Automatic cleaning system for photovoltaic power generation panel of parking lot

Abstract

An automatic cleaning system for a photovoltaic power generation panel of a parking lot comprises a cleaning device, a current relay, a UPSn module and a controller, a photovoltaic assembly and an inverter are connected in series through a cable, the current relay is arranged on the cable, the output end of the current relay is connected with the input end of the UPSn module, the output end of the UPSn module is connected with the input end of the controller, and the cleaning device is connected with the controller. The output end of the controller is connected with the cleaning device through a control cable; according to the utility model, whether a covering object exists on the photovoltaic module can be automatically judged, and the photovoltaic panel can be automatically maintained and cleaned at regular intervals, so that the light receiving area of the photovoltaic module is ensured, and the power generation efficiency of the photovoltaic module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar power generation, in particular to an automatic cleaning system for photovoltaic power generation panels in a parking lot. Background Art

[0002] Photovoltaic panels are installed on roofs of parking lots, factories, etc., and photovoltaic power generation using solar energy as a supplementary power generation method has played an extremely important role in the field of electricity production. Photovoltaic power generation efficiency is an important technical indicator for evaluating photovoltaic power generation capacity. Due to the particularity of photovoltaic power generation, it requires that photovoltaic panels must be placed outdoors to ensure that they can maximize the use of solar energy; but because photovoltaic panels are placed outdoors for a long time, they are easily affected by bad weather, such as strong winds, heavy rains, haze, etc. The outer surface of photovoltaic panels is easily covered with dust or various coverings such as plastic films, which greatly reduces the light-receiving area of ​​photovoltaic panels, thereby seriously affecting their power generation efficiency. The existing solution is to regularly clean all photovoltaic panels by manpower. This method has poor real-time performance, a large cleaning area, high cost, and is time-consuming and labor-intensive. Utility Model Content

[0003] In view of the technical problems existing in the background technology, the utility model provides an automatic cleaning system for photovoltaic panels in a parking lot; the system can automatically determine whether there is any cover on the photovoltaic components, and can also automatically maintain and clean the photovoltaic panels regularly to ensure the light-receiving area of ​​the photovoltaic components, thereby improving the power generation efficiency of the photovoltaic components.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions to achieve:

[0005] A parking lot photovoltaic panel automatic cleaning system comprises a cleaning device, a current relay, a UPSn module and a controller. The photovoltaic assembly and the inverter are connected in series through a cable line, the cable line is provided with a current relay, a NOT gate or an inverter is integrated in the current relay, the output end of the current relay is connected to the input end of the UPSn module, the output end of the UPSn module is connected to the input end of the controller, and the output end of the controller is connected to the cleaning device through a control cable.

[0006] In the preferred scheme, the cleaning device includes a control box, a transmission track, a roller brush and a water supply pipe; the control box is connected to the controller through a control cable, one side of the control box is connected to the water supply pipe, and the other side of the control box is connected to the roller brush and controls the roller brush to rotate and clean, and a transmission track is provided on the side of the control box, and the transmission track rotates and drives the entire cleaning device to move along the photovoltaic module.

[0007] In a preferred solution, the control box includes a box shell, a driving motor is installed in the box shell, a driving shaft of the driving motor is connected to a first rotating shaft, a driving gear and a roller brush are sleeved on the first rotating shaft, the driving gear and the driven gear are arranged in parallel and meshingly connected, and a second rotating shaft is vertically arranged at the axis of the driven gear;

[0008] The end of the second rotating shaft is vertically arranged in the bearing seat and can rotate freely. A driving wheel is sleeved on the second rotating shaft, and a transmission crawler is arranged on the outer side of the driving wheel.

[0009] In a preferred solution, a water tank is arranged inside the control box, and a water supply plate is arranged parallel to the side of the roller brush. The water tank is connected to the water supply pipe, and the interior of the water supply plate is a hollow structure and connected to the water tank.

[0010] In a preferred solution, a spray plate is arranged on the top of the water supply plate, and a scraper is installed on the bottom of the water supply plate.

[0011] In a preferred solution, the UPSn module includes a low-pass filter, a voltage regulator and a second relay, and the low-pass filter, the voltage regulator and the second relay are electrically connected in sequence.

[0012] In a preferred solution, a series of single chip microcomputers are arranged inside the controller.

[0013] An automatic cleaning system for parking lot photovoltaic panels can achieve the following beneficial effects:

[0014] 1. This system can automatically monitor the regional current on the photovoltaic module through the relay, and judge whether the current is lower than the threshold current of the current relay. Through the above comparison, it can be determined whether there is any covering on the photovoltaic module. With the help of the cleaning device, the covering on the photovoltaic module can be removed in time to improve the power generation efficiency;

[0015] 2. This system can regularly clean photovoltaic modules by using a motor-driven roller brush. Compared with manual cleaning methods, its cleaning quality and efficiency have been greatly improved, which not only improves the power generation efficiency of photovoltaic modules but also saves the labor cost of modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the internal structure of the control box of the utility model;

[0019] Figure 3 This is a side view of the cleaning device of the utility model;

[0020] Figure 4 It is a schematic diagram of the utility model system;

[0021] Figure 5 This is a schematic diagram of the UPS template system of the utility model.

[0022] In the figure: photovoltaic component 1, control box 2, box shell 201, drive motor 202, first rotating shaft 203, drive gear 204, driven gear 205, second rotating shaft 206, bearing seat 207, water tank 208, water supply plate 3, spray plate 301, scraper 302, roller brush 4, inverter 5, current relay 6, controller 7, control cable 8, transmission crawler 9, drive wheel 901, water supply pipe 10, UPSn module 11, low-pass filter 111, voltage regulator 112, second relay 113, cable 12. DETAILED DESCRIPTION

[0023] like Figure 1 and Figure 4 As shown, an automatic cleaning system for photovoltaic panels in a parking lot, the system includes a cleaning device, a current relay 6, a UPSn module 11 and a controller 7, the photovoltaic assembly 1 and the inverter 5 are connected in series through a cable 12, the cable 12 is provided with a current relay 6, the output end of the current relay 6 is connected to the input end of the UPSn module 11, the output end of the UPSn module 11 is connected to the input end of the controller 7, and the output end of the controller 7 is connected to the cleaning device through a control cable 8;

[0024] The current relay 6 integrates a NOT gate or an inverter. When there is an obstruction or serious dust accumulation in a certain area on the photovoltaic component 1, the power generation of the photovoltaic component 1 in this area will be significantly reduced. At this time, the current value of the current path where the photovoltaic component 1 is located will be significantly reduced. When the current value is significantly lower than the threshold current of the current relay 6 integrated with the NOT gate or inverter, the current relay 6 of the branch where the photovoltaic panel 1 is located is closed to form a loop. The current relay 6 supplies power to the controller 7 through the UPSn module 11 and drives the cleaning device to work. When the cleaning device finishes cleaning, it will automatically return to the starting point and prepare for the next cleaning.

[0025] The preferred solution is Figure 2 and Figure 3 As shown, the cleaning device includes a control box 2, a drive crawler 9, a roller brush 4 and a water supply pipe 10; the control box 2 is connected to the controller 7 through a control cable 8, one side of the control box 2 is connected to the water supply pipe 10, and the other side of the control box 2 is connected to the roller brush 4 and controls the roller brush 4 to rotate and clean, and the side of the control box 2 is provided with a drive crawler 9, and the drive crawler 9 rotates and drives the entire cleaning device to move along the photovoltaic module 1;

[0026] The control box 2 includes a box shell 201, in which a driving motor 202 is installed, and a driving shaft of the driving motor 202 is connected to a first rotating shaft 203, on which a driving gear 204 and a roller brush 4 are sleeved, the driving gear 204 and a driven gear 205 are arranged in parallel and meshingly connected, and a second rotating shaft 206 is vertically arranged at the axis of the driven gear 205; the end of the second rotating shaft 206 is vertically arranged in a bearing seat 207 and can rotate freely, and a driving wheel 901 is sleeved on the second rotating shaft 206, and a transmission crawler 9 is arranged on the outer side of the driving wheel 901;

[0027] During the operation of the cleaning device, the driving motor 202 is first started and drives the first rotating shaft 203 to rotate around its own axis. The rotation of the first rotating shaft 203 drives the roller brush 4 to rotate synchronously and perform the scrubbing work. The first rotating shaft 203 also drives the driving gear 204 to rotate synchronously. The rotation of the driving gear 204 drives the driven gear 205 to rotate.

[0028] The driven gear 205 then drives the second rotating shaft 206 to rotate around its own axis, and the second rotating shaft 206 drives the driving wheel 901 to rotate synchronously and drives the entire cleaning device to move forward during the scrubbing process. The driving wheel 901 is sleeved with a transmission belt 9. When the robot moves across the interval to the adjacent component area, the transmission belt 9 enables the device to smoothly cross the gap, thereby improving the working range of the device.

[0029] The preferred solution is Figure 2 and Figure 3 As shown, a water tank 208 is arranged inside the control box 2, and a water supply plate 3 is arranged in parallel on the side of the roller brush 4, the water tank 208 is connected to the water supply pipe 10, and the interior of the water supply plate 3 is a hollow structure and connected to the water tank 208; a spray plate 301 is arranged on the top of the water supply plate 3, and a scraper 302 is arranged on the bottom of the water supply plate 3;

[0030] During the cleaning process of the device, external water source is introduced into the water tank 208 through the water supply pipe 10, and the water tank 208 then transports the water to the water supply plate 3, and finally sprays out through the spray plate 301 on the top of the water supply plate 3 to rinse the photovoltaic component 1 below. The device realizes the flushing + brushing cleaning method through this structure, which effectively improves the cleaning quality of the device.

[0031] The preferred solution is Figure 5 As shown, the UPSn module 11 includes a low-pass filter 111, a voltage regulator 112 and a second relay 113, and the low-pass filter 111, the voltage regulator 112 and the second relay 113 are electrically connected in sequence.

[0032] The preferred solution is Figure 4 As shown, the controller 7 is internally provided with a 51 series single chip microcomputer.

[0033] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An automatic cleaning system for photovoltaic panels in a parking lot, the system comprising a cleaning device, a current relay (6), a UPSn module (11) and a controller (7), characterized in that: The photovoltaic module (1) and the inverter (5) are connected in series via a cable (12); a current relay (6) is provided on the cable (12); a NOT gate or an inverter is integrated in the current relay (6); an output end of the current relay (6) is connected to an input end of a UPSn module (11); an output end of the UPSn module (11) is connected to an input end of a controller (7); and an output end of the controller (7) is connected to a cleaning device via a control cable (8).

2. The automatic cleaning system for parking lot photovoltaic panels according to claim 1 is characterized in that: The cleaning device comprises a control box (2), a drive crawler (9), a roller brush (4) and a water supply pipe (10); the control box (2) is connected to a controller (7) via a control cable (8); one side of the control box (2) is connected to the water supply pipe (10); the other side of the control box (2) is connected to the roller brush (4) and controls the roller brush (4) to rotate and clean; a drive crawler (9) is provided on the side of the control box (2); the drive crawler (9) rotates and drives the entire cleaning device to move along the photovoltaic module (1).

3. The automatic cleaning system for parking lot photovoltaic panels according to claim 2 is characterized in that: The control box (2) comprises a box shell (201), a driving motor (202) is arranged in the box shell (201), a driving shaft of the driving motor (202) is connected to a first rotating shaft (203), a driving gear (204) and a roller brush (4) are sleeved on the first rotating shaft (203), the driving gear (204) and the driven gear (205) are arranged in parallel and meshingly connected, and a second rotating shaft (206) is vertically arranged at the axis of the driven gear (205); The end of the second rotating shaft (206) is vertically arranged in the bearing seat (207) and can rotate freely. A driving wheel (901) is sleeved on the second rotating shaft (206), and a transmission crawler (9) is arranged on the outer side of the driving wheel (901).

4. The automatic cleaning system for parking lot photovoltaic panels according to claim 3 is characterized in that: A water tank (208) is arranged inside the control box (2), and a water supply plate (3) is arranged in parallel on the side of the roller brush (4); the water tank (208) is connected to the water supply pipe (10), and the interior of the water supply plate (3) is a hollow structure and is connected to the water tank (208).

5. The automatic cleaning system for parking lot photovoltaic panels according to claim 4 is characterized in that: A spray plate (301) is arranged on the top of the water supply plate (3), and a scraper plate (302) is installed on the bottom of the water supply plate (3).

6. The automatic cleaning system for parking lot photovoltaic panels according to claim 1, characterized in that: The UPSn module (11) comprises a low-pass filter (111), a voltage regulator (112) and a second relay (113) therein; the low-pass filter (111), the voltage regulator (112) and the second relay (113) are electrically connected in sequence.

7. The automatic cleaning system for parking lot photovoltaic panels according to claim 1, characterized in that: The controller (7) is internally provided with a 51 series single chip microcomputer.

Images