the water tank 21 flows along the telescopic tube 22 into the drip pipe 24 and drips from each drip port onto the roller brush 20 below. The wet roller brush 20 rotates and moves to scrub the surface of the solar panel more thoroughly;

[0031] 3. At the same time, the electrostatic adsorption mechanisms on both sides can adsorb dust in the air on both sides of the roller brush 20, greatly reducing dust deposition on the surface of the solar panel and ensuring that the solar panel has a higher light energy conversion efficiency.

[0032] The above description is only for illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the protection scope of the present invention.

Claims

1. A solar photovoltaic panel cleaning and dust removal device, comprising a frame (1) and an electric telescopic rod (2) fixedly mounted on the side of the frame (1), characterized in that: The top and bottom ends of one side of the frame (1) are both provided with a moving mechanism that can move outside the solar photovoltaic panel, the side of the frame (1) close to the end of the moving mechanism is provided with a driving mechanism that can drive the moving mechanism, and the driving mechanism is in transmission connection with the moving mechanism, the top and bottom of the middle part of the side of the frame (1) are both fixedly installed with electric telescopic rods (2), and the movable ends of the two electric telescopic rods (2) are passed through one end of the frame (1) and are fixedly connected with a bracket (3), the inside of the bracket (3) is provided with a cleaning mechanism that can clean the solar photovoltaic panel, and the side is provided with a water adding mechanism that can drip water on the cleaning mechanism, and both sides of the bracket (3) are provided with electrostatic adsorption mechanisms that can adsorb dust.

2. A solar photovoltaic panel cleaning and dust removal device according to claim 1, characterized in that: The moving mechanism comprises a first concave pulley (4), a first bevel gear (5), a second bevel gear (6), a first belt pulley (7) and a belt (8); the first bevel gear (5) is fixedly connected to one side of the first concave pulley (4) and is rotatably connected to the inside of the frame (1); the inner side wall of the frame (1) is fixedly connected to a fixing plate for fixing and supporting the second bevel gear (6); the first belt pulley (7) is fixedly connected to the second bevel gear (6) and is rotatably connected to the inside of the fixing plate; the second bevel gear (6) is meshed with the first bevel gear (5); the belt (8) is transmission-connected to the outside of the first belt pulley (7) and the other end is passed through the side of the frame (1); the number of the moving mechanisms is two and the two moving mechanisms are symmetrically arranged with the horizontal midline of the frame (1) as the symmetry axis.

3. A solar photovoltaic panel cleaning and dust removal device according to claim 1, characterized in that: The top and bottom ends of the frame (1) on the side away from the moving mechanism are both rotatably connected to second concave pulleys (9), and the two second concave pulleys (9) are respectively rotatably connected to the top and bottom ends of the frame (1) on the side away from the moving mechanism. An auxiliary solar panel (10) capable of providing electric energy for the device is fixedly installed on the side of the frame (1), a battery box (11) capable of storing batteries is fixedly installed on the bottom of the side of the frame (1), and sensors (12) capable of limiting the position of the device are fixedly installed on the tops of both sides of the frame (1).

4. A solar photovoltaic panel cleaning and dust removal device according to claim 2, characterized in that: The driving mechanism comprises a first driving motor (13), a third bevel gear (14), a fourth bevel gear (15), a rotating rod (16) and a second pulley (17); the third bevel gear (14) is spline-connected to the output end of the first driving motor (13), and the first driving motor (13) is fixedly mounted on the middle part of the side of the frame (1); the top and bottom ends of the third bevel gear (14) are meshed with the fourth bevel gear (15), and the two fourth bevel gears (15) are fixedly connected to the rotating rod (16) at the center of the circle on the side away from each other; the ends of the two rotating rods (16) away from each other are fixedly connected to the second pulley (17); the two second pulleys (17) are respectively transmission-connected to the ends of the two belts (8) away from the first pulley (7); the outsides of the two rotating rods (16) are sleeved with support plates (18) capable of supporting and limiting them; the support plates (18) are fixedly connected to the side of the frame (1).

5. A solar photovoltaic panel cleaning and dust removal device according to claim 1, characterized in that: The cleaning mechanism comprises a second drive motor (19) and a roller brush (20); the roller brush (20) is spline-connected to the output shaft of the second drive motor (19) and is rotatably connected to the inside of the bracket (3); the second drive motor (19) is fixedly mounted on the upper surface of the bracket (3).

6. A solar photovoltaic panel cleaning and dust removal device according to claim 5, characterized in that: The water adding mechanism comprises a water tank (21), a telescopic tube (22), an electromagnetic valve (23) and a dripping pipe (24); the water tank (21) is fixedly mounted on the top of the frame (1) and the telescopic tube (22) is connected to the lower surface of the water tank (21); the electromagnetic valve (23) is fixedly mounted on the top of the telescopic tube (22); the dripping pipe (24) is connected to an end of the telescopic tube (22) away from the water tank (21) and the dripping point is arranged on the side of the bracket (3) and corresponds to the roller brush (20).

7. A solar photovoltaic panel cleaning and dust removal device according to claim 1, characterized in that: The electrostatic adsorption mechanism comprises a positive electrode plate (25) and a negative electrode plate (26); the positive electrode plate (25) is fixedly mounted on the top and bottom ends of one side of the bracket (3); and a negative electrode plate (26) parallel to and corresponding to the two positive electrode plates (25) is fixedly connected in the middle; the number of the electrostatic adsorption mechanisms is two, and the two electrostatic adsorption mechanisms are symmetrically arranged with the vertical midline of the bracket (3) as a symmetry axis.

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