Classifications

• • 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
  • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
  • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
  • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
• • 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
  • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
  • B60H1/00—Heating, cooling or ventilating devices
  • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
  • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
  • B60H1/00—Heating, cooling or ventilating devices
  • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
  • B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
  • B60H1/004—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for vehicles having a combustion engine and electric drive means, e.g. hybrid electric vehicles
• • 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
• • 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
  • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
• • 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
  • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
  • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
  • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
  • B60K6/28—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
• • 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
  • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
  • B60L50/64—Constructional details of batteries 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
  • 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
  • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
  • B60L50/66—Arrangements of batteries
• • 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
  • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
  • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
  • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
  • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
  • F01N13/08—Other arrangements or adaptations of exhaust conduits
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
  • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
  • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
  • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
  • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
  • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
  • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
  • F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
  • F01N3/106—Auxiliary oxidation catalysts
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/61—Types of temperature control
  • H01M10/613—Cooling or keeping cold
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
  • H01M10/625—Vehicles
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
  • H01M10/647—Prismatic or flat cells, e.g. pouch cells
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/65—Means for temperature control structurally associated with the cells
  • H01M10/655—Solid structures for heat exchange or heat conduction
  • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
  • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/65—Means for temperature control structurally associated with the cells
  • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
  • H01M10/6561—Gases
  • H01M10/6563—Gases with forced flow, e.g. by blowers
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/65—Means for temperature control structurally associated with the cells
  • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
  • H01M10/6561—Gases
  • H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
  • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
  • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
  • B60H1/00—Heating, cooling or ventilating devices
  • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
  • B60H2001/003—Component temperature regulation using an air flow
• • 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
  • 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
  • B60L2240/00—Control parameters of input or output; Target parameters
  • B60L2240/40—Drive Train control parameters
  • B60L2240/54—Drive Train control parameters related to batteries
  • B60L2240/545—Temperature
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
  • F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the exhaust apparatus; Spatial arrangements of exhaust apparatuses
  • F01N2340/04—Arrangement of the exhaust system relative to a vehicle or parts thereof
• • 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
  • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
  • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
  • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
• • 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
  • Y02E60/10—Energy storage using 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
  • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

• the present invention generally relates to a structure of a hybrid vehicle haying an internal combustion engine and a motor as its motive power source, and more particularly, to a structure of a hybrid vehicle including a battery pack of a side-flow type wherein cooling air flows in the horizontal direction.
• Patent Document 1 discloses a vehicle lower body structure of a hybrid vehicle having an object of lowering the floor while reducing the length in the longitudinal direction of the vehicle.
• a battery case storing a battery is arranged below a seat in the vehicle room.
• An exhaust pipe attached to an exhaust manifold of an engine extends below a floor panel toward an exhaust port situated at the rear of the vehicle. The exhaust pipe extends in a position not overlapping with the battery when the vehicle is seen two-dimensionally.
• Patent Document 2 discloses a loading structure for an exhaust pipe, which has an object of suppressing a local temperature increase of a battery caused by heat of an exhaust pipe. Similarly to the hybrid vehicle disclosed in Patent Document 1, also in Patent Document 2, the battery is arranged so that it is not positioned immediately above the exhaust pipe.
• Patent Document 3 discloses an air-intaking and exhausting apparatus in an air cooling system having an object of efficiently cooling a power drive unit and a down converter without using an air conditioning apparatus in the vehicle.
• Patent Document 4 discloses a battery mounting structure for an electric vehicle having an object of mounting a battery on one side below a vehicle floor without impairing support stability.
• a battery pack mounted on a hybrid vehicle is classified by the direction of the flow of cooling air into a side-flow type wherein the cooling air is caused to flow in the horizontal direction to cool the secondary battery, and an up-flow type or a down-flow type wherein the cooling air is caused to flow in the vertical direction to cool the secondary battery.
• an intake chamber supplying cooling air toward the secondary battery and an exhaust chamber exhausting the cooling air from the secondary battery are arranged on opposite sides of the secondary battery.
• the battery pack is greatly affected by heat from under the floor panel when the battery pack is arranged on the floor panel of the vehicle. This may impair the efficiency of cooling the secondary battery.
• the exhaust pipe is arranged so that it does not overlap with the battery when seen two- dimensionally.
• the exhaust pipe must be detoured around the battery case, and therefore the pipe is greatly bent along its route.
• exhaust efficiency may be reduced and the engine performance may be impaired.
• a structure of a hybrid vehicle is a structure of a hybrid vehicle having an internal combustion engine and a motor.
• the structure of a hybrid vehicle includes: a battery pack arranged on a vehicle floor; and an exhaust passage having an exhaust port and extending from the internal combustion engine, passing below the vehicle floor, to the exhaust port.
• the battery pack has a secondary battery constituted by a plurality of battery cells stacked in a vehicle traveling direction for supplying electric power to the motor, and an intake chamber provided adjacent to the secondary battery in a substantially horizontal .
• the exhaust passage is provided so that it passes immediately below the battery pack and passes a position displaced from a position immediately below the intake chamber.
• the plurality of battery cells include a first battery cell region positioned relatively near to the intake chamber, and a second battery cell region positioned relatively far from the intake chamber.
• the exhaust passage is provided so that it passes immediately below the first battery cell region.
• a structure of a hybrid vehicle is a structure of a hybrid vehicle having an internal combustion engine and a motor.
• the structure of a hybrid vehicle includes: a battery pack arranged on a vehicle floor; and an exhaust passage having an exhaust port and extending from the internal combustion engine, passing below the vehicle floor, to the exhaust port; and a catalyst portion provided on a route of the exhaust passage for purifying exhaust gas.
• the battery pack has a secondary battery constituted by a plurality of battery cells stacked in a vehicle width direction for supplying electric power to the motor, and an intake chamber provided adjacent to the secondary battery in a substantially horizontal direction perpendicular to the direction along which the plurality of battery cells are stacked for supplying cooling air between each of the plurality of battery cells.
• the exhaust passage is provided so that it passes immediately below the battery pack.
• the catalyst portion is arranged at a position displaced from a position immediately below the intake chamber.
• the catalyst portion arranged at the exhaust passage is arranged at a position displaced from a position immediately below the intake chamber. Accordingly, the effect of heat generated at the catalyst portion due to catalytic reaction on the cooling air in the intake chamber can be suppressed to be small, and thus an increase in the temperature of the cooling air before being supplied between each of the plurality of battery cells can be suppressed. Thus, a significant reduction in the efficiency of cooling the secondary battery can be prevented.
• a structure of a hybrid vehicle is a structure of a hybrid vehicle having an internal combustion engine and a motor.
• the structure of a hybrid vehicle includes: a battery pack that has a secondary battery supplying electric power to the motor and that is arranged on a vehicle floor; an exhaust passage having an exhaust port and extending from the internal combustion engine, passing below the vehicle floor, to the exhaust port; and a catalyst portion provided on a route of the exhaust passage for purifying exhaust gas.
• the exhaust passage is provided so that it passes immediately below the battery pack.
• the catalyst portion is arranged at a position displaced from a position immediately below the battery pack.
• the catalyst portion provided at the exhaust passage is arranged at a position displaced from a position immediately below the battery pack. Accordingly, an increase in the temperature of the cooling air flowing in the battery pack due to the heat generated at the catalyst portion by catalytic reaction can be suppressed. Thus, a significant reduction in the efficiency of cooling the secondary battery can be prevented.
• the secondary battery is constituted by a plurality of battery cells stacked in a vehicle traveling direction.
• the battery pack further has an intake chamber provided adjacent to the secondary battery in a substantially horizontal direction perpendicular to the direction along which the plurality of battery cells are stacked for supplying cooling air between each of the plurality of battery cells.
• the plurality of battery cells includes a first battery cell region positioned relatively near to the intake chamber, and a second battery cell region positioned relatively far from the intake chamber.
• the exhaust passage is provided so that it passes immediately below the first battery cell region.
• a structure of a hybrid vehicle is a structure of a hybrid vehicle having an internal combustion engine and a motor.
• the structure of a hybrid vehicle includes: a battery pack arranged on a vehicle floor; and an exhaust passage having an exhaust port and extending from the internal combustion engine, passing below the vehicle floor, to the exhaust port.
• the battery pack has a secondary battery constituted by a plurality of battery cells stacked in a vehicle width direction for supplying electric power to the motor, an intake chamber provided adjacent to the secondary battery in a substantially horizontal direction perpendicular to the direction along which the plurality of battery cells are stacked for supplying cooling air between each of the plurality of battery cells, and an exhaust chamber arranged opposite to the intake chamber relative to the secondary battery for exhausting the cooling air from between each of the plurality of battery cells.
• the intake chamber and the exhaust chamber each include one end and the other end separated in a direction along which the plurality of battery cells are stacked, and extend from one end to the other end.
• the exhaust passage When the cooling air is introduced from one end of the intake chamber and exhausted from the other end of the exhaust chamber, the exhaust passage is provided to pass immediately below the battery pack at a position nearer to the other end than to one end.
• the exhaust passage When the cooling air is introduced from one end of the intake chamber and exhausted from one end of the exhaust chamber, the exhaust passage is provided to pass immediately below the battery pack at a position nearer to one end than to the other end.
• the structure of a hybrid vehicle thus configured, it is not necessary to detour around the battery pack when routing the exhaust passage from the internal combustion engine to the exhaust port. Accordingly, excessively bent route of the exhaust passage can be avoided, and the performance of the internal combustion engine can be prevented from being impaired.
• the flow rate of the cooling air flowing between each of the battery cells is greater in a position nearer to the other end than to one end, and a temperature distribution of the battery cells exists, in which the temperature is low in the position nearer to the other end and high in the position nearer to one end.
• the flow rate of the cooling air flowing between each of the battery cells is greater in a position nearer to one end than to the other end, and a temperature distribution of the battery cells exists, in which the temperature is low in the position nearer to one end and high in the position nearer to the other end.
• the exhaust passage extends in a position near to the other end and to one end in respective cases, and therefore the temperature distribution of the battery cells can be made small by the heat of the exhaust passage.
• a structure of a hybrid vehicle that suppresses reduction -in the efficiency of cooling a secondary battery without placing a great limit on routing of an exhaust pipe can be provided.
• Fig. 1 is a side view of a hybrid vehicle in a first embodiment of the present invention.
• Fig. 2 is a plan view of the hybrid vehicle shown in Fig. 1.
• Fig. 3 is a perspective view showing a battery pack shown in Fig. 1.
• Fig. 4 is a cross-sectional view of a battery pack along line IV-IV in Fig. 2.
• Fig. 5 is a cross-sectional view of a modification of a battery pack wherein an exhaust pipe extends immediately below a battery cell arranged downstream of a cooling air flow
• Fig. 6 is a cross-sectional view of another modification of a battery pack wherein an exhaust pipe extends immediately below a battery cell arranged downstream of a cooling air flow.
• Fig. 7 is a plan view of a hybrid vehicle in a second embodiment of the present invention.
• Fig. 8 is a cross-sectional view of a battery pack along line VIII-VIII in Fig. 7.
• Fig. 9 is a plan view of a hybrid vehicle in a third embodiment of the present invention.
• Fig. 10 is a plan view of a modification of the hybrid vehicle shown in Fig. 9.
• Fig. 11 is a plan view partially showing a hybrid vehicle in a fourth embodiment of the present invention.
• Fig. 12 is a plan view showing a modification of the battery pack shown in Fig. 11.
• Fig. 1 is a side view of a hybrid vehicle in a first embodiment of the present invention.
• Fig. 2 is a plan view of the hybrid vehicle shown in Fig. 1.
• a hybrid vehicle 10 has as its source of motive power a gasoline engine 14 (hereinafter simply referred to as engine 14) and a motor electrically supplied from a secondary battery (battery) 32 that can be charged or discharged.
• engine 14 a gasoline engine 14
• battery 32 secondary battery
• Engine 14 is stored in an engine room 16 formed on a front side of the vehicle.
• an exhaust pipe 21 is connected to an exhaust manifold of engine 14.
• Exhaust pipe 21 extends from inside of engine room 16, passing below a floor panel 15, toward the rear of the vehicle.
• Floor panel 15 constitutes the floor board of the vehicle, and extends facing to the ground.
• Exhaust pipe 21 has, at its tip extending toward the rear of the vehicle, an exhaust port 24 opening toward the outside of the vehicle. The exhaust gas from engine 14 is guided through exhaust pipe 21 to the rear of the vehicle, and exhausted outside the vehicle from exhaust port 24.
• Three-way catalyst 22 is a catalyst that simultaneously changes CO, HC (hydrocarbon) and NOx (nitrogen oxides) to CO 2 , H 2 O and N 2 , respectively, and configured by forming, on a monolith base, a coat layer containing an alumina support and noble metal such as platinum and rhodium, for example.
• a driver's seat 11 and a front passenger's seat 12 are provided aligned in the vehicle width direction.
• the vehicle width direction is perpendicular to the vehicle traveling direction.
• a center console 13 made of resin is provided between driver's seat 11 and front passenger's seat 12.
• Center console 13 is provided, for example, to sophisticate the interior, to provide a cup holder for placing a drink container, and to provide a depression for placing small articles.
• Battery pack 31 storing secondary battery 32 is provided on floor panel 15 and for example inside center console 13. Battery pack 31 is arranged between engine 14 and exhaust port 24 in the vehicle traveling direction, and in the present embodiment, arranged overlapping with a line connecting engine 14 and exhaust port 24. When seen from above the vehicle, battery pack 31 is arranged to be positioned between engine 14 and exhaust port 24. Battery pack 31 and exhaust pipe 21 are provided next to each other with floor panel 15 interposed between them.
• Fig. 3 is a perspective view showing a battery pack shown in Fig. 1.
• a case body that is an outer package of the battery pack is drawn as transparent.
• secondary battery 32 stored in battery pack 31 is constituted by a plurality of battery cells 33.
• pairs of battery cells 33m and 33n aligned in parallel are stacked in the vehicle traveling direction to constitute secondary battery 32.
• a plurality of battery cells 33 are electrically connected in series with each other by a not-shown bus bar.
• Battery cell 33 is formed by a lithium ion battery. It is noted that battery cell 33 is not particularly limited so long as it is a secondary battery that can be charged or discharged, and it may be a nickel-hydride metal battery, for example.
• the pairs of battery cells 33m and 33n are retained by resin frames 43 formed by a resin material such as polypropylene, for example.
• Resin frames 43 are aligned in a plurality of numbers in the vehicle traveling direction while retaining battery cells 33m and 33n.
• end plates 40 and 41 are arranged on opposite sides of resin frames 43 arranged in a plurality of numbers. End plate 40 and end plate 41 are bound to each other by a binding band 42 with a plurality of resin frames 43 being interposed between them.
• an intake chamber 34 and an exhaust chamber 35 are formed, positioned on the opposite sides of secondary battery 32.
• Intake chamber 34 and exhaust chamber 35 are adjacent to secondary battery 32 in the horizontal direction perpendicular to the vehicle traveling direction along which battery cells 33 are stacked, that is, in the vehicle width direction.
• a plurality of battery cells 33m stacked in the vehicle traveling direction are provided adjacent to intake chamber 34, and a plurality of battery cells 33n stacked in the vehicle traveling direction are provided adjacent to exhaust chamber 35.
• a cooling air passage 44 passing between battery cells 33 that are adjacent to each other in the vehicle traveling direction is formed. Cooling air passage 44 communicates with intake chamber 34 and exhaust chamber 35 at the opposite sides of secondary battery 32.
• the cooling air introduced from the room into battery pack 31 flows from intake chamber 34 into cooling air passage 44.
• the cooling air first cools battery cells 33m and thereafter cools battery cells 33n while flowing through cooling air passage 44.
• the cooling air which is increased in the temperature by heat exchange with battery cells 33 is exhausted from cooling air passage 44 to exhaust chamber 35.
• Fig. 4 is a cross-sectional view of the battery pack along line IV-IV in Fig. 2.
• exhaust pipe 21 extends in a position immediately below battery pack 31 and in a position displaced from a position immediately below intake chamber 34, that is, in a position overlapping with battery pack 31 excluding intake chamber 34 when hybrid vehicle 10 is seen two-dimensionally.
• Exhaust pipe 21 extends so as to overlap with battery pack 31 and not with intake chamber when seen from above the vehicle.
• Exhaust pipe 21 extends in the vehicle traveling direction, being separated from intake chamber 34 and overlapping with batteVy pack 31 when seen from above the vehicle.
• Exhaust pipe 21 is provided such that the heat quantity transferred from exhaust pipe 21 is relatively small in intake chamber 34 and relatively great in battery pack 31 excluding intake chamber 34.
• Exhaust pipe 21 in the present embodiment extends to cross both of end plates 40 and 41 binding a plurality of battery cells 33 from the opposite sides, when seen from above the vehicle.
• Exhaust pipe 21 extends positioned in a region 102 spreading immediately below battery cell 33m, a region 103 spreading immediately below battery cell 33n, or a region 104 spreading immediately below exhaust chamber 35.
• the region through which exhaust pipe 21 extends may be a plurality of those regions.
• exhaust pipe 21 extends through region 104 spreading immediately below exhaust chamber 35. Further, when exhaust pipe 21 extends along the vehicle traveling direction that is the stacking direction of battery cells 33 in region 102 or 103 spreading immediately below battery cells 33, a difference in the temperature between each of battery cells 33 aligning in the vehicle traveling direction due to the effect of heat of exhaust pipe 21 can be avoided.
• Fig. 5 is a cross-sectional view of a modification of the battery pack wherein the exhaust pipe extends immediately below the battery cell arranged downstream of the cooling air flow.
• bypass flow channel 51 that directly connects the cooling air passage extending between each of a plurality of battery cells 33m and exhaust chamber 35 may be formed in resin frame 43.
• Bypass flow channel 51 extends between battery cell 33n and exhaust pipe 21.
• Bypass flow channel 51 guides the cooling air having passed between each of a plurality of battery cells 33m to exhaust chamber 35, without passing between each of a plurality of battery cells 33n.
• Fig. 6 is a cross-sectional view of another modification of the battery pack wherein the exhaust pipe extends immediately below the battery cell arranged downstream of the cooling air flow.
• a bypass flow channel 52 that directly connects intake chamber 34 and the cooling air passage extending between each of a plurality of battery cells 33n may be formed in resin frame 43.
• Bypass flow channel 52 extends along the opposite side of floor panel 15 relative to battery cells 33n, and formed in a position hardly affected by the heat of exhaust pipe 21.
• Bypass flow channel 52 guides the cooling air passing in intake chamber 34 to between each of a plurality of battery cells 33n, without passing between each of a plurality of battery cells 33m.
• bypass flow channel 52 the cooling air not conducting heat exchange between battery cells 33m is used for the heat exchange with battery cells 33n.
• the flow rate of the cooling air flowing between each of battery cells 33n can be made the same as or greater than the flow rate of the cooling air flowing between each of battery cells 33m, and thus the temperature of battery cell 33n can be set even lower.
• the difference in the temperature between battery cells 33m and battery cells 33n can be made further smaller.
• the structure of hybrid vehicle 10 as a hybrid vehicle in the first embodiment of the present invention includes battery pack 31 arranged on floor panel 15 as a vehicle floor, and exhaust pipe 21 as an exhaust passage having exhaust port 24 and extending from engine 14 as an internal combustion engine passing below floor panel 15 to exhaust port 24.
• Battery pack 31 has secondary battery 32 constituted by a plurality of battery cells 33 stacked in the vehicle traveling direction for supplying electric power to the motor, and intake chamber 34 provided adjacent to secondary battery 32 in a substantially horizontal direction perpendicular to the direction in which a plurality of battery cells 33 are stacked for supplying cooling air between each of a plurality of battery cells 33.
• Exhaust pipe 21 is provided so that it passes immediately below battery pack 31 and passes a position displaced from a position immediately below intake chamber 34.
• battery pack 31 is provided inside center console 13 in the present embodiment, the present invention is not limited thereto and battery pack 31 may be provided for example under driver's seat 11 or front passenger's seat 12, under rear sheet 18, or in a luggage room.
• Engine 14 is not limited to a gasoline engine, and it may be a diesel engine.
• Fig. 7 ' is a plan view of a hybrid vehicle in a second embodiment of the present invention.
• Fig. 8 is a cross-sectional view of a battery pack along line VIII-VIII in Fig. 7.
• pairs of battery cells 33m and 33n aligned in parallel are stacked in the vehicle width direction to constitute secondary battery 32.
• Intake chamber 34 and exhaust chamber 35 are adjacent to secondary battery 32 in a horizontal direction perpendicular to the vehicle width direction along which battery cells 33 are stacked, that is, in the vehicle traveling direction.
• Exhaust pipe 21 extends immediately below battery pack 31, and extends through region 101 spreading immediately below intake chamber 34, regions 102 and 103 spreading immediately below battery cells 33m and 33n, respectively, and region 104 spreading immediately below exhaust chamber 35 in this order.
• a three-way catalyst 22 is provided at a position displaced from a position immediately below intake chamber 34, that is, at a position not overlapping with intake chamber 34 when hybrid vehicle 10 is seen two-dimensionally.
• Three-way catalyst 22 is provided at region 102, 103, or 104 or at regions 100 and 105 being displaced from a position immediately below battery pack 31.
• the region where three-way catalyst 22 is arranged may be a plurality of these regions.
• three-way catalyst 22 an apparatus purifying exhaust gas by catalytic reaction such as oxidation catalyst, lean NOx catalyst, DPF (diesel particulate filter) with oxidation catalyst, or HC adsorption purify catalyst may be provided.
• three-way catalyst 22 may be a catalyst provided immediately downstream of the exhaust manifold so that it attains the active temperature in the early stage when the engine is started.
• three-way catalyst 22 As catalytic reaction occurs when exhaust gas passes through three-way catalyst 22, the temperature of three-way catalyst 22 increases. In the present embodiment, since three-way catalyst 22 is arranged in region 100, 102, 104, 104, or 105 that is displaced from region 101 spreading immediately below intake chamber 34, a significant reduction in the efficiency of cooling secondary battery 32 affected by heat generated in three-way catalyst 22 is suppressed.
• the structure of hybrid vehicle in the second embodiment of the present invention includes battery pack 31 arranged on floor panel 15, exhaust pipe 21 having exhaust port 24 and extending from engine 14 and passing below floor panel 15 to exhaust port 24, and three-way catalyst 22 provided on the route of exhaust pipe 21 as a catalyst portion purifying exhaust gas.
• Battery pack 31 has secondary battery 32 constituted by a plurality of battery cells 33 stacked in the vehicle width direction for supplying electric power to the motor, and intake chamber 34 provided adjacent to secondary battery 32 in a substantially horizontal direction perpendicular to the direction along which a plurality of battery cells 33 are stacked for supplying cooling air between each of a plurality of battery cells 33.
• Exhaust pipe 21 is provided so that it passes immediately below battery pack 31.
• Three-way catalyst 22 is arranged at a position displaced from a position immediately below intake chamber 34.
• Fig. 9 is a plan view of a hybrid vehicle in a third embodiment of the present invention.
• battery cells 33 are stacked in the vehicle traveling direction to constitute secondary battery 32.
• Intake chamber 34 and exhaust chamber 35 are adjacent to secondary battery 32 in a horizontal direction perpendicular to the vehicle traveling direction along which battery cells 33 are stacked, that is, in the vehicle width direction.
• Exhaust pipe 21 extends immediately below battery pack 31, and three-way catalyst 22 is arranged at a position displaced from a position immediately below battery pack 31.
• exhaust pipe 21 extends at a position overlapping with battery pack 31 when hybrid vehicle 10 is seen two- dimensionally, and three-way catalyst 22 is arranged at a position not overlapping with battery pack 31.
• Fig. 10 is a plan view of a modification of the hybrid vehicle shown in Fig. 9.
• exhaust pipe 21 is provided to extend immediately below battery pack 31, and three-way catalyst 22 is arranged at a position being displaced from a position immediately below battery pack 31.
• the hybrid vehicle in the third embodiment of the present invention includes battery pack 31 having secondary battery 32 supplying electric power to a motor and arranged on floor panel 15, exhaust pipe 21 having exhaust port 24 and extending from engine 14 and passing below floor panel 15 to exhaust port 24, and three-way catalyst 22 provided on the route of exhaust pipe 21 for purifying exhaust gas.
• the exhaust pipe 21 is provided to pass immediately below battery pack 31.
• Three-way catalyst 22 is arranged at a position displaced from a position immediately below battery pack 31.
• Fig. 11 is a plan view partially showing a hybrid vehicle in a fourth embodiment of the present invention.
• description of the structure being the same as in the hybrid vehicle in the first to third embodiments will not be repeated.
• battery cells 33 are stacked in the vehicle width direction to constitute secondary battery 32.
• Intake chamber 34 and exhaust chamber 35 are adjacent to secondary battery 32 in a horizontal direction perpendicular to the vehicle width direction along which battery cells 33 are stacked, that is, in the vehicle traveling direction.
• Intake chamber 34 and exhaust chamber 35 each have one end 55 and the other end 56 separated in the vehicle width direction, and they extend in parallel to each other from one end 55 to the other end 56.
• the cooling air is introduced from one end 55 of intake chamber 34, and makes a turn in battery pack 31 and exhausted from one end 55 of exhaust chamber 35 ,
• Exhaust pipe 21 extends immediately below battery pack 31 nearer to one end 55 than to the other end 56.
• the position at which cooling air is introduced into intake chamber 34 and the position at which the cooling air is exhausted from exhaust chamber 35 are provided on the same side of the extending direction of intake chamber 34 and exhaust chamber 35. Therefore, when the cooling air flows into intake chamber 34, rather than going to the other end 56 of intake chamber 34, it tends to pass between each of battery cells 33 to go to exhaust chamber 55. Accordingly, in the present embodiment, the flow rate of the cooling air flowing between each of battery cells 33 is greater in a position nearer to one end 55 than to the other end 56. On the other hand, as exhaust pipe 21 extends at a position nearer to one end 55 than to the other end 56, the difference in the temperature between each of battery cells 33 aligning in the vehicle width direction can be made small.
• Fig. 12 is a plan view showing a modification of the battery pack shown in Fig. 11. Referring to Fig. 12, in the present modification, cooling air is introduced from one end 55 of intake chamber 34 and exhausted from the other end 56 of exhaust chamber 35. Exhaust pipe 21 extends immediately below battery pack 31 nearer to the other end 56 than to one end 55.
• the position at which cooling air is introduced into intake chamber 34 and the position at which the cooling air is exhausted from exhaust chamber 35 are provided on opposite sides of the extending direction of intake chamber 34 and exhaust chamber 35. Therefore, when the cooling air flows into one end 55 of intake chamber 34, rather than passing between each of battery cells 33 and going to exhaust chamber 55, it tends to rush toward the other end 56 of intake chamber 34. Accordingly, the flow rate of the cooling air flowing between each of battery cells 33 is greater in a position nearer to the other end 56 than to one end 55.
• exhaust pipe 21 extends at a position nearer to the other end 56 than to one end 55, the difference in the temperature between each of battery cells 33 aligning in the vehicle width direction can be made small.
• the structure of the hybrid vehicle in the fourth embodiment of the present invention includes battery pack 31 arranged on floor panel 15 and exhaust pipe 21 having exhaust port 24 and extending from engine 14 and passing below floor panel 15 to exhaust port 24.
• Battery pack 31 has secondary battery 32 constituted by a plurality of battery cells stacked in the vehicle width direction for supplying electric power to the motor, intake chamber 34 provided adjacent to secondary battery 32 in a substantially horizontal direction perpendicular to the direction along which the plurality of battery cells 33 are stacked for supplying cooling air between each of the plurality of battery cells 33, and exhaust chamber 35 arranged on the opposite side of intake chamber 34 relative to secondary battery 32 for exhausting the cooling air from between each of the plurality of battery cells 33.
• Intake chamber 34 and exhaust chamber 35 include one end 55 and the other end 56 separated in the direction along which the plurality of battery cells 33 are stacked, and extend from one end 55 to the other end 56.
• exhaust pipe 21 When the cooling air is introduced from one end 55 of intake chamber 34 and exhausted from the other end 56 of exhaust chamber 35, exhaust pipe 21 is provided to pass immediately below battery pack 31 at a position nearer to the other end 56 than to one end 55. When the cooling air is introduced from one end 55 of intake chamber 34 and exhausted from one end 55 of exhaust chamber 35, exhaust pipe 21 is provided to pass immediately below battery pack 31 at a position nearer to one end 55 than to the other end 56.
• the effect similar to that described in the first embodiment can be attained. Additionally, since variations in the temperature between each of battery cells 33 is suppressed to be small, improvements in the battery performance and the battery lifetime can be achieved.
• the present invention is applicable chiefly to a hybrid vehicle having an internal combustion engine and a motor as its motive power source.

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• Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
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• 2005
  • 2005-07-12 JP JP2005203208A patent/JP4415910B2/ja not_active Expired - Fee Related
• 2006
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