Motor, pump and cleaning apparatus
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United States of America Patent
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Aug 20, 2019
Grant Date -
Jun 16, 2016
app pub date -
Dec 10, 2015
filing date -
Dec 11, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A motor, a pump and a cleaning apparatus are provided. The motor includes a stator and a rotor rotatable relative to the stator. The stator includes a stator core and stator windings wound around the stator core. The stator core includes a pair of opposing poles and a yoke connected between the poles. Each pole has a pole arc surface facing the rotor, with an air gap formed between the pole arc surface and the rotor. The pair of poles includes opposing circumferential end portions spaced apart from each other, and a ratio of a distance between the circumferential end portions to a minimum width of the air gap between the pole arc surface and the rotor is less than 2.
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