JP7338519B2 - battery pack - Google Patents

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Publication number
JP7338519B2
JP7338519B2 JP2020041903A JP2020041903A JP7338519B2 JP 7338519 B2 JP7338519 B2 JP 7338519B2 JP 2020041903 A JP2020041903 A JP 2020041903A JP 2020041903 A JP2020041903 A JP 2020041903A JP 7338519 B2 JP7338519 B2 JP 7338519B2
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width direction
vehicle
vehicle width
pair
bead
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JP2021142832A (en
JP2021142832A5 (en
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皓太 ▲高▼市
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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    • 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

Description

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

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 a vehicle such as an automobile, a battery for supplying electric power to a driving motor is sometimes 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 disclosed in Patent Literature 1, a protrusion projecting upward is formed on the upper surface of the battery case at the center in the vehicle width direction. The battery pack described in Patent Document 1 can improve the rigidity of the battery case by causing the protrusions on the upper surface of the battery case to function as reinforcing beads.

特開２０１９－１５１２９４号公報JP 2019-151294 A

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。 In some cases, a brake pipe or the like for supplying hydraulic oil to the brakes of the rear wheels is 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 pipes such as brake pipes between the floor panel and the battery pack, the battery pack is installed in order to install the pipes. The mounting position was changed to a lower position, and there was a risk that this would make it impossible to secure the height from the ground to the bottom of the vehicle (minimum ground clearance) necessary 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。 In addition, in the technique described in Patent Document 1, if the projecting amount of the projection on the upper surface of the battery case is reduced to secure the installation space for the piping, there is a risk that the rigidity of the battery case will decrease.

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。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a battery pack capable of securing a minimum ground clearance of a vehicle and suppressing deterioration of the rigidity of the 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, and a battery case disposed below a floor panel of a vehicle body and housing the battery modules, the battery case having an upper case covering the battery modules from above, A battery pack in which a pipe extending in a longitudinal direction of a vehicle is routed so as to be sandwiched between the floor panel and the upper case, and a clamp member for holding the pipe is provided on an upper surface of the upper case, the upper case comprising: A main bead projecting upward and extending in the vehicle front-rear direction is provided on the upper surface of the and a concave portion recessed downward so as to divide the first bead portion and the second bead portion. a pair of extension portions extending to the above, the front end portion of the second bead portion is disposed between the pair of extension portions, the pipe is above the battery case, and at least a portion of the pipe extends from the It is characterized by being surrounded by the first bead portion, the pair of 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 can suppress the deterioration of 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 vehicle floor panel and battery pack having 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 one 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。3 is a cross-sectional view of the battery pack shown in FIG. 2 taken along the direction of arrows III-III. 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。4 is a cross-sectional view of the battery pack shown in FIG. 2 taken along the IV-IV direction. 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。5 is a cross-sectional view of the battery pack shown in FIG. 2 taken along the VV direction. 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。6 is a cross-sectional view of the battery pack shown in FIG. 2 taken along the line VI-VI.

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。 A battery pack according to an embodiment of the present invention includes a plurality of battery modules and a battery case that is arranged below a floor panel of a vehicle body and stores the battery modules. The battery case covers the battery modules from above. A battery pack having an upper case, wherein pipes extending in the longitudinal direction of the vehicle are routed 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, the upper case comprising: A main bead projecting upward and extending in the vehicle front-rear direction is provided on the upper surface of the case. A pair of grooves extending rearward of the vehicle are provided at the rear end of the first bead portion, and have a second bead portion disposed thereon and a concave portion recessed downward so as to divide the first bead portion and the second bead portion. An extension is provided, the front end of the second bead is disposed between the pair of extensions, the pipe is above the battery case, and at least a portion of the pipe extends between the first bead and the pair of extensions. It is characterized by being 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 ensure the minimum ground clearance of the vehicle, and can suppress a decrease in 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。 A battery pack according to an embodiment of the present invention will be described below with reference to the drawings. 1 to 6, the vertical, front, rear, left, and right directions are the vertical, front, rear, left, and right directions of the battery pack installed in the vehicle, the horizontal direction is the direction perpendicular to the front-rear direction of the vehicle, and the height direction of the battery pack is the vertical direction. Up-down 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 diagrams showing a battery pack according to one 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 explained. In FIG. 1 , a vehicle 1 has a vehicle body 2 . The vehicle body 2 has a floor panel 2A at its lower portion. A recess 2B is provided in the rear portion of the floor panel 2A, and this recess 2B is recessed downward. A spare tire (not shown) is accommodated in the recess 2B. The floor panel 2A is provided with a pair of left and right side members 11 extending in the longitudinal direction of the vehicle. Cross members 13 and 14 extending in the vehicle width direction are connected to the side members 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 below the floor panel 2A. The battery pack 20 supplies electric power to a motor (not shown) of the vehicle 1 . Battery pack 20 is arranged between a pair of side members 11 . Cross member 13 is arranged to traverse the vicinity of the upper portion of the front end of battery pack 20 in the vehicle width direction. Cross member 14 is arranged to traverse in the vehicle width direction the upper portion of the rear portion of the intermediate portion of battery pack 20 in the vehicle front-rear direction. Note that FIG. 1 shows a state in which the battery pack 20 is seen through a portion of the floor panel 2A at the upper portion of the battery pack 20. As shown in FIG.

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 that accommodates the plurality of battery modules 61 . Battery case 21 is generally formed in a rectangular shape in 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。 Battery case 21 consists of lower case 40 and upper case 30 . The upper case 30 constitutes the upper portion of the battery case 21 and covers the battery module 61 from above. Lower case 40 forms a lower portion of battery case 21 and holds battery module 61 . Lower case 40 covers the bottom and side surfaces of 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。 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. Pipes 51 and 52 extend in the longitudinal direction of the vehicle so as to be sandwiched between floor panel 2A and upper case 30 . A clamp member 53 is provided on the upper surface of the upper case 30 and 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, the upper surface of the upper case 30 is provided with a main bead 35 extending in the longitudinal direction of the vehicle. The main bead 35 protrudes upward from the reference surface 32 of the upper case 30 . Here, the reference plane 32 is a flat portion of the upper surface of the upper case 30 on 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 forming a portion on the vehicle front side, a 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. and a concave portion 35</b>A 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 rearward of the vehicle are provided at the rear end portion of the first bead portion 36 . A 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, 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 in the recessed portion 35A.

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。 2 and 4, the first bead portion 36 has an extended portion 36A at its rear end portion, the dimension of which is increased in the vehicle width direction. A pair of extension portions 36B are connected to both end portions of the extension portion 36A in the vehicle width direction. In this manner, 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 dimension in the vehicle width direction is increased.

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。 2 and 5, the pair of extension portions 36B are formed to face the front end portion 37A of the second bead portion 37 in the vehicle width direction. Between the pair of extensions 36B and the front end portion of the second bead portion 37, a groove-shaped water discharge passage 35B is provided that communicates with the upper surface of the upper case 30 from the recess 35A.

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。 2, a pair of sub-beads 32A that protrude upward and extend in the vehicle front-rear direction 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 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 sub-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 dimension of the upper case 30 in the vehicle width direction differs depending on the position in the vehicle front-rear direction. Specifically, the dimension of upper case 30 in the vehicle width direction is the largest at the rear end of upper case 30 and the smallest at the front end of upper case 30 . A pair of extension portions 36B are provided at a portion of the upper case 30 that is smaller than the portion (rear end portion) where the dimension in the vehicle width direction is the largest.

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 FIG. 3 , the upper surface of the upper case 30 is provided with a plurality of pairs of sub-beads 32A, 32B, 32C. When the distance between adjacent sub-beads 32C and 32B is L1, the distance between adjacent sub-beads 32A and 32B is L2, and the distance in the vehicle width direction between sub-bead 32A and extension portion 36B is L3, The distances L1 and L2 between adjacent sub-beads become smaller from the outer side to the inner side 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 the distances L1 and L2 between 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。 2 and 6, a convex portion 33 is provided at the rear end of the upper case 30 and behind the second bead portion 37 with respect to the vehicle. 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。 2 and 6, the rear end portion of the second bead portion 37 is connected to the convex portion 33. As shown in FIG. A 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 its vehicle width direction end portion. A contact portion 37C, where the curved portion 37B contacts the convex portion 33, is positioned 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 mounting the battery case 21 to the vehicle is provided at the vehicle width direction end portion of the battery case 21 . In addition, 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 in 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。 2 and 4, the upper surface of the upper case 30 is provided with a pedestal portion 34 that protrudes upward from the vehicle. The pedestal portion 34 is provided with a service plug (not shown) as an electrical component. The service plug is a disconnecting device that disconnects power 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 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 in 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 this embodiment, the upper surface of the upper case 30 is provided with the main bead 35 that protrudes upward and extends in the longitudinal direction of the vehicle. A first bead portion 36 that constitutes a part, a second bead portion 37 that is arranged on the vehicle rear side of the first bead portion 36, and a downward portion that divides the first bead portion 36 and the second bead portion 37. It has recessed part 35A which dents.

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。 A pair of extension portions 36B extending rearward 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. It is

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 in the vehicle width direction of the recessed portion 35A provided between the first bead portion 36 and the second bead portion 37 can be reinforced by the pair of extension portions 36B. 37 can be structurally coupled by extension 36B. In addition, 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, the occurrence of torsional vibration of the upper case 30 in the vehicle width direction can be suppressed. Therefore, it is possible to suppress a decrease in 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 that holds the pipes 51 and 52 is arranged in the recess 35A, which is a lower portion of 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 ensured, and a decrease in 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 the present embodiment, the first bead portion 36 has an extension portion 36A at its rear end portion, the dimension of which is increased in the vehicle width direction. 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 compared to the case where the pair of extension portions 36B are provided directly at the rear end portion of the first bead portion 36, and the rigidity of the upper case 30 can be increased over a wide range. 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 to face the front end portion 37A of the second bead portion 37 in the vehicle width direction. Between the pair of extensions 36B and the front end portion 37A of the second bead portion 37, a groove-shaped water discharge passage 35B communicating from the recess 35A to the upper surface of the upper case 30 is provided.

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 the pair of extension portions 36B, so that the rigidity of the upper case 30 can be further improved, and 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。 A water discharge path 35B formed between the pair of extensions 36B and the second bead portion 37 allows water collected in the recess 35A to be discharged to the upper surface of the upper case 30. As shown in FIG. Therefore, it is possible to prevent water from accumulating in the concave portion 35A, and to prevent corrosion of the upper case 30 due to 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 this embodiment, a pair of secondary beads 32A projecting upward and extending in the vehicle front-rear direction are provided on the upper surface of the upper case 30 and 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 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 sub-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. A pair of sub-beads 32A can be arranged close to the first bead portion 36 and the second bead portion 37 as well. 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。 In addition, since the pair of extension portions 36B having a small width dimension is arranged between the pair of sub-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. Vibration can be suppressed by improving the rigidity of the case 30 .

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 dimension of the upper case 30 in the vehicle width direction varies depending on the position in the vehicle front-rear direction. A pair of extension portions 36B are provided at 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, the distance between the pair of extension portions 36B and the end portion of the upper case 30 in the vehicle width direction 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 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, the upper surface of the upper case 30 is provided with a plurality of pairs of sub-beads 32A, 32B, 32C. The distances L1 and L2 between adjacent sub-beads become smaller from the outer side to the inner side in the vehicle width direction. A 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 both the distances L1 and L2 between 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 inner side of the upper case 30 in the vehicle width direction, so that the rigidity can be improved toward the inner side 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 from the vehicle and extends in the vehicle width direction is provided at the rear end of the upper case 30 and at a vehicle rearward position of the second bead portion 37 . . A rear end portion of the second bead portion 37 is connected to the convex portion 33 . A rear end portion of the second bead portion 37 has a curved portion 37B that curves so as to turn 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, the second bead portion 37 is connected to the convex portion 33 whose rigidity is increased by protruding upward. 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 convex portion 33 and the curved portion 37B can guide the water discharged rearward from the concave portion 35A through the water discharge passage 35B toward the outside in the vehicle width direction, thereby suppressing the water from returning to the concave portion 35A.

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。 Since the projection 33 is provided at the rear end of the upper case 30, the length of the main bead 35 in the longitudinal direction of the vehicle 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 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 the present embodiment, the contact portion 37C where 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 of the curved portion 37B with the convex portion 33 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. The water discharged rearward through the path 35B is guided outward in the vehicle width direction through the curved portion 37B, thereby further suppressing the water from returning to the recessed portion 35A. In addition, the distance between the extension portion 36B and the second bead portion 37 can be shortened, and the bonding area between the convex portion 33 and the curved portion 37B can be increased, so that the convex portion 33 and the second bead portion 37 can be more strongly connected. 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 vehicle width direction end portion of the battery case 21 . 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 portion 27 is arranged so as to face and overlap the pair of extension portions 36B in the vehicle width direction. On the other hand, it is the starting point of vibration of the battery case 21 due to the vibration of the vehicle body. Since the extension portion 36B is provided at the position closest to the mount member, 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, the upper surface of the upper case 30 is provided with a pedestal portion 34 on which electrical components are attached and which protrudes upward from the vehicle. 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 of the upper case 30 and the extension portion 36B 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 34 has rigidity for supporting the attached electrical components, the rigidity of the upper case 30 can be improved by providing the pedestal 34 on its upper surface.

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 embodiments of the present invention have been disclosed, it will be apparent that modifications may be made by those skilled in the art without departing from the scope of the 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 DESCRIPTION OF SYMBOLS 1... vehicle, 2... vehicle body, 2A... floor panel, 20... battery pack, 21... battery case, 27... vehicle body mount part, 30... upper case, 32A, 32B, 32C... sub-bead, 33... convex part, 34... pedestal part, 35... main bead, 35A... concave part, 35B... water discharge path, 36... first Bead portion, 36A... Extension portion, 36B... Extension portion, 36C... Site, 37... Second bead portion, 37A... Front end portion, 37B... Curved portion, 37C... Abutting portion, 51, 52... Piping, 53... Clamping 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。 a plurality of battery modules;
a battery case disposed below a floor panel of the vehicle body and housing the battery module,
The battery case has an upper case covering the battery module from above,
a pipe extending in the longitudinal direction of the vehicle is routed so as to be sandwiched between the floor panel and the upper case;
A battery pack provided with a clamp member for holding the pipe on the upper surface of the upper case,
A main bead projecting upward and extending in the vehicle front-rear direction is provided on the upper surface of the upper case,
The main bead includes a first bead portion forming a portion on the vehicle front side, a second bead portion arranged on the vehicle rear side of the first bead portion, and the first bead portion and the second bead portion. and a recess recessed downward so as to divide the
A pair of extension portions extending rearward 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 disposed between the pair of extension portions,
The pipe is arranged above the battery case so that at least 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, at its rear end portion, an enlarged portion with an enlarged dimension in the vehicle width direction,
2. 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 extension portions are formed to face the front end portion of the second bead portion in the vehicle width direction,
2. A groove-shaped water discharge passage communicating from the recess to the upper surface of the upper case is provided between the pair of extension portions and the front end portion of the second bead portion. 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。 A pair of sub beads that protrude upward and extend in the vehicle front-rear direction are provided on the upper surface of the upper case and on the outer side of the pair of extension portions in the vehicle width direction,
The dimension of the pair of extension portions in the vehicle width direction is set smaller than the dimension of the first bead portion in the vehicle width direction,
4. The pair of extension portions is arranged between the pair of 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 dimension of the upper case in the vehicle width direction varies depending on the position in the vehicle front-rear direction,
5. The battery according to any one of claims 1 to 4, wherein the pair of extension portions are provided at a portion of the upper case that is smaller than a portion having the largest dimension in the vehicle width direction. 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 sub-beads are provided on the upper surface of the upper case,
The distance between the adjacent sub-beads becomes smaller from the outside to the inside in the vehicle width direction,
5. The battery pack according to claim 4, wherein a distance in the vehicle width direction between the sub-bead closest to the extension and the extension is smaller than any distance between 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。 A protrusion projecting upward from the vehicle and extending in the vehicle width direction is provided at a rear end of the upper case and at a vehicle rear position of the second bead portion,
A rear end portion of the second bead portion is connected to the convex portion,
The rear end portion of the second bead portion has a curved portion that curves so as to change direction from the vehicle front-rear direction to the vehicle width direction. 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。 8. A contact portion where the curved portion is in contact with the convex portion is positioned outside, in the vehicle width direction, an inner portion of the pair of extension portions 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 mounting portion for attaching the battery case to the vehicle is provided at a vehicle width direction end portion of the battery case;
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。 A pedestal is provided on the upper surface of the upper case to which electrical components are attached and which protrudes upward from the vehicle,
The battery pack according to any one of claims 1 to 9, wherein the pedestal faces the extension 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

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