A wiper-type photovoltaic cleaning device

Abstract

The utility model relates to photovoltaic equipment cleaning technical field especially, and a kind of wiper type photovoltaic cleaning device, including photovoltaic panel assembly, the four corners of photovoltaic panel assembly bottom are all equipped with fixed column by bolt, the outside of fixed column is equipped with support mechanism by bolt, the top of support mechanism is respectively equipped with fixed shell and frame by bolt, the inner chamber of box is respectively equipped with driving motor, micro PLC controller and timer module by bolt.After reaching predetermined time, timer module passes trigger signal to micro PLC controller, controls driving motor to work two minutes, drives reciprocating screw rod to rotate and makes installation slider reciprocate left and right, and rubber scraping strip is scraped to photovoltaic panel surface, removes dust, reaches preset time, and scraping rod assembly moves to left initial position, so as to realize automatic cleaning, and simple structure, small volume, low operation and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic equipment cleaning technology, specifically a wiper-type photovoltaic cleaning device. Background Technology

[0002] Photovoltaic equipment is a general term for a series of devices and systems used to convert solar energy into electrical energy. Photovoltaic panels are exposed to the outdoors for a long time, and their surfaces are prone to accumulating dust, bird droppings, fallen leaves and other debris, which leads to a decrease in light transmittance and a reduction in power generation efficiency. Therefore, they need to be cleaned.

[0003] A search revealed that the announcement number is CN221828876U, entitled "A Solar Photovoltaic Cleaning Device," which includes an easily installable photovoltaic panel. Research and analysis revealed that although this invention uses spray holes, a fan, and cleaning rollers to first rinse, then dry, and finally clean the dust and other impurities on the surface of the photovoltaic panel, thus improving the cleaning effect and increasing the photoelectric conversion efficiency of the photovoltaic panel, it still has the following shortcomings to some extent.

[0004] For example, the above-mentioned method of cleaning photovoltaic panels using roller-type components has a complex structure, large size, poor flexibility in adapting to photovoltaic panels of different widths, and is prone to leaving water stains after cleaning. In addition, the rollers need to be cleaned frequently, otherwise the stains on the surface of the rollers will contaminate the photovoltaic panels, resulting in incomplete cleaning. The disassembly of the rollers is time-consuming and labor-intensive, and the daily maintenance cost is high. Moreover, it requires manual operation and cannot achieve automatic cleaning. In order to solve the above technical problems, we have designed a wiper-type photovoltaic cleaning device. Utility Model Content

[0005] The purpose of this utility model is to provide a wiper-type photovoltaic cleaning device, which has the advantages of simple structure, convenient and quick disassembly and replacement, automatic cleaning, and low maintenance cost of cleaning components. It solves the problems of complex structure, large size, time-consuming and labor-intensive disassembly and replacement, high daily maintenance cost, need for manual operation, and inability to achieve automatic cleaning.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wiper-type photovoltaic cleaning device, comprising a photovoltaic panel assembly, with fixing posts bolted to the four corners of the bottom of the photovoltaic panel assembly, a support mechanism bolted to the outer side of the fixing posts, a fixing shell and a frame bolted to the top of the support mechanism, a housing welded to the left side of the fixing shell, a drive motor, a micro PLC controller and a timer module bolted to the inner cavity of the housing, guide slide rods and reciprocating screws mounted on the front and rear sides of the inner cavity of the fixing shell, mounting sliders movably fitted onto the surfaces of the reciprocating screws and guide slide rods, a guide groove opened on the front side of the inner cavity of the frame, snap-fit ​​shells mounted on the inner cavity of the guide groove and the front side of the mounting slider, and a scraper assembly mounted between the front and rear snap-fit ​​shells.

[0007] Preferably, the scraper assembly includes a connecting shell, a support spring is fixedly connected to the top of the inner cavity of the connecting shell, a connecting push plate is fixedly connected to the bottom of the support spring, and a rubber scraper strip is installed through the connecting shell and bolted to the bottom of the connecting push plate.

[0008] Preferably, the scraper assembly has snap-fit ​​blocks welded to both the front and rear sides, and a snap-fit ​​fastener is inserted and installed on the outer side of the snap-fit ​​housing.

[0009] Preferably, the support mechanism includes a support base rod, a support top rod is slidably inserted into the top of the support base rod, and a positioning screw is inserted into the outer side of the support base rod.

[0010] Preferably, the two sides of the reciprocating screw surface are movably connected to the fixed housing via bearings, and the left side of the reciprocating screw passes through the fixed housing and is fixedly connected to the drive motor via a coupling.

[0011] Preferably, a sliding opening is provided on the front side of the inner cavity of the fixed shell, and a spray pipe assembly is installed on the top of the fixed shell by bolts.

[0012] Preferably, the left and right sides of the rear side of the frame are fixed to the fixed shell and the box body by riveting, and a protective cover plate is fixedly connected to the top of the left side of the inner cavity of the frame.

[0013] Preferably, the output terminal of the micro PLC controller is electrically connected to the drive motor, and the output terminal of the timer module is electrically connected to the micro PLC controller.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. After the predetermined time is reached, the timer module transmits the trigger signal to the micro PLC controller, which controls the drive motor to work for two minutes, driving the reciprocating screw to rotate and causing the installation slider to move back and forth. The rubber scraper scrapes the surface of the photovoltaic panel to remove dust. After the preset time is reached, the scraper assembly moves to the initial position on the left. This can achieve automatic cleaning, and the structure is simple, the size is small, and the operation and maintenance cost is low.

[0015] 2. Pull out the front and rear clips from the snap-fit ​​housings on both sides, pull the scraper assembly upwards to disengage the snap-fit ​​blocks at both ends from the snap-fit ​​housings, and then replace the rubber scraper strip after removing the scraper assembly. This operation is more convenient and labor-saving, and improves the efficiency of later maintenance. Attached Figure Description

[0016] Figure 1 This is an axonometric view of the structure of this utility model; Figure 2 This is a left axonometric view of a partial structure of this utility model; Figure 3 This is an internal axonometric view of the fixed shell and the box body of this utility model; Figure 4 This is a rear axonometric view of the frame of this utility model; Figure 5 This is a side sectional axonometric view of the scraper assembly of this utility model; Figure 6 This is an exploded view of the snap-fit ​​plug, snap-fit ​​shell, and snap-fit ​​fastener of this utility model.

[0017] In the diagram: 1. Photovoltaic panel assembly; 2. Fixing column; 3. Fixing shell; 4. Box body; 5. Protective cover plate; 6. Support mechanism; 7. Frame; 8. Spray pipe assembly; 9. Support top rod; 10. Positioning screw; 11. Support bottom rod; 12. Drive motor; 13. Micro PLC controller; 14. Timer module; 15. Scraper assembly; 16. Snap-fit ​​plug; 17. Reciprocating screw; 18. Guide slide rod; 19. Guide slide groove; 20. Snap-fit ​​shell; 21. Connecting push plate; 22. Connecting shell; 23. Support spring; 24. Rubber scraper strip; 25. Fastener; 26. Mounting slider. Detailed Implementation

[0018] Please see Figures 1-6A wiper-type photovoltaic cleaning device includes a photovoltaic panel assembly 1. Each of the four corners of the bottom of the photovoltaic panel assembly 1 is bolted with a fixing post 2. A support mechanism 6 is bolted to the outside of each fixing post 2. The support mechanism 6 facilitates the fixed installation of a fixing shell 3 and a frame 7 to the fixing posts 2. The top of the support mechanism 6 is bolted with the fixing shell 3 and the frame 7, both made of aluminum alloy. A housing 4 is welded to the left side of the fixing shell 3. A drive motor 12, a micro PLC controller 13, and a timer module 14 are bolted into the inner cavity of the housing 4. The front of the inner cavity of the fixing shell 3... Guide slide rods 18 and reciprocating screws 17 are installed on the rear two sides respectively. The surfaces of guide slide rods 18 and reciprocating screws 17 are coated with grease to ensure smoother cooperation with the mounting slider 26. The mounting slider 26 is movably fitted on the surfaces of the reciprocating screw 17 and guide slide rods 18. A guide groove 19 is opened on the front side of the inner cavity of the frame 7. The inner cavity of the guide groove 19 is coated with grease to prevent the front snap-fit ​​shell 20 from getting stuck inside. Snap-fit ​​shells 20 are installed in the inner cavity of the guide groove 19 and on the front side of the mounting slider 26. A scraper assembly 15 is installed between the front and rear snap-fit ​​shells 20. Please see Figure 5 The scraper assembly 15 includes a connecting shell 22. A support spring 23 is fixedly connected to the top of the inner cavity of the connecting shell 22, and a connecting push plate 21 is fixedly connected to the bottom of the support spring 23. By setting the support spring 23, the rubber scraper 24 can be pushed to make close contact with the photovoltaic panel surface by releasing the elastic force, resulting in better cleaning and scraping effect. The bottom of the connecting push plate 21 passes through the connecting shell 22 and is bolted to install the rubber scraper 24. The rubber scraper 24 can be made of nitrile rubber, and the side facing the photovoltaic panel has a wedge-shaped cross section to reduce water stains. Please see Figure 3 and Figure 6 The scraper assembly 15 has snap-fit ​​blocks 16 welded on both the front and rear sides. The snap-fit ​​housing 20 has a snap-fit ​​fastener 25 installed on the outer side. The snap-fit ​​fastener 25 is a U-shaped spring snap-fit. Please see Figure 2 The support mechanism 6 includes a support base rod 11, a support top rod 9 is slidably inserted into the top of the support base rod 11, and a positioning screw 10 is inserted into the outer side of the support base rod 11. The surface of the support top rod 9 is provided with several positioning holes so that the positioning screw 10 can pass through and be positioned. The installation height of the entire cleaning device can be adjusted by setting the extension height of the support top rod 9, making it more versatile. Please see Figure 3 The two sides of the reciprocating screw 17 are movably connected to the fixed housing 3 through bearings. The reciprocating screw 17 can be made of 45 steel (12mm in diameter and 5mm in lead) and is treated with anti-rust. The left side of the reciprocating screw 17 passes through the fixed housing 3 and is fixedly connected to the drive motor 12 through a coupling. Please see Figure 1 and Figure 3 A sliding opening is provided on the front side of the inner cavity of the fixed shell 3. A spray pipe assembly 8 is installed on the top of the fixed shell 3 by bolts. The spray pipe assembly 8 can be connected to the pipeline of the external cleaning liquid delivery mechanism so that cleaning liquid can be sprayed during the scraping process to clean the stains with strong adhesion. Please see Figure 1 The left and right sides of the rear side of the frame 7 are fixed to the fixed shell 3 and the box 4 respectively by riveting. The top of the left side of the inner cavity of the frame 7 is fixedly connected to the protective cover plate 5. By setting the protective cover plate 5, the scraper assembly 15 can be protected after it is reset. Please see Figure 3 The output terminal of the micro PLC controller 13 is electrically connected to the drive motor 12, and the output terminal of the timer module 14 is electrically connected to the micro PLC controller 13.

[0019] In use, this device is powered by an external power source. First, the timer module 14 is set (e.g., start at 9:00 AM daily). After the predetermined time is reached, the timer module 14 transmits a trigger signal to the micro PLC controller 13. The micro PLC controller 13, which is pre-programmed, receives the signal and controls the drive motor 12 to work for two minutes. The drive motor 12 drives the reciprocating screw 17 to rotate, causing the mounting slider 26 to move back and forth. The rubber scraper 24 then moves left and right on the surface of the photovoltaic panel assembly 1 to scrape away dust. After the preset time is reached, the drive motor 12 stops working, causing the mounting slider 26 to move to the initial position on the left. This achieves automatic cleaning and has a simple structure, small size, and low maintenance cost. When it is necessary to replace the connecting push plate 21, the two front and rear clips 25 are pulled out to the right from the front and rear snap-fit ​​housings 20 respectively. Then, the scraper assembly 15 is pulled upward to disengage the snap-fit ​​blocks 16 at both ends from the snap-fit ​​housings 20. After removing the scraper assembly 15, the rubber scraper 24 can be replaced. This operation is more convenient and labor-saving, improving the efficiency of later maintenance.

[0020] In summary, this wiper-type photovoltaic cleaning device, through the coordinated use of photovoltaic panel assembly 1, fixing shell 3, housing 4, frame 7, drive motor 12, micro PLC controller 13, timer module 14, wiper assembly 15, snap-fit ​​plug 16, reciprocating screw 17, snap-fit ​​shell 20 and buckle 25, solves the problems of complex structure, large size, time-consuming and laborious disassembly and replacement, high daily maintenance cost, need for manual operation, and inability to achieve automatic cleaning.

Claims

1. A wiper-type photovoltaic cleaning device, comprising a photovoltaic panel assembly (1), characterized in that: The photovoltaic panel assembly (1) has four corners at the bottom with fixed posts (2) installed by bolts. The outside of the fixed posts (2) is equipped with a support mechanism (6) installed by bolts. The top of the support mechanism (6) is equipped with a fixed shell (3) and a frame (7) installed by bolts. The left side of the fixed shell (3) is welded with a box (4). The inner cavity of the box (4) is equipped with a drive motor (12), a micro PLC controller (13) and a timer module (14) installed by bolts. The front and rear sides of the inner cavity of the fixed shell (3) are equipped with a guide slide rod (18) and a reciprocating screw (17). The surface of the reciprocating screw (17) and the guide slide rod (18) is movably fitted with a mounting slider (26). The front side of the inner cavity of the frame (7) is provided with a guide groove (19). The inner cavity of the guide groove (19) and the front side of the mounting slider (26) are both equipped with snap-fit ​​shells (20). The front and rear snap-fit ​​shells (20) are equipped with a scraper assembly (15).

2. The wiper-type photovoltaic cleaning device according to claim 1, characterized in that: The scraper assembly (15) includes a connecting shell (22), a support spring (23) is fixedly connected to the top of the inner cavity of the connecting shell (22), a connecting push plate (21) is fixedly connected to the bottom of the support spring (23), and a rubber scraper strip (24) is installed through the connecting shell (22) and bolted to the bottom of the connecting push plate (21).

3. The wiper-type photovoltaic cleaning device according to claim 1, characterized in that: The scraper assembly (15) has snap-fit ​​blocks (16) welded on both the front and rear sides, and snap-fit ​​fasteners (25) are installed on the outer side of the snap-fit ​​shell (20).

4. A wiper-type photovoltaic cleaning device according to claim 1, characterized in that: The support mechanism (6) includes a support base rod (11), a support top rod (9) is slidably inserted into the top of the support base rod (11), and a positioning screw (10) is inserted into the outer side of the support base rod (11).

5. A wiper-type photovoltaic cleaning device according to claim 1, characterized in that: The two sides of the reciprocating screw (17) are movably connected to the fixed shell (3) through bearings. The left side of the reciprocating screw (17) passes through the fixed shell (3) and is fixedly connected to the drive motor (12) through a coupling.

6. A wiper-type photovoltaic cleaning device according to claim 1, characterized in that: A sliding opening is provided on the front side of the inner cavity of the fixed shell (3), and a spray pipe assembly (8) is installed on the top of the fixed shell (3) by bolts.

7. A wiper-type photovoltaic cleaning device according to claim 1, characterized in that: The left and right sides of the rear side of the frame (7) are fixed to the fixed shell (3) and the box body (4) respectively by riveting. The top of the left side of the inner cavity of the frame (7) is fixedly connected to a protective cover plate (5).

8. A wiper-type photovoltaic cleaning device according to claim 1, characterized in that: The output terminal of the micro PLC controller (13) is electrically connected to the drive motor (12), and the output terminal of the timer module (14) is electrically connected to the micro PLC controller (13).

Images