Patent ID: 7489061
Filing Date: 2009-02-10
Classification: H02K,Y10T

Abstract:
1. A stator for an inner rotor type motor, comprising: a stator core including: four divisional core elements, each of the four divisional core elements being integrally formed by setting up one tooth to one yoke portion, wherein a rotor opening is formed on top portions of the four teeth by arranging the four divisional core elements so that the teeth are radially disposed; and four divisional yoke elements wherein four slots are formed by respectively arranging the four divisional yoke elements between the yoke portions of the adjacent divisional core elements; insulating members respectively provided on side surfaces of the teeth of the stator core; and winding wire wound on each of the teeth of the stator core, wherein each insulating member includes a slot insulating film and an other insulating member, each of the slot insulating films being constructed so tat faults including dropout thereof are prevented by the other insulating member, the faults being prevented by a holding portion of the other insulating member overlapping at least a portion of circumferential edges of the insulating member and 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 while the insulating member is provided on the side surfaces of each of the teeth.