An apparatus for manufacturing a proton exchange membrane for a fuel cell

Abstract

This invention discloses a proton exchange membrane (PEM) fabrication equipment for fuel cells, relating to the field of PEM fabrication technology. Addressing the problems of large thickness fluctuations and low yield in membrane fabrication, the invention includes a PEM fabrication apparatus. A worktable is fixedly connected to the top of the apparatus, a glass plate is positioned at the top of the worktable, and a solution casting device is positioned above the glass plate. Multiple casting heads are fixedly connected below the solution casting device, and a thickness control and leveling component is positioned above the glass plate. This PEM fabrication equipment for fuel cells is an integrated continuous production line, achieving precise manufacturing from polymer raw materials to high-performance PEMs. The main processes are solution casting and melt extrusion to ensure the three core indicators of membrane material: quantum conductivity, thickness uniformity, and mechanical and chemical stability.

Description

Technical Field

[0001] This invention relates to the field of proton exchange membrane preparation technology, and more particularly to a proton exchange membrane preparation apparatus for fuel cells. Background Technology

[0002] The proton exchange membrane fabrication equipment for fuel cells is an integrated continuous production line. Its core function is to achieve the precision manufacturing of high-performance proton exchange membranes from polymer raw materials. The mainstream processes are solution casting and melt extrusion to ensure the three core indicators of membrane material: quantum conductivity, thickness uniformity, and mechanical and chemical stability.

[0003] Traditional leveling methods lack precise thickness control and a stable execution structure, which not only causes localized uneven thickness on the surface of a single membrane, but also results in significant thickness fluctuations between batches of continuous production. This leads to a large number of membranes being deemed substandard because they cannot meet the stringent performance standards of fuel cells, significantly reducing the production yield. Summary of the Invention

[0004] This invention discloses a proton exchange membrane preparation device for fuel cells, which aims to solve the technical problems of large thickness fluctuations between batches or on a single membrane, low yield, and inability to meet the high precision requirements of fuel cells for proton exchange membranes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A proton exchange membrane (PEM) fabrication apparatus for fuel cells includes a PEM fabrication device. A worktable is fixedly connected to the top of the PEM fabrication device. A glass plate is placed on the top of the worktable, and a solution casting device is placed above the glass plate. Multiple casting heads are fixedly connected below the solution casting device. A thickness control and leveling assembly is placed above the glass plate. The thickness control and leveling assembly includes an extension rod, one side of which is fixedly connected to the outer side of the glass plate. A scraper is placed above the glass plate.

[0006] In a preferred embodiment, the top of the proton exchange membrane preparation device is fixedly connected to two fixing plates, with a glass plate located between the two fixing plates. A drive motor is fixedly connected to the side of one fixing plate near the glass plate, and the power output shaft of the drive motor is connected to a threaded rod via a coupling. The end of the threaded rod away from the drive motor is movably connected to the side of the other fixing plate near the glass plate, and the threaded rod is located inside the extension rod.

[0007] In a preferred embodiment, a base plate is movably connected to the outer side of the threaded rod, a movable frame is fixedly connected to the top of the base plate, the inner side of the movable frame is movably connected to the outer side of the extension rod, a scale plate is fixedly connected to the top of the movable frame, and a position display element is provided on the outer side of the scale plate. A connecting plate is fixedly connected to the side of the position display element away from the extension rod.

[0008] In a preferred embodiment, an electric telescopic rod is fixedly connected to the inner top of the base plate, and the telescopic end of the electric telescopic rod is fixedly connected to the bottom end of the connecting plate. A synchronous lifting sliding member is fixedly connected to the side of the connecting plate away from the extension rod. A hole is opened on the inner side of the synchronous lifting sliding member, and a guide rod is movably connected inside the hole. Both ends of the guide rod are fixedly connected to the opposite side of the fixed plate. The top of both the synchronous lifting sliding member and the connecting plate are fixedly connected to a fixing member, and the bottom end of the fixing member is fixedly connected to the top of the scraper.

[0009] In a preferred embodiment, a cleaning and drying device is provided on the outer side of the glass plate. The cleaning and drying device includes a rear component, the top of which is fixedly connected to one side of the connecting plate. A servo motor is provided on one side of the rear component, and the power output shaft of the servo motor is connected to a rotating rod through a coupling. One end of the rotating rod is movably connected to the inner side of one end of the rear component.

[0010] In a preferred embodiment, two rotating parts are fixedly connected to the outer side of the rotating rod, and an auxiliary scraping part is fixedly connected to the opposite side of the rotating parts. The auxiliary scraping part is in contact with both sides of the glass plate. Connecting parts are fixedly connected to both sides of the rear part, and a top plate is fixedly connected to the opposite side of the connecting parts.

[0011] In a preferred embodiment, the bottom end of the rear component is fixedly connected to two support seats, the top end of each support seat is fixedly connected to a telescopic electric rod, the top end of each telescopic electric rod is fixedly connected to a drying component, the top end of each drying component is fixedly connected to multiple tension springs, and the top end of each tension spring is fixedly connected to the bottom end of the top plate. Both sides of the top plate are fixedly connected to an expansion plate, which is located on both sides of the drying component.

[0012] In a preferred embodiment, a control cabinet is provided at the front end of the proton exchange membrane preparation device, a guardrail is fixedly connected to the top of the proton exchange membrane preparation device, and a solution tank is fixedly connected to the top of the guardrail.

[0013] In a preferred embodiment, a linear track is fixedly connected to the inner side of the guardrail, and a sliding seat is movably connected to the outer side of the linear track. The front end of the sliding seat is fixedly connected to one side of the solution pouring device, and pipe fixing devices are fixedly connected to the top of the solution pouring device and one side of the solution tank.

[0014] In a preferred embodiment, the pipe fixing device is provided with a connecting hose inside, and the top of the proton exchange membrane preparation device has two rectangular holes, and a collection frame is fixedly connected inside each rectangular hole. The collection frame is located below the two glass plates.

[0015] As can be seen from the above, the proton exchange membrane preparation equipment for fuel cells provided by the present invention has a position display that can intuitively reflect the real-time distance between the scraper and the solution surface on the scale plate, so as to realize precise quantitative adjustment of membrane thickness; at the same time, the synchronous lifting sliding component slides smoothly along the guide rod to ensure that the scraper remains parallel to the glass plate during the lifting process, avoiding uneven membrane thickness caused by unilateral tilting, and can accurately match the preset thinness requirements of proton exchange membranes of different specifications, with high thickness error control accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a proton exchange membrane preparation device for fuel cells proposed in this invention.

[0017] Figure 2 This is a schematic diagram of the bottom structure of the workbench of a proton exchange membrane preparation device for fuel cells proposed in this invention.

[0018] Figure 3 This is a schematic diagram of the solution tank section of a proton exchange membrane preparation device for fuel cells proposed in this invention.

[0019] Figure 4 This is a schematic diagram of the glass plate structure of a proton exchange membrane preparation device for fuel cells proposed in this invention.

[0020] Figure 5 This is a schematic diagram of the thinness control and leveling component structure of a proton exchange membrane preparation device for fuel cells proposed in this invention.

[0021] Figure 6 This is a schematic diagram of the thinness control and leveling component of a proton exchange membrane preparation device for fuel cells proposed in this invention.

[0022] Figure 7 This is a schematic diagram of the cleaning and drying device of a proton exchange membrane preparation equipment for fuel cells proposed in this invention.

[0023] Figure 8 This is a schematic diagram of a cleaning and drying device in a proton exchange membrane preparation equipment for fuel cells proposed in this invention.

[0024] In the diagram: 1. Proton exchange membrane preparation device; 2. Control cabinet; 3. Guardrail; 4. Workbench; 5. Glass plate; 6. Solution tank; 7. Pipe fixing device; 8. Connecting hose; 9. Solution pouring device; 10. Pouring head; 11. Thinness control and leveling assembly; 1101. Extension rod; 1102. Drive motor; 1103. Threaded rod; 1104. Fixing plate; 1105. Guide rod; 1106. Synchronous lifting sliding component; 1107. Moving frame; 1108. Base plate; 1109. Electric telescopic rod; 1110. Connection Plate; 1111, scale plate; 1112, position display component; 1113, fixing component; 1114, scraper; 12, linear track; 13, sliding seat; 14, cleaning and drying device; 1401, rear component; 1402, servo motor; 1403, rotating rod; 1404, rotating component; 1405, auxiliary scraping component; 1406, connecting component; 1407, top plate; 1408, support base; 1409, telescopic electric rod; 1410, outward expansion plate; 1411, tension spring; 1412, drying component; 15, collection frame. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] The proton exchange membrane preparation equipment for fuel cells disclosed in this invention is mainly applied to scenarios where there are large thickness fluctuations between batches or on a single membrane, resulting in low yield and inability to meet the high precision requirements of fuel cells for proton exchange membranes.

[0027] Reference Figures 1-8 A proton exchange membrane preparation device for fuel cells includes a proton exchange membrane preparation device 1. A workbench 4 is fixedly connected to the top of the proton exchange membrane preparation device 1. A glass plate 5 is provided at the top of the workbench 4. A solution casting device 9 is provided above the glass plate 5. A plurality of casting heads 10 are fixedly connected below the solution casting device 9. A thickness control and leveling assembly 11 is provided above the glass plate 5. The thickness control and leveling assembly 11 includes an extension rod 1101. One side of the extension rod 1101 is fixedly connected to the outside of the glass plate 5. A scraper 1114 is provided above the glass plate 5.

[0028] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6In a preferred embodiment, two fixing plates 1104 are fixedly connected to the top of the proton exchange membrane preparation device 1. The glass plate 5 is located between the two fixing plates 1104. A drive motor 1102 is fixedly connected to the side of one fixing plate 1104 near the glass plate 5. The power output shaft of the drive motor 1102 is connected to a threaded rod 1103 through a coupling. The end of the threaded rod 1103 away from the drive motor 1102 is movably connected to the side of the other fixing plate 1104 near the glass plate 5. The threaded rod 1103 is located inside the extension rod 1101.

[0029] In this invention, a base plate 1108 is movably connected to the outer side of the threaded rod 1103, a movable frame 1107 is fixedly connected to the top of the base plate 1108, the inner side of the movable frame 1107 is movably connected to the outer side of the extension rod 1101, a scale plate 1111 is fixedly connected to the top of the movable frame 1107, and a position display element 1112 is provided on the outer side of the scale plate 1111. A connecting plate 1110 is fixedly connected to the side of the position display element 1112 away from the extension rod 1101.

[0030] In this invention, an electric telescopic rod 1109 is fixedly connected to the inner side of the top of the base plate 1108. The telescopic end of the electric telescopic rod 1109 is fixedly connected to the bottom of the connecting plate 1110. A synchronous lifting sliding member 1106 is fixedly connected to the side of the connecting plate 1110 away from the extension rod 1101. A hole is opened on the inner side of the synchronous lifting sliding member 1106. A guide rod 1105 is movably connected inside the hole. Both ends of the guide rod 1105 are fixedly connected to the opposite side of the fixing plate 1104. A fixing member 1113 is fixedly connected to the top of both the synchronous lifting sliding member 1106 and the connecting plate 1110. The bottom end of the fixing member 1113 is fixedly connected to the top of the scraper 1114.

[0031] Specifically, firstly, the solution in the solution tank 6 flows slowly to the solution pouring device 9 through the connecting hose 8. The connecting hose 8 is fixed in a stable shape by the pipe fixing device 7, ensuring that the solution can flow smoothly and continuously without affecting the delivery efficiency due to the shaking or deformation of the hose. After the solution enters the solution pouring device 9, it is evenly distributed through the internal flow channel and finally sprayed onto the surface of the glass plate 5 synchronously and evenly from multiple pouring heads 10 below. At the same time, the sliding seat 13 begins to move smoothly on the linear track 12. The linear track 12 provides precise guidance for the sliding seat 13, ensuring that the sliding seat 13 can slide stably along the set path, driving the solution pouring device 9 to achieve longitudinal uniform displacement. During the movement, multiple pouring heads 10 work together to evenly spread the solution on the surface of the glass plate 5. As the solution pouring device 9 moves, a continuous and uniformly thick liquid film is gradually formed on the glass plate 5. When the solution pouring device 9 moves to the end of the linear track 12, the entire surface of the glass plate 5 is covered with solution, and the solution pouring stage is successfully completed. After the solution is poured, the electric telescopic rod 1109 is started, and the telescopic end slowly extends upward, driving the connecting plate 1110 connected to it to move upward as a whole. The movement of the connecting plate 1110 synchronously drives the position display 1112 to slide on the scale plate 1111. The clear scale markings on the scale plate 1111 allow the operator to intuitively read the position of the position display 1112, thereby accurately understanding the distance between the scraper 1114 and the surface of the poured solution. By adjusting the telescopic length of the electric telescopic rod 1109, the height of the scraper 1114 can be controlled to achieve matching according to the preset film thickness requirements. After confirming that the height of the scraper 1114 meets the requirements, the drive motor 1102 starts. The power output shaft of the drive motor 1102 drives the threaded rod 1103 to rotate through the coupling. The threaded rod 1103 rotates stably under the support of the two fixed plates 1104. The movement of the base plate 1108 drives the movable frame 1107 fixedly connected to it to move synchronously. The movable frame 1107 slides smoothly on the outside of the extension rod 1101, further driving the entire thickness control scraping assembly 11 to move from one side of the glass plate 5 to the other. During the movement of the scraping assembly, the scraper 1114 always remains parallel to the surface of the glass plate 5, slowly contacting and scraping the solution surface. During the movement, the scraper 1114 scrapes off the excess part of the solution surface, while simultaneously scraping the solution... The liquid is leveled. The edges of the scraper 1114 are carefully designed to ensure the smoothness of the solution surface while scraping away excess solution, avoiding scratches or dents. The scraped excess solution flows down along the edge of the scraper 1114 and eventually falls into the collection frame 15 below the glass plate 5. During the entire leveling process, the synchronous lifting slider 1106 slides smoothly on the guide rod 1105, providing additional guidance and support for the movement of the leveling component, ensuring that the leveling component can maintain a stable posture without tilting or shaking. The position display 1112 continuously displays the real-time position of the scraper 1114 on the scale plate 1111, allowing the operator to monitor the leveling process throughout and ensure that the height and moving speed of the scraper 1114 always meet the preset requirements.

[0032] It should be noted that the position display 1112 can intuitively reflect the real-time distance between the scraper 1114 and the solution surface on the scale plate 1111, realizing precise quantitative adjustment of the membrane thickness; at the same time, the synchronous lifting sliding component 1106 slides smoothly along the guide rod 1105, ensuring that the scraper 1114 remains parallel to the glass plate 5 during the lifting process, avoiding uneven membrane thickness caused by unilateral tilting, and can accurately match the preset thinness requirements of proton exchange membranes of different specifications, with high precision in thickness error control.

[0033] In practical applications, the scraper 1114 can remove excess solution in one go during movement, while simultaneously smoothing the solution surface, resulting in a smooth surface without scratches, dents, or material accumulation after membrane solidification. The scraper 1114's structural design is adapted to the surface characteristics of the glass plate 5, ensuring no damage to the substrate during scraping. Excess solution can flow down the edge of the scraper 1114 in an orderly manner, avoiding membrane contamination or material waste caused by random dripping.

[0034] Reference Figure 4 , Figure 7 and Figure 8In a preferred embodiment, a cleaning and drying device 14 is provided on the outer side of the glass plate 5. The cleaning and drying device 14 includes a rear component 1401. The top end of the rear component 1401 is fixedly connected to one side of the connecting plate 1110. A servo motor 1402 is provided on one side of the rear component 1401. The power output shaft of the servo motor 1402 is connected to a rotating rod 1403 through a coupling. One end of the rotating rod 1403 is movably connected to the inner side of one end of the rear component 1401.

[0035] In this invention, two rotating parts 1404 are fixedly connected to the outer side of the rotating rod 1403. An auxiliary scraping part 1405 is fixedly connected to the opposite side of the rotating part 1404, and the auxiliary scraping part 1405 is in contact with both sides of the glass plate 5. A connecting part 1407 is fixedly connected to both sides of the rear part 1401, and a top plate 1406 is fixedly connected to the opposite side of the connecting part 1407.

[0036] In this invention, the bottom end of the rear component 1401 is fixedly connected to two support seats 1408, the top end of each support seat 1408 is fixedly connected to a telescopic electric rod 1409, the top end of each telescopic electric rod 1409 is fixedly connected to a drying component 1412, the top end of each drying component 1412 is fixedly connected to multiple tension springs 1411, and the top end of each tension spring 1411 is fixedly connected to the bottom end of the top plate 1406. Both sides of the top plate 1406 are fixedly connected to an expansion plate 1410, which is located on both sides of the drying component 1412.

[0037] Specifically, after the leveling operation is completed, the servo motor 1402 starts to run. The power output shaft drives the rotating rod 1403 to rotate via a coupling. The rotation of the rotating rod 1403 drives the two rotating parts 1404 fixed on the outer side to rotate synchronously. The rotating parts 1404, which were originally parallel to the glass plate 5, gradually change to a state perpendicular to the glass plate 5 during the rotation. The rotation of the rotating parts 1404 further drives the auxiliary scraping parts 1405 connected to them to rotate synchronously, so that the auxiliary scraping parts 1405 change from a state parallel to the edge of the glass plate 5 to a state perpendicular to it, and make close contact with the two sides of the glass plate 5. After the glass plate 5 contacts the edge, as the thinness control leveling component 11 continues to move, the auxiliary scraper 1405 begins to scrape away the residual solution on both sides of the glass plate 5. This residual solution flows onto the edge of the glass plate 5 during the leveling process. If it is not cleaned in time, it will affect the edge quality of the proton exchange membrane and may cause defects during the drying process. The scraping action of the auxiliary scraper 1405 can effectively remove this residual solution, ensuring the cleanliness of the edge of the glass plate 5. The scraped residual solution will also fall into the collection box 15 below and be recycled together with the previously scraped excess solution. During the cleaning process, the telescopic electric rod 1409 on the support base 1408 is activated. The telescopic end of the electric rod 1409 slowly extends downward, driving the connected drying element 1412 downward. As the drying element 1412 moves downward, the distance between it and the solution surface gradually shortens. When the drying element 1412 reaches the preset drying position, the electric rod 1409 stops moving, maintaining the stability of the drying element 1412. The heating element inside the drying element 1412 starts working, and the generated heat is transferred to the solution surface through radiation and convection. The outer expansion plate 1410 is set on both sides of the drying element 1412, which can... The heat generated by the drying element 1412 diffuses to both sides, avoiding heat concentration in local areas, thus achieving uniform drying of the solution. Under the action of heat, the solvent in the solution gradually evaporates, and the liquid film begins to solidify. When the drying element 1412 moves downward, the tension spring 1411 is stretched, generating a certain elastic force, enabling the drying element 1412 to move smoothly and maintain a stable posture. At the same time, the elastic force of the tension spring 1411 can also compensate for the slight displacement of the drying element 1412 caused by thermal expansion and contraction during operation, ensuring that the distance between the drying element 1412 and the solution surface remains consistent, thereby ensuring the uniformity of the drying effect.

[0038] It should be noted that the membrane can be precisely switched from a standby state parallel to the glass plate 5 to a vertically attached state, making close contact with the edges of both sides of the glass plate 5. This can efficiently scrape off any residual solution that drips onto the edges of the plate during the leveling process, preventing the residue from forming rough edges or overflowing after drying. This ensures that the edges of the proton exchange membrane are neat and the dimensions are accurate, improving the membrane's appearance and its suitability for actual use.

[0039] In practical applications, the telescopic electric rod 1409 can precisely adjust the distance between the drying component 1412 and the solution surface, flexibly adjusting the drying distance according to the film thickness and solution characteristics to improve heat transfer efficiency. The outer expansion plates 1410 on both sides of the drying component 1412 can evenly diffuse heat in all directions, avoiding problems such as excessively rapid local drying and uneven shrinkage of the film caused by heat concentration in local areas, achieving uniform drying of the entire liquid film surface, and effectively preventing defects such as warping, cracking, and pinholes in the film.

[0040] Reference Figures 1-4 In a preferred embodiment, a control cabinet 2 is provided at the front end of the proton exchange membrane preparation device 1, a guardrail 3 is fixedly connected to the top of the proton exchange membrane preparation device 1, and a solution tank 6 is fixedly connected to the top of the guardrail 3. A linear track 12 is fixedly connected to the inner side of the guardrail 3, and a sliding seat 13 is movably connected to the outer side of the linear track 12. The front end of the sliding seat 13 is fixedly connected to one side of the solution casting device 9. A pipe fixing device 7 is fixedly connected to the top of the solution casting device 9 and one side of the solution tank 6. A connecting hose 8 is provided inside the pipe fixing device 7. Two rectangular holes are opened at the top of the proton exchange membrane preparation device 1, and a collection frame 15 is fixedly connected inside each of the rectangular holes. The collection frame 15 is located below the two glass plates 5.

[0041] Working principle: Before the equipment is started, the sliding seat 13 on the linear track 12 drives the solution pouring device 9 to stop at the initial end of the track. Multiple pouring heads 10 are neatly arranged below the device, maintaining a set initial distance from the glass plate 5 below, waiting to receive the solution. Above the glass plate 5, the thickness control scraping component 11 is in the initial position, and its scraper 1114 maintains a certain distance from the surface of the glass plate 5 to avoid contact with the solution to be laid later in the initial stage. First, the solution in the solution tank 6 flows slowly to the solution pouring device 9 through the connecting hose 8. The connecting hose 8 is fixed in a stable shape by the pipe fixing device 7, ensuring that the solution can flow smoothly and continuously without affecting the delivery efficiency due to the shaking or deformation of the hose. After the solution enters the solution pouring device 9, it is evenly distributed through the internal flow channel and finally sprayed onto the surface of the glass plate 5 synchronously and evenly from multiple pouring heads 10 below. At the same time, the sliding seat 13 begins to move smoothly on the linear track 12. The linear track 12 provides precise guidance for the sliding seat 13, ensuring that the sliding seat 13 can slide stably along the set path, driving the solution pouring device 9 to achieve longitudinal uniform displacement. During the movement, multiple pouring heads 10 work together to evenly spread the solution on the surface of the glass plate 5. As the solution pouring device 9 moves, a continuous and uniformly thick liquid film is gradually formed on the glass plate 5. When the solution pouring device 9 moves to the end of the linear track 12, the entire surface of the glass plate 5 is covered with solution, and the solution pouring stage is successfully completed. After the solution is poured, the electric telescopic rod 1109 is started, and the telescopic end slowly extends upward, driving the connecting plate 1110 connected to it to move upward as a whole. The movement of the connecting plate 1110 synchronously drives the position display 1112 to slide on the scale plate 1111. The clear scale markings on the scale plate 1111 allow the operator to intuitively read the position of the position display 1112, thereby accurately understanding the distance between the scraper 1114 and the surface of the poured solution. By adjusting the telescopic length of the electric telescopic rod 1109, the height of the scraper 1114 can be controlled to achieve matching according to the preset film thickness requirements. After confirming that the height of the scraper 1114 meets the requirements, the drive motor 1102 starts. The power output shaft of the drive motor 1102 drives the threaded rod 1103 to rotate through the coupling. The threaded rod 1103 rotates stably under the support of the two fixed plates 1104. The movement of the base plate 1108 drives the movable frame 1107 fixedly connected to it to move synchronously. The movable frame 1107 slides smoothly on the outside of the extension rod 1101, further driving the entire thickness control scraping assembly 11 to move from one side of the glass plate 5 to the other. During the movement of the scraping assembly, the scraper 1114 always remains parallel to the surface of the glass plate 5, slowly contacting and scraping the solution surface. During the movement, the scraper 1114 scrapes off the excess part of the solution surface, while simultaneously scraping the solution... The liquid is leveled. The edge of the scraper 1114 is carefully designed to ensure the flatness of the solution surface while scraping off excess solution, avoiding scratches or dents. The scraped excess solution will flow down along the edge of the scraper 1114 and eventually fall into the collection frame 15 below the glass plate 5. During the entire leveling process, the synchronous lifting slider 1106 slides smoothly on the guide rod 1105, providing additional guidance and support for the movement of the leveling component, ensuring that the leveling component can maintain a stable posture without tilting or shaking. The position display 1112 continuously displays the real-time position of the scraper 1114 on the scale plate 1111, allowing the operator to monitor the leveling process throughout and ensure that the height and moving speed of the scraper 1114 always meet the preset requirements. After the leveling operation is completed, the servo motor 1402 starts running. The power output shaft drives the rotating rod 1403 to rotate via a coupling. The rotation of the rotating rod 1403 drives the two rotating parts 1404 fixed on the outer side to rotate synchronously. The rotating parts 1404, which were originally parallel to the glass plate 5, gradually change to a state perpendicular to the glass plate 5 during the rotation. The rotation of the rotating parts 1404 further drives the auxiliary scraping parts 1405 connected to them to rotate synchronously, so that the auxiliary scraping parts 1405 change from a state parallel to the edge of the glass plate 5 to a state perpendicular to it, and make close contact with the two sides of the glass plate 5. After edge contact, as the thinness control scraping assembly 11 continues to move, the auxiliary scraper 1405 begins to scrape away the residual solution on both sides of the glass plate 5. This residual solution flows onto the edges of the glass plate 5 during the scraping process. If not cleaned in time, it will affect the edge quality of the proton exchange membrane and may cause defects during the drying process. The scraping action of the auxiliary scraper 1405 can effectively remove this residual solution, ensuring the cleanliness of the edges of the glass plate 5. The scraped residual solution will also fall into the collection box 15 below and be recycled together with the previously scraped excess solution. The auxiliary scraper 1405 cleans the solution. Simultaneously, the telescopic electric rod 1409 on the support base 1408 is activated. The telescopic end of the electric rod 1409 slowly extends downward, driving the connected drying element 1412 to move downward. As the drying element 1412 moves downward, the distance between it and the solution surface gradually shortens. When the drying element 1412 moves to the preset drying position, the electric rod 1409 stops moving, maintaining the stability of the drying element 1412. The heating element inside the drying element 1412 starts working, and the generated heat is transferred to the solution surface through radiation and convection. The outer expansion plate 1410 is set on both sides of the drying element 1412, which can dry the solution. The heat generated by component 1412 diffuses to both sides, preventing heat concentration in local areas and thus achieving uniform drying of the solution. Under the action of heat, the solvent in the solution gradually evaporates, and the liquid film begins to solidify. When the drying component 1412 moves downward, the tension spring 1411 is stretched, generating a certain elastic force, which enables the drying component 1412 to move smoothly and maintain a stable posture. At the same time, the elastic force of the tension spring 1411 can also compensate for the slight displacement of the drying component 1412 caused by thermal expansion and contraction during operation, ensuring that the distance between the drying component 1412 and the solution surface remains consistent, thereby ensuring the uniformity of the drying effect.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A proton exchange membrane preparation apparatus for fuel cells, comprising a proton exchange membrane preparation device (1), characterized in that, The proton exchange membrane preparation device (1) is fixedly connected to a workbench (4) at its top. A glass plate (5) is provided at the top of the workbench (4). A solution casting device (9) is provided above the glass plate (5). Multiple casting heads (10) are fixedly connected below the solution casting device (9). A thinness control scraping assembly (11) is provided above the glass plate (5). The thinness control scraping assembly (11) includes an extension rod (1101). One side of the extension rod (1101) is fixedly connected to the outside of the glass plate (5). A scraper (1114) is provided above the glass plate (5).

2. The proton exchange membrane preparation equipment for fuel cells according to claim 1, characterized in that, The top of the proton exchange membrane preparation device (1) is fixedly connected to two fixed plates (1104), and the glass plate (5) is located in the middle of the two fixed plates (1104). One of the fixed plates (1104) is fixedly connected to a drive motor (1102) on the side near the glass plate (5), and the power output shaft of the drive motor (1102) is connected to a threaded rod (1103) through a coupling. The end of the threaded rod (1103) away from the drive motor (1102) is movably connected to the side of the other fixed plate (1104) near the glass plate (5). The threaded rod (1103) is located inside the extension rod (1101).

3. The proton exchange membrane preparation equipment for fuel cells according to claim 2, characterized in that, The outer side of the threaded rod (1103) is movably connected to a base plate (1108), and the top of the base plate (1108) is fixedly connected to a movable frame (1107). The inner side of the movable frame (1107) is movably connected to the outer side of the extension rod (1101). The top of the movable frame (1107) is fixedly connected to a scale plate (1111), and a position display element (1112) is provided on the outer side of the scale plate (1111). A connecting plate (1110) is fixedly connected to the side of the position display element (1112) away from the extension rod (1101).

4. The proton exchange membrane preparation equipment for fuel cells according to claim 3, characterized in that, An electric telescopic rod (1109) is fixedly connected to the inner side of the top of the base plate (1108). The telescopic end of the electric telescopic rod (1109) is fixedly connected to the bottom end of the connecting plate (1110). A synchronous lifting sliding member (1106) is fixedly connected to the side of the connecting plate (1110) away from the extension rod (1101). A hole is opened on the inner side of the synchronous lifting sliding member (1106). A guide rod (1105) is movably connected inside the hole. Both ends of the guide rod (1105) are fixedly connected to the opposite side of the fixing plate (1104). The top ends of the synchronous lifting sliding member (1106) and the connecting plate (1110) are both fixedly connected to a fixing member (1113). The bottom end of the fixing member (1113) is fixedly connected to the top end of the scraper (1114).

5. The proton exchange membrane preparation equipment for fuel cells according to claim 3, characterized in that, A cleaning and drying device (14) is provided on the outer side of the glass plate (5). The cleaning and drying device (14) includes a rear component (1401). The top end of the rear component (1401) is fixedly connected to one side of the connecting plate (1110). A servo motor (1402) is provided on one side of the rear component (1401). The power output shaft of the servo motor (1402) is connected to a rotating rod (1403) through a coupling. One end of the rotating rod (1403) is movably connected to the inner side of one end of the rear component (1401).

6. The proton exchange membrane preparation apparatus for fuel cells according to claim 5, characterized in that, Two rotating parts (1404) are fixedly connected to the outer side of the rotating rod (1403). An auxiliary scraping part (1405) is fixedly connected to the opposite side of the rotating part (1404), and the auxiliary scraping part (1405) is in contact with both sides of the glass plate (5). A connecting part (1407) is fixedly connected to both sides of the rear part (1401), and a top plate (1406) is fixedly connected to the opposite side of the connecting part (1407).

7. The proton exchange membrane preparation apparatus for fuel cells according to claim 6, characterized in that, The bottom end of the rear component (1401) is fixedly connected to two support seats (1408). The top end of each support seat (1408) is fixedly connected to a telescopic electric rod (1409). The top end of each telescopic electric rod (1409) is fixedly connected to a drying component (1412). The top end of each drying component (1412) is fixedly connected to multiple tension springs (1411). The top end of each tension spring (1411) is fixedly connected to the bottom end of the top plate (1406). Both sides of the top plate (1406) are fixedly connected to an expansion plate (1410). The expansion plate (1410) is located on both sides of the drying component (1412).

8. The proton exchange membrane preparation apparatus for fuel cells according to claim 1, characterized in that, The proton exchange membrane preparation device (1) is equipped with a control cabinet (2) at the front end, and a guardrail (3) is fixedly connected to the top of the proton exchange membrane preparation device (1), and a solution tank (6) is fixedly connected to the top of the guardrail (3).

9. The proton exchange membrane preparation apparatus for fuel cells according to claim 8, characterized in that, The inner side of the guardrail (3) is fixedly connected to a linear track (12), and the outer side of the linear track (12) is movably connected to a sliding seat (13). The front end of the sliding seat (13) is fixedly connected to one side of the solution pouring device (9). The top of the solution pouring device (9) and one side of the solution tank (6) are both fixedly connected to pipe fixing devices (7).

10. The apparatus for preparing a proton exchange membrane for a fuel cell according to claim 9, characterized in that, The pipe fixing device (7) is equipped with a connecting hose (8) inside. The top of the proton exchange membrane preparation device (1) has two rectangular holes, and a collection frame (15) is fixedly connected inside each rectangular hole. The collection frame (15) is located below the two glass plates (5).

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