Abstract: An oil-cooled electric motor for a vehicle including a rotational shaft rotatably supported by a casing, a rotor fixed to the rotational shaft, a stator disposed around the outer circumference of the rotor and fixed to the casing, a coil wound around the stator, and oil receiver and an oil pump mounted in the lower portion of the casing. An oil path is formed in the upper portion of the casing with openings directing oil onto the coil. An oil guide extends from one side of the casing toward the coil. Oil is pumped onto the coil via the oil path by an oil pump.

Abstract: A cooling device for a vehicle motor comprises a rotation shaft rotatably supported by a casing assembly, a rotor fixed to the rotation shaft, a stator disposed around the rotor and fixed to the casing assembly, a coil wound around the stator, an oil pump motor disposed at a lower portion of the casing assembly, an oil passage faced to the coil and formed in an upper portion of the casing assembly, a cooling fin formed on a side wall of the casing assembly, a separator plate being in contact with the cooling fin, an oil passage cover combined with the separator plate to form an oil passage therebetween, and a cooling fin formed on the oil passage cover.