LOW-NOISE INDUCTOR-TYPE RELUCTANCE MOTOR Russian patent published in 2003 - IPC

FIELD: electrical engineering; low-noise electrical machines including motors. SUBSTANCE: motor has frame and stator with salient poles carrying stator windings. intermediate layer of teeth and slots is provided between motor frame and stator core. Novelty is that similar additional layer is provided between motor frame and stator core. Mentioned layers are disposed over stator edges and form annular frame-to-stator gap. Such design of mentioned layers makes it possible to greatly reduce length of stator generatrixes taking lengthwise thrusts on frame with the result that frame-deforming forces causing noise of magnetic origin reduces. EFFECT: reduced noise of magnetic origin. 5 cl, 1 dwg