Perovskite solution coating apparatus and coating method

Abstract

The application discloses a perovskite solution coating device and a coating method. The device comprises a rack, a conveying mechanism arranged on the rack, a spraying mechanism arranged on the rack and used for spraying products on the conveying mechanism, and a heating device used for heating the sprayed products. The conveying mechanism comprises a linear guide rail arranged on the rack, a carrier plate slidingly arranged on the linear guide rail, a driving assembly fixedly arranged on the carrier plate and used for driving the carrier plate to move along the linear guide rail, a suction plate arranged on the carrier plate and used for sucking the products, and a limiting assembly arranged on four sides of the carrier plate and used for limiting the products. The suction plate is a metal suction plate, and a heating rod is arranged in the metal suction plate. The device can effectively realize the preheating of the glass, the structural design of the whole device can realize the rapid and stable conveying of the glass, and the working efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of coating equipment, in particular to a perovskite solution coating device and a coating method. BACKGROUND

[0002] The perovskite solution is generally coated on the photovoltaic composite glass to change the light conversion rate of the photovoltaic composite glass. Moreover, the stability of the perovskite solution is low, and the temperature of the glass lower than that of the perovskite solution in the coating state will affect the coating effect of the perovskite solution on the glass. Moreover, the existing coating equipment mostly uses screen printing or slot coating to coat the perovskite solution on the photovoltaic composite glass. However, the coating effect is not good by using the screen printing or slot coating method. In addition, the compatibility is low. On the other hand, in the prior art, the coating operation of the perovskite solution is usually carried out at room temperature without preheating the glass, and the stability of the perovskite solution is low, which will be affected by the external environment, and finally affect the quality of the perovskite coated photovoltaic glass produced.

[0003] For example, the Chinese patent with publication number CN218048730U discloses a perovskite solution large-area coating production line, which comprises a perovskite solution coating device, an infrared and ultraviolet preliminary setting device, a strong infrared and ultraviolet crystallization setting device, and a conveying line. The perovskite solution coating device is used to coat the perovskite solution on the photovoltaic composite glass. The infrared and ultraviolet preliminary setting device is used to dry and solidify the outer surface of the perovskite solution coating layer on the photovoltaic composite glass. The strong infrared and ultraviolet crystallization setting device is used to dry and crystallize the whole perovskite solution coating layer on the photovoltaic composite glass. The above-mentioned production line has a complex structure and cannot directly preheat the glass, so there are certain defects in the coating effect of the perovskite solution.

[0004] Therefore, it is necessary to provide a perovskite solution coating device and a coating method. SUMMARY

[0005] The perovskite solution coating device and the coating method provided by the present application effectively solve the problems of complex structure and poor coating effect of the existing coating device.

[0006] The technical solution adopted in this invention is: a perovskite solution coating device, including a frame, a conveying mechanism mounted on the frame, a spraying mechanism mounted on the frame for spraying the product on the conveying mechanism, and a heating device for heating the sprayed product. The conveying mechanism includes a linear guide rail mounted on the frame, a carrier plate slidably mounted on the linear guide rail, a driving component fixedly mounted on the carrier plate for driving the carrier plate to move along the linear guide rail, a suction plate mounted on the carrier plate for adsorbing the product, and a limiting component mounted on the four sides of the carrier plate for limiting the product. The suction plate is a metal suction plate, and a heating rod is disposed inside the metal suction plate.

[0007] Furthermore, the limiting assembly includes several limiting components with identical structures. Each limiting component includes a limiting strip disposed on one side of the carrier plate, a fixing plate disposed on the lower end of the other side of the carrier plate, a first cylinder disposed on the fixing plate, a vertical plate disposed at the output end of the first cylinder and located on the side of the carrier plate, a second plate horizontally disposed on the upper end of the vertical plate and extending into the carrier plate, a linear bearing disposed on the fixing plate, a guide post whose one end is fixedly connected to the vertical plate and sleeved in the linear bearing, and a first spring sleeved on the guide post. The two ends of the first spring abut against the vertical plate and the fixing plate, respectively.

[0008] Furthermore, the heating device includes a lifting heating cover, a mounting bracket mounted on the frame, and a lifting drive assembly mounted on the mounting bracket for driving the lifting heating cover. A vacuum nozzle is provided on the top of the lifting heating cover.

[0009] Furthermore, the lifting drive assembly includes a first assembly and a second assembly with identical structures located on both sides of the linear guide rail. The first assembly includes a second cylinder fixedly mounted on the frame, a lifting plate fixedly mounted on the output end of the second cylinder, a connecting plate for connecting to the side of the heating cover, a guide shaft with its two ends slidably connected to the lifting plate and the connecting plate respectively, and a second spring sleeved on the guide shaft. The two ends of the spring abut against the lifting plate and the connecting plate respectively. Both ends of the guide shaft are provided with limiting parts, which limit the guide shaft from disengaging from the connecting plate and from the lifting plate.

[0010] Furthermore, the spraying mechanism includes a fourth support mounted on the frame, several liquid storage tanks mounted on the fourth support, and ultrasonic nozzles corresponding to each liquid storage tank.

[0011] A coating method for a perovskite solution coating apparatus includes the following steps:

[0012] S1. Place the glass on the suction plate, limit the glass with the limiting component, then the suction plate adsorbs the glass, and then the heating rod heats up the suction plate to preheat the glass.

[0013] S2, the driving assembly drives the carrier plate to move along the linear guide rail below the spraying mechanism, and the ultrasonic nozzle of the spraying mechanism sprays the perovskite solution on the upper surface of the glass.

[0014] S3, the driving assembly drives the carrier plate to move along the linear guide rail below the heating device, the lifting driving assembly drives the lifting type heating cover to move down, so that the lifting type heating cover cooperates with the carrier plate to form a closed cavity, then the closed cavity is vacuumized by the vacuum nozzle under the action of the external vacuum pump, and then heating is performed, completing the coating of the perovskite solution on the glass.

[0015] The beneficial effects of the application are:

[0016] 1. The device can effectively preheat the glass, and the structure design of the entire device can realize rapid and stable conveying of the glass, effectively improving the work efficiency.

[0017] 2. The structure design and specific implementation of the limiting assembly can effectively position the glass and ensure sufficient buffering force during the positioning of the glass to prevent damage to the glass.

[0018] 3. The structure design of the heating device can make the perovskite solution in a vacuum state in the closed cavity before being coated on the glass, ensuring that there is no water vapor in the closed cavity, so that the coating effect of the perovskite solution and the glass is better. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The overall schematic diagram of the perovskite solution coating device provided by the embodiment of the application.

[0020] Figure 2 The schematic diagram of the conveying mechanism of the perovskite solution coating device provided by the embodiment of the application.

[0021] Figure 3 The schematic diagram of the conveying mechanism of the perovskite solution coating device provided by the embodiment of the application.

[0022] Figure 4 The Figure 3 The enlarged schematic diagram of the A area.

[0023] Figure 5 The schematic diagram of the heating device of the perovskite solution coating device provided by the embodiment of the application.

[0024] Figure 6 The Figure 5 The enlarged schematic diagram of the B area.

[0025] As shown in the figure: 1, rack; 2, conveying mechanism; 3, spraying mechanism; 4, heating device; 21, linear guide rail; 22, carrier plate; 23, driving assembly; 24, suction plate; 25, limiting assembly; 251, limiting strip; 252, fixed plate; 253, No. 1 cylinder; 254, vertical plate; 255, No. 2 plate; 256, linear bearing; 257, guide column; 258, No. 1 spring; 41, lifting heating cover; 42, mounting frame; 43, lifting driving assembly; 44, vacuum nozzle; 431, No. 2 cylinder; 432, lifting plate; 433, connecting plate; 434, guide shaft; 435, No. 2 spring; 31, fourth support; 32, liquid storage tank. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0027] As shown in the figure: Figure 1 , Figure 2 , Figure 3 The structure of the perovskite solution coating device provided by the embodiment of the present application includes a rack 1, and further includes a conveying mechanism 2 arranged on the rack 1, a spraying mechanism 3 arranged on the rack 1 and used for spraying products on the conveying mechanism 2, and a heating device 4 used for heating the sprayed products, the conveying mechanism 2 includes a linear guide rail 21 arranged on the rack 1, a carrier plate 22 slidingly arranged on the linear guide rail 21, a driving assembly 23 fixedly arranged on the carrier plate 22 and used for driving the carrier plate 22 to move along the linear guide rail 21, a suction plate 24 arranged on the carrier plate 22 and used for adsorbing products, and a limiting assembly 25 arranged on four sides of the carrier plate 22 and used for limiting the products, the suction plate 24 is a metal suction plate 24, and a heating rod is arranged in the metal suction plate 24.

[0028] In actual use, the glass is placed on the suction plate 24, then the limiting assembly 25 limits the glass, and then the suction plate 24 adsorbs the glass, and then the heating rod is warmed up to cause the suction plate 24 to be warmed up to preheat the glass, the driving assembly 23 drives the carrier plate 22 to move along the linear guide rail 21 to below the spraying mechanism 3, the spraying mechanism 3 sprays the perovskite solution on the upper surface of the glass, then the driving assembly 23 drives the carrier plate 22 to move along the linear guide rail 21 to below the heating device 4, and then the heating device 4 heats the glass to realize that the perovskite solution is coated on the glass.

[0029] In the above design, the glass can be effectively preheated, and the structural design of the whole device can realize the rapid and stable conveying of the glass, thereby effectively improving the work efficiency.

[0030] Specifically: as shown in the figure: Figure 2 , Figure 3 andFigure 4 As shown, the limiting assembly 25 includes several limiting components with the same structure. Each limiting component includes a limiting strip 251 disposed on one side of the carrier plate 22, a fixing plate 252 disposed on the lower end of the other side of the carrier plate 22, a first cylinder 253 disposed on the fixing plate 252, a vertical plate 254 disposed at the output end of the first cylinder 253 and located on the side of the carrier plate 22, a second plate 255 horizontally disposed on the upper end of the vertical plate 254 and extending into the carrier plate 22, a linear bearing 256 disposed on the fixing plate 252, a guide post 257 fixedly connected to the vertical plate 254 at one end and sleeved in the linear bearing 256, and a first spring 258 sleeved on the guide post 257. The two ends of the first spring 258 abut against the vertical plate 254 and the fixing plate 252 respectively.

[0031] In actual use, before the glass is placed on the suction plate 24, the first cylinder 253 drives the vertical plate 254 to move away from the carrier plate 22, so that there is enough space above the suction plate 24 for the glass to be placed. Then the glass is placed on the suction plate 24, and then the first cylinder 253 drives the vertical plate 254 to move towards the carrier plate 22. The spring is gradually compressed, and finally the second plate 255 and the limiting strip 251 abut against the two sides of the glass respectively.

[0032] In the above design, the structural design and specific implementation of the limiting component 25 can effectively position the glass and ensure sufficient buffering force during the glass positioning process to prevent damage to the glass.

[0033] Specifically: such as Figure 5 As shown, the heating device 4 includes a lifting heating cover 41, a mounting bracket 42 mounted on the frame 1, and a lifting drive assembly 43 mounted on the mounting bracket 42 for driving the lifting heating cover 41. A vacuum nozzle 44 is provided on the top of the lifting heating cover 41.

[0034] In actual use, after the glass is conveyed by the conveying mechanism 2 to the bottom of the heating device 4, the lifting drive assembly 43 drives the lifting heating cover 41 to move down, so that the lifting heating cover 41 and the carrier plate 22 form a sealed cavity. Then, under the action of the external vacuum pump, the vacuum nozzle 44 is used to evacuate the sealed cavity, and then heating is performed to complete the coating of perovskite solution on the glass.

[0035] The above design ensures that the sealed cavity is in a vacuum state before the perovskite solution is applied to the glass, guaranteeing that there is no water vapor inside the sealed cavity, thus resulting in a better coating effect between the perovskite solution and the glass.

[0036] Specifically: such as Figure 5As shown, the lifting driving assembly 43 includes a No. 1 assembly and a No. 2 assembly which are located on both sides of the linear guide rail 21 and are the same in structure, the No. 1 assembly includes a No. 2 cylinder 431 fixedly arranged on the rack 1, a lifting plate 432 fixedly arranged on the output end of the No. 2 cylinder 431, a connecting plate 433 used for connecting with the side of the lifting hood, a guide shaft 434 which is in sliding connection with the lifting plate 432 and the connecting plate 433 respectively at two ends, a No. 2 spring 435 sleeved on the guide shaft 434, the two ends of the spring are in abutment with the lifting plate 432 and the connecting plate 433 respectively, and the guide shaft 434 is provided with a limiting portion at two ends, which limits the guide shaft 434 from being separated from the connecting plate 433 and the guide shaft 434 from being separated from the lifting plate 432.

[0037] In actual use, the connecting plate 433 is connected with the lifting hood 41, then the No. 2 cylinder 431 drives the lifting plate 432 to lift, so that the lifting plate 432 drives the connecting plate 433 to lift synchronously through the guide shaft 434, after the lifting hood 41 contacts with the carrier plate 22, if the No. 2 cylinder 431 continues to drive, the No. 2 spring 435 is compressed.

[0038] In the above design, the structural design of the lifting driving assembly 23 can effectively prevent the lifting hood 41 from being driven by the No. 2 cylinder 431 in the process of moving down, and effectively avoid the damage of the lifting hood 41.

[0039] Specifically, as shown in the figure, Figure 1 As shown, the spraying mechanism 3 includes a fourth support 31 arranged on the rack 1, a plurality of liquid storage grooves 32 arranged on the fourth support 31, and an ultrasonic nozzle corresponding to each of the liquid storage grooves 32.

[0040] In actual use, when the glass is conveyed to the lower side of the spraying mechanism 3 by the conveying mechanism 2, the ultrasonic nozzle sprays the perovskite solution on the glass.

[0041] In the above design, by setting the nozzle of the spraying mechanism 3 as an ultrasonic nozzle, the spraying is more uniform, and the coating effect of the perovskite solution on the upper surface of the glass is better.

[0042] A coating method of a perovskite solution coating device, comprising the following steps:

[0043] S1, place the glass on the suction plate 24, the limiting assembly 25 limits the glass, then the suction plate 24 adsorbs the glass, and then the glass is preheated by the heating rod to cause the suction plate 24 to heat up.

[0044] S2, the driving assembly 23 drives the carrier plate 22 to move along the linear guide rail 21 to the lower side of the spraying mechanism 3, and the ultrasonic nozzle of the spraying mechanism 3 sprays the perovskite solution on the upper surface of the glass.

[0045] S3, the driving assembly 23 drives the carrier plate 22 to move along the linear guide rail 21 to below the heating device 4, the lifting driving assembly 43 drives the lifting type heating cover 41 to move downwards, so that the lifting type heating cover 41 cooperates with the carrier plate 22 to form a closed cavity, then the closed cavity is vacuumized by the vacuum nozzle 44 under the action of the external vacuum pump, then heating is carried out, and the perovskite solution is coated on the glass.

[0046] It should be understood that the above description is only a specific embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A perovskite solution coating apparatus, comprising a frame (1), characterized in that: It also includes a conveying mechanism (2) set on the frame (1), a spraying mechanism (3) set on the frame (1) for spraying the product on the conveying mechanism (2), and a heating device (4) for heating the sprayed product. The conveying mechanism (2) includes a linear guide rail (21) set on the frame (1), a carrier plate (22) slidably set on the linear guide rail (21), a driving component (23) fixedly set on the carrier plate (22) for driving the carrier plate (22) to move along the linear guide rail (21), a suction plate (24) set on the carrier plate (22) for adsorbing the product, and a limiting component (25) set on the four sides of the carrier plate (22) for limiting the product. The suction plate (24) is a metal suction plate (24), and a heating rod is provided inside the metal suction plate (24). The limiting assembly (25) includes several limiting components with the same structure. Each limiting component includes a limiting strip (251) disposed on one side of the carrier plate (22), a fixing plate (252) disposed on the lower end of the other side of the carrier plate (22), a first cylinder (253) disposed on the fixing plate (252), a vertical plate (254) disposed at the output end of the first cylinder (253) and located on the side of the carrier plate (22), a second plate (255) horizontally disposed on the upper end of the vertical plate (254) and extending into the carrier plate (22), a linear bearing (256) disposed on the fixing plate (252), a guide post (257) fixedly connected to the vertical plate (254) and sleeved in the linear bearing (256) at one end, and a first spring (258) sleeved on the guide post (257). The two ends of the first spring (258) abut against the vertical plate (254) and the fixing plate (252) respectively.

2. The perovskite solution coating apparatus according to claim 1, characterized in that: The heating device (4) includes a lifting heating cover (41), a mounting bracket (42) mounted on the frame (1), and a lifting drive assembly (43) mounted on the mounting bracket (42) for driving the lifting heating cover (41). A vacuum nozzle (44) is provided on the top of the lifting heating cover (41).

3. The perovskite solution coating apparatus according to claim 2, characterized in that: The lifting drive assembly (43) includes a first assembly and a second assembly with the same structure located on both sides of the linear guide rail (21). The first assembly includes a second cylinder (431) fixedly mounted on the frame (1), a lifting plate (432) fixedly mounted on the output end of the second cylinder (431), a connecting plate (433) for connecting to the side of the lifting heating cover (41), a guide shaft (434) with its two ends slidably connected to the lifting plate (432) and the connecting plate (433) respectively, and a second spring (435) sleeved on the guide shaft (434). The two ends of the spring abut against the lifting plate (432) and the connecting plate (433) respectively. The guide shaft (434) is provided with a limiting part at both ends. The limiting part restricts the guide shaft (434) from disengaging from the connecting plate (433) and from disengaging from the lifting plate (432).

4. The perovskite solution coating apparatus according to claim 1, characterized in that: The spraying mechanism (3) includes a fourth support (31) mounted on the frame (1), a plurality of liquid storage tanks (32) mounted on the fourth support (31), and ultrasonic nozzles corresponding to the liquid storage tanks (32).

5. A coating method using a perovskite solution coating apparatus, employing the perovskite solution coating apparatus according to any one of claims 1 to 4, characterized in that: Includes the following steps: S1. Place the glass on the suction plate (24), limit the glass with the limiting component (25), then the suction plate (24) adsorbs the glass, and then the heating rod heats up the suction plate (24) to preheat the glass. S2, the drive assembly (23) drives the carrier plate (22) to move along the linear guide rail (21) to below the spraying mechanism (3), and the ultrasonic nozzle of the spraying mechanism (3) sprays the perovskite solution onto the upper surface of the glass. S3. The drive assembly (23) drives the carrier plate (22) to move along the linear guide rail (21) to the bottom of the heating device (4). The lifting drive assembly (43) drives the lifting heating cover (41) to move down, so that the lifting heating cover (41) and the carrier plate (22) form a sealed cavity. Then, under the action of the external vacuum pump, the vacuum nozzle (44) is used to evacuate the sealed cavity, and then heating is performed to complete the coating of perovskite solution on the glass.

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