A photovoltaic panel coating application material device

Abstract

This utility model discloses a photovoltaic panel coating material application device, including a workbench; it also includes a support plate and a cleaning component fixed to the upper part of the workbench; a third groove is opened through the front end of the support plate, a slider is slidably arranged on the inner wall of the third groove, a second spring is fixedly connected between the slider and the bottom end of the inner wall of the support plate, a locking block is fixedly connected to the rear end of the second spring, and a rotating rod is rotatably arranged between the two support plates. The outer wall of the rotating rod has two locking grooves, which are symmetrically arranged, and the locking block is adapted to the locking groove. This utility model compresses the second spring by pulling the slider, causing the locking block to disengage from the locking groove of the rotating rod. Then, the fixed plate is rotated so that the clean cleaning block above faces down and contacts the photovoltaic panel. Afterwards, the second spring returns to its original position, causing the locking block to engage with the corresponding locking groove, fixing the angle of the rotating rod. At this time, the used cleaning block above can be disassembled and replaced during the cleaning process, thereby avoiding downtime and affecting normal processing efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of coating material devices, specifically to a photovoltaic panel coating material device. Background Technology

[0002] As a core component of clean energy, the photoelectric conversion efficiency of photovoltaic cells is a key factor determining their market competitiveness. To maximize light energy capture and minimize light reflection loss, modern photovoltaic glass typically requires one or more functional thin films coated on its surface, such as anti-reflective films, self-cleaning films, and passivation layers. The quality of these coatings directly determines the output power and long-term reliability of the photovoltaic module.

[0003] In existing coating material application devices, photovoltaic panels are placed on a conveyor belt for transport. First, the surface dust is removed by brushes and negative pressure dust collection. Then, plasma activation treatment is used to ensure that the coating adheres tightly. The coating, stored at a constant temperature, is precisely delivered to the coating roller by a metering pump. The roller contacts the surface of the photovoltaic panel, and by adjusting the roller pressure and the scraper gap, the coating is evenly pressed onto the panel to control the coating thickness.

[0004] After prolonged use, the cleaning block's cleaning ability will gradually become saturated and diminish. If it is not replaced in time, it will lead to a decrease in the cleaning effect on the photovoltaic panels. Due to the lack of a multi-module conversion structure, operators cannot safely access and replace the cleaning mechanism near the moving parts while the equipment is running, requiring the equipment to be shut down for replacement, which in turn leads to a reduction in coating efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a photovoltaic panel coating material application device. By pulling the slider to compress the second spring, the locking block is disengaged from the locking groove of the rotating rod. Then, the fixing plate is rotated so that the clean cleaning block above faces down and contacts the photovoltaic panel. After that, the second spring resets and drives the locking block to lock into the corresponding locking groove, fixing the angle of the rotating rod. At this time, the used cleaning block above can be disassembled and replaced during the cleaning process, thereby avoiding downtime and affecting normal processing efficiency.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A photovoltaic panel coating material application device includes a workbench; it also includes a support plate and a cleaning component fixed to the upper end of the workbench; a third groove is opened through the front end of the support plate, a slider is slidably arranged on the inner wall of the third groove, a second spring is fixed between the slider and the bottom end of the inner wall of the support plate, a locking block is fixed to the rear end of the second spring, a rotating rod is rotatably arranged between the two support plates, and two locking grooves are opened on the outer wall of the rotating rod. The two locking grooves are symmetrically arranged, and the locking block is adapted to the locking groove.

[0008] In one optional embodiment, two fixing plates are rotatably provided on the outer wall of the rotating rod, and multiple first grooves are opened on the inner side of the fixing plates, with mounting plates slidably provided on the inner wall of the first grooves.

[0009] In one optional embodiment, a first spring is fixedly connected between the mounting plate and the inner wall of the first groove, and a cleaning block is detachably provided on the inner wall of the mounting plate.

[0010] In one optional embodiment, a second groove is provided through the upper end of the worktable, and multiple conveying rollers are rotatably arranged on the inner wall of the second groove. The multiple conveying rollers are interconnected by a chain. Two limiting plates are fixed to the upper end of the worktable. The limiting plates are L-shaped, and multiple clamping rollers are rotatably arranged on the top of the inner wall of the limiting plates. A coating box is provided at the upper end of the limiting plates.

[0011] In one optional embodiment, the cleaning assembly includes a support frame fixed to the upper end of the workbench, a water tank and a water pump fixed to the upper end of the support frame, and a connecting pipe fixed to the outlet end of the water pump.

[0012] In one optional embodiment, the cleaning assembly further includes a flow divider fixed to the other end of the connecting pipe, a nozzle and an infrared sensor fixed to the lower end of the flow divider, and a collection box slidably disposed at the lower end of the workbench.

[0013] In one alternative embodiment, the support frame has an inverted U-shape on its side, multiple nozzles are equidistantly distributed, and the collection box is located below the cleaning block.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By pulling the slider to compress the second spring, the locking block is disengaged from the locking groove of the rotating rod. Then, the fixing plate is rotated so that the clean cleaning block on top faces down and contacts the photovoltaic panel. After that, the second spring resets and drives the locking block to lock into the corresponding locking groove, fixing the angle of the rotating rod. At this time, the used cleaning block on top can be disassembled and replaced during the cleaning process, thereby avoiding downtime and affecting normal processing efficiency.

[0016] 2. The position of the photovoltaic panel is detected by an infrared sensor. The water pump delivers the cleaning solution in the water tank to multiple equally spaced nozzles through the connecting pipe. The nozzles spray water onto the surface of the photovoltaic panel to rinse it, remove dust and soften stubborn stains, and prevent impurities from adhering to the surface of the photovoltaic panel and affecting the coating effect. As the photovoltaic panel moves, the cleaning solution and impurities on the surface of the photovoltaic panel fall into the collection box below for centralized treatment. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of a photovoltaic panel coating material application device;

[0018] Figure 2A three-dimensional structural schematic diagram of the mounting plate of a photovoltaic panel coating material device;

[0019] Figure 3 This is a cross-sectional three-dimensional structural diagram of a support plate for a photovoltaic panel coating material device;

[0020] Figure 4 A three-dimensional structural diagram of a limiting plate for a photovoltaic panel coating material device;

[0021] Figure 5 This is a three-dimensional structural diagram of a support frame for a photovoltaic panel coating material device.

[0022] In the diagram: 1. Workbench; 101. Support plate; 102. Third tank; 103. Slider; 104. Second spring; 105. Locking block; 106. Rotating rod; 107. Locking groove; 2. Fixing plate; 201. Support frame; 202. Water tank; 203. Water pump; 204. Connecting pipe; 205. Diverter plate; 206. Nozzle; 207. Infrared sensor; 208. Collection box; 3. First tank; 4. Mounting plate; 5. First spring; 6. Cleaning block; 7. Second tank; 8. Conveying roller; 9. Limiting plate; 10. Clamping roller; 11. Coating box. Detailed Implementation

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, the internal connection of two elements, or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] 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. 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 process, method, product, or apparatus.

[0027] The main causes of photovoltaic (PV) panel efficiency degradation and shortened lifespan are external environmental corrosion, specifically: First, accumulated dirt and shading. Dust, bird droppings, industrial particles, etc., in the atmosphere accumulate on the surface of PV panels, forming a shading layer. When the amount of dust accumulated per square meter reaches 2g, the power generation efficiency can decrease by 10%-15%. Second, rainwater erosion and corrosion. Acidic substances carried by rainwater (such as acid rain) can corrode the tempered glass surface of PV panels, causing a decrease in light transmittance, while the metal frame material is also prone to rust. Third, ultraviolet (UV) aging. PV panels exposed to sunlight for a long time will experience oxidative degradation of their surface encapsulation materials (such as EVA film) due to UV radiation, leading to yellowing and a 5%-8% reduction in light transmittance. Fourth, the effects of extreme temperature and humidity. High temperature and high humidity environments accelerate the aging of internal PV panel components, while low-temperature freeze-thaw cycles can cause the coating to crack and peel off.

[0028] To address the aforementioned issues, applying functional coatings to the surface of photovoltaic panels has become the mainstream solution in the industry. These coatings, possessing properties such as anti-fouling, self-cleaning, weather resistance, and corrosion resistance, can effectively reduce dirt accumulation (self-cleaning coatings reduce residual dust after rainwater washing by more than 60%), resist acid and alkali corrosion (weather-resistant coatings allow photovoltaic panels to operate stably in environments with pH values ​​of 3-11), and delay UV aging (anti-UV coatings control the annual light transmittance decay rate to within 1%). This extends the effective lifespan of photovoltaic panels by 3-5 years and increases power generation efficiency by 8%-15%. Currently, commonly used photovoltaic panel coating materials include fluoropolymers (such as polytetrafluoroethylene), nano-silica composite materials, and silicone resins. Different materials require specific coating processes to achieve optimal performance.

[0029] Existing photovoltaic panel coating equipment is mainly divided into two categories: offline coating equipment and online coating equipment. However, in practical applications, there are many technical limitations, making it difficult to meet the needs of high-quality development in the photovoltaic industry.

[0030] Offline coating equipment is mainly used for batch coating in the photovoltaic panel production process, such as roller coating machines and spray coating machines, to coat finished photovoltaic panels at the end of the production line. Its advantage lies in high coating precision (coating thickness error can be controlled within ±2μm), but it has significant drawbacks: First, it cannot be adapted to existing photovoltaic panels. For photovoltaic panels in existing power plants (especially rooftop photovoltaics and large ground-mounted power plants), offline coating requires disassembling the photovoltaic panels and transporting them to the factory for processing, which can easily damage the modules during disassembly. Second, the coating materials have poor compatibility. Offline coating often uses high-temperature curing coatings (curing temperature 80-120℃), while some flexible photovoltaic panels (such as thin-film photovoltaic modules) cannot withstand high temperatures, easily leading to substrate deformation. Third, the equipment investment is large. The investment for a single offline coating production line exceeds ten million yuan, making it only suitable for large photovoltaic module manufacturers, and difficult for small and medium-sized power plant operation and maintenance companies to afford.

[0031] Online coating equipment is mainly used for coating photovoltaic panels at power plants, including manual handheld spray guns and semi-automatic coating robots, suitable for the maintenance and renovation of existing power plants. However, this type of equipment has three major problems: First, poor coating uniformity. When manually applying coatings with handheld spray guns, the coating thickness can vary by ±10μm due to the operator's experience and physical strength. Excessive thickness in some areas can lead to cracking, while insufficient thickness will not provide effective protection. Although semi-automatic robots can control their movement trajectory, when photovoltaic panels are installed at an angle, the coating is prone to flow due to gravity, forming "tear marks" defects that affect light transmittance. Second, low material utilization. During the spraying process, the atomized coating will disperse into the air, not only wasting materials but also causing environmental pollution due to the emission of volatile organic compounds (VOCs), which is inconsistent with the "green and low-carbon" development concept of the photovoltaic industry. Third, insufficient environmental adaptability. When working outdoors, wind speeds exceeding level 3 will cause disordered spray atomization, resulting in pinholes and bubbles in the coating. Low temperature (below 5℃) or high humidity (above 85%) environments will affect the curing of the coating, leading to a decrease in coating adhesion (adhesion level drops from level 1 to level 3-4), and peeling will occur in a short period of time.

[0032] Existing coating equipment generally lacks intelligent management capabilities: on the one hand, it cannot monitor key indicators such as coating thickness and uniformity in real time, requiring offline sampling and testing (such as destructive sampling measurement), resulting in quality problems not being corrected in a timely manner and a rework rate as high as 10%-15%; on the other hand, it is not linked with the photovoltaic power station management system, making it impossible to formulate differentiated coating plans based on data such as the operating years of the photovoltaic panels and the degree of pollution (e.g., increasing the coating thickness in highly polluted areas), resulting in "over-coating" or "under-coating". In addition, the coating equipment is disconnected from the pretreatment (such as surface cleaning) process. If oil stains and oxide layers on the surface of the photovoltaic panels are not completely removed before coating, it will lead to insufficient adhesion between the coating and the substrate, resulting in large-scale peeling after 1-2 years of service.

[0033] As the photovoltaic industry develops towards "high efficiency, long lifespan, and low cost," higher demands are being placed on coating technology: Large-scale ground-mounted power plants require unmanned, large-scale coating (processing over 1000 panels per day); distributed photovoltaic systems (such as building-integrated photovoltaics) need to adapt to complex building forms and confined spaces; and coating equipment in special environments such as high altitudes and coastal areas requires stronger wind and corrosion resistance. Existing equipment can no longer meet these diverse needs, becoming a key factor restricting the large-scale application of photovoltaic panel coating technology.

[0034] Please refer to Figures 1-5 This utility model provides an embodiment: a photovoltaic panel coating material application device, including a workbench 1; it also includes a support plate 101 fixed to the upper end of the workbench 1 and a cleaning component; a third groove 102 is opened through the front end of the support plate 101, a slider 103 is slidably arranged on the inner wall of the third groove 102, a second spring 104 is fixedly connected between the slider 103 and the bottom end of the inner wall of the support plate 101, a locking block 105 is fixedly connected to the rear end of the second spring 104, a rotating rod 106 is rotatably arranged between the two support plates 101, two locking grooves 107 are opened on the outer wall of the rotating rod 106, the two locking grooves 107 are symmetrically arranged, the locking block 105 is adapted to the locking groove 107, and through... Pulling the slider 103 compresses the second spring 104, causing the locking block 105 to disengage from the locking groove 107 of the rotating rod 106. Then, rotating the fixing plate 2 causes the clean cleaning block 6 above to face downwards and contact the photovoltaic panel. Afterward, the second spring 104 resets, causing the locking block 105 to engage with the corresponding locking groove 107, fixing the angle of the rotating rod 106. At this time, the used cleaning block 6 above can be disassembled and replaced during the cleaning process, thus avoiding downtime and affecting normal processing efficiency. This solves the problem that due to the lack of a multi-module conversion structure, operators cannot safely access and replace the cleaning mechanism near the moving parts during equipment operation, requiring equipment shutdown for replacement, which leads to reduced coating efficiency.

[0035] Please refer to Figures 1-4In a preferred embodiment of this utility model, two fixing plates 2 are rotatably arranged on the outer wall of the rotating rod 106. Multiple first grooves 3 are formed on the inner side of the fixing plates 2. Mounting plates 4 are slidably arranged on the inner wall of the first grooves 3. A first spring 5 is fixedly connected between the mounting plate 4 and the inner wall of the first grooves 3. A cleaning block 6 is detachably arranged on the inner wall of the mounting plate 4. A second groove 7 is formed through the upper end of the workbench 1. Multiple conveying rollers 8 are rotatably arranged on the inner wall of the second groove 7. The multiple conveying rollers 8 are interconnected by a chain. Two limiting plates 9 are fixedly connected to the upper end of the workbench 1. The limiting plates 9 are L-shaped. Multiple clamping rollers 10 are rotatably arranged at the top of the inner wall of the limiting plates 9. A coating box 11 is arranged on the upper end of the limiting plates 9. The photovoltaic panel is placed on the conveying rollers 8 of the workbench 1. The limiting plate 9 and the clamping roller 10 limit the photovoltaic panel from both sides and above. The drive mechanism of the conveying roller 8 is activated. Multiple conveying rollers 8 are linked by a chain to smoothly convey the photovoltaic panel forward. The first spring 5 ensures that the cleaning block 6 is in close contact with the surface of the photovoltaic panel to ensure the cleaning effect.

[0036] Please refer to Figure 1 and Figure 5 In a preferred embodiment of this utility model, the cleaning component includes a support frame 201 fixed to the upper end of the workbench 1, a water tank 202 and a water pump 203 fixed to the upper end of the support frame 201, and a connecting pipe 204 fixed to the outlet end of the water pump 203. The cleaning component also includes a diverter plate 205 fixed to the other end of the connecting pipe 204, a nozzle 206 fixed to the lower end of the diverter plate 205, an infrared sensor 207, and a collection box 208 slidably disposed at the lower end of the workbench 1. The side of the support frame 201 is inverted U-shaped, the multiple nozzles 206 are equidistantly distributed, and the collection box 208 is located on the cleaning block. Below 6, when the photovoltaic panel is detected by the infrared sensor 207, a signal is sent to the controller and the cleaning component is activated: the water pump 203 delivers the cleaning liquid in the water tank 202 to the diversion plate 205 through the connecting pipe 204. The diversion plate 205 diverts the liquid to multiple equally spaced nozzles 206. The nozzles 206 spray water onto the surface of the photovoltaic panel to rinse it, remove dust and soften stubborn stains, and prevent impurities from adhering to the surface of the photovoltaic panel and affecting the coating effect. As the photovoltaic panel moves, the cleaning liquid and impurities on the surface of the photovoltaic panel fall into the collection box 208 below for centralized treatment.

[0037] When in use, the photovoltaic panel is first placed on the conveyor roller 8 of the workbench 1. The L-shaped limiting plate 9 and the clamping roller 10 limit the photovoltaic panel from both sides and above. The drive mechanism of the conveyor roller 8 is started. Multiple conveyor rollers 8 are linked by a chain to smoothly convey the photovoltaic panel forward.

[0038] When the photovoltaic panel is detected by the infrared sensor 207, a signal is sent to the controller and the cleaning component is activated: the water pump 203 delivers the cleaning liquid in the water tank 202 to the diversion plate 205 through the connecting pipe 204. The diversion plate 205 diverts the liquid to multiple equally spaced nozzles 206. The nozzles 206 spray water onto the surface of the photovoltaic panel to rinse it, remove dust and soften stubborn stains.

[0039] Subsequently, the photovoltaic panel continues to be conveyed to the cleaning block 6, which wipes the surface of the photovoltaic panel to further remove residual stains. The first spring 5 ensures that the cleaning block 6 is in close contact with the surface of the photovoltaic panel to ensure the cleaning effect. As the photovoltaic panel moves, the cleaning liquid and impurities on the surface of the photovoltaic panel fall into the collection box 208 below. After that, the photovoltaic panel moves into the coating box 11 for coating operation.

[0040] After cleaning is completed, the second spring 104 is compressed by pulling the slider 103, causing the locking block 105 to disengage from the locking groove 107 of the rotating rod 106. Then, the fixing plate 2 is rotated so that the clean cleaning block 6 above faces down and contacts the photovoltaic panel. After that, the second spring 104 returns to its original position and drives the locking block 105 to engage with the corresponding locking groove 107, fixing the angle of the rotating rod 106. At this time, the used cleaning block 6 above can be disassembled and replaced during the cleaning process, thereby avoiding downtime and affecting normal processing efficiency.

[0041] Through the above steps, by pulling the slider 103 to compress the second spring 104, the locking block 105 is disengaged from the locking groove 107 of the rotating rod 106. Then, the fixing plate 2 is rotated so that the clean cleaning block 6 above is facing down and in contact with the photovoltaic panel. After that, the second spring 104 returns to its original position and drives the locking block 105 to engage with the corresponding locking groove 107, fixing the angle of the rotating rod 106. At this time, the used cleaning block 6 above can be disassembled and replaced during the cleaning process, thereby avoiding downtime and affecting normal processing efficiency. This solves the problem that due to the lack of a multi-module conversion structure, operators cannot safely access and replace the cleaning mechanism close to the moving parts during equipment operation, requiring equipment shutdown for replacement, which leads to a reduction in coating efficiency.

[0042] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations (e.g., variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.) will be conceived by those skilled in the art without actually departing from the scope and spirit of the claims.

[0043] Finally, it should be noted that the above embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A photovoltaic panel coating material application device, comprising a worktable (1); characterized in that: It also includes a support plate (101) fixed to the upper end of the workbench (1) and a cleaning component; a third groove (102) is provided through the front end of the support plate (101), a slider (103) is slidably provided on the inner wall of the third groove (102), a second spring (104) is fixed between the slider (103) and the bottom end of the inner wall of the support plate (101), a locking block (105) is fixed to the rear end of the second spring (104), a rotating rod (106) is rotatably provided between the two support plates (101), two locking grooves (107) are provided on the outer wall of the rotating rod (106), the two locking grooves (107) are symmetrically arranged, and the locking block (105) is adapted to the locking groove (107).

2. The photovoltaic panel coating material application device according to claim 1, characterized in that: The outer wall of the rotating rod (106) is provided with two fixed plates (2), and multiple first grooves (3) are opened on the inner side of the fixed plates (2). The inner wall of the first grooves (3) is provided with mounting plates (4).

3. The photovoltaic panel coating material application device according to claim 2, characterized in that: A first spring (5) is fixed between the mounting plate (4) and the inner wall of the first groove (3), and a cleaning block (6) is detachably provided on the inner wall of the mounting plate (4).

4. The photovoltaic panel coating material application device according to claim 1, characterized in that: The upper end of the workbench (1) is provided with a second trough (7). Multiple conveying rollers (8) are rotatably arranged on the inner wall of the second trough (7). The multiple conveying rollers (8) are connected to each other by a chain. Two limiting plates (9) are fixed to the upper end of the workbench (1). The limiting plates (9) are L-shaped. Multiple clamping rollers (10) are rotatably arranged on the top of the inner wall of the limiting plates (9). A coating box (11) is provided on the upper end of the limiting plates (9).

5. The photovoltaic panel coating material application device according to claim 1, characterized in that: The cleaning assembly includes a support frame (201) fixed to the upper end of the workbench (1), a water tank (202) and a water pump (203) fixed to the upper end of the support frame (201), and a connecting pipe (204) fixed to the outlet of the water pump (203).

6. The photovoltaic panel coating material application device according to claim 5, characterized in that: The cleaning assembly also includes a diverter plate (205) fixed to the other end of the connecting pipe (204), a nozzle (206) fixed to the lower end of the diverter plate (205), an infrared sensor (207), and a collection box (208) slidably disposed at the lower end of the workbench (1).

7. The photovoltaic panel coating material application device according to claim 6, characterized in that: The support frame (201) has an inverted U-shape on the side, and multiple nozzles (206) are evenly distributed. The collection box (208) is located below the cleaning block (6).

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