Electric propulsion assembly for an aircraft

An electric propulsion assembly for an aircraft comprising:

• a nacelle comprising a nacelle cowl delimiting an internal volume to place an electric propulsion unit of the aircraft comprising a fan, an electric motor assembly connected to the electric propulsion unit to supply an electrical energy to the propulsion unit and a control system comprising a power electronics system, a space delimited between the motor assembly and the nacelle cowl defining a duct through which an air stream generated by the fan flows to supply the aircraft with a thrust;
• the power electronics system comprises at least one heat exchanger to transfer a heat energy from the power electronics system to a working fluid to cool the power electronics system;
• and
• said at least one exchanger is positioned to at least partially project inwardly from the nacelle cowl into the space delimited between the motor assembly and the nacelle cowl so that the working fluid consists of the air stream generated by the fan.