CN103779586B - A kind of fuel cell end plate - Google Patents
A kind of fuel cell end plate Download PDFInfo
- Publication number
- CN103779586B CN103779586B CN201410013203.4A CN201410013203A CN103779586B CN 103779586 B CN103779586 B CN 103779586B CN 201410013203 A CN201410013203 A CN 201410013203A CN 103779586 B CN103779586 B CN 103779586B
- Authority
- CN
- China
- Prior art keywords
- end plate
- pile
- pressure
- fuel cell
- pressure buffer
- 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.)
- Active
Links
Classifications
-
- 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
- H01M8/2465—Details of groupings of fuel cells
-
- 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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04776—Pressure; Flow at auxiliary devices, e.g. reformer, compressor, burner
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- 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 discloses a kind of fuel cell end plate, is suitable for the two ends being configured at fuel cell unit, it is characterized in that this end plate comprises outer end plate, pressure buffer and pressure dissipation balancing disk three part; Described pressure buffer is elastomeric element, is vertically set between described outer end plate and pressure dissipation balancing disk.The present invention is regulated by the pressure of therein, solves the inner unbalance stress local pressure of the pile caused because of pile each parts machining error excessive, the problem that pile surrounding apparent size differs greatly; The requirement to each device fabrication tolerance in pile inside can be reduced, effectively reduce the processing cost of the inner each parts of pile, improve production efficiency.Because the pressure self-adjusting of pile inside saves, improve pile life-span and performance.Ensureing, under the condition that apparent size is constant, pile can be met inner due to the space requirement that expands with heat and contract with cold.
Description
Technical field
The present invention relates to field of fuel cell technology, be specifically related to a kind of fuel cell end plate.
Background technology
Fuel cell is high with its energy conversion efficiency, noise is low, low-carbon (LC), zero discharge, flexible and convenient to use, operating temperature is low, energy density advantages of higher, is more and more liked by people and uses.Fuel cell is mainly divided into the five large classes such as phosphate fuel cell (PAFC), Proton Exchange Membrane Fuel Cells (PEMFC), alkaline fuel cell (AFC), molten carbonate fuel cell (MCFC), Solid Oxide Fuel Cell (SOFC).Fuel cell needs multiple cell to be assembled into pile by the mode of series connection usually.The indoor design of pile and mounting technology determine the performance of pile, determine the output of pile.
Fuel cell pile is primarily of compositions such as membrane electrode (MEA), bipolar plates, collector plate, end plate and fastening bolts.Field fixed by fuel cell, and traditional fixed form utilizes two outer end plates many standing screws to be connected and fixed, and this fixed mode requires higher to machining tolerances such as MEA, bipolar plates and end plates, increases the production cost of pile.If the machining accuracy of each parts of pile is inadequate, causes pile inside to be stressed inequality, the scale error of pile surrounding can be caused comparatively large, be not easy to the pile standardization of product-quality indicators and produce; Because pile inside is stressed inequality, the component contact elasticity of pile inside can be caused different, cause the internal resistance of pile to increase, along with pile uses, performance can decline to a great extent.Sometimes, pile inside is stressed inequality, and bipolar plates or MEA can be caused to damage.
Denomination of invention for " for battery system end plate and use the battery system of this end plate " (application number: 200810088784.2), disclose a kind of end plate for battery system, this end plate is that multiple rib structure is prepared in stacked mode, to make end plate, there is stronger structural rigidity, pressure obtains being uniformly distributed on the battery pack, but this structure, when the machining tolerance of MEA and Cell Bipolar plate thickness is larger, still cannot solve the problem of isostasy.
Denomination of invention is " having the fuel cell of well-distributed pressure device " (application number: 01124222.1) disclose a kind of fuel cell with well-distributed pressure device, comprise two end versions, each end plate has a middle section and a peripheral edge margin, fuel cell pack between the middle section being located at this two end plate, be located at the fastening devices on this two end plate, and a well-distributed pressure device, comprise at least one pressure bellows, be fixedly arranged on this battery pile and wherein with between end plate.By the pressure change of well-distributed pressure device adjustment because expanding with heat and contract with cold caused, in this structure, pressure bellows directly contact with battery pile, need the area of pressure bellows almost close to the area of battery pile, complicated structure; Otherwise the change in location of pressure bellows will cause pressure to change, and cannot reach the object of counterpressure.
Denomination of invention is " fuel cell end plate " (application number is 200480001636.2), disclose a kind of fuel cell end plate, comprise first, second structure member, connect multiple vertical member of the first structure member and the second structure member, fuel cell end plate is configured to the surface of fitting with fuel cell and transmits substantially constant pressure with the surface along described fuel cell.At fuel cell end plate distorts or fit in the example of unparalleled surface of terminal fuel cell, the first and second structure members of end plate are substantially parallel transmits substantially invariable pressure with the surface striding across terminal fuel cell.This structure effectively can not solve the pressure balanced problem of inside configuration.
Summary of the invention
Goal of the invention: the object of the invention is to for the deficiencies in the prior art, provides a kind of fuel cell end plate that can make the equilibrium of fuel cell pile internal pressure.
Technical scheme: a kind of fuel cell end plate of the present invention, is suitable for the two ends being configured at fuel cell unit, this end plate comprises outer end plate, pressure buffer and pressure dissipation balancing disk three part; Described pressure buffer is elastomeric element, is vertically set between described outer end plate and pressure dissipation balancing disk.By secure component the end plate compact siro spinning technology at battery pack two ends together, pressure buffer and pressure dissipation balancing disk effectively can regulate the machining tolerance due to MEA and Cell Bipolar plate thickness, the pile surrounding height heterogeneity caused and the phenomenon of inner discontinuity equalization.
In order to prevent pressure buffer from sliding, the medial surface of described outer end plate is provided with pressure buffer fixed leg, one end of pressure buffer is set on pressure buffer fixed leg.
Preferably, described pressure buffer inside is cylindrical structural.
Conveniently pile is fixing, the side of described outer end plate is provided with the T-shaped draw-in groove with drum fastener end adaptation; The side correspondence position of described pressure dissipation balancing disk is provided with draw-in groove adaptive in the middle part of drum securing member.
Preferably, described pressure buffer is that the metal material of elastic performance or nonmetallic materials are made.
The present invention compared with prior art, its beneficial effect is: the present invention is regulated by the pressure of therein, solve the inner unbalance stress local pressure of the pile caused because of pile each parts machining error excessive, the problem that pile surrounding apparent size differs greatly; The requirement to each device fabrication tolerance in pile inside can be reduced, effectively reduce the processing cost of the inner each parts of pile, improve production efficiency.Because the pressure self-adjusting of pile inside saves, improve pile life-span and performance.Ensureing, under the condition that apparent size is constant, pile can be met inner due to the space requirement that expands with heat and contract with cold.
Accompanying drawing explanation
Fig. 1 is tip plate configurations schematic diagram of the present invention;
Fig. 2 is I shape securing member schematic diagram of the present invention;
Fig. 3 is fuel cell pile cut-away view of the present invention.
Embodiment
Below technical solution of the present invention is described in detail, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1: a kind of fuel cell end plate, is suitable for the two ends being configured at fuel cell unit, and this end plate comprises outer end plate 1, pressure buffer 3 and pressure dissipation balancing disk 4 three part; Described pressure buffer 3 is elastomeric element, is vertically set between described outer end plate 1 and pressure dissipation balancing disk 4.
Each pile inside can reasonably arrange pressure buffer 3 according to the size of pile, and pressure buffer 3 is enclosed within pressure buffer fixed leg 2 respectively, so that prevent the slip of pressure buffer 3.Described pressure buffer 3 is cylindrical structural, for the metal material of elastic performance or nonmetallic materials are made.
The side of described outer end plate is provided with the T-shaped draw-in groove 5 with drum securing member 6 end adapter; The side correspondence position of described pressure dissipation balancing disk 4 is provided with draw-in groove adaptive in the middle part of drum securing member 6.
Operation principle: fuel cell is under certain dress heap pressure, pile is pressed onto required height, respectively I shape securing member is stuck in the draw-in groove on end plate surrounding side, then with screw, I shape securing member and end plate are fixed together, form " three-dimensional integrated " pile fixture that this invention is exclusive, ensure that the homogeneity of pile apparent size.Under pressure, pressure buffer has certain deformation, the inside being adjusted pile by the deformation quantity of pressure buffer is stressed, the internal adaptive joint power produced by elastic deformation, conduct to each battery unit of pile inside by pressure dissipation balancing disk, effectively reduce the internal stress that the machining tolerance because of bipolar plates and membrane electrode causes, thus the external dimensions of pile can be adjusted, make it to reach homogeneous.
As mentioned above, although represented with reference to specific preferred embodiment and described the present invention, it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite not departing from claims definition, various change can be made in the form and details to it.
Claims (2)
1. a fuel cell end plate, is suitable for the two ends being configured at fuel cell unit, it is characterized in that this end plate comprises outer end plate, pressure buffer and pressure dissipation balancing disk three part, described pressure buffer is elastomeric element, is vertically set between described outer end plate and pressure dissipation balancing disk, and described pressure buffer inside is cylindrical structural, the medial surface of described outer end plate is provided with pressure buffer fixed leg, one end of pressure buffer is set on pressure buffer fixed leg, the side of described outer end plate is provided with the T-shaped draw-in groove with drum fastener end adaptation, the side correspondence position of described pressure dissipation balancing disk is provided with draw-in groove adaptive in the middle part of drum securing member, respectively I shape securing member is stuck in the draw-in groove on end plate surrounding side, then with screw, I shape securing member and end plate are fixed together, form " three-dimensional integrated " pile fixture, under pressure, pressure buffer has certain deformation, the inside being adjusted pile by the deformation quantity of pressure buffer is stressed, the internal adaptive joint power produced by elastic deformation, conduct to each battery unit of pile inside by pressure dissipation balancing disk, effectively reduce the internal stress that the machining tolerance because of bipolar plates and membrane electrode causes, thus the external dimensions of pile can be adjusted, make it to reach homogeneous.
2. according to fuel cell end plate according to claim 1, it is characterized in that: described pressure buffer is that the metal material of elastic performance or nonmetallic materials are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013203.4A CN103779586B (en) | 2014-01-13 | 2014-01-13 | A kind of fuel cell end plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013203.4A CN103779586B (en) | 2014-01-13 | 2014-01-13 | A kind of fuel cell end plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103779586A CN103779586A (en) | 2014-05-07 |
| CN103779586B true CN103779586B (en) | 2016-01-20 |
Family
ID=50571593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410013203.4A Active CN103779586B (en) | 2014-01-13 | 2014-01-13 | A kind of fuel cell end plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103779586B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105774505B (en) * | 2016-03-02 | 2018-01-09 | 合肥国轩高科动力能源有限公司 | A kind of power battery box latch system |
| US20190097251A1 (en) * | 2016-04-20 | 2019-03-28 | Sumitomo Electric Industries, Ltd. | Redox flow battery transport structure, redox flow battery transport method, and redox flow battery |
| CN105932318A (en) * | 2016-06-08 | 2016-09-07 | 北京氢璞创能科技有限公司 | Electric pile packaging structure |
| US10468707B2 (en) * | 2017-05-04 | 2019-11-05 | Gm Global Technology Operations Llc. | Fuel cell stack assembly |
| US10581041B2 (en) * | 2017-10-24 | 2020-03-03 | Ford Global Technologies, Llc | Battery array plate assembly with pressure retention pad |
| CN109065935B (en) * | 2018-09-21 | 2024-02-02 | 南京大学昆山创新研究院 | Adjustable fuel cell end plate assembly and electric pile formed by same |
| CN109378504B (en) * | 2018-12-05 | 2024-03-26 | 江苏氢电新能源有限公司 | Pile end plate with gas pressure buffering and humidifying functions |
| CN111384415B (en) * | 2020-03-20 | 2021-08-03 | 武汉理工大学 | Novel fuel monocell end plate structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245981A (en) * | 1998-08-19 | 2000-03-01 | 松下电器产业株式会社 | Solid macromolecular electrolyte type fuel cell |
| CN101542816A (en) * | 2007-01-09 | 2009-09-23 | 松下电器产业株式会社 | Fuel cell |
| CN101764240A (en) * | 2008-12-26 | 2010-06-30 | 财团法人工业技术研究院 | Fuel battery pack |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100514375B1 (en) * | 2003-10-24 | 2005-09-13 | 현대자동차주식회사 | A device for tightening stacks of fuel cell in electric vehicles |
-
2014
- 2014-01-13 CN CN201410013203.4A patent/CN103779586B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245981A (en) * | 1998-08-19 | 2000-03-01 | 松下电器产业株式会社 | Solid macromolecular electrolyte type fuel cell |
| CN101542816A (en) * | 2007-01-09 | 2009-09-23 | 松下电器产业株式会社 | Fuel cell |
| CN101764240A (en) * | 2008-12-26 | 2010-06-30 | 财团法人工业技术研究院 | Fuel battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103779586A (en) | 2014-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103779586B (en) | A kind of fuel cell end plate | |
| CN203659993U (en) | Fuel battery fixing device | |
| US9985324B2 (en) | Elastic device for the temperature control of battery cells | |
| US20210313588A1 (en) | Electrode structure including electrode fiber having higher density of vertical tows to parallel tows, flow battery stack including the same, and sealing structure including sealing gaskets connected by sealing wire | |
| CN114068978A (en) | Air-cooled fuel cell bipolar plate with parallel hydrogen-air flow fields | |
| CN203659992U (en) | Fuel battery end plate | |
| CN206629372U (en) | A kind of heat abstractor of three-phase electric energy metering case | |
| CN207039439U (en) | A kind of transducer drive plate of high efficiency and heat radiation | |
| CN206727169U (en) | The device for being easy to fuel cell unit to place | |
| CN202586736U (en) | High-precision current limiting circuit of DC/DC (Direct Current/Direct Current) converter | |
| CN210403917U (en) | Fuel cell stack fixing device | |
| CN210298288U (en) | Industrial control host | |
| CN206906426U (en) | A kind of pallet for lithium battery test | |
| CN208174575U (en) | A kind of double track circular arc type piezoelectric type energy collector | |
| CN102480906A (en) | Circuit module and electronic device applying circuit module | |
| CN203731927U (en) | Collector fixing structure suitable for shell-and-tube heat exchanger | |
| CN105406017A (en) | Drawer type battery pack unit convenient to replace single battery plate | |
| CN218735751U (en) | Heat abstractor and concentrator of concentrator | |
| CN211959106U (en) | Clamp for solar cell panel | |
| CN221041169U (en) | End plate for fuel cell | |
| CN208000535U (en) | A kind of convenient industrial control computer | |
| CN108323095A (en) | Data processing equipment | |
| CN209571654U (en) | A kind of sensor structure | |
| CN209016146U (en) | A kind of battery structure and carrier arrangement | |
| CN216214934U (en) | Shock attenuation switch board of high stability ability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Suzhou City, Jiangsu Province, Yushan Town, Kunshan City, 215313 Yu Yang Road No. 299, room 3 Patentee after: Jiangsu hydrogen power new energy Co., Ltd. Address before: 215300 Jiangsu Province, Kunshan City, Yushan City, Yu Yang Road, No. 777, China Energy Saving Industrial Park, building 20, building 3, building Patentee before: Jiangsu Lv Yao fuel cell system Manufacturing Co., Ltd |