WO2016143214A1 - 車両用高圧系機器ユニット、車両用バッテリユニット及び車両 - Google Patents
車両用高圧系機器ユニット、車両用バッテリユニット及び車両 Download PDFInfo
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- WO2016143214A1 WO2016143214A1 PCT/JP2015/085067 JP2015085067W WO2016143214A1 WO 2016143214 A1 WO2016143214 A1 WO 2016143214A1 JP 2015085067 W JP2015085067 W JP 2015085067W WO 2016143214 A1 WO2016143214 A1 WO 2016143214A1
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- vehicle
- exhaust
- battery
- ipu
- air
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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
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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
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/06—Arrangement in connection with cooling of propulsion units with air 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
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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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
- B60L50/60—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
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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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, 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
- 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
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
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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
- 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
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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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
- 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
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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
- 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
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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
- 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
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
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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
- 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
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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
- 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
- H01M50/256—Carrying devices, e.g. belts
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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
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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
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0422—Arrangement under the front seats
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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
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0433—Arrangement under the rear seats
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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
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0438—Arrangement under the floor
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries 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
- Y02E60/10—Energy storage using batteries
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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
- 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 relates to a high-voltage equipment unit for a vehicle that cools a high-pressure equipment housed inside by air in the vehicle interior, a battery unit for a vehicle that cools a battery housed inside by air in the car compartment, and a vehicle.
- Vehicles such as electric vehicles and hybrid vehicles that use a motor as a drive source are equipped with a high-voltage system unit containing high-voltage equipment and / or a battery unit containing a battery.
- a high-voltage system unit containing high-voltage equipment and / or a battery unit containing a battery.
- this type of vehicle has air taken in from the passenger compartment so that the temperature of the high-voltage equipment and / or batteries is maintained within an appropriate range.
- the high-pressure equipment and / or the battery is cooled by
- a battery unit is disposed under the floor of the front seat.
- an air introduction duct having an air intake port formed in the rear seat side step on one side in the vehicle width direction is attached to the end on one side in the vehicle width direction of the battery unit, and the end on the other side in the vehicle width direction of the battery unit.
- An air discharge duct having an air discharge port is attached to the rear seat side step on the other side in the vehicle width direction, and the battery is cooled by circulating air in the vehicle interior.
- a first object of the present invention is to provide a high-pressure equipment unit for a vehicle and a vehicle capable of smoothly diverting air that has cooled the high-pressure equipment.
- a second object of the present invention is to provide a vehicle battery unit and a vehicle that facilitate the mounting of the battery unit on a vehicle and are excellent in assembly workability.
- a third object of the present invention is to provide a vehicle having excellent comfort or assembly workability.
- the present invention provides the following aspects.
- the first aspect is A high-voltage system device (for example, a DC-DC converter 41 in an embodiment described later); A cooling fan that takes in the air in the passenger compartment (for example, a cooling fan 43 in an embodiment described later), A high-pressure equipment unit for a vehicle (for example, IPU 20 in an embodiment described later) in which the high-pressure equipment is cooled by air in a vehicle interior, The cooling fan is disposed upstream of the high-pressure equipment, An exhaust part (for example, an exhaust passage 33 in an embodiment described later) is disposed on the downstream side of the high-pressure equipment, The exhaust part is provided with a branch part (for example, a branch part 36 in an embodiment described later) for diverting the air that has cooled the high-pressure system equipment, A rectification unit (for example, a cooling fin 41b in an embodiment described later) is provided on the upstream side of the branching unit, The rectifying unit is formed integrally with the high-voltage equipment.
- a branch part for example, a branch
- the second aspect is A battery (for example, a battery 40 in an embodiment described later); A case (for example, an IPU case 21 in an embodiment described later) having a battery accommodating section (for example, an IPU accommodating portion 22 in an embodiment described later) for accommodating the battery; A cover (for example, an IPU cover 26 in an embodiment described later) covering an opening of the case (for example, an opening 23 in an embodiment described later), A vehicle battery unit (for example, an IPU 20 in an embodiment described later) in which the battery is cooled by air in a vehicle compartment,
- the cover is formed with an exhaust passage (for example, an exhaust passage 33 in an embodiment described later) that communicates with the battery housing portion and discharges air that has cooled the battery.
- the exhaust passage extends at least on one side in the vehicle width direction, and has an exhaust port (for example, an IPU exhaust port 29 in an embodiment described later) at an end of the at least one side.
- the third aspect is A front seat (for example, a front seat 1 in an embodiment described later); A battery housed in a battery housing (for example, an IPU protective case 8 in an embodiment described later) provided on a floor panel (for example, a floor panel 3 in an embodiment described later), and disposed below the front seat.
- a battery housing for example, an IPU protective case 8 in an embodiment described later
- a floor panel for example, a floor panel 3 in an embodiment described later
- a sliding door for example, a sliding door 9 in an embodiment described later located obliquely rearward with respect to the front seat;
- a step for example, step 60 in an embodiment described later) disposed on the floor panel so as to be adjacent to the sliding door;
- a rail housing portion for example, rail housing portion 17 in an embodiment described later
- a rail for example, a rail 18 in an embodiment described later
- An exhaust path for exhausting air that has cooled the battery is connected to the first exhaust path (for example, an exhaust path 33 in an embodiment described later) extending in the left-right direction from the battery, and the first exhaust path.
- a second exhaust path (for example, an exhaust passage 75 in an embodiment described later) connected to a step lower space (for example, a step lower space S1 in an embodiment described later) provided below The second exhaust path communicates with the rail housing portion
- exhaust gas can be rectified without increasing the number of parts by integrally forming the rectification unit in the high-pressure equipment, and the cooling efficiency of the high-pressure equipment is also improved. Moreover, exhaust gas can be diverted smoothly by passing through the branch portion after rectification, and pressure loss can be reduced.
- the second aspect as compared with the case where the exhaust duct formed separately from the cover is assembled to the cover, it is not necessary to route the exhaust duct to the vehicle, and the battery unit can be easily mounted on the vehicle. Assembly workability is also improved. Further, since the exhaust passage extends in the vehicle width direction, the vehicle battery unit can be downsized in the front-rear direction.
- the air that has cooled the battery is exhausted to the rail housing portion that is the lowermost part of the passenger compartment, so that the exhaust flow and the exhaust temperature can be made. Can be introduced. Thereby, the discomfort to a passenger
- FIG. 4 is a cross-sectional view taken along line AA in FIG. 3. It is an external appearance perspective view of IPU. It is a perspective view which shows the battery and electrical component supported by the IPU frame.
- FIG. 7 is a sectional view taken along line BB in FIG. 6. It is the perspective view which looked at the IPU cover from the back side. It is CC sectional view taken on the line of FIG. It is a top view of a floor.
- FIG. 12 is a sectional view taken along line DD in FIG. 11.
- FIG. 12 is a cross-sectional view taken along line EE in FIG. 11.
- the electric vehicle according to the present embodiment is an electric vehicle that travels with a driving force of a motor driven by electric power supplied from an IPU (Intelligent Power Unit) disposed below the floor panel.
- IPU Intelligent Power Unit
- the electric vehicle V has a front door 6 that is openably and closably supported by front door mounting openings 5 formed on both sides of the front seat 1.
- a sliding door 9 is provided in the rear door attachment opening 7 so as to be openable and closable obliquely rearward on the left and right.
- the slide door 9 is slidably supported on the vehicle body by arms (only the lower arm LA is shown in FIGS. 12 and 13) provided at the upper portion, the central portion, and the lower portion.
- a step 60 is provided on the floor panel 3 at the foot of the slide door 9 so as to be adjacent to the slide door 9, and a rail for guiding a lower arm LA provided at the lower portion of the slide door 9 below the step 60.
- a rail accommodating portion 17 in which 18 is arranged is provided.
- the electric vehicle V includes a floor F on which the front seat 1 is installed, a skeleton member 2 mainly disposed below the floor F, a lower side of the front seat 1, and The IPU 20 disposed under the floor F and the IPU protective case 8 that houses the IPU 20 are provided.
- the floor F is a substantially plate-like floor panel 3 fixed to a pair of floor frames 14 constituting a part of the skeleton member 2, and an IPU protective cover 4 provided on the floor panel 3 and covering the IPU protective case 8. And a floor carpet 19 as an interior member affixed to the upper surfaces of the floor panel 3 and the IPU protective cover 4, and a step 60.
- an opening 3a is formed at a position corresponding to the lower side of the front seat 1, and the upper side of the IPU 20 is disposed in a space below the front seat 1 beyond the floor panel 3.
- FIG. 3 only the front seat 1 on which the driver sits is shown, and the passenger seat is omitted.
- the IPU protective cover 4 is a cover member that swells upward and has an internal space on the lower surface side, is fixed on the floor panel 3 so as to cover the opening 3a of the floor panel 3, and covers the upper part of the IPU 20. Further, an air inlet 4 a for cooling the IPU 20 is provided on the left side of the IPU protective cover 4.
- the skeleton member 2 is disposed inward of the pair of left and right side sills 10 extending in the front-rear direction, the first cross member 11, the second cross member 12, the third cross member 13, and the side sill 10 extending in the left-right direction. And a pair of auxiliary frames 15 extending inwardly from the side sill 10 and connected to the floor frame 14.
- the first cross member 11 is fixed between the pair of side sills 10 in front of the IPU 20 and disposed below the floor F.
- the second cross member 12 is fixed between the pair of floor frames 14 behind the IPU 20 and disposed below the floor F.
- first cross member 11 and the second cross member 12 are arranged with a space in the front-rear direction, and there is a space for accommodating the IPU 20 between the first cross member 11 and the second cross member 12. Is formed.
- the space between the first cross member 11 and the second cross member 12 and the space above the second cross member 12 are positioned below the front seat 1. That is, the first cross member 11 and the second cross member 12 are provided so as to be below the opening 3 a of the floor panel 3. Thereby, the lower part of IPU20 arrange
- FIG. 5 the lower part of IPU20 arrange
- the third cross member 13 is a cross member that is formed integrally with the IPU protective cover 4 and extends in the left-right direction along the upper surface of the IPU protective cover 4, and is disposed below the center portion of the front seat 1. . Both ends of the third cross member 13 extend on the floor panel 3 and are fixed by bolts (not shown) that pass through the floor panel 3 and screw into the floor frame 14.
- the third cross member 13 is fastened with a seat support member 16 extending forward from the front surface along the IPU protective cover 4 and fixed to the first cross member 11.
- the seat support member 16 includes a front seat.
- the seat rail 1a of the inner leg 1 is fastened.
- the seat rail 1 b of the outer leg portion of the front seat 1 is fastened to the floor panel 3. Thereby, the front seat 1 is stably supported.
- the IPU protective case 8 is fixed to the first cross member 11 and the second cross member 12 and covers the front and rear and the lower side of the IPU case 21 that accommodates the IPU 20 via a gap H, and the IPU 20 is covered with muddy water, stone, or the like. Protect.
- the IPU 20 includes a plurality of batteries 40 and electrical components such as a DC-DC converter 41, an ECU 42, a cooling fan 43, and an inverter 44, and these are held by the IPU frame 24, and the IPU housing portion 22 of the IPU case 21. Is housed in.
- the plurality of batteries 40 are arranged on the left side of the IPU case 21, and the DC-DC converter 41, the ECU 42, the cooling fan 43 and the inverter 44 are arranged on the right side of the IPU case 21.
- the cooling fan 43 is disposed at the bottom right side of the IPU case 21, the ECU 42 and the inverter 44 are disposed above the cooling fan 43, and the DC-DC converter 41 includes the mounted cooling fan. 43 and the like, which is behind the electric vehicle V and is inclined obliquely upward.
- the ECU 42 controls various electrical equipment of the electric vehicle V.
- the inverter 44 converts the direct current of the battery 40 into an alternating current.
- the cooling fan 43 has a cylindrical impeller, and sucks air that has cooled the plurality of batteries 40 from the in-case intake duct 45 on the bottom surface side of the IPU case 21 that is one side in the rotation axis direction of the impeller, It is a blower that discharges the air sucked into the in-case exhaust duct 46 extending rearward of the electric vehicle V, which is the tangential direction of the impeller.
- the DC-DC converter 41 steps down the voltage of the DC power supplied from the battery 40, and a plurality of cooling fins 41b are arranged in parallel on the back surface of the DC-DC converter main body 41a.
- the DC-DC converter 41 is supported by the IPU frame 24 so as to be inclined obliquely upward, the DC-DC converter main body 41a is disposed outside the in-case exhaust duct 46, and the cooling fins 41b as a rectifying unit are provided in the case. It is arranged so as to protrude into the inner exhaust duct 46.
- a plurality of cooling fins 41 b arranged in parallel are arranged along the flow direction of the air flowing through the in-case exhaust duct 46. Therefore, the air discharged from the cooling fan 43 is rectified by the cooling fins 41b.
- the IPU case 21 is a shallow bottom body opened upward, and as shown in FIG. 5, the rear bottom portion 21 b that is the rear side bottom wall of the IPU case 21 is the front bottom portion 21 a that is the front side bottom wall. It is formed so that it may become above compared with. Thereby, while the accommodation space on the rear side of the IPU case 21 is reduced in the height direction, a space in which the second cross member 12 can be disposed below the rear side of the IPU 20 is formed.
- the IPU case 21 is a state in which the plurality of batteries 40, the DC-DC converter 41, the ECU 42, the cooling fan 43, the inverter 44, and the like are accommodated in the IPU accommodating portion 22, and the opening 23 of the IPU case 21 is provided with the IPU cover 26. Covered with
- the IPU cover 26 has an IPU intake port 27 formed slightly on the left side, a side extending portion 28 extending on both sides of the rear side, and an IPU exhaust port 29 formed on an end portion of the side extending portion 28.
- the IPU intake port 27 communicates with the intake port 4 a formed in the IPU protective cover 4.
- the rear portion of the IPU cover 26 is provided with a concave portion 30 having a concave surface on the left and right sides. The concave portion 30 divides a space between the IPU protective cover 4 and a tool escape for fixing the seat. Part.
- the IPU cover 26 includes a first IPU cover member 26A that covers the opening 23 of the IPU case 21, and a second IPU cover member 26B that covers the rear part of the first IPU cover member 26A from above, and the upper surface of the first IPU cover member 26A.
- An exhaust passage 33 extending in the vehicle width direction (left-right direction) is formed by 31 and the lower surface 32 of the second IPU cover member.
- the first IPU cover member 26 ⁇ / b> A is formed of a thin plate having substantially the same shape as the opening 23 of the IPU case 21, and an exhaust passage introduction port 35 communicating with the exhaust passage 33 is provided on the right side of the rear part.
- the exhaust passage introduction port 35 is connected to the other end 46 b of the in-case exhaust duct 46 whose one end 46 a is connected to the cooling fan 43, and introduces the air discharged from the cooling fan 43 into the exhaust passage 33.
- the second IPU cover member 26B is composed of a horizontally long thin plate extending in the left-right direction, and annular side extending portions 28 extending further to the side than the first IPU cover member 26A are provided at the left and right ends.
- the IPU exhaust port 29 formed in the laterally extending portion 28 opens toward the left-right direction of the electric vehicle V, which is the vehicle width direction, and is located between the floor panel 3 and the floor carpet 19.
- the vicinity of the exhaust passage introduction port 35 formed in the first IPU cover member 26 ⁇ / b> A forms a branch portion 36 that divides the air introduced from the exhaust passage introduction port 35 left and right.
- the air introduced from the exhaust passage introduction port 35 is divided into left and right at the branch portion 36, A part is discharged from the IPU exhaust port 29 of the left side extending portion 28 via the left exhaust passage 33A, and the rest is discharged from the IPU exhaust port 29 of the right side extending portion 28 via the right exhaust passage 33B.
- the second IPU cover member 26B bulges downward in the branching portion 36, so that a bulging portion 37 that bulges upstream in the air flow direction is formed, and smooth diversion is possible.
- the bulging portion 37 corresponds to the right concave portion 30.
- the concave portion 30 is formed on the upper side by recessing a part of the second IPU cover member 26B, and the bulging portion 37 is formed on the lower side. It is formed.
- the left exhaust passage 33A and the right exhaust passage 33B are provided with sound absorbing materials 38 and 39 on the inner surface so as to absorb acoustic energy of noise propagating through the exhaust passage 33.
- a part of the first IPU cover member 26A bulges downward so that the sound absorbing material accommodating portion 51 is recessed in the left exhaust passage 33A, and the sound absorbing material 38 is exposed to the left exhaust passage 33A. It is accommodated in the sound absorbing material accommodating portion 51.
- a part of the second IPU cover member 26B bulges upward so that the sound absorbing material accommodation portion 52 is recessed in the right exhaust passage 33B, and the sound absorbing material 39 is exposed to the right exhaust passage 33B. In this way, it is accommodated in the sound absorbing material accommodating portion 52.
- the sound absorbing materials 38 and 39 may be fixed with an adhesive, or may be fixed with claws formed in the sound absorbing material accommodating portions 51 and 52.
- the IPU 20 configured as described above includes a plurality of batteries 40 supported by the IPU frame 24, a DC-DC converter 41, an ECU 42, a cooling fan 43, an inverter 44, and the like housed in the IPU housing part 22 of the IPU case 21,
- the opening 23 of the IPU case 21 is covered with an IPU cover 26.
- leg portions 25 of the IPU frame 24 that are separated from each other in the front-rear direction are extended outward from the IPU housing portion 22 and directly to the floor frame 14.
- the IPU case 21 is suspended in the opening 3 a of the floor panel 3 by being fastened or fastened to the floor panel 3 via a reinforcing member (not shown) extended from the floor frame 14. Fixed in state.
- an exhaust passage 33 is provided in the IPU cover 26 as a separate space from the IPU accommodating portion 22, and air in the vehicle compartment introduced from the IPU intake port 27 is disposed in the IPU accommodating portion 22.
- the battery 40 flows into the exhaust passage 33 via the in-case intake duct 45, the cooling fan 43, the in-case exhaust duct 46, and the exhaust passage introduction port 35.
- the air passing through the in-case exhaust duct 46 cools the DC-DC converter 41 through the cooling fins 41b protruding into the in-case exhaust duct 46 and is rectified by the cooling fins 41b.
- the rectified air is introduced into the exhaust passage 33 from the exhaust passage introduction port 35, and then is branched to the left and right at the branch portion 36, and a part thereof is from the IPU exhaust port 29 of the left side extending portion 28 via the left exhaust passage 33A. The remaining portion is discharged from the IPU exhaust port 29 of the right side extending portion 28 through the right exhaust passage 33B.
- the floor carpet 19 has ears 19b extending on both the left and right sides of the front end portion of the carpet body 19a formed in a substantially rectangular shape so as to cover substantially the entire surface of the floor panel 3 behind the IPU 20 so as to cover the IPU exhaust port 29. It is installed. Resin spacers 70 are provided on the back surface 19c of the floor carpet 19 so as to extend in the front-rear direction from the front end portion to the rear end portion of the rear door mounting opening 7 at the left and right ends of the floor carpet 19 including the ear portions 19b. It is provided as a single body or as a separate body.
- a harness 53 is disposed so as to face the IPU exhaust port 29 via a predetermined gap and to extend obliquely rearward from the IPU exhaust port 29.
- the spacer 70 has a U-shaped cross section that opens downward, covers the harness 53 from above, and extends in the longitudinal direction of the electric vehicle V on the back surface 71 in the longitudinal direction of the electric vehicle V and in the vehicle width direction of the electric vehicle V. Extending left and right direction ribs 74 are provided in a lattice shape.
- the inner end 61 of the above-described step 60 is disposed so as to overlap the both ends in the vehicle width direction of the floor carpet 19 where the spacer 70 is disposed.
- the step 60 has a substantially L-shaped cross section, and a step side wall 63 extending from the outer end portion of the step body 62 extending in the front-rear direction substantially parallel to the floor panel 3 to the vicinity of the rail accommodating portion 17 is extended. ing.
- a buffer portion 65 is formed in which the volume on the back side is larger than that at the front by the surface 60b of the step main body 62 running backward.
- the step 60 is fixed to the floor panel 3 via a clip 67 integrally formed on the back surface 60 a of the step body 62.
- the harness 53 extending obliquely rearward below the spacer 70 enters the lower part of the step 60 before the buffer part 65 and passes through the lower step space S1 provided below the step 60 and between the rail housing part 17. Extending backwards.
- vertical ribs 68 extending in the front-rear direction of the electric vehicle V and horizontal ribs 69 extending in the vehicle width direction of the electric vehicle V are provided in a lattice shape.
- the air exhausted from the IPU exhaust port 29 disposed between the floor panel 3 and the floor carpet 19 is below the floor carpet 19 in the vicinity of the ear portion 19b of the floor carpet 19. It is introduced into the back surface 71 of the provided spacer 70, is guided by the front-rear direction rib 73 while being guided by the harness 53 extending obliquely rearward, and flows from the front to the rear of the spacer 70. That is, the space between the floor panel 3 and the floor carpet 19, more specifically, the space formed between the floor panel 3 and the spacer 70 forms the exhaust passage 75.
- the height H1 of the front-rear rib 73 formed on the back surface 71 of the spacer 70 forming the exhaust passage 75 is higher than the height H2 of the left-right rib 74, and the exhaust is electrically discharged. It is easy to pass through the back surface 71 of the spacer 70 from the front of the vehicle V toward the rear.
- the height H1 of the front-rear direction rib 73 is lower than the height H2 of the left-right direction rib 74, and the exhaust is left and right. Guided by the directional rib 74 and introduced into the buffer section 65 of step 60.
- the buffer unit 65 has a larger volume than the front of the step 60 and the back surface space of the spacer 70, and the directivity of the exhaust is reduced by the buffer unit 65.
- the ribs formed on the back surface 60a of the buffer unit 65 have the height H4 of the horizontal ribs 69 higher than the height H3 of the vertical ribs 68, and the air introduced into the buffer unit 65 further passes inside the step 60. Is guided by the lateral rib 69 to the outside, further guided downward by the step side wall 63, and discharged to the rail accommodating portion 17 through the step lower space S1.
- the rail accommodating portion 17 has a larger volume than the buffer portion 65, and the exhaust is diffused in the rail accommodating portion 17. The air staying in the rail accommodating portion 17 is returned to the vehicle interior through a gap S2 formed between the surface 60b of the step 60 and the inner side surface 9a of the slide door 9 when the slide door 9 is closed.
- the exhaust gas diffuses by passing through the rail housing portion 17, and the exhaust gas having no directivity returns to the vehicle interior. It should be noted that all the exhaust gas may not pass through the buffer unit 65 as described above, and a part of the exhaust gas may be discharged to the rail housing unit 17 via the step space S1 before the buffer unit 65.
- the cooling fins 41b integrally formed with the DC-DC converter 41 are arranged on the upstream side of the branching portion 36, so that the exhaust gas rectified by the cooling fins 41b is supplied to the branching portion. 36 can be diverted. Thereby, exhaust can be shunted smoothly and pressure loss can be reduced. Further, since the DC-DC converter 41 can be cooled via the cooling fins 41b when the exhaust gas is rectified, the cooling efficiency is also improved. Furthermore, the number of parts can be reduced and the IPU 20 can be reduced in size by using the cooling fins 41b of the DC-DC converter 41 as a rectifying unit as compared with a case where a rectifying unit is separately provided.
- the branch portion 36 that divides the air that has cooled the DC-DC converter 41 is provided with a bulging portion 37 that bulges upstream in the flow direction of the air that has cooled the DC-DC converter 41, so that smoother Can be diverted, reducing pressure loss and suppressing noise.
- the cooling fan 43 is disposed at the bottom of the IPU case 21, and an electrical device such as the ECU 42 is disposed above the cooling fan 43.
- an electric device such as the ECU 42, the DC-DC converter 41, and the cooling fan are arranged. 43 can be stored compactly in the IPU case 21 and can be mounted on a compact electric vehicle V in which the longitudinal length of the IPU case 21 is shortened.
- the IPU cover 26 is formed with an exhaust passage 33 that communicates with the IPU accommodating portion 22 and exhausts air that has cooled the battery 40, and has an IPU exhaust port 29 at the end of the exhaust passage 33.
- the exhaust duct formed separately from the IPU cover 26 is assembled to the IPU cover 26, it is not necessary to route the exhaust duct to the vehicle, and the IPU 20 can be easily mounted on the electric vehicle V and assembled. Installation workability is improved.
- the IPU cover 26 includes a first IPU cover member 26A that covers the opening 23 of the IPU case 21, and a second IPU cover member 26B that covers a part of the first IPU cover member 26A from above, and the first IPU cover member 26A. Since the exhaust path 33 is formed by the second IPU cover member 26B, the exhaust path integrated IPU 20 can be configured with a simple configuration.
- IPU exhaust port 29 opens in the vehicle width direction, it is not necessary to bend the exhaust passage, and pressure loss can be reduced.
- the IPU intake port 27 communicating with the IPU accommodating portion 22 is provided in the IPU cover 26, it is not necessary to route not only the exhaust duct but also the intake duct to the electric vehicle V, and the IPU 20 is connected to the electric vehicle V. Mounting becomes easier and assembly workability is improved.
- the IPU 20 is disposed under the front seat 1, it can be easily mounted on the electric vehicle V.
- the IPU exhaust port 29 exhausts between the floor panel 3 and the floor carpet, the air that has cooled the battery 40 can be discharged into the vehicle interior without surrounding the exhaust duct.
- the IPU cover 26 is formed with an exhaust passage 33 that communicates with the IPU accommodating portion 22 and discharges air that has cooled the battery 40.
- the exhaust passage 33 extends at least on one side in the vehicle width direction, Since the IPU exhaust port 29 is provided at one end, it is not necessary to route the exhaust duct to the vehicle as compared with the case where the exhaust duct formed separately from the IPU cover 26 is assembled to the IPU cover 26. Can be easily mounted on the electric vehicle V and the assembly workability is improved. Further, since the exhaust passage 33 extends in the vehicle width direction, the IPU 20 can be reduced in size in the front-rear direction.
- the exhaust passage 33 extends on both sides in the vehicle width direction and has the IPU exhaust ports 29 at both ends, so that the exhaust can be dispersed.
- the branching portion 36 that divides the air that has cooled the battery to both sides in the vehicle width direction is provided with a bulging portion 37 that bulges upstream in the flow direction of the air that has cooled the battery 40, so that the smooth diversion It is possible to reduce pressure loss and suppress noise.
- the sound absorbing materials 38 and 39 are disposed on the inner surface of the exhaust passage 33, the acoustic energy of noise propagating through the exhaust passage 33 can be absorbed. Since the sound absorbing materials 38 and 39 are accommodated in the sound absorbing material accommodating portions 51 and 52 recessed in the exhaust passage 33 so as to be exposed to the exhaust passage 33, the sound absorbing materials 38 and 39 protrude into the exhaust passage 33. Can be suppressed. Further, by exposing the sound absorbing materials 38 and 39 in the exhaust passage 33, noise can be reduced over a relatively wide frequency range.
- the IPU cover 26 includes a first IPU cover member 26A that covers the opening 23 of the IPU case 21, and a second IPU cover member 26B that covers a part of the first IPU cover member 26A from above, and the first IPU cover member 26A. Since the exhaust path 33 is formed by the second IPU cover member 26B, the exhaust path integrated IPU 20 can be configured with a simple configuration. Further, when mounting on other vehicles having different specifications, it is possible to cope with the change by designing only the second IPU cover member 26B without changing the design of the entire IPU cover 26.
- IPU exhaust port 29 opens in the vehicle width direction, it is not necessary to bend the exhaust passage, and pressure loss can be reduced.
- the IPU intake port 27 communicating with the IPU accommodating portion 22 is provided in the IPU cover 26, it is not necessary to route not only the exhaust duct but also the intake duct to the electric vehicle V, and the IPU 20 is connected to the electric vehicle V. Mounting becomes easier and assembly workability is improved.
- the IPU exhaust port 29 exhausts between the floor panel 3 and the floor carpet, the air that has cooled the battery 40 can be discharged into the vehicle interior without surrounding the exhaust duct.
- an exhaust path for exhausting the air that has cooled the battery 40 is connected to the exhaust passage 33 extending from the battery 40 in the vehicle width direction, and to the step lower space S1 provided below the step 60 while being connected to the exhaust passage 33.
- the exhaust passage 75 communicates with the rail housing portion 17 via the lower step space S1, so that the air that has cooled the battery 40 is exhausted to the rail housing portion 17 that is the lowermost part of the passenger compartment.
- the Therefore, the exhaust flow and the exhaust temperature can be made in the rail accommodating portion 17, and the exhaust can be dispersed and gradually introduced into the vehicle interior. Thereby, the discomfort to a passenger
- the rail accommodating part 17 is the lowest part in the passenger compartment and close to the slide door 9, it is the part having the lowest temperature in the passenger compartment. Therefore, exhausting to the rail accommodating part 17 improves the heat exchange rate.
- the exhaust passage 75 is a space formed by the floor panel 3 and the floor carpet 19 that covers a part of the floor panel 3, it is possible to reduce the number of parts by eliminating the need for the exhaust duct, and to the vehicle of the exhaust duct. This eliminates the need for handling and improves assembly workability.
- the exhaust passage 75 is configured so as to include a space formed by the floor panel 3 and the spacer 70 provided integrally with or separately from the floor carpet 19, whereby the spacer 70 that reinforces the floor carpet 19 is disposed in the exhaust path.
- the exhaust passage 33 is an exhaust passage integrally formed with the IPU cover 26, the exhaust duct is routed to the vehicle as compared with the case where the exhaust duct formed separately from the IPU cover 26 is assembled to the IPU cover 26. Eliminates the need to improve assembly workability.
- the spacer 70 has a U-shaped cross section that opens downward, and the back surface of the spacer 70 is provided with front and rear direction ribs 73 and left and right direction ribs 74 in a lattice shape. Since the height H1 of the front-rear rib 73 includes a region higher than the height H2 of the left-right rib 74, the exhaust is guided in the front-rear direction in this region. Therefore, exhaust can be guided to step 60 without stagnation using the front-rear rib 73 as a current plate.
- harness 53 is disposed obliquely rearward from the IPU exhaust port 29 of the exhaust passage 33, exhaust can be guided toward the step 60 by using a side wall of the harness 53 as a rectifying wall.
- the step 60 has a buffer part 65 whose volume is enlarged compared with the front part at the rear, and the exhaust passage 75 is communicated with the rail accommodating part 17 through the buffer part 65 of the step 60. Pressure loss can be reduced. Further, by exhausting after the directivity is eased, it is possible to suppress discomfort to the passengers in the exhaust in the vehicle interior.
- vertical ribs 68 and horizontal ribs 69 are provided in a lattice shape, and in the exhaust passage 75, the height H 4 of the horizontal ribs 69 is higher than the height H 3 of the vertical ribs 68. Since it communicates with the rail housing portion 17 through the region, the exhaust can be guided to the rail housing portion 17 without stagnation using the lateral rib 69 as a current plate.
- an exhaust path for exhausting the air that has cooled the battery 40 is connected to the exhaust passage 33 extending from the battery 40 in the vehicle width direction, and to the step lower space S1 provided below the step 60 while being connected to the exhaust passage 33. Since the exhaust passage 75 is a space formed by the floor panel 3 and the floor carpet 19 covering a part of the floor panel 3, the number of parts can be reduced by eliminating the need for an exhaust duct. At the same time, it is not necessary to route the exhaust duct to the vehicle, and the assembly workability is improved.
- a high-voltage system device for example, the DC-DC converter 41 in the above embodiment
- a cooling fan for example, the cooling fan 43 in the above embodiment
- a high-pressure equipment unit for a vehicle for example, the IPU 20 in the above embodiment
- the cooling fan is disposed upstream of the high-pressure equipment
- An exhaust part for example, the exhaust passage 33 in the above embodiment
- the exhaust part is provided with a branch part (for example, the branch part 36 in the above embodiment) for diverting the air that has cooled the high-pressure equipment.
- a rectifying part for example, the cooling fin 41b in the above embodiment
- the rectifying unit is formed integrally with the high-voltage equipment.
- the branch portion is provided with a bulge portion (for example, the bulge portion 37 in the above-described embodiment) that bulges upstream in the flow direction of the air that has cooled the high-pressure equipment.
- the opening of the case (for example, the opening 23 in the above embodiment) is covered with a cover (for example, the IPU cover 26 in the above embodiment),
- the cover is integrally formed with the exhaust part for discharging the air that has cooled the high-pressure equipment,
- the exhaust part has an exhaust port (for example, the IPU exhaust port 29 in the above-described embodiment) at the end.
- the cover includes a first cover member that covers the opening of the case (for example, the first IPU cover member 26A in the above embodiment), and a second cover member that covers a part of the first cover member from above or below (for example, the second IPU cover member 26B) in the above embodiment,
- the exhaust portion is formed by the first cover member and the second cover member,
- the first cover member or the second cover member is formed with an exhaust introduction port (for example, the exhaust passage introduction port 35 in the above embodiment) that introduces air that has cooled the high-pressure equipment into the exhaust unit.
- the exhaust part extends in the vehicle width direction
- the exhaust port opens in the vehicle width direction.
- the cover is provided with an intake port (for example, the IPU intake port 27 in the above embodiment) communicating with the inside of the case.
- an intake port for example, the IPU intake port 27 in the above embodiment
- the high-voltage equipment unit for a vehicle is disposed under a vehicle seat (for example, the front seat 1 in the above embodiment).
- the exhaust port exhausts between a floor panel (for example, the floor panel 3 in the above embodiment) and a floor carpet.
- the DC-DC converter 41 is exemplified as the high-voltage system device.
- the DC-DC converter 41 is not limited to the DC-DC converter 41, and an inverter 44 or other high-voltage system device may be used.
- the IPU 20 in which the battery 40 is unitized in addition to the high voltage system equipment such as the DC-DC converter 41 is illustrated.
- the battery 40 is not necessarily united with the high voltage system equipment. It is sufficient that the high-pressure equipment is accommodated together with the cooling fan 43.
- positioned under the front seat 1 was illustrated, it is not restricted to this, You may arrange
- the exhaust passage 33 diverted the air introduce
- the IPU 20 is not limited to the exhaust passage integrated type, and an exhaust duct and / or an intake duct may be connected to the IPU 20.
- a battery for example, the battery 40 in the above embodiment
- a case e.g., IPU case 21 in the above embodiment
- a battery housing part e.g., the IPU housing part 22 in the above embodiment
- a cover for example, the IPU cover 26 in the above embodiment
- a vehicle battery unit for example, the IPU 20 in the above-described embodiment
- the cover is formed with an exhaust passage (for example, the exhaust passage 33 in the above embodiment) that communicates with the battery housing portion and discharges air that has cooled the battery.
- the exhaust passage extends at least on one side in the vehicle width direction, and has an exhaust port (for example, the IPU exhaust port 29 in the above-described embodiment) at the end of the at least one side.
- the exhaust passage extends on both sides in the vehicle width direction, and has the exhaust ports at both ends.
- the exhaust passage includes a branch portion (for example, the branch portion 36 in the above embodiment) that diverts the air that has cooled the battery to both sides in the vehicle width direction.
- the branch portion is provided with a bulge portion (for example, the bulge portion 37 in the above embodiment) that bulges upstream in the flow direction of the air that has cooled the battery.
- a sound absorbing material (for example, the sound absorbing materials 38 and 39 in the above-described embodiment) is disposed on the inner surface of the exhaust passage.
- a sound absorbing material accommodating portion for accommodating the sound absorbing material (for example, the sound absorbing material accommodating portions 51 and 52 in the above embodiment) is recessed, The sound absorbing material is accommodated in the sound absorbing material accommodating portion so as to be exposed in the exhaust passage.
- the cover includes a first cover member that covers the opening of the case (for example, the first IPU cover member 26A in the above embodiment), and a second cover member that covers a part of the first cover member from above or below (for example, the second IPU cover member 26B) in the above embodiment,
- the exhaust passage is formed by the first cover member and the second cover member,
- the first cover member or the second cover member is formed with an exhaust passage introduction port (for example, the exhaust passage introduction port 35 in the above embodiment) for introducing the air that has cooled the battery into the exhaust passage.
- the exhaust port opens in the vehicle width direction.
- the cover is provided with an air inlet (for example, the IPU air inlet 27 in the above embodiment) that communicates with the battery housing.
- an air inlet for example, the IPU air inlet 27 in the above embodiment
- the exhaust port exhausts between a floor panel (for example, the floor panel 3 in the above embodiment) and a floor carpet.
- the IPU 20 in which electric parts such as the DC-DC converter 41, the ECU 42, and the cooling fan 43 are unitized in addition to the battery 40 is illustrated.
- the electric parts are not necessarily unitized with the battery 40.
- the battery 40 can be applied to a battery unit housed in a case and a cover.
- positioned under the front seat 1 was illustrated, it is not restricted to this, You may arrange
- the IPU cover 26 includes the first IPU cover member 26A that covers the opening 23 of the IPU case 21 and the second IPU cover member 26B that covers a part of the first IPU cover member 26A from above.
- the exhaust passage introduction port 35 is provided in the first IPU cover member 26A.
- the second IPU cover member 26B covers a part of the first IPU cover member 26A from below, and the exhaust passage introduction port 35 is provided in the second IPU cover member 26B. It may be provided.
- the IPU 20 may have an intake duct connected to the IPU 20.
- a front seat for example, the front seat 1 in the above embodiment
- a battery for example, a battery (for example, the IPU protective case 8 in the above embodiment) provided in a floor panel (for example, the floor panel 3 in the above embodiment) and disposed below the front seat (for example, the floor panel 3 in the above embodiment).
- a sliding door for example, the sliding door 9 in the above embodiment
- a step e.g., step 60 in the above embodiment
- a rail housing portion for example, the rail housing portion 17 in the above embodiment
- a rail for example, the rail 18 in the above embodiment
- Prepared A vehicle in which the battery is cooled by air in a vehicle compartment, An exhaust path for exhausting air that has cooled the battery is connected to the first exhaust path (for example, the exhaust path 33 in the above embodiment) extending in the left-right direction from the battery and the first exhaust path, and A second exhaust path (for example, the exhaust passage 75 in the above embodiment) connected to a lower step space (for example, the lower step space S1 in the above embodiment) provided below,
- the second exhaust path communicates with the rail housing portion via the step-under space.
- the second exhaust path is a space formed by the floor panel and a floor carpet that covers at least a part of the floor panel (for example, the floor carpet 19 in the above embodiment).
- the floor carpet is provided with a spacer (for example, the spacer 70 in the above embodiment) at an end portion in the left-right direction as a single body or separately.
- the second exhaust path includes a space formed by the floor panel and the spacer.
- the battery is accommodated in a case (for example, the IPU case 21 in the above embodiment) and covers a cover (for example, the IPU cover in the above embodiment) that covers an opening (for example, the opening 23 in the above embodiment).
- the first exhaust path is an exhaust passage integrally formed with the cover.
- the spacer has a U-shaped cross section that opens downward, On the back surface of the spacer, a longitudinal rib extending in the longitudinal direction of the vehicle (for example, the longitudinal rib 73 in the embodiment) and a lateral rib extending in the lateral direction of the vehicle (for example, the lateral rib in the embodiment). 74) are provided in a grid pattern,
- the second exhaust path includes a region in which the height of the front-rear rib (for example, height H1 in the embodiment) is higher than the height of the left-right rib (for example, height H2 in the embodiment). .
- the step extends in the front-rear direction substantially parallel to the floor panel (for example, the step body 62 in the above embodiment), and extends downward from the outer end of the step body to the vicinity of the rail housing portion.
- Step side wall for example, step side wall 63 in the above embodiment
- a vertical rib for example, the vertical rib 68 in the above-described embodiment
- a lateral rib for example, the left-right direction of the vehicle.
- the lateral ribs 69) in the above embodiment are provided in a lattice shape
- the height of the horizontal rib (for example, the height H4 in the embodiment) is higher than the height of the vertical rib (for example, the height H3 in the embodiment). It communicates with the rail housing.
- the step has a buffer part (for example, the buffer part 65 in the above embodiment) whose volume is enlarged compared to the front part on the rear side.
- the second exhaust path communicates with the rail accommodating portion via the buffer portion of the step.
- a harness (for example, the harness 53 in the above embodiment) is disposed obliquely rearward from the exhaust port of the first exhaust path.
- a front seat (for example, the front seat 1 in the above embodiment);
- a battery (for example, a battery (for example, the IPU protective case 8 in the above embodiment) provided in a floor panel (for example, the floor panel 3 in the above embodiment) and disposed below the front seat (for example, the floor panel 3 in the above embodiment).
- a sliding door for example, the sliding door 9 in the above embodiment
- a step e.g., step 60 in the above embodiment
- An exhaust path for exhausting air that has cooled the battery is connected to the first exhaust path (for example, the exhaust path 33 in the above embodiment) extending in the left-right direction from the battery and the first exhaust path, and
- a second exhaust path for example, the exhaust passage 75 in the above embodiment connected to a lower step space (for example, the lower step space S1 in the above embodiment) provided below
- the second exhaust path is a space formed by the floor panel and a floor carpet that covers at least a part of the floor panel (for example, the floor carpet 19 in the above embodiment).
- the floor carpet is provided with a spacer (for example, the spacer 70 in the above embodiment) at an end portion in the left-right direction as a single body or separately.
- the second exhaust path includes a space formed by the floor panel and the spacer.
- the IPU 20 in which electric parts such as the DC-DC converter 41, the ECU 42, and the cooling fan 43 are unitized in addition to the battery 40 is illustrated.
- the electric parts are not necessarily unitized with the battery 40.
- the battery 40 can be applied to a battery unit housed in a case and a cover.
- positioned under the front seat 1 was illustrated, it is not restricted to this, You may arrange
- the IPU cover 26 includes the first IPU cover member 26A that covers the opening 23 of the IPU case 21 and the second IPU cover member 26B that covers a part of the first IPU cover member 26A from above.
- the exhaust passage introduction port 35 is provided in the first IPU cover member 26A.
- the second IPU cover member 26B covers a part of the first IPU cover member 26A from below, and the exhaust passage introduction port 35 is provided in the second IPU cover member 26B.
- the IPU 20 is not limited to the exhaust passage integrated type, and an exhaust duct and / or an intake duct may be connected to the IPU 20. Further, the step 60 may not include the buffer unit 65. Further, the exhaust flow and the exhaust temperature that cool the battery 40 may be smoothed in the step-down space S1, and the exhaust may be dispersed and gradually introduced into the vehicle interior.
- exhaust gas can be rectified without increasing the number of parts by integrally forming the rectification unit in the high-pressure equipment, and the cooling efficiency of the high-pressure equipment is also improved. Moreover, exhaust gas can be diverted smoothly by passing through the branch portion after rectification, and pressure loss can be reduced.
- the bulged portion provided at the branching portion bulges out so as to face the inflowing exhaust, so that the rectified exhaust can be diverted more smoothly, pressure loss is reduced, and noise is reduced. Can be suppressed.
- the electric device, the high voltage system device and the cooling fan can be stored compactly in the case, and can be mounted on a compact vehicle in which the length of the case is shortened.
- the exhaust unit integrated battery unit can be configured with a simple configuration. According to the above (6), by providing the exhaust opening that opens in the vehicle width direction at the end of the exhaust passage that extends in the vehicle width direction, it is not necessary to bend the exhaust passage and pressure loss can be reduced.
- the exhaust passage extends in the vehicle width direction, the vehicle battery unit can be downsized in the front-rear direction.
- the exhaust passage extends on both sides in the vehicle width direction and the exhaust ports are provided at the end portions on both sides, the exhaust can be dispersed. Further, the bulging portion provided at the branching portion bulges out so as to face the inflowing exhaust gas, thereby enabling a smooth diversion, reducing pressure loss and suppressing noise.
- the acoustic energy of noise propagating in the exhaust passage can be absorbed.
- noise can be reduced over a relatively wide frequency range by suppressing the sound absorbing material from protruding into the exhaust passage and exposing the sound absorbing material in the exhaust passage.
- the exhaust passage integrated battery unit can be configured with a simple configuration. According to the above (15), by providing the exhaust opening that opens in the vehicle width direction at the end of the exhaust passage extending in the vehicle width direction, it is not necessary to bend the exhaust passage, and pressure loss can be reduced.
- the air which cooled the battery can be discharged
- the air that has cooled the battery is exhausted to the rail housing portion that is the lowermost part of the passenger compartment, so that the exhaust flow and the exhaust temperature can be made. Can be introduced. Thereby, the discomfort to a passenger
- a floor carpet can be reinforced with the front-back direction rib and the left-right direction rib provided in the grid
- the step can be reinforced by the vertical ribs and the horizontal ribs provided in a lattice shape. Further, since the horizontal rib is higher than the vertical rib, the exhaust gas is guided in the left-right direction. Therefore, the exhaust can be guided to the rail housing portion without stagnation using the lateral rib as a current plate. According to the above (24), pressure loss can be reduced by the buffer unit. Further, by exhausting after the directivity is eased, it is possible to suppress discomfort to the passengers in the exhaust in the vehicle interior. According to the above (25), exhaust can be guided toward the step by using the side wall of the harness as the rectifying wall.
- the number of parts can be reduced by eliminating the need for the exhaust duct, and the handling of the exhaust duct to the vehicle becomes unnecessary, and the assembly workability is improved.
- the spacer which reinforces a floor carpet can be made into an exhaust flow path.
- the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. can be made as appropriate.
- an electric vehicle using only a motor as a drive source has been described as an applicable vehicle, the present invention is not limited to this, and may be, for example, a hybrid vehicle.
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Abstract
Description
第1態様は、
高圧系機器(例えば、後述の実施形態におけるDC-DCコンバータ41)と、
車室内の空気を取り込む冷却ファン(例えば、後述の実施形態における冷却ファン43)と、を備え、
車室内の空気によって該高圧系機器が冷却される、車両用高圧系機器ユニット(例えば、後述の実施形態におけるIPU20)であって、
前記高圧系機器の上流側に前記冷却ファンが配設されるとともに、
前記高圧系機器の下流側に排気部(例えば、後述の実施形態における排気通路33)が配設され、
該排気部には、前記高圧系機器を冷却した空気を分流させる分岐部(例えば、後述の実施形態における分岐部36)が設けられ、
前記分岐部の上流側には、整流部(例えば、後述の実施形態における冷却フィン41b)が設けられ、
該整流部は、前記高圧系機器に一体に形成される。
バッテリ(例えば、後述の実施形態におけるバッテリ40)と、
該バッテリを収容するバッテリ収容部(例えば、後述の実施形態におけるIPU収容部22)を有するケース(例えば、後述の実施形態におけるIPUケース21)と、
該ケースの開口部(例えば、後述の実施形態における開口部23)を覆うカバー(例えば、後述の実施形態におけるIPUカバー26)と、を備え、
車室内の空気によって該バッテリが冷却される、車両用バッテリユニット(例えば、後述の実施形態におけるIPU20)であって、
前記カバーには、前記バッテリ収容部に連通し、前記バッテリを冷却した空気を排出する排気通路(例えば、後述の実施形態における排気通路33)が形成され、
前記排気通路は、車幅方向において少なくとも一方側に延びるとともに、該少なくとも一方側の端部に排気口(例えば、後述の実施形態におけるIPU排気口29)を有する。
前部座席(例えば、後述の実施形態におけるフロントシート1)と、
フロアパネル(例えば、後述の実施形態におけるフロアパネル3)に設けられたバッテリ収納部(例えば、後述の実施形態におけるIPU保護ケース8)に収納され、該前部座席の下方に配設されるバッテリ(例えば、後述の実施形態におけるバッテリ40)と、
前記前部座席に対し斜め後方に位置するスライドドア(例えば、後述の実施形態におけるスライドドア9)と、
該スライドドアに隣接するように前記フロアパネル上に配置されるステップ(例えば、後述の実施形態におけるステップ60)と、
該ステップの下方に位置し、該スライドドアのスライド移動を案内するレール(例えば、後述の実施形態におけるレール18)が配置されたレール収容部(例えば、後述の実施形態におけるレール収容部17)と、を備え、
前記バッテリが車室内の空気によって冷却される、車両であって、
前記バッテリを冷却した空気を排気する排気経路が、前記バッテリから左右方向に延びる第1排気経路(例えば、後述の実施形態における排気通路33)と、該第1排気経路に接続されるとともに前記ステップの下方に設けられたステップ下空間(例えば、後述の実施形態におけるステップ下空間S1)に接続される第2排気経路(例えば、後述の実施形態における排気通路75)と、備え、
前記第2排気経路は、前記ステップ下空間を介して前記レール収容部に連通する。
(1) 高圧系機器(例えば、上記実施形態におけるDC-DCコンバータ41)と、
車室内の空気を取り込む冷却ファン(例えば、上記実施形態における冷却ファン43)と、を備え、
車室内の空気によって該高圧系機器が冷却される、車両用高圧系機器ユニット(例えば、上記実施形態におけるIPU20)であって、
前記高圧系機器の上流側に前記冷却ファンが配設されるとともに、
前記高圧系機器の下流側に排気部(例えば、上記実施形態における排気通路33)が配設され、
該排気部には、前記高圧系機器を冷却した空気を分流させる分岐部(例えば、上記実施形態における分岐部36)が設けられ、
前記分岐部の上流側には、整流部(例えば、上記実施形態における冷却フィン41b)が設けられ、
該整流部は、前記高圧系機器に一体に形成される。
(2) 上記(1)に加えて、
該分岐部には、前記高圧系機器を冷却した空気の流れ方向において上流側に膨出する膨出部(例えば、上記実施形態における膨出部37)が設けられる。
(3) 上記(1)又(2)に加えて、
電気機器(例えば、上記実施形態におけるECU42、インバータ44)と、
該電気機器、前記高圧系機器、及び前記冷却ファンを収容するケース(例えば、上記実施形態におけるIPUケース21)と、をさらに備え、
前記冷却ファンは、該ケースの底部に配設され、
前記電気機器は、前記冷却ファンの上方に配設され、
前記高圧系機器は、前記冷却ファンに対し車両の前後方向一方側であって、斜め上方に傾斜して配設される。
(4) 上記(3)に加えて、
前記ケースの開口部(例えば、上記実施形態における開口部23)は、カバー(例えば、上記実施形態におけるIPUカバー26)に覆われており、
前記カバーには、前記高圧系機器を冷却した空気を排出する前記排気部が一体に形成され、
該排気部は、端部に排気口(例えば、上記実施形態におけるIPU排気口29)を有する。
(5) 上記(4)に加えて、
前記カバーは、前記ケースの前記開口部を覆う第1カバー部材(例えば、上記実施形態における第1IPUカバー部材26A)と、前記第1カバー部材の一部を上方又は下方から覆う第2カバー部材(例えば、上記実施形態における第2IPUカバー部材26B)と、を備え、
前記第1カバー部材と前記第2カバー部材とにより前記排気部が形成され、
前記第1カバー部材又は前記第2カバー部材には、前記高圧系機器を冷却した空気を前記排気部に導入する排気導入口(例えば、上記実施形態における排気通路導入口35)が形成される。
(6) 上記(4)又は(5)に加えて、
前記排気部は、車幅方向に延び、
前記排気口は、車幅方向に向かって開口する。
(7) 上記(4)~(6)に加えて、
前記カバーには、前記ケースの内部に連通する吸気口(例えば、上記実施形態におけるIPU吸気口27)が設けられる。
(8) 上記(1)~(7)の車両用高圧系機器ユニットを搭載した車両であって、
前記車両用高圧系機器ユニットは車両の座席(例えば、上記実施形態におけるフロントシート1)下に配置される。
(9) 上記(4)~(7)の車両用高圧系機器ユニットを搭載した車両であって、
前記排気口は、フロアパネル(例えば、上記実施形態におけるフロアパネル3)とフロアカーペットの間に排気する。
上記実施形態では、高圧系機器としてDC-DCコンバータ41を例示したが、DC-DCコンバータ41に限らず、インバータ44でもよく、他の高圧系機器でもよい。
また、上記実施形態では、DC-DCコンバータ41等の高圧系機器に加えて、バッテリ40がユニット化されたIPU20を例示したが、必ずしもバッテリ40は高圧系機器と共にユニット化されている必要はなく、高圧系機器が冷却ファン43とともに収容されていればよい。
また、上記実施形態では、フロントシート1下に配置されたIPU20を例示したが、これに限らず、リアシート下に配置されてもよく、荷室又は荷室下に配置されてもよい。
また、上記実施形態では、排気通路33は、排気通路導入口35から導入された空気を分岐部36で左右に分流していたが、左右に分流せずに左右のいずれか一方のみから排出するようにしてもよい。
また、IPU20は排気通路一体型に限定されるものではなく、排気ダクト及び/又は吸気ダクトがIPU20に接続されていてもよい。
該バッテリを収容するバッテリ収容部(例えば、上記実施形態におけるIPU収容部22)を有するケース(例えば、上記実施形態におけるIPUケース21)と、
該ケースの開口部(例えば、上記実施形態における開口部23)を覆うカバー(例えば、上記実施形態におけるIPUカバー26)と、を備え、
車室内の空気によって該バッテリが冷却される、車両用バッテリユニット(例えば、上記実施形態におけるIPU20)であって、
前記カバーには、前記バッテリ収容部に連通し、前記バッテリを冷却した空気を排出する排気通路(例えば、上記実施形態における排気通路33)が形成され、
前記排気通路は、車幅方向において少なくとも一方側に延びるとともに、該少なくとも一方側の端部に排気口(例えば、上記実施形態におけるIPU排気口29)を有する。
(11) 上記(10)に加えて、
前記排気通路は、車幅方向において両側に延びるとともに、両側の端部に前記排気口を有し、
前記排気通路は、前記バッテリを冷却した空気を車幅方向において両側に分流させる分岐部(例えば、上記実施形態における分岐部36)を備え、
該分岐部には、前記バッテリを冷却した空気の流れ方向において上流側に膨出する膨出部(例えば、上記実施形態における膨出部37)が設けられる。
(12) 上記(10)又(11)に加えて、
前記排気通路には、内面に吸音材(例えば、上記実施形態における吸音材38、39)が配設される。
(13) 上記(12)に加えて、
前記排気通路には、前記吸音材を収容する吸音材収容部(例えば、上記実施形態における吸音材収容部51、52)が凹設され、
前記吸音材は、前記排気通路に露出するように前記吸音材収容部に収容される。
(14) 上記(10)~(13)に加えて、
前記カバーは、前記ケースの前記開口部を覆う第1カバー部材(例えば、上記実施形態における第1IPUカバー部材26A)と、前記第1カバー部材の一部を上方又は下方から覆う第2カバー部材(例えば、上記実施形態における第2IPUカバー部材26B)と、を備え、
前記第1カバー部材と前記第2カバー部材とにより前記排気通路が形成され、
前記第1カバー部材又は前記第2カバー部材には、前記バッテリを冷却した空気を前記排気通路に導入する排気通路導入口(例えば、上記実施形態における排気通路導入口35)が形成される。
(15) 上記(10)~(14)に加えて、
前記排気口は、車幅方向に向かって開口する。
(16) 上記(10)~(15)に加えて、
前記カバーには、前記バッテリ収容部に連通する吸気口(例えば、上記実施形態におけるIPU吸気口27)が設けられる。
(17) 上記(10)~(16)の車両用バッテリユニットを搭載した車両であって、
前記排気口は、フロアパネル(例えば、上記実施形態におけるフロアパネル3)とフロアカーペットの間に排気する。
上記実施形態では、バッテリ40に加えて、DC-DCコンバータ41、ECU42、及び冷却ファン43などの電気部品がユニット化されたIPU20を例示したが、必ずしも電気部品はバッテリ40と共にユニット化されている必要はなく、バッテリ40がケースとカバーに収容されたバッテリユニットに適用できる。
また、上記実施形態では、フロントシート1下に配置されたIPU20を例示したが、これに限らず、リアシート下に配置されてもよく、荷室又は荷室下に配置されてもよい。
また、上記実施形態では、排気通路33は、排気通路導入口35から導入された空気を分岐部36で左右に分流していたが、左右に分流せずに左右のいずれか一方のみから排出するようにしてもよい。
また、上記実施形態では、IPUカバー26が、IPUケース21の開口部23を覆う第1IPUカバー部材26Aと、第1IPUカバー部材26Aの一部を上方から覆う第2IPUカバー部材26Bと、から構成され、第1IPUカバー部材26Aに排気通路導入口35が設けられていたが、第2IPUカバー部材26Bが第1IPUカバー部材26Aの一部を下方から覆い、第2IPUカバー部材26Bに排気通路導入口35が設けられていてもよい。
フロアパネル(例えば、上記実施形態におけるフロアパネル3)に設けられたバッテリ収納部(例えば、上記実施形態におけるIPU保護ケース8)に収納され、該前部座席の下方に配設されるバッテリ(例えば、上記実施形態におけるバッテリ40)と、
前記前部座席に対し斜め後方に位置するスライドドア(例えば、上記実施形態におけるスライドドア9)と、
該スライドドアに隣接するように前記フロアパネル上に配置されるステップ(例えば、上記実施形態におけるステップ60)と、
該ステップの下方に位置し、該スライドドアのスライド移動を案内するレール(例えば、上記実施形態におけるレール18)が配置されたレール収容部(例えば、上記実施形態におけるレール収容部17)と、を備え、
前記バッテリが車室内の空気によって冷却される、車両であって、
前記バッテリを冷却した空気を排気する排気経路が、前記バッテリから左右方向に延びる第1排気経路(例えば、上記実施形態における排気通路33)と、該第1排気経路に接続されるとともに前記ステップの下方に設けられたステップ下空間(例えば、上記実施形態におけるステップ下空間S1)に接続される第2排気経路(例えば、上記実施形態における排気通路75)と、備え、
前記第2排気経路は、前記ステップ下空間を介して前記レール収容部に連通する。
(19) 上記(18)に加えて、
前記第2排気経路は、前記フロアパネルと前記フロアパネルの少なくとも一部を覆うフロアカーペット(例えば、上記実施形態におけるフロアカーペット19)とによって形成された空間である。
(20) 上記(19)に加えて、
前記フロアカーペットは、左右方向の端部にスペーサ(例えば、上記実施形態におけるスペーサ70)を一体若しくは別体に備え、
前記第2排気経路は、前記フロアパネルと前記スペーサとによって形成された空間を含む。
(21) 上記(18)~(20)に加えて、
前記バッテリは、ケース(例えば、上記実施形態におけるIPUケース21)に収容されるともに、前記ケースの開口部(例えば、上記実施形態における開口部23)を覆うカバー(例えば、上記実施形態におけるIPUカバー26)に覆われ、
前記第1排気経路は、前記カバーに一体形成された排気通路である。
(22) 上記(20)に加えて、
前記スペーサは、下方に向けて開口する断面コ字形状を有し、
前記スペーサの裏面には、前記車両の前後方向に延びる前後方向リブ(例えば、上記実施形態における前後方向リブ73)と前記車両の左右方向に延びる左右方向リブ(例えば、上記実施形態における左右方向リブ74)が格子状に設けられており、
前記第2排気経路は、前記前後方向リブの高さ(例えば、上記実施形態における高さH1)が前記左右方向リブの高さ(例えば、上記実施形態における高さH2)よりも高い領域を含む。
(23) 上記(22)に加えて、
前記ステップは、前記フロアパネルと略平行に前後方向に延びるステップ本体(例えば、上記実施形態におけるステップ本体62)と、該ステップ本体の外側端部から下方に向かって前記レール収容部の近傍まで延びるステップ側壁(例えば、上記実施形態におけるステップ側壁63)と、を備え、
前記ステップ本体の裏面(例えば、上記実施形態における裏面60a)には、前記車両の前後方向に延びる縦リブ(例えば、上記実施形態における縦リブ68)と前記車両の左右方向に延びる横リブ(例えば、上記実施形態における横リブ69)が格子状に設けられており、
前記第2排気経路は、前記横リブの高さ(例えば、上記実施形態における高さH4)が前記縦リブの高さ(例えば、上記実施形態における高さH3)よりも高い領域を介して前記レール収容部に連通する。
(24) 上記(18)~(23)に加えて、
前記ステップは、後方に前方に比べて容積が拡大されたバッファ部(例えば、上記実施形態におけるバッファ部65)を有しており、
前記第2排気経路は、前記ステップの前記バッファ部を介して前記レール収容部に連通する。
(25) 上記(18)~(24)に加えて、
前記第1排気経路の排気口から斜め後方に向かってハーネス(例えば、上記実施形態におけるハーネス53)が配置されている。
(26)前部座席(例えば、上記実施形態におけるフロントシート1)と、
フロアパネル(例えば、上記実施形態におけるフロアパネル3)に設けられたバッテリ収納部(例えば、上記実施形態におけるIPU保護ケース8)に収納され、該前部座席の下方に配設されるバッテリ(例えば、上記実施形態におけるバッテリ40)と、
前記前部座席に対し斜め後方に位置するスライドドア(例えば、上記実施形態におけるスライドドア9)と、
該スライドドアに隣接するように前記フロアパネル上に配置されるステップ(例えば、上記実施形態におけるステップ60)と、を備え、
前記バッテリが車室内の空気によって冷却される、車両であって、
前記バッテリを冷却した空気を排気する排気経路が、前記バッテリから左右方向に延びる第1排気経路(例えば、上記実施形態における排気通路33)と、該第1排気経路に接続されるとともに前記ステップの下方に設けられたステップ下空間(例えば、上記実施形態におけるステップ下空間S1)に接続される第2排気経路(例えば、上記実施形態における排気通路75)と、備え、
前記第2排気経路は、前記フロアパネルと前記フロアパネルの少なくとも一部を覆うフロアカーペット(例えば、上記実施形態におけるフロアカーペット19)とによって形成された空間である。
(27) 上記(26)に加えて、
前記フロアカーペットは、左右方向の端部にスペーサ(例えば、上記実施形態におけるスペーサ70)を一体若しくは別体に備え、
前記第2排気経路は、前記フロアパネルと前記スペーサとによって形成された空間を含む。
上記実施形態では、バッテリ40に加えて、DC-DCコンバータ41、ECU42、及び冷却ファン43などの電気部品がユニット化されたIPU20を例示したが、必ずしも電気部品はバッテリ40と共にユニット化されている必要はなく、バッテリ40がケースとカバーに収容されたバッテリユニットに適用できる。
また、上記実施形態では、フロントシート1下に配置されたIPU20を例示したが、これに限らず、リアシート下に配置されてもよく、荷室又は荷室下に配置されてもよい。
また、上記実施形態では、排気通路33は、排気通路導入口35から導入された空気を分岐部36で左右に分流していたが、左右に分流せずに左右のいずれか一方のみから排出するようにしてもよい。
また、上記実施形態では、IPUカバー26が、IPUケース21の開口部23を覆う第1IPUカバー部材26Aと、第1IPUカバー部材26Aの一部を上方から覆う第2IPUカバー部材26Bと、から構成され、第1IPUカバー部材26Aに排気通路導入口35が設けられていたが、第2IPUカバー部材26Bが第1IPUカバー部材26Aの一部を下方から覆い、第2IPUカバー部材26Bに排気通路導入口35が設けられていてもよい。
また、IPU20は排気通路一体型に限定されるものではなく、排気ダクト及び/又は、吸気ダクトがIPU20に接続されていてもよい。
また、ステップ60はバッファ部65を有していなくてもよい。
また、バッテリ40を冷却した排気流および排気温度を、ステップ下空間S1でなまし、排気を分散して緩やかに車室内に導入してもよい。
上記(2)によれば、分岐部に設けられた膨出部が、流入する排気に対向するべく膨出することで整流された後の排気をよりスムーズに分流でき、圧損を低減し、騒音を抑制できる。
上記(3)によれば、電気機器、高圧系機器及び冷却ファンをケース内にコンパクトに収納でき、ケースの前後長を縮めたコンパクトな車両への搭載が可能となる。
上記(4)によれば、カバーと別体に形成された排気ダクトをカバーに組み付ける場合に比べて、排気ダクトの車両への取り廻しが不要となり、高圧系機器ユニットの車両への搭載が容易になるとともに組付け作業性が向上する。
上記(5)によれば、簡易な構成で排気部一体型のバッテリユニットを構成できる。
上記(6)によれば、車幅方向に延びる排気通路の端部に車幅方向に向かって開口する排気口を設けることで、排気通路を屈曲させることが不要となり圧損を低減できる。
上記(7)によれば、排気ダクトのみならず吸気ダクトの車両への取り廻しも不要となり、バッテリユニットの車両への搭載がさらに容易になるとともに組付け作業性も向上する。
上記(8)によれば、車両への搭載が容易となる。
上記(9)によれば、排気ダクトを取り廻すことなくバッテリを冷却した空気を車室内に排出できる。
上記(11)によれば、排気通路が車幅方向において両側に延びるとともに、両側の端部に排気口を有するので排気を分散できる。また、分岐部に設けられた膨出部が、流入する排気に対向するべく膨出することでスムーズな分流が可能となり、圧損を低減し、騒音を抑制できる。
上記(12)によれば、排気通路内を伝播する騒音の音響エネルギーを吸収できる。
上記(13)によれば、吸音材が排気通路内へ突出するのを抑制し、排気通路内に吸音材を露出させることで、比較的幅広い周波数領域に亘って騒音を低減できる。
上記(14)によれば、簡易な構成で排気通路一体型のバッテリユニットを構成できる。
上記(15)によれば、車幅方向に延びる排気通路の端部に車幅方向に向かって開口する排気口を設けることで、排気通路を屈曲させることが不要となり圧損を低減できる。
上記(16)によれば、排気ダクトのみならず吸気ダクトの車両への取り廻しも不要となり、バッテリユニットの車両への搭載がさらに容易になるとともに組付け作業性も向上する。
上記(17)によれば、排気ダクトを取り廻すことなくバッテリを冷却した空気を車室内に排出できる。
上記(19)によれば、排気ダクトが不要となることで部品点数を削減できるとともに、排気ダクトの車両への取り廻しが不要となり、組付け作業性が向上する。
上記(20)によれば、フロアカーペットを補強するスペーサを排気流路とすることができる。また、排気ダクトが不要となることで部品点数を削減できるとともに、排気ダクトの車両への取り廻しが不要となり、組付け作業性が向上する。
上記(21)によれば、カバーと別体に形成された排気ダクトをカバーに組み付ける場合に比べて、排気ダクトの車両への取り廻しが不要となり、組付け作業性が向上する。
上記(22)によれば、格子状に設けられた前後方向リブ及び左右方向リブによりフロアカーペットを補強できる。また、前後方向リブが左右方向リブよりも高い領域によって、排気は前後方向に導かれる。従って、前後方向リブを整流板として排気をステップへ淀みなく導くことができる。
上記(23)によれば、格子状に設けられた縦リブ及び横リブによりステップを補強できる。また、横リブが縦リブよりも高いので、排気は左右方向に導かれる。従って、横リブを整流板として排気をレール収容部へ淀みなく導くことができる。
上記(24)によれば、バッファ部により圧損を低減できる。また、指向性を緩和した後に排気することで、車室内排気における乗員への不快感を抑制できる。
上記(25)によれば、ハーネスの側壁を整流壁とすることで、排気をステップに向けて導くことができる。
上記(26)によれば、排気ダクトが不要となることで部品点数を削減できるとともに、排気ダクトの車両への取り廻しが不要となり、組付け作業性が向上する。
上記(27)によれば、フロアカーペットを補強するスペーサを排気流路とすることができる。
3 フロアパネル
8 IPU保護ケース(バッテリ収納部)
9 スライドドア
17 レール収容部
18 レール
19 フロアカーペット
20 IPU(車両用高圧系機器ユニット、車両用バッテリユニット)
21 IPUケース(ケース)
22 IPU収容部(バッテリ収容部)
23 開口部
26 IPUカバー(カバー)
26A 第1IPUカバー部材(第1カバー部材)
26B 第2IPUカバー部材(第2カバー部材)
27 IPU吸気口(吸気口)
29 IPU排気口
33 排気通路(排気部、第1排気経路)
35 排気通路導入口
36 分岐部
37 膨出部
38 吸音材
39 吸音材
40 バッテリ
41 DC-DCコンバータ(高圧系機器)
41b 冷却フィン(整流部)
42 ECU(電気機器)
43 冷却ファン
44 インバータ(電気機器)
51 吸音材収容部
52 吸音材収容部
53 ハーネス
60 ステップ
60a 裏面
62 ステップ本体
65 バッファ部
68 縦リブ
69 横リブ
70 スペーサ
73 前後方向リブ
74 左右方向リブ
75 排気通路(第2排気経路)
H1 前後方向リブの高さ
H2 左右方向リブの高さ
H3 縦リブの高さ
H4 横リブの高さ
S1 ステップ下空間
Claims (27)
- 高圧系機器と、
車室内の空気を取り込む冷却ファンと、を備え、
車室内の空気によって該高圧系機器が冷却される、車両用高圧系機器ユニットであって、
前記高圧系機器の上流側に前記冷却ファンが配設されるとともに、前記高圧系機器の下流側に排気部が配設され、
該排気部には、前記高圧系機器を冷却した空気を分流させる分岐部が設けられ、
前記分岐部の上流側には、整流部が設けられ、
該整流部は、前記高圧系機器に一体に形成される、車両用高圧系機器ユニット。 - 請求項1に記載の車両用高圧系機器ユニットであって、
該分岐部には、前記高圧系機器を冷却した空気の流れ方向において上流側に膨出する膨出部が設けられる、車両用高圧系機器ユニット。 - 請求項1又は2に記載の車両用高圧系機器ユニットであって、
電気機器と、
該電気機器、前記高圧系機器、及び前記冷却ファンを収容するケースと、をさらに備え、
前記冷却ファンは、該ケースの底部に配設され、
前記電気機器は、前記冷却ファンの上方に配設され、
前記高圧系機器は、前記冷却ファンに対し車両の前後方向一方側であって、斜め上方に傾斜して配設される、車両用高圧系機器ユニット。 - 請求項3に記載の車両用高圧系機器ユニットであって、
前記ケースの開口部は、カバーに覆われており、
前記カバーには、前記高圧系機器を冷却した空気を排出する前記排気部が一体に形成され、
該排気部は、端部に排気口を有する、車両用高圧系機器ユニット。 - 請求項4に記載の車両用高圧系機器ユニットであって、
前記カバーは、前記ケースの前記開口部を覆う第1カバー部材と、前記第1カバー部材の一部を上方又は下方から覆う第2カバー部材と、を備え、
前記第1カバー部材と前記第2カバー部材とにより前記排気部が形成され、
前記第1カバー部材又は前記第2カバー部材には、前記高圧系機器を冷却した空気を前記排気部に導入する排気導入口が形成される、車両用高圧系機器ユニット。 - 請求項4又は5に記載の車両用高圧系機器ユニットであって、
前記排気部は、車幅方向に延び、
前記排気口は、車幅方向に向かって開口する、車両用高圧系機器ユニット。 - 請求項4~6のいずれか1項に記載の車両用高圧系機器ユニットであって、
前記カバーには、前記ケースの内部に連通する吸気口が設けられる、車両用高圧系機器ユニット。 - 請求項1~7のいずれか1項に記載の車両用高圧系機器ユニットを搭載した車両であって、
前記車両用高圧系機器ユニットは車両の座席下に配置される、車両。 - 請求項4~7のいずれか1項に記載の車両用高圧系機器ユニットを搭載した車両であって、
前記排気口は、フロアパネルとフロアカーペットの間に排気する、車両。 - バッテリと、
該バッテリを収容するバッテリ収容部を有するケースと、
該ケースの開口部を覆うカバーと、を備え、
車室内の空気によって該バッテリが冷却される、車両用バッテリユニットであって、
前記カバーには、前記バッテリ収容部に連通し、前記バッテリを冷却した空気を排出する排気通路が形成され、
前記排気通路は、車幅方向において少なくとも一方側に延びるとともに、該少なくとも一方側の端部に排気口を有する、車両用バッテリユニット。 - 請求項10に記載の車両用バッテリユニットであって、
前記排気通路は、車幅方向において両側に延びるとともに、両側の端部に前記排気口を有し、
前記排気通路は、前記バッテリを冷却した空気を車幅方向において両側に分流させる分岐部を備え、
該分岐部には、前記バッテリを冷却した空気の流れ方向において上流側に膨出する膨出部が設けられる、車両用バッテリユニット。 - 請求項10又は11に記載の車両用バッテリユニットであって、
前記排気通路には、内面に吸音材が配設される、車両用バッテリユニット。 - 請求項12に記載の車両用バッテリユニットであって、
前記排気通路には、前記吸音材を収容する吸音材収容部が凹設され、
前記吸音材は、前記排気通路に露出するように前記吸音材収容部に収容される、車両用バッテリユニット。 - 請求項10~13のいずれか1項に記載の車両用バッテリユニットであって、
前記カバーは、前記ケースの前記開口部を覆う第1カバー部材と、前記第1カバー部材の一部を上方又は下方から覆う第2カバー部材と、を備え、
前記第1カバー部材と前記第2カバー部材とにより前記排気通路が形成され、
前記第1カバー部材又は前記第2カバー部材には、前記バッテリを冷却した空気を前記排気通路に導入する排気通路導入口が形成される、車両用バッテリユニット。 - 請求項10~14のいずれか1項に記載の車両用バッテリユニットであって、
前記排気口は、車幅方向に向かって開口する、車両用バッテリユニット。 - 請求項10~15のいずれか1項に記載の車両用バッテリユニットであって、
前記カバーには、前記バッテリ収容部に連通する吸気口が設けられる、車両用バッテリユニット。 - 請求項10~16のいずれか1項に記載の車両用バッテリユニットを搭載した車両であって、
前記排気口は、フロアパネルとフロアカーペットの間に排気する、車両。 - 前部座席と、
フロアパネルに設けられたバッテリ収納部に収納され、該前部座席の下方に配設されるバッテリと、
前記前部座席に対し斜め後方に位置するスライドドアと、
該スライドドアに隣接するように前記フロアパネル上に配置されるステップと、
該ステップの下方に位置し、該スライドドアのスライド移動を案内するレールが配置されたレール収容部と、を備え、
前記バッテリが車室内の空気によって冷却される、車両であって、
前記バッテリを冷却した空気を排気する排気経路が、前記バッテリから左右方向に延びる第1排気経路と、該第1排気経路に接続されるとともに前記ステップの下方に設けられたステップ下空間に接続される第2排気経路と、備え、
前記第2排気経路は、前記ステップ下空間を介して前記レール収容部に連通する、車両。 - 請求項18に記載の車両であって、
前記第2排気経路は、前記フロアパネルと前記フロアパネルの少なくとも一部を覆うフロアカーペットとによって形成された空間である、車両。 - 請求項19に記載の車両であって、
前記フロアカーペットは、左右方向の端部にスペーサを一体若しくは別体に備え、
前記第2排気経路は、前記フロアパネルと前記スペーサとによって形成された空間を含む、車両。 - 請求項18~20のいずれか1項に記載の車両であって、
前記バッテリは、ケースに収容されるともに、前記ケースの開口部を覆うカバーに覆われ、
前記第1排気経路は、前記カバーに一体形成された排気通路である、車両。 - 請求項20に記載の車両であって、
前記スペーサは、下方に向けて開口する断面コ字形状を有し、
前記スペーサの裏面には、前記車両の前後方向に延びる前後方向リブと前記車両の左右方向に延びる左右方向リブが格子状に設けられており、
前記第2排気経路は、前記前後方向リブの高さが前記左右方向リブの高さよりも高い領域を含む、車両。 - 請求項22に記載の車両であって、
前記ステップは、前記フロアパネルと略平行に前後方向に延びるステップ本体と、該ステップ本体の外側端部から下方に向かって前記レール収容部の近傍まで延びるステップ側壁と、を備え、
前記ステップ本体の裏面には、前記車両の前後方向に延びる縦リブと前記車両の左右方向に延びる横リブが格子状に設けられており、
前記第2排気経路は、前記横リブの高さが前記縦リブの高さよりも高い領域を介して前記レール収容部に連通する、車両。 - 請求項18~23のいずれか1項に記載の車両であって、
前記ステップは、後方に前方に比べて容積が拡大されたバッファ部を有しており、
前記第2排気経路は、前記ステップの前記バッファ部を介して前記レール収容部に連通する、車両。 - 請求項18~24のいずれか1項に記載の車両であって、
前記第1排気経路の排気口から斜め後方に向かってハーネスが配置されている、車両。 - 前部座席と、
フロアパネルに設けられたバッテリ収納部に収納され、該前部座席の下方に配設されるバッテリと、
前記前部座席に対し斜め後方に位置するスライドドアと、
該スライドドアに隣接するように前記フロアパネル上に配置されるステップと、を備え、
前記バッテリが車室内の空気によって冷却される、車両であって、
前記バッテリを冷却した空気を排気する排気経路が、前記バッテリから左右方向に延びる第1排気経路と、該第1排気経路に接続されるとともに前記ステップの下方に設けられたステップ下空間に接続される第2排気経路と、備え、
前記第2排気経路は、前記フロアパネルと前記フロアパネルの少なくとも一部を覆うフロアカーペットとによって形成された空間である、車両。 - 請求項26に記載の車両であって、
前記フロアカーペットは、左右方向の端部にスペーサを一体若しくは別体に備え、
前記第2排気経路は、前記フロアパネルと前記スペーサとによって形成された空間を含む、車両。
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