MANUFACTURING METHOD OF ROTOR AND ROTOR

摘要

In a method for manufacturing a rotor, each magnetic steel sheet has protrusions on its one surface and has recesses on the other surface at positions corresponding to the protrusions. The plurality of magnetic steel sheets are joined together as the protrusions of each magnetic steel sheet are fitted in the recesses of its adjoining magnetic steel sheet. A shaft member is inserted into a rotor core in the same direction as that in which the protrusions protrude.

主权项

1. A method for manufacturing a rotor including a rotor core having a central hole and a magnet hole that opens to both sides in an axial direction, a shaft member fitted through the central hole of the rotor core, and a magnet placed in the magnet hole, the method comprising:
forming the rotor core by stacking a plurality of magnetic steel sheets in the axial direction; and inserting, after the formation of the rotor core, the shaft member through the central hole of the rotor core with an end face of the rotor core being supported, wherein each of the magnetic steel sheets has a protrusion on its one surface and has a recess on the other surface at a position corresponding to the protrusion, the plurality of magnetic steel sheets are joined together as the protrusion of each magnetic steel sheet is fitted in the recess of its adjoining magnetic steel sheet, and the shaft member is inserted into the rotor core in the same direction as that in which the protrusion protrudes.