Patent ID: 8203242
Filing Date: 2012-06-19
Classification: F04D,H02K

Abstract:
1. A commutated DC motor for a liquid pump having a pump housing with a suction connector and a pressure connector for connection to a hydraulic circuit, the DC motor comprising: a motor shaft; an essentially disk-shaped pump rotor mounted to the motor shaft to rotate in the pump housing, the rotor having of an impeller with several pump vanes and a permanent magnet; a plurality of axially aligned stator poles; an axial air gap between the pump rotor and the axially aligned stator poles; a partition separating a pump space from a dry space, the partition being arranged in the axial gap; a plurality of one piece insulation elements having moldings, the insulation elements being provided on each of the poles; first and second receptacles defined in each of the insulation elements; a stator return mated within each first receptacle; a plurality of stator windings each having first and second winding ends, the stator windings being wound on the poles, the first and second winding ends are mechanically fastened to the moldings; and a first circuit board fastened axially and radially to the second receptacles of the insulation elements.