Packaging equipment, packaging method and composite packaging fuel cell stack

Abstract

The invention discloses packaging equipment, a packaging method and a composite packaging fuel cell stack, and relates to the technical field of fuel cell packaging. Comprising a negative electrode side fixing plate and a clamping part, the negative electrode side fixing plate and the clamping part are movably connected through a lifting piece, the clamping part comprises a clamping plate and a positive electrode side fixing plate, a through hole formed in the surface of the clamping plate is movably connected with a guide rod, and a transverse plate is fixed to the top of the guide rod through a screw; a first spring is clamped between the outer wall of the bottom of the transverse plate and the outer wall of the top of the clamping plate, the bottom of the guide rod is fixedly connected with the top of the positive electrode side fixing plate, a threaded column is welded to the outer wall of the top of the clamping plate, and an insertion hole matched with the threaded column in outer diameter is formed in the surface of the transverse plate. By arranging the one-way clamping teeth and the toothed plates, when the heights of the reactor core assemblies are different, the clamping parts can be rapidly moved to the positions matched with the heights of the reactor core assemblies, and the packaging efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cell packaging, and in particular to a packaging device, a packaging method and a composite packaged fuel cell stack. Background Art

[0002] A hydrogen fuel cell stack is a device that generates electricity through the reaction of hydrogen and oxygen. It has the advantages of high power generation efficiency, low environmental pollution, and high specific energy. It is usually composed of multiple monolithic battery components and is one of the core components of the fuel cell engine system.

[0003] In complex application scenarios, the single cells of the fuel cell stack are easily affected by vibration, causing deformation and relative displacement of each single cell, thus affecting the safety of the stack. The usual solution is to set end plates at both ends of the fuel cell stack to match the packaging shell, but this design cannot fully guarantee the relative flatness between the packaging shell and the fuel cell stack, resulting in insufficient contact between the fuel cell stack and the packaging shell, and the presence of local gaps, which leads to reduced vibration and collision resistance of the packaging structure and reduced product reliability.

[0004] Therefore, the present application proposes a packaging device, a packaging method and a composite packaging fuel cell stack, which effectively ensure the packaging efficiency of the fuel cell stack and the sealing and reliability after packaging. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a packaging device, a packaging method and a composite packaging fuel cell stack.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A packaging device includes a negative electrode side fixing plate and a clamping part, which is used to package a composite packaged fuel cell stack, and the negative electrode side fixing plate and the clamping part are movably connected by a lifting member, and the clamping part includes a clamping plate and a positive electrode side fixing plate, a through hole opened on the surface of the clamping plate is movably connected with a guide rod, and a cross plate is fixed on the top of the guide rod, and the same spring is clamped between the bottom outer wall of the cross plate and the top outer wall of the clamping plate, and the bottom of the guide rod and the top of the positive electrode side fixing plate are fixedly connected, a threaded column is welded on the top outer wall of the clamping plate, and a socket matching the outer diameter of the threaded column is opened on the surface of the cross plate, and a nut is threadedly connected to the circumferential outer wall of the threaded column.

[0008] Preferably, the lifting member includes a sliding rod and a tooth plate, and the sliding rod and the tooth plate are both fixed to the top outer wall of the negative electrode side fixing plate, and the clamping plate and the sliding rod are movably connected.

[0009] Preferably, the lifting member also includes a stand and a liner rod, the stand is welded to the outer wall of one side of the clamping plate, and the liner rod and the stand are movably connected, a spring three is clamped between the inner wall of one side of the liner rod and the stand, and one end of the liner rod is fixed with a one-way clamping tooth through a pin for use with a tooth plate, a threaded limit piece is threadedly connected to the top of the stand, and a threaded groove matching the threaded limit piece is opened on the liner rod.

[0010] Preferably, brackets are fixed to the outer walls on both sides of the clamping plate, and a guide plate is fixed between the two brackets, the outer wall of the guide plate is movably connected with a accommodating ring, and the through hole opened on the surface of the accommodating ring is movably connected with a conical head, a bidirectional threaded rod is movably connected between the two brackets, and the accommodating ring and the bidirectional threaded rod are threadedly connected.

[0011] Preferably, a connecting rod is welded to the top of the guide rod, and one end of the connecting rod is movably connected to a conical head 1 for use with the conical head.

[0012] Preferably, a accommodating seat is fixed on the outer wall of one side of the horizontal plate, and a resistor is fixed between the inner walls on both sides of the accommodating seat, a conductive sheet is movably connected to the outer wall of the resistor, and an adjusting seat is fixed on the outer wall of the top of the clamping plate, and a connecting rod is movably connected between the inner wall of the adjusting seat and the inner wall of the conductive sheet.

[0013] Preferably, a shielding shell is fixed to the inner wall of the top of the accommodating seat, and a permanent magnet is embedded in the bottom of the shielding shell, a through hole opened in the top of the shielding shell is movably connected to a driving rod, and an electromagnet is fixed to the bottom of the driving rod, a spring 2 is clamped between the electromagnet and the shielding shell, an application plate is fixed to the top of the driving rod, an L-shaped plate is fixed to the outer wall of the top of the accommodating seat, and a pressure sensor is fixed to the inner wall of the top of the L-shaped plate, and an alarm is fixed to the outer wall of the top of the L-shaped plate, and the alarm, pressure sensor, electromagnet, resistor and conductive sheet are electrically connected.

[0014] A composite packaged fuel cell stack is packaged according to a packaging device, comprising a negative electrode side end plate, a positive electrode side end plate, a negative electrode side current collecting plate, a positive electrode side current collecting plate and a plurality of stacked core bodies, wherein the negative electrode side current collecting plate is located on the inner side of the negative electrode side end plate, and the positive electrode side current collecting plate is located on the inner side of the positive electrode side end plate; a composite component is fixedly connected between the negative electrode side end plate and the positive electrode side end plate, and the composite component is located around the core body for positioning in the long side and short side directions.

[0015] Preferably, the composite assembly includes a metal drawstring and an insulating member.

[0016] A packaging method, according to a packaging device, packages a composite packaged fuel cell stack, comprising the following steps:

[0017] S1: stacking the positive electrode side end plate, the positive electrode side current collecting plate, the core body, the negative electrode side current collecting plate, and the negative electrode side end plate on the negative electrode side fixing plate to form a core assembly;

[0018] S2: Slide the clamping plate along the slide rod. When the one-way latching teeth move synchronously to the set height, the one-way latching teeth and the tooth plate are engaged, and the threaded limiter is used to lock the stand and the liner rod.

[0019] S3: Rotate the bidirectional threaded rod so that the two conical heads squeeze conical head 1 during the lateral movement, so that the positive electrode side fixing plate moves downward and is pressed against the top of the core assembly;

[0020] S4: Threading the nut and the threaded column to fix the cross plate and the threaded column to assemble the core assembly;

[0021] S5: Fix the composite assembly on the positive electrode side end plate and the negative electrode side end plate to form positioning in the long side and short side directions.

[0022] The beneficial effects of the present invention are:

[0023] The present invention provides a packaging device and a packaging method, which can package a composite packaged fuel cell stack. By providing a one-way clamping tooth and a tooth plate, when the height of the core assembly is different, the clamping part can be quickly moved to a position that is adapted to the height of the core assembly, thereby improving the packaging efficiency; by providing a conical head, the conical head can be squeezed, so that when the clamping part moves to an approximate height position, the height of the positive electrode side fixing plate is finely adjusted, so that the positive electrode side fixing plate and the top of the core assembly are pressed together, and the stability of the cross plate is ensured at the same time; by providing two groups of nuts, the threaded column and the cross plate can be fixed to complete the fixation of the core assembly; when the nut is loose, the resistance value of the resistor between the two conductive sheets will change, so that when the magnetic force of the electromagnet changes, the pressure on the pressure sensor changes as a trigger mechanism, so that the alarm alarms after the nut is loose. The present invention also provides a composite packaged fuel cell stack packaged by a packaging device and a packaging method. The composite components are arranged for positioning, and the fuel cell stack core can be effectively supported. When subjected to external or internal pressure, the interlayer dislocation load of the fuel cell stack is absorbed, and shock absorption is provided to avoid warping of the single cells caused by impact, and the deviation between the single cells is limited to avoid the occurrence of middle depression, thereby improving sealing and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The overall structure of a packaging device proposed by the present invention is shown in FIG. Figure 1 ;

[0025] Figure 2The overall structure of a packaging device proposed by the present invention is shown in FIG. Figure 2 ;

[0026] Figure 3 It is a schematic diagram of the overall structure of a clamping assembly of a packaging device proposed by the present invention;

[0027] Figure 4 It is a schematic diagram of the partial structure of a clamping assembly of a packaging device proposed by the present invention;

[0028] Figure 5 It is a schematic diagram of the exploded structure of a clamping assembly of a packaging device proposed by the present invention;

[0029] Figure 6 It is a schematic diagram of the installation structure of a monitoring mechanism of a packaging device proposed by the present invention;

[0030] Figure 7 It is a schematic diagram of the main structure of a monitoring mechanism of a packaging device proposed by the present invention;

[0031] Figure 8 The present invention is a schematic diagram of the structure of a limiting mechanism of a packaging device.

[0032] In the figure: negative electrode side fixing plate 1; core body 2; positive electrode side fixing plate 3; clamping plate 4; bidirectional threaded rod 5; sliding rod 6; composite assembly 7; negative electrode side current collecting plate 8; guide plate 9; conical head 10; accommodating ring 11; bracket 12; conical head one 13; connecting rod 14; threaded column 15; accommodating seat 16; positive electrode side current collecting plate 17; guide rod 18; nut 19; cross plate 20; spring one 21; alarm 22; shielding shell 23; application plate 24; pressure sensor 25; driving rod 26; spring two 27; resistor 28; connecting rod 29; permanent magnet 30; adjustment seat 31; electromagnet 32; conductive sheet 33; L-shaped plate 34; stand 35; one-way clamping tooth 36; spring three 37; lining rod 38; tooth plate 39; threaded limiter 40; negative electrode side end plate 41; positive electrode side end plate 42. DETAILED DESCRIPTION

[0033] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] Embodiment 1:

[0036] A packaging device such as Figures 1 to 8As shown, it includes a negative electrode side fixing plate 1 and a clamping part, and the negative electrode side fixing plate 1 and the clamping part are slidably connected by a lifting member, and the clamping part includes a clamping plate 4 and a positive electrode side fixing plate 3, a through hole opened on the surface of the clamping plate 4 is slidably connected with a guide rod 18, and a cross plate 20 is fixed to the top of the guide rod 18 by screws, and the same spring 21 is clamped between the bottom outer wall of the cross plate 20 and the top outer wall of the clamping plate 4, and the bottom of the guide rod 18 and the top of the positive electrode side fixing plate 3 are fixedly connected by screws, a threaded column 15 is welded to the top outer wall of the clamping plate 4, and a jack matching the outer diameter of the threaded column 15 is opened on the surface of the cross plate 20, and a nut 19 is threadedly connected to the circumferential outer wall of the threaded column 15;

[0037] When it is necessary to package the fuel cell stack, after placing the positive electrode side end plate 42, the positive electrode side current collecting plate 17, the core body 2, the negative electrode side current collecting plate 8, and the negative electrode side end plate 41 on the negative electrode side fixing plate 1 to form a core assembly, the clamping part is slid along the lifting member, and the height of the clamping part is adjusted according to the height of the core assembly. When the clamping part moves to the top of the core assembly, the core assembly is clamped by the positive electrode side fixing plate 3 and the negative electrode side fixing plate 1. At this time, the position of the clamping part relative to the lifting member is limited to ensure that the clamping part and The stability between the lifting parts. When it is necessary to fix the positive side fixing plate 3 and the top of the core assembly, slide the guide rod 18 along the clamping plate 4, and apply pressure to the positive side fixing plate 3 and the top of the core assembly to ensure the sealing effect between the core assemblies. When the positive side fixing plate 3 presses the top of the core assembly, the nut 19 and the threaded column 15 are threadedly connected. In this application, the number of nuts 19 is two groups. Two groups of nuts 19 can be used to fix the cross plate 20 and the threaded column 15 from above and below.

[0038] Further, the lifting member includes a slide rod 6 and a tooth plate 39, the slide rod 6 and the tooth plate 39 are fixed to the outer wall of the top of the negative side fixing plate 1 by bolts, and the clamping plate 4 and the slide rod 6 are slidably connected, the lifting member also includes a stand 35 and a lining rod 38, the stand 35 is welded to the outer wall of one side of the clamping plate 4, and the lining rod 38 and the stand 35 are slidably connected, a spring 37 is clamped between the inner wall of one side of the lining rod 38 and the stand 35, and one end of the lining rod 38 is fixed with a one-way clamping tooth 36 used in conjunction with the tooth plate 39 by a pin, the top of the stand 35 is threadedly connected with a threaded stopper 40, and the lining rod 38 is provided with a threaded groove adapted to the threaded stopper 40;

[0039] When the height of the clamping part needs to be adjusted, the clamping plate 4 is slid along the sliding rod 6, and the one-way tooth 36 can only slide one-way along the tooth plate 39. When the one-way tooth 36 moves to the set height along the tooth plate 39, the tooth plate 39 limits the one-way tooth 36, thereby preventing the one-way tooth 36 from sliding down along the tooth plate 39. When the relative position between the one-way tooth 36 and the tooth plate 39 needs to be limited, the threaded limiter 40 is rotated along the top of the stand 35, so that the threaded limiter 40 moves to the thread groove on the lining rod 38, thereby fixing the one-way tooth 36 and the tooth plate 39.

[0040] Furthermore, the outer walls of both sides of the clamping plate 4 are fixed with brackets 12 by bolts, and a guide plate 9 is fixed between the two brackets 12, the outer wall of the guide plate 9 is slidably connected with a receiving ring 11, and the through hole opened on the surface of the receiving ring 11 is rotatably connected with a conical head 10, a bidirectional threaded rod 5 is rotatably connected between the two brackets 12, and the receiving ring 11 and the bidirectional threaded rod 5 are threadedly connected, a connecting rod 14 is welded to the top of the guide rod 18, and one end of the connecting rod 14 is rotatably connected with a conical head 13 used in conjunction with the conical head 10;

[0041] When it is necessary to use the nut 19 to fix the threaded column 15 and the cross plate 20, since the spring 121 has a rebound force at this time, in order to ensure that the cross plate 20 remains stationary when the nut 19 is tightened along the threaded column 15, it is convenient for the nut 19 to tighten the threaded column 15 and the cross plate 20, by rotating the two-way threaded rod 5 so that the two groups of accommodating rings 11 move in relative directions under the guidance of the guide plate 9, the conical head 10 is used to squeeze the conical head 13. Since the conical head 10 and the conical head 13 are both conical structures, the conical head 10 presses the conical head 13 downward in the vertical direction during the lateral movement, so that the cross plate 20 can remain stable during the rotation of the nut 19 along the threaded column 15.

[0042] Furthermore, a receiving seat 16 is fixed to the outer wall of one side of the horizontal plate 20 by screws, and a resistor 28 is fixed between the inner walls on both sides of the receiving seat 16 by screws, and a conductive sheet 33 is slidably connected to the outer wall of the resistor 28, and an adjustment seat 31 is fixed to the outer wall of the top of the clamping plate 4 by screws, and a connecting rod 29 is rotatably connected between the inner wall of the adjustment seat 31 and the inner wall of the conductive sheet 33, a shielding shell 23 is fixed to the inner wall of the top of the receiving seat 16 by screws, and a permanent magnet 30 is embedded in the bottom of the shielding shell 23, and a through hole opened at the top of the shielding shell 23 is slidably connected to a driving Rod 26, and an electromagnet 32 ​​is fixed to the bottom of the driving rod 26 by screws, a spring 27 is clamped between the electromagnet 32 ​​and the shielding shell 23, an application plate 24 is fixed to the top of the driving rod 26 by screws, an L-shaped plate 34 is fixed to the top outer wall of the accommodating seat 16 by screws, and a pressure sensor 25 is fixed to the top inner wall of the L-shaped plate 34 by screws, and an alarm 22 is fixed to the top outer wall of the L-shaped plate 34 by screws, and the alarm 22, the pressure sensor 25, the electromagnet 32, the resistor 28 and the conductive sheet 33 are electrically connected;

[0043] When the nut 19 is loose relative to the threaded column 15, in order to remind the user to tighten the nut, when the nut 19 is loose relative to the threaded column 15, the cross plate 20 will move a certain distance along the threaded column 15 under the action of the rebound force of the spring 1 21. During the up and down movement of the cross plate 20, the conductive sheet 33 will slide along the resistor 28 under the linkage action of the connecting rod 29. At this time, the resistance value of the resistor 28 between the two conductive sheets 33 will change, and the resistor 28 and the electromagnet are electrically connected. Therefore, the current passing through the electromagnet 32 ​​will change. In the initial stage, the electromagnet 32 The permanent magnet 30 and the applying plate 24 repel each other magnetically, and the pressure sensor 25 applied by the applying plate 24 will be changed. Therefore, when the pressure sensed by the pressure sensor 25 is abnormal, the pressure sensor 25 will feed back the signal to the terminal, and the terminal will control the alarm 22 to sound an alarm, thereby reminding the user to tighten the nut 19 between the threaded column 15 and the cross plate 20.

[0044] Embodiment 2:

[0045] A composite packaged fuel cell stack is packaged according to a packaging device, comprising a negative electrode side end plate 41, a positive electrode side end plate 42, a negative electrode side current collecting plate 8, a positive electrode side current collecting plate 17 and a plurality of stacked core bodies 2, wherein the negative electrode side current collecting plate 8 is located inside the negative electrode side end plate 41, and the positive electrode side current collecting plate 17 is located inside the positive electrode side end plate 42. A composite component 7 is fixedly connected between the negative electrode side end plate 41 and the positive electrode side end plate 42, and the composite component 7 is located around the core body 2 for positioning in the long side and short side directions. The composite component 7 comprises a metal pull belt and an insulating member. The core body 2 can be limited from the side direction by providing the composite component 7 to ensure that the plurality of core bodies 2 are aligned with each other. The composite component 7 can effectively support the fuel cell core, absorb the interlayer displacement load of the fuel cell stack when subjected to external pressure or internal pressure, buffer and absorb shock, avoid the warping of the single cell caused by impact between the single cells, and limit the deviation between the single cells to avoid the phenomenon of middle depression, thereby improving the sealing performance and reliability.

[0046] Embodiment 3:

[0047] A packaging method, using packaging equipment to package a composite packaged fuel cell stack, comprises the following steps:

[0048] S1: stacking the positive electrode side end plate 42, the positive electrode side current collecting plate 17, the core body 2, the negative electrode side current collecting plate 8, and the negative electrode side end plate 41 on the negative electrode side fixing plate 1 to form a core assembly;

[0049] S2: Slide the clamping plate 4 along the slide rod 6. When the one-way latching teeth 36 move synchronously to the set height, the one-way latching teeth 36 and the tooth plate 39 are engaged, and the threaded stopper 40 is used to lock the stand 35 and the lining rod 38.

[0050] S3: Rotate the bidirectional threaded rod 5 so that the two conical heads 10 squeeze the conical head 13 during the lateral movement, so that the positive electrode side fixing plate 3 moves downward and is pressed against the top of the core assembly;

[0051] S4: Threading the nut 19 and the threaded column 15 to fix the cross plate 20 and the threaded column 15 to assemble the core assembly;

[0052] S5: The composite assembly 7 is fixed to the positive electrode side end plate 42 and the negative electrode side end plate 41 to be positioned in the long side and short side directions.

[0053] This method fastens the external positioning structure composite assembly 7 and the core assembly into one, reduces the number of components in the fuel cell stack, and improves assembly production efficiency; at the same time, it ensures a close fit to the core assembly, making it less likely to deform under vibration and impact conditions, thereby improving the integrity of the fuel cell stack.

[0054] The above is a preferred specific implementation manner of the present invention, and the protection scope of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by any technician familiar with the field within the technical scope disclosed by the present invention in combination with the prior art or public common sense within the spirit and principle of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A packaging device, comprising a negative electrode side fixing plate (1) and a clamping portion, for packaging a composite packaged fuel cell stack, characterized in that: The negative electrode side fixing plate (1) and the clamping part are movably connected via a lifting member, and the clamping part comprises a clamping plate (4) and a positive electrode side fixing plate (3), a through hole provided on the surface of the clamping plate (4) is movably connected with a guide rod (18), and a transverse plate (20) is fixed to the top of the guide rod (18), and a same spring (21) is clamped between the bottom outer wall of the transverse plate (20) and the top outer wall of the clamping plate (4), and the bottom of the guide rod (18) and the top of the positive electrode side fixing plate (3) are fixedly connected, a threaded column (15) is welded to the top outer wall of the clamping plate (4), and a socket matching the outer diameter of the threaded column (15) is provided on the surface of the transverse plate (20), and a nut (19) is threadedly connected to the circumferential outer wall of the threaded column (15).

2. A packaging device according to claim 1, characterized in that: The lifting member comprises a slide bar (6) and a tooth plate (39), wherein the slide bar (6) and the tooth plate (39) are both fixed to the top outer wall of the negative electrode side fixing plate (1), and the clamping plate (4) and the slide bar (6) are movably connected.

3. A packaging device according to claim 2, characterized in that: The lifting member also includes a stand (35) and a liner rod (38), the stand (35) is welded to the outer wall of one side of the clamping plate (4), and the liner rod (38) and the stand (35) are movably connected, a spring three (37) is clamped between the inner wall of one side of the liner rod (38) and the stand (35), and one end of the liner rod (38) is fixed by a pin with a one-way clamping tooth (36) used in conjunction with a tooth plate (39), the top of the stand (35) is threadedly connected with a threaded limiter (40), and a threaded groove adapted to the threaded limiter (40) is provided on the liner rod (38).

4. A packaging device according to claim 3, characterized in that: The outer walls of both sides of the clamping plate (4) are fixed with brackets (12), and a guide plate (9) is fixed between the two brackets (12); the outer wall of the guide plate (9) is movably connected with a receiving ring (11), and a through hole opened on the surface of the receiving ring (11) is movably connected with a conical head (10); a bidirectional threaded rod (5) is movably connected between the two brackets (12), and the receiving ring (11) and the bidirectional threaded rod (5) are threadedly connected.

5. A packaging device according to claim 4, characterized in that: A connecting rod (14) is welded to the top of the guide rod (18), and one end of the connecting rod (14) is movably connected to a conical head (13) used in conjunction with the conical head (10).

6. A packaging device according to claim 5, characterized in that: A receiving seat (16) is fixed on the outer wall of one side of the transverse plate (20), and a resistor (28) is fixed between the inner walls on both sides of the receiving seat (16), and a conductive sheet (33) is movably connected to the outer wall of the resistor (28), and an adjustment seat (31) is fixed on the outer wall of the top of the clamping plate (4), and a connecting rod (29) is movably connected between the inner wall of the adjustment seat (31) and the inner wall of the conductive sheet (33).

7. A packaging device according to claim 6, characterized in that: A shielding shell (23) is fixed on the inner wall of the top of the accommodating seat (16), and a permanent magnet (30) is embedded in the bottom of the shielding shell (23); a through hole opened on the top of the shielding shell (23) is movably connected to a driving rod (26), and an electromagnet (32) is fixed on the bottom of the driving rod (26); a spring (27) is clamped between the electromagnet (32) and the shielding shell (23); an application plate (24) is fixed on the top of the driving rod (26); an L-shaped plate (34) is fixed on the outer wall of the top of the accommodating seat (16), and a pressure sensor (25) is fixed on the inner wall of the top of the L-shaped plate (34); an alarm (22) is fixed on the outer wall of the top of the L-shaped plate (34); and the alarm (22), the pressure sensor (25), the electromagnet (32), the resistor (28) and the conductive sheet (33) are electrically connected.

8. A composite packaged fuel cell stack, packaged according to the packaging device according to any one of claims 1 to 7, characterized in that: The invention comprises a negative electrode side end plate (41), a positive electrode side end plate (42), a negative electrode side current collecting plate (8), a positive electrode side current collecting plate (17) and a plurality of stacked core bodies (2), wherein the negative electrode side current collecting plate (8) is located on the inner side of the negative electrode side end plate (41), and the positive electrode side current collecting plate (17) is located on the inner side of the positive electrode side end plate (42); a composite component (7) is fixedly connected between the negative electrode side end plate (41) and the positive electrode side end plate (42), and the composite component (7) is located around the core body (2) and is used for positioning in the long side and short side directions.

9. The composite packaged fuel cell stack according to claim 8, characterized in that: The composite component (7) comprises a metal drawstring and an insulating component.

10. A packaging method, comprising packaging a composite packaged fuel cell stack according to the packaging device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: stacking the positive electrode side end plate (42), the positive electrode side current collecting plate (17), the core body (2), the negative electrode side current collecting plate (8), and the negative electrode side end plate (41) on the negative electrode side fixing plate (1) to form a core assembly; S2: The clamping plate (4) is slid along the slide rod (6). When the one-way latching tooth (36) is synchronously moved to a set height, the one-way latching tooth (36) and the tooth plate (39) are engaged with each other, and the threaded stopper (40) is used to lock the stand (35) and the lining rod (38). S3: Rotate the bidirectional threaded rod (5) so that the two conical heads (10) press the conical head 1 (13) during the lateral movement, so that the positive electrode side fixing plate (3) moves downward and is pressed against the top of the core assembly; S4: Threading the nut (19) and the threaded column (15) to fix the transverse plate (20) and the threaded column (15) to achieve assembly of the core assembly; S5: Fix the composite assembly (7) on the positive electrode side end plate (42) and the negative electrode side end plate (41) to form positioning in the long side and short side directions.

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