A large-area perovskite solar cell preparation device

Abstract

The invention discloses a large-area perovskite solar cell preparation device, including a square shell and a glue dripping device, a fixed component, an auxiliary component and a driven component arranged in the shell, wherein the glue dripping device includes a bracket, a glue storage tank, a glue dripping head and a heat light lamp; the auxiliary component includes a sleeve rod, a disc, a toggle rod, a rotating rod, a spring A and a slide rod, and the toggle rod evenly spreads the precursor solution dripped on the top of the substrate; the fixed component includes an electric push rod, a support plate, a slide groove is provided on the top of the support plate, and a placement plate and a spring B for placing the substrate are slidably installed in the slide groove, one end of the spring B is connected to the placement plate, and vertical baffles are provided on the left and right edges of the placement plate, and the inner sides of the left and right baffles are symmetrically provided with fixing units for fixing the substrate; the driven component can shake the precursor solution located on the top of the substrate to further improve the effect of glue coating. The preparation device of the invention avoids the problem of uneven coating of the precursor solution on the substrate when preparing large-area batteries.

Description

Technical Field

[0001] The invention relates to the technical field of solar cells, in particular to a large-area perovskite solar cell preparation device. Background Art

[0002] The photoelectric conversion efficiency of perovskite solar cells has increased from 3.8% to 24.2% in 10 years, and has industrial value. However, most of the preparation methods of perovskite solar cells in current experiments, especially those with a photoelectric conversion efficiency of more than 20%, are mostly one-step anti-solvent method, two-step spin coating method, etc.

[0003] In the preparation process of perovskite solar cells, it is necessary to spin-coat the precursor solution on the surface of a substrate rotating at a high speed to form a thin film, and then place the spin-coated thin film on a hot stage for heating. At present, when the precursor solution is prepared, coated and dried, the precursor solution is directly dripped on the substrate, and then the coated precursor solution is transferred to the drying process. The coated precursor solution is uneven on the substrate, resulting in the overall processed large-area perovskite solar cell finished product quality not reaching the ideal state and poor quality. For this reason, the present invention proposes a large-area perovskite solar cell preparation device. Summary of the invention

[0004] The purpose of the present invention is to provide a large-area perovskite solar cell preparation device to address the problem of uneven coating of a precursor solution on a substrate when preparing large-area perovskite solar cells in the existing perovskite solar cell preparation method.

[0005] The large-area perovskite solar cell manufacturing device provided by the present invention comprises: a square housing, a glue dripping device and auxiliary components arranged on the top of the square housing, and a fixing component arranged on the bottom of the square housing for fixing the substrate. A door that can be opened and closed is arranged on one side of the square housing.

[0006] Among them, the glue dropping device includes a bracket, a glue storage tank, a glue dropping head and a heat light; the glue storage tank is located at the top outside the square shell, the top of the bracket is fixed to the top surface inside the square shell, the heat light is fixed at the bottom of the bracket, the glue dropping head penetrates the top surface of the square shell and the bracket and is fixed to the square shell and the bracket, and the top of the glue dropping head is connected to the glue storage tank.

[0007] The auxiliary component includes a sleeve rod, the top of which is fixed to the bottom of the bracket; a disc is rotatably arranged at the bottom of the sleeve rod, a toggle rod is fixed to the edge of the disc, and a rotating rod is vertically arranged inside the sleeve rod; the rotating rod passes through the bottom of the sleeve rod and the disc and extends to the outside of the sleeve rod, the disc can move up and down along the rotating rod and rotate with the rotating rod; a spring A is sleeved on the rotating rod outside the sleeve rod, the top of the spring A is fixed to the disc, and the bottom of the spring A is fixed to the rotating rod; a sliding rod is fixed on the inner wall surface of the sleeve rod, a spiral sliding groove is opened on the upper surface of the rotating rod, and the front end of the sliding rod is slidably installed in the sliding groove of the rotating rod; when the rotating rod moves up and down, the sliding rod slides in the sliding groove of the rotating rod, causing the rotating rod to rotate, and the rotating rod rotates with the disc, thereby driving the toggle rod to rotate, and the toggle rod is used to evenly apply the precursor solution on the top of the substrate.

[0008] The fixing assembly includes an electric push rod fixed to the bottom surface of the square shell, and a fixing support plate on the top of the electric push rod. A slide groove is provided on the top of the support plate. A placement plate and a spring B for placing the substrate are slidably installed in the slide groove. One end of the spring B is connected to the placement plate. Vertical baffles are provided on the left and right edges of the placement plate. Fixing units for fixing the substrate are symmetrically arranged on the inner sides of the left and right baffles.

[0009] The fixing unit comprises a slider which penetrates the baffle plate horizontally and can slide up and down, a push rod which can slide left and right is arranged inside the slider, a telescopic plate which is perpendicular to the push rod is fixedly installed on the front end of the push rod located on the inner side of the placing plate, a spring C is sleeved on the push rod between the telescopic plate and the slider, and one end of the spring C is fixed on the slider; an inner groove is arranged on the lower half of the telescopic plate, and the telescopic plate is sleeved on the supporting plate in a manner that can move up and down through the inner groove, and the bottom of the supporting plate is located on the placing plate; the bottom of the slider located on the inner side of the placing plate is hinged with the top of the support rod, and the bottom end of the support rod is hinged to the moving block, and the moving block is located on the placing plate; when the substrate is inserted between the two telescopic plates, the substrate pushes the telescopic plate to move in the direction close to the baffle plate, and under the action of the spring C, the two telescopic plates clamp the substrate; and when the telescopic plate moves, the supporting plate also pushes the moving block to move in the direction close to the baffle plate, and the moving block pushes the slider to move upward through the support rod, and the slider drives the telescopic plate to move upward through the push rod, and the telescopic plate moves upward with the substrate for a distance, so as to fix the substrate and facilitate the gluing operation.

[0010] Preferably, the large-area perovskite solar cell preparation device further comprises a driven component arranged on the inner wall of the square shell, the driven component is located on the side away from the spring B, the driven component is located below the auxiliary component, and is higher than the lowest position of the placement plate; the driven component comprises a fixed rod arranged horizontally and fixed at one end on the inner wall of the square shell, the other end of the fixed rod is hinged to the push rod, a torsion spring is arranged at the top of the connection between the push rod and the fixed rod, the two ends of the torsion spring are respectively connected to the push rod and the fixed rod, a fixed block is installed at the bottom of the front end of the fixed rod, the fixed block is used to prevent the push rod from rotating downward, so that the push rod can only rotate upward with the hinge point as the center of the circle. The top of the front end of the push rod is arranged as a downward bevel.

[0011] It is further preferred that the driven components include a plurality of driven components, and all driven components are located at different heights of the inner wall of the square shell and are located on a vertical line.

[0012] Compared with the prior art, the present invention is beneficial in that:

[0013] (1) The large-area perovskite solar cell preparation device of the present invention has auxiliary components and glue dripping devices. When the substrate is coated with glue, the toggle rod can rotate with the disc to evenly spread the precursor solution dripped on the top of the substrate, thereby avoiding uneven coating of the precursor solution on the substrate, resulting in the overall processed large-area perovskite solar cell product quality not reaching the ideal state and poor quality.

[0014] (2) The large-area perovskite solar cell preparation device has a fixing component. After the substrate is fixed, the telescopic plate moves upward with the substrate for a certain distance to fix the substrate, which is convenient for gluing. A rubber pad is provided on one side of the telescopic plate close to the center of the placement plate, so that the substrate will not be damaged when the substrate is fixed.

[0015] (3) The large-area perovskite solar cell preparation device has a driven component. When the placement plate moves downward, the placement plate is pressed against the oblique surface of the top right side of the push rod and is pushed to the right by the push rod. When the placement plate is no longer pressed, the placement plate is reset to the left under the action of spring B, and the placement plate is shaken left and right, so that the precursor solution on the top of the substrate can be shaken evenly, further improving the glue coating effect.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance and structure of a large-area perovskite solar cell preparation device of the present invention.

[0018] Figure 2It is a schematic structural diagram of a cross-sectional front view of a large-area perovskite solar cell preparation device of the present invention.

[0019] Figure 3 For the present invention Figure 2 A is a schematic diagram of the enlarged structure.

[0020] Figure 4 For the present invention Figure 2 B is a schematic diagram of the enlarged structure.

[0021] Figure 5 For the present invention Figure 2 Schematic diagram of the structure enlarged in C.

[0022] Numbers in the figure: 1-square shell, 2-glue dripping device, 21-bracket, 22-glue storage tank, 23-glue dripping head, 24-heat light, 3-fixed component, 31-electric push rod, 32-support plate, 33-placing plate, 34-spring B, 35-slider, 36-push rod, 37-telescopic plate, 38-spring C, 39-support rod, 310-moving block, 311-support plate, 4-auxiliary component, 41-sleeve rod, 42-disc, 43-toggle rod, 44-rotating rod, 45-spring A, 46-slide rod, 5-driven component, 51-fixed rod, 52-resist rod, 53-torsion spring, 54-fixed block. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] like Figure 1-5 As shown, the large-area perovskite solar cell preparation device provided by the present invention comprises a square housing 1, a glue dripping device 2 and an auxiliary component 4 arranged at the top of the square housing, and a fixing component 3 for fixing the substrate arranged at the bottom of the square housing. A door that can be opened and closed is arranged on one side of the square housing 1.

[0025] The glue dropping device 2 includes a bracket 21, a glue storage tank 22, a glue dropping head 23 and a heat light lamp 24; the glue storage tank 22 is located at the top outside the square shell 1, the top of the bracket 21 is fixed to the top surface inside the square shell, the heat light lamp 24 is fixed at the bottom of the bracket 21, the glue dropping head 23 penetrates the top surface of the square shell 1 and the bracket 21 and is fixed to the square shell 1 and the bracket 21, and the top of the glue dropping head 23 is connected to the glue storage tank 22.

[0026] The auxiliary component 4 includes a sleeve rod 41, the top of which is fixed to the bottom of the bracket 21; a disc 42 is rotatably arranged at the bottom of the sleeve rod 41, a toggle rod 43 is fixed to the edge of the disc 42, a rotating rod 44 is vertically arranged inside the sleeve rod 41, the rotating rod 44 passes through the bottom of the sleeve rod 41 and the disc 42 and extends to the outside of the sleeve rod 41, the disc 42 can move up and down along the rotating rod 44 and rotate with the rotating rod; a spring A45 is sleeved on the rotating rod 44 outside the sleeve rod 41, the top of the spring A45 is fixed to the disc 42, and the spring A45 is rotated with the spring A45. The bottom end of 45 is fixed to the rotating rod 44; a sliding rod 46 is fixed on the inner wall of the sleeve rod 41, and a spiral groove is provided on the upper surface of the rotating rod 44. The front end of the sliding rod 46 is slidably installed in the groove of the rotating rod 44; when the rotating rod 44 moves up and down, the sliding rod 46 slides in the groove of the rotating rod 44, so that the rotating rod 44 rotates, and the rotating rod 44 rotates with the disk 42, thereby driving the toggle rod 43 to rotate. The toggle rod 43 is used to evenly apply the precursor solution on the top of the substrate. Since the sleeve rod 41 is fixed to the bottom of the bracket 21, and the glue head 23 passes through the top surface of the square shell 1 and the bracket 21 and is fixed to the square shell 1 and the bracket 21, the sleeve rod 41 will not affect the glue head 23 from normally dripping glue to the substrate.

[0027] The fixing assembly 3 includes an electric push rod 31 fixed to the bottom surface of the square shell, and a top fixing support plate 32 of the electric push rod 31. A slide groove is provided on the top of the support plate 32. A placement plate 33 and a spring B34 for placing the substrate are slidably installed in the slide groove. One end of the spring B34 is connected to the placement plate 33. Vertical baffles are provided on the left and right edges of the placement plate 33. Fixing units for fixing the substrate are symmetrically arranged on the inner sides of the left and right baffles. The fixing unit includes a slider 35 that passes through the baffle plate horizontally and can slide up and down, a push rod 36 that can slide left and right is set inside the slider, a telescopic plate 37 perpendicular to the push rod is fixedly installed at the front end of the push rod 36 located on the inner side of the placement plate 33, a spring C38 is sleeved on the push rod 36 located between the telescopic plate 37 and the slider 35, and one end of the spring C is fixed on the slider 35; an inner groove is provided in the lower half of the telescopic plate 37, and the telescopic plate is sleeved on the support plate 311 through the inner groove in a manner that it can move up and down, and the bottom of the support plate 311 is located on the placement plate 33; the top end of the support rod 39 is hinged at the bottom of the slider 35 located on the inner side of the placement plate 33, and the support rod The bottom end of 39 is hinged with a moving block 310, which is located on the placement plate; when the substrate is inserted between the two telescopic plates 37, the substrate pushes the telescopic plates 37 to move in the direction close to the baffle, and under the action of the spring C38, the two telescopic plates 37 clamp the substrate; and when the telescopic plates 37 move, the support plate 311 also pushes the moving block 310 to move in the direction close to the baffle, and the moving block 310 pushes the slider 35 upward through the support rod 39, and the slider 35 drives the telescopic plates 37 upward through the push rod 36, and the telescopic plates 37 move upward with the substrate for a distance, so as to fix the substrate and facilitate the gluing operation. A rubber pad is provided on the side of the telescopic plate 37 that contacts the substrate, so that the substrate will not be damaged when the substrate is fixed.

[0028] In order to further improve the effect of gluing, the preparation device structure of the present invention also includes a driven component 5 arranged on the inner wall of the square shell, and the driven component 5 is located on the side away from the spring B 34. The installation height requirement of the driven component 5 on the inner wall of the square shell is: located below the auxiliary component 4 and higher than the lowest position of the placement plate 33. The driven component 5 includes a fixed rod 51 that is horizontally arranged and fixed at one end on the inner wall of the square shell 1, and the other end of the fixed rod 51 is hinged to the push rod 52. A torsion spring 53 is arranged at the top of the connection between the push rod 52 and the fixed rod 51. The two ends of the torsion spring 53 are respectively connected to the push rod 52 and the fixed rod 51. A fixed block 54 is installed at the bottom of the front end of the fixed rod 51. The fixed block 54 is used to prevent the push rod 52 from rotating downward, so that the push rod 52 can only rotate upward with the hinge point as the center of the circle. The top of the front end of the push rod 52 is set as a downward bevel. When the placement plate 33 moves downward, the placement plate 33 abuts against the oblique surface of the top right side of the abutting rod 52 and is pushed to the right by the abutting rod 52. When the placement plate 33 is no longer abutted, the placement plate 33 is reset to the left under the action of the spring B34, and the left-right shaking is realized, so that the precursor solution on the top of the substrate can be shaken evenly, further improving the effect of glue coating. The preferred structure is that the driven component 5 includes several, such as Figure 2 In the three shown in FIG. 3 , all driven components 5 are located at different heights on the inner wall of the square housing and are located on a vertical line.

[0029] The process of using the preparation device of the present invention is as follows:

[0030] When in use, first insert the substrate between the two telescopic plates 37, and the two telescopic plates 37 are pushed to move to the left and right sides. Under the action of the spring C 38, the two telescopic plates 37 clamp the substrate. While the two telescopic plates 37 move to the left and right sides, the support plate 311 pushes the moving block 310 to move toward the baffle. The moving block 310 pushes the slider 35 upward through the support rod 39. The slider 35 drives the telescopic plate 37 upward through the push rod 36. The telescopic plate 37 moves the substrate upward for a distance, thereby fixing the substrate and facilitating the glue coating operation.

[0031] Then the electric push rod 31 is started, and the electric push rod 31 moves upward with the support plate 32 and the placement plate 33. At this time, the placement plate 33 abuts against the support rod 52, so that the support rod 52 rotates upward with the position where it is hinged with the fixed rod 51 as the center, which will not affect the normal upward movement of the placement plate 33.

[0032] When the substrate is close to the glue dropper 23, the glue dropper 23 and the heat lamp 24 are turned on, and the glue dropper 23 drops the precursor solution on the substrate. When the rotating rod 44 is against the top of the substrate, the rotating rod 44 is pushed to move upward, and the sliding rod 46 can slide in the arc-shaped sliding groove on the surface of the rotating rod 44, so that the rotating rod 44 rotates. The rotating rod 44 can rotate with the toggle rod 43, and the toggle rod 43 can evenly spread the precursor solution on the top of the substrate.

[0033] After the glue coating is completed, the electric push rod 31 is started to move the support plate 32 and the placement plate 33 downward to reset. When the placement plate 33 moves downward, the placement plate 33 is pressed against the oblique surface of the top right side of the push rod 52 and is pushed to the right by the push rod 52. When the placement plate 33 is no longer pressed, under the action of the spring B 34, the placement plate 33 is reset to the left to achieve left and right shaking, so that the precursor solution on the top of the substrate can be shaken evenly, further improving the glue coating effect. After resetting, the substrate can be removed.

[0034] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A large-area perovskite solar cell preparation device, characterized in that: It comprises a square housing (1), a glue-dropping device (2) and an auxiliary component (4) arranged at the top of the square housing (1), and a fixing component (3) arranged at the bottom of the square housing (1) for fixing a substrate; The glue dropping device (2) comprises a bracket (21), a glue storage tank (22), a glue dropping head (23) and a heat light lamp (24); the glue storage tank (22) is located at the top of the outside of the square shell (1); the top of the bracket (21) is fixed to the top surface of the inside of the square shell (1); the heat light lamp (24) is fixed to the bottom of the bracket (21); the glue dropping head (23) penetrates the top surface of the square shell (1) and the bracket (21) and is fixed to the square shell (1) and the bracket (21); the top of the glue dropping head (23) is connected to the glue storage tank (22); The auxiliary component (4) comprises a sleeve rod (41), the top of which is fixed to the bottom of the bracket (21); a disc (42) is rotatably arranged at the bottom of the sleeve rod (41), a toggle rod (43) is fixed to the edge of the disc (42), a rotating rod (44) is vertically arranged inside the sleeve rod (41), the rotating rod (44) penetrates the bottom of the sleeve rod (41) and the disc (42) and extends to the outside of the sleeve rod (41), the disc (42) moves up and down along the rotating rod (44) and rotates with the rotating rod (44); a spring A (45) is sleeved on the rotating rod (44) located outside the sleeve rod (41), and the spring A (45) The top end is fixed to the disc (42), and the bottom end of the spring A (45) is fixed to the rotating rod (44); a sliding rod (46) is fixed on the inner wall surface of the sleeve rod (41), and a spiral sliding groove is opened on the upper surface of the rotating rod (44), and the front end of the sliding rod (46) is slidably installed in the sliding groove of the rotating rod (44); when the rotating rod (44) moves up and down, the sliding rod (46) slides in the sliding groove of the rotating rod (44), so that the rotating rod (44) rotates, and the rotating rod (44) rotates with the disc (42), thereby driving the toggle rod (43) to rotate, and the toggle rod (43) is used to evenly apply the precursor solution on the top of the substrate; The fixing assembly (3) comprises an electric push rod (31) fixed to the inner bottom surface of the square housing (1), and a top fixing support plate (32) of the electric push rod (31); a slide groove is provided on the top of the support plate (32); a placement plate (33) for placing a substrate and a spring B (34) are slidably installed in the slide groove; one end of the spring B (34) is connected to the placement plate (33); vertical baffles are provided on the left and right edges of the placement plate (33); and fixing units for fixing the substrate are symmetrically provided on the inner sides of the left and right baffles; The fixing unit comprises a sliding block (35) which passes through the baffle plate horizontally and can slide up and down, a push rod (36) which can slide left and right is arranged inside the sliding block (35), a telescopic plate (37) which is perpendicular to the push rod is fixedly installed at the front end of the push rod (36) which is located inside the placement plate (33), a spring C (38) is sleeved on the push rod (36) which is located between the telescopic plate (37) and the sliding block (35), and one end of the spring C (38) is fixed on the sliding block (35); an inner groove is provided at the lower half of the telescopic plate (37), and the telescopic plate (37) is sleeved on the supporting plate (311) through the inner groove in a manner that it can move up and down, and the bottom of the supporting plate (311) is located on the placement plate (33); a support rod (39) is hinged at the bottom of the sliding block (35) which is located inside the placement plate (33) ), the bottom end of the support rod (39) is hinged to a moving block (310), and the moving block (310) is located on the placement plate; when the substrate is inserted between the two telescopic plates (37), the substrate pushes the telescopic plates (37) to move in a direction close to the baffle, and under the action of the spring C (38), the two telescopic plates (37) clamp the substrate; and when the telescopic plates (37) move, the support plate (311) also pushes the moving block (310) to move in a direction close to the baffle, and the moving block (310) pushes the slider (35) to move upward through the support rod (39), and the slider (35) drives the telescopic plates (37) to move upward through the push rod (36), and the telescopic plates (37) move upward with the substrate for a distance, thereby fixing the substrate and facilitating the gluing operation.

2. The large-area perovskite solar cell preparation device according to claim 1, characterized in that: The invention also comprises a driven component (5) arranged on the inner wall surface of the square housing (1), the driven component (5) being located on a side away from the spring B (34), the driven component (5) being located below the auxiliary component (4) and being higher than the lowest position at which the placement plate (33) descends; the driven component (5) comprises a fixed rod (51) arranged horizontally and having one end fixed on the inner wall surface of the square housing (1), the other end of the fixed rod (51) being hinged to a support rod (52), a torsion spring (53) being arranged at the top of the connection between the support rod (52) and the fixed rod (51), the two ends of the torsion spring (53) being respectively connected to the support rod (52) and the fixed rod (51), a fixed block (54) being installed at the bottom of the front end of the fixed rod (51), the fixed block (54) being used to prevent the support rod (52) from rotating downward, so that the support rod (52) can only rotate upward with the hinge point as the center of the circle.

3. The large-area perovskite solar cell preparation device according to claim 2, characterized in that: The top of the front end of the support rod (52) is arranged as a downwardly inclined surface.

4. The large-area perovskite solar cell preparation device according to claim 2, characterized in that: The driven components (5) include a plurality of driven components (5), and all driven components (5) are located at different heights on the inner wall of the square housing (1) and are located on a vertical line.

5. The large-area perovskite solar cell manufacturing device according to claim 1, characterized in that: A closable door is provided on one side of the square housing (1).

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