To provide a vehicle drive unit capable of adjusting the balance of a flow rate of cooling oil to coil ends on both sides in a good manner.SOLUTION: The vehicle drive unit includes a rotor hub 42, which has a cylindrical portion 42B to which a rotor 20 of a motor is fixed. The cylindrical portion 42B has a plurality of circumferential holes 42Ba which are formed through and introduce lubricating oil. The circumferential holes 42Ba are formed at a position where a first distance d1 to one end of the rotor 20 in an axial direction is shorter than a second distance d2 to the other end of the rotor 20 in the axial direction. The rotor 20 has an axial oil path L1 which communicates with the circumferential hole 42Ba. A first axial oil path L1 has a narrowing portion with a cross-sectional area S1 which is smaller than a cross-sectional area of a second axial oil path, between the circumferential hole 42Ba and a first opening LO1.SELECTED DRAWING: Figure 3


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    車両用駆動装置


    Erscheinungsdatum :

    2024-04-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

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