| 摘要 |
PROBLEM TO BE SOLVED: To use the flux of a ringlike magnet magnetized with multipoles effectively while reducing reluctance on the magnetic circuit and iron loss, and to enhance motor efficiency while reducing vibration by constituting a polyphase motor on one plane. SOLUTION: Magnetic pole plate groups A secured to one end face and magnetic pole plate groups B secured to the other end face are arranged, respectively, on the same planes wherein its arcuate inner circumferential surface is arranged on the same circumference and the pole teeth of the magnetic pole plate groups A and B are arranged in the shape of nest while spaced apart from each other. Each magnetic pole core, the pole teeth and the magnetic pole plate groups A are molded integrally of dust core material while having a coupling part, and the magnetic pole plate groups B are also molded integrally of dust core material while having a coupling part. Motor winding is inserted into the magnetic pole plate groups A and combined with the magnetic pole plate groups B and then it is molded and the parts for coupling respective pole plate groups are cut. COPYRIGHT: (C)2008,JPO&INPIT
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