JP3817953B2 - Vehicle battery mounting structure - Google Patents

Vehicle battery mounting structure Download PDF

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JP3817953B2
JP3817953B2 JP04246599A JP4246599A JP3817953B2 JP 3817953 B2 JP3817953 B2 JP 3817953B2 JP 04246599 A JP04246599 A JP 04246599A JP 4246599 A JP4246599 A JP 4246599A JP 3817953 B2 JP3817953 B2 JP 3817953B2
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vehicle
battery
disposed
mounting structure
width direction
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JP2000238541A (en
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孝 水間
直浩 今岡
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Mazda Motor Corp
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Mazda Motor Corp
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    • 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

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  • Battery Mounting, Suspending (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Body Structure For Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Description

【０００１】
【発明の属する技術分野】
この発明は、例えば、電気自動車やハイブリッド自動車などの車両に搭載されるような車両のバッテリ搭載構造に関する。
【０００２】
【従来の技術】
従来、上述例の車両には電気モータを駆動するためのバッテリが搭載されている。このバッテリの搭載位置としては諸種の場所が考えられるが、車室空間、荷室空間を阻害しない場合には、例えば特開平５−２３８２７３号公報に記載の如くフロアパネルの下部にバッテリトレイを介して搭載する構成が考えられる。
【０００３】
この特開平５−２３８２７３号公報のようにフロアパネルの下部にバッテリを搭載した場合には、車室空間、荷室空間を阻害しない利点がある反面、車両の最低地上高が不利となり、加えて車両に対する側突時の剛性を向上させるためには、別途に新たなクロスメンバを追加する必要がある等の問題点があった。
【０００４】
【発明が解決しようとする課題】
この発明は、バッテリをフロアバネル上に車幅方向に設け、バッテリの車外側の端部を車両側部の強度部材(サイドシル、センタピラー参照)に固定することで、バッテリにより強度部材を補強することができ、別途クロスメンバを追加することなく側突に対する車体剛性の向上を図ることができ、車両の最低地上高も有利となり、しかも車両中央において車両前後方向に延びるトンネル部の両側に上述のバッテリを配設し、両側に配設されたバッテリ相互間を、トンネル部を跨ぐ補強部材で連結することで、デッドスペースを有効利用してバッテリを配設することができ、車室内の空間の有効利用を図りつつ、バッテリ容量を増加することも可能となる車両のバッテリ搭載構造の提供を目的とする。
【０００５】
この発明の一実施態様は、上述のバッテリの車幅方向の両端部を、車両上下方向に配設されたピラーの基部に固定することで、バッテリを側突時のピラー内倒れ防止用の補強部材として有効利用し、ピラーの内倒れを阻止することができる車両のバッテリ搭載構造の提供を目的とする。
【０００６】
この発明の一実施態様は、車幅方向に配設されたバッテリを、シートの下方に対応した位置に配設することで、車両側部の強度部材の補強を兼ねるバッテリが、シートの下方つまり乗員着座位置の下方に対応して配設され、側突時における乗員保護性能の向上を図ることができる車両のバッテリ搭載構造の提供を目的とする。
【０００７】
【課題を解決するための手段】
この発明による車両のバッテリ搭載構造は、車両にバッテリが配設された車両のバッテリ搭載構造であって、上記バッテリは車両中央において車両前後方向に延びるトンネル部両側のフロアパネル上に車幅方向に配設され、上記バッテリの車外側の端部を車両側部の強度部材に固定すると共に、両側に配設されたバッテリ相互間が上記トンネル部を跨ぐ補強部材で連結されたものである。
【０００８】
この発明の一実施態様においては、上記バッテリの車幅方向の両端部は車両上下方向に配設されたピラーの基部に固定されてなるものである。
【０００９】
この発明の一実施態様においては、車幅方向に配設されたバッテリは、シートの下方に対応した位置に配設されたものである。
【００１０】
【発明の作用及び効果】
この発明によれば、上述のバッテリをフロアパネル上に車幅方向に設けて、該バッテリの車外側の端部を車両側部の強度部材に固定したので、バッテリにより車両側部の強度部材を補強することができる。
この結果、別途クロスメンバを追加することなく側突に対する車体剛性の向上を図って、側突時の車両変形を防止することができる効果があり、加えて、車両の最低地上高も有利となる効果がある。
【００１１】
しかも、上述のバッテリをトンネル部の両側に配設し、両側に配設されたバッテリ相互間を、トンネル部を跨ぐ補強部材で連結したので、車両両側部の強度部材間がバッテリと補強部材とで車幅方向に連結され、これら両者(バッテリ、補強部材)がクロスメンバと同様の作用を奏する。
さらに、トンネル部の左右両側のデッドスペースを有効利用してバッテリを配設することができ、車室内の空間の有効利用を図りつつ、バッテリ容量を増加することも可能となる効果がある。
【００１２】
この発明の一実施態様によれば、上述のバッテリの車幅方向の両端部を、車両上下方向に配設されたピラーの基部に固定したので、バッテリを側突時のピラー内倒れ防止用の補強部材として有効利用し、ピラーの内倒れを阻止することができる効果がある。
【００１３】
この発明の一実施態様によれば、車幅方向に配設された上述のバッテリを、シートの下方に対応した位置に配設したので、車両側部の強度部材の補強を兼ねるバッテリが、シートの下方つまり乗員着座位置の下方に対応して配設され、この結果、側突時における乗員保護性能の向上を図ることができる効果がある。
【００１４】
【実施例】
この発明の一実施例を以下図面に基づいて詳述する。
図面は車両のバッテリ搭載構造を示し、図１において、カウルパネル１とダッシュアッパパネル２とを接合して、これら両者１，２間には車幅方向に延びるカウル閉断面３を構成している。
【００１５】
上述のダッシュアッパパネル２の前端下部とフロントフロアパネル４との間にはダッシュロアパネル５を接合し、このダッシュロアパネル５でエンジンルーム６と車室とを区画し、エンジンルーム６内にはエンジン／モータユニット７を搭載している。
【００１６】
上述のフロントフロアパネル４の後部には下方に立ち下がる段差部８を介してフラット状のバッテリ収納フロア９を一体形成し、このバッテリ収納フロア９の後部にはキックアップ部１０を介してリヤフロアパネル１１を一体または一体的に連設形成すると共に、このリアフロアパネル１１の後部にはスペアタイヤパン１２を一体的に形成している。
【００１７】
上述のフロントフロアパネル４およびバッテリ収納フロア９には、図２に示すように車両中央において車両前後方向に延びるトンネル部１３が一体形成されており、バッテリ収納フロア９と対応するトンネル部１３のリヤ側過半部はそれよりも車両前方側のトンネル部分に対して、そのトップデッキ部が低くなるように形成された低デッキ部１３ａに構成されている。
【００１８】
上述の段差部８の直前位置においてフロントフロアパネル４上には車両左右両側部の強度部材としてサイドシル１４，１４間を車幅方向に連結するクロスメンバ１５が設けられている。
【００１９】
この実施例ではクロスメンバ１５の車幅方向中央部にトンネル部１３に対応する凹部１５ａを設け、単一のクロスメンバ１５で左右のサイドシル１４，１４間を連結したが、トンネル部１３の左側の立壁と左側のサイドシル１４とを連結するクロスメンバ、トンネル部１３の右側の立壁と右側のサイドシル１４とを連結するクロスメンバの２部品により構成してもよい。
【００２０】
上述のサイドシル１４は図３に示すようにサイドシルインナパネル１６とサイドシルアウタパネル１７とを接合して、車両前後方向に延びる閉断面１８を有する強度部材である。
【００２１】
ところで、図１に示すようにフロントシート１９のシートバック２０と左右横方向に略対向するように車両側部には強度部材としてのセンタピラー２１が設けられている。
このセンタピラー２１は車両上下方向に配設された強度部材で、図４に示す如くセンタピラーインナ２２とセンタピラーアウタ２３とを接合して、車両の上下方向に延びる閉断面２４を有し、このセンタピラー２１で下部のサイドシル１４と上部のルーフサイド部とを上下方向に連結している。
【００２２】
上述のトンネル部１３の左右両側においてバッテリ収納フロア９の上部には電気モータ駆動用のバッテリ２５，２５が搭載されている。これら左右の各バッテリ２５，２５はフロントシート１９の下方に対応する位置においてバッテリ収納フロア９に車幅方向に設けて搭載されており、その搭載構造は左右対称となっている。
【００２３】
すなわち、図３、図４、図５に示すように、バッテリ２５の左右の側面においてその前後両下部には１つのバッテリ２５当り合計４つのＬ字状のブラケット２６…を予め接合する一方、バッテリ収納フロア９にはスタッドボルト２７…を予め立設固定し、ブラケット２６のボルト挿通孔２６ａ(図５参照)をスタッドボルト２７に装着して、ナット２８をスタッドボルト２７に螺合することにより、バッテリ収納フロア９にバッテリ２５を搭載したものである。
【００２４】
しかも、図２、図４に示す如く２つのバッテリ２５，２５の車幅方向の両端部、つまり右側のバッテリ２５の右端部と左側バッテリ２５の左側部とはブラケット２９，２９を介してそれぞれ同側のセンタピラー２１の基部に固定されている。
【００２５】
上述のブラケット２９は図５に示すように車幅方向に延びる天壁２９ａと、この天壁２９ａの前後に一体に折曲げ形成されて同方向に延びるビーム部２９ｂとで門形状に構成されると共に、バッテリ２５の上面に沿うフランジ部２９ｃと、センタピラー２１の基部に沿うフランジ部２９ｄと、これらのフランジ部２９ｃ，２９ｄを接続する連設フランジ２９ｅとが一体に形成されたものである。
上述のフランジ部２９ｃにはボルト挿通孔３０，３０を形成する一方、フランジ部２９ｄにはボルト挿通用の長孔３１，３１を形成している。
【００２６】
またバッテリ２５の上面にはボルト挿通孔３０…に対応する如く予めスタッドボルト３２…を立設固定し、センタピラー２１の基部にはレインフォースメント３３に植設されたスタッドボルト３４…を閉断面１８内から挿通孔３５を介して車内側へ臨設させている。ここで、上述のレインフォースメント３３はセンタピラー２１の基部において閉断面１８内部側に予に接合され、またスタッドボルト３４はフランジ部２９ｄの長孔３１と対応する。
【００２７】
而して図４に示す如く、ブラケット２９の長孔３１をスタッドボルト３４に装着すると共に、ボルト挿通孔３０をスタッドボルト３２に装着して、ナット３６，３７を各スタッドボルト３２，３４に螺合することにより、バッテリ２５，２５の車幅方向の両端部をセンタピラー２１の基部に連結固定したものである。
【００２８】
上述のブラケット２９による連結固定部位と対応して、２つのバッテリ２５，２５の相互間を、トンネル部１３(詳しくは低デッキ部１３ａ)を跨ぐ補強部材３８で左右に連結している。
【００２９】
この補強部材３８は図２、図４、図５に示すようにトンネル部１３の低デッキ部１３ａ上方において車幅方向に延びるパイプ３９と、このパイプ３９の両端に接合フランジ４０，４０を介して一体的に接続された逆Ｌ字状のブラケット４１，４１とを備えている。
【００３０】
上述のブラケット４１には図５に示すようにボルト挿通用の長孔４２，４２を形成する一方、図４に示すようにバッテリ２５，２５側には長孔４２に対応させて予めスタッドボルト４３，４３を接合し、左右の各ブラケット４１，４１の長孔４２をスタッドボルト４３に装着して、ナット４４をスタッドボルト４３に螺合することにより、左右のバッテリ２５，２５間を補強部材３８で相互連結したものである。
【００３１】
一方、図２、図３に示すようにバッテリ２５の前部においては左右のバッテリ２５，２５の車内側の端部とトンネル部１３とを補強部材４５，４５にて相互に連結している。
【００３２】
つまり、パイプ４６とフランジ部４７と逆Ｌ字状のブラケット４８とを備えた２つの補強部材４５，４５を設け、図２、図３に示すように左側のバッテリ２５の右端部とトンネル部１３の左側縦壁とを１つの補強部材４５で相互連結し、右側のバッテリ２５の左端部とトンネル部１３の右側縦壁とを他の１つの補強部材４５で相互連結している。
【００３３】
ところで、上述の各バッテリ２５，２５の上方部は図１に示すようにクロスメンバ１５とキックアップ部１０との上部相互間に略水平状に張架されるプレート４９により覆われるが、この実施例では該プレート４９上にフロントシート１９を配設する関係上、各ブラケット２９，４１には図５に示すように***部５０，５１が一体形成され、一方に***部５０にはシートレール５２連結用のスタッドボルト５３を植設し、他方の***部５１にはシートレール５２連結用の取付け孔５４を形成している。
【００３４】
而して上述の各***部５０，５１には図１に示すようにプレート４９を介してフロントシート１９のシートレール５２(詳しくはシートスライドレール取付け用のブラケット)が取付けられる。
【００３５】
なお、図１において５５はフロントサイドメンバ、５６，５７，５８はクロスメンバ、５９は燃料タンク、６０は前車輪、６１は後車輪であり、燃料タンク５９内の燃料はエンジン／モータユニット７を内燃機関して用いる時に供給され、バッテリ２５の直流電源はエンジン／モータユニット７をモータとして用いる時に電力供給される。
【００３６】
このように上記構成の車両のバッテリ搭載構造によれば、上述のバッテリ２５をフロアパネル(バッテリ収納フロア９参照)上に車幅方向に設けて、該バッテリ２５の車外側の端部を車両側部の強度部材(センタピラー２１参照)に固定したので、バッテリ２５により車両側部の強度部材(センタピラー２１参照)を補強することができる。
この結果、別途クロスメンバを追加することなく側突に対する車体剛性の向上を図って、側突時の車両変形を防止することができる効果があり、加えて、車両の最低地上高も有利となる効果があり、クロスメンバ追加による重量増加も招かない。
【００３７】
しかも、上述の複数のバッテリ(この実施例では２つのバッテリ２５，２５)をトンネル部１３の両側に配設し、両側に配設されたバッテリ２５，２５相互間を、トンネル部１３を跨ぐ補強部材３８で連結したので、車両両側部の強度部材(センタピラー２１参照)間がバッテリ２５と補強部材３８とで車幅方向に連結され、これら両者(バッテリ２５、補強部材３８)がクロスメンバと同様の作用を奏する。
また、トンネル部１３の左右両側のデッドスペースを有効利用してバッテリ２５を配設することができ、車室内の空間の有効利用を図りつつ、バッテリ容量を増加することも可能となる効果がある。
【００３８】
さらに、上述の複数のバッテリ２５，２５の車幅方向の両端部を、車両上下方向に配設されたピラー(センタピラー２１参照)の基部に固定したので、バッテリ２５を側突時のピラー内倒れ防止用の補強部材として有効利用し、ピラー(センタピラー２１参照)の内倒れを阻止することができる効果がある。
【００３９】
加えて、車幅方向に配設された上述のバッテリ２５を、シート(フロントシート１９参照)の下方に対応した位置に配設したので、車両側部の強度部材(センタピラー２１参照)の補強を兼ねるバッテリ２５が、シート(フロントシート１９参照)の下方つまり乗員着座位置の下方に対応して配設され、この結果、側突時における乗員保護性能の向上を図ることができる効果がある。
【００４０】
また実施例で示したように、車幅方向に延びるビーム部２９ｂを備えたブラケット２９で、バッテリ２５の車外側の端部とセンタピラー２１の基部とを連結固定すると、このビーム部２９ｂが側突荷重に対抗するので、側突時の車両変形をより一層良好に防止することができる効果がある。
【００４１】
図６、図７は車両のバッテリ搭載構造の他の実施例を示し、図５で図示したブラケット２９に代えて他のブラケット６２を用いるものである。
このブラケット６２は図７に拡大して示すように、バッテリ２５の上面に沿う底部６３と、センタピラー２１の基部に沿う側部６４と、車幅方向に延びる前後一対の略三角形状のガセット部６５，６５とを一体形成したもので、低部６３にはスタッドボルト３２に対応するボルト挿通孔６６を形成する一方、側部６４にはスタッドボルト３４に対応するボルト挿通用の長孔６７を形成している。
【００４２】
図５に示すブラケット２９に代えて図７のブラケット６２を用いても、ガセット部６５，６５が側突荷重に対抗するので、側突時の車両変形をより一層良好に防止することができる効果がある。
なお、その他の点については先の実施例とほぼ同様の作用、効果を奏するので、図６において前図と同一の部分には同一符号を付して、その詳しい説明を省略する。
【００４３】
この発明の構成と、上述の実施例との対応において、
この発明の車両は、実施例の電気自動車またはハイブリッド自動車に対応し、
以下同様に、
バッテリを設けるフロアパネルは、バッテリ収納フロア９に対応し、
強度部材は、センタピラー２１に対応し、
ピラーは、センタピラー２１に対応し、
シートは、フロントシート１９に対応するも、
この発明は、上述の実施例の構成のみに限定されるものではない。
【００４４】
例えばバッテリ２５の車外側の端部を強度部材に固定するところのブラケット２９，６２の固定位置を、センタピラー２１の基部とサイドシル１４との中間部に設定して、側突時にセンタピラー２１とサイドシル１４との両者の変形を防止すべく構成してもよく、上述のブラケット２９，６２をサイドシルインナパネル１６に固定すべく構成してもよい。
【００４５】
また上記実施例においては各要素９，２１，２５側にスタッドボルト２７，３４，３２，４３を植設し、ナット２８，３７，３６，４４によりブラケット２６，２９，４１または６２を取付けるように構成したが、各要素９，２１，２５側に予めナットを接合固定して、締付けボルトにてブラケット２６，２９，４１または６２を取付けるように構成してもよく、ボルト・ナット以外の他の固定手段を用いてもよい。
【図面の簡単な説明】
【図１】 本発明の車両のバッテリ搭載構造を示す側面図。
【図２】 図１の要部をリヤ側上方から見た状態で示す斜視図。
【図３】 図２のＡ−Ａ線矢視断面図。
【図４】 図２のＢ−Ｂ線矢視断面図。
【図５】 リヤ側から見た要部の分解斜視図。
【図６】 本発明の車両のバッテリ搭載構造の他の実施例を示す断面図。
【図７】 ブラケットの斜視図。
【符号の説明】
９…バッテリ収納フロア(フロアパネル)
１３…トンネル部
１９…フロントシート(シート)
２１…センタピラー(強度部材)
２５…バッテリ
３８…補強部材[0001]
BACKGROUND OF THE INVENTION
This invention relates to, for example, a battery mounting structure for a vehicle, such as mounted on a vehicle such as an electric vehicle or a hybrid car.
[0002]
[Prior art]
Conventionally, a battery for driving an electric motor is mounted on the vehicle of the above-described example. Various positions are conceivable as the battery mounting position. However, in the case where the vehicle compartment space and the cargo space are not obstructed, for example, as described in JP-A-5-238273, a battery tray is provided below the floor panel. Can be installed.
[0003]
When a battery is mounted at the lower part of the floor panel as in JP-A-5-238273, there is an advantage that the vehicle compartment space and the cargo space are not obstructed, but the minimum ground clearance of the vehicle is disadvantageous. In order to improve the rigidity at the time of a side collision with the vehicle, there is a problem that a new cross member needs to be added separately.
[0004]
[Problems to be solved by the invention]
This invention is provided in the vehicle width direction of the battery on Furoabaneru, the end of the exterior of the battery by fixing the strength members of the vehicle side (see side sill, center pillar), to reinforce the strength member by a battery The vehicle body rigidity against side collision can be improved without adding a separate cross member, and the minimum ground clearance of the vehicle is also advantageous , and the above-mentioned is provided on both sides of the tunnel portion extending in the vehicle front-rear direction in the center of the vehicle. By arranging the batteries and connecting the batteries arranged on both sides with a reinforcing member straddling the tunnel part, it is possible to arrange the battery effectively using the dead space, It is an object to provide a battery mounting structure for a vehicle that can increase battery capacity while achieving effective use.
[0005]
In one embodiment of the present invention, both ends of the battery in the vehicle width direction are fixed to the bases of pillars arranged in the vehicle vertical direction, thereby reinforcing the battery to prevent falling in the pillar at the time of a side collision. An object of the present invention is to provide a vehicle battery mounting structure that can be effectively used as a member and can prevent the pillar from falling down.
[0006]
In one embodiment of the present invention, the battery disposed in the vehicle width direction is disposed at a position corresponding to the lower portion of the seat, so that the battery that also serves as reinforcement of the strength member of the vehicle side portion is located below the seat. An object of the present invention is to provide a battery mounting structure for a vehicle that is disposed corresponding to a position below the occupant seating position and that can improve the occupant protection performance in a side collision.
[0007]
[Means for Solving the Problems]
Battery mounting structure for a vehicle according to the present invention is a battery mounting structure for a vehicle battery arranged in the vehicle, the upper Symbol battery vehicle width the tunnel portion both sides of the floor panel extending in a longitudinal direction of a vehicle at the vehicle center are arranged in a direction, to fix the end of the exterior of the battery to the strength member of the vehicle side, in which between the battery cross disposed on both sides are connected by a reinforcing member which straddles the tunnel portion .
[0008]
In one embodiment of the present invention, both end portions of the battery in the vehicle width direction are fixed to a base portion of a pillar disposed in the vehicle vertical direction .
[0009]
In one embodiment of the present invention, the battery disposed in the vehicle width direction is disposed at a position corresponding to the lower side of the seat .
[0010]
[Action and effect of the invention]
According to this inventions, provided in the vehicle width direction above the battery on the floor panel, since the fixed end portions of the exterior of the battery to the strength member of the vehicle side, the strength members of the vehicle side by a battery Can be reinforced.
As a result, there is an effect that the vehicle body rigidity against side collision can be improved without adding a separate cross member to prevent vehicle deformation at the time of side collision, and in addition, the minimum ground clearance of the vehicle is also advantageous. effective.
[0011]
In addition, since the above-described battery is disposed on both sides of the tunnel portion and the batteries disposed on both sides are connected by a reinforcing member straddling the tunnel portion, the strength member on both sides of the vehicle is connected between the battery and the reinforcing member. Are connected in the vehicle width direction, and both of them (battery and reinforcing member) have the same action as the cross member.
Further, the battery can be disposed by effectively using the dead spaces on both the left and right sides of the tunnel portion, and the battery capacity can be increased while effectively using the space in the vehicle interior.
[0012]
According to one embodiment of the present invention, both end portions in the vehicle width direction of the upper mentioned battery, since the fixed base of the pillars arranged in the vertical direction of the vehicle, for preventing falling within pillar battery side collision This is effective as a reinforcing member for preventing the pillar from falling down.
[0013]
According to one embodiment of the present invention, since the above-described battery disposed in the vehicle width direction is disposed at a position corresponding to the lower side of the seat, the battery that also serves as reinforcement of the strength member of the vehicle side portion is provided. , Ie, below the occupant seating position, and as a result, there is an effect that it is possible to improve the occupant protection performance at the time of a side collision.
[0014]
【Example】
An embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a battery mounting structure of a vehicle. In FIG. 1, a cowl panel 1 and a dash upper panel 2 are joined together, and a cowl closed section 3 extending in the vehicle width direction is formed between the two and 1 and 2. .
[0015]
A dash lower panel 5 is joined between the lower portion of the front end of the above-described dash upper panel 2 and the front floor panel 4, and the engine room 6 and the vehicle compartment are partitioned by the dash lower panel 5. A motor unit 7 is mounted.
[0016]
A flat battery storage floor 9 is integrally formed at the rear portion of the front floor panel 4 via a stepped portion 8 that falls downward, and a rear floor panel is provided at the rear portion of the battery storage floor 9 via a kick-up portion 10. 11 is integrally or integrally formed, and a spare tire pan 12 is integrally formed at the rear portion of the rear floor panel 11.
[0017]
As shown in FIG. 2, a tunnel portion 13 extending in the vehicle front-rear direction is integrally formed on the front floor panel 4 and the battery storage floor 9 described above, and the rear of the tunnel portion 13 corresponding to the battery storage floor 9 is formed. The side majority is configured as a low deck portion 13a formed so that the top deck portion is lower than the tunnel portion on the vehicle front side.
[0018]
A cross member 15 is provided on the front floor panel 4 immediately before the stepped portion 8 described above as a strength member on both the left and right sides of the vehicle to connect the side sills 14 in the vehicle width direction.
[0019]
In this embodiment, a recess 15 a corresponding to the tunnel portion 13 is provided in the center of the cross member 15 in the vehicle width direction, and the left and right side sills 14, 14 are connected by a single cross member 15. You may comprise two parts, the cross member which connects a standing wall and the left side sill 14, and the cross member which connects the standing wall on the right side of the tunnel part 13, and the right side sill 14.
[0020]
The above-described side sill 14 is a strength member having a closed cross section 18 extending in the vehicle front-rear direction by joining the side sill inner panel 16 and the side sill outer panel 17 as shown in FIG.
[0021]
By the way, as shown in FIG. 1, a center pillar 21 as a strength member is provided on the side of the vehicle so as to substantially face the seat back 20 of the front seat 19 in the lateral direction.
The center pillar 21 is a strength member disposed in the vertical direction of the vehicle, and has a closed section 24 that extends in the vertical direction of the vehicle by joining the center pillar inner 22 and the center pillar outer 23 as shown in FIG. The center pillar 21 connects the lower side sill 14 and the upper roof side portion in the vertical direction.
[0022]
Batteries 25 and 25 for driving the electric motor are mounted on the upper part of the battery storage floor 9 on both the left and right sides of the tunnel portion 13 described above. The left and right batteries 25, 25 are mounted on the battery storage floor 9 in the vehicle width direction at positions corresponding to the lower side of the front seat 19, and the mounting structure is symmetrical.
[0023]
That is, as shown in FIGS. 3, 4, and 5, a total of four L-shaped brackets 26... Per battery 25 are joined in advance to the front and rear lower portions of the left and right side surfaces of the battery 25, while Stud bolts 27 are erected and fixed in advance on the storage floor 9, bolt insertion holes 26 a (see FIG. 5) of the bracket 26 are attached to the stud bolts 27, and nuts 28 are screwed onto the stud bolts 27. A battery 25 is mounted on the battery storage floor 9.
[0024]
Moreover, as shown in FIGS. 2 and 4, both end portions of the two batteries 25, 25 in the vehicle width direction, that is, the right end portion of the right battery 25 and the left portion of the left battery 25 are respectively the same via brackets 29, 29. It is fixed to the base of the side center pillar 21.
[0025]
As shown in FIG. 5, the bracket 29 described above is formed in a gate shape with a top wall 29a extending in the vehicle width direction and a beam portion 29b that is integrally bent before and after the top wall 29a and extends in the same direction. In addition, a flange portion 29c along the upper surface of the battery 25, a flange portion 29d along the base portion of the center pillar 21, and a continuous flange 29e connecting these flange portions 29c and 29d are integrally formed.
Bolt insertion holes 30 and 30 are formed in the above-described flange portion 29c, while long holes 31 and 31 for bolt insertion are formed in the flange portion 29d.
[0026]
Further, stud bolts 32 are erected and fixed in advance on the upper surface of the battery 25 so as to correspond to the bolt insertion holes 30, and the stud bolts 34 that are implanted in the reinforcement 33 are closed on the base of the center pillar 21. 18 is provided inside the vehicle through the insertion hole 35. Here, the reinforcement 33 described above is pre-joined to the inside of the closed cross section 18 at the base of the center pillar 21, and the stud bolt 34 corresponds to the long hole 31 of the flange 29d.
[0027]
Thus, as shown in FIG. 4, the long hole 31 of the bracket 29 is attached to the stud bolt 34, the bolt insertion hole 30 is attached to the stud bolt 32, and the nuts 36 and 37 are screwed to the stud bolts 32 and 34. As a result, both ends of the batteries 25, 25 in the vehicle width direction are connected and fixed to the base of the center pillar 21.
[0028]
Corresponding to the connecting and fixing portion by the bracket 29 described above, the two batteries 25 and 25 are connected to each other by a reinforcing member 38 straddling the tunnel portion 13 (specifically, the low deck portion 13a).
[0029]
2, 4, and 5, the reinforcing member 38 includes a pipe 39 extending in the vehicle width direction above the low deck portion 13 a of the tunnel portion 13, and joint flanges 40 and 40 at both ends of the pipe 39. Inverted L-shaped brackets 41, 41 connected integrally are provided.
[0030]
As shown in FIG. 5, long holes 42 and 42 for inserting bolts are formed in the bracket 41 described above, while stud bolts 43 are previously formed on the battery 25 and 25 side so as to correspond to the long holes 42 as shown in FIG. 4. , 43 are attached, the long holes 42 of the left and right brackets 41, 41 are attached to the stud bolts 43, and the nuts 44 are screwed into the stud bolts 43, whereby the reinforcing members 38 are connected between the left and right batteries 25, 25. Are interconnected with each other.
[0031]
On the other hand, as shown in FIGS. 2 and 3, at the front portion of the battery 25, the end portions on the inner side of the left and right batteries 25, 25 and the tunnel portion 13 are connected to each other by reinforcing members 45, 45.
[0032]
That is, two reinforcing members 45 and 45 each including a pipe 46, a flange portion 47, and an inverted L-shaped bracket 48 are provided, and the right end portion of the left battery 25 and the tunnel portion 13 are provided as shown in FIGS. The left vertical wall is interconnected by one reinforcing member 45, and the left end portion of the right battery 25 and the right vertical wall of the tunnel portion 13 are interconnected by another one reinforcing member 45.
[0033]
By the way, the upper part of each of the above-described batteries 25 and 25 is covered with a plate 49 stretched substantially horizontally between the upper parts of the cross member 15 and the kick-up part 10 as shown in FIG. In the example, because the front seat 19 is disposed on the plate 49, the brackets 29 and 41 are integrally formed with raised portions 50 and 51 as shown in FIG. A stud bolt 53 for connection is planted, and a mounting hole 54 for connecting the seat rail 52 is formed in the other raised portion 51.
[0034]
Thus, a seat rail 52 (specifically, a bracket for attaching a seat slide rail) of the front seat 19 is attached to each of the above-described raised portions 50 and 51 via a plate 49 as shown in FIG.
[0035]
In FIG. 1, 55 is a front side member, 56, 57, 58 are cross members, 59 is a fuel tank, 60 is a front wheel, 61 is a rear wheel, and the fuel in the fuel tank 59 passes through the engine / motor unit 7. It is supplied when used as an internal combustion engine, and the DC power of the battery 25 is supplied when the engine / motor unit 7 is used as a motor.
[0036]
Thus, according to the battery mounting structure of the vehicle having the above-described configuration, the above-described battery 25 is provided on the floor panel (see the battery storage floor 9) in the vehicle width direction, and the end of the battery 25 outside the vehicle is disposed on the vehicle side. Since it is fixed to the strength member of the part (see the center pillar 21), the strength member (see the center pillar 21) of the vehicle side can be reinforced by the battery 25.
As a result, there is an effect that the vehicle body rigidity against side collision can be improved without adding a separate cross member to prevent vehicle deformation at the time of side collision, and in addition, the minimum ground clearance of the vehicle is also advantageous. There is an effect, and the weight increase by the addition of the cross member is not caused.
[0037]
In addition, the plurality of batteries (two batteries 25 and 25 in this embodiment) are disposed on both sides of the tunnel portion 13, and the batteries 25 and 25 disposed on both sides are reinforced across the tunnel portion 13. Since the members 38 are connected, the strength members (see the center pillar 21) on both sides of the vehicle are connected in the vehicle width direction by the battery 25 and the reinforcing member 38, and both of these (the battery 25 and the reinforcing member 38) are connected to the cross member. The same effect is exhibited.
Further, the battery 25 can be disposed by effectively using the dead spaces on both the left and right sides of the tunnel portion 13, and the battery capacity can be increased while effectively using the space in the vehicle interior. .
[0038]
Further, since both end portions in the vehicle width direction of the plurality of batteries 25, 25 are fixed to the base portion of the pillar (see the center pillar 21) arranged in the vehicle vertical direction, the battery 25 is placed in the pillar at the time of a side collision. Effectively used as a reinforcing member for preventing the fall, the pillar (see the center pillar 21) can be prevented from falling inside.
[0039]
In addition, since the above-described battery 25 disposed in the vehicle width direction is disposed at a position corresponding to the lower side of the seat (see the front seat 19), the vehicle side strength member (see the center pillar 21) is reinforced. The battery 25 is also disposed below the seat (see the front seat 19), that is, below the occupant seating position. As a result, it is possible to improve the occupant protection performance at the time of a side collision.
[0040]
Further, as shown in the embodiment , when the end portion on the vehicle outer side of the battery 25 and the base portion of the center pillar 21 are connected and fixed with the bracket 29 having the beam portion 29b extending in the vehicle width direction, the beam portion 29b is located on the side. Since it opposes a collision load, there exists an effect which can prevent the vehicle deformation | transformation at the time of a side collision much better.
[0041]
6 and 7 show another embodiment of the vehicle battery mounting structure, in which another bracket 62 is used in place of the bracket 29 shown in FIG.
As shown in an enlarged view in FIG. 7, the bracket 62 includes a bottom 63 along the upper surface of the battery 25, a side 64 along the base of the center pillar 21, and a pair of front and rear substantially triangular gussets extending in the vehicle width direction. 65, 65 are integrally formed, and a bolt insertion hole 66 corresponding to the stud bolt 32 is formed in the lower portion 63, while a long hole 67 for bolt insertion corresponding to the stud bolt 34 is formed in the side portion 64. Forming.
[0042]
Even when the bracket 62 shown in FIG. 7 is used instead of the bracket 29 shown in FIG. 5, the gusset portions 65 and 65 counteract the side impact load, so that the vehicle deformation at the time of the side impact can be prevented even better. There is.
In addition, since there exists an effect | action and effect substantially the same as the previous Example about another point, the same code | symbol is attached | subjected to the part same as a previous figure in FIG. 6, and the detailed description is abbreviate | omitted.
[0043]
In the correspondence between the configuration of the present invention and the above-described embodiment,
Vehicle of the invention corresponds to the electric car or hybrid car embodiments,
Similarly,
The floor panel on which the battery is provided corresponds to the battery storage floor 9,
The strength member corresponds to the center pillar 21,
The pillar corresponds to the center pillar 21,
The seat corresponds to the front seat 19,
The present invention is not limited to the configuration of the above-described embodiment.
[0044]
For example, the fixing position of the brackets 29 and 62 for fixing the outer end of the battery 25 to the strength member is set at an intermediate portion between the base portion of the center pillar 21 and the side sill 14, and the center pillar 21 You may comprise so that both deformation | transformation with the side sill 14 may be prevented, and you may comprise so that the above-mentioned brackets 29 and 62 may be fixed to the side sill inner panel 16. FIG.
[0045]
In the above embodiment, the stud bolts 27, 34, 32, 43 are implanted on the elements 9, 21, 25 side, and the brackets 26, 29, 41, or 62 are attached by the nuts 28, 37, 36, 44. Although it is configured, a nut may be joined and fixed to each element 9, 21, 25 side in advance, and the bracket 26, 29, 41 or 62 may be attached with a tightening bolt. Fixing means may be used.
[Brief description of the drawings]
FIG. 1 is a side view showing a battery mounting structure of a vehicle according to the present invention.
FIG. 2 is a perspective view showing the main part of FIG. 1 as seen from above the rear side.
3 is a cross-sectional view taken along line AA in FIG.
4 is a cross-sectional view taken along line BB in FIG.
FIG. 5 is an exploded perspective view of a main part viewed from the rear side.
FIG. 6 is a sectional view showing another embodiment of the vehicle battery mounting structure of the present invention.
FIG. 7 is a perspective view of a bracket.
[Explanation of symbols]
9. Battery storage floor (floor panel)
13 ... Tunnel 19 ... Front seat (seat)
21 ... Center pillar (strength member)
25 ... Battery 38 ... Reinforcing member

Claims (3)

車両にバッテリが配設された車両のバッテリ搭載構造であって、
上記バッテリは車両中央において車両前後方向に延びるトンネル部両側のフロアパネル上に車幅方向に配設され、上記バッテリの車外側の端部を車両側部の強度部材に固定すると共に、両側に配設されたバッテリ相互間が上記トンネル部を跨ぐ補強部材で連結された
車両のバッテリ搭載構造。A vehicle battery mounting structure in which a battery is disposed in the vehicle,
The battery is disposed in the vehicle width direction on floor panels on both sides of the tunnel portion extending in the vehicle front-rear direction in the center of the vehicle, and the battery outer end of the battery is fixed to the vehicle side strength member and disposed on both sides. A battery mounting structure for a vehicle, wherein the installed batteries are connected by a reinforcing member that straddles the tunnel portion . 上記バッテリの車幅方向の両端部は車両上下方向に配設されたピラーの基部に固定されてなる
請求項１記載の車両のバッテリ搭載構造。 The vehicle battery mounting structure according to claim 1 , wherein both ends of the battery in the vehicle width direction are fixed to bases of pillars arranged in the vehicle vertical direction . 車幅方向に配設されたバッテリは、シートの下方に対応した位置に配設された
請求項１または２記載の車両のバッテリ搭載構造。 The battery mounting structure for a vehicle according to claim 1 or 2 , wherein the battery disposed in the vehicle width direction is disposed at a position corresponding to a lower portion of the seat .
JP04246599A 1999-02-22 1999-02-22 Vehicle battery mounting structure Expired - Fee Related JP3817953B2 (en)

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