Solid oxide fuel cell packaging structure and packaging method

Abstract

The invention discloses a solid oxide fuel cell packaging structure and a packaging method, and relates to the technical field of fuel cell packaging, the solid oxide fuel cell packaging structure comprises a shell, the inner wall of the shell is provided with U-shaped positioning plates located at the two sides of a membrane electrode, the inner sides of the U-shaped positioning plates are provided with buckling movement resisting pieces, and the two ends of the shell are provided with pre-connection butt joint units. According to the invention, through the arrangement of the buckling movement resisting piece, the rotating disc drives the inserting rod to reciprocate in the rotating process of the rotating connecting shaft, so that the pressing frame plate moves towards the polar plate, the pressing frame plate is attached to the screw cap, and then the inserting frame is pulled to enable the flow resisting plug block to block the flow guide pipe; and meanwhile, a pull plate is loosened, so that a locking pin is inserted into a limiting insertion pipe, and the water solution in a guide cylinder loses a flowing space, so that a nut cannot rotate relative to a threaded column, the deformation of the galvanic pile after a period of time due to non-uniform stress of a polar plate in the use process is prevented, and the overall packaging effect of the battery is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cell packaging, and in particular 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 with high current density and power sealing. They can directly use hydrogen, hydrocarbons, methanol, etc. as fuels without using precious metals as catalysts. At the same time, they avoid the corrosion and sealing problems of acid-base electrolytes or molten salt electrolytes of 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 stack sealing performance, contact performance and mass transfer characteristics, which ultimately affect the battery output characteristics.

[0003] In the prior art, a fuel cell stack is usually formed by stacking multiple membrane electrode assemblies and bipolar plates in series, and held together by bolt assemblies or bolts and hoops. This method of bolt tightening or bolt and hoop tightening is prone to bolt loosening, and even causes deformation of the stack after a period of time due to uneven force 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 packaging method in order to solve the problem that the bolts of the bolt assembly are prone to loosening when the membrane electrode is compressed.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a solid oxide fuel cell packaging structure, comprising a shell, 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 a pole plate is 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 snap-on blocking member is provided on the inner side of the U-shaped positioning plate, pre-connected docking units are provided at both ends of the shell, and a cover plate is connected to the two ends of the shell through the pre-connected docking units.

[0006] As a further solution of the present invention, the buckling blocking member includes a two-way screw rod arranged on the inner side of the U-shaped positioning plate, and the two-way screw rod is sleeved on two movable sleeves, and the two movable sleeves are symmetrically arranged along the vertical center axis of the two-way screw rod, and the top and bottom of the two-way screw rod are rotatably connected with an oblique connecting rod via a rotating shaft, and the top of the oblique connecting rod is rotatably connected with an L-shaped side plate via a rotating shaft, and the top of the L-shaped side plate is provided with a pressure frame plate located above the pole plate, and a through hole is provided on the pressure frame plate, and one side of the U-shaped positioning plate is rotatably connected with a rotating coupling, and second transmission bevel gears are 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 rod close to the rotating coupling, a rotating disk is provided on the rotating coupling, and a biasing pin is provided on the inner side of the rotating disk, and a direct guide rail is sleeved on the biasing pin, and a The cam is provided with a plurality of guide tubes, each of which is provided with a plurality of guide tubes, each of which is provided with a plurality of guide tubes, and the guide tube is provided with a plurality of guide tubes.

[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 diameter of the circumscribed circle of the nut.

[0008] As a further solution of the present invention: 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.

[0009] As a further solution of the present invention: 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.

[0010] As a further solution of the present invention: the volume inside the guide cylinder is twice the volume inside the preparation cylinder, and the center of the turntable and the center of the offset pin are in a misaligned state.

[0011] As a further solution of the present invention: the pre-connection docking unit includes a blocking plate installed on both sides of the pressure frame plate, both 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.

[0012] As a further solution of the present invention: the inner wall of the shell is provided with a through hole whose length and width are both greater than the length and width of the top cross section of the baffle plate.

[0013] As a further solution of the present invention: 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.

[0014] The present invention also discloses a solid oxide fuel cell packaging method, which uses the above solid oxide fuel cell packaging structure and comprises the following steps: S1: First, a plurality of 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; S2: Apply pressure to the plates on the membrane electrode through an external pressing device to uniformly pressurize the sample and obtain a solid green body; S3: The two stacked plates are then connected by applying pressure through the threaded column and the nut; S4: Place the assembled battery on the placement plate, and then operate the buckle blocking member 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.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting a buckle-type blocking member, the turntable drives the plug rod to move back and forth through the offset pin and the direct guide rail during the rotation of the rotary coupling, so as to move the first piston block, and the two movable sleeves on the bidirectional screw rod are moved in opposite directions by the rotation of the rotary coupling, so that the pressure frame plate moves toward the electrode plate, so that the pressure frame plate and the nut fit together, and then the plug rack is pulled to make the flow blocking block block the guide tube, and at the same time, the pull plate is loosened to make the locking pin inserted into the limit plug tube, so that the aqueous solution inside the guide tube loses the flow space, so that the nut cannot rotate relative to the threaded column, and the battery stack is prevented from being deformed after a period of time due to uneven force on the electrode plate during use, thereby improving the overall packaging effect of the battery; 2. By setting a pre-connection docking unit, when the pressing frame plate is not in contact with the nut, the top of the blocking plate is located inside the positioning groove. At this time, the top of the blocking plate will block one side of the positioning groove, so that the cover plate cannot contact the shell. Then, as the pressing frame plate contacts the nut, the blocking plate separates from the positioning groove as the pressing frame plate moves. Then, the pre-connected card plate is buckled into the positioning groove. At this time, the magnetic suction sheet will adsorb the end of the pre-connected card plate away from the cover plate, so as to realize the pre-connection of the cover plate and the shell, and at the same time align the mounting holes on the shell and the cover plate. Then, the cover plate can be fixed by screws, thereby realizing rapid packaging of the battery and further improving the packaging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 3 It is a structural schematic diagram of the buckle-jointed shift-blocking member of the present invention; Figure 4 It is a schematic diagram of the connection between the pressure frame plate and the bidirectional screw rod of the present invention; Figure 5 It is a schematic diagram of the connection between the guide cylinder and the preparation cylinder of the present invention; Figure 6 It is a schematic diagram of the connection between the U-shaped positioning plate and the preparation cylinder of the present invention; Figure 7 It is a schematic diagram of the connection between the guide cylinder and the flow blocking chamber of the present invention; Figure 8 It is a schematic diagram of the internal structure of the flow blocking chamber of the present invention.

[0017] In the figure: 1, shell; 2, cover plate; 3, plate; 4, placement plate; 5, membrane electrode; 6, threaded column; 7, nut; 8, pre-connection card plate; 9, pressure frame plate; 10, card slot; 11, barrier plate; 12, magnetic sheet; 13, U-shaped positioning plate; 14, two-way screw rod; 15, oblique connecting rod; 16, L-shaped side plate; 17, turntable; 18, support frame; 19, guide cylinder; 20, preparation cylinder; 21, rotating shaft; 2 2. First transmission bevel gear; 23. Movable sleeve; 24. Through hole; 25. Insert rod; 26. First piston block; 27. Direct guide rail; 28. Offset pin; 29. ​​Second transmission bevel gear; 30. Guide pipe; 31. Second piston block; 32. First telescopic spring; 33. Limit insert pipe; 34. Insert rack; 35. choke chamber; 36. Pull plate; 37. Second telescopic spring; 38. Locking pin; 39. choke plug. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting 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 specified and limited, the terms "installed", "connected", "connected", and "set" 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, or it can be the internal connection of 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 circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0020] See also Figures 1 to 8 In an embodiment of the present invention, a solid oxide fuel cell packaging structure includes a shell 1, a placement plate 4 is provided at the bottom of the inner wall of the shell 1, a pole plate 3 is placed on the top of the placement plate 4, a plurality of membrane electrodes 5 are stacked on the top of the pole plate 3, and a pole plate 3 is also stacked on the top of the membrane electrode 5. A threaded column 6 is provided at the edge of the pole plate 3, and a nut 7 is sleeved on the threaded column 6. A U-shaped positioning plate 13 located on both sides of the membrane electrode 5 is installed on the inner wall of the shell 1, and a buckle-connected blocking member is provided on the inner side of the U-shaped positioning plate 13. Pre-connected docking units are provided at both ends of the shell 1, and the two ends of the shell 1 are connected to the cover plate 2 through the pre-connected docking units.

[0021] In this embodiment: first, a plurality of membrane electrodes 5 are stacked on top of the electrode plate 3, and then another electrode plate 3 is placed on top of the membrane electrode 5 to form a stack of electrode plates 3, membrane electrodes 5, and electrode plates 3, and then the sample is uniformly pressurized by applying pressure to the electrode plates 3 on the membrane electrode 5, so as to obtain a solid blank, and then the two stacked electrode plates 3 are connected after pressure is applied by the threaded column 6 and the nut 7, and then the assembled battery is placed on the placement plate 4, and then the nut 7 on the threaded column 6 is blocked and limited by operating the buckle blocking member to prevent the nut 7 from moving relative to the threaded column 6, and then the cover plate 2 and the shell 1 are pre-connected by operating the pre-connection docking unit, and then the cover plate 2 is fixed by external screws.

[0022] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8The buckle-jointed shifting member includes a bidirectional screw rod 14 arranged on the inner side of the U-shaped positioning plate 13, and two movable sleeve plates 23 are sleeved on the bidirectional screw rod 14. The two movable sleeve plates 23 are symmetrically arranged along the vertical center axis of the bidirectional screw rod 14. The top and bottom of the bidirectional screw rod 14 are both rotatably connected to an oblique connecting rod 15 through a rotating shaft. The top of the oblique connecting rod 15 is rotatably connected to an L-shaped side plate 16 through a rotating shaft. The top of the L-shaped side plate 16 is provided with a pressure frame plate 9 located above the pole plate 3. The pressure frame plate 9 is provided with a through-positioning Hole 24, one side of the U-shaped positioning plate 13 is rotatably connected with a rotating shaft 21, and the two ends of the rotating shaft 21 are provided with a second transmission bevel gear 29, and the end of the bidirectional screw rod 14 close to the rotating shaft 21 is provided with a first transmission bevel gear 22 meshing with the second transmission bevel gear 29, and a rotating disk 17 is provided on the rotating shaft 21, and a biasing pin 28 is provided on the inner side of the rotating disk 17, and a direct-connected guide rail 27 is sleeved on the biasing pin 28, and a support frame located outside the rotating shaft 21 is provided on the U-shaped positioning plate 13 18, a preparatory cylinder 20 is installed on the side of the support frame 18 away from the U-shaped positioning plate 13, a guide tube 30 is installed on one end of the preparatory cylinder 20, a flow blocking chamber 35 is arranged on the flow blocking chamber 30, a guide cylinder 19 is installed on the end of the flow blocking chamber 30 away from the preparatory cylinder 20, an insert rod 25 extending to the inside of the guide cylinder 19 is arranged on the outer side of the direct guide rail 27, a first piston block 26 is installed on the end of the insert rod 25 away from the direct guide rail 27, a plug-in frame 34 is plugged into the flow blocking chamber 35, and a positioning frame 35 is arranged at the bottom of the plug-in frame 34. A blocking plug 39 is arranged inside the blocking chamber 35, a locking pin 38 is inserted at the top of the plug-in frame 34, a second telescopic spring 37 connected to the plug-in frame 34 is arranged on the locking pin 38, a pull plate 36 is arranged at the end of the locking pin 38 away from the guide cylinder 19, two vertically arranged limiting plugs 33 are arranged at the end of the guide cylinder 19 close to the guide tube 30, a second piston block 31 is slidably connected to the inside of the preparation cylinder 20, and a first telescopic spring 32 connected to the inner wall of the preparation cylinder 20 is arranged on the second piston block 31.

[0023] In this embodiment: after the battery assembly is placed on the placement plate 4, the pull plate 36 is pulled to separate the pull plate 36 from one of the limiting plugs 33, and then the plug rack 34 is pulled to make the flow blocking plug 39 lose its obstruction to the guide tube 30, and then the rotating shaft 21 is rotated. During the rotation of the rotating shaft 21, the turntable 17 drives the plug rod 25 to reciprocate through the offset pin 28 and the direct guide rail 27, so that the first piston block 26 pushes the aqueous solution inside the guide cylinder 19 into the inside of the preparatory cylinder 20, or the aqueous solution inside the preparatory cylinder 20 passes through the guide tube 30 and enters the inside of the guide cylinder 19 under the extraction of the first piston block 26, and the second transmission bevel gear 29 drives the first transmission bevel gear 22 to rotate through the rotation of the rotating shaft 21, so that the bidirectional wire The two movable sleeves 23 on the rod 14 move in opposite directions, so that the oblique connecting rod 15 can pull the L-shaped side plate 16, so that the pressure frame plate 9 moves toward the electrode plate 3, so that the pressure frame plate 9 and the nut 7 are fitted together, and then the bracket 34 is pulled to make the flow blocking block 39 block the guide tube 30, and at the same time, the pull plate 36 is loosened to allow the locking pin 38 to be inserted into the limiting plug 33, so that the aqueous solution inside the guide cylinder 19 loses the flow space, so as to lock and fix the rotating coupling 21 to prevent the pressure frame plate 9 from moving, so that the nut 7 cannot rotate relative to the threaded column 6, and the battery stack is prevented from being deformed after a period of time due to uneven force on the electrode plate 3 during use, thereby improving the overall packaging effect of the battery.

[0024] Please refer 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 diameter of the circumscribed circle of the nut 7 .

[0025] In this embodiment, this structure is used to prevent the pressing frame plate 9 from rubbing against the threaded column 6 when moving toward the pole plate 3 , and also prevents the nut 7 from passing through the penetration hole 24 and affecting the blocking effect of the pressing frame plate 9 on the nut 7 .

[0026] Please refer to Figure 3 , Figure 4 There are two bidirectional screw rods 14 , and the two bidirectional screw rods 14 are symmetrically arranged along the vertical center axis of the U-shaped positioning plate 13 , and threaded holes matching the bidirectional screw rods 14 are arranged on the movable sleeve plate 23 .

[0027] In this embodiment: by setting this structure, the movable sleeve plate 23 on the bidirectional screw rod 14 is limited.

[0028] Please refer to Figure 7 The diameter of the locking pin 38 is equal to the inner wall diameter of the limiting insert 33 , and the diameter of the blocking plug 39 is equal to the diameter of the guide tube 30 .

[0029] In this embodiment, by providing this structure, when the locking pin 38 is inserted into the inner portion of the limiting insert 33 at the lowest position, the blocking plug 39 completely blocks the guide tube 30 .

[0030] Please refer to Figure 5 , Figure 7 , Figure 8 The volume inside the guide cylinder 19 is twice the volume inside the preparatory cylinder 20, and the center of the turntable 17 and the center of the offset pin 28 are in a misaligned state.

[0031] In this embodiment, this structure is provided to provide sufficient activity space for the first piston block 26 .

[0032] Please refer to Figure 1 , Figure 2 The pre-connection docking unit includes a blocking plate 11 installed on both sides of the pressure frame plate 9, a clamping groove 10 is opened at both ends of the shell 1, and the inner wall of the clamping groove 10 is paved with a magnetic suction sheet 12. The top of the blocking plate 11 extends to the inside of the clamping groove 10, and a pre-connected clamping plate 8 that fits with the clamping groove 10 is provided on one side of the cover plate 2.

[0033] In this embodiment: when the pressing frame plate 9 is not in contact with the nut 7, the top of the blocking plate 11 is located inside the locking groove 10. At this time, the top of the blocking plate 11 will block one side of the locking groove 10, so that the cover plate 2 cannot contact the shell 1. Then, as the pressing frame plate 9 contacts the nut 7, the blocking plate 11 separates from the locking groove 10 as the pressing frame plate 9 moves. Then, the pre-connected card plate 8 is buckled into the locking groove 10. At this time, the magnetic suction sheet 12 will adsorb the end of the pre-connected card plate 8 away from the cover plate 2, so as to achieve pre-connection between the cover plate 2 and the shell 1, and at the same time align the mounting holes on the shell 1 and the cover plate 2. Then, the cover plate 2 can be fixed by screws, thereby realizing rapid packaging of the battery, further improving the packaging efficiency.

[0034] Please refer to Figure 2 The inner wall of the shell 1 is provided with a through hole whose length and width are greater than the length and width of the top cross section of the blocking plate 11.

[0035] In this embodiment, this structure is provided to prevent the baffle plate 11 from rubbing against the housing 1, thereby further preventing the baffle plate 11 from being worn and improving the service life of the device.

[0036] Please refer to Figure 1 , Figure 2 The length of the pre-connected card plate 8 matches the size of the card slot 10, and the pre-connected card plate 8 is a rectangular parallelepiped structure.

[0037] In this embodiment, this structure is provided to improve the stability of the cover plate 2 after the pre-connection card plate 8 is inserted into the card slot 10 .

[0038] In combination with the above-mentioned solid oxide fuel cell packaging structure, a solid oxide fuel cell packaging method is provided below, which specifically includes the following steps: S1: Firstly, a plurality of membrane electrodes 5 are stacked on the electrode plate 3, and then another electrode plate 3 is placed on the membrane electrode 5 to form a stack of the electrode plate 3, the membrane electrode 5, and the electrode plate 3; S2: applying pressure to the electrode plate 3 on the membrane electrode 5 by an external pressing device, so as to uniformly pressurize the sample and obtain a solid green body; S3: The two stacked plates 3 are then connected by applying pressure through the threaded column 6 and the nut 7; 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 limiting plugs 33, then pull the plug rack 34 to make the blocking plug 39 lose its blocking of the guide tube 30, then rotate the rotating shaft 21. During the rotation of the rotating shaft 21, the turntable 17 drives the plug rod 25 to reciprocate through the offset pin 28 and the direct guide rail 27, so that the first piston block 26 pushes the aqueous solution inside the guide cylinder 19 into the inside of the preparation cylinder 20, or the aqueous solution inside the preparation cylinder 20 Under the extraction of the first piston block 26, it passes through the guide tube 30 and enters the guide cylinder 19. The second transmission bevel gear 29 drives the first transmission bevel gear 22 to rotate by rotating the rotating shaft 21, so that the two movable sleeve plates 23 on the two-way screw rod 14 move in opposite directions, so that the oblique connecting rod 15 can pull the L-shaped side plate 16, so that the pressure frame plate 9 moves toward the pole plate 3, so that the pressure frame plate 9 and the nut 7 fit together, and then pull the bracket 34 to make the blocking plug 39 block the guide tube 30, and release the pull plate at the same time. 36 makes the locking pin 38 inserted into the limiting insert 33, so that the aqueous solution inside the guide cylinder 19 loses the flow space, so as to lock and fix the rotating shaft 21, and prevent the pressing frame plate 9 from moving. In this way, the nut 7 cannot rotate relative to the threaded column 6, and the battery stack is prevented from being deformed after a period of time due to uneven force on the plate 3 during use, thereby improving the overall packaging effect of the battery. When the pressing frame plate 9 is not in contact with the nut 7, the top of the blocking plate 11 is located inside the clamping groove 10, and at this time, the top of the blocking plate 11 will contact one side of the clamping groove 10. The side is blocked to prevent the cover plate 2 from contacting the shell 1. Then, as the pressing frame plate 9 contacts the nut 7, the blocking plate 11 is separated from the positioning groove 10 as the pressing frame plate 9 moves. Then, the pre-connected card plate 8 is buckled into the positioning groove 10. At this time, the magnetic suction sheet 12 will adsorb the end of the pre-connected card plate 8 away from the cover plate 2, so as to achieve the pre-connection of the cover plate 2 and the shell 1, and at the same time align the mounting holes on the shell 1 and the cover plate 2. Then, the cover plate 2 can be fixed by screws, thereby realizing the rapid packaging of the battery, further improving the packaging efficiency.

[0039] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A solid oxide fuel cell packaging structure, comprising a housing (1), characterized in that: A placement plate (4) is provided at the bottom of the inner wall of the shell (1), a pole plate (3) is placed on the top of the placement plate (4), a plurality of membrane electrodes (5) are stacked on the top of the pole plate (3), and a pole plate (3) is also stacked on the top of the membrane electrode (5), a threaded column (6) is provided at the edge of the pole plate (3), a nut (7) is sleeved on the threaded column (6), a U-shaped positioning plate (13) located on both sides of the membrane electrode (5) is installed on the inner wall of the shell (1), a buckle-connected blocking member is provided on the inner side of the U-shaped positioning plate (13), and pre-connected docking units are provided at both ends of the shell (1), and the two ends of the shell (1) are connected to the cover plate (2) through the pre-connected docking units.

2. A solid oxide fuel cell packaging structure according to claim 1, characterized in that: The buckled shifting block comprises a bidirectional screw (14) arranged on the inner side of the U-shaped positioning plate (13); two movable sleeve plates (23) are sleeved on the bidirectional screw (14); the two movable sleeve plates (23) are symmetrically arranged along the vertical center axis of the bidirectional screw (14); the top and bottom of the bidirectional screw (14) are rotatably connected to an oblique connecting rod (15) via a rotating shaft; the top of the oblique connecting rod (15) is rotatably connected to an L-shaped side plate (16) via a rotating shaft; the top of the L-shaped side plate (16) is provided with a pressure frame plate (9) located above the pole plate (3); the pressure frame plate (9) is provided with a through hole (24); the U One side of the U-shaped positioning plate (13) is rotatably connected to a rotating shaft (21), and both ends of the rotating shaft (21) are provided with second transmission bevel gears (29). One end of the bidirectional screw rod (14) close to the rotating shaft (21) is provided with a first transmission bevel gear (22) meshing with the second transmission bevel gear (29). A rotating disk (17) is provided on the rotating shaft (21), and a deflection pin (28) is provided on the inner side of the rotating disk (17). A direct-connection guide rail (27) is sleeved on the deflection pin (28). A support frame (18) located outside the rotating shaft (21) is provided on the U-shaped positioning plate (13), and the support frame (18) is provided on the outer side of the rotating shaft (21). A preparation cylinder (20) is installed on one side of the frame (18) away from the U-shaped positioning plate (13), a flow guide tube (30) is installed on one end of the preparation cylinder (20), a flow blocking chamber (35) is arranged on the flow guide tube (30), a guide cylinder (19) is installed on the end of the flow guide tube (30) away from the preparation cylinder (20), an insertion rod (25) extending into the inside of the guide cylinder (19) is arranged on the outer side of the direct-connection guide rail (27), a first piston block (26) is installed on the end of the insertion rod (25) away from the direct-connection guide rail (27), a plug-in frame (34) is plugged into the flow blocking chamber (35), and a plug-in frame (34) is arranged at the bottom of the plug-in frame (34). A choke block (39) is provided inside the choke chamber (35); a locking pin (38) is plugged into the top of the plug frame (34); a second telescopic spring (37) connected to the plug frame (34) is provided on the locking pin (38); a pull plate (36) is provided at one end of the locking pin (38) away from the guide cylinder (19); two limit plugs (33) are arranged vertically at one end of the guide cylinder (19) close to the flow guide tube (30); a second piston block (31) is slidably connected inside the preparation cylinder (20); and a first telescopic spring (32) connected to the inner wall of the preparation cylinder (20) is provided on the second piston block (31).

3. A solid oxide fuel cell packaging structure according to claim 2, characterized in that: The diameter of the through hole (24) is greater than the end face diameter of the threaded column (6), and the diameter of the through hole (24) is smaller than the diameter of the circumscribed circle of the nut (7).

4. A solid oxide fuel cell packaging structure according to claim 2, characterized in that: The number of the bidirectional screw rods (14) is two, and the two bidirectional screw rods (14) are symmetrically arranged along the vertical center axis of the U-shaped positioning plate (13), and the movable sleeve plate (23) is provided with a threaded hole matching the bidirectional screw rods (14).

5. A solid oxide fuel cell packaging structure according to claim 2, characterized in that: The diameter of the locking pin (38) is equal to the diameter of the inner wall of the limiting insert (33), and the diameter of the flow blocking plug (39) is equal to the diameter of the flow guiding tube (30).

6. A solid oxide fuel cell packaging structure according to claim 2, characterized in that: The volume inside the guide cylinder (19) is twice the volume inside the preparation cylinder (20), and the center of the rotating disk (17) and the center of the offset pin (28) are in a misaligned state.

7. A solid oxide fuel cell packaging structure according to claim 2, characterized in that: The pre-connection docking unit comprises a blocking plate (11) installed on both sides of a pressure frame plate (9), a locking groove (10) is provided at both ends of the shell (1), a magnetic attraction sheet (12) is laid on the inner wall of the locking groove (10), the top of the blocking plate (11) extends to the inside of the locking groove (10), and a pre-connection clamping plate (8) that fits with the locking groove (10) is provided on one side of the cover plate (2).

8. A solid oxide fuel cell packaging structure according to claim 7, characterized in that: The inner wall of the shell (1) is provided with a through hole, the length and width of which are greater than the length and width of the top cross section of the baffle plate (11).

9. A solid oxide fuel cell packaging structure according to claim 7, characterized in that: The length of the pre-connected card plate (8) matches the size of the card slot (10), and the pre-connected card plate (8) is a rectangular parallelepiped structure.

10. 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 9 comprises the following steps: S1: first stacking a plurality of membrane electrodes (5) on top of an electrode plate (3), and then placing another electrode plate (3) on top of the membrane electrode (5), so as to form a stack of an electrode plate (3), a membrane electrode (5), and an electrode plate (3); S2: applying pressure to the electrode plate (3) on the membrane electrode (5) by means of an external pressing device, thereby uniformly pressurizing the sample, thereby obtaining a solid green body; S3: The two stacked plates (3) are then connected by applying pressure through the threaded column (6) and the nut (7); S4: The assembled battery is placed on the placement plate (4), and then the nut (7) on the threaded column (6) is blocked and limited by operating the buckle blocking member to prevent the nut (7) from moving relative to the threaded column (6), and then the cover plate (2) and the shell (1) are pre-connected by operating the pre-connection docking unit, and then the cover plate (2) is fixed by external screws.

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