LAMINATED IRON CORE AND MANUFACTURING METHOD FOR LAMINATED IRON CORE

摘要

There is provided a laminated iron core including a plurality of piled iron core pieces, each piled iron core pieces being blanked from at least two piled sheet materials and sequentially laminated on other piled iron core pieces, wherein the piled iron core pieces adjacent in a direction of lamination are interlocked together by a plurality of caulking parts provided in each piled iron core pieces. Each of the plurality of caulking parts includes a caulking protrusion formed in one side and a caulking fitting groove formed in the other side to which the caulking protrusion is fitted, and the caulking protrusion is allowed to protrude to the caulking fitting groove of the piled iron core pieces adjacent thereto in the direction of lamination, and a width of the caulking protrusion is larger than an inner width of the caulking fitting groove.

主权项

1. A laminated iron core comprising:
a plurality of piled iron core pieces, each piled iron core pieces being blanked from at least two piled sheet materials and sequentially laminated on other piled iron core pieces, wherein the piled iron core pieces adjacent in a direction of lamination are interlocked together by a plurality of caulking parts provided in each piled iron core pieces, wherein each of the plurality of caulking parts includes a caulking protrusion formed in one side and a caulking fitting groove formed in the other side to which the caulking protrusion is fitted, and the caulking protrusion is allowed to protrude to the caulking fitting groove of the piled iron core pieces adjacent thereto in the direction of lamination, and a width of the caulking protrusion is larger than an inner width of the caulking fitting groove.