ARMATURE FOR DYNAMO ELECTRIC MACHINE AND METHOD OF MANUFACTURING SAME

摘要

Provided is an armature for dynamo electric machine wherein the eddy current loss can be reduced while enhancing the space factor of coil.  An armature (2) for dynamo electric machine including a cylindrical core (11) where a plurality of slots (12) extending in the axial direction are positioned in a dispersion manner in the circumferential direction, and a coil (21) wound in the slots (12) each of which is formed in such a manner that the circumferential width of the inner circumferential opening of the slot (12) is narrower than the inner circumferential width of the slot, the circumferential width of a linear conductor constituting the coil is wider than the circumferential width of the inner circumferential opening, the coil end (23) of the coil (21) on one side in the axial direction thereof is a bent coil end (24) which is bent radially inward and provided with a radial conductor (25), and at a radial position in the radial conductor (25) corresponding to the inner circumferential opening, a narrow recess (32) which is recessed for other portion of the radial conductor (25) is provided so that the circumferential width becomes narrower than that of the inner circumferential opening.