To provide a power transmission unit for an electric vehicle for driving left and right wheels with one electric motor which enables a case for housing an axle and a gear mechanism to be molded by casting and achieves downsizing.SOLUTION: A power transmission unit 41 includes: a motor case 50 that is provided on the same side as a second axle 19 with respect to a center between a first axle 18 and the second axle 19, separated to right and left, in a right-left direction and that houses an electric motor 70; a first axle case 43 housing a reduction gear mechanism 78, a differential gear mechanism 118, and the first axle 18; and a second axle case 130 that is fixed to the first axle case 43 in a separable manner and houses the second axle 19.SELECTED DRAWING: Figure 3

    【課題】1つの電動モータで左右車輪を駆動するための電動車両用動力伝達ユニットにおいて、車軸及び歯車機構を収容するケースを鋳造で成形することを可能としながら、小型化を図る。【解決手段】動力伝達ユニット41は、左右に分かれた第1車軸18及び第2車軸19間の中央に関して、左右方向について第2車軸19と同じ側に配置され、電動モータ70が収容されたモータケース50と、減速歯車機構78及び差動歯車機構118と第1車軸18とが収容された第1車軸ケース43と、第1車軸ケース43に対して分離自在に固定され、第2車軸19が収容された第2車軸ケース130とを含む。【選択図】図3


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    Title :

    POWER TRANSMISSION UNIT FOR ELECTRIC VEHICLE


    Additional title:

    電動車両用動力伝達ユニット


    Contributors:

    Publication date :

    2023-10-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F16H Getriebe , GEARING



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