| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotator laminated core which is good in productivity, form accuracy, and product quality, by winding a band-shaped core piece; and a manufacturing method of the same. SOLUTION: A manufacturing method of a rotator laminated core comprises a punching step for forming a plurality of band-shaped core pieces 11 and 12 in which arc-shaped segment core piece portions 15 and 15a equipped with a plurality of magnetic pole piece portions 13, 14, 13a, and 14a projecting outward in a radial direction are respectively coupled by a coupling portions 16 and 16a of narrow width; and an annularly forming step for bending the plurality of the band-shaped core pieces 11 and 12 at the coupling portions 16 and 16a, and winding and laminating the magnetic pole piece portions 13, 14a, 14, and 13a while vertically superimposing them. In the punching step, on the outer side in the radial direction of uniting portions 22 and 22a of the magnetic pole piece portions 13, 14, 13a, and 14a of the segment core piece portions 15 and 15a positioned on upper and lower sides of the coupling portions 16 and 16a bent in the annularly forming step, the bent coupling portions 16a and 16 are positioned. COPYRIGHT: (C)2012,JPO&INPIT |
