WO2020161973A1 - Véhicule électrique et unité batterie - Google Patents

Véhicule électrique et unité batterie Download PDF

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Publication number
WO2020161973A1
WO2020161973A1 PCT/JP2019/043615 JP2019043615W WO2020161973A1 WO 2020161973 A1 WO2020161973 A1 WO 2020161973A1 JP 2019043615 W JP2019043615 W JP 2019043615W WO 2020161973 A1 WO2020161973 A1 WO 2020161973A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
introduction
passage forming
vehicle body
forming member
Prior art date
Application number
PCT/JP2019/043615
Other languages
English (en)
Japanese (ja)
Inventor
郁夫 原
吉田　直樹
慎司 古田
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 JP2020570369A priority Critical patent/JP7165757B2/ja
Priority to CN201980090223.2A priority patent/CN113348130B/zh
Publication of WO2020161973A1 publication Critical patent/WO2020161973A1/fr

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Classifications

    • 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
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J9/00—Containers specially adapted for cycles, e.g. panniers or saddle bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J99/00—Subject matter not provided for in other groups of this subclass
    • 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
    • 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
    • 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
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H01M10/6571—Resistive heaters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • 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
    • 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 an electric vehicle and a battery unit.
  • Patent Document 1 An electric motorcycle driven by a mobile battery is known.
  • An object of the present invention is to provide a technique for cooling a mobile battery more efficiently.
  • An electric vehicle comprising a vehicle body and a battery unit detachably attached to the vehicle body,
  • the battery unit is A battery cell, A battery case accommodating the battery cell;
  • a battery side electrical connection member capable of taking out the electric power of the battery cell,
  • the vehicle body is A vehicle-side electric connection member connectable with the battery-side electric connection member,
  • a passage forming member that forms an introduction passage for the fluid and is capable of communicating with the introduction portion when the battery unit is attached to the vehicle body.
  • the mobile battery can be cooled more efficiently.
  • FIG. 3 is a schematic diagram showing a configuration of an electrode portion provided on the vehicle body side and the periphery thereof.
  • the figure which shows the structure of the introduction part before communication The figure which shows the structure of the introduction part of a communicating state.
  • the schematic diagram showing the composition of the electrode part and its circumference provided in the vehicle body side concerning a second embodiment.
  • III-III sectional view taken on the line of the electrode part which concerns on 2nd embodiment in a retracted position.
  • the figure explaining the state where the ventilation capacity of an introduction part reduces.
  • the figure which shows the structure of the introduction part before communication which concerns on other embodiment.
  • transducing part of the communication state which concerns on other embodiment.
  • FIG. 1 is a right side view showing a configuration of a saddle riding type electric vehicle 1 according to the first embodiment.
  • an X direction corresponding to the vehicle front-rear direction, a Y direction corresponding to the vehicle width direction or the vehicle body left-right direction, and a Z direction corresponding to the vehicle body up-down direction are shown.
  • expressions such as front/rear, side (left/right), and upper/lower indicate relative positional relationships with respect to the vehicle body.
  • the electric vehicle 1 includes a vehicle body 100 and a mobile battery unit 120 that is detachably attached to the vehicle body 100.
  • the electric vehicle 1 is a motorcycle that allows a driver (rider) to ride over the vehicle body 100.
  • the vehicle body 100 includes front wheels 101 and rear wheels 102.
  • the vehicle body 100 includes a seat 103 on which a driver can sit.
  • the seat 103 is provided so as to be openable and closable for attachment and detachment of the mobile battery unit 120.
  • the outer shape of the vehicle body 100 and the seat 103 are indicated by broken lines in order to explain the internal structure of the electric vehicle 1.
  • the vehicle body 100 includes a head pipe 104, a main frame 105, a seat frame 106, a down frame 107, a rear frame 108, a pivot frame 109, and a swing arm 110.
  • the vehicle body 100 further includes a handlebar 111 and a front fork 112.
  • the handlebar 111 is rotatably supported by the head pipe 104 above the front of the vehicle body 100.
  • the handlebar 111 is provided with an accelerating operator (accelerator grip), a braking operator (brake lever), etc., and the driver can perform acceleration, braking, etc. of the electric vehicle 1 using these operators. ..
  • the front fork 112 rotatably supports the front wheel 101 below the front portion of the vehicle body 100, and is rotatably supported together with the handlebar 111 by the head pipe 104. The driver can steer by changing the direction of the front wheels 101 via the front fork 112 by rotating the handlebar 111.
  • the main frame 105, the seat frame 106, the down frame 107, the rear frame 108, the pivot frame 109, and the swing arm 110 are left and right, respectively. It is provided in a pair.
  • the pair of left and right main frames 105 are extended downward from the rear part of the vehicle body while being separated from the head pipe 104 in the left and right directions.
  • the seat frame 106 extends from the center of the main frame 105 toward the upper rear part of the vehicle body and supports a load applied to the seat 103.
  • the down frame 107 is provided below the main frame 105 so as to be separated from the head pipe 104 in the left and right directions, and extends downward toward the rear part of the vehicle body, and further extends toward the upper rear part of the vehicle body to be connected to the seat frame 106. ..
  • the rear frame 108 is installed between the seat frame 106 and the down frame 107, and can support a load applied to the seat 103 together with the seat frame 106.
  • the head pipe 104, the main frame 105, the seat frame 106, the down frame 107, the rear frame 108, and the pivot frame 109 described above may be collectively referred to as a vehicle body frame.
  • Various components of the vehicle body 100 are mainly held in any part of the body frame.
  • a reinforcing material such as a truss frame
  • a reinforcing material for improving strength may be additionally installed on the vehicle body frame.
  • the pivot frame 109 is provided below the down frame 107 so that the swing arm 110 can swing.
  • the swing arm 110 rotatably supports the rear wheel 102.
  • the above-mentioned vehicle body structure is only an example, and some modifications/modifications may be added to the above structure so as to be compatible with various vehicle types.
  • the main frame 105, the seat frame 106, the down frame 107, and the rear frame 108 are provided in a pair on the left and right, but as another embodiment, some/all of these are provided on the vehicle body.
  • a single unit may be provided at the center of 100 in the vehicle width direction.
  • the vehicle body 100 further includes an electric motor 121 and a control device 122.
  • the electric motor 121 is supported on the axle of the rear wheel 102 at the rear end of the swing arm 110.
  • the electric motor 121 generates power (rotation) based on the electric power of the mobile battery unit 120 to rotate the rear wheel 102.
  • a known motor such as a three-phase induction motor may be used.
  • the electric motor 121 may be expressed as a motor unit, a power unit, or the like, which additionally includes a speed reducer. It is also possible to employ a configuration in which the electric motor 121 is supported by the vehicle body frame and the power of the electric motor 121 is transmitted to the rear wheels via a chain, a sprocket, and the like.
  • the control device 122 is fixed to the vehicle body frame by fasteners or the like, and is arranged between the pair of left and right down frames 107 in this embodiment.
  • the control device 122 has a function of converting a DC voltage into an AC voltage and is also referred to as a PDU (power drive unit) or the like, or further has a function of converting an AC voltage into a DC voltage, a function of converting a voltage level, and the like. It is also called a PCU (power control unit).
  • the control device 122 converts the electric power received from the mobile battery units 120a and 120b via the wire harnesses 91a and 91b into a predetermined mode, and supplies the electric power to the electric motor 121 via the wire harness 92 to supply the electric motor.
  • the drive control of 121 is performed.
  • the control device 122 can also charge the mobile battery unit 120 using the electric power generated by the regenerative braking of the electric motor 121.
  • the wire harnesses 91a and 91b are simply referred to as "wire harness 91" unless otherwise distinguished.
  • a rechargeable secondary battery is used for the mobile battery units 120a and 120b, and examples thereof include a lithium ion battery and a nickel hydride battery.
  • two mobile battery units 120a and 120b are shown, but the number of mobile battery units may be one or three or more.
  • the mobile battery units 120a and 120b are simply referred to as “mobile battery unit 120" unless otherwise distinguished.
  • the mobile battery unit 120 is detachably fixed to the vehicle body frame, and is arranged between the pair of left and right seat frames 106, the down frame 107 and/or the rear frame 108 in the present embodiment.
  • the attachment/detachment of the mobile battery unit 120 is performed at the opening of the seat 103 with the seat 103 opened.
  • a user a driver, an owner of the electric vehicle 1, a person who performs maintenance of the electric vehicle 1, or the like
  • the rotation shaft of the seat 103 is provided in the front portion of the seat 103.
  • ⁇ Battery unit configuration> 2 and 3 are schematic views showing the configuration of the mobile battery unit 120, FIG. 2 shows a perspective view, and FIG. 3 shows a bottom view.
  • the mobile battery unit 120 includes a battery case 1200, a battery part 1201, an electrode part 1202, a grip part 1203, a fastening part 1204, an introducing part 150, a discharging part 151, and a hole 1206.
  • the battery case 1200 is a substantially rectangular parallelepiped casing that defines the outer shape of the mobile battery unit 120, and is made of, for example, a resin material.
  • the battery unit 1201 is housed inside the battery case 1200 and stores electric power for driving the electric motor 121 and the like.
  • the battery unit 1201 includes one or a plurality of battery cells.
  • the electrode part 1202 is an electric connection member (battery-side electric connection member) provided on the bottom surface of the battery case 1200 and capable of taking out the electric power of the battery part 1201.
  • the electrode part 1202 includes one or more electrodes or terminals.
  • One end of the above-mentioned wire harness 91 (see FIG. 1) is connected to this electrode portion 1202.
  • the grip portion 1203 is provided on the upper surface of the battery case 1200 and can be gripped by the user.
  • the user removes (carries) the mobile battery unit 120 from the vehicle body 100 by using the grip portion 1203, mounts the mobile battery unit 120 on the vehicle body 100, or replaces it with another mobile battery unit 120. be able to.
  • the introduction unit 150 is provided on the bottom surface of the battery case 1200, and introduces the temperature adjusting fluid of the battery unit 1201 into the battery case 1200.
  • the introduction part 150 includes an introduction opening 1501 for introducing a fluid and an opening/closing mechanism 1502 capable of opening/closing the introduction opening 1501.
  • the discharge part 151 is provided on the bottom surface of the battery case 1200 and discharges the fluid that has flowed into the battery case 1200 from the introduction part 150.
  • the discharge portion 151 has a discharge opening 1511 and an opening/closing mechanism 1512 that have the same configurations as the introduction opening 1501 and the opening/closing mechanism 1502, respectively.
  • the electrode portion 1202, the introduction opening 1501 and the discharge opening 1511 have a positional relationship such that the electrode portion 911 is arranged between them in the direction connecting the introduction opening 1501 and the discharge opening 1511. There is.
  • the configurations of the introduction opening 1501, the discharge opening 1511 and the opening/closing mechanisms 1502 and 1512 will be described later.
  • the hole 1206 is used for connecting the electrode portions 1202 to the electrode portions 911 a and 911 b of the wire harnesses 91 a and 91 b (see FIG. 4, hereinafter simply referred to as “electrode portion 911” unless otherwise specified).
  • This is a positioning hole for positioning the electrode portions 911a and 911b with respect to 1202.
  • FIG. 4 is a schematic diagram showing the configuration of the electrode unit 911 provided on the vehicle body 100 side and its surroundings.
  • the support member 914 supports the electrode support member 915 introducing pipe 130 and the discharge pipe 131, respectively, and the electrode support member 915 further supports the electrode portion 911 and the guide member 912.
  • the electrode part 911 is an electric connection member (vehicle-side electric connection member) on the electric vehicle 1 side that can be connected to the electrode part 1202 of the mobile battery unit 120. By connecting these, the electric power stored in the battery unit 1201 is supplied to the electric motor 121, the control device 122, and the like via the wire harness 91.
  • the electrode portion 911 includes one or more electrodes or terminals, and in the case of the present embodiment, a plurality of terminal pins 9111 are arranged side by side in the vehicle width direction.
  • the guide member 912 is a member for aligning when connecting the electrode portion 911 to the electrode portion 1202, can be inserted into the hole 1206, and is arranged on both outer sides of the electrode portion 911 in the vehicle width direction. ..
  • the guide member 912 projects in the same direction as the terminal pin 9111, and is provided so as to project from the terminal pin 9111 when viewed in the projecting direction.
  • the introduction pipe 130 is a pipe-shaped member for introducing a fluid from the introduction portion 150 of the mobile battery unit 120 into the battery case 1200.
  • the introduction pipe 130 is a passage forming member that forms an introduction passage for introducing a fluid from the electric vehicle 1 side into the mobile battery unit 120.
  • the introduction pipe 130 is inserted into the introduction portion 150, so that the introduction pipe 130 and the inside of the mobile battery unit 120 communicate with each other. Accordingly, the fluid can be supplied from the vehicle body 100 side to the inside of the mobile battery unit 120, and the battery unit 1201 can be directly cooled by the fluid. Therefore, the battery unit 1201 can be efficiently cooled.
  • the introduction pipe 130 which is on the upstream side by the flow of the fluid, is connected to each other by being inserted into the introduction opening 1501, so that the fluid passing through the introduction pipe 130 is introduced into the battery case 1200 without leakage. can do.
  • the end portion of the introduction tube 130 that is inserted into the introduction portion 150 projects in the same direction as the guide member 912 and the terminal pin 9111, and when viewed in the projecting direction, it projects more than the terminal pin 9111. Not not.
  • the discharge pipe 131 is a pipe-shaped member for discharging the fluid introduced into the mobile battery unit 120 from the introduction pipe 130. It can be said that the discharge pipe 131 is a passage forming member that forms a passage for discharging the fluid from the inside of the mobile battery unit 120 to the outside.
  • the discharge pipe 131 and the inside of the mobile battery unit 120 communicate with each other.
  • the end portion of the discharge pipe 131 that is inserted into the discharge portion 151 projects in the same direction as the guide member 912 and the terminal pin 9111, and when viewed in the projecting direction, it projects more than the terminal pin 9111. Not not.
  • the electrode portion 911, the guide member 912, the introduction pipe 130, and the discharge pipe 131 all project in the same direction. Therefore, the connecting direction of the electrode part 911 to the electrode 1202, the inserting direction of the hole 1206 of the guide member 912, the inserting direction of the introducing pipe 130 to the introducing part 150, and the inserting direction of the discharge pipe 131 to the discharging part 151 are all in the same direction. Is.
  • the electrode portion 911, the guide member 912, the introduction pipe 130, and the discharge pipe 131 are all directly or indirectly supported by the support member 914.
  • the support member 914 functions as a restriction member that restricts the relative positions of the electrode portion 911, the guide member 912, and the introduction tube 130. Therefore, the guide member 912 can align the electrode portion 911, the introduction tube 130, and the discharge tube 131 with respect to the mobile battery unit 120.
  • the fluid inside the mobile battery unit 120 is discharged by the discharge pipe 131, but a configuration without the discharge pipe 131 can also be adopted. In that case, the fluid may be directly discharged to the outside of the mobile battery unit 120 from the discharge opening 1511 of the discharge portion 151.
  • FIG. 5 is a schematic view showing a state in which the introduction pipe 130 and the discharge pipe 131 communicate with the introduction part 150 and the discharge part 151, respectively, and is a front cross-sectional view seen from the direction of the line III-III in FIG.
  • the arrows in the figure indicate the main flow directions of the fluid.
  • FIG. 5 is a schematic view, and hatching showing a cross section is omitted except for the battery unit 1201 in consideration of viewability.
  • the fluid introduced from the introduction pipe 130 is discharged from the discharge pipe 131 through the space between the battery case 1200 and the battery unit 1201.
  • the battery case 1200 and the battery part 1201 form a fluid passage P in the battery case 1200, and the fluid passes through the introduction pipe 130, the fluid passage P, and the discharge pipe 131 in this order.
  • the shape of the fluid passage P that is, the shape of the space between the battery case 1200 and the battery portion 1201 can be designed as appropriate.
  • a space may be provided between the battery case 1200 and the battery unit 1201 on all side surfaces.
  • the fluid introduced from the introduction unit 150 can cool all the surfaces of the battery unit 1201, and the battery unit 1201 can be cooled more effectively.
  • a through hole through which a fluid can pass may be formed in the battery unit 1201. Accordingly, the battery can be cooled not only from the outer surface but also from the inner side of the battery unit 1201, and the battery can be cooled more effectively.
  • a fan 170 for sending out a fluid is provided on the introduction passage formed by the introduction pipe 130. Thereby, a larger amount of fluid can be sent to the inside of the battery case 1200. Since the configuration of the fan 170 is well known, its description is omitted.
  • an end portion (not shown) different from the end portion of the introduction pipe 130 inserted into the introduction portion 150 may be arranged at a position where the traveling wind during traveling can be introduced. That is, the introduction pipe 130 may function as a duct that takes in traveling wind. Thereby, the fluid can be effectively introduced into the battery case 1200 during traveling.
  • the introduction pipe 130 is provided with a heater 171 for heating the fluid passing through the introduction pipe 130.
  • the battery unit 1201 may be deteriorated such as a decrease in battery capacity at a low temperature of 0° C. or lower. Therefore, by heating the fluid introduced by the heater 171 at a low temperature, the temperature of the battery unit 1201 can be raised and deterioration of the battery unit 1201 can be suppressed.
  • the heater 171 a well-known configuration such as an electric heater can be adopted.
  • FIG. 6A is a left side view showing a state where the electrode portion 911 is at the retracted position
  • FIG. 6B is a left side view showing a state where the electrode portion 911 is at the connecting position
  • 7A is a sectional view taken along the line III-III when the electrode portion 911 is in the retracted position
  • FIG. 7B is a sectional view taken along the line III-III when the electrode portion 911 is in the connected position. It should be noted that these figures are schematically shown for easy understanding of the description, and some of the configurations may be omitted. Further, in FIG. 7A and FIG. 7B, hatching showing a cross section is omitted except for the battery unit 1201 in consideration of visibility.
  • the electrode portion 911 is provided so that it can be displaced between the connection position and the retracted position by displacing the support member 914 in the protruding direction.
  • the connection position is a position where the mobile battery unit 120 is connected to the electrode portion 1202 of the mobile battery unit 120 when the mobile battery unit 120 is mounted on the vehicle body 100.
  • the retracted position is a position separated from the mobile battery unit 120 when the mobile battery unit 120 is mounted on the vehicle body 100.
  • the electrode portion 911 when the mobile battery unit 120 is removed from the vehicle body 100, the electrode portion 911 is located at the retracted position. Therefore, even when the mobile battery unit 120 is mounted on the vehicle body 100, the electrode portion 911 is in the retracted position, so that the electrode portion 911 collides with the mobile battery unit 120 due to the momentum of mounting, and the electrode portion 911 and the electrode portion 1202 are separated. It can be prevented from being damaged.
  • the mobile battery unit 120 is attached to the vehicle body 100 in a state of being inclined with respect to the vertical direction.
  • the electrode portion 911 is arranged on the bottom of the battery case 1200 so as to be offset from the central position of the bottom to one side. (Upper side of FIG. 3). Then, in a tilted state, that is, in a state in which the mobile battery unit 120 is attached to the vehicle body 100, one side thereof is located above the other side.
  • the electrode portion 911 is arranged on the upper side opposite to the lower side of the bottom portion of the battery case 1200 which is likely to collide with the vehicle body 100 side when the mobile battery unit 120 is attached to the vehicle body 100. Therefore, it is possible to prevent the electrode portion 911 from being damaged when it is attached.
  • the introduction pipe 130 and the discharge pipe 131 are provided so as to be freely displaceable between the communication position and the blocking position by displacing the support member 914 in the protruding direction.
  • the communication position is a position where the introduction pipe 130 and the introduction portion 150 communicate with each other and the discharge pipe 131 and the discharge portion 151 communicate with each other when the mobile battery unit 120 is attached to the vehicle body 100.
  • the cutoff position is a position where communication between the introduction pipe 130 and the introduction unit 150 and the communication between the discharge pipe 131 and the discharge unit 151 are cut off.
  • the introduction pipe 130 and the discharge pipe 131 are located at the cutoff position. Therefore, even when the mobile battery unit 120 is mounted on the vehicle body 100, the introduction pipe 130 and the discharge pipe 131 are in the blocking position, so that the introduction pipe 130 and the discharge pipe 131 collide with the mobile battery unit 120 due to the momentum of the mounting. It is possible to prevent these from being damaged.
  • the vehicle body 100 includes a displacement unit 180 capable of displacing the electrode portion 911.
  • the displacement unit 180 displaces the support member 914 that supports the electrode portion 911, the guide member 912, the introduction pipe 130, and the discharge pipe 131. Therefore, the displacement unit 180 displaces the electrode portion 911, the introduction pipe 130, and the discharge pipe 131 in conjunction with each other.
  • the displacement unit 180 displaces the electrode section 911, the introduction tube 130, and the discharge tube 131 described above.
  • the displacement unit 180 is a link mechanism including a lever 181, an arm 182, and a guide member 183.
  • the displacement unit 180 is supported by the vehicle body frame of the vehicle body 100, for example.
  • the lever 181 is provided so that the grip portion 1811 thereof is located above the mobile battery unit 120 when the mobile battery unit 120 is mounted on the vehicle body 100.
  • the side member 1812 of the lever 181 rotates about the rotation shaft 1813.
  • the connecting portion 1814 between the lever 181 and the arm 182 is displaced upward.
  • the connecting portion 1814 is, for example, a shaft member on which the lever 181 and the arm 182 are rotatably supported.
  • a side member 1812 is also provided on the right side of the mobile battery unit 120 in the vehicle width direction. 1811 is connected.
  • the arm 182 is rotatably connected to the lever 181 on the upper side, and is connected to the support member 914 and the connecting portion 1821 on the lower side.
  • the connecting portion 1821 is, for example, a shaft member that rotatably supports the arm 182 and the support member 914, respectively.
  • the guide member 183 is a member that restricts the movement of the connecting portion 1821.
  • the connecting portion 1821 is displaced along the guide groove 1831 of the guide member. Accordingly, the displacement of the support member 914 is limited to a direction substantially perpendicular to the bottom surface of the mobile battery unit 120, so that the electrode portion 911 can be more easily connected and the guide member 912, the introduction pipe 130, and the discharge pipe 131 can be connected. Can be inserted.
  • an arm 182 is also provided on the right side of the mobile battery unit 120 in the vehicle width direction, and a support member 914 is connected to the left and right arms 182. ing.
  • the terminal pin 9111 of the electrode portion 911, the guide member 912, and the introduction pipe 130 are the guide member 912, the terminal pin 9111, and the introduction pipe 130 (exhaust pipe 131 when viewed in the protruding direction thereof. ) Are projected in this order.
  • the guide member 912 is first inserted into the hole 1206, then the terminal pin 9111 is connected to the electrode portion 1202, and then the introduction pipe 130 (exhaust pipe 131) is inserted. It is inserted into the (ejection section 151).
  • the terminal pin 9111 of the electrode part 911 may be damaged if an attempt is made to connect the electrode part 1202 in a position displaced from the electrode part 1202.
  • the terminal pin 9111 of the electrode part 911 may require higher positioning accuracy at the time of connection as compared with the introduction pipe 130 (exhaust pipe 131).
  • the terminal pin 9111 after the positioning is performed by the guide member 912, the terminal pin 9111 can be connected with higher positioning accuracy by connecting the terminal pin 9111 before the introduction pipe 130 (exhaust pipe 131).
  • the support member 914 is supported via the floating mechanism 184.
  • the floating mechanism 184 is supported so that the position of the support member 914 can be adjusted in a direction parallel to the bottom surface of the mobile battery unit 120.
  • the floating mechanism 184 supports the support member 914 while allowing the movement in a direction parallel to the bottom surface of the battery case 1200 when an external force acts on the support member 914 by the elastic force of an elastic member such as a spring. There is.
  • This allows fine adjustment of the position of the support member 914 with respect to the mobile battery unit 120.
  • the guide member 912 is slightly displaced from the hole 1206, the guide member 912 is moved according to the position of the hole 1206 and then inserted.
  • the terminal pin 9111 and the introduction pipe 130 exhaust pipe 131
  • the electrode member 911 and the introduction pipe 130 are both supported by the support member 914, they can be displaced by the single displacement unit 180.
  • displacement units may be provided independently for the electrode portion 911 and the introduction pipe 130 (exhaust pipe 131).
  • the displacement unit 180 mechanically displaces the electrode portion 911 and the introduction pipe 130 (exhaust pipe 131) in accordance with the rotation of the lever 181. May be displaced.
  • FIG. 8A and 8B are diagrams showing a configuration of the introduction unit 150 (discharge unit 151), FIG. 8A shows a state before communication, and FIG. 8B shows a communication state.
  • the introduction part 150 includes an introduction opening 1501 and an opening/closing mechanism 1502.
  • the introduction opening 1501 is a circular opening, and is closed by the opening/closing mechanism 1502 when the introduction pipe 130 is not in communication.
  • the opening/closing mechanism 1502 includes a lid member 1502a and a shaft member 1502b that rotatably supports the lid member 1502a.
  • the lid member 1502a is pushed up by the introduction tube 130 to rotate about the shaft member 1502b, and opens the introduction opening 1501. Further, in the present embodiment, the lid member 1502a moves downward due to its own weight to close the introduction opening 1501 when the introduction tube 130 is pulled out. That is, the lid member 1502a opens the introduction opening 1501 when the introduction pipe 130 and the introduction portion 150 are in communication, and closes the introduction opening 1501 when they are not in communication. This can prevent foreign matter from entering the inside of the battery case 1200 when not communicating.
  • a biasing member such as a spring is further provided to bias the lid member 1502a in the direction of closing the introduction opening 1501. This allows the lid member 1502a to close the introduction opening 1501 more reliably when the introduction tube 130 is pulled out.
  • tubular portion 1503 is formed inside the mobile battery unit 120 of the introduction opening 1501 in the present embodiment, the tubular portion 1503 may not be provided.
  • the shaft member 1501b and the shaft member 1502b may be shared, and the lid member 1502a may be rotated in conjunction with the lid member 1501a being pushed up by the introduction pipe 130.
  • FIG. 9 is a schematic diagram showing the configuration of the electrode part 911 and its periphery according to the second embodiment
  • FIG. 10 is a front cross-sectional view of the mobile battery unit 120 according to the second embodiment. It is a figure corresponding to a III line sectional view.
  • the second embodiment is different from the first embodiment in that the guide member 912 and the introduction pipe 130 (exhaust pipe 131) in the first embodiment are also used.
  • the same components as those of the first embodiment may be designated by the same reference numerals and the description thereof may be omitted.
  • the electrode part 911, the introduction pipe 230, and the discharge pipe 231 are respectively supported by the support member 924. Further, the terminal pin 9111 of the electrode portion 911 and the introduction pipe 230 (discharge pipe 231) protrude in the same direction, and the introduction pipe 230 (discharge pipe 231) protrudes more than the terminal pin 9111 in the protruding direction. There is. With this configuration, the introduction pipe 230 and the discharge pipe 231 function as a guide member for positioning the electrode portion 911. As a result, the number of parts can be reduced. Further, since it is not necessary to provide a hole for the guide member for positioning on the bottom surface of the battery case 1200, it is possible to reduce the area of the area of the connecting portion of the bottom surface portion with the vehicle body 100 side.
  • FIG. 11 is a figure which shows the structure of the introducing
  • the fluid will be on the fluid passage.
  • the lid member 1502a may interfere with each other to reduce the air blowing capacity.
  • an opening is provided on the side surface of the introduction pipe 130 to discharge the fluid laterally, and the fluid passage is formed so as to wrap around from the back side (or the front side) of the drawing.
  • the blowing capacity is secured by forming it.
  • the electric vehicle (for example, 1) of the above embodiment An electric vehicle including a vehicle body (for example, 100) and a battery unit (for example, 120) detachably attached to the vehicle body,
  • the battery unit is A battery cell (for example 1201), A battery case (for example, 1200) accommodating the battery cell, A battery side electric connection member (for example, 1202) capable of taking out the electric power of the battery cell,
  • An introduction unit (for example, 150) that introduces a fluid for temperature control of the battery cells into the battery case
  • the vehicle body is A vehicle-side electric connection member (for example, 911) connectable with the battery-side electric connection member,
  • a passage forming member (for example, 130) that forms the introduction passage of the fluid and can communicate with the introduction portion when the battery unit is mounted on the vehicle body.
  • the battery cells can be directly cooled by the fluid. Therefore, the battery cells can be cooled more efficiently.
  • the introduction portion includes an introduction opening (for example, 1501) provided in the battery case,
  • the passage forming member communicates with the introduction portion by inserting a part of the passage forming member into the introduction opening.
  • the passage forming member that is on the upstream side in the traveling direction of the fluid communicates with each other by being inserted into the introduction opening, so that the fluid passing through the passage forming member is introduced into the battery case without leaking. It Therefore, more fluid can be supplied into the battery case, and the battery cells can be cooled more effectively.
  • the introduction unit has a lid member (for example, 1502a) capable of opening and closing the introduction opening,
  • the lid member is When the passage forming member and the introduction portion are in communication, open the introduction opening, The introduction opening is closed when the passage forming member and the introduction portion are in communication with each other.
  • the introduction opening is closed when the introduction portion and the passage forming member are not in communication with each other, it is possible to prevent foreign matter from entering the inside of the battery case.
  • the battery unit includes a discharge portion (for example, 150) that discharges the fluid in the battery case,
  • the discharge part includes a discharge opening (for example, 1501) provided in the battery case.
  • the provision of the discharge opening facilitates the circulation of the fluid inside the battery case. Therefore, the battery cells can be cooled more effectively.
  • a fan (for example, 170) that sends the fluid into the battery case is provided on the introduction passage of the passage forming member.
  • a heater (for example, 171) that heats the fluid is provided on the introduction passage of the passage forming member.
  • the battery cell can be warmed at a low temperature, and the deterioration of the battery can be suppressed.
  • the battery side electrical connection member is arranged between the introduction opening and the discharge opening in a direction connecting the introduction opening and the discharge opening.
  • the electrical connection member, the introduction opening and the discharge opening can be combined in a space-saving manner.
  • the battery case has a substantially rectangular parallelepiped shape
  • the battery unit is attached to the vehicle body in an inclined state
  • the battery-side electrical connection member is arranged at the bottom of the battery case so as to be offset from the central position of the bottom to one side, and the one side is positioned above the other side in the inclined state.
  • the passage forming member Provided so as to be freely displaceable between a communication position communicating with the introduction part and a blocking position blocking communication with the introduction part; When the battery unit is mounted on the vehicle body, the battery unit is displaced from the cutoff position to the communication position to communicate with the introduction portion.
  • the introduction unit and the passage forming member can be communicated with each other without moving the heavy battery unit.
  • the vehicle-side electrical connection member Provided so as to be displaceable between a connection position for connecting to the battery side electrical connection member and a retracted position separated from the battery side electrical connection member,
  • the passage forming member is displaced from the retracted position to the connection position in conjunction with the displacement of the passage forming member from the blocking position to the communication position.
  • the user can connect the battery side electrical connecting member and communicate the passage forming member with the same operation. ..
  • the battery case has a positioning hole (for example, 1206) that regulates the position of the passage forming member with respect to the introduction portion
  • the vehicle body has a positioning member (for example, 912) that can be inserted into the positioning hole, By inserting the positioning member into the positioning hole, the introduction portion and the passage forming member are aligned with each other.
  • the introduction portion and the passage forming member can be aligned.
  • the vehicle body further includes a restricting member (e.g., 914) that restricts a relative position between the passage forming member and the vehicle-side electrical connecting member,
  • the battery-side electrical connection member and the vehicle-side electrical connection member are aligned by aligning the introduction portion and the passage forming member with the positioning member and the positioning hole.
  • the vehicle-side electrical connection member and the passage forming member can be aligned at the same time.
  • the positioning member and the passage forming member are provided such that their positions with respect to the battery unit can be adjusted by a floating mechanism (for example, 184).
  • the positioning can be easily performed by the floating mechanism.
  • the vehicle-side electrical connection member is provided so that its position with respect to the battery unit can be adjusted by the floating mechanism.
  • the positioning can be easily performed by the floating mechanism.
  • the vehicle-side electrical connection member After the positioning member is inserted into the positioning hole, the vehicle-side electrical connection member is connected to the battery-side electrical connection member, and then the passage forming member communicates with the introduction portion.
  • the passage forming member functions as the positioning member.
  • the number of parts can be reduced, and the area of the region of the connecting portion between the battery unit and the vehicle body can be reduced.
  • the battery unit of the above embodiment A battery unit detachably attached to a vehicle body of an electric vehicle, A battery cell, A battery case accommodating the battery cell; A battery side electrical connection member capable of taking out the electric power of the battery cell, An introducing portion for introducing a fluid for temperature control of the battery cells into the battery case,
  • the vehicle body is provided with a passage forming member that forms an introduction passage of the fluid, The introduction portion can communicate with the passage forming member when attached to the vehicle body.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Combustion & Propulsion (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

Le véhicule électrique selon l'invention comprend une carrosserie de véhicule et une unité batterie, fixée de manière amovible à la carrosserie du véhicule. L'unité batterie comprend : un élément de batterie ; un boîtier de batterie qui contient la cellule de batterie ; un élément de connexion électrique côté batterie, capable d'extraire de l'énergie électrique de la cellule de batterie ; et une unité d'introduction, qui introduit un fluide dans le boîtier de batterie pour régler la température de la cellule de batterie. La carrosserie de véhicule comprend : un élément de connexion électrique côté véhicule, qui peut être connecté à l'élément de connexion électrique côté batterie ; et un élément de formation de passage, qui forme un passage d'introduction de fluide et peut communiquer avec l'unité d'introduction lorsque l'unité batterie est fixée à la carrosserie du véhicule.
PCT/JP2019/043615 2019-02-05 2019-11-07 Véhicule électrique et unité batterie WO2020161973A1 (fr)

Priority Applications (2)

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JP2020570369A JP7165757B2 (ja) 2019-02-05 2019-11-07 電動車両及びバッテリユニット
CN201980090223.2A CN113348130B (zh) 2019-02-05 2019-11-07 电动车辆以及电池单元

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CN113348130A (zh) 2021-09-03
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JP7165757B2 (ja) 2022-11-04

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