Solar cell module convenient for cleaning rainwater
By designing a cleaning mechanism with scrapers and spray pipes on the solar cell modules, the problems of rainwater and dust accumulation are solved, achieving efficient cleaning, improving power generation efficiency and module lifespan, and reducing cleaning costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DIANTOU CHUANGU SOLAR ENERGY TECH (WUXI) CO LTD
- Filing Date
- 2025-04-20
- Publication Date
- 2026-05-05
AI Technical Summary
Existing solar cell modules, when exposed to the outdoors for extended periods, are susceptible to light blockage due to rain and dust accumulation, which reduces photoelectric conversion efficiency and may corrode sealing materials. This necessitates regular cleaning by manual labor or smart equipment, resulting in high costs and low efficiency.
A cleaning mechanism comprising a scraper and a spray pipe was designed. The scraper is moved by a drive mechanism to remove rainwater, and the spray pipe nozzle is driven by a worm gear motor to clean dust. The mechanism is simple in structure, easy to operate, and low in cost.
It effectively removes rainwater and dust, prevents aging of sealing materials, improves power generation efficiency, extends component life, and reduces cleaning costs.
Smart Images

Figure CN224205039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solar cell module cleaning technology, and specifically discloses a solar cell module that is easy to clean rainwater. Background Technology
[0002] Against the backdrop of a global push for clean energy development, solar energy, as an inexhaustible and green energy source, is finding increasingly widespread applications. Solar cell modules, as key components in converting solar energy into electricity, play a central role in various photovoltaic power generation systems.
[0003] However, solar panels are typically installed outdoors and exposed to the natural environment for extended periods, facing numerous challenges. Rain and dust are common factors affecting their performance. After rainfall, a large amount of water remains on the surface of the panels, forming a water film. Dust, on the other hand, continuously settles onto the panels with airflow. This accumulation of rainwater and dust on the surface of the solar panels severely blocks sunlight from reaching the panels, significantly reducing photoelectric conversion efficiency and resulting in a substantial decrease in power generation.
[0004] Meanwhile, prolonged rainwater residue can corrode the sealing materials on the surface of the solar panels, accelerating their aging and reducing their sealing performance. This can allow moisture to seep into the panels, damaging internal circuits and electronic components. Currently, to maintain the normal operation of solar panels, regular manual cleaning and maintenance are typically required, or intelligent cleaning equipment (photovoltaic panel cleaning robots) can be used. Manual cleaning is time-consuming, labor-intensive, and inefficient, while intelligent cleaning equipment is complex, costly, and requires high maintenance. Therefore, it is necessary to propose a solar panel design that facilitates rainwater removal to address the aforementioned problems. Utility Model Content
[0005] This invention proposes a solar cell module that facilitates the cleaning of rainwater. It effectively removes dust and rainwater from the surface of the solar cell module, extending its lifespan and improving power generation efficiency. Furthermore, the device is simple in structure, easy to operate, and has low manufacturing costs.
[0006] This utility model is implemented as follows: a solar cell module that facilitates rainwater cleaning includes a solar cell module body. A cleaning mechanism is provided above the solar cell module body. The cleaning mechanism includes a movable plate, a scraper at the bottom of the movable plate, and fixed shafts on both sides of the movable plate. The fixed shaft on the left is fixedly connected to the outer wall of the movable plate, and the fixed shaft on the right is rotatably connected to the outer wall of the movable plate. Rotating rings are provided on the outer walls of both fixed shafts. The rotating ring on the left is movably sleeved on the outer wall of the fixed shaft on the left, and the rotating ring on the right is fixedly installed on the outer wall of the fixed shaft on the right. Support plates are fixedly installed on the outer walls of both rotating rings. A spray pipe is rotatably connected between the two support plates. A fixed plate is fixedly sleeved on the outer wall of the fixed shaft on the left. Semi-circular toothed plates are fixedly installed at both ends of the fixed plate. A gear matching the two toothed plates is provided on the outer wall of the support plate on the left. One end of the spray pipe passes through the front support plate and is coaxially fixedly connected to the gear.
[0007] A drive mechanism is provided on the outer wall of the solar cell module body.
[0008] As a preferred embodiment of the present invention for a solar cell module that facilitates rainwater removal, a worm gear motor is fixedly mounted on the right side wall of the movable plate via a substrate, and the output end of the worm gear motor is fixedly connected to one end of a fixed shaft on the right side.
[0009] As a preferred embodiment of the present invention for a solar cell module that facilitates rainwater removal, the driving mechanism includes two mounting plates that are respectively fixedly installed on the left and right side walls of the solar cell module body. The upper end surfaces of the two mounting plates are provided with through holes. A screw is rotatably connected inside the through hole on the left side. A slider is threadedly connected to the outer side wall of the screw. A first motor is fixedly installed on the outer side wall of the left side mounting plate. The output end of the first motor is coaxially fixedly connected to the screw.
[0010] As a preferred embodiment of this utility model for a solar cell module that facilitates rainwater removal, a sliding rod is rotatably and fixedly installed inside the through hole on the right side. A movable block is provided on the outer wall of the sliding rod. Support blocks are fixedly connected to the upper end surfaces of both the movable block and the sliding block. The tops of the two support blocks are fixedly connected to the bottom of the movable plate.
[0011] As a preferred embodiment of this utility model of a solar cell module that facilitates rainwater removal, the bottom of the movable plate is provided with a groove, a buffer plate is slidably connected inside the groove, and multiple damping springs are fixedly installed between the top of the buffer plate and the top surface inside the groove.
[0012] As a preferred embodiment of this utility model of a solar cell module that facilitates rainwater removal, the buffer plate and the scraper are detachably connected.
[0013] As a preferred embodiment of this utility model of a solar cell module that facilitates rainwater removal, the bottom of the spray pipe is connected to multiple nozzles, and the outer wall of the spray pipe is connected to a flexible hose.
[0014] The beneficial effects of this utility model are:
[0015] 1. In this utility model, when cleaning rainwater remaining on the body of a solar cell module, a drive mechanism moves a scraper to remove rainwater remaining on the surface of the solar cell module, thus preventing the sealing material on the surface of the battery module from aging and corroding due to long-term rainwater retention.
[0016] 2. In this utility model, when it is necessary to clean the dust on the solar cell module body, the worm gear motor is started, which makes the support plate rotate and drives the gear connected to it to rotate around the fixed shaft. The gear meshes with the toothed plate located in front, which can limit the gear and the spray pipe, and make the nozzle on the spray pipe face the solar cell module body to wash the dust on the surface of the solar cell module body. The scraper can remove the wastewater after washing, which can facilitate the cleaning of dust and rainwater on the surface of the solar cell module body, extend the service life of the solar cell module, improve the power generation efficiency, and the device has a simple structure, is easy to operate, and has low manufacturing cost.
[0017] 3. This utility model uses a worm gear motor to adjust the position of the gear, so that the gear rotates along the toothed plate, which can adjust the angle of the spray nozzle, so that the nozzle is aligned with the scraper, making it easier for the scraper to perform rinsing and cleaning. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0019] Figure 1 This is an overall structural diagram of a solar cell module that facilitates rainwater removal according to the present invention;
[0020] Figure 2 This is a left-side structural view of the cleaning mechanism of this utility model;
[0021] Figure 3 This is a partial structural diagram of the cleaning mechanism of this utility model;
[0022] Figure 4 This is a top view of the movable plate of this utility model;
[0023] Figure 5 This is a left sectional view of the movable plate of this utility model;
[0024] Figure 6 This is a left sectional view of the drive mechanism of this utility model;
[0025] Figure 7 This is a left-side sectional view of the drive mechanism of this utility model.
[0026] The markings in the diagram are as follows: 1. Solar cell module body; 2. Mounting plate; 201. Through hole; 2011. Slide rod; 202. Screw; 203. First motor; 204. Slider; 2041. Moving block; 205. Support block; 3. Cleaning mechanism; 4. Moving plate; 401. Groove; 4011. Damping spring; 402. Buffer plate; 403. Scraper; 5. Fixed shaft; 501. Rotating ring; 502. Worm gear motor; 6. Support plate; 601. Spray pipe; 7. Fixed plate; 701. Toothed plate; 702. Gear. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0028] Please see Figure 1-7 A solar cell module for easy rainwater removal includes a solar cell module body 1. A cleaning mechanism 3 is provided on the top of the solar cell module body 1. The cleaning mechanism 3 includes a movable plate 4. A scraper 403 is provided at the bottom of the movable plate 4. Fixed shafts 5 are provided on both sides of the movable plate 4. The fixed shaft 5 on the left side is fixedly connected to the outer wall of the movable plate 4, and the fixed shaft 5 on the right side is rotatably connected to the outer wall of the movable plate 4. Rotating rings 501 are provided on the outer walls of both fixed shafts 5. The rotating ring 501 on the left side is movably sleeved on the fixed shaft on the left side. The outer wall of 5 has a rotating ring 501 fixedly installed on the outer wall of the right fixed shaft 5. Support plates 6 are fixedly installed on the outer walls of both rotating rings 501. Spray pipe 601 is rotatably connected between the two support plates 6. A fixed plate 7 is fixedly sleeved on the outer wall of the left fixed shaft 5. Semi-circular toothed plates 701 are fixedly installed at both ends of the fixed plate 7. A gear 702 matching the two toothed plates 701 is provided on the outer wall of the left support plate 6. One end of the spray pipe 601 passes through the front support plate 6 and is coaxially fixedly connected to the gear 702.
[0029] A drive mechanism is provided on the outer wall of the solar cell module body 1.
[0030] In this embodiment: when cleaning residual rainwater on the solar cell module body 1, the scraper 403 is moved by the drive mechanism to remove the residual rainwater on the surface of the solar cell module body 1, preventing rainwater from remaining on the surface of the battery module and causing aging and corrosion of the surface sealing material of the battery module; when it is necessary to clean dust on the solar cell module body 1, the worm gear motor 502 is started, which drives the rotating ring 501, support plate 6 and spray pipe 601 connected to it to rotate, causing the support plate 6 to rotate and drive the gear 702 connected to it to rotate 90 degrees around the fixed shaft 5, so that the gear 702 meshes with the toothed plate 701 located in front, which can limit the gear 702 and the spray pipe 601, so that the nozzle on the spray pipe 601 faces the solar cell module body 1 to wash the dust on the surface of the solar cell module body 1. The scraper 403 can remove the wastewater after washing, so as to achieve the effect of cleaning the dust and rainwater on the surface of the solar cell module body 1, preventing rainwater and dust from covering the surface of the solar cell module and blocking the light irradiation, thus reducing the photoelectric conversion efficiency;
[0031] Furthermore, by adjusting the position of the gear 702 through the worm gear motor 502, the gear 702 rotates along the toothed plate 701, which can adjust the angle of the spray nozzle of the spray pipe 601 so that the nozzle is aligned with the scraper 403 to rinse the scraper 403, making it easier to clean the scraper 403.
[0032] As a technical optimization of this utility model, a worm gear motor 502 is fixedly installed on the right side wall of the movable plate 4 via a base plate, and the output end of the worm gear motor 502 is fixedly connected to one end of the right fixed shaft 5.
[0033] In this embodiment: by starting the worm gear motor 502, the rotating ring 501 located on the left side can be driven to rotate.
[0034] As a technical optimization of this utility model, the driving mechanism includes two mounting plates 2 that are respectively fixedly installed on the left and right side walls of the solar cell module body 1. The upper end face of each mounting plate 2 is provided with a through hole 201. A screw 202 is rotatably connected inside the through hole 201 on the left side. A slider 204 is threadedly connected to the outer side wall of the screw 202. A first motor 203 is fixedly installed on the outer side wall of the left side mounting plate 2. The output end of the first motor 203 is coaxially fixedly connected to the screw 202.
[0035] In this embodiment: by starting the first motor 203, the screw 202 rotates, which can drive the slider 204 to move.
[0036] As a technical optimization of this utility model, a slide rod 2011 is rotatably and fixedly installed inside the through hole 201 on the right side. A moving block 2041 is provided on the outer wall of the slide rod 2011. Support blocks 205 are fixedly connected to the upper end surfaces of the moving block 2041 and the slide block 204. The tops of the two support blocks 205 are fixedly connected to the bottom of the moving plate 4.
[0037] In this embodiment, the sliding rod 2011 can restrict the movement direction of the moving block 2041, so that the two support blocks 205 can stably support the moving plate 4 to move.
[0038] As a technical optimization of this utility model, a groove 401 is provided at the bottom of the movable plate 4, a buffer plate 402 is slidably connected inside the groove 401, and a plurality of damping springs 4011 are fixedly installed between the top of the buffer plate 402 and the top surface inside the groove 401.
[0039] In this embodiment: When the scraper 403 contacts the solar cell module body 1, the scraper 403 lifts the buffer plate 402 through multiple damping springs 4011, causing the buffer plate 402 to compress the multiple damping springs 4011. At this time, the multiple damping springs 4011 in the compressed state rebound and squeeze the buffer plate 402, causing the buffer plate 402 to squeeze the scraper 403 downward, so that the scraper 403 always abuts against the surface of the solar cell module body 1.
[0040] As a technical optimization of this utility model, the buffer plate 402 and the scraper 403 are detachably connected.
[0041] In this embodiment, the scraper 403 can be disassembled and replaced.
[0042] As a technical optimization of this utility model, the bottom of the spray pipe 601 is connected to multiple nozzles, and the outer wall of the spray pipe 601 is connected to a flexible hose.
[0043] In this embodiment: multiple nozzles can spray water from the spray pipe 601 and external water can be introduced into the spray pipe 601 through a hose. The spray pipe 601 can rotate freely. Since multiple nozzles are at the bottom of the spray pipe 601, the weight of the bottom of the spray pipe 601 is increased. Therefore, due to gravity, the nozzles of the spray pipe 601 always face downwards when it is unrestricted.
[0044] The working principle and usage process of this utility model are as follows: First, the device is electrically connected to an external operation panel or control switch. Then, when cleaning the residual rainwater on the solar cell module body 1, the first motor 203 is started, which causes the screw 202 to rotate and drive the slider 204 and the support block 205, causing the moving plate 4 to move and drive the scraper 403 to move. Due to the rebound of the damping spring 4011, the buffer plate 402 and the scraper 403 are pushed down, so that the bottom of the scraper 403 is always in contact with the surface of the solar cell module body 1. Therefore, when the scraper 403 moves along the solar cell module body 1, it can remove the residual rainwater on the surface of the solar cell module body 1.
[0045] When it is necessary to clean the dust on the solar cell module body 1, connect one end of the hose to the external water pipe, and then start the worm gear motor 502. This will drive the rotating ring 501, support plate 6, and spray pipe 601 connected to it to rotate. This will cause the support plate 6 to rotate, which will drive the gear 702 connected to it to rotate 90 degrees around the fixed shaft 5. This will allow the gear 702 to mesh with the toothed plate 701 located in front, which will limit the movement of the gear 702. Since the gear 702 is coaxially fixedly connected to the spray pipe 601, it will also limit the movement of the spray pipe 601. At this time, the nozzle on the spray pipe 601 will face the solar cell module body 1 (the nozzle will be slightly tilted towards the solar cell module body 1). After water is introduced into the spray pipe 601, the first motor 203 of the drive mechanism will be started, which will cause the scraper 403 and the spray pipe 601 to move. After the spray pipe 601 washes the dust off the surface of the solar cell module body 1, the scraper 403 can remove the wastewater after washing, thus achieving the effect of cleaning the dust and rainwater off the surface of the solar cell module body 1.
[0046] After the scraper 403 is used, there is residual sewage or dust on its surface. When cleaning the scraper 403, the worm gear motor 502 is restarted so that the gear 702 meshes with the toothed plate 701 located in front. The position of the gear 702 is adjusted so that the gear 702 rotates along the toothed plate 701. The angle of the spray nozzle of the spray pipe 601 can be adjusted so that the nozzle is aimed at the scraper 403 to rinse one side of the scraper 403. Then the spray pipe 601 is rotated to the rear of the scraper 403 and the other side of the scraper 403 is rinsed in the same way.
[0047] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0048] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A solar cell module that facilitates rainwater removal, comprising a solar cell module body (1), characterized in that: A cleaning mechanism (3) is provided above the solar cell module body (1). The cleaning mechanism (3) includes a movable plate (4). A scraper (403) is provided at the bottom of the movable plate (4). Fixed shafts (5) are provided on both sides of the movable plate (4). The fixed shaft (5) on the left side is fixedly connected to the outer wall of the movable plate (4), and the fixed shaft (5) on the right side is rotatably connected to the outer wall of the movable plate (4). Rotating rings (501) are provided on the outer walls of both fixed shafts (5). The rotating ring (501) on the left side is movably sleeved on the outer wall of the fixed shaft (5) on the left side. The rotating ring (501) on the right side is rotatably sleeved on the outer wall of the fixed shaft (5) on the left side. 01) Fixedly installed on the outer wall of the right fixed shaft (5), the outer walls of the two rotating rings (501) are fixedly installed with support plates (6), and a spray pipe (601) is rotatably connected between the two support plates (6). A fixed plate (7) is fixedly sleeved on the outer wall of the left fixed shaft (5). Semi-circular toothed plates (701) are fixedly installed at both ends of the fixed plate (7). A gear (702) matching the two toothed plates (701) is provided on the outer wall of the left support plate (6). One end of the spray pipe (601) passes through the front support plate (6) and is coaxially fixedly connected with the gear (702). The outer wall of the solar cell module body (1) is provided with a drive mechanism.
2. A solar cell module for easy rainwater removal according to claim 1, characterized in that: A worm gear motor (502) is fixedly mounted on the right side wall of the movable plate (4) via a base plate, and the output end of the worm gear motor (502) is fixedly connected to one end of the fixed shaft (5) on the right side.
3. A solar cell module for easy rainwater removal according to claim 1, characterized in that: The driving mechanism includes two mounting plates (2) that are fixedly installed on the left and right side walls of the solar cell module body (1). The upper end face of the two mounting plates (2) is provided with through holes (201). A screw (202) is rotatably connected inside the through hole (201) on the left side. A slider (204) is threadedly connected to the outer side wall of the screw (202). A first motor (203) is fixedly installed on the outer side wall of the mounting plate (2) on the left side. The output end of the first motor (203) is coaxially fixedly connected to the screw (202).
4. A solar cell module for easy rainwater removal according to claim 3, characterized in that: A slide rod (2011) is rotatably fixedly installed inside the through hole (201) on the right side. A moving block (2041) is provided on the outer wall of the slide rod (2011). Support blocks (205) are fixedly connected to the upper end surfaces of the moving block (2041) and the slide rod (204). The tops of the two support blocks (205) are fixedly connected to the bottom of the moving plate (4).
5. A solar cell module for easy rainwater removal according to claim 1, characterized in that: The bottom of the movable plate (4) is provided with a groove (401), and a buffer plate (402) is slidably connected inside the groove (401). Multiple damping springs (4011) are fixedly installed between the top of the buffer plate (402) and the top surface inside the groove (401).
6. A solar cell module for easy rainwater removal according to claim 5, characterized in that: The buffer plate (402) and the scraper (403) are detachably connected.
7. A solar cell module for easy rainwater removal according to claim 1, characterized in that: The bottom of the spray pipe (601) is connected to multiple nozzles, and the outer wall of the spray pipe (601) is connected to a flexible hose.