WO2013073432A1 - 車両用バッテリユニット - Google Patents
車両用バッテリユニット Download PDFInfo
- Publication number
- WO2013073432A1 WO2013073432A1 PCT/JP2012/078845 JP2012078845W WO2013073432A1 WO 2013073432 A1 WO2013073432 A1 WO 2013073432A1 JP 2012078845 W JP2012078845 W JP 2012078845W WO 2013073432 A1 WO2013073432 A1 WO 2013073432A1
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- Prior art keywords
- battery
- lower plate
- heat sink
- vehicle
- space
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B60L58/27—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 heating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—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
- H01M10/6565—Gases with forced flow, e.g. by blowers with recirculation or U-turn in the flow path, i.e. back and forth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0438—Arrangement under the floor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Definitions
- the present invention relates to a vehicle battery unit.
- Patent Document 1 As a vehicle battery unit used for an electric vehicle or the like, for example, the one described in Patent Document 1 is known.
- a battery unit is disposed below a vehicle floor panel, an air inlet is provided in front of a battery case having a battery housing space for housing a battery, and cooling air taken from the air inlet is placed behind the battery case. By discharging from the provided exhaust port, the battery is directly cooled with cooling air to suppress heat generation of the battery.
- Patent Document 1 it is disclosed that in consideration of the influence of dew condensation in the battery case, a water absorbing member is disposed above a portion where water adhesion should be avoided, thereby preventing a problem due to dew condensation.
- Patent Document 1 it is described that the influence of dew condensation in the battery case is suppressed by arranging the water absorbing member, but the number of parts increases by the number of water absorbing members and the process of attaching the water absorbing member increases. There was a problem. Therefore, a mechanism that can suppress the intrusion of water into the battery housing space without providing a water absorbing member is desired. In Patent Document 1, no consideration is given to the inflow of foreign matter such as dust from the air inlet into the battery housing space.
- the present invention has been made in view of the above-described problems, and an object of the present invention is to provide a vehicle battery unit that can suppress the inflow of foreign matters such as dust and the entry of water into a battery housing space that houses a battery. And
- a battery for example, a battery 11 in an embodiment described later
- a battery case for example, a battery case 12 in an embodiment described later
- a vehicle battery unit for example, a battery unit 10 according to an embodiment described later
- a cooling space for example, a cooling space C in an embodiment described later
- a battery housing space for example, a battery housing space M in an embodiment described later
- the cooling space includes an upper plate (for example, an upper plate 41 in an embodiment described later), a lower plate (for example, a lower plate 43 in an embodiment described later), the upper plate, and the lower plate on which the battery is mounted on the upper surface. And a heat sink (for example, a heat sink 42 in an embodiment described later) disposed between the plate and the plate.
- an upper plate for example, an upper plate 41 in an embodiment described later
- a lower plate for example, a lower plate 43 in an embodiment described later
- the upper plate for example, and the lower plate on which the battery is mounted on the upper surface.
- a heat sink for example, a heat sink 42 in an embodiment described later
- the invention of Claim 3 is The upper plate and the heat sink, and the lower plate and the heat sink are respectively joined by welding.
- the invention of Claim 4 adds to the structure of Claim 3,
- the welding area between the upper plate and the heat sink is larger than the welding area between the lower plate and the heat sink.
- the invention described in claim 5 includes: The lower plate is fixed to a vehicle body.
- the battery case includes an upper cover (for example, an upper cover 21 in an embodiment described later) and an under cover (for example, an under cover 22 in an embodiment described later) having the cooling space and the battery accommodating space therein.
- the under cover is fastened to the lower plate with bolts (for example, bolts 66 and drain bolts 68 in the embodiments described later).
- the intake port is located at a rear part and an upper part of the battery case and opens forward.
- the invention described in claim 8 includes: The air inlet is located between the battery case and the floor panel.
- the invention described in claim 9 includes: A supply / discharge unit (for example, supply / discharge unit 13 of an embodiment described later) having the intake port and an exhaust port (for example, an exhaust port 35 of an embodiment described later) for discharging the cooling air is provided in the battery case. It is attached.
- a supply / discharge unit for example, supply / discharge unit 13 of an embodiment described later
- an exhaust port for example, an exhaust port 35 of an embodiment described later
- the cooling space and the battery housing space are formed in separate spaces, thereby suppressing the inflow of foreign matter such as dust and the entry of water into the battery housing space. be able to. Further, since the battery case is disposed below the floor panel, the center of gravity of the vehicle can be lowered.
- the number of parts can be reduced, and the manufacturing can be facilitated at low cost.
- the heat transfer area becomes larger on the upper plate side, thereby reliably cooling the battery. be able to.
- the battery case can be securely fixed to the vehicle body as compared with the case of fixing the upper plate to the vehicle body.
- the lower plate can be prevented from peeling off.
- the bolt that fastens the under cover and the lower plate can function as a drain bolt.
- the seventh aspect of the present invention it is possible to suppress the inflow of foreign matters such as dust and the entry of water into the cooling space.
- the eighth aspect of the present invention it is possible to suppress the inflow of foreign matters such as dust and the entry of water into the cooling space.
- the supply / exhaust unit having the intake port and the exhaust port is separated from the battery case, so that the degree of freedom in arrangement and the handleability can be improved.
- FIG. 1 It is a figure which shows the state which mounted the battery unit of one Embodiment which concerns on this invention in the vehicle. It is a fragmentary sectional view of the battery unit of the state mounted in the vehicle. It is a disassembled perspective view of a battery unit. It is a disassembled perspective view of a heat sink assembly. It is a fragmentary perspective view of the cooling part of a heat sink. (A) is the figure which looked at the upper plate where the heat sink was welded from the upper part, (b) was the figure which looked at the lower plate where the heat sink was welded from the lower part. It is a disassembled perspective view of the frame structure and battery unit of the vehicle shown in FIG. It is sectional drawing which shows the example which comprised the volt
- the vehicle battery unit 10 is disposed in an underfloor space S located below a floor panel FP of a vehicle, for example, an electric vehicle EV.
- the underfloor space S is partitioned from the cabin CA via the floor panel FP.
- various vehicles which can be driven by a motor such as a hybrid vehicle in addition to an electric vehicle can be adopted.
- the battery unit 10 includes a battery 11, a battery case 12 that houses the battery 11, and a supply / discharge unit 13 that is attached to the rear and upper part of the battery case 12.
- the battery case 12 has an outer shell formed of an upper cover 21 and an under cover 22, and a heat sink assembly is formed in the internal space of the battery case 12 formed by the upper cover 21 and the under cover 22. 23 is provided.
- the internal space of the battery case 12 is partitioned into a battery housing space M that houses the battery 11 and a cooling space C into which cooling air is introduced.
- a pair of exhaust communication parts 21a and 21a (only one is shown) communicating with the cooling space C are formed in both ends, and the intake communication part 21b opens at the center part. (See FIG. 2).
- the pair of exhaust communication portions 21 a and 21 a and the intake communication portion 21 b are connected to the supply / discharge unit 13 attached to the battery case 12.
- the supply / discharge unit 13 is located on both sides of the intake passage 31 and the exhaust passages 32 and 32 that are located on both sides of the intake passage 31 and communicate with the exhaust communication portions 21a and 21a of the upper cover 21, respectively. Are unitized and attached to the rear and upper parts of the battery case 12.
- the supply / discharge unit 13 is also disposed in the underfloor space S in the same manner as the battery case 12.
- an intake port 33 that is an inlet of the intake passage 31 is located in front of the supply / discharge unit 13, and is open toward the front of the vehicle.
- a suction cooling fan (not shown) is mounted inside the exhaust passages 32 and 32, and an exhaust port 35 (only one is shown) that is an outlet of the exhaust passages 32 and 32 is provided at the rear of the supply / exhaust unit 13. Located in the vehicle width direction outside.
- the cooling air taken in from the intake port 33 is supplied to the cooling space C from the intake communication portion 21b of the upper cover 21 through the intake passage 31, and conversely, the cooling air from the cooling space C is supplied to the upper cover 21.
- the heat sink assembly 23 provided in the battery case 12 includes an upper plate 41, a heat sink 42, and a lower plate 43 that are arranged in this order from above, and an upper surface 41 a of the upper plate 41 is the upper.
- a battery housing space M is formed facing the back surface 21c of the cover 21 (see FIG. 1).
- a rectangular frame 44 is attached to the upper surface 41a of the upper plate 41, and a plurality of batteries 11 are mounted.
- a pair of openings 41b and 41b are formed on both sides in the width direction (see also FIG. 6A).
- an opening 41c that communicates with the intake communication portion 21b of the upper cover 21 is formed at the rear end portion of the upper plate 41 at the center in the width direction, and the exhaust communication portions 21a and 21a of the upper cover 21 are formed on both sides in the width direction.
- a pair of communication openings 41d and 41d are formed.
- the lower plate 43 has substantially the same shape as the upper plate 41, and forms a cooling space C by the lower surface 41e of the upper plate 41 and the upper surface 43a of the lower plate 43 (see FIG. 1).
- openings 43b and 43b are formed at positions corresponding to the openings 41b and 41b of the upper plate 41 (see also FIG. 6B), and 12V / DC housings 46 and 46 are assembled respectively. .
- the 12V / DC housings 46 and 46 are exposed to the cooling space C, and access to a 12V battery (not shown) housed together with the battery 11 in the battery housing space M from the outside. Configured to be possible.
- a pair of openings 41b and 41b formed in the upper plate 41 are closed by 12V / DC housings 46 and 46, and a battery formed by the upper surface 41a of the upper plate 41 and the rear surface 21c of the upper cover 21.
- the accommodation space M, and the cooling space C formed by the lower surface 41e of the upper plate 41 and the upper surface 43a of the lower plate 43 do not communicate with each other and form independent spaces.
- a heat sink 42 is provided in the cooling space C formed by the lower surface 41e of the upper plate 41 and the upper surface 43a of the lower plate 43.
- the heat sink 42 is made of, for example, stainless steel, and as shown in FIG. 5, a plurality of convex portions 52 and concave portions 53 are continuously formed in a wave shape.
- the contact area with the cooling air can be increased.
- the welding spot mentioned later is ensured by making the upper surface of the convex part 52 and the lower surface of the recessed part 53 into a flat surface.
- the heat sink 42 and the upper plate 41 are firmly bonded by welding the lower surface 41e of the upper plate 41 and the convex portion 52 of the heat sink 42 in contact with the lower surface 41e of the upper plate 41.
- Reference numeral 61 represents a welding spot.
- the heat sink 42 and the lower plate 43 are welded to the upper surface 43a of the lower plate 43 and the recess 53 of the heat sink 42 in contact with the upper surface 43a of the lower plate 43, as shown in FIG. It is firmly joined.
- Reference numeral 62 represents a welding spot.
- the welding area between the upper plate 41 and the heat sink 42 is larger than the welding area between the lower plate 43 and the heat sink 42.
- the welding between the lower plate 43 and the heat sink 42 increases the rigidity by joining both members, whereas the welding between the upper plate 41 and the heat sink 42 increases the rigidity by joining both members.
- the purpose is to increase the thermal conductivity between the upper plate 41 and the heat sink 42 in addition to the increase.
- the heat transfer area is larger on the upper plate 41 side than on the lower plate 43 side.
- the cooling air taken from the air inlet 33 of the supply / discharge unit 13 contacts the heat sink 42 to cool the heat sink 42, whereby the battery 11 is cooled via the upper plate 41. Thereafter, the air is guided to the exhaust passages 32, 32 of the supply / discharge unit 13 through a pair of openings 41 d, 41 d formed in the upper plate 41.
- the under cover 22 is fastened with bolts 66 so as to cover the entire lower surface of the lower plate 43.
- a nut 67 is fixed in advance to the lower plate 43 at a position where the bolt 66 is inserted.
- the bolt 66 is screwed into the nut 67 from the lower surface side of the under cover 22, so that the under cover 22 is attached to the lower plate 43.
- the upper cover 21 is fixed to the peripheral portions of the upper plate 41 and the lower plate 43 with bolts (not shown).
- the battery unit 10 configured in this manner is fixed to the vehicle body before the under cover 22 is fastened to the lower plate 43 with the bolts 66.
- FIG. 7 shows a frame structure 70 that forms a skeleton of the lower part of the vehicle body, and a battery unit 10 that is attached to the frame structure 70.
- the floor panel FP is fixed above the frame structure 70 by welding.
- the frame structure 70 includes a pair of left and right side members 71, 71 extending in the front-rear direction of the vehicle body, and cross members 72, 73, 74 extending in the vehicle width direction.
- the cross members 72, 73, 74 are fixed to predetermined positions of the side members 71, 71 by welding.
- Fastening portions 75a and 75a are provided on the side members 71 and 71 between the front cross member 72 and the central cross member 73, respectively.
- the central cross member 73 is provided with fastening portions 75b, 75b, 75b between the side members 71, 71.
- Fastening portions 75c and 75c are provided on the side members 71 and 71 between the central cross member 73 and the rear cross member 74, respectively.
- the rear cross member 74 is provided with fastening portions 75d and 75d at both ends.
- Support brackets 81, 82, 83 extending in the vehicle width direction are arranged on the lower surface 43c of the lower plate 43 so as to protrude from both sides of the lower plate 43, and at both ends of the support brackets 81, 82, 83, A pair of bolt fastening holes 84, 84 are provided respectively.
- the front support bracket 81 is fastened to the fastening portion 75a by the bolt 85
- the center support bracket 82 is fastened to the fastening portion 75c by the bolt 85
- the rear support bracket 83 is fastened to the fastening portion 75d by the bolt 85.
- the front support bracket 81 has a plurality of fastening holes 88 formed between the bolt fastening holes 84 at both ends in the vehicle width direction, and is fastened to the lower plate 43 with bolts 89.
- the lower plate 43 is formed with three fastening holes 43d, 43d, 43d in the vehicle width direction at positions corresponding to the central cross member 73.
- the fastening holes 43d, 43d, 43d on the lower surface 43c of the lower plate 43 are formed.
- a substantially rectangular rigid plate 93 is provided around the periphery.
- the heat sink 42 has through holes (not shown) at positions corresponding to the fastening holes 43d, 43d, 43d of the lower plate 43.
- Fastening holes 41f, 41f, 41f are formed in the upper plate 41 at positions corresponding to the fastening holes 43d, 43d, 43d of the lower plate 43, and around the fastening holes 41f, 41f, 41f.
- Each includes a disk-shaped cup 90 and a hollow collar 91 positioned on the cup 90.
- the upper cover 21 is formed with a recess 21e for accommodating the central cross member 73 at a position corresponding to the central cross member 73, and a fastening hole (not shown) at a position corresponding to the fastening holes 43d, 43d, 43d of the lower plate 43. Is formed. Then, the bolt 95 is inserted into the fastening holes 43d, 43d, 43d via the rigid plate 93 from the lower surface 43c side of the lower plate 43, so that the bolt 95 passes through the through-hole of the heat sink 42 and the collar 90. And is fixed to the fastening portion 75b of the central cross member 73.
- the lower plate 43 is fixed to the frame structure 70 of the vehicle body, so that the battery unit 10 is supported in the underfloor space S located below the floor panel FP so as to be substantially parallel to the ground. Therefore, the battery case 12 can be securely fixed to the vehicle body as compared with the case where the upper plate 41 is fixed to the vehicle body, and the heat sink 42 and the lower plate 43 can be prevented from peeling from the upper plate 41.
- At least one of the bolts 66 that fasten the lower plate 43 and the under cover 22 is preferably configured as a drain bolt 68.
- the lower plate 43 to which the drain bolt 68 is fixed is formed with a recessed recess 43f accommodated in the recess 22b formed in the under cover 22, A nut 67 is fixed in the reservoir 43f. Therefore, even if a fluid such as water enters the cooling space C, the fluid such as water is accumulated in the storage portion 43f. Then, by removing the drain bolt 68 from the nut 67, the fluid stored in the storage portion 43f can be discharged from the bolt fastening hole 22a of the under cover 22 to the outside of the battery unit 10.
- the cooling space C has a negative pressure with respect to the intake port 33 by a cooling fan (not shown) provided in the exhaust passages 32, 32 of the supply / exhaust unit 13. Therefore, external air is taken in as cooling air from the intake port 33, and the taken-in cooling air passes through the intake passage 31, passes through the intake communication portion 21 b of the upper cover 21, and the opening 41 c of the upper plate 41, thereby cooling space C. To be supplied.
- a cooling fan not shown
- the cooling air that has flowed into the cooling space C contacts the heat sink 42 to cool the battery 11 via the welding spot 61 of the upper plate 41.
- the cooling air passes through a pair of openings 41d and 41d formed in the upper plate 41 and is led to the exhaust communication portions 21a and 21a of the upper cover 21 and the exhaust passages 32 and 32 of the supply / exhaust unit 13. 35 and 35 are discharged.
- this invention is not limited to embodiment mentioned above, A deformation
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Abstract
Description
バッテリ(例えば、後述の実施形態のバッテリ11)と、
該バッテリを収容し、フロアパネル(例えば、後述の実施形態のフロアパネルFP)の下方に配置されるバッテリケース(例えば、後述の実施形態のバッテリケース12)と、を備え、
吸気口(例えば、後述の実施形態の吸気口33)から冷却風を導入して前記バッテリを冷却する車両用バッテリユニット(例えば、後述の実施形態のバッテリユニット10)であって、
前記バッテリケース内において、前記吸気口に連通する冷却空間(例えば、後述の実施形態の冷却空間C)が、前記バッテリを収容するバッテリ収容空間(例えば、後述の実施形態のバッテリ収容空間M)とは、別空間に形成されていることを特徴とする。
前記冷却空間は、前記バッテリを上面に搭載するアッパープレート(例えば、後述の実施形態のアッパープレート41)と、ロアプレート(例えば、後述の実施形態のロアプレート43)と、前記アッパープレートと前記ロアプレートとの間に配置されるヒートシンク(例えば、後述の実施形態のヒートシンク42)と、を備えることを特徴とする。
前記アッパープレートと前記ヒートシンク、及び、前記ロアプレートと前記ヒートシンクは、それぞれ溶接により接合されていることを特徴とする。
前記アッパープレートと前記ヒートシンクとの溶接面積は、前記ロアプレートと前記ヒートシンクとの溶接面積より大きいことを特徴とする。
前記ロアプレートが、車体に固定されることを特徴とする。
前記バッテリケースは、前記冷却空間と前記バッテリ収容空間を内部に有するアッパーカバー(例えば、後述の実施形態のアッパーカバー21)と、アンダーカバー(例えば、後述の実施形態のアンダーカバー22)と、を備え、
前記アンダーカバーは、前記ロアプレートにボルト(例えば、後述の実施形態のボルト66、ドレンボルト68)で締結されることを特徴とする。
前記吸気口は、前記バッテリケースの後部、且つ、上部に位置し、前方に向かって開口することを特徴とする。
前記吸気口は、前記バッテリケースと前記フロアパネルとの間に位置することを特徴とする。
前記吸気口と、前記冷却風を排出する排気口(例えば、後述の実施形態の排気口35)とを有する給排ユニット(例えば、後述の実施形態の給排ユニット13)が、前記バッテリケースに取り付けられていることを特徴とする。
即ち、本発明は、バッテリ収容空間Mと冷却空間Cとが、バッテリケース12内で別空間に形成されている限り、任意の構成を採用することができる。
11 バッテリ
12 バッテリケース
13 給排ユニット
21 アッパーカバー
22 アンダーカバー
33 吸気口
35 排気口
41 アッパープレート
42 ヒートシンク
43 ロアプレート
FP フロアパネル
C 冷却空間
M バッテリ収容空間
Claims (9)
- バッテリと、
該バッテリを収容し、フロアパネルの下方に配置されるバッテリケースと、を備え、
吸気口から冷却風を導入して前記バッテリを冷却する車両用バッテリユニットであって、
前記バッテリケース内において、前記吸気口に連通する冷却空間が、前記バッテリを収容するバッテリ収容空間とは、別空間に形成されていることを特徴とする車両用バッテリユニット。 - 前記冷却空間は、前記バッテリを上面に搭載するアッパープレートと、ロアプレートと、前記アッパープレートと前記ロアプレートとの間に配置されるヒートシンクと、を備えることを特徴とする請求項1に記載の車両用バッテリユニット。
- 前記アッパープレートと前記ヒートシンク、及び、前記ロアプレートと前記ヒートシンクは、それぞれ溶接により接合されていることを特徴とする請求項2に記載の車両用バッテリユニット。
- 前記アッパープレートと前記ヒートシンクとの溶接面積は、前記ロアプレートと前記ヒートシンクとの溶接面積より大きいことを特徴とする請求項3に記載の車両用バッテリユニット。
- 前記ロアプレートが、車体に固定されることを特徴とする請求項2~4のいずれか1項に記載の車両用バッテリユニット。
- 前記バッテリケースは、前記冷却空間と前記バッテリ収容空間を内部に有するアッパーカバーと、アンダーカバーと、を備え、
前記アンダーカバーは、前記ロアプレートにボルトで締結されることを特徴とする請求項2~5のいずれか1項に記載の車両用バッテリユニット。 - 前記吸気口は、前記バッテリケースの後部、且つ、上部に位置し、前方に向かって開口することを特徴とする請求項1~6のいずれか1項に記載の車両用バッテリユニット。
- 前記吸気口は、前記バッテリケースと前記フロアパネルとの間に位置することを特徴とする請求項1~7のいずれか1項に記載の車両用バッテリユニット。
- 前記吸気口と、前記冷却風を排出する排気口とを有する給排ユニットが、前記バッテリケースに取り付けられていることを特徴とする請求項1~8のいずれか1項に記載の車両用バッテリユニット。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013544228A JP5690951B2 (ja) | 2011-11-14 | 2012-11-07 | 車両用バッテリユニット |
| US14/357,265 US9812746B2 (en) | 2011-11-14 | 2012-11-07 | Vehicle battery unit |
| CN201280054227.3A CN103917394B (zh) | 2011-11-14 | 2012-11-07 | 车辆用蓄电池单元 |
| EP12849261.8A EP2781391B1 (en) | 2011-11-14 | 2012-11-07 | Vehicle battery unit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-248900 | 2011-11-14 | ||
| JP2011248900 | 2011-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013073432A1 true WO2013073432A1 (ja) | 2013-05-23 |
Family
ID=48429495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2012/078845 Ceased WO2013073432A1 (ja) | 2011-11-14 | 2012-11-07 | 車両用バッテリユニット |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9812746B2 (ja) |
| EP (1) | EP2781391B1 (ja) |
| JP (1) | JP5690951B2 (ja) |
| CN (1) | CN103917394B (ja) |
| WO (1) | WO2013073432A1 (ja) |
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- 2012-11-07 EP EP12849261.8A patent/EP2781391B1/en not_active Not-in-force
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- 2012-11-07 CN CN201280054227.3A patent/CN103917394B/zh not_active Expired - Fee Related
- 2012-11-07 WO PCT/JP2012/078845 patent/WO2013073432A1/ja not_active Ceased
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015224027A (ja) * | 2014-05-26 | 2015-12-14 | ドクター エンジニール ハー ツェー エフ ポルシェ アクチエンゲゼルシャフトDr. Ing. h.c.F. Porsche Aktiengesellschaft | 自動車用床下ユニット |
| CN105270150A (zh) * | 2014-06-11 | 2016-01-27 | F·波尔希名誉工学博士公司 | 用于机动车辆的车身底部单元 |
| JP2018501603A (ja) * | 2014-12-04 | 2018-01-18 | エルジー・ケム・リミテッド | 電池パック |
| KR20170010727A (ko) * | 2015-07-20 | 2017-02-01 | 독터. 인제니어. 하.체. 에프. 포르쉐 악티엔게젤샤프트 | 배터리 장치 및 방법 |
| JP2017027938A (ja) * | 2015-07-20 | 2017-02-02 | ドクター エンジニール ハー ツェー エフ ポルシェ アクチエンゲゼルシャフトDr. Ing. h.c. F. Porsche Aktiengesellschaft | バッテリ装置および方法 |
| KR101977442B1 (ko) | 2015-07-20 | 2019-05-10 | 독터. 인제니어. 하.체. 에프. 포르쉐 악티엔게젤샤프트 | 배터리 장치 및 방법 |
| JP2018532243A (ja) * | 2015-11-05 | 2018-11-01 | エルジー・ケム・リミテッド | 補強支持部材を含んでいる電池パック |
| JP2017196958A (ja) * | 2016-04-26 | 2017-11-02 | トヨタ自動車株式会社 | 車両のバッテリ搭載構造 |
| CN107437596A (zh) * | 2016-05-25 | 2017-12-05 | 福特全球技术公司 | 密封的电池组设计 |
| JP2019531955A (ja) * | 2016-08-31 | 2019-11-07 | ビーワイディー カンパニー リミテッド | 自動車用トレイアセンブリ、自動車用バッテリパック、及び自動車 |
| JP2020044880A (ja) * | 2018-09-14 | 2020-03-26 | トヨタ自動車株式会社 | 電動車両の下部構造 |
| JP7091966B2 (ja) | 2018-09-14 | 2022-06-28 | トヨタ自動車株式会社 | 電動車両の下部構造 |
| JP2020087912A (ja) * | 2018-11-15 | 2020-06-04 | 寧徳時代新能源科技股▲分▼有限公司Contemporary Amperex Technology Co., Limited | 電池パックに用いられる筐体及び電池パック |
| US11043715B2 (en) | 2018-11-15 | 2021-06-22 | Contemporary Amperex Technology Co., Limited | Casing for battery pack and battery pack |
| US11101519B2 (en) | 2018-11-15 | 2021-08-24 | Contemporary Amperex Technology Co., Limited | Casing for battery pack and battery pack |
| US11495861B2 (en) | 2018-11-15 | 2022-11-08 | Contemporary Amperex Technology Co., Limited | Casing for battery pack and battery pack |
| US11949079B2 (en) | 2018-11-15 | 2024-04-02 | Contemporary Amperex Technology Co., Limited | Casing for battery pack and battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103917394B (zh) | 2016-08-17 |
| JPWO2013073432A1 (ja) | 2015-04-02 |
| US20140315064A1 (en) | 2014-10-23 |
| US9812746B2 (en) | 2017-11-07 |
| EP2781391A1 (en) | 2014-09-24 |
| EP2781391B1 (en) | 2018-05-23 |
| JP5690951B2 (ja) | 2015-03-25 |
| EP2781391A4 (en) | 2015-07-22 |
| CN103917394A (zh) | 2014-07-09 |
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