Electronically commutated single-phase motor

H - Electricity – 02 – K

Patent

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Details

H02K 29/12 (2006.01) H02K 21/18 (2006.01)

Patent

CA 2514453

The present invention refers to an electronically commutated single~ phase motor comprising a rotor (2; 202; 302) and a stator (3; 203; 303) with an asymmetrical wound yoke (4; 204; 304) and comprising at least a stator phase (5; 205; 305) energized via an electronic commutation circuit in accordance with a driving signal generated by sensor means (8; 208; 308) for detecting the angular position of said rotor (2; 202; 302); said sensor means (8; 208; 308) comprise at least an inductive coil (9; 209; 219; 309) that is coupled magnetically to said rotor (2; 202; 302) and is arranged at substantially 90 electrical degrees with respect to said stator phase (5; 205; 305); the inductive coil (9; 209; 219; 309) and the stator phase (5; 205; 305) are arranged adjacent to each other and are wound round axes that are substantially parallel to each other.

Cette invention a trait à un moteur monophasé à commutation électronique comprenant un rotor (2; 202; 302) et un stator (3; 203; 303) ayant une fourche enroulée asymétrique (4; 204; 304) et comportant au moins une phase de stator (5; 205; 305) excitée par un circuit de commutation électronique en fonction d'un signal de commande produit par un capteur (8; 208; 308) et ce, afin de détecter l'angulation du rotor (2; 202; 302). Ce capteur (8; 208; 308) comporte au moins une bobine à induction (9; 209; 219; 309) couplée par magnétisme au rotor et positionnée à environ 90 degrés par rapport à la phase du stator (5; 205; 305). La bobine à induction (9; 209; 219; 309) et la phase du stator (5; 205; 305) sont contiguës et ont des axes d'enroulement rond quasiment parallèles.

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