Ash deposition prevention device for photovoltaic cell panel

Abstract

The utility model discloses a dust deposition prevention device for a photovoltaic cell panel, and relates to the technical field of photovoltaic cell panel maintenance. The problem that an existing photovoltaic cell panel collects dust through multiple push-and-pull actions, and the cleaning frequency is low is solved. A photovoltaic panel installation filter screen is detachably arranged on a supporting plate, a dust collection box is arranged on the supporting plate relative to the lower portion of the photovoltaic panel installation filter screen in a drawing mode, an installation plate is arranged on the photovoltaic panel installation filter screen and connected with a photovoltaic panel, and a cleaning mechanism is arranged on the supporting plate in a sliding mode and located above the photovoltaic panel. Dust on the photovoltaic panel is removed through the cleaning brush and the water feeder communicated with the cleaning brush, and the dust directly enters the dust collecting box through holes in the photovoltaic panel mounting filter screen and is collected in a centralized mode. The dust collection device is simple in structure and efficient in dust collection, dust is prevented from being scattered in the surrounding environment, and the power generation efficiency of the photovoltaic cell panel is improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic panel maintenance technology, specifically to a device for preventing dust accumulation on photovoltaic panels. Background Technology

[0002] A photovoltaic (PV) panel, also known as a solar panel, is a device that converts solar energy into electrical energy. It typically consists of a series of photovoltaic cells and is widely used in solar power systems to capture and convert sunlight into electricity. PV panels are usually installed at an angle to receive more sunlight; however, after long-term outdoor operation, dust accumulates on their surface, especially in windy and sandy areas where dust accumulation is more severe. This not only affects the power generation efficiency of the PV panel but also increases maintenance costs.

[0003] Reference document CN2140177249U discloses a photovoltaic panel for information monitoring, relating to the field of photovoltaic power generation technology. After prolonged use, dust accumulates on the surface of the photovoltaic panel, and some dust enters the first and second collection tanks. At this time, a cleaning mechanism slides along its length, brushing the dust on the photovoltaic panel into either the first or second collection tank. The sliding of the cleaning mechanism also causes all the first push rods to slide. Since the depth of the first collection tank is greater than that of the second collection tank, the first push rods push the dust from the second collection tank into the first collection tank. Next, the sliding rods slide back and forth along their width, causing all the second push rods to slide, pushing the dust to the dust inlets at both ends of the width direction, and then into the drawer through the dust inlets, thus conveniently and effortlessly cleaning the dust on the photovoltaic panel. However, the following technical problems still exist:

[0004] Existing methods for cleaning dust from photovoltaic panels rely on mechanical structures such as sliding rods and push rods. Dust is pushed from the panel surface to a collection tray through repeated pushing and pulling motions, and then enters the drawer through the dust inlet. While effective, this design suffers from drawbacks with prolonged use, infrequent cleaning, or rain. Accumulated dust in the collection tray, mixed with rainwater, can become trapped, preventing the sliding rods and push rods from moving. During cleaning, the dust pushed by these rods accumulates, reaching the same height as the photovoltaic panel, potentially causing secondary pollution. Furthermore, the dust inlet is prone to clogging, preventing dust from entering the drawer for proper collection. In addition, while the cleaning method is simple, the cleaning effect is poor. Utility Model Content

[0005] To address the aforementioned problems, this utility model aims to provide a device for preventing dust accumulation on photovoltaic panels. By simplifying the structure and optimizing the dust collection path, it achieves efficient cleaning of dust on the surface of photovoltaic panels. At the same time, it optimizes the cleaning mechanism and switches cleaning modes according to actual conditions, greatly improving the cleaning effect and thus increasing the power generation efficiency of photovoltaic panels.

[0006] The main idea of ​​the technical solution adopted by this utility model is as follows: a photovoltaic panel mounting filter is detachably installed on the support plate, a dust collection box is pulled down on the support plate relative to the photovoltaic panel mounting filter, an mounting plate is provided on the photovoltaic panel mounting filter, the mounting plate is connected to the photovoltaic panel, a cleaning mechanism is slidably installed on the support plate, the cleaning mechanism is above the photovoltaic panel, sweeps the dust off the photovoltaic panel, and the dust enters directly into the dust collection box through the holes in the photovoltaic panel mounting filter to collect the dust.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A device for preventing dust accumulation on photovoltaic panels includes a support plate, a photovoltaic panel, and a dust collection box.

[0009] The support plate is detachably connected to an integrated filter structure;

[0010] The integrated filter structure is equipped with a dust collection box at the bottom, and the dust collection box is slidably connected to the support plate.

[0011] The photovoltaic panel is mounted on the integrated filtration structure;

[0012] The support plate is equipped with a cleaning mechanism for cleaning and washing the photovoltaic panel and the integrated filter structure.

[0013] Furthermore, the above-described integrated filter structure includes a photovoltaic panel-mounted filter screen.

[0014] The photovoltaic panel mounting filter has a mounting plate for mounting the photovoltaic panel.

[0015] Furthermore, the support plate is provided with a slot and a mesh groove, as described above.

[0016] The chute is matched with the ash collection box;

[0017] The mesh groove is located above the extraction groove and is used to install the photovoltaic panel installation filter.

[0018] Furthermore, according to the above scheme, the cleaning mechanism includes a cleaning brush and a water supply device connected to the cleaning brush.

[0019] Further, according to the above scheme, the cleaning brush includes a sliding plate with multiple water spray holes evenly opened near the photovoltaic panel surface. A water inlet groove is opened at the end of the sliding plate perpendicular to the water spray holes, and the water inlet groove is connected to the multiple water spray holes.

[0020] Furthermore, according to the above scheme, the water supply device includes a water pump, a water pipe, and a water tank. One end of the water pipe is connected to the water pump, and the other end is connected to the water tank.

[0021] The beneficial effects of this utility model are:

[0022] 1. Combination of automatic and manual cleaning: Through airflow and slight vibration caused by wind and temperature differences, the cleaning mechanism can automatically slide slightly in the trapezoidal groove to achieve initial cleaning of the photovoltaic panel surface. At the same time, the manual sliding cleaning mechanism can achieve more thorough cleaning, ensuring that the dust on the photovoltaic panel surface is effectively removed.

[0023] 2. High-efficiency dust collection: The design of perforated photovoltaic panels with filters and a pull-out dust collection box allows the dust brushed off by the cleaning mechanism to fall directly into the dust collection box, preventing dust from scattering, improving dust collection efficiency, and reducing cleaning difficulty.

[0024] 3. Sturdy structure and easy maintenance: The photovoltaic panel mounting screen is fastened to the mesh groove of the support plate by countersunk screws, ensuring the stability of the photovoltaic panel mounting screen without affecting the aesthetics. The connection design between the mounting plate and the photovoltaic panel makes the photovoltaic panel installation stable and easy to disassemble and maintain.

[0025] 4. Sliding path optimization: The trapezoidal groove has a small external size and a large internal size, which greatly reduces the entry of dust and avoids the problem of the cleaning mechanism being unable to continue sliding due to dust accumulation. It also reduces sliding resistance, allowing the trapezoidal slider of the cleaning mechanism to slide smoothly inside, thus improving the sliding efficiency of the cleaning mechanism.

[0026] 5. Improved cleaning effect: This utility model can be used to clean with a cleaning brush or a combination of cleaning brush and running water, which significantly improves the cleaning effect and increases the power generation efficiency of photovoltaic panels. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.

[0028] Figure 1 This is a schematic diagram of the structure of a photovoltaic panel dust prevention device according to the present invention;

[0029] Figure 2 This is a diagram showing the usage status of a photovoltaic panel dust prevention device according to this utility model;

[0030] Figure 3 This is an exploded view of a photovoltaic panel dust prevention device according to the present invention;

[0031] Figure 4 This is a schematic diagram of the support plate structure of this utility model;

[0032] Figure 5 for Figure 4 Enlarged view of point A;

[0033] Figure 6 This is a schematic diagram of the mounting plate and photovoltaic panel filter structure of this utility model;

[0034] Figure 7 This is a schematic diagram of the cleaning mechanism structure of this utility model;

[0035] Figure 8 This is a schematic diagram of the water supply device structure of this utility model;

[0036] Figure 9 This is a cross-sectional view of the sliding plate of this utility model;

[0037] In the diagram: 1. Support plate, 101. Groove, 102. Mesh trough, 103. Countersunk hole, 104. Trapezoidal groove, 2. Photovoltaic panel, 3. Mounting plate, 4. Cleaning mechanism, 401. Brush body, 402. Spring, 403. Sliding plate, 404. Trapezoidal slider, 405. Water spray hole, 406. Water inlet, 407. Water pump, 408. Water pipe, 409. Water bucket, 5. Ash collection box, 501. Handle, 6. Photovoltaic panel mounting filter, 7. Countersunk screw. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0040] The inventors discovered in practice that existing methods for cleaning dust from photovoltaic panels rely on mechanical structures such as sliding rods and push rods. Dust is pushed from the photovoltaic panel surface to the collection groove through repeated pushing and pulling motions, and then enters the drawer through the dust inlet. While this design is effective, prolonged use, infrequent cleaning, or rain can lead to dust accumulation in the collection groove. This can cause the sliding rods and push rods to become immobile, and the dust pushed by the rods during cleaning can accumulate and become thicker, potentially causing secondary pollution when it reaches the same height as the photovoltaic panel. Furthermore, the dust inlet is easily blocked, preventing dust from entering the drawer for centralized collection. In addition, the cleaning method is simple but the cleaning effect is poor.

[0041] Based on the above findings, this application proposes a photovoltaic panel dust prevention device. By simplifying the structure and optimizing the dust collection path, it achieves efficient cleaning of dust on the surface of the photovoltaic panel. At the same time, it optimizes the cleaning mechanism and switches the cleaning mode according to the actual situation, which greatly improves the cleaning effect and thus improves the power generation efficiency of the photovoltaic panel. Example

[0042] See Figures 1-9 This application discloses a photovoltaic panel dust prevention device, including a support plate 1, a photovoltaic panel 2, a mounting plate 3, a cleaning mechanism 4, a dust collection box 5, and a photovoltaic panel mounting filter 6. The photovoltaic panel mounting filter 6 is detachably mounted on the support plate 1. The dust collection box 5 is pulled down from the support plate 1 relative to the photovoltaic panel mounting filter 6. The mounting plate 3 is mounted on the photovoltaic panel mounting filter 6 and connected to the photovoltaic panel 2. The cleaning mechanism 4 is slidably mounted on the support plate 1, positioned above the photovoltaic panel 2, and sweeps dust off the photovoltaic panel 2, allowing it to directly enter the dust collection box 5 through holes in the photovoltaic panel mounting filter 6 for collection.

[0043] Specifically, the support plate 1 is a rectangular plate with a slot 101 at its bottom for installing a dust collection box 5. The dust collection box 5 facilitates the collection and centralized treatment of dust falling from the photovoltaic panel. Above the slot 101 of the support plate 1, a mesh groove 102 is provided for installing the photovoltaic panel mounting filter 6. Multiple countersunk holes 103 are evenly distributed on the support plate 1. The countersunk holes 103 penetrate the mesh groove 102 from the surface of the support plate and have internal threads. Countersunk screws 7 are installed in the countersunk holes 103 to fasten the photovoltaic panel mounting filter 6 into the mesh groove 102 of the support plate 1, ensuring the stability of the photovoltaic panel mounting filter 6 without affecting the aesthetics, and also ensuring the stable installation of the photovoltaic panel 2. Trapezoidal grooves 104 are symmetrically provided on both side walls of the support plate 1. The design of the trapezoidal grooves 104 facilitates the installation and guides the sliding of the cleaning mechanism 4. At the same time, due to the small external size and large internal size of the trapezoidal structure, dust is difficult to enter, preventing the cleaning mechanism 4 from being unable to continue sliding. It also makes it easy to remove and replace the cleaning mechanism 4.

[0044] The photovoltaic panel mounting filter 6 is preferably made of weather-resistant stainless steel, such as stainless steel 304, which has good corrosion resistance and strength. The surface has evenly distributed holes with a diameter of 1cm, which can effectively collect dust. Multiple mounting plates 3 are evenly connected to the photovoltaic panel mounting filter 6 by welding or bolts. The mounting plates 3 can be made of lightweight high-strength aluminum alloy, such as grade 5052-H32, and the surface is anodized to improve corrosion resistance and aesthetics. Each mounting plate 3 is connected to a photovoltaic panel 2. The photovoltaic panel 2 is connected to the mounting plate 3 by brackets or direct bolts to ensure the stable installation of the photovoltaic panel 2 and facilitate disassembly and maintenance.

[0045] In addition, the cleaning mechanism 4 includes a cleaning brush and a water supply connected to the cleaning brush, allowing operators to choose between sweeping or running water cleaning based on actual conditions. The cleaning brush includes a brush body 401, a spring 402, and a sliding plate 403. The brush body 401 is made of a soft and wear-resistant material, such as wear-resistant nylon fiber, with moderate hardness, so that it will not scratch the surface of the photovoltaic panel when gently wiping it. The spring 402 connects the brush body 401 and the sliding plate 403, providing continuous pressure to the brush body 401 to ensure close contact between the brush body 401 and the photovoltaic panel 2. The sliding plate 403 has outwardly extending trapezoidal sliders 404 on both sides. The trapezoidal sliders 404 cooperate with the trapezoidal grooves 104, allowing the cleaning mechanism 4 to slide smoothly on the support plate 1. At the same time, the trapezoidal sliders will not slide out of the trapezoidal grooves 104. The cleaning mechanism 4 will slide back and forth in the trapezoidal grooves 104 to brush away the dust on the surface of the photovoltaic panel 2. The dust falls into the dust collection box 5 through the photovoltaic panel mounting filter 6.

[0046] It is worth noting that the sliding plate 403 has multiple water spray holes 405 evenly distributed near the two sides of the photovoltaic panel. A water inlet groove 406 is provided at the end of the sliding plate 403 perpendicular to the water spray holes 405. The water inlet groove 406 is connected to the multiple water spray holes 405 to provide conditions for water cleaning.

[0047] The water supply device includes a water pump 407, a water pipe 408, and a water tank 409. One end of the water pipe 408 is connected to the water pump 407, and the other end is connected to the water tank 409. In use, the water pump 407 pumps water from the water tank 409 to the water inlet 406 through the water pipe 408. The water then flows through the water inlet 406 to multiple spray holes 405, thereby spraying water onto the surfaces of the photovoltaic panel 2 and the photovoltaic panel mounting filter 6.

[0048] Secondly, based on the usage environment, the ash collection box 5 is made of lightweight and corrosion-resistant materials, such as high-density polyethylene (HDPE). The capacity of the ash collection box 5 is designed to be 5-10 liters, which can accommodate dust accumulation over a relatively long period of time. A handle 501 is provided on the outer wall of the ash collection box 5, which makes it easy for operators to pull out the support plate 1 of the ash collection box 5.

[0049] Installation process: First, place the photovoltaic panel mounting filter 6 in the groove 102 and fix it in place by passing countersunk screws 7 through the countersunk holes 103. Next, slide the trapezoidal slider 404 of the cleaning mechanism 4 into the trapezoidal groove 104 until it reaches the bottom of the support plate 1. Then, install the photovoltaic panels 2 one by one on the mounting plate 3 on the photovoltaic panel mounting filter 6, ensuring that all photovoltaic panels 2 are neatly arranged and firmly connected. Finally, push the dust collection box 5 into the slot 101 to complete the installation of the entire device.

[0050] One usage process of this embodiment is as follows:

[0051] Airflow caused by wind or temperature differences, as well as possible slight vibrations, will cause the cleaning mechanism 4 to slide slightly within the trapezoidal groove 104. The brush body 401 will lightly touch the surface of the photovoltaic panel 2, achieving an automatic cleaning effect. For further cleaning, the sliding plate 403 can be manually slid. Using the pressure provided by the spring 402, the brush body 401 will make close contact with the surface of the photovoltaic panel 2. The nylon bristles of the brush body 401 will brush up the dust on the surface of the photovoltaic panel 2, which will fall into the dust collection box 5 below through the photovoltaic panel filter 6. That is, the dust is brushed into the dust collection box 5, thereby achieving deep cleaning. When the dust in the dust collection box 5 accumulates to a certain amount, the operator needs to clean the dust collection box 5 regularly. The operator holds the handle 501 on the outside of the dust collection box 5 and gently pulls the dust collection box 5 outward. After the dust collection box 5 is completely pulled out, the operator can pour the dust in the dust collection box 5 into a garbage bag or other collection container. After cleaning, the operator pushes the dust collection box 5 back to its original position to ensure that the device continues to work normally. For a more thorough cleaning, start the water pump 407. The water pump 407 draws water from the water tank 409 into the water inlet 406 through the water pipe 408. The water then flows through the water inlet 406 to multiple spray holes 405, spraying water onto the surface of the photovoltaic panel 2 and the photovoltaic panel mounting filter 6. At the same time, the sliding plate 403 moves the brush body 401 to clean synchronously, thus cleaning the photovoltaic panel 2 and the photovoltaic panel mounting filter 6 more thoroughly.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dust accumulation prevention device for a photovoltaic panel, comprising a support plate (1), a photovoltaic panel (2) and a dust collection box (5), characterized in that, a filter-integrated structure is detachably connected to the support plate (1); the dust collection box (5) is arranged below the filter-integrated structure and is slidably connected to the support plate (1); the photovoltaic panel (2) is installed on the filter-integrated structure; a cleaning mechanism for cleaning and washing the photovoltaic panel (2) and the filter-integrated structure is slidably arranged on the support plate (1).

2. A device for preventing dust accumulation on a photovoltaic panel according to claim 1, characterized in that: the filter-integrated structure comprises a photovoltaic panel mounting filter screen (6); the photovoltaic panel mounting filter screen (6) is provided with a mounting plate (3) for mounting the photovoltaic panel (2).

3. A device for preventing dust accumulation on a photovoltaic panel according to claim 1, characterized in that: a suction groove (101) and a mesh groove (102) are formed in the support plate (1); the suction groove (101) is matched with the dust collection box (5); the mesh groove (102) is located above the suction groove (101) and is used for mounting the photovoltaic panel mounting filter screen (6).

4. A device for preventing dust accumulation on a photovoltaic panel according to claim 1, characterized in that: the cleaning mechanism comprises a cleaning brush and a water feeder connected with the cleaning brush.

5. A device for preventing dust accumulation on a photovoltaic panel according to claim 4, characterized in that: the cleaning brush comprises a sliding plate (403), a plurality of water injection holes (405) are uniformly formed in the sliding plate (403) close to the surface of the photovoltaic panel (2), a water inlet groove (406) is formed in one end of the sliding plate (403) perpendicular to the water injection holes (405), and the water inlet groove (406) is communicated with the plurality of water injection holes (405).

6. A device for preventing dust accumulation on a photovoltaic panel according to claim 4, characterized in that: the water feeder comprises a water pump (407), a water suction pipe (408) and a water bucket (409), one end of the water suction pipe (408) is connected with the water pump (407), and the other end of the water suction pipe (408) is connected with the water bucket (409).

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