JP7035833B2 - 燃料電池車両 - Google Patents
燃料電池車両 Download PDFInfo
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- JP7035833B2 JP7035833B2 JP2018113347A JP2018113347A JP7035833B2 JP 7035833 B2 JP7035833 B2 JP 7035833B2 JP 2018113347 A JP2018113347 A JP 2018113347A JP 2018113347 A JP2018113347 A JP 2018113347A JP 7035833 B2 JP7035833 B2 JP 7035833B2
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- fuel cell
- ion exchanger
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- cell vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0007—Measures or means for preventing or attenuating collisions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
- B60L50/71—Arrangement of fuel cells within vehicles specially adapted for electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
- B60L50/72—Constructional details of fuel cells specially adapted for electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
- B60L58/32—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
- B60L58/33—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by cooling
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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
-
- 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
- H01M8/04029—Heat exchange using liquids
-
- 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
- H01M8/04044—Purification of heat exchange media
-
- 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
- H01M8/04701—Temperature
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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
- H01M8/04298—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
- H01M8/04791—Concentration; Density
- H01M8/04813—Concentration; Density of the coolant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0411—Arrangement in the front part of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
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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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Landscapes
- Engineering & Computer Science (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel Cell (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Description
図1は、実施の形態にかかる燃料電池車両のフロントルーム付近の概要を説明するための上面図である。図1に示すように、燃料電池車両1のフロントルーム10には、燃料電池スタック11、高電圧部品12、イオン交換器13、及びラジエータ14が収容されている。燃料電池車両1のフロントルーム10付近の左側および右側にはそれぞれ前輪19が配置されている。なお、図1では、本発明の説明に必要な構成要素のみを示しており、これ以外の構成要素については図示を省略している。
10 フロントルーム
11 燃料電池スタック
12 高電圧部品
13 イオン交換器
14 ラジエータ
15 スタックフレーム
16 突出部
17 クラッシュボックス
19 前輪
21 本体部
22 キャップ部
23、25 取り付け部
24、26 締結部
27 後方部
31 傾斜部
32 傾斜面
41、42、43、44 側壁
46 イオン交換樹脂
47 メッシュステー
51 ラジエータ本体
52 ファン
53 サイドプレート
54 ファンシュラウド
55 ラジエータサポートアッパー
57 バリア
71 サスペンションメンバー
72、73 支持部材
Claims (5)
- スタックフレームの上部に固定された燃料電池スタックと、
前記燃料電池スタックの上部に固定された高電圧部品と、
前記燃料電池スタックおよび前記高電圧部品の前方に配置され、前記燃料電池スタックを冷却する冷却液に含まれるイオンを除去するイオン交換器と、がフロントルームに収容された燃料電池車両であって、
前記イオン交換器は、本体部と、当該本体部の上側に設けられ、前記本体部よりも剛性の高いキャップ部と、を備え、
前記スタックフレームは前記燃料電池スタックよりも前方に突出するとともに、当該突出している部分の上側に傾斜部を備え、
前記傾斜部の傾斜面は鉛直方向上側に対して後方に傾いており、前記燃料電池車両の前突時に前記イオン交換器が後方に変位した際に、前記イオン交換器の下端の後方部が前記傾斜部の傾斜面に沿ってスライドして前記イオン交換器が斜め上方向に変位することで、前記イオン交換器の前記キャップ部が前記高電圧部品よりも鉛直方向上側の位置となる、
燃料電池車両。 - 前記イオン交換器の下端の後方部には、前記傾斜部の傾斜面と平行な傾斜面が形成されている、請求項1に記載の燃料電池車両。
- 前記イオン交換器の前記本体部は、前記燃料電池車両の前突時に前記イオン交換器の前記本体部が破損する荷重よりも強い耐荷重で前記燃料電池スタックの前方に固定されている、請求項1または2に記載の燃料電池車両。
- 前記イオン交換器の前記本体部は、前記本体部の前後方向における側壁の肉厚よりも前記本体部の左右方向における側壁の肉厚のほうが薄くなるように構成されている、請求項1~3のいずれか一項に記載の燃料電池車両。
- 前記イオン交換器の前記本体部は、当該本体部の内部において前記冷却液を分流するセパレータを備え、
前記イオン交換器の前方にはラジエータが配置されており、
前記ラジエータおよび前記イオン交換器は、前記ラジエータが備えるサイドプレート、ファンシュラウド、及びラジエータサポートアッパーの少なくとも一つの鉛直方向における位置が、前記イオン交換器の前記セパレータおよび前記キャップ部の少なくとも一つの鉛直方向における位置と重ならないように配置されている、
請求項1~4のいずれか一項に記載の燃料電池車両。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018113347A JP7035833B2 (ja) | 2018-06-14 | 2018-06-14 | 燃料電池車両 |
DE102019111054.8A DE102019111054A1 (de) | 2018-06-14 | 2019-04-29 | Brennstoffzellenfahrzeug |
US16/408,541 US11040629B2 (en) | 2018-06-14 | 2019-05-10 | Fuel cell vehicle |
CN201910505186.9A CN110605965A (zh) | 2018-06-14 | 2019-06-12 | 燃料电池车辆 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018113347A JP7035833B2 (ja) | 2018-06-14 | 2018-06-14 | 燃料電池車両 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019216051A JP2019216051A (ja) | 2019-12-19 |
JP7035833B2 true JP7035833B2 (ja) | 2022-03-15 |
Family
ID=68724798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2018113347A Active JP7035833B2 (ja) | 2018-06-14 | 2018-06-14 | 燃料電池車両 |
Country Status (4)
Country | Link |
---|---|
US (1) | US11040629B2 (ja) |
JP (1) | JP7035833B2 (ja) |
CN (1) | CN110605965A (ja) |
DE (1) | DE102019111054A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7095556B2 (ja) * | 2018-10-29 | 2022-07-05 | トヨタ自動車株式会社 | 燃料電池車両 |
JP2021074688A (ja) * | 2019-11-12 | 2021-05-20 | トヨタ紡織株式会社 | イオン交換器 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012004829A1 (ja) | 2010-07-06 | 2012-01-12 | トヨタ自動車株式会社 | 燃料電池の搭載構造 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003173790A (ja) | 2001-12-06 | 2003-06-20 | Honda Motor Co Ltd | 車載用燃料電池システム |
JP2003267063A (ja) * | 2002-03-19 | 2003-09-25 | Nissan Motor Co Ltd | 自動車前部の燃料電池保護構造 |
US20080246289A1 (en) * | 2007-04-05 | 2008-10-09 | Russell Dale Skinner | Vehicle radiator guard and method of fabricating the same |
JP5268037B2 (ja) * | 2009-05-28 | 2013-08-21 | トヨタ自動車株式会社 | 燃料電池システムおよび車両 |
US8408345B2 (en) * | 2010-02-15 | 2013-04-02 | Toyota Jidosha Kabushiki Kaisha | Moving body equipped with fuel cell |
JP2014076716A (ja) * | 2012-10-10 | 2014-05-01 | Honda Motor Co Ltd | 燃料電池搭載車両 |
JP5831597B1 (ja) | 2014-06-06 | 2015-12-09 | トヨタ自動車株式会社 | 電動車両 |
JP2016153288A (ja) * | 2015-02-20 | 2016-08-25 | トヨタ自動車株式会社 | 燃料電池スタックの搭載構造 |
JP6260797B2 (ja) * | 2015-10-13 | 2018-01-17 | トヨタ自動車株式会社 | 燃料電池車両 |
JP6451683B2 (ja) | 2016-04-15 | 2019-01-16 | トヨタ自動車株式会社 | 燃料電池車両の配線構造 |
JP6617685B2 (ja) * | 2016-11-22 | 2019-12-11 | 豊田合成株式会社 | イオン交換器 |
-
2018
- 2018-06-14 JP JP2018113347A patent/JP7035833B2/ja active Active
-
2019
- 2019-04-29 DE DE102019111054.8A patent/DE102019111054A1/de not_active Withdrawn
- 2019-05-10 US US16/408,541 patent/US11040629B2/en active Active
- 2019-06-12 CN CN201910505186.9A patent/CN110605965A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012004829A1 (ja) | 2010-07-06 | 2012-01-12 | トヨタ自動車株式会社 | 燃料電池の搭載構造 |
US20120279792A1 (en) | 2010-07-06 | 2012-11-08 | Toyota Jidosha Kabushiki Kaisha | Fuel cell mounting structure |
Also Published As
Publication number | Publication date |
---|---|
CN110605965A (zh) | 2019-12-24 |
DE102019111054A1 (de) | 2019-12-19 |
US20190381901A1 (en) | 2019-12-19 |
JP2019216051A (ja) | 2019-12-19 |
US11040629B2 (en) | 2021-06-22 |
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