Motor unit

A motor unit comprising:

• an electric motor including:
• a rotor;
• a stator;
• and a housing that internally houses the rotor and the stator, the housing having:
• an upper portion where an oil path where a cooling oil flows and an outlet path where the cooling oil is discharged from the oil path toward the stator are formed;
• and a lower portion having a cooling oil storage unit;
• a reducer including:
• a reducer mechanism including a plurality of gears;
• and a gear case that internally houses the reducer mechanism, and has a lower portion having a cooling oil storage unit communicating with the storage unit in the housing, the reducer having a second end surface on which a first end surface of the electric motor is mounted, and to transmit power from the electric motor at a reduced rotation speed;
• an oil pump that is mounted on a first end surface of the reducer, and to draw up the cooling oil accumulated in the storage unit in the gear case, and to cause the cooling oil to circulate through the oil path in the housing;
• and
• an oil cooler that is mounted on the first end surface of the reducer, has an inlet port which is connected to a cooling oil outlet port of the oil pump, cools the cooling oil from the outlet port of the oil pump, and has an cooling oil outlet port where the cooled cooling oil is discharged into a cooling oil flow path between the cooling oil outlet port and an inlet port of the oil path in the housing.