| 摘要 |
PROBLEM TO BE SOLVED: To provide a core and its assembling method with which wastefulness of many materials is avoided, and the manufacturing cost of the core is reduced. SOLUTION: The assembling method of the core for a rotary electric machine, such as a motor and a generator includes a step of forming coil slots along one side of the outer periphery or an inner periphery of core plates, welding recesses along the other side and positioning through-holes provided at end faces; a step of forming laminated units of predetermined thicknesses, after superimposing a plurality of the arch type core plates; a step of forming annular members with each laminated unit; a step of superimposing at least three-layered annular members so that butt-welded portions between the adjoining laminated units of one annular member is dislocated only at a certain angle from the butt-welded portions, between the laminated units of another annular member; and a step of surely fastening a plurality of the annular members to each other, after inserting fastening bolts into the through-holes adjusted vertically in a plurality of the annular members. COPYRIGHT: (C)2007,JPO&INPIT |
