CN204720504U - For the bipolar plates of Air flow fuel cell - Google Patents
For the bipolar plates of Air flow fuel cell Download PDFInfo
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- CN204720504U CN204720504U CN201420821174.XU CN201420821174U CN204720504U CN 204720504 U CN204720504 U CN 204720504U CN 201420821174 U CN201420821174 U CN 201420821174U CN 204720504 U CN204720504 U CN 204720504U
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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 kind of bipolar plates for Air flow fuel cell, it comprises a minus plate and a positive plate, wherein this positive plate comprises an anode plate body and at least one heat radiation flank from the extension of this anode plate body, wherein this anode plate body of this positive plate is set up with this minus plate with practising physiognomy opposite, and wherein this heat radiation flank is arranged between an air inlet of a fan of this fuel cell pack and this anode plate body of this positive plate.
Description
Technical field
The utility model relates to a kind of fuel cell (heap), particularly relate to a kind of for fuel cell (heap), as the bipolar plates of Proton Exchange Membrane Fuel Cells (heap), wherein this bipolar plates radiating wing of being configured to make its positive plate to have at least one to contribute to the heat-sinking capability improving proton fuel cell (heap).
Background technology
Fuel cell, if Proton Exchange Membrane Fuel Cells is fuel with hydrogen, by and oxidant, as oxygen, there is redox reaction, the converts chemical energy in fuel become the device of electric energy.The chemical reaction that negative and positive the two poles of the earth of common Proton Exchange Membrane Fuel Cells occur is as follows:
Anode: H2 → 2H2+2e-
Negative electrode: 2H++2e-+1/2O2 → H2O
Overall reaction: H2+1/2O2=H2O
But along with the generation of the electrochemical reaction in fuel cell, some energy can be released with the form of heat energy, especially in the negative electrode side of fuel cell.If these heats can not get discharging timely, fuel pile temperature will be caused too high and affect output performance and the useful life of pile.
Bipolar plates is one of critical component of fuel cell, and it generally plays following effect: 1) as battery conductive body, and individual battery cells is one by one connected to form fuel cell pack; 2) by its runner transfer reaction gas; 3) support structure providing membrane electrode to need.In addition, bipolar plates is also played an important role in the heat radiation of fuel cell (heap).The heat that the bipolar plates of existing fuel cell is designed to help fuel cell (heap) to produce more is derived and is released into the outside of battery unit.
Fuel cell, as Proton Exchange Membrane Fuel Cells mainly contains two kinds of heat management patterns, is respectively liquid medium (common vehicle is water) cooling and gas medium (common vehicle is air) cooling.In general, because the heat transference efficiency of liquid is higher and more easily realize the heat management of pile (battery pile).But inside fuel cell system, employing liquid cooling mode will cause the rising of system complexity and gas cooled pile (battery pile) system configuration relatively simply controls with being easy to.
There is many weak points in the design of the bipolar plates of existing most of fuel cell.Because during operation of fuel cells, the heat of the overwhelming majority produces at negative electrode, therefore, existing a lot of fuel battery double plates has only been considered when being designed to utilize its minus plate to help heat radiation.The fuel cell pack bipolar plates also had, when being designed, by the cooling mechanism focusing on the manufactured materials of bipolar plates too much or be combined with bipolar plates, and ignores the operational environment of fuel cell (heap) bipolar plates itself and bipolar plates.
Application number is the metal double polar plates that the Chinese invention patent of CN200710056414.6 discloses a kind of Sheet Metal Forming Technology and makes.Metal itself possesses good heat conduction and electric conductivity, and therefore metal bipolar plates has good conduction and heat conductivility too.But this metal double polar plates only considers minus plate heat radiation when designing.In addition, the bipolar plates of fuel cell needs long-time running at the high corrosive environment of water, heat, oxygen mix, and the bipolar plates that this metal material is made uses through long high corrosive environment and is easily corroded and is damaged.Although decay resistance and the useful life of bipolar plates can be improved by the mode applying corrosion resistant coating or coating.But the coating processes of corrosion-resistant coating and corrosion-resistant coating itself all can increase the manufacturing cost of bipolar plates.Finally, Sheet Metal Forming Technology means that metal double polar plates needs are formed under effect of stress, and this easily brings fault of construction to metal double polar plates.
Application number be 201210590142.9 Chinese invention patent teach in the middle of a kind of minus plate and positive plate gelled bipolar plates be set, wherein this fin makes to have independently cooling air channel with this bipolar plates.The advantage of this bipolar plates is can fuel cell (heap) radiating requirements, increases or reduces fin quantity, and can not affect the assembling of whole fuel cell (heap).But this bipolar plates needs fin to be formed with independently cooling air channel, and this will inevitably increase the volume and weight of fuel cell (heap), and reduce power-mass ratio and the power to volume ratio of fuel cell (heap).In addition, along with the increase of fin quantity, fuel cell (heap) height change is larger, when whole fuel cell (heap) power output is constant, need constantly to adjust the size of fan (or blower fan), air quantity and air volume adjustment, and cause being difficult to realize fuel cell (heap) actual needs and dispel the heat as required.Further, the existence of fin can increase the difficulty sealed between the minus plate of bipolar plates and positive plate.Finally, the fin as absolute construction also will inevitably increase fuel cell (heap) material and manufacturing cost.
Application number is that 201120447299.7 Chinese utility model patents disclose a kind of bipolar plates for fuel cell (heap), and wherein the minus plate of this bipolar plates and positive plate are equipped with many cooling air channels.This bipolar plates make use of minus plate simultaneously and positive plate dispels the heat.But the minus plate of this bipolar plates and positive plate are all arranged on the back side of minus plate and positive plate for the cooling air channel dispelled the heat.Although this design of this bipolar plates adds the area of dissipation of bipolar plates and can accelerate the heat radiation of fuel cell (heap).But this bipolar plates also has many weak points.First, Air flow runner need be arranged on the back side of minus plate and positive plate, then mean that the thickness of minus plate and positive plate must can meet reacting gas runner and refrigerating gas runner arranges required channel size.In other words, the thickness of minus plate and positive plate is enough thick, two-sidedly arranges reacting gas runner and refrigerating gas runner to meet simultaneously.Which increase the volume and weight of bipolar plates, and reduce power-mass ratio and the power to volume ratio of fuel cell (heap).Secondly, at the minus plate of bipolar plates and the tow sides of positive plate reacting gas runner is set simultaneously and Air flow runner requires that this can increase the manufacturing cost of bipolar plates compared with high manufacturing accuracy and the increase causing manufacturing process difficulty.
Utility model content
Main advantage of the present utility model is that it provides a kind of bipolar plates for Air flow fuel cell (heap), wherein the positive plate of this bipolar plates or minus plate have good heat-sinking capability, and obviously can reduce the temperature of fuel cell (heap).
Main advantage of the present utility model is that it provides a kind of bipolar plates for Air flow fuel cell (heap), wherein the positive plate of this bipolar plates or minus plate have good heat-sinking capability, less heat radiation air quantity can be used to reach same radiating effect with the fuel cell of this bipolar plates of use (heap), thus reduce fan or the energy consumption of blower fan for dispelling the heat of fuel cell (heap).
Another advantage of the present utility model is that it provides a kind of bipolar plates for fuel cell (heap), wherein the positive plate of this bipolar plates or the structure of minus plate are modified, to improve heat-sinking capability when this bipolar plates is used to fuel cell (heap).
Another advantage of the present utility model is that it provides a kind of bipolar plates for fuel cell (heap), and wherein this bipolar plates can increase the heat-sinking capability of fuel cell (heap) when not increasing the height of bipolar plates its thickness and whole fuel cell (heap).In other words, this bipolar plates can when do not increase or the overall volume of not obvious increase fuel cell (heap) significantly improve the heat radiation of fuel cell (heap).
Another advantage of the present utility model is that it provides a kind of bipolar plates for fuel cell (heap), wherein this bipolar plates when not increasing part count and the complicated integral structure of fuel cell (heap), can increase the heat-sinking capability of fuel cell (heap).
Another advantage of the present utility model is that it provides a kind of bipolar plates for Air flow fuel cell (heap), wherein the positive plate of this bipolar plates or minus plate comprise the heat radiation flank between the fan arranging its transverse edge or longitudinal edge and fuel cell (heap) further, and wherein this heat radiation flank stretches out from the plate body of this positive plate or minus plate.
Another advantage of the present utility model is that it provides a kind of bipolar plates for Air flow fuel cell (heap), the heat radiation flank of wherein this bipolar plates is provided with cooling air channel, and wherein this cooling air channel coincides with the path that flows through of heat radiation air draught or parallels.
Another advantage of the present utility model is that it provides a kind of bipolar plates for Air flow fuel cell (heap), and wherein the heat radiation flank of this bipolar plates stretches out from the outer edge of the positive plate of this bipolar plates.
Another advantage of the present utility model is that it provides a kind of bipolar plates for Air flow fuel cell (heap), and wherein the Air flow runner of the heat radiation flank of this bipolar plates and the reacting gas runner of positive plate are spaced from each other.In other words, the Air flow runner of the heat radiation flank of this bipolar plates is separated from each other with the reacting gas runner of positive plate and is not connected.
Another advantage of the present utility model is that it provides a kind of bipolar plates for Air flow fuel cell (heap), the wherein anode plate body of the heat radiation flank of this bipolar plates and the positive plate of this bipolar plates or the minus plate body by integral forming of minus plate.
Another advantage of the present utility model is that it provides a kind of bipolar plates for Air flow fuel cell (heap), wherein the positive plate of this bipolar plates or minus plate comprise one group of heat radiation flank, and wherein this heat radiation flank stretches out from the anode plate body of the positive plate of this bipolar plates or the negative electrode plate body of minus plate respectively and forms a mounting groove assembled for fuel cell (heap) between every two adjacent heat radiation flanks.
Another advantage of the present utility model is that it provides a kind of bipolar plates for Air flow fuel cell (heap), wherein the positive plate of this bipolar plates or minus plate comprise one group of heat radiation flank, and wherein this heat radiation flank can be set up and has different shapes and size as required.
Another advantage of the present utility model is that it provides a kind of bipolar plates for Air flow fuel cell (heap), and wherein the improved anode plate of this bipolar plates or the manufacturing cost of minus plate are compared with before improvement, not significant change.In other words, the positive plate of this modified model bipolar plates or minus plate are compared with the positive plate before improvement or minus plate, and its manufacturing process does not have significant change.
Another advantage of the present utility model is that it provides a kind of bipolar plates for Air flow fuel cell (heap), wherein because the positive plate of this bipolar plates or minus plate have at least one heat radiation flank, therefore this bipolar plates has the heat-dissipating space of at least one this heat radiation flank relatively.
Other advantage of the present utility model and feature are fully demonstrated by following detailed description and combination by the means specially pointed out in claims and device is achieved.
According to the utility model, can realize the bipolar plates of the utility model for Air flow fuel cell of aforementioned object and other objects and advantage, it comprises:
A minus plate, wherein this minus plate is suitable for the negative electrode of reactant distribution to membrane electrode; With
A positive plate, wherein this minus plate is suitable for the anode of reactant distribution to membrane electrode, wherein this minus plate comprises a negative electrode plate body, this positive plate comprises an anode plate body and at least one heat radiation flank from the extension of this anode plate body, and wherein this heat radiation flank is set up and extends between an air inlet of a fan of this fuel cell and this anode plate body of this positive plate.
In certain embodiments, this anode plate body that this positive plate of bipolar plates that the utility model is used for Air flow fuel cell comprises one group of heat radiation flank and this positive plate has two outer lateral edges, wherein this heat radiation flank of this positive plate stretches out from least one this outer lateral edges of this anode plate body of this positive plate respectively, wherein the width of this minus plate is less than this positive plate width, thus make this bipolar plates have at least one heat-dissipating space corresponding with this heat radiation flank of this positive plate, wherein an opening of this heat-dissipating space is towards this air inlet of this fan.
Preferably, this anode plate body of this positive plate has a reactant channel and generates face, this heat radiation flank of this positive plate has a radiating surface, wherein this reactant channel generation face and this radiating surface are positioned at the same side of this positive plate, wherein this anode plate body has the reactant channel that at least one is arranged on this reactant channel generation face, and this heat radiation flank has the fluid cooling duct that a group is arranged on this radiating surface.
More preferably, this fluid cooling duct each is set up and is formed according to its position, thus the flowing through channel of the fluid produced when this fluid cooling duct each can be run with the fan of this fuel cell pack partially overlaps or parallel.
Most preferably, the reactant runner of this anode plate body of this positive plate is spaced from each other with this fluid cooling duct of this heat radiation flank and is not communicated with mutually.
The utility model also provides a kind of bipolar plates for Air flow fuel cell further, and it comprises:
A positive plate, wherein this positive plate is suitable for the anode of reactant distribution to membrane electrode; With
A minus plate, wherein this positive plate is suitable for the negative electrode of reactant distribution to membrane electrode, wherein this positive plate comprises an anode plate body, this minus plate comprises a negative electrode plate body and at least one heat radiation flank from the extension of this negative electrode plate body, and wherein this heat radiation flank is set up and extends between an air inlet of a fan of this fuel cell and this negative electrode plate body of this minus plate.
In further embodiments, this negative electrode plate body that this minus plate comprises one group of heat radiation flank and this minus plate has two outer lateral edges, wherein this heat radiation flank of this minus plate stretches out from least one this outer lateral edges of this negative electrode plate body of this minus plate respectively, wherein the width of this positive plate is less than this minus plate width, thus make this bipolar plates have at least one heat-dissipating space corresponding with this heat radiation flank of this minus plate, wherein an opening of this heat-dissipating space is towards this air inlet of this fan.
Preferably, this negative electrode plate body of this minus plate has a reactant channel and generates face, this heat radiation flank of this minus plate has a radiating surface, wherein this reactant channel generation face and this radiating surface are positioned at the same side of this minus plate, wherein this negative electrode plate body has the reactant channel that at least one is arranged on this reactant channel generation face, and this heat radiation flank has the fluid cooling duct that a group is arranged on this radiating surface.
More preferably, this fluid cooling duct each is set up and is formed according to its position, thus the flowing through channel of the fluid produced when this fluid cooling duct each can be run with the fan of this fuel cell pack partially overlaps or parallel.
Most preferably, the reactant runner of this negative electrode plate body of this minus plate is spaced from each other with this fluid cooling duct of this heat radiation flank and is not communicated with mutually.
By the understanding to description subsequently and accompanying drawing, the further object of the utility model and advantage will be fully demonstrated.
These and other objects of the present utility model, characteristics and advantages, by following detailed description, accompanying drawing and claim are fully demonstrated.
Accompanying drawing explanation
Fig. 1 uses the schematic perspective view according to the fuel cell (heap) of the bipolar plates of the utility model preferred embodiment.
Fig. 2 uses the assembling schematic diagram according to the fuel cell (heap) of the bipolar plates of the utility model preferred embodiment.
Fig. 3 is the schematic perspective view of the bipolar plates according to the utility model preferred embodiment.
Fig. 4 uses the schematic perspective view according to the fan of the fuel cell (heap) of the bipolar plates of the utility model preferred embodiment.
Fig. 5 display be the positive plate of bipolar plates according to the utility model preferred embodiment.
Fig. 6 display be the partial enlarged drawing of the positive plate of bipolar plates according to the utility model preferred embodiment.
Fig. 7 display be implement according to the one of the bipolar plates of the utility model preferred embodiment is equivalent.
Embodiment
Following description is disclosed to make those skilled in the art can manufacture and use the utility model.The preferred embodiment provided in following description is only as the example that it will be apparent to those skilled in the art and amendment, and it does not form the restriction to the utility model scope.The General Principle defined in following description is applied to other embodiment, optionally substitutes with can not deviating from the utility model spirit and utility model scope, amendment, equivalent implement and apply.
Shown in Fig. 1 to Fig. 6 of reference the utility model Figure of description, the bipolar plates for air-cooling type fuel cell (heap) according to the utility model preferred embodiment is illustrated, wherein this bipolar plates comprises a minus plate 10 and a positive plate 20, and wherein this positive plate 20 comprises an anode plate body 21 and at least one heat radiation flank 22 from the extension of this anode plate body 21.In other words, this heat radiation flank 22 of this positive plate 20 is arranged at this anode plate body 21 of this positive plate 20 and stretches out from this anode plate body 21 of this positive plate 20.Preferably, the heat radiation flank 22 of this positive plate 20 of this bipolar plates is one-body molded with this anode plate body 21 of the positive plate 20 of this bipolar plates.More preferably, this anode plate body 21 of this positive plate 20 is set up with this minus plate 10 with practising physiognomy opposite.Most preferably, this minus plate 10 of this bipolar plates and this anode plate body 21 of this positive plate 20 physically contact with each other.
Is an exemplary fuel cell stack 1 as shown in Fig. 1 and Fig. 2 of accompanying drawing, wherein this fuel cell pack 1 comprises a top ends 2, end portion 3, one is mounted on fuel cell 4 between this top ends 2 and this end portion 3 and a heat abstractor, as fan 5, wherein each fuel cell 4 comprises a bipolar plates.Further, a side of this fuel cell pack 1 is located at by the fan 5 of this fuel cell pack 1 and the fuel cell 4 being suitable for this fuel cell pack 1 dispels the heat, fan 5 wherein this fan 5 has an air inlet 50, and the heat radiation flank 22 wherein according to the positive plate 20 of the bipolar plates of the utility model preferred embodiment is set up and extends between this anode plate body 21 of the air inlet 50 of this fan 5 of this fuel cell pack 1 and the positive plate 20 of this bipolar plates.In other words, this heat radiation flank 22 is arranged on this anode plate body 21 of this positive plate 20 and extends out to this air inlet 50 of this fan 5 from this anode plate body 21 of this positive plate 20.Preferably, this positive plate 20 of this bipolar plates comprises multiple heat radiation flank 22, and at least one heat radiation flank 22 is arranged between this anode plate body 21 of the air inlet 50 of this fan 5 and the positive plate 20 of this bipolar plates.More preferably, the heat radiation flank 22 of this bipolar plates is all one-body molded with this anode plate body 21 of the positive plate 20 of this bipolar plates.
As shown in Fig. 5 and Fig. 6 of accompanying drawing, this anode plate body 21 of the positive plate 20 of this bipolar plates has two outer lateral edges 211 and two longitudinal outer rims 212, and wherein at least one respectively in the outer lateral edges 211 of this anode plate body 21 of the positive plate 20 of this bipolar plates and longitudinal outer rim 212 of this heat radiation flank 22 of this positive plate 20 of this bipolar plates stretches out.Preferably, the width W 1 of this minus plate 10 is less than this positive plate 20 width W 2, thus make this bipolar plates have at least one heat-dissipating space corresponding with this heat radiation flank 22 of this positive plate 20 100, wherein an opening 101 of this heat-dissipating space 100 is towards this air inlet 50 of this this fan 5 of fuel cell pack 1.Preferably, this anode plate body 21 of this positive plate 20 can be set up as required, to have various shape, as rectangle, wherein the anode plate body 21 of this positive plate 20 can have one continuous or discontinuous, rule or irregular outer edge.Those skilled in the art are known, and the shape of the outer rim of this anode plate body 21 does not affect the setting of the heat radiation flank 22 of this positive plate 20.
As shown in Fig. 5 and Fig. 6 of accompanying drawing, this anode plate body 21 according to this positive plate 20 of this bipolar plates of the utility model preferred embodiment has a reactant channel and generates face 213, this heat radiation flank 22 of this positive plate 20 has a radiating surface 221, wherein this reactant channel generation face 213 and this radiating surface 221 are positioned at the same side of this positive plate 20, wherein this anode plate body 21 has the reactant channel 2130 that at least one is arranged on this reactant channel generation face 213, with this heat radiation flank 22 each, there is the fluid cooling duct 2210 that a group is arranged on this radiating surface 221.
Further, each fluid cooling duct 2210 of this heat radiation flank 22 is set up according to its position and is formed, thus the flowing through channel of the fluid produced when each fluid cooling duct 2210 can be run with the fan 5 of this fuel cell pack 1 partly or entirely overlaps or parallel.In other words, when the fan 5 of this fuel cell pack 1 runs, this fan 5 of this fuel cell pack 1 can manufacture a negative pressure between the air inlet 50 and the bipolar plates of this fuel cell pack 1 of this fan 5, thus make the coolant between the positive plate 20 of bipolar plates and minus plate 10, as air will form the fluid of the air inlet 50 direction movement to fan 5.In order to can make most possibly the flowing of air more smooth and easy and produce better radiating effect, then the fluid cooling duct 2210 of the heat radiation flank 22 of the positive plate 20 of this bipolar plates needs the flowing through channel of the air-flow produced when running with the fan 5 of this fuel cell pack 1 partially or completely to overlap mutually, or partially or completely parallel mutually, the air-flow produced when running to make the fan 5 of this fuel cell pack 1 is flowed to air inlet 50 direction of fan 5 by the fluid cooling duct 2210 of this heat radiation flank 22 glibly and unimpededly.
Be understandable that, the minus plate 10 according to the bipolar plates of the utility model preferred embodiment does not arrange heat radiation flank or similar means, and therefore, from overall structure, the minus plate 10 of this bipolar plates and the shape of positive plate 20 are also inconsistent.In other words, the shape of this anode plate body 21 of the positive plate 20 of this bipolar plates and the integrative-structure of heat radiation flank 22 formation can be not quite identical with the shape of the minus plate 10 of this bipolar plates.
It should be noted that as shown in Fig. 1 and Fig. 5 of accompanying drawing, every two adjacent heat radiation flanks 22 form a mounting groove 220 be positioned between the two, for the assembling of this fuel cell pack.
As shown in Fig. 5 and Fig. 6 of accompanying drawing, positive plate 20 according to the bipolar plates of the utility model preferred embodiment has the reactant channel 2130 that a group is arranged on this anode plate body 21, and wherein this reactant channel 2130 and the fluid cooling duct 2210 of this heat radiation flank 22 are spaced from each other and are not communicated with mutually.
As shown in Fig. 1 of accompanying drawing, the utility model provides one to comprise a top ends 2 further, end portion 3, one is mounted on fuel cell 4 between this top ends 2 and this end portion 3 and a heat abstractor, and as fan 5, wherein each fuel cell 4 comprises a bipolar plates.Further, a side of this fuel cell pack 1 is located at by the fan 5 of this fuel cell pack 1 and the fuel cell 4 being suitable for this fuel cell pack 1 dispels the heat, fan 5 wherein this fan 5 has an air inlet 50, and the heat radiation flank 22 wherein according to the bipolar plates of the utility model preferred embodiment is set up and extends between this anode plate body 21 of the air inlet 50 of this fan 5 of this fuel cell pack 1 and the positive plate 20 of this bipolar plates.
Shown in Fig. 7 of reference accompanying drawing, the optional enforcement of one according to the bipolar plates of the utility model preferred embodiment is illustrated, wherein this optional enforcement bipolar plates comprises an a positive plate 10A and minus plate 20A, wherein this positive plate 10A comprises an anode plate body 11A, this minus plate 20A comprises a negative electrode plate body 21A and at least one heat radiation flank 22A from this negative electrode plate body 21A extension, and wherein this heat radiation flank 22A is set up and extends between an air inlet 50 of a fan 5 of a fuel cell pack 1 and this negative electrode plate body 21A of this minus plate 20A.
Is an exemplary fuel cell stack 1 as shown in Fig. 1 of accompanying drawing, wherein this fuel cell pack 1 comprises a top ends 2, end portion 3, one is mounted on fuel cell 4 between this top ends 2 and this end portion 3 and a heat abstractor, as fan 5, wherein each fuel cell 4 comprises a bipolar plates.Further, a side of this fuel cell pack 1 is located at by the fan 5 of this fuel cell pack 1 and the fuel cell 4 being suitable for this fuel cell pack 1 dispels the heat, fan 5 wherein this fan 5 has an air inlet 50, and wherein the heat radiation flank 22A of the minus plate 20A of this optional enforcement bipolar plates is set up and extends between this negative electrode plate body 21A of the air inlet 50 of this fan 5 of this fuel cell pack 1 and the minus plate 20A of this bipolar plates.In other words, this heat radiation flank 22A is arranged on this negative electrode plate body 21A of this minus plate 20A and extends out to this air inlet 50 of this fan 5 from this negative electrode plate body 21A of this minus plate 20A.Preferably, this minus plate 20A of this bipolar plates comprises multiple heat radiation flank 22A, and at least one heat radiation flank 22A is arranged between this negative electrode plate body 21A of the air inlet 50 of this fan 5 and the minus plate 20A of this bipolar plates.More preferably, the heat radiation flank 22A of this bipolar plates is all one-body molded with this negative electrode plate body 21A of the minus plate 20A of this bipolar plates.
As shown in Fig. 7 of accompanying drawing, this negative electrode plate body 21A of the minus plate 20A of this bipolar plates has two outer lateral edges 211A and two longitudinal outer rim 212A, and wherein at least one respectively in the outer lateral edges 211A of this negative electrode plate body 21A of the minus plate 20A of this bipolar plates and longitudinal outer rim 212A of this heat radiation flank 22A of this minus plate 20A of this bipolar plates stretches out.Preferably, the width W 1 of this positive plate 10A is less than this minus plate 20A width W 2, thus make this bipolar plates have at least one heat-dissipating space 100A corresponding with this heat radiation flank 22A of this minus plate 20A, wherein an opening 101A of this heat-dissipating space 100A is towards this air inlet 50 of this this fan 5 of fuel cell pack 1.Preferably, this negative electrode plate body 21A of this minus plate 20A can be set up as required, to have various shape, as rectangle, wherein the negative electrode plate body 21A of this minus plate 20A can have one continuous or discontinuous, rule or irregular outer edge.Those skilled in the art are known, and the shape of the outer rim of this negative electrode plate body 21A does not affect the setting of the heat radiation flank 22A of this minus plate 20A.
As shown in Fig. 7 of accompanying drawing, this negative electrode plate body 21A according to this minus plate 20A of optional enforcement bipolar plates has a reactant channel and generates face 213A, this heat radiation flank 22A of this minus plate 20A has a radiating surface 221A, wherein this reactant channel generates the same side that face 213A and this radiating surface 221A is positioned at this minus plate 20A, wherein this negative electrode plate body 21A has the reactant channel 2130A that at least one is arranged on this reactant channel generation face 213A, and each this heat radiation flank 22A has the fluid cooling duct 2210A that a group is arranged on this radiating surface 221A.Further, each fluid cooling duct 2210A of this heat radiation flank 22A is set up according to its position and is formed, thus the flowing through channel of the fluid produced when each fluid cooling duct 2210A can be run with the fan 5 of this fuel cell pack 1 partly or entirely overlaps or parallel.In other words, when the fan 5 of this fuel cell pack 1 runs, this fan 5 of this fuel cell pack 1 can manufacture a negative pressure between the air inlet 50 and the bipolar plates of this fuel cell pack 1 of this fan 5, thus make the coolant between the minus plate 20A of bipolar plates and positive plate 10A, as air will form the fluid of the air inlet 50 direction movement to fan 5.In order to can make most possibly the flowing of air more smooth and easy and produce better radiating effect, then the fluid cooling duct 2210A of the heat radiation flank 22A of the minus plate 20A of this bipolar plates needs the flowing through channel of the air-flow produced when running with the fan 5 of this fuel cell pack 1 partially or completely to overlap mutually, or partially or completely parallel mutually, the air-flow produced when running to make the fan 5 of this fuel cell pack 1 is flowed to air inlet 50 direction of fan 5 by the fluid cooling duct 2210A of this heat radiation flank 22A glibly and unimpededly.
Be understandable that, the positive plate 10A of this optional enforcement bipolar plates does not arrange heat radiation flank or similar means, and therefore, from overall structure, the positive plate 10A of this bipolar plates and the shape of minus plate 20A are also inconsistent.In other words, the shape of this negative electrode plate body 21A of the minus plate 20A of this bipolar plates and the integrative-structure of heat radiation flank 22A formation can be not quite identical with the shape of the positive plate 10A of this bipolar plates.
As shown in Fig. 7 of accompanying drawing, the minus plate 20A of this optional enforcement bipolar plates has the reactant channel 2130A that a group is arranged on this negative electrode plate body 21A, and wherein this reactant channel 2130A is spaced from each other with the fluid cooling duct 2210A of this heat radiation flank 22A and is not communicated with mutually.
It should be noted that the utility model also provides a kind of use according to the bipolar plates of the utility model preferred embodiment or its equivalent fuel cell (heap) implemented.
Being understandable that, the air that air possibility occurring in nature herein exists, also can be that other can be used in the suitable fluid medium of fuel cell (heap) heat radiation or cooling.Therefore, Air flow fuel cell (heap) herein refers in fact the fuel cell (heap) using suitable substance as coolant.
Those skilled in the art can understand shown in accompanying drawing to be only to example of the present utility model instead of restriction with the utility model embodiment described above.
Can see that the utility model object can fully effectively be completed thus.For explaining that this embodiment of the utility model function and structure principle has been absolutely proved and described, and the utility model is not by the restriction based on the change on these embodiment basis.Therefore, the utility model comprises all modifications be encompassed within appended claims book claimed range and spirit.
Claims (24)
1. for a bipolar plates for Air flow fuel cell, it is characterized in that, comprising:
A minus plate, wherein said minus plate is suitable for the negative electrode of reactant distribution to membrane electrode; With
A positive plate, wherein said minus plate is suitable for the anode of reactant distribution to membrane electrode, wherein said minus plate comprises a negative electrode plate body, described positive plate comprises an anode plate body and at least one heat radiation flank extended from described anode plate body, and wherein said heat radiation flank is set up and extends between an air inlet of a fan of described fuel cell and the described anode plate body of described positive plate.
2. bipolar plates according to claim 1, the described anode plate body that wherein said positive plate comprises one group of heat radiation flank and described positive plate has two outer lateral edges, the described heat radiation flank of wherein said positive plate respectively from the described anode plate body of described positive plate at least one described in outer lateral edges stretch out, the width of wherein said minus plate is less than described positive plate width, thus make described bipolar plates have at least one heat-dissipating space corresponding with the described heat radiation flank of described positive plate, an opening of wherein said heat-dissipating space is towards the described air inlet of described fan.
3. bipolar plates according to claim 1, the described anode plate body of wherein said positive plate has a reactant channel and generates face, the described heat radiation flank of described positive plate has a radiating surface, wherein said reactant channel generation face and described radiating surface are positioned at the same side of described positive plate, wherein said anode plate body has at least one and is arranged on the reactant channel that described reactant channel generates face, and described heat radiation flank has the fluid cooling duct that a group is arranged on described radiating surface.
4. bipolar plates according to claim 2, the described anode plate body of wherein said positive plate has a reactant channel and generates face, the described heat radiation flank of described positive plate has a radiating surface, wherein said reactant channel generation face and described radiating surface are positioned at the same side of described positive plate, wherein said anode plate body has at least one and is arranged on the reactant channel that described reactant channel generates face, and described heat radiation flank has the fluid cooling duct that a group is arranged on described radiating surface.
5. bipolar plates according to claim 3, wherein each described fluid cooling duct is set up and is formed according to its position, thus the flowing through channel of the fluid produced when each described fluid cooling duct can be run with the fan of described fuel cell pack partially overlaps or parallel.
6. bipolar plates according to claim 4, wherein each described fluid cooling duct is set up and is formed according to its position, thus the flowing through channel of the fluid produced when each described fluid cooling duct can be run with the fan of described fuel cell pack partially overlaps or parallel.
7. bipolar plates according to claim 3, the reactant runner reactant of the described anode plate body of wherein said positive plate is spaced from each other with the described fluid cooling duct of described heat radiation flank and is not communicated with mutually.
8. bipolar plates according to claim 6, the described fluid cooling duct that wherein said positive plate has the reactant runner and described heat radiation flank that a group is arranged on described anode plate body is spaced from each other and is not communicated with mutually.
9. bipolar plates according to claim 2, wherein every two the adjacent wing one-tenth of heat radiation side mounting grooves be positioned between the two, for the assembling of described fuel cell pack.
10. bipolar plates according to claim 8, wherein every two the adjacent wing one-tenth of heat radiation side mounting grooves be positioned between the two, for the assembling of described fuel cell pack.
11. bipolar plates according to claim 1, the described heat radiation flank of wherein said positive plate and the described positive plate body by integral forming of described positive plate.
12. bipolar plates according to claim 10, each described heat radiation flank of wherein said positive plate and the described positive plate body by integral forming of described positive plate.
13. 1 kinds for the bipolar plates of Air flow fuel cell, is characterized in that, comprising:
A positive plate, wherein said positive plate is suitable for the anode of reactant distribution to membrane electrode; With
A minus plate, wherein said positive plate is suitable for the negative electrode of reactant distribution to membrane electrode, wherein said positive plate comprises an anode plate body, described minus plate comprises a negative electrode plate body and at least one heat radiation flank extended from described negative electrode plate body, and wherein said heat radiation flank is set up and extends between an air inlet of a fan of described fuel cell and the described negative electrode plate body of described minus plate.
14. bipolar plates according to claim 13, the described negative electrode plate body that wherein said minus plate comprises one group of heat radiation flank and described minus plate has two outer lateral edges, the described heat radiation flank of wherein said minus plate respectively from the described negative electrode plate body of described minus plate at least one described in outer lateral edges stretch out, the width of wherein said positive plate is less than described minus plate width, thus make described bipolar plates have at least one heat-dissipating space corresponding with the described heat radiation flank of described minus plate, an opening of wherein said heat-dissipating space is towards the described air inlet of described fan.
15. bipolar plates according to claim 13, the described negative electrode plate body of wherein said minus plate has a reactant channel and generates face, the described heat radiation flank of described minus plate has a radiating surface, wherein said reactant channel generation face and described radiating surface are positioned at the same side of described minus plate, wherein said negative electrode plate body has at least one and is arranged on the reactant channel that described reactant channel generates face, and described heat radiation flank has the fluid cooling duct that a group is arranged on described radiating surface.
16. bipolar plates according to claim 14, the described negative electrode plate body of wherein said minus plate has a reactant channel and generates face, the described heat radiation flank of described minus plate has a radiating surface, wherein said reactant channel generation face and described radiating surface are positioned at the same side of described minus plate, wherein said negative electrode plate body has at least one and is arranged on the reactant channel that described reactant channel generates face, and described heat radiation flank has the fluid cooling duct that a group is arranged on described radiating surface.
17. bipolar plates according to claim 15, wherein each described fluid cooling duct is set up and is formed according to its position, thus the flowing through channel of the fluid produced when each described fluid cooling duct can be run with the fan of described fuel cell pack partially overlaps or parallel.
18. bipolar plates according to claim 16, wherein each described fluid cooling duct is set up and is formed according to its position, thus the flowing through channel of the fluid produced when each described fluid cooling duct can be run with the fan of described fuel cell pack partially overlaps or parallel.
19. bipolar plates according to claim 15, the reactant runner reactant of the described negative electrode plate body of wherein said minus plate is spaced from each other with the described fluid cooling duct of described heat radiation flank and is not communicated with mutually.
20. bipolar plates according to claim 18, the described fluid cooling duct that wherein said minus plate has the reactant runner and described heat radiation flank that a group is arranged on described negative electrode plate body is spaced from each other and is not communicated with mutually.
21. bipolar plates according to claim 14, wherein every two the adjacent wing one-tenth of described heat radiation side mounting grooves be positioned between the two, for the assembling of described fuel cell pack.
22. bipolar plates according to claim 20, wherein every two the adjacent wing one-tenth of described heat radiation side mounting grooves be positioned between the two, for the assembling of described fuel cell pack.
23. bipolar plates according to claim 13, the described heat radiation flank of wherein said minus plate and the described minus plate body by integral forming of described minus plate.
24. bipolar plates according to claim 22, each described heat radiation flank of wherein said minus plate and the described minus plate body by integral forming of described minus plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821174.XU CN204720504U (en) | 2014-12-22 | 2014-12-22 | For the bipolar plates of Air flow fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821174.XU CN204720504U (en) | 2014-12-22 | 2014-12-22 | For the bipolar plates of Air flow fuel cell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098198A (en) * | 2014-12-22 | 2015-11-25 | 武汉众宇动力系统科技有限公司 | Bipolar plate for fuel cell |
| CN110459780A (en) * | 2019-07-25 | 2019-11-15 | 南方科技大学 | Fuel cell bipolar plate and fuel cell |
-
2014
- 2014-12-22 CN CN201420821174.XU patent/CN204720504U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098198A (en) * | 2014-12-22 | 2015-11-25 | 武汉众宇动力系统科技有限公司 | Bipolar plate for fuel cell |
| CN110459780A (en) * | 2019-07-25 | 2019-11-15 | 南方科技大学 | Fuel cell bipolar plate and fuel cell |
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