CN219641628U - High flux split-domain type water electrolysis device - Google Patents
High flux split-domain type water electrolysis device Download PDFInfo
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- CN219641628U CN219641628U CN202320578378.4U CN202320578378U CN219641628U CN 219641628 U CN219641628 U CN 219641628U CN 202320578378 U CN202320578378 U CN 202320578378U CN 219641628 U CN219641628 U CN 219641628U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 31
- 230000004907 flux Effects 0.000 title claims description 19
- 238000009826 distribution Methods 0.000 claims description 22
- 239000012528 membrane Substances 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 35
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000011161 development Methods 0.000 abstract description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 3
- 239000001257 hydrogen Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000011068 loading method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
Classifications
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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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model discloses a high-flux split-domain type water electrolysis device, which has the technical scheme that: the utility model has the beneficial effects that: the time cost of the stability and life measurement of the electrolyzed water is greatly reduced, the test efficiency is improved, the high-flux test result is obtained through the split-domain design, the rapid development of the technology for producing hydrogen by the electrolyzed water is further promoted, and the test cost is greatly reduced.
Description
Technical Field
The utility model relates to the technical field of water electrolysis device testing, in particular to a high-flux split-domain water electrolysis device.
Background
In recent years, the technology for producing hydrogen by electrolyzing water is rapidly developed, wherein the research and development of most new materials and new parts are not separated from the test and verification of an electrolytic water device, and the electrolytic water device mainly refers to a clamp for testing the performance and stability of electrolytic water and accessories matched with the clamp, so that the clamp plays a very important role in the development of the electrolytic water technology.
In the existing water electrolysis device, a single flow field plate is provided with only one reaction area, and the flow field plate is usually made of graphite or metal material with very good conductivity, so that the single device can only test a group of experimental objects at the same time, the device has low test efficiency and high test cost, and the rapid development of the water electrolysis technology is seriously hindered.
Disclosure of Invention
Therefore, the utility model provides a high-flux split-domain type water electrolysis device, which aims to solve the problems that a single device can only test a group of experimental objects at the same time, the testing efficiency of the device is low, the testing cost is high, and the rapid development of the water electrolysis technology is seriously hindered.
In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a high flux divides domain formula water electrolysis device, includes two end plates, two end plate one side all is equipped with the current collecting plate locating plate, two be equipped with the domain subassembly between the current collecting plate locating plate, the domain subassembly includes a plurality of current collecting plate constant head tank all offer in current collecting plate locating plate lateral wall, a plurality of current collecting plate constant head tank equidistance distributes, a plurality of current collecting plate constant head tank is inside all to be equipped with the current collecting plate, two current collecting plate locating plate one side all is equipped with the flow field plate frame, two the flow field plate frame inboard all is equipped with a plurality of flow field plates, the flow field plate contacts with the current collecting plate, two be equipped with the membrane electrode assembly between the flow field plate frame.
Preferably, two sides of the two end plates are respectively provided with a flow channel inlet and a flow channel outlet, and the flow channel inlet and the flow channel outlet respectively penetrate through the collector plate positioning plate and the flow field plate frame.
Preferably, a plurality of contact pressure adjusting threaded holes are formed in one side of the end plate, the contact pressure adjusting threaded holes penetrate through the current collecting plate positioning plate, insulating metal screws are connected inside the contact pressure adjusting threaded holes through threads, penetrate through the current collecting plate positioning plate through the insulating metal screws and extend into the current collecting plate positioning grooves, and the end parts of the insulating metal screws are in contact with the current collecting plate.
Preferably, a plurality of bolt fixing holes are formed in one side of the end plate.
Preferably, a plurality of fixed current collecting plate threaded holes are formed in one side of the current collecting plate positioning plate, and the current collecting plate is fixedly connected with the current collecting plate positioning plate through the fixed current collecting plate threaded holes.
Preferably, a flow field inlet distribution domain and a flow field outlet distribution domain are respectively arranged on one side of the flow field plate frame, which is close to the membrane electrode assembly, the flow field inlet distribution domain is communicated with the flow channel inlet, the flow field outlet distribution domain is communicated with the flow channel outlet, and a plurality of transverse flow channels are arranged between the flow field inlet distribution domain and the flow field outlet distribution domain.
Preferably, the flow field plate frame is equal to the flow field plate thickness.
Preferably, in the membrane electrode preparation process, the catalyst layer is distributed according to the domain components of the device, the unique membrane electrode with the catalyst layer distributed according to the domain components is prepared, and the porous layer and the sealing ring thereof are cut according to the size of each domain.
The embodiment of the utility model has the following advantages:
by utilizing the high-flux split-domain type water electrolysis device, not only can different samples be tested in the same device, but also the stability and the service life of a plurality of samples can be tested in one test system, the time cost of water electrolysis stability and service life test is greatly reduced, the test efficiency is improved, the high-flux test result is obtained through split-domain design, the multiplied test result output can be obtained in the same time, the rapid development of the water electrolysis hydrogen production technology is further promoted, and the test cost is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model 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. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.
FIG. 1 is a schematic view of a longitudinal section of a high flux split-domain type water electrolysis device according to the present utility model;
FIG. 2 is a schematic top view of an end plate structure according to the present utility model;
fig. 3 is a schematic top view of a locating plate of a current collecting plate according to the present utility model;
fig. 4 is a schematic top view of a flow field plate provided by the present utility model;
FIG. 5 is a view of a current collector plate positioning plate without a contact pressure adjustment threaded hole provided by the utility model;
fig. 6 is an assembly view of a current collecting plate and a current collecting plate positioning plate provided by the utility model;
FIG. 7 is a flow field plate frame and flow field plate diagram provided by the present utility model;
FIG. 8 is an assembly view of a high flux split-domain water electrolysis device provided by the utility model;
FIG. 9 is a diagram of two modes of operation provided by the present utility model;
FIG. 10 is a verification chart of a high flux split domain type water electrolysis device, which is a single domain test result under the same working condition of the same membrane electrode provided by the utility model;
FIG. 11 is a view of a split-domain membrane electrode assembly according to the present utility model;
FIG. 12 is a graph of the performance of the utility model for studying different membrane electrode loadings using a high flux split domain water electrolysis device;
FIG. 13 is a graph of uniform pressure patterns and individual domain modulation patterns provided by the present utility model;
FIG. 14 is a graph showing the results of internal pressure testing in different modes provided by the present utility model;
FIG. 15 is a graph of the pressure screw versus test results for a sheet material provided by the present utility model with poor rigidity.
In the figure: 1. an end plate; 2. a collector plate positioning plate; 3. a flow field plate frame; 4. a membrane electrode assembly; 5. a current collecting plate; 6. a flow field plate; 7. a contact pressure adjusting threaded hole; 8. a flow channel inlet; 9. a flow channel outlet; 10. a bolt fixing hole; 11. a collector plate positioning groove; 12. fixing the threaded holes of the current collecting plate; 13. a flow field inlet distribution domain; 14. a flow field outlet distribution domain; 15. and a transverse flow passage.
Detailed Description
Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-15, the high flux split-domain type water electrolysis device provided by the utility model comprises two end plates 1, wherein one side of each end plate 1 is provided with a current collecting plate positioning plate 2, a domain component is arranged between each current collecting plate positioning plate 2, each domain component comprises a plurality of current collecting plate positioning grooves 11, each current collecting plate positioning groove 11 is arranged on the side wall of each current collecting plate positioning plate 2, the current collecting plate positioning grooves 11 are distributed at equal intervals, each current collecting plate 5 is arranged in each current collecting plate positioning groove 11, one side of each current collecting plate positioning plate 2 is provided with a flow field plate frame 3, the inner sides of the two flow field plate frames 3 are provided with a plurality of flow field plates 6, each flow field plate 6 is contacted with each current collecting plate 5, a membrane electrode component 4 is arranged between the two flow field plate frames 3, a plurality of fixed current collecting plate threaded holes 12 are formed in one side of the current collecting plate positioning plate 2, the current collecting plate 5 is fixedly connected with the current collecting plate positioning plate 2 through the fixed current collecting plate threaded holes 12, a flow field inlet distribution domain 13 and a flow field outlet distribution domain 14 are respectively formed in one side of the flow field plate frame 3, which is close to the membrane electrode assembly 4, the flow field inlet distribution domain 13 is communicated with the flow channel inlet 8, the flow field outlet distribution domain 14 is communicated with the flow channel outlet 9, a plurality of transverse flow channels 15 are formed between the flow field inlet distribution domain 13 and the flow field outlet distribution domain 14, the thickness of the flow field plate frame 3 is equal to that of the flow field plate 6, a catalyst layer is distributed according to the domain assembly of the device in the membrane electrode preparation process, a unique membrane electrode with the catalyst layer distributed according to the domain assembly is prepared, and a porous layer and a sealing ring thereof are cut according to the size of each domain;
in this embodiment, the end plate 1 is the outermost structure of the device, and is mainly responsible for realizing accurate positioning and assembly of each internal component and providing uniform pressure for each component, and materials usable for the end plate 1 include high-strength organic matters (plastics), metals or alloys thereof;
as shown in fig. 13-14, fig. 14 shows the internal pressure test paper and the contact resistance test results under three different conditions, including non-uniform pressure, high pressure and low pressure conditions of uniform pressure, the pressure can be changed in a larger range (0-0.6 MPa, limited by the test range of the pressure test paper, the actual pressure can exceed 0.6 MPa) through the adjustment of screw torque, and the contact resistance among all components in the device can be obviously influenced, so that the performance of the water electrolysis device test is influenced, therefore, on one hand, the pressure of each domain can be changed through the adjustment of screws of an independent domain through torque, the research of the influence of the pressure on the water electrolysis device can be realized, and on the other hand, when materials with poor rigidity are used as end plates, the end plates can generate certain deflection or deformation in the device assembly process, the pressure of each domain in the interior is different, the instability of the test results is generated, the same pressure of each domain can be realized through the adjustment of screws of the independent domain, and the reliability of the test is ensured as shown in fig. 15;
the insulating layer is designed in the current collecting plate positioning groove 11 after the insulating layer is made of non-conductive solid materials or made of metal materials to independently operate the current collecting plate 5, the structure is shown in a schematic diagram as shown in fig. 3, the insulating layer is mainly provided with a design of a plurality of current collecting plate positioning grooves 11, the current collecting plate positioning grooves 11 are mainly used for positioning and fixing the current collecting plate 5, two sides of the current collecting plate positioning plate 2 are also provided with flow path through holes or flow field inlets and outlets, the depth and the width of the current collecting plate positioning grooves 11 are generally consistent with the thickness and the width of the current collecting plate 5 respectively, the accurate assembly of the current collecting plate 5 and the full contact with other parts are ensured, the current collecting plate positioning grooves 11 of the current collecting plate positioning plate 2 can be internally provided with contact pressure adjusting threaded holes 7 corresponding to the positions of the end plates 1 according to the requirements, the passing of adjusting screws are facilitated, the back of the current collecting plate 5 is directly acted, and the pressure adjustment of an independent domain is realized;
the device is designed into an independent strip shape, so that a single domain, a part of domain or all domains are conveniently connected together for testing, the current collecting plates 5 are placed in the current collecting plate positioning grooves 11, three sides of the current collecting plates are in contact with the inner surfaces of the current collecting plate positioning grooves 11 and are insulated, the current collecting plates 5 are mutually insulated in the device, independent operation can be guaranteed, the surfaces of the remaining sides of the current collecting plates are in contact with the flow field plates 6 to form conductive paths, the current collecting paths are mainly made of metal materials with good conductivity, surface plating treatment can be carried out, the contact resistance between the current collecting plates and the flow field plates 6 is reduced, the performance and the service life of the device are improved, in the high-flux domain type water electrolysis device assembling process, the current collecting plates are firstly fixed with the current collecting plate positioning plates 2, as shown in fig. 6, and meanwhile, the length of each current collecting plate 5 is longer than the width of each positioning plate, the current collecting plates protrude out after the assembly, and external circuit connection is convenient;
the flow field plate 6 is mainly formed by processing a non-conductive part embedded into a conductive flow field plate 6, as shown in fig. 4 and 7, the flow field plate 6 is mainly made of materials with good conductivity, including but not limited to various metal materials, graphite and the like, which are opposite to the position of the flow collecting plate 5, are distributed on each part of the flow field, the thickness of the flow field plate is equal to that of a flow field plate frame 3, the flow field plate frame 3 is completely embedded into the flow field plate frame 3, the surface size is slightly larger than the corresponding domain active reaction area, the full contact with an internal membrane electrode assembly 4 is ensured, flow field inlet distribution domains 13 and flow field outlet distribution domains 14 distributed on two sides of the flow field plate frame 3 are also reserved for connecting a flow path inlet and a flow path outlet with a flow path, and the flow field plate 6 in the flow field plate frame 3 is fully contacted with the flow collecting plate 5 to form a conductive path;
in order to achieve the purpose of flow passage in and out, the device is achieved by adopting the following technical scheme: two sides of the two end plates 1 are respectively provided with a flow channel inlet 8 and a flow channel outlet 9, and the flow channel inlet 8 and the flow channel outlet 9 respectively penetrate through the collector plate positioning plate 2 and the flow field plate frame 3;
in order to achieve the purpose of adjusting pressure intensity, the device is achieved by adopting the following technical scheme: a plurality of contact pressure adjusting threaded holes 7 are formed in one side of the end plate 1, the contact pressure adjusting threaded holes 7 penetrate through the current collecting plate positioning plate 2, insulating metal screws are connected inside the contact pressure adjusting threaded holes 7 through threads, penetrate through the current collecting plate positioning plate 2 through the insulating metal screws and extend into the current collecting plate positioning grooves 11, and the ends of the insulating metal screws are in contact with the current collecting plate 5; the adjustment of the internal pressure in each domain can be realized by using an insulated flat head screw or a metal screw with an insulated flat head and changing the torque when the screw is assembled;
in order to achieve the purpose of convenient fixation, the device is achieved by adopting the following technical scheme: a plurality of bolt fixing holes 10 are formed in one side of the end plate 1, and the end plate 1 and other devices are conveniently fixed through the bolt fixing holes 10.
After the high-flux split-domain type water electrolysis device is assembled, a plurality of operation modes are provided, as shown in fig. 9, the device can be assembled once according to different experimental requirements, the mode of independently operating and testing each domain can also realize the common test or operation of part of domains or all domains through a connecting plate or connecting wire, and the state of operating each domain under the common voltage is realized through controlling the voltage;
the polarization curves of the electrolytic water performance tested by each domain are shown in figure 10, the performance curves obtained by each domain are very similar, the difference is within the acceptable system error range, and the reliability of the high-flux split-domain electrolytic water device is verified;
the high flux split domain type water electrolysis device can be used for rapid high flux test, such as membrane electrode shown in figure 11, wherein 8 domains thereof have 4 different loading amounts respectively, including 0.1, 0.5, 1.0, 2.0 mg cm -2 And the catalyst layers between each domain are not connected, the test results are shown in fig. 12, including the test results of each domain and the test results according to the loading, we can find that the catalyst loading has an important effect on the electrolytic water performance, and the effect of four catalyst loading is evaluated by using the high flux split domain type electrolytic water device.
The above description is of the preferred embodiments of the present utility model, and any person skilled in the art may modify the present utility model or make modifications to the present utility model with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present utility model falls within the scope of the protection claimed by the present utility model.
Claims (8)
1. A high flux split domain water electrolysis device comprising two end plates (1), characterized in that: two end plate (1) one side all is equipped with current collecting plate locating plate (2), two be equipped with the domain subassembly between current collecting plate locating plate (2), the domain subassembly includes a plurality of current collecting plate constant head tank (11) all offer in current collecting plate locating plate (2) lateral wall, a plurality of current collecting plate constant head tank (11) equidistance distributes, a plurality of current collecting plate constant head tank (11) are inside all to be equipped with current collecting plate (5), two current collecting plate locating plate (2) one side all is equipped with flow field plate frame (3), two flow field plate frame (3) inboard all is equipped with a plurality of flow field plates (6), flow field plate (6) contact with current collecting plate (5), two be equipped with membrane electrode assembly (4) between flow field plate frame (3).
2. A high flux split domain water electrolysis device according to claim 1, wherein: two sides of the end plates (1) are respectively provided with a flow channel inlet (8) and a flow channel outlet (9), and the flow channel inlet (8) and the flow channel outlet (9) respectively penetrate through the flow collecting plate positioning plate (2) and the flow field plate frame (3).
3. A high flux split domain water electrolysis device according to claim 1, wherein: a plurality of contact pressure adjusting threaded holes (7) are formed in one side of the end plate (1), the contact pressure adjusting threaded holes (7) penetrate through the current collecting plate positioning plate (2), insulating metal screws are connected inside the contact pressure adjusting threaded holes (7) through threads, penetrate through the current collecting plate positioning plate (2) through the insulating metal screws and extend into the current collecting plate positioning grooves (11), and the ends of the insulating metal screws are in contact with the current collecting plate (5).
4. A high flux split domain water electrolysis device according to claim 1, wherein: a plurality of bolt fixing holes (10) are formed in one side of the end plate (1).
5. A high flux split domain water electrolysis device according to claim 1, wherein: a plurality of fixed current collecting plate threaded holes (12) are formed in one side of the current collecting plate positioning plate (2), and the current collecting plate (5) is fixedly connected with the current collecting plate positioning plate (2) through the fixed current collecting plate threaded holes (12).
6. A high flux split domain water electrolysis device according to claim 1, wherein: the flow field plate frame (3) is close to one side of the membrane electrode assembly (4) and is provided with a flow field inlet distribution domain (13) and a flow field outlet distribution domain (14) respectively, the flow field inlet distribution domain (13) is communicated with the flow channel inlet (8), the flow field outlet distribution domain (14) is communicated with the flow channel outlet (9), and a plurality of transverse flow channels (15) are arranged between the flow field inlet distribution domain (13) and the flow field outlet distribution domain (14).
7. A high flux split domain water electrolysis device according to claim 1, wherein: the thickness of the flow field plate frame (3) is equal to that of the flow field plate (6).
8. A high flux split domain water electrolysis device according to claim 1, wherein: in the preparation process of the membrane electrode, the catalyst layer is distributed according to the domain components of the device, the unique membrane electrode with the catalyst layer distributed according to the domain components is prepared, and the porous layer and the sealing ring thereof are cut according to the size of each domain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320578378.4U CN219641628U (en) | 2023-03-22 | 2023-03-22 | High flux split-domain type water electrolysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320578378.4U CN219641628U (en) | 2023-03-22 | 2023-03-22 | High flux split-domain type water electrolysis device |
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| Publication Number | Publication Date |
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| CN219641628U true CN219641628U (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320578378.4U Active CN219641628U (en) | 2023-03-22 | 2023-03-22 | High flux split-domain type water electrolysis device |
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| Country | Link |
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| CN (1) | CN219641628U (en) |
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- 2023-03-22 CN CN202320578378.4U patent/CN219641628U/en active Active
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