Abstract: A motor unit includes a motor and a speed reducer. The motor includes a case including a stator housing, a first motor cover, and a second motor cover. A rotor including a rotor shaft, and a stator including a stator core and a stator coil are provided in the case. An oil filter is provided on an outer surface of the first motor cover. When viewed axially along the rotor shaft, at least a portion of a lower half of the oil filter overlaps with an upper half of the stator core. The speed reducer includes an oil reservoir, and is on a side of the first motor cover. At least one oil pump is provided on an outer surface of the speed reducer.

Abstract: A vehicle driving motor unit for an electric vehicle includes a plurality of motor units each including a motor. The motor includes a rotor including a first oil path, a second motor cover including second and third oil paths connected to an outward oil path, and a cover including a fourth oil path between the first and second oil paths, and a fifth oil path between the first and third oil paths. The second and fourth oil paths communicate with each other via a first gasket. The second and third oil paths include, respectively, open ends connected to an exit end of a first pipe and an inlet end of a second pipe. The third and fifth oil paths communicate with each other via a second gasket.

Abstract: A motor unit includes a motor and a speed reducer. The motor includes a case including a stator housing, a first motor cover, and a second motor cover. Outside the stator housing, a first external pipe includes an outward oil path, a second external pipe includes a return oil path, and the first external pipe and the second external pipe are held by the first motor cover and the second motor cover. A rotor is provided inside the case and held by the first motor cover and the second motor cover. A stator core is provided inside the case and fixed to the stator housing by a shrink fit. The speed reducer includes an oil reservoir which communicates with the return oil path.