PROBLEM TO BE SOLVED: To shorten an axial line dimension of an in-wheel motor drive unit, and to suppress that the moment derived from the weight of a motor part acts on the in-wheel motor drive unit.SOLUTION: An in-wheel motor drive unit (11) comprises: a wheel bearing part (11C) including an outer ring (13) in which a space (S) is formed at one end side in an axial line (O) direction, and which has an outside raceway surface (15) at the other end side in the axial line direction, an inner ring (12) having an inside raceway surface (14) at an outside diameter side, and a plurality of rolling bodies (16), a motor part (11A) arranged in the space (S); and a reduction part (11B) including a reduction part input shaft (32) which is connected to the motor part, and penetrates a center hole of an inner ring, an input gear (33) arranged at a tip of the reduction input shaft, intermediate gears (34, 36) driven by the input gear, and an output gear (13g) which is arranged at an outer ring, and driven by the intermediate gears, and transmitting the output rotation of the motor part to the outer ring by decelerating it.SELECTED DRAWING: Figure 1

    【課題】インホイールモータ駆動装置の軸線方向寸法を短縮し、モータ部の重量に由来するモーメントがインホイールモータ駆動装置に作用することを低減する。【解決手段】インホイールモータ駆動装置(11)は、軸線(O)方向一方端側に空間(S)を形成し軸線方向他方端側に外側軌道面(15)を有する外輪(13)、内側軌道面(14)を外径側に有する内輪(12)、および複数の転動体(16)を含む車輪用軸受部(11C)と、空間(S)に配置されるモータ部(11A)と、モータ部と結合して内輪の中心孔を貫通する減速部入力軸(32)、減速部入力軸の先端部に設けられる入力歯車(33)、入力歯車に駆動される中間歯車(34,36)、および外輪に設けられて中間歯車に駆動される出力歯車(13g)を含み、モータ部の出力回転を減速して外輪へ伝達する減速部(11B)とを備える。【選択図】図1


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    Title :

    IN-WHEEL MOTOR DRIVE UNIT


    Additional title:

    インホイールモータ駆動装置


    Contributors:

    Publication date :

    2017-02-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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