CN113793966B - Hydrogen fuel cell stacking device - Google Patents
Hydrogen fuel cell stacking device Download PDFInfo
- Publication number
- CN113793966B CN113793966B CN202111117791.2A CN202111117791A CN113793966B CN 113793966 B CN113793966 B CN 113793966B CN 202111117791 A CN202111117791 A CN 202111117791A CN 113793966 B CN113793966 B CN 113793966B
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- fuel cell
- positioning rod
- positioning
- insulating sheet
- bracket
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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
- H01M8/2475—Enclosures, casings or containers of 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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- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a hydrogen fuel cell stacking device, comprising: the fuel cell stack comprises a bracket and a plurality of positioning rods arranged on the bracket, wherein the positioning rods jointly enclose a fuel cell stack cavity; the locating rod comprises a fixed first locating rod and a second locating rod corresponding to the installation position of the insulating sheet, the second locating rod is arranged on the support in a self-rotating mode, and an avoidance hole is formed in one side of the second locating rod. In practical application, the side, which is not kept away, of the second positioning rod faces the fuel cell stacking cavity, and then the lower cover plate, the bipolar plate and the membrane electrode are stacked by taking the positioning rods as references to form a galvanic pile; after the stacking is finished, rotating the second positioning rod to enable the clearance position to face the fuel cell stacking cavity; at this moment, the insulating sheet is penetrated from the clearance position and is accomplished the installation of insulating sheet, and the insulating sheet is accomplished the back of adorning, and the second locating lever of gyration resumes the location to the pile again. The invention solves the problem that the insulating sheet can not be installed after the bipolar plate and the membrane electrode are assembled.
Description
Technical Field
The invention relates to the technical field of fuel cell assembly, in particular to a hydrogen fuel cell stacking device.
Background
A fuel cell stack is a device that directly generates electric energy from fuel through an electrochemical reaction, and is formed by stacking a plurality of fuel cell cells. The fuel cell stack is typically stacked in the following manner: a plurality of bipolar plate single cells are stacked and combined in series.
The utility model discloses a chinese utility model patent that publication number is CN 212434676U discloses a high temperature fuel cell stack dress location frock, including the base, the base up end vertical fixation has first reference column, second reference column, first adjustable reference column, the adjustable reference column of second, has placed down the briquetting backing plate on the base up end between first reference column, second reference column, first adjustable reference column and the adjustable reference column of second, and lower briquetting backing plate top is equipped with the briquetting backing plate that parallels with the briquetting backing plate down. During the use, place the briquetting backing plate down, before fuel cell stack dress work, earlier make it satisfy the size requirement according to the first adjustable reference column of model adjustment and the adjustable reference column of second to locking screw is in order to prevent that first adjustable reference column and the adjustable reference column of second from sliding, carries out fuel cell's stack dress according to the technological requirement, and the back is accomplished in the stack dress, places the briquetting backing plate at fuel cell top end, can get into next technology compression equipment.
The fuel cell stacking and positioning tool provided by the utility model can ensure accurate positioning and the verticality of stacked bipolar plate monocells during stacking; however, in order to protect the fuel cell from conducting electricity leakage with the outside and prevent the fuel cell from being exposed and adsorbing external dust to influence the use effect of the fuel; after the stacking is completed, it is also usually necessary to attach insulating sheets on both sides. The existing structure is in positioning contact with the electric pile before and after positioning, after the electric pile is stacked, an insulating sheet cannot be installed, forced extrusion can affect the verticality and consistency of the double pole pieces and the membrane electrode in the electric pile, and the double pole pieces and the membrane electrode can be scratched.
Disclosure of Invention
The invention aims to provide a hydrogen fuel cell stacking device which can be used for accurately positioning during stacking, ensuring the verticality and smoothly adding an insulating sheet after the stacking is finished.
In order to achieve the purpose, the invention adopts the following technical scheme.
A hydrogen fuel cell stacking apparatus comprising: the fuel cell stack comprises a bracket and a plurality of positioning rods arranged on the bracket, wherein the positioning rods jointly enclose a fuel cell stack cavity; the positioning rod comprises a fixed first positioning rod and a second positioning rod corresponding to the installation position of the insulating sheet, the second positioning rod is arranged on the support in a self-rotating mode, and an avoiding vacancy is formed in one side of the second positioning rod.
In practical application, the side, which is not kept clear, of the second positioning rod faces the fuel cell stacking cavity, and then the lower cover plate, the bipolar plate and the membrane electrode are stacked by taking each positioning rod as a reference to form a stack; after the stacking is finished, the second positioning rod is rotated to enable the clearance position to face the fuel cell stacking cavity; at this moment, follow the insulating piece the installation of insulating piece is accomplished in penetrating the vacancy position, and the insulating piece is adorned the back, gyrates again the second locating lever resumes the location to the pile.
More preferably, when fuel cells are stacked, the clearance of the second positioning rod is rotated 180 degrees away from the fuel cell stacking cavity; when the insulating sheet is installed, the second positioning rod is firstly rotated by 180 degrees, and after the insulating sheet is installed, the second positioning rod is rotated to be compressed with the insulating sheet.
More preferably, the number of the positioning rods is six, the positioning rods are two on the front side and the rear side, and one on the left side and the right side; the positioning rods on the front side and the rear side are rotatably arranged, and the positioning rods on the left side and the right side are fixedly arranged; when the fuel cell is stacked, the positioning is realized by the six external positioning points of the lower cover plate and the bipolar plate.
More preferably, the driving structure of the second positioning rod is: the second positioning rod penetrates through the upper side and the lower side of the bracket, a rack capable of sliding back and forth is arranged at the bottom side of the bracket, and a gear meshed with the rack is fixedly arranged on the second positioning rod; when the positioning device works, the rack is driven by the first power mechanism to slide back and forth, and when the rack slides back and forth, the gear rotates along with the rack, so that the second positioning rod is driven to rotate.
More preferably, the first power mechanism is a cylinder or a linear motor fixed at the bottom of the support.
More preferably, a bearing is mounted between the second positioning rod and the bracket.
More preferably, the rack synchronously drives more than two second positioning rods positioned on the same side to rotate together.
More preferably, the bracket is arranged at the lower side of a fuel cell assembly platform in a lifting way, and through holes corresponding to the positioning rods are arranged on the fuel cell assembly platform; before actually stacking the fuel cells, lifting the support to enable the positioning rods to penetrate through corresponding through holes in the fuel cell assembly platform, and manually stacking a lower cover plate, a bipolar plate and a membrane electrode by taking the positioning rods as a reference; when the stacked fuel cell enters the next working procedure, the bracket is lowered to enable each positioning rod to exit from the corresponding through hole on the fuel cell assembly platform, so that the stacked fuel cell is convenient to take away subsequently.
More preferably, the lifting of the support is driven by a second power mechanism, and the second power mechanism is a screw mechanism, a cylinder or a linear motor.
More preferably, a slide rail guide mechanism is arranged between the bracket and the fuel cell assembly platform; the fuel cell assembling platform is provided with a sliding rail matched with the sliding block.
The invention has the beneficial effects that: but through the second locating lever that sets up the rotation and set up on the second locating lever and keep away the vacancy, can guarantee to fix a position when piling up accurately, ensure straightness and the uniformity of hanging down, can realize installing additional smoothly of insulating piece through rotating the second locating lever after piling up again, fundamentally has solved the problem that the insulating piece can not install behind well assembled bipolar plate and membrane electrode.
Drawings
Fig. 1 is a schematic structural diagram of a hydrogen fuel cell stacking apparatus according to the present invention.
Fig. 2 shows an assembly diagram of the positioning rod.
Fig. 3 is a partially enlarged view of fig. 2.
Fig. 4 is a partially enlarged view of fig. 1.
Reference numerals indicate the same.
1: a bracket, 2: positioning rod, 3: insulating sheet, 4: galvanic pile, 5: rack, 6: gear, 7: first power mechanism, 8: bearing, 9: fuel cell assembly platform, 10: second power mechanism, 11: slider, 12: a slide rail.
2-1 first positioning rod, 2-2: second positioning rod, 2-3: avoiding the vacancy.
Detailed Description
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the feature, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; mechanical connection is also possible; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above-mentioned terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise specified and limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.
The following describes the embodiments of the present invention with reference to the drawings of the specification, so that the technical solutions and the advantages thereof are more clear and clear. The embodiments described below are exemplary and are intended to be illustrative of the invention, but are not to be construed as limiting the invention.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
As shown in fig. 1 and 2, a hydrogen fuel cell stacking apparatus includes: the fuel cell stack comprises a support 1 and a plurality of positioning rods 2 arranged on the support 1, wherein each positioning rod 2 forms a fuel cell stack cavity; the positioning device is characterized in that the positioning rod 2 comprises a fixed first positioning rod 2-1 and a second positioning rod 2-2 corresponding to the insulation sheet 3, the second positioning rod 2-2 is rotatably installed on the support 1, and an avoidance position 2-3 is arranged on one side of the second positioning rod 2-2.
In practical application, the side, not kept clear, of the second positioning rod 2-2 faces the fuel cell stack cavity, and then the lower cover plate, the bipolar plate and the membrane electrode are stacked by taking each positioning rod 2 as a reference to form a galvanic pile 4; after the stacking is finished, the second positioning rod 2-2 is rotated to enable the clearance position 2-3 to face the fuel cell stacking cavity; at this time, the insulating sheet 3 is inserted into the clearance position of the second positioning rod 2-2 to complete the installation of the insulating sheet 3, and after the insulating sheet 3 is installed, the second positioning rod 2-2 is rotated again to recover the positioning of the electric pile 4.
In this embodiment, it is preferable that the space-avoiding position 2-3 of the second positioning rod 2-2 is away from the fuel cell stack cavity in a 180 ° rotation manner when stacking the fuel cells; when the insulating sheet 3 is installed, the second positioning rod 2-2 is firstly rotated by 180 degrees, and after the insulating sheet 3 is installed, the second positioning rod 2-2 is rotated to be tightly pressed with the insulating sheet 3. The advantage of this arrangement is that it has the most excellent assembly and compression effect.
In this embodiment, the number of the positioning rods 2 is six, two on each of the front and rear sides, and one on each of the left and right sides; the positioning rods 2 on the front side and the rear side are rotatably arranged, and the positioning rods 2 on the left side and the right side are fixedly arranged. When the fuel cell is stacked, the positioning is realized by the six external positioning points of the lower cover plate and the bipolar plate. Obviously, when the installation position of the bipolar plate or the insulating sheet changes, the number and the arrangement mode of the positioning rods can be adjusted according to actual needs, and the present embodiment is not limited.
Referring to fig. 3, the driving structure of the second positioning rod 2-2 is: the second positioning rod 2-2 penetrates through the upper side and the lower side of the support 1, a rack 5 capable of sliding back and forth is arranged on the bottom side of the support 1, and a gear 6 meshed with the rack 5 is fixedly arranged on the second positioning rod 2-2. When the device works, the first power mechanism 7 is utilized to drive the rack 5 to slide back and forth, and when the rack 5 slides back and forth, the gear 6 rotates along with the rack, so that the second positioning rod 2-2 is driven to rotate.
In this embodiment, the first power mechanism 7 is preferably an air cylinder fixed at the bottom of the bracket 1, and the rack 5 preferably drives two or more second positioning rods 2-2 located on the same side to rotate together, so as to simplify the driving structure. In some embodiments, the first power mechanism 7 may be a linear motor, a screw mechanism, or other devices capable of driving the rack 5 to slide back and forth, and is not limited to this embodiment.
In this embodiment, a bearing 8 is further installed between the second positioning rod 2-2 and the bracket 1 to ensure smooth rotation of the second positioning rod 2-2.
As shown in fig. 4, the support 1 is installed on a fuel cell assembly platform 9 in a lifting manner, and through holes corresponding to the positioning rods 2 are formed in the fuel cell assembly platform 9. Before actually stacking the fuel cell, the bracket 1 is lifted up to enable each positioning rod 2 to penetrate through a corresponding through hole on the fuel cell assembly platform 9, and then the lower cover plate, the bipolar plate and the membrane electrode are manually stacked by taking the positioning rod 2 as a reference. When the stacked fuel cell enters the next process, the bracket 1 is lowered to enable each positioning rod 2 to exit from the corresponding through hole on the fuel cell assembly platform 9, so that the stacked fuel cell is convenient to take away subsequently.
In this embodiment, the lifting of the bracket 1 is driven by a second power mechanism 10, the second power mechanism 10 is preferably a screw mechanism, a screw rod of the screw mechanism is connected with the bracket 1, and the lifting of the bracket 1 is realized by driving the screw rod to rotate by a servo motor during operation. In some embodiments, the second power mechanism 10 may be a cylinder or a linear motor, as long as the bracket 1 can be driven to move up and down.
Further, a slide rail guide mechanism is further arranged between the support 1 and the fuel cell assembly platform 9 to ensure that the support and the fuel cell assembly platform can directly and stably slide. In this embodiment, a sliding block 11 is preferably provided on the bracket 1, and a sliding rail 12 that is engaged with the sliding block 11 is preferably provided on the fuel cell assembly platform 9. Of course, in some embodiments, the positions of the sliding block and the sliding rail can be interchanged according to different actual needs.
Compared with the prior art, the hydrogen fuel cell stacking device provided by the embodiment can ensure the perpendicularity and consistency of stacking by performing external positioning through the positioning rod 2; and through avoiding the vacant position on the locating lever 2, add the rotary mechanism at the same time, solve the problem that the insulating strip can't be installed after assembling bipolar plate and membrane electrode effectively.
It will be appreciated by those skilled in the art from the foregoing description of construction and principles that the invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the teachings of the art may be made without departing from the scope of the invention as defined by the appended claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.
Claims (9)
1. A hydrogen fuel cell stacking apparatus comprising: the fuel cell stack comprises a bracket and a plurality of positioning rods arranged on the bracket, wherein the positioning rods jointly enclose a fuel cell stack cavity; the positioning rod comprises a fixed first positioning rod and a second positioning rod corresponding to the mounting position of the insulating sheet, the second positioning rod is rotatably mounted on the bracket, and an avoidance space is arranged on one side of the second positioning rod;
in practical application, the side, which is not kept clear, of the second positioning rod faces the fuel cell stacking cavity, and then the lower cover plate, the bipolar plate and the membrane electrode are stacked by taking each positioning rod as a reference to form a stack; after the stacking is finished, the second positioning rod is rotated to enable the clearance to face the fuel cell stacking cavity; at the moment, the insulating sheet penetrates into the clearance position to complete the installation of the insulating sheet, and after the insulating sheet is installed, the second positioning rod is rotated to recover the positioning of the galvanic pile;
when fuel cells are stacked, the clearance of the second positioning rod is far away from the fuel cell stacking cavity in a 180-degree rotation mode; when the insulating sheet is installed, the second positioning rod is firstly rotated by 180 degrees, and after the insulating sheet is installed, the second positioning rod is rotated to be compressed with the insulating sheet.
2. The hydrogen fuel cell stacking apparatus according to claim 1, wherein the number of the positioning rods is six, two on the front and rear sides, and one on the left and right sides; the positioning rods on the front side and the rear side are rotatably arranged, and the positioning rods on the left side and the right side are fixedly arranged; when the fuel cell is stacked, the positioning is realized by the six external positioning points of the lower cover plate and the bipolar plate.
3. The hydrogen fuel cell stacking apparatus according to claim 1, wherein the driving structure of the second positioning rod is: the second positioning rod penetrates through the upper side and the lower side of the bracket, a rack capable of sliding back and forth is arranged at the bottom side of the bracket, and a gear meshed with the rack is fixedly arranged on the second positioning rod; when the positioning device works, the first power mechanism is utilized to drive the rack to slide back and forth, and when the rack slides back and forth, the gear rotates along with the rack, so that the second positioning rod is driven to rotate.
4. The hydrogen fuel cell stacking apparatus as claimed in claim 3, wherein the first power mechanism is a cylinder or a linear motor fixed to the bottom of the support.
5. A hydrogen fuel cell stacking apparatus according to claim 3, wherein a bearing is provided between the second positioning rod and the bracket.
6. The hydrogen fuel cell stacking apparatus according to claim 3, wherein the rack synchronously rotates two or more second positioning rods located on the same side.
7. The hydrogen fuel cell stacking apparatus according to claim 1, wherein the support is liftably mounted on a lower side of a fuel cell assembly platform, and through holes corresponding to the positioning rods are provided on the fuel cell assembly platform; before the fuel cell is actually assembled and stacked, the bracket is lifted up to enable each positioning rod to penetrate through a corresponding through hole on the fuel cell assembly platform, and then the lower cover plate, the bipolar plate and the membrane electrode are manually stacked by taking the positioning rod as a reference; when the stacked fuel cell enters the next working procedure, the bracket is lowered to enable each positioning rod to exit from the corresponding through hole on the fuel cell assembly platform, so that the stacked fuel cell is convenient to take away subsequently.
8. The hydrogen fuel cell stacking apparatus according to claim 7, wherein the lifting and lowering of the support is driven by a second power mechanism, and the second power mechanism is a screw mechanism, a cylinder, or a linear motor.
9. The hydrogen fuel cell stacking apparatus according to claim 7, wherein a slide rail guide mechanism is provided between the support and the fuel cell assembling platform; the fuel cell assembling platform is provided with a sliding rail matched with the sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111117791.2A CN113793966B (en) | 2021-09-22 | 2021-09-22 | Hydrogen fuel cell stacking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111117791.2A CN113793966B (en) | 2021-09-22 | 2021-09-22 | Hydrogen fuel cell stacking device |
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| CN113793966A CN113793966A (en) | 2021-12-14 |
| CN113793966B true CN113793966B (en) | 2023-01-17 |
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| CN117174980B (en) * | 2023-11-03 | 2024-01-30 | 常州创盛氢能科技有限公司 | Manual plug-in reactor core equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099153A (en) * | 2015-04-29 | 2016-11-09 | 现代自动车株式会社 | For fastening the apparatus and method of fuel cell pack |
| CN110690489A (en) * | 2019-09-17 | 2020-01-14 | 苏州奥加华新能源有限公司 | Assembly jig suitable for fuel cell stack |
| CN215955336U (en) * | 2021-09-22 | 2022-03-04 | 广东国玉科技有限公司 | Hydrogen fuel cell stacking device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101836251B1 (en) * | 2015-07-31 | 2018-03-08 | 현대자동차 주식회사 | Fuel cell stack assembly device |
| KR102008682B1 (en) * | 2016-12-06 | 2019-08-08 | 현대자동차 주식회사 | Assembly system that assembles insulating plate and mounting bar |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099153A (en) * | 2015-04-29 | 2016-11-09 | 现代自动车株式会社 | For fastening the apparatus and method of fuel cell pack |
| CN110690489A (en) * | 2019-09-17 | 2020-01-14 | 苏州奥加华新能源有限公司 | Assembly jig suitable for fuel cell stack |
| CN215955336U (en) * | 2021-09-22 | 2022-03-04 | 广东国玉科技有限公司 | Hydrogen fuel cell stacking device |
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