Cooling device of a drivetrain for vehicle elecrique

The invention relates to a cooling device of a power train for an electric vehicle, the apparatus comprising an electric motor (4) powered by a battery (7), a power electronics (1) and a system air conditioner comprising a condenser (10) provided with a fan (9), the device being characterized in that it comprises an air duct (12) placed downstream of the condenser (10) and conveying air from the condenser (10) to the electric motor (4), power electronics (1) and / or the battery (7).