Drive module for a vehicle

摘要

A drive module for a vehicle has a transmission (12) and an electric machine (11) that is coupled to an input shaft (16) of the transmission (12). An air-filled cavity (23) is formed between the electric machine (11) and the transmission (12). The electric machine (11) is an external-rotor motor with a rotor (24) that surrounds the stator (25). A fan impeller (31) rotates with the rotor (24) and draws air out of the air-filled cavity (23) in an axial direction, draws the air through windings (27) of the stator (25) for cooling, and subsequently conveys the air in the radial direction into a housing-side flow duct (34) in which heated air can be accumulated and via which the air can be returned toward the cavity (23). The heated air can be cooled in the region of the flow duct (34) and/or in the region of the cavity (23).

主权项

1. A drive module for a vehicle, comprising:
a transmission with an input shaft; and an electric machine coupled to the input shaft of the transmission, with an air-filled cavity being formed between the electric machine and the transmission, the electric machine being in the form of an external-rotor motor having a rotor surrounding a stator of said external-rotor motor, at least in sections, a fan impeller rotating together with the rotor and being configured to draw air out of the air-filled cavity in an axial direction and to draw the air through windings of the stator for cooling purposes, and subsequently to convey the air in a radial direction and into a housing-side flow duct in which heated air can be accumulated and via which the air can be returned toward the cavity, wherein the heated air can be cooled in proximity to the flow duct and/or in proximity to the cavity.