CN107482237A - A kind of fuel cell pile - Google Patents
A kind of fuel cell pile Download PDFInfo
- Publication number
- CN107482237A CN107482237A CN201710818235.5A CN201710818235A CN107482237A CN 107482237 A CN107482237 A CN 107482237A CN 201710818235 A CN201710818235 A CN 201710818235A CN 107482237 A CN107482237 A CN 107482237A
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- CN
- China
- Prior art keywords
- mobile jib
- fuel cell
- branch
- support mobile
- cell pile
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The present invention relates to field of fuel cell technology, more particularly to a kind of fuel cell pile, including bipolar plates, membrane electrode, collector plate and end plate, the bipolar plates and membrane electrode form a monocell, multiple monocell superpositions form fuel cell pile with collector plate and end plate again, bipolar plates include the hydrogen flow guide layer on upper strata and the air conducting layer of lower floor, heat dissipation channel is provided between hydrogen flow guide layer and air conducting layer, the heat dissipation channel is provided with vertical support mobile jib, support mobile jib both sides are connected to branch, the both ends of branch are connected to a upper end for supporting mobile jib and the lower end of another support mobile jib, it is cooling duct to support the space between mobile jib and branch.Fuel cell pile thermal diffusivity provided by the invention is good, steadiness is good, and alleviates the weight of fuel cell pile.
Description
Technical field
The present invention relates to field of fuel cell technology, and in particular to a kind of fuel cell pile.
Background technology
Fuel cell pile includes bipolar plates, membrane electrode, collector plate and end plate, and bipolar plates and membrane electrode form a single electricity
Pond, multiple monocells are superimposed and form fuel cell pile with collector plate and end plate again, two parts of most critical in fuel cell
It is bipolar plates and membrane electrode, wherein bipolar plates account for the 60%-80% of fuel cell gross weight, and account for the 30-45% of its cost,
So the processing cost for significantly reducing bipolar plates is the premise that fuel cell can apply to commercially produce.
The normal operating temperature of fuel cell pile is at 30~70 DEG C.If temperature is too low, reacting the water of generation can condense, and block up
Gas heat dissipation channel is filled in, the performance of pile is just deteriorated, if temperature is too high, membrane electrode water shortage, PEM can not normal work
Even damage.Generally, fuel cell is waited at work to carry out cooling processing to it, be divided into water-cooling type cooling and air cooling
Type cools.Water-cooling type pile is to pass through inside pile the effect for reaching cooling by the water of circulation, and the electric pile structure of water-cooling type is answered
Miscellaneous, make-up water pump EGR is not easy-maintaining.Air-cooled pile is the air by circulation by inside pile, adjusting fan
Rotating speed reaches the effect of cooling.
Patent CN202308177U is related to a kind of open air-cooled proton exchange film fuel cell electric piling, bipolar in the patent
Plate is made up of two bipolar half plates, i.e. anode plate and cathode plate, by being provided with a plurality of cooling airflow in anode plate and cathode plate
Road, accelerate pile radiating rate, although can reach the purpose of radiating, fuel cell pile weight is larger, cooling radiating
Passage is directly arranged on yin, yang pole plate plate, once the size of plate determines, cannot adjust radiating surface according to the size of battery
Product, usually because area of dissipation is limited, radiating effect is poor, causes heat caused by fuel cell all to dissipate, so as to shadow
The performance of fuel cell, or the air quantity of increase cooling fan are rung to reach the purpose of radiating, but are so added again extra
Power consumption.
The content of the invention
The technical problems to be solved by the invention are：The fuel cell pile that a kind of thermal diffusivity is good, steadiness is good is provided.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of fuel cell pile, including it is bipolar
Plate, membrane electrode, collector plate and end plate, the bipolar plates and membrane electrode form a monocell, multiple monocells superpositions again with collection
Flowing plate and end plate form fuel cell pile, and the bipolar plates include the hydrogen flow guide layer on upper strata and the air conducting layer of lower floor,
Heat dissipation channel is provided between the hydrogen flow guide layer and air conducting layer, the heat dissipation channel is provided with vertical support mobile jib, institute
State support mobile jib both sides and be connected to branch, the both ends of the branch are connected to the upper end of support mobile jib and another
The lower end of mobile jib is supported, the space between the support mobile jib and branch is cooling duct.
Further, the contiguous branch is connected to same one end of support mobile jib.
Further, the cross section of the support mobile jib is rectangle, and the cross section of the branch is parallelogram, institute
The support mobile jib that support mobile jib is inner hollow is stated, the branch is also the branch of inner hollow.
Further, the angle that the branch is formed with support mobile jib is 45 °.
Further, the cross section of the cooling duct is triangle.
Further, the support mobile jib and branch are the metal material of high-termal conductivity.
Further, the cooling duct of single bipolar plates is multiple.
The beneficial effects of the present invention are：Fuel cell pile provided by the invention, bipolar plates are provided with heat dissipation channel, radiating
Passage is provided with support mobile jib and branch, constitutes dendritic structure, the contact area increase of air and bipolar plates, extraneous wind
When machine rotates, because bipolar plates and the contact area of air increase, under same volume air, the bipolar plates of fuel cell pile are cooled
Effect faster, and then improves the performance of fuel cell pile, reduces the energy consumption of blower fan；The bipolar plates of multiple-branching construction, it is more empty
Structure, and the contrast of common bipolar plates, the weight saving of bipolar plates, reduce the weight of fuel cell pile, inside bipolar plates
Dendritic structure has the function that support to bipolar plates so that fuel cell pile is more firm；Cold wind is by cooling duct pair
Fuel cell pile is radiated, and improves the performance of fuel cell pile.
Brief description of the drawings
Fig. 1 is the structural representation of the fuel cell pile of the specific embodiment of the invention；
Label declaration：1st, bipolar plates；11st, mobile jib is supported；12nd, branch；13rd, cooling duct；2nd, diffusion layer；3rd, Catalytic Layer；
4th, PEM.
Embodiment
To describe the technology contents of the present invention, the objects and the effects in detail, below in conjunction with embodiment and coordinate attached
Figure is explained.
The design of most critical of the present invention is:Heat dissipation channel is provided with inside bipolar plates, heat dissipation channel is provided with vertical branch
Mobile jib is supportted, support mobile jib both sides are connected to branch, and the space between the support mobile jib and branch is cooling duct, enhancing
The thermal diffusivity and steadiness of fuel cell pile.
It refer to Fig. 1, a kind of fuel cell pile, including bipolar plates 1, membrane electrode, collector plate and end plate, the bipolar plates
1 and membrane electrode form a monocell, the superposition of multiple monocells forms fuel cell pile with collector plate and end plate again, described double
Pole plate 1 includes the hydrogen flow guide layer on upper strata and the air conducting layer of lower floor, is set between the hydrogen flow guide layer and air conducting layer
There is heat dissipation channel, the heat dissipation channel is provided with vertical support mobile jib 11, and support mobile jib 11 both sides are connected to branch
12, the both ends of the branch 12 are connected to a upper end for supporting mobile jib 11 and the lower end of another support mobile jib 11, described
It is cooling duct 13 to support the space between mobile jib 11 and branch 12.
It was found from foregoing description, the beneficial effects of the present invention are：Fuel cell pile provided by the invention, bipolar plates 1
Provided with heat dissipation channel, heat dissipation channel is provided with support mobile jib 11 and branch 12, constitutes dendritic structure, air and bipolar plates 1
Contact area increase, it is right under same volume air because the contact area of bipolar plates 1 and air increases when extraneous blower fan rotates
The cooling-down effect of bipolar plates 1 of fuel cell pile faster, and then improves the performance of fuel cell pile, reduces the energy consumption of blower fan；
The bipolar plates 1 of multiple-branching construction, more empty structures, and common bipolar plates contrast, the weight saving of bipolar plates 1, reduce fuel
The weight of battery pile, the dendritic structure inside bipolar plates 1 have the function that support to bipolar plates 1 so that fuel cell electricity
Heap is more firm；Cold wind radiates by cooling duct 13 to fuel cell pile, improves the performance of fuel cell pile.
Further, the contiguous branch 12 is connected to same one end of support mobile jib 11.
Further, the cross section of the support mobile jib 11 is rectangle, and the cross section of the branch 12 is parallel four side
Shape, the support mobile jib 11 are the support mobile jib 11 of inner hollow, and the branch 12 is also the branch 12 of inner hollow.
Seen from the above description, it is inner hollow to support mobile jib 11 and branch 12, and cooling wind can be by supporting mobile jib
11 and the inside of branch 12, increase bipolar plates 1 and the contact area for cooling down wind strengthen the radiating effect of fuel cell pile, entered
One step mitigates the weight of bipolar plates 1, and does not influence the supporting role for supporting mobile jib 11 and branch 12 to bipolar plates 1.
Further, the angle that the branch 12 is formed with support mobile jib 11 is 45 °.
Further, the cross section of the cooling duct 13 is triangle.
Further, the support mobile jib 11 and branch 12 are the metal material of high-termal conductivity.
Further, the cooling duct 13 of single bipolar plates 1 is multiple.
Embodiment one
A kind of fuel cell pile, it is air-cooled proton exchange film fuel cell electric piling, including bipolar plates 1, membrane electrode,
Collector plate and end plate, the bipolar plates 1 and membrane electrode form a monocell, multiple monocells superpositions again with collector plate and end plate
Fuel cell pile is formed, wherein membrane electrode includes diffusion layer 2, Catalytic Layer 3 and PEM 4, the both sides of PEM 4 point
Catalytic Layer 3 and diffusion layer 2 are not placed with, and diffusion layer 2, Catalytic Layer 3 and PEM 4 stack to form membrane electrode by hot pressing.
The bipolar plates 1 include the hydrogen flow guide layer on upper strata and the air conducting layer of lower floor, the hydrogen flow guide layer and air conducting layer
Between be provided with heat dissipation channel, the heat dissipation channel is provided with vertical support mobile jib 11, and support mobile jib 11 both sides connect respectively
There is branch 12, the both ends of the branch 12 are connected under the upper end and another support mobile jib 11 of a support mobile jib 11
End, the space between the support mobile jib 11 and branch 12 is cooling duct 13.
The hydrogen flow guide layer is provided with hydrogen flow guide groove, and air conducting layer is provided with air conducting groove, and hydrogen is by entering
Mouth enters in the hydrogen flow guide groove on the upper strata of bipolar plates 1, at hydrogen flow guide groove, diffusion layer 2 and the Catalytic Layer in PEM 4
3 react, and generate hydrogen ion and electronics, hydrogen ion are reacted by PEM 4 and the oxygen in diffusion layer, generate
Water.Cooling air is provided by the blower fan in the external world, and cooling air plays a part of cooling by cooling duct 13 to pile, radiates
Passage does not connect with hydrogen flow guide groove and air conducting groove, and hydrogen flow guide groove be arranged in parallel with air conducting groove, enters independently of each other
Promoting the circulation of qi precursor reactant.The structure of cooling duct 13 and quantity can determine according to the heat dissipation capacity of actual power, if air-cooled proton exchange
The power that membrane cell needs design is big, then the just corresponding increase of the structure of cooling duct 13.If the power of required fuel cell
Smaller, caloric value is without very big, the then just reduction of cooling duct 13.Calculate example 1 and example 2 in practice, cooling duct 13 it is transversal
Area is respectively 28.3mm2And 78.6mm2。
The contiguous branch 12 is connected to same one end of support mobile jib 11.The cross section of the support mobile jib 11 is rectangular
Shape, the cross section of the branch 12 is parallelogram, the support mobile jib 11 for supporting mobile jib 11 as inner hollow, described point
Branch 12 is also the branch 12 of inner hollow.The angle that the branch 12 is formed with support mobile jib 11 is 45 °.The cooling duct 13
Cross section be triangle.The support mobile jib 11 and branch 12 are the metal material of high-termal conductivity.Single bipolar plates 1 it is cold
But passage 13 is multiple.
In summary, fuel cell pile provided by the invention, bipolar plates are provided with heat dissipation channel, radiating
Passage is provided with support mobile jib and branch, constitutes dendritic structure, the contact area increase of air and bipolar plates, extraneous wind
When machine rotates, because bipolar plates and the contact area of air increase, under same volume air, the bipolar plates of fuel cell pile are cooled
Effect faster, and then improves the performance of fuel cell pile, reduces the energy consumption of blower fan；The bipolar plates of multiple-branching construction, it is more empty
Structure, and the contrast of common bipolar plates, the weight saving of bipolar plates, reduce the weight of fuel cell pile, inside bipolar plates
Dendritic structure has the function that support to bipolar plates so that fuel cell pile is more firm；Cold wind is by cooling duct pair
Fuel cell pile is radiated, and improves the performance of fuel cell pile.
It is inner hollow to support mobile jib and branch, and cooling wind can be by supporting the inside of mobile jib and branch, and increase is double
The contact area of pole plate and cooling wind, strengthen the radiating effect of fuel cell pile, further mitigate bipolar plates weight, and not shadow
Ring the supporting role of support mobile jib and branch to bipolar plates.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, or the technical field of correlation is directly or indirectly used in, similarly include
In the scope of patent protection of the present invention.
Claims (7)
1. a kind of fuel cell pile, including bipolar plates, membrane electrode, collector plate and end plate, the bipolar plates and membrane electrode are formed
One monocell, multiple monocell superpositions form fuel cell pile with collector plate and end plate again, it is characterised in that described bipolar
Plate includes the hydrogen flow guide layer on upper strata and the air conducting layer of lower floor, is provided with and dissipates between the hydrogen flow guide layer and air conducting layer
The passage of heat, the heat dissipation channel are provided with vertical support mobile jib, and the support mobile jib both sides are connected to branch, the branch
Both ends be connected to one support mobile jib upper end and it is another support mobile jib lower end, it is described support mobile jib and branch between
Space be cooling duct.
2. fuel cell pile according to claim 1, it is characterised in that the contiguous branch is connected to support mobile jib
Same one end.
3. fuel cell pile according to claim 1, it is characterised in that the cross section of the support mobile jib is rectangular
Shape, the cross section of the branch is parallelogram, and the support mobile jib is the support mobile jib of inner hollow, and the branch is also
The branch of inner hollow.
4. fuel cell pile according to claim 1, it is characterised in that the angle that the branch is formed with support mobile jib
For 45 °.
5. fuel cell pile according to claim 1, it is characterised in that the cross section of the cooling duct is triangle
Shape.
6. fuel cell pile according to claim 1, it is characterised in that it is described support mobile jib and branch be high heat conduction
The metal material of property.
7. fuel cell pile according to claim 1, it is characterised in that the cooling duct of single bipolar plates is multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818235.5A CN107482237B (en) | 2017-09-12 | 2017-09-12 | Fuel cell stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818235.5A CN107482237B (en) | 2017-09-12 | 2017-09-12 | Fuel cell stack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107482237A true CN107482237A (en) | 2017-12-15 |
| CN107482237B CN107482237B (en) | 2020-07-10 |
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ID=60585224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710818235.5A Active CN107482237B (en) | 2017-09-12 | 2017-09-12 | Fuel cell stack |
Country Status (1)
| Country | Link |
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| CN (1) | CN107482237B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110890569A (en) * | 2019-12-06 | 2020-03-17 | 浙江锋源氢能科技有限公司 | Fuel cell assembly, fuel cell and preparation process thereof |
| CN112986489A (en) * | 2019-12-14 | 2021-06-18 | 中国科学院大连化学物理研究所 | Device for testing performance of single-cell membrane electrode of cathode open stack |
| CN113642265A (en) * | 2021-06-29 | 2021-11-12 | 东风汽车集团股份有限公司 | Method and device for evaluating fluid flow of fuel cell short stack |
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| JP2012256479A (en) * | 2011-06-08 | 2012-12-27 | Honda Motor Co Ltd | Separator for fuel cell and fuel cell |
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| US4292379A (en) * | 1980-04-28 | 1981-09-29 | Westinghouse Electric Corp. | Variable area fuel cell process channels |
| JPH0722036A (en) * | 1993-07-01 | 1995-01-24 | Hitachi Ltd | Layered fuel cell |
| JP2004079431A (en) * | 2002-08-21 | 2004-03-11 | Honda Motor Co Ltd | Fuel cell and its operation method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110890569A (en) * | 2019-12-06 | 2020-03-17 | 浙江锋源氢能科技有限公司 | Fuel cell assembly, fuel cell and preparation process thereof |
| CN112986489A (en) * | 2019-12-14 | 2021-06-18 | 中国科学院大连化学物理研究所 | Device for testing performance of single-cell membrane electrode of cathode open stack |
| CN112986489B (en) * | 2019-12-14 | 2022-03-11 | 中国科学院大连化学物理研究所 | Device for testing performance of single-cell membrane electrode of cathode open stack |
| CN113642265A (en) * | 2021-06-29 | 2021-11-12 | 东风汽车集团股份有限公司 | Method and device for evaluating fluid flow of fuel cell short stack |
| CN113642265B (en) * | 2021-06-29 | 2024-04-16 | 东风汽车集团股份有限公司 | Method and device for evaluating flow of fuel cell short stack fluid |
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| Publication number | Publication date |
|---|---|
| CN107482237B (en) | 2020-07-10 |
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Address after: 355000 No. 14, Jinglin Road, Yangquan, Fu'an City, Ningde City, Fujian Province Patentee after: Fujian Yanan Technology Co.,Ltd. Address before: 355000 No. 14, Jinglin Road, Yangquan, Fu'an City, Ningde City, Fujian Province Patentee before: FUJIAN FU'AN MINDONG YA'NAN ELECTRICAL MACHINE Co.,Ltd. |