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    • 3. 发明授权
    • System for securing permanent magnets
    • 永久磁铁固定系统
    • US08421303B2
    • 2013-04-16
    • US11409442
    • 2006-04-21
    • Francesc Cruellas AlvarezIvan Flotats Giralt
    • Francesc Cruellas AlvarezIvan Flotats Giralt
    • H02K1/22H02K3/48
    • H02K1/2793H02K21/24
    • The present invention relates to an alternating-current-synchronous-servomotor having a disk-shaped rotor (55, 56) which is located between two stator halves. The rotor comprises an even number of flat permanent magnets pieces (56) having magnet field lines extending parallel to the shaft of the rotor. The permanent magnet pieces (56) form an annular like series including interstices extending around a hub (55) supported on the shaft. The magnet pieces are made of a magnetically non-conductive material and have flat sides acting as magnetic pole surfaces (N, S) which extend in parallel planes to which the axis of the shaft extend perpendicularly. The permanent magnet pieces (56) have limiting surfaces located radially inwards, which are supported each on one of peripheral planes of the hub (55). Said peripheral planes and said limiting surfaces comprise cooperating means (57, 58, 59, 60) for fixing said magnet pieces (54) on said hub (55).
    • 本发明涉及具有位于两个定子半部之间的盘形转子(55,56)的交流同步伺服电动机。 转子包括偶数个具有平行于转子的轴延伸的磁场线的扁平永磁体片(56)。 永久磁铁片(56)形成一环形系列,包括围绕支撑在轴上的轮毂(55)延伸的间隙。 磁片由磁性不导电材料制成,并且具有作为磁极表面(N,S)的平坦侧面,其平行于轴的轴线垂直延伸的平面。 永磁体片(56)具有径向向内定位的限制表面,每个限制表面被支撑在轮毂(55)的一个外围平面上。 所述外围平面和所述限制表面包括用于将所述磁体片(54)固定在所述轮毂(55)上的配合装置(57,58,59,60)。