Patent ID: 9109610
Filing Date: 2015-08-18
Classification: F04D

Abstract:
1. A radial blower having at least one axial air inlet port and with a radial air outlet port, comprising a housing subassembly and a fan subassembly, the fan subassembly having an electric motor with a stator and a rotor, and a fan wheel, the housing subassembly having at least one holding part, which is arranged in the region of the at least one axial air inlet port and serves for the supporting reception of a carrying part of the fan subassembly, and a housing shell having two shell parts which are connectable releasably to one another and divide the air inlet port and between which the holding part is fastened in the assembled state of the radial blower, the electric motor of the fan subassembly is an electronically commutated direct current motor, the housing subassembly further comprising a terminal box and control electronics arranged in the terminal box for reception of a motor connection line, the terminal box being fastened to an underside of one of the shell parts of the housing subassembly, and the control electronics forming an electronic module having an integrated circuit and having a cooling body projecting into a clearance in the housing shell, to which the terminal box is fastened, the cooling body having a back plate with fins extending therefrom, the cooling body being in direct contact with an airstream inside the blower, sealingly closing the clearance in the housing shell and sealingly separating the control electronics from the airstream, wherein the back plate has a curved shape that is parallel to a curvature of an inner surface of the housing shell facing the fan wheel near the clearance, wherein the stator is encapsulated on all sides by a pour-around material and the rotor has two open end faces.