Outer rotor motor with cooling wheel for cooling stator

The invention relates to an external rotor motor having a stator and a rotor and a cooling wheel for cooling the stator, which cooling wheel can be rotated together with the rotor about an axis of rotation and the stator, the stator has an inner section through which a flow can flow parallel to the axis of rotation and an outer section through which a flow can flow parallel to the axis of rotation, which outer section annularly surrounds the inner section and is fluidically separated from the inner section in the radial direction, the cooling wheel having a plurality of blades, the blades are arranged adjacent to the stator and configured to generate an overpressure at an outer diameter of the cooling wheel adjacent to the outer section and a negative pressure at an inner diameter of the cooling wheel adjacent to the inner section, a directed air flow from the outside of the cooling wheel through the outer section and the inner section to the inner diameter of the cooling wheel can be generated by the cooling