Patent ID: 7120985
Filing Date: 2006-10-17
Classification: H01F,H02K,Y10T

Abstract:
1. A method of manufacturing a layered core having a central axis, an annular ring yoke, and a plurality of magnetic poles projecting radially inwardly from the annular ring yoke toward the central axis, the method comprising the steps of: arranging a first plurality of yoke parts so as to define a first configuration magnetic pole sheet layer having first and second oppositely facing sides; arranging a second plurality of yoke parts so as to define a second configuration magnetic pole sheet layer having third and fourth oppositely facing sides; stacking the first plurality of yoke parts and second plurality of yoke parts, one upon the other, so that the second side of the first configuration magnetic pole sheet layer is placed against the third side of the second configuration magnetic pole sheet layer; providing a circumferentially opening first female connector on a first yoke part in the first plurality of yoke parts on the first configuration magnetic pole sheet layer; providing a first male connector on a second yoke part in the second plurality of yoke parts on the second configuration magnetic pole sheet layer; and directing the first male connector into the first female connector so that the first male connector is pivotable relative to the first yoke part around an axis that is substantially parallel to the central axis.