Solar panel cleaning device

Abstract

The utility model discloses a solar panel cleaning device which comprises a box body arranged above a solar panel and moving in the length direction, pulleys capable of moving on a frame used for installing and fixing the solar panel are arranged at the two ends of the box body, and the two ends of the box body further extend downwards to be provided with two sets of side pulleys. Wherein one group of side pulleys are opposite to the side edges of the frame, the other group of side pulleys are opposite to the pulleys, a cleaning mechanism which is in contact with the solar surface and can move in the length direction of the box body is installed in the box body, and a first driving mechanism for driving the pulleys to move and a second driving mechanism for driving the cleaning mechanism are both installed on the inner side of the box body. An original frame used for installing the solar panel is used as a track of the pulley and a bearing piece for supporting the whole box body, the whole cleaning process does not need manual operation, the solar panel cleaning device is suitable for areas with sparsely populated and high installation positions, potential safety hazards are avoided, and labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of cleaning equipment, in particular to a solar panel cleaning device. Background Art

[0002] Solar panels installed outdoors for a long time are eroded by wind and sand, and a dirt layer will form on the surface, which affects the absorption and conversion efficiency of the solar panels. Therefore, it is necessary to clean the solar panels regularly. The traditional cleaning method is to clean them manually with tools such as water guns and brushes. For solar panels installed at high locations and sparsely populated, on the one hand, it is difficult to clean and there are safety hazards. On the other hand, the cleaning effect is not good. Utility Model Content

[0003] The utility model provides a solar panel cleaning device with good cleaning effect and low labor cost.

[0004] The solar panel cleaning device described in the utility model includes a box body arranged above the solar panel and movable along the length direction, and pulleys that can move on the frame for installing and fixing the solar panel are arranged at both ends of the box body, and two groups of side pulleys are also extended downward at both ends of the box body, one group of side pulleys is opposite to the side of the frame, and the other group of side pulleys is opposite to the pulley, and a cleaning mechanism that contacts the solar surface and can move along the length direction of the box body is installed in the box body, and a first driving mechanism that drives the pulley to move and a second driving mechanism that drives the cleaning mechanism are both installed on the inside of the box body.

[0005] Preferably, two or more cleaning mechanisms are provided in the box.

[0006] Preferably, the cleaning mechanism includes a cleaning wheel, a support plate for installing the cleaning wheel, and a support shaft and a screw rod installed at both ends on the inner side of both ends of the box body, and the two ends of the support plate are respectively provided with a slider sleeved on the support shaft and moving along the support shaft, and a nut sleeved on the screw rod, and side plates are extended downward on both sides of the support plate, and the lower end of the side plate is connected to a mounting plate for installing a bearing, a motor connected to the bearing is arranged in the middle of the support part, and the other end of the bearing is driven and connected to the cleaning wheel, and a motor driven and connected to the screw rod is arranged on the inner side of the box body.

[0007] Preferably, a partition is provided in the middle of the box body to separate two adjacent groups of cleaning mechanisms, a motor for driving a screw rod is installed on the partition, a flat plate for installing the screw rod and a support shaft is provided at the lower part of the partition, a driven gear is provided at the end of the screw rod, a driving gear is installed on the rotating shaft of the motor, and the driving gear and the driven gear are connected by a belt drive.

[0008] Preferably, support wheels contacting a frame for fixing the solar panel are also installed below the flat plate.

[0009] Preferably, hot air blowers for blowing hot air or cold air toward the cleaning wheel are installed on both sides of the mounting plate, and the hot air blower has a built-in heating device. The hot air blower and the heating device are controlled and connected to the MCU (microcontroller unit). The MCU (microcontroller unit) is also connected to a temperature sensor. The built-in heating device of the hot air blower is determined by the management personnel based on the temperature measurement of the temperature sensor to decide whether to turn on or off the heating device, thereby realizing the switching of hot air or cold air of the hot air blower.

[0010] Preferably, both ends of the box body are provided with Hall sensors for detecting whether the cleaning wheel is in place, and a contact sheet for sensing the Hall sensor is installed on the nut.

[0011] Preferably, a lower slide groove is provided below the frame, and lower pulleys extending downward at both ends of the box body are buckled into the lower slide groove and form a three-side clamping frame with the pulley and the side pulleys.

[0012] Preferably, a drag chain groove for wiring is also provided inside the box.

[0013] Preferably, both ends of the frame are extended outwards to form extension frames, and the ends of the extension frames are installed with limit blocks, and electromagnetic blocks for detecting the position of the box body are installed on the limit blocks.

[0014] The solar panel cleaning device described above utilizes the original frame for installing the solar panel as the track of the pulley and as the bearing member for supporting the entire box body, and will not cause excessive pressure on various areas of the solar panel surface. Since the solar panel is arranged at an angle, side pulleys extending downward from both ends of the box body can play a mobile clamping role to prevent the box body from slipping relative to the solar panel, so that the box body as a whole can drive the cleaning mechanism to move back and forth along the length direction of the solar panel, and form a cross joint motion with the cleaning mechanism by moving back and forth along the length direction of the box body, thereby ensuring that the entire surface of the solar panel can be cleaned, there will be no cleaning dead corners, the ineffective cleaning area of ​​the panel surface is reduced, and the cleaning effect is improved. The entire cleaning process does not require manual operation, and is suitable for sparsely populated areas and areas with higher installation positions, avoiding safety hazards and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the assembly of a solar panel cleaning device.

[0016] Figure 2 The figure is a schematic diagram of the structure of a solar panel cleaning device.

[0017] Figure 3 Schematic diagram of the internal structure of the box.

[0018] Figure 4 It is a side view of the internal structure of the box.

[0019] Figure 5It is a top view of the internal structure of the box. DETAILED DESCRIPTION

[0020] like Figure 1-5 As shown, a solar panel cleaning device includes a box 1 arranged above the solar panel and moving along the length direction, pulleys 2 that can move on a frame 3 for installing and fixing the solar panel are provided at both ends of the box, and two groups of side pulleys 4 are also extended downward at both ends of the box, one group of side pulleys is opposite to the side of the frame, and the other group of side pulleys is opposite to the pulley, a cleaning mechanism 5 that contacts the solar surface and can move along the length direction of the box is installed in the box, and a first driving mechanism 6 that drives the pulley to move and a second driving mechanism 7 that drives the cleaning mechanism are both installed on the inside of the box. The original frame for installing the solar panel is used as the track of the pulley and as a bearing member to support the entire box, so that excessive pressure will not be caused to various areas of the solar panel surface. Since the solar panel is arranged at an angle, side pulleys are extended downward at both ends of the box to play a mobile clamping role, preventing the box from slipping relative to the solar panel, so that the box as a whole can drive the cleaning mechanism to move back and forth along the length of the solar panel, and form a cross joint motion with the cleaning mechanism by moving back and forth along the length of the box, ensuring that the entire surface of the solar panel can be cleaned, there will be no cleaning dead corners, the ineffective cleaning area of ​​the panel surface is reduced, and the cleaning effect is improved. The entire cleaning process does not require manual operation, is suitable for sparsely populated areas and high installation positions, avoids safety hazards and reduces labor costs.

[0021] Furthermore, in order to enable the pulleys at both ends of the box to move more stably on the frame that fixes the solar panel, a slide groove 301 may be provided on the side of the frame.

[0022] Two pulleys are arranged at the end of the box body and move along the frame. The pulleys are installed at the end of the box body through bearings. At the same time, gears are installed at the end of the bearings and are connected to the gears of the motor rotating shaft through belts.

[0023] When the solar panels are installed in actual applications, cost issues are taken into consideration and two solar panels are installed side by side to form two rows of solar panels, which are fixed and separated by a frame in the middle. This increases the vertical cleaning area. In order to improve the cleaning efficiency, two or more cleaning mechanisms 5 are provided in the box.

[0024] The cleaning mechanism 5 includes a cleaning wheel 501, a support plate 502 for installing the cleaning wheel, and a support shaft 503 and a screw rod 504 installed at both ends of the box body. The two ends of the support plate 502 are respectively provided with a slider 505 sleeved on the support shaft and moving along the support shaft, and a nut 506 sleeved on the screw rod. The two sides of the support plate are provided with side plates 507 extending downward, and the lower end of the side plate is connected to a mounting plate 509 for installing a bearing 508. A motor connected to the bearing is arranged in the middle of the support part, and the other end of the bearing is connected to the cleaning wheel drive. A motor connected to the screw rod is arranged inside the box body. The screw rod is driven to rotate by the motor. Because the nut is sleeved on the screw rod and under the limiting effect of the bearing shaft, the nut can only move back and forth along the screw rod, thereby driving the cleaning wheel to move on the solar panel. At the same time, the motor drives the cleaning wheel to rotate to clean the surface of the solar panel.

[0025] A partition 8 is provided in the middle of the box body to separate two adjacent groups of cleaning mechanisms. A motor for driving a screw is installed on the partition. A flat plate 9 for installing a screw and a support shaft is provided at the lower part of the partition. A driven gear 10 is provided at the end of the screw. A driving gear 11 is installed on the rotating shaft of the motor. The driving gear and the driven gear are connected by a belt 12. Through the cooperation of the belt and the gear, one motor can drive two groups of cleaning wheels to move back and forth synchronously, reducing the cost of arranging power equipment. The above driving mechanism is not limited to belt structure drive, and can also be driven by other driving structures.

[0026] Since the box is too long and the number of cleaning wheels is increased, the downward pressure on the solar panel will increase. Therefore, a support wheel 13 in contact with the frame for fixing the solar panel is also installed under the flat plate 9, so that the downward pressure of the entire box is applied to the frame for fixing the solar panel, thereby protecting the solar panel.

[0027] Dust and dirt may remain near the solar panel cleaned by the cleaning wheel or on the cleaning wheel itself. A hot air blower 14 for blowing hot air or cold air to the cleaning wheel is installed on both sides of the mounting plate. The hot air blower has a built-in heating device. The hot air blower and the heating device are connected to the MCU (microcontroller unit) for control. The MCU (microcontroller unit) is also connected to a temperature sensor. The built-in heating device of the hot air blower determines whether to turn on or off the heating device based on the temperature measurement of the temperature sensor and is judged by the MCU (microcontroller unit) to switch the hot air or cold air of the hot air blower. It can not only be used to blow away the dust remaining on the solar panel or the cleaning wheel, but also can be used to heat the solar panel or the cleaning wheel to remove snow and frost on rainy days or in winter when it snows and frosts, thereby improving the cleaning efficiency.

[0028] Both ends of the box are provided with Hall sensors for detecting whether the cleaning wheel is in place, and a contact piece 15 for sensing the Hall sensor is installed on the nut, which can be used to detect whether the cleaning wheel is in place, so as to understand the cleaning effect.

[0029] Because most solar panels are arranged outside the Gobi Desert where there is plenty of sunshine, and because there is strong wind and sand outside the Gobi Desert, the cleaning device will inevitably shake or fall off the frame during the entire movement process. Therefore, a sliding groove is provided under the frame, and lower pulleys 16 that are inserted into the sliding groove and form a three-sided clamping frame with the pulley and the side pulleys extend downward, which can further increase the stability of the box and avoid shaking or falling off the frame.

[0030] The inner side of the box is also provided with a drag chain groove 17 for wiring, so as to avoid the wiring being randomly routed inside the box, thereby affecting the cleaning of the cleaning wheel.

[0031] In order to prevent the box from blocking the solar panel when cleaning is not in progress, a position for placing the box needs to be set. Therefore, the two ends of the frame are extended outward with an extension frame 18, and the ends of the extension frame are installed with a limit block 19, and a sensor for detecting the position of the box is installed on the limit block. In this way, the cleaning mechanism and the solar panel are in contact, and the pulley walks on the frame for fixing the solar panel, and the extension frame set up separately is used as a parking position. The extension frame and the limit block are also set on the frame, and the power required by the cleaning mechanism and the pulley also relies on the solar panel and the lithium battery of the entire solar cleaning device. In this way, it can be physically and circuitly isolated from the solar panel. Only after receiving the wireless command issued by the on-site workstation, the solar cleaning device will walk out of the parking position and walk on the solar panel for cleaning.

Claims

1. A solar panel cleaning device, It is characterized in that The invention comprises a box (1) arranged above a solar panel and movable in the length direction, wherein pulleys (2) movable on a frame (3) for mounting and fixing the solar panel are arranged at both ends of the box, and the two ends of the box are also provided with two sets of side pulleys (4) extending downward, wherein one set of side pulleys is opposite to the side of the frame, and the other set of side pulleys is opposite to the pulley, wherein a cleaning mechanism (5) in contact with the surface of the solar panel and movable in the length direction of the box is installed in the box, and a first driving mechanism (6) for driving the pulley to move and a second driving mechanism (7) for driving the cleaning mechanism are both installed inside the box.

2. The solar panel cleaning device according to claim 1, It is characterized in that Two or more cleaning mechanisms (5) are provided in the box.

3. The solar panel cleaning device according to claim 1 or 2, It is characterized in that The cleaning mechanism (5) comprises a cleaning wheel (501), a support plate (502) for mounting the cleaning wheel, and a support shaft (503) and a lead screw (504) mounted on the inner sides of the two ends of the box body at both ends; a slider (505) sleeved on the support shaft and moving along the support shaft and a nut (506) sleeved on the lead screw are respectively provided at both ends of the support plate (502); side plates (507) are provided on both sides of the support plate extending downward; the lower ends of the side plates are connected to a mounting plate (509) for mounting a bearing (508); a motor connected to the bearing is provided in the middle of the support portion; the other end of the bearing is connected to the cleaning wheel drive; and a motor connected to the lead screw is provided inside the box body.

4. The solar panel cleaning device according to claim 3, It is characterized in that A partition (8) is provided in the middle of the box body to separate two adjacent groups of cleaning mechanisms. A motor for driving a screw rod is installed on the partition. A flat plate (9) for mounting the screw rod and a support shaft is provided at the lower part of the partition. A driven gear (10) is provided at the end of the screw rod. A driving gear (11) is installed on the rotating shaft of the motor. The driving gear and the driven gear are connected by a belt (12).

5. The solar panel cleaning device according to claim 4, It is characterized in that Support wheels (13) are also installed below the flat plate (9) and are in contact with a frame for fixing the solar panel.

6. The solar panel cleaning device according to claim 3, It is characterized in that Hot air blowers (14) for blowing hot air or cold air toward the cleaning wheel are installed on both sides of the installation plate.

7. The solar panel cleaning device according to claim 3, It is characterized in that Both ends of the box body are provided with Hall sensors for detecting whether the cleaning wheel is in place, and a contact sheet (15) for sensing the Hall sensor is mounted on the nut.

8. The solar panel cleaning device according to claim 1, It is characterized in that A lower slide groove is provided below the frame, and lower pulleys (16) are provided downwardly extending from both ends of the box body and are buckled into the lower slide groove to form a three-side clamping frame with the pulley and the side pulleys.

9. The solar panel cleaning device according to claim 1, It is characterized in that The inner side of the box is also provided with a drag chain groove (17) for wiring.

10. The solar panel cleaning device according to claim 1, It is characterized in that Extension frames (18) are provided at both ends of the frame extending outwards, and position limit blocks (19) are installed at the ends of the extension frames. Sensors for detecting the position of the box body are installed on the position limit blocks.

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