Electric motor

An electric motor comprising:

• a stator including a stator core and a coil, the stator core including a yoke extending in an axial direction along a rotational axis and annularly surrounding the rotational axis, a plurality of teeth located on an inner periphery of the yoke and spaced apart at intervals in a circumferential direction around the rotational axis, and a plurality of slots between adjoining teeth, each of the plurality of slots including a coil housing that houses the coil and a slot opening that opens the coil housing radially inward, the coil including a coil end that protrudes in the axial direction from an axial end surface of the stator core;
• a rotor spaced radially inward from the stator by an air gap and rotatable around the rotational axis;
• a plastic portion including a blocking portion which extends in the axial direction so as to block the slot opening, and a cylindrical wall which is coupled to the blocking portion, protrudes farther in the axial direction than the axial end surface of the stator core, and is concentric with the stator core, the plastic portion being integral with the stator core;
• a housing to house the stator and the rotor, the housing defining a coil end cooling channel at a location radially outward from the cylindrical wall and in which a cooling liquid flows to cool the coil end.