CN112331881A - Modularized air cooling heat dissipation plate suitable for air cooling type proton exchange membrane fuel cell - Google Patents
Modularized air cooling heat dissipation plate suitable for air cooling type proton exchange membrane fuel cell Download PDFInfo
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- CN112331881A CN112331881A CN202011118501.1A CN202011118501A CN112331881A CN 112331881 A CN112331881 A CN 112331881A CN 202011118501 A CN202011118501 A CN 202011118501A CN 112331881 A CN112331881 A CN 112331881A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/028—Sealing means characterised by their material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2457—Grouping of fuel cells, e.g. stacking of fuel cells with both reactants being gaseous or vaporised
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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 invention provides a modularized air cooling heat dissipation plate suitable for an air cooling type proton exchange membrane fuel cell, relates to the technical field of PEM fuel cells, has strong conductive performance, good heat dissipation effect and excellent sealing performance of reaction gas, and can achieve the purposes of reducing the cost and weight of a bipolar plate and enhancing the reliability of a PEM fuel cell system; the heat dissipation plate comprises an air cooling runner module and two main runner modules, wherein the air cooling runner module is a direct-current runner type conductive thin plate, and the two main runner modules are respectively arranged at two ends of the air cooling runner module; the main runner module is provided with a main runner through hole for forming a main runner; the section is in a sine wave shape, a square wave shape or a sawtooth wave shape; the whole thickness of the conductive thin plate is 1-3 mm, and the thickness of the conductive thin plate is 0.1-1 mm. The technical scheme provided by the invention is suitable for the heat dissipation process of the PEM fuel cell.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of PEM fuel cells, in particular to a modularized air-cooling heat dissipation plate suitable for an air-cooling proton exchange membrane fuel cell.
[ background of the invention ]
Hydrogen energy technology has been supported by great efforts in the country in recent years, and PEM fuel cells are an important component of hydrogen energy technology. At present, PEM fuel cells can be divided into a water-cooling type and an air-cooling type according to different heat dissipation media, and the water-cooling type PEM fuel cells are mainly used in high-power occasions, such as the field of vehicle-mounted fuel cells, and have good heat dissipation effect, but large volume and complex system; the air-cooled PEM fuel cell is mainly used in low-power supply systems, especially in some scenes with strict requirements on the volume and the weight of the system, such as fuel cells for unmanned aerial vehicles, and has the advantages of simple structure, low cost, light weight and the like. In the design of the bipolar plate of the air cooling type PEM fuel cell, the air cooling heat dissipation plate is one of the keys, and the PEM fuel cell system with good air cooling effect, light weight and high system safety is realized by researching the materials and the shapes of all parts of the air cooling heat dissipation plate.
The main components of the air-cooled PEM fuel cell include a membrane electrode, a bipolar plate, and the like. The bipolar plate has the functions of supporting and fixing the fuel cell assembly, transferring current, conducting heat and transferring mass, and also comprises a cathode plate, an anode plate and a cooling heat dissipation plate. The anode and cathode plates are respectively provided with oxygen and hydrogen flow channels with the functions of mass transfer, electricity transfer and heat transfer; the cooling heat dissipation plate can transfer and gather current among the single cells and accelerate the passing of air cooling airflow to promote the heat dissipation of the system.
The current bipolar plate research focuses on materials and structures, the materials include preparation of various substrates and selection of anticorrosive coatings, and the structural research mainly lies in the design of flow field structures. The research on heat dissipation plates has mainly focused on water-cooling type PEM fuel cells, while relatively little has been done in the field of air-cooling type PEM fuel cells with regard to the design or research on cooling heat dissipation plates.
The invention patent with publication number CN111276711A proposes an air flow channel assembly formed by combining two staggered and overlapped air flow channels, and the scheme of combining the two staggered and overlapped air flow channels improves the mass transfer efficiency of air and effectively improves the efficiency of fuel cell stack. However, in a slightly more powerful fuel cell stack, this design may result in insufficient stack heat dissipation capacity due to the absence of a separate air-cooled gas flow path.
A fuel cell air-cooled stack cathode plate and bipolar plate is proposed in utility model patent No. CN 208722996U. The cathode plate runner is formed by two or more times of punching, the cross section of the manufactured cathode runner is in a step shape, the limit of the punching depth of the runner in the traditional technology is broken through, and the cross section areas of the cooling air runner and the reaction air runner are greatly improved. However, the main flow channel of the anode has a problem of poor sealing performance, which may cause leakage of the anode fuel gas, and thus has certain potential safety hazards.
The utility model with the publication number of CN210805927U proposes a fuel cell bipolar plate with different structures including a multi-stage reaction zone flow field and cathode and anode side flow fields, which effectively avoids the possible short circuit condition during the fluid flow process and is beneficial to the discharge of the water produced by the cathode side reaction. However, the multi-stage reaction zone does not adopt a modularized separation design, the processing technology is complex, and the polar plate is difficult to form.
Therefore, there is a need to develop a modular air-cooled heat sink for an air-cooled pem fuel cell that addresses the deficiencies of the prior art and solves or mitigates one or more of the problems set forth above.
[ summary of the invention ]
In view of the above, the invention provides a modular air-cooled heat sink plate suitable for an air-cooled proton exchange membrane fuel cell, which has the advantages of strong conductivity, good heat dissipation effect and excellent sealing performance of reaction gas, and can achieve the purposes of reducing the cost and weight of a bipolar plate and enhancing the reliability of a PEM fuel cell system.
On one hand, the invention provides a modular air-cooling heat dissipation plate which is characterized by comprising an air-cooling runner module and two main runner modules, wherein the air-cooling runner module is a direct-current-channel conductive thin plate, and the two main runner modules are respectively arranged at two ends of the air-cooling runner module; the main runner module is provided with a main runner through hole for forming a main runner; the main flow passage through holes are matched with the main flow passage through holes on other structures overlapped with the heat dissipation plate.
The above aspect and any possible implementation further provide an implementation that the conductive thin plate has a cross-sectional shape of a sine wave, a square wave, or a sawtooth wave.
The above aspect and any possible implementation manner further provide an implementation manner, wherein the material thickness of the conductive thin plate is 0.1-1 mm, and the overall thickness of the cross section of the whole air-cooling flow channel is 1-3 mm.
In the aspect and any possible implementation manner described above, an implementation manner is further provided, in which the main runner module is made of a sealing material, and two main runner through holes with different sizes are formed in the middle of the sealing material.
The above aspects and any possible implementation manners further provide an implementation manner, and the material of the conductive thin plate is any one of aluminum alloy, graphite, stainless steel or other conductive materials.
The above aspect and any possible implementation further provide an implementation in which the sealing material of the primary flow channel module is a high-temperature resistant elastic insulating material.
In accordance with the above aspect and any one of the possible implementation manners, there is further provided an implementation manner in which the air-cooling runner module and the main runner module are connected by bonding or clamping.
The above aspects and any possible implementations further provide an implementation in which the primary runner module is of a unitary or split structure.
In accordance with the above aspect and any possible implementation manner, there is further provided an implementation manner, in which the heat dissipation plate is provided with positioning holes for positioning during installation.
In another aspect, the present invention provides a bipolar plate suitable for an air-cooled pem fuel cell, wherein the bipolar plate comprises a cathode plate, a heat dissipation plate and an anode plate, which are sequentially stacked, wherein the heat dissipation plate is a modular air-cooled heat dissipation plate as described above; and the cathode plate and the anode plate are respectively provided with a main runner through hole which is matched with the main runner through hole on the heat dissipation plate. And the negative plate and the positive plate are respectively provided with a positioning hole matched with the positioning hole on the heat dissipation plate.
There is further provided in accordance with any one of the possible implementations of the above aspects, an implementation in which the connection between the cathode plate and the modular air-cooled heat sink plate and between the modular air-cooled heat sink plate and the anode plate is by bonding or physical contact.
The above aspects and any possible implementation manners further provide an implementation manner, and the material of the cathode plate and the anode plate is any one of a metal plate plated with an anti-corrosion conductive coating, a graphite plate and a composite plate with conductivity.
In a third aspect, the present invention provides a PEM fuel cell stack, wherein said PEM fuel cell stack comprises a plurality of fuel cell units; the fuel cell unit adopts the modularized air-cooled heat dissipation plate.
The above aspects and any possible implementation manners further provide an implementation manner, where the fuel cell unit is a layered structure, and sequentially includes the cathode plate, the cathode sealing ring, the membrane electrode, the anode sealing ring, the anode plate, and the modular air-cooled heat dissipation plate; as described above, the modular air-cooled heat sink plate is disposed between the anode plate and the cathode plate (of another adjacent fuel cell unit) to form a sandwich structure, which together form the bipolar plate. And the cathode plate, the cathode sealing ring, the membrane electrode, the anode sealing ring and the anode plate are respectively provided with a main runner through hole matched with the modular air cooling heat dissipation plate, and all the main runner through holes form a main runner together. And the cathode plate, the cathode sealing ring, the membrane electrode, the anode sealing ring and the anode plate are respectively provided with a positioning hole matched with the positioning hole on the heat dissipation plate.
The above aspects and any possible implementation manners further provide an implementation manner, wherein the PEM fuel cell stack further comprises a cathode end plate, a cathode current collecting plate, a 1 st fuel cell unit, a 2 nd fuel cell unit, …, an nth fuel cell unit, an anode current collecting plate, an anode end plate and other accessories, which are sequentially stacked to form the PEM fuel cell stack with n PEM fuel cell units, and an air cooling fan set is further arranged above the PEM fuel cell stack.
The above aspect and any possible implementation further provide an implementation in which the air-cooling fan assembly includes an air-cooling fan housing and a heat dissipation fan provided on the air-cooling fan housing.
In a fourth aspect, the present invention provides an air-cooled PEM fuel cell system, comprising a PEM fuel cell stack as described in any of the above, a cathode reaction air supply, an anode reaction hydrogen supply and a load, wherein the cathode reaction air supply is in communication with a cathode reaction zone of the PEM fuel cell stack, and the anode reaction hydrogen supply is in communication with an anode reaction zone of the PEM fuel cell stack; and the load is connected with the positive and negative output power ends of the PEM fuel cell stack through leads.
The above-described aspects and any possible implementations further provide an implementation in which the cathode reaction air supply device includes an air compressor, an air filter, and an air duct; the anode reaction hydrogen supply device comprises a hydrogen storage tank, a hydrogen pressure reduction and relief valve and a hydrogen pipeline.
The above aspects and any possible implementation manners further provide an implementation manner, in which the air-cooled PEM fuel cell system further comprises an auxiliary battery and a controller, wherein the controller is used for controlling the flow rates of cathode and anode reaction gases and cooling air of the PEM fuel cell stack, preheating before starting the stack, and switching power supply between the PEM fuel cell stack and the auxiliary battery; the flow rate of the cooling air is adjusted by adjusting the rotation speed of the heat radiation fan.
Compared with the traditional air cooling cold heat dissipation plate design, the invention can obtain the following technical effects: the air cooling runner module meets the requirement of conductivity among the repeated modules in the PEM fuel cell stack, ensures that air cooling airflow uniformly passes through the PEM fuel cell stack at a large flow rate, enhances the heat dissipation capacity of the stack, and simultaneously reduces the weight and the cost of the system; the main runner module made of high-temperature resistant elastic material ensures the sealing property of the reaction gas channel and improves the safety and stability of system operation; in addition, the air cooling runner module and the main runner module adopt a modular design, so that the radiating and safety of the galvanic pile are ensured, and the processing and assembling difficulty of the galvanic pile system is reduced.
Of course, it is not necessary for any one product in which the invention is practiced to achieve all of the above-described technical effects simultaneously.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a modular air-cooled heat sink plate according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an air-cooling runner module of a modular air-cooling heat dissipation plate according to an embodiment of the present invention;
fig. 3 is a schematic side view of an air-cooling runner module of a modular air-cooling heat sink according to an embodiment of the present invention; wherein, fig. 3(a) is in a sine curve shape, fig. 3(b) is in a square wave shape, and fig. 3(c) is in a sawtooth shape;
fig. 4 is a schematic structural diagram of a main runner module of a modular air-cooled heat dissipation plate according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating an air-cooling runner module and a main runner module of a modular air-cooling heat sink according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of two design styles of sealing materials for the modular air-cooled heat dissipation plate according to an embodiment of the present invention; wherein, fig. 6(a) is an integral structure diagram, and fig. 6(b) is a split structure diagram;
fig. 7 is a schematic diagram of the position of a modular air-cooled heat sink in a fuel cell unit according to an embodiment of the present invention;
fig. 8 is an assembly schematic diagram of a modular air-cooled heat sink plate for a PEM fuel cell stack according to an embodiment of the present invention;
fig. 9 is an exploded view of the structure of the air-cooling fan and the PEM fuel cell stack when the PEM fuel cell stack is used in an actual load environment according to an embodiment of the present invention.
Figure 10 is a system diagram of a PEM fuel cell stack for actual loading according to one embodiment of the present invention;
wherein, in the figure:
1-air cooling runner module; 2-main runner module; 3-a cathode plate; 4-a cathode seal ring; 5-a membrane electrode; 6-anode sealing ring; 7-an anode plate; 8-modular air cooling heat dissipation plates; 9-a collector plate; 10-an insulating spacer; 11-an end plate; 12-a bolt; 13-positioning holes; 14-a bipolar plate; 15-a fuel cell unit; 16-a repeating module; 17-PEM fuel cell stack; 18-a fan housing; 19-a heat radiation fan, 20-a controller; 21-an auxiliary battery; 22-external load; 23-hydrogen pressure reducing and relieving valve; 24-a hydrogen storage tank; 25-an air filter; 26-air compressor.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Aiming at the problems of heat dissipation, reaction gas sealing performance, complex process and the like still existing in the conventional air-cooled PEM fuel cell stack, the invention realizes the modularized air-cooled heat dissipation plate suitable for the air-cooled PEM fuel cell by considering the aspects of air-cooled heat dissipation plate composition, material selection, forming process and the like.
The invention provides a modularized air-cooling heat dissipation plate, which comprises an air-cooling runner module 1 and a main runner module 2, as shown in figure 1. The assembling manner and the positional relationship between the air-cooling runner module 1 and the main runner module 2 include, but are not limited to: bonding (as shown in fig. 5), snap-fitting, etc.
The air-cooling flow channel module 1 is a conductive thin plate, as shown in fig. 2, the conductive thin plate is corrugated, the overall thickness (i.e., the distance from the wave crest to the wave trough) is 1-3 mm, the thickness of the conductive thin plate is 0.1-1 mm, and the material includes but is not limited to conductive materials such as aluminum alloy, graphite, stainless steel, etc. The shape of the side surface of the conductive thin plate (i.e. corrugated shape) is specifically sine wave (as shown in fig. 3 a), square wave (as shown in fig. 3 b), saw-tooth wave (as shown in fig. 3c, it may also be called as zigzag shape), etc., and the processing manner includes, but is not limited to, stamping, machining, roll forming, chemical etching, etc.
As shown in fig. 4, the main runner module 2 is a sealing material, including a cathode and anode gas sealing material, the whole thickness of which is consistent with that of the conductive sheet, the size of the main runner through hole left in the middle of which is consistent with the shape of the main runner through hole of the cathode and anode plate, the material of which includes, but is not limited to, PEEK, fluororubber and other high temperature resistant elastic materials, and the molding process includes, but is not limited to, machining, injection molding, fine machining and the like. When the heat dissipation plate is used for a PEM fuel cell stack, the main flow passage through holes with the same size and shape are arranged on each layer superposed with the heat dissipation plate, and form a main flow passage for cooling air to pass through, so that the cooling efficiency is improved. The overall shape of the main runner module 2 is preferably in a shape of 'K', the number of main runner through holes is preferably two, and the arrangement mode is matched with the shape of 'K', so that the main runner module 2 has good stability and a large enough through hole area as much as possible.
Based on the main flow channel module 2, the cathode and anode gas sealing materials can be designed in various forms according to actual requirements, including but not limited to an integral design (as shown in fig. 6 a), a split design (as shown in fig. 6 b), etc., and the peripheral shape thereof can refer to the shape of the reaction gas flow channel through hole or the peripheral shape of the bipolar plate.
Example 1:
fig. 1 shows a schematic diagram of a modular air-cooled heat sink according to the present invention. The air-cooling runner module 1 which is one of the parts is an aluminum alloy sheet with a sinusoidal corrugated section, the whole thickness of the aluminum alloy sheet is 2mm, the thickness of the aluminum alloy material is 0.2mm, and the aluminum alloy sheet is manufactured by adopting a stamping process. The main runner module 2, which is one of the other parts, has a thickness of 2mm, is manufactured by adopting an integral design (as shown in fig. 6 (a)) and a machining process, the main runner through hole in the middle is consistent with the main runner through hole on the anode and cathode plates in shape and size, and the outer periphery is approximately consistent with the outer edge of the bipolar plate.
Example 2:
referring to fig. 7, there is shown a schematic view of the position of the modular air-cooled heat sink of the present invention in a fuel cell unit. The components (the cathode plate 3, the cathode seal ring 4, the membrane electrode 5, the anode seal ring 6, the anode plate 7 and the modular air-cooled heat sink plate 8) in the fuel cell unit 15 are integrated by bonding or physical contact. The cathode plate and the anode plate are made of materials including but not limited to metal plates, graphite plates and composite plates plated with anticorrosive conductive coatings.
Example 3:
as shown in fig. 8, fig. 8 shows an assembly diagram of the modular air-cooled heat sink plate of the present invention for a PEM fuel cell stack, wherein the PEM fuel cell stack 17 includes bolts 12, end plates 11, insulating spacers 10, current collecting plates 9, and repeating modules 16 (i.e. a plurality of stacked fuel cell units 15, specifically, a 1 st fuel cell unit, a 2 nd fuel cell unit, …, and an nth fuel cell unit). The air-cooled PEM fuel cell stack further includes an air-cooled fan housing 18 and a heat dissipation fan 19 (shown in fig. 9). The components of each layer of the fuel cell unit and the fuel cell units connected in series are assembled by the clamping force of the front end plate and the rear end plate, and the front end plate and the rear end plate are connected by the screw rod to form the integral structure of the PEM fuel cell stack. The current collecting plates include a cathode current collecting plate and an anode current collecting plate, which are disposed at both ends of the repeating module 16.
The assembly process of the air-cooled PEM fuel cell stack comprises the following steps:
step 1: thin wires are sequentially passed through positioning holes 13 reserved in an end plate 11, an insulating spacer 10, a current collecting plate 9, a fuel cell unit 15 and a repeating module 16;
step 2: the bolts 12 sequentially penetrate through bolt hole positions on the end plate 11 and the air cooling fan cover 18 and are fastened by nuts, and the uniform stress of all directions of the fuel cell stack is ensured;
the insulating gasket 10, the collector plate 9 and the fuel cell unit 15 are all square, and the sizes of all the components are almost the same and smaller than the end plate 11, so that the assembly of the air cooling fan cover 18 and the end plate 11 is not hindered;
and step 3: fixing the heat radiation fan 19 on the air cooling fan cover 18 by screws;
and 4, step 4: and (4) drawing out the positioning thin lines, and completing the assembly of the air-cooled PEM fuel cell stack (comprising the PEM fuel cell stack 17, the air-cooled fan cover 18 and the heat dissipation fan 19).
Example 4:
referring to fig. 10, a schematic diagram of the circuit and piping connections of the PEM fuel cell stack assembled from the modular air-cooled heat sink plates and the like for the actual load environment is shown. The air-cooled PEM fuel cell includes a PEM fuel cell stack 17, a fan housing 18, and a radiator fan 19.
The operating principle of the PEM fuel cell stack in the actual load environment is as follows: on the reactant cathode side, the reactant air passes through an air filter 25 under the action of an air compressor 26 and into the interior of the PEM fuel cell stack 17 where a reduction reaction takes place on the cathode side of the membrane electrodes. On the reactant anode side, hydrogen passes from a hydrogen tank 24 through a pressure reducing and relieving valve 23 and then into the interior of the PEM fuel cell stack 17 where oxidation occurs on the anode side of the membrane electrodes.
The cooling air passes through the air cooling fan housing 18 under the action of the air cooling fan 19, passes through the modular air cooling heat sink 8, and finally flows out of the PEM fuel cell stack 17 and carries away the heat in the stack. Additionally, the PEM fuel cell stack supplies power to a load 22 through positive and negative terminals on the cathode and anode current collector plates.
Based on the PEM fuel cell stack operating in the actual load environment, the controller 20 controls the flow rates of reactant gas and cooling air to the PEM fuel cells, preheating before stack start-up, and switching of power between fuel cells and auxiliary battery 21.
The modular air-cooling heat sink plate suitable for the air-cooling proton exchange membrane fuel cell provided in the embodiments of the present application is described in detail above. The above description of the embodiments is only for the purpose of helping to understand the method of the present application and its core ideas; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
As used in the specification and claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (10)
1. A modularized air-cooling heat dissipation plate is characterized in that the heat dissipation plate comprises an air-cooling runner module and two main runner modules, the air-cooling runner module is a direct-current runner type conductive thin plate, and the two main runner modules are respectively arranged at two ends of the air-cooling runner module; and the main runner module is provided with a main runner through hole for forming a main runner.
2. The modular air-cooled heat sink of claim 1, wherein the cross-section of the electrically conductive thin plate has a sine wave shape, a square wave shape, or a sawtooth wave shape.
3. The modular air-cooled heat sink as recited in claim 1, wherein the conductive sheet has an overall thickness of 1-3 mm, and the conductive sheet is made of a material having a thickness of 0.1-1 mm.
4. The modular air-cooled heat dissipation plate of claim 1, wherein the main runner module is a sealing material, and two main runner through holes with different sizes are formed in the middle of the sealing material.
5. The modular air-cooled heat sink plate of claim 1, wherein the air-cooled runner module and the main runner module are connected by bonding or clamping.
6. The modular air-cooled heat sink of claim 1, wherein the primary runner module is of a one-piece or split construction.
7. A bipolar plate suitable for an air-cooled proton exchange membrane fuel cell, which is characterized in that the bipolar plate comprises a cathode plate, a heat dissipation plate and an anode plate which are sequentially stacked, wherein the heat dissipation plate is a modular air-cooled heat dissipation plate as claimed in any one of claims 1 to 6; and the cathode plate and the anode plate are respectively provided with a main runner through hole which is matched with the main runner through hole on the heat dissipation plate.
8. A PEM fuel cell stack comprising a plurality of fuel cell units; the fuel cell unit comprises a modular air-cooled heat sink according to any of claims 1-6.
9. The PEM fuel cell stack of claim 8 wherein said fuel cell units are of a layered construction comprising, in order, cathode plates, cathode gaskets, membrane electrodes, anode gaskets, anode plates, and said modular air-cooled heat sinks; and the cathode plate, the cathode sealing ring, the membrane electrode, the anode sealing ring and the anode plate are respectively provided with a main runner through hole matched with the modular air cooling heat dissipation plate, and all the main runner through holes form a main runner together.
10. An air-cooled PEM fuel cell system comprising a PEM fuel cell stack according to any of claims 8-9, a cathode reactant air supply, an anode reactant hydrogen supply, and a load, said cathode reactant air supply being in communication with a cathode reaction zone of said PEM fuel cell stack, said anode reactant hydrogen supply being in communication with an anode reaction zone of said PEM fuel cell stack; and the load is connected with the positive and negative output power ends of the PEM fuel cell stack through leads.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113991137A (en) * | 2021-12-28 | 2022-01-28 | 北京新研创能科技有限公司 | Bipolar plate flow guide area structure, bipolar plate and fuel cell |
| CN114597444A (en) * | 2022-02-14 | 2022-06-07 | 浙江天能氢能源科技有限公司 | Air-cooled fuel cell with enclosed cathode cavity |
| CN117457934A (en) * | 2023-11-29 | 2024-01-26 | 北京朔景新能源科技有限公司 | Heat dissipation support plate for fuel cell and fuel cell stack |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201017943Y (en) * | 2006-10-24 | 2008-02-06 | 上海清能燃料电池技术有限公司 | Heat radiation design of minitype fuel cell |
| CN102800880A (en) * | 2011-05-27 | 2012-11-28 | 中国地质大学（武汉） | Direct fuel cell based on organic liquid hydrogen storage material |
| CN110571450A (en) * | 2019-08-14 | 2019-12-13 | 浙江高成绿能科技有限公司 | Air-cooled fuel cell stack with strong heat dissipation effect |
-
2020
- 2020-10-19 CN CN202011118501.1A patent/CN112331881B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201017943Y (en) * | 2006-10-24 | 2008-02-06 | 上海清能燃料电池技术有限公司 | Heat radiation design of minitype fuel cell |
| CN102800880A (en) * | 2011-05-27 | 2012-11-28 | 中国地质大学（武汉） | Direct fuel cell based on organic liquid hydrogen storage material |
| CN110571450A (en) * | 2019-08-14 | 2019-12-13 | 浙江高成绿能科技有限公司 | Air-cooled fuel cell stack with strong heat dissipation effect |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113991137A (en) * | 2021-12-28 | 2022-01-28 | 北京新研创能科技有限公司 | Bipolar plate flow guide area structure, bipolar plate and fuel cell |
| CN114597444A (en) * | 2022-02-14 | 2022-06-07 | 浙江天能氢能源科技有限公司 | Air-cooled fuel cell with enclosed cathode cavity |
| CN117457934A (en) * | 2023-11-29 | 2024-01-26 | 北京朔景新能源科技有限公司 | Heat dissipation support plate for fuel cell and fuel cell stack |
| CN117457934B (en) * | 2023-11-29 | 2024-09-06 | 北京朔景新能源科技有限公司 | Heat dissipation support plate for fuel cell and fuel cell stack |
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| CN112331881B (en) | 2022-05-03 |
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