Photovoltaic glass self-cleaning coating uniform application device based on micro-nano spraying technology

Abstract

This invention relates to the field of photovoltaic glass processing technology, and in particular to a device for uniformly applying a self-cleaning coating to photovoltaic glass based on micro-nano spraying technology. The device includes a base on which a coating mechanism is mounted for applying a self-cleaning coating to the surface of photovoltaic glass. The coating mechanism includes: a housing assembly comprising a box fixed to the upper end of the base; and an execution assembly comprising a horizontal plate fixed to the rear end of the box. Several linkage carriages are horizontally slidably mounted on the upper end of the horizontal plate, and active carriages are horizontally slidably mounted on both the left and right sides of the upper end of the horizontal plate. A first nozzle and a second nozzle are mounted at the front end of each linkage carriage. Two long connecting rods are rotatably mounted on the top of each linkage carriage, and two short connecting rods are rotatably mounted on the top of each active carriage. The device adjusts the nozzle distribution to match the glass width through equidistant adjustment, avoiding spray overlap or omissions and ensuring uniform coating. It automatically switches between two nozzle spacings to adapt to different glass widths without requiring component replacement, thus improving production line compatibility and efficiency.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic glass processing technology, specifically to a device for uniformly applying a self-cleaning coating to photovoltaic glass based on micro-nano spraying technology. Background Technology

[0002] Photovoltaic glass is a crucial component of solar cell modules, and its surface properties directly affect the module's power generation efficiency and lifespan. Applying a self-cleaning coating to the surface of photovoltaic glass can endow it with hydrophobic, anti-fouling, and anti-reflective properties, reducing the impact of dust accumulation on light absorption, while also lowering the frequency of manual cleaning and maintenance costs. According to CN222842382U, a self-cleaning coating application device for photovoltaic panels is disclosed. This technology includes a frame with a sliding frame slidably mounted on it, a first drive module mounted on the frame, a roller frame hinged to the sliding frame, a rotating shaft rotatably mounted on the roller frame, a coating sponge fitted onto the coating roller, a storage tank on the frame containing a liquid pump, a liquid delivery pipe at the pump's outlet, a rotary joint connected to the liquid delivery pipe on the rotating shaft, several nozzles on the rotating shaft, a second drive module on the frame, and a controller on the frame. The first drive module, the liquid pump, and the second drive module are electrically connected to the controller. This technology offers advantages such as avoiding blind spots through an S-shaped trajectory, improving coating quality, automating the self-cleaning coating process, eliminating the need for workers to enter the construction area, reducing construction difficulty, and increasing construction efficiency. In existing photovoltaic glass spraying equipment, the nozzles are usually fixedly installed on the crossbeam, and their spacing cannot be adjusted according to the width of the glass to be processed. When it is necessary to switch to different width specifications of photovoltaic glass for production, the coating liquid sprayed by the nozzles located at the edge of the fixed-spacing nozzle array is prone to exceed the edge of the glass, resulting in waste of coating liquid and pollution of the internal environment of the cabinet. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a photovoltaic glass self-cleaning coating uniform application device based on micro-nano spraying technology. By adjusting the nozzle distribution to match the glass width, it avoids spray overlap or omissions and ensures uniform coating. The device automatically switches between two nozzle spacings to adapt to glass of different widths without the need to replace parts, thus improving production line compatibility and efficiency.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic glass self-cleaning coating uniform application device based on micro-nano spraying technology, comprising a base, wherein a coating mechanism is provided on the base for applying a self-cleaning coating to the surface of the photovoltaic glass, the coating mechanism comprising: Cabin assembly, including a housing fixed to the upper part of the base; The execution component includes a horizontal plate fixed to the rear end of the housing. Several linkage carriages are horizontally slidably mounted on the upper part of the horizontal plate. Active carriages are horizontally slidably mounted on both the left and right sides of the upper part of the horizontal plate. A first nozzle and a second nozzle are mounted on the front end of the linkage carriages. Two long connecting rods are rotatably mounted on the top of the linkage carriages. Two short connecting rods are rotatably mounted on the top of the active carriages, and the short connecting rods are pivotally connected to the adjacent long connecting rods. Synchronous pulleys are rotatably mounted on both the left and right sides of the upper end of the linkage carriages. A synchronous belt is installed between the two synchronous pulleys. The left and right active carriages are fixed to the front and rear ends of the synchronous belt, respectively. A servo motor is installed at the bottom of the horizontal plate to drive one of the synchronous pulleys to rotate. A limit frame is fixed in the middle of the upper part of the horizontal plate. A limit groove is opened inside the limit frame. Limit wheels are rotatably mounted at the pivot joints of the long connecting rods on the left and right sides in the middle, and the limit wheels are located inside the limit grooves.

[0005] Preferably, the chamber assembly further includes a collection hopper fixed to the bottom of the chamber, with a discharge port fixedly connected to the lower end of the collection hopper and an air vent opened on the side end of the collection hopper.

[0006] Preferably, the chamber assembly further includes a feed inlet at the front end of the chamber and a discharge outlet at the rear end of the chamber.

[0007] Preferably, the cabin assembly further includes a slot at the rear end of the cabin, and the front end of the linkage carriage extends into the interior of the cabin through the slot.

[0008] Preferably, the execution component further includes a first slotted photoelectric sensor and a second slotted photoelectric sensor installed on one side of the bottom of the cross plate, wherein a light-shielding plate is fixed to the rear end of one of the active carriages.

[0009] Preferably, the actuation component further includes a guide rail fixed to the top of the cross plate, and sliders are fixed to the bottom of both the linkage carriage and the active carriage, with the sliders slidably mounted on the guide rail.

[0010] Preferably, the coating mechanism further includes a wheeled conveyor line mounted on the upper end of the base.

[0011] Preferably, the first and second nozzles on the linkage carriage are arranged horizontally and staggered front to back.

[0012] This invention provides a device for uniformly applying a self-cleaning coating to photovoltaic glass based on micro-nano spraying technology. Compared with existing technologies, it has the following advantages: 1. By using a synchronous belt and synchronous pulley, the power of the servo motor is transmitted to each linkage carriage, so that all linkage carriages slide synchronously and maintain equal spacing. This ensures that the nozzles in working condition are evenly distributed in the width direction of the glass, avoiding uneven coating thickness caused by overlapping or separation of spray areas of adjacent nozzles, and effectively improving the uniformity of the coating.

[0013] 2. By using the first and second spray heads arranged in a staggered manner on the same linkage carriage, the two spray heads work alternately at two different spacings, enabling the coating mechanism to adapt to two width specifications of photovoltaic glass without changing the spray heads. This reduces downtime and manual operation when switching specifications, and improves production line compatibility and production efficiency.

[0014] 3. The active carriage drives the light-shielding plate to move. Two slotted photoelectric sensors detect the position of the light-shielding plate and send a positioning signal, so that the linkage carriage stops accurately at two working positions. This achieves precise control of the working position of the two types of nozzles, avoids nozzle deviation due to insufficient stroke, which affects the coating quality, and improves the positioning reliability and automation of the equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the front end of the coating mechanism in this invention; Figure 3 This is a schematic diagram of the rear end of the coating mechanism in this invention; Figure 4 This is a schematic diagram of the upper structure of the execution component in this invention; Figure 5 For the present invention Figure 4 A schematic diagram of the structure of part A in the middle; Figure 6 This is a schematic diagram of the lower end of the execution component in this invention.

[0016] In the diagram: 1. Base; 2. Coating mechanism; 21. Cabin assembly; 211. Box; 212. Collection hopper; 213. Discharge port; 214. Air outlet; 215. Feed inlet; 216. Discharge outlet; 217. Groove; 22. Actuation assembly; 221. Horizontal plate; 222. Linkage carriage; 223. Active carriage; 224. First nozzle; 225. Second nozzle; 226. Long connecting rod; 227. Short connecting rod; 228. Synchronous pulley; 229. Synchronous belt; 2210. Servo motor; 2211. Limiting frame; 2212. Limiting groove; 2213. Limiting wheel; 2214. First groove-type photoelectric sensor; 2215. Second groove-type photoelectric sensor; 2216. Light shield; 2217. Guide rail; 2218. Slider; 23. Wheeled conveyor line. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1 - Figure 6 This invention provides a technical solution: a photovoltaic glass self-cleaning coating uniform application device based on micro-nano spraying technology, comprising a base 1, a coating mechanism 2 disposed on the base 1 for applying a self-cleaning coating to the surface of the photovoltaic glass, the coating mechanism 2 comprising: The cabin assembly 21 includes a housing 211 fixed to the upper end of the base 1; The actuation component 22 includes a horizontal plate 221 fixed to the rear end of the housing 211. Several linkage carriages 222 are horizontally slidably mounted on the upper end of the horizontal plate 221. Active carriages 223 are horizontally slidably mounted on both the left and right sides of the upper end of the horizontal plate 221. A first nozzle 224 and a second nozzle 225 are mounted on the front end of each linkage carriage 222. Two long connecting rods 226 are rotatably mounted on the top of each linkage carriage 222. Two short connecting rods 227 are rotatably mounted on the top of each active carriage 223, and the short connecting rods 227 are pivotally connected to the adjacent long connecting rods 226. The linkage carriages 222 have several linkage carriages 224 and 225 mounted on both the left and right sides of the upper end. Each of the two synchronous pulleys 228 is rotatably mounted, and a synchronous belt 229 is installed between the two synchronous pulleys 228. The two active slides 223 on the left and right are fixed to the front and rear ends of the synchronous belt 229 respectively. A servo motor 2210 is installed at the bottom of the horizontal plate 221 and is used to drive one of the synchronous pulleys 228 to rotate. A limit frame 2211 is fixed in the middle of the upper end of the horizontal plate 221. A limit groove 2212 is opened inside the limit frame 2211. Limit wheels 2213 are rotatably mounted at the pivot joints of the long connecting rods 226 on the left and right sides in the middle, and the limit wheels 2213 are located inside the limit groove 2212.

[0019] In this embodiment, a servo motor 2210 drives one synchronous pulley 228 to cooperate with another synchronous pulley 228 to drive the synchronous belt 229 to move. When the synchronous belt 229 moves, it drives the active slide 223 fixed at both ends to slide horizontally in the opposite direction along the upper end of the horizontal plate 221. The active slide 223 pushes the long connecting rod 226 to swing around the pivot point through the short connecting rod 227. The long connecting rod 226 drives each linkage slide 222 to slide horizontally along the upper end of the horizontal plate 221. The limiting wheel 2213 rolls inside the limiting groove 2212, so that the pivot points of the long connecting rods 226 on the left and right sides can only move along the extension direction of the limiting groove 2212. With the middle limiting frame 2211 as the boundary, the linkage slide 222 on the left and right sides expand synchronously and equidistantly from the middle to the left and right sides during the sliding process, or retract synchronously and equidistantly from the left and right sides to the middle. The adjacent spacing of each linkage slide 222 remains consistent during the sliding process. When the linkage carriage 222 slides to the first spacing, the spacing between the first nozzles 224 on each linkage carriage 222 matches the width of the photovoltaic glass. The first nozzles 224 are in working state, and the second nozzles 225 are in non-working state. When the linkage carriage 222 slides to the second spacing, the spacing between the second nozzles 225 on each linkage carriage 222 matches the width of the photovoltaic glass. The second nozzles 225 are in working state, and the first nozzles 224 are in non-working state. The wheeled conveyor line 23 sends the photovoltaic glass into the box 211, and the spraying operation is performed by the nozzles in working state. By having all the linkage carriages 222 slide synchronously and maintain equal spacing, the nozzles in working condition are evenly distributed in the glass width direction. At the same time, the first nozzle 224 and the second nozzle 225 on the same linkage carriage 222 work alternately under the two spacing conditions, so that the coating mechanism 2 can adapt to photovoltaic glass of two width specifications without changing the nozzles.

[0020] Specifically, the cabin assembly 21 also includes a collection hopper 212 fixed to the bottom of the box 211. The lower end of the collection hopper 212 is connected to a discharge port 213, and the side end of the collection hopper 212 is provided with an air vent 214.

[0021] In this embodiment, during the coating process inside the housing 211, the suspended droplets settle into the collection hopper 212 under gravity, and after gathering, they are discharged from the discharge port 213. The external ventilation system draws air from the collection hopper 212 through the air outlet 214 to create negative pressure, which introduces the suspended droplets inside the housing 211 into the collection hopper 212. During the flow, the droplets are intercepted by the inner wall of the collection hopper 212 and flow into the discharge port 213 for discharge, thus preventing the unattached coating from accumulating inside the housing 211 and contaminating the surface of the photovoltaic glass, while also preventing the coating droplets from escaping outside the housing 211.

[0022] Specifically, the cabin assembly 21 also includes a feed inlet 215 at the front end of the box 211 and a discharge outlet 216 at the rear end of the box 211.

[0023] In this embodiment, the photovoltaic glass is carried by the wheeled conveyor line 23 and enters the interior of the box 211 through the feed port 215 at the front end of the box 211. After being coated inside the box 211, it is sent out through the discharge port 216 at the rear end of the box 211, so that the photovoltaic glass passes through the interior of the box 211 continuously in a single direction, thereby realizing continuous coating operation.

[0024] Specifically, the cabin assembly 21 also includes a slot 217 opened at the rear end of the box 211, and the front end of the linkage carriage 222 extends into the interior of the box 211 through the slot 217.

[0025] In this embodiment, when the linkage carriage 222 slides horizontally, its front end moves inside the slot 217. The slot 217 provides clearance space for the linkage carriage 222, avoiding motion interference between the linkage carriage 222 and the housing 211 when it moves horizontally; and isolates the transmission part of the execution component 22 outside the housing 211 to prevent paint droplets from adhering.

[0026] Specifically, the execution component 22 also includes a first slotted photoelectric sensor 2214 and a second slotted photoelectric sensor 2215 installed on one side of the bottom of the horizontal plate 221, and a light-shielding plate 2216 is fixed to the rear end of one of the active slides 223.

[0027] In this embodiment, when the active slide 223 slides, it drives the light-shielding plate 2216 to move. When the light-shielding plate 2216 moves to the first slotted photoelectric sensor 2214, it blocks the light path. The first slotted photoelectric sensor 2214 sends a positioning signal. At this time, the active slide 223 is located at the working position of the first nozzle 224. When the light-shielding plate 2216 moves to the second slotted photoelectric sensor 2215, it blocks the light path. The second slotted photoelectric sensor 2215 sends a positioning signal. At this time, the active slide 223 is located at the working position of the second nozzle 225. By detecting the position of the light-shielding plate 2216 through the two slotted photoelectric sensors, the servo motor 2210 is controlled to stop, so that the linkage slide 222 stops accurately at the two working positions.

[0028] Specifically, the execution component 22 also includes a guide rail 2217 fixed to the top of the horizontal plate 221, and sliders 2218 are fixed to the bottom of both the linkage carriage 222 and the active carriage 223, and the sliders 2218 are slidably mounted on the guide rail 2217.

[0029] In this embodiment, when the linkage carriage 222 and the active carriage 223 slide, the slider 2218 slides along the guide rail 2217. The sliding direction of the linkage carriage 222 and the active carriage 223 is constrained by the cooperation between the guide rail 2217 and the slider 2218, so as to ensure the consistency of the sliding direction of each carriage.

[0030] The specific coating mechanism 2 also includes a wheeled conveyor line 23 installed on the upper end of the base 1.

[0031] Specifically, the first nozzle 224 and the second nozzle 225 on the linkage carriage 222 are arranged to the left and right, and staggered front and back.

[0032] The working principle and usage process of this invention are as follows: First, before use, select the corresponding nozzle according to the width specification of the photovoltaic glass to be processed. The servo motor 2210 drives one of the synchronous pulleys 228 to cooperate with the other synchronous pulley 228 to drive the synchronous belt 229 to move. When the synchronous belt 229 moves, it drives the active slide 223 fixed at both ends to slide horizontally in the opposite direction along the upper end of the horizontal plate 221. The active slide 223 pushes the long connecting rod 226 to swing around the pivot point through the short connecting rod 227. The long connecting rod 226 drives each link The movable slide 222 slides horizontally along the upper end of the horizontal plate 221, and the limiting wheel 2213 rolls inside the limiting groove 2212, so that the pivot joints of the long connecting rods 226 on the left and right sides can only move along the extension direction of the limiting groove 2212. With the middle limiting frame 2211 as the boundary, the left and right linkage slides 222 expand synchronously and equidistantly from the middle to the left and right sides during the sliding process, or retract synchronously and equidistantly from the left and right sides to the middle. The adjacent spacing of each linkage slide 222 remains consistent during the sliding process. When the active slide 223 slides, it drives the light-shielding plate 2216 to move. When the light-shielding plate 2216 moves to the first slotted photoelectric sensor 2214, it blocks the light path. The first slotted photoelectric sensor 2214 sends a positioning signal. At this time, the active slide 223 is located at the working position of the first nozzle 224. When the light-shielding plate 2216 moves to the second slotted photoelectric sensor 2215, it blocks the light path. The second slotted photoelectric sensor 2215 sends a positioning signal. At this time, the active slide 223 is located at the working position of the second nozzle 225. The position of the light-shielding plate 2216 is detected by the two slotted photoelectric sensors, which control the servo motor 2210 to stop, so that the linkage slide 222 stops accurately at the two working positions. When the linkage carriage 222 slides to the first spacing, the spacing between the first nozzles 224 on each linkage carriage 222 matches the width of the photovoltaic glass, the first nozzles 224 are in working state, and the second nozzles 225 are in non-working state; when the linkage carriage 222 slides to the second spacing, the spacing between the second nozzles 225 on each linkage carriage 222 matches the width of the photovoltaic glass, the second nozzles 225 are in working state, and the first nozzles 224 are in non-working state. After being carried by the wheeled conveyor line 23, the photovoltaic glass enters the interior of the box 211 through the feed port 215 at the front end of the box 211. The coating operation is performed by the spray head in working state. After the coating is completed, it is sent out through the discharge port 216 at the rear end of the box 211, so that the photovoltaic glass passes through the interior of the box 211 continuously in one direction, realizing continuous coating operation. During the coating process, the droplets suspended inside the housing 211 settle into the collection hopper 212 under the action of gravity, and are discharged from the discharge port 213 after gathering. The external ventilation system draws air from the collection hopper 212 through the air outlet 214 to form a negative pressure, which introduces the droplets suspended inside the housing 211 into the collection hopper 212. During the flow, the droplets are intercepted by the inner wall of the collection hopper 212 and flow into the discharge port 213 for discharge, which avoids the accumulation of unadhered coating inside the housing 211 and contamination of the photovoltaic glass surface, and at the same time prevents the coating droplets from escaping outside the housing 211.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic glass self-cleaning coating uniform application device based on micro-nano spraying technology, comprising a base (1), characterized in that: The base (1) is provided with a coating mechanism (2) for applying a self-cleaning coating to the surface of the photovoltaic glass. The coating mechanism (2) includes: The cabin assembly (21) includes a housing (211) fixed to the upper end of the base (1); The execution component (22) includes a horizontal plate (221) fixed to the rear end of the housing (211). Several linkage carriages (222) are horizontally slidably installed on the upper end of the horizontal plate (221). Active carriages (223) are horizontally slidably installed on both the left and right sides of the upper end of the horizontal plate (221). A first nozzle (224) and a second nozzle (225) are installed at the front end of the linkage carriages (222). Two long connecting rods (226) are rotatably installed on the top of the linkage carriages (222). Two short connecting rods (227) are rotatably installed on the top of the active carriages (223), and the short connecting rods (227) are pivotally connected to the adjacent long connecting rods (226). The left and right sides of the upper end of the linkage carriages (222) are... A synchronous pulley (228) is rotatably mounted on each side, and a synchronous belt (229) is installed between the two synchronous pulleys (228). The two active slides (223) on the left and right sides are fixed to the front and rear ends of the synchronous belt (229) respectively. A servo motor (2210) is installed at the bottom of the horizontal plate (221) and is used to drive one of the synchronous pulleys (228) to rotate. A limit frame (2211) is fixed in the middle of the upper end of the horizontal plate (221). A limit groove (2212) is opened inside the limit frame (2211). A limit wheel (2213) is rotatably mounted at the pivot point of the long connecting rods (226) on the left and right sides in the middle, and the limit wheel (2213) is located inside the limit groove (2212).

2. The photovoltaic glass self-cleaning coating uniform application device based on micro-nano spraying technology according to claim 1, characterized in that: The cabin assembly (21) also includes a collection hopper (212) fixed to the bottom of the box (211), with a discharge port (213) connected to the lower end of the collection hopper (212) and an air vent (214) opened on the side end of the collection hopper (212).

3. The photovoltaic glass self-cleaning coating uniform application device based on micro-nano spraying technology according to claim 1, characterized in that: The cabin assembly (21) also includes a feed inlet (215) at the front end of the box (211) and a discharge outlet (216) at the rear end of the box (211).

4. The photovoltaic glass self-cleaning coating uniform application device based on micro-nano spraying technology according to claim 1, characterized in that: The cabin assembly (21) also includes a slot (217) at the rear end of the box (211), and the front end of the linkage carriage (222) extends into the interior of the box (211) through the slot (217).

5. The photovoltaic glass self-cleaning coating uniform application device based on micro-nano spraying technology according to claim 1, characterized in that: The execution component (22) also includes a first slotted photoelectric sensor (2214) and a second slotted photoelectric sensor (2215) installed on one side of the bottom of the cross plate (221), with a light-shielding plate (2216) fixed to the rear end of one of the active slides (223).

6. The photovoltaic glass self-cleaning coating uniform application device based on micro-nano spraying technology according to claim 1, characterized in that: The execution component (22) also includes a guide rail (2217) fixed to the top of the horizontal plate (221), and a slider (2218) is fixed to the bottom of both the linkage carriage (222) and the active carriage (223), and the slider (2218) is slidably mounted on the guide rail (2217).

7. The photovoltaic glass self-cleaning coating uniform application device based on micro-nano spraying technology according to claim 1, characterized in that: The coating mechanism (2) also includes a wheeled conveyor line (23) installed on the upper end of the base (1).

8. The photovoltaic glass self-cleaning coating uniform application device based on micro-nano spraying technology according to claim 1, characterized in that: The first nozzle (224) and the second nozzle (225) on the linkage carriage (222) are arranged left and right, and staggered front and back.

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