JPS6316562A - Cooling device for fuel cell - Google Patents
Cooling device for fuel cellInfo
- Publication number
- JPS6316562A JPS6316562A JP61161241A JP16124186A JPS6316562A JP S6316562 A JPS6316562 A JP S6316562A JP 61161241 A JP61161241 A JP 61161241A JP 16124186 A JP16124186 A JP 16124186A JP S6316562 A JPS6316562 A JP S6316562A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- shape memory
- cooling
- gas passage
- memory alloy
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 26
- 239000000446 fuel Substances 0.000 title claims description 5
- 239000000112 cooling gas Substances 0.000 claims abstract description 19
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 abstract description 14
- 238000009826 distribution Methods 0.000 abstract description 8
- 230000009466 transformation Effects 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 230000003446 memory effect Effects 0.000 abstract description 2
- 230000002441 reversible effect Effects 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- H01M8/04—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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Fuel Cell (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
Abstract
Description
【発明の詳細な説明】
ビ）産業上の利用分野
本発明は燃料電池の冷却袋！ＩｔＫ関するものであるＯ
（嗜 従来技術
電池スタックは反応熱により発熱する六め、規定作動温
度に維持すべく冷却される。一般（で電池スタックに介
在する冷却板のガス通路だ冷却ガスを送り、スタック熱
を奪って高温となつ九排ガスを熱交換器で冷却して後再
びスタックに送ることＫより電池スタックを冷却する。[Detailed Description of the Invention] B) Industrial Application Field The present invention is a cooling bag for fuel cells! Regarding ItK, prior art battery stacks generate heat due to reaction heat, and are cooled to maintain a specified operating temperature. The battery stack is cooled by removing stack heat and cooling the high-temperature exhaust gas with a heat exchanger and then sending it to the stack again.
しかし電池スタックの積重方向に介在する多数の各冷却
板〈冷却ガスが均一に分配され難いと共に特に電池スタ
ックの上下端板からの放熱により電池スタック上下両端
部の温度が中央部よりも低くなる順向がある。又、電池
スタックの積重方向と直交する横方向への冷却ガスの分
配にも不均一性が生ずるなどの原因により、電池スタッ
クの上下・左右の温度勾配が発生する。電池の特性は温
度による影響が大きいので、前記のようＶＣ温度分布が
不均一くなると電池特性の劣化ひいては寿命の低下をも
たらすなどの問題があつ念。However, due to the large number of cooling plates interposed in the stacking direction of the battery stack, it is difficult for the cooling gas to be distributed uniformly, and the temperature at both the upper and lower ends of the battery stack is lower than that at the center due to heat dissipation from the upper and lower end plates of the battery stack. There is a positive trend. Furthermore, temperature gradients occur vertically and horizontally in the battery stack due to non-uniform distribution of the cooling gas in the lateral direction perpendicular to the stacking direction of the battery stack. Since battery characteristics are greatly affected by temperature, if the VC temperature distribution becomes uneven as described above, problems such as deterioration of battery characteristics and shortened lifespan may occur.
０→ 目 的
本発明は前記問題点を解消し、電池スタックの全面に亘
る温度分布を均一化することを目的とするものである。0→ Purpose The present invention aims to solve the above-mentioned problems and to make the temperature distribution uniform over the entire surface of the battery stack.
に）問題点を解決するための手段
本発明は電池スタック釦介在する冷却板の各冷却ガス通
路に１該通路面が所定温度以上のときガス通路面に当接
状態にあり、且前記所定温度以下でガス通路面より部分
的に立上って冷却ガス流量を絞る形状記憶合金より”な
る制御板を配設せしめ九ものである。B.) Means for Solving the Problems The present invention provides a cooling gas passage for each cooling gas passage of a cooling plate interposed in a battery stack button, which is in contact with the gas passage surface when the passage surface is at a predetermined temperature or higher, and when the cooling plate is at the predetermined temperature. In the following, a control plate made of a shape memory alloy is provided which partially rises from the gas passage surface and throttles the flow rate of the cooling gas.
（ホ）実施例
本発明の実施例をりん駿燃料電池を例にとって説明する
。(E) Embodiment An embodiment of the present invention will be explained by taking a Rinshun fuel cell as an example.
電池スタックｆｉｌは多数のセル積重体からなり、数セ
ル毎に冷却ガス通路（２）を有する冷却板（３）を介在
させ、上下端板（４）（４１間で積重方向く締付けられ
る。電池スタックｆｌ）の対向積重周面には、冷却ガス
の入口側及び出口側各マニホルドｆ５）（！が取付けら
れ、これらマニホルド＋５１ ［５１間は熱交換器（６
）及びブロワ（ア）を含む管路（８）で、連績されてい
る。The battery stack fil consists of a large number of stacked cells, and is tightened in the stacking direction between upper and lower end plates (4) (41) with cooling plates (3) having cooling gas passages (2) interposed between them for every few cells. Cooling gas inlet and outlet manifolds f5) (!) are attached to the opposing stacked circumferential surfaces of the battery stack fl), and a heat exchanger (6) is installed between these manifolds +51
) and the blower (A) are connected in a conduit (8).
電池運転時入口側マニホルド（６）より冷却板（３）の
冷却ガス通路（２ＶＣ配分された冷去ｐガスは、電池反
応熱を奪って電池スタックｆｉ＋を冷却し、約１８０℃
に昇温した冷却ガスは、出口マニホルド（６）を経て熱
交換器（６）で約１４（ＩＫ冷却されて後再びブロワ（
７）より電池スタック（１）Ｋ循環供給される。During battery operation, the cooling gas passage (2 VC distributed) from the inlet side manifold (6) to the cooling plate (3) cools the battery stack fi+ by removing the heat of battery reaction, and cools the battery stack fi+ to approximately 180°C.
The cooling gas, whose temperature has been raised to
7) K is circulated and supplied to the battery stack (1).
前記各冷却板（３）は、二分割され九炭素質プレートを
耐熱導電性接着剤で接合してガス通路（２）を形成する
が、この接合前に予め一方のプレートのガス通路面に、
形状記憶合金からなる流量制御板（９）を配役する。こ
＼で使用する制御板（９）ハ可逆的形状記憶効果を有し
、その変態温度は電池の規定作動温度が１９０℃の場合
約１８０℃前後のもので例えばＣｕ−１３，５Ｚｎ−８
Ａｊ（ｗｔ％）合金板である。Each of the cooling plates (3) is divided into two and nine carbonaceous plates are bonded together using a heat-resistant conductive adhesive to form a gas passage (2), but before this bonding, the gas passage surface of one plate is preliminarily coated with
A flow control plate (9) made of a shape memory alloy is provided. The control plate (9) used here has a reversible shape memory effect, and its transformation temperature is around 180°C when the specified operating temperature of the battery is 190°C. For example, it is made of Cu-13,5Zn-8.
Aj (wt%) alloy plate.
この形状記憶合金板は、第２図江示すよう予めく字状に
変形して取付基部（９１）を耐熱導電性接着剤でガス通
路面に接着しておき、前記変態温度以上になると折曲部
（９２）が通路面に当接するよう復元する。従って前記
変態温度より高い冷却板（３）は、制御板（９）がガス
通路（２）の流量をさま六げることがないので良く冷却
される。This shape memory alloy plate is deformed into a dogleg shape in advance as shown in Figure 2, and the mounting base (91) is adhered to the gas passage surface with a heat-resistant conductive adhesive, and when the temperature exceeds the transformation temperature, it bends. The portion (92) is restored so as to come into contact with the passage surface. Therefore, the cooling plate (3) whose temperature is higher than the transformation temperature is well cooled because the control plate (9) does not obstruct the flow rate of the gas passage (2).
一方冷却板（３）が変態温度以下であれば制御板（９）
の折曲部（９りはそのままの状態を保って冷却ガス流量
を絞り、冷却を抑制する。On the other hand, if the cooling plate (3) is below the transformation temperature, the control plate (9)
The bent portion (9) remains in the same state to throttle the cooling gas flow rate and suppress cooling.
このようにしてセル温度の高い（低い）部分の冷却板（
３）は、制御板（９）の作用により冷却ガスの流量が大
（小）となるよう制御され、電池スタックの積重方向温
度分布を略均−化する。同様に同一冷却板（３）の各ガ
ス通路（２）もセル温度及び冷却ガスの分配状態だ応じ
て第３図だ示すよう制御板（９）により冷却ガス流量を
制御し、電池スタックの水平方向温度分布も均一化され
る。In this way, the cooling plate (
3), the flow rate of the cooling gas is controlled to be large (small) by the action of the control plate (9), and the temperature distribution in the stacking direction of the battery stack is approximately equalized. Similarly, the cooling gas flow rate of each gas passage (2) of the same cooling plate (3) is controlled by the control plate (9) according to the cell temperature and the distribution state of the cooling gas, as shown in Figure 3, so that the battery stack is horizontally The directional temperature distribution is also made uniform.
第４図の他実施例は、各ガス通路（２）に２個の制御板
＋９１ ＋９１を流通方向に間隔を存して配置した場合
を示す。この場合下流側の制御板（９）は中挟とし、上
流側の制御板（９）と協同して冷却ガス流量を微調節す
ることができる。即ち冷却能は、両方の制御板＋９１
ｔｊ＋が共に水平又は立上る場合、いづれか一方の制御
板（９）もしくけ（イ）のみ立上る場合及びいづハか一
方が水平で他方が立上る場合によって、多段階に制御さ
れる。Another embodiment in FIG. 4 shows a case in which two control plates +91 +91 are arranged in each gas passage (2) with an interval in the flow direction. In this case, the control plate (9) on the downstream side is interposed and can finely adjust the cooling gas flow rate in cooperation with the control plate (9) on the upstream side. In other words, the cooling capacity is both control boards + 91
When tj+ are both horizontal or rising, when only one of the control plates (9) or the mechanism (a) rises, and when one of them is horizontal and the other rises, multi-stage control is performed.
第′４図は単に作動原理を説明する九め一つの冷却板に
ついて示したが、この方式による冷却板により電池スタ
ック上下方向の温度分布が微調整されることは容易に理
解されるだろう。Although FIG. '4 merely shows the ninth cooling plate to explain the operating principle, it will be easily understood that the temperature distribution in the vertical direction of the battery stack can be finely adjusted by the cooling plate of this type.
（へ）効 果
上述の如く本発明によれば冷却ガス通路のガス流量がセ
ル温度に応動する形状記憶合金より々る制御板で調節さ
れるので、電池スタック全面ば亘る温度分布が略均−化
され、電池特性及び寿命の向上を達成することができる
。(F) Effects As described above, according to the present invention, the gas flow rate in the cooling gas passage is adjusted by a control plate made of a shape memory alloy that responds to the cell temperature, so the temperature distribution over the entire surface of the battery stack is approximately uniform. battery characteristics and service life can be achieved.
第１図は本発明装置を備える燃料電池の冷却システム図
、！２図は本発明による冷却板の断面図、第３図は同上
冷却板を備える電池スタックの要部正面図、第４図は他
実施例による冷却板の内部を示す平面図である。
１：電池スタック、２：冷却ガス通路、３：冷却板、５
．５：マニホルド、６：熱交換器、７：ブロワ、９・ｄ
：制御板、９１：取付基部、９２：折曲部（立上り部）Figure 1 is a diagram of the cooling system of a fuel cell equipped with the device of the present invention. FIG. 2 is a sectional view of a cooling plate according to the present invention, FIG. 3 is a front view of a main part of a battery stack including the same cooling plate, and FIG. 4 is a plan view showing the inside of a cooling plate according to another embodiment. 1: Battery stack, 2: Cooling gas passage, 3: Cooling plate, 5
．． 5: Manifold, 6: Heat exchanger, 7: Blower, 9・d
: Control board, 91: Mounting base, 92: Bent part (rising part)
Claims (1)
却板を介在させ、前記冷却板の各冷却ガス通路に、その
通路面が所定温度以上のとき前記通路面に当接状態にあ
り、且前記所定温度以下で前記通路面より部分的に立上
つて冷却ガス流量を絞る形状記憶合金よりなる制御板を
配設したことを特徴とする燃料電池の冷却装置。(1) A cooling plate is interposed between every few cells in a battery stack consisting of stacked cells, and the cooling plate is in contact with each cooling gas passageway surface when the passageway surface is at a predetermined temperature or higher, A cooling device for a fuel cell, further comprising a control plate made of a shape memory alloy that partially rises from the passage surface to throttle the flow rate of the cooling gas when the temperature is below the predetermined temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61161241A JPS6316562A (en) | 1986-07-09 | 1986-07-09 | Cooling device for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61161241A JPS6316562A (en) | 1986-07-09 | 1986-07-09 | Cooling device for fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6316562A true JPS6316562A (en) | 1988-01-23 |
Family
ID=15731329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61161241A Pending JPS6316562A (en) | 1986-07-09 | 1986-07-09 | Cooling device for fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6316562A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5832988A (en) * | 1981-08-21 | 1983-02-26 | Hitachi Ltd | Sealing device for scroll compressor |
| JPH0240865A (en) * | 1988-08-01 | 1990-02-09 | Hitachi Ltd | Temperature control device of fuel cell |
| JPH0422788A (en) * | 1990-05-17 | 1992-01-27 | Daikin Ind Ltd | Horizontal open type compressor |
| JPH07249419A (en) * | 1994-03-08 | 1995-09-26 | Hitachi Ltd | Fuel cell |
| JP2005302658A (en) * | 2004-04-15 | 2005-10-27 | Toyota Motor Corp | Cell, stack using this, fuel cell and vehicle |
| JP2005327672A (en) * | 2004-05-17 | 2005-11-24 | Toyota Motor Corp | Fuel battery system |
| JP2005536033A (en) * | 2002-08-13 | 2005-11-24 | ダイムラークライスラー・アクチェンゲゼルシャフト | Control of fluid flow in electrochemical cells |
| JP2010182509A (en) * | 2009-02-04 | 2010-08-19 | Toyota Boshoku Corp | Cooling system of fuel cell |
| WO2012131267A1 (en) * | 2011-03-30 | 2012-10-04 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Fuel-cell stack comprising a stack of cells and bipolar conductive plates |
| DE102013206323B4 (en) | 2012-12-24 | 2024-05-16 | Hyundai Motor Company | Active thermal management system for a fuel cell stack |
-
1986
- 1986-07-09 JP JP61161241A patent/JPS6316562A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH044476B2 (en) * | 1981-08-21 | 1992-01-28 | ||
| JPS5832988A (en) * | 1981-08-21 | 1983-02-26 | Hitachi Ltd | Sealing device for scroll compressor |
| JPH0240865A (en) * | 1988-08-01 | 1990-02-09 | Hitachi Ltd | Temperature control device of fuel cell |
| JPH0422788A (en) * | 1990-05-17 | 1992-01-27 | Daikin Ind Ltd | Horizontal open type compressor |
| JPH07249419A (en) * | 1994-03-08 | 1995-09-26 | Hitachi Ltd | Fuel cell |
| JP4780579B2 (en) * | 2002-08-13 | 2011-09-28 | ダイムラー・アクチェンゲゼルシャフト | Control of fluid flow in electrochemical cells |
| JP2005536033A (en) * | 2002-08-13 | 2005-11-24 | ダイムラークライスラー・アクチェンゲゼルシャフト | Control of fluid flow in electrochemical cells |
| JP2005302658A (en) * | 2004-04-15 | 2005-10-27 | Toyota Motor Corp | Cell, stack using this, fuel cell and vehicle |
| JP2005327672A (en) * | 2004-05-17 | 2005-11-24 | Toyota Motor Corp | Fuel battery system |
| JP4576880B2 (en) * | 2004-05-17 | 2010-11-10 | トヨタ自動車株式会社 | Fuel cell system |
| JP2010182509A (en) * | 2009-02-04 | 2010-08-19 | Toyota Boshoku Corp | Cooling system of fuel cell |
| WO2012131267A1 (en) * | 2011-03-30 | 2012-10-04 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Fuel-cell stack comprising a stack of cells and bipolar conductive plates |
| FR2973583A1 (en) * | 2011-03-30 | 2012-10-05 | Peugeot Citroen Automobiles Sa | FUEL CELL COMPRISING A STACK OF CELLS AND BIPOLAR CONDUCTIVE PLATES |
| DE102013206323B4 (en) | 2012-12-24 | 2024-05-16 | Hyundai Motor Company | Active thermal management system for a fuel cell stack |
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