Patent ID: 7963025
Filing Date: 2011-06-21
Classification: H02K,Y10T

Abstract:
1. A method of manufacturing a stator for an inner rotor type motor in which winding wire is wound on teeth of a stator core, the stator core being constructed from four divisional core elements and four divisional yoke elements, each of the four divisional core elements being integrally formed by setting up one tooth to one yoke portion, the method comprising the steps of: providing an insulating member on the tooth of each of the four divisional core elements so that an inner surface of an other insulating member of the insulating member disposed on an inner surface of the yoke portion of each of the four divisional core elements is substantially perpendicular to the central axis of the corresponding tooth; circularly fastening the four divisional core elements in a manner that the teeth are arranged substantially radially and in a regular placement that the four teeth are placed at the same positions as or similar positions to the regular dimensions for inside and outside diameters after completion of the stator for the inner rotor type motor, whereby a rotor opening is formed on top portions of the four teeth; winding two-pole A phase winding and two-pole B phase winding on predetermined teeth in series and with concentrated winding; and following the winding step, forming four slots by respectively arranging the four divisional yoke elements between the yoke portions of the adjacent divisional core elements.