WO2020003835A1 - 車両用バッテリパック支持装置 - Google Patents

車両用バッテリパック支持装置 Download PDF

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Publication number
WO2020003835A1
WO2020003835A1 PCT/JP2019/020723 JP2019020723W WO2020003835A1 WO 2020003835 A1 WO2020003835 A1 WO 2020003835A1 JP 2019020723 W JP2019020723 W JP 2019020723W WO 2020003835 A1 WO2020003835 A1 WO 2020003835A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
battery pack
frame
side rail
spacer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2019/020723
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
直龍 熊谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
Daimler AG
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 Daimler AG filed Critical Daimler AG
Priority to CN201980042317.2A priority Critical patent/CN112292278B/zh
Priority to US17/255,338 priority patent/US11548363B2/en
Priority to EP19826469.9A priority patent/EP3795398B1/en
Publication of WO2020003835A1 publication Critical patent/WO2020003835A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/09—Means for mounting load bearing surfaces
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • 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
    • B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
    • 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
    • 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
    • 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
    • B60K2001/0455—Removal or replacement of the energy storages
    • B60K2001/0472—Removal or replacement of the energy storages from below
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B60Y2200/142—Heavy duty trucks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to a vehicle battery pack support device.
  • Patent Document 1 discloses a holding structure for holding a driving battery pack on a ladder frame of an electric truck.
  • the above-mentioned electric truck has a larger vehicle weight than a passenger car, so it is necessary to mount a large and large-capacity battery pack to secure a sufficient cruising distance.
  • the battery pack is suspended on the ladder frame by a support device connected to the outer surface of the ladder frame of the vehicle in the vehicle width direction.
  • such a supporting device in order to ensure sufficient reliability for supporting a large-sized battery pack, such a supporting device must be formed of a strong member, which may increase the weight.
  • a strong member which may increase the weight.
  • the support device since the distance between the side rails of the ladder frame on which the battery pack is suspended differs depending on the size of the vehicle, if the support device is designed and manufactured for each vehicle type, the cost of the support device may increase.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a battery for a vehicle that can cope with various vehicle classes, and that can reduce the weight and cost. It is to provide a pack support device.
  • a vehicle battery pack support device is a vehicle battery pack support device that suspends a battery pack on a side rail that constitutes a ladder frame of a vehicle, and is arranged in a grid on the outer surface of the side rail.
  • a frame-side bracket fixed by bolts at a plurality of bolt fastening portions, an elastic connection portion for elastically connecting the battery pack and the frame-side bracket, and an outer surface of the side rail and the frame-side bracket.
  • the vehicle battery pack supporting device suspends the battery pack on the ladder frame via the frame-side bracket connected to the outer surface of the side rail of the vehicle and the elastic connecting portion. At this time, a spacer having a width corresponding to the distance between the side rail and the frame side bracket is interposed between the side rail and the frame-side bracket. There is no need to change the configuration.
  • the spacer is provided with a plurality of columnar members for supporting the bolt around a bolt through hole through which the bolt fixed to the side rail passes, and the columnar member is integrally formed by a connecting portion. Therefore, the step of fixing the spacer to the side rail can be simplified as compared with the spacer provided separately for each bolt. Further, the spacer can secure the connection strength for suspending the heavy battery pack to the ladder frame in the columnar member and the connection portion, so that the other portion can be a hollow portion. Therefore, according to the battery pack support device for a vehicle according to the present invention, it is possible to reduce the weight and cost while supporting various vehicle models.
  • FIG. 1 is a top view schematically showing an overall configuration of a vehicle on which a vehicle battery pack support device according to the present invention is mounted. It is a perspective view which shows the structure and connection form of the support device which connects a side rail and a battery pack. It is a perspective view showing the structure of the spacer in a support apparatus. It is a rear view which shows typically the connection form of the support device which connects a side rail and a battery pack.
  • FIG. 1 is a top view schematically showing an overall configuration of a vehicle 1 on which a vehicle battery pack supporting device according to the present invention is mounted.
  • a vehicle 1 according to the present embodiment includes a ladder frame 10, a cab 20, a packing box 30, a wheel mechanism 40, a driving unit 50, a driving power supply unit 60, a battery pack 70, and a “vehicle battery”.
  • This is an electric truck including a plurality of support devices 80 as “pack support devices”.
  • FIG. 1 shows a top view when the cab 20 and the packing box 30 are seen through the top surface of the vehicle 1.
  • the vehicle 1 is assumed to be an electric vehicle including an electric motor (a motor 51 described later) as a driving source for traveling, but may be a hybrid vehicle further including an engine. Further, the vehicle 1 is not limited to an electric truck, and may be another commercial vehicle including a battery for driving the vehicle, such as an electric garbage truck.
  • the ladder frame 10 has a side rail 11 and a plurality of cross members 12.
  • the side rails 11 extend along the vehicle front-rear direction X of the vehicle 1 and include a left side rail 11L and a right side rail 11R arranged in parallel with each other in the vehicle width direction Y.
  • the plurality of cross members 12 connect the left side rail 11L and the right side rail 11R. That is, the ladder frame 10 constitutes a so-called ladder type frame.
  • the ladder frame 10 supports the cab 20, the packing box 30, the drive unit 50, the drive power supply unit 60, the battery pack 70, and other heavy objects mounted on the vehicle 1.
  • the cab 20 is a structure including a driver's seat (not shown), and is provided above a front portion of the ladder frame 10.
  • the packing box 30 is a structure on which luggage and the like conveyed by the vehicle 1 are stacked, and is provided above a rear portion of the ladder frame 10.
  • the wheel mechanism 40 includes left and right front wheels 41 located in front of the vehicle, a front axle 42 as an axle of the two front wheels 41, and two rear wheels 43 located behind and located on the left and right of the vehicle. , And a rear axle 44 as an axle of the rear wheel 43. Then, in the vehicle 1 according to the present embodiment, the driving force is transmitted so that the rear wheel 43 functions as a driving wheel, and the vehicle 1 runs.
  • the wheel mechanism 40 is suspended on the ladder frame 10 via a suspension mechanism (not shown), and supports the weight of the vehicle 1.
  • the drive unit 50 has a motor 51, a speed reduction mechanism 52, and a differential mechanism 53.
  • the motor 51 generates a driving force necessary for the vehicle 1 to travel when AC power is supplied from a driving power supply unit 60 described later.
  • the reduction mechanism 52 includes a plurality of gears (not shown), and reduces the rotational torque input from the motor 51 and outputs the reduced rotation torque to the differential mechanism 53.
  • the differential mechanism 53 distributes the power input from the speed reduction mechanism 52 to the left and right rear wheels 43. That is, the drive unit 50 transmits the driving force to the rear axle 44 via the speed reduction mechanism 52 and the differential mechanism 53 by reducing the driving torque of the motor 51 to a rotation speed suitable for traveling of the vehicle.
  • the drive unit 50 can cause the vehicle 1 to run by rotating the rear wheel 43 via the rear axle 44.
  • the driving power supply unit 60 is a so-called inverter, converts DC power supplied from the battery pack 70 into AC power, supplies the AC power to the motor 51, and controls the rotation speed of the motor 51 according to an accelerator operation on the vehicle 1. .
  • the battery pack 70 is a secondary battery that supplies electric power to the motor 51 as an energy source for running the vehicle 1.
  • the battery pack 70 includes a plurality of relatively large-capacity battery modules (not shown) for storing electric power required for the vehicle 1.
  • the battery pack 70 is disposed between the left side rail 11L and the right side rail 11R and across a space formed below the side rail 11, and is a plane perpendicular to the vehicle front-rear direction X.
  • the support device 80 is a connection member for suspending the battery pack 70 on the ladder frame 10 as described in detail later.
  • three support devices 80 are provided on each side of the ladder frame 10 in the vehicle width direction Y (a total of six).
  • the number of the supporting devices 80 can be appropriately changed according to the weight and the size of the battery pack 70.
  • FIG. 2 is a perspective view showing a configuration and a connection form of a support device 80 for connecting the side rail 11 and the battery pack 70. More specifically, FIG. 2 is a perspective view of one support device 80 connected to the left side rail 11L when viewed from diagonally forward left of the vehicle 1.
  • the side rail 11 has a shape in which a web 11w forming a plane perpendicular to the vehicle width direction Y and two flanges 11f forming a plane perpendicular to the vehicle height direction Z are continuous.
  • bolt fastening portions 11H as through holes for fixing bolts 11B for suspending various heavy objects to the vehicle 1 are formed in a grid pattern.
  • the support device 80 includes a frame-side bracket 81, a battery-side bracket 82, an elastic connecting portion 83, and a spacer 84.
  • the frame-side bracket 81 is a metal member that is connected to the outer surface of the side rail 11, that is, the web 11w by a plurality of bolts 11B. That is, the frame-side bracket 81 is connected to the outer side surface of the side rail 11 via the spacer 84 in a plane portion perpendicular to the vehicle width direction Y. The frame-side bracket 81 is connected to the elastic connecting portion 83 at a plane portion perpendicular to the vehicle height direction Z.
  • the battery-side bracket 82 is connected to the outer surface of the battery pack 70 in the vehicle width direction Y, and is a metal member for suspending the battery pack 70 outside the side rail 11 in the vehicle width direction Y.
  • the elastic connecting portion 83 includes a so-called rubber bush that elastically connects the frame-side bracket 81 and the battery-side bracket 82 vertically in the vehicle height direction Z and absorbs a stress caused by a relative displacement between the two.
  • the spacer 84 is a metal member interposed between the side rail 11 and the frame-side bracket 81 when the connection surfaces of the side rail 11 and the frame-side bracket 81 are separated from each other. Therefore, when the side rail 11 and the frame-side bracket 81 are not separated from each other, the spacer 84 becomes unnecessary.
  • the battery pack 70 is suspended on the side rail 11 via the support device 80 including the battery-side bracket 82, the elastic connecting portion 83, the frame-side bracket 81, and the spacer 84. You. For this reason, even when the side rail 11 is subjected to a stress due to torsion or bending as the vehicle 1 travels, the elastic connecting portion 83 may transmit the stress to the battery pack 70 due to the buffer effect. Can be reduced.
  • FIG. 3 is a perspective view showing the structure of the spacer 84 in the support device 80.
  • the spacer 84 includes a plurality of columnar members 90, connecting portions 91, and downward extending portions 94, respectively, and these portions are integrally formed by, for example, extruding aluminum.
  • the plurality of columnar members 90 are arranged on the XZ plane at intervals corresponding to the plurality of bolt fastening portions 11H formed in a grid on the web 11w of the side rail 11.
  • the plurality of columnar members 90 according to the present embodiment are arranged in a matrix of three in the vehicle longitudinal direction X and four in the vehicle height direction Z.
  • the present invention is not limited to this, and can be appropriately changed according to various conditions.
  • the plurality of connecting portions 91 are connecting portions for integrally forming the plurality of columnar members 90, and connect the two columnar members 90 adjacent to each other in the vehicle longitudinal direction X and the vehicle height direction Z to each other.
  • the plurality of connecting portions 91 only need to be able to integrally connect all the columnar members 90 included in the spacer 84, and the two adjacent columnar members 90 need not necessarily be directly connected. Therefore, the hollow portion 95 of the spacer 84 is formed between the plurality of connecting portions 91.
  • the downward extension 94 is a portion extending downward from the columnar member 90 disposed in the vehicle height direction Z in the vehicle height direction Z and defining the height of the bottom surface of the spacer 84. The function of the downward extension 94 will be described later.
  • the plurality of columnar members 90 include a circular bolt seat surface 92 at an end surface in the vehicle width direction Y, and a bolt through hole 93 penetrating in the vehicle width direction Y at the center of the bolt seat surface 92. I have.
  • the spacers 84 are integrally fixed by the bolts 11B penetrating through the bolt through holes 93 while being sandwiched between the side rails 11 and the frame side bracket 81 from both sides in the vehicle width direction Y.
  • the spacer 84 is formed by extruding aluminum, for example, as described above, the width W in the vehicle width direction Y can be easily adjusted according to the distance between the side rail 11 and the frame-side bracket 81. it can. At this time, even if there is a variation in the interval, the width W can be set according to the cutting position of the aluminum to be extruded, so that a mold for forming the spacer 84 can be shared. .
  • the spacer 84 supports the bolt 11 ⁇ / b> B between the side rail 11 and the frame-side bracket 81, thereby improving the reliability against the stress applied to the bolt 11 ⁇ / b> B due to the weight of the battery pack 70.
  • the spacer 84 has a hollow portion 95 at a portion that is excessive with respect to improvement in reliability, the weight can be reduced.
  • FIG. 4 is a rear view schematically showing a connection form of the support device 80 for connecting the side rail 11 and the battery pack 70. More specifically, FIG. 4 schematically shows a state in which the battery pack 70 is suspended on the side rail 11 by the support device 80 as viewed from the rear in the vehicle longitudinal direction X.
  • the battery pack 70 mounted on the vehicle 1 is suspended on the side rail 11 via the battery-side bracket 82, the elastic connecting portion 83, the frame-side bracket 81, and the spacer 84 on both sides in the vehicle width direction Y, as described above.
  • the distance between the left side rail 11L and the right side rail 11R of the side rail 11 differs depending on the size of the vehicle 1. Therefore, the support device 80 adjusts the interval according to the width W of the spacer 84 in the vehicle width direction Y.
  • the frame-side bracket 81 is connected to the side rails 11 in the vehicle width direction Y via the spacers 84 by the bolts 11B, and is connected to the elastic connection portion 83 below the vehicle height direction Z. Therefore, stress concentrates on the spacer 84 and the frame-side bracket 81 on the shortest path between the side rail 11 and the elastic connecting portion 83.
  • the plurality of columnar members 90 of the spacer 84 are connected to the outer surface of the side rail 11 so as to correspond to the plurality of bolt fastening portions 11H formed on the web 11w of the side rail 11.
  • the spacer 84 since the spacer 84 has the lower extending portion 94 formed below the plurality of columnar members 90 in the vehicle height direction Z, the lower extending portion 94 is higher than the bottom surface of the side rail 11 in vehicle height. It will extend below the direction Z. For this reason, the spacer 84 has improved durability against the stress by providing the downwardly extending portion 94 in a portion where the stress is concentrated.
  • the supporting device 80 when the battery pack 70 is suspended on the side rail 11 of the vehicle, the supporting device 80 according to the present invention has a width W corresponding to the separation distance between the outer surface of the side rail 11 and the frame-side bracket 81. A spacer 84 is provided. For this reason, even if there is a variation in the distance between the left side rail 11L and the right side rail 11R depending on the vehicle size, the support device 80 does not need to design and manufacture each variation, and can reduce the cost. it can.
  • the spacer 84 of the support device 80 includes a plurality of columnar members 90 connected by a connecting portion 91, and a portion that becomes excessive in supporting the weight of the battery pack 70 is formed as a hollow portion 95. By doing so, weight reduction and cost reduction can be achieved.
  • the spacer 84 of the support device 80 according to the present invention is formed by, for example, extrusion molding, even if a plurality of variations of the width W are formed, a common mold is used for manufacturing. And design and manufacturing costs can be reduced. Therefore, according to the support device 80 according to the present invention, it is possible to reduce the weight and cost while supporting various vehicle models.
  • the present invention is not limited to the above embodiment.
  • the spacer 84 is described as being formed by extrusion.
  • other formation methods such as pultruding and casting may be employed.
  • the mode in which the bolts 11B are inserted through all the bolt through holes 93 provided in the spacer 84 is illustrated.
  • a connection method that does not use the bolt through hole 93 may be applied.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Body Structure For Vehicles (AREA)
PCT/JP2019/020723 2018-06-27 2019-05-24 車両用バッテリパック支持装置 Ceased WO2020003835A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201980042317.2A CN112292278B (zh) 2018-06-27 2019-05-24 车辆用电池组支撑装置
US17/255,338 US11548363B2 (en) 2018-06-27 2019-05-24 Vehicle battery pack support device
EP19826469.9A EP3795398B1 (en) 2018-06-27 2019-05-24 Vehicular battery pack supporting device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-121589 2018-06-27
JP2018121589A JP7190269B2 (ja) 2018-06-27 2018-06-27 車両用バッテリパック支持装置

Publications (1)

Publication Number Publication Date
WO2020003835A1 true WO2020003835A1 (ja) 2020-01-02

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ID=68986180

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/020723 Ceased WO2020003835A1 (ja) 2018-06-27 2019-05-24 車両用バッテリパック支持装置

Country Status (5)

Country Link
US (1) US11548363B2 (https=)
EP (1) EP3795398B1 (https=)
JP (1) JP7190269B2 (https=)
CN (1) CN112292278B (https=)
WO (1) WO2020003835A1 (https=)

Cited By (6)

* Cited by examiner, † Cited by third party
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US20210362579A1 (en) 2021-11-25
EP3795398A1 (en) 2021-03-24
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