CN113991158A - Fuel cell stack assembly method and assembly system - Google Patents
Fuel cell stack assembly method and assembly system Download PDFInfo
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- CN113991158A CN113991158A CN202111230058.1A CN202111230058A CN113991158A CN 113991158 A CN113991158 A CN 113991158A CN 202111230058 A CN202111230058 A CN 202111230058A CN 113991158 A CN113991158 A CN 113991158A
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- cell stack
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- 239000000446 fuel Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000012528 membrane Substances 0.000 claims abstract description 37
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 35
- 238000003825 pressing Methods 0.000 claims description 29
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2404—Processes or apparatus for grouping fuel cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/248—Means for compression of the fuel cell stacks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to the technical field of fuel cell assembly, in particular to a fuel cell stack assembly method and a fuel cell stack assembly system. A fuel cell stack assembly method comprising the steps of: alternately stacking a plurality of membrane electrodes and a plurality of bipolar plates in sequence to assemble a second electric pile unit; sequentially stacking and assembling a first insulation plate, a first collector plate, a first unipolar plate and a second electric pile unit to form a first electric pile unit; sequentially stacking the second electric pile unit, the second unipolar plate, the second current collecting plate and the second insulating plate to assemble a third electric pile unit; and sequentially assembling and fastening the first end plate, the first electric pile unit, the plurality of second electric pile units, the third electric pile unit and the second end plate to form the fuel cell electric pile. The invention provides the fuel cell stack assembly method and the assembly system which have higher production efficiency and better product consistency and precision.
Description
Technical Field
The invention relates to the technical field of fuel cell assembly, in particular to a fuel cell stack assembly method and a fuel cell stack assembly system.
Background
In the current situation of rapid economic development, energy utilization relates to the aspects of social life. At present, energy utilization mainly depends on petrochemical energy, including petroleum, natural gas and coal, but the pollution degree of pollutants generated after the combustion of the petrochemical energy to the environment is increasingly serious, and the petrochemical energy is non-renewable energy, and the storage amount of the petrochemical energy is worried along with the long-term large-scale use. Therefore, it is urgent to find clean energy to replace petrochemical energy. The fuel cell is used as a new energy source, is clean in use and high in utilization efficiency, and is an ideal clean novel energy source application mode with zero emission and no pollution.
The fuel cell stack is formed by stacking a plurality of fuel cells in series. The bipolar plates and the Membrane Electrode (MEA) are overlapped alternately, sealing elements are embedded between the monomers, and the monomers are tightly pressed by the front end plate and the rear end plate and then fastened and fastened by a screw rod, so that the fuel cell stack is formed.
In the process of assembling the fuel cell stack, especially the stack with a large number of layers, in order to facilitate the assembly of the fuel cell stack and ensure the performance of the assembled and molded fuel cell stack, the components of the fuel cell stack need to be pre-assembled before the fuel cell stack is assembled. At present, various pre-assembly processes are mostly that end plate assemblies and bolt assemblies are simply pre-assembled firstly, then all parts are stacked and assembled layer by using a common method, and finally the bolts are stacked and locked, wherein most actions are finished manually.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the production efficiency of the fuel cell stack assembly in the prior art is low and the consistency and the precision of the product cannot be ensured, so that the fuel cell stack assembly method and the assembly system which have high production efficiency and good consistency and precision of the product are provided.
In order to solve the technical problem, the invention provides a fuel cell stack assembly method, which comprises the following steps:
alternately stacking a plurality of membrane electrodes and a plurality of bipolar plates in sequence to assemble a second electric pile unit;
sequentially stacking and assembling a first insulation plate, a first collector plate, a first unipolar plate and a second electric pile unit to form a first electric pile unit;
sequentially stacking the second electric pile unit, the second unipolar plate, the second current collecting plate and the second insulating plate to assemble a third electric pile unit;
and sequentially assembling and fastening the first end plate, the first electric pile unit, the plurality of second electric pile units, the third electric pile unit and the second end plate to form the fuel cell electric pile.
Optionally, the method further comprises the step of assembling the membrane electrode and the bipolar plate after positioning the membrane electrode and the bipolar plate respectively.
Optionally, the membrane electrode is positioned at a first positioning point, and the bipolar plate is positioned at a second positioning point.
Optionally, the first insulating plate, the first unipolar plate, the second insulating plate, and the second electrode plate are all positioned at the first positioning point; and the first current collecting plate and the second current collecting plate are positioned at the second positioning point.
Optionally, the method further comprises the step of compressing the assembled first end plate, first stack unit, plurality of second stack units, third stack unit and second end plate.
Optionally, the method further comprises the step of performing air tightness detection on the compressed first end plate, the first stack unit, the plurality of second stack units, the third stack unit and the second end plate.
Optionally, the total number of membrane electrodes and bipolar plates in the second stack unit is 20-30 sheets.
There is also provided a fuel cell stack assembly system comprising:
the first robot and the second robot are respectively arranged on two sides of the pre-stacking assembly station, the first robot is used for grabbing a first insulating plate, a first unipolar plate, a second insulating plate, a second unipolar plate and a membrane electrode, and the second robot is used for grabbing a first current collecting plate, a second current collecting plate and a bipolar plate;
a plurality of membrane electrodes and a plurality of bipolar plates are alternately stacked in sequence to assemble a second electric pile unit; the first insulation plate, the first collector plate, the first unipolar plate and the second stack unit are sequentially stacked to assemble a first stack unit; the second electric pile unit, the second unipolar plate, the second current collecting plate and the second insulating plate are sequentially stacked to assemble a third electric pile unit;
and the third robot is arranged on one side of the press-fitting galvanic pile station and used for grabbing the first end plate, the first galvanic pile unit, the plurality of second galvanic pile units, the third galvanic pile unit and the second end plate.
Optionally, the stacking device further comprises a first positioning mechanism and a second positioning mechanism which are arranged on two sides of the pre-stacking assembly station, the first positioning mechanism and the second positioning mechanism respectively comprise a positioning plate and a plurality of positioning rods arranged on the positioning plate, and a positioning space is defined by the positioning rods.
Optionally, first robot, second robot and third robot all are equipped with the manipulator, the manipulator includes body, spacing clamping jaw and flexible mechanism, flexible mechanism includes the floating axle and the base of establishing by interior to outer cover in proper order, floating axle with be equipped with the floating space that allows floating axle to radially remove between the base, floating axle simultaneously with the body of manipulator with spacing clamping jaw connects.
Optionally, the base is provided with a plurality of guide shafts and guide sleeves which are sleeved with each other along a radial direction, one end of each guide shaft, which is close to the floating shaft, is sleeved with a first elastic piece, and the first elastic piece is abutted to the floating shaft.
Optionally, a plurality of sliders are further provided between the floating shaft and the base in the circumferential direction, and the sliders are provided with a plurality of guide holes allowing the guide shaft to be inserted in the radial direction.
Optionally, a pre-pressing mechanism is further connected to the limiting clamping jaw in a sliding manner, and the pre-pressing mechanism reciprocates along the extending direction of the limiting clamping jaw to apply pre-pressing force to the fuel cell stack.
Optionally, the pre-pressing mechanism includes a first pressing plate, a second elastic member and a driving member, wherein the first pressing plate and the second pressing plate are arranged oppositely, and the second elastic member is arranged between the first pressing plate and the second pressing plate, and the driving member is connected with the first pressing plate.
The technical scheme of the invention has the following advantages:
1. the invention provides a fuel cell stack assembly method, which comprises the steps of firstly, alternately stacking a plurality of membrane electrodes and a plurality of bipolar plates in sequence to assemble a second stack unit; then the first insulation plate, the first current collecting plate, the first unipolar plate and the second electric pile unit are sequentially stacked to assemble a first electric pile unit; sequentially stacking the second electric pile unit, the second unipolar plate, the second current collecting plate and the second insulating plate to assemble a third electric pile unit; and finally, sequentially assembling and fastening the first end plate, the first electric pile unit, the plurality of second electric pile units, the third electric pile unit and the second end plate to form the fuel cell electric pile. According to the assembling method, the battery electric pile is modularly assembled in advance, and then the module units are assembled, so that the production efficiency is improved, and the uniformity and the precision of the product are ensured by adopting uniform standard for assembling.
2. The fuel cell stack assembly method provided by the invention has the advantages that the membrane electrode and the bipolar plate are respectively positioned and then assembled, the stacking consistency is further improved, and the product quality is ensured.
3. According to the fuel cell stack assembly method provided by the invention, the membrane electrode and the bipolar plate are positioned at different positioning points simultaneously, so that synchronous operation is realized, and the production efficiency is further improved.
4. According to the fuel cell pile assembly system provided by the invention, the first robot and the second robot work simultaneously, and the third robot carries out final assembly on each pile unit, so that automation and standardization operation are realized, the production efficiency is improved, and the product quality is ensured.
5. According to the fuel cell stack assembly system provided by the invention, due to the arrangement of the flexible mechanism in the manipulator, even if a certain position error exists in each stack unit during stacking assembly, self-adaptive adjustment can be realized through the movement of the floating shaft in the floating space, and the consistency of stacking assembly is ensured.
6. According to the fuel cell stack assembly system provided by the invention, the pre-pressing mechanism is arranged, so that a relatively stable pressing force can be applied to the stack at any time in the assembly process, and meanwhile, the second elastic piece is arranged, so that the stack is prevented from being damaged due to the overlarge pressing force.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a first positioning mechanism in a fuel cell stack assembly system according to the present invention;
FIG. 2 is a schematic diagram of a robot in a fuel cell stack assembly system according to the present invention;
FIG. 3 is another schematic angle view of FIG. 2;
FIG. 4 is a schematic view of the compliant mechanism of FIG. 2;
fig. 5 is a schematic view of an assembled fuel cell stack.
Description of reference numerals:
1. positioning a plate; 2. positioning a rod; 3. a limiting clamping jaw; 4. a pre-pressing mechanism; 5. a flexible mechanism; 6. a floating shaft; 7. a slider; 8. a base; 9. a guide shaft; 10. a guide sleeve; 11. a first elastic member; 12. a first stack unit; 13. a second stack unit; 14. a third stack unit; 15. a first end plate; 16. a second end plate; 17. a bolt assembly; 18. a placement space; 19. a first platen; 20. a second platen; 21. a second elastic member; 22. a drive member; 23. l-shaped connecting plates.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
An embodiment of a method for assembling a fuel cell stack, for example, an automated assembly of a hydrogen fuel cell stack, includes the steps of:
a first four-axis robot grabs a first insulating plate to a first CCD positioning point for positioning and then sends the first insulating plate to a first pre-stacking assembly station, a second four-axis robot grabs a first current collecting plate to a second CCD positioning point for positioning and then sends the first current collecting plate to the upper part of the first insulating plate of the first pre-stacking assembly station, and a first four-axis robot grabs a first unipolar plate to the first CCD positioning point for positioning and then sends the first unipolar plate to the upper part of the first current collecting plate of the first pre-stacking assembly station; then the first four-axis robot grabs the membrane electrode to the first CCD locating point for locating, and then sends the membrane electrode to the first single-pole plate of the first pre-stacking assembly station, the second four-axis robot grabs the bipolar plate to the second CCD locating point for locating, and then sends the bipolar plate to the membrane electrode of the first pre-stacking assembly station, finally the first four-axis robot and the second four-axis robot circularly grabs the membrane electrode and the bipolar plate and sends the membrane electrode and the bipolar plate to the first pre-stacking assembly station until the total stacking number of the membrane electrode and the bipolar plate is 20-30, and the stacking assembly of the first cell 12 is completed.
The first four-axis robot grabs the membrane electrode to the first CCD positioning point for positioning and then sends the membrane electrode to the second pre-stacking assembly station, the second four-axis robot grabs the bipolar plate to the second CCD positioning point for positioning and then sends the bipolar plate to the upper part of the membrane electrode of the second pre-stacking assembly station, the alternating stacking action is repeated until the total stacking number of the membrane electrode and the bipolar plate is 20-30, and the second electric pile unit 13 is assembled. The second stack units 13 are stacked and assembled in plurality as required.
The first four-axis robot grabs the membrane electrode to the first CCD positioning point for positioning and then sends the membrane electrode to the third pre-stacking assembly station, the second four-axis robot grabs the bipolar plate to the second CCD positioning point for positioning and then sends the bipolar plate to the position above the membrane electrode of the third pre-stacking assembly station, and the first four-axis robot and the second four-axis robot circularly grab the membrane electrode and the bipolar plate and send the membrane electrode and the bipolar plate to the third pre-stacking assembly station until the total stacking number of the membrane electrode and the bipolar plate is 20-30; then the first four-axis robot grabs the second unipolar plate to the first CCD locating point for positioning, and then sends the second unipolar plate to the third pre-stacking assembly station, the second four-axis robot grabs the second current collecting plate to the second CCD locating point for positioning, and then sends the second unipolar plate to the third pre-stacking assembly station, the first four-axis robot grabs the second insulating plate to the first CCD locating point for positioning, and then sends the second insulating plate to the third pre-stacking assembly station to the second current collecting plate for positioning, and then the third electric pile unit 14 is stacked and assembled.
And finally, the six-axis robot sequentially grabs the first end plate 15, the first electric pile unit 12, the plurality of second electric pile units 13, the plurality of third electric pile units 14 and the second end plate 16 to a press-mounting electric pile station for assembly, the electric piles are pressed by a pile pressing machine, after the airtightness is detected, the six-axis robot grabs the bolt assembly 17 to lock the electric piles, and the assembly of the fuel cell electric pile is completed, as shown in fig. 5.
As an alternative embodiment, after the membrane electrodes and the bipolar plates are completely assembled, the first insulating plate, the first current collecting plate, the first unipolar plate, the second current collecting plate and the second insulating plate are respectively assembled on the two groups of assembled membrane electrodes and bipolar plates, so as to complete the assembly of the stack units at the two ends of the stack main body.
As an alternative embodiment, the anchor points may be one and the same.
An embodiment of a fuel cell stack assembly system, as shown in fig. 1-4, includes: the device comprises a plurality of pre-stacking assembly stations, a press-fitting galvanic pile station, a first robot, a second robot and a third robot, wherein the first robot and the second robot are respectively arranged on two sides of the pre-stacking assembly stations, and the third robot is arranged on one side of the press-fitting galvanic pile station. The first robot and the second robot are four-axis robots, and the third robot is a six-axis robot.
The first robot is used for grabbing a first insulating plate, a first unipolar plate, a second insulating plate, a second unipolar plate and a membrane electrode, and the second robot is used for grabbing a first current collecting plate, a second current collecting plate and a bipolar plate; the third robot is used to grasp the first end plate 15, the first stack unit 12, the plurality of second stack units 13, the third stack unit 14, and the second end plate 16.
The two sides of the pre-stacking assembly station are respectively provided with a first positioning mechanism and a second positioning mechanism, as shown in fig. 1, each of the first positioning mechanism and the second positioning mechanism comprises a positioning plate 1 and a plurality of positioning rods 2 arranged on the positioning plate 1, and the positioning rods 2 enclose a placing space 18 of a galvanic pile unit. Because the edge of each plate body of pile unit all the shaping has the through-hole, consequently when placing the plate body on locating plate 1, locating lever 2 directly runs through the through-hole, realizes the location to the plate body. Further, the aperture of through-hole slightly is greater than the diameter of locating lever 2 to realize a plurality of plate bodies in the self-adaptation adjustment of piling up the in-process, guarantee to pile up neatly.
The first robot, the second robot and the third robot are all provided with manipulators, as shown in fig. 2 to 4, each manipulator comprises a limiting clamping jaw 3, a prepressing mechanism 4, a flexible mechanism 5 and a body which are sequentially arranged from bottom to top, and each limiting clamping jaw 3 comprises a pair which are oppositely arranged and used for clamping a piece to be clamped; the prepressing mechanism 4 is arranged at one end of the limiting clamping jaw 3 close to the flexible mechanism 5 and is used for applying prepressing force to the piece to be clamped. The opposite side walls of the pair of limiting clamping jaws 3 are provided with sliding rails, and the pre-pressing mechanism 4 comprises a first pressing plate 19, a second pressing plate 20, a second elastic part 21 and a driving part 22, wherein the first pressing plate 19 and the second pressing plate 20 are arranged oppositely, the second elastic part 21 is arranged between the first pressing plate 19 and the second pressing plate 20, and the driving part 22 is connected with the first pressing plate 19. The second pressing plate 20 is provided with an L-shaped connecting plate 23, one side of the L-shaped connecting plate 23 is provided with a sliding groove matched with the sliding rail, and the other side of the L-shaped connecting plate 23 is connected with one end of the second elastic member 21. The driving member 22 is a cylinder, and the cylinder is connected with the flexible mechanism 5 through a mounting plate. The cylinder drives the L-shaped connecting plate 23 to reciprocate along the extending direction of the limiting clamping jaw 3 through the first pressing plate 19 and the second elastic piece 21 so as to apply pre-pressure to the fuel cell stack, and the second elastic piece 21 is a spring and plays a role in buffering to prevent the stack from being damaged suddenly or greatly due to application of force.
The flexible mechanism 5 comprises a floating shaft 6, a floating block 7 and a base 8 which are sequentially sleeved from inside to outside, a floating space allowing the floating block 7 to move in the radial direction is arranged between the floating shaft 6 and the base 8, and the floating shaft 6 is connected with the body of the manipulator and the limiting clamping jaw 3. The base 8 is provided with a plurality of through holes along the radial direction, the guide shaft 9 and the guide sleeve 10 which are sleeved with each other penetrate through the through holes, the floating block 7 is provided with a plurality of guide holes allowing the guide shaft 9 to be inserted along the radial direction, the floating block 7 and the guide shaft 9 are fixed relatively, and a radial movement space of the guide shaft 9 is reserved in the guide holes. In order to facilitate the resetting of the floating shaft 6, one end of the guide shaft 9, which is close to the floating block 7, is sleeved with a spring serving as a first elastic part 11 so as to apply an acting force for pressing or separating the floating block 7 from the floating shaft 6 under the action of the elastic force, thereby realizing the self-adaptive deviation positioning of the limiting clamping jaw 3 and ensuring the assembly consistency of each pile unit.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (12)
1. A method of assembling a fuel cell stack, comprising the steps of:
alternately stacking a plurality of membrane electrodes and a plurality of bipolar plates in sequence to assemble a second electric pile unit;
sequentially stacking and assembling a first insulation plate, a first collector plate, a first unipolar plate and a second electric pile unit to form a first electric pile unit;
sequentially stacking the second electric pile unit, the second unipolar plate, the second current collecting plate and the second insulating plate to assemble a third electric pile unit;
and sequentially assembling and fastening the first end plate, the first electric pile unit, the plurality of second electric pile units, the third electric pile unit and the second end plate to form the fuel cell electric pile.
2. The fuel cell stack assembly method of claim 1, further comprising the step of positioning and then assembling the membrane electrode and the bipolar plate, respectively.
3. The fuel cell stack assembly method of claim 2, wherein the membrane electrode is positioned at a first location and the bipolar plate is positioned at a second location.
4. The fuel cell stack assembly method of claim 3, wherein the first insulating plate, the first unipolar plate, the second insulating plate, and the second electrode plate are all positioned at the first positioning point; and the first current collecting plate and the second current collecting plate are positioned at the second positioning point.
5. The fuel cell stack assembly method according to any one of claims 1 to 4, further comprising the steps of compressing and detecting the gas tightness of the assembled first end plate, first stack unit, plurality of second stack units, third stack unit, and second end plate.
6. A fuel cell stack assembly system, comprising:
the robot comprises a first robot and a second robot which are respectively arranged on two sides of a pre-stacking assembly station, wherein the first robot is used for grabbing a first insulation plate, a first unipolar plate, a second insulation plate, a second unipolar plate and a membrane electrode, and the membrane electrode is arranged on the first unipolar plate and the second unipolar plate
The second robot is used for grabbing the first current collecting plate, the second current collecting plate and the bipolar plate;
a plurality of membrane electrodes and a plurality of bipolar plates are alternately stacked in sequence to assemble a second electric pile unit; the first insulation plate, the first collector plate, the first unipolar plate and the second stack unit are sequentially stacked to assemble a first stack unit; the second electric pile unit, the second unipolar plate, the second current collecting plate and the second insulating plate are sequentially stacked to assemble a third electric pile unit;
and the third robot is arranged on one side of the press-fitting galvanic pile station and used for grabbing the first end plate, the first galvanic pile unit, the plurality of second galvanic pile units, the third galvanic pile unit and the second end plate.
7. The fuel cell stack assembly system of claim 6, further comprising a first positioning mechanism and a second positioning mechanism disposed on two sides of the pre-stack assembly station, wherein each of the first positioning mechanism and the second positioning mechanism comprises a positioning plate and a plurality of positioning rods disposed on the positioning plate, and the positioning rods surround a placement space.
8. The fuel cell stack assembly system according to claim 6 or 7, wherein the first robot, the second robot and the third robot are each provided with a manipulator, the manipulator includes a body, a limiting clamping jaw and a flexible mechanism, the flexible mechanism includes a floating shaft and a base, the floating shaft and the base are sequentially sleeved from inside to outside, a floating space allowing the floating shaft to move in a radial direction is provided between the floating shaft and the base, and the floating shaft is simultaneously connected with the body of the manipulator and the limiting clamping jaw.
9. The fuel cell stack assembly system according to claim 8, wherein the base is provided with a plurality of guide shafts and guide sleeves which are sleeved with each other in a radial direction, one end of each guide shaft, which is close to the floating shaft, is sleeved with a first elastic member, and the first elastic member abuts against the floating shaft.
10. The fuel cell stack assembly system according to claim 9, wherein a plurality of sliders are further provided circumferentially between the floating shaft and the base, the sliders being provided radially with a plurality of guide holes that allow insertion of the guide shafts.
11. The fuel cell stack assembly system according to any one of claims 8 to 10, wherein a pre-pressing mechanism is further slidably connected to the limiting jaw, and the pre-pressing mechanism reciprocates along an extending direction of the limiting jaw to apply pre-pressing force to the fuel cell stack.
12. The fuel cell stack assembly system of claim 11, wherein the pre-press mechanism comprises a first press plate, a second elastic member and a driving member, wherein the first press plate and the second press plate are oppositely arranged, the second elastic member is arranged between the first press plate and the second press plate, and the driving member is connected with the first press plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111230058.1A CN113991158B (en) | 2021-10-21 | 2021-10-21 | Fuel cell stack assembling method and assembling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111230058.1A CN113991158B (en) | 2021-10-21 | 2021-10-21 | Fuel cell stack assembling method and assembling system |
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| CN113991158A true CN113991158A (en) | 2022-01-28 |
| CN113991158B CN113991158B (en) | 2023-12-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114583229A (en) * | 2022-03-03 | 2022-06-03 | 武汉氢能与燃料电池产业技术研究院有限公司 | Positioning device for fuel cell stack assembly and use method thereof |
| CN114976173A (en) * | 2022-05-30 | 2022-08-30 | 大连锐格新能源科技有限公司 | Stack assembly subsystem for continuous membrane electrode and use method thereof |
| CN115632154A (en) * | 2022-12-23 | 2023-01-20 | 天津中科先进技术产业有限公司 | Fuel cell stack and fuel cell stack fixing method |
| CN116231015A (en) * | 2022-11-08 | 2023-06-06 | 惠州市联赢科技有限公司 | Equipment for manufacturing fuel cell and fuel cell processing method |
| CN114976173B (en) * | 2022-05-30 | 2024-05-17 | 大连锐格新能源科技有限公司 | Pile assembly subsystem for continuous membrane electrode and use method thereof |
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| CN112993368A (en) * | 2021-03-19 | 2021-06-18 | 国家电投集团氢能科技发展有限公司 | Fuel cell stack |
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| CN210272558U (en) * | 2019-09-20 | 2020-04-07 | 河北清清电池有限公司 | Automatic assembling production line for fuel cell stack |
| CN211045605U (en) * | 2019-12-09 | 2020-07-17 | 一汽解放汽车有限公司 | Horizontal assembly device for fuel cell stack |
| CN112531194A (en) * | 2019-12-31 | 2021-03-19 | 北京华胜信安电子科技发展有限公司 | Fuel cell stack assembly system |
| CN212625686U (en) * | 2020-08-10 | 2021-02-26 | 珠海格力电器股份有限公司 | Cell stack structure and fuel cell with same |
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| CN114583229A (en) * | 2022-03-03 | 2022-06-03 | 武汉氢能与燃料电池产业技术研究院有限公司 | Positioning device for fuel cell stack assembly and use method thereof |
| CN114976173A (en) * | 2022-05-30 | 2022-08-30 | 大连锐格新能源科技有限公司 | Stack assembly subsystem for continuous membrane electrode and use method thereof |
| CN114976173B (en) * | 2022-05-30 | 2024-05-17 | 大连锐格新能源科技有限公司 | Pile assembly subsystem for continuous membrane electrode and use method thereof |
| CN116231015A (en) * | 2022-11-08 | 2023-06-06 | 惠州市联赢科技有限公司 | Equipment for manufacturing fuel cell and fuel cell processing method |
| CN116231015B (en) * | 2022-11-08 | 2023-12-19 | 惠州市联赢科技有限公司 | Equipment for manufacturing fuel cell and fuel cell processing method |
| CN115632154A (en) * | 2022-12-23 | 2023-01-20 | 天津中科先进技术产业有限公司 | Fuel cell stack and fuel cell stack fixing method |
| CN115632154B (en) * | 2022-12-23 | 2023-03-03 | 天津中科先进技术产业有限公司 | Fuel cell stack and fuel cell stack fixing method |
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