Patent ID: 7900339

Claim:
A manufacturing method of a motor having an armature arranged concentrically with a central axis of the motor, the method comprising the steps of: a) arranging an insulating spacer at a first axial end of an armature core of the armature, wherein the armature includes the armature core including a plurality of teeth each extending substantially perpendicularly to the central axis and spaced evenly apart from one another in a circumferential direction, a core back having a substantially annular shape connecting the teeth, and a plurality of slots each defined by an inner peripheral surface of the core back and a pair of opposing surfaces of adjacent teeth; a plurality of substantially U-shaped conductors including a pair of linear portions substantially parallel with one another and inserted into corresponding ones of the plurality of slots; and a connecting portion covering an end surface of the armature core and connecting corresponding linear portions; wherein the insulating spacer is arranged at the first axial end of the armature core and includes a conductor supporting portion arranged to support the connecting portion; b) inserting the plurality of U-shaped conductors into corresponding ones of the plurality of slots; c) arranging the connecting portions of the plurality of substantially U-shaped conductors at the conductor supporting portion of the insulating spacer; d) bending a connecting portion of an inner one of the substantially U-shaped conductors radially inward of the linear portions of the inner one of the substantially U-shaped conductors; and e) bending a connecting portion of an outer one of the substantially U-shaped conductors radially outward of the linear portions of the outer one of the substantially U-shaped conductors; wherein the insulating spacer includes an inner spacer arranged radially inwardly of the teeth, and an outer spacer arranged radially outwardly of the inner spacer; the plurality of substantially U-shaped conductors are arranged at the conductor supporting portion of the inner spacer and the conductor supporting portion of the outer spacer; and step d) and step e) are carried out prior to step b).