PROBLEM TO BE SOLVED: To provide an in-wheel motor driving device capable of reducing cost, by enhancing efficiency of an electric motor, by reducing agitation resistance of lubricating oil.SOLUTION: An in-wheel motor driving device comprises an electric motor 1, a wheel bearing 5, a reduction gear 2, and a shaft center oil supply mechanism Jk for supplying the lubricating oil to the electric motor 1 and the reduction gear 2, from the inside of a motor rotary shaft 6. The shaft center oil supply mechanism Jk comprises: an oil pump 28 for rotating with the electric motor 1 as a drive source; and a cooling mechanism part 31 for guiding the lubricating oil from the inside of the motor rotary shaft 6 to the outside in the radial direction by the oil pump 28 and injecting the lubricating oil into a coil 78 of a motor stator 9 of the electric motor 1 to cool the coil 78. This cooling mechanism part 31 has oil quantity limiting means 34 in the motor rotary shaft 6, for limiting a lubricating oil quantity injected in a predetermined high rotation region by the electric motor 1.

    【課題】 潤滑油の攪拌抵抗を低減し、電動モータの効率を高めると共に、コスト低減を図ることができるインホイールモータ駆動装置を提供する。【解決手段】 インホイールモータ駆動装置は、電動モータ1と、車輪用軸受5と、減速機2と、潤滑油をモータ回転軸6の内部から電動モータ1および減速機2に供給する軸心給油機構Jkとを備える。軸心給油機構Jkは、電動モータ1を駆動源として回転するオイルポンプ28と、オイルポンプ28により潤滑油をモータ回転軸6の内部から半径方向外方に導き、電動モータ1のモータステータ9のコイル78に射出して冷却する冷却機構部31を有し、この冷却機構部31は、電動モータ1が定められた高回転領域で射出する潤滑油量を制限する油量制限手段34をモータ回転軸6に有する。【選択図】 図1


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    Titel :

    IN-WHEEL MOTOR DRIVING DEVICE


    Weitere Titelangaben:

    インホイールモータ駆動装置


    Beteiligte:
    YAMADA KO (Autor:in) / SUZUKI KENICHI (Autor:in)

    Erscheinungsdatum :

    02.07.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    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



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