Ultrasonic spraying device for preparing large-area perovskite solar cell

Abstract

The utility model discloses an ultrasonic spraying device for preparing a large-area perovskite solar cell. The ultrasonic spraying device comprises a spraying system, an automatic feeding system and an electric control system, the spraying system comprises a spraying chamber, and an ultrasonic spray head assembly, a two-axis module mechanism and a solar cell panel conveying mechanism are arranged in the spraying chamber. The automatic feeding system comprises a feeding chamber; a self-extraction injection pump, a reaction kettle, a waste liquid recovery tank, a proportional valve, a switch valve and an auxiliary pipeline are arranged in the feeding chamber; the electric control system comprises an electric control chamber and an alarm system, a touch screen and a function button panel are arranged on the surface of the electric control chamber, and a motion module controller and related gas circuit elements are arranged in the electric control chamber. The surface spraying device has the advantages of being compact in structure, large in spraying area, good in spraying uniformity, low in material waste rate and the like, and can be widely applied to the technical field of surface spraying of large-area perovskite solar cells.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrasonic spraying devices, and in particular relates to an ultrasonic spraying device for preparing large-area perovskite solar cells. Background Art

[0002] Perovskite solar cells belong to the third generation of solar cells. They use perovskite-type organic metal halide semiconductors as light-absorbing materials. They have the characteristics of high efficiency, low cost, and flexibility. Compared with crystalline silicon cells, perovskite cells have broader development prospects in the field of photovoltaic power generation.

[0003] At present, the most widely used method for the existing perovskite is scraping or spin coating, but scraping or spin coating is difficult to deposit large-area, continuous perovskite films, and the existing scraping or spin coating efficiency is low, the material waste rate is 60-70%, and the spraying uniformity effect is also poor, so it is necessary to improve the spraying method in order to prepare efficient large-area perovskite solar cells and facilitate the commercial production of perovskite solar cells. The spraying of perovskite solar cells can effectively achieve efficient and uniform coating preparation by using an ultrasonic spraying system to accurately control the atomization and spraying of the coating material, improve the photoelectric conversion efficiency and stability of the battery, and have broad market application prospects. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model provides an ultrasonic spraying device for preparing large-area perovskite solar cells, which has the characteristics of compact structure, large spraying area, good spraying uniformity and low material waste rate, and can be widely used in the field of surface spraying technology of large-area perovskite solar cells.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an ultrasonic spraying device for preparing large-area perovskite solar cells, including a spraying system, an automatic feeding system and an electric control system; the spraying system includes a spraying chamber, and an ultrasonic nozzle assembly, a two-axis module mechanism and a solar cell panel conveying mechanism are arranged inside the spraying chamber; the automatic feeding system is connected to the spraying system, and the automatic feeding system includes a feeding chamber, and a self-sucking injection pump, a reaction kettle, a waste liquid recovery tank, a proportional valve, a switch valve and auxiliary pipelines are arranged inside the feeding chamber; the electric control system includes an electric control room and an alarm system, and a touch screen and a function button panel are arranged on the surface of the electric control room, and a motion module controller and related gas path components are arranged inside; the parameter operation of the spraying system and the automatic feeding system is controlled by the touch screen.

[0006] As an improvement of the utility model, the spraying room is a movable sealed box structure with supporting feet at the bottom.

[0007] As an improvement of the utility model, an exhaust duct is provided inside the spraying chamber, and the exhaust duct is connected to an exhaust fan for recovering diffused gas during the spraying process.

[0008] As an improvement of the utility model, the spraying room is a dust-free and low-oxygen environment for spraying.

[0009] As an improvement of the utility model, the spraying room is connected to two sets of left and right automatic feeding systems, and is internally provided with temperature and humidity detection equipment; the upper end of the front of the spraying room is provided with two large opening doors, and the lower end is provided with two small opening doors.

[0010] As an improvement of the utility model, the ultrasonic nozzle assembly includes a shell, an ultrasonic transducer is provided at the lower part of the shell, and a liquid interface, an air inlet interface and a cable interface are provided at the upper end. The high-frequency vibration generated by the ultrasonic nozzle assembly disperses the solution into small droplets and sprays them evenly on the surface of the workpiece.

[0011] As an improvement of the present invention, the two-axis module mechanism is a gantry YZ two-axis mechanism, including a Y group module and a servo motor and a Z axis module and a servo motor, which are responsible for completing the trajectory walking function of the nozzle during spraying.

[0012] As an improvement of the utility model, the solar panel transport mechanism includes a linkage roller module, a reduction motor, a photoelectric switch, an in-position limiting cylinder and an auxiliary structure; the solar panel transport mechanism is a solar panel transport mechanism, which is responsible for transporting the solar panel to the spraying position for spraying, and at the same time transporting it to the subsequent process after spraying is completed, completing the automatic transport walking function.

[0013] As an improvement of the utility model, the alarm system includes a grating alarm emergency stop device to prevent other people or objects from entering the spraying area during spraying; it also includes conventional alarm functions for insufficient materials and ultrasonic abnormalities. The alarm system is connected to the three-color alarm light at the top of the electrical control room.

[0014] As an improvement of the utility model, the touch screen is internally provided with operation control software, including the functions of spraying trajectory editing, feeding flow rate and flow control, ultrasonic frequency setting and roller module parameter setting.

[0015] The beneficial effects of the utility model are as follows: an ultrasonic spraying device for preparing large-area perovskite solar cells has the characteristics of compact structure, large spraying area, good spraying uniformity and low material waste rate; ultrasonic spraying of perovskite solar cells is achieved by adopting three parts, namely, a spraying system, an automatic feeding system and an electronic control system, so that the entire spraying device is more compact, and mobile installation and debugging are more convenient; a unique high-frequency vibration ultrasonic nozzle assembly structure is adopted to achieve better spraying uniformity, a larger spraying area, and more than 50% of material waste can be saved; a solar cell panel conveying mechanism is added to the spraying system to be responsible for conveying the solar cell panel to the spraying position for spraying, and at the same time, it is conveyed to the subsequent process after spraying is completed, so as to complete the automatic conveying and walking function, effectively improve the spraying efficiency, and improve the manual operation intensity; in addition, by setting an alarm system, it is prevented that other people or objects enter the spraying area during spraying, and at the same time, it has an alarm function for problems such as insufficient materials and ultrasonic abnormalities, thereby improving the stability of the spraying operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the ultrasonic spraying device for preparing large-area perovskite solar cells of the utility model;

[0017] Figure 2 This is a left view of the ultrasonic spraying device for preparing large-area perovskite solar cells according to the utility model;

[0018] Figure 3 It is a structural schematic diagram of an ultrasonic nozzle assembly in an ultrasonic spraying device for preparing a large-area perovskite solar cell according to the utility model;

[0019] Figure 4 The utility model is a schematic structural diagram of a two-axis module mechanism and a solar cell panel conveying mechanism in an ultrasonic spraying device for preparing a large-area perovskite solar cell.

[0020] In the figure: 1. Spraying room; 2. Feeding room; 3. Electric control room; 11. Ultrasonic nozzle assembly; 111. Housing; 112. Ultrasonic transducer; 113. Liquid interface; 114. Air inlet interface; 115. Cable interface; 12. Two-axis module mechanism; 121. Y-group module and servo motor; 122. Z-axis module and servo motor; 13. Solar panel transport mechanism; 131. Linkage roller module; 132. Photoelectric switch; 133. In-position limiting cylinder; 14. Support leg; 15. Moving pulley; 16. Exhaust duct; 17. Exhaust fan; 18. Large opening door; 19. Small opening door; 21. Self-sucking injection pump; 22. Reactor; 23. Waste liquid recovery tank; 31. Touch screen; 32. Function button panel; 33. Three-color alarm light. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Figure 1~2 As shown, an ultrasonic spraying device for preparing large-area perovskite solar cells includes a spraying system, an automatic feeding system and an electronic control system; the spraying system includes a spraying chamber 1, and an ultrasonic nozzle assembly 11, a two-axis module mechanism 12 and a solar panel conveying mechanism 13 are arranged inside the spraying chamber 1; the automatic feeding system is connected to the spraying system, and the automatic feeding system includes a feeding chamber 2, and a self-sucking injection pump 21, a reaction kettle 22, a waste liquid recovery tank 23, a proportional valve, a switch valve and auxiliary pipelines are arranged inside the feeding chamber 2; the electronic control system includes an electronic control room 3 and an alarm system, and a touch screen 31 and a function button panel 32 are arranged on the surface of the electronic control room 3, and a motion module controller and related gas path components are arranged inside; the parameter operation of the spraying system and the automatic feeding system is controlled by the touch screen 31.

[0022] Furthermore, the spraying room 1 is a movable sealed box structure with a support leg 14 at the bottom; specifically, there are four support legs 14, which are respectively located at the four corners of the spraying room 1, and the support legs 14 are height-adjustable, and a movable pulley 15 is provided on the side to facilitate the movement of the spraying room 1; further, an exhaust duct 16 is provided inside the spraying room 1, and the exhaust duct 16 is connected to an exhaust fan 17 for recovering diffused gas during the spraying process.

[0023] Furthermore, the spraying room 1 is a dust-free and low-oxygen environment for spraying, thereby ensuring that the spraying process will not be mixed with particulate pollutants, avoiding affecting the performance of perovskite solar cells; specifically, the spraying room 1 is connected to two left and right automatic feeding systems, and is internally provided with temperature and humidity detection equipment; the spraying room 1 is provided with two large opening doors 18 at the upper end of the front side, and two small opening doors 19 at the lower end, and the split opening doors facilitate the installation of internal electrical components and pipelines.

[0024] Furthermore, if Figure 3 As shown, the ultrasonic nozzle assembly 11 includes a shell 111, an ultrasonic transducer 112 is provided at the lower part of the shell 111, and a liquid interface 113, an air inlet interface 114 and a cable interface 115 are provided at the upper end. The high-frequency vibration generated by the ultrasonic nozzle assembly 11 disperses the solution into small droplets and sprays them evenly on the surface of the workpiece.

[0025] Furthermore, if Figure 4As shown, the two-axis module mechanism 12 is a gantry YZ two-axis mechanism, including a Y group module and a servo motor 121 and a Z axis module and a servo motor 122, and the Y group module and the servo motor 121 and the Z axis module and the servo motor 122 move up and down and forward and backward to cooperate with each other, and are responsible for completing the trajectory walking function of the nozzle during spraying; specifically, the solar panel conveying mechanism 13 includes a linkage roller module 131, a reduction motor, a photoelectric switch 132, an in-position limiting cylinder 133 and an auxiliary structure; the solar panel conveying mechanism 13 is a conveying mechanism for solar panels, which is responsible for conveying the solar panels to the spraying position for spraying, and at the same time conveying them to the subsequent process after spraying is completed, to complete the automatic conveying and walking function.

[0026] Furthermore, the alarm system includes a grating alarm emergency stop device to prevent other people or objects from entering the spraying area during spraying; it also includes conventional alarm functions for insufficient materials and ultrasonic abnormalities. The alarm system is connected to the three-color alarm light 33 at the top of the electrical control room 3, and the real-time alarm function of the spraying device is realized through the three-color alarm light 33.

[0027] Furthermore, the touch screen 31 is internally provided with operation control software, including the functions of spray trajectory editing, feed flow rate and flow control, ultrasonic frequency setting and roller module parameter setting; specifically, the touch screen 31 is an embedded liquid crystal panel structure, which is convenient for accurate display and adjustment of the parameters of the entire spray device.

[0028] The utility model relates to an ultrasonic spraying device for perovskite solar cells, which has the characteristics of compact structure, large spraying area, good spraying uniformity and low material waste rate. The greatest feature of the spraying device is that it adopts an ultrasonic precision spraying method and cooperates with automation to spray the solar panel, replacing conventional scraping or spin coating, with better spraying effect and lower energy consumption. Compared with scraping or spin coating, it adopts multi-nozzle simultaneous atomization spraying, which saves spraying time, improves production efficiency, and accurately controls the amount of perovskite solution sprayed on the surface of the solar panel. In addition, the ultrasonic spraying system makes the solution highly soluble and has good spraying uniformity. The independently developed control software can control the setting parameters of each component, so that each process is closely combined, and the transportation of perovskite solar cells is more convenient, thereby improving production efficiency.

[0029] Finally, it should be noted that the above examples are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above examples, and there are many variations. All variations that can be directly derived or associated with the content disclosed by a person skilled in the art from the present invention should be considered as the protection scope of the present invention.

Claims

1. An ultrasonic spraying device for preparing large-area perovskite solar cells, characterized in that: The invention comprises a spraying system, an automatic feeding system and an electric control system; the spraying system comprises a spraying chamber (1), wherein an ultrasonic nozzle assembly (11), a two-axis module mechanism (12) and a solar panel conveying mechanism (13) are arranged inside the spraying chamber (1); the automatic feeding system is connected to the spraying system, wherein the automatic feeding system comprises a feeding chamber (2), wherein a self-sucking injection pump (21), a reaction kettle (22), a waste liquid recovery tank (23), a proportional valve, a switch valve and auxiliary pipelines are arranged inside the feeding chamber (2); the electric control system comprises an electric control room (3) and an alarm system, wherein a touch screen (31) and a function button panel (32) are arranged on the surface of the electric control room (3), and a motion module controller and related gas path components are arranged inside the room; and the parameter operation of the spraying system and the automatic feeding system is controlled by the touch screen (31).

2. The ultrasonic spraying device for preparing large-area perovskite solar cells according to claim 1, characterized in that: The spray chamber (1) is a movable sealed box structure, with supporting feet (14) provided at the bottom.

3. The ultrasonic spraying device for preparing large-area perovskite solar cells according to claim 2, characterized in that: An exhaust duct (16) is provided inside the spraying room (1), and the exhaust duct (16) is connected to an exhaust fan (17).

4. The ultrasonic spraying device for preparing large-area perovskite solar cells according to claim 3, characterized in that: The spraying room (1) is a dust-free and low-oxygen environment for spraying.

5. The ultrasonic spraying device for preparing large-area perovskite solar cells according to claim 3, characterized in that: The spraying room (1) is connected to two sets of left and right automatic feeding systems and is provided with temperature and humidity detection equipment inside; the spraying room (1) is provided with two large opening doors (18) at the upper end of the front side and two small opening doors (19) at the lower end.

6. The ultrasonic spraying device for preparing large-area perovskite solar cells according to claim 1, characterized in that: The ultrasonic nozzle assembly (11) comprises a housing (111), an ultrasonic transducer (112) is provided at the lower part of the housing (111), and a liquid connection interface (113), an air inlet interface (114) and a cable interface (115) are provided at the upper end. The high-frequency vibration generated by the ultrasonic nozzle assembly (11) disperses the solution into small droplets and sprays them uniformly on the surface of the workpiece.

7. The ultrasonic spraying device for preparing large-area perovskite solar cells according to claim 1, characterized in that: The two-axis module mechanism (12) is a gantry YZ two-axis mechanism, comprising a Y group module and a servo motor (121), a Z axis module and a servo motor (122), and is responsible for completing the trajectory walking function of the spray head during spraying.

8. The ultrasonic spraying device for preparing large-area perovskite solar cells according to claim 1, characterized in that: The solar panel transport mechanism (13) comprises a linkage roller module (131), a reduction motor, a photoelectric switch (132), an in-position limiting cylinder (133) and an auxiliary structure; the solar panel transport mechanism (13) is a transport mechanism for solar panels, responsible for transporting the solar panel to a spraying position for spraying, and transporting the solar panel to a subsequent process after spraying is completed, thereby completing an automated transport walking function.

9. The ultrasonic spraying device for preparing large-area perovskite solar cells according to claim 1, characterized in that: The alarm system includes a grating alarm emergency stop device to prevent other people or objects from entering the spraying area during spraying; it also includes routine alarm functions for insufficient materials and ultrasonic abnormalities. The alarm system is connected to a three-color alarm light (33) at the top of the electric control room.

10. The ultrasonic spraying device for preparing large-area perovskite solar cells according to claim 1, characterized in that: The touch screen (31) is internally provided with operation control software, including functions of spraying trajectory editing, material supply flow rate and flow rate control, ultrasonic frequency setting and roller module parameter setting.

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