MOTOR

To provide a motor with high torque and high efficiency.SOLUTION: A rotor that is rotatable about a central axis as a rotation axis and a stator located on one axial side of the rotor are provided. The rotor has a plurality of side magnets 41 arranged in a circumferential direction as a magnetizatio...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WANG KUO-MIN, YAN GUO-JHIH, WU SHENG-TSE, LIN HSIU-YING, WU KENGANG
Format: Patent
Sprache:eng ; jpn
Schlagworte:
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Beschreibung
Zusammenfassung:To provide a motor with high torque and high efficiency.SOLUTION: A rotor that is rotatable about a central axis as a rotation axis and a stator located on one axial side of the rotor are provided. The rotor has a plurality of side magnets 41 arranged in a circumferential direction as a magnetization direction and a plurality of core pieces 20 located between the side magnets in the circumferential direction. The core piece has a core piece main body 21 that is in close contact with the side surface 41a of the side magnet on a pair of side surfaces 21a facing both circumferential sides and an extended teeth portion 22 located on one axial side of the core piece main body. The extended teeth portion protrudes to one axial side from the surface facing one axial side of the side magnet and has a larger circumferential width dimension than the core piece main body.SELECTED DRAWING: Figure 3 【課題】高トルク、かつ高効率のモータを提供する。【解決手段】中心軸線を回転軸として回転可能なロータと、ロータの軸方向一方側に位置するステータと、を備える。ロータは、周方向を磁化方向とし周方向に並ぶ複数のサイドマグネット41と、周方向においてサイドマグネットの間に配置される複数のコアピース20と、を有する。コアピースは、周方向両側を向く一対の側面21aでサイドマグネットの側面41aと密着するコアピース本体部21と、コアピース本体部の軸方向一方側に位置する拡張ティース部22と、を有する。拡張ティース部は、サイドマグネットの軸方向一方側を向く面に対し軸方向一方側に突出し、コアピース本体部よりも周方向の幅寸法が大きい。【選択図】図3