H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 21/12 (2006.01) H02K 1/02 (2006.01) H02K 1/14 (2006.01) H02K 1/27 (2006.01) H02K 21/22 (2006.01)
Patent
CA 2483628
A rotary electric motor has a stator with a plurality of axially spaced sets of corresponding stator (3,6) and rotor elements (22,23,24). The stator of each set is an annular ring with poles circumferentially positioned about an axis of rotation. The rotor of each set has a plurality of permanent magnets disposed circumferentially along an annular air gap opposite the stator poles. The permanent magnets of adjacent rotor element sets and/or the poles of adjacent stator sets are offset from each other in the axial direction to cancel the effects of cogging torque produce by each of the sets.
Un moteur électrique rotatif comprend un stator qui comporte une pluralité d'ensembles axialement espacés d'éléments de stator (3,6) et de rotor (22, 23, 24) correspondants. Le stator de chaque ensemble se présente sous la forme d'un anneau dans lequel les pôles se placent tout autour d'un axe de rotation. Le rotor de chaque ensemble comporte un ensemble d'aimants permanents disposés sur le pourtour d'un entrefer annulaire faisant face aux pôles de stator. Les aimants permanents des ensembles d'éléments de stator adjacents et/ou les pôles des ensembles de stator adjacents sont décalés les uns des autres dans la direction axiale pour annuler les effets de couple de crantage produit par chacun desdits ensembles.
Benson Mark A.
Maslov Boris A.
Soghomonian Zareh Salmasi
Matra Manufacturing & Services Sas
Smart & Biggar
Wavecrest Laboratories Llc
LandOfFree
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