CN102142566A - Flow field plate for fuel cells - Google Patents
Flow field plate for fuel cells Download PDFInfo
- Publication number
- CN102142566A CN102142566A CN2010101053347A CN201010105334A CN102142566A CN 102142566 A CN102142566 A CN 102142566A CN 2010101053347 A CN2010101053347 A CN 2010101053347A CN 201010105334 A CN201010105334 A CN 201010105334A CN 102142566 A CN102142566 A CN 102142566A
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- support frame
- flow field
- runners
- supporting walls
- Prior art date
- 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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- 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
Abstract
The invention provides a flow field plate for fuel cells, which comprises a body and a supporting frame, wherein the body is provided with a plurality of flow channels and an opening, and the flow channels converge at the opening. The supporting frame is arranged at the edge of the opening. The supporting frame is in a ring shape and encircles the flow channels. The supporting frame comprises at least one a pair of first supporting walls, and the first supporting walls are respectively arranged at the two sides of the flow channels.
Description
Technical field
The present invention is relevant for a kind of flow-field plate, particularly relevant for a kind of flow-field plate of fuel cell.
Background technology
Fuel cell pack is to be formed by a plurality of fuel cell stacks, as shown in Figure 1, each fuel cell 10 comprises a mea (MEA) 20,30 and two flow-field plate 40 of gas diffusion layers (GDL), and each gas diffusion layers 30 lays respectively at mea 20 both sides, and be folded in respectively between flow-field plate 40 and the mea 20, flow-field plate has a plurality of runners 41, in order to transmission and the distribution of carrying out fluid in the fuel cell 10.
For fuel cell 10, fluid can enter in the runner 41 of each flow-field plate 40 smoothly, in runner 41, carry out electrochemical reaction, and reacted fluid also can all can influence the stability and the reliability of fuel cell 10 smoothly by each flow-field plate 40 discharge.
When fuel cell 10 is stacked into fuel cell pack, because the transmission of stress during assembling, the discrepancy of runner 41 and porch easy deformation or cave in each flow-field plate 40 cause separating and advancing of fluid being hindered of mea 20 and gas diffusion layers 30.
Summary of the invention
The object of the present invention is to provide a kind of fuel cell flow field board with good stability and reliability.
The invention provides a kind of fuel cell flow field board, fuel cell flow field board comprises a body and a support frame.Body has a plurality of runners and an opening, and wherein runner comes together in opening part.Support frame is arranged at the edge of opening, and wherein support frame is in the form of a ring and around runner, and support frame comprises at least one pair of first supporting walls, and wherein first supporting walls is arranged at the both sides of runner respectively.
In the present invention, support frame all circlewise, and when support frame and bulk junction fashionable, first supporting walls closely with the body contact matching, and it is parallel with the direction of fuel cell stack that direction is stretched on its edge, so stress can be avoided the distortion of support frame directly by the first supporting walls transmission.
Fuel cell flow field board of the present invention is respectively set up a support frame in the porch and the exit of runner, increase structural strength herein, when several fuel cell stacks, fuel cell flow field board in each fuel cell can be brought into play its function, support the inlet and the outlet of runner, and prevent separating or caving in of mea and gas diffusion layers, and then can make fluid smoothly by supporting the inlet or the outlet of runner, enter uniformly in another fuel cell, improve whole stability and reliability.
For above-mentioned and other purpose of the present invention, feature and advantage can be become apparent, cited below particularly one concrete preferred embodiment, and cooperate appended accompanying drawing to elaborate.
Description of drawings
Fig. 1 shows the schematic diagram of known fuel;
Fig. 2 shows the schematic diagram of fuel cell runner plate of the present invention;
Fig. 3 A, 3B show the enlarged diagram of fuel cell runner plate different visual angles of the present invention;
Fig. 4 A, 4B change example for one of fuel cell runner plate of the present invention, and it shows the enlarged diagram of different visual angles respectively; And
Fig. 5 A, 5B are another variation example of fuel cell runner plate of the present invention, and it shows the enlarged diagram of different visual angles respectively.
[primary clustering symbol description]
10 fuel cells;
30 gas diffusion layers (GDL);
100 fuel cell flow field boards;
300 support frames;
20 mea (MEA);
The 300R rib;
200 bodies;
301 first supporting walls;
The 200S accommodation space;
302 second supporting walls;
201 runners;
310 corresponding runners;
202 openings;
40 flow-field plate;
203 draw-in grooves;
41 runners.
Embodiment
Referring to Fig. 2, fuel cell flow field board 100 of the present invention comprises a body 200 and a support frame 300, body 200 has a plurality of runners 201 and a plurality of opening 202, its split shed 202 is formed at porch or the exit that runner 201 compiles, and support frame 300 then is arranged at the edge of opening 202 and around all runners 201.
Detailed explanation, referring to Fig. 3 A, 3B, support frame 300 circlewise, and have a pair of first supporting walls 301 and a pair of second supporting walls 302, first supporting walls 301 toward each other, and second supporting walls 302 also toward each other, and first supporting walls 301 and second supporting walls 302 are interconnected with one another to form ring-type (as shown in Figure 3A).Body 200 has two draw-in grooves 203, extend towards body 200 inside by opening 202, and support frame 300 engages with draw-in groove 203 by first supporting walls 301, so as to runner 201 around (shown in Fig. 3 B), and runner 201 is to extend in the support frame 300, wherein the inner surface of first supporting walls 301 and outer surface all with body 200 butts, support frame 300 can be arranged on the body 200 closely, and second supporting walls 302 flushes with body 200.
Referring to Fig. 4 A, 4B, change in the example one, support frame 300 has a plurality of rib 300R, be arranged at the inner surface of second supporting walls 302, and between adjacent rib 300R, form a plurality of corresponding runners 310, corresponding with the runner 201 on the body 200, when support frame 300 engaged with draw-in groove 203, runner 201 connected with corresponding runner 310.
Referring to Fig. 5 A, 5B, change in the example at another, body 200 has an accommodation space 200S, be formed at the edge of opening 202, and corresponding with runner 201, and the draw-in groove 203 on the body 200 can omit, support frame 300 can friction tight mode be arranged among the accommodation space 200S, utilize first supporting walls 301 and body 200 butts, support frame 300 can be arranged on the body 200 closely, and second supporting walls 302 flushes with body 200.
In the various embodiments described above, support frame 300 all circlewise, and when support frame 300 combines with body 200, first supporting walls 301 closely with body 200 contact matching, and it is parallel with the direction of fuel cell stack along stretching direction, therefore stress can directly be transmitted by first supporting walls 301, avoids the distortion of support frame 300.
Fuel cell flow field board 100 of the present invention is respectively set up a support frame 300 in the porch and the exit of runner 201, increase structural strength herein, when several fuel cell stacks, fuel cell flow field board 100 in each fuel cell can be brought into play its function, support the inlet and the outlet of runner 201, and prevent separating or caving in of mea and gas diffusion layers, and then can make fluid smoothly by supporting the inlet or the outlet of runner 201, enter uniformly in another fuel cell, improve whole stability and reliability.
Though the present invention discloses as above with preferred embodiment; right its is not in order to restriction the present invention, any person skilled in the art, without departing from the spirit and scope of the present invention; change and retouching when doing, so protection scope of the present invention is as the criterion when looking the scope that claims define.
Claims (10)
1. a fuel cell flow field board is characterized in that, comprising:
One body has a plurality of runners and an opening, and wherein these a plurality of runners come together in this opening; And
One support frame is arranged at the edge of this opening, and wherein this support frame is in the form of a ring and around these a plurality of runners, and this support frame comprises at least one pair of first supporting walls, and wherein this at least one pair of first supporting walls is arranged at the both sides of these a plurality of runners respectively.
2. fuel cell flow field board according to claim 1 is characterized in that, an outlet or the inlet that this opening compiles for this runner.
3. fuel cell flow field board according to claim 1 is characterized in that, this body has two draw-in grooves, extended towards this body interior by this opening, and this support frame engages with this draw-in groove.
4. fuel cell flow field board according to claim 3 is characterized in that, this support frame is that at least one pair of first supporting walls engages with this draw-in groove by this.
5. fuel cell flow field board according to claim 1 is characterized in that, the inner surface of this at least one pair of first supporting walls and outer surface and this body butt.
6. fuel cell flow field board according to claim 1 is characterized in that, this bracing frame has a pair of second supporting walls, and at least one pair of first supporting walls is connected with this, and flushes with this body.
7. fuel cell flow field board according to claim 6 is characterized in that this support frame has a plurality of ribs, is arranged on this second supporting walls, and forms a plurality of corresponding runners between this adjacent rib, is connected with these a plurality of runners.
8. fuel cell flow field board according to claim 1 is characterized in that, this support frame has a plurality of corresponding runners, is connected with these a plurality of runners.
9. fuel cell flow field board according to claim 1 is characterized in that, these a plurality of runners extend in this support frame.
10. fuel cell flow field board according to claim 1 is characterized in that this body has an accommodation space, is formed at the edge of this opening, and corresponding with these a plurality of runners, and this support frame is arranged in this accommodation space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101053347A CN102142566A (en) | 2010-01-28 | 2010-01-28 | Flow field plate for fuel cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101053347A CN102142566A (en) | 2010-01-28 | 2010-01-28 | Flow field plate for fuel cells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102142566A true CN102142566A (en) | 2011-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101053347A Pending CN102142566A (en) | 2010-01-28 | 2010-01-28 | Flow field plate for fuel cells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102142566A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985886A (en) * | 2013-02-07 | 2014-08-13 | 上海恒劲动力科技有限公司 | Fuel cell netted support bipolar plate and electric pile comprising fuel cell netted support bipolar plate |
| CN106104878A (en) * | 2014-03-19 | 2016-11-09 | 大众汽车有限公司 | Fuel cell |
| CN108352540A (en) * | 2015-11-06 | 2018-07-31 | 日产自动车株式会社 | The monocell of fuel cell constructs and is laminated with the heap construction of the fuel cell of the fuel-cell single-cell |
| CN109301279A (en) * | 2018-12-13 | 2019-02-01 | 上海交通大学 | A kind of Z-shaped fuel cell flow field board of gradual change |
| CN112740450A (en) * | 2018-09-21 | 2021-04-30 | 罗伯特·博世有限公司 | Electrode holder arrangement for a fuel cell and/or electrolyser unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0689728A (en) * | 1992-09-07 | 1994-03-29 | Mitsubishi Heavy Ind Ltd | Flat plate type solid electrolyte fuel cell |
| US6017648A (en) * | 1997-04-15 | 2000-01-25 | Plug Power, L.L.C. | Insertable fluid flow passage bridgepiece and method |
| US6410179B1 (en) * | 2000-04-19 | 2002-06-25 | Plug Power Inc. | Fluid flow plate having a bridge piece |
| DE10210293A1 (en) * | 2002-03-08 | 2003-10-02 | Elringklinger Ag | Fuel cell block group has sealing element containing or consisting of sintered glass ceramic sintered at sinter temperature at least 150 K higher than fuel cell block group operating temperature |
| US20070134541A1 (en) * | 2005-12-08 | 2007-06-14 | Shinichi Arisaka | Fuel cell |
-
2010
- 2010-01-28 CN CN2010101053347A patent/CN102142566A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0689728A (en) * | 1992-09-07 | 1994-03-29 | Mitsubishi Heavy Ind Ltd | Flat plate type solid electrolyte fuel cell |
| US6017648A (en) * | 1997-04-15 | 2000-01-25 | Plug Power, L.L.C. | Insertable fluid flow passage bridgepiece and method |
| US6410179B1 (en) * | 2000-04-19 | 2002-06-25 | Plug Power Inc. | Fluid flow plate having a bridge piece |
| DE10210293A1 (en) * | 2002-03-08 | 2003-10-02 | Elringklinger Ag | Fuel cell block group has sealing element containing or consisting of sintered glass ceramic sintered at sinter temperature at least 150 K higher than fuel cell block group operating temperature |
| US20070134541A1 (en) * | 2005-12-08 | 2007-06-14 | Shinichi Arisaka | Fuel cell |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985886A (en) * | 2013-02-07 | 2014-08-13 | 上海恒劲动力科技有限公司 | Fuel cell netted support bipolar plate and electric pile comprising fuel cell netted support bipolar plate |
| CN106104878A (en) * | 2014-03-19 | 2016-11-09 | 大众汽车有限公司 | Fuel cell |
| CN106104878B (en) * | 2014-03-19 | 2018-12-11 | 大众汽车有限公司 | Fuel cell |
| US10804545B2 (en) | 2014-03-19 | 2020-10-13 | Audi Ag | Fuel cell |
| CN108352540A (en) * | 2015-11-06 | 2018-07-31 | 日产自动车株式会社 | The monocell of fuel cell constructs and is laminated with the heap construction of the fuel cell of the fuel-cell single-cell |
| CN108352540B (en) * | 2015-11-06 | 2019-10-18 | 日产自动车株式会社 | The monocell of fuel cell constructs and is laminated with the heap construction of the fuel cell of the fuel-cell single-cell |
| CN112740450A (en) * | 2018-09-21 | 2021-04-30 | 罗伯特·博世有限公司 | Electrode holder arrangement for a fuel cell and/or electrolyser unit |
| CN109301279A (en) * | 2018-12-13 | 2019-02-01 | 上海交通大学 | A kind of Z-shaped fuel cell flow field board of gradual change |
| CN109301279B (en) * | 2018-12-13 | 2021-08-03 | 上海交通大学 | Gradual change Z shape fuel cell flow field board |
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Application publication date: 20110803 |