To output further larger torque to an output shaft of a transmission from an electric motor while suppressing the size enlargement and a weight increase of a device as a whole, in a power transmission device including a reduction gear for amplifying torque from the electric motor, and transmitting it to an end part of the output shaft of the transmission.SOLUTION: A power transmission device of the present disclosure includes a transmission, a power transmission member connected to an end part of an output shaft of the transmission, an electric motor arranged between the transmission and the power transmission member, a reduction gear for amplifying torque from the electric motor, and transmitting it to the output shaft, and a case. The reduction gear includes an input element connected to the electric motor, a fixing element fixed to the case, and an output element connected to the end part of the output shaft between the electric motor and the power transmission member. The output element supports the input element from the inside in a radial direction, and is rotatably supported by the case via a bearing disposed outside in the radial direction, and the end part of the output shaft to which the output element and the power transmission member are connected has a constant outside diameter.SELECTED DRAWING: Figure 1

    【課題】電動機からのトルクを増幅して変速機の出力軸の端部に伝達する減速機を含む動力伝達装置において、装置全体の大型化や重量増を抑制しつつ、より大きなトルクを電動機から変速機の出力軸に出力可能にする。【解決手段】本開示の動力伝達装置は、変速機と、変速機の出力軸の端部に連結される動力伝達部材と、変速機と動力伝達部材との間に配置される電動機と、電動機からのトルクを増幅して出力軸に伝達する減速機と、ケースとを含み、減速機は、電動機に連結される入力要素と、ケースに固定される固定要素と、電動機と動力伝達部材との間で出力軸の端部に連結される出力要素とを含み、出力要素は、入力要素を径方向内側から支持すると共に、径方向外側に配置される軸受を介してケースにより回転自在に支持され、出力要素および動力伝達部材が連結される出力軸の端部は、一定の外径を有する。【選択図】図1


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    Titel :

    POWER TRANSMISSION DEVICE


    Weitere Titelangaben:

    動力伝達装置


    Beteiligte:
    NAKAMURA AKIRA (Autor:in) / OMURA KATSUYA (Autor:in) / KOJIMA KAZUTAKA (Autor:in) / KARIYA MASAHIRO (Autor:in) / NAMBA AKIHIRO (Autor:in) / IKEDA MANABU (Autor:in) / YAMATO FUMIAKI (Autor:in) / HONDA AKIHIRO (Autor:in)

    Erscheinungsdatum :

    2023-10-05


    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 / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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