Electric motor designed to allow better removal of the heat generated while it is in operation

Abstract

The invention relates to an electric motor () comprising a rotor () mounted on a shaft (), a stator () arranged around the motor (), a front bearing () and a rear bearing () which are connected to one another, the front and rear bearings () forming an internal cavity in which the rotor () and the stator () are housed, the electric motor () being cooled by a coolant circulating in the internal cavity in contact with winding overhangs () extending axially beyond two end faces () of the stator (), these respectively being the front end face () and a rear end face (), the coolant entering the internal cavity via at least one fluid inlet duct () and exiting the internal cavity via at least one fluid outlet duct (), characterized in that the motor () further comprises two end plates (), these respectively being a front end plate () and a rear end plate (), of annular shape and having a U-shaped cross section, the front end plate () and the rear end plate () respectively covering the winding overhangs () protruding beyond, respectively, the front end face () and rear end face () of the stator () and being configured to form, respectively, a front circulation tunnel and the rear circulation tunnel for the coolant, the front and rear circulation tunnels being in fluidic communication with the at least one fluid inlet duct () and the at least one fluid outlet duct (), and in that each of the end plates () is fixed, preferably detachably, to the stator () by means of at least two assembly tabs () which are formed so that they project radially from an internal peripheral face of each of the end plates (), each of the assembly tabs () being configured to be inserted into an intermediary space between two adjacent winding overhangs ().