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    LAMINATED IRON CORE AND PRODUCTION OF THE SAME
    1.
    发明公开
    LAMINATED IRON CORE AND PRODUCTION OF THE SAME 有权
    积铁芯及生产

    公开(公告)号：EP2144348A1

    公开(公告)日：2010-01-13

    申请号：EP07742662.5

    申请日：2007-04-27

    申请人： Mitsui High-Tec, Inc.

    发明人： NAGAI, Akira ,  MYOJIN, Iwao ,  HOSHINO, Akinori ,  SAKUMA, Masafumi ,  YAMAMOTO, Hiroyuki ,  SUZUKI, Haruji

    IPC分类号： H02K1/18

    CPC分类号： H02K15/022 ,  H02K15/026 ,  Y10T29/49009

    摘要： A laminated core (10) and a method for manufacturing the same formed with multiple continuous segment core pieces (13) wound in a spiral form by bending connecting portions (12) mutually connecting the segment core pieces (13), the connecting portions (12) being formed in an outer peripheral area (11), while the connecting portions (12) of vertically adjacent layers being displaced in a circumferential direction with inner circumferential portions or outer circumferential portions of the segment core pieces (13) fitted to each other, the laminated core comprising: a concave cutout (21) provided in a radial exterior of each connecting portion (12) to dispose a radially expanded portion (20) within an outer circle of the laminated core (10), the radially expanded portion (20) being formed with each connecting portion (12) expanded radially outward at the time of bending each connecting portion (12); an interior cutout (22) provided in a radial interior of each connecting portion (12) to define a bending position of each connecting portion (12); and a receptacle (16) provided in a radial exterior of each segment core piece (13) to receive an expanded part (15) of the thickness direction formed in the thickness direction at the time of bending each connecting portion (12).