Open stator axial flux electric motor

H - Electricity – 02 – K

Patent

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Details

H02K 1/12 (2006.01) H02K 1/18 (2006.01) H02K 3/28 (2006.01) H02K 16/02 (2006.01) H02K 17/12 (2006.01) H02K 17/16 (2006.01)

Patent

CA 2175387

An open stator axial flux electric motor is disclosed. The motor has an open stator having two spaced insulating supports (60, 61) with a slot (62, 63) extending from a periphery of each of the supports (60, 61) to an inner location. A plurality of poles (20-36) extend between the supports(60,61)and are secured to them and the stator has either distributed winding or salient phase pole windings associated with at least some of the poles with an opening between adjacent poles in the regions of the slots (60, 63) in the supports (60, 61). The motor has a rotor (64) with a shaft (69) extending through the slots (62, 63) and at right angles to the supports (60, 61). Two spaced rotor discs are present on the shaft and are located either side of the stator. Each disc (65. 66) is made of a magnetically permeable material and has either an inner face of electrically conducive material (67, 68) or an inner face with conducive paths (74, 75, 76) which function as rotor windings

Moteur électrique à flux axial et à stator ouvert. Ce moteur comprend un stator ouvert présentant deux supports isolants éloignés (60, 61), une fente (62, 63) s'étendant de la périphérie de chacun des supports (60, 61) vers un point interne. Une pluralité de pièces polaires (20-36) s'étendent entre les supports (60, 61), auxquels elles sont fixées. Le stator comprend soit un enroulement réparti, soit des enroulements polaires à phase saillante associés à au moins certaines des pièces polaires, une ouverture étant ménagée entre des pièces adjacentes au voisinage des fentes (62, 63) des supports (60, 61). Ce moteur comprend un rotor (64) doté d'un arbre (69) s'étendant à travers les fentes (62, 63) et perpendiculaire auxdits supports (60, 61). Deux roues mobiles éloignées l'une de l'autre sont présentes sur l'arbre et sont situées de chaque côté du stator. Chaque roue (65, 66) est composée d'un matériau perméable aux champs magnétiques et comporte soit une face interne composée d'un matériau électroconducteur (667, 68), soit une face interne dotée de passages conducteurs (74, 75, 76) agissant comme enroulements de rotor.

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