Perovskite film coating device

Abstract

The utility model belongs to the technical field of perovskite thin film preparation, and particularly relates to a perovskite thin film coating device which comprises an unwinding roller, a coating piece and a winding roller used for winding a perovskite thin film, and the two ends of the perovskite thin film are wound on the unwinding roller and the winding roller respectively. The coating piece is arranged above a perovskite thin film conveying route and used for coating, and the drying device is arranged between the coating piece and the winding roller; the drying device comprises a shell, the top of the shell is provided with a hot air source distribution box communicated with an external hot air source, the shell is internally provided with a plurality of drying boxes, the plurality of drying boxes are arranged in an up-down layered mode, and the perovskite thin film sequentially penetrates through the plurality of drying boxes. The hot air source distribution box communicates with the multiple drying boxes through multiple conveying pipelines, hot air is conveyed into each drying box, and the perovskite thin films in the drying boxes are dried.

Description

Technical Field

[0001] The utility model belongs to the technical field of perovskite film preparation, and in particular relates to a perovskite film coating device. Background Art

[0002] Perovskites are generally cubic or octahedral in shape, shiny, and light to brown in color. They can be used to refine titanium, niobium and rare earth elements, but they are only worth mining when they are gathered in large quantities. Perovskite films are widely used in solar cells, LEDs and other fields. The current preparation methods mainly include solution method, vapor deposition method, etc., among which the solution method is currently the most commonly used preparation method. The solution method forms a coating by mixing powder with a solvent, and uses coating technology to evenly coat the coating on the substrate, and forms a perovskite film through processes such as drying and sintering. The existing equipment for preparing perovskite films by the solution method generally uses roll coating or spin coating technology.

[0003] The Chinese patent with application number CN202321685423.2 discloses a perovskite film coating device, including an operating table, one end of the operating table is equipped with an unwinding roller, the other end of the operating table is equipped with a winding roller, the upper part of the operating table is provided with a film body, the two ends of the film body are respectively wound on the unwinding roller and the winding roller, an electric push rod is installed on the upper part of the operating table, a fixed plate is installed on the output end of the electric push rod, a coating assembly is installed on the lower part of the fixed plate, both sides of the fixed plate are fixedly connected with a first fixed block, the upper part of the film body is provided with a first pressing roller, the two ends of the first pressing roller are respectively rotatably connected to the corresponding first fixed block, and the lower part of the film body is provided with two second pressing rollers. The utility model can tighten the film body so that the film body is in a taut state during the coating process, avoiding uneven coating, ensuring product quality, and reducing unnecessary losses.

[0004] However, the working performance of the existing perovskite film coating equipment is not stable enough. The drying effect of the perovskite film after coating is poor by only setting up a simple drying oven. In this regard, we have improved and designed a perovskite film coating device. Utility Model Content

[0005] In view of the above-mentioned deficiencies existing in the prior art, the utility model provides a perovskite thin film coating device to solve the above-mentioned problems in the background technology.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A perovskite film coating device, comprising an unwinding roller, a coating member and a winding roller for winding the perovskite film, wherein two ends of the perovskite film are respectively wound on the unwinding roller and the winding roller, the coating member is arranged above the perovskite film transmission route for coating, and further comprising a drying device, wherein the drying device is arranged between the coating member and the winding roller;

[0008] The drying device includes a shell, a hot air source distribution box connected to an external hot air source is arranged on the top of the shell, and a plurality of drying boxes are arranged in layers up and down. The perovskite film passes through the plurality of drying boxes in sequence. The hot air source distribution box is connected to the plurality of drying boxes through a plurality of conveying pipes, respectively, to convey hot air into each drying box, so as to dry the perovskite film in the drying box.

[0009] By adopting the above-mentioned structural design, the perovskite film coating device retracts and releases the perovskite film through the unwinding roller and the winding roller, so that the perovskite film passes through the coating part and the drying device in turn for coating and feeding, and the drying process forms the perovskite film. The drying device in this device transports the external hot air source to the hot air source distribution box, distributes the hot air to multiple drying boxes through the hot air source distribution box, and dries the perovskite film in the drying box. By setting up multiple drying boxes distributed up and down, it is equivalent to increasing the distance traveled by the perovskite film when drying, so that the perovskite film can be fully dried, thereby ensuring the drying quality of the perovskite film while shortening the length of the perovskite film coating device, reducing the floor space, and facilitating promotion.

[0010] Furthermore, the hot air source distribution box is formed by two boxes that are sealed and connected, and an air inlet port is provided at one end of one of the boxes, and the air inlet port is connected to the hot air source through a pipeline.

[0011] Furthermore, there are three drying boxes, and a support frame is provided between the upper and lower drying boxes, and the support frame is fixedly connected to the inner wall of the outer shell.

[0012] Furthermore, the drying box is a box structure with openings at both ends, and auxiliary rollers are installed at the left and right ends of the drying box, and the perovskite film is wound on the auxiliary rollers.

[0013] Furthermore, a temperature sensor is installed inside the hot air source distribution box.

[0014] Furthermore, the drying device also includes a frame, the shell is fixedly connected to the upper part of the frame, and moving wheels are installed at the lower part of the frame.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The perovskite film coating device retracts and releases the perovskite film through an unwinding roller and a winding roller, so that the perovskite film passes through a coating member and a drying device in turn for coating and feeding, and a drying process to form a perovskite film. The drying device in the device transports an external hot air source to a hot air source distribution box, and distributes the hot air to a plurality of drying boxes through the hot air source distribution box to dry the perovskite film in the drying box. By setting a plurality of drying boxes distributed up and down, it is equivalent to increasing the distance traveled by the perovskite film during drying, so that the perovskite film can be fully dried, thereby ensuring the drying quality of the perovskite film while shortening the length of the perovskite film coating device, reducing the floor space, and facilitating promotion;

[0017] 2. The bottom of the drying device of the perovskite film coating device is equipped with moving wheels with foot brakes to facilitate the position adjustment of the drying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A simplified diagram of the components of a perovskite film coating device of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of a drying device in an embodiment of a perovskite film coating device of the utility model (viewing angle 1);

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of a drying device in an embodiment of a perovskite thin film coating device of the utility model (viewing angle 2);

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of a drying device in an embodiment of a perovskite film coating device of the utility model (viewing angle 3);

[0022] The reference numerals in the drawings of the specification include:

[0023] Unwinding roller (1), winding roller (2), coating member (3), drying device (4), perovskite film (5), auxiliary roller (6),

[0024] A frame (41), a moving wheel (411), a housing (42), a hot air source distribution box (43), a box body (431), an air inlet port (432), a temperature sensor (433), a conveying pipeline (44), a drying box (45), and a support frame (46). DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between 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.

[0029] Embodiment 1:

[0030] like Figure 1-4As shown, the utility model. Specifically, a perovskite film coating device includes a discharge roller 1, a coating member 3 and a winding roller 2 for winding the perovskite film 5, the two ends of the perovskite film 5 are respectively wound on the discharge roller 1 and the winding roller 2, the coating member 3 is arranged above the transmission route of the perovskite film 5 for coating, and also includes a drying device 4, the drying device 4 is arranged between the coating member 3 and the winding roller 2; the drying device 4 includes a shell 42, the top of the shell 42 is provided with a hot air source distribution box 43 connected to an external hot air source, and the shell 42 is provided with a plurality of drying boxes 45 inside, and the plurality of drying boxes 45 are arranged in layers up and down, and the perovskite film 5 passes through the plurality of drying boxes 45 in sequence, and the hot air source distribution box 43 is respectively connected to the plurality of drying boxes 45 through a plurality of conveying pipes 44, and hot air is conveyed into each drying box 45 to dry the perovskite film 5 in the drying box 45. The perovskite film coating device retracts and releases the perovskite film 5 through the unwinding roller 1 and the winding roller 2, so that the perovskite film 5 passes through the coating part 3 and the drying device 4 in turn to be coated and fed, and the drying process forms the perovskite film. The drying device 4 in the device transports the external hot air source to the hot air source distribution box 43, and distributes the hot air to multiple drying boxes 45 through the hot air source distribution box 43 to dry the perovskite film in the drying box 45. By setting up multiple drying boxes 45 distributed up and down, it is equivalent to increasing the distance traveled by the perovskite film 5 during drying, so that the perovskite film 5 can be fully dried, thereby ensuring the drying quality of the perovskite film 5 while shortening the length of the perovskite film coating device, reducing the floor space, and facilitating promotion.

[0031] In this example, the hot air source distribution box 43 is formed by sealingly connecting two boxes, one end of which is provided with an air inlet port 432, which is connected to the hot air source through a pipeline. The air inlet port 432 of the hot air source distribution box 43 is connected to the hot air source through a pipeline, and the external dry hot air is transported to the hot air source distribution box 43. It is noted that the hot air source can be obtained by a gas heater and a hot air blower, etc., so it is not repeated here.

[0032] In this example, there are three drying boxes 45 , and a support frame 46 is disposed between the upper and lower drying boxes 45 . The support frame 46 is fixedly connected to the inner wall of the outer shell 42 . The perovskite film 5 is guided out from the unwinding roller 1 and coated by the coating part 3. It is to be noted that the coating part 3 can adopt the existing well-known technology, specifically, it can be realized by spraying with a nozzle, so it is not repeated here. The perovskite film 5 after spraying is opened to enter the drying device 4. Specifically, the perovskite film 5 first enters the top drying box 45, and then passes through the lower drying box 45 in turn under the guidance of the auxiliary roller 6, and then is wound on the winding roller 2. Since the hot air source distribution box 43 and the conveying pipeline 44 convey the hot air to different drying boxes 45 respectively, it is ensured that the perovskite film 5 can be dried when passing through each drying box 45, thereby increasing the drying time of the perovskite film 5, so that the perovskite film 5 is fully dried. Compared with the drying box in the background technology, this device can shorten the length of the perovskite film coating device while ensuring the drying quality of the perovskite film 5, reduce the floor space, and facilitate promotion.

[0033] In this example, the drying box 45 is a box structure with openings at both ends. Auxiliary rollers 6 are installed at the left and right ends of the drying box 45 , and the perovskite film 5 is wound around the auxiliary rollers 6 .

[0034] In this example, a temperature sensor 433 is installed inside the hot gas source distribution box 43 .

[0035] In this example, the drying device 4 further includes a frame 41 , a housing 42 is fixedly connected to the upper portion of the frame 41 , and a moving wheel 411 is installed at the lower portion of the frame 41 .

[0036] Working principle: The perovskite film 5 is guided out from the unwinding roller 1 and coated by the coating part 3. It is to be noted that the coating part 3 can adopt the existing well-known technology, specifically, it can be realized by spraying with a nozzle, so it is not repeated here. The perovskite film 5 after spraying is opened to enter the drying device 4. Specifically, the perovskite film 5 first enters the top drying box 45, and then passes through the lower drying box 45 in turn under the guidance of the auxiliary roller 6, and then is wound on the winding roller 2. Since the hot air source distribution box 43 and the conveying pipeline 44 convey the hot air to different drying boxes 45 respectively, it is ensured that the perovskite film 5 can be dried when passing through each drying box 45, thereby increasing the drying time of the perovskite film 5, so that the perovskite film 5 is fully dried. Compared with the drying box in the background technology, the device can improve the drying effect of the perovskite film 5 while shortening the length of the perovskite film coating device, reducing the floor space, and facilitating promotion.

[0037] The above are only embodiments of the utility model, and the circuits, electronic components and modules involved are all prior art, which can be fully implemented by those skilled in the art. It is needless to say that the content protected by this application does not involve improvements to software and methods. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the prior art in the field, and have the ability to apply conventional experimental means before the date. Ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A perovskite film coating device, comprising an unwinding roller (1), a coating member (3) and a winding roller (2) for winding a perovskite film (5), wherein two ends of the perovskite film (5) are respectively wound on the unwinding roller (1) and the winding roller (2), and the coating member (3) is arranged above the conveying route of the perovskite film (5) for coating, characterized in that: It also comprises a drying device (4), wherein the drying device (4) is arranged between the coating member (3) and the winding roller (2); The drying device (4) comprises an outer shell (42), a hot air source distribution box (43) connected to an external hot air source is arranged on the top of the outer shell (42), a plurality of drying boxes (45) are arranged inside the outer shell (42), the plurality of drying boxes (45) are arranged in layers up and down, the perovskite film (5) passes through the plurality of drying boxes (45) in sequence, the hot air source distribution box (43) is connected to the plurality of drying boxes (45) respectively through a plurality of conveying pipes (44), and hot air is conveyed into each drying box (45) to dry the perovskite film (5) in the drying box (45).

2. A perovskite thin film coating device as claimed in claim 1, characterized in that: The hot air source distribution box (43) is formed by sealingly connecting two boxes, one end of which is provided with an air inlet port (432), and the air inlet port (432) is connected to the hot air source through a pipeline.

3. A perovskite thin film coating device as claimed in claim 1, characterized in that: There are three drying boxes (45), and a support frame (46) is provided between the upper and lower drying boxes (45), and the support frame (46) is fixedly connected to the inner wall of the outer shell (42).

4. A perovskite thin film coating device as claimed in claim 1, characterized in that: The drying box (45) is a box structure with openings at both ends. Auxiliary rollers (6) are installed at the left and right ends of the drying box (45), and the perovskite film (5) is wound on the auxiliary rollers (6).

5. A perovskite thin film coating device as claimed in claim 1, characterized in that: A temperature sensor (433) is installed inside the hot air source distribution box (43).

6. A perovskite thin film coating device as claimed in claim 1, characterized in that: The drying device (4) further comprises a frame (41), the housing (42) is fixedly connected to the upper part of the frame (41), and the lower part of the frame (41) is provided with moving wheels (411).

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