WO2021240803A1 - バッテリー冷却風の排出構造 - Google Patents

バッテリー冷却風の排出構造 Download PDF

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Publication number
WO2021240803A1
WO2021240803A1 PCT/JP2020/021403 JP2020021403W WO2021240803A1 WO 2021240803 A1 WO2021240803 A1 WO 2021240803A1 JP 2020021403 W JP2020021403 W JP 2020021403W WO 2021240803 A1 WO2021240803 A1 WO 2021240803A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
floor
recess
floor panel
cooling air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/021403
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
道友 村田
誠 大上
淳一 塙
昌也 近藤
遥 外村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to PCT/JP2020/021403 priority Critical patent/WO2021240803A1/ja
Priority to US17/999,938 priority patent/US12358360B2/en
Priority to EP20938009.6A priority patent/EP4159513B1/en
Priority to CN202080101536.6A priority patent/CN115697746B/zh
Priority to JP2022527460A priority patent/JP7448001B2/ja
Publication of WO2021240803A1 publication Critical patent/WO2021240803A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
    • 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
    • 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
    • H01M10/65—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0422—Arrangement under the front seats
    • 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
    • B60K2001/0427—Arrangement between the seats
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a battery cooling air discharge structure.
  • the present inventors have focused on the fact that when the cooling air volume required for the battery increases, the wind noise becomes louder, and it may be difficult to suppress the noise due to the increase in the wind noise, and the present inventors are diligently studying it.
  • At least one embodiment of the present invention has been made in view of the above circumstances, and has a battery cooling air discharge structure capable of suppressing noise even when the cooling air volume required for the battery is relatively high.
  • the purpose is to provide.
  • the battery cooling air discharge structure includes a floor panel, a floor, a seat, and an exhaust duct.
  • the floor panel constitutes the lower part of the car body, and the battery can be placed.
  • the floor is arranged above the floor panel so that the battery can be placed between the floor and the floor panel.
  • the seats are installed in multiple rows on the floor.
  • the exhaust duct exhausts the air that has cooled the battery.
  • the exhaust duct has an exhaust port arranged between the seating portion of the rear seats constituting the seat and the floor.
  • FIG. 1 It is a perspective view which shows typically the inside of the vehicle by cutting out a part of the outer wall of the vehicle body in the vehicle provided with the exhaust structure of the battery cooling air which concerns on one Embodiment of this invention.
  • FIG. 2 It is a side view of FIG. It is a plan view of FIG.
  • FIG. It is a perspective view which shows the rear seat and the floor of a vehicle.
  • FIG. 2 It is a perspective view which shows the intake duct, the battery, the fan, the exhaust duct, the rear seat and the like which make up the exhaust structure of the battery cooling air.
  • the direction is indicated by using the arrows (coordinate system) represented by X, Y, and Z. That is, the "Z direction” is a direction along the vertical direction, the "X direction” is one direction orthogonal to the Z direction and parallel to the horizontal plane, and the "Y direction” is orthogonal to the Z direction and parallel to the horizontal plane. Another direction (direction orthogonal to the X direction).
  • the direction of the arrow represented by X represents the front-rear direction of the vehicle 100, and the plus represents the rear to the front.
  • Y represents the width direction in the vehicle 100, and plus represents the right direction.
  • Z represents the height direction in the vehicle 100, and plus represents the upward direction.
  • the vehicle 100 having a battery-cooled air discharge structure is, for example, a hybrid vehicle (HEV) in which an internal combustion engine and a battery-powered motor are combined as a traveling drive source, and an electric vehicle (EV) traveling by a battery-powered motor.
  • HEV hybrid vehicle
  • the vehicle 100 includes a vehicle body B, a seat 10, a floor composed of a floor panel top surface portion 40 and a floor panel bottom surface portion fp, a battery 50, an intake duct 60, and a communication duct 70. And an exhaust fan 80 and an exhaust duct 90. The details will be described below.
  • the vehicle body B constitutes a skeleton that partitions the vehicle interior in which passengers and luggage are placed from the outside in the vehicle 100.
  • the vehicle body B of the vehicle 100 is configured as a compact car such as a hatchback type in the present embodiment, but is the same as the seat 10, the floor (floor panel top surface portion 40 and floor panel bottom surface portion fp), and the exhaust duct 90, which will be described later.
  • the vehicle type shape and structure of the vehicle body B) is not particularly limited as long as the structure is provided.
  • a floor panel bottom surface portion fp on which the battery 50, which will be described later, can be arranged is provided at the lower part of the vehicle 100 as shown in FIG.
  • the seats 10 are configured to be installed in a plurality of rows on the floor panel top surface portion 40 of the vehicle 100. As shown in FIG. 1, the seat 10 includes a front seat 20 corresponding to a seat in the first row and a rear seat 30 corresponding to a seat in the second row when viewed from the front side in the present embodiment.
  • the front seat 20 is installed so as to be movable at least in the front-rear direction X with respect to the floor panel top surface portion 40. As shown in FIG. 1, the front seat 20 has a backrest 21 capable of leaning the back of the occupant, a seating portion 22 capable of seating the buttocks of the occupant, and the head of the occupant. It comprises a possible headrest 23. In the front seat 20, the driver's seat and the passenger seat are provided independently in the present embodiment.
  • a luggage space L (also referred to as a luggage room or luggage compartment) connected to the passenger compartment is provided behind the rear seat 30.
  • the rear seat 30 includes a backrest 31, a seating portion 32, and a headrest 33, as shown in FIGS. 4, 5 and the like.
  • the rear seat 30 is configured like a so-called bench seat in which the left and right seats are connected. Therefore, the backrest 31 and the seating portion 32 are configured so that the backs and buttocks of a plurality of occupants can be placed on the rear seats 30.
  • the seating portion 32 includes a notched portion 34 having a notched lower surface in the height direction Z as shown in FIGS. 4, 5 and the like.
  • the cutout portion 34 has a concave shape as shown in FIGS. 6, 7, and the like. As shown in FIG. 6, the concave shape of the notch portion 34 is configured to face downward in the height direction Z. As shown in FIG. 7, the cutout portion 34 includes a first concave portion 35, an enlarged portion 36, a second concave portion 37, a third concave portion 38, and a convex portion 39.
  • the first recess 35 is configured so that the exhaust port 94 of the exhaust duct 90 can be arranged adjacently. As shown in FIG. 7, the first recess 35 is provided on the front side of the seating portion 32 in the front-rear direction X. As shown in FIGS. 5 and 7, the first recess 35 is configured to penetrate to the front end portion f of the seating portion 32 in the present embodiment. However, if the exhaust duct 90 described later can be arranged below the seating portion 32 in the height direction Z, the first recess 35 does not necessarily have to penetrate to the front end portion f of the seating portion 32.
  • the enlarged portion 36 is provided so as to be connected to the first recess 35 behind the first recess 35 in the front-rear direction X.
  • the enlarged portion 36 is configured so that the cross-sectional shape of the notch from the first recess 35 expands in the front-rear direction X.
  • the enlarged portion 36 is configured such that the shape of the notch on the lower surface of the seating portion 32 is communicated from the first recess 35 and is communicated to the second recess 37 and the third recess 38 toward the rear in the front-rear direction X.
  • the second recess 37 and the third recess 38 are provided in communication with each other from the enlarged portion 36. As shown in FIG. 7, the second recess 37 and the third recess 38 are configured to extend substantially linearly to the rear end portion r of the seating portion 32 in the front-rear direction X of the vehicle 100. It is preferable that the second recess 37 and the third recess 38 have the same cross-sectional shape. However, if the shapes are not extremely different, there will be slight differences in the cross-sectional shape (for example, if one is a perfect circle and the other is an ellipse, or if the cross-section is rectangular, the aspect ratio (aspect ratio) of the rectangular cross-section will be different, etc.). There may be.
  • the convex portion 39 branches the notch connected to the enlarged portion 36 into the second concave portion 37 and the third concave portion 38.
  • the convex portion 39 is arranged between the second concave portion 37 and the third concave portion 38 in the width direction Y in the present embodiment.
  • the air discharged from the exhaust port 94 of the exhaust duct 90 flows along the first recess 35 and the enlarged portion 36, and flows to the second recess 37 and the third recess 38 corresponding to the branch flow path. , From there it can be distributed to the luggage space L.
  • the convex portion 39 can be arranged so as to be located on the back side of the occupant's buttocks (hip point) in the rear seat 30.
  • the convex portion 39 can also be referred to as a pad from the viewpoint of being able to support the vicinity of the buttocks of the occupant.
  • the floor panel top surface portion 40 is arranged above the floor panel bottom surface portion fp in the height direction Z.
  • the floor panel top surface portion 40 is configured so that the battery 50 can be arranged between the floor panel bottom surface portion fp and the floor panel bottom surface portion fp.
  • the floor panel top surface portion 40 constitutes the lower portion of the vehicle interior of the vehicle 100.
  • a carpet, a floor mat, or the like can be installed on the floor panel top surface portion 40.
  • the floor panel top surface portion 40 includes a horizontal portion 41, a raised portion 42, and rising portions 43 and 44.
  • the horizontal portion 41 is a portion in the passenger compartment on which the feet of the occupant can be placed, and the above-mentioned carpet or the like can be installed.
  • the raised portion 42 is provided in the horizontal portion 41 near the substantially center (intermediate portion) in the width direction Y.
  • the raised portion 42 is formed higher in the height direction Z than the horizontal portion 41 in order to arrange the exhaust fan 80 and the like of the battery 50 described later below.
  • the rising portions 43 and 44 are located behind the horizontal portion 41 and the raised portion 42 in the front-rear direction X, and are located near the lower part of the seating portion 32 of the rear seat 30.
  • the rising portions 43 and 44 are formed so that the height in the height direction Z from the horizontal portion 41 gradually rises toward the rear in the front-rear direction X.
  • the rising portion 44 is arranged so that the exhaust duct 90 is not exposed to the passenger compartment (cabin).
  • the rising portion 44 is formed so as to bulge below the seating portion 32 in the height direction Z with respect to the rising portion 43 (see FIG. 4).
  • FIG. 5 corresponding to the configuration described below corresponds to a diagram in which the floor panel top surface portion 40 is not displayed with respect to FIG.
  • the battery 50 is a power storage device that supplies electric power to a motor (not shown), and is charged by recovering the driving force and regenerative energy of the engine. As shown in FIG. 2, the battery 50 is configured to be arranged near the lower part of the front seat 20 in the seat 10 in the present embodiment.
  • the intake duct 60 is configured as a portion for sucking a gas such as air used for cooling the battery 50.
  • the intake duct 60 is configured to be arranged near the lower part of the front seat 20 in the seat 10 and outside the battery 50 in the width direction Y.
  • the opening of the intake duct 60 can be arranged on substantially the same surface (at the same height) as the horizontal portion 41 of the floor panel top surface portion 40.
  • the communication duct 70 is configured as a duct that flows in from the intake duct 60 and takes in gas such as air that has passed through the battery 50.
  • the communication duct 70 is arranged between the battery 50 and the exhaust fan 80 in the front-rear direction X in the present embodiment.
  • the communication duct 70 can be arranged substantially in the center in the width direction Y as an example.
  • the communication duct 70 can be arranged so as to extend rearward in the front-rear direction X from the connection portion with the battery 50.
  • the exhaust fan 80 generates a wind that cools the battery 50.
  • the exhaust fan 80 can be configured by a sirocco type centrifugal fan or the like in the present embodiment.
  • the suction port of the exhaust fan 80 can be connected to the communication duct 70.
  • the exhaust duct 90 is configured to be able to exhaust the air cooled by the battery 50.
  • the exhaust duct 90 is arranged between the seating portion 32 of the rear seat 30 constituting the seat 10 and the floor panel bottom surface portion fp.
  • the exhaust duct 90 is a duct member arranged under the floor panel top surface portion 40, and one end thereof is connected to the exhaust port of the exhaust fan 80. The other end of the exhaust duct is arranged adjacent to the lower surface of the rear seat 30.
  • the exhaust duct 90 includes a floor vicinity portion 91, a rising portion 92, a seat vicinity portion 93, and an exhaust port 94.
  • the floor vicinity portion 91 is a portion connected to the exhaust port of the exhaust fan 80, and is arranged so as to be adjacent to the floor panel top surface portion 40.
  • the floor vicinity portion 91 has a hollow shape extending substantially linearly along the front-rear direction X of the vehicle 100.
  • the floor vicinity portion 91 is configured so that a substantially rectangular cross section with rounded corners extends linearly in the front-rear direction X.
  • the rising portion 92 has a shape that connects the floor vicinity portion 91 and the seat vicinity portion 93.
  • the rising portion 92 is configured to extend along the height direction Z.
  • the rising 92 portions are configured to extend linearly not only in the height direction Z but also in the front-rear direction X and the width direction Y.
  • the specific shape of the rising portion 92 is not limited to this, and may be a shape extending linearly only in the height direction Z, for example, in addition to the above.
  • the seat vicinity portion 93 has a height different from that of the floor vicinity portion 91 in the height direction Z, and specifically, is configured to be arranged at a position higher than the seat vicinity portion 93. With this configuration, the seat vicinity portion 93 is arranged closer to the lower surface of the seating portion 32 of the rear seat 30 than the floor vicinity portion 91.
  • the exhaust port 94 is configured to be arranged between the seating portion 32 of the rear seat 30 constituting the seat 10 and the horizontal portion 41 of the floor panel top surface portion 40.
  • the exhaust port 94 is configured as an opening at the end of the seat vicinity portion 93.
  • the exhaust port 94 is configured to be arranged adjacent to the notch portion 34 of the seating portion 32 of the rear seat 30.
  • the exhaust port 94 is located in front of the rear end portion r of the seating portion 32 in the front-rear direction X of the vehicle 100.
  • the exhaust port 94 is configured to be located in front of the enlarged portion 36 in the front-rear direction X of the vehicle (see FIG. 7).
  • the battery cooling air discharge structure has a floor panel bottom surface portion fp, a floor panel top surface portion 40, a sheet 10, and an exhaust duct 90.
  • the floor panel bottom surface fp constitutes the lower part of the vehicle body B of the automobile (vehicle 100), and the battery 50 can be arranged.
  • the floor panel top surface portion 40 is arranged above the floor panel bottom surface portion fp, and the battery 50 can be arranged between the floor panel bottom surface portion fp and the floor panel bottom surface portion fp.
  • the seats 10 are configured to be installed in a plurality of rows on the floor panel top surface portion 40 like the front seat 20 and the rear seat 30.
  • the exhaust duct 90 is configured to exhaust the air cooled by the battery 50.
  • the exhaust duct 90 has an exhaust port 94 arranged between the seating portion 32 of the rear seat 30 constituting the seat 10 and the floor panel top surface portion 40.
  • the cooling air that has passed through the battery 50 and is discharged from the exhaust port 94 of the exhaust duct 90 passes between the seating portion 32 of the rear seat 30 and the floor panel top surface portion 40 and is distributed to the luggage space L. do.
  • the cooling air flows to the back side of the seating portion 32 of the rear seat 30 for the occupant, so that the cooling air discharged from the exhaust port 94 at the end of the exhaust duct 90 is discharged to the floor panel top surface portion 40 and the rear portion.
  • the sound of the cooling air can be absorbed by the seating portion 32 of the rear seat 30, and the wind speed flowing from the seating portion 32 to the luggage space L can be reduced. It becomes difficult to reach the occupants' ears. Therefore, it is possible to suppress the noise heard by the occupants due to the cooling air from the exhaust duct 90.
  • the seating portion 32 of the rear seat 30 is provided with a notched portion 34 having a notched lower surface.
  • the exhaust duct 90 is configured so that at least the vicinity of the exhaust port 94 is arranged adjacent to the notch portion 34 of the seating portion 32. With this configuration, the exhaust duct 90 is deformed by receiving an external force or an impact force in the vicinity of the exhaust port 94 of the exhaust duct 90 when the occupant gets on the vehicle 100 or when the vehicle 100 is accelerated or decelerated. Can be prevented or suppressed.
  • the seating portion 32 of the rear seat 30 includes a notch portion 34 whose lower surface is notched in a concave shape.
  • the cutout portion 34 includes a first concave portion 35, an enlarged portion 36, a second concave portion 37, a third concave portion 38, and a convex portion 39.
  • the first recess 35 is configured so that the exhaust port 94 of the exhaust duct 90 can be arranged adjacently.
  • the enlarged portion 36 is provided in succession from the first concave portion 35, and is configured so that the cross section of the notch from the first concave portion 35 is enlarged.
  • the second recess 37 and the third recess 38 are provided so as to be connected to the enlarged portion 36.
  • the convex portion 39 is configured so that the notch connected to the enlarged portion 36 is branched into the second concave portion 37 and the third concave portion 38.
  • the second recess 37 and the third recess 38 constituting the notch portion 34 are configured to extend to the rear end portion r of the seating portion 32 in the front-rear direction X of the vehicle 100. Therefore, the cooling air discharged from the exhaust duct 90 can be guided to the luggage space L or its vicinity by the cutout portion 34 of the seating portion 32.
  • the exhaust port 94 of the exhaust duct 90 is configured to be located in front of the rear end portion r of the seating portion 32 in the front-rear direction X of the vehicle 100.
  • the exhaust duct 90 includes a floor vicinity portion 91 that is adjacent to the horizontal portion 41 of the floor panel top surface portion 40 and extends along the front-rear direction X of the vehicle 100.
  • the shape of the exhaust duct 90 can be simplified, the cost of the exhaust duct can be reduced, and the price of the vehicle body can be reduced.
  • each of the floor vicinity portion 91, the rising portion 92, and the seat vicinity portion 93 of the exhaust duct 90 has a shape in which a substantially elliptical cross section extends linearly, but the present invention is not limited to this. In these configurations, other than the above, if a flow path is appropriately formed, other shapes such as a bent portion may be provided in the middle of each portion.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
PCT/JP2020/021403 2020-05-29 2020-05-29 バッテリー冷却風の排出構造 Ceased WO2021240803A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/JP2020/021403 WO2021240803A1 (ja) 2020-05-29 2020-05-29 バッテリー冷却風の排出構造
US17/999,938 US12358360B2 (en) 2020-05-29 2020-05-29 Battery cooling air discharge structure
EP20938009.6A EP4159513B1 (en) 2020-05-29 2020-05-29 Structure for discharging battery-cooling air
CN202080101536.6A CN115697746B (zh) 2020-05-29 2020-05-29 电池冷却风的排出构造
JP2022527460A JP7448001B2 (ja) 2020-05-29 2020-05-29 バッテリー冷却風の排出構造

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/021403 WO2021240803A1 (ja) 2020-05-29 2020-05-29 バッテリー冷却風の排出構造

Publications (1)

Publication Number Publication Date
WO2021240803A1 true WO2021240803A1 (ja) 2021-12-02

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ID=78723279

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