| 摘要 |
PROBLEM TO BE SOLVED: To provide single-piece stator cores and single-piece rotor cores with substantially equal strength and reduce odd pieces of material produced when thin plates for stator core and thin plates for rotor core are simultaneously stamped out from one thin plate for cost reduction. SOLUTION: Thin plates 2a are laminated to form single-piece rotor cores 2A and 2C. Thin plates 2b' are laminated to form eight split cores 2B'. The split cores 2B' are sandwiched between the single-piece rotor cores 2A and 2C to form a split rotor core 2B. Thus, an integrated rotor core 2 is obtained as a whole.
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