WO2023181240A1 - 駆動用電池パックの排気構造 - Google Patents

駆動用電池パックの排気構造 Download PDF

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Publication number
WO2023181240A1
WO2023181240A1 PCT/JP2022/013881 JP2022013881W WO2023181240A1 WO 2023181240 A1 WO2023181240 A1 WO 2023181240A1 JP 2022013881 W JP2022013881 W JP 2022013881W WO 2023181240 A1 WO2023181240 A1 WO 2023181240A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery pack
side end
duct
dash panel
vehicle
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/JP2022/013881
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
正喜 權田
直樹 木田
拓也 山本
慎 堀内
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.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors Corp
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 Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP2024509563A priority Critical patent/JP7677533B2/ja
Priority to PCT/JP2022/013881 priority patent/WO2023181240A1/ja
Publication of WO2023181240A1 publication Critical patent/WO2023181240A1/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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/06—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
    • 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 disclosure relates to an exhaust structure for a driving battery pack.
  • Patent Document 1 discloses an air-cooled battery unit mounted under a floor panel.
  • Several functional parts of the air-cooled battery unit are provided on the upper surface of the housing of the air-cooled battery unit so as to protrude upward.
  • the functional parts are, for example, an intake duct, a fan, and an exhaust duct, and the fan is provided such that the case protrudes from the upper surface of the housing.
  • the exhaust duct extends forward from the front of the fan case on the right side of the vehicle and has an opening facing forward.
  • the exhaust duct is provided so that the end of the opening faces the back surface of the cross member near the center in the longitudinal direction of the vehicle.
  • the exhaust duct directs the exhaust air from the front of the fan case that points toward the front of the vehicle, bends it upwards from that height into a crank shape to change the flow direction, and directs the exhaust to the back of the cross member near the center of the vehicle in the longitudinal direction. It is discharged from the openings provided so as to face each other.
  • the exhaust structure of a drive battery pack includes a drive battery pack installed on a floor panel of a vehicle, and exhausts air from inside the drive battery pack to the outside. and a duct connected to a discharge port of the blower fan and extending to a position facing a dash panel that partitions a storage chamber that houses a drive source that drives the vehicle and a vehicle interior.
  • the air that has cooled the inside of the drive battery pack passes through the duct and is discharged closer to the dash panel than the feet of the occupants seated in the first row of seats. It is possible to suppress discomfort around the feet of a seated occupant.
  • the duct is provided on the interior side of the floor panel, and is formed of a convex backbone extending from the center in the vehicle width direction along the longitudinal direction of the vehicle. installed directly above.
  • the upper surface of the backbone which is the front of the dash panel side end of the duct in the vehicle longitudinal direction, is gradually raised from the rear to the front of the vehicle longitudinal direction. It has an inclined surface.
  • the air discharged from the dashboard side end of the duct is guided upward along the slope, so the temperature inside the console installed behind the dashboard in the longitudinal direction of the vehicle increases. increase can be suppressed.
  • the dash panel side end of the duct is arranged above and in front of the in-vehicle device installed on the top surface of the backbone.
  • the in-vehicle device can be protected from heat damage caused by the air flowing through the duct.
  • an insulator is provided between the dash panel side end of the duct and the upper surface of the backbone.
  • the dash panel side end of the duct is provided below the blower fan side end of the duct. .
  • the duct in the configuration of any one of (1) to (6) above, is arranged between the dash panel side end and the blower fan side end. It has a first bent portion bent upward from the end toward the blower fan side end.
  • the duct is located between the dash panel side end and the blower fan side end and closer to the dash panel side end than the first bent part.
  • a second bent part and a third bent part are formed to be bent upwardly and downwardly from the dash panel side end toward the blower fan side end;
  • the dash panel side end of the duct is connected to an air conditioner provided above the dash panel side end.
  • the exhaust opening is located forward in the longitudinal direction of the vehicle from the intake opening that opens into the passenger compartment of the vehicle.
  • an intake port is provided on the top surface of the driving battery pack to intake air from inside the vehicle.
  • the blower fan is disposed above the driving battery pack.
  • FIG. 2 is a perspective view showing the peripheral structure of the driving battery pack according to the embodiment.
  • FIG. 2 is a side view showing a peripheral structure of the driving battery pack shown in FIG. 1.
  • FIG. 3 is a perspective view showing the blower fan and duct shown in FIG. 2.
  • FIG. 4 is a side view of the blower fan and duct shown in FIG. 3.
  • FIG. 1 is a perspective view showing the peripheral structure of the driving battery pack according to the embodiment.
  • FIG. 2 is a side view showing a peripheral structure of the driving battery pack shown in FIG. 1.
  • FIG. 3 is a perspective view showing the blower fan and duct shown in FIG. 2.
  • FIG. 4 is a side view of the blower fan and duct shown in FIG. 3.
  • FIG. 1 is a perspective view showing the exhaust structure of the driving battery pack 10 according to the embodiment
  • FIG. 2 is a side view showing the exhaust structure of the driving battery pack 10 shown in FIG. 1.
  • the driving battery pack 10 is a high-voltage, high-output power source that is installed in an electric vehicle such as an electric vehicle, a hybrid vehicle, or a plug-in hybrid vehicle, and supplies electricity to an electric motor installed in the electric vehicle.
  • the driving battery pack 10 is provided with a DC/DC converter (not shown) in addition to a plurality of (many) battery cells (not shown), and by supplying electricity from the driving battery pack 10 to the electric motor, a plurality of The battery cells and the DCDC converter are heated, and the driving battery pack 10 needs to be cooled.
  • the driving battery pack 10 is installed on the floor panel 12.
  • a backbone 14 is provided on the upper surface of the floor panel 12.
  • the backbone 14 is provided on the interior side of the floor panel 12, and extends in the center of the vehicle width direction along the longitudinal direction of the vehicle.
  • the backbone 14 is provided with an inclined surface 16 on the upper surface on the front side in the vehicle longitudinal direction, which gradually becomes higher from the rear toward the front in the vehicle longitudinal direction.
  • An on-vehicle device 18 is installed on the upper surface of the backbone 14, which is midway in the longitudinal direction of the vehicle.
  • the in-vehicle device 18 is a control device for deploying an airbag.
  • the floor panel 12 is provided with a pair of cross members 20 and 22 on its upper surface.
  • the pair of cross members 20 and 22 are provided along the vehicle width direction so as to cross the backbone 14.
  • the driving battery pack 10 is installed between the pair of cross members 20 and 22 along the vehicle width direction.
  • a first row seat (not shown) is installed above this driving battery pack 10.
  • Openings 24 and 26 are provided on the top surface of the driving battery pack 10.
  • the intake ports 24 and 26 are openings that communicate from the outside to the inside of the drive battery pack 10, and are provided one each on both sides in the vehicle width direction. Although the intake ports 24 and 26 are provided along the longitudinal direction of the vehicle, they are not limited thereto.
  • a blower fan 28 is installed above the driving battery pack 10.
  • the blower fan 28 is for discharging air from the inside of the drive battery pack 10 to the outside, and is installed at an exhaust port (not shown) provided at the center of the drive battery pack 10 in the vehicle width direction. .
  • a duct 32 is connected to the discharge port 30 of the blower fan 28.
  • the duct 32 is a passage for air discharged from the inside of the driving battery pack 10 to the outside, and is installed directly above the backbone 14.
  • the duct 32 extends to the front of the above-mentioned inclined surface 16, and faces a dash panel 34 that partitions a storage room that houses a drive source that drives the vehicle from a vehicle interior.
  • the drive source is an engine and the storage room is an engine room, but the invention is not limited to this.
  • the dash panel side end 36 of the duct 32 has a discharge opening 42 located forward in the longitudinal direction of the vehicle from an intake port 40 that opens into the vehicle interior of the air conditioner 38 provided above the dash panel side end 36.
  • the exhaust port 41 of the air conditioner 38 that opens into the vehicle interior is located above the dash panel side end 36 of the duct 32 and rearward of the dash panel side end 36 in the longitudinal direction of the vehicle.
  • the dash panel side end 36 of the duct 32 is arranged above and in front of the above-mentioned in-vehicle device 18, and an insulator 44 is provided between the dash panel side end 36 of the duct 32 and the backbone 14.
  • the insulator 44 is a sound insulating material, and is made of felt, for example.
  • FIG. 3 is a perspective view of the blower fan 28 and duct 32 shown in FIG. 2
  • FIG. 4 is a side view of the blower fan 28 and duct 32 shown in FIG.
  • the dash panel side end 36 of the duct 32 is provided below the blower fan 28 side end of the duct 32.
  • the duct 32 also has a first bent portion formed between the dash panel side end 36 and the blower fan side end 46 and bent upward from the dash panel side end 36 toward the blower fan side end 46. It has 48.
  • the duct 32 is arranged between the dash panel side end 36 and the blower fan side end 46 and from the first bent part 48 to the dash panel side end 36 side, and from the dash panel side end 36 to the blower fan side end 46 . It has a second bent part 50 and a third bent part 52 which are bent upward and downward toward 46 in this order.
  • the duct 32 extends to a position facing the dash panel 34, so that air that has cooled the inside of the driving battery pack 10 passes through the duct 32 and the driver is seated on the first row seat. It is discharged closer to the dash panel than the passenger's feet. As a result, it is possible to suppress discomfort around the feet of the upper passengers seated in the first row of seats.
  • the duct 32 extends to the front of the inclined surface 16 provided on the upper surface of the backbone 14, the air discharged from the dashboard side end of the duct 32 is guided upward along the inclined surface 16. Therefore, it is possible to suppress a temperature rise in the console (not shown) installed at the rear of the dashboard in the longitudinal direction of the vehicle.
  • the dash panel side end 36 of the duct 32 has a discharge port in front of the air intake port 40 of the air conditioner 38 in the longitudinal direction of the vehicle, the dash panel side end 36 of the duct 32 (discharge opening 42) It is possible to prevent the discharged air from being sucked in as it is from the intake port 40 of the air conditioner 38, and to prevent a decrease in air conditioning efficiency.
  • the dash panel side end portion 36 of the duct 32 is arranged above and in front of the in-vehicle device 18 installed on the upper surface of the backbone 14, the in-vehicle device 18 is protected from heat damage caused by the air flowing through the duct 32. I can do it.
  • the insulator 44 is provided between the dash panel side end 36 of the duct 32 and the backbone 14, it is possible to suppress vibrations of the duct 32 when the vehicle is running, and Noise can also be suppressed.
  • the dash panel side end 36 of the duct 32 is provided below the blower fan side end 46 of the duct 32, the dash panel side end 36 of the duct 32 is exposed to water when water enters the vehicle interior. Even if the battery pack 10 is submerged, water can be prevented from flowing into the drive battery pack 10.
  • the duct 32 has a first bent portion 48 between the dash panel side end 36 and the blower fan side end 46, water intrusion into the vehicle interior may cause the dash panel side end 36 of the duct 32 to Even if the battery pack 10 is immersed in water, it is possible to more effectively prevent water from flowing into the driving battery pack 10.
  • the duct 32 has the second bent part 50 and the third bent part 52 on the side of the dash panel side end 36 from the first bent part 48, water intrusion into the vehicle interior may cause the duct 32 to move toward the dash panel side. Even if the end portion 36 is submerged in water, it is possible to more effectively prevent water from flowing into the driving battery pack 10.
  • the intake ports 24 and 26 are arranged on the upper surface of the drive battery pack 10, it is possible to suppress water from entering the drive battery pack during flooding.
  • blower fan 28 Since the blower fan 28 is placed above the driving battery pack 10, it is possible to suppress water from entering the blower fan 28 during flooding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
PCT/JP2022/013881 2022-03-24 2022-03-24 駆動用電池パックの排気構造 Ceased WO2023181240A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2024509563A JP7677533B2 (ja) 2022-03-24 2022-03-24 駆動用電池パックの排気構造
PCT/JP2022/013881 WO2023181240A1 (ja) 2022-03-24 2022-03-24 駆動用電池パックの排気構造

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/013881 WO2023181240A1 (ja) 2022-03-24 2022-03-24 駆動用電池パックの排気構造

Publications (1)

Publication Number Publication Date
WO2023181240A1 true WO2023181240A1 (ja) 2023-09-28

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PCT/JP2022/013881 Ceased WO2023181240A1 (ja) 2022-03-24 2022-03-24 駆動用電池パックの排気構造

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JP (1) JP7677533B2 (https=)
WO (1) WO2023181240A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025220167A1 (ja) * 2024-04-17 2025-10-23 日産自動車株式会社 車両下部構造

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008114706A (ja) * 2006-11-02 2008-05-22 Toyota Motor Corp 蓄電装置および自動車
JP2014226972A (ja) * 2013-05-20 2014-12-08 三菱自動車工業株式会社 自動車の車体構造
JP2016084025A (ja) * 2014-10-27 2016-05-19 本田技研工業株式会社 車両
JP2017050237A (ja) * 2015-09-04 2017-03-09 スズキ株式会社 車両用バッテリパックの冷却構造
JP2018030450A (ja) * 2016-08-24 2018-03-01 本田技研工業株式会社 電力機器ユニット
JP2020185904A (ja) * 2019-05-15 2020-11-19 マツダ株式会社 電動車両の下部車体構造

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008114706A (ja) * 2006-11-02 2008-05-22 Toyota Motor Corp 蓄電装置および自動車
JP2014226972A (ja) * 2013-05-20 2014-12-08 三菱自動車工業株式会社 自動車の車体構造
JP2016084025A (ja) * 2014-10-27 2016-05-19 本田技研工業株式会社 車両
JP2017050237A (ja) * 2015-09-04 2017-03-09 スズキ株式会社 車両用バッテリパックの冷却構造
JP2018030450A (ja) * 2016-08-24 2018-03-01 本田技研工業株式会社 電力機器ユニット
JP2020185904A (ja) * 2019-05-15 2020-11-19 マツダ株式会社 電動車両の下部車体構造

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025220167A1 (ja) * 2024-04-17 2025-10-23 日産自動車株式会社 車両下部構造

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JP7677533B2 (ja) 2025-05-15

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