A solid oxide fuel cell encapsulation structure and an encapsulation method

Abstract

The present invention discloses a solid oxide fuel cell packaging structure and a packaging method, relating to the technical field of fuel cell packaging. It includes a housing, and U-shaped positioning plates are installed on the inner wall of the housing on both sides of the membrane electrode. A buckling displacement preventing member is arranged inside the U-shaped positioning plates, and pre-connected docking units are arranged at both ends of the housing. By setting the buckling displacement preventing member in the present invention, during the rotation of the rotating coupling shaft, the turntable drives the insertion rod to move reciprocally, so that the pressure frame plate moves towards the electrode plate, thereby making the pressure frame plate fit with the nut. Then, the insertion frame is pulled to make the flow blocking plug block block the diversion pipe, and at the same time, the pull plate is loosened to make the locking pin insert into the limit insertion pipe, so that the aqueous solution inside the guide cylinder loses the flowing space. In this way, the nut cannot rotate relative to the threaded column, preventing the stack from deforming after a period of time due to uneven force on the electrode plate during use, thereby improving the overall packaging effect of the battery.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cell packaging, and specifically to a solid oxide fuel cell packaging structure and a packaging method. Background Art

[0002] Solid oxide fuel cells belong to the third generation of batteries and have high current density and power sealing. They can directly use hydrogen, hydrocarbons, methanol, etc. as fuels without using precious metals as catalysts, and at the same time avoid the corrosion and sealing problems of acid-base electrolytes or molten salt electrolytes in medium- and low-temperature fuel cells. Fuel cells usually need to assemble multiple single cells in series to form a fuel cell stack for use. The fuel cell assembly technology determines the sealing performance, contact performance, and mass transfer characteristics of the stack, and ultimately affects the output characteristics of the battery.

[0003] In the prior art, a fuel cell stack is usually formed by stacking multiple membrane electrode assemblies and bipolar plates in series, and is held together by bolt assemblies or bolts plus hoop bands. This method of bolt tightening or bolt plus hoop band tightening is prone to bolt loosening, and even deformation of the stack may occur after a period of time due to uneven stress on each bolt. Summary of the Invention

[0004] The purpose of the present invention is to provide a solid oxide fuel cell packaging structure and a packaging method to solve the problem that bolt loosening easily occurs when a bolt assembly compresses a membrane electrode.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A solid oxide fuel cell packaging structure includes a housing. There is a placement plate at the bottom of the inner wall of the housing. A bipolar plate is placed on the top of the placement plate. Multiple membrane electrodes are stacked on the top of the bipolar plate, and a bipolar plate is also stacked on the top of the membrane electrodes. Threaded posts are provided at the edges of the bipolar plates, and nuts are sleeved on the threaded posts. U-shaped positioning plates are installed on the inner wall of the housing on both sides of the membrane electrodes. Buckling displacement preventing members are provided inside the U-shaped positioning plates. Pre-connected docking units are provided at both ends of the housing, and cover plates are connected to both ends of the housing through the pre-connected docking units.

[0006] As a further solution of the present invention: The buckling and displacement-blocking member includes a bidirectional lead screw disposed inside the U-shaped positioning plate. Two movable sleeve plates are sleeved on the bidirectional lead screw. The two movable sleeve plates are symmetrically arranged along the vertical central axis of the bidirectional lead screw. The top and bottom of the bidirectional lead screw are rotatably connected to inclined connecting rods through rotating shafts. The top of the inclined connecting rod is rotatably connected to an L-shaped side plate through a rotating shaft. The top of the L-shaped side plate is provided with a pressing frame plate located above the electrode plate. A through hole is formed in the pressing frame plate. One side of the U-shaped positioning plate is rotatably connected to a rotating connecting shaft. Second transmission bevel gears are provided at both ends of the rotating connecting shaft. A first transmission bevel gear meshing with the second transmission bevel gear is provided at one end of the bidirectional lead screw close to the rotating connecting shaft. A turntable is provided on the rotating connecting shaft. A displacement pin is provided inside the turntable. A straight connecting guide rail is sleeved on the displacement pin. A support frame is provided on the U-shaped positioning plate outside the rotating connecting shaft. A preparation cylinder is installed on one side of the support frame away from the U-shaped positioning plate. A diversion pipe is installed at one end of the preparation cylinder. A flow-blocking chamber is provided on the diversion pipe. A guiding cylinder is installed at the end of the diversion pipe away from the preparation cylinder. A plug rod extending into the guiding cylinder is provided outside the straight connecting guide rail. A first piston block is installed at the end of the plug rod away from the straight connecting guide rail. A plug frame is inserted into the flow-blocking chamber. A flow-blocking plug block located inside the flow-blocking chamber is provided at the bottom of the plug frame. A locking pin is inserted into the top of the plug frame. A second telescopic spring connected to the plug frame is provided on the locking pin. A pull plate is provided at the end of the locking pin away from the guiding cylinder. Two vertically arranged limiting insertion pipes are provided at the end of the guiding cylinder close to the diversion pipe. A second piston block is slidably connected inside the preparation cylinder. A first telescopic spring connected to the inner wall of the preparation cylinder is provided on the second piston block.

[0007] As a further solution of the present invention: The diameter of the through hole is larger than the end face diameter of the threaded column, and the diameter of the through hole is smaller than the circumscribed circle diameter of the nut.

[0008] As a further solution of the present invention: The number of the bidirectional lead screws is two, and the two bidirectional lead screws are symmetrically arranged along the vertical central axis of the U-shaped positioning plate. Threaded holes matching the bidirectional lead screws are provided on the movable sleeve plates.

[0009] As a further solution of the present invention: The diameter of the locking pin is equal to the inner wall diameter of the limiting insertion pipe, and the diameter of the flow-blocking plug block is equal to the diameter of the diversion pipe.

[0010] As a further solution of the present invention: The volume inside the guiding cylinder is twice the volume inside the preparation cylinder, and the center of the turntable and the center of the displacement pin are in a displaced state.

[0011] As a further solution of the present invention: The pre-connection docking unit includes baffle plates installed on both sides of the pressing frame plate. Card slots are provided at both ends of the housing, magnetic attraction sheets are laid on the inner walls of the card slots, the top of the baffle plate extends into the interior of the card slots, and a pre-connection card plate that fits the card slots is provided on one side of the cover plate.

[0012] As a further solution of the present invention: Through holes with lengths and widths both larger than the length and width of the top cross-section of the baffle plate are provided on the inner wall of the housing.

[0013] As a further solution of the present invention: The length of the pre-connection card plate fits the size of the card slot, and the pre-connection card plate is of a cuboid structure.

[0014] The present invention also discloses a method for encapsulating a solid oxide fuel cell. Using the above-mentioned solid oxide fuel cell encapsulation structure, it includes the following steps:

[0015] S1: First, stack multiple membrane electrodes above the electrode plate, and then place another electrode plate above the membrane electrodes to form a stack of electrode plates, membrane electrodes, and electrode plates.

[0016] S2: Apply pressure to the electrode plate on the membrane electrode through an external pressing device to uniformly press the sample, thereby obtaining a solid green body.

[0017] S3: Then connect the two stacked electrode plates by applying pressure through the threaded posts and nuts.

[0018] S4: Place the assembled battery on the placement plate, and then block and limit the nut on the threaded post by operating the buckling blocking and shifting member to prevent the nut from moving relative to the threaded post. Then, realize the pre-connection of the cover plate and the housing by operating the pre-connection docking unit, and then fix the cover plate with external screws.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. By setting the buckling blocking and shifting member, during the rotation of the rotating shaft, the turntable drives the insertion rod to move reciprocally through the offset pin and the direct connection guide rail, so as to move the first piston block. By rotating the rotating shaft, the two movable template plates on the bidirectional screw rod move in opposite directions, so that the pressing frame plate moves towards the electrode plate, so that the pressing frame plate fits the nut. Then, pull the insertion frame so that the flow blocking plug blocks the diversion pipe, and at the same time loosen the pull plate so that the locking pin is inserted into the limit insertion tube, so that the aqueous solution inside the guide cylinder loses the flow space. In this way, the nut cannot rotate relative to the threaded post, preventing the stack from deforming after a period of time due to uneven force on the electrode plate during use, thereby improving the overall encapsulation effect of the battery;

[0021] 2. By setting up a pre-connected docking unit, when the pressing frame plate is not in contact with the nut, the top of the blocking plate is located inside the clamping groove. At this time, the top of the blocking plate will block one side of the clamping groove, so that the cover plate cannot be in contact with the housing. Then, as the pressing frame plate comes into contact with the nut, the blocking plate separates from the clamping groove as the pressing frame plate moves. Then, the pre-connecting card plate is buckled into the clamping groove. At this time, the magnetic sheet will adsorb one end of the pre-connecting card plate away from the cover plate, so as to realize the pre-connection of the cover plate and the housing, and at the same time align the mounting holes on the housing and the cover plate. Then, the cover plate can be fixed with screws, thus realizing the rapid encapsulation of the battery and further improving the encapsulation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0023] Figure 2 of the present invention Figure 1 enlarged view of part A in;

[0024] Figure 3 is a schematic structural diagram of the buckling blocking and moving member of the present invention;

[0025] Figure 4 is a schematic connection diagram of the pressing frame plate and the bidirectional lead screw of the present invention;

[0026] Figure 5 is a schematic connection diagram of the guiding cylinder and the preparatory cylinder of the present invention;

[0027] Figure 6 is a schematic connection diagram of the U-shaped positioning plate and the preparatory cylinder of the present invention;

[0028] Figure 7 is a schematic connection diagram of the guiding cylinder and the flow blocking chamber of the present invention;

[0029] Figure 8 is a schematic internal structure diagram of the flow blocking chamber of the present invention.

[0030] In the figure: 1. housing; 2. cover plate; 3. electrode plate; 4. placement plate; 5. membrane electrode; 6. threaded post; 7. nut; 8. pre-connected card plate; 9. pressure-positioning frame plate; 10. positioning slot; 11. partition plate; 12. magnetic attraction piece; 13. U-shaped positioning plate; 14. bidirectional lead screw; 15. inclined connecting rod; 16. L-shaped side plate; 17. turntable; 18. support frame; 19. guiding cylinder; 20. preparation cylinder; 21. rotating coupling shaft; 22. first driving bevel gear; 23. movable sleeve plate; 24. passing hole; 25. inserting rod; 26. first piston block; 27. direct connection guide rail; 28. offset pin; 29. second driving bevel gear; 30. diversion pipe; 31. second piston block; 32. first telescopic spring; 33. limit inserting pipe; 34. inserting frame; 35. flow-blocking bin; 36. pulling plate; 37. second telescopic spring; 38. locking pin; 39. flow-blocking plug block. Detailed implementation manners

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", and "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to the overall structure of the present invention.

[0033] Please refer to Figures 1 to 8, in an embodiment of the present invention, a solid oxide fuel cell packaging structure includes a housing 1. At the bottom of the inner wall of the housing 1, there is a placement plate 4. On the top of the placement plate 4, there is a plate electrode 3. Multiple membrane electrodes 5 are stacked on the top of the plate electrode 3. Similarly, a plate electrode 3 is stacked on the top of the membrane electrode 5. At the edge of the plate electrode 3, there is a threaded post 6, and a nut 7 is sleeved on the threaded post 6. On the inner wall of the housing 1, there are U-shaped positioning plates 13 located on both sides of the membrane electrode 5. A buckling and displacement prevention member is provided inside the U-shaped positioning plate 13. At both ends of the housing 1, there is a pre-connected docking unit. The two ends of the housing 1 are connected to a cover plate 2 through the pre-connected docking unit.

[0034] In this embodiment: First, stack multiple membrane electrodes 5 above the plate electrode 3, and then place another plate electrode 3 above the membrane electrode 5 to form a stack of plate electrode 3, membrane electrode 5, and plate electrode 3. Then, apply pressure to the plate electrode 3 on the membrane electrode 5 and other means to uniformly press the sample, thereby obtaining a solid green body. Then, connect the two stacked plate electrodes 3 by applying pressure through the threaded post 6 and the nut 7. Then, place the assembled battery on the placement plate 4. Subsequently, operate the buckling and displacement prevention member to block and limit the nut 7 on the threaded post 6, so as to prevent the nut 7 from moving relative to the threaded post 6. Then, operate the pre-connected docking unit to achieve the pre-connection of the cover plate 2 and the housing 1. Subsequently, fix the cover plate 2 with external screws.

[0035] Please refer specifically to Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8, the buckling and displacement-blocking member includes a bidirectional lead screw 14 arranged inside the U-shaped positioning plate 13. Two movable sleeve plates 23 are sleeved on the bidirectional lead screw 14. The two movable sleeve plates 23 are symmetrically arranged along the vertical central axis of the bidirectional lead screw 14. The top and bottom of the bidirectional lead screw 14 are rotatably connected to inclined connecting rods 15 through rotating shafts. The top of the inclined connecting rod 15 is rotatably connected to an L-shaped side plate 16 through a rotating shaft. A pressing frame plate 9 located above the electrode plate 3 is arranged at the top of the L-shaped side plate 16. A through-hole 24 is formed in the pressing frame plate 9. One side of the U-shaped positioning plate 13 is rotatably connected to a rotating connecting shaft 21. Second transmission bevel gears 29 are arranged at both ends of the rotating connecting shaft 21. A first transmission bevel gear 22 meshing with the second transmission bevel gear 29 is arranged at one end of the bidirectional lead screw 14 close to the rotating connecting shaft 21. A turntable 17 is arranged on the rotating connecting shaft 21. A offset pin 28 is arranged inside the turntable 17. A direct connecting guide rail 27 is sleeved on the offset pin 28. A support frame 18 located outside the rotating connecting shaft 21 is arranged on the U-shaped positioning plate 13. A preparation cylinder 20 is installed on one side of the support frame 18 away from the U-shaped positioning plate 13. A diversion pipe 30 is installed at one end of the preparation cylinder 20. A flow-blocking chamber 35 is arranged on the diversion pipe 30. A guide cylinder 19 is installed at the end of the diversion pipe 30 away from the preparation cylinder 20. A plug rod 25 extending into the interior of the guide cylinder 19 is arranged outside the direct connecting guide rail 27. A first piston block 26 is installed at one end of the plug rod 25 away from the direct connecting guide rail 27. A plug frame 34 is inserted into the flow-blocking chamber 35. A flow-blocking plug block 39 located inside the flow-blocking chamber 35 is arranged at the bottom of the plug frame 34. A locking pin 38 is inserted into the top of the plug frame 34. A second telescopic spring 37 connected to the plug frame 34 is arranged on the locking pin 38. A pull plate 36 is arranged at one end of the locking pin 38 away from the guide cylinder 19. Two vertically arranged limit insertion pipes 33 are arranged at one end of the guide cylinder 19 close to the diversion pipe 30. A second piston block 31 is slidably connected inside the preparation cylinder 20. A first telescopic spring 32 connected to the inner wall of the preparation cylinder 20 is arranged on the second piston block 31.

[0036] In this embodiment: After the battery assembly is placed on the placement plate 4, pull the pull plate 36 to separate the pull plate 36 from one of the limit insertion tubes 33. Then, pull the insertion frame 34 so that the flow-blocking plug 39 loses its block on the diversion tube 30. Then, rotate the rotary coupling shaft 21. During the rotation of the rotary coupling shaft 21, the turntable 17 drives the insertion rod 25 to reciprocate through the offset pin 28 and the direct connection guide rail 27, so as to make the first piston block 26 push the aqueous solution inside the guide cylinder 19 into the preparation cylinder 20, or the aqueous solution inside the preparation cylinder 20 is drawn by the first piston block 26 and passes through the diversion tube 30 into the guide cylinder 19. By rotating the rotary coupling shaft 21, the second drive bevel gear 29 drives the first drive bevel gear 22 to rotate, so as to make the two movable sleeve plates 23 on the bidirectional lead screw 14 move in opposite directions. In this way, the inclined connecting rod 15 can pull the L-shaped side plate 16, so that the pressure frame plate 9 moves towards the electrode plate 3, so as to make the pressure frame plate 9 fit with the nut 7. Then, pull the insertion frame 34 so that the flow-blocking plug 39 blocks the diversion tube 30, and at the same time loosen the pull plate 36 so that the locking pin 38 is inserted into the limit insertion tube 33, so as to make the aqueous solution inside the guide cylinder 19 lose the flow space, so as to lock and fix the rotary coupling shaft 21 and prevent the pressure frame plate 9 from moving. In this way, the nut 7 cannot rotate relative to the threaded column 6, preventing the stack from deforming after a period of time due to uneven force on the electrode plate 3 during use, thus improving the overall packaging effect of the battery.

[0037] Please refer specifically to Figure 3 、 Figure 4 , the diameter of the through-hole 24 is larger than the end face diameter of the threaded column 6, and the diameter of the through-hole 24 is smaller than the outer diameter of the circumcircle of the nut 7.

[0038] In this embodiment: Through this structure, it is prevented that the pressure frame plate 9 rubs against the threaded column 6 when moving towards the electrode plate 3, and at the same time, it is also prevented that the nut 7 passes through the through-hole 24 and affects the blocking effect of the pressure frame plate 9 on the nut 7.

[0039] Please refer specifically to Figure 3 、 Figure 4 , the number of the bidirectional lead screws 14 is set to two, and the two bidirectional lead screws 14 are symmetrically arranged along the vertical central axis of the U-shaped positioning plate 13. The movable sleeve plate 23 is provided with a threaded hole matching the bidirectional lead screw 14.

[0040] In this embodiment: By setting this structure, the function of limiting the movable sleeve plate 23 on the bidirectional lead screw 14 is realized.

[0041] Please refer specifically to Figure 7 , the diameter of the locking pin 38 is equal to the inner wall diameter of the limit insertion tube 33, and the diameter of the flow-blocking plug 39 is equal to the diameter of the diversion tube 30.

[0042] In this embodiment, by setting this structure, when the locking pin 38 is inserted into the lowest limiting insertion tube 33, the flow blocking plug 39 completely blocks the diversion tube 30.

[0043] Please refer specifically to Figure 5 , Figure 7 , Figure 8 , the volume inside the guiding cylinder 19 is twice the volume inside the preparatory cylinder 20, and the centers of the turntable 17 and the offset pin 28 are in a misaligned state.

[0044] In this embodiment, by setting this structure, sufficient moving space is provided for the first piston block 26.

[0045] Please refer specifically to Figure 1 , Figure 2 , the pre-connection docking unit includes baffle plates 11 installed on both sides of the pressing frame plate 9. Clamping slots 10 are opened at both ends of the housing 1, magnetic attraction sheets 12 are laid on the inner walls of the clamping slots 10, the tops of the baffle plates 11 extend into the clamping slots 10, and a pre-connection card plate 8 that fits the clamping slots 10 is provided on one side of the cover plate 2.

[0046] In this embodiment, when the pressing frame plate 9 is not in contact with the nut 7, the top of the baffle plate 11 is inside the clamping slot 10. At this time, the top of the baffle plate 11 will block one side of the clamping slot 10, so that the cover plate 2 cannot contact the housing 1. Then, as the pressing frame plate 9 contacts the nut 7, the baffle plate 11 separates from the clamping slot 10 as the pressing frame plate 9 moves. Then, the pre-connection card plate 8 is buckled into the clamping slot 10. At this time, the magnetic attraction sheet 12 will adsorb one end of the pre-connection card plate 8 away from the cover plate 2, so as to realize the pre-connection of the cover plate 2 and the housing 1, and at the same time align the mounting holes on the housing 1 and the cover plate 2. Then, the cover plate 2 can be fixed by screws, thus realizing the rapid encapsulation of the battery and further improving the encapsulation efficiency.

[0047] Please refer specifically to Figure 2 , through holes with lengths and widths both larger than the cross-sectional length and width of the top of the baffle plate 11 are opened on the inner wall of the housing 1.

[0048] In this embodiment, by setting this structure, friction between the baffle plate 11 and the housing 1 is prevented, further preventing wear of the baffle plate 11 and improving the service life of the equipment.

[0049] Please refer specifically to Figure 1 , Figure 2 , the length of the pre-connection card plate 8 fits the size of the clamping slot 10, and the pre-connection card plate 8 is of a cuboid structure.

[0050] In this embodiment, the stability of the rear cover plate 2 after the pre-connection card plate 8 is inserted into the card slot 10 is improved by setting this structure.

[0051] The following provides a solid oxide fuel cell packaging method in combination with the above-mentioned solid oxide fuel cell packaging structure, which specifically includes the following steps:

[0052] S1: First, stack multiple membrane electrodes 5 above the plate 3, and then place another plate 3 above the membrane electrodes 5 to form a stack of plate 3, membrane electrodes 5, and plate 3;

[0053] S2: Apply pressure to the plate 3 on the membrane electrodes 5 through an external pressing device to uniformly press the sample, thereby obtaining a solid green body;

[0054] S3: Then connect the two stacked plates 3 by applying pressure through the threaded post 6 and the nut 7;

[0055] S4: Place the assembled battery on the placement plate 4. After the battery assembly is placed on the placement plate 4, pull the pull plate 36 to separate the pull plate 36 from one of the limit insertion tubes 33. Then, pull the insertion frame 34 so that the flow-blocking plug 39 loses its block on the diversion tube 30. Then, rotate the rotating coupling shaft 21. During the rotation of the rotating coupling shaft 21, the turntable 17 drives the insertion rod 25 to reciprocate through the offset pin 28 and the direct connection guide rail 27, so as to make the first piston block 26 push the aqueous solution inside the guide cylinder 19 into the preparation cylinder 20, or the aqueous solution inside the preparation cylinder 20 is drawn by the first piston block 26 and passes through the diversion tube 30 into the guide cylinder 19. By rotating the rotating coupling shaft 21, the second transmission bevel gear 29 drives the first transmission bevel gear 22 to rotate, so as to make the two movable sleeve plates 23 on the bidirectional lead screw 14 move in opposite directions. In this way, the inclined connecting rod 15 can pull the L-shaped side plate 16, so that the pressure-positioning frame plate 9 moves towards the electrode plate 3, so as to make the pressure-positioning frame plate 9 fit with the nut 7. Then, pull the insertion frame 34 so that the flow-blocking plug 39 blocks the diversion tube 30. At the same time, release the pull plate 36 so that the locking pin 38 is inserted into the limit insertion tube 33, so as to make the aqueous solution inside the guide cylinder 19 lose the flow space, so as to lock and fix the rotating coupling shaft 21 and prevent the pressure-positioning frame plate 9 from moving. In this way, the nut 7 cannot rotate relative to the threaded column 6, preventing the fuel cell stack from deforming after a period of time due to uneven force on the electrode plate 3 during use, thus improving the overall packaging effect of the battery. When the pressure-positioning frame plate 9 is not in contact with the nut 7, the top of the partition plate 11 is located inside the clamping groove 10. At this time, the top of the partition plate 11 will block one side of the clamping groove 10, so that the cover plate 2 cannot contact the housing 1. Then, with the contact between the pressure-positioning frame plate 9 and the nut 7, the partition plate 11 separates from the clamping groove 10 as the pressure-positioning frame plate 9 moves. Then, buckle the pre-connection card plate 8 into the clamping groove 10. At this time, the magnetic attraction piece 12 will adsorb one end of the pre-connection card plate 8 away from the cover plate 2, so as to realize the pre-connection between the cover plate 2 and the housing 1, and at the same time align the mounting holes on the housing 1 and the cover plate 2. Then, the cover plate 2 can be fixed by screws, thus realizing the rapid packaging of the battery and further improving the packaging efficiency.

[0056] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A solid oxide fuel cell packaging structure, comprising a shell, characterized in that: A placement plate is provided at the bottom of the inner wall of the shell, a pole plate is placed on the top of the placement plate, a plurality of membrane electrodes are stacked on the top of the pole plate, and pole plates are also stacked on the top of the membrane electrode, a threaded column is provided at the edge of the pole plate, a nut is sleeved on the threaded column, a U-shaped positioning plate located on both sides of the membrane electrode is installed on the inner wall of the shell, a buckle-connected blocking member is provided on the inner side of the U-shaped positioning plate, and pre-connected docking units are provided at both ends of the shell, and the two ends of the shell are connected to a cover plate through the pre-connected docking units; The two ends of the two-way screw shaft are provided with a first transmission bevel gear, and the second transmission bevel gear is meshed with the second transmission bevel gear, and a rotating disk is provided on the rotating disk, and a biasing pin is provided on the inner side of the rotating disk, and a direct-connection guide rail is sleeved on the biasing pin, and a pressing frame plate located above the pole plate is provided on the top of the L-shaped side plate. A through-hole is provided on the pressing frame plate, and one side of the U-shaped positioning plate is rotatably connected to a rotating coupling, and a second transmission bevel gear is provided at both ends of the rotating coupling, and a first transmission bevel gear meshing with the second transmission bevel gear is provided at one end of the two-way screw shaft close to the rotating coupling. The rotating coupling is provided with a rotating disk, and a biasing pin is provided on the inner side of the rotating disk, and a direct-connection guide rail is sleeved on the biasing pin, and a pressing frame plate located above the pole plate is provided on the top of the L-shaped side plate. The cam is provided with a plurality of stoppers, each of which has a first end and a second end, and the second end of the stopper is provided with a plurality of stoppers, each of which has a plurality of stoppers, each of which has a plurality of stoppers, each of which has a plurality of stoppers. The pre-connection docking unit includes a blocking plate installed on both sides of the pressure frame plate, and the two ends of the shell are provided with a clamping groove, the inner wall of the clamping groove is paved with a magnetic attraction sheet, the top of the blocking plate extends to the inside of the clamping groove, and one side of the cover plate is provided with a pre-connection clamping plate that fits with the clamping groove.

2. A solid oxide fuel cell packaging structure according to claim 1, characterized in that: The diameter of the through hole is larger than the end face diameter of the threaded column, and the diameter of the through hole is smaller than the diameter of the circumscribed circle of the nut.

3. A solid oxide fuel cell packaging structure according to claim 1, characterized in that: The number of the bidirectional screw rods is two, and the two bidirectional screw rods are symmetrically arranged along the vertical center axis of the U-shaped positioning plate, and the movable sleeve plate is provided with threaded holes matching the bidirectional screw rods.

4. A solid oxide fuel cell packaging structure according to claim 1, characterized in that: The diameter of the locking pin is equal to the diameter of the inner wall of the limiting insert, and the diameter of the flow blocking plug is equal to the diameter of the flow guiding tube.

5. A solid oxide fuel cell packaging structure according to claim 1, characterized in that: The volume inside the guide cylinder is twice the volume inside the preparation cylinder, and the center of the rotating disk and the center of the offset pin are in a misaligned state.

6. A solid oxide fuel cell packaging structure according to claim 1, characterized in that: The inner wall of the shell is provided with a through hole, the length and width of which are both greater than the length and width of the cross section at the top of the blocking plate.

7. A solid oxide fuel cell packaging structure according to claim 6, characterized in that: The length of the pre-connected card plate matches the size of the card slot, and the pre-connected card plate is a rectangular parallelepiped structure.

8. A solid oxide fuel cell packaging method, characterized in that: A solid oxide fuel cell packaging structure according to any one of claims 1 to 7 comprises the following steps: S: First, multiple membrane electrodes are stacked on top of the electrode plate, and then another electrode plate is placed on top of the membrane electrode to form a stack of electrode plate, membrane electrode, and electrode plate; S: Apply pressure to the plates on the membrane electrode through an external pressing device to uniformly press the sample and obtain a solid body; S: The two stacked plates are then connected by applying pressure through threaded columns and nuts; S: Place the assembled battery on the placement plate, and then operate the buckle blocking piece to block and limit the nut on the threaded column to prevent the nut from moving relative to the threaded column, then operate the pre-connection docking unit to pre-connect the cover and the shell, and then fix the cover with external screws.

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