JPH05201356A - Car body structure of electric automobile - Google Patents

Car body structure of electric automobile

Info

Publication number
JPH05201356A
JPH05201356A JP4034395A JP3439592A JPH05201356A JP H05201356 A JPH05201356 A JP H05201356A JP 4034395 A JP4034395 A JP 4034395A JP 3439592 A JP3439592 A JP 3439592A JP H05201356 A JPH05201356 A JP H05201356A
Authority
JP
Japan
Prior art keywords
floor
battery
frame
cross member
frames
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP4034395A
Other languages
Japanese (ja)
Inventor
Masami Kosuge
正美 小菅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP4034395A priority Critical patent/JPH05201356A/en
Publication of JPH05201356A publication Critical patent/JPH05201356A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Landscapes

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

Abstract

PURPOSE:To improve the coupling efficiency of a frame below a floor by increasing the vertical holding strength of a battery inserting a box lower frame in a position below a battery containing box and intercoupling the cross member extending to the rear end of a floor frame and a cross member between rear frames through the box lower frame. CONSTITUTION:A battery containing box 26 is fixed to a floor opening part 25 surrounded with middle cross members 22 at the rear ends of right and left front lower frames 18 and 18 and a rear floor cross member 23 between right and left rear frames 19 and 19. Right and left box lower frames 28 and 28 extending to the rear of the floor frame 18 and pointing to the under surface of the battery containing box 26 are coupled to and between the two cross members 22 and 23. The above structure improves the coupling efficiency of a frame below a rear floor 14, improves body rigidity against, especially bending, and suppresses the chipping damage of the frame itself.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、電気自動車の車体構造
に関し、特に、その電気自動車駆動用のバッテリ搭載部
の構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body structure of an electric vehicle, and more particularly to a structure of a battery mounting portion for driving the electric vehicle.

【０００２】[0002]

【従来の技術】電気自動車における駆動用バッテリの搭
載構造として、荷台下のフレーム空間内にバッテリを収
納したものは、特公昭５１−２７０４７号公報により公
知となっている。そして、フロア後方部にバッテリを落
とし込んで搭載する構造としては、例えば、図１６のよ
うに、フロントフロア１０１後方のリヤフロア１０２に
開口部１０３を形成して、この開口部１０３内に、ボッ
クス状のバッテリセッティングベース１０４を結合し、
その中にバッテリ１１１を収納することが考えられる。
その他、図１７のように、フロントフロア１０１を後方
に延長して、その延長部上に搭載したバッテリ１１１の
前側にバルクヘッド１０５等による仕切りを設けたりす
るのが考えられ、また、そのような構造は、特開昭６０
−８９０６３号公報からも公知である。2. Description of the Related Art As a structure for mounting a driving battery in an electric vehicle, a structure in which a battery is housed in a frame space under a load carrier is known from Japanese Patent Publication No. 51-27047. As a structure for dropping and mounting the battery in the rear part of the floor, for example, as shown in FIG. 16, an opening 103 is formed in the rear floor 102 behind the front floor 101, and a box-shaped part is formed in the opening 103. Connect the battery setting base 104,
It is conceivable to house the battery 111 therein.
In addition, as shown in FIG. 17, it is conceivable to extend the front floor 101 rearward and provide a partition by the bulkhead 105 or the like on the front side of the battery 111 mounted on the extension portion. The structure is JP-A-60
It is also known from JP-A-89063.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、図示し
たように、フロア後方部に搭載するバッテリをパネル面
のみで保持する構造では、バッテリ搭載部の強度・剛性
として十分とは言えず、強度・剛性の向上が望まれる。However, as shown in the figure, in the structure in which the battery mounted on the rear portion of the floor is held only by the panel surface, the strength and rigidity of the battery mounting portion cannot be said to be sufficient, and the strength and rigidity are not sufficient. Improvement is desired.

【０００４】そこで本発明の目的は、フロア後方部に駆
動用バッテリを落とし込んで搭載する電気自動車におい
て、バッテリ搭載部の強度・剛性に優れた車体構造を提
供することにある。Therefore, an object of the present invention is to provide a vehicle body structure in which the battery mounting portion is excellent in strength and rigidity in an electric vehicle in which a driving battery is dropped and mounted on the rear portion of the floor.

【０００５】[0005]

【課題を解決するための手段】以上の課題を解決すべく
本発明は、フロア下に、前後方向に延びる左右一対のフ
ロアフレーム、その後端に接合した左右方向に延びるク
ロスメンバ、その左右に接合した後方に延びる一対のリ
ヤフレーム、その間に架設した左右方向に延びるクロス
メンバを配設してなる電気自動車の車体構造であって、
前記フロアフレーム後方の前記リヤフレーム及び両クロ
スメンバで囲まれる前記フロア部分に、電気自動車駆動
用のバッテリ配置用の開口部を形成して、この開口部内
に、バッテリ収納ボックスを固定するとともに、このバ
ッテリ収納ボックスの下面を支持して、前記フロアフレ
ームの後方に直線的に延びる左右一対のボックスロアフ
レームを、前記両クロスメンバ間に接合したことを特徴
とする。SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a pair of left and right floor frames extending in the front-rear direction under a floor, a cross member extending in the left-right direction joined to its rear ends, and joined to the left and right sides thereof. And a pair of rear frames extending rearward, and a body structure of an electric vehicle having a cross member extending in the left-right direction installed between them.
An opening for arranging a battery for driving an electric vehicle is formed in the floor portion surrounded by the rear frame and both cross members behind the floor frame, and a battery storage box is fixed in the opening. A pair of left and right box lower frames that linearly extend rearward of the floor frame are joined between the cross members while supporting a lower surface of the battery storage box.

【０００６】[0006]

【作用】バッテリ収納ボックス下にボックスロアフレー
ムを通すことにより、バッテリの上下荷重に対する保持
強度の向上が図られ、更に、フロアフレーム後端のクロ
スメンバと、リヤフレーム間のクロスメンバとの間を、
フロアフレーム延長上のボックスロアフレームで結合す
ることにより、フロア下のフレーム結合効率がアップ
し、特に、曲げに対するボディ剛性の向上が図られる。
また、ボックスロアフレームを前後に通すことにより、
フレーム自身に対してチッピングダメージを受けにくい
ものとなるので、錆にも強い構造となる。Function: By passing the box lower frame under the battery storage box, the holding strength against the vertical load of the battery is improved, and further, between the cross member at the rear end of the floor frame and the cross member between the rear frames. ,
By connecting with the box lower frame on the floor frame extension, the frame connection efficiency under the floor is improved, and in particular, the rigidity of the body against bending is improved.
Also, by passing the box lower frame back and forth,
Since the frame itself is less susceptible to chipping damage, it has a structure that is resistant to rust.

【０００７】[0007]

【実施例】以下に本発明の実施例を図面に基づいて説明
する。本発明を適用した電気自動車の一例を示す図１乃
至図１０において、１は駆動用電動モータ、２はモータ
コントロールユニット、３は駆動用バッテリ、４はバッ
テリコントロールユニット、５はバッテリチャージャ、
６はＤＣ／ＤＣコンバータ、７はスペアタイヤ、８はジ
ャッキ、９はステアリングハンドル、１０はフロントシ
ート、１１は前輪、１２は後輪、１３はフロントフロ
ア、１４はリヤフロア、１５はリヤパネル、１６はフロ
ントサイドフレーム、１７はサイドシル、１８はフロン
トフロアフレーム、１９はリヤフレームである。以下に
述べる実施例は、２ドア乗用車において、そのフロント
フロア１３上に設置したフロントシート１０後方のリヤ
フロア１４部分に、車体前部に搭載した電動モータ１に
供給される大容量のバッテリ３を搭載して、前輪駆動の
電気自動車を構成したものである。Embodiments of the present invention will be described below with reference to the drawings. 1 to 10 showing an example of an electric vehicle to which the present invention is applied, 1 is a drive electric motor, 2 is a motor control unit, 3 is a drive battery, 4 is a battery control unit, 5 is a battery charger,
6 is a DC / DC converter, 7 is a spare tire, 8 is a jack, 9 is a steering wheel, 10 is a front seat, 11 is a front wheel, 12 is a rear wheel, 13 is a front floor, 14 is a rear floor, 15 is a rear panel, 16 is a A front side frame, 17 is a side sill, 18 is a front floor frame, and 19 is a rear frame. In the embodiment described below, in a two-door passenger vehicle, a large-capacity battery 3 supplied to an electric motor 1 mounted on the front part of the vehicle body is mounted on a rear floor 14 behind the front seat 10 installed on the front floor 13 thereof. Then, a front-wheel drive electric vehicle is configured.

【０００８】車体フレームは、図１０のように、フロン
トサイドフレーム１６、サイドシル１７，１７、フロン
トフロアフレーム１８，１８、リヤフレーム１９，１９
で構成されている。図中、２１は、サイドシル１７，１
７及びフロントフロアフレーム１８，１８の中間部間に
架設した断面ボックス状のフロントフロアクロスメン
バ、２２は、サイドシル１７，１７の後部寄り間に架設
して、フロントフロアフレーム１８，１８の後端に接合
した断面ボックス状のミドルフロアクロスメンバ、２３
は、リヤフレーム１９，１９の後部寄り間に架設した断
面ボックス状のリヤフロアクロスメンバ、２４は、サイ
ドシル１７後端とリヤフレーム１８側部間に介設したガ
セットである。ここで、内燃機関搭載の場合には、リヤ
フロア１４の前半部は、段差をもって高く形成され、そ
の上面にリヤシートを設置しており、このリヤフロア１
４前半部下方の左右のリヤフレーム１９，１９間であっ
て、その前後のミドルフロアクロスメンバ２２及びリヤ
フロアクロスメンバ２４間に燃料タンクを配置していた
が、実施例の電気自動車の場合においては、この空間を
利用して、リヤフロア１４前半部下に、バッテリ３を落
とし込むように搭載するものである。As shown in FIG. 10, the vehicle body frame includes front side frames 16, side sills 17, 17, front floor frames 18, 18, rear frames 19, 19.
It is composed of. In the figure, 21 is a side sill 17 or 1.
7 and a front floor cross member 22 having a box-shaped cross-section, which is installed between the intermediate portions of the front floor frames 18 and 18, is installed between the rear portions of the side sills 17 and 17, and is attached to the rear ends of the front floor frames 18 and 18. Joined box-shaped middle floor cross member, 23
Is a rear floor cross member having a box-shaped cross section which is provided between the rear frames 19 and 19 near the rear part thereof, and 24 is a gusset provided between the rear end of the side sill 17 and the side part of the rear frame 18. Here, in the case where an internal combustion engine is installed, the front half of the rear floor 14 is formed high with a step, and a rear seat is installed on the upper surface thereof.
4 A fuel tank is arranged between the left and right rear frames 19, 19 below the front half and between the middle floor cross member 22 and the rear floor cross member 24 before and after that, but in the case of the electric vehicle of the embodiment, Using this space, the battery 3 is mounted below the front half of the rear floor 14 so as to be dropped.

【０００９】即ち、リヤフロア１４前半部に、リヤフレ
ーム１９，１９間で、ミドルフロアクロスメンバ２２及
びリヤフロアクロスメンバ２４間にわたる開口部２５を
形成し、この開口部２５内に、バッテリ収納ボックス２
６の下半部を構成する図１１に示す如きボックス状のバ
ッテリセッティングベース２７を落とし込んで、その全
周を開口部２５に溶接接合する。そして、左右のフロン
トフロアフレーム１８，１８の後方に夫々直線的に延び
る断面ボックス状をなす一対のボックスロアフレーム２
８，２８を、ミドルフロアクロスメンバ２２とリヤフロ
アクロスメンバ２３との間に溶接接合して架設するとと
もに、このボックスロアフレーム２８，２８上面にバッ
テリセッティングベース２７の下面を溶接接合する。That is, an opening 25 is formed in the front half of the rear floor 14 between the rear frames 19 and 19 and between the middle floor cross member 22 and the rear floor cross member 24. In the opening 25, the battery storage box 2 is formed.
A box-shaped battery setting base 27 as shown in FIG. 11, which constitutes the lower half of the No. 6, is dropped and the entire circumference thereof is welded to the opening 25. A pair of box lower frames 2 each having a box-shaped cross section extending linearly behind the left and right front floor frames 18, 18, respectively.
8 and 28 are welded and installed between the middle floor cross member 22 and the rear floor cross member 23, and the lower surface of the battery setting base 27 is welded and bonded to the upper surfaces of the box lower frames 28 and 28.

【００１０】バッテリ収納ボックス２６の上半部は、図
１２に示すように、左右のバッテリサイドバルクヘッド
２９，２９、前方のバッテリフロントバルクヘッド３
１、後方のバッテリリヤバルクヘッド３２で構成されて
いる。バッテリサイドバルクヘッド２９，２９は、バッ
テリセッティングベース２７上部の左右上にフランジ溶
接接合する。バッテリフロントバルクヘッド３１は、左
右のリヤインナパネル３３，３３前部のフロントピラー
部３４，３４に両端を溶接接合するとともに、下面をリ
ヤフロア１４前端部上でその内部の断面ボックス部を構
成するミドルフロアクロスメンバ２２の上方に位置して
溶接接合する。バッテリリヤバルクヘッド３２は、下面
をバッテリセッティングベース２７上部の後上にフラン
ジ溶接接合するとともに、リヤフロア１４左右のダンパ
ベース部３５，３５に両端を溶接接合する。そして、バ
ッテリサイドバルクヘッド２９，２９の前後端を、バッ
テリフロントバルクヘッド３１及びバッテリリヤバルク
ヘッド３２に溶接接合する。As shown in FIG. 12, the upper half portion of the battery storage box 26 includes left and right battery side bulkheads 29, 29 and a front battery front bulkhead 3.
1. The rear battery rear bulkhead 32 is provided. The battery side bulkheads 29, 29 are flange-welded to the left and right above the upper part of the battery setting base 27. The battery front bulkhead 31 is welded at both ends to the front pillar portions 34, 34 at the front portions of the left and right rear inner panels 33, 33, and has a lower surface on the front end portion of the rear floor 14 that forms a box section inside the middle portion. It is located above the floor cross member 22 and welded. The lower surface of the battery rear bulkhead 32 is flange-welded to the upper rear of the upper portion of the battery setting base 27, and both ends are welded to the damper base portions 35, 35 on the left and right of the rear floor 14. Then, the front and rear ends of the battery side bulkheads 29, 29 are welded to the battery front bulkhead 31 and the battery rear bulkhead 32.

【００１１】こうして、リヤフロア１４前半部のスペー
スを、中央のバッテリ収納ボックス２６とその左右の室
の３つに分割し、バッテリフロントバルクヘッド３１と
バッテリリヤバルクヘッド３２の左右端上部間に連続す
るサイドサポート３６，３６をリヤインナパネル３３，
３３に溶接接合する。そして、バッテリ収納ボックス２
６内にバッテリ３を収納するとともに、その一側方の室
内にバッテリコントロールユニット４を収納して、他側
方のバッテリチャージャ５が位置する側の室内にはＤＣ
／ＤＣコンバータ６を収納する。ここで、バッテリサイ
ドバルクヘッド２９，２９、バッテリフロントバルクヘ
ッド３１、バッテリリヤバルクヘッド３２、サイドサポ
ート３６，３６の上面には、ねじ孔が形成されており、
中央のバッテリカバー３７及び左右のサイドカバー３
８，３８がねじ止めされるようになっている。３９はバ
ッテリセットプレートである。In this way, the space of the front half of the rear floor 14 is divided into three parts, that is, the central battery storage box 26 and the chambers on the left and right thereof, which are continuous between upper left and right ends of the battery front bulkhead 31 and the battery rear bulkhead 32. The side supports 36, 36 are attached to the rear inner panel 33,
Welded to 33. And the battery storage box 2
The battery 3 is housed in the interior 6, and the battery control unit 4 is housed in the room on one side, and the DC is installed in the room on the other side where the battery charger 5 is located.
The / DC converter 6 is housed. Here, screw holes are formed in the upper surfaces of the battery side bulkheads 29, 29, the battery front bulkhead 31, the battery rear bulkhead 32, and the side supports 36, 36.
Central battery cover 37 and left and right side covers 3
8, 38 are adapted to be screwed. 39 is a battery set plate.

【００１２】また、バッテリフロントバルクヘッド３１
には、図１３に示すように、バッテリフロントクロスメ
ンバ４１が設けられている。即ち、バッテリフロントバ
ルクヘッド３１の後面に、断面ボックス状のバッテリフ
ロントクロスメンバ４１を溶接接合するとともに、この
バッテリフロントクロスメンバ４１の両端を、フロント
ピラー部３４，３４に溶接接合している。ここで、フロ
ントピラー部３４内には、バッテリフロントクロスメン
バ４１の延長上に一致するガセット４２が設けられてお
り、４３はピラースチフナ、４４はピラーアウタパネ
ル、４５はシートベルトリトラクタ組込用の窓部、４６
はコントローラ類取付用の窓部である。Further, the battery front bulkhead 31
As shown in FIG. 13, a battery front cross member 41 is provided in the. That is, the battery front cross member 41 having a box-shaped cross section is welded and joined to the rear surface of the battery front bulkhead 31, and both ends of the battery front cross member 41 are welded and joined to the front pillar portions 34, 34. Here, in the front pillar portion 34, a gusset 42 that corresponds to the extension of the battery front cross member 41 is provided, 43 is a pillar stiffener, 44 is a pillar outer panel, and 45 is a window for incorporating a seat belt retractor. Part, 46
Is a window for mounting the controllers.

【００１３】更に、バッテリフロントバルクヘッド３１
の前面には、後方の荷室内の荷物の飛び出しを防ぐ門型
のプロテクタパイプ４７がねじ止めにより備えられてい
る。また、ボックスロアフレーム２８，２８間には、ヒ
ータ用の燃料タンク４８が配設されている。以上の構成
による電気自動車のバッテリ搭載構造としたので、即
ち、図１４及び図１５にも拡大して示したように、先
ず、バッテリ収納ボックス２６下半部を構成するバッテ
リセッティングベース２７下にボックスロアフレーム２
８，２８を通したため、バッテリ３の上下荷重に対する
保持強度を充分に確保できる。しかも、このボックスロ
アフレーム２８，２８は、フロントフロアフレーム１
８，１８後端のミドルフロアクロスメンバ２２と、リヤ
フレーム１９，１９間のリヤフロアクロスメンバ２３と
の間を、フロントフロアフレーム１８，１８の延長上で
結合してなるため、フロントフロア１３及びリヤフロア
１４下のフレーム結合効率をアップさせて、特に、曲げ
に対するボディ剛性を高く確保できる。Further, the battery front bulkhead 31
A gate-shaped protector pipe 47 is provided on the front surface of the with a screw to prevent the luggage in the rear luggage compartment from jumping out. A fuel tank 48 for a heater is arranged between the box lower frames 28, 28. Since the battery mounting structure of the electric vehicle having the above-described configuration is adopted, that is, as shown in an enlarged view in FIGS. 14 and 15, first, the box below the battery setting base 27 that constitutes the lower half of the battery storage box 26 is formed. Lower frame 2
Since it passes through No. 8 and 28, it is possible to sufficiently secure the holding strength against the vertical load of the battery 3. Moreover, this box lower frame 28, 28 is the front floor frame 1
Since the middle floor cross member 22 at the rear end of the 8 and 18 and the rear floor cross member 23 between the rear frames 19 and 19 are connected on the extension of the front floor frames 18 and 18, the front floor 13 and the rear floor. It is possible to increase the frame coupling efficiency of the lower part 14 and especially to secure high body rigidity against bending.

【００１４】そして、ボックスロアフレーム２８，２８
を前後に通しているため、フレーム自身に対してチッピ
ングダメージを受けにくいものとなることから、錆にも
強い構造である。また、ボックスロアフレーム２８，２
８間にヒータ用の燃料タンク４８を配設したことによ
り、ヒータ用燃料タンク４８の保護も期待できる。更
に、リヤフロア１４前部下のミドルフロアクロスメンバ
２２と、その上方のバッテリフロントバルクヘッド３１
後面に設けられて、センターピラー部３４，３４間に架
設したバッテリフロントクロスメンバ４１とによって、
バッテリ３の前方における強度を充分に確保でき、特
に、捩りに対するボディ剛性を高く確保できる。The box lower frames 28, 28
Since it goes through the front and back, it is less susceptible to chipping damage to the frame itself, so it has a structure that is also resistant to rust. In addition, the box lower frame 28, 2
By disposing the fuel tank 48 for the heater between the eight fuel cells, protection of the fuel tank 48 for the heater can be expected. Further, the middle floor cross member 22 below the front part of the rear floor 14 and the battery front bulkhead 31 above it.
By the battery front cross member 41 provided on the rear surface and installed between the center pillar portions 34, 34,
Sufficient strength can be secured in front of the battery 3, and particularly high body rigidity against torsion can be secured.

【００１５】そして、以上の構成によるバッテリ搭載部
の後方は、スペアタイヤ搭載部となっている。即ち、リ
ヤフロア１４の後半部上において、バッテリサイドバル
クヘッド２９，２９の延長上に一致する左右のスペアタ
イヤサイドバルクヘッド５１，５１を、前方のバッテリ
リヤバルクヘッド３２、リヤフロア１４上面、後方のリ
ヤパネル１５に溶接接合する。また、スペアタイヤサイ
ドバルクヘッド５１とダンパベース部３５との間にサイ
ドサポート５２を溶接接合し、スペアタイヤサイドバル
クヘッド５１とリヤパネル１５との間にリヤサポート５
３を溶接接合し、リヤインナパネル３３とリヤパネル１
５とにわたるコーナーサポート５４を溶接接合する。The rear of the battery mounting portion having the above structure is a spare tire mounting portion. That is, on the rear half of the rear floor 14, the left and right spare tire side bulkheads 51, 51, which coincide with the extension of the battery side bulkheads 29, 29, are attached to the front battery rear bulkhead 32, the upper surface of the rear floor 14, and the rear rear panel. Welded to 15. Further, the side support 52 is welded and joined between the spare tire side bulkhead 51 and the damper base portion 35, and the rear support 5 is provided between the spare tire side bulkhead 51 and the rear panel 15.
3 are welded to each other to form a rear inner panel 33 and a rear panel 1.
The corner support 54 extending over 5 is welded and joined.

【００１６】そして、リヤフロア１４後半部上の中央に
は、スペアタイヤアンカーブラケット５５を溶接接合に
より起設する。このスペアタイヤアンカーブラケット５
５は、左右方向に貫通する空間部を有するとともに、後
下がりに傾斜した上面にアンカーナット５６を備えてい
る。更に、バッテリリヤバルクヘッド３２の後面に、上
面が後下がりに傾斜したプレートの接合体による断面三
角形状のスペアタイヤセッティングクロスメンバ５７を
溶接接合する。このスペアタイヤセッティングクロスメ
ンバ５７の両端は、左右のダンパベース部３５，３５に
溶接接合されている。スペアタイヤ７は、前側をスペア
タイヤセッティングクロスメンバ５７の後下がり傾斜面
に載せるとともに、スペアタイヤアンカーブラケット５
５の後下がり傾斜面に載せたホイールセンター孔部をア
ンカープレート５８により押さえて、アンカーボルト５
９をアンカーナット５６にねじ込むことで固定される。A spare tire anchor bracket 55 is erected by welding at the center on the rear half of the rear floor 14. This spare tire anchor bracket 5
5 has a space portion penetrating in the left-right direction and has an anchor nut 56 on the upper surface inclined rearward and downward. Further, on the rear surface of the battery rear bulkhead 32, a spare tire setting cross member 57 having a triangular cross section formed by a joined body of plates whose upper surface is inclined rearward is welded. Both ends of the spare tire setting cross member 57 are welded to the left and right damper base portions 35, 35. The spare tire 7 is mounted on the front side of the spare tire setting cross member 57 on the rear downward slope, and the spare tire anchor bracket 5 is mounted.
The wheel center hole placed on the rearwardly inclined surface of No. 5 is pressed by the anchor plate 58, and the anchor bolt 5
It is fixed by screwing 9 into the anchor nut 56.

【００１７】また、スペアタイヤアンカーブラケット５
５の左右方向に貫通する空間部内には、ジャッキ８が収
納されており、このジャッキ８は、スペアタイヤアンカ
ーブラケット５５とリヤフロア１４との間に挟み込まれ
た状態で固定される。尚、以上のスペアタイヤ搭載部
は、スペアタイヤサイドバルクヘッド５１，５１上に載
せた、例えば折り畳み式のスペアタイヤリッド６１によ
り覆われており、このスペアタイヤリッド６１とバッテ
リカバー３７及びサイドカバー３８，３８とによって、
フラットな荷室床面が形成される。The spare tire anchor bracket 5
A jack 8 is housed in a space passing through in the left-right direction of 5, and the jack 8 is fixed in a state of being sandwiched between the spare tire anchor bracket 55 and the rear floor 14. The spare tire mounting portion described above is covered by, for example, a folding spare tire lid 61 mounted on the spare tire side bulkheads 51, 51. The spare tire lid 61, the battery cover 37, and the side cover 38 are covered. , 38 and
A flat luggage compartment floor surface is formed.

【００１８】以上の構成による電気自動車のスペアタイ
ヤ搭載構造としたので、即ち、スペアタイヤ７を前上が
りの傾斜状態にセットしたため、バッテリ収納ボックス
２６後方のスペアタイヤ搭載スペースの前後方向寸法を
小さくできるとともに、スペアタイヤ７の上端をバッテ
リ収納ボックス２６上面より低く設定したため、荷室床
面のフラット化が得られる。しかも、バッテリリヤバル
クヘッド３２後面に設けられて、スペアタイヤ７の前側
を載せる上面が後下がりに傾斜したプレートの接合体に
よる断面三角形状のスペアタイヤセッティングクロスメ
ンバ５７を、左右のダンパベース部３５，３５間に架設
したため、バッテリ３の後方における強度を充分に確保
でき、特に、捩りに対するボディ剛性を高く確保でき
る。Since the spare tire mounting structure of the electric vehicle having the above-described structure is adopted, that is, the spare tire 7 is set in the forwardly inclined state, the front-rear dimension of the spare tire mounting space behind the battery storage box 26 can be reduced. At the same time, since the upper end of the spare tire 7 is set lower than the upper surface of the battery storage box 26, the floor of the luggage compartment can be flattened. In addition, a spare tire setting cross member 57 having a triangular cross section formed by a joined body of the plates provided on the rear surface of the battery rear bulkhead 32 and having the upper surface on which the front side of the spare tire 7 is placed is inclined rearward and downward, and the left and right damper base parts 35. , 35, it is possible to secure sufficient strength in the rear of the battery 3, and particularly to secure high body rigidity against torsion.

【００１９】また、スペアタイヤアンカーブラケット５
５内にジャッキ８を格納しているため、従来は利用され
なかったスペアタイヤアンカーブラケット内のデッドス
ペースを有効に活用できる。尚、細部の具体的構造等に
ついては、実施例の他、適宜に変更可能であることは勿
論である。The spare tire anchor bracket 5
Since the jack 8 is stored inside the spare tire 5, the dead space in the spare tire anchor bracket, which has not been used conventionally, can be effectively utilized. It is needless to say that the specific structure of the details can be appropriately changed other than the embodiment.

【００２０】[0020]

【発明の効果】以上のように本発明の電気自動車の車体
構造によれば、左右のフロアフレーム後端のクロスメン
バと、左右のリヤフレームと、その間のクロスメンバと
で囲まれたフロア開口部内にバッテリ収納ボックスを固
定して、その前後の両クロスメンバ間に、フロアフレー
ムの後方に直線的に延びてバッテリ収納ボックスの下面
を支持する左右一対のボックスロアフレームを接合した
ため、バッテリ収納ボックス下にボックスロアフレーム
を通すことにより、バッテリの上下荷重に対する保持強
度の向上を達成できるとともに、フロアフレーム後端の
クロスメンバと、リヤフレーム間のクロスメンバとの間
を、フロアフレーム延長上のボックスロアフレームで結
合することにより、フロア下のフレーム結合効率がアッ
プし、特に、曲げに対するボディ剛性の向上を達成する
ことができる。また、ボックスロアフレームを前後に通
すことにより、フレーム自身に対してチッピングダメー
ジを受けにくいものとなるので、錆にも強い構造となる
といった利点も得られる。As described above, according to the vehicle body structure of the electric vehicle of the present invention, the inside of the floor opening surrounded by the cross members at the rear ends of the left and right floor frames, the left and right rear frames, and the cross members between them. Since the battery storage box is fixed to the front and rear cross members, a pair of left and right box lower frames that linearly extend to the rear of the floor frame and support the lower surface of the battery storage box are joined between the cross members. By passing the box lower frame through the box, the holding strength against the vertical load of the battery can be improved, and the box lower on the floor frame extension is installed between the cross member at the rear end of the floor frame and the cross member between the rear frames. By connecting with a frame, the frame connection efficiency under the floor is improved, especially when bending It is possible to achieve improved body rigidity against. Further, by passing the box lower frame back and forth, chipping damage to the frame itself is less likely to occur, so that there is also an advantage that the structure is resistant to rust.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明を適用した電気自動車の一例を示す概略
透視側面図FIG. 1 is a schematic perspective side view showing an example of an electric vehicle to which the present invention is applied.

【図２】同じくフロア面を示す概略平面図FIG. 2 is a schematic plan view showing a floor surface of the same.

【図３】バッテリ収納部及びスペアタイヤ収納部を拡大
して示す縦断側面図FIG. 3 is a vertical cross-sectional side view showing an enlarged battery storage portion and spare tire storage portion.

【図４】バッテリ収納部の縦断正面図FIG. 4 is a vertical sectional front view of a battery storage portion.

【図５】バッテリ収納部及びスペアタイヤ収納部の概略
平面図FIG. 5 is a schematic plan view of a battery storage part and a spare tire storage part.

【図６】フロントフロア面から後方部の車室内を示すバ
ルクヘッド等の組付前の斜視図FIG. 6 is a perspective view of the interior of the vehicle in the rear portion from the front floor surface before assembly of a bulkhead and the like.

【図７】同じくバルクヘッド等の組付後の斜視図FIG. 7 is a perspective view of the bulkhead and the like after assembling.

【図８】同じくバッテリ等を収納した状態の斜視図FIG. 8 is a perspective view showing a state in which a battery and the like are also stored.

【図９】同じくプロテクタパイプ等の組付後の斜視図FIG. 9 is a perspective view after assembling the protector pipe and the like.

【図１０】車体フレーム全体を示す概略平面図FIG. 10 is a schematic plan view showing the entire body frame.

【図１１】バッテリセッティングベースとそのロアーフ
レームの分解斜視図FIG. 11 is an exploded perspective view of a battery setting base and its lower frame.

【図１２】同じくバッテリセッティングベースとそのバ
ルクヘッドの分解斜視図FIG. 12 is an exploded perspective view of the battery setting base and its bulkhead.

【図１３】その前方のバルクヘッド及びクロスメンバ等
の分解斜視図FIG. 13 is an exploded perspective view of a bulkhead, a cross member and the like in front of it.

【図１４】本発明に係る要部構造を示す縦断側面図FIG. 14 is a vertical cross-sectional side view showing the main structure according to the present invention.

【図１５】同じく縦断正面図[Fig. 15] Similarly, a vertical sectional front view

【図１６】従来構造の一例を示す縦断側面図FIG. 16 is a vertical sectional side view showing an example of a conventional structure.

【図１７】同じく他の従来構造例を示す縦断側面図FIG. 17 is a vertical sectional side view showing another example of the conventional structure.

【符号の説明】[Explanation of symbols]

１…電動モータ、３…バッテリ、１３…フロントフロ
ア、１４…リヤフロア、１８…フロントフロアフレー
ム、１９…リヤフレーム、２２…ミドルフロアクロスメ
ンバ、２３…リヤフロアクロスメンバ、２５…開口部、
２６…バッテリ収納ボックス、２７…バッテリセッティ
ングベース、２８…ボックスロアフレーム、２９…バッ
テリサイドバルクヘッド、３１…バッテリフロントバル
クヘッド、３２…バッテリリヤバルクヘッド。DESCRIPTION OF SYMBOLS 1 ... Electric motor, 3 ... Battery, 13 ... Front floor, 14 ... Rear floor, 18 ... Front floor frame, 19 ... Rear frame, 22 ... Middle floor cross member, 23 ... Rear floor cross member, 25 ... Opening part,
26 ... Battery storage box, 27 ... Battery setting base, 28 ... Box lower frame, 29 ... Battery side bulkhead, 31 ... Battery front bulkhead, 32 ... Battery rear bulkhead.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 フロア下に、前後方向に延びる左右一対
のフロアフレーム、その後端に接合した左右方向に延び
るクロスメンバ、その左右に接合した後方に延びる一対
のリヤフレーム、その間に架設した左右方向に延びるク
ロスメンバを配設してなる自動車の車体構造において、
前記フロアフレーム後方の前記リヤフレーム及び両クロ
スメンバで囲まれる前記フロア部分に、電気自動車駆動
用のバッテリ配置用の開口部を形成して、この開口部内
に、バッテリ収納ボックスを固定するとともに、このバ
ッテリ収納ボックスの下面を支持して、前記フロアフレ
ームの後方に直線的に延びる左右一対のボックスロアフ
レームを、前記両クロスメンバ間に接合したことを特徴
とする電気自動車の車体構造。1. A pair of left and right floor frames extending in the front-rear direction, a cross member extending in the left-right direction joined to the rear ends of the floor, a pair of rear frames extending in the left-right direction, which are joined to the left and right, and a left-right direction erected therebetween. In a vehicle body structure in which a cross member extending to the
An opening for arranging a battery for driving an electric vehicle is formed in the floor portion surrounded by the rear frame and both cross members behind the floor frame, and a battery storage box is fixed in the opening. A vehicle body structure for an electric vehicle, comprising: a pair of left and right box lower frames, which linearly extend rearward of the floor frame, supported between the cross members while supporting a lower surface of the battery storage box.
JP4034395A 1992-01-24 1992-01-24 Car body structure of electric automobile Withdrawn JPH05201356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4034395A JPH05201356A (en) 1992-01-24 1992-01-24 Car body structure of electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4034395A JPH05201356A (en) 1992-01-24 1992-01-24 Car body structure of electric automobile

Publications (1)

Publication Number Publication Date
JPH05201356A true JPH05201356A (en) 1993-08-10

Family

ID=12412996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4034395A Withdrawn JPH05201356A (en) 1992-01-24 1992-01-24 Car body structure of electric automobile

Country Status (1)

Country Link
JP (1) JPH05201356A (en)

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