Patent ID: 7774921
Filing Date: 2010-08-17
Classification: H02K,Y10T

Abstract:
1. A method of making a motor for use in a horizontal axis washing machine comprising: producing a 4 pole rotor; producing a 36 slot stator having an interior aperture with an interior diameter, said stator having an exterior perimeter with a minimum exterior diameter wherein a ratio of the interior diameter to the minimum exterior diameter is about 0.63:1 or greater; and inserting said 4 pole rotor into said aperture so that said 4 pole rotor is in magnetic coupling relation to the 36 slot stator, wherein the produced stator and produced stator are capable of operating in a flux weakening range of at least 5:1 thereby configuring the motor having reduced materials, reduced temperature of operation at lower speeds, and lower current than a motor having a ratio of an interior diameter to an exterior diameter of less than 0.63:1.