Photovoltaic module cleaning and maintenance apparatus
By introducing cleaning and filtration mechanisms into photovoltaic module cleaning equipment, the problems of cleaning wastewater pollution and waste have been solved, and effective filtration and recycling of wastewater have been achieved, improving cleaning efficiency and environmental friendliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU LUNENG ENERGY TECH CO LTD
- Filing Date
- 2025-03-21
- Publication Date
- 2026-06-16
AI Technical Summary
Existing photovoltaic module cleaning equipment generates a large amount of cleaning wastewater during large-scale cleaning, leading to pollution and water waste.
A photovoltaic module cleaning and maintenance device was designed, which includes a cleaning mechanism and a filtration mechanism. The photovoltaic panel is cleaned by a brush roller and wastewater is filtered simultaneously. The device uses coarse and fine filter layers for step-by-step filtration and the cleaning water is recycled.
It achieves effective filtration and recycling of wastewater, avoids pollution and waste of resources, and improves cleaning efficiency and environmental friendliness.
Smart Images

Figure CN224367777U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic module maintenance technology, specifically a photovoltaic module cleaning and maintenance device. Background Technology
[0002] As a crucial component of solar photovoltaic power generation, the output power of photovoltaic modules is directly affected by the intensity of sunlight. When sand, dust, snow, and other contaminants fall onto the surface of photovoltaic modules, they reduce light transmittance, leading to a significant decrease in photoelectric conversion efficiency. Therefore, regular cleaning of the photovoltaic panels is necessary.
[0003] Chinese Patent CN221227484 U discloses an automatic cleaning device for photovoltaic modules, including a support frame. A photovoltaic panel is supported on the top of the support frame. Screw assemblies are installed on both sides of the support frame. Racks are installed on both the left and right sides of the top surface of the photovoltaic panel, and gears are meshed with the racks. The gears are installed at both ends of a brush roller. A moving assembly includes a screw nut and a clamping block. The screw nut is threadedly connected to the screw. A vertical frame and a controller are connected to the rear end of the support frame. A main water pipe is installed on the vertical frame, and multiple water spray heads are installed on the main water pipe. The water sprayed from the spray heads wets the brush roller, enabling the brush roller, which moves and rotates along the top surface of the photovoltaic panel under the drive of a geared motor, to effectively and automatically clean and remove dust from the surface of the photovoltaic panel.
[0004] However, the above-mentioned publicly available solutions have the following shortcomings: when large-scale photovoltaic panels need to be cleaned and maintained, a large amount of cleaning wastewater will be generated. Allowing the wastewater to flow will not only cause pollution around the photovoltaic power generation equipment and increase the subsequent maintenance work, but also waste water resources. Utility Model Content
[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a photovoltaic module cleaning and maintenance device.
[0006] The technical solution of this utility model is as follows: A photovoltaic module cleaning and maintenance device includes a mounting frame with multiple photovoltaic panels inclined at its top; a cleaning mechanism, which is adjustablely mounted on the mounting frame; a filtration mechanism consisting of a movable seat, a brush roller, and a spraying component; a driving component on the movable seat, which is driven by the driving component to move horizontally along the mounting frame; a brush roller driven by a motor on the movable seat, which contacts the photovoltaic panels; a spraying component on the movable seat and located on one side of the brush roller; a three-way pipe installed at the input end of the spraying component, which is located at the top of the movable seat; and solenoid valves installed at both input ends of the three-way pipe; and a filtration mechanism consisting of a filter box slidably connected to the mounting frame, a filter component inside the filter box, and a liquid pump installed on the side wall of the filter box; a support arm installed between the filter box and the movable seat; a filter component consisting of a coarse filter layer and a fine filter layer, both of which abut against the door of the filter box; an input end of the liquid pump connected to the bottom of the filter box; and an output end of the liquid pump connected to one input end of the three-way pipe via a water pipe.
[0007] Preferably, the drive assembly includes a connecting seat mounted at one end of the mounting frame; a guide groove disposed at the other end of the mounting frame and opposite to the connecting seat; a first slider mounted at one end of the movable seat, the first slider being slidably connected to the guide groove; and multiple sets of rollers, each set of rollers being mounted in a mounting cavity at one end of the movable seat, and the rollers being driven to rotate by a motor mounted on the movable seat, with the bottom of the outer circumferential surface of the multiple sets of rollers being tumbledly connected to the connecting seat.
[0008] Preferably, one end of both the guide groove and the connecting seat is an open end, and a limit plate can be detachably installed on the open end of the connecting seat by bolts.
[0009] Preferably, the mounting bracket has a sliding groove, and the bottom of the filter box is provided with a second slider, which is slidably connected to the sliding groove.
[0010] Preferably, the coarse filter layer consists of an installation frame and a non-woven fabric that can be detachably installed on the installation frame, and the fine filter layer consists of an installation frame, a filter screen that can be detachably installed around the installation frame, and activated carbon particles disposed inside multiple sets of filter screens; the inner wall of the filter box is provided with two sets of limiting seats from top to bottom, and the coarse filter layer and the fine filter layer are slidably connected to the corresponding limiting seats respectively.
[0011] Preferably, a material inlet cover is provided at the top of the filter box, and the material inlet cover is located below the bottom of the movable seat.
[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: the cleaning mechanism facilitates horizontal displacement along the photovoltaic panel and thoroughly cleans it. While the cleaning mechanism moves, it can drive the filtration mechanism to move synchronously, thereby receiving the wastewater generated during cleaning and filtering it step by step, avoiding wastewater leakage and pollution, avoiding increased maintenance workload, and the filtered water can be recycled and reused to continue cleaning the photovoltaic panel, avoiding resource waste. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram showing the connection between the cleaning mechanism and the photovoltaic panel of this utility model;
[0015] Figure 3 This is a schematic diagram of the installation method of the filter mechanism of this utility model;
[0016] Figure 4 This is a schematic diagram of the internal structure of the filter box of this utility model.
[0017] Reference numerals in the attached drawings: 1. Mounting bracket; 101. Connecting seat; 102. Guide groove; 103. Slide groove; 104. Limiting plate; 2. Photovoltaic panel; 3. Movable seat; 301. First slider; 302. Mounting cavity; 303. Roller; 4. Brush roller; 5. T-pipe; 6. Support arm; 601. Guide ring; 7. Filter box; 701. Material inlet cover; 702. Drain valve; 703. Liquid pump; 8. Limiting seat; 801. Coarse filter layer; 802. Fine filter layer. Detailed Implementation
[0018] Example 1
[0019] like Figures 1 to 4As shown, this utility model proposes a photovoltaic module cleaning and maintenance device, including a mounting frame 1, a cleaning mechanism, and a filtering mechanism. Multiple photovoltaic panels 2 are inclinedly arranged at the top of the mounting frame 1. The cleaning mechanism is adjustablely mounted on the mounting frame 1. The filtering mechanism consists of a movable base 3, a brush roller 4, and a spraying component. A driving component is provided on the movable base 3, which is driven to move horizontally along the mounting frame 1. The brush roller 4 is driven to rotate by a motor mounted on the movable base 3, and the brush roller 4 contacts the photovoltaic panel 2. The spraying component is mounted on the movable base 3 and located on one side of the brush roller 4. Both the brush roller 4 and the spraying component are existing technologies; their structures and principles will not be described in detail here. Those skilled in the art will clearly understand the principle. The spraying component's output... A three-way pipe 5 is installed at the inlet end, and the three-way pipe 5 is located at the top of the movable seat 3. Both input ends of the three-way pipe 5 are equipped with solenoid valves. The filtration mechanism consists of a filter box 7 with a sliding connection mounting frame 1, a filter assembly installed inside the filter box 7, and a liquid pump 703 installed on the side wall of the filter box 7. A support arm 6 is installed between the filter box 7 and the movable seat 3. A guide ring 601 is provided on the support arm 6 for water pipe wiring installed at the output end of the liquid pump 703. The filter assembly consists of a coarse filter layer 801 and a fine filter layer 802. Both the coarse filter layer 801 and the fine filter layer 802 abut against the door on the filter box 7. The input end of the liquid pump 703 is connected to the bottom end inside the filter box 7, and the output end of the liquid pump 703 is connected to one input end of the three-way pipe 5 through a water pipe.
[0020] Furthermore, the drive assembly includes a connecting seat 101, a guide groove 102, and rollers 303; the connecting seat 101 is installed at one end of the mounting frame 1; the guide groove 102 is located at the other end of the mounting frame 1 and is opposite to the connecting seat 101; a first slider 301 is installed at one end of the movable seat 3, and the first slider 301 is slidably connected to the guide groove 102; multiple sets of rollers 303 are provided, and multiple sets of rollers 303 are installed in the mounting cavity 302 at one end of the movable seat 3, and the rollers 303 are driven to rotate by a motor installed on the movable seat 3, and the bottom of the outer peripheral surface of the multiple sets of rollers 303 is in rolling connection with the connecting seat 101.
[0021] Furthermore, both the guide groove 102 and the connecting seat 101 are open ends. The open end of the connecting seat 101 is detachably mounted with a limiting plate 104 by bolts. The first slider 301 on the movable seat 3 is slidably pushed in along the guide groove 102, and at the same time, multiple sets of rollers 303 are slidably pushed in along the connecting seat 101. The limiting plate 104 is then connected to the open end of the connecting seat 101 by bolts, thereby limiting the movable seat 3 between the connecting seat 101 and the guide groove 102. This ensures that the movable seat 3 can only move and adjust horizontally along the top of the mounting frame 1 under the drive of the drive assembly, without falling off and causing damage, thus improving safety in use.
[0022] Furthermore, a sliding groove 103 is provided on the mounting frame 1, and a second slider is provided at the bottom of the filter box 7. The second slider is slidably connected to the sliding groove 103, so that the filter box 7 can move stably along the mounting frame 1 under the drive of the moving seat 3, which facilitates the collection of wastewater generated by the cleaning mechanism cleaning the photovoltaic panel 2.
[0023] Furthermore, a material inlet cover 701 is provided at the top of the filter box 7. The material inlet cover 701 is located below the bottom of the movable seat 3, which facilitates the guidance of the wastewater generated by the cleaning mechanism into the filter box 7, avoiding leakage that could lead to pollution and waste.
[0024] In this embodiment, one set of input terminals of the three-way pipe 5 is connected to an external water supply mechanism, and the other set of input terminals is connected to a liquid pump 703. The solenoid valve between the water supply mechanism and the three-way pipe 5 is opened, and the controller starts the motor to drive the roller 303 to rotate. Under the guidance of the first slider 301, the moving seat 3 is easily driven to reciprocate along the horizontal direction of the mounting frame 1. The motor drives the brush roller 4 to rotate, and simultaneously the external water supply mechanism supplies water to the three-way pipe 5. The brush roller 4 and the spraying assembly thoroughly clean the multiple photovoltaic panels 2. Because the multiple photovoltaic panels 2 are tilted relative to the mounting frame 1, the cleaning... The generated wastewater flows downwards, and when the movable seat 3 moves along the mounting frame 1, the support arm 6 drives the filter box 7 to slide synchronously along the slide groove 103. The wastewater is guided into the filter box 7 through the feed cover 701 to avoid pollution to the surrounding environment. The wastewater is filtered through the coarse filter layer 801 and the fine filter layer 802. The filtered water flows into the bottom of the filter box 7. The liquid pump 703 can pump the water out and transport it to the three-way pipe 5 to the spraying mechanism for recycling, avoiding waste of water resources. Excess water in the filter box 7 can be discharged through the drain valve 702 on the side wall of the filter box 7.
[0025] Example 2
[0026] like Figure 4 As shown, the photovoltaic module cleaning and maintenance equipment proposed in this utility model, compared with Embodiment 1, has a coarse filter layer 801 composed of an installation frame and a non-woven fabric detachably installed on the installation frame, and a fine filter layer 802 composed of an installation frame, a filter screen detachably installed around the installation frame, and activated carbon particles disposed inside multiple sets of filter screens; the inner wall of the filter box 7 is provided with two sets of limiting seats 8 from top to bottom, and the coarse filter layer 801 and the fine filter layer 802 are slidably connected to the corresponding limiting seats 8 respectively.
[0027] In this embodiment, the cleaning wastewater can be filtered step by step through non-woven fabric, filter screen and activated carbon particles, which improves the cleanliness of the wastewater, avoids secondary pollution to photovoltaic panel 2, improves the wastewater recycling rate, and allows the coarse filter layer 801 and fine filter layer 802 to be slid out from the limiting seat 8 for replacement by opening the door, which is convenient to use.
[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A photovoltaic module cleaning and maintenance device, characterized in that, include Mounting frame (1), with multiple photovoltaic panels (2) installed at its top at an angle; The cleaning mechanism is adjustablely mounted on the mounting frame (1). The filtration mechanism consists of a movable seat (3), a brush roller (4), and a spraying assembly. A drive assembly is provided on the movable seat (3). The movable seat (3) is driven by the drive assembly to move horizontally along the mounting frame (1). The brush roller (4) is driven to rotate by a motor provided on the movable seat (3). The brush roller (4) is in contact with the photovoltaic panel (2). The spraying assembly is provided on the movable seat (3) and located on one side of the brush roller (4). A three-way pipe (5) is installed at the input end of the spraying assembly. The three-way pipe (5) is located at the top of the movable seat (3). Solenoid valves are provided at both input ends of the three-way pipe (5). The filter mechanism consists of a filter box (7) with a sliding connection mounting bracket (1), a filter assembly set inside the filter box (7), and a liquid pump (703) installed on the side wall of the filter box (7). A support arm (6) is installed between the filter box (7) and the movable seat (3). The filter assembly consists of a coarse filter layer (801) and a fine filter layer (802). Both the coarse filter layer (801) and the fine filter layer (802) abut against the door on the filter box (7). The input end of the liquid pump (703) is connected to the bottom of the filter box (7). The output end of the liquid pump (703) is connected to one input end of a three-way pipe (5) through a water pipe.
2. The photovoltaic module cleaning and maintenance equipment according to claim 1, characterized in that, Driver components include A connecting base (101) is installed at one end of the mounting bracket (1); A guide groove (102) is provided at the other end of the mounting bracket (1) and opposite to the connecting seat (101). A first slider (301) is installed at one end of the movable seat (3), and the first slider (301) is slidably connected to the guide groove (102). And rollers (303), which are provided in multiple sets. All sets of rollers (303) are installed in the mounting cavity (302) at one end of the movable seat (3), and the rollers (303) are driven to rotate by a motor installed on the movable seat (3). The bottom of the outer circumference of the multiple sets of rollers (303) is rolledly connected to the connecting seat (101).
3. The photovoltaic module cleaning and maintenance equipment according to claim 2, characterized in that, Both the guide groove (102) and the connecting seat (101) are open ends. The open end of the connecting seat (101) can be detachably installed with a limit plate (104) by bolts.
4. The photovoltaic module cleaning and maintenance equipment according to claim 1, characterized in that, The mounting bracket (1) has a sliding groove (103), and the bottom of the filter box (7) is provided with a second slider, which is slidably connected to the sliding groove (103).
5. A photovoltaic module cleaning and maintenance device according to claim 1, characterized in that, The coarse filter layer (801) consists of an installation frame and a non-woven fabric that can be detachably installed on the installation frame. The fine filter layer (802) consists of an installation frame, a filter screen that can be detachably installed around the installation frame, and activated carbon particles set inside multiple sets of filter screens. The inner wall of the filter box (7) is provided with two sets of limiting seats (8) from top to bottom. The coarse filter layer (801) and the fine filter layer (802) are slidably connected to the corresponding limiting seats (8).
6. A photovoltaic module cleaning and maintenance device according to claim 1, characterized in that, The filter box (7) is provided with a material inlet cover (701) at the top, and the material inlet cover (701) is located below the bottom of the movable seat (3).