To enhance support rigidity to a rear part of a transmission.SOLUTION: In a lower structure of an electric vehicle in which a battery unit 11a is mounted at a rear side in a vehicle longitudinal direction of a transmission 12 arranged below a floor, and a rear part in a vehicle longitudinal direction of the transmission 12 is supported below the floor, the rear part of the transmission 12 is supported on a mission support member 21 for connecting between tunnel parts upward swelling with a substantially arch-shaped cross section in a center in a vehicle width direction of the floor, and extending in a vehicle longitudinal direction. There are provided on the front and the back, a front side transverse frame 61a and an intermediate transverse frame 61b laterally crossing the tunnel parts and mounted on floor frames 15 outside a vehicle in a vehicle width direction from the tunnel parts. A reinforcement member 17 for connecting between the front side transverse frame 61a and the intermediate transverse frame 61b and arranged at a lower side from the mission support member 21 is provided. The mission support member 21 is supported on the reinforcement member 17.SELECTED DRAWING: Figure 2

    【課題】トランスミッションの後部に対する支持剛性を高める。【解決手段】フロア下方に配設されるトランスミッション12の車両前後方向後方側にバッテリユニット11aが取り付けられ、トランスミッション12の車両前後方向後部をフロア下方に支持する電動車両の下部構造において、フロアの車幅方向中央で横断面略アーチ状に上方に向けて膨出し車両前後方向に延びるトンネル部間を連結するミッション支持部材21にトランスミッション12の後部を支持する。トンネル部を左右に横断するとともにトンネル部より車幅方向における車両外側でフロアフレーム15に取り付けられる前側横フレーム61aと中間横フレーム61bを前後に備え、これら前側横フレーム61aと中間横フレーム61bとの間を連結するとともにミッション支持部材21より下方側に配置される補強部材17を備える。そしてミッション支持部材21を補強部材17に支持する。【選択図】図2


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    Title :

    LOWER STRUCTURE OF ELECTRIC VEHICLE


    Additional title:

    電動車両の下部構造


    Contributors:

    Publication date :

    2021-10-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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