CN103855442A - Battery pack cooling structure for motor car - Google Patents

Battery pack cooling structure for motor car Download PDF

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Publication number
CN103855442A
CN103855442A CN201310560056.8A CN201310560056A CN103855442A CN 103855442 A CN103855442 A CN 103855442A CN 201310560056 A CN201310560056 A CN 201310560056A CN 103855442 A CN103855442 A CN 103855442A
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CN
China
Prior art keywords
vehicle
inlet pipe
air inlet
pipe portion
mentioned
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Granted
Application number
CN201310560056.8A
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Chinese (zh)
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CN103855442B (en
Inventor
原田优
尾藤诚二
泉健太郎
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Suzuki Motor Corp
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Suzuki Motor Corp
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Publication of CN103855442B publication Critical patent/CN103855442B/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • 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
    • 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
    • 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
    • B60K2001/0416—Arrangement in the rear part of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Secondary Cells (AREA)

Abstract

A battery pack cooling structure for a motor car, which can enhance the cooling performance inside the battery pack, is provided. The battery pack cooling structure cools the battery pack (7). A downstream side air intake line portion (11) connected to the battery pack (7) is arranged toward a vehicle front side of a battery pack (7) and between an upper surface of a rear floor panel (5) and a seat cushion (2) of a rear seat (1). An upstream side air intake line portion (12) connected to a vehicle-front end portion of an output side with the downstream side air intake line portion is arranged along the length of a vehicle width direction and between the upper surface of the rear floor panel (5) and the seat cushion (2) of the rear seat (1). Air intake openings (14) introduce air inside a vehicle cabin that is formed at end portions along the width direction of the input line portion. Accordingly, the temperature of the air converged at the downstream side air intake line portion (11) is equalized even when an air temperature difference is generated at the vehicle width direction in a carriage.

Description

Vehicle battery bag cooling structure
Technical field
The present invention relates to the cooling structure of vehicle battery bag, be particularly applicable to being accommodated with cooling for the power brick of the high-voltage battery module of electric motor car, hybrid vehicle etc.
Background technology
In the power brick for electric automobile, hybrid vehicle, due to the size of the electric capacity of battery module, the volume of power brick is also large.Therefore, most upper surfaces that power brick are configured in to the rear floor panel of the rear view of vehicle of back seat.In the power brick of such storage high-voltage battery module, in the time discharging and recharging, produce heat from battery module.In order to prevent the performance degradation of battery module, need to suitably remove this heat.As the cooling structure of such vehicle battery bag, there is the structure that for example JP is recorded for No. 2006-335244.In the cooling structure of this vehicle battery bag, be configured in the space between back seat and right back car door by carrying out cooling air inlet pipe for the air in supply compartment in power brick, make the suction inlet of air inlet pipe be opened in the below of the seat surface of rear seat.Power brick be connected internally to fan, by this fan by the air intake in compartment in power brick, cool batteries module.
But, in the vehicle battery bag cooling structure of recording for No. 2006-335244 in JP, between back seat and right back car door, configure air inlet pipe, below the right side of back seat, offer suction inlet.Therefore, produce following problem: when the temperature in compartment is because a side that has in deviation, compartment that temperature is offered at the suction inlet of air inlet pipe such as sunshine etc. is when higher, the cooling performance of the inside of power brick declines.
Summary of the invention
The present invention completes in view of problem points as above, and its object is the vehicle battery bag cooling structure of the cooling performance that the inside that can improve power brick is provided.
In order to solve above-mentioned problem, a mode of invention is vehicle battery bag cooling structure, its upper surface to floor panel after being configured at the rear view of vehicle of back seat, the power brick that is accommodated with battery module in inside are carried out cooling, above-mentioned vehicle battery bag cooling structure comprises: downstream air inlet pipe portion, its from above-mentioned power brick towards vehicle front be configured in above-mentioned between the upper surface of floor panel and the seat cushion of above-mentioned back seat; Upstream side air inlet pipe portion, its vehicle front end in above-mentioned downstream air inlet pipe portion is connected to this downstream air inlet pipe portion, is configured between the upper surface of above-mentioned rear floor panel and the seat cushion of above-mentioned back seat, makes its length direction consistent with vehicle-width direction; And air intake, it is formed on the vehicle-width direction both ends of above-mentioned upstream side air inlet pipe portion, introduces the air in compartment.
In addition, the connecting portion of above-mentioned upstream side air inlet pipe portion and above-mentioned downstream air inlet pipe portion is configured in the vehicle-width direction central portion of above-mentioned upstream side air inlet pipe portion.
According to a mode of invention, when the upper surface to floor panel after being configured at the rear view of vehicle of back seat, the power brick that is accommodated with battery module in inside is carried out when cooling, the downstream air inlet pipe portion that is connected to power brick is configured between the upper surface of rear floor panel and the seat cushion of back seat towards vehicle front, its length direction and vehicle-width direction are as one man configured between the upper surface of rear floor panel and the seat cushion of back seat the upstream side air inlet pipe portion of the vehicle front end that is connected to downstream air inlet pipe portion, vehicle-width direction both ends in upstream side air inlet pipe portion form the air intake of introducing the air in compartment.The temperature rise of the air in compartment is due to sunshine for example direction, sunshine state and produce difference at vehicle-width direction.In order to tackle this situation, the air intake forming from the vehicle-width direction both ends of the upstream side air inlet pipe portion below the seat cushion of back seat is introduced the air in compartment simultaneously.Therefore, can not sheltered from air intake by passenger's foot etc., suck the air at the vehicle-width direction both ends in compartment and it is converged in downstream air inlet pipe portion.Therefore,, even due to sunshine direction, sunshine state and vehicle-width direction in compartment produces the temperature difference of air, the temperature of the air converging in downstream air inlet pipe portion also averages out., can prevent that the air of excessive temperature rising is inhaled into the inside of power brick, can improve the cooling performance of the inside of power brick.
In addition, the connecting portion of upstream side air inlet pipe portion and downstream air inlet pipe portion is configured in to the vehicle-width direction central portion of upstream side air inlet pipe portion.Therefore, even if the vehicle-width direction both sides in compartment produce the temperature difference of air, also can make the air of temperature rise and the air of low temperature respectively mix equably with identical amount, can prevent reliably that the air of excessive temperature rising is inhaled into the inside of power brick.
Brief description of the drawings
Fig. 1 is the stereogram that an execution mode of vehicle battery bag cooling structure of the present invention is shown.
Fig. 2 is the vertical view of the vehicle battery bag cooling structure of Fig. 1.
Fig. 3 is the end view of the vehicle battery bag cooling structure of Fig. 1.
Fig. 4 is the front view of the vehicle battery bag cooling structure of Fig. 1.
Fig. 5 is the stereogram of the air inlet pipe of the vehicle battery bag cooling structure of Fig. 1.
Fig. 6 is the stereogram that the air inlet pipe of the variation of the vehicle battery bag cooling structure of Fig. 1 is shown.
Fig. 7 is the end view of the vehicle battery bag cooling structure of Fig. 6.
Embodiment
Then, with reference to accompanying drawing, the execution mode of vehicle battery bag cooling structure of the present invention is described.Fig. 1 is the stereogram that the vehicle battery bag cooling structure of present embodiment is shown, Fig. 2 is the vertical view of the vehicle battery bag cooling structure of Fig. 1, Fig. 3 is the end view of the vehicle battery bag cooling structure of Fig. 1, Fig. 4 is the front view of the vehicle battery bag cooling structure of Fig. 1, and Fig. 5 is the stereogram of the air inlet pipe of the vehicle battery bag cooling structure of Fig. 1.Electric automobile or hybrid vehicle that the vehicle of present embodiment is 2 row's seats before and after having, seat is listed as.The back seat 1 that is equivalent to rear row is configured to the backrest 3 that has the seat cushion 2 that passenger takes and become passenger's backrest.Back seat 1 shown in Fig. 1～Fig. 4 has length at vehicle-width direction, can take for 2～3 passengers.
The vehicle front of the backrest 3 of back seat 1 is compartment, and the rear view of vehicle of the backrest 3 of back seat 1 is luggage case.Lower surface in compartment forms ground by front floor panel 4, is formed with bottom surface (ground) at the lower surface of luggage case by rear floor panel 5.Front floor panel 4 and the rear floor panel 5 of present embodiment are a series of, and the stage portion 6 that floor panel 5 sides uprise after both linking portions are formed with disposes the seat cushion 2 of back seat 1 in this stage portion 6.In the present embodiment, dispose power brick 7 at the upper surface of the rear floor panel 5 of the rear view of vehicle of back seat 1.In this power brick 7, be accommodated with multiple battery modules 8, battery module 8 comprises multiple unit, can store power in each battery module 8, and in addition, the electric power of storing can be released.In addition, in Fig. 5, omit power brick.In addition, in luggage case, also sometimes cover on rear floor panel 5 by top.
The inside of power brick 7 is by being connected to cooling fan 10 towards the blast pipe 9 of the outstanding configuration of rear view of vehicle.In the time driving cooling fan 10, can introduce the air in compartment, the battery module 8 of the inside of cool batteries bag 7 from air inlet pipe described later.On the other hand, be connected with at the vehicle-width direction central portion of power brick 7 the downstream air inlet pipe portion 11 passing through in the inside of power brick 7.This downstream air inlet pipe portion 11 as one man configures length direction and vehicle front between the seat cushion 2 of back seat 1 and rear floor panel 5.And, be connected with in the vehicle front end of downstream air inlet pipe portion 11 in the direction of intersecting with the length direction of this downstream air inlet pipe portion 11, the upstream side air inlet pipe portion 12 at vehicle-width direction with length, the air inlet pipe 13 of the air of cool batteries bag 7 comprises this upstream side air inlet pipe portion 12 and downstream air inlet pipe portion 11.Forming the upstream side air inlet pipe portion 12 of this air inlet pipe 13 and downstream air inlet pipe portion 11 is accommodated in respectively in the groove forming at the lower surface of the seat cushion 2 of back seat 1.In addition, particularly upstream side air inlet pipe portion 12 plays a role as the crossbeam under the seat cushion 2 of back seat 1, so air inlet pipe 13 entirety also play a role as the strength member of the seat cushion 2 of back seat 1.
In the present embodiment, the air intake 14 of introducing the air in compartment is offered at the vehicle-width direction both ends that have a upstream side air inlet pipe portion 12 of length at vehicle-width direction.Near of the left and right tail gate of this air intake 14 below the seat cushion 2 of back seat 1 and in compartment, i.e. the vehicle-width direction both ends opening in compartment, introduce thus the air in compartment and be drawn into the inside of power brick 7.In addition, the connecting portion of downstream air inlet pipe portion 11 and upstream side air inlet pipe portion 12 is configured to the vehicle-width direction central portion that is located at vehicle-width direction and has the upstream side air inlet pipe portion 12 of length.Therefore, as shown in Figure 2, the vehicle-width direction distance L 2 of the vehicle-width direction distance L 1 of the air intake 14 from downstream air inlet pipe portion 11 to vehicle right side and the air intake 14 from downstream air inlet pipe portion 11 to vehicle left side is equal or roughly equal.
In the compartment of vehicle, well-known, due to sunshine direction, sunshine state, the temperature of air produces deviation.The deviation of the temperature of this air in a car compartment due to solar radiation, do not irradiate etc., on vehicle-width direction and vehicle fore-and-aft direction, produce significantly.For example, in the time introducing for the air of cool batteries bag inside, only in the case of any side of vehicle-width direction is offered, likely introduce the air that excessive temperature rises due to sunshine at air intake in compartment, such in the situation that, the cooling performance of the inside of power brick declines.In contrast, in the vehicle battery bag cooling structure of present embodiment, below the seat cushion 2 of back seat 1, the air for cool batteries bag 7 inside is introduced in the vehicle-width direction both sides in compartment.Therefore, even in the case of the temperature of the air in a car compartment of vehicle-width direction one side is high, also introduce the air in a car compartment of the low temperature of vehicle-width direction opposite side, can prevent thus from downstream air inlet pipe portion 11 by the air intake of excess Temperature the inside to power brick 7.And, equate by the distance L 2 that makes the distance L 1 of the air intake 14 from downstream air inlet pipe portion 11 to vehicle right side and the air intake 14 from downstream air inlet pipe portion 11 to vehicle left side, can make the air in a car compartment of the low temperature of any the opposing party in air in a car compartment and the vehicle-width direction of temperature rise of any one party in vehicle-width direction mix equably.
Like this, in the vehicle battery bag cooling structure of present embodiment, when the upper surface to floor panel 5 after being configured at the rear view of vehicle of back seat 1, the power brick 7 that is accommodated with battery module 8 in inside is carried out when cooling, the downstream air inlet pipe portion 11 that is connected to power brick 7 is configured between the upper surface of rear floor panel 5 and the seat cushion 2 of back seat 1 towards vehicle front, its length direction and vehicle-width direction are as one man configured between the upper surface of rear floor panel 5 and the seat cushion 2 of back seat 1 the upstream side air inlet pipe portion 12 of the vehicle front end that is connected to downstream air inlet pipe portion 11, vehicle-width direction both ends in upstream side air inlet pipe portion 12 form the air intake 14 of introducing the air in compartment.The temperature rise of the air in compartment is according to sunshine for example direction, sunshine state and produce difference at vehicle-width direction.In order to tackle this situation, the air intake 14 forming from the vehicle-width direction both ends of the upstream side air inlet pipe portion 12 below the seat cushion 2 of back seat 1 is introduced the air in compartment simultaneously.Therefore, can not sheltered from air intake by passenger's foot etc., suck the air at the vehicle-width direction both ends in compartment and it is converged in downstream air inlet pipe portion 11.Therefore,, even if the vehicle-width direction in compartment produces the temperature difference of air, the temperature of the air converging in downstream air inlet pipe portion 11 also can equalization., can prevent that the air of excessive temperature rising is inhaled into the inside of power brick 7, can improve the cooling performance of the inside of power brick 7.
In addition, the connecting portion of upstream side air inlet pipe portion 12 and downstream air inlet pipe portion 11 is configured in to the vehicle-width direction central portion of upstream side air inlet pipe portion 12.Therefore, even if the vehicle-width direction both sides in compartment produce the temperature difference of air, also can make the air of temperature rise and the air of low temperature respectively mix equably with identical amount, can prevent reliably that the air of excessive temperature rising is inhaled into the inside of power brick 7.
Fig. 6, Fig. 7 are the variation of the vehicle battery bag cooling structure of present embodiment, and Fig. 6 is the stereogram of air inlet pipe 13, and Fig. 7 is the end view of air inlet pipe 13.In addition, the formation being equal to above-mentioned execution mode is marked to the Reference numeral being equal to, description is omitted.In this variation, make downstream air inlet pipe portion 11 in the 12 interior perforations of upstream side air inlet pipe portion, and make it extend to vehicle front (the vehicle front end of the seat cushion 2 of back seat 1), form the center air intake 15 towards vehicle front opening in the vehicle front end of this prolongation.The inside of downstream air inlet pipe portion 11 and upstream side air inlet pipe portion 12 links mutually at breakthrough part.According to this variation, except above-mentioned execution mode, the air in a car compartment of vehicle-width direction central portion also can be introduced into air as the internal cooling of power brick 7 and mix, and therefore can make the further homogenizing of temperature of the tempering air of the inside of power brick 7.
To the cross reference of related application
The application requires the priority of No. 2012-260110th, the Japanese patent application of on November 28th, 2012 application, enrolls by reference its full content at this.

Claims (5)

1. a vehicle battery bag cooling structure, upper surface to floor panel after being configured at the rear view of vehicle of back seat, the power brick that is accommodated with battery module in inside are carried out cooling, and above-mentioned vehicle battery bag cooling structure comprises:
Downstream air inlet pipe portion, its from above-mentioned power brick towards vehicle front be configured in above-mentioned between the upper surface of floor panel and the seat cushion of above-mentioned back seat;
Upstream side air inlet pipe portion, its vehicle front end in above-mentioned downstream air inlet pipe portion is connected to this downstream air inlet pipe portion, is configured between the upper surface of above-mentioned rear floor panel and the seat cushion of above-mentioned back seat, and its length direction is consistent with vehicle-width direction; And
Air intake, it is formed on the vehicle-width direction both ends of above-mentioned upstream side air inlet pipe portion, introduces the air in compartment.
2. vehicle battery bag cooling structure according to claim 1, wherein, the connecting portion of above-mentioned upstream side air inlet pipe portion and above-mentioned downstream air inlet pipe portion is configured in the vehicle-width direction central portion of above-mentioned upstream side air inlet pipe portion.
3. vehicle battery bag cooling structure according to claim 1, wherein, the distance of the vehicle-width direction from above-mentioned downstream air inlet pipe portion to an above-mentioned air intake on vehicle right side with equate to the vehicle-width direction distance of another above-mentioned air intake of vehicle left side from above-mentioned downstream air inlet pipe portion.
4. vehicle battery bag cooling structure according to claim 1, wherein, above-mentioned downstream air inlet pipe portion mixes the air in the compartment of low temperature of air in the compartment of high temperature of vehicle-width direction one side and vehicle-width direction opposite side equably.
5. vehicle battery bag cooling structure according to claim 1 wherein, further comprises the center air intake towards vehicle front opening between the above-mentioned air intake at the vehicle-width direction both ends of above-mentioned upstream side air inlet pipe portion.
CN201310560056.8A 2012-11-28 2013-11-12 Battery pack cooling structure for motor car Active CN103855442B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-260110 2012-11-28
JP2012260110A JP2014104891A (en) 2012-11-28 2012-11-28 Cooling structure of vehicular battery pack

Publications (2)

Publication Number Publication Date
CN103855442A true CN103855442A (en) 2014-06-11
CN103855442B CN103855442B (en) 2017-01-11

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JP (1) JP2014104891A (en)
CN (1) CN103855442B (en)
DE (1) DE102013223667A1 (en)
IN (1) IN2013CH04743A (en)

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CN106240283A (en) * 2015-06-15 2016-12-21 现代自动车株式会社 Seat and the cooling structure of electronic module

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US10608303B2 (en) * 2017-02-08 2020-03-31 Denso Corporation Power source apparatus and work machine having the same
JP6889405B2 (en) * 2017-12-11 2021-06-18 トヨタ自動車株式会社 Cooling duct
JP7206079B2 (en) * 2018-09-10 2023-01-17 株式会社Subaru Storage battery cooling control device and electric vehicle
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