Novel air knife heating system for film forming and curing by slit coating technology

Abstract

The invention discloses a novel air knife heating system for film forming and curing through a slit coating technology, and relates to the technical field of perovskite batteries, the novel air knife heating system comprises an air knife body, the upper end of the air knife body is connected with a plurality of air inlets, the inner side of the air knife body is connected with an air uniformizing cavity, the surface of the air uniformizing cavity is provided with a plurality of air volume adjusting air channel openings, and one side of the air uniformizing cavity is provided with a plurality of air inlet channels; the output ends of the air inlets are matched with the position of the air inlet channel, one side of the output end of the air uniformizing cavity is connected with a first air knife plate, one side of the air knife body is connected with a second air knife plate, the first air knife plate is connected and matched with the second air knife plate, and an air outlet end is formed between the air outlet ends of the first air knife plate and the second air knife plate; the air knife is provided with four air inlets, air inlet and air uniformizing can be better and stably achieved, 14 air channel openings capable of adjusting the air volume are formed in the air knife, the air outlet uniformity of all positions of the long-size air knife in the using process is more stable, in addition, the air uniformizing cavity is formed in the air knife, and the perovskite coating technology is further optimized.

Description

Technical Field

[0001] The invention relates to the technical field of perovskite cells, and in particular to a novel air knife heating system for film forming and curing using a slit coating technology. Background Art

[0002] It is a type of perovskite, which includes titanium ore. The most commonly used is hybrid organic-inorganic lead or tin species, as the light-harvesting active layer. Slit coating is a highly scalable technology for rapid deposition of thin and uniform films, with high material utilization and low operating costs. Slit coating technology can apply liquid chemicals to substrates of various materials, such as glass, metal and polymers. In the processing and manufacturing of perovskite cells, the product is cured by slit coating technology. In the process of debugging the perovskite solution, it is necessary to use an air knife for operation;

[0003] However, the current wind knife product structure and shape are designed to produce wind uniformity of about 80%±10%, and the adjustable range is relatively small. During the process of debugging the perovskite solution, the range that can be modified is small, which affects the crystallization effect. For this reason, we propose a new wind knife heating system for film curing using slit coating technology. Summary of the invention

[0004] The main purpose of the present invention is to provide a novel air knife heating system for film formation and curing in slot coating technology to solve the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a new type of wind knife heating system for film forming and curing using slit coating technology, comprising a wind knife body, a plurality of air inlets connected to the upper end of the wind knife body, a uniform wind chamber connected to the inner side of the wind knife body, a plurality of air volume regulating air duct openings arranged on the surface of the uniform wind chamber, a plurality of air inlet channels arranged on one side of the uniform wind chamber, the output ends of the plurality of air inlets are adapted to the positions of the air inlet channels, a first wind knife plate is connected to one side of the output end of the uniform wind chamber, a second wind knife plate is connected to one side of the wind knife body, the first wind knife plate is connected to the second wind knife plate for cooperation, and an air outlet end is formed between the air outlet ends of the first wind knife plate and the second wind knife plate.

[0006] The air uniformity chamber and one side of the wind knife body are both connected with screw rods.

[0007] The outer sides of the plurality of air inlets are all threadedly connected with adjusting bolts.

[0008] The inner side of the wind blade body is connected to a fixing frame, and one end of the first wind blade plate and the second wind blade plate are both connected to the fixing frame.

[0009] The air inlets are arranged in four groups, and the four groups of air inlets are distributed at equal intervals. The air volume regulating air duct openings are arranged in twelve groups, and the twelve groups of air volume regulating air duct openings are distributed at equal intervals.

[0010] The wind knife heating system also includes an outer frame, a partition is connected to the inside of the outer frame, a heating tube is installed on one side of the partition, one end of the heating tube is connected to the uniform air chamber, a ventilation grille is arranged on the side surface of the outer frame, and the heating tube is adapted to the position of the ventilation grille.

[0011] The present invention has the following beneficial effects:

[0012] The novel air knife heating system for film-forming and curing by the slot coating technology of the present invention has four air inlets, and the air knife has a higher uniformity, which can ensure a uniformity of more than 90%.

[0013] The novel air knife heating system for film curing using the slot coating technology of the present invention has 14 air duct openings with adjustable air volume inside. The air outlet uniformity of each position of the long-sized air knife is more stable during use, and the adjustment uniformity is more stable compared to existing equipment.

[0014] The novel air knife heating system for film-forming and curing of the slit coating technology of the present invention is also equipped with an air knife heating module, which can further optimize the adjustment of the coating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the novel air knife heating system for film-forming and curing of the slot coating technology of the present invention;

[0016] Figure 2 It is a side view structural schematic diagram of a novel air knife heating system for film formation and curing using the slot coating technology of the present invention;

[0017] Figure 3 It is a schematic diagram of the outer frame structure of the novel air knife heating system for film-forming and curing by the slot coating technology of the present invention;

[0018] Figure 4 A novel air knife heating system for film curing of the slot coating technology of the present invention Figure 3 Sectional view of the CC plane.

[0019] In the figure: 1. wind knife body; 2. air volume adjustment airway opening; 3. uniform air chamber; 4. air inlet; 5. air inlet channel; 6. screw; 7. adjusting bolt; 8. first wind knife plate; 9. second wind knife plate; 10. air outlet; 11. fixing frame; 12. outer frame; 13. heating tube; 14. partition; 15. ventilation grille. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Embodiment 1:

[0024] Please refer to Figure 1-Figure 2 As shown: a new type of wind knife heating system for film curing using slit coating technology, comprising a wind knife body 1, a plurality of air inlets 4 are connected to the upper end of the wind knife body 1, a uniform wind chamber 3 is connected to the inner side of the wind knife body 1, a plurality of air volume regulating air duct openings 2 are arranged on the surface of the uniform wind chamber 3, a plurality of air inlet channels 5 are arranged on one side of the uniform wind chamber 3, the output ends of the plurality of air inlets 4 are adapted to the positions of the air inlet channels 5, a first wind knife plate 8 is connected to one side of the output end of the uniform wind chamber 3, a second wind knife plate 9 is connected to one side of the wind knife body 1, the first wind knife plate 8 is connected to the second wind knife plate 9, and an air outlet end 10 is formed between the air outlet ends of the first wind knife plate 8 and the second wind knife plate 9.

[0025] Screws 6 are connected to one side of the uniform air chamber 3 and the wind knife body 1 to connect and fix the uniform air chamber 3; adjusting bolts 7 are threadedly connected to the outer sides of several air inlets 4 to adjust and fix the use height of the air inlets 4; a fixing frame 11 is connected to the inner side of the wind knife body 1, and one end of the first wind knife plate 8 and the second wind knife plate 9 are connected to the fixing frame 11 to install and connect the first wind knife plate 8 and the second wind knife plate 9; 4 groups of air inlets 4 are provided, and the 4 groups of air inlets 4 are evenly spaced, and 12 groups of air volume regulating air duct openings 2 are provided, and the 12 groups of air volume regulating air duct openings 2 are evenly spaced, so that the air intake is more uniform and the air volume regulation is more stable.

[0026] Embodiment 2:

[0027] Please refer to Figure 3-Figure 4As shown: a new air knife heating system for film curing using slit coating technology, the air knife heating system also includes an outer frame 12, a partition 14 is connected to the inside of the outer frame 12, a heating tube 13 is installed on one side of the partition 14, and one end of the heating tube 13 is connected to the uniform air chamber 3 for air knife heating.

[0028] A ventilation grille 15 is provided on the side surface of the outer frame 12, and the heating pipe 13 is adapted to the position of the ventilation grille 15, thereby improving the operational stability of the equipment.

[0029] Working principle: First, air is taken in from the air inlet 4, and then guided to the uniform air chamber 3 through the air inlet channel 5, and then exhausted from the air outlet 10 formed between the first air blade plate 8 and the second air blade plate 9 on one side of the uniform air chamber 3. In this process, the intake air enters the uniform air chamber 3 after adjusting the air duct outlet, and the outlet is softer and more stable, which further optimizes the perovskite coating process;

[0030] In addition, the air knife heating system also includes a heating tube 13, which cooperates with the uniform air chamber 3 to enhance the use effect of the equipment.

[0031] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A new air knife heating system for film curing by slot coating technology, comprising an air knife body (1), characterized in that: The upper end of the wind blade body (1) is connected to a plurality of air inlets (4), the inner side of the wind blade body (1) is connected to a uniform wind chamber (3), the surface of the uniform wind chamber (3) is provided with a plurality of air volume regulating air duct openings (2), one side of the uniform wind chamber (3) is provided with a plurality of air inlet channels (5), the output ends of the plurality of air inlets (4) are adapted to the positions of the air inlet channels (5), one side of the output end of the uniform wind chamber (3) is connected to a first wind blade plate (8), one side of the wind blade body (1) is connected to a second wind blade plate (9), the first wind blade plate (8) is connected to the second wind blade plate (9), and an air outlet end (10) is formed between the air outlet ends of the first wind blade plate (8) and the second wind blade plate (9).

2. The novel air knife heating system for film curing by slit coating technology according to claim 1 is characterized by: The air knife heating system also includes an outer frame (12), the outer frame (12) is internally connected to a partition (14), a heating tube (13) is installed on one side of the partition (14), and one end of the heating tube (13) is connected to the uniform air chamber (3).

3. The novel air knife heating system for film curing by slit coating technology according to claim 1 is characterized by: The air uniformity chamber (3) and one side of the wind knife body (1) are both connected with a screw rod (6).

4. The novel air knife heating system for film curing by slit coating technology according to claim 1 is characterized by: The outer sides of the plurality of air inlets (4) are all threadedly connected with adjustment bolts (7).

5. The novel air knife heating system for film curing by slit coating technology according to claim 1 is characterized by: A fixing frame (11) is connected to the inner side of the wind blade body (1), and one end of each of the first wind blade plate (8) and the second wind blade plate (9) is connected to the fixing frame (11).

6. The novel air knife heating system for film curing by slit coating technology according to claim 2 is characterized by: A ventilation grille (15) is provided on the side surface of the outer frame (12), and the heating pipe (13) is adapted to the position of the ventilation grille (15).

7. The novel air knife heating system for film curing by slit coating technology according to claim 1 is characterized by: The air inlets (4) are provided in four groups, and the four groups of air inlets (4) are distributed at equal intervals; the air volume regulating air duct openings (2) are provided in twelve groups, and the twelve groups of air volume regulating air duct openings (2) are distributed at equal intervals.

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