CN201853769U - Bipolar plate of air cooling type proton exchange membrane fuel cell - Google Patents
Bipolar plate of air cooling type proton exchange membrane fuel cell Download PDFInfo
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- CN201853769U CN201853769U CN2010206064790U CN201020606479U CN201853769U CN 201853769 U CN201853769 U CN 201853769U CN 2010206064790 U CN2010206064790 U CN 2010206064790U CN 201020606479 U CN201020606479 U CN 201020606479U CN 201853769 U CN201853769 U CN 201853769U
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- air
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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 utility model provides a bipolar plate of an air cooling type proton exchange membrane fuel cell, in which the gas is reliably sealed, the material cost and the machining cost are low, and the assembly difficulty of the cell is low, so that the performance of the cell is further guaranteed. One surface of the bipolar plate is a negative pole surface, and the other surface of the bipolar plate is an anode pole surface. The bipolar plate is characterized in that the negative pole surface is provided with a negative pole seal groove cavity, an air parallel straightaway is packed by the negative pole seal groove cavity, the air parallel straightaway is communicated with the outer air by two air inlet straight grooves at two sides, and the air inlet straight grooves are arranged at the inner side of the depth direction of the negative pole seal groove cavity; and two ends of the anode pole surface are respectively provided with a through hole, the anode pole surface is provided with a hydrogen flow passageway, the anode pole surface is provided with an anode seal groove cavity, the anode seal groove cavity respectively and independently encloses the two through holes and the hydrogen flow passageway, the inner sides of the two through holes are respectively provided with a conduction groove communicated with the hydrogen flow passageway, and the conduction groove is arranged at the inner side of the depth direction of the anode seal groove cavity.
Description
Technical field
The utility model relates to air-cooled proton exchange membrane fuel cell structure technical field, and it is specially a kind of air-cooled dual polar plates of proton exchange membrane fuel cell.
Background technology
Proton Exchange Membrane Fuel Cells is that a kind of hydrogen that adopts is that fuel, airborne oxygen are the Blast Furnace Top Gas Recovery Turbine Unit (TRT) of oxidant, because the electrochemical reaction mechanism of fuel cell, can make it not be subjected to the restriction of your cycle efficieny of Kano, therefore, Proton Exchange Membrane Fuel Cells has characteristics such as efficient height, environmental friendliness.
The main feature of air-cooled Proton Exchange Membrane Fuel Cells is that blower fan is discharged the heat of fuel battery inside in for fuel cell supply air, the above-mentioned characteristic of air-cooled Proton Exchange Membrane Fuel Cells makes the designs simplification of system, thus the emergency power supply that is particularly suitable for as the small portable power supply or needs to start fast.
In order to reduce the flow resistance of blower fan, the cathode flow field of air-cooled dual polar plates of proton exchange membrane fuel cell is usually designed to the parallel straight way that communicates with atmosphere, axial flow blower is blown into parallel straight way with air from one side of bipolar plates cathode flow field, and air carries heat and is discharged from battery from the another side of cathode flow field after reaction.Air-cooled fuel battery cathode with proton exchange film flow field is seen always recessed at the parallel straight way of air from its side, muscle place epirelief between the parallel straight way of air, based on this, on the bipolar plates cathode plane, can not be processed to form the continuous seal groove, thereby make the air-cooled Proton Exchange Membrane Fuel Cells can not use silicon rubber linear sealing structure, and must adopt surface seal structure, but the material of face seal is generally the glass fabric of polytetrafluoroethylene or coating polytetrafluoroethylene etc., its intensity is relatively poor, under the effect of fuel cell pretightning force, be extruded easily distortion and be collapsed upon in the straight way at the parallel straight way of the air of cathode flow field place, thereby make sealing difficulty, cause the mutual string of air and hydrogen and leak outside.
China Patent No. ZL 200610035283.9, Granted publication day 2008.09.03, patent name is " a kind of proton exchange membrane fuel cell plate that contains combined flow channel ", provided a kind of new air-cooled dual polar plates of proton exchange membrane fuel cell, it discloses and a kind ofly can improve the fuel battery pole board drainage performance, make the stable proton exchange membrane fuel cell plate that contains combined flow channel of fuel cell operation, its cathode plate is to be provided with by parallel fluid channels and the two-in-one pole plate that is combined to form combined flow channel of matrix through hole, and its plate is the pole plate that is provided with the runner that crawls; Wherein said parallel fluid channels is parallel heat radiation, intake and exhaust runner, runs through the cathode plate two ends, and described through hole is distributed on the groove of parallel fluid channels.One side at the pole plate edge of described fuel cell or also be provided with parallel thorn sheet all around.Pole plate of the present utility model can be used for making miniature and small fuel cell, this technology is by being divided into bipolar plates cathode plate and plate, matrix through hole face processing continuous seal groove at cathode plate, thereby make this bipolar plates can adopt silicon rubber linear sealing structure, solved the face seal material because intensity difference is collapsed upon the shortcoming that causes seal failure in the parallel straight way of air after being extruded distortion.
But said structure needs to make separately cathode plate, plate, and this must increase processing cost and material cost, has also increased the man-hour of fuel cell assembling; Secondly, the combining structure of parallel straight way of the air of cathode plate and matrix through hole is very complicated, thereby has further increased difficulty of processing and manufacturing cost; Once more, the structure of parallel straight way of the air of cathode plate and matrix through hole makes the air that is imported by the parallel straight way of air directly not contact with the membrane electrode of fuel cell, and must diffuse to membrane electrode by the reallocation of matrix through hole, thereby increase the resistance to mass tranfer of air greatly, influence the performance of battery.
Summary of the invention
At the problems referred to above, the utility model provides a kind of air-cooled dual polar plates of proton exchange membrane fuel cell, and it makes air seal reliable, and material and processing cost is low, the assembly difficulty of battery is low, and then guarantees the performance of battery.
A kind of air-cooled dual polar plates of proton exchange membrane fuel cell, its technical scheme is such: the one side of bipolar plates is that negative electrode pole-face, another side are the anode pole-face, it is characterized in that: described negative electrode pole-face has negative electrode seal groove cavity, the parallel straight way of described negative electrode seal groove cavity parcel air, the parallel straight way of described air is communicated with extraneous air by the air inlet straight trough of both sides, and described air inlet straight trough is positioned at the inboard of described negative electrode seal groove cavity thickness direction; The two ends of described anode pole-face have through hole, described anode pole-face has the hydrogen runner, described anode pole-face has the anode seal slot cavity body, described anode seal slot cavity body surrounds two through holes, hydrogen runner separately respectively, two described through hole inboards have conduction trough and are communicated with described hydrogen runner, and described conduction trough is positioned at the inboard of described anode seal slot cavity body thickness direction.
It is further characterized in that: the core of described negative electrode pole-face has the parallel straight way of described air, the both sides indent of described negative electrode pole-face, the both sides female parts has the described air inlet straight trough that communicates with the parallel straight way of described air, both sides female parts loam cake is equipped with the negative electrode dummy slider, described negative electrode dummy slider has the negative electrode seal groove, the other both sides of described negative electrode pole-face have through hole, have the negative electrode seal groove around the described through hole, negative electrode seal groove around the described through hole, the negative electrode seal groove of negative electrode dummy slider is interconnected and becomes integral body, it is described negative electrode seal groove cavity, and the cooperation of negative electrode silicone-rubber seals is nested in described negative electrode seal groove cavity;
The core of described anode pole-face has described hydrogen runner, the through hole inner part indent of described anode pole-face, described female parts has described conduction trough and is communicated with described hydrogen runner and through hole, the cooperation of anode dummy slider is installed on described female parts, described anode dummy slider has the anode seal groove, have the anode seal groove around the described anode pole-face, described through hole is positioned at the inside of the anode seal groove around the described anode surface, the anode seal groove of described anode dummy slider, anode seal groove around the described anode pole-face is interconnected and becomes integral body, it is described anode seal slot cavity body, and the cooperation of anode gel seal is nested in described anode seal slot cavity body;
It further is characterised in that: described negative electrode seal groove cavity, anode seal slot cavity body shape are identical, and described negative electrode silicone-rubber seals, anode gel seal are identical silicone-rubber seals.
After adopting structure of the present utility model, the material and the processing cost of bipolar plates are low; Get two bipolar plates, between the anode pole-face of the negative electrode pole-face of a slice bipolar plates and another sheet bipolar plates, membrane electrode is installed, and seal by the negative electrode silicone-rubber seals of a slice bipolar plates and the anode gel seal of another sheet bipolar plates respectively, because the air inlet straight trough of conducting air is positioned at the inboard of negative electrode seal groove cavity thickness direction, air can enter the parallel straight way of air smoothly, and connecting through hole, the conduction trough of hydrogen runner is positioned at the inboard of described anode seal slot cavity body thickness direction, hydrogen can enter from one of them through hole, successfully flow out another through hole after the reaction then, the silicone-rubber seals sealing makes air seal reliable, guarantees the performance of battery; The parallel straight way of air makes air directly contact with the membrane electrode of fuel cell, reduces the resistance to mass tranfer of air, thereby further guarantees the performance of battery.
Description of drawings
Fig. 1 is the assembly structure schematic isometric of negative electrode pole-face of the present utility model;
Fig. 2 is the assembly structure schematic isometric of anode pole-face of the present utility model;
Fig. 3 is the assembling schematic isometric of bipolar plates of the present utility model and membrane electrode.
Embodiment
Embodiment: see Fig. 1, Fig. 2, Fig. 3, four jiaos of bipolar plates 1 have location hole 2, bipolar plates 1 one side is a negative electrode pole-face 3, another side is an anode pole-face 4, the core of negative electrode pole-face 3 has the parallel straight way 5 of air, the both sides of negative electrode pole-face 3 are female parts 6, both sides female parts 6 has the air inlet straight trough 7 that parallel straight way 5 with air communicates, female parts 6 loam cakes in both sides are equipped with negative electrode dummy slider 9, negative electrode dummy slider 9 has negative electrode seal groove 8, the other both sides of negative electrode pole-face 3 have through hole 10, have negative electrode seal groove 11 around the through hole 10, negative electrode seal groove 11 around the through hole 10, the negative electrode seal groove 8 of negative electrode dummy slider 9 is interconnected and becomes integral body, the negative electrode seal groove cavity that it is, 12 cooperations of negative electrode silicone-rubber seals are nested in negative electrode seal groove cavity;
The core of anode pole-face 4 has hydrogen runner 13, the through hole 10 inner part indents of anode pole-face 4, female parts 14 has conduction trough 15 and is communicated with hydrogen runner 13 and through hole 10,16 cooperations of anode dummy slider are installed on female parts 14, anode dummy slider 16 has anode seal groove 17, have anode seal groove 18 around the anode pole-face 4, through hole 10 is positioned at the inside of the anode seal groove 18 around the anode surface 4, the anode seal groove 17 of anode dummy slider 16, anode seal groove 18 around the anode pole-face 4 is interconnected and becomes integral body, the anode seal slot cavity body that it is, 19 cooperations of anode gel seal are nested in the anode seal slot cavity body.
During assembling, with inserting membrane electrode 20 between the anode pole-face plate face 4 of the negative electrode pole-face 3 of a slice bipolar plates and another sheet bipolar plates, by pretightning force the three is fitted tightly then, wherein membrane electrode 20 has through hole 21 corresponding to the position of through hole 10.
Claims (4)
1. air-cooled dual polar plates of proton exchange membrane fuel cell, the one side of bipolar plates is that negative electrode pole-face, another side are the anode pole-face, it is characterized in that: described negative electrode pole-face has negative electrode seal groove cavity, the parallel straight way of described negative electrode seal groove cavity parcel air, the parallel straight way of described air is communicated with extraneous air by the air inlet straight trough of both sides, and described air inlet straight trough is positioned at the inboard of described negative electrode seal groove cavity thickness direction; The two ends of described anode pole-face have through hole, described anode pole-face has the hydrogen runner, described anode pole-face has the anode seal slot cavity body, described anode seal slot cavity body surrounds two through holes, hydrogen runner separately respectively, two described through hole inboards have conduction trough and are communicated with described hydrogen runner, and described conduction trough is positioned at the inboard of described anode seal slot cavity body thickness direction.
2. a kind of air-cooled dual polar plates of proton exchange membrane fuel cell according to claim 1, it is characterized in that: the core of described negative electrode pole-face has the parallel straight way of described air, the both sides indent of described negative electrode pole-face, the both sides female parts has the described air inlet straight trough that communicates with the parallel straight way of described air, both sides female parts loam cake is equipped with the negative electrode dummy slider, described negative electrode dummy slider has the negative electrode seal groove, the other both sides of described negative electrode pole-face have through hole, have the negative electrode seal groove around the described through hole, negative electrode seal groove around the described through hole, the negative electrode seal groove of negative electrode dummy slider is interconnected and becomes integral body, it is described negative electrode seal groove cavity, and the cooperation of negative electrode silicone-rubber seals is nested in described negative electrode seal groove cavity.
3. a kind of air-cooled dual polar plates of proton exchange membrane fuel cell according to claim 1 and 2, it is characterized in that: the core of described anode pole-face has described hydrogen runner, the through hole inner part indent of described anode pole-face, described female parts has described conduction trough and is communicated with described hydrogen runner and through hole, the cooperation of anode dummy slider is installed on described female parts, described anode dummy slider has the anode seal groove, have the anode seal groove around the described anode pole-face, described through hole is positioned at the inside of the anode seal groove around the described anode surface, the anode seal groove of described anode dummy slider, anode seal groove around the described anode pole-face is interconnected and becomes integral body, it is described anode seal slot cavity body, and the cooperation of anode gel seal is nested in described anode seal slot cavity body.
4. a kind of air-cooled dual polar plates of proton exchange membrane fuel cell according to claim 3, it is characterized in that: described negative electrode seal groove cavity, anode seal slot cavity body shape are identical, and described negative electrode silicone-rubber seals, anode gel seal are identical silicone-rubber seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206064790U CN201853769U (en) | 2010-11-15 | 2010-11-15 | Bipolar plate of air cooling type proton exchange membrane fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206064790U CN201853769U (en) | 2010-11-15 | 2010-11-15 | Bipolar plate of air cooling type proton exchange membrane fuel cell |
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| CN201853769U true CN201853769U (en) | 2011-06-01 |
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| CN2010206064790U Expired - Fee Related CN201853769U (en) | 2010-11-15 | 2010-11-15 | Bipolar plate of air cooling type proton exchange membrane fuel cell |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683716A (en) * | 2012-04-24 | 2012-09-19 | 无锡国赢科技有限公司 | Bipolar plate membrane electrode assembly |
| CN106876744A (en) * | 2017-03-19 | 2017-06-20 | 李忠 | Hydrogen fuel cell, automobile and unmanned plane |
| CN110431699A (en) * | 2017-03-02 | 2019-11-08 | 沙特阿拉伯石油公司 | Novel modularized electrochemical cell and stack design |
-
2010
- 2010-11-15 CN CN2010206064790U patent/CN201853769U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683716A (en) * | 2012-04-24 | 2012-09-19 | 无锡国赢科技有限公司 | Bipolar plate membrane electrode assembly |
| CN102683716B (en) * | 2012-04-24 | 2014-10-08 | 无锡国赢科技有限公司 | Bipolar plate membrane electrode assembly |
| CN110431699A (en) * | 2017-03-02 | 2019-11-08 | 沙特阿拉伯石油公司 | Novel modularized electrochemical cell and stack design |
| CN106876744A (en) * | 2017-03-19 | 2017-06-20 | 李忠 | Hydrogen fuel cell, automobile and unmanned plane |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20161115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |