PERMANENT MAGNET SYNCHRONOUS MOTOR

摘要

PROBLEM TO BE SOLVED: To reduce assembly time and improve productivity by enabling easy insertion easy because insertion requires much time since a gap is small when a permanent magnet is inserted in a permanent magnet burying hole, in a permanent magnet buried rotor of a permanent magnet synchronous motor. SOLUTION: A rotor core is formed by laminating rotor iron plates A having a plurality of permanent magnet holes, and laminating one or a plurality of rotor iron plates B having permanent magnet insertion guide holes wider than the permanent magnet holes, on the single side end surface of the laminated rotor iron plates A. As a result, the permanent magnet can be easily inserted so that the assembly time is reduced and the productivity can be improved.