JP2009035126A - Battery box structure for hybrid electric vehicle - Google Patents

Battery box structure for hybrid electric vehicle Download PDF

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Publication number
JP2009035126A
JP2009035126A JP2007201020A JP2007201020A JP2009035126A JP 2009035126 A JP2009035126 A JP 2009035126A JP 2007201020 A JP2007201020 A JP 2007201020A JP 2007201020 A JP2007201020 A JP 2007201020A JP 2009035126 A JP2009035126 A JP 2009035126A
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battery
device group
related device
vehicle
frame
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JP4465667B2 (en
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Kazuhiro Kodaira
和宏 小平
Toshiyuki Seki
俊之 関
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Isuzu Motors Ltd
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Isuzu Motors Ltd
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Priority to JP2007201020A priority Critical patent/JP4465667B2/en
Priority to PCT/JP2008/063013 priority patent/WO2009016976A1/en
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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—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
    • H01M50/249—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0455—Removal or replacement of the energy storages
    • B60K2001/0461—Removal or replacement of the energy storages from the side
    • 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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery box structure for a hybrid electric vehicle capable of facilitating maintenance work, and preventing a battery from being flooded when running on a flooded road. <P>SOLUTION: This battery box structure includes a lower frame 5 and an upper box 8. A battery-related apparatus group 40 for a vehicle is mounted on a vehicle body side. The lower frame 5 partitions the first housing area 50 and is attached to a side member 21. The upper box 8 partitions the second housing area 80, and is placed on an upper surface of the lower frame 5. The battery-related apparatus group 40 for the vehicle includes the first battery-related apparatus group 41 of which requirement to waterproof is low and maintenance frequency is high and the second battery-related apparatus group 45 of which requirement to waterproof is high and maintenance frequency is low. The second battery-related apparatus group 45 includes a battery 47. The first battery-related apparatus group 41 is housed in the first housing area 50. The second battery-related apparatus group 45 is housed in the second housing area 80. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、ハイブリッド電気自動車のバッテリボックス構造に関する。   The present invention relates to a battery box structure for a hybrid electric vehicle.

特開２００２−６７７０５号公報には、ラジエータと冷却水ポンプとインバータとバッテリとを含む主要機器を１つの筐体に収納し、この筐体をトラックの荷箱の床下に取り付けたハイブリッド電気トラックが記載されている。主要機器のうちインバータとバッテリとは、水跳ねを起こす前輪から最も遠い筐体の最後部に配置される。   Japanese Patent Laid-Open No. 2002-67705 discloses a hybrid electric truck in which main devices including a radiator, a cooling water pump, an inverter, and a battery are housed in one housing, and this housing is attached under the floor of the truck's packing box. Are listed. Among the main devices, the inverter and the battery are arranged at the rearmost part of the casing farthest from the front wheel that causes water splash.

また、実用新案登録第２５５８５５５号公報には、バッテリトレイを出し入れ可能なバッテリトレイ収容空間を車両に設け、バッテリトレイにバッテリを収容する構造が記載されている。   Japanese Utility Model Registration No. 2558555 describes a structure in which a battery tray housing space in which a battery tray can be taken in and out is provided in a vehicle, and the battery is housed in the battery tray.

特開２００２−６７７０５号公報JP 2002-67705 A 実用新案登録第２５５８５５５号公報Utility Model Registration No. 2558555

しかし、特開２００２−６７７０５公報に示された構造では、１つの筐体にすべての主要機器が収容され、且つ主要機器にはメンテナンスの頻度の高い機器と低い機器とが混在するため、メンテナンスの頻度の高い機器を交換等する際に他の機器（メンテナンスの頻度の低い機器）が邪魔となり作業の煩雑化を招くおそれがある。   However, in the structure shown in Japanese Patent Laid-Open No. 2002-67705, all the main devices are accommodated in one housing, and the main devices are mixed with devices with high maintenance frequency and devices with low maintenance frequency. When replacing a frequently-used device, other devices (devices with low maintenance frequency) may be in the way, resulting in complicated operations.

また、冠水路を走行することによって主要機器が冠水すると、バッテリも他の機器と同様に冠水してしまうため、エンジンによる走行時に使用される電装品への電力供給が不可能となり、走行不能となってしまう可能性が生じる。   In addition, if the main equipment is submerged by traveling on a submerged channel, the battery will also be submerged in the same way as other equipment. There is a possibility of becoming.

また、実用新案登録第２５５８５５５号公報には、車両にバッテリ収容空間を設けた構造が記載されているのみであり、主要機器のうちメンテナンスの頻度の高い機器に対するメンテナンス作業性や冠水路の走行時におけるバッテリの冠水防止を考慮したものではない。   In addition, the utility model registration No. 2558555 only describes a structure in which a battery housing space is provided in the vehicle, and maintenance workability for a main device having a high maintenance frequency or when traveling on a submerged channel. This does not take into consideration the prevention of battery flooding.

本発明は、上記の実情に鑑みてなされたものであり、メンテナンス作業が容易であり、且つ冠水路を走行した際にバッテリが冠水し難いハイブリッド電気自動車のバッテリボックス構造の提供を目的とする。   The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a battery box structure of a hybrid electric vehicle that is easy to perform maintenance work and is difficult to flood the battery when traveling on a flooded channel.

上記目的を達成するため、本発明にかかるハイブリッド電気自動車のバッテリボックス構造は、下フレーム体と上フレーム体とを備え、車両用バッテリ関連機器群を車体側に取り付ける。下フレーム体は、第１の収容空間を区画し、車体フレームに取り付けられる。上フレーム体は、第２の収容空間を区画し、前記下フレーム体の上面に載置される。車両用バッテリ関連機器群は、防水性に対する要求が低くメンテナンス頻度の高い第１のバッテリ関連機器群と、防水性に対する要求が高くメンテナンス頻度の低い第２のバッテリ関連機器群とを含む。第２のバッテリ関連機器群は、バッテリを含む。第１のバッテリ関連機器群を前記第１の収容空間に収容する。第２のバッテリ関連機器群を前記第２の収容空間に収容する。   To achieve the above object, a battery box structure of a hybrid electric vehicle according to the present invention includes a lower frame body and an upper frame body, and a vehicle battery related device group is attached to the vehicle body side. The lower frame body defines a first accommodation space and is attached to the vehicle body frame. The upper frame body defines a second accommodation space and is placed on the upper surface of the lower frame body. The vehicle battery-related device group includes a first battery-related device group that has a low requirement for waterproofness and a high maintenance frequency, and a second battery-related device group that has a high requirement for waterproofness and a low maintenance frequency. The second battery related device group includes a battery. A first battery-related device group is accommodated in the first accommodation space. A second battery-related device group is accommodated in the second accommodation space.

上記構成では、メンテナンス頻度の高い第１のバッテリ関連機器群が第１の収容空間に収容され、メンテナンス頻度の低い第２のバッテリ関連機器群が第２の収容空間に収容される。このため、車両用バッテリ関連機器群のうちメンテナンス頻度の高い第１のバッテリ関連機器群とメンテナンス頻度の低い第２のバッテリ関連機器群とが混在しない。また、第２の収容空間を区画する上フレーム体は、第１の収容空間を区画する下フレーム体の上面に載置される。従って、第２のバッテリ関連機器群を上フレーム体ごと取り外した状態で、第１のバッテリ関連機器群のメンテナンスを行うことができるため、メンテナンス作業が容易である。   In the above configuration, the first battery-related device group with high maintenance frequency is stored in the first storage space, and the second battery-related device group with low maintenance frequency is stored in the second storage space. For this reason, the 1st battery related apparatus group with high maintenance frequency and the 2nd battery related apparatus group with low maintenance frequency among vehicle battery related apparatus groups do not coexist. Further, the upper frame body that partitions the second storage space is placed on the upper surface of the lower frame body that partitions the first storage space. Therefore, the maintenance of the first battery-related device group can be performed in a state where the second battery-related device group is removed together with the upper frame body, so that the maintenance work is easy.

また、上フレーム体は、下フレーム体の上面に載置される。このため、例えば上フレーム体の側方を車体側から片持ち状に支持する場合に比べて、上フレーム体の取り付け部分に高い強度が要求されず、上フレーム体の取り付け部分の構成を簡素化することができる。また、上フレーム体自体の強度も低く抑えることができるため、上フレーム体の軽量化を図ることができる。従って、メンテナンス作業に際して上フレーム体の取り付け及び取り外しを容易に行うことができる。   The upper frame body is placed on the upper surface of the lower frame body. For this reason, compared with the case where the side of the upper frame body is supported in a cantilevered manner from the vehicle body side, for example, high strength is not required for the mounting portion of the upper frame body, and the configuration of the mounting portion of the upper frame body is simplified. can do. Further, since the strength of the upper frame body itself can be kept low, the weight of the upper frame body can be reduced. Therefore, the upper frame body can be easily attached and detached during maintenance work.

また、防水性に対する要求が低い第１のバッテリ関連機器群よりも、バッテリを含み防水性の要求が高い第２のバッテリ関連機器群が上方に配置される。このため、冠水路の走行時にバッテリボックス構造が下方から冠水しても、第２のバッテリ関連機器群は冠水し難く、バッテリを含む第２のバッテリ関連機器群を冠水から回避することができる。従って、エンジンによる走行時に使用される電装品への電力供給を維持することができ、走行不能となってしまう事態を回避することができる。   In addition, a second battery-related device group that includes a battery and has a higher waterproof requirement is disposed above the first battery-related device group that has a low requirement for waterproofness. For this reason, even if the battery box structure is submerged from below during traveling on the submerged channel, the second battery-related device group is difficult to submerge, and the second battery-related device group including the battery can be avoided from submergence. Therefore, it is possible to maintain the power supply to the electrical components used during traveling by the engine, and to avoid a situation in which traveling becomes impossible.

また、ハイブリッド電気自動車のバッテリボックス構造は、上フレーム体に取り付けられて第２の収容空間の上方を覆う上カバーを備えてもよい。   Moreover, the battery box structure of the hybrid electric vehicle may include an upper cover that is attached to the upper frame body and covers the upper portion of the second accommodation space.

上記構成では、防水性に対する要求が高い第２のバッテリ関連機器群が収容される第２の収容空間に対して、降雨や洗車などによる上方からの浸入を防止することができる。従って、降雨や洗車などによる上方からの浸入に対して第２のバッテリ関連機器群を防水することができる。   In the said structure, the penetration | invasion from upper direction by rain, a car wash, etc. can be prevented with respect to the 2nd accommodation space in which the 2nd battery related apparatus group with a high request | requirement with respect to waterproofness is accommodated. Therefore, the second battery-related device group can be waterproofed against intrusion from above due to rain, car wash, or the like.

また、上記車両用バッテリボックス構造は、水冷装置と空冷装置とを備えてもよい。水冷装置は、第１のバッテリ関連機器群を液体冷媒によって冷却する。空冷装置は、第２のバッテリ関連機器群を空気によって冷却する。   The vehicle battery box structure may include a water cooling device and an air cooling device. The water cooling device cools the first battery-related device group with the liquid refrigerant. The air cooling device cools the second battery-related device group with air.

上記構成では、下方に配置される第１のバッテリ関連機器群が水冷装置によって冷却され、上方に配置される第２のバッテリ関連機器群が空冷装置によって冷却されるため、水冷装置を第１及び第２の収容空間に連結し、第１及び第２のバッテリ関連機器を冷却する場合に比べて、下フレーム体に対する上フレーム体の取り付け及び取り外しのときの作業性がよい。   In the above configuration, the first battery-related device group disposed below is cooled by the water cooling device, and the second battery-related device group disposed above is cooled by the air cooling device. Compared with the case where the first and second battery-related devices are cooled by connecting to the second housing space, the workability when attaching and removing the upper frame body to and from the lower frame body is good.

本発明によれば、メンテナンス作業が容易であり、且つ冠水路を走行した際にバッテリが冠水し難い。   According to the present invention, maintenance work is easy, and the battery is difficult to flood when traveling on a flooded channel.

以下、本発明の実施形態を図面に基づいて説明する。なお、以下、前後方向とは、車両の進行方向の前後方向を意味する。また、図中矢印ＦＲは車両前方を、矢印ＵＰは車両上方をそれぞれ示している。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Hereinafter, the front-rear direction means the front-rear direction of the traveling direction of the vehicle. In the figure, an arrow FR indicates the front of the vehicle, and an arrow UP indicates the upper side of the vehicle.

本発明の実施形態を図１〜図３に基づいて説明する。図１は本発明にかかるバッテリ取付構造が車両に設けられた状態を示す斜視図であり、図２は図１のバッテリ取付構造の下フレーム体及び第１のバッテリ関連機器群を示す斜視図であり、図３は図１のバッテリ取付構造の上ボックス及び第２のバッテリ関連機器群を示す斜視図である。   An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing a state where a battery mounting structure according to the present invention is provided in a vehicle, and FIG. 2 is a perspective view showing a lower frame body and a first battery-related device group of the battery mounting structure of FIG. FIG. 3 is a perspective view showing the upper box and the second battery-related device group of the battery mounting structure of FIG.

本実施形態の車両１は、ハイブリッド電気自動車であり、車体フレーム２と、ステー３と、ハイブリッドユニットボックス４とが設けられる。   The vehicle 1 of this embodiment is a hybrid electric vehicle, and is provided with a vehicle body frame 2, a stay 3, and a hybrid unit box 4.

車体フレーム２は、前後方向へ延びて左右に一対配置されるサイドメンバ２１と、車幅方向へ延びて一対のサイドメンバ２１の同士を連結する第１クロスメンバ２２と、第１クロスメンバ２２の後方で車幅方向へ延びて一対のサイドメンバ２１同士を連結する第２クロスメンバ２３とを有する。   The vehicle body frame 2 includes a pair of side members 21 extending in the front-rear direction and arranged on the left and right sides, a first cross member 22 extending in the vehicle width direction and connecting the pair of side members 21, and the first cross member 22. A second cross member 23 that extends rearward in the vehicle width direction and connects the pair of side members 21 to each other is provided.

ステー３は、車両正面視右側のサイドメンバ２１の車幅方向外側面に２つ固定され、上端部３１にボルト挿通孔３２を有し、サイドメンバ２１の上端縁近傍から下端縁よりも下方へ延びる。   Two stays 3 are fixed to the outer surface in the vehicle width direction of the side member 21 on the right side when viewed from the front of the vehicle. Extend.

ハイブリッドユニットボックス４は、車両正面視右側のサイドメンバ２１の車幅方向外側であって、車両１の前輪（図示省略）と後輪（図示省略）との間に設けられる。ハイブリッドユニットボックス４は、下フレーム体５と、上ボックス８と、外カバー１１０と、車両用バッテリ関連機器群４０とを有する。本実施形態の車両用バッテリ関連機器群４０は、冷水管路３４と、第１の収容空間５０に収容される第１のバッテリ関連機器群４１と、第２の収容空間８０に収容される第２のバッテリ関連機器群４５と、サージタンク４９とを有する。   The hybrid unit box 4 is provided on the vehicle width direction outer side of the side member 21 on the right side when viewed from the front of the vehicle, and is provided between a front wheel (not shown) and a rear wheel (not shown) of the vehicle 1. The hybrid unit box 4 includes a lower frame body 5, an upper box 8, an outer cover 110, and a vehicle battery related device group 40. The vehicle battery-related device group 40 of the present embodiment includes a cold water pipe 34, a first battery-related device group 41 accommodated in the first accommodation space 50, and a second accommodation space 80. 2 battery-related equipment group 45 and surge tank 49.

下フレーム体５は、底面部５１と、後部フレーム５２と、第１枠フレーム５６と、第２枠フレーム６２と、枠フレーム連結部６８と、底部フレーム７０と、前部サイドフレーム部７５とを有し、第１の収容空間５０を区画する。   The lower frame body 5 includes a bottom surface portion 51, a rear frame 52, a first frame frame 56, a second frame frame 62, a frame frame connecting portion 68, a bottom frame 70, and a front side frame portion 75. And a first storage space 50 is defined.

底面部５１は、矩形状の金属製板状部材である。   The bottom surface portion 51 is a rectangular metal plate member.

後部フレーム５２は、一対の金属製部材であり、後部縦フレーム部５３と、後部サイドフレーム部５４とを有する。後部縦フレーム部５３は、底面部５１の後端部の車幅方向両端部にそれぞれ固定され、上方へ延びる。後部サイドフレーム部５４は、後部縦フレーム部５３の上端から連続して前方へ延び、前部５５が略Ｓ字状に下方へ屈曲する。車幅方向外側に配置される後部サイドフレーム部５４は、ボルト挿通孔７６を有する。   The rear frame 52 is a pair of metal members, and includes a rear vertical frame portion 53 and a rear side frame portion 54. The rear vertical frame portion 53 is fixed to both ends in the vehicle width direction of the rear end portion of the bottom surface portion 51 and extends upward. The rear side frame portion 54 continuously extends forward from the upper end of the rear vertical frame portion 53, and the front portion 55 is bent downward in a substantially S shape. The rear side frame portion 54 disposed on the outer side in the vehicle width direction has a bolt insertion hole 76.

第１枠フレーム５６は、金属製部材であり、第１縦フレーム部５７と、第１クロスフレーム部６０とを有する。第１縦フレーム部５７は、底面部５１の車幅方向両端部であって後部フレーム５２の前方に固定され、上方に延びる。車幅方向外側に配置される第１縦フレーム部５７は、上端部５８にボルト挿通孔５９を有する。第１縦フレーム部５７には後部サイドフレーム部５４の前端が連結される。第１クロスフレーム部６０は、第１縦フレーム部５７の上端から連続して車幅方向内側へ延びる。第１クロスフレーム部６０の車幅方向内側端部６１は、ステー３に取り付けられる。   The first frame frame 56 is a metal member, and includes a first vertical frame portion 57 and a first cross frame portion 60. The first vertical frame portion 57 is fixed to the front of the rear frame 52 at both ends in the vehicle width direction of the bottom surface portion 51 and extends upward. The first vertical frame portion 57 disposed on the outer side in the vehicle width direction has a bolt insertion hole 59 at the upper end portion 58. A front end of the rear side frame portion 54 is connected to the first vertical frame portion 57. The first cross frame portion 60 extends continuously inward in the vehicle width direction from the upper end of the first vertical frame portion 57. An inner end 61 in the vehicle width direction of the first cross frame portion 60 is attached to the stay 3.

第２枠フレーム６２は、金属製部材であり、第２縦フレーム部６３と、第２クロスフレーム部６６とを有する。第２縦フレーム部６３は、底面部５１の車幅方向両端部の前端部に固定され、上方に延びる。車幅方向外側に配置される第２縦フレーム部６３は、上端部６４にボルト挿通孔６５を有する。第２クロスフレーム部６６は、第２縦フレーム部６３の上端から連続して車幅方向内側へ延びる。第２クロスフレーム部６６の車幅方向内側端部６７は、ステー３に取り付けられる。   The second frame frame 62 is a metal member, and includes a second vertical frame portion 63 and a second cross frame portion 66. The 2nd vertical frame part 63 is fixed to the front-end part of the vehicle width direction both ends of the bottom face part 51, and is extended upwards. The second vertical frame portion 63 disposed on the outer side in the vehicle width direction has a bolt insertion hole 65 at the upper end portion 64. The second cross frame portion 66 extends continuously inward in the vehicle width direction from the upper end of the second vertical frame portion 63. An inner end 67 in the vehicle width direction of the second cross frame portion 66 is attached to the stay 3.

枠フレーム連結部６８は、金属製部材であり、第１クロスフレーム部６０の車幅方向内側端部６１の上部と、第２クロスフレーム部６６の車幅方向内側端部６７との上部とを連結する。   The frame frame connecting portion 68 is a metal member, and includes an upper portion of an inner end portion 61 in the vehicle width direction of the first cross frame portion 60 and an upper portion of the inner end portion 67 in the vehicle width direction of the second cross frame portion 66. Link.

底部フレーム７０は、金属製部材であり、枠状部７１と、前延部７２と、前部クロスフレーム部７４とを有する。枠状部７１は、底面部５１の車幅方向外側縁と車幅方向内側縁と後端縁とに延設される。前延部７２は、枠状部７１の前端から斜め前方上方へ延びる。前部クロスフレーム部７４は、車幅方向に延び、前延部７２の前端同士を連結する。   The bottom frame 70 is a metal member and includes a frame-shaped portion 71, a front extension 72, and a front cross frame 74. The frame-like portion 71 extends to the vehicle width direction outer edge, the vehicle width direction inner edge, and the rear end edge of the bottom surface portion 51. The front extending portion 72 extends obliquely forward and upward from the front end of the frame-shaped portion 71. The front cross frame portion 74 extends in the vehicle width direction and connects the front ends of the front extension portion 72.

前部サイドフレーム部７５は、金属製部材であり、前部クロスフレーム部７４の車幅方向両端からそれぞれ後方へ略Ｓ字状に下方へ延びて、後端が第２縦フレーム部６３に連結される。車幅方向外側に配置される前部サイドフレーム部７５は、ボルト挿通孔７６を有する。   The front side frame portion 75 is a metal member, and extends downward in a substantially S shape from both ends in the vehicle width direction of the front cross frame portion 74 to the rear, and the rear end is connected to the second vertical frame portion 63. Is done. The front side frame portion 75 disposed on the outer side in the vehicle width direction has a bolt insertion hole 76.

下フレーム体５は、内側に第１の収容空間５０を区画する。第１の収容空間５０には、車両用バッテリ関連機器群４０のうち、防水性に対する要求が低くメンテナンス頻度の高い第１のバッテリ関連機器群４１が収容される。本発明にかかる防水性に対する要求とは、冠水から保護する優先度の高さであり、防水性に対する要求が低いとは、冠水から保護する優先度が第２のバッテリ関連機器群４５に比べて低いことをいう。第１のバッテリ関連機器群４１は、ラジエータ４２と、ウォーターポンプ４３と、インバータ４４とを有する。第１のバッテリ関連機器群４１は、定期的な交換が必要な部品が多く、車両１を使用する者がメンテナンスをすることができる。   The lower frame body 5 defines a first accommodation space 50 inside. In the first storage space 50, among the battery-related equipment group 40 for vehicles, the first battery-related equipment group 41 with low demand for waterproofness and high maintenance frequency is housed. The requirement for waterproofing according to the present invention is a high priority for protection from flooding, and the requirement for waterproofing is low is the priority for protection from flooding compared to the second battery-related device group 45. It means low. The first battery-related device group 41 includes a radiator 42, a water pump 43, and an inverter 44. The first battery-related device group 41 has many parts that require periodic replacement, and a person using the vehicle 1 can perform maintenance.

ラジエータ４２は、第１枠フレーム５６と第２枠フレーム６２との間であって、底面部５１上の車幅方向外側に取り付けられる。ウォーターポンプ４３は、第２枠フレーム６２の下方であって、底面部５１上の車幅方向内側に取り付けられる。ウォーターポンプ４３は冷水管路３４が連結され、冷水管路３４内の冷却水（液体冷媒）を循環させる。ウォーターポンプ４３と冷水管路３４は、本発明にかかる水冷装置を構成し、第１のバッテリ関連機器群４１を冷却する。インバータ４４は、第１枠フレーム５６の後方であって、底面部５１上に取り付けられる。インバータ４４は、第１の収容空間５０のうち後部に配置されるため、ハイブリッドユニットボックス４の前方に設けられる前輪の水跳ねの影響が少ない。   The radiator 42 is attached between the first frame frame 56 and the second frame frame 62 and on the outer side in the vehicle width direction on the bottom surface portion 51. The water pump 43 is attached below the second frame 62 and on the inner side in the vehicle width direction on the bottom surface portion 51. The water pump 43 is connected to the cold water pipe 34 and circulates the cooling water (liquid refrigerant) in the cold water pipe 34. The water pump 43 and the cold water pipe 34 constitute a water cooling device according to the present invention, and cool the first battery-related device group 41. The inverter 44 is mounted on the bottom surface 51 behind the first frame 56. Since the inverter 44 is disposed in the rear part of the first accommodation space 50, the front wheel provided in front of the hybrid unit box 4 is less affected by water splashing.

下フレーム体５は、ステー３を介して車体フレーム２に取り付けられる。本実施形態では、第１枠フレーム５６の第１クロスフレーム部６０の車幅方向内側端部６１と、第２枠フレーム６２及び第２クロスフレーム部６６の車幅方向内側端部６７とがステー３に取り付けられる。   The lower frame body 5 is attached to the vehicle body frame 2 via the stay 3. In the present embodiment, the vehicle width direction inner end portion 61 of the first cross frame portion 60 of the first frame frame 56 and the vehicle width direction inner end portion 67 of the second frame frame 62 and the second cross frame portion 66 are stationary. 3 is attached.

上ボックス８は、ケース部（上フレーム体）８１と、トップカバー部（上カバー）１０５とを有し、第２の収容空間８０を区画する。なお、図１及び図３では、内部の説明のために上ボックス８を透過性に示しているが、本実施形態の上ボックス８は非透過性部材で構成される。   The upper box 8 has a case part (upper frame body) 81 and a top cover part (upper cover) 105, and defines a second accommodation space 80. In FIG. 1 and FIG. 3, the upper box 8 is shown to be transmissive for the inside description, but the upper box 8 of this embodiment is made of a non-permeable member.

ケース部８１は、底部８２と車幅方向外側板部８８と車幅方向内側板部９４と前板部９７と後板部９８と開口部１０３とを有し、下フレーム体５の上面に載置される。   The case portion 81 includes a bottom portion 82, a vehicle width direction outer side plate portion 88, a vehicle width direction inner side plate portion 94, a front plate portion 97, a rear plate portion 98, and an opening 103, and is mounted on the upper surface of the lower frame body 5. Placed.

底部８２は、底板部８３とユニット取付部８４と取っ手８５と下フレーム締結部８６とを有する。底板部８３は、略矩形状の金属製板状部材である。取っ手８５は、底板部８３の下面に固定され、底板部８３よりも車幅方向両側に突出した部分を有する部材であり、下フレーム体５の後部サイドフレーム部５４の前部５５と前部サイドフレーム部７５とがそれぞれ有する略Ｓ字状に屈曲した部分の上方に設けられる。取っ手８５は、車幅方向内側と車幅方向外側とにそれぞれ２つずつ設けられる。下フレーム締結部８６は、ボルト挿通孔８７を有し、底板部８３の下面から下方に延び、車幅方向外側の前部及び後部に１つずつ設けられる。下フレーム締結部８６のボルト挿通孔８７と、下フレーム体５の車幅方向外側に配置された後部サイドフレーム部５４と前部サイドフレーム部７５とにそれぞれ設けられたボルト挿通孔７６とが重ねられた状態で、ボルト挿通孔７６，８７にボルトが挿通され、ボルト及びナットによって締結される。   The bottom portion 82 includes a bottom plate portion 83, a unit attachment portion 84, a handle 85, and a lower frame fastening portion 86. The bottom plate portion 83 is a substantially rectangular metal plate member. The handle 85 is a member that is fixed to the lower surface of the bottom plate portion 83 and has portions protruding to both sides in the vehicle width direction from the bottom plate portion 83, and the front portion 55 and the front side of the rear side frame portion 54 of the lower frame body 5. The frame portion 75 is provided above the portion bent in a substantially S shape. Two handles 85 are provided on each of the inner side in the vehicle width direction and the outer side in the vehicle width direction. The lower frame fastening portion 86 has a bolt insertion hole 87, extends downward from the lower surface of the bottom plate portion 83, and is provided one each at the front and rear portions on the outer side in the vehicle width direction. The bolt insertion hole 87 of the lower frame fastening portion 86 and the bolt insertion holes 76 provided in the rear side frame portion 54 and the front side frame portion 75 arranged on the outer side in the vehicle width direction of the lower frame body 5 are overlapped. In this state, the bolt is inserted into the bolt insertion holes 76 and 87 and fastened by the bolt and the nut.

車幅方向外側板部８８は、矩形状の金属製板状部材であり、給気口８９と排気口９１と下フレーム締結部９２とを有する。給気口８９は、略矩形状の開口であり、フィルタ９０が設けられる。フィルタ９０は、外気の塵埃が第２の収容空間８０内へ進入することを抑制する。排気口９１は、略矩形状の開口である。フィルタ９０は、交換可能に取り付けられ、定期的に交換される。下フレーム締結部９２は、ボルト挿通孔９３を有し、下フレーム体５の第１枠フレーム５６と第２枠フレーム６２とに対向配置され、下方へ延びる。下フレーム締結部９２のボルト挿通孔９３と、第１枠フレーム５６のボルト挿通孔５９又は第２枠フレーム６２のボルト挿通孔６５とが重ねられた状態で、ボルト挿通孔５９，６５，９３にボルトが挿通されて、ボルト及びナットによって締結される。   The vehicle width direction outer side plate portion 88 is a rectangular metal plate-like member, and includes an air supply port 89, an exhaust port 91, and a lower frame fastening portion 92. The air supply port 89 is a substantially rectangular opening and is provided with a filter 90. The filter 90 inhibits outside dust from entering the second storage space 80. The exhaust port 91 is a substantially rectangular opening. The filter 90 is replaceably attached and is periodically replaced. The lower frame fastening portion 92 has a bolt insertion hole 93, is disposed to face the first frame frame 56 and the second frame frame 62 of the lower frame body 5, and extends downward. In a state where the bolt insertion hole 93 of the lower frame fastening portion 92 and the bolt insertion hole 59 of the first frame frame 56 or the bolt insertion hole 65 of the second frame frame 62 are overlapped, the bolt insertion holes 59, 65, 93 Bolts are inserted and fastened with bolts and nuts.

車幅方向内側板部９４は、矩形状の金属製板状部材であり、上方に延びた取付部９５を有する。取付部９５は、くさび状の先端部９６を有する。先端部９６はステー３の上端部３１のボルト挿通孔３２とボルト及びナットによって締結される。   The vehicle width direction inner side plate portion 94 is a rectangular metal plate-like member, and has an attachment portion 95 extending upward. The attachment portion 95 has a wedge-shaped tip portion 96. The distal end portion 96 is fastened to the bolt insertion hole 32 of the upper end portion 31 of the stay 3 by a bolt and a nut.

前板部９７は、矩形状の金属製板状部材である。   The front plate portion 97 is a rectangular metal plate member.

後板部９８は、矩形状の金属製板状部材であり、略矩形状に開口した電気線挿通部９９を有する。電気線挿通部９９には、サービスプラグカバー１００が設けられる。サービスプラグカバー１００は、防水部１０７と電気線挿通孔１０１とを有する。防水部１０７は、防水スポンジであり、前面側に設けられ、電気線挿通部９９を覆う。防水部１０７は、電気線挿通部９９からの浸入を防止する。電気線挿通孔１０１は２つ設けられ、電気線１０２が挿通される。   The rear plate portion 98 is a rectangular metal plate-like member, and has an electric wire insertion portion 99 opened in a substantially rectangular shape. A service plug cover 100 is provided in the electric wire insertion portion 99. The service plug cover 100 includes a waterproof part 107 and an electric wire insertion hole 101. The waterproof part 107 is a waterproof sponge, is provided on the front side, and covers the electric wire insertion part 99. The waterproof part 107 prevents intrusion from the electric wire insertion part 99. Two electric wire insertion holes 101 are provided, and the electric wire 102 is inserted therethrough.

車幅方向外側板部８８の上端縁と車幅方向内側板部９４の上端縁と前板部９７の上端縁と後板部９８の上端縁とは、開口部１０３を形成する。開口部１０３は、ケース部８１の上部開口を区画し、ボルト挿通孔１０４と防水シール部１０８とを有する。ボルト挿通孔１０４は、開口に沿って複数設けられる孔状部である。防水シール部１０８は、防水スポンジであり、開口全周に渡ってトップカバー部１０５との接触部分に配置される。   The upper end edge of the vehicle width direction outer side plate portion 88, the upper end edge of the vehicle width direction inner side plate portion 94, the upper end edge of the front plate portion 97, and the upper end edge of the rear plate portion 98 form an opening 103. The opening 103 defines an upper opening of the case portion 81 and includes a bolt insertion hole 104 and a waterproof seal portion 108. The bolt insertion hole 104 is a hole-shaped portion provided in plural along the opening. The waterproof seal portion 108 is a waterproof sponge and is disposed at a contact portion with the top cover portion 105 over the entire circumference of the opening.

トップカバー部１０５は、矩形状の板状部材であり、ボルト挿通孔１０６を有する。トップカバー部１０５のボルト挿通口１０６は、ケース部８１の開口部１０３のボルト挿通孔１０４に対向配置される。トップカバー部１０５は、第２の収容空間８０の上方を覆う。   The top cover portion 105 is a rectangular plate-like member and has a bolt insertion hole 106. The bolt insertion port 106 of the top cover part 105 is disposed opposite to the bolt insertion hole 104 of the opening 103 of the case part 81. The top cover part 105 covers the upper part of the second accommodation space 80.

トップカバー部１０５は、ケース部８１に取り付けられる。本実施形態では、ケース部８１とトップカバー部１０５とは、ボルト挿通孔１０４，１０６にボルトが挿通されて、ボルトとナットによって締結される。ケース部８１とトップカバー部１０５とは、ケース部８１の開口部１０３の防水シール部１０８によってシールされる。防水シール部１０８によって、ケース部８１とトップカバー部１０５とがシールされ、降雨や洗車のときの第２の収容空間８０への浸入が防止される。   The top cover part 105 is attached to the case part 81. In the present embodiment, the case portion 81 and the top cover portion 105 are fastened by bolts and nuts by inserting bolts into the bolt insertion holes 104 and 106. The case part 81 and the top cover part 105 are sealed by the waterproof seal part 108 of the opening 103 of the case part 81. The waterproof seal portion 108 seals the case portion 81 and the top cover portion 105, and prevents entry into the second storage space 80 during rainfall or car washing.

上ボックス８は、内部に第２の収容空間８０を区画する。第２の収容空間８０は、給気口８９及び排気口９１のみが外部に向けて開口し、その他の部分は、上ボックス８によって覆われている。第２の収容空間８０は、給気口８９及び排気口９１を除いて上ボックス８の外部から遮断される。第２の収容空間８０には、車両用バッテリ関連機器群４０のうち、防水性の要求が高くメンテナンス頻度の低い第２のバッテリ関連機器群４５が収容される。本発明にかかる防水性に対する要求とは、冠水から保護する優先度の高さであり、防水性に対する要求が高いとは、冠水から保護する優先度が第１のバッテリ関連機器群４１に比べて高いことをいう。第２のバッテリ関連機器群４５は、ファン・ダクト４６と、バッテリ４７と、バッテリコントロールユニット４８と、ジャンクションパレット（図示省略）とを有する。第２のバッテリ関連機器群４５は、第１のバッテリ関連機器群４１に比べて高電圧部品が多く、基本的に、有資格者によりメンテナンスされるものである。このため、第２のバッテリ関連機器群４５は、上ボックス８内に収容されることにより、第１のバッテリ関連機器群４１に比べて、車両１を使用する者が容易に触れることのできないように配置されている。   The upper box 8 defines a second accommodation space 80 inside. In the second accommodation space 80, only the air supply port 89 and the exhaust port 91 are opened to the outside, and other portions are covered with the upper box 8. The second accommodation space 80 is blocked from the outside of the upper box 8 except for the air supply port 89 and the exhaust port 91. Of the vehicle battery-related device group 40, the second storage space 80 accommodates a second battery-related device group 45 that has a high waterproof requirement and a low maintenance frequency. The requirement for waterproofing according to the present invention is a high priority for protection from flooding, and the requirement for waterproofing is high when the priority for protection from flooding is higher than that of the first battery-related device group 41. It's expensive. The second battery-related device group 45 includes a fan / duct 46, a battery 47, a battery control unit 48, and a junction pallet (not shown). The second battery-related device group 45 has more high-voltage components than the first battery-related device group 41, and is basically maintained by a qualified person. For this reason, the second battery-related device group 45 is housed in the upper box 8 so that the person using the vehicle 1 cannot easily touch it compared to the first battery-related device group 41. Are arranged.

ファン・ダクト４６は、給気部３５と排気部３６とを有し、２段設けられる。ファン・ダクト４６は、第２の収容空間８０内の前部に取り付けられる。ファン・ダクト４６は、本発明にかかる空冷装置を構成し、第２のバッテリ関連機器群４５を空気によって冷却する。給気部３５は上ボックス８の給気口８９と接続され、上ボックス８の外気を取り入れる。排気部３６は上ボックス８の排気口９１と接続され、第２の収容空間８０の内気を排出する。バッテリ４７は、リチウムイオン電池であり、２段設けられる。バッテリ４７は、第２の収容空間８０内の中央部に取り付けられる。バッテリコントロールユニット４８は、第２の収容空間８０内の後部のユニット取付部８４上に取り付けられる。バッテリコントロールユニット４８は、主にバッテリ４７を制御する。ジャンクションパレットは、バッテリコントロールユニット４８の近傍に配置され、電気の流れを切り換える。   The fan duct 46 includes an air supply unit 35 and an exhaust unit 36 and is provided in two stages. The fan duct 46 is attached to the front part in the second accommodating space 80. The fan duct 46 constitutes an air cooling device according to the present invention, and cools the second battery-related device group 45 with air. The air supply unit 35 is connected to the air supply port 89 of the upper box 8 and takes in the outside air of the upper box 8. The exhaust part 36 is connected to the exhaust port 91 of the upper box 8 and exhausts the inside air of the second accommodation space 80. The battery 47 is a lithium ion battery and is provided in two stages. The battery 47 is attached to the central portion in the second accommodation space 80. The battery control unit 48 is mounted on the rear unit mounting portion 84 in the second accommodation space 80. The battery control unit 48 mainly controls the battery 47. The junction pallet is disposed in the vicinity of the battery control unit 48 and switches the flow of electricity.

上ボックス８は、下フレーム体５の上面に着脱自在に載置される。本実施形態では、上ボックス８は下フレーム体５の上面に載置され、下フレーム体５のボルト挿通孔７６と、上ボックスの下フレーム締結部８６，９２とがボルト及びナットによって締結される。   The upper box 8 is detachably mounted on the upper surface of the lower frame body 5. In the present embodiment, the upper box 8 is placed on the upper surface of the lower frame body 5, and the bolt insertion hole 76 of the lower frame body 5 and the lower frame fastening portions 86 and 92 of the upper box are fastened by bolts and nuts. .

上ボックス８が高い位置に配置されることによって、第２の収容空間８０内への下方からの浸入を防ぐことができる。本実施形態では、車両１が冠水路を走行するときに冠水路の水面の位置は、上ボックス８の下端部より下方であり、上ボックス８の下端部よりも上方へは冠水しない。   By arranging the upper box 8 at a high position, it is possible to prevent intrusion into the second accommodation space 80 from below. In the present embodiment, the position of the water surface of the submerged channel is below the lower end of the upper box 8 when the vehicle 1 travels on the submerged channel, and is not submerged above the lower end of the upper box 8.

バッテリ４７とバッテリコントロールユニット４８を含む第２のバッテリ関連機器群４５が冠水しないため、冠水によりハイブリッド機構が停止したときであって、エンジン（図示省略）による走行時に使用される電装品への電力供給は確保されるため、走行不能となってしまう事態を回避することができる。   Since the second battery-related device group 45 including the battery 47 and the battery control unit 48 is not flooded, the power to the electrical components used when the hybrid mechanism stops due to flooding and is run by the engine (not shown) Since the supply is ensured, it is possible to avoid a situation where the vehicle cannot run.

また、第１のバッテリ関連機器群４１に比べて高電圧機器が多い第２のバッテリ関連機器群４５を防水することにより、冠水により第２のバッテリ関連機器群４５がショートして故障するのを防止することができる。   In addition, by waterproofing the second battery-related device group 45, which has more high-voltage devices than the first battery-related device group 41, the second battery-related device group 45 may be short-circuited due to flooding and broken. Can be prevented.

車両用バッテリ関連機器群４０のうち、サージタンク４９は、冷水管路３４に連結され、上ボックス８の前方に取り付けられる。また、冷水管路３４は、サイドメンバ２１に固定されるモータジェネレータ（図示省略）近傍を経由して、モータジェネレータを冷却する。モータジェネレータ及び第１のバッテリ関連機器群４１は、駆動によって高温に達するため、ウォーターポンプ４３などで水冷することにより安定性が確保される。   In the vehicle battery-related equipment group 40, the surge tank 49 is connected to the cold water pipe 34 and attached to the front of the upper box 8. The cold water pipe 34 cools the motor generator via the vicinity of a motor generator (not shown) fixed to the side member 21. Since the motor generator and the first battery-related device group 41 reach a high temperature when driven, stability is ensured by water cooling with the water pump 43 or the like.

外カバー１１０は、サイドカバー部１１１と、リアカバー部１１４とを有する。なお、図１では、内部の説明のため外カバー１１０を透過性に示しているが、本実施形態の外カバー１１０は非透過性部材で構成される。   The outer cover 110 includes a side cover part 111 and a rear cover part 114. In FIG. 1, the outer cover 110 is shown to be permeable for explanation of the inside, but the outer cover 110 of the present embodiment is made of a non-permeable member.

サイドカバー部１１１は、金属製板状部材であり、通気口１１２を有し、下フレーム体５と上ボックス８との車幅方向外側を覆う。サイドカバー部１１１の周縁部は、下フレーム体５の下端縁と前端縁と後端縁と上ボックス８の上端縁と前端縁と後端縁に対して、ボルト及びナットによって締結される。上ボックス８の車幅方向外側板部８８の車幅方向外側面と、外カバー１１０のサイドカバー部１１１の車幅方向内側面とは、所定間隔の通気間隙１１３を区画する。通気口１１２は、上ボックス８の車幅方向外側板部８８の給気口８９及び排気口９１に対向しない箇所に複数設けられた開口部である。本実施形態では、通気口１１２は、ラジエータ４２に対向配置されるものを含み、給気口８９及び排気口９１よりも下方に配置される。リアカバー部１１４は、金属製板状部材であり、下フレーム体５と上ボックス８との後部を覆う。   The side cover portion 111 is a metal plate-like member, has a vent 112, and covers the outer side in the vehicle width direction of the lower frame body 5 and the upper box 8. The peripheral edge portion of the side cover portion 111 is fastened to the lower end edge, the front end edge, the rear end edge of the lower frame body 5, and the upper end edge, the front end edge, and the rear end edge of the upper box 8 by bolts and nuts. The vehicle width direction outer side surface of the vehicle width direction outer side plate portion 88 of the upper box 8 and the vehicle width direction inner side surface of the side cover portion 111 of the outer cover 110 define a ventilation gap 113 having a predetermined interval. The vent 112 is a plurality of openings provided at locations not facing the air supply port 89 and the exhaust port 91 of the vehicle width direction outer side plate portion 88 of the upper box 8. In the present embodiment, the vent 112 includes the one disposed to face the radiator 42, and is disposed below the air supply port 89 and the exhaust port 91. The rear cover portion 114 is a metal plate-like member and covers the rear portions of the lower frame body 5 and the upper box 8.

外カバー１１０のサイドカバー部１１１によって、給気口８９及び排気口９１の車幅方向外側の側方が覆われ、給気口８９及び排気口９１が通気口１１２と対向しないため、ハイブリッドユニットボックス４側方から第２の収容空間８０への直接の浸入が抑制される。   The side cover portion 111 of the outer cover 110 covers the lateral sides of the air supply port 89 and the exhaust port 91 on the outer side in the vehicle width direction, and the air supply port 89 and the exhaust port 91 do not face the ventilation port 112. Direct intrusion into the second accommodation space 80 from the four sides is suppressed.

通気口１１２から取り入れられたハイブリッドユニットボックス４の外気が、通気間隙１１３を介して給気口８９から第２の収容空間８０内のファン・ダクト４６に給気される。排気口９１からファン・ダクト４６によって排気された第２の収容空間８０の内気が、通気間隙１１３を介して通気口１１２からハイブリッドユニットボックス４の外へ排出される。このように通気間隙１１３を介して給気口８９及び排気口９１と通気口１１２とから、第２の収容空間８０の内気がハイブリッドユニットボックス４の外気と入れ換えられる。第２の収容空間８０に収容される第２のバッテリ関連機器群４５は、駆動のときにモータジェネレータなどに対して比較的低い温度であるため、ファン・ダクト４６などによる空冷によって十分な安定性が確保される。   The outside air of the hybrid unit box 4 taken in from the air vent 112 is supplied to the fan duct 46 in the second accommodation space 80 from the air supply opening 89 through the air gap 113. The inside air in the second accommodation space 80 exhausted from the exhaust port 91 by the fan duct 46 is exhausted from the air vent 112 to the outside of the hybrid unit box 4 through the air gap 113. In this way, the inside air of the second accommodation space 80 is exchanged with the outside air of the hybrid unit box 4 from the air supply port 89, the exhaust port 91, and the ventilation port 112 through the ventilation gap 113. Since the second battery-related device group 45 accommodated in the second accommodating space 80 is at a relatively low temperature relative to the motor generator or the like when driven, sufficient stability is achieved by air cooling using the fan / duct 46 or the like. Is secured.

本実施形態では、ハイブリッドユニットボックス４は、外カバー１１０が、下フレーム体５及び上ボックス８に対して着脱自在に取り付けられている。   In the present embodiment, the hybrid unit box 4 has an outer cover 110 detachably attached to the lower frame body 5 and the upper box 8.

また、上ボックス８は、車幅方向内側板部９４の取付部９５がステー３に対して着脱自在に取り付けられている。   In addition, the upper box 8 has a mounting portion 95 of the vehicle width direction inner side plate portion 94 detachably attached to the stay 3.

また、上ボックス８は、下フレーム体５に対して着脱自在に取り付けられている。   The upper box 8 is detachably attached to the lower frame body 5.

下フレーム体５と上ボックス８とは、下フレーム体５の第１枠フレーム５６及び第２枠フレーム６２と、上ボックス８の下フレーム締結部８６，９２とが着脱自在に締結されている。下フレーム体５を上ボックス８から分離するときには、下フレーム体５の第１枠フレーム５６及び第２枠フレーム６２と、上ボックス８の下フレーム締結部８６，９２との締結が解除された状態で、上ボックス８の底部８２の取っ手８５を掴み車幅方向外側へ引き出し、上ボックス８を上方へ持ちあげて上ボックス８を下フレーム体５から分離する。   The lower frame body 5 and the upper box 8 are detachably fastened to the first frame frame 56 and the second frame frame 62 of the lower frame body 5 and the lower frame fastening portions 86 and 92 of the upper box 8. When the lower frame body 5 is separated from the upper box 8, the fastening between the first frame frame 56 and the second frame frame 62 of the lower frame body 5 and the lower frame fastening portions 86 and 92 of the upper box 8 is released. Then, the handle 85 of the bottom portion 82 of the upper box 8 is gripped and pulled outward in the vehicle width direction, and the upper box 8 is lifted upward to separate the upper box 8 from the lower frame body 5.

上ボックス８は、車幅方向外側板部８８と車幅方向内側板部９４と前板部９７と後板部９８とが着脱自在に取り付けられている。第２のバッテリ関連機器群４５のメンテナンスを行うときには、上ボックス８に設けられたサービスプラグを抜き、第２の収容空間８０の電圧をシャットダウンし、車幅方向外側板部８８と車幅方向内側板部９４と前板部９７と後板部９８との締結を解除した状態で行う。   The upper box 8 has a vehicle width direction outer side plate portion 88, a vehicle width direction inner side plate portion 94, a front plate portion 97, and a rear plate portion 98 which are detachably attached. When performing maintenance on the second battery-related device group 45, the service plug provided in the upper box 8 is removed, the voltage in the second housing space 80 is shut down, and the vehicle width direction outer side plate portion 88 and the vehicle width direction inner side are This is performed in a state where the fastening of the plate portion 94, the front plate portion 97, and the rear plate portion 98 is released.

このように、ハイブリッドユニットボックス４は、外カバー１１０を取り外し、下フレーム体５の上面から上ボックス８を取り外した状態で、第１及び第２のバッテリ関連機器群４１，４５の取り付け及び取り外しが行われる。このため、車両１の製造時に車両用バッテリ関連機器群４０をハイブリッドユニットボックス４に収容した状態で車体側に組み付けることができるため、作業性がよい。   Thus, in the hybrid unit box 4, the first and second battery-related device groups 41, 45 can be attached and removed with the outer cover 110 removed and the upper box 8 removed from the upper surface of the lower frame body 5. Done. For this reason, since the battery related apparatus group 40 for vehicles can be assembled | attached to the vehicle body side in the state accommodated in the hybrid unit box 4 at the time of manufacture of the vehicle 1, workability | operativity is good.

本実施形態では、メンテナンス頻度の高い第１のバッテリ関連機器群４１が第１の収容空間５０に収容され、メンテナンス頻度の低い第２のバッテリ関連機器群４５が第２の収容空間８０に収容される。このため、車両用バッテリ関連機器群４０のうちメンテナンス頻度の高い第１のバッテリ関連機器群４１とメンテナンス頻度の低い第２のバッテリ関連機器群４５とが混在しない。また、第２の収容空間８０を区画する上ボックス８は、第１の収容空間５０を区画する下フレーム体５の上面に載置される。従って、第２のバッテリ関連機器群４５を上ボックス８ごと取り外した状態で、第１のバッテリ関連機器群４１のメンテナンスを行うことができるため、メンテナンス作業が容易である。   In the present embodiment, the first battery-related device group 41 with high maintenance frequency is stored in the first storage space 50, and the second battery-related device group 45 with low maintenance frequency is stored in the second storage space 80. The For this reason, the 1st battery related apparatus group 41 with a high maintenance frequency among the battery battery related apparatus groups 40 for vehicles and the 2nd battery related apparatus group 45 with a low maintenance frequency do not coexist. Further, the upper box 8 that partitions the second storage space 80 is placed on the upper surface of the lower frame body 5 that partitions the first storage space 50. Therefore, since the maintenance of the first battery-related device group 41 can be performed in a state where the second battery-related device group 45 is removed together with the upper box 8, the maintenance work is easy.

また、上ボックス８は、下フレーム体５の上面に載置される。このため、例えば上ボックス８の側方をサイドメンバ２１の車幅方向外側面から片持ち状に支持する場合に比べて、上ボックス８の取り付け部分に高い強度が要求されず、上ボックス８の取り付け部分の構成を簡素化することができる。また、上ボックス８自体の強度も低く抑えることができるため、上ボックス８の軽量化を図ることができる。従って、メンテナンス作業に際して上ボックス８の取り付け及び取り外しを容易に行うことができる。   The upper box 8 is placed on the upper surface of the lower frame body 5. For this reason, compared with the case where the side of the upper box 8 is supported in a cantilevered manner from the outer side surface of the side member 21 in the vehicle width direction, for example, high strength is not required for the mounting portion of the upper box 8. The structure of the attachment portion can be simplified. Further, since the strength of the upper box 8 itself can be kept low, the weight of the upper box 8 can be reduced. Therefore, it is possible to easily attach and remove the upper box 8 during maintenance work.

また、ハイブリッドユニットボックス４は、サイドメンバ２１の車幅方向外側面に対して取り付けられるため、上ボックス８を取り外した状態で下フレーム５の上面が露出する。このため、メンテナンス頻度の高い第１のバッテリ関連機器群４１のメンテナンス作業が容易である。   Further, since the hybrid unit box 4 is attached to the outer side surface of the side member 21 in the vehicle width direction, the upper surface of the lower frame 5 is exposed with the upper box 8 removed. For this reason, the maintenance work of the 1st battery related apparatus group 41 with a high maintenance frequency is easy.

また、防水性に対する要求が低い第１のバッテリ関連機器群４１よりも、バッテリ４７を含み防水性の要求が高い第２のバッテリ関連機器群４５が上方に配置される。このため、冠水路の走行時にハイブリッドユニットボックス４が下方から冠水しても、第２のバッテリ関連機器群４５は冠水し難く、バッテリ４７を含む第２のバッテリ関連機器群４５を冠水から回避することができる。従って、エンジンによる走行時に使用される電装品への電力供給を維持することができ、走行不能となってしまう事態を回避することができる。   In addition, the second battery-related device group 45 including the battery 47 and having a high waterproof requirement is disposed above the first battery-related device group 41 having a low requirement for waterproofness. For this reason, even if the hybrid unit box 4 is submerged from below when traveling on a submerged road, the second battery-related device group 45 is difficult to submerge, and the second battery-related device group 45 including the battery 47 is avoided from submergence. be able to. Therefore, it is possible to maintain the power supply to the electrical components used during traveling by the engine, and to avoid a situation in which traveling becomes impossible.

また、ケース部８１に取り付けられて第２の収容空間８０の上方を覆うトップカバー部１０５を備えるため、防水性に対する要求が高い第２のバッテリ関連機器群４５が収容される第２の収容空間８０に対して、降雨や洗車などによる上方からの浸入を防止することができる。従って、降雨や洗車などによる上方からの浸入に対して第２のバッテリ関連機器群４５を防水することができる。   Moreover, since the top cover part 105 which is attached to the case part 81 and covers the upper part of the 2nd accommodation space 80 is provided, the 2nd accommodation space in which the 2nd battery related apparatus group 45 with a high request | requirement with respect to waterproofness is accommodated. 80, it is possible to prevent intrusion from above due to rain, car wash, or the like. Therefore, the second battery-related device group 45 can be waterproofed against intrusion from above due to rain, car wash, or the like.

また、下方に配置される第１のバッテリ関連機器群４１がウォーターポンプ４３によって冷却され、上方に配置される第２のバッテリ関連機器群４５がファン・ダクト４６によって冷却されるため、水冷装置を第１及び第２の収容空間５０，８０に連結して設け、第１及び第２のバッテリ関連機器群４１，４５を冷却する場合に比べて、下フレーム体５に対する上ボックス８の取り付け及び取り外しのときの作業性がよい。   In addition, the first battery-related device group 41 disposed below is cooled by the water pump 43, and the second battery-related device group 45 disposed above is cooled by the fan duct 46. Compared to the case where the first and second battery-related equipment groups 41 and 45 are cooled by being connected to the first and second accommodation spaces 50 and 80, the upper box 8 is attached to and detached from the lower frame body 5. Good workability when

以上、本発明者によってなされた発明を適用した実施形態について説明したが、この実施形態による本発明の開示の一部をなす論述及び図面により本発明は限定されることはない。すなわち、この実施形態に基づいて当業者等によりなされる他の実施形態、実施例及び運用技術等は全て本発明の範疇に含まれることは勿論であることを付け加えておく。   As mentioned above, although the embodiment to which the invention made by the present inventor is applied has been described, the present invention is not limited by the discussion and the drawings that form part of the disclosure of the present invention according to this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

本発明にかかるバッテリ取付構造が車両に設けられた状態を示す斜視図である。It is a perspective view which shows the state in which the battery attachment structure concerning this invention was provided in the vehicle. 図１のバッテリ取付構造の下フレーム及び第１のバッテリ関連機器群を示す斜視図である。It is a perspective view which shows the lower frame and 1st battery related apparatus group of the battery attachment structure of FIG. 図１のバッテリ取付構造の上ボックス及び第２のバッテリ関連機器群を示す斜視図である。It is a perspective view which shows the upper box and 2nd battery related apparatus group of the battery attachment structure of FIG.

符号の説明Explanation of symbols

１：車両（ハイブリッド電気自動車）
２：車体フレーム
３：ステー
４：ハイブリッドユニットボックス
５：下フレーム体
８：上ボックス
２１：サイドメンバ
３４：冷水管路（水冷装置）
４０：車両用バッテリ関連機器群
４１：第１のバッテリ関連機器群
４３：ウォーターポンプ（水冷装置）
４５：第２のバッテリ関連機器群
４６：ファン・ダクト（空冷装置）
５０：第１の収容空間
８０：第２の収容空間
８１：ケース部（上フレーム体）
１０５：トップカバー部（上カバー） 1: Vehicle (hybrid electric vehicle)
2: Body frame 3: Stay 4: Hybrid unit box 5: Lower frame body 8: Upper box 21: Side member 34: Cold water pipe (water cooling device)
40: Vehicle battery-related equipment group 41: First battery-related equipment group 43: Water pump (water cooling device)
45: Second battery-related equipment group 46: Fan duct (air cooling device)
50: 1st accommodation space 80: 2nd accommodation space 81: Case part (upper frame body)
105: Top cover part (upper cover)

Claims (3)

車両用バッテリ関連機器群を車体側に取り付けるハイブリッド電気自動車のバッテリボックス構造であって、
第１の収容空間を区画し、車体フレームに取り付けられる下フレーム体と、
第２の収容空間を区画し、前記下フレーム体の上面に載置される上フレーム体と、を備え、
前記車両用バッテリ関連機器群は、防水性に対する要求が低くメンテナンス頻度の高い第１のバッテリ関連機器群と、防水性に対する要求が高くメンテナンス頻度の低い第２のバッテリ関連機器群とを含み、
前記第２のバッテリ関連機器群は、バッテリを含み、
前記第１のバッテリ関連機器群を前記第１の収容空間に収容し、
前記第２のバッテリ関連機器群を前記第２の収容空間に収容する
ことを特徴とするハイブリッド電気自動車のバッテリボックス構造。 A battery box structure of a hybrid electric vehicle for attaching a vehicle battery related device group to the vehicle body side,
A lower frame body that partitions the first housing space and is attached to the vehicle body frame;
A second housing space, and an upper frame body placed on the upper surface of the lower frame body,
The vehicle battery-related device group includes a first battery-related device group with a low requirement for waterproofness and a high maintenance frequency, and a second battery-related device group with a high requirement for waterproofness and a low maintenance frequency,
The second battery-related device group includes a battery,
Accommodating the first battery-related device group in the first accommodation space;
The battery box structure of a hybrid electric vehicle, wherein the second battery-related device group is accommodated in the second accommodation space. 請求項１に記載のハイブリッド電気自動車のバッテリボックス構造であって、
前記上フレーム体に取り付けられて前記第２の収容空間の上方を覆う上カバーを備えた
ことを特徴とするハイブリッド電気自動車のバッテリボックス構造。 A battery box structure for a hybrid electric vehicle according to claim 1,
A battery box structure for a hybrid electric vehicle, comprising an upper cover attached to the upper frame body and covering an upper portion of the second accommodation space. 請求項２に記載のハイブリッド電気自動車のバッテリボックス構造であって、
前記第１のバッテリ関連機器群を液体冷媒によって冷却する水冷装置と、
前記第２のバッテリ関連機器群を空気によって冷却する空冷装置と、を備えた
ことを特徴とするハイブリッド電気自動車のバッテリボックス構造。 A battery box structure for a hybrid electric vehicle according to claim 2,
A water cooling device for cooling the first battery-related device group with a liquid refrigerant;
A battery box structure for a hybrid electric vehicle, comprising: an air cooling device that cools the second battery-related device group by air.
JP2007201020A 2007-08-01 2007-08-01 Hybrid electric vehicle battery box structure Expired - Fee Related JP4465667B2 (en)

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