WO2011099549A1 - 車両用バッテリーユニットの冷却構造 - Google Patents

車両用バッテリーユニットの冷却構造 Download PDF

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Publication number
WO2011099549A1
WO2011099549A1 PCT/JP2011/052842 JP2011052842W WO2011099549A1 WO 2011099549 A1 WO2011099549 A1 WO 2011099549A1 JP 2011052842 W JP2011052842 W JP 2011052842W WO 2011099549 A1 WO2011099549 A1 WO 2011099549A1
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WO
WIPO (PCT)
Prior art keywords
intake
battery unit
air
vehicle
window
Prior art date
Application number
PCT/JP2011/052842
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
裕之 小澤
長沼　充浩
仁志 高津
貴弘 佐藤
Original Assignee
本田技研工業株式会社
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 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to JP2011553881A priority Critical patent/JP5557856B2/ja
Priority to CN201180007287.5A priority patent/CN102725164B/zh
Priority to DE201111100500 priority patent/DE112011100500T5/de
Publication of WO2011099549A1 publication Critical patent/WO2011099549A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • 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
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/003—Component temperature regulation using an air flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail 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
    • H01M10/66—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to a cooling structure for a vehicle battery unit effective for taking in cooling air for cooling a battery unit applied to a vehicle such as an electric vehicle or a hybrid vehicle.
  • a battery unit which is a drive energy source for an electric motor, is mounted on the rear seat back of the rear seat, in the luggage space, or below the floor. Since the battery unit is a heat generating component that generates heat when charging and discharging are performed, cooling is required to maintain battery performance. It is desirable to cool the battery unit by efficiently cooling the captured cooling air by sending it with a small ventilation resistance. Conventionally, the air in the vehicle compartment has been introduced from the air inlet provided near the battery unit near the rear seat. Is taken in by a cooling fan, and the air is supplied to the battery as cooling air.
  • an intake duct 102 that takes in cooling air to the battery 100 via a fan 101 is used. However, it extends in a direction substantially perpendicular to the floor surface of the luggage space 105 and extends above the tonneau cover 103, and the intake side 104 of the intake duct 102 forms a side wall surface of the luggage space 105. 106. Further, a part of the upper end of the intake duct 102 is extended in the lateral direction, and another intake port 107 is formed in the extended part.
  • crew's seating state is acquired by the seating state acquisition means, and an inlet-port variable mechanism changes the position of an inlet port based on this seating state.
  • the position is separated from the seating position of the occupant. This will reduce the discomfort given to the occupant due to the cooling fan noise, and prevent adverse effects on the battery, such as spilling liquid on the air intake and insufficient air flow due to the air intake being blocked. I have to.
  • the present invention has been made in view of the above-described problems, and the object of the present invention is to provide cooling air from an emergency intake port even if the intake port is blocked in a vehicle having a window on the rear side.
  • An object of the present invention is to provide a cooling structure for a vehicle battery unit that can be taken in, supplied to a battery, and cooled to prevent deterioration of battery characteristics and adverse effects on life.
  • the invention according to claim 1 includes a battery unit (for example, a battery unit 11 in an embodiment described later) mounted on a vehicle (for example, a vehicle 10 in an embodiment described later), an intake side, and the like.
  • An intake duct having an opening (for example, an intake side opening 13 in an embodiment described later) and extending toward the battery unit and supplying air in the vehicle interior to the battery unit as cooling air (for example, described later)
  • An intake grill for example, an embodiment described later in which a plurality of intake holes (for example, an intake hole 18 in an embodiment described later) is formed.
  • the intake grill forms a main intake port (for example, a main intake port 20 in an embodiment described later), and A sub-air intake (for example, described later) having an opening area smaller than that of the intake grill is formed at a mating portion between a window (for example, a quarter window 16 in the embodiment described later) and the interior member disposed on the rear side surface of the vehicle.
  • a cooling structure for a vehicle battery unit, characterized in that a sub-intake port 30) in the embodiment is formed.
  • the cooling air sucked from the main intake port and the auxiliary intake port is supplied to the battery unit through the same intake duct. It is characterized by
  • the interior member forms a window frame of the window (for example, a window frame 17 in an embodiment described later),
  • the intake grill is disposed on a substantially horizontal plane (e.g., a substantially horizontal plane 17a in an embodiment described later) of the interior member located immediately below the window from the front to the center of the window.
  • the auxiliary air inlet is formed at a mating portion between the upright portion of the interior member (for example, an upright portion 17b in an embodiment described later) and the window, which rises rearward from the substantially horizontal plane. To do.
  • the auxiliary intake port is a notch provided at the window side end of the interior member (for example, a notch 15a in an embodiment described later). ) And the window (for example, a gap C in an embodiment described later).
  • the sub-intake port is formed by an air hole provided in the interior member (for example, an air hole 15b in an embodiment described later).
  • the invention according to claim 6 includes, in addition to the structure of any one of claims 1 to 5,
  • the window is fixed to a shelf (for example, an air hole shelf 6a in an embodiment described later) formed by bending the vehicle body toward the passenger compartment.
  • a reinforcing member for example, a reinforcing member 31 in an embodiment described later
  • the cooling air sucked from the auxiliary air intake port passes through a gap (for example, a gap D in an embodiment described later) formed by the shelf and the back surface of the interior member, and the back surface of the reinforcing member and the interior member. Is introduced into the intake side opening from a space formed by (for example, a space S2 in an embodiment described later).
  • the negative pressure acting on the air intake duct is blocked while the communication between the auxiliary air intake port and the air intake duct is blocked during normal operation.
  • an elastic member for example, an elastic member 32 in an embodiment described later
  • the elastic member in addition to the configuration of the seventh aspect, includes the gap between the window and the interior member, or the shelf of the vehicle body and the back surface of the interior member. It is attached to the gap formed by
  • a sound absorbing material (for example, a sound absorbing material in an embodiment described later) 33) is affixed.
  • a sound absorbing material for example, a sound absorbing material 34 in an embodiment described later is attached to the shelf.
  • the auxiliary intake port functions as an emergency intake port and
  • the cooling air can be taken in and supplied to the battery unit to ensure the battery cooling performance.
  • the auxiliary intake port can be formed while maintaining the appearance of the vehicle interior.
  • the space occupied by the air intake duct can be reduced, and the air intake duct capable of supplying an air amount necessary and sufficient for cooling the battery unit is provided even in a small vehicle in which the space is restricted. can do.
  • the main intake port having a large opening area can be provided even in a small vehicle having a small installation space.
  • the emergency auxiliary air inlet can be arranged along the substantially vertical plane, and the possibility of being blocked by the occupant or the article can be greatly reduced. As a result, the amount of cooling air necessary for battery cooling can be ensured even in an emergency where the main air inlet is blocked.
  • the air sucked from the auxiliary air intake port can be sucked in low-temperature air instead of high-temperature air such as underfoot or trunk seat back, so that the battery can be effectively cooled. it can.
  • the auxiliary intake port is a gap formed at the joint portion between the interior member and the window, it is possible to provide an attractive intake port without increasing the number of parts.
  • the intake duct for connecting the auxiliary intake port and the intake side opening of the intake duct becomes unnecessary, and the number of parts can be reduced and the cost can be suppressed.
  • the elastic member when the negative pressure generated in the intake duct due to the main intake opening being blocked exceeds a predetermined value, the elastic member is elastically deformed, and the auxiliary intake opening and the intake opening of the intake duct are , And the cooling air in the passenger compartment can be taken in from the auxiliary air intake to cool the battery.
  • the elastic member In normal operation (when the main intake port is open), the elastic member blocks the communication between the auxiliary intake port and the intake-side opening, so that no intake noise is generated from the auxiliary intake port. There is no risk of discomfort.
  • the elastic member can be arranged without affecting the appearance of the room, and a clean room can be obtained.
  • the ninth and tenth aspects of the present invention it is possible to reduce the intake noise of the air taken in from the auxiliary intake port by absorbing the sound with the sound absorbing material, thereby making the vehicle interior quiet. Moreover, this can prevent discomfort given to the occupant.
  • FIG. 1 is a schematic side view of a hybrid vehicle equipped with a cooling structure for a vehicle battery unit according to a first embodiment of the present invention. It is the perspective view which looked at the inlet provided in the quarter window vicinity from the vehicle interior side.
  • A is a partially broken perspective view taken along arrow III in FIG. 2
  • (b) is an enlarged sectional view in an emergency of a portion surrounded by A in FIG. 3 (a)
  • (c) is FIG. 3 (a).
  • It is an expanded sectional view at the normal time of the part enclosed by A in FIG.
  • It is a side view which removes an interior member from the vehicle interior side in the vicinity of the intake port shown in FIG.
  • FIG. 6 is a diagram illustrating a cooling structure of a battery unit described in Patent Document 1.
  • a vehicle 10 on which the vehicle battery unit cooling structure of the present embodiment is mounted includes a power unit 1 in which an engine and a motor generator are provided in series, and the engine is driven and assisted by the motor generator.
  • This is a hybrid vehicle capable of collecting electric power from a motor generator and storing it in a battery during vehicle deceleration or the like.
  • the motor generator is, for example, a three-phase AC motor, and the driving force of the engine and the motor generator is transmitted to the front wheels 2 that are driving wheels.
  • the battery unit 11 in which the battery is accommodated is disposed under the floor of the luggage space 4 disposed at the rear of the rear seat 3.
  • the battery unit 11 also houses electrical components associated with the battery such as an inverter unit and a DC-DC converter unit (both not shown).
  • the inverter unit converts from direct current to alternating current when power is supplied from the battery of the direct current power source to the motor generator. Further, when the vehicle 10 decelerates or the like, when the engine output or the kinetic energy of the vehicle 10 is converted into electric energy and stored in the battery, the regenerative power generated by the motor generator functioning as a generator is changed from AC to DC. Convert and store in battery.
  • the DC-DC converter unit steps down the high-voltage DC voltage converted by the inverter unit.
  • an intake duct 12 that connects between the vehicle compartment 5 and the battery unit 11 is provided on one side wall of the luggage space 4 of the vehicle 10.
  • the intake duct 12 is, for example, a hollow member having a substantially rectangular cross section formed by bending with a synthetic resin, and is covered with a side lining 15 that is an interior member attached to the rear side surface of the vehicle 10.
  • the intake duct 12 has an intake side opening 13 that opens to the vehicle compartment 5 side, and the cooling fan 14 takes in the air in the vehicle compartment 5 as cooling air from the intake side opening 13 and supplies it to the battery unit 11. .
  • a part of the side lining 15 constitutes a window frame 17 of a quarter window 16 provided on the rear side surface of the rear seat 3, and the window frame 17 is directly below the quarter window 16.
  • a substantially horizontal plane 17a extending substantially horizontally from the front to the center of the quarter window 16 is located, and the standing portion 17b is formed to rise upward from the substantially horizontal plane 17a toward the rear.
  • an intake grille 19 having a plurality of intake holes 18 is disposed on the substantially horizontal surface 17a of the window frame 17, an intake grille 19 having a plurality of intake holes 18 is disposed.
  • the intake grille 19 is disposed so as to cover the intake side opening 13 of the intake duct 12 extending to the vicinity of the intake grille 19 so as to prevent an occupant from accidentally dropping an article into the intake duct 12. It is formed in a mesh shape.
  • the intake grille 19 forms a main intake port 20, and normally takes in the air in the passenger compartment 5 from the plurality of intake holes 18 of the intake grille 19 and supplies it to the battery unit 11 through
  • a cutout portion 15a is formed along the vehicle side with respect to the other portion of the window side end portion.
  • a gap C formed between the notch 15 a and the quarter window 16 constitutes the auxiliary air inlet 30.
  • a space S ⁇ b> 1 communicating with the auxiliary air intake 30 is formed between the body 6 and the quarter window 16.
  • the quarter window 16 is fitted in a shelf 6 a formed by bending the body 6 toward the passenger compartment and is attached with an adhesive 35. Further, a reinforcing member 31 is welded to the opposite side of the shelf 6 a of the body 6 to the quarter window 16 to form a superposed portion 41, and the intake side opening of the intake duct 12 is formed by the reinforcing member 31 and the back surface of the side lining 15. A space S ⁇ b> 2 communicating with 13 is formed.
  • the auxiliary air intake port 30 communicates with a space S ⁇ b> 1 defined between the body 6 and the quarter window 16, and is opposed to the side lining 15 by a predetermined distance.
  • the space 6 defined by the back surface of the body 6 and the side lining 15 communicates with a gap D formed by the body 6.
  • an elastic member 32 is releasably attached as shown in FIG. 3C. In the state where the air in the passenger compartment 5 is taken in from the intake hole 18 and supplied to the battery unit 11 via the intake duct 12, the gap D is closed.
  • the elastic member 32 is elastically deformed when the pressure in the intake duct 12, in other words, the pressure in the space S2 defined by the reinforcing member 31 and the side lining 15 changes, and the negative pressure exceeds a predetermined value. 30 and the space S2, in other words, the auxiliary intake port 30 and the intake side opening 13 of the intake duct 12 are communicated with each other.
  • the air in the passenger compartment 5 sucked from the auxiliary air inlet 30 passes through the gap D opened by the elastic deformation of the elastic member 32 as shown by broken line arrows in FIGS. Then, it is guided to the intake side opening 13 of the intake duct 12 through the space S2.
  • the elastic member 32 may be provided in the notch 15 a of the side lining 15 so as to close the gap C between the quarter window 16 and the side lining 15.
  • sound absorbing materials 33 and 34 such as sponges are respectively attached to the back side of the side lining 15 in the vicinity of the auxiliary air inlet 30 and the body 6.
  • the auxiliary intake port 30 is an emergency intake port that operates when the main intake port 20 (the intake grille 19) is blocked.
  • the auxiliary intake port 30 By providing the auxiliary intake port 30 in a substantially vertical direction, the auxiliary intake port 30 is provided. The possibility that the air inlet 30 is blocked is greatly reduced. Further, the opening area of the auxiliary intake port 30 is smaller than the opening area of the intake grill 19 which is the main intake port 20. This is because the auxiliary air intake 30 is an emergency air intake and can be installed at a position that is not conspicuous even for a small vehicle.
  • the auxiliary air inlet 30 can also be configured as an air hole 15b formed in the side lining 15, as shown in FIG. In this case, it is desirable to provide the air hole 15 b in the standing portion 17 b of the side lining 15 in order to eliminate as much as possible the possibility that the auxiliary air inlet 30 is blocked.
  • the air in the passenger compartment 5 sucked from the air hole 15b (sub-intake port 30) passes through the gap D opened by elastic deformation of the elastic member 32, and passes through the space S2. It is guided to the intake side opening 13 of the intake duct 12.
  • the intake duct 12 is used in common for the main intake port 20 and the auxiliary intake port 30, and the cooling air sucked from the main intake port 20 and the auxiliary intake port 30 is It is guided into the same intake duct 12 and supplied to the battery unit 11. Specifically, the air sucked from the intake grille 19 (main intake port 20) is guided to the intake duct 12 from the intake side opening 13 that contacts the back surface of the intake grille 19 as shown by the solid line arrow in FIG. Then, the air is blown to the battery unit 11. In other words, the intake grill 19 and the battery unit 11 are directly connected by the intake duct 12.
  • the air sucked from the auxiliary intake port 30 passes through the space S2 defined by the reinforcing member 31 of the vehicle 10 and the back surface of the side lining 15 as shown by the broken arrow in FIG.
  • the air is guided to the intake side opening 13 of the intake duct 12 that is spaced apart and is blown to the battery unit 11 through the intake duct 12.
  • the cooling structure for the vehicle battery unit of the present embodiment will be described.
  • the air in the passenger compartment 5 normally passes through the intake grille 19, which is the main intake port 20.
  • the air is taken into the intake duct 12 from the intake side opening 13 (indicated by solid arrows in FIG. 2) and supplied to the battery unit 11 to be cooled. Since the opening area of the main intake port 20 is large, almost no intake noise due to intake air from the main intake port 20 is generated, and the passenger is not uncomfortable.
  • the intake grille 19 prevents articles from falling into the intake duct 12.
  • the air in the passenger compartment 5 is taken in from the auxiliary intake port 30 through the spaces S1, S2, the intake side opening 13 and the intake duct 12, as indicated by broken line arrows.
  • the battery unit 11 is supplied and cooled.
  • the auxiliary air intake 30 acts as an emergency air intake when the main air intake 20 is blocked, and cools the battery unit 11. Therefore, even if the main air intake 20 is blocked, the battery performance is improved. Can be maintained, and adverse effects on the lifetime can be eliminated.
  • the battery unit 11 mounted on the vehicle, the intake side opening 13 and the battery unit 11 extend toward the battery unit 11.
  • 5 is arranged on a side lining 15 attached to the rear side surface of the vehicle so as to cover the intake duct 12 that supplies the air in the battery 5 to the battery unit 11 as cooling air and the intake side opening 13 of the intake duct 12.
  • the intake grille 19 is formed with a cooling fan 14 for taking cooling air into the intake duct 12, and the intake grille 19 forms a main intake port 20 and is disposed on the rear side surface of the vehicle.
  • a sub-intake port 30 having an opening area smaller than that of the intake grill 19 is formed at the joint portion of the quarter window 16 and the side lining 15.
  • the air in the passenger compartment 5 is taken in from the auxiliary intake port 30 as emergency cooling air and supplied to the battery unit 11 to ensure battery cooling performance. can do. Thereby, the abnormal temperature rise of the battery can be prevented, and the deterioration of the battery characteristics and the adverse effect on the life can be prevented.
  • the space occupied by the air intake duct 12 can be reduced. Even in a small vehicle in which space is restricted, the intake duct 12 having a cross-sectional area capable of supplying an air amount necessary and sufficient for battery cooling can be provided.
  • the side lining 15 forms a window frame 17 of the quarter window 16, and the intake grille 19 is disposed on a substantially horizontal plane 17 a of the side lining 15 located immediately below the quarter window 16 from the front to the center of the quarter window 16. Therefore, even in a small vehicle having a small installation space, the main intake port 20 having a large opening area can be provided. Further, since the auxiliary air intake 30 is formed at the mating portion of the side lining 15 rising portion 17b and the quarter window 16 that rises rearward from the substantially horizontal surface 17a of the side lining 15, the auxiliary intake port 30 is used for emergency in a substantially vertical direction. The auxiliary air intake 30 can be disposed, and the possibility of being blocked by an occupant or an article can be greatly reduced.
  • Cooling of the air volume necessary for battery cooling even in an emergency where the main air intake 20 is blocked Wind can be secured. Further, the air sucked from the auxiliary air intake 30 can suck low temperature air instead of high temperature air such as the feet or the back of the seat of the trunk, so that the battery unit 11 is effectively cooled. can do.
  • the auxiliary air inlet 30 is formed by a gap C between the cutout portion 15a at the window side end portion of the side lining 15 and the quarter window 16, the auxiliary air port 30 is excellent in appearance at low cost without using a dedicated part.
  • An intake port 30 can be formed.
  • the auxiliary intake port 30 may be formed by the air hole 15b provided in the side lining 15. Even in this case, the auxiliary intake port 30 is excellent in appearance at low cost without using a dedicated part. 30 can be formed.
  • the quarter window 16 is fixed to a shelf 6 a formed by bending the body 6 toward the passenger compartment side, and a reinforcing member 31 is attached to the opposite side of the shelf 6 a to the quarter window 16.
  • the cooling air to be sucked in passes through a gap D formed by the shelf 6a and the back surface of the side lining 15, and from the space S2 formed by the reinforcing member 31 and the back surface of the side lining 15, the intake side opening of the intake duct 12 13, an intake duct for communicating the auxiliary intake port 30 with the intake side opening 13 of the intake duct 12 becomes unnecessary, and the number of parts can be reduced and the cost can be reduced.
  • the auxiliary intake port 30 and the intake duct 12 are blocked, and when the negative pressure acting on the intake duct 12 exceeds a predetermined value, the auxiliary intake port Since the elastic member 32 that allows the communication between the opening 30 and the intake duct 12 is provided, the elastic member 32 is elastically deformed when the negative pressure acting on the intake duct 12 exceeds a predetermined value due to the main intake opening 20 being blocked. Thus, the auxiliary air inlet 30 and the air intake side opening 13 of the air intake duct 12 are communicated with each other, and the cooling air in the passenger compartment 5 is taken in from the auxiliary air inlet 30 to cool the battery unit 11. Further, since the communication between the auxiliary intake port 30 and the intake duct 12 is blocked by the elastic member 32 at normal times, no intake noise is generated from the auxiliary intake port 30 and there is no possibility of causing discomfort to the occupant.
  • the elastic member 32 is attached to the gap C between the quarter window 16 and the side lining 15 or the gap D formed by the shelf 6a of the body 6 and the back surface of the side lining 15, The elastic member 32 can be disposed without affecting the appearance of the interior, and a clean room can be obtained.
  • the sound absorbing material 33 is affixed to the back side of the side lining 15 in the vicinity of the auxiliary air intake 30, the intake air sound taken in from the auxiliary air intake 30 is absorbed by the sound absorbing material 33 and reduced.
  • the interior of the chamber 5 can be quiet. Moreover, this can prevent discomfort given to the occupant.
  • the sound absorbing material 34 is affixed to the shelf 6a of the body 6, the intake sound of the air taken in from the auxiliary air intake 30 is absorbed and reduced by the sound absorbing material 34, so that the interior of the passenger compartment 5 is quiet. Can be. Moreover, this can prevent discomfort given to the occupant.
  • the present invention is not limited to the above-described embodiments and modifications, and modifications, improvements, and the like can be made as appropriate.
  • the hybrid vehicle has been described as the application vehicle, the present invention is not limited to this, and may be, for example, an electric vehicle using only a motor as a drive source.
  • the intake duct 12 is formed such that a part of the intake side extends toward the auxiliary intake port 30 and the intake side opening 13 covers the auxiliary intake port 30. May be.
  • the cooling air taken in from the auxiliary intake port 30 directly enters the intake side opening 13 without passing through the space S2 (see FIG. 3B) defined by the reinforcing member 31 and the side lining 15. Is done.
  • the air in the passenger compartment 5 is taken in from the main intake port 20 and supplied to the battery unit 11 via the intake side opening 13 and the intake duct 12 at normal times. . Further, in an emergency when the main intake port 20 is blocked, the air in the passenger compartment 5 taken in from the auxiliary intake port 30 flows from the intake side opening 13 to the intake duct 12 as indicated by broken line arrows in the figure. Thus, the battery unit 11 can be efficiently cooled.
  • the elastic member 32 that blocks the communication between the auxiliary intake port 30 and the intake duct 12 is provided in the gap D formed by the body 6 and the side lining 15 in a normal state, but the elastic member 32 is not necessarily provided.
  • the auxiliary intake port 30 and the intake side opening 13 of the intake duct 12 may always communicate with each other.

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PCT/JP2011/052842 2010-02-10 2011-02-10 車両用バッテリーユニットの冷却構造 WO2011099549A1 (ja)

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CN110809525B (zh) * 2017-07-06 2023-01-03 本田技研工业株式会社 车辆
JP6496790B2 (ja) * 2017-09-08 2019-04-03 株式会社Ｓｕｂａｒｕ 車載機器冷却装置
EP4151439A1 (en) * 2021-09-16 2023-03-22 Volvo Truck Corporation Vehicle

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CN102725164B (zh) 2015-09-30
CN102725164A (zh) 2012-10-10
JP5557856B2 (ja) 2014-07-23
DE112011100500T5 (de) 2013-03-14

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