JP2021142832A - Battery pack - Google Patents

Battery pack Download PDF

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Publication number
JP2021142832A
JP2021142832A JP2020041903A JP2020041903A JP2021142832A JP 2021142832 A JP2021142832 A JP 2021142832A JP 2020041903 A JP2020041903 A JP 2020041903A JP 2020041903 A JP2020041903 A JP 2020041903A JP 2021142832 A JP2021142832 A JP 2021142832A
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Prior art keywords
vehicle
width direction
bead
pair
vehicle width
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JP2021142832A5 (en
JP7338519B2 (en
Inventor
皓太 ▲高▼市
皓太 ▲高▼市
Kota Takaichi
和政 堀山
Kazumasa Horiyama
和政 堀山
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Suzuki Motor Corp
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Suzuki Motor Corp
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Priority to DE102021105147.9A priority patent/DE102021105147A1/en
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Publication of JP2021142832A5 publication Critical patent/JP2021142832A5/ja
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • 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
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • 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
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • H01M50/224—Metals
    • 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
    • H01M50/24—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 from their environment, e.g. from corrosion
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/276—Inorganic material
    • 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
    • H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Battery Mounting, Suspending (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

To provide a battery pack enabling vehicle minimum ground clearance to be secured, and enabling reduction of rigidity of a battery case to be suppressed.SOLUTION: A main bead 35 which projects upward and extends in a vehicle longitudinal direction, is provided on a top surface of an upper case 30, the main bead 35 has a first bead portion 36 which constitutes a vehicle front side region, a second bead portion 37 which is located on a vehicle rear side of the first bead portion 36, and a recess 35A which is recessed downward to separate the first bead portion 36 and the second bead portion 37. Further, a pair of extension portions 36B which extend to a vehicle rear side, are provided at a rear end portion of the first bead portion 36, and a front end portion 37A of the second bead portion 37 is located between the pair of extension portions 36B. Piping 51, 52 are located above a battery case 21 in such a manner that at least a part of the piping 51, 52 is surrounded by the pair of first bead portions 36, the pair of extension portions 36B and the second bead portion 37.SELECTED DRAWING: Figure 2

Description

本発明は、バッテリパックに関する。 The present invention relates to a battery pack.

自動車等の車両にあっては、走行用のモータに電力を供給するバッテリをフロアパネルの下面側に搭載することがある。従来のこの種のバッテリパックとして特許文献１に記載されたものが知られている。特許文献１に記載のバッテリパックにおいて、バッテリケースの車両幅方向中央の上面には、上方に突出する凸部が形成されている。特許文献１に記載のバッテリパックは、バッテリケースの上面の凸部を補強用のビードとして機能させることにより、バッテリケースの剛性を向上させることができる。 In vehicles such as automobiles, a battery that supplies electric power to a traveling motor may be mounted on the lower surface side of the floor panel. As a conventional battery pack of this type, the one described in Patent Document 1 is known. In the battery pack described in Patent Document 1, a convex portion protruding upward is formed on the upper surface of the center of the battery case in the vehicle width direction. In the battery pack described in Patent Document 1, the rigidity of the battery case can be improved by allowing the convex portion on the upper surface of the battery case to function as a bead for reinforcement.

特開２０１９−１５１２９４号公報JP-A-2019-151294

ここで、車体のフロアパネルの下面には、後輪のブレーキに作動油を供給するブレーキ配管等が配置されることがある。したがって、フロアパネルの下面側にブレーキ配管の設置スペースを確保した上で、バッテリパックの形状や設置位置を検討することが重要となる。 Here, a brake pipe or the like that supplies hydraulic oil to the brakes of the rear wheels may be arranged on the lower surface of the floor panel of the vehicle body. Therefore, it is important to consider the shape and installation position of the battery pack after securing the installation space for the brake piping on the lower surface side of the floor panel.

しかしながら、特許文献１に記載の従来の技術にあっては、ブレーキ配管等の配管をフロアパネルとバッテリパックとの間に設置することを考慮していないので、配管を設置するためにバッテリパックの搭載位置がより下方に変更され、これにより車両の走行に必要な地面から車両下部までの高さ（最低地上高）を確保できなくなるおそれがあった。 However, in the conventional technique described in Patent Document 1, since it is not considered to install a pipe such as a brake pipe between the floor panel and the battery pack, the battery pack is used to install the pipe. The mounting position was changed to a lower position, which could make it impossible to secure the height from the ground to the lower part of the vehicle (minimum ground clearance) required for the vehicle to run.

また、特許文献１に記載の技術において、バッテリケースの上面の凸部の突出量を小さくして配管の設置スペースを確保するようにした場合、バッテリケースの剛性が低下するおそれがあった。 Further, in the technique described in Patent Document 1, when the protrusion amount of the convex portion on the upper surface of the battery case is reduced to secure the installation space for the piping, the rigidity of the battery case may be lowered.

本発明は、上記のような事情に着目してなされたものであり、車両の最低地上高を確保でき、かつ、バッテリケースの剛性低下を抑制できるバッテリパックを提供することを目的とするものである。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a battery pack capable of ensuring a minimum ground clearance of a vehicle and suppressing a decrease in rigidity of a battery case. be.

本発明は、複数のバッテリモジュールと、車体のフロアパネルの下方に配置され、前記バッテリモジュールを収納するバッテリケースと、を備え、前記バッテリケースは前記バッテリモジュールを上方から覆うアッパケースを有し、車両前後方向に延びる配管が前記フロアパネルと前記アッパケースとで挟まれるように配索され、前記アッパケースの上面に前記配管を保持するクランプ部材が設けられたバッテリパックであって、前記アッパケースの上面に、上方に突出し、かつ、車両前後方向に延びる主ビードが設けられ、前記主ビードは、その車両前方側の部位を構成する第１ビード部と、前記第１ビード部の車両後方側に配置された第２ビード部と、前記第１ビード部と前記第２ビード部とを分断するように下方に凹む凹部と、を有し、前記第１ビード部の後端部に、車両後方に延びる一対の延長部を設け、一対の前記延長部の間に前記第２ビード部の前端部が配置され、前記配管は、前記バッテリケースの上方であって、前記配管の少なくとも一部が前記第１ビード部と一対の前記延長部と前記第２ビード部とで囲まれるように配置されていることを特徴とする。 The present invention includes a plurality of battery modules, a battery case arranged below the floor panel of the vehicle body and accommodating the battery modules, and the battery case has an upper case that covers the battery modules from above. A battery pack in which pipes extending in the front-rear direction of the vehicle are arranged so as to be sandwiched between the floor panel and the upper case, and a clamp member for holding the pipes is provided on the upper surface of the upper case. A main bead that protrudes upward and extends in the front-rear direction of the vehicle is provided on the upper surface of the vehicle, and the main bead is a first bead portion that constitutes a portion on the front side of the vehicle and a rear side of the first bead portion. It has a second bead portion arranged in the above, a recess recessed downward so as to divide the first bead portion and the second bead portion, and a rear end portion of the first bead portion at the rear of the vehicle. A pair of extension portions are provided, the front end portion of the second bead portion is arranged between the pair of extension portions, and the pipe is above the battery case, and at least a part of the pipe is said. It is characterized in that it is arranged so as to be surrounded by the first bead portion, the pair of the extension portions, and the second bead portion.

このように上記の本発明によれば、車両の最低地上高を確保でき、かつ、バッテリケースの剛性低下を抑制できるバッテリパックを提供することができる。 As described above, according to the present invention, it is possible to provide a battery pack that can secure the minimum ground clearance of the vehicle and suppress the decrease in the rigidity of the battery case.

図１は、本発明の一実施例に係るバッテリパックを備える車両のフロアパネルおよびバッテリパックの平面図である。FIG. 1 is a plan view of a floor panel and a battery pack of a vehicle including a battery pack according to an embodiment of the present invention. 図２は、本発明の一実施例に係るバッテリパックの平面図である。FIG. 2 is a plan view of a battery pack according to an embodiment of the present invention. 図３は、図２に示すバッテリパックのＩＩＩ−ＩＩＩ方向矢視断面図である。FIG. 3 is a cross-sectional view taken along the line III-III of the battery pack shown in FIG. 図４は、図２に示すバッテリパックのＩＶ−ＩＶ方向矢視断面図である。FIG. 4 is a cross-sectional view taken along the line IV-IV of the battery pack shown in FIG. 図５は、図２に示すバッテリパックのＶ−Ｖ方向矢視断面図である。FIG. 5 is a cross-sectional view taken along the line VV of the battery pack shown in FIG. 図６は、図２に示すバッテリパックのＶＩ−ＶＩ方向矢視断面図である。FIG. 6 is a cross-sectional view taken along the line VI-VI of the battery pack shown in FIG.

本発明の一実施の形態に係るバッテリパックは、複数のバッテリモジュールと、車体のフロアパネルの下方に配置され、バッテリモジュールを収納するバッテリケースと、を備え、バッテリケースはバッテリモジュールを上方から覆うアッパケースを有し、車両前後方向に延びる配管がフロアパネルとアッパケースとで挟まれるように配索され、アッパケースの上面に配管を保持するクランプ部材が設けられたバッテリパックであって、アッパケースの上面に、上方に突出し、かつ、車両前後方向に延びる主ビードが設けられ、主ビードは、その車両前方側の部位を構成する第１ビード部と、第１ビード部の車両後方側に配置された第２ビード部と、第１ビード部と第２ビード部とを分断するように下方に凹む凹部と、を有し、第１ビード部の後端部に、車両後方に延びる一対の延長部を設け、一対の延長部の間に第２ビード部の前端部が配置され、配管は、バッテリケースの上方であって、配管の少なくとも一部が第１ビード部と一対の延長部と第２ビード部とで囲まれるように配置されていることを特徴とする。これにより、本発明の一実施の形態に係るバッテリパックは、車両の最低地上高を確保でき、かつ、バッテリケースの剛性低下を抑制できる。 The battery pack according to the embodiment of the present invention includes a plurality of battery modules and a battery case arranged below the floor panel of the vehicle body and accommodating the battery modules, and the battery case covers the battery modules from above. A battery pack that has an upper case, the pipes extending in the front-rear direction of the vehicle are arranged so as to be sandwiched between the floor panel and the upper case, and a clamp member for holding the pipes is provided on the upper surface of the upper case. A main bead that protrudes upward and extends in the front-rear direction of the vehicle is provided on the upper surface of the case, and the main bead is on the first bead portion that constitutes the portion on the front side of the vehicle and the rear side of the vehicle on the first bead portion. It has a second bead portion that is arranged, and a recess that is recessed downward so as to divide the first bead portion and the second bead portion, and a pair of recesses that extend to the rear of the vehicle at the rear end portion of the first bead portion. An extension is provided, the front end of the second bead is placed between the pair of extensions, the pipe is above the battery case, and at least part of the pipe is with the first bead and the pair of extensions. It is characterized in that it is arranged so as to be surrounded by the second bead portion. As a result, the battery pack according to the embodiment of the present invention can secure the minimum ground clearance of the vehicle and suppress the decrease in the rigidity of the battery case.

以下、本発明の実施例に係るバッテリパックについて、図面を用いて説明する。図１から図６において、上下前後左右方向は、車両に設置された状態のバッテリパックの上下前後左右方向とし、車両の前後方向に対して直交する方向が左右方向、バッテリパックの高さ方向が上下方向である。 Hereinafter, the battery pack according to the embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 to 6, the up / down / front / rear / left / right directions are the up / down / front / rear / left / right directions of the battery pack installed in the vehicle, the direction orthogonal to the front / rear direction of the vehicle is the left / right direction, and the height direction of the battery pack is. It is in the vertical direction.

図１から図６は、本発明の一実施例に係るバッテリパックを示す図である。 1 to 6 are views showing a battery pack according to an embodiment of the present invention.

まず、構成を説明する。図１において、車両１は、車体２を備えている。車体２は、その下部にフロアパネル２Ａを有している。フロアパネル２Ａの後部には凹部２Ｂが設けられており、この凹部２Ｂは、下方に窪んでいる。凹部２Ｂには図示しないスペアタイヤが収容されている。フロアパネル２Ａには、車両前後方向に延びる左右で一対のサイドメンバ１１が設けられている。サイドメンバ１１には、車両幅方向に延びるクロスメンバ１３、１４が接続されている。 First, the configuration will be described. In FIG. 1, the vehicle 1 includes a vehicle body 2. The vehicle body 2 has a floor panel 2A below the floor panel 2. A recess 2B is provided at the rear portion of the floor panel 2A, and the recess 2B is recessed downward. A spare tire (not shown) is housed in the recess 2B. The floor panel 2A is provided with a pair of left and right side members 11 extending in the front-rear direction of the vehicle. Cross members 13 and 14 extending in the vehicle width direction are connected to the side member 11.

フロアパネル２Ａの下側にはバッテリパック２０が設けられている。バッテリパック２０は車両１の図示しないモータに電力を供給する。バッテリパック２０は、一対のサイドメンバ１１の間に配置されている。クロスメンバ１３は、バッテリパック２０の前端部の上部の近傍を車両幅方向に横切るように配置されている。クロスメンバ１４は、バッテリパック２０の車両前後方向の中間部の後方寄りの部位の上部を車両幅方向に横切るように配置されている。なお、図１は、バッテリパック２０の上部においてフロアパネル２Ａの一部を透過してバッテリパック２０を見た状態を表わしている。 A battery pack 20 is provided on the lower side of the floor panel 2A. The battery pack 20 supplies electric power to a motor (not shown) of the vehicle 1. The battery pack 20 is arranged between the pair of side members 11. The cross member 13 is arranged so as to cross the vicinity of the upper portion of the front end portion of the battery pack 20 in the vehicle width direction. The cross member 14 is arranged so as to cross the upper portion of the battery pack 20 in the middle portion in the vehicle front-rear direction toward the rear in the vehicle width direction. Note that FIG. 1 shows a state in which the battery pack 20 is viewed through a part of the floor panel 2A at the upper part of the battery pack 20.

図３において、バッテリパック２０は、複数のバッテリモジュール６１と、複数のバッテリモジュール６１を収容するバッテリケース２１と、を有している。バッテリケース２１は、平面視において全体として四角形に形成されている。 In FIG. 3, the battery pack 20 has a plurality of battery modules 61 and a battery case 21 accommodating the plurality of battery modules 61. The battery case 21 is formed as a quadrangle as a whole in a plan view.

バッテリケース２１はロアケース４０とアッパケース３０とからなる。アッパケース３０はバッテリケース２１の上部を構成しており、バッテリモジュール６１を上方から覆っている。ロアケース４０はバッテリケース２１の下部を構成しており、バッテリモジュール６１を保持している。ロアケース４０は、バッテリモジュール６１の下面および側面を覆っている。 The battery case 21 includes a lower case 40 and an upper case 30. The upper case 30 constitutes the upper part of the battery case 21 and covers the battery module 61 from above. The lower case 40 constitutes the lower part of the battery case 21 and holds the battery module 61. The lower case 40 covers the lower surface and the side surface of the battery module 61.

図１、図２において、フロアパネル２Ａの車両幅方向の中央部の上面には、ブレーキ用の配管５１、５２が配置されている。配管５１、５２がフロアパネル２Ａとアッパケース３０とで挟まれるように、車両前後方向に延びている。アッパケース３０の上面にはクランプ部材５３が設けられており、クランプ部材５３は配管５１、５２を保持している。 In FIGS. 1 and 2, brake pipes 51 and 52 are arranged on the upper surface of the central portion of the floor panel 2A in the vehicle width direction. The pipes 51 and 52 extend in the front-rear direction of the vehicle so as to be sandwiched between the floor panel 2A and the upper case 30. A clamp member 53 is provided on the upper surface of the upper case 30, and the clamp member 53 holds the pipes 51 and 52.

図２において、アッパケース３０の上面には、車両前後方向に延びる主ビード３５が設けられている。主ビード３５は、アッパケース３０の基準面３２から上方に突出している。ここで、基準面３２とは、アッパケース３０の上面における何らの凸形状も形成されていない平坦な部分の面である。 In FIG. 2, a main bead 35 extending in the front-rear direction of the vehicle is provided on the upper surface of the upper case 30. The main bead 35 projects upward from the reference surface 32 of the upper case 30. Here, the reference surface 32 is a surface of a flat portion on the upper surface of the upper case 30 in which no convex shape is formed.

主ビード３５は、その車両前方側の部位を構成する第１ビード部３６と、第１ビード部３６の車両後方側に配置された第２ビード部３７と、第１ビード部３６と第２ビード部３７とを分断するように下方に凹む凹部３５Ａと、を有している。 The main bead 35 includes a first bead portion 36 that constitutes a portion on the front side of the vehicle, a second bead portion 37 arranged on the rear side of the vehicle of the first bead portion 36, and a first bead portion 36 and a second bead. It has a recess 35A that is recessed downward so as to divide the portion 37.

第１ビード部３６の後端部には、車両後方に延びる一対の延長部３６Ｂを設けられている。一対の延長部３６Ｂの間には第２ビード部３７の前端部が配置されている。 A pair of extension portions 36B extending to the rear of the vehicle are provided at the rear end portion of the first bead portion 36. The front end portion of the second bead portion 37 is arranged between the pair of extension portions 36B.

配管５１、５２の一部は凹部３５Ａに配置されている。したがって、凹部３５Ａにおいて、配管５１、５２の一部は、第１ビード部３６と一対の延長部３６Ｂと第２ビード部３７とで囲まれている。 A part of the pipes 51 and 52 is arranged in the recess 35A. Therefore, in the recess 35A, a part of the pipes 51 and 52 is surrounded by the first bead portion 36, the pair of extension portions 36B, and the second bead portion 37.

図２、図４において、第１ビード部３６は、その後端部に車両幅方向の寸法が拡張された拡張部３６Ａを有している。拡張部３６Ａの車両幅方向の両端部には、一対の延長部３６Ｂが接続されている。このように、一対の延長部３６Ｂは、第１ビード部３６の後端部に対して直接設けられるのではなく、車両幅方向の寸法が拡張された拡張部３６Ａを介して設けられている。 In FIGS. 2 and 4, the first bead portion 36 has an expansion portion 36A whose dimensions in the vehicle width direction are expanded at the rear end portion. A pair of extension portions 36B are connected to both ends of the extension portion 36A in the vehicle width direction. As described above, the pair of extension portions 36B are not provided directly to the rear end portion of the first bead portion 36, but are provided via the extension portion 36A whose dimensions in the vehicle width direction are expanded.

図２、図５において、一対の延長部３６Ｂは、第２ビード部３７の前端部３７Ａと車両幅方向で対向するように形成されている。また、一対の延長部３６Ｂと第２ビード部３７の前端部との間に、凹部３５Ａからアッパケース３０の上面に連通する溝状の水排出路３５Ｂが設けられている。 In FIGS. 2 and 5, the pair of extension portions 36B are formed so as to face the front end portion 37A of the second bead portion 37 in the vehicle width direction. Further, a groove-shaped water discharge path 35B communicating from the recess 35A to the upper surface of the upper case 30 is provided between the pair of extension portions 36B and the front end portion of the second bead portion 37.

図２において、アッパケース３０の上面であって、一対の延長部３６Ｂの車両幅方向の外側には、上方に突出し、かつ、車両前後方向に延びる一対の副ビード３２Ａが設けられている。一対の延長部３６Ｂの車両幅方向の寸法は、第１ビード部３６の車両幅方向の寸法より小さく設定されている。一対の延長部３６Ｂは、車両幅方向で一対の副ビード３２Ａと第２ビード部３７の前端部３７Ａとの間に配置されている。 In FIG. 2, a pair of auxiliary beads 32A that protrude upward and extend in the front-rear direction of the vehicle are provided on the upper surface of the upper case 30 and outside the pair of extension portions 36B in the vehicle width direction. The dimension of the pair of extension portions 36B in the vehicle width direction is set to be smaller than the dimension of the first bead portion 36 in the vehicle width direction. The pair of extension portions 36B are arranged between the pair of auxiliary beads 32A and the front end portion 37A of the second bead portion 37 in the vehicle width direction.

図２において、アッパケース３０の車両幅方向の寸法は、車両前後方向の位置によって異なっている。詳しくは、アッパケース３０の車両幅方向の寸法は、アッパケース３０の後端部において最も大きく、アッパケース３０の前端部において最も小さい。また、アッパケース３０における車両幅方向の寸法が最も大きい部位（後端部）よりも小さい部位に、一対の延長部３６Ｂが設けられている。 In FIG. 2, the dimensions of the upper case 30 in the vehicle width direction differ depending on the position in the vehicle front-rear direction. Specifically, the dimension of the upper case 30 in the vehicle width direction is the largest at the rear end of the upper case 30 and the smallest at the front end of the upper case 30. Further, a pair of extension portions 36B are provided in a portion of the upper case 30 that is smaller than the portion (rear end portion) having the largest dimension in the vehicle width direction.

図１、図３において、アッパケース３０の上面には、複数対の副ビード３２Ａ、３２Ｂ、３２Ｃが設けられている。隣り合う副ビード３２Ｃ、３２Ｂの間の距離をＬ１とし、隣り合う副ビード３２Ａ、３２Ｂの間の距離をＬ２とし、副ビード３２Ａと延長部３６Ｂとの車両幅方向の距離をＬ３としたとき、隣り合う副ビードの間の距離Ｌ１、Ｌ２は、車両幅方向の外側から内側に近づくほど小さくなっている。また、延長部３６Ｂに最も近い副ビード３２Ａと延長部３６Ｂとの車両幅方向の距離Ｌ３は、隣り合う副ビードの間の距離Ｌ１、Ｌ２のいずれよりも小さくされている。 In FIGS. 1 and 3, a plurality of pairs of sub-beads 32A, 32B, and 32C are provided on the upper surface of the upper case 30. When the distance between the adjacent sub-beads 32C and 32B is L1, the distance between the adjacent sub-beads 32A and 32B is L2, and the distance between the sub-bead 32A and the extension 36B in the vehicle width direction is L3. The distances L1 and L2 between the adjacent sub-beads become smaller from the outside to the inside in the vehicle width direction. Further, the distance L3 in the vehicle width direction between the sub-bead 32A closest to the extension portion 36B and the extension portion 36B is smaller than any of the distances L1 and L2 between the adjacent sub-beads.

図２、図６において、アッパケース３０の後端であって第２ビード部３７の車両後方の位置には、車両上方に突出する凸部３３が設けられている。凸部３３は、車両幅方向に延びている。 In FIGS. 2 and 6, a convex portion 33 projecting upward from the vehicle is provided at the rear end of the upper case 30 and at a position behind the vehicle of the second bead portion 37. The convex portion 33 extends in the vehicle width direction.

図２、図６において、第２ビード部３７の後端部は凸部３３に接続されている。第２ビード部３７の後端部は湾曲部３７Ｂを有しており、湾曲部３７Ｂは、車両前後方向から車両幅方向に向きを変えるように湾曲している。 In FIGS. 2 and 6, the rear end portion of the second bead portion 37 is connected to the convex portion 33. The rear end portion of the second bead portion 37 has a curved portion 37B, and the curved portion 37B is curved so as to change its direction from the vehicle front-rear direction to the vehicle width direction.

湾曲部３７Ｂはその車両幅方向端部で凸部３３と接している。湾曲部３７Ｂが凸部３３と接する当接部３７Ｃは、車両幅方向で、一対の延長部３６Ｂの車両幅方向の内側の部位３６Ｃよりも外側に位置している。 The curved portion 37B is in contact with the convex portion 33 at the end portion in the vehicle width direction. The contact portion 37C in which the curved portion 37B contacts the convex portion 33 is located outside the inner portion 36C of the pair of extension portions 36B in the vehicle width direction in the vehicle width direction.

図２において、バッテリケース２１の車両幅方向端部には、バッテリケース２１を車両に取り付けるための車体マウント部２７が設けられている。また、車体マウント部２７は、一対の延長部３６Ｂと車両幅方向で対向している。言い換えれば、車体マウント部２７は、車両幅方向から見た場合に延長部３６Ｂと重なる位置に設けられている。 In FIG. 2, a vehicle body mount portion 27 for attaching the battery case 21 to the vehicle is provided at the end portion of the battery case 21 in the vehicle width direction. Further, the vehicle body mount portion 27 faces the pair of extension portions 36B in the vehicle width direction. In other words, the vehicle body mount portion 27 is provided at a position overlapping the extension portion 36B when viewed from the vehicle width direction.

図２、図４において、アッパケース３０の上面には、車両上方に突出する台座部３４が設けられている。この台座部３４には、電装部品としての図示しないサービスプラグが設けられている。サービスプラグは、図示しないプラグを引き抜く遮断操作を行うことにより通電を遮断する遮断装置である。 In FIGS. 2 and 4, a pedestal portion 34 projecting upward from the vehicle is provided on the upper surface of the upper case 30. The pedestal portion 34 is provided with a service plug (not shown) as an electrical component. A service plug is a shutoff device that shuts off energization by pulling out a plug (not shown).

台座部３４は、延長部３６Ｂと車両幅方向で対向して配置されている。言い換えれば、台座部３４は、車両幅方向から見た場合に延長部３６Ｂと重なる位置に設けられている。 The pedestal portion 34 is arranged so as to face the extension portion 36B in the vehicle width direction. In other words, the pedestal portion 34 is provided at a position overlapping the extension portion 36B when viewed from the vehicle width direction.

以上説明したように、本実施例のバッテリパック２０において、アッパケース３０の上面に、上方に突出し、かつ、車両前後方向に延びる主ビード３５が設けられ、主ビード３５は、その車両前方側の部位を構成する第１ビード部３６と、第１ビード部３６の車両後方側に配置された第２ビード部３７と、第１ビード部３６と第２ビード部３７とを分断するように下方に凹む凹部３５Ａと、を有している。 As described above, in the battery pack 20 of the present embodiment, a main bead 35 that protrudes upward and extends in the front-rear direction of the vehicle is provided on the upper surface of the upper case 30, and the main bead 35 is on the front side of the vehicle. The first bead portion 36 constituting the portion, the second bead portion 37 arranged on the vehicle rear side of the first bead portion 36, and the first bead portion 36 and the second bead portion 37 are separated downward so as to be separated from each other. It has a recessed recess 35A and a recessed recess 35A.

また、第１ビード部３６の後端部に、車両後方に延びる一対の延長部３６Ｂを設け、一対の延長部３６Ｂの間に第２ビード部３７の前端部３７Ａが配置されている。 Further, a pair of extension portions 36B extending to the rear of the vehicle are provided at the rear end portion of the first bead portion 36, and the front end portion 37A of the second bead portion 37 is arranged between the pair of extension portions 36B.

そして、配管５１、５２は、バッテリケース２１の上方であって、配管５１、５２の少なくとも一部が第１ビード部３６と一対の延長部３６Ｂと第２ビード部３７とで囲まれるように配置されている。 The pipes 51 and 52 are arranged above the battery case 21 so that at least a part of the pipes 51 and 52 is surrounded by the first bead portion 36, the pair of extension portions 36B, and the second bead portion 37. Has been done.

この構成により、第１ビード部３６と第２ビード部３７の間に設けられた凹部３５Ａの車両幅方向の両外側を一対の延長部３６Ｂによって補強でき、第１ビード部３６と第２ビード部３７とを延長部３６Ｂによって構造的に結合することができる。また、一対の延長部３６Ｂは、第１ビード部３６および第２ビード部３７よりも車両幅方向外側に位置するので、アッパケース３０の車両幅方向の捻れ振動の発生を抑制できる。このため、凹部３５Ａを設けたことによるアッパケース３０の剛性低下を抑制できる。 With this configuration, both outer sides of the recess 35A provided between the first bead portion 36 and the second bead portion 37 in the vehicle width direction can be reinforced by a pair of extension portions 36B, and the first bead portion 36 and the second bead portion 37 can be reinforced. The 37 can be structurally connected by the extension 36B. Further, since the pair of extension portions 36B are located outside the first bead portion 36 and the second bead portion 37 in the vehicle width direction, it is possible to suppress the occurrence of torsional vibration in the vehicle width direction of the upper case 30. Therefore, it is possible to suppress a decrease in the rigidity of the upper case 30 due to the provision of the recess 35A.

また、配管５１、５２を保持するクランプ部材５３を、アッパケース３０の上面の低い部位である凹部３５Ａに配置したので、車両１の最低地上高を確保することができる。 Further, since the clamp member 53 for holding the pipes 51 and 52 is arranged in the recess 35A which is a low portion on the upper surface of the upper case 30, the minimum ground clearance of the vehicle 1 can be secured.

この結果、車両１の最低地上高を確保でき、かつ、バッテリケース２１の剛性低下を抑制できる。 As a result, the minimum ground clearance of the vehicle 1 can be secured, and the decrease in the rigidity of the battery case 21 can be suppressed.

本実施例のバッテリパック２０において、第１ビード部３６は、その後端部に車両幅方向の寸法が拡張された拡張部３６Ａを有している。また、拡張部３６Ａの車両幅方向の両端部に一対の延長部３６Ｂが接続されている。 In the battery pack 20 of this embodiment, the first bead portion 36 has an expansion portion 36A whose dimensions in the vehicle width direction are expanded at the rear end portion. Further, a pair of extension portions 36B are connected to both ends of the extension portion 36A in the vehicle width direction.

この構成により、第１ビード部３６の後端部に直接一対の延長部３６Ｂを設ける場合と比較して、一対の延長部３６Ｂの相互の距離を拡大でき、アッパケース３０の広い範囲で剛性を向上でき振動を抑制できる。 With this configuration, the distance between the pair of extension portions 36B can be increased as compared with the case where the pair of extension portions 36B are directly provided at the rear end portion of the first bead portion 36, and the rigidity can be increased in a wide range of the upper case 30. It can be improved and vibration can be suppressed.

本実施例のバッテリパック２０において、一対の延長部３６Ｂは、第２ビード部３７の前端部３７Ａと車両幅方向で対向するように形成されている。また、一対の延長部３６Ｂと第２ビード部３７の前端部３７Ａとの間に、凹部３５Ａからアッパケース３０の上面に連通する溝状の水排出路３５Ｂが設けられている。 In the battery pack 20 of this embodiment, the pair of extension portions 36B are formed so as to face the front end portion 37A of the second bead portion 37 in the vehicle width direction. Further, a groove-shaped water discharge path 35B communicating from the recess 35A to the upper surface of the upper case 30 is provided between the pair of extension portions 36B and the front end portion 37A of the second bead portion 37.

この構成により、第１ビード部３６と第２ビード部３７とを一対の延長部３６Ｂによって構造的に接続できるので、アッパケース３０の剛性をより向上でき、アッパケース３０の振動を抑制できる。 With this configuration, the first bead portion 36 and the second bead portion 37 can be structurally connected by a pair of extension portions 36B, so that the rigidity of the upper case 30 can be further improved and the vibration of the upper case 30 can be suppressed.

一対の延長部３６Ｂと第２ビード部３７との間に形成された水排出路３５Ｂにより、凹部３５Ａに溜まった水をアッパケース３０の上面に排出することができる。このため、凹部３５Ａに水が溜まることを防止でき、水によるアッパケース３０の腐食を防止できる。 The water discharged passage 35B formed between the pair of extension portions 36B and the second bead portion 37 allows the water accumulated in the recess 35A to be discharged to the upper surface of the upper case 30. Therefore, it is possible to prevent water from accumulating in the recess 35A, and it is possible to prevent corrosion of the upper case 30 by water.

本実施例のバッテリパック２０において、アッパケース３０の上面であって、一対の延長部３６Ｂの車両幅方向の外側に、上方に突出し、かつ、車両前後方向に延びる一対の副ビード３２Ａが設けられている。一対の延長部３６Ｂの車両幅方向の寸法は、第１ビード部３６の車両幅方向の寸法より小さく設定されている。一対の延長部３６Ｂは、車両幅方向で一対の副ビード３２Ａと第２ビード部３７の前端部３７Ａとの間に配置されている。 In the battery pack 20 of the present embodiment, a pair of auxiliary beads 32A which are the upper surface of the upper case 30 and which protrude upward and extend in the front-rear direction of the vehicle are provided outside the pair of extension portions 36B in the vehicle width direction. ing. The dimension of the pair of extension portions 36B in the vehicle width direction is set to be smaller than the dimension of the first bead portion 36 in the vehicle width direction. The pair of extension portions 36B are arranged between the pair of auxiliary beads 32A and the front end portion 37A of the second bead portion 37 in the vehicle width direction.

この構成により、一対の延長部３６Ｂの車両幅方向の寸法は、第１ビード部３６の車両幅方向の寸法より小さく設定されているので、一対の副ビード３２Ａを一対の延長部３６Ｂに近づけて配置することができ、第１ビード部３６および第２ビード部３７にも一対の副ビード３２Ａを近づけて配置できる。したがって、第１ビード部３６、一対の延長部３６Ｂ、第２ビード部３７および一対の副ビード３２Ａを互いに近づけて配置でき、アッパケース３０の剛性を向上させることができる。 With this configuration, the dimension of the pair of extension portions 36B in the vehicle width direction is set smaller than the dimension of the first bead portion 36 in the vehicle width direction, so that the pair of sub-beads 32A are brought closer to the pair of extension portions 36B. The pair of sub-beads 32A can be arranged close to the first bead portion 36 and the second bead portion 37. Therefore, the first bead portion 36, the pair of extension portions 36B, the second bead portion 37, and the pair of sub-beads 32A can be arranged close to each other, and the rigidity of the upper case 30 can be improved.

また、幅寸法が小さい一対の延長部３６Ｂが一対の副ビード３２Ａと第２ビード部３７の前端部３７Ａとの間に配置されるので、アッパケース３０の上面の面積を減らすことができ、アッパケース３０の剛性を向上させ、振動を抑制できる。 Further, since the pair of extension portions 36B having a small width dimension are arranged between the pair of auxiliary beads 32A and the front end portion 37A of the second bead portion 37, the area of the upper surface of the upper case 30 can be reduced, and the upper surface can be reduced. The rigidity of the case 30 can be improved and vibration can be suppressed.

本実施例のバッテリパック２０において、アッパケース３０の車両幅方向の寸法は、車両前後方向の位置によって異なっている。アッパケース３０における車両幅方向の寸法が最も大きい部位よりも小さい部位に、一対の延長部３６Ｂが設けられている。 In the battery pack 20 of this embodiment, the dimensions of the upper case 30 in the vehicle width direction differ depending on the position in the vehicle front-rear direction. A pair of extension portions 36B are provided in a portion of the upper case 30 that is smaller than the portion having the largest dimension in the vehicle width direction.

この構成により、一対の延長部３６Ｂが設けられている部位において、一対の延長部３６Ｂとアッパケース３０の車両幅方向端部との距離は、車両幅方向の寸法が最も大きい部位よりも短くなる。このため、アッパケース３０の剛性を向上させることができ、アッパケース３０の振動を防止できる。 With this configuration, in the portion where the pair of extension portions 36B is provided, the distance between the pair of extension portions 36B and the end portion in the vehicle width direction of the upper case 30 is shorter than the portion having the largest dimension in the vehicle width direction. .. Therefore, the rigidity of the upper case 30 can be improved, and the vibration of the upper case 30 can be prevented.

本実施例のバッテリパック２０において、アッパケース３０の上面に、複数対の副ビード３２Ａ、３２Ｂ、３２Ｃが設けられている。隣り合う副ビードの間の距離Ｌ１、Ｌ２が、車両幅方向の外側から内側に近づくほど小さくなっている。延長部３６Ｂに最も近い副ビード３２Ａと延長部３６Ｂとの車両幅方向の距離Ｌ３は、隣り合う副ビードの間の距離Ｌ１、Ｌ２のいずれよりも小さくされている。 In the battery pack 20 of this embodiment, a plurality of pairs of auxiliary beads 32A, 32B, and 32C are provided on the upper surface of the upper case 30. The distances L1 and L2 between adjacent sub-beads become smaller as they approach from the outside to the inside in the vehicle width direction. The distance L3 in the vehicle width direction between the sub-bead 32A closest to the extension portion 36B and the extension portion 36B is smaller than any of the distances L1 and L2 between the adjacent sub-beads.

この構成により、アッパケース３０の車両幅方向の内側ほど、副ビード３２Ａ、３２Ｂ、３２Ｃの間の距離が小さくなるので、アッパケース３０の車両幅方向の内側ほど剛性を向上させることができる。 With this configuration, the distance between the sub-beads 32A, 32B, and 32C becomes smaller toward the inside of the upper case 30 in the vehicle width direction, so that the rigidity can be improved toward the inside of the upper case 30 in the vehicle width direction.

本実施例のバッテリパック２０において、アッパケース３０の後端であって第２ビード部３７の車両後方の位置に、車両上方に突出し、かつ、車両幅方向に延びる凸部３３が設けられている。第２ビード部３７の後端部が凸部３３に接続されている。第２ビード部３７の後端部は、車両前後方向から車両幅方向に向きを変えるように湾曲する湾曲部３７Ｂを有している。 In the battery pack 20 of this embodiment, a convex portion 33 that protrudes upward of the vehicle and extends in the vehicle width direction is provided at the rear end of the upper case 30 and at a position behind the vehicle of the second bead portion 37. .. The rear end of the second bead portion 37 is connected to the convex portion 33. The rear end portion of the second bead portion 37 has a curved portion 37B that is curved so as to change the direction from the vehicle front-rear direction to the vehicle width direction.

この構成により、上方に突出することで剛性が高められた凸部３３に第２ビード部３７を接続しているので、アッパケース３０の剛性をさらに向上させることができ、アッパケース３０の振動を抑制できる。 With this configuration, since the second bead portion 37 is connected to the convex portion 33 whose rigidity is increased by protruding upward, the rigidity of the upper case 30 can be further improved, and the vibration of the upper case 30 can be suppressed. Can be suppressed.

凹部３５Ａから水排出路３５Ｂを通して後方に排出された水を、凸部３３と湾曲部３７Ｂとによって車両幅方向の外側に向かうように案内でき、水が再び凹部３５Ａに戻ることを抑制できる。 The water discharged rearward from the concave portion 35A through the water discharge path 35B can be guided toward the outside in the vehicle width direction by the convex portion 33 and the curved portion 37B, and the water can be prevented from returning to the concave portion 35A again.

アッパケース３０の後端に凸部３３が設けられていることにより、主ビード３５の車両前後方向の長さを短くすることができ、主ビード３５の剛性を高めることができる。このため、アッパケース３０の剛性を向上させることができ、アッパケース３０の振動を抑制できる。 By providing the convex portion 33 at the rear end of the upper case 30, the length of the main bead 35 in the vehicle front-rear direction can be shortened, and the rigidity of the main bead 35 can be increased. Therefore, the rigidity of the upper case 30 can be improved, and the vibration of the upper case 30 can be suppressed.

本実施例のバッテリパック２０において、湾曲部３７Ｂが凸部３３と接する当接部３７Ｃは、車両幅方向で、一対の延長部３６Ｂの車両幅方向の内側の部位３６Ｃよりも外側に位置している。 In the battery pack 20 of this embodiment, the contact portion 37C in which the curved portion 37B contacts the convex portion 33 is located outside the inner portion 36C of the pair of extension portions 36B in the vehicle width direction in the vehicle width direction. There is.

この構成により、湾曲部３７Ｂにおける凸部３３との当接部３７Ｃの位置が、一対の延長部３６Ｂの内側の部位３６Ｃよりも車両幅方向で外側に配置されているので、凹部３５Ａから水排出路３５Ｂを通して後方に排出された水を、湾曲部３７Ｂを通って車両幅方向の外側に向かうように案内して、水が再び凹部３５Ａに戻ることをより抑制できる。また、延長部３６Ｂと第２ビード部３７との距離を短くでき、かつ、凸部３３と湾曲部３７Ｂとの接合面積を拡大して凸部３３と第２ビード部３７とをより強固に結合でき、アッパケース３０の剛性をより向上させることができる。 With this configuration, the position of the contact portion 37C with the convex portion 33 in the curved portion 37B is arranged outside the inner portion 36C of the pair of extension portions 36B in the vehicle width direction, so that water is discharged from the concave portion 35A. It is possible to further prevent the water from returning to the recess 35A by guiding the water discharged rearward through the road 35B toward the outside in the vehicle width direction through the curved portion 37B. Further, the distance between the extension portion 36B and the second bead portion 37 can be shortened, and the joint area between the convex portion 33 and the curved portion 37B is expanded to more firmly connect the convex portion 33 and the second bead portion 37. Therefore, the rigidity of the upper case 30 can be further improved.

本実施例のバッテリパック２０において、バッテリケース２１の車両幅方向端部に、バッテリケース２１を車両に取り付けるための車体マウント部２７が設けられている。車体マウント部２７は、一対の延長部３６Ｂと車両幅方向で対向している。 In the battery pack 20 of this embodiment, a vehicle body mount portion 27 for attaching the battery case 21 to the vehicle is provided at the end portion of the battery case 21 in the vehicle width direction. The vehicle body mount portion 27 faces the pair of extension portions 36B in the vehicle width direction.

この構成により、車体マウント部２７が一対の延長部３６Ｂに車両幅方向で対向して重なるように配置されているので、バッテリケース２１における車体マウント部２７材が配置された部位は、剛性が高くなる一方で車体の振動によるバッテリケース２１の振動の起点となる部位である。このマウント部材に対して最も近い位置に延長部３６Ｂが設けられているので、バッテリケース２１の振動を抑制できる。 With this configuration, the vehicle body mount portions 27 are arranged so as to face each other and overlap the pair of extension portions 36B in the vehicle width direction. Therefore, the portion of the battery case 21 where the vehicle body mount portion 27 material is arranged has high rigidity. On the other hand, it is a part that becomes a starting point of vibration of the battery case 21 due to vibration of the vehicle body. Since the extension portion 36B is provided at the position closest to the mount member, the vibration of the battery case 21 can be suppressed.

本実施例のバッテリパック２０において、アッパケース３０の上面に、電装部品を取り付けられ、車両上方に突出する台座部３４が設けられている。台座部３４は、延長部３６Ｂと車両幅方向で対向している。 In the battery pack 20 of this embodiment, an electrical component is attached to the upper surface of the upper case 30, and a pedestal portion 34 protruding upward from the vehicle is provided. The pedestal portion 34 faces the extension portion 36B in the vehicle width direction.

この構成により、アッパケース３０における車両幅方向の端部と延長部３６Ｂとの間の平坦な部分の面積を少なくでき、アッパケース３０の剛性を向上させることができる。 With this configuration, the area of the flat portion between the end portion in the vehicle width direction and the extension portion 36B of the upper case 30 can be reduced, and the rigidity of the upper case 30 can be improved.

台座部３４は、取り付けられた電装部品を支持するための剛性を有しているので、その上面に台座部３４を設けることによりアッパケース３０の剛性を向上させることができる。 Since the pedestal portion 34 has rigidity for supporting the attached electrical components, the rigidity of the upper case 30 can be improved by providing the pedestal portion 34 on the upper surface thereof.

本発明の実施例を開示したが、当業者によっては本発明の範囲を逸脱することなく変更が加えられうることは明白である。すべてのこのような修正および等価物が次の請求項に含まれることが意図されている。 Although the embodiments of the present invention have been disclosed, it is clear that some skilled in the art can make changes without departing from the scope of the present invention. All such modifications and equivalents are intended to be included in the following claims.

１...車両、２...車体、２Ａ...フロアパネル、２０...バッテリパック、２１...バッテリケース、２７...車体マウント部、３０...アッパケース、３２Ａ，３２Ｂ，３２Ｃ...副ビード、３３...凸部、３４...台座部、３５...主ビード、３５Ａ...凹部、３５Ｂ...水排出路、３６...第１ビード部、３６Ａ...拡張部、３６Ｂ...延長部、３６Ｃ...部位、３７...第２ビード部、３７Ａ...前端部、３７Ｂ...湾曲部、３７Ｃ...当接部、５１，５２...配管、５３...クランプ部材、６１...バッテリモジュール、Ｌ１，Ｌ２...距離 1 ... vehicle, 2 ... car body, 2A ... floor panel, 20 ... battery pack, 21 ... battery case, 27 ... car body mount, 30 ... upper case, 32A, 32B, 32C ... secondary bead, 33 ... convex, 34 ... pedestal, 35 ... main bead, 35A ... concave, 35B ... water drainage channel, 36 ... 1st Bead part, 36A ... expansion part, 36B ... extension part, 36C ... part, 37 ... second bead part, 37A ... front end part, 37B ... curved part, 37C ... Contact part, 51, 52 ... piping, 53 ... clamp member, 61 ... battery module, L1, L2 ... distance

Claims (10)

複数のバッテリモジュールと、
車体のフロアパネルの下方に配置され、前記バッテリモジュールを収納するバッテリケースと、を備え、
前記バッテリケースは前記バッテリモジュールを上方から覆うアッパケースを有し、
車両前後方向に延びる配管が前記フロアパネルと前記アッパケースとで挟まれるように配索され、
前記アッパケースの上面に前記配管を保持するクランプ部材が設けられたバッテリパックであって、
前記アッパケースの上面に、上方に突出し、かつ、車両前後方向に延びる主ビードが設けられ、
前記主ビードは、その車両前方側の部位を構成する第１ビード部と、前記第１ビード部の車両後方側に配置された第２ビード部と、前記第１ビード部と前記第２ビード部とを分断するように下方に凹む凹部と、を有し、
前記第１ビード部の後端部に、車両後方に延びる一対の延長部を設け、一対の前記延長部の間に前記第２ビード部の前端部が配置され、
前記配管は、前記バッテリケースの上方であって、前記配管の少なくとも一部が前記第１ビード部と一対の前記延長部と前記第２ビード部とで囲まれるように配置されていることを特徴とするバッテリパック。 With multiple battery modules
It is provided below the floor panel of the vehicle body and includes a battery case for accommodating the battery module.
The battery case has an upper case that covers the battery module from above.
Piping extending in the front-rear direction of the vehicle is arranged so as to be sandwiched between the floor panel and the upper case.
A battery pack in which a clamp member for holding the pipe is provided on the upper surface of the upper case.
A main bead that projects upward and extends in the front-rear direction of the vehicle is provided on the upper surface of the upper case.
The main bead includes a first bead portion constituting a portion on the front side of the vehicle, a second bead portion arranged on the rear side of the vehicle of the first bead portion, the first bead portion and the second bead portion. Has a recess, which is recessed downward so as to divide and
A pair of extension portions extending to the rear of the vehicle is provided at the rear end portion of the first bead portion, and the front end portion of the second bead portion is arranged between the pair of the extension portions.
The pipe is arranged above the battery case so that at least a part of the pipe is surrounded by the first bead portion, the pair of extension portions, and the second bead portion. Battery pack. 前記第１ビード部は、その後端部に車両幅方向の寸法が拡張された拡張部を有し、
前記拡張部の車両幅方向の両端部に一対の前記延長部が接続されていることを特徴とする請求項１に記載のバッテリパック。 The first bead portion has an extension portion whose dimensions in the vehicle width direction are expanded at the rear end portion.
The battery pack according to claim 1, wherein the pair of extension portions are connected to both ends of the extension portion in the vehicle width direction. 一対の前記延長部は、前記第２ビード部の前端部と車両幅方向で対向するように形成され、
一対の前記延長部と前記第２ビード部の前端部との間に、前記凹部から前記アッパケースの上面に連通する溝状の水排出路が設けられていることを特徴とする請求項１または請求項２に記載のバッテリパック。 The pair of the extension portions are formed so as to face the front end portion of the second bead portion in the vehicle width direction.
1. The battery pack according to claim 2. 前記アッパケースの上面であって、一対の前記延長部の車両幅方向の外側に、上方に突出し、かつ、車両前後方向に延びる一対の副ビードが設けられ、
一対の前記延長部の車両幅方向の寸法は、前記第１ビード部の車両幅方向の寸法より小さく設定され、
一対の前記延長部は、車両幅方向で一対の前記副ビードと前記第２ビード部の前端部との間に配置されていることを特徴とする請求項１から請求項３の何れか１項に記載のバッテリパック。 On the upper surface of the upper case, a pair of auxiliary beads that project upward and extend in the front-rear direction of the vehicle are provided on the outside of the pair of the extension portions in the vehicle width direction.
The dimension of the pair of the extension portions in the vehicle width direction is set to be smaller than the dimension of the first bead portion in the vehicle width direction.
Any one of claims 1 to 3, wherein the pair of the extension portions is arranged between the pair of the sub-beads and the front end portion of the second bead portion in the vehicle width direction. Battery pack described in. 前記アッパケースの車両幅方向の寸法は、車両前後方向の位置によって異なり、
前記アッパケースにおける車両幅方向の寸法が最も大きい部位よりも小さい部位に、一対の前記延長部が設けられていることを特徴とする請求項１から請求項４の何れか１項に記載のバッテリパック。 The dimensions of the upper case in the vehicle width direction differ depending on the position in the vehicle front-rear direction.
The battery according to any one of claims 1 to 4, wherein a pair of the extension portions is provided in a portion of the upper case whose dimension in the vehicle width direction is smaller than the portion having the largest dimension. pack. 前記アッパケースの上面に、複数対の前記副ビードが設けられ、
隣り合う前記副ビードの間の距離が、車両幅方向の外側から内側に近づくほど小さくなり、
前記延長部に最も近い前記副ビードと前記延長部との車両幅方向の距離は、隣り合う前記副ビードの間の距離のいずれよりも小さいことを特徴とする請求項４に記載のバッテリパック。 A plurality of pairs of the secondary beads are provided on the upper surface of the upper case.
The distance between the adjacent sub-beads decreases from the outside to the inside in the vehicle width direction.
The battery pack according to claim 4, wherein the distance between the sub-bead closest to the extension portion and the extension portion in the vehicle width direction is smaller than any of the distances between the adjacent sub-beads. 前記アッパケースの後端であって前記第２ビード部の車両後方の位置に、車両上方に突出し、かつ、車両幅方向に延びる凸部が設けられ、
前記第２ビード部の後端部が前記凸部に接続され、
前記第２ビード部の後端部は、車両前後方向から車両幅方向に向きを変えるように湾曲する湾曲部を有することを特徴とする請求項１から請求項６の何れか１項に記載のバッテリパック。 At the rear end of the upper case and at the position behind the vehicle of the second bead portion, a convex portion that protrudes upward of the vehicle and extends in the vehicle width direction is provided.
The rear end portion of the second bead portion is connected to the convex portion, and the rear end portion is connected to the convex portion.
The method according to any one of claims 1 to 6, wherein the rear end portion of the second bead portion has a curved portion that is curved so as to change the direction from the front-rear direction of the vehicle to the width direction of the vehicle. Battery pack. 前記湾曲部が前記凸部と接する当接部は、車両幅方向で、一対の前記延長部の車両幅方向の内側の部位よりも外側に位置していることを特徴とする請求項７に記載のバッテリパック。 The seventh aspect of claim 7, wherein the abutting portion in which the curved portion contacts the convex portion is located outside the inner portion of the pair of the extension portions in the vehicle width direction in the vehicle width direction. Battery pack. 前記バッテリケースの車両幅方向端部に、前記バッテリケースを車両に取り付けるための車体マウント部が設けられ、
前記車体マウント部は、一対の前記延長部と車両幅方向で対向していること特徴とする請求項１から請求項８の何れか１項に記載のバッテリパック。 A vehicle body mount portion for attaching the battery case to the vehicle is provided at the end portion of the battery case in the vehicle width direction.
The battery pack according to any one of claims 1 to 8, wherein the vehicle body mount portion faces the pair of extension portions in the vehicle width direction. 前記アッパケースの上面に、電装部品を取り付けられ、車両上方に突出する台座部が設けられ、
前記台座部は、前記延長部と車両幅方向で対向していることを特徴とする請求項１から請求項９の何れか１項に記載のバッテリパック。 Electrical components are attached to the upper surface of the upper case, and a pedestal portion protruding above the vehicle is provided.
The battery pack according to any one of claims 1 to 9, wherein the pedestal portion faces the extension portion in the vehicle width direction.
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JP2000344026A (en) * 1999-06-02 2000-12-12 Nissan Motor Co Ltd Wire and tubular part laying structure of electric automobile
JP2009083597A (en) * 2007-09-28 2009-04-23 Mitsubishi Motors Corp Electric automobile
JP2011006052A (en) * 2009-05-26 2011-01-13 Nissan Motor Co Ltd Vehicle battery assembly cooling structure, and battery assembly with water jacket
WO2014038346A1 (en) * 2012-09-04 2014-03-13 日産自動車株式会社 Vehicle body structure of electric vehicle

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JP6996352B2 (en) 2018-03-06 2022-01-17 トヨタ自動車株式会社 Vehicle lower body structure

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* Cited by examiner, † Cited by third party
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JP2000344026A (en) * 1999-06-02 2000-12-12 Nissan Motor Co Ltd Wire and tubular part laying structure of electric automobile
JP2009083597A (en) * 2007-09-28 2009-04-23 Mitsubishi Motors Corp Electric automobile
JP2011006052A (en) * 2009-05-26 2011-01-13 Nissan Motor Co Ltd Vehicle battery assembly cooling structure, and battery assembly with water jacket
WO2014038346A1 (en) * 2012-09-04 2014-03-13 日産自動車株式会社 Vehicle body structure of electric vehicle

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