WO2013118602A9 - 燃料電池車両 - Google Patents
燃料電池車両 Download PDFInfo
- Publication number
- WO2013118602A9 WO2013118602A9 PCT/JP2013/051779 JP2013051779W WO2013118602A9 WO 2013118602 A9 WO2013118602 A9 WO 2013118602A9 JP 2013051779 W JP2013051779 W JP 2013051779W WO 2013118602 A9 WO2013118602 A9 WO 2013118602A9
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- WO
- WIPO (PCT)
- Prior art keywords
- fuel cell
- vehicle
- cell stack
- shock absorbing
- fuel
- Prior art date
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Classifications
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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
- 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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
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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
-
- 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
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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
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2483—Details of groupings of fuel cells characterised by internal manifolds
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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
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
-
- 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
- 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
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/063—Arrangement of tanks
- B60K15/067—Mounting of tanks
- B60K2015/0675—Mounting of tanks allowing deflection movements of the tank in case of a crash
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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
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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
- 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
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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
- 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
Definitions
- the present invention has a fuel cell that generates electricity by an electrochemical reaction between a fuel gas and an oxidant gas, and mounts the fuel cell stack on the front box of a vehicle, and a fuel cell stack on which a plurality of the fuel cells are stacked.
- the present invention relates to a fuel cell vehicle including a vehicle side frame for
- a power generation cell in which an electrolyte membrane / electrode assembly (MEA) having an anode electrode and a cathode electrode disposed on both sides of an electrolyte membrane made of a polymer ion exchange membrane is held by a separator.
- MEA electrolyte membrane / electrode assembly
- This type of fuel cell is generally used as a vehicle fuel cell stack by stacking a predetermined number of power generation cells.
- the above-described on-vehicle fuel cell stack constitutes, for example, an on-vehicle fuel cell system disclosed in Japanese Patent Application Laid-Open No. 2003-173790 (hereinafter referred to as a prior art).
- the fuel cell system includes a fuel cell stack 3 mounted on the front box 2 of the vehicle 1.
- a plurality of fuel cells 3a are stacked in the vertical direction.
- a radiator 4 is disposed forward in the traveling direction, and accessories such as an ion exchanger 5a, an air filter 5b, an intercooler 5c, and a supercharger 5d are disposed close to the rear of the radiator 4 It is set up. Further, a main motor 6 which is a traveling motor is disposed close to the lower side of the fuel cell stack 3.
- the present invention has been made in response to this type of request, and it is not necessary to use a relatively strong enclosure to cover the fuel cell, and the external load can be applied to the fuel cell in a simple and economical configuration. It is an object of the present invention to provide a fuel cell vehicle capable of preventing direct action as much as possible and reliably protecting the fuel cell.
- the present invention has a fuel cell that generates electricity by an electrochemical reaction between a fuel gas and an oxidant gas, and mounts the fuel cell stack on the front box of a vehicle, and a fuel cell stack on which a plurality of the fuel cells are stacked.
- the present invention relates to a fuel cell vehicle provided with a vehicle side frame.
- an impact applied from the outside is mitigated, and an impact relaxation mechanism longer than the length of the fuel cell stack in the vehicle front-rear direction is provided.
- the fuel cell stack and the shock absorbing mechanism have overlapping portions in the vehicle width direction in a plan view of the vehicle, and the vehicle forward end of the fuel cell stack is closer to the vehicle than the vehicle forward end of the shock absorbing mechanism.
- the rear end of the fuel cell stack is located in the front of the vehicle than the rear end of the shock absorbing mechanism, while the rear end of the fuel cell stack is located in the rear direction.
- the shock absorbing mechanism is longer in the vehicle longitudinal direction than the fuel cell stack, and the fuel cell stack is disposed within the range of the shock absorbing mechanism in plan view of the vehicle. There is. Therefore, the fuel cell stack does not protrude from the shock absorbing mechanism in the forward or backward direction of the vehicle.
- a fuel cell vehicle 10 includes a fuel cell stack 14 housed in a front box (so-called motor room) 12, and the fuel cell stack 14. And a vehicle body frame (vehicle side frame) 16 for mounting the front box 12 on the vehicle.
- a fuel cell stack 14 housed in a front box (so-called motor room) 12, and the fuel cell stack 14.
- vehicle body frame (vehicle side frame) 16 for mounting the front box 12 on the vehicle.
- the fuel cell stack 14 has a plurality of fuel cells 18 stacked in a vehicle width direction (arrow H direction) intersecting the vehicle length direction (arrow L direction) of the fuel cell vehicle 10 in a standing position.
- the plurality of fuel cells 18 may be stacked in the height direction (arrow T direction) of the fuel cell vehicle 10.
- the first terminal plate 20a, the first insulating plate 22a and the first end plate 24a are sequentially disposed outward at one end of the plurality of fuel cells 18 in the stacking direction.
- the second terminal plate 20b, the second insulating plate 22b, and the second end plate 24b are sequentially disposed outward.
- a first output terminal 26a connected to the first terminal plate 20a extends from the central portion of the first end plate 24a.
- a second output terminal 26b connected to the second terminal plate 20b extends from the central portion of the second end plate 24b.
- the 1st end plate 24a and the 2nd end plate 24b have horizontally long substantially rectangular shape which notched each corner, it is not limited to this, for example, has rectangular shape, square shape, etc. May be
- Both ends of the connecting bar (fastening member) 28 a are fixed by screws 30 between the long sides of the first end plate 24 a and the second end plate 24 b. Both ends of the connecting bar (fastening member) 28 b are fixed by screws 30 between the short sides of the first end plate 24 a and the second end plate 24 b.
- the connection bars 28a and 28b apply a clamping load in the stacking direction (the direction of the arrow H) to the plurality of stacked fuel cells 18 of the fuel cell stack 14.
- the fuel cell 18 has a horizontally long rectangular shape, and the membrane electrode assembly 40 is sandwiched between the first separator 42 and the second separator 44.
- the first separator 42 and the second separator 44 are made of, for example, a metal separator such as a steel plate, a stainless steel plate, an aluminum plate, or a plated steel plate, or a carbon separator.
- the end portions communicate with each other in the direction of arrow H, which is the stacking direction, to oxidize to supply an oxidant gas
- An agent gas inlet communication hole 46a and a fuel gas outlet communication hole 48b for discharging a fuel gas, for example, a hydrogen-containing gas, are arranged in the direction of the arrow T (vertical direction).
- the other end edge of the fuel cell 18 in the direction of arrow L communicates with each other in the direction of arrow H, and a fuel gas inlet communication hole 48a for supplying a fuel gas, and an oxidant gas for discharging an oxidant gas
- the outlet communication holes 46 b are arranged in the arrow T direction.
- a pair of coolant inlet communication holes 50a for supplying a coolant is provided at the upper end edge of the fuel cell 18 in the direction of arrow T.
- the lower end edge of the fuel cell 18 in the direction of arrow T is provided with a pair of cooling medium outlet communication holes 50b for discharging the cooling medium.
- a plurality of oxidations extending in the direction of arrow L are in communication with the oxidant gas inlet manifold 46a and the oxidant gas outlet manifold 46b.
- An agent gas flow channel 52 is provided.
- the cooling medium inlet communication hole 50a and the cooling medium outlet communication hole 50b are communicated between the surface 42b of the first separator 42 and the surface 44b of the second separator 44 which constitute the fuel cells 18 adjacent to each other, as indicated by the arrows.
- a plurality of cooling medium channels 56 extending in the T direction are provided.
- Seal members 58 and 60 are integrally or separately provided on the first separator 42 and the second separator 44, respectively.
- the sealing members 58 and 60 are made of, for example, EPDM, NBR, fluorine rubber, silicone rubber, fluorosilicone rubber, butyl rubber, natural rubber, sealing materials such as styrene rubber, chloroprene or acrylic rubber, cushioning materials, packing materials, etc. Use a resilient seal member.
- the electrolyte membrane / electrode assembly 40 includes, for example, a solid polymer electrolyte membrane 62 in which a thin film of perfluorosulfonic acid is impregnated with water, and a cathode electrode 64 and an anode electrode 66 sandwiching the solid polymer electrolyte membrane 62.
- a solid polymer electrolyte membrane 62 in which a thin film of perfluorosulfonic acid is impregnated with water
- a cathode electrode 64 and an anode electrode 66 sandwiching the solid polymer electrolyte membrane 62.
- the cathode electrode 64 and the anode electrode 66 are formed of a gas diffusion layer made of carbon paper or the like, and an electrode catalyst formed by uniformly applying porous carbon particles carrying a platinum alloy on the surface to the surface of the gas diffusion layer. And a layer.
- the electrode catalyst layer is formed on both sides of the solid polymer electrolyte membrane 62.
- an oxidant gas communicating with the oxidant gas inlet communication hole 46a, the oxidant gas outlet communication hole 46b, the fuel gas inlet communication hole 48a and the fuel gas outlet communication hole 48b A supply manifold 70a, an oxidant gas discharge manifold 70b, a fuel gas supply manifold 72a and a fuel gas discharge manifold 72b are attached.
- the second end plate 24b includes a pair of cooling medium supply manifolds 74a and a pair of cooling medium discharge manifolds 74b communicating with the pair of cooling medium inlet communication holes 50a and the pair of cooling medium outlet communication holes 50b. Is attached.
- the pair of cooling medium supply manifolds 74a merge to form a single supply piping structure, while the pair of cooling medium discharge manifolds 74b similarly merge to form a single discharge piping structure.
- all manifolds (oxidizer gas supply manifold 70a, oxidant gas discharge manifold 70b, fuel gas supply manifold 72a, fuel gas discharge manifold 72b, a pair of cooling media, etc.) are provided on the first end plate 24a.
- the fuel cell vehicle 10 includes an oxidant gas supply device 80 for supplying oxidant gas to the fuel cell stack 14, and a fuel gas supply device 82 for supplying fuel gas to the fuel cell stack 14.
- a cooling medium supply device 84 for supplying a cooling medium to the fuel cell stack 14 and a controller (ECU) 86 for controlling the entire fuel cell vehicle 10 are provided.
- the oxidant gas supply device 80 includes an air compressor 88 that compresses and supplies air from the atmosphere, and the air compressor 88 is driven by an air motor 90.
- the air compressor 88 is disposed in the air supply flow path 92.
- a humidifier 94 for exchanging heat and moisture between the supply gas and the exhaust gas is disposed in the air supply flow path 92, and the air supply flow path 92 is an oxidant gas inlet of the fuel cell stack 14. It communicates with the communication hole 46a.
- the oxidant gas supply device 80 includes an air discharge flow passage 96 communicating with the oxidant gas outlet communication hole 46b.
- the air discharge channel 96 communicates with the humidified medium passage (not shown) of the humidifier 94.
- an inlet side sealing valve 98a is disposed between the air compressor 88 and the humidifier 94, and in the air discharge flow passage 96, an outlet side seal is provided downstream of the humidifier 94.
- a stop valve 98b is provided.
- the fuel gas supply device 82 includes a hydrogen tank (H 2 tank) 100 for storing high pressure hydrogen, and this hydrogen tank 100 is in communication with the fuel gas inlet manifold 48 a of the fuel cell stack 14 via the hydrogen supply passage 102. Do.
- the hydrogen supply channel 102 is provided with a shutoff valve 104, an ejector 106, and a hydrogen pump 108 as needed.
- the ejector 106 supplies hydrogen gas supplied from the hydrogen tank 100 to the fuel cell stack 14 through the hydrogen supply flow passage 102, and an exhaust gas containing unused hydrogen gas not used in the fuel cell stack 14. Is sucked from the hydrogen circulation path 110 and supplied again to the fuel cell stack 14 as a fuel gas.
- An off gas passage 112 communicates with the fuel gas outlet passage 48b. In the middle of the off gas passage 112, the hydrogen circulation passage 110 is in communication, and a purge valve 114 is connected to the off gas passage 112.
- the cooling medium supply device 84 includes a cooling medium circulation passage 116 that is in communication with the cooling medium inlet communication hole 50 a and the cooling medium outlet communication hole 50 b provided in the fuel cell stack 14 and circulates the cooling medium to the fuel cell stack 14.
- the radiator 118, the cooling pump 120 and the ion exchanger 122 are connected to the cooling medium circuit 116.
- the radiator 118 is provided with a fan motor 124 and drives the radiator fan 125 to blow air to the radiator 118.
- one end of a pair of mount members 130a is fixed to the first end plate 24a, and the other end of the pair of mount members 130a is a fuel which is a fuel cell stack arranging mechanism. It is fixed to the battery frame member (impact mitigation mechanism) 132.
- One end of a pair of mounting members 130 b is fixed to the second end plate 24 b, and the other end of the pair of mounting members 130 b is fixed to the frame member 132.
- a motor mount (not shown) for mounting the traveling motor 126 may be used as the fuel cell stack arrangement mechanism, and the fuel cell stack 14 may be arranged on the motor mount.
- the frame member 132 is fixed to a side frame 134 which is a vehicle side component via a bracket 136.
- the side frame 134 constitutes a part of the vehicle body frame 16.
- the high voltage system unit 140 is fixed to the lower side of the frame member 132.
- the high voltage system unit 140 includes, for example, a PDU (power drive unit), a hydrogen pump PDU, a DC-DC converter, a fuel cell VCU (voltage control unit), a fuel cell contactor, and a shutoff valve 104 that constitutes a fuel gas supply device 82.
- the high voltage system unit 140 has a smaller outside dimension than the fuel cell stack 14 and is disposed below the fuel cell stack 14 and within the projection range of the fuel cell stack 14. Therefore, since the high voltage system unit 140 is disposed within the range of the fuel cell stack 14 and protected, the rigidity of the high voltage system unit 140 can be configured to be lower than the rigidity of the fuel cell stack 14 .
- an air compressor 88, a humidifier 94, an inlet side sealing valve 98a and an outlet side sealing valve 98b are mounted on the frame member 132. Note that these components may be attached to the vehicle body frame 16.
- a traveling motor 126 is attached to the vehicle body frame 16, and an air motor 90 constituting an oxidant gas supply device 80 is attached to the traveling motor 126 via a plurality of connecting members 142.
- a radiator 118 is disposed in the front box 12 in front of the vehicle front direction (arrow La direction).
- a dashboard panel 146 that partitions the front box 12 and the passenger compartment 144 is provided in the vehicle rear direction (arrow Lb direction) of the front box 12.
- the frame member 132 reduces the impact applied from the outside, and at the same time, makes the length S2 longer than the length S1 of the fuel cell stack 14 in the vehicle front-rear direction (arrow L direction).
- the shock absorbing mechanism is provided.
- the fuel cell stack 14 and the frame member 132 have overlapping portions in the vehicle width direction (arrow H direction) in plan view of the vehicle.
- the vehicle front direction end 14 a of the fuel cell stack 14 is spaced apart from the vehicle front direction end 132 a of the frame member 132 by a distance Sa in the vehicle rear direction.
- the vehicle rear direction end 14 b of the fuel cell stack 14 is spaced apart from the vehicle rear direction end 132 b of the frame member 132 by a distance Sb in the vehicle front direction.
- the distance Sa between the front end 14 a of the fuel cell stack 14 and the front end 132 a of the frame member 132 is equal to the distance between the front and rear of the fan motor 124 mounted at the rear of the radiator 118. It is set to be longer than the dimension S3 of the direction (Sa> S3).
- the distance Sb between the vehicle rear end 14 b of the fuel cell stack 14 and the vehicle rear end 132 b of the frame member 132 is determined by the impact from the outside, etc.
- the distance between the end 14 b of the fuel cell stack 14 and the dashboard panel 146 is set.
- the oxidant gas (air) is sent to the air supply flow path 92 via the air compressor 88 of the oxidant gas supply device 80.
- the oxidant gas is humidified through the humidifier 94 and then supplied to the oxidant gas inlet manifold 46 a of the fuel cell stack 14.
- the fuel gas (hydrogen gas) is supplied from the hydrogen tank 100 to the hydrogen supply passage 102 under the opening action of the shutoff valve 104.
- the fuel gas passes through the ejector 106 and is then supplied to the fuel gas inlet manifold 48 a of the fuel cell stack 14 under the action of the hydrogen pump 108.
- a cooling medium such as pure water, ethylene glycol, or oil is supplied from the cooling medium circulation passage 116 to the cooling medium inlet communication hole 50a of the fuel cell stack 14 under the action of the cooling pump 120. .
- the oxidant gas is introduced from the oxidant gas inlet manifold 46 a into the oxidant gas flow path 52 of the first separator 42.
- the oxidant gas is supplied to the cathode electrode 64 of the membrane electrode assembly 40 while moving in the direction of arrow L.
- the fuel gas is introduced into the fuel gas passage 54 of the second separator 44 from the fuel gas inlet passage 48 a.
- the fuel gas is supplied to the anode electrode 66 of the membrane electrode assembly 40 while moving in the direction of arrow L.
- the oxidant gas supplied to the cathode electrode 64 and the fuel gas supplied to the anode electrode 66 are consumed by the electrochemical reaction in the electrode catalyst layer, and power generation is performed. It will be. As a result, the electric power is supplied to the traveling motor 126, so that the fuel cell vehicle 10 can travel.
- the oxidant gas discharged from the cathode electrode 64 to the oxidant gas outlet communication hole 46b flows through the air discharge flow passage 96 and is introduced into the humidifier 94, and a new oxidant gas is introduced.
- the fuel gas discharged from the anode electrode 66 to the fuel gas outlet passage 48 b is sucked by the ejector 106 and supplied to the fuel cell stack 14. Further, after the cooling medium is introduced into the cooling medium flow channel 56, it cools the membrane electrode assembly 40 and is returned to the cooling medium circulation path 116.
- the frame member 132 constitutes an impact reducing mechanism
- the vehicle forward direction end 132a of the frame member 132 is a vehicle of the fuel cell stack 14 It projects a distance Sa forward of the front end 14a.
- a vehicle rearward direction end 132 b of the frame member 132 protrudes rearward of the vehicle rearward direction end 14 b of the fuel cell stack 14 by a distance Sb.
- the fuel cell stack 14 is disposed inside the frame member 132 in the longitudinal direction of the vehicle, and the external load F is applied to the fuel cell stack 14 even if the external load F is applied to the fuel cell vehicle 10. Is not directly granted. Thus, there is no need to use a relatively strong enclosure to cover the fuel cell stack 14.
- the radiator 118 may move rearward (in the direction of the arrow Lb) of the vehicle.
- the fan motor 124 that protrudes to the rear of the radiator 118 has a dimension S3 in the vehicle longitudinal direction that is greater than the distance Sa between the vehicle front end 14a of the fuel cell stack 14 and the vehicle front end 132a of the frame member 132. It is set to a short length.
- the frame member 132 may move in the vehicle rear direction (the direction of the arrow Lb) by the external load F and abut on the dashboard panel 146 in some cases.
- a gap is formed between the vehicle rear end 14 b of the fuel cell stack 14 and the dashboard panel 146. Therefore, it is possible to prevent the fuel cell stack 14 from coming into contact with the dashboard panel 146 as much as possible.
- both end portions of the fuel cell stack 14 in the vehicle width direction are disposed inward of both end portions of the frame member 132 in the vehicle width direction. There is. Therefore, when the external load Fs is applied to the fuel cell vehicle 10 in the lateral direction, the external load Fs does not directly act on the fuel cell stack 14.
- FIG. 6 is a side view showing the main part of a fuel cell vehicle 150 according to a second embodiment of the present invention.
- an impact reducing mechanism 152 is configured by the traveling motor 126 and the air motor 90.
- the air motor 90 and the traveling motor 126 are disposed in the longitudinal direction of the vehicle, and the respective axes O1 and O2 are disposed in the same plane along the horizontal direction.
- the maximum horizontal distance (distance on the horizontal line connecting the diameters) S4 from the outer periphery of the traveling motor 126 to the outer periphery of the air motor 90 is based on the length S1 of the fuel cell stack 14 in the vehicle longitudinal direction.
- the travel motor 126 and the air motor 90 may be disposed in a direction inclined in the longitudinal direction of the vehicle, and as the shock absorbing mechanism 152, the length in the longitudinal direction of the vehicle is longer than the length S1 of the fuel cell stack 14. It may be long.
- an impact reducing mechanism 152 is provided, and the load applied to the fuel cell stack 14 in the longitudinal direction of the vehicle is alleviated by the impact reducing mechanism 152.
- the shock absorbing mechanism 152 includes the traveling motor 126 and the air motor 90 having high rigidity, generates a reaction force against the external load F, and receives the external load F favorably. be able to.
- the axis O1 of the air motor 90 and the axis O2 of the traveling motor 126 are disposed on the same plane along the horizontal direction. As a result, the external load F can be more reliably received by the traveling motor 126 and the air motor 90, and the rigidity of the mounting structure of the traveling motor 126 and the air motor 90 can be set low, which is economical. .
- a fuel cell vehicle 160 includes an impact alleviation mechanism 162.
- the shock absorbing mechanism 162 includes various parts constituting the oxidant gas supply device 80, specifically, an air compressor 88, an inlet side sealing valve 98a, a humidifier 94, and an outlet side sealing valve 98b, which are included in the vehicle It is arranged in the front-rear direction (arrow L direction).
- the length S5 in the longitudinal direction of the vehicle is set to be longer than the length S1 in the longitudinal direction of the fuel cell stack 14.
- the fuel cell stack 14 is disposed within the length S5 of the impact relieving mechanism 162, while the impact relieving mechanism 162 is disposed so as to project outward from one lateral side of the fuel cell stack 14. (See Figure 9).
- a shock absorbing mechanism 162 is provided, and the shock absorbing mechanism 162 alleviates load application of the fuel cell stack 14 in the longitudinal direction of the vehicle.
- shock absorbing mechanism 162 is configured by an oxidant gas-based device or the like which is less expensive than a hydrogen-based device. This simplifies the replacement operation and is economical.
- a fuel cell vehicle 170 according to a fourth embodiment of the present invention is configured by combining the first to third embodiments.
- the fuel cell vehicle 170 is provided with a frame member (impact mitigation mechanism) 132, an impact mitigation mechanism 152, and an impact mitigation mechanism 162.
- the fourth embodiment when the external load F is applied, at least one of the frame member 132, the shock absorbing mechanism 152, and the shock absorbing mechanism 162 can well receive the external load F. Therefore, the fuel cell stack 14 can be protected more reliably, and the same effects as those of the first to third embodiments can be obtained.
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Abstract
Description
図1に示すように、フレーム部材132の下部側には、高電圧系ユニット140が固定される。高電圧系ユニット140は、例えば、PDU(パワードライブユニット)、水素ポンプPDU、DC-DCコンバータ、燃料電池VCU(ボルテージコントロールユニット)、燃料電池コンタクタの他、燃料ガス供給装置82を構成する遮断弁104、水素ポンプ108及びその他の各種バルブ類やエアコンヒータ等を備える。
Claims (9)
- 燃料ガスと酸化剤ガスとの電気化学反応により発電する燃料電池(18)を有し、複数の前記燃料電池(18)が積層される燃料電池スタック(14)と、
車両のフロントボックス(12)に前記燃料電池スタック(14)を搭載するための車両側フレーム(16)と、
を備える燃料電池車両であって、
外部から付与される衝撃を緩和するとともに、前記燃料電池スタック(14)の車両前後方向の長さよりも長尺な衝撃緩和機構(132)を設け、
前記燃料電池スタック(14)及び前記衝撃緩和機構(132)は、車両平面視で車両幅方向に重なり部位を有するとともに、
前記燃料電池スタック(14)の車両前方向端部(14a)は、前記衝撃緩和機構(132)の車両前方向端部(132a)よりも車両後方向に位置する一方、前記燃料電池スタック(14)の車両後方向端部(14b)は、前記衝撃緩和機構(132)の車両後方向端部(132b)よりも車両前方向に位置することを特徴とする燃料電池車両。 - 請求項1記載の燃料電池車両において、前記燃料電池スタック(14)を配置して前記車両側フレーム(16)に取り付けられる燃料電池スタック配置機構を備え、
前記燃料電池スタック配置機構は、前記衝撃緩和機構(132)であることを特徴とする燃料電池車両。 - 請求項1記載の燃料電池車両において、前記フロントボックス(12)の車両後方向には、該フロントボックス(12)と乗員室(144)とを仕切るダッシュボードパネル(146)が設けられるとともに、
前記燃料電池スタック(14)の車両後方向端部(14b)と前記衝撃緩和機構(132)の車両後方向端部(132b)との距離は、前記衝撃緩和機構(132)が前記ダッシュボードパネル(146)に当接した際、前記燃料電池スタック(14)の車両後方向端部(14b)と前記ダッシュボードパネル(146)との間に隙間が形成される距離に設定されることを特徴とする燃料電池車両。 - 請求項1記載の燃料電池車両において、前記燃料電池スタック(14)の車両前方向に配置され、前記燃料電池(18)の冷却に使用される冷却媒体が流通されるラジエータ(118)と、
前記ラジエータ(118)の後部に配置され、前記ラジエータ(118)に送風を行うラジエータファン(125)を作動させるためのファンモータ(124)と、
を備え、
前記燃料電池スタック(14)の車両前方向端部(14a)と前記衝撃緩和機構(132)の車両前方向端部(132a)との距離は、前記ファンモータ(124)の車両前後方向の寸法よりも長尺に設定されることを特徴とする燃料電池車両。 - 請求項1記載の燃料電池車両において、前記燃料電池車両を走行させる走行モータ(126)と、
前記燃料電池スタック(14)に前記酸化剤ガスを供給するエアコンプレッサ(88)と、
前記エアコンプレッサ(88)を駆動するエアモータ(90)と、
を備えるとともに、
前記衝撃緩和機構(152)は、互いに並列される前記走行モータ(126)及び前記エアモータ(90)により構成されることを特徴とする燃料電池車両。 - 請求項5記載の燃料電池車両において、前記走行モータ(126)の軸心と前記エアモータ(90)の軸心とは、水平方向に沿って同一平面上に配置されることを特徴とする燃料電池車両。
- 請求項1記載の燃料電池車両において、前記衝撃緩和機構(162)は、前記燃料電池(18)に使用される前記酸化剤ガスを流通させるための燃料電池用補機又は前記燃料電池車両の空調用補機により構成されることを特徴とする燃料電池車両。
- 請求項1記載の燃料電池車両において、前記燃料電池車両の制御を行う制御装置(86)と、
前記制御装置(86)を含む高電圧系ユニット(140)と、
を備え、
前記高電圧系ユニット(140)は、前記車両前後方向に沿って前記燃料電池スタック(14)よりも短尺に構成されることを特徴とする燃料電池車両。 - 請求項1記載の燃料電池車両において、前記燃料電池スタック(14)は、前記燃料電池(18)を車両幅方向又は車両高さ方向に積層されることを特徴とする燃料電池車両。
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US14/373,696 US9079508B2 (en) | 2012-02-07 | 2013-01-28 | Fuel cell vehicle |
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-
2013
- 2013-01-28 CN CN201380007097.2A patent/CN104114396B/zh active Active
- 2013-01-28 US US14/373,696 patent/US9079508B2/en active Active
- 2013-01-28 DE DE112013000874.2T patent/DE112013000874T5/de not_active Withdrawn
- 2013-01-28 JP JP2013557466A patent/JP5851527B2/ja not_active Expired - Fee Related
- 2013-01-28 WO PCT/JP2013/051779 patent/WO2013118602A1/ja active Application Filing
Also Published As
Publication number | Publication date |
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JP5851527B2 (ja) | 2016-02-03 |
US20150027796A1 (en) | 2015-01-29 |
DE112013000874T5 (de) | 2014-10-16 |
JPWO2013118602A1 (ja) | 2015-05-11 |
CN104114396B (zh) | 2016-08-31 |
US9079508B2 (en) | 2015-07-14 |
WO2013118602A1 (ja) | 2013-08-15 |
CN104114396A (zh) | 2014-10-22 |
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