STATOR, MOTOR, FAN DEVICE, AND COIL WINDING METHOD

The invention provides a stator, a motor, a fan device and a coil winding method. The stator core can be miniaturized in the axial direction, and the motor can be stably driven. The stator includes: an A-phase coil wound around four of twelve teeth and supplied with an A-phase current; a B-phase coi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WATANABE SHINGO, HOSOI KEIICHI, ITABASHI SATOSHI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides a stator, a motor, a fan device and a coil winding method. The stator core can be miniaturized in the axial direction, and the motor can be stably driven. The stator includes: an A-phase coil wound around four of twelve teeth and supplied with an A-phase current; a B-phase coil wound around the other four teeth of the twelve teeth and to which a B-phase current is supplied; and a C-phase coil wound around the other four of the twelve teeth and supplied with a C-phase current. The A-phase coil includes a spanning portion extending along one of the cylindrical portions in the axial direction between circumferentially spaced teeth. Each of the B-phase coil and the C-phase coil includes a spanning portion extending along the cylindrical portion on the other side in the axial direction between teeth spaced apart in the circumferential direction. The total number of turns of the A-phase coils is two less than the total number of turns of the B-phase coils and the total number of turns of the