CN114583229A - Positioning device for fuel cell stack assembly and use method thereof - Google Patents
Positioning device for fuel cell stack assembly and use method thereof Download PDFInfo
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- CN114583229A CN114583229A CN202210209733.0A CN202210209733A CN114583229A CN 114583229 A CN114583229 A CN 114583229A CN 202210209733 A CN202210209733 A CN 202210209733A CN 114583229 A CN114583229 A CN 114583229A
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- 239000000446 fuel Substances 0.000 title claims abstract description 127
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000011084 recovery Methods 0.000 claims description 42
- 239000012528 membrane Substances 0.000 description 15
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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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- 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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Abstract
The invention relates to a positioning device for assembling a fuel cell stack and a using method thereof. According to the positioning device for assembling the fuel cell stack, when the fuel cell stacks with different sizes and specifications are positioned, the distance between the first positioning unit and the second positioning unit is convenient to adjust, the distance adjusting range between the first positioning unit and the second positioning unit is not only a certain number, the distance between the first positioning unit and the second positioning unit can be adjusted randomly within a continuous numerical range, and the universality is strong; the distance between the first positioning unit and the second positioning unit is adjusted to be a primary adjustment value, fine adjustment can be performed, practical application is facilitated, pretightening force can be provided through the first positioning unit and the second positioning unit, and assembly accuracy of the fuel cell stack is improved.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a positioning device for assembling a fuel cell stack and a using method thereof.
Background
The fuel cell is a device for generating electricity by directly utilizing hydrogen energy, the chemical energy of hydrogen and oxygen is directly converted into electric energy, and the energy conversion rate is high because Carnot cycle is carried out; fuel cells are environmentally friendly, the only emission being water. Therefore, fuel cell technology is considered to be the first choice in the 21 st century as clean and efficient power generation technology. The fuel cell stack is composed of a plurality of monocells, a positioning device is needed when the fuel cell stack is assembled, the positioning device ensures that all parts of the fuel cell stack do not have dislocation and deviation when the fuel cell stack is assembled, if the positioning fails, the stress of the fuel cell stack is uneven, and the sealing is influenced and even the membrane electrode assembly and the bipolar plate are damaged.
The patent CN113363527A discloses a positioning piece for fuel cell assembly, a fuel cell and a fuel cell, and the positioning piece for fuel cell assembly of the present invention is convenient for installation and disassembly, and improves the assembly precision between fuel cell plates, thereby improving the assembly precision of the whole cell stack body and ensuring the operation performance of the stack. A fuel cell assembly spacer, a fuel cell and a fuel cell, comprising: the connecting part is suitable for being detachably connected with the fuel cell, a first end and a second end are oppositely arranged on the connecting part in the height direction of the connecting part, a first annular bulge and a second annular bulge are arranged on the periphery of the connecting part and are arranged at intervals in the height direction of the connecting part, and installation grooves are defined by the first annular bulge, the second annular bulge and the outer wall surface of the connecting part and are suitable for being connected with the fuel cell; the positioning part is provided with a first end and a second end in the height direction, and the second end of the positioning part is in contact with the first end of the connecting part.
The existing fuel cell pile assembly positioning device has the following defects: 1. when fuel cell stacks with different sizes and specifications are positioned, the distance between the positioning pieces is inconvenient to adjust, the distance adjusting range between the positioning pieces is a certain number, the distance between the positioning pieces cannot be adjusted randomly within a continuous number range, and the universality is poor; 2. the distance between the positioning pieces is a determined value after adjustment, fine adjustment cannot be carried out, practical application is inconvenient, pretightening force cannot be provided through the positioning pieces, and the assembly precision of the fuel cell stack is reduced.
Disclosure of Invention
Aiming at the condition of the prior art, the invention provides a positioning device for assembling fuel cell stacks and a use method thereof, when positioning the fuel cell stacks with different sizes and specifications, the distance between a first positioning unit and a second positioning unit is convenient to adjust, the distance adjusting range between the first positioning unit and the second positioning unit is not only a certain number, the distance between the first positioning unit and the second positioning unit can be adjusted randomly within a continuous number range, and the universality is strong; the distance between the first positioning unit and the second positioning unit is adjusted to be an initial adjustment value, fine adjustment can be performed, practical application is facilitated, pre-tightening force can be provided through the first positioning unit and the second positioning unit, components of the fuel cell stack can be matched and attached well, and assembly accuracy of the fuel cell stack is improved.
The invention is realized by the following technical scheme:
the invention provides a positioning device for assembling a fuel cell stack, which comprises a supporting unit, a first positioning unit and a second positioning unit, wherein the first positioning unit and the second positioning unit are arranged on the supporting unit at intervals.
The first positioning unit is movably connected with the supporting unit through a first recovery unit, and the first recovery unit can adjust the distance between the first positioning unit and the second positioning unit so that the first positioning unit and the second positioning unit can be correspondingly matched with two positioning holes of the fuel cell stack one by one.
Furthermore, a first sliding groove is formed in the top surface of the supporting unit, part of the structure of the first positioning unit is arranged in the first sliding groove to enable the first positioning unit to be in sliding connection with the supporting unit, the first recovery unit is arranged in the first sliding groove, and two ends of the first recovery unit are respectively in one-to-one correspondence and fixed connection with the first positioning unit and the supporting unit.
Further, the first restoring unit comprises a first restoring piece and a second restoring piece, the first restoring piece is located in the first sliding groove on one side of the first positioning unit and is fixedly connected with the first positioning unit and the supporting unit in a one-to-one correspondence manner, and the second restoring piece is located in the first sliding groove on the other side of the first positioning unit and is fixedly connected with the first positioning unit and the supporting unit in a one-to-one correspondence manner.
Furthermore, the first positioning unit comprises a first sliding block and a first positioning rod, the first sliding block is connected with the supporting unit in a sliding mode through the first sliding groove, the first positioning rod is arranged on the first sliding block and used for being matched with a positioning hole of a fuel cell stack, the first restoring piece is located in the first sliding groove on one side of the first sliding block and fixedly connected with the first sliding block and the supporting unit in a one-to-one correspondence mode, and the second restoring piece is located in the first sliding groove on the other side of the first sliding block and fixedly connected with the first sliding block and the supporting unit in a one-to-one correspondence mode.
Further, the first positioning unit further comprises a first locking member, the first locking member is disposed on the first sliding block, and the first locking member is used for locking the first sliding block with the supporting unit.
Furthermore, the second positioning unit is movably connected with the supporting unit through a second recovery unit, and the first recovery unit and the second recovery unit are used for cooperatively adjusting the distance between the first positioning unit and the second positioning unit so that the first positioning unit and the second positioning unit are correspondingly matched with the two positioning holes of the fuel cell stack one by one.
Furthermore, a second sliding groove is formed in the top surface of the supporting unit, a partial structure of the second positioning unit is arranged in the second sliding groove to enable the second positioning unit to be slidably connected with the supporting unit, the second recovery unit is arranged in the second sliding groove, and two ends of the second recovery unit are fixedly connected with the first positioning unit and the supporting unit in a one-to-one correspondence manner.
Furthermore, the second recovery unit comprises a third recovery piece and a fourth recovery piece, the third recovery piece is located in the second sliding groove on one side of the second positioning unit and is respectively fixedly connected with the second positioning unit and the supporting unit in a one-to-one correspondence manner, and the fourth recovery piece is located in the second sliding groove on the other side of the second positioning unit and is respectively fixedly connected with the second positioning unit and the supporting unit in a one-to-one correspondence manner.
Furthermore, the second positioning unit comprises a second sliding block, a second positioning rod and a second locking piece, the second sliding block is connected with the supporting unit in a sliding mode through a second sliding groove, the second positioning rod is arranged on the second sliding block and used for being matched with a positioning hole of the fuel cell stack, the second locking piece is arranged on the second sliding block and used for locking the second sliding block with the supporting unit, a third restoring piece is arranged in the second sliding groove on one side of the second sliding block and respectively fixedly connected with the second sliding block and the supporting unit in a one-to-one correspondence mode, and a fourth restoring piece is arranged on the other side of the second sliding block and respectively fixedly connected with the second sliding block and the supporting unit in a one-to-one correspondence mode.
The use method of the positioning device for assembling any fuel cell stack comprises the following steps:
s1: adjusting a distance between the first positioning unit and a second positioning unit;
s2: the first positioning unit and the second positioning unit are matched with the two positioning holes of the fuel cell stack in a one-to-one correspondence manner.
Compared with the prior art, the invention has the following advantages and beneficial effects:
in the using process of the positioning device for assembling the fuel cell stack, the distance between the first positioning unit and the second positioning unit is firstly adjusted, and then the first positioning unit and the second positioning unit are correspondingly matched with two positioning holes of the fuel cell stack one by one, namely, components (an end plate, a bipolar plate, a current collecting plate, a membrane electrode and the like) of the fuel cell stack are sequentially overlapped together along the first positioning unit and the second positioning unit; according to the positioning device for assembling the fuel cell stack, when the fuel cell stacks with different sizes and specifications are positioned, the distance between the first positioning unit and the second positioning unit is convenient to adjust, the distance adjusting range between the first positioning unit and the second positioning unit is not only a certain number, the distance between the first positioning unit and the second positioning unit can be adjusted randomly within a continuous numerical range, and the universality is strong; the distance between the first positioning unit and the second positioning unit is adjusted to be a primary adjustment value, fine adjustment can be carried out, practical application is facilitated, and the pretightening force can be provided through the first positioning unit and the second positioning unit, so that each component of the fuel cell stack can be better matched and attached tightly, and the assembly precision of the fuel cell stack is improved.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of a positioning device for assembling a fuel cell stack according to the present invention;
fig. 2 is a schematic top view of a positioning device for assembling a fuel cell stack according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a positioning device for assembling a fuel cell stack according to an embodiment of the present invention in a state where the positioning device positions components of the fuel cell stack.
Reference numerals: 1. a support unit; 11. a first sliding groove; 12. a second sliding groove; 2. a first positioning unit; 21. a first slider; 22. a first positioning rod; 23. a first locking member; 3. a second positioning unit; 31. a second slider; 32. a second positioning rod; 33. a second locking member; 4. a first recovery unit; 41. a first recovery element; 42. a second recovery member; 5. a second replying unit; 51. a third recovery piece; 52. a fourth repeat; 6. and (7) positioning the holes.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which are used to illustrate, but not to limit the invention.
Example 1:
as shown in fig. 1 to 3, a positioning device for assembling a fuel cell stack includes a support unit 1, a first positioning unit 2, and a second positioning unit 3, wherein the first positioning unit 2 and the second positioning unit 3 are disposed on the support unit 1 at intervals.
The first positioning unit 2 is movably connected with the supporting unit 1 through a first recovery unit 4, and the first recovery unit 4 can adjust the distance between the first positioning unit 2 and the second positioning unit 3 so that the first positioning unit 2 and the second positioning unit 3 can be correspondingly matched with two positioning holes 6 of the fuel cell stack one by one.
In the using process of the positioning device for assembling the fuel cell stack, the distance between the first positioning unit 2 and the second positioning unit 3 is firstly adjusted, and then the first positioning unit 2 and the second positioning unit 3 are correspondingly matched with the two positioning holes 6 of the fuel cell stack one by one, namely, all components (an end plate, a bipolar plate, a current collecting plate, a membrane electrode and the like) of the fuel cell stack are sequentially overlapped together along the first positioning unit 2 and the second positioning unit 3; according to the positioning device for assembling the fuel cell stack, when the fuel cell stacks with different sizes and specifications are positioned, the distance between the first positioning unit 2 and the second positioning unit 3 is convenient to adjust, the distance adjusting range between the first positioning unit 2 and the second positioning unit 3 is not only a certain number, the distance between the first positioning unit 2 and the second positioning unit 3 can be adjusted randomly within a continuous number range, and the universality is high; the distance between the first positioning unit 2 and the second positioning unit 3 is adjusted to be a primary adjustment value, fine adjustment can be carried out again, practical application is facilitated, and the pretightening force can be provided through the first positioning unit 2 and the second positioning unit 3, so that each component of the fuel cell stack can be better matched and attached tightly, and the assembly precision of the fuel cell stack is improved.
In the description of the present invention, the distance between the positioning members refers to the distance between the first positioning unit 2 and the second positioning unit 3.
The second positioning unit 3 is fixedly or movably connected to the support unit 1, the second positioning unit 3 is fixedly connected to the support unit 1 in embodiment 1, and the second positioning unit 3 is movably connected to the support unit 1 in embodiment 2.
In a preferred embodiment, components (end plates, bipolar plates, current collecting plates, membrane electrodes, etc.) of the fuel cell stack are sequentially stacked together along the first positioning unit 2 and the second positioning unit 3, specifically, two positioning holes 6 of the end plates are matched with the first positioning unit 2 and the second positioning unit 3 in a one-to-one correspondence manner, due to the restoring action of the first restoring unit 4, the end plates can finely adjust the distance between the first positioning unit 2 and the second positioning unit 3 in the moving process of the first positioning unit 2 and the second positioning unit 3, then the end plates can be subjected to the pre-tightening force provided by the first positioning unit 2 and the second positioning unit 3, and then the components (end plates, current collecting plates, membrane electrodes, etc.) of the fuel cell stack are sequentially stacked together along the first positioning unit 2 and the second positioning unit 3, so that the components of the fuel cell stack can be better matched and attached tightly, the assembly accuracy of the fuel cell stack is improved. Specifically, the following steps are carried out: the components (the end plate, the bipolar plate, the current collecting plate, the membrane electrode and the like) of the fuel cell stack are standard components with qualified quality, namely the distance between the two positioning holes 6 of the end plate, the bipolar plate, the current collecting plate, the membrane electrode and the like meets the requirement of error and the components are qualified products.
After the components of the fuel cell stack are sequentially stacked together along the first positioning unit 2 and the second positioning unit 3, after the oil press is pressed and the stack is fastened and locked, the fuel cell stack is taken out from the first positioning unit 2 and the second positioning unit 3, one assembly cycle of stack assembly is completed, and then the steps are repeated to carry out the next stack assembly.
In another preferred embodiment, the components (end plate, bipolar plate, current collecting plate, membrane electrode, etc.) of the fuel cell stack are sequentially stacked together along the first positioning unit 2 and the second positioning unit 3, specifically, the two positioning holes 6 of the end plate are matched with the first positioning unit 2 and the second positioning unit 3 one by one, then the bipolar plate, the current collecting plate, the membrane electrode, etc. are sequentially stacked together along the first positioning unit 2 and the second positioning unit 3, due to the recovery action of the first recovery unit 4, the components of the fuel cell stack can finely adjust the distance between the first positioning unit 2 and the second positioning unit 3 during the moving process of the first positioning unit 2 and the second positioning unit 3, and then the components of the fuel cell stack can be subjected to the pre-tightening force provided by the first positioning unit 2 and the second positioning unit 3, so that the components of the fuel cell stack can be better matched and attached, the assembly accuracy of the fuel cell stack is improved.
The fuel cell stacks with different dimensions are different in dimension, and the dimensions of the components of the same fuel cell stack are the same, which mainly means that the distances between the two positioning holes 6 of the components of the fuel cell stack are the same.
Referring to fig. 2, a first sliding groove 11 is formed in the top surface of the supporting unit 1, a part of the structure of the first positioning unit 2 is disposed in the first sliding groove 11, so that the first positioning unit 2 is slidably connected to the supporting unit 1, the first recovery unit 4 is disposed in the first sliding groove 11, and two ends of the first recovery unit are respectively fixedly connected to the first positioning unit 2 and the supporting unit 1 in a one-to-one correspondence manner.
The first recovery unit 4 comprises a first recovery part 41 and a second recovery part 42, the first recovery part 41 is located in the first sliding groove 11 on one side of the first positioning unit 2 and is fixedly connected with the first positioning unit 2 and the supporting unit 1 in a one-to-one correspondence manner, and the second recovery part 42 is located in the first sliding groove 11 on the other side of the first positioning unit 2 and is fixedly connected with the first positioning unit 2 and the supporting unit 1 in a one-to-one correspondence manner. The first positioning unit 2 comprises a first sliding block 21 and a first positioning rod 22, the first sliding block 21 is slidably connected with the supporting unit 1 through the first sliding groove 11, the first positioning rod 22 is arranged on the first sliding block 21 and used for being matched with a positioning hole 6 of a fuel cell stack, the first restoring piece 41 is positioned in the first sliding groove 11 on one side of the first sliding block 21 and fixedly connected with the first sliding block 21 and the supporting unit 1 in a one-to-one correspondence manner, and the second restoring piece 42 is positioned in the first sliding groove 11 on the other side of the first sliding block 21 and fixedly connected with the first sliding block 21 and the supporting unit 1 in a one-to-one correspondence manner. The first positioning unit 2 further comprises a first locking member 23, the first locking member 23 is disposed on the first sliding block 21, and the first locking member 23 is used for locking the first sliding block 21 with the supporting unit 1.
In the use process of the positioning device for assembling the fuel cell stack, the distance between the first positioning unit 2 and the second positioning unit 3 is firstly adjusted, then the first positioning unit 2 and the second positioning unit 3 are correspondingly matched with the two positioning holes 6 of the fuel cell stack one by one, namely, all components (end plates, bipolar plates, current collecting plates, membrane electrodes and the like) of the fuel cell stack are sequentially overlapped together along the first positioning unit 2 and the second positioning unit 3, and due to the restoring action of the first restoring piece 41 and the second restoring piece 42, the first sliding block 21 is more stable in the moving process, so that the position adjustment of the first positioning rod 22 is stable and accurate, namely, the distance between the first positioning unit 2 and the second positioning unit 3 is accurate, when the fuel cell stacks with different size specifications are positioned, the distance between the first positioning unit 2 and the second positioning unit 3 is convenient to adjust, the distance adjusting range between the first positioning unit 2 and the second positioning unit 3 is not only some determined numerical values, the distance between the first positioning unit 2 and the second positioning unit 3 can be adjusted randomly in a continuous numerical value range, and the universality is strong; after the distance between first locating unit 2 and the second locating unit 3 is adjusted, for the initial setting value, later each subassembly (end plate, bipolar plate, current collector, membrane electrode etc.) of fuel cell pile when superpose together along first locating unit 2 and second locating unit 3 order, distance between first locating unit 2 and the second locating unit 3 is still adjustable, promptly distance between first locating unit 2 and the second locating unit 3 can finely tune again, accessible after the fine tuning first retaining member 23 will first slider 21 with supporting element 1 locks, the practical application of being convenient for of design like this, and can pass through first locating unit 2 and second locating unit 3 provide the pretightning force for each subassembly of fuel cell pile can be better cooperation hug closely, has improved the equipment precision of fuel cell pile.
Wherein, the first locking member 23 is connected with the first sliding block 21 by screw thread, the first locking member 23 can move relative to the first positioning rod 22, when the first locking member 23 rotates to a certain degree, one end of the first locking member 23 close to the first positioning rod 22 abuts against the supporting unit 1, and at this time, the first locking member 23 locks the first sliding block 21 with the supporting unit 1.
The use method of the positioning device for assembling the fuel cell stack in any embodiment comprises the following steps:
s1: adjusting the distance between the first positioning unit 2 and the second positioning unit 3;
s2: the first positioning unit 2 and the second positioning unit 3 are matched with the two positioning holes 6 of the fuel cell stack in a one-to-one correspondence manner.
Example 2:
as shown in fig. 1 to 3, a positioning device for assembling a fuel cell stack includes a support unit 1, a first positioning unit 2, and a second positioning unit 3, wherein the first positioning unit 2 and the second positioning unit 3 are disposed on the support unit 1 at intervals.
The first positioning unit 2 is movably connected with the supporting unit 1 through a first recovery unit 4, and the first recovery unit 4 can adjust the distance between the first positioning unit 2 and the second positioning unit 3 so that the first positioning unit 2 and the second positioning unit 3 can be correspondingly matched with two positioning holes 6 of the fuel cell stack one by one.
The second positioning unit 3 is movably connected with the supporting unit 1 through a second recovery unit 5, and the first recovery unit 4 and the second recovery unit 5 are used for cooperatively adjusting the distance between the first positioning unit 2 and the second positioning unit 3, so that the first positioning unit 2 and the second positioning unit 3 are correspondingly matched with two positioning holes 6 of the fuel cell stack one by one.
In the use process of the positioning device for assembling the fuel cell stack, the distance between the first positioning unit 2 and the second positioning unit 3 is firstly adjusted, then the first positioning unit 2 and the second positioning unit 3 are correspondingly matched with the two positioning holes 6 of the fuel cell stack one by one, namely, all components (end plates, bipolar plates, current collecting plates, membrane electrodes and the like) of the fuel cell stack are sequentially overlapped together along the first positioning unit 2 and the second positioning unit 3, and the first positioning unit 2 and the second positioning unit 3 can move relative to the supporting unit 1, so that the distance adjusting range of the first positioning unit 2 and the second positioning unit 3 is wider, when the fuel cell stacks with different sizes and specifications are positioned, the distance between the first positioning unit 2 and the second positioning unit 3 is convenient to adjust, and the distance adjusting range between the first positioning unit 2 and the second positioning unit 3 is not only a certain number value, the distance between the first positioning unit 2 and the second positioning unit 3 can be adjusted randomly in a continuous numerical range, and the universality is strong; the distance between the first positioning unit 2 and the second positioning unit 3 is adjusted to be a primary adjustment value, fine adjustment can be carried out again, practical application is facilitated, and the pretightening force can be provided through the first positioning unit 2 and the second positioning unit 3, so that each component of the fuel cell stack can be better matched and attached tightly, and the assembly precision of the fuel cell stack is improved.
Referring to fig. 2, a second sliding groove 12 is formed in the top surface of the supporting unit 1, a part of the structure of the second positioning unit 3 is disposed in the second sliding groove 12, so that the second positioning unit 3 is slidably connected to the supporting unit 1, the second restoring unit 5 is disposed in the second sliding groove 12, and two ends of the second restoring unit are respectively fixedly connected to the first positioning unit 2 and the supporting unit 1 in a one-to-one correspondence manner.
The second recovery unit 5 includes a third recovery member 51 and a fourth recovery member 52, the third recovery member 51 is located in the second sliding groove 12 on one side of the second positioning unit 3 and is respectively in one-to-one correspondence fixed connection with the second positioning unit 3 and the supporting unit 1, and the fourth recovery member 52 is located in the second sliding groove 12 on the other side of the second positioning unit 3 and is respectively in one-to-one correspondence fixed connection with the second positioning unit 3 and the supporting unit 1. The second positioning unit 3 includes a second slider 31, a second positioning rod 32 and a second locking member 33, the second slider 31 is connected to the supporting unit 1 through the second sliding groove 12, the second positioning rod 32 is disposed on the second slider 31 to match with another positioning hole 6 of the fuel cell stack, the second locking member 33 is disposed on the second slider 31 to lock the second slider 31 to the supporting unit 1, the third restoring member 51 is disposed in the second sliding groove 12 on one side of the second slider 31 and is respectively connected to the second slider 31 and the supporting unit 1 in a one-to-one correspondence manner, and the fourth restoring member 52 is disposed in the second sliding groove 12 on the other side of the second slider 31 and is respectively connected to the second slider 31 and the supporting unit 1 in a one-to-one correspondence manner.
In the use process of the positioning device for assembling the fuel cell stack, the distance between the first positioning unit 2 and the second positioning unit 3 is firstly adjusted, then the first positioning unit 2 and the second positioning unit 3 are correspondingly matched with the two positioning holes 6 of the fuel cell stack one by one, namely, components (end plates, bipolar plates, current collecting plates, membrane electrodes and the like) of the fuel cell stack are sequentially overlapped together along the first positioning unit 2 and the second positioning unit 3, and due to the restoring action of the first restoring piece 41, the second restoring piece 42, the third restoring piece 51 and the fourth restoring piece 52, the first sliding block 21 and the second sliding block 31 are more stable in the moving process, so that the distance adjusting range between the first positioning rod 22 and the first positioning rod 22 is wider, and when the fuel cell stacks with different dimensions are positioned, the distance between the first positioning unit 2 and the second positioning unit 3 is more convenient, the distance adjusting range between the first positioning unit 2 and the second positioning unit 3 is not only some determined numerical values, the distance between the first positioning unit 2 and the second positioning unit 3 can be adjusted randomly in a continuous numerical value range, and the universality is strong; after the distance between first positioning unit 2 and the second positioning unit 3 is adjusted, for the initial setting value, later each subassembly of fuel cell pile (end plate, bipolar plate, collector plate, membrane electrode etc.) when together along first positioning unit 2 and the 3 stack in proper order of second positioning unit, distance between first positioning unit 2 and the second positioning unit 3 is still adjustable, promptly distance between first positioning unit 2 and the second positioning unit 3 can finely tune again, accessible after the fine setting first retaining member 23 will first slider 21 with the locking of support element 1, the practical application of being convenient for of design like this, and can pass through first positioning unit 2 and second positioning unit 3 provide the pretightning force for each subassembly of fuel cell pile can be better cooperation paste tightly, has improved the equipment precision of fuel cell pile.
Similarly, the second locking member 33 is in threaded connection with the second sliding block 31, the second locking member 33 can move relative to the second positioning rod 32, when the second locking member 33 rotates to a certain degree, one end, close to the second positioning rod 32, of the second locking member 33 abuts against the supporting unit 1, and at the moment, the second sliding block 31 and the supporting unit 1 are locked by the second locking member 33.
The use method of the positioning device for assembling the fuel cell stack in any embodiment comprises the following steps:
s1: adjusting the distance between the first positioning unit 2 and the second positioning unit 3;
s2: the first positioning unit 2 and the second positioning unit 3 are matched with the two positioning holes 6 of the fuel cell stack in a one-to-one correspondence manner.
Compared with the prior art, the positioning device for assembling the fuel cell stack provided by the invention has the following beneficial effects:
in the using process of the positioning device for assembling the fuel cell stack, the distance between the first positioning unit 2 and the second positioning unit 3 is firstly adjusted, and then the first positioning unit 2 and the second positioning unit 3 are correspondingly matched with the two positioning holes 6 of the fuel cell stack one by one, namely, all components (an end plate, a bipolar plate, a current collecting plate, a membrane electrode and the like) of the fuel cell stack are sequentially overlapped together along the first positioning unit 2 and the second positioning unit 3; according to the positioning device for assembling the fuel cell stack, when the fuel cell stacks with different sizes and specifications are positioned, the distance between the first positioning unit 2 and the second positioning unit 3 is convenient to adjust, the distance adjusting range between the first positioning unit 2 and the second positioning unit 3 is not only a certain number, the distance between the first positioning unit 2 and the second positioning unit 3 can be adjusted randomly within a continuous number range, and the universality is high; the distance between the first positioning unit 2 and the second positioning unit 3 is adjusted to be a primary adjustment value, fine adjustment can be carried out again, practical application is facilitated, and the pretightening force can be provided through the first positioning unit 2 and the second positioning unit 3, so that each component of the fuel cell stack can be better matched and attached tightly, and the assembly precision of the fuel cell stack is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are within the scope of the present invention.
Claims (10)
1. The positioning device for assembling the fuel cell stack is characterized by comprising a supporting unit, a first positioning unit and a second positioning unit, wherein the first positioning unit and the second positioning unit are arranged on the supporting unit at intervals;
the first positioning unit is movably connected with the supporting unit through a first recovery unit, and the first recovery unit can adjust the distance between the first positioning unit and the second positioning unit so that the first positioning unit and the second positioning unit can be correspondingly matched with two positioning holes of the fuel cell stack one by one.
2. The positioning device for assembling a fuel cell stack as claimed in claim 1, wherein a first sliding groove is formed on a top surface of the supporting unit, a part of the first positioning unit is disposed in the first sliding groove to slidably connect the first positioning unit and the supporting unit, and the first recovery unit is disposed in the first sliding groove and has two ends fixedly connected to the first positioning unit and the supporting unit in a one-to-one correspondence manner.
3. The positioning device for fuel cell stack assembly according to claim 2, wherein the first returning member includes a first returning member and a second returning member, the first returning member is located in the first sliding groove on one side of the first positioning unit and fixedly connected to the first positioning unit and the supporting unit in a one-to-one correspondence, respectively, and the second returning member is located in the first sliding groove on the other side of the first positioning unit and fixedly connected to the first positioning unit and the supporting unit in a one-to-one correspondence, respectively.
4. The fuel cell stack assembly positioning device according to claim 3, wherein the first positioning unit includes a first slider and a first positioning rod, the first slider is slidably connected to the support unit through the first sliding groove, the first positioning rod is provided on the first slider for being fitted to a positioning hole of the fuel cell stack, the first restoring member is provided in the first sliding groove on one side of the first slider and fixedly connected to the first slider and the support unit in a one-to-one correspondence manner, respectively, and the second restoring member is provided in the first sliding groove on the other side of the first slider and fixedly connected to the first slider and the support unit in a one-to-one correspondence manner, respectively.
5. The fuel cell stack assembly positioning device of claim 4, wherein the first positioning unit further comprises a first locking member provided on the first slider, the first locking member being configured to lock the first slider to the support unit.
6. The fuel cell stack assembly positioning device according to any one of claims 1 to 5, wherein the second positioning unit is movably connected to the supporting unit via a second restoring unit, and the first restoring unit and the second restoring unit are configured to cooperatively adjust a distance between the first positioning unit and the second positioning unit, so that the first positioning unit and the second positioning unit are correspondingly matched with two positioning holes of the fuel cell stack.
7. The positioning device for assembling a fuel cell stack as claimed in claim 6, wherein a second sliding groove is formed on a top surface of the supporting unit, a part of the second positioning unit is disposed in the second sliding groove to allow the second positioning unit to be slidably connected to the supporting unit, and the second returning unit is disposed in the second sliding groove and has two ends respectively fixedly connected to the first positioning unit and the supporting unit in a one-to-one correspondence manner.
8. The positioning device for fuel cell stack assembly according to claim 7, wherein the second returning unit includes a third returning member and a fourth returning member, the third returning member is located in the second sliding groove on one side of the second positioning unit and is respectively and fixedly connected with the second positioning unit and the support unit in a one-to-one correspondence, and the fourth returning member is located in the second sliding groove on the other side of the second positioning unit and is respectively and fixedly connected with the second positioning unit and the support unit in a one-to-one correspondence.
9. The positioning device for fuel cell stack assembly according to claim 8, the second positioning unit comprises a second sliding block, a second positioning rod and a second locking piece, the second sliding block is connected with the supporting unit in a sliding mode through the second sliding groove, the second positioning rod is arranged on the second sliding block and is used for being matched with a positioning hole of the fuel cell stack, the second locking piece is arranged on the second sliding block and used for locking the second sliding block and the supporting unit, the third restoring piece is positioned in the second sliding groove at one side of the second sliding block and is respectively fixedly connected with the second sliding block and the supporting unit in a one-to-one correspondence way, the fourth restoring piece is positioned in the second sliding groove on the other side of the second sliding block and is respectively and fixedly connected with the second sliding block and the supporting unit in a one-to-one correspondence manner.
10. The method of using the positioning device for fuel cell stack assembly according to claim 6, comprising the steps of:
s1: adjusting a distance between the first positioning unit and a second positioning unit;
s2: the first positioning unit and the second positioning unit are matched with the two positioning holes of the fuel cell stack in a one-to-one correspondence manner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210209733.0A CN114583229A (en) | 2022-03-03 | 2022-03-03 | Positioning device for fuel cell stack assembly and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210209733.0A CN114583229A (en) | 2022-03-03 | 2022-03-03 | Positioning device for fuel cell stack assembly and use method thereof |
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| CN114583229A true CN114583229A (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210209733.0A Pending CN114583229A (en) | 2022-03-03 | 2022-03-03 | Positioning device for fuel cell stack assembly and use method thereof |
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