Air-cooled fuel cell membrane electrode assembly processing device

Abstract

The utility model discloses a kind of air-cooled fuel cell processing membrane electrode assembly devices, it is related to battery processing technical field, including lower clamp seat, positioning frame and upper clamping plate, the center of the lower clamp seat is provided with second installation cavity, the inside of the second installation cavity is provided with boss, the lower end of the boss is provided with first air extractor, the upper end rectangular array of the boss is provided with multiple second through holes, the lower end of the upper clamping plate is provided with first installation cavity, the inside of the first installation cavity is provided with adsorption plate, the upper end of the adsorption plate is provided with second air extractor, the lower end of the adsorption plate is provided with recess, the top rectangular array of the recess is provided with multiple first through holes, the positioning carrier of the assembly device upper and lower clamping plate installation is fixed using plug-in mode, corresponding size positioning carrier can be replaced according to the size of membrane electrode and installed to upper and lower clamping plate, can satisfy the assembly demand of multiple sizes of membrane electrode, improve membrane electrode assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery processing technology, specifically to a membrane electrode assembly device for air-cooled fuel cells. Background Technology

[0002] Air-cooled fuel cells dissipate heat through forced ventilation or natural air convection. They possess advantages such as strong environmental adaptability, compact structure, low operating costs, and fast start-up speed, and have enormous application potential in numerous fields, including backup power, transportation, and off-grid power supply. The manufacturing of air-cooled fuel cells typically includes design, component manufacturing, assembly, and testing. Membrane electrode assembly is a crucial step in fuel cell production. The membrane electrode is the core component of a proton exchange membrane fuel cell, and its performance and durability directly determine the fuel cell's performance. However, the proton exchange membrane in the membrane electrode is relatively thin and has poor mechanical strength. During operation, it can deform, twist, and wrinkle due to water absorption. Sealing the proton exchange membrane with a frame to form a five-in-one membrane electrode ensures the flatness of the proton exchange membrane and improves its strength, thereby enhancing the stability of the membrane electrode.

[0003] Chinese utility model patent CN213340452U discloses a membrane electrode assembly device, including an electrostatic generator and a clamp. The electrostatic generator applies static electricity to the clamp, using electrostatic adsorption to position the proton exchange membrane and sealing frame within the clamp. This utility model applies static electricity to the clamp using an electrostatic generator, and during membrane electrode assembly, utilizes high-voltage electrostatic adsorption technology to position and fix the proton exchange membrane and sealing frame within the clamp. This eliminates the need for clamp modification, making the membrane electrode assembly device simple in structure, easy to operate, and highly adaptable. However, because it relies on a clamp for positioning and assembly, and the clamp structure is fixed, it can only assemble membrane electrodes of a fixed size. This makes it inconvenient to assemble membrane electrodes of multiple sizes, resulting in poor applicability, reduced assembly efficiency, and an inability to meet usage requirements. Utility Model Content

[0004] The purpose of this utility model is to provide a membrane electrode assembly device for processing air-cooled fuel cells, so as to solve the problems mentioned in the background art. The existing assembly device uses a clamp for positioning and assembly. The clamp structure is fixed and can only assemble membrane electrodes of a fixed size. It is inconvenient to assemble and use membrane electrodes of multiple sizes, has poor applicability, reduces membrane electrode assembly efficiency, and cannot meet the needs of use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a membrane electrode assembly device for air-cooled fuel cells, comprising a lower clamping seat, a positioning frame, and an upper clamping plate, characterized in that: a hollow groove is provided at the center of the positioning frame;

[0006] A second mounting cavity is provided at the center of the lower clamp, and a boss is provided inside the second mounting cavity. The boss is inserted into the lower clamp. A first reserved cavity is provided inside the boss. A first exhaust fan is provided at the lower end of the boss and is fixedly connected to the boss. A plurality of second through holes are provided in a rectangular array at the upper end of the boss. The second through holes and the first exhaust fan are connected to the first reserved cavity.

[0007] The lower end of the upper clamping plate is provided with a first mounting cavity, and an adsorption plate is provided inside the first mounting cavity. The adsorption plate is inserted into the upper clamping plate, and a second reserved cavity is provided inside the adsorption plate.

[0008] The upper end of the adsorption plate is provided with a second exhaust fan, which is fixedly connected to the adsorption plate. The lower end of the adsorption plate is provided with a groove. The top of the groove is provided with a rectangular array of multiple first through holes, which are connected to the second exhaust fan and the second reserved cavity. The upper end of the upper clamping plate is provided with an opening groove, which is connected to the first mounting cavity. An electrical control box is provided on one side of the lower clamping seat, and the electrical control box is connected to the lower clamping seat by screws.

[0009] Preferably, a first electric heating strip is provided at the top of the first reserved cavity, and the first electric heating strip is connected to the boss by screws; a second electric heating strip is provided at the bottom of the second reserved cavity, and the second electric heating strip is connected to the adsorption plate by screws.

[0010] Preferably, a second connecting hole is provided on the sidewalls on both sides of the boss, and a first connecting bolt is provided on both sides of the lower clamp, with the first connecting bolts corresponding to the second connecting holes.

[0011] Preferably, a first connecting hole is provided on each side wall of the adsorption plate, and a second connecting bolt is provided on each side of the upper clamping plate, with the second connecting bolts corresponding to the first connecting holes.

[0012] Preferably, a second sealing ring is provided on the outside of the boss, and the second sealing ring is integrally connected to the boss; a first sealing ring is provided on the outside of the adsorption plate, and the first sealing ring is integrally connected to the adsorption plate.

[0013] Preferably, a connecting frame is provided above one side of the lower clamping seat, and the connecting frame is fixedly connected to the lower clamping seat. An electric push rod is provided above the upper clamping plate, and the electric push rod is connected to the connecting frame by screws.

[0014] Preferably, the telescopic end of the electric actuator is connected to the upper end of the upper clamping plate, a sliding groove is provided on the inner wall of the connecting frame, a slider is provided inside the sliding groove, and the slider is slidably connected to the connecting frame, and the slider is fixedly connected to the upper clamping plate.

[0015] Preferably, the lower end of the adsorption plate is provided with positioning holes, and there are four positioning holes, which are located on one side of the four corners of the groove.

[0016] Preferably, a protruding post is provided at the upper end of each of the four corners of the positioning frame, and four protruding posts are provided. The protruding posts are fixedly connected to the positioning frame. A magnet is provided on each protruding post. The protruding posts are correspondingly arranged with positioning holes. An iron block corresponding to the magnet is provided inside the positioning hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model device, through the arrangement of a boss, an adsorption plate, a first mounting cavity, a second mounting cavity, a first connecting bolt, a second connecting bolt, a first connecting hole, and a second connecting hole, allows the boss to be inserted into the second mounting cavity and connected to the lower clamp. The first connecting bolt passes through the lower clamp and is screwed into the second connecting hole, thus limiting the insertion of the boss. The adsorption plate is inserted into the first mounting cavity and connected to the upper clamp. The second connecting bolt passes through the upper clamp and is screwed into the first connecting hole, thus limiting the insertion of the adsorption plate. This facilitates the assembly and disassembly of the boss and the adsorption plate, and meets the assembly requirements of membrane electrodes of different specifications.

[0019] 2. The utility model device uses a first electric heating strip and a second electric heating strip. The first electric heating strip heats the lower frame of the CCM, and the second electric heating strip heats the upper frame of the CCM, softening the adhesive layer on the frame and better connecting the frame adhesive layer to the CCM, thereby improving the adhesion and assembly firmness of the membrane electrode. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a structural diagram showing the connection between the adsorption plate and the upper clamping plate of this utility model;

[0022] Figure 3 For the present utility model Figure 1 A magnified view of a portion of area A;

[0023] Figure 4 This is a diagram showing the connection relationship between the boss and the lower clamp of this utility model;

[0024] Figure 5 This is a diagram showing the connection relationship between the adsorption plate and the upper clamping plate of this utility model.

[0025] In the diagram: 1. Lower clamp; 2. Electrical control box; 3. Boss; 4. Positioning frame; 5. Hollowed-out groove; 6. Protruding column; 7. Upper clamp; 8. Connecting frame; 9. Electric push rod; 10. Adsorption plate; 11. First connecting bolt; 12. Second connecting bolt; 13. Opening groove; 14. First mounting cavity; 15. Positioning hole; 16. Groove; 17. First through hole; 18. First sealing ring; 19. First connecting hole; 20. Sliding groove; 21. Sliding block; 22. Second mounting cavity; 23. Second sealing ring; 24. Second connecting hole; 25. First reserved cavity; 26. Second through hole; 27. First electric heating strip; 28. First exhaust fan; 29. ​​Second reserved cavity; 30. Second exhaust fan; 31. Second electric heating strip. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Please see Figure 1-5 An embodiment of this utility model is provided: a processing membrane electrode assembly device for an air-cooled fuel cell, including a lower clamping seat 1, a positioning frame 4 and an upper clamping plate 7. A hollow groove 5 is provided at the center of the positioning frame 4, and a second mounting cavity 22 is provided at the center of the lower clamping seat 1. A boss 3 is provided inside the second mounting cavity 22 and the boss 3 is inserted into the lower clamping seat 1. A first reserved cavity 25 is provided inside the boss 3.

[0028] The lower end of the boss 3 is provided with a first exhaust fan 28, and the first exhaust fan 28 is fixedly connected to the boss 3. The upper end of the boss 3 is provided with a rectangular array of multiple second through holes 26. The second through holes 26 and the first exhaust fan 28 are connected to the first reserved cavity 25. The lower end of the upper clamping plate 7 is provided with a first mounting cavity 14. The first mounting cavity 14 is provided with an adsorption plate 10, and the adsorption plate 10 is inserted into the upper clamping plate 7. The adsorption plate 10 is provided with a second reserved cavity 29. The upper end of the adsorption plate 10 is provided with a second exhaust fan 30, and the second exhaust fan 30 is fixedly connected to the adsorption plate 10. The lower end of the adsorption plate 10 is provided with a groove 16. The top of the groove 16 is provided with a rectangular array of multiple first through holes 17, and the first through holes 17 and the second exhaust fan 30 are connected to the second reserved cavity 29.

[0029] An opening groove 13 is provided at the upper end of the upper clamping plate 7, and the opening groove 13 is connected to the first mounting cavity 14. An electric control box 2 is provided on one side of the lower clamping seat 1, and the electric control box 2 is connected to the lower clamping seat 1 by screws. A first electric heating strip 27 is provided at the top of the first reserved cavity 25, and the first electric heating strip 27 is connected to the boss 3 by screws. A second electric heating strip 31 is provided at the bottom of the second reserved cavity 29, and the second electric heating strip 31 is connected to the adsorption plate 10 by screws. A connecting frame 8 is provided above one side of the lower clamping seat 1, and the connecting frame 8 is fixedly connected to the lower clamping seat 1. An electric push rod 9 is provided above the upper clamping plate 7, and the electric push rod 9 is connected to the connecting frame 8 by screws. The telescopic end of the electric push rod 9 is connected to the upper end of the upper clamping plate 7.

[0030] In use: Select appropriate bosses 3 and adsorption plates 10 according to the size of the membrane electrode and install them with the lower clamp 1 and upper clamp 7 respectively. Place the lower frame of the CCM flat on the boss 3 with the adhesive layer of the lower frame facing upwards. Turn on the first exhaust fan 28 to generate suction, which will remove the air between the lower frame of the CCM and the boss 3 to create negative pressure. Under the action of negative pressure, the lower frame of the CCM will be adsorbed and fixed on the boss 3. Align the boss 3 with the hollow groove 5 and insert it to connect with the positioning frame 4. Lay the CCM flat in the hollow groove 5 on the positioning frame 4, and then put the upper frame of the CCM into the recess. In slot 16, the upper frame of the CCM is placed with the adhesive layer facing down. The second exhaust fan 30 is turned on to generate suction, which removes the air between the upper frame of the CCM and the adsorption plate 10 to form a negative pressure. Under the action of negative pressure, the upper frame of the CCM is adsorbed and fixed on the adsorption plate 10. The electric push rod 9 is driven to move the upper clamping plate 7 down, and the adsorption plate 10 is lowered and connected to the positioning frame 4. The first electric heating strip 27 is turned on to heat the lower frame of the CCM, and the second electric heating strip 31 is turned on to heat the upper frame of the CCM, so that the lower frame of the CCM and the upper frame of the CCM are hot-pressed together with the CCM.

[0031] Please see Figure 1 , Figure 4 and Figure 5 Each side wall of the protrusion 3 has a second connecting hole 24. Each side of the lower clamp 1 has a first connecting bolt 11, and the first connecting bolt 11 is corresponding to the second connecting hole 24. Each side wall of the adsorption plate 10 has a first connecting hole 19. Each side of the upper clamp 7 has a second connecting bolt 12, and the second connecting bolt 12 is corresponding to the first connecting hole 19. The first connecting bolt 11 passes through the lower clamp 1 and is screwed into the second connecting hole 24 to limit the insertion of the protrusion 3. The second connecting bolt 12 passes through the upper clamp 7 and is screwed into the first connecting hole 19 to limit the insertion of the adsorption plate 10, ensuring the stability of the installed protrusion 3 and adsorption plate 10, facilitating the replacement of the protrusion 3 and adsorption plate 10, and meeting the assembly of membrane electrodes of different specifications.

[0032] Please see Figure 4 and Figure 5 The boss 3 is provided with a second sealing ring 23 on its outside, and the second sealing ring 23 is connected to the boss 3 as a whole. The adsorption plate 10 is provided with a first sealing ring 18 on its outside, and the first sealing ring 18 is connected to the adsorption plate 10 as a whole. The second sealing ring 23 fills the gap between the boss 3 and the lower clamp 1, and the first sealing ring 18 fills the gap between the adsorption plate 10 and the upper clamp 7, thereby improving the stability of the installed boss 3 and adsorption plate 10.

[0033] Please see Figure 1 , Figure 2 and Figure 3 The inner wall of the connecting frame 8 is provided with a sliding groove 20, and a slider 21 is provided inside the sliding groove 20. The slider 21 is slidably connected to the connecting frame 8 and fixedly connected to the upper clamping plate 7. The lower end of the adsorption plate 10 is provided with positioning holes 15. There are four positioning holes 15, and the four positioning holes 15 are located on one side of the four corners of the groove 16. The upper end of each of the four corners of the positioning frame 4 is provided with a protruding post 6. There are four protruding posts 6, and the protruding posts 6 are fixedly connected to the positioning frame 4. A magnet is provided on the protruding post 6. The iron block corresponding to the magnet is provided inside the positioning hole 15 to prevent the positioning frame 4 from falling off under the action of gravity. The protruding posts 6 are correspondingly set with the positioning holes 15. The slider 21 slides along the sliding groove 20 as the upper clamping plate 7 rises and falls, guiding the rising and falling upper clamping plate 7 to ensure that the lower end surface of the adsorption plate 10 is flat. The protruding posts 6 are aligned with the positioning holes 15 and inserted to connect with the adsorption plate 10, accurately connecting the positioning frame 4 and the adsorption plate 10, and improving the assembly accuracy of the membrane electrode.

[0034] Working principle: Select appropriate boss 3 and adsorption plate 10 according to the size of the membrane electrode. Boss 3 is inserted into the second mounting cavity 22. The first connecting bolt 11 passes through the lower clamp 1 and is screwed into the second connecting hole 24 to limit the insertion of the boss 3. Adsorption plate 10 is inserted into the first mounting cavity 14. The second connecting bolt 12 passes through the upper clamp 7 and is screwed into the first connecting hole 19 to limit the insertion of the adsorption plate 10. Boss 3 and adsorption plate 10 are installed. The lower frame of the CCM is placed flat on the boss 3 with the adhesive layer of the lower frame facing upwards. The first exhaust fan 28 is turned on to generate suction, which removes the air between the lower frame of the CCM and the boss 3 to create negative pressure. Under the action of negative pressure, the lower frame of the CCM is adsorbed and fixed to the boss. 3. Align the boss 3 with the hollow groove 5 and insert it into the positioning frame 4. Lay the CCM flat in the hollow groove 5 on the positioning frame 4. Then place the upper frame of the CCM into the groove 16 with the adhesive layer of the upper frame of the CCM facing down. Turn on the second exhaust fan 30 to generate suction and draw away the air between the upper frame of the CCM and the adsorption plate 10 to form a negative pressure. Under the action of negative pressure, the upper frame of the CCM is adsorbed and fixed on the adsorption plate 10. Drive the electric push rod 9 to drive the upper clamping plate 7 to descend and lower the adsorption plate 10 to connect with the positioning frame 4. Turn on the first electric heating strip 27 to heat the lower frame of the CCM and turn on the second electric heating strip 31 to heat the upper frame of the CCM. Heat-press the lower frame of the CCM and the upper frame of the CCM with the CCM.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wind-cooled fuel cell membrane electrode assembly processing device, comprising a lower clamp base (1), a positioning frame (4) and an upper clamp plate (7), characterized in that: A hollow groove (5) is provided at the center of the positioning frame (4); The lower clamp (1) is provided with a second mounting cavity (22) at its center. The second mounting cavity (22) is provided with a boss (3) inside, and the boss (3) is inserted into the lower clamp (1). The boss (3) is provided with a first reserved cavity (25) inside. The lower end of the boss (3) is provided with a first exhaust fan (28), and the first exhaust fan (28) is fixedly connected to the boss (3). The upper end of the boss (3) is provided with a rectangular array of multiple second through holes (26). The second through holes (26) and the first exhaust fan (28) are connected to the first reserved cavity (25). The lower end of the upper clamping plate (7) is provided with a first mounting cavity (14), and an adsorption plate (10) is provided inside the first mounting cavity (14). The adsorption plate (10) is inserted into the upper clamping plate (7), and a second reserved cavity (29) is provided inside the adsorption plate (10). The upper end of the adsorption plate (10) is provided with a second exhaust fan (30), and the second exhaust fan (30) is fixedly connected to the adsorption plate (10). The lower end of the adsorption plate (10) is provided with a groove (16). The top of the groove (16) is provided with a rectangular array of first through holes (17), and the first through holes (17) and the second exhaust fan (30) are connected to the second reserved cavity (29). The upper end of the upper clamping plate (7) is provided with an opening groove (13), and the opening groove (13) is connected to the first mounting cavity (14). An electrical control box (2) is provided on one side of the lower clamping seat (1), and the electrical control box (2) is connected to the lower clamping seat (1) by screws.

2. The air-cooled fuel cell membrane electrode assembly apparatus according to claim 1, characterized in that: The top of the first reserved cavity (25) is provided with a first electric heating strip (27), and the first electric heating strip (27) is connected to the boss (3) by screws. The bottom of the second reserved cavity (29) is provided with a second electric heating strip (31), and the second electric heating strip (31) is connected to the adsorption plate (10) by screws.

3. The air-cooled fuel cell membrane electrode assembly apparatus according to claim 1, characterized in that: A second connecting hole (24) is provided on the side wall of both sides of the boss (3), and a first connecting bolt (11) is provided on both sides of the lower clamp (1), and the first connecting bolt (11) is correspondingly provided with the second connecting hole (24).

4. The air-cooled fuel cell membrane electrode assembly apparatus according to claim 1, characterized in that: A first connecting hole (19) is provided on each side wall of the adsorption plate (10), and a second connecting bolt (12) is provided on each side of the upper clamping plate (7), and the second connecting bolt (12) is provided in correspondence with the first connecting hole (19).

5. The air-cooled fuel cell membrane electrode assembly apparatus according to claim 1, characterized in that: The boss (3) is provided with a second sealing ring (23) on its outside, and the second sealing ring (23) is connected to the boss (3) as a whole. The adsorption plate (10) is provided with a first sealing ring (18) on its outside, and the first sealing ring (18) is connected to the adsorption plate (10) as a whole.

6. The air-cooled fuel cell membrane electrode assembly apparatus according to claim 1, characterized in that: A connecting frame (8) is provided above one side of the lower clamp (1), and the connecting frame (8) is fixedly connected to the lower clamp (1). An electric push rod (9) is provided above the upper clamp (7), and the electric push rod (9) is connected to the connecting frame (8) by screws.

7. The air-cooled fuel cell membrane electrode assembly apparatus according to claim 6, characterized in that: The telescopic end of the electric push rod (9) is connected to the upper end of the upper clamping plate (7). A sliding groove (20) is provided on the inner wall of the connecting frame (8). A slider (21) is provided inside the sliding groove (20), and the slider (21) is slidably connected to the connecting frame (8). The slider (21) is fixedly connected to the upper clamping plate (7).

8. The air-cooled fuel cell membrane electrode assembly apparatus according to claim 1, characterized in that: The lower end of the adsorption plate (10) is provided with positioning holes (15), and there are four positioning holes (15), which are located on one side of the four corners of the groove (16).

9. The air-cooled fuel cell membrane electrode assembly apparatus according to claim 8, characterized in that: Each of the four corners of the positioning frame (4) is provided with a protruding post (6). There are four protruding posts (6), and the protruding posts (6) are fixedly connected to the positioning frame (4). A magnet is provided on the protruding post (6). The protruding post (6) is correspondingly provided with the positioning hole (15). An iron block corresponding to the magnet is provided inside the positioning hole (15).

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