JP5332989B2 - 液体タンクおよび燃料電池 - Google Patents
液体タンクおよび燃料電池 Download PDFInfo
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- JP5332989B2 JP5332989B2 JP2009164048A JP2009164048A JP5332989B2 JP 5332989 B2 JP5332989 B2 JP 5332989B2 JP 2009164048 A JP2009164048 A JP 2009164048A JP 2009164048 A JP2009164048 A JP 2009164048A JP 5332989 B2 JP5332989 B2 JP 5332989B2
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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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
- H01M8/04216—Reactant storage and supply, e.g. means for feeding, pipes characterised by the choice for a specific material, e.g. carbon, hydride, absorbent
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/268—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors mounting arrangements of probes
-
- 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
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
-
- 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
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0438—Pressure; Ambient pressure; Flow
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Fuel Cell (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
また、保護層に対する液体の接触角の余弦が負となっているので、表面張力によって保護層の表面が液体で濡れた状態が続いてしまうことが抑えられ、正しい体積が計測される。
により構成されている。プロトン伝導材料としては、ポリパーフルオロアルキルスルホン酸系プロトン伝導材料(例えば、デュポン社製「Nafion(登録商標)」)、ポリイミドスルホン酸などの炭化水素系プロトン伝導材料、またはフラーレン系プロトン伝導材料などが挙げられる。
る。これにより、燃料電池本体110と気化部122との間に一定の空間Sが設けられ、この空間Sによって気化部122から噴出する燃料が更に拡散され、燃料電池本体110に対して均一に燃料が供給されるようになっている。
上記実施の形態と同様にして、19×35mmサイズの検出素子1を作製した。その際、第1基板10ないし第4基板として四層のプリント基板を用い、第1基板10には、図5に示したような一対の櫛形の検出電極12A,12Bを互いに間隔をあけて噛み合せるように形成した。第2基板20には、図6に示したベタ、または図8に示したメッシュ状のシールド電極22を形成した。第3基板30にはビアのみを形成した。第4基板40には、図10に示したように、3つのランド42A〜42Cを形成した。3つのランド42A〜42Cのうち、2つのランド42A,42Bは検出電極12A,12Bにそれぞれ接続し、残りの一つのランド42Cはシールド電極22に接続した。
第1基板10の表面に保護層14として厚さ9μmのPET樹脂よりなる薄膜フィルムを溶着により貼り付けたことを除いては、No.8と同様にして検出素子1を作製した。得られた検出素子1(No.8改)について、No.1〜No.8と同様の条件で交流電圧をかけて電流の測定を行った。得られた結果を表4に示す。
Claims (14)
- 液体を貯留する液体容器部と、前記液体容器部に貯留された液体の体積を検出する検出素子とを備え、
前記検出素子は、
表面に浮遊静電容量を検知するための一対の検出電極を有し、前記一対の検出電極が前記液体容器部内の液体と保護層を介して間接的に接触する第1基板と、
シールド電極を有すると共に前記第1基板の裏面の側に配置された第2基板と
を有し、
前記保護層に対する前記液体の接触角の余弦が負である
液体タンク。 - 前記液体容器部は複数の面を有し、
前記一対の検出電極が、前記液体容器部の複数の面のうち少なくとも一つの面のほぼ全体を占めている
請求項1記載の液体タンク。 - 前記一対の検出電極は、互いに間隔をあけて噛み合わせられた櫛歯形状を有する
請求項1記載の液体タンク。 - 前記シールド電極は、ベタ,メッシュまたはスリットの形状を有する
請求項1記載の液体タンク。 - 前記検出素子が、前記第1基板および前記第2基板の裏面の側に、前記一対の検出電極の浮遊静電容量を測定する容量測定回路搭載プリント基板を有する
請求項1記載の液体タンク。 - 前記保護層は、樹脂よりなる薄膜フィルム、または塗料層により構成されている
請求項1記載の液体タンク。 - 前記液体容器部内の前記液体を汲み上げる液体ポンプを備え、
前記容量測定回路は、
前記液体ポンプの動作履歴を記憶する記憶部と、
前記記憶部に記憶された前記動作履歴に基づいて前記液体の汲み上げ量を算出すると共に、前記汲み上げ量と前記浮遊静電容量との双方に基づいて前記液体の体積を算出する算出部と
を備えた請求項5記載の液体タンク。 - 前記液体容器部の前記検出素子が設けられた面に、鉛直方向に対する前記液体容器部の姿勢を計測する加速度センサが取り付けられており、
前記容量測定回路は、前記加速度センサにより計測された前記液体容器部の姿勢に関する情報に基づいて前記液体の体積を算出する
請求項5または7記載の液体タンク。 - 前記容量測定回路は、前記第1基板の法線方向の加速度がゼロである場合に前記液体の体積を算出する
請求項8記載の液体タンク。 - 前記液体容器部は、燃料電池用の液体燃料を貯留する
請求項1記載の液体タンク。 - 燃料電池本体と、液体タンクを有する燃料カートリッジとを備え、
前記液体タンクは、液体を貯留する液体容器部と、前記液体容器部に貯留された液体の体積を検出する検出素子とを備え、
前記検出素子は、
表面に浮遊静電容量を検知するための一対の検出電極を有し、前記一対の検出電極が前記液体容器部内の液体と保護層を介して間接的に接触する第1基板と、
シールド電極を有すると共に前記第1基板の裏面の側に配置された第2基板と
を有し、
前記保護層に対する前記液体の接触角の余弦が負である
燃料電池。 - 前記検出素子が、前記第1基板および前記第2基板の裏面の側に、前記一対の検出電極の浮遊静電容量を測定する容量測定回路搭載プリント基板を有する
請求項11記載の燃料電池。 - 前記液体容器部の前記検出素子が設けられた面に、鉛直方向に対する前記液体容器部の姿勢を計測する加速度センサが取り付けられており、
前記容量測定回路は、前記加速度センサにより計測された前記液体容器部の姿勢に関する情報に基づいて前記液体の体積を算出する
請求項12記載の燃料電池。 - 前記容量測定回路は、前記第1基板の法線方向の加速度がゼロである場合に前記液体の体積を算出する
請求項13記載の燃料電池。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009164048A JP5332989B2 (ja) | 2009-07-10 | 2009-07-10 | 液体タンクおよび燃料電池 |
US13/382,259 US8850884B2 (en) | 2009-07-10 | 2010-07-02 | Liquid tank and fuel cell |
PCT/JP2010/061313 WO2011004765A1 (ja) | 2009-07-10 | 2010-07-02 | 液体タンクおよび燃料電池 |
Applications Claiming Priority (1)
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JP2009164048A JP5332989B2 (ja) | 2009-07-10 | 2009-07-10 | 液体タンクおよび燃料電池 |
Publications (2)
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JP2011017680A JP2011017680A (ja) | 2011-01-27 |
JP5332989B2 true JP5332989B2 (ja) | 2013-11-06 |
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JP2009164048A Expired - Fee Related JP5332989B2 (ja) | 2009-07-10 | 2009-07-10 | 液体タンクおよび燃料電池 |
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US (1) | US8850884B2 (ja) |
JP (1) | JP5332989B2 (ja) |
WO (1) | WO2011004765A1 (ja) |
Families Citing this family (5)
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CN103328974B (zh) * | 2010-07-16 | 2015-08-12 | 康奈尔大学 | 基于超声变幅杆致动的微探针的自校准粘度传感器 |
JP5380579B2 (ja) * | 2012-05-31 | 2014-01-08 | 学校法人東日本学園・北海道医療大学 | 注射シミュレータ |
JP6209367B2 (ja) * | 2013-06-07 | 2017-10-04 | 矢崎総業株式会社 | 液面レベルセンサ |
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US8549910B2 (en) * | 2010-01-07 | 2013-10-08 | Federal-Mogul Corporation | Fuel system electro-static potential differential level sensor element and hardware/software configuration |
DE102010025118A1 (de) * | 2010-06-25 | 2011-12-29 | Siemens Healthcare Diagnostics Products Gmbh | Berührungslose Füllstandsmessung von Flüssigkeiten |
US8590375B2 (en) * | 2011-03-22 | 2013-11-26 | Rochester Gauges, Inc. | Self-calibrating capacitive liquid level sensor assembly and method |
KR20120130894A (ko) * | 2011-05-24 | 2012-12-04 | 삼성전자주식회사 | 수위 감지 장치, 이를 포함하는 급수 호스 및 세탁기 |
US8549764B2 (en) * | 2011-09-23 | 2013-10-08 | Lexmark International, Inc. | Fluid tilt sensor within ink tank supply item for micro-fluid applications |
US8635908B2 (en) * | 2011-09-23 | 2014-01-28 | Lexmark International, Inc. | Fluid tilt sensor within ink tank supply item for micro-fluid applications |
-
2009
- 2009-07-10 JP JP2009164048A patent/JP5332989B2/ja not_active Expired - Fee Related
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2010
- 2010-07-02 US US13/382,259 patent/US8850884B2/en active Active
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US20120111107A1 (en) | 2012-05-10 |
WO2011004765A1 (ja) | 2011-01-13 |
US8850884B2 (en) | 2014-10-07 |
JP2011017680A (ja) | 2011-01-27 |
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