Method for accomodating an electric motor

A device (10) with an accommodated electric motor (30), in particular a blower motor for a heating and air conditioning system, having a substantially cup-shaped accommodating housing (12), serving as a motor housing, with an accommodation opening (32) into which the pole housing (46) of an electric motor (30) is insertable protruding at least partway into it, and having a retaining flange (14), located on the accommodating housing (12), for securing the motor housing (12) to a support element, and having a control and regulating unit (20), located on the retaining flange (14), for operating an electric motor (30), wherein the accommodating housing (12) has at least one flat region (36, 40) in the circumferential direction, which deviates from a circular shape and corresponds with at least one flat face (54) of an outer contour of the control and regulating unit (20), wherein the electric motor has at least two permanent magnet poles (44) and a pole housing (46) embodied as a magnetic short-circuit ring, wherein the pole housing (46) has at least one flat face (55) of its circumference, which corresponds with the flat region (36, 40) of the accommodating housing (12) of the device, wherein the flat faces (36, 40, 55) of the accommodating housing (12) and of the pole housing (46) extend substantially parallel to one another, and wherein the at least one flat face (55) of the pole housing (46) of the electric motor (30) is formed by a plane circumferential region of the pole housing (46) that extends between the ends, facing toward one another, of two permanent magnet poles (44), wherein at least one cooling body (24) is associated with the control and regulating unit (20), and an outer boundary of the cooling body (24) extends substantially parallel to the flat face (36, 40) on the circumference of the accommodating housing (12), and wherein the control and regulating unit (20) extends through the retaining flange (14) in such a way that the cooling body (24) protrudes with its structured cooling body surface (25) out of a top side (26) of the retaining flange (14).