Stator of dynamo-electric machine.

摘要

A stator of a dynamo-electric machine includes core pieces (11) obtained by laminating iron plates divided in a circumferential direction per pole-tooth unit and having projecting and recessed engaging parts (14a,14b) at their dividing faces (13), and then welding the iron plates by laser at their inner and outer peripheries, and a winding part (16) formed around each pole-tooth unit of the core pieces, wherein a predetermined number of the core pieces are bonded into a shape of a loop with the projecting and recessed engaging parts engaged with each other and rigidly welded in outer peripheries of bonding faces by laser in a laminating direction.