Cleaning device

Abstract

The utility model provides a cleaning device. The cleaning device comprises a photovoltaic assembly and a cleaning device, the cleaning structure comprises a cleaning part which is movably arranged; the cleaning part is in contact with the surface of the photovoltaic module so as to clean the surface of the photovoltaic module; the water supplementing mechanism is used for conveying cleaning fluid to the cleaning part, and the cleaning device solves the technical problem that stains on the photovoltaic module are not easy to remove.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, and specifically to a cleaning device. Background Technology

[0002] Due to temperature differences, the surface temperature of photovoltaic modules also drops as the air temperature decreases at night. When the surface temperature of the module is lower than the dew point temperature of the surrounding air, water vapor in the air will condense into water droplets on the surface of the module. Alternatively, in environments with high humidity, water vapor will also condense on photovoltaic modules at night.

[0003] Condensed water droplets can block some sunlight during the day, reducing the amount of light received by photovoltaic modules and thus lowering power generation efficiency. In addition, long-term condensation can cause rust and corrosion on the frame and junction box of the photovoltaic modules, affecting their lifespan.

[0004] Furthermore, photovoltaic (PV) modules, composed of multiple individual solar cells connected in series and parallel and encapsulated, are the core component of a solar power plant. The structure of a PV module includes encapsulation glass, EVA film, solar cells, and a backsheet. Because PV modules operate outdoors for extended periods, the outermost encapsulation glass is prone to dust accumulation, leading to decreased light transmittance and consequently reduced power generation efficiency. Therefore, cleaning the surface of the encapsulation glass of PV modules is a routine part of the operation and maintenance of PV power plants. Currently, cleaning methods for PV modules include manual cleaning, machine cleaning, and intelligent robot cleaning.

[0005] Currently, manual and machine cleaning are carried out on a regular basis. Manual cleaning is inefficient, while machine cleaning can easily cause pressure damage to photovoltaic modules. Intelligent robot cleaning can work around the clock, but its application is limited by actual conditions.

[0006] The prior art proposes a mechanical waterless automatic cleaning device for photovoltaic modules, which uses a drive stepper motor and a dust removal stepper motor to remove dust from the surface of the photovoltaic modules. However, this invention can only solve the problem of dust on the surface of the modules. It is not very effective for stains left by rainwater and dust on the surface of the photovoltaic modules, or bird droppings. Utility Model Content

[0007] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a cleaning device to solve the technical problem that stains on photovoltaic modules are not easy to remove in related technologies.

[0008] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: a cleaning device is provided, comprising: a photovoltaic module; a cleaning structure, the cleaning structure including a movably disposed cleaning part; the cleaning part cleaning the surface of the photovoltaic module by contacting the surface of the photovoltaic module; and a water replenishment mechanism for supplying cleaning fluid to the cleaning part.

[0009] Furthermore, the cleaning device includes a mounting component connected to the photovoltaic module; a movable component is disposed within the mounting component, the movable component is movably disposed, and the cleaning unit is connected to the movable component.

[0010] Furthermore, the mounting component has a mounting groove extending in a preset direction; the mounting groove extends in the moving direction of the cleaning part; the moving component is disposed in the mounting groove, and the moving component is movably disposed in the mounting groove.

[0011] Furthermore, the mounting component includes: a base plate; two side plates, both of which are connected to the base plate; a mounting groove located between the two side plates; two top plates, each of which is connected to one of the two side plates; the mounting groove located between the top plate and the base plate; and a mounting opening between the two top plates for a cleaning structure to pass through.

[0012] Furthermore, the cleaning structure includes a connecting rod that passes through the mounting opening, is connected to the moving part, and is connected to the cleaning part.

[0013] Furthermore, the cleaning device also includes a mounting frame, the interior of which has mounting space for accommodating the photovoltaic module, and the mounting components are disposed on the mounting frame.

[0014] Furthermore, the cleaning unit includes: a cleaning rod movably disposed thereon; a brush head connected to the cleaning rod, and a water replenishment mechanism connected to the brush head; and a scraper connected to the cleaning rod.

[0015] Furthermore, the cleaning rod is provided with brush heads on both opposite sides; and / or, the brush heads are made of sponge; and / or, the scraper is made of rubber; and / or, the water replenishment mechanism includes a water supply pipe connected to the cleaning rod; and / or, a first humidity sensor is provided inside the brush head.

[0016] Furthermore, the cleaning structure also includes a second humidity sensor, which is disposed inside the photovoltaic module to detect the humidity on the surface of the photovoltaic module.

[0017] Furthermore, there are multiple second humidity sensors, which are arranged at intervals.

[0018] Beneficial effects:

[0019] The cleaning device of this utility model includes a photovoltaic module; a cleaning structure, the cleaning structure including a movably disposed cleaning part; the cleaning part cleaning the surface of the photovoltaic module by contacting the surface of the photovoltaic module; and a water replenishment mechanism for supplying cleaning fluid to the cleaning part, thereby solving the technical problem that stains on the photovoltaic module are not easy to remove.

[0020] The cleaning device of this invention solves the problem of water vapor condensation on the surface of photovoltaic modules at night;

[0021] The cleaning device of this invention solves the problem of cleaning the surface of photovoltaic modules;

[0022] The cleaning device of this invention solves the problems of low efficiency and easy pressure damage to the surface of photovoltaic modules caused by manual or machine cleaning. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the cleaning device used in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the installation components of the cleaning device used in this embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the working state of the cleaning device used in this embodiment of the utility model.

[0026] The above figures include the following reference numerals:

[0027] 1. Photovoltaic module; 2. Cleaning structure; 21. Cleaning section; 211. Cleaning rod; 212. Brush head; 213. First humidity sensor; 214. Scraper; 22. Connecting rod; 3. Water supply mechanism; 31. Water supply pipe; 4. Mounting components; 41. Moving components; 42. Mounting groove; 43. Base plate; 44. Side plate; 45. Top plate; 46. Mounting port; 5. Mounting frame; 6. Second humidity sensor. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0029] See Figures 1 to 3 According to an embodiment of the present invention, a cleaning device is provided, comprising: a photovoltaic module 1; a cleaning structure 2, the cleaning structure 2 including a movably disposed cleaning part 21; the cleaning part 21 cleaning the surface of the photovoltaic module 1 by contacting the surface of the photovoltaic module 1; and a water replenishment mechanism 3 for supplying cleaning fluid to the cleaning part 21.

[0030] With the above setup, given that a large amount of water vapor condenses on the surface of the photovoltaic module 1 at night, the cleaning unit 21 uses water vapor to clean the surface of the photovoltaic module. When the water content in the cleaning unit 21 is too low, the water replenishment mechanism 3 is activated to clean the photovoltaic module 1. This effectively cleans the surface stains of the photovoltaic module 1 and solves the problem of water vapor condensation on the surface of the photovoltaic module, effectively improving the power generation efficiency of the photovoltaic module, extending the service life of the photovoltaic module, and has a simple structure, which greatly reduces the cleaning cost of the photovoltaic module and solves the technical problem that stains on the photovoltaic module are not easy to remove.

[0031] See Figures 1 to 3 In the cleaning device of this embodiment, the cleaning device includes a mounting component 4, which is connected to the photovoltaic module 1; a moving component 41 is provided inside the mounting component 4, which is movably disposed, and the cleaning part 21 is connected to the moving component 41.

[0032] With the above configuration, the cleaning section 21 can be moved by the moving component 41, thereby expanding the cleaning area of ​​the cleaning section 21.

[0033] In the cleaning device of this embodiment, see Figures 1 to 3 The mounting component 4 has a mounting groove 42; the mounting groove 42 extends along the moving direction of the cleaning part 21; the moving component 41 is disposed in the mounting groove 42 and is movably disposed in the mounting groove 42.

[0034] With the above configuration, the cleaning unit 21 is placed in the mounting groove 42, and the movement direction of the moving part 41 is restricted, so that the moving part 41 drives the cleaning unit 21 to move more smoothly, thereby ensuring the cleaning effect on the photovoltaic module 1.

[0035] In the cleaning device of this embodiment, see Figures 1 to 3 The mounting component 4 includes: a base plate 43; two side plates 44, both of which are connected to the base plate 43; a mounting groove 42 located between the two side plates 44; two top plates 45, each of which is connected to the two side plates 44; the mounting groove 42 located between the top plate 45 and the base plate 43; and a mounting opening 46 between the two top plates 45 for the cleaning structure 2 to pass through.

[0036] With the above configuration, the mounting component 4 has a U-shaped structure, and the mounting component 4 can support the moving component 41 from multiple directions, so that the moving component 41 can move stably during long-term movement.

[0037] See Figures 1 to 3 In the cleaning device of this embodiment, the cleaning structure 2 includes a connecting rod 22, which passes through the mounting port 46, is connected to the moving part 41, and is connected to the cleaning part 21.

[0038] With the above configuration, the cleaning part 21 and the moving part 41 are connected as one unit by a connecting rod 22. By setting the shape of the connecting rod 22, the volume inside the mounting port 46 can be reduced, preventing foreign objects from entering the mounting groove 42.

[0039] In the cleaning device of this embodiment, see Figures 1 to 3 The cleaning device also includes a mounting frame 5, the interior of which has an installation space for accommodating the photovoltaic module 1, and the mounting component 4 is disposed on the mounting frame 5.

[0040] The above configuration provides a stable mounting position for the mounting component 4, enabling the mounting component 4 to provide strong support for the cleaning unit 21.

[0041] See Figures 1 to 3 In the cleaning device of this embodiment, the cleaning part 21 includes: a cleaning rod 211, which is movably disposed; a brush head 212, which is connected to the cleaning rod 211, and the water replenishment mechanism 3 is connected to the brush head 212; and a scraper 214, which is connected to the cleaning rod 211.

[0042] With the above setup, after cleaning, the residual moisture on the surface of the photovoltaic module 1 is removed by the silicone plate scraper 214 on the cleaning rod 211, and the surface humidity of the photovoltaic module 1 is detected. When the humidity is within acceptable limits, the cleaning device is turned off.

[0043] In the cleaning device of this embodiment, see Figures 1 to 3The cleaning rod 211 is provided with brush heads 212 on both sides; and / or, the brush heads 212 are made of sponge; and / or, the water replenishment mechanism 3 includes a water supply pipe 31 connected to the cleaning rod 211; and / or, the brush head 212 is provided with a first humidity sensor 213; and / or, the scraper 214 is made of rubber.

[0044] By employing the above setup, taking advantage of the fact that a large amount of water vapor condenses on the surface of the photovoltaic module 1 at night, a sponge brush head 212 is used to clean the surface of the photovoltaic module 1 using water vapor. When the water content in the sponge brush head 212 is detected to be too low, the water replenishment mechanism 3 is activated to clean the photovoltaic module 1. After cleaning, the silicone plate scraper 214 of the cleaning rod 211 is used to remove residual moisture from the surface of the photovoltaic module 1, and the surface humidity of the photovoltaic module 1 is detected. When the humidity is within acceptable limits, the module cleaning device is turned off. This effectively cleans stains on the surface of the photovoltaic module and solves the problem of water vapor condensation on the photovoltaic module surface, effectively improving the power generation efficiency of the photovoltaic module, extending the service life of the photovoltaic module, and has a simple structure, greatly reducing the cleaning cost of the photovoltaic module 1.

[0045] Specifically, the water replenishment mechanism 3 includes a water supply pipe connected to one side of the sponge brush head 212 of the cleaning rod 211.

[0046] In the cleaning device of this embodiment, see Figures 1 to 3 The cleaning structure further includes a second humidity sensor 6, which is disposed inside the photovoltaic module 1 to detect the humidity on the surface of the photovoltaic module 1.

[0047] With the above configuration, the second humidity sensor 6 is installed inside the lower mounting frame 5 to detect the surface humidity of the photovoltaic module 1, and another first humidity sensor 213 is installed inside the sponge brush head 212 to detect the water content of the sponge brush head 212.

[0048] See Figures 1 to 3 In the cleaning device of this embodiment, there are multiple second humidity sensors 6, which are arranged at intervals.

[0049] With the above settings, the cleaning device in this embodiment can effectively solve the problem of water vapor condensation on the surface of photovoltaic module 1, improve the working efficiency of photovoltaic module 1, and effectively clean some stubborn stains on the surface of photovoltaic module 1.

[0050] like Figure 1 As shown, the cleaning structure mainly includes a cleaning rod 211, with a sponge brush head 212 on each side of the cleaning rod 211. The sponge brush head 212 contains a first humidity sensor 213. A silicone scraper 214 is placed on the other side of the cleaning rod 211.

[0051] The cleaning rod 211 is connected to a water supply pipe 31 at its lower end, which is used to replenish water when the sponge brush head 212 is not wet enough; the photovoltaic module 1 has a built-in second humidity sensor 6 to detect the surface humidity of the photovoltaic module 1 at night.

[0052] like Figure 2 As shown, the cleaning rod 211 is connected to the bearing (i.e., the moving part 41) via the connecting rod 22, and slides within the mounting groove 42 via the bearing; wherein, the cleaning rod 211 is connected to the connecting rod 22 by screws.

[0053] Specifically, the cleaning unit 21 is inserted into the inner ring of the bearing by a welded support rod and fixed with screws. The humidity sensor is installed on the lower frame to detect the humidity of the photovoltaic module surface at night. The sensor installed inside the sponge brush head detects the moisture content of the sponge brush head 212 at the beginning and during the cleaning process.

[0054] When a large amount of water vapor condenses on the surface of the photovoltaic module 1, the second humidity sensor 6 built into the photovoltaic module 1 first detects the surface humidity. If the humidity exceeds the preset warning value, the cleaning structure 2 is activated, the cleaning rod 211 reverses, so that the sponge brush head 212 is attached to the surface of the photovoltaic module 1, and the bearing slides back and forth in the mounting groove 42 from left to right. The cleaning rod 211 is driven to slide from left to right on the surface of the photovoltaic module 1 through the connecting rod 22. After cleaning is completed, the cleaning rod 211 is flipped again, so that the silicone scraper 214 is attached to the surface of the photovoltaic module 1, and the bearing continues to slide back and forth in the mounting groove 42 from right to left. The cleaning rod 211 is driven to slide from right to left on the surface of the photovoltaic module 1 through the connecting rod 22 to remove the moisture from the surface of the photovoltaic module 1.

[0055] When no water droplets condense on the surface of the photovoltaic module 1 or the surface humidity does not reach the warning value, or when the first humidity sensor 213 built into the sponge brush head 212 detects that the water content in the sponge brush head 212 is insufficient, the water replenishment mechanism 3 is activated to introduce tap water into one end of the sponge brush head 212 of the cleaning rod 211 through the water supply pipe 31. When the first humidity sensor 213 detects that the water content in the sponge brush head 212 reaches the activation standard, the water replenishment mechanism 3 is turned off and the cleaning structure 2 is activated for cleaning.

[0056] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0057] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0058] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0059] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0060] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A cleaning device, characterized in that, The cleaning device comprises a cleaning structure (2) and a water supply mechanism (3), wherein the cleaning structure (2) comprises a cleaning part (21) movably arranged; the cleaning part (21) cleans the surface of the photovoltaic module (1) by contacting the surface of the photovoltaic module (1); the water supply mechanism (3) is used for supplying cleaning fluid to the cleaning part (21); a second humidity sensor (6) is arranged inside the photovoltaic module (1) to detect the humidity of the surface of the photovoltaic module (1); when the second humidity sensor (6) detects that the humidity of the surface of the photovoltaic module (1) exceeds a preset warning value, the cleaning structure (2) is started. The cleaning device comprises a mounting component (4) connected with the photovoltaic module (1); a moving component (41) is arranged in the mounting component (4); the cleaning part (21) is connected with the moving component (41). The mounting component (4) has a mounting groove (42); the mounting groove (42) extends along the moving direction of the cleaning part (21); the moving component (41) is arranged in the mounting groove (42); the moving component (41) is movably arranged in the mounting groove (42). The mounting component (4) comprises a bottom plate (43) and two side plates (44) connected with the bottom plate (43); the mounting groove (42) is located between the two side plates (44); two top plates (45) are respectively connected with the two side plates (44); the mounting groove (42) is located between the top plates (45) and the bottom plate (43); the two top plates (45) have a mounting opening (46) for the cleaning structure (2) to pass through. The cleaning structure (2) comprises a connecting rod (22) arranged in the mounting opening (46); the connecting rod (22) is connected with the moving component (41) and the cleaning part (21).

2. The cleaning device of claim 1, wherein, The cleaning device further comprises a mounting frame (5) having a mounting space for accommodating the photovoltaic module (1); the mounting component (4) is arranged on the mounting frame (5).

3. The cleaning device of claim 2, wherein, The cleaning part (21) comprises a cleaning rod (211) movably arranged, a brush head (212) connected with the cleaning rod (211), a water supply mechanism (3) connected with the brush head (212), and a scraper (214) connected with the cleaning rod (211).

4. The cleaning device of claim 3, wherein, 8. The cleaning device according to claim 7, wherein the cleaning rod (211) is provided with the brush head (212) on both sides thereof; the brush head (212) is made of sponge; the scraper (214) is made of rubber; and / or the cleaning rod (211) is provided with the brush head (212) on both sides thereof. ​ ​ ​ 5. The cleaning device of claim 4, wherein, ​ 6. The cleaning device of claim 2, wherein, ​ 7. The cleaning device of claim 1, wherein, ​ ​ ​ ​ ​ ​ ​ ​ The water supplementing mechanism (3) comprises a water supply pipe (31) connected with the cleaning rod (211); and / or, The brush head (212) is provided with a first humidity sensor (213) therein.

9. The cleaning device of claim 1, wherein, The second humidity sensor (6) is in plurality, and the plurality of second humidity sensors (6) are arranged at intervals.

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