| 摘要 |
PROBLEM TO BE SOLVED: To provide the constitution of a rotor advantageous for enhancing the torque of a brushless motor. SOLUTION: In the brushless motor 1 incorporating a rotor 3 having screw grooves 17 formed on the outer circumferential surface 16, a laminated core 20A of the rotor facing a stator 51 has an outer circumferential surface conforming to profiles of the screw grooves 17. COPYRIGHT: (C)2006,JPO&NCIPI
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