发明名称 Low noise synchronous motors
摘要 Longitudinally extending radially-projecting and peripherally-spaced teeth on a stator member and rotor member of a synchronous electric motor, whose rotor member is magnetized by a permanent magnet, are skewed relative to each other. The overall peripheral distance of each tooth on one member is equal to or less than the space between the overall peripheral distances of the teeth on the other member. According to one embodiment the rotor teeth are skewed relative to the rotor axis and the stator teeth parallel thereto.
申请公布号 US4025810(A) 申请公布日期 1977.05.24
申请号 US19750609073 申请日期 1975.08.29
申请人 SIGMA INSTRUMENTS, INC. 发明人 FIELD, JOHN H.
分类号 H02K21/20;(IPC1-7):H02K19/00 主分类号 H02K21/20
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