WO2022210584A1 - Batterie de véhicule - Google Patents

Batterie de véhicule Download PDF

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Publication number
WO2022210584A1
WO2022210584A1 PCT/JP2022/015136 JP2022015136W WO2022210584A1 WO 2022210584 A1 WO2022210584 A1 WO 2022210584A1 JP 2022015136 W JP2022015136 W JP 2022015136W WO 2022210584 A1 WO2022210584 A1 WO 2022210584A1
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WO
WIPO (PCT)
Prior art keywords
battery
floor plate
vehicle
frame
reinforcing
Prior art date
Application number
PCT/JP2022/015136
Other languages
English (en)
Japanese (ja)
Inventor
サイモン オバホッファ
ジーチェン ウー
シャオジー リー
Original Assignee
ダイムラー・アクチェンゲゼルシャフト
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 ダイムラー・アクチェンゲゼルシャフト filed Critical ダイムラー・アクチェンゲゼルシャフト
Publication of WO2022210584A1 publication Critical patent/WO2022210584A1/fr

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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
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • 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
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • 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

Definitions

  • This case relates to a vehicle battery including a plurality of battery modules and a group of electronic devices for driving and controlling the battery modules.
  • the present invention was invented in view of the problems described above, and one of the objects thereof is to increase the energy density of a vehicle battery.
  • a vehicle battery according to this application example includes a battery module having a plurality of battery cells that supply power to a motor that drives a vehicle, an electronic device group for driving and controlling the battery module, and a plurality of the battery modules.
  • a lower housing consisting of a lower floor plate on which the battery modules are placed and a lower frame surrounding the plurality of battery modules above the lower floor plate; It comprises a plurality of reinforcing plates arranged between modules, an upper floor plate provided above the battery modules and supported by the reinforcing plates, and an upper frame surrounding the electronic device group above the upper floor plate. and an upper housing.
  • the energy density can be increased in the vehicle battery.
  • FIG. 1 is a schematic top view of an electric vehicle according to an embodiment
  • FIG. 1 is an exploded perspective view illustrating the configuration of part of a vehicle battery
  • FIG. FIG. 4 is an exploded perspective view illustrating the configuration of the vehicle battery other than the lower lid and the upper lid.
  • 4 is an exploded perspective view of a battery pack including a lower lid and an upper lid
  • FIG. 4 is a cross-sectional view showing a state in which a lower cover of the vehicle battery is opened
  • FIG. 4 is a cross-sectional view showing a state in which an upper cover of the vehicle battery is opened;
  • a battery pack (vehicle battery) 10 is mounted in an electric vehicle (vehicle) 20, which is an electric vehicle or a hybrid vehicle.
  • vehicle vehicle
  • a truck provided with a cab 21 and a cargo box 22 is exemplified.
  • the cab 21 and the packing box 22 are indicated by two-dot chain lines.
  • the battery pack 10 of this embodiment has a substantially rectangular parallelepiped external shape, and has a substantially rectangular shape when viewed from above.
  • the battery pack 10 is arranged below a pair of side rails 23 extending in the vehicle length direction (front-rear direction) D ⁇ b>1 and supported by each side rail 23 .
  • the shape, arrangement, and support method of the battery pack 10 are not limited to those illustrated here.
  • the electric vehicle 20 in which one battery pack 10 is mounted is illustrated here, the number of battery packs 10 mounted in the electric vehicle 20 may be two or more.
  • the battery pack 10 includes multiple battery modules 1 , a lower housing 3 that accommodates the battery modules 1 , and multiple reinforcing plates 2 that reinforce the lower housing 3 .
  • a battery pack 10 in which four battery modules 1 arranged in the vehicle length direction D1 are accommodated in a single lower housing 3 is illustrated.
  • Each battery module 1 is configured similarly to each other. Specifically, each battery module 1 has a plurality of battery cells (not shown) stacked in a predetermined stacking direction Do. In each battery module 1, a plurality of battery cells are connected in series. The battery cells of the battery module 1 supply power to a motor (not shown) that drives the electric vehicle 20 .
  • the dimension in the stacking direction Do is either the dimension in the width direction Dw orthogonal to the stacking direction Do or the dimension in the height direction Dh orthogonal to both the stacking direction Do and the width direction Dw.
  • the shape of the battery module 1 is not limited to the shape illustrated here.
  • the plurality of battery modules 1 are arranged in parallel with the stacking direction Do parallel to each other.
  • a battery pack 10 in which each battery module 1 is arranged in a posture in which the stacking direction Do coincides with the vehicle width direction (horizontal direction) D2 is exemplified.
  • the reinforcing plate 2 extends between a pair of opposing wall surfaces of the lower frame 32 and is arranged between the battery modules 1 .
  • two plate-shaped reinforcing plates 2 extending along the vehicle width direction D2 that is, the stacking direction Do) are illustrated.
  • the two reinforcing plates 2 are provided separated from each other in the vehicle length direction D1.
  • the reinforcement plate 2 is fixed to at least one of the lower floor plate 31 and the lower frame 32 .
  • the reinforcement plate 2 of this embodiment is fixed to the frame 32 by welding at both ends in the vehicle width direction D2.
  • the reinforcing plate 2 is, for example, an aluminum extrusion, and has a hollow portion 2a (see FIGS. 5 and 6) extending in the vehicle width direction D2.
  • a reinforcement plate 2 in which a plurality of hollow portions 2a are arranged in parallel in the vehicle height direction (vertical direction) D3 is exemplified.
  • the battery pack 10 further includes an electronic device group 9 for driving and controlling the battery module 1 and an upper housing 4 that houses the electronic device group 9 .
  • the upper housing 4 is formed smaller than the lower housing 3 and arranged above the lower housing 3 .
  • the battery pack 10 has a two-story structure in which the relatively small upper housing 4 is arranged above the relatively large lower housing 3 .
  • the upper housing 4 includes an upper floor plate 41 provided above the battery module 1 and supported by the reinforcing plate 2 , and an upper frame 42 surrounding the electronic device group 9 above the upper floor plate 41 .
  • an upper housing 4 having a container shape is illustrated by an upper floor plate 41 having a rectangular shape and an upper frame 42 having a rectangular tubular shape and erected from a portion inside the outer edge of the upper floor plate 41 .
  • the upper floor plate 41 of this embodiment has the extending portion 43 extending outside the upper frame 42 .
  • the electronic device group 9 is placed on the center portion 44 inside the extension portion 43 of the upper floor plate 41 via appropriate brackets (not shown).
  • the electronic device group 9 includes, for example, a battery control unit (BCU; Battery Control Unit), contactors, fuses, current sensors, charging connectors, and the like.
  • BCU Battery Control Unit
  • the electronic equipment group 9 is arranged in a limited space inside the upper frame 42 at high density (with the gaps as close as possible).
  • Each support bracket 5 includes a rod-shaped main portion 5a extending along the reinforcing plate 2 (in the vehicle width direction D2 in this embodiment), a plurality of pedestal portions 5b projecting from the main portion 5a, and each pedestal portion 5b. and a screw hole 5c formed in the .
  • the support bracket 5 is arranged above the reinforcing plate 2 and fixed to the reinforcing plate 2 by, for example, bolts (not shown).
  • the upper floor plate 41 of this embodiment has a plurality of through holes 45 formed at positions overlapping the screw holes 5 c of the support bracket 5 .
  • the upper floor plate 41 is fixed to the support bracket 5 by screwing the bolts 11 inserted through the through holes 45 into the screw holes 5 c of the support bracket 5 .
  • two reinforcing brackets 6 extend between two supporting brackets 5.
  • the reinforcing bracket 6 extends along a direction (vehicle length direction D1 in this embodiment) intersecting the main portion 5a of the support bracket 5 and connects the two support brackets 5 together.
  • the reinforcing bracket 6 is arranged below the central portion 44 of the upper floor plate 41 and supports the central portion 44 .
  • the battery pack 10 is provided above the lower frame 32 to cover the battery modules 1 while avoiding the upper frame 42 , and above the upper frame 42 .
  • An upper lid 8 that covers the electronic device group 9 is further included. That is, in the battery pack 10, the lower cover 7 attached to the lower housing 3 and the upper cover 8 attached to the upper housing 4 are formed separately from each other, and can be opened and closed (removed, installation) is possible.
  • the upper lid body 8 is formed of a rectangular plate member corresponding to the upper frame body 42 .
  • the upper lid 8 is placed in contact with the upper edge of the upper frame 42 from above, and is detachably fixed to the upper frame 42 by a fixture (not shown).
  • the reinforcing plate 2 that is a reinforcing member of the lower housing 3 can be used as a pedestal for the upper floor plate 41 .
  • the lower lid 7 covers the battery module 1 while avoiding the upper frame 42 , so that the lower lid 7 can be opened and closed individually with respect to the upper lid 8 covering the electronic device group 9 . .
  • FIG. 5 it is possible to open (remove) the lower lid 7 while keeping the upper lid 8 closed (attached).
  • FIG. 6 it is also possible to open (remove) the upper lid 8 while keeping the lower lid 7 closed (attached).
  • the upper floor plate 41 is supported by the reinforcing plate 2 via the supporting bracket 5 arranged above the reinforcing plate 2 as in the present embodiment, only the shape of the supporting bracket 5 is changed. , the upper floor plate 41 can be supported by various types of reinforcing plates 2 . Moreover, if a reinforcing bracket 6 that connects the support brackets 5 is further provided, the upper floor plate 41 can be supported by the reinforcing bracket 6 as well, so deformation and displacement of the upper floor plate 41 can be suppressed. As a result, the positional displacement and vibration of the electronic device group 9 are suppressed, so that the reliability of the battery pack 10 can be enhanced.
  • the configuration of the battery pack 10 described above is an example.
  • the upper floor plate 41 may be supported by the reinforcing plate 2 by being placed directly on the reinforcing plate 2 without the support bracket 5 interposed therebetween. Also, the reinforcing bracket 6 may be omitted.
  • the number of battery modules 1 provided in the battery pack 10 and the orientation of the battery modules 1 in the battery pack 10 are not limited to the above examples.
  • five or more battery modules 1 may be housed in the lower housing 3 .
  • the battery module 1 may be housed in the lower housing 3 in such a manner that the stacking direction Do coincides with the vehicle length direction D1.
  • Each shape of the lower housing 3 and the upper housing 4 described above is an example.
  • Each shape of the lower lid 7 and the upper lid 8 may also be appropriately set according to each shape of the lower frame 32 and the upper frame 42, and is not limited to the above example.
  • the extending direction, number and arrangement of the reinforcing plates 2 are also not limited to the above examples.
  • the reinforcing plate 2 does not have to be an aluminum extruded product, and does not have to have the hollow portion 2a.
  • the battery pack 10 may be applied to vehicles other than trucks.
  • battery module reinforcement plate 2a hollow portion 3 lower housing 4 upper housing 5 support bracket 5a main portion 5b pedestal portion 5c screw hole 6 reinforcement bracket 7 lower lid 7a through hole 8 upper lid 9 electronic device group 10 battery pack (vehicle battery) 11 bolt 20 electric vehicle (vehicle) 21 cab 22 packing box 23 side rail 31 lower floor plate 32 lower frame 41 upper floor plate 42 upper frame 43 extending portion 44 central portion 45 through hole D1 vehicle length direction D2 vehicle width direction D3 vehicle height direction Dh height direction Do Lamination direction Dw Width direction

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Body Structure For Vehicles (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Une batterie de véhicule (10) comprend un boîtier inférieur (3), une plaque de renfort (2), un boîtier supérieur (4), un couvercle inférieur (7) et un couvercle supérieur (8). Le boîtier inférieur (3) comprend une plaque de plancher inférieure (31) sur laquelle sont placés des modules de batterie (1) et un cadre inférieur (32) qui entoure les modules de batterie (1). La plaque de renfort (2) s'étend entre une paire de surfaces de paroi opposées dans le cadre inférieur (32), et est disposée entre les modules de batterie (1). Le boîtier supérieur (4) comprend une plaque de plancher supérieure (41) disposée au-dessus des modules de batterie (1) et supportée par la plaque de renfort (2), et un cadre supérieur (42) qui entoure un groupe électronique (9). Le couvercle inférieur (7) est disposé au-dessus du cadre inférieur (32) et recouvre les modules de batterie (1) tout en évitant le cadre supérieur (42). Le couvercle supérieur (8) est disposé au-dessus du cadre supérieur (42) et recouvre le groupe électronique (9).
PCT/JP2022/015136 2021-03-29 2022-03-28 Batterie de véhicule WO2022210584A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-055307 2021-03-29
JP2021055307A JP7490609B2 (ja) 2021-03-29 2021-03-29 車両用バッテリ

Publications (1)

Publication Number Publication Date
WO2022210584A1 true WO2022210584A1 (fr) 2022-10-06

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ID=83459286

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/015136 WO2022210584A1 (fr) 2021-03-29 2022-03-28 Batterie de véhicule

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Country Link
JP (1) JP7490609B2 (fr)
WO (1) WO2022210584A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07156826A (ja) * 1993-12-06 1995-06-20 Honda Motor Co Ltd 電気自動車の組立構造
JP2015079605A (ja) * 2013-10-16 2015-04-23 日産自動車株式会社 筐体およびバッテリパック
JP2019061847A (ja) * 2017-09-26 2019-04-18 株式会社Ｇｓユアサ 蓄電装置、管理装置、及び蓄電装置の状態判定方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07156826A (ja) * 1993-12-06 1995-06-20 Honda Motor Co Ltd 電気自動車の組立構造
JP2015079605A (ja) * 2013-10-16 2015-04-23 日産自動車株式会社 筐体およびバッテリパック
JP2019061847A (ja) * 2017-09-26 2019-04-18 株式会社Ｇｓユアサ 蓄電装置、管理装置、及び蓄電装置の状態判定方法

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JP7490609B2 (ja) 2024-05-27
JP2022152511A (ja) 2022-10-12

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