Assembly line equipment and assembly method for fuel cell stack

Abstract

A production line for assembling a fuel cell stack and an assembly method thereof. The production line for assembling a fuel cell stack includes a conveying device, a stacking device, and a bundling device. The conveying device includes a conveying track and at least one workbench, and has a stacking station and a bundling station, wherein the conveying track extends from the stacking station to the bundling station, and the workbench is correspondingly arranged on the conveying track for transporting the workbench between the stacking station and the bundling station. The stacking device is correspondingly arranged at the stacking station for stacking a plurality of fuel cell monomers on the workbench. The bundling device is correspondingly arranged at the bundling station and includes a pressure mechanism and a bundling mechanism, wherein the pressure mechanism is used to apply pressure to the plurality of fuel cell monomers to compact them, and the bundling mechanism is used to bundle the compacted plurality of fuel cell monomers.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cells, and in particular to an assembly line device and an assembly method for assembling a fuel cell stack. Background Art

[0002] A fuel cell is a power generation device that converts the chemical energy in a fuel directly into electrical energy through an electrochemical reaction. However, the voltage and output power provided by a single fuel cell (or fuel cell cell) are relatively low. In practical applications, multiple fuel cells are typically stacked together to form a fuel cell stack capable of achieving high voltage and high power output. Accordingly, a fuel cell stack is formed by stacking multiple fuel cell cells together.

[0003] The fuel cell stack of a fuel cell needs to maintain structural stability during use to ensure that the fuel cell maintains a stable and continuous power output. The fuel cell stack of existing fuel cells is mostly fixed together by fastening means, such as screw fixing. However, when the fuel cell monomers stacked together are directly fixed together, it is easy to cause uneven force on various parts of the fuel cell stack. Uneven force on various parts of the fuel cell stack may affect the sealing performance and power transmission performance of the fuel cell stack, and ultimately affect the power output of the fuel cell stack. In addition, uneven force on various parts of the fuel cell stack may also cause the flow field plate of the fuel cell stack to deform due to excessive local force, and even cause damage to the proton exchange membrane, making the fuel cell stack unusable. Therefore, before being fixed, the existing fuel cell stack often needs to be pressed by a pressing machine so that the fuel cell monomers of the fuel cell stack are tightly stacked together to ensure the sealing performance of the fuel cell stack.

[0004] An existing fuel cell automatic stacking device generally includes a stacking mechanism, a removal mechanism, a manipulator and a control mechanism. The fuel cell automatic stacking device can move the stacking frame of the stacking mechanism through a guide rail set on a workbench, so that the tightening frame of the stacking frame of the stacking mechanism can be aligned with and press the fuel cell stack set on the mounting platform of the stacking mechanism, and then fix the compressed fuel cell stack together by screw fixing.

[0005] However, when using screws to fix the fuel cell stack, the automatic fuel cell stack assembly device not only requires the use of professional tools (such as wrenches, etc.) to manually fix the compressed fuel cell stack together, resulting in low assembly efficiency and increased costs of the fuel cell stack; but also, in order to ensure the structural stability of the fuel cell stack, it is often necessary to use multiple pairs of screws to achieve the purpose of tightening, but this will aggravate the problem of uneven force because the tightening force of multiple screws is difficult to be consistent. In particular, once the tightening force of the same pair of screws is different, it is very easy to cause the fuel cell monomer to warp or deform, and the sealing performance of the fuel cell stack cannot be ensured. Summary of the Invention

[0006] An advantage of the present invention is that it provides an assembly line device and an assembly method for assembling a fuel cell stack, which can realize the automated assembly of the fuel cell stack, thereby improving assembly efficiency and reducing assembly costs.

[0007] Another advantage of the present invention is that it provides an assembly line equipment and assembly method for assembling fuel cell stacks. In one embodiment of the present invention, the assembly line equipment for assembling fuel cell stacks can firmly bundle multiple compressed fuel cell monomers through bundling elements such as straps or ropes, so that each part of the fuel cell stack is evenly stressed.

[0008] Another advantage of the present invention is that it provides an assembly line equipment and assembly method for assembling fuel cell stacks. In one embodiment of the present invention, the assembly line equipment for assembling fuel cell stacks can minimize manual operations, which helps to significantly reduce labor costs.

[0009] Another advantage of the present invention is that it provides an assembly line apparatus and method for assembling a fuel cell stack, wherein, to achieve the aforementioned objectives, the present invention does not require the use of expensive materials or complex structures. Therefore, the present invention successfully and effectively provides a solution that not only provides a simple assembly line apparatus and method for assembling a fuel cell stack, but also increases the practicality and reliability of the assembly line apparatus and method for assembling a fuel cell stack.

[0010] In order to achieve at least one of the above advantages or other advantages and purposes, the present invention provides an assembly line device for assembling a fuel cell stack, comprising:

[0011] A conveying device, wherein the conveying device comprises a conveying track and at least one workbench, and the conveying device has a stacking station and a strapping station, wherein the conveying track extends from the stacking station to the strapping station, and the workbench is correspondingly arranged on the conveying track for conveying the workbench between the stacking station and the strapping station;

[0012] a stacking device, wherein the stacking device is correspondingly provided at the stacking station of the conveying device, and is used for stacking a plurality of fuel cell monomers of the fuel cell stack onto the workbench located at the stacking station; and

[0013] A bundling device, wherein the bundling device is correspondingly arranged at the bundling station of the conveying device, and the bundling device includes a pressing mechanism and a bundling mechanism, wherein the pressing mechanism is used to pressurize the multiple fuel cell monomers located on the workbench of the bundling station to compress the multiple fuel cell monomers, and the bundling mechanism is used to bundle the compressed multiple fuel cell monomers.

[0014] According to one embodiment of the present application, the stacking device includes a robotic arm and at least one positioning tool, wherein the robotic arm is used to sequentially grab the multiple fuel cell monomers and place them on the positioning tool, so that the multiple fuel cell monomers are positioned and stacked together through the positioning tool.

[0015] According to one embodiment of the present application, the pressure mechanism of the bundling device includes a frame, a support, a power device and a pressure plate assembly, wherein the frame is correspondingly arranged at the bundling station of the conveying device, and the support is arranged on the frame to be located above the bundling station, wherein the power device is arranged on the support, and the pressure plate assembly is drivably arranged on the power device, and is used for applying downward pressure under the drive of the power device to compress the multiple fuel cell monomers in the positioning tool located at the bundling station, and lifting them upward to be suspended under the drive of the power device.

[0016] According to an embodiment of the present application, the conveying device further includes a base, wherein the conveying track is arranged on the machine base, and the frame of the pressure mechanism is fixed to the machine base.

[0017] According to one embodiment of the present application, the bundling mechanism of the bundling device includes a turntable assembly and a fixing assembly, wherein the turntable assembly is configured to releasably accommodate a bundling element to tighten the bundling element wrapped around the multiple compressed fuel cell monomers, and wherein the fixing assembly is correspondingly configured to fixedly connect the tightened bundling element to form an annular bundling space.

[0018] According to one embodiment of the present application, the bundling mechanism of the bundling device includes a turntable assembly and a fixing assembly, wherein the turntable assembly is arranged on the support platform of the pressure mechanism, and is used to releasably accommodate a bundling element to tighten the bundling element that is wrapped around the multiple compressed fuel cell monomers, wherein the fixing assembly is correspondingly arranged on the support platform of the pressure mechanism, and is used to fixedly connect the tightened bundling element to form an annular bundling space.

[0019] According to one embodiment of the present application, the turntable assembly of the bundling mechanism includes a reel and a driving device, wherein the reel is rotatably arranged on the support platform of the pressure mechanism, and is used to drive the reel to rotate forward to release the bundling element when the first end of the bundling element is pulled, and the driving device is drivably connected to the reel, and is used to drive the reel to rotate in the opposite direction to roll up the extended body of the bundling element.

[0020] According to one embodiment of the present application, the fixing assembly of the bundling mechanism includes a welding machine and a cutting machine, wherein the welding machine is used to weld the first end of the bundling element to the extended body of the bundling element, and the cutting machine is used to cut off the extended body of the bundling element.

[0021] According to one embodiment of the present application, the bundling mechanism further includes a motion component, wherein the Yudong component includes a dual-degree-of-freedom moving element correspondingly arranged on the support and a multi-degree-of-freedom moving element correspondingly arranged on the support, wherein the turntable assembly is installed on the dual-degree-of-freedom moving element, and is used to move the turntable assembly along the length direction of the fuel cell monomer to correspond to different bundling positions on the fuel cell monomer in sequence, wherein the welding machine and the cutting machine are respectively installed on the multi-degree-of-freedom moving element, and are used to move the welding machine to the corresponding welding position, and move the cutter to the corresponding cutting position.

[0022] According to one embodiment of the present application, the strapping mechanism of the strapping device further includes a biasing assembly, wherein the biasing assembly is arranged on the side of the pressure plate assembly of the pressure-applying mechanism, and is used to bias the extended body of the strapping element so that the extended body abuts against the first end of the strapping element.

[0023] According to one embodiment of the present application, the biasing assembly of the strapping mechanism includes a biasing member, wherein the biasing member and the pressure plate assembly are spaced apart to form a gap between the biasing member and the side surface of the pressure plate assembly, and the biasing member extends downward from the pressure plate assembly to bias the extended body of the strapping element passing through the gap so that the first end of the strapping element is clamped between the multiple fuel cell monomers and the extended body.

[0024] According to one embodiment of the present application, the biasing member of the biasing assembly has a window, and when the biasing member biases the extended body of the strapping element, the welding machine of the fixing assembly is aligned with the extended body through the window to weld the extended body and the first end of the strapping element together.

[0025] According to one embodiment of the present application, the biasing member includes an upper pressure arm, a lower pressure arm and a connecting arm, wherein the upper pressure arm and the lower pressure arm are arranged at intervals, and the two ends of the connecting arm are respectively connected to the upper pressure arm and the lower pressure arm to form the window between the upper pressure arm and the lower pressure arm.

[0026] According to an embodiment of the present application, the connecting arm integrally extends from the end of the upper pressing arm to the end of the lower pressing arm to form the biasing member having a U-shaped structure.

[0027] According to an embodiment of the present application, the movable member is provided on the pressure plate assembly of the pressure mechanism, and the biasing member is installed on the movable member so as to move the biasing member to a position corresponding to the bundling position of the fuel cell units through the movable member.

[0028] According to an embodiment of the present application, the turntable assembly further comprises a guide, wherein the guide is used to guide the extended body of the strapping element from the reel to the biasing assembly so as to bypass the pallet.

[0029] According to one embodiment of the present application, the guide member includes a guide arm and a plurality of pulley groups, wherein the guide arm extends in a bent manner from a position adjacent to the reel to a position adjacent to the gap of the biasing assembly, and the plurality of pulley groups are respectively arranged at the bending position of the guide arm, so as to allow the extended body of the strapping element to pass through the pulley groups at the bending position of the guide arm.

[0030] According to one embodiment of the present application, the strapping mechanism of the strapping device further includes a tension detection component, wherein the tension detection component is arranged on the turntable assembly for detecting the tension applied by the reel of the turntable assembly to the extended body of the strapping element.

[0031] According to one embodiment of the present application, the assembly line equipment for assembling fuel cell stacks further includes a control unit, wherein the control unit includes a stacking control module, a conveying control module and a bundling control module, wherein the stacking control module is configured to control the stacking device to stack the multiple fuel cell monomers at the stacking station according to a stacking instruction, wherein the conveying control module is configured to control the conveying device to convey the stacked multiple fuel cell monomers from the stacking station to the bundling station according to a conveying instruction, wherein the bundling control module is configured to control the bundling device to bundle the multiple fuel cell monomers at the bundling station according to a bundling instruction.

[0032] According to another aspect of the present application, an embodiment of the present application further provides a method for assembling a fuel cell stack, comprising the steps of:

[0033] Stacking a plurality of fuel cell monomers on a workbench located at a stacking station so that the plurality of fuel cell monomers are stacked between an upper end plate and a lower end plate;

[0034] transporting the stacked fuel cell monomers from the stacking station to a bundling station; and

[0035] The plurality of fuel cell units located on the workbench of the bundling station are bundled to assemble a fuel cell stack.

[0036] According to one embodiment of the present application, the step of bundling the plurality of fuel cell units located on the workbench of the bundling station to assemble a fuel cell stack includes the steps of:

[0037] applying pressure to the plurality of fuel cell monomers on the workbench of the bundling station to compact the plurality of fuel cell monomers; and

[0038] The compressed fuel cell monomers are bundled so that the fuel cell monomers are bound between the upper end plate and the lower end plate to form the fuel cell stack.

[0039] According to one embodiment of the present application, the step of bundling the compressed plurality of fuel cell monomers so that the plurality of fuel cell monomers are bound between the upper end plate and the lower end plate to assemble the fuel cell stack comprises the following steps:

[0040] wrapping the compressed plurality of fuel cell units with a bundling member;

[0041] welding the extended body of the strapping element to the first end of the strapping element; and

[0042] The extended body of the tying element is cut so that the cutout on the extended body of the tying element serves as a new first end of the tying element.

[0043] According to one embodiment of the present application, the step of wrapping the compressed plurality of fuel cell monomers with an extended body of a bundling element includes the steps of:

[0044] pulling the first end of the strapping element wound on the reel of the turntable assembly to rotate the reel in a forward direction to release the extended body of the strapping element;

[0045] Passing the first end of the bundling element through the lower end plate and the upper end plate in sequence, so that the extended body of the bundling element surrounds the compressed fuel cell monomers;

[0046] biasing the extended body of the strapping element to abut against the first end of the strapping element; and

[0047] The reel of the turntable assembly is driven to rotate in reverse to tighten the extended body of the bundling element to wind the compressed fuel cell monomers.

[0048] Further objects and advantages of the present invention will be fully apparent from an understanding of the following description and accompanying drawings.

[0049] These and other objects, features and advantages of the present invention will be more fully understood from the following detailed description, accompanying drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a three-dimensional schematic diagram of an assembly line device for assembling a fuel cell stack according to an embodiment of the present application.

[0051] Figure 2 A schematic diagram shows the assembly line equipment for assembling a fuel cell stack according to the above embodiment of the present application in a stacking state.

[0052] Figure 3 A schematic diagram showing the production line equipment for assembling a fuel cell stack according to the above embodiment of the present application in a conveying state is shown.

[0053] Figures 4A to 4G Partially enlarged schematic diagrams of the assembly line equipment for assembling a fuel cell stack according to the above embodiments of the present application in a bundled state are respectively shown.

[0054] Figure 5 A block diagram of a control unit in the assembly line equipment for assembling a fuel cell stack according to the above embodiment of the present application is shown.

[0055] Figure 61 is a flow chart of a method for assembling a fuel cell stack according to an embodiment of the present application.

[0056] Figures 7 to 9 A schematic flow chart of the bundling step in the fuel cell stack assembly method according to the above embodiment of the present application is shown. DETAILED DESCRIPTION

[0057] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0058] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying 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. Therefore, the above terms should not be understood as limiting the present invention.

[0059] In the present invention, the term "a" or "an" in the claims and the specification should be understood as "one or more." That is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple. Unless the disclosure of the present invention clearly indicates that the number of the element is only one, the term "a" or "an" should not be understood as a unique or singular element, and the term "a" or "an" should not be understood as a limitation on the quantity.

[0060] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not 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 "connected" and "connected" 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 a direct connection or an indirect connection through a medium. 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.

[0061] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0062] Referring to the accompanying drawings of the present invention Figures 1 to 3 According to an embodiment of the present invention, a production line for assembling a fuel cell stack is illustrated, which is used to assemble a plurality of fuel cell monomers 801 into a fuel cell stack 800. Specifically, the production line 1 for assembling a fuel cell stack may include a conveying device 10, a stacking device 20, and a bundling device 30.

[0063] like Figures 1 to 3 As shown, the conveying device 10 may include a transmission track 11 and at least one workbench 12, and has a stacking station 101 and a bundling station 102, wherein the transmission track 11 extends from the stacking station 101 to the bundling station 102, and the workbench 12 is correspondingly arranged on the transmission track 11, for conveying the workbench 12 between the stacking station 101 and the bundling station 102.

[0064] like Figure 1 and Figure 2 As shown, the stacking device 20 is correspondingly arranged at the stacking station 101 of the conveying device 10 , and is used to stack the multiple fuel cell monomers 801 of the fuel cell stack 800 onto the workbench 12 located at the stacking station 101 .

[0065] like Figures 3 to 4G As shown, the bundling device 30 is correspondingly arranged at the bundling station 102 of the conveying device 10, and the bundling device 30 includes a pressure mechanism 31 and a bundling mechanism 32, wherein the pressure mechanism 31 is used to apply pressure to the multiple fuel cell monomers 801 located on the workbench 12 of the bundling station 102 to compress the multiple fuel cell monomers 801, and the bundling mechanism 32 is used to bundle the compressed multiple fuel cell monomers 801 to assemble the fuel cell stack 800.

[0066] More specifically, if Figure 1 and Figure 2As shown, the stacking device 20 may include a robotic arm 21 and at least one positioning fixture 22, wherein the robotic arm 21 is used to sequentially grasp the multiple fuel cell monomers 801 (or the plates and membrane electrode assemblies that constitute the fuel cell monomers 801, etc.) and place them on the positioning fixture 22, so that the multiple fuel cell monomers 801 grasped by the robotic arm 21 can be positioned and stacked together through the positioning fixture 22, wherein the positioning fixture 22 can be pre-fixed on the workbench 12.

[0067] It is worth noting that since the assembly line equipment 1 for assembling fuel cell stacks of the present application can first use the robotic arm 21 at the stacking station 101 to mechanically stack multiple fuel cell monomers 801 on the positioning tool 22 located on the workbench 12, and then use the conveying device 10 to transport the positioning tool 22 stacked with the multiple fuel cell monomers 801 from the stacking station 101 to the bundling station 102, and finally use the bundling device 30 at the bundling station 102 to bundle the multiple fuel cell monomers 801, the assembly line equipment 1 for assembling fuel cell stacks of the present application can not only realize the automated assembly of fuel cell stacks to improve assembly efficiency, but also reduce the amount of manual labor in the assembly process and reduce assembly costs.

[0068] In addition, since the fuel cell stack 800 includes the plurality of fuel cell monomers 801, it generally also includes an upper end plate 802 and a lower end plate 803 (such as Figure 2As shown), and the multiple fuel cell monomers 801 are stacked between the upper end plate 802 and the lower end plate 803, so the robotic arm 21 of the stacking device 20 of the assembly line equipment 1 for assembling fuel cell stacks of the present application can first grab the lower end plate 803 to place it on the positioning fixture 22 before grabbing the multiple fuel cell monomers 801 to place them on the positioning fixture 22, and after grabbing the multiple fuel cell monomers 801 to place them on the positioning fixture 22, it can grab the upper end plate 802 to place it on the positioning fixture 22, so that the multiple fuel cell monomers 801 are located between the upper end plate 802 and the lower end plate 803. Of course, in other examples of the present application, the lower end plate 803 can also be manually placed in advance on the positioning fixture 22, and the upper end plate 802 can also be manually placed in the positioning fixture 22 afterwards, as long as it is ensured that the multiple fuel cell monomers 801 are located between the upper end plate 802 and the lower end plate 803. This application will not elaborate on this. Of course, other components that make up the fuel cell stack 800, such as collector plates, insulating plates, etc., can also be stacked by the robotic arm 21 at corresponding positions on the fuel cell stack 800, that is, the robotic arm 21 can grasp the corresponding components in the stacking order of the various components that make up the fuel cell stack 800 and place them on the positioning fixture 22 to achieve stacking.

[0069] According to the above embodiments of the present application, Figures 3 to 4G As shown, the pressure mechanism 31 of the bundling device 30 may include a frame 311, a support platform 312, a power device 313 and a pressure plate assembly 314, wherein the frame 311 is correspondingly arranged at the bundling station 102 of the conveying device 10, and the support platform 312 is arranged on the frame 311 to be located above the bundling station 102, wherein the power device 313 is arranged on the support platform 312, and the pressure plate assembly 314 is drivably arranged on the power device 313, and is used for applying downward pressure under the drive of the power device 313 to compress the multiple fuel cell monomers 801 in the positioning tool 22 located at the bundling station 102, and lifting them upward to be suspended under the drive of the power device 313.

[0070] Preferably, if Figure 3 As shown, the conveying device 10 may further include a base 13, wherein the conveying track 11 is disposed on the base 13 to raise the height of the transmission track 11 and the workbench 12 above the ground, thereby facilitating assembly operations on the workbench 12. In particular, the frame 311 of the pressure mechanism 31 of the strapping device 30 is fixed to the base 13, so that the downward pressure provided by the power device 313 is smoothly transmitted to the pressure plate assembly 314.

[0071] It is worth noting that when the pressure plate assembly 314 in the assembly line equipment 1 for assembling a fuel cell stack of the present application moves forward under the drive of the power device 313 so as to press against the multiple fuel cell monomers 801, the pressure provided by the power device 313 can be applied to the multiple fuel cell monomers 801 through the pressure plate assembly 314. It is understood that in order to facilitate the uniform distribution of the pressure applied to the multiple fuel cell monomers 801 by the pressure plate assembly 314 across various parts of the multiple fuel cell monomers 801, the multiple fuel cell monomers 801 and the pressure plate assembly 314 should match each other.

[0072] Furthermore, if Figure 1 and Figure 3 As shown, to facilitate uniform application of pressure to the multiple fuel cell monomers 801 via the press plate assembly 314, the press plane 3141 of the press plate assembly 314 is positioned toward the workbench 12 (or the multiple fuel cell monomers 801) located at the bundling station 102, so that pressure can be applied to the multiple fuel cell monomers 801 via the press plane 3141 of the press plate assembly 314. Furthermore, the press plane 3141 of the press plate assembly 314 is preferably parallel to the work plane 120 of the workbench 12 (or the upper end surfaces of the multiple fuel cell monomers 801), ensuring that the pressure applied by the press plate assembly 314 is applied to the multiple fuel cell monomers 801 along the stacking direction of the multiple fuel cell monomers 801.

[0073] According to the above embodiments of the present application, Figures 3 to 4G As shown, the bundling mechanism 32 of the bundling device 30 may include a turntable assembly 321 and a fixing assembly 322, wherein the turntable assembly 321 may be arranged on the support platform 312 of the pressure mechanism 31, for releasably receiving a bundling element 70 to tighten the bundling element 70 that is wrapped around the compressed multiple fuel cell monomers 801, wherein the fixing assembly 322 may be correspondingly arranged on the support platform 312 of the pressure mechanism 31, for fixedly connecting the tightened bundling element 70 to form an annular bundling space, so that the compressed multiple fuel cell monomers 801 are constrained in the bundling space to be assembled into the fuel cell stack 800.

[0074] It can be understood that since the assembly line equipment 1 for assembling fuel cell stacks of the present application can restrain the compressed multiple fuel cell monomers 801 in the bundling space formed by the bundling element 70, when the pressure mechanism 31 removes the pressure applied to the multiple fuel cell monomers 801, the multiple fuel cell monomers 801 can still be stably restrained in the bundling space formed by the bundling element 70, thereby completing the assembly operation of the fuel cell stack 800 well.

[0075] It is worth noting that the binding element 70 of the present application is preferably made of metal or alloy material. For example, the binding element 70 can be implemented as, but not limited to, a strap, a steel rope or a steel ribbon, etc. It is understandable that, if Figure 4F As shown, the bundling element 70 may include a first end 71, a second end 72, and an extension body 73 extending between the first end 71 and the second end 72, wherein the extension body 73 is suitable for wrapping around the multiple fuel cell monomers 801 so as to bundle the multiple fuel cell monomers 801 to form the fuel cell stack 800.

[0076] Preferably, if Figures 3 to 4G As shown, the turntable assembly 321 of the bundling mechanism 32 of the present application includes a reel 3211 around which the bundling element 70 is wound, and a drive device 3212. The reel 3211 is rotatably mounted on the support 312 of the pressure mechanism 31. When the first end 71 of the bundling element 70 is pulled, the reel 3211 is driven to rotate forward to release the bundling element 70, allowing the first end 71 of the bundling element 70 to pass through the lower end plate 803 and the upper end plate 802, thereby allowing the extension body 73 of the bundling element 70 to wrap around the outer periphery of the plurality of fuel cell units 801. The drive device 3212 is drivably connected to the reel 3211 and is driven to rotate backward to reel the extension body 73 of the bundling element 70, thereby tightening the extension body 73 of the bundling element 70 to bind the plurality of fuel cell units 801.

[0077] It is understood that the “positive direction” in the positive rotation mentioned in this application refers to the direction in which the strapping element 70 can be released (e.g. Figure 4F Accordingly, the "reverse" in the reverse rotation mentioned in this application refers to the direction in which the strapping element 70 can be rolled (such as Figure 4F clockwise as shown).

[0078] It is worth noting that the second end 72 of the bundling element 70 can be wound around the reel 3211 to ensure that when the first end 71 of the bundling element 70 is pulled, the bundling element 70 will drive the reel 3211 to stably rotate in the forward direction to release the bundling element 70. In addition, the driving device 3212 can be implemented as, but is not limited to, an electric motor or an electric motor, and is configured to drive the reel 3211 to rotate in the reverse direction when powered on, thereby causing the reel 3211 to roll up the bundling element 70 to tighten the extended body 73 of the bundling element 70 wrapped around the plurality of fuel cell units 801.

[0079] It is worth mentioning that since the length of the bundling element 70 on the reel 3211 is much larger than the outer circumference of the multiple fuel cell monomers 801, the fixing component 322 in the assembly line equipment 1 for assembling fuel cell stacks of the present application fixedly connects the first end 71 of the bundling element 70 to the extended body 73 of the bundling element 70 to form the bundling space.

[0080] Preferably, if Figures 4A to 4E As shown, the fastening assembly 322 of the bundling mechanism 32 includes a welder 3221 and a cutter 3222. The welder 3221 is used to weld the first end 71 of the bundling element 70 to the extension body 73 of the bundling element 70 to form a stable bundling space, and the cutter 3222 is used to sever the extension body 73 of the bundling element 70, so that the cut portion of the extension body 73 forms a new free end of the bundling element 70 (i.e., the new first end 71), so that the bundling element 70 can continue to be used to bundle the fuel cell stack 800. It is understood that the welder 3221 and the cutter 3222 can be implemented as, but are not limited to, a laser welder and a laser cutter, respectively.

[0081] It is worth noting that Figures 4A to 4EAs shown, in order to ensure that the multiple fuel cell monomers 801 are evenly and firmly bundled together, it is usually necessary to use the bundling element 70 to bundle the multiple fuel cell monomers 801 at different bundling positions. Therefore, the bundling mechanism 32 of the present application may further include a motion component 323, wherein the motion component 323 includes a two-degree-of-freedom moving element 3231 correspondingly arranged on the support 312, and the turntable component 321 is installed on the two-degree-of-freedom moving element 3231 to move the turntable component 321 along the length direction of the fuel cell monomer 801 through the two-degree-of-freedom moving element 3231, so that the turntable component 321 corresponds to different bundling positions on the multiple fuel cell monomers 801 in sequence, thereby facilitating the bundling operation of the multiple fuel cell monomers 801.

[0082] At the same time, the motion component 323 can further include a multi-degree-of-freedom moving element 3232 correspondingly arranged on the support 312, and the welding machine 3221 and the cutting machine 3222 of the fixing component 322 are respectively installed on the multi-degree-of-freedom moving element 3232, so as to move the welding machine 3221 to the corresponding welding position through the multi-degree-of-freedom moving element 3232, and move the cutting machine 3222 to the corresponding cutting position through the multi-degree-of-freedom moving element 3232.

[0083] Exemplarily, the two-degree-of-freedom moving element 3231 of the motion component 323 of the present application can be, but is not limited to, implemented as a sliding screw (or ball screw) to move the turntable component 321 in two degrees of freedom directions along the screw; the multi-degree-of-freedom moving element 3232 of the motion component 323 of the present application can be, but is not limited to, implemented as a sliding screw (or ball screw) and multiple slide rail mechanisms to respectively move the welding machine 3221 and the cutting machine 3222 of the fixing component 322 in multiple degrees of freedom directions.

[0084] In this way, Figures 4A to 4GAs shown, when the bundling operation is performed at the bundling station 102 of the transmission device 10, first, the pressure is applied to the upper end plate 802 by the pressure plate assembly 314 of the pressure mechanism 31 to compress the multiple fuel cell monomers 801; then, the turntable assembly 321 is moved to a position corresponding to a bundling position of the multiple fuel cell monomers 801 by the double-degree-of-freedom moving element 3231 of the motion assembly 323 of the bundling mechanism 32, and then the first end 71 of the bundling element 70 is pulled to drive the reel 3211 of the turntable assembly 321 to rotate forward to release the extended body 73 of the bundling element 70, and guide the first end 71 of the bundling element 70 to pass through the lower end plate 803 and the upper end plate 802 to surround the multiple fuel cell monomers 801 for at least one circle, so that the extended body 73 of the bundling element 70 wraps around the compressed multiple fuel cell monomers 801. battery cell 801; then, after the welding machine 3221 and the cutting machine 3222 of the fixing assembly 322 are moved to the corresponding welding and cutting positions, the first end 71 of the bundling element 70 is first welded to the extended body 73 of the bundling element 70 by the welding machine 3221 of the fixing assembly 322 of the bundling mechanism 32, and then the extended body 73 of the bundling element 70 is cut off by the cutting machine 3222 of the fixing assembly 322, so that the cut portion of the extended body 73 forms the new first end 71 on the bundling element 70; finally, the turntable assembly 321 is moved to a position corresponding to the next bundling position of the multiple fuel cell monomers 801 by the two-degree-of-freedom moving element 3231 of the moving assembly 323 of the bundling mechanism 32, so as to repeat the above steps until all the bundling operations are completed to assemble the fuel cell stack 800.

[0085] According to the above embodiments of the present application, Figure 3 and Figure 4F As shown, the bundling mechanism 32 of the bundling device 30 of the assembly line equipment 1 for assembling fuel cell stacks of the present application may further include a biasing assembly 324, wherein the biasing assembly 324 is arranged on the side 3142 of the pressure plate assembly 314 of the pressure mechanism 31, and is used to bias the extended body 73 of the bundling element 70 so that the extended body 73 abuts against the first end 71 of the bundling element 70, thereby facilitating welding the first end 71 of the bundling element 70 to the extended body 73 of the bundling element 70 by the welding machine 3221 of the fixing assembly 322.

[0086] For example, Figure 3 and Figure 4FAs shown, the biasing assembly 324 may include a biasing member 3241, wherein the biasing member 3241 and the pressure plate assembly 314 of the pressure mechanism 31 are spaced apart to form a gap 3240 between the biasing member 3241 and the side surface 3142 of the pressure plate assembly 314, and the biasing member 3241 extends downward from the pressure plate assembly 314 to bias the extended body 73 of the bundling element 70 passing through the gap 3240, so that the first end 71 of the bundling element 70 is clamped between the multiple fuel cell monomers 801 and the extended body 73, so as to facilitate welding the first end 71 of the bundling element 70 to the extended body 73 of the bundling element 70 by the welding machine 3221 of the fixing assembly 322 to form the bundling space.

[0087] Preferably, if Figure 3 and Figure 4D As shown, the biasing member 3241 has a window 32410, which is used to allow the welding machine 3221 of the fixing assembly 322 to align with the extension body 73 through the window 32410 of the biasing member 3241 when the biasing member 3241 biases the extension body 73 of the tying member 70, so as to weld the extension body 73 of the tying member 70 to the first end 71 of the tying member 70. At the same time, the cutting machine 3222 of the fixing assembly 322 can cut the extension body 73 of the tying member 70 in the area of ​​the window 32410 of the biasing member 3241.

[0088] More preferably, if Figure 4D As shown, the biasing member 3241 includes an upper pressing arm 32411, a lower pressing arm 32412 and a connecting arm 32413, wherein the upper pressing arm 32411 and the lower pressing arm 32412 are arranged at intervals, and the two ends of the connecting arm 32413 are respectively connected to the upper pressing arm 32411 and the lower pressing arm 32412 to form the window 32410 between the upper pressing arm 32411 and the lower pressing arm 32412, so as to facilitate the simultaneous biasing of the extended body 73 of the bundling element 70 by the upper pressing arm 32411 and the lower pressing arm 32412, so that the extended body 73 of the bundling element 70 is tightly fitted to the first end 71 of the bundling element 70 in the area corresponding to the window 32410, so that the welding machine 3221 can perform stable welding in the window 32410 area.

[0089] Furthermore, the width of the window 32410 is not less than the width of the bundling element 70 to ensure that the welding machine 3221 can fully weld in the width direction of the bundling element 70 and the cutting machine 3222 can fully cut in the width direction of the bundling element 70.

[0090] Most preferably, as Figure 4D As shown, the connecting arm 32413 integrally extends from the end of the upper pressure arm 32411 to the end of the lower pressure arm 32412 to form the biasing member 3241 with a U-shaped structure, so that the window 32410 of the biasing member 3241 has a side notch.

[0091] In addition, if Figure 4D As shown, the biasing assembly 324 may further include a moving member 3242, wherein the moving member 3242 is disposed on the pressure plate assembly 314 of the pressure-applying mechanism 31, and the biasing member 3241 is mounted on the moving member 3242, so that the biasing member 3241 is moved to a position corresponding to the bundling position of the fuel cell monomers 801 by the moving member 3242, thereby facilitating biasing the extension body 73 of the bundling element 70. It is understood that the moving member 3242 of the present application may be implemented as, but is not limited to, a sliding screw or a ball screw.

[0092] It is worth noting that since the multiple fuel cell monomers 801 located at the bundling station 102 are directly below the support 312 of the pressure mechanism 31, and the turntable assembly 321 is usually installed on the support 312, when the reel 3211 of the turntable assembly 321 rotates in the opposite direction to roll the extended body 73 of the bundling element 70, the extended body 73 will be tightened to bend at the edge of the support 312, so that the extended body 73 of the bundling element 70 is stuck at the support 312, which makes it difficult for the extended body 73 of the bundling element 70 to bundle the multiple fuel cell monomers 801 well. Therefore, in order to solve this problem, the turntable assembly 321 of the bundling mechanism 32 of the bundling device 30 of the present application may further include a guide 3213, wherein the guide 3213 is used to guide the extended body 73 of the bundling element 70 from the reel 3211 to the gap 3240 to bypass the support 312, thereby avoiding the extended body 73 of the bundling element 70 from bending at the support 312, which helps to reduce the friction force on the extended body 73 of the bundling element 70.

[0093] For example, Figure 4FAs shown, the guide member 3213 of the turntable assembly 321 may include a guide arm 32131 and a plurality of pulley sets 32132, wherein the guide arm 32131 extends in a bent manner from a position adjacent to the reel 3211 to a position adjacent to the gap 3240, and the plurality of pulley sets 32132 are respectively arranged at the bending parts of the guide arm 32131, so that the extended body 73 of the bundling element 70 can pass through the pulley set 32132 at the bending part of the guide arm 32131 and greatly reduce the friction force exerted on the extended body 73 of the bundling element 70, so as to better tighten the extended body 73 of the bundling element 70 to tightly bundle the multiple fuel cell monomers 801.

[0094] It is worth mentioning that when the reel 3211 of the turntable assembly 321 rotates in the opposite direction to roll up the extension body 73 of the bundling element 70, the extension body 73 of the bundling element 70 will be tightened to bind the multiple fuel cell monomers 801. While applying a sufficiently large pulling force to the extension body 73 of the bundling element 70 to reliably fasten the multiple fuel cell monomers 801, it is also necessary to avoid excessive pulling force applied to the extension body 73 of the bundling element 70, which may cause abnormal deformation or even damage to the fuel cell stack monomers 801. Therefore, in order to solve the above problem, as Figure 4F As shown, the bundling mechanism 32 of the bundling device 30 of the assembly line equipment 1 for assembling fuel cell stacks of the present application can further include a tension detection component 325, wherein the tension detection component 325 is arranged on the turntable component 321, and the tension detection component 325 is used to detect the tension applied by the reel 3211 of the turntable component 321 to the extended body 73 of the bundling element 70, so as to control the magnitude of the driving force applied by the driving device 3212 of the turntable component 321 to the reel 3211 according to the tension detection result, thereby ensuring that the extended body 73 of the bundling element 70 is subjected to a tension of appropriate magnitude.

[0095] For example, Figure 4F As shown, the tension detection assembly 325 may include a tension-compression conversion mechanism 3251 and a pressure sensor 3252, wherein the tension-compression conversion mechanism 3251 is arranged on the reel assembly 321, and is used to convert the tension exerted on the extended body 73 of the strapping element 70 into pressure, wherein the pressure sensor 3252 is used to detect the pressure converted by the tension-compression conversion mechanism 3251, and then obtain the tension exerted on the extended body 73 of the strapping element 70.

[0096] According to the above embodiments of the present application, Figure 5As shown, the assembly line equipment 1 for assembling a fuel cell stack of the present application may further include a control unit 40, wherein the control unit 40 may include a stacking control module 41, wherein the stacking control module 41 is configured to control the stacking device 20 to stack the plurality of fuel cell units 801 at the stacking station 101 according to a stacking instruction. It is understood that the stacking instruction may be received from a control panel or a communication module.

[0097] Preferably, the stacking instruction can also be pre-stored in the stacking control module 41, so that when the workbench 12 of the conveying device 10 is at the stacking station 101, the stacking control module 41 automatically calls the stacking instruction to control the robotic arm 21 to perform the corresponding stacking task until the multiple fuel cell monomers 801 are stacked.

[0098] It is worth noting that Figure 5 As shown, the control unit 40 may further include a conveying control module 42, wherein the conveying control module 42 is configured to control the conveying device 10 to transfer the stacked fuel cell monomers 801 from the stacking station 101 to the bundling station 102 according to a conveying instruction. It is understood that the conveying instruction may be received from a control panel or a communication module.

[0099] Preferably, the conveying instruction can also be pre-stored in the conveying control module 42, so that when the robotic arm 21 of the stacking device 20 completes the stacking task, the conveying control module 42 automatically calls the conveying instruction to control the conveying track 11 to perform the corresponding conveying task until the workbench 12 is conveyed to the bundling station 102.

[0100] According to the above embodiments of the present application, Figure 5 As shown, the control unit 40 may further include a bundling control module 43, wherein the bundling control module 43 is configured to control the bundling device 30 to bundle the plurality of fuel cell units 801 at the bundling station 102 according to a bundling instruction. It is understood that the bundling instruction may be received from a control panel or a communication module.

[0101] Preferably, the bundling instructions may also be pre-stored in the bundling control module 43 , so that when the workbench 12 is at the bundling station 102 , the bundling control module 43 automatically calls the bundling instructions to control the bundling device 30 to perform the corresponding bundling task.

[0102] According to another aspect of the present application, the present application further provides a fuel cell stack assembly method for assembling a plurality of fuel cell monomers 801 into a fuel cell stack 800. Specifically, as Figure 6 As shown, the method for assembling the fuel cell stack may include the following steps:

[0103] S100: stacking a plurality of fuel cell units on a workbench located at a stacking station so that the plurality of fuel cell units are stacked between an upper end plate and a lower end plate;

[0104] S200: transporting the stacked fuel cell units from the stacking station to the bundling station; and

[0105] S300: Bundling the plurality of fuel cell units on the workbench of the bundling station to assemble a fuel cell stack.

[0106] It is worth noting that Figure 7 As shown, the step S300 of the fuel cell stack assembly method of the present application may include the following steps:

[0107] S310: applying pressure to the plurality of fuel cell monomers on the workbench of the bundling station to compact the plurality of fuel cell monomers; and

[0108] S320: bundling the compressed fuel cell monomers so that the fuel cell monomers are bound between the upper end plate and the lower end plate to form the fuel cell stack.

[0109] In an example of this application, Figure 8 As shown, step S310 of the fuel cell stack assembly method of the present application may include the following steps:

[0110] S311: Wrapping the compressed fuel cell monomers with a bundling element;

[0111] S312: Welding the extended body of the tying element and the first end of the tying element together; and

[0112] S313: Cutting the extension body of the tying element so that the cutout on the extension body of the tying element serves as a new first end of the tying element.

[0113] Furthermore, if Figure 9 As shown, the step S311 of the fuel cell stack assembly method of the present application may include the following steps:

[0114] S3111: Pulling the first end of the tying element wound on the reel of the turntable assembly to rotate the reel in a forward direction to release the extended body of the tying element;

[0115] S3112: Passing the first end of the bundling element through the lower end plate and the upper end plate in sequence, so that the extended body of the bundling element surrounds the compressed plurality of fuel cell monomers;

[0116] S3113: biasing the extended body of the strapping element to abut against the first end of the strapping element; and

[0117] S3114: driving the reel of the turntable assembly to rotate in the opposite direction to tighten the extension body of the bundling element to wind up the compressed plurality of fuel cell monomers.

[0118] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved.

[0119] The functional and structural principles of the present invention have been demonstrated and described in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed or modified in any way.

Claims

1. A production line device for assembling a fuel cell stack, characterized in that: include: A conveying device, wherein the conveying device comprises a conveying track and at least one workbench, and the conveying device has a stacking station and a strapping station, wherein the conveying track extends from the stacking station to the strapping station, and the workbench is correspondingly arranged on the conveying track for conveying the workbench between the stacking station and the strapping station; a stacking device, wherein the stacking device is correspondingly provided at the stacking station of the conveying device, and is used for stacking a plurality of fuel cell monomers of the fuel cell stack onto the workbench located at the stacking station; and a bundling device, wherein the bundling device is correspondingly provided at the bundling station of the conveying device, and the bundling device comprises a pressing mechanism and a bundling mechanism, wherein the pressing mechanism is used to apply pressure to the plurality of fuel cell monomers located on the workbench of the bundling station to compress the plurality of fuel cell monomers, and the bundling mechanism is used to bundle the compressed plurality of fuel cell monomers using a bundling element, the bundling element comprising a first end, a second end, and an extended body extending between the first end and the second end, the second end of the bundling element being wound around a reel of a turntable assembly of the bundling mechanism, and a fixing assembly of the bundling mechanism comprising a welding machine and a cutting machine, wherein the welding machine is used to weld the first end of the bundling element to the extended body of the bundling element, and the cutting machine is used to cut the extended body of the bundling element; The strapping mechanism of the strapping device further comprises a biasing assembly, wherein the biasing assembly is disposed on a side of the pressure plate assembly of the pressure applying mechanism, for biasing the extension body of the strapping element so that the extension body abuts against the first end of the strapping element; The biasing assembly of the strapping mechanism includes a biasing member, wherein the biasing member is spaced apart from the pressure plate assembly to form a gap between the biasing member and the side surface of the pressure plate assembly, and the biasing member extends downward from the pressure plate assembly for biasing the extended body of the strapping element passing through the gap; The biasing member has a window, which is used to allow the welding machine of the fixing assembly to align with the extension body through the window when the biasing member biases the extension body of the tying element, so as to weld the extension body and the first end of the tying element together, and allow the cutting machine of the fixing assembly to cut the extension body of the tying element in the area of ​​the window of the biasing member.

2. The assembly line equipment for assembling a fuel cell stack according to claim 1, wherein: The stacking device includes a robotic arm and at least one positioning fixture, wherein the robotic arm is used to sequentially grab the multiple fuel cell monomers and place them on the positioning fixture, so that the multiple fuel cell monomers are positioned and stacked together through the positioning fixture.

3. The assembly line equipment for assembling a fuel cell stack according to claim 2, wherein: The pressure mechanism of the bundling device includes a frame, a support, a power unit and a pressure plate assembly, wherein the frame is correspondingly arranged at the bundling station of the conveying device, and the support is arranged on the frame to be located above the bundling station, wherein the power unit is arranged on the support, and the pressure plate assembly is drivably arranged on the power unit, and is used for applying downward pressure under the drive of the power unit to compress the multiple fuel cell monomers in the positioning tool located at the bundling station, and lifting them upward to be suspended under the drive of the power unit.

4. The assembly line equipment for assembling a fuel cell stack according to claim 3, wherein: The conveying device further includes a machine base, wherein the conveying track is arranged on the machine base, and the frame of the pressing mechanism is fixed to the machine base.

5. The assembly line equipment for assembling a fuel cell stack according to claim 1, wherein: The bundling mechanism of the bundling device also includes a turntable assembly, wherein the turntable assembly is configured to releasably accommodate the bundling element to tighten the bundling element wrapped around the compressed multiple fuel cell monomers, wherein the fixing assembly is correspondingly configured to fixedly connect the tightened bundling element to form an annular bundling space.

6. The assembly line equipment for assembling a fuel cell stack according to claim 4, wherein: The bundling mechanism of the bundling device also includes a turntable assembly, wherein the turntable assembly is arranged on the support platform of the pressure mechanism, and is used to releasably accommodate the bundling element to tighten the bundling element wrapped around the compressed multiple fuel cell monomers, wherein the fixing assembly is correspondingly arranged on the support platform of the pressure mechanism, and is used to fixedly connect the tightened bundling element to form an annular bundling space.

7. The production line equipment for assembling a fuel cell stack according to claim 6, wherein: The turntable assembly of the strapping mechanism includes a reel and a driving device, wherein the reel is rotatably arranged on the support platform of the pressure mechanism, and is used to drive the reel to rotate forward to release the strapping element when the first end of the strapping element is pulled, and the driving device is drivably connected to the reel, and is used to drive the reel to rotate in the opposite direction to roll up the extended body of the strapping element.

8. The production line equipment for assembling a fuel cell stack according to claim 7, wherein: The bundling mechanism further includes a motion component, wherein the motion component includes a two-degree-of-freedom moving element correspondingly arranged on the support and a multi-degree-of-freedom moving element correspondingly arranged on the support, wherein the turntable assembly is installed on the two-degree-of-freedom moving element, and is used to move the turntable assembly along the length direction of the fuel cell monomer to correspond to different bundling positions on the fuel cell monomer in sequence, wherein the welding machine and the cutting machine are respectively installed on the multi-degree-of-freedom moving element, and are used to move the welding machine to the corresponding welding position, and move the cutting machine to the corresponding cutting position.

9. The production line equipment for assembling a fuel cell stack according to claim 8, wherein: The biasing member includes an upper pressure arm, a lower pressure arm and a connecting arm, wherein the upper pressure arm and the lower pressure arm are arranged at intervals, and the two ends of the connecting arm are respectively connected to the upper pressure arm and the lower pressure arm to form the window between the upper pressure arm and the lower pressure arm.

10. The production line equipment for assembling a fuel cell stack according to claim 9, wherein: The connecting arm integrally extends from the end of the upper pressing arm to the end of the lower pressing arm to form the biasing member having a U-shaped structure.

11. The production line equipment for assembling a fuel cell stack according to claim 10, wherein: The biasing assembly further includes a moving member provided on the pressure plate assembly of the pressure mechanism, and the biasing member is mounted on the moving member so as to be moved by the moving member to a position corresponding to the bundling position of the fuel cell units.

12. The production line equipment for assembling a fuel cell stack according to claim 8, wherein: The turntable assembly further includes a guide, wherein the guide is used to guide the extended body of the strapping element from the reel to the biasing assembly to bypass the pallet.

13. The production line equipment for assembling a fuel cell stack according to claim 12, wherein: The guide member includes a guide arm and a plurality of pulley groups, wherein the guide arm extends in a bent manner from a position adjacent to the reel to a position adjacent to the gap of the biasing assembly, and the plurality of pulley groups are respectively arranged at the bending position of the guide arm, so as to allow the extended body of the tying element to pass through the pulley groups at the bending position of the guide arm.

14. The production line equipment for assembling a fuel cell stack according to claim 13, wherein: The strapping mechanism of the strapping device further comprises a tension detection component, wherein the tension detection component is disposed on the turntable assembly and is used to detect the tension applied by the reel of the turntable assembly to the extending body of the strapping element.

15. The assembly line equipment for assembling a fuel cell stack as described in any one of claims 1 to 14, further comprising a control unit, wherein the control unit comprises a stacking control module, a conveying control module and a bundling control module, wherein the stacking control module is configured to control the stacking device to stack the multiple fuel cell monomers at the stacking station according to a stacking instruction, wherein the conveying control module is configured to control the conveying device to convey the stacked multiple fuel cell monomers from the stacking station to the bundling station according to a conveying instruction, wherein the bundling control module is configured to control the bundling device to bundle the multiple fuel cell monomers at the bundling station according to a bundling instruction.

16. A method for assembling a fuel cell stack, using the assembly line equipment for assembling a fuel cell stack according to any one of claims 1 to 14, characterized in that: Including steps: Stacking a plurality of fuel cell monomers on a workbench located at a stacking station so that the plurality of fuel cell monomers are stacked between an upper end plate and a lower end plate; transporting the stacked fuel cell monomers from the stacking station to a bundling station; and The plurality of fuel cell units located on the workbench of the bundling station are bundled to assemble a fuel cell stack.

17. The method for assembling a fuel cell stack according to claim 16, wherein: The step of bundling the plurality of fuel cell monomers on the workbench of the bundling station to assemble a fuel cell stack comprises the following steps: applying pressure to the plurality of fuel cell monomers on the workbench of the bundling station to compact the plurality of fuel cell monomers; and The compressed fuel cell monomers are bundled so that the fuel cell monomers are bound between the upper end plate and the lower end plate to form the fuel cell stack.

18. The method for assembling a fuel cell stack according to claim 17, wherein: The step of bundling the compressed plurality of fuel cell monomers so that the plurality of fuel cell monomers are bound between the upper end plate and the lower end plate to assemble the fuel cell stack comprises the following steps: wrapping the compressed plurality of fuel cell units with a bundling member; welding the extended body of the strapping element to the first end of the strapping element; and The extended body of the tying element is cut so that the cutout on the extended body of the tying element serves as a new first end of the tying element.

19. The method for assembling a fuel cell stack according to claim 18, wherein: The step of wrapping the compressed plurality of fuel cell monomers with a bundling element comprises the steps of: pulling the first end of the strapping element wound on the reel of the turntable assembly to rotate the reel in a forward direction to release the extended body of the strapping element; Passing the first end of the bundling element through the lower end plate and the upper end plate in sequence, so that the extended body of the bundling element surrounds the compressed fuel cell monomers; biasing the extended body of the strapping element to abut against the first end of the strapping element; as well as The reel of the turntable assembly is driven to rotate in reverse to tighten the extended body of the bundling element to wind the compressed fuel cell monomers.

Images