CN220984568U - Bipolar plate for fuel cell - Google Patents
Bipolar plate for fuel cell Download PDFInfo
- Publication number
- CN220984568U CN220984568U CN202322279568.9U CN202322279568U CN220984568U CN 220984568 U CN220984568 U CN 220984568U CN 202322279568 U CN202322279568 U CN 202322279568U CN 220984568 U CN220984568 U CN 220984568U
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- Prior art keywords
- plate
- fuel cell
- bipolar plate
- heat dissipation
- bipolar
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- 239000000446 fuel Substances 0.000 title claims abstract description 82
- 230000017525 heat dissipation Effects 0.000 claims abstract description 60
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 44
- 229910052802 copper Inorganic materials 0.000 claims description 44
- 239000010949 copper Substances 0.000 claims description 44
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model relates to the technical field of materials, and discloses a bipolar plate for a fuel cell, which comprises an anode plate, wherein a fixing plate is arranged in the middle of the inner wall of one side of the anode plate, and a plurality of first mounting grooves are formed in one end, close to the edge of the fixing plate, of the anode plate. According to the utility model, the stability of the bipolar plate can be increased by arranging the fixing plate, the displacement or deformation of the bipolar plate in the using process is prevented, the normal operation of the fuel cell system is ensured, the damage and faults caused by the movement of the bipolar plate are reduced, the heat outside the bipolar plate can be effectively dissipated by arranging the heat dissipation groove and the first heat dissipation plate, the temperature of the bipolar plate can be kept in a proper range, the energy conversion efficiency and the performance of the fuel cell are improved, and the working temperature of the bipolar plate can be kept in an ideal range by dissipating the heat outside the bipolar plate, so that the performance reduction, the damage or the service life reduction caused by the overheat of the bipolar plate can be avoided.
Description
Technical Field
The utility model relates to the technical field of materials, in particular to a bipolar plate for a fuel cell.
Background
Bipolar plates for fuel cells are important components in fuel cell systems for drawing out the current generated in the fuel cells, and materials having good conductivity and corrosion resistance, such as carbon fiber composite materials, metal materials, and the like, are generally used for the bipolar plates for fuel cells, and the selection of suitable materials needs consideration of factors such as conductivity, corrosion resistance, mechanical strength, gas guiding performance, and the like. The optimization of the material performance can be realized by the modes of preparation technology, surface treatment, catalyst addition and the like.
The conventional bipolar plate for the fuel cell has poor heat conducting performance, heat generated in the fuel cell cannot be effectively conducted to the surface of the bipolar plate and the external environment, so that internal heat is accumulated in the fuel cell, and the problem of overhigh local temperature is caused, and the problems of catalyst deactivation, thermal degradation of a membrane material and the like can be caused by the hot spots, so that the efficiency and the service life of the fuel cell are influenced.
Accordingly, a bipolar plate for a fuel cell is provided by those skilled in the art to solve the problems set forth in the background art described above.
Disclosure of utility model
The utility model aims to solve the defects in the prior art, and provides a bipolar plate for a fuel cell, which is provided with a first mounting groove and a second mounting groove through an anode plate and a cathode plate, further provided with a vent hole through the first mounting groove, and fixedly connected with a first copper plate and a second copper plate through the top surfaces of the first mounting groove and the second mounting groove, further provided with a second heat dissipation plate and a third heat dissipation plate fixedly connected with the first copper plate and the second copper plate, and can effectively conduct heat generated in the fuel cell to the second heat dissipation plate and the third heat dissipation plate from the anode plate and the cathode plate through the excellent heat conductivity of the copper plates, thereby being beneficial to reducing the improvement of the local temperature of the bipolar plate, improving the thermal management effect of a fuel cell system, effectively dispersing the heat inside the fuel cell, avoiding the accumulation of the heat between the anode plate and the cathode plate, reducing the temperature gradient of the fuel cell, having positive influence on improving the thermal stability and the service life of the fuel cell.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The bipolar plate for the fuel cell comprises an anode plate, wherein a fixing plate is arranged in the middle of the inner wall of one side of the anode plate, a plurality of first mounting grooves are formed in one end, close to the edge of the fixing plate, of the anode plate, and first fixing holes are formed in the four corners, close to the anode plate;
The inner wall of one side of the anode plate is provided with a cathode plate, one side of the inner wall of the cathode plate, which is close to the first mounting groove, is provided with a plurality of second mounting grooves, and the cathode plate, which is close to four corners, is provided with second fixing holes.
Through the technical scheme, the first mounting groove and the second mounting groove are formed through the anode plate and the cathode plate, the vent holes are further formed through the first mounting groove, the first copper plate and the second copper plate are fixedly connected to the top surfaces of the first mounting groove and the second mounting groove through the vent holes, and then the second heat dissipation plate and the third heat dissipation plate which are fixedly connected with the first copper plate and the second copper plate can effectively conduct heat generated in the fuel cell to the second heat dissipation plate and the third heat dissipation plate from the anode plate and the cathode plate through excellent heat conductivity of the copper plates, so that improvement of local temperature of the bipolar plate is facilitated, the thermal management effect of a fuel cell system is improved, heat inside the fuel cell can be effectively dispersed, accumulation of heat between the anode plate and the cathode plate is avoided, and therefore the temperature gradient of the fuel cell is reduced, and positive effects are achieved on improving the thermal stability and service life of the fuel cell.
Further, a heat dissipation groove is formed in the middle of the outer wall of one side of the anode plate, and a first heat dissipation plate is fixedly connected to the middle of the heat dissipation groove;
Through above-mentioned technical scheme, through the setting of heat dissipation groove and first heating panel, can effectually dispel the outside heat of bipolar plate, can keep the temperature of bipolar plate in suitable range, improve fuel cell's energy conversion efficiency and performance.
Further, vent holes are formed in the edge of the outer wall of one side of the anode plate, which is close to the anode plate, and the vent holes are all communicated with the first mounting groove;
Through the technical scheme, the channels through which the gas flows can be increased through the existence of the vent holes, and the convection of the air is promoted, so that the heat generated by the fuel cell can be effectively dissipated, and the heat dissipation effect is improved.
Further, the inner top surface of the first mounting groove is fixedly connected with a first copper plate, and the upper surfaces of the first copper plates are fixedly connected with three second heat dissipation plates;
Through the technical scheme, heat can be more effectively conducted from the bipolar plate for the fuel cell to the second heat dissipation plate through the heat conducting property of the first copper plate, and is dissipated through the surface of the second heat dissipation plate.
Further, the inner top surface of the second mounting groove is fixedly connected with a second copper plate, and the upper surfaces of the second copper plates are fixedly connected with two third heat dissipation plates;
Through the technical scheme, heat can be more effectively conducted from the bipolar plate for the fuel cell to the third heat dissipation plate through the heat conducting property of the second copper plate, and is dissipated through the surface of the third heat dissipation plate.
Further, the first fixing hole and the second fixing hole are fixedly connected through a pin;
Through above-mentioned technical scheme, can resist vibration and impact better through the fixed connection of pin, maintain the stability of connection.
Further, the middle part of the outer wall of one side of the cathode plate far away from the anode plate is fixedly connected with a plurality of fourth radiating plates;
Through above-mentioned technical scheme, through a plurality of fourth heat-radiating boards of fixed connection, can increase radiating surface area, this can provide more cooling surface for heat can be conducted to the heating panel from the negative plate more fast, and distribute away through the surface of heating panel.
Further, the first mounting groove is closely attached to the second mounting groove;
Through above-mentioned technical scheme, through the mounting groove of closely laminating can increase the area of contact of connection to improve its stability, this helps preventing that the connection is not hard up or breaks away from, guarantees the firm connection of mounting groove and fuel cell.
The utility model has the following beneficial effects:
1. Compared with the existing bipolar plate for the fuel cell, the bipolar plate for the fuel cell is provided with the first mounting groove and the second mounting groove through the anode plate and the cathode plate, the first copper plate and the second copper plate are fixedly connected with the top surfaces of the first mounting groove and the second mounting groove through the vent holes formed in the first mounting groove and the vent holes formed in the second mounting groove, and further the second heat dissipation plate and the third heat dissipation plate fixedly connected with the first copper plate and the second copper plate can effectively conduct heat generated in the fuel cell to the second heat dissipation plate and the third heat dissipation plate from the anode plate and the cathode plate through the excellent heat conductivity of the copper plates, so that the improvement of the local temperature of the bipolar plate is facilitated to be reduced, the thermal management effect of a fuel cell system is improved, the heat inside the fuel cell can be effectively dispersed, the heat is prevented from accumulating between the anode plate and the cathode plate, the temperature gradient of the fuel cell is reduced, the influence on the improvement of the thermal stability and the service life of the fuel cell is further realized, and the arrangement of the heat dissipation system is beneficial to realizing better heat transfer and heat dispersion, the improvement of the working temperature stability of the fuel cell is further improved, and the overheat performance caused by overheat performance is avoided.
2. Compared with the existing bipolar plate for the fuel cell, the bipolar plate for the fuel cell provided by the utility model has the advantages that the stability of the bipolar plate can be increased through the arrangement of the fixing plate, the displacement or deformation of the bipolar plate in the use process is prevented, the normal operation of a fuel cell system is ensured, the damage and faults caused by the movement of the bipolar plate are reduced, the heat outside the bipolar plate can be effectively dissipated through the arrangement of the heat dissipation groove and the first heat dissipation plate, the temperature of the bipolar plate can be kept in a proper range, the energy conversion efficiency and the performance of the fuel cell are improved, and the working temperature of the bipolar plate can be kept in an ideal range through the heat dissipation of the outside of the bipolar plate, so that the performance reduction, the damage or the service life reduction caused by the overheat of the bipolar plate can be avoided.
3. Compared with the existing bipolar plate for the fuel cell, the bipolar plate for the fuel cell provided by the utility model has the advantages that the bipolar plate for the fuel cell is reasonable and compact, the automation degree is high, the application range is wide, and the practicability is strong through heat dissipation and stable design.
Drawings
Fig. 1 is an isometric view of a bipolar plate for a fuel cell according to the present utility model;
Fig. 2 is a schematic structural view of a bipolar plate anode plate for a fuel cell according to the present utility model;
Fig. 3 is a schematic structural view of a bipolar plate cathode plate for a fuel cell according to the present utility model;
Fig. 4 is a front sectional view of a bipolar plate cathode plate for a fuel cell according to the present utility model;
FIG. 5 is a partial isometric view of a bipolar plate cathode plate for a fuel cell in accordance with the present utility model;
fig. 6 is a side perspective view of a bipolar plate for a fuel cell according to the present utility model.
Legend description:
1. An anode plate; 2. a first fixing hole; 3. a first mounting groove; 4. a vent hole; 5. a fixing plate; 6. a first heat dissipation plate; 7. a heat sink; 8. a cathode plate; 9. a second fixing hole; 10. a second mounting groove; 11. a first copper plate; 12. a second heat dissipation plate; 13. a second copper plate; 14. a third heat dissipation plate; 15. and a fourth heat radiation plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, 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. 1-6, one embodiment provided by the present utility model is: the bipolar plate for the fuel cell comprises an anode plate 1, wherein a fixing plate 5 is arranged in the middle of the inner wall of one side of the anode plate 1, a plurality of first mounting grooves 3 are formed in one end, close to the edge of the fixing plate 5, of the anode plate 1, and first fixing holes 2 are formed in the four corners, close to the anode plate 1;
The inner wall of one side of the anode plate 1 is provided with a cathode plate 8, one side of the inner wall of the cathode plate 8, which is close to the first mounting groove 3, is provided with a plurality of second mounting grooves 10, the cathode plate 8 is provided with second fixing holes 9, which are close to four corners, the middle part of the outer wall of one side of the anode plate 1 is provided with a heat dissipation groove 7, the middle part of the heat dissipation groove 7 is fixedly connected with a first heat dissipation plate 6, the heat outside the bipolar plate can be effectively dissipated through the arrangement of the heat dissipation groove 7 and the first heat dissipation plate 6, the temperature of the bipolar plate can be kept in a proper range, and the energy conversion efficiency and the performance of the fuel cell are improved.
The first mounting groove 3 and the second mounting groove 10 are formed through the anode plate 1 and the cathode plate 8, the vent hole 4 formed through the first mounting groove 3 is further formed, the first copper plate 11 and the second copper plate 13 are fixedly connected to the top surfaces of the first mounting groove 3 and the second mounting groove 10, the second heat dissipation plate 12 and the third heat dissipation plate 14 which are fixedly connected through the first copper plate 11 and the second copper plate 13 can effectively conduct heat generated in the fuel cell to the second heat dissipation plate 12 and the third heat dissipation plate 14 from the anode plate 1 and the cathode plate 8 through excellent heat conductivity of the copper plates, the improvement of the local temperature of the bipolar plate is facilitated to be reduced, the thermal management effect of the fuel cell system is improved, heat in the fuel cell can be effectively dispersed, the accumulation of heat between the anode plate 1 and the cathode plate 8 is avoided, the temperature gradient of the fuel cell is reduced, the positive influence on the improvement of the thermal stability and the service life of the fuel cell is facilitated, the heat dissipation efficiency is improved, the stability of the working temperature of the fuel cell is maintained, and the performance loss caused by overheating is avoided.
The outer wall of one side of the anode plate 1 is provided with vent holes 4 near the edge of the anode plate 1, the vent holes 4 are all in through connection with the first mounting groove 3, a channel for gas circulation can be increased through the existence of the vent holes 4, the convection of air is promoted, the heat generated by the fuel cell is effectively radiated, the radiating effect is improved, the first copper plate 11 is fixedly connected with the inner top surface of the first mounting groove 3, three second radiating plates 12 are fixedly connected with the upper surface of the first copper plate 11, the heat can be more effectively conducted from the bipolar plate for the fuel cell to the second radiating plates 12 through the heat conducting performance of the first copper plate 11, the second copper plate 13 is fixedly connected with the inner top surface of the second mounting groove 10, the two third copper plates 14 are fixedly connected with the upper surface of the second copper plate 13 through the heat conducting performance of the second copper plate 13, the heat can be more effectively conducted from the bipolar plate for the fuel cell to the third heat dissipation plate 14 and dissipated through the surface of the third heat dissipation plate 14, the first fixing hole 2 and the second fixing hole 9 are fixedly connected through the pin, the vibration and the impact can be better resisted through the fixed connection of the pin, the stability of the connection is maintained, the middle part of the outer wall of one side of the cathode plate 8 far away from the anode plate 1 is fixedly connected with a plurality of fourth heat dissipation plates 15, the heat dissipation surface area can be increased through the fixed connection of the plurality of fourth heat dissipation plates 15, more heat dissipation surfaces can be provided, the heat can be more rapidly conducted from the cathode plate 8 to the heat dissipation plate and dissipated through the surface of the heat dissipation plate, the first mounting groove 3 and the second mounting groove 10 are tightly attached, the contact area of the connection can be increased through the tightly attached mounting groove, and the stability of the connection can be improved, this helps prevent loosening or disengagement of the connection, ensuring a secure connection of the mounting groove to the fuel cell.
Working principle: the bipolar plate for the fuel cell is provided with a first mounting groove 3 and a second mounting groove 10 through the anode plate 1 and the cathode plate 8, further provided with a vent hole 4 through the first mounting groove 3, and further provided with a first copper plate 11 and a second copper plate 13 fixedly connected with the top surfaces of the first mounting groove 3 and the second mounting groove 10, further provided with a second heat dissipation plate 12 and a third heat dissipation plate 14 fixedly connected with the first copper plate 11 and the second copper plate 13, so that heat generated in the fuel cell can be effectively conducted from the anode plate 1 and the cathode plate 8 to the second heat dissipation plate 12 and the third heat dissipation plate 14 through the excellent heat conductivity of the copper plates, the improvement of the local temperature of the bipolar plate is facilitated to be reduced, the thermal management effect of the fuel cell system is improved, the heat inside the fuel cell can be effectively dispersed, the accumulation of the heat between the anode plate 1 and the cathode plate 8 is avoided, and the temperature gradient of the fuel cell is reduced, this has a positive effect on improving the thermal stability and life of the fuel cell, and in addition, the provision of such a heat dissipating system helps to achieve better heat transfer and heat dispersion, improves heat dissipating efficiency, thereby maintaining the stability of the operating temperature of the fuel cell, and avoiding the performance loss caused by overheating, and by the provision of the fixing plate 5, the stability of the bipolar plate can be increased, displacement or deformation of the bipolar plate during use can be prevented, which helps to ensure the normal operation of the fuel cell system, and reduce damage and malfunction caused by movement of the bipolar plate, and by the provision of the heat dissipating grooves 7 and the first heat dissipating plate 6, the heat outside the bipolar plate can be effectively dissipated, the temperature of the bipolar plate can be maintained within a proper range, the energy conversion efficiency and performance of the fuel cell can be improved, and by the heat outside the bipolar plate, the operating temperature of the bipolar plate can be maintained within an ideal range which helps to avoid performance degradation, damage or reduced life caused by overheating of the bipolar plate.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. Bipolar plate for fuel cells, comprising an anode plate (1), characterized in that: the middle part of the inner wall of one side of the anode plate (1) is provided with a fixing plate (5), one end of the anode plate (1) close to the edge of the fixing plate (5) is provided with a plurality of first mounting grooves (3), and the anode plate (1) close to four corners is provided with first fixing holes (2);
The inner wall of one side of the anode plate (1) is provided with a cathode plate (8), one side of the inner wall of the cathode plate (8) close to the first mounting groove (3) is provided with a plurality of second mounting grooves (10), and the positions of the cathode plate (8) close to four corners are provided with second fixing holes (9).
2. A bipolar plate for a fuel cell according to claim 1, wherein: the middle part of the outer wall of one side of the anode plate (1) is provided with a heat dissipation groove (7), and the middle part of the heat dissipation groove (7) is fixedly connected with a first heat dissipation plate (6).
3. A bipolar plate for a fuel cell according to claim 1, wherein: vent holes (4) are formed in the edge, close to the anode plate (1), of the outer wall of one side of the anode plate (1), and the vent holes (4) are all connected with the first mounting groove in a penetrating mode.
4. A bipolar plate for a fuel cell according to claim 1, wherein: the inner top surface of the first mounting groove (3) is fixedly connected with a first copper plate (11), and the upper surfaces of the first copper plates (11) are fixedly connected with three second heat dissipation plates (12).
5. A bipolar plate for a fuel cell according to claim 1, wherein: the inner top surface of the second mounting groove (10) is fixedly connected with a second copper plate (13), and the upper surfaces of the second copper plates (13) are fixedly connected with two third heat dissipation plates (14).
6. A bipolar plate for a fuel cell according to claim 1, wherein: the first fixing hole (2) and the second fixing hole (9) are fixedly connected through a pin.
7. A bipolar plate for a fuel cell according to claim 1, wherein: the middle part of the outer wall of one side of the cathode plate (8) far away from the anode plate (1) is fixedly connected with a plurality of fourth radiating plates (15).
8. A bipolar plate for a fuel cell according to claim 1, wherein: the first mounting groove (3) is tightly attached to the second mounting groove (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322279568.9U CN220984568U (en) | 2023-08-24 | 2023-08-24 | Bipolar plate for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322279568.9U CN220984568U (en) | 2023-08-24 | 2023-08-24 | Bipolar plate for fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220984568U true CN220984568U (en) | 2024-05-17 |
Family
ID=91060329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322279568.9U Active CN220984568U (en) | 2023-08-24 | 2023-08-24 | Bipolar plate for fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220984568U (en) |
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2023
- 2023-08-24 CN CN202322279568.9U patent/CN220984568U/en active Active
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