Perovskite cell film brushing device

By designing a clamping and coating mechanism, the problem of uneven coating caused by substrate instability was solved, ensuring uniform coating of perovskite battery films and improving battery performance.

CN223996501UActive Publication Date: 2026-03-17BEIJING KAIJUN WEIHONG TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

During the coating process of perovskite solar cells, the movement and instability of the substrate lead to poor coating uniformity and photoelectric performance, affecting cell efficiency and mechanical stability.

Method used

A perovskite battery thin film coating device was designed, comprising a clamping mechanism and a coating mechanism. The clamping mechanism uses a motor-driven turntable and a hinge rod to drive the clamping plate to clamp the glass substrate, and the coating mechanism uses a coating roller and a scraper to ensure uniform coating distribution.

Benefits of technology

This method achieves stable fixation of the glass substrate and uniform coating, improving coating uniformity and the photoelectric performance of the battery, and extending the battery's lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a perovskite cell film brushing device, and relates to the technical field of perovskite cell film brushing. The device comprises a bottom plate and a support frame, wherein a clamping mechanism and a brushing mechanism are arranged on the bottom plate. By arranging the clamping mechanism, the glass substrate can be placed on the top face of the supporting frame before film brushing is conducted on the glass substrate, at the moment, a motor can be driven to drive a rotating rod to rotate, a rotating disc can drive four rotating discs to rotate, and at the moment, hinge rods on four connecting shafts can drive connecting sleeves to rotate; in the rotating process of a plurality of connecting sleeves, four clamping plates can be attached to the outer wall of a glass substrate to position and clamp the glass substrate, meanwhile, a plurality of connecting rods are matched with torsional springs, the clamping force is relieved, meanwhile, the situation that the glass substrate is damaged due to the too large clamping force of the clamping plates is prevented, and the service life of the glass substrate is prolonged. And it is ensured that the glass substrate can be stably fixed to the top face of the supporting frame before painting, and the accuracy during painting is ensured.
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Description

Technical Field

[0001] This utility model belongs to the field of perovskite battery thin film coating technology, and in particular relates to a perovskite battery thin film coating device. Background Technology

[0002] Perovskite solar cells are considered one of the most promising next-generation solar cell technologies due to their high photoelectric conversion efficiency, low cost, and solution-processability. Over the past decade, the photoelectric conversion efficiency of perovskite cells has approached that of traditional silicon-based solar cells, and they possess unique advantages in special applications such as flexible and semi-transparent structures. Therefore, they have received widespread attention and in-depth research in the field of renewable energy.

[0003] During the coating process, the movement and instability of the substrate can directly affect the uniformity and photoelectric performance of the coating, making it difficult to guarantee the quality of the final product. If the substrate is not properly fixed, the coating agent may not be evenly distributed, resulting in bubbles or uneven thickness. These problems not only affect the efficiency of the battery, but may also lead to a decrease in the mechanical stability of the battery and a shortened lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a perovskite battery thin film coating device. By setting a clamping mechanism, it ensures that the glass substrate can be stably fixed on the top surface of the support frame before coating, ensuring the accuracy of coating. This solves the problem that if the substrate is not properly fixed, the coating agent may not be evenly distributed, resulting in bubbles or uneven thickness.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a perovskite battery thin film coating device, including a base plate and a support frame, wherein the base plate is provided with a clamping mechanism and a coating mechanism;

[0007] The clamping mechanism includes a support frame fixedly connected to the top surface of a base plate. A motor is fixedly connected to the top surface of the base plate. A rotating rod is fixedly connected to the output end of the motor via a coupling. A turntable is fixedly connected to the outer wall of the rotating rod. Four connecting shafts are fixedly connected to the top surface of the turntable. A hinge rod is rotatably connected to the outer wall of each of the four connecting shafts. A connecting sleeve is rotatably connected to one end of each of the four hinge rods away from the connecting shaft. A connecting rod is rotatably connected to the inner wall of each of the four connecting sleeves. A clamping plate is fixedly connected to the top surface of each of the four connecting rods. A torsion spring is wound around the outer wall of each of the four connecting rods. One end of the torsion spring is rotatably connected to the inner wall of the connecting sleeve, and the other end of the torsion spring is fixedly connected to the outer wall of the clamping plate. The four connecting sleeves are rotatably connected to the inner top wall of the support frame. The top ends of the four connecting sleeves rotatably extend to the top surface of the support frame. A glass substrate is placed on the top surface of the support frame. The four clamping plates are in contact with the glass substrate.

[0008] Furthermore, the coating mechanism includes two sliding grooves 1 formed on the top surface of the support frame, and the inner walls of the two sliding grooves 1 are slidably connected to sliders 1.

[0009] Furthermore, a movable frame is fixedly connected to the top surface of the two sliders, and a sliding groove is provided on both the left and right sides of the movable frame.

[0010] Furthermore, the inner walls of both of the two slide grooves are slidably connected to sliders, and a movable frame is fixedly connected between the two sliders.

[0011] Furthermore, a coating roller is rotatably connected to the inner wall of the movable frame, and a scraper is fixedly connected to the inner wall of the movable frame, with the scraper located behind the coating roller.

[0012] Furthermore, a threaded rod is rotatably connected to the top surface of the movable frame, and the threaded rod is threaded through the movable frame.

[0013] Furthermore, a handle is fixedly connected to the top end of the threaded rod.

[0014] This utility model has the following beneficial effects:

[0015] 1. With the clamping mechanism in place, the glass substrate can be placed on the top surface of the support frame before applying the thin film coating. At this time, the drive motor can rotate the rotating rod, which in turn drives the four rotating disks to rotate. The hinge rods on the four connecting shafts will drive the connecting sleeves to rotate. During the rotation of the multiple connecting sleeves, the clamping plates will move closer to the glass substrate, so that the four clamping plates can fit against the outer wall of the glass substrate to position and clamp it. At the same time, the multiple connecting rods and torsion springs work together to reduce the clamping force and prevent the clamping force of the clamping plates from being too great and damaging the glass substrate. This ensures that the glass substrate can be stably fixed on the top surface of the support frame before coating, ensuring the accuracy of the coating process.

[0016] 2. With the coating mechanism in place, after the glass substrate is positioned, the perovskite slurry can be applied to the top surface of the glass substrate. Simultaneously, turning the handle drives the threaded rod to rotate. With the cooperation of the second slide and the second slider, the moving frame moves downward. When the coating roller is in contact with the top surface of the glass substrate, the second slider can be pulled to move the moving frame forward, pushing the perovskite slurry to be applied to the surface of the glass substrate. During the coating process, the coating roller will roll, and under the action of the scraper, the scraper can scrape off the excess slurry adhering to the coating roller, making the slurry coating more even. The threaded rod and the handle work together to adjust the coating thickness of the slurry.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the coating mechanism of this utility model;

[0022] Figure 4 for Figure 1 Enlarged structural diagram at point A;

[0023] Figure 5 for Figure 3A magnified structural diagram at point B in the middle.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Base plate; 2. Clamping mechanism; 3. Coating mechanism; 4. Glass substrate; 21. Support frame; 22. Motor; 23. Rotating rod; 24. Turntable; 25. Connecting shaft; 26. Hinge rod; 27. Connecting sleeve; 28. Connecting rod; 29. ​​Clamping plate; 291. Torsion spring; 31. Slide groove one; 32. Slider one; 33. Moving frame; 34. Slide groove two; 35. Slider two; 36. Moving frame; 37. Coating roller; 38. Scraper; 39. Threaded rod; 391. Handle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 As shown, this utility model is a perovskite battery thin film coating device, including a base plate 1 and a support frame 21. The base plate 1 is provided with a clamping mechanism 2 and a coating mechanism 3.

[0028] The clamping mechanism 2 includes a support frame 21 fixedly connected to the top surface of the base plate 1. A motor 22 is fixedly connected to the top surface of the base plate 1. A rotating rod 23 is fixedly connected to the output end of the motor 22 via a coupling. A turntable 24 is fixedly connected to the outer wall of the rotating rod 23. Four connecting shafts 25 are fixedly connected to the top surface of the turntable 24. Hinged rods 26 are rotatably connected to the outer walls of the four connecting shafts 25. Connecting sleeves 27 are rotatably connected to the ends of the four hinged rods 26 away from the connecting shafts 25. Connecting rods 28 are rotatably connected to the inner walls of the four connecting sleeves 27. Clamping plates 29 are fixedly connected to the top surfaces of the four connecting rods 28. Torsion springs 291 are wound around the outer walls of the four connecting rods 28. One end of the torsion spring 291 is rotatably connected to the inner wall of the connecting sleeve 27, and the other end of the torsion spring 291 is fixedly connected to the outer wall of the clamping plate 29. The four connecting sleeves 27 are rotatably connected to the inner top wall of the support frame 21. The top ends of the four connecting sleeves 27 rotatably extend to the top of the support frame 21. On the top surface of the support frame 21, a glass substrate 4 is placed. Four clamping plates 29 are in contact with the glass substrate 4. With the clamping mechanism 2, the glass substrate 4 can be placed on the top surface of the support frame 21 before the film coating is applied. At this time, the drive motor 22 can drive the rotating rod 23 to rotate, so that the turntable 24 can drive the four turntables 24 to rotate. At this time, the hinge rods 26 on the four connecting shafts 25 will drive the connecting sleeves 27 to rotate. During the rotation of the multiple connecting sleeves 27, the clamping plates 29 will move closer to the glass substrate 4, so that the four clamping plates 29 can fit against the outer wall of the glass substrate 4 to position and clamp the glass substrate 4. At the same time, the multiple connecting rods 28 and the torsion springs 291 cooperate with each other to reduce the clamping force and prevent the clamping force of the clamping plates 29 from being too large and damaging the glass substrate 4. This ensures that the glass substrate 4 can be stably fixed on the top surface of the support frame 21 before coating, ensuring the accuracy of coating.

[0029] The coating mechanism 3 includes two grooves 31 on the top surface of the support frame 21. Slider 32 is slidably connected to the inner walls of both grooves 31. A movable frame 33 is fixedly connected to the top surface of the two sliders 32. Grooves 34 are provided on the left and right sides of the movable frame 33. Slider 35 is slidably connected to the inner walls of both grooves 34. A movable frame 36 is fixedly connected between the two sliders 35. A coating roller 37 is rotatably connected to the inner wall of the movable frame 36. A scraper 38 is fixedly connected to the inner wall of the movable frame 36, located behind the coating roller 37. A threaded rod 39 is rotatably connected to the top surface of the movable frame 36. The threaded rod 39 is threaded through the movable frame 33. A handle 391 is fixedly connected to the top of the threaded rod 39. The coating mechanism is equipped with a... Mechanism 3, after positioning the glass substrate 4, can apply perovskite material slurry to the top surface of the glass substrate 4. At the same time, rotating the handle 391 drives the threaded rod 39 to rotate. With the cooperation of the second slide groove 34 and the second slider 35, the moving frame 36 moves downward. When the coating roller 37 is in contact with the top surface of the glass substrate 4, the second slider 35 can be pulled to drive the moving frame 36 forward, pushing the perovskite material slurry to be coated on the surface of the glass substrate 4. During the coating process, the coating roller 37 will roll. Under the action of the scraper 38, the scraper can scrape off the excess slurry attached to the coating roller 37, so that the slurry can be coated more evenly. The threaded rod 39 and the handle 391 cooperate with each other to adjust the coating thickness of the slurry.

[0030] A specific application of this embodiment is as follows: By providing a clamping mechanism 2, before applying a thin film coating to the glass substrate 4, the glass substrate 4 can be placed on the top surface of the support frame 21. At this time, the drive motor 22 can drive the rotating rod 23 to rotate, so that the turntable 24 can drive the four turntables 24 to rotate. At this time, the hinge rods 26 on the four connecting shafts 25 will drive the connecting sleeves 27 to rotate. During the rotation of the multiple connecting sleeves 27, the clamping plates 29 will move closer to the glass substrate 4, so that the four clamping plates 29 can fit against the outer wall of the glass substrate 4 to position and clamp the glass substrate 4. At the same time, the multiple connecting rods 28 and the torsion springs 291 cooperate with each other to reduce the clamping force and prevent the clamping force of the clamping plates 29 from being too large and causing damage to the glass substrate 4. This ensures that the glass substrate 4 can be stably fixed on the top surface of the support frame 21 before coating, and ensures the accuracy of coating.

[0031] With the coating mechanism 3 in place, after the glass substrate 4 is positioned, the perovskite material slurry can be coated onto the top surface of the glass substrate 4. At the same time, rotating the handle 391 drives the threaded rod 39 to rotate. With the cooperation of the second slide groove 34 and the second slider 35, the moving frame 36 moves downward. When the coating roller 37 is in contact with the top surface of the glass substrate 4, the second slider 35 can be pulled to drive the moving frame 36 forward, pushing the perovskite material slurry to be coated onto the surface of the glass substrate 4. During the coating process, the coating roller 37 will roll. Under the action of the scraper 38, the scraper can scrape off the excess slurry adhering to the coating roller 37, so that the slurry can be coated more evenly. The threaded rod 39 and the handle 391 cooperate with each other to adjust the coating thickness of the slurry.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A perovskite cell thin film brushing device, characterized in that: It includes a bottom plate (1) and a support frame (21), the bottom plate (1) is provided with clamping mechanism (2) and painting mechanism (3); The clamping mechanism (2) includes a support frame (21) fixedly connected to the top surface of the bottom plate (1), the top surface of the bottom plate (1) is fixedly connected with a motor (22), the output end of the motor (22) is fixedly connected with a rotating rod (23) through a shaft coupling, the outer wall of the rotating rod (23) is fixedly connected with a rotating disc (24), the top surface of the rotating disc (24) is fixedly connected with four connecting shafts (25), the outer wall of each of the four connecting shafts (25) is rotatably connected with a hinged rod (26), one end of each of the four hinged rods (26) away from the connecting shaft (25) is rotatably connected with a connecting sleeve (27), the inner wall of each of the four connecting sleeves (27) is rotatably connected with a connecting rod (28), the top surface of each of the four connecting rods (28) is fixedly connected with a clamping plate (29), the outer wall of each of the four connecting rods (28) is wound with a torsional spring (291), one end of the torsional spring (291) is rotatably connected with the inner wall of the connecting sleeve (27), the other end of the torsional spring (291) is fixedly connected with the outer wall of the clamping plate (29), each of the four connecting sleeves (27) is rotatably connected with the inner top wall of the support frame (21), the top end of each of the four connecting sleeves (27) rotatably extends to the top surface of the support frame (21), the top surface of the support frame (21) is placed with a glass substrate (4), each of the four clamping plates (29) is in contact with the glass substrate (4).

2. The perovskite cell thin film brushing device according to claim 1, characterized in that, The painting mechanism (3) includes two sliding grooves (31) formed in the top surface of the support frame (21), the inner wall of each of the two sliding grooves (31) is slidably connected with a sliding block (32).

3. The perovskite cell thin film brushing device according to claim 2, characterized in that, The top surface of each of the two sliding blocks (32) is fixedly connected with a moving frame (33), the left side and the right side of the moving frame (33) are each provided with a sliding groove (34).

4. The perovskite cell thin film brushing device according to claim 3, characterized in that, The inner wall of each of the two sliding grooves (34) is slidably connected with a sliding block (35), and the moving frame (36) is fixedly connected between the two sliding blocks (35).

5. The perovskite cell thin film brushing device according to claim 4, characterized in that, The inner wall of the moving frame (36) is rotatably connected with a painting roller (37), and the inner wall of the moving frame (36) is fixedly connected with a scraper (38), which is located at the back side of the painting roller (37).

6. The perovskite cell thin film brushing device according to claim 5, characterized in that, The top surface of the moving frame (36) is rotatably connected with a threaded rod (39), and the threaded rod (39) is threaded through the moving frame (33).

7. The perovskite cell thin film brushing device according to claim 6, characterized in that, The top end of the threaded rod (39) is fixedly connected with a handle (391).