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    • 59. 发明授权
    • Disk drive device and method of press-fitting with reduced hub deformation
    • 磁盘驱动装置和压配合方法减少轮毂变形
    • US08564901B2
    • 2013-10-22
    • US12616093
    • 2009-11-10
    • Hiroshi SaitoKazuhiro Matsuo
    • Hiroshi SaitoKazuhiro Matsuo
    • G11B17/02
    • G11B17/028
    • In the brushless motor, a hub has a cylindrical separating wall in between a yoke and two magnetic recording disks. The yoke is affixed to the inner surface of the separating wall of the hub using both a press-fit and adhesion. A first convex portion and a second convex portion are formed on the inner surface of the separating wall, and the yoke is pressed against these convex portions in the case where the yoke is press-fit. The first convex portion and the second convex portion are formed in a ring shape around the rotational axis of the motor. The diameter of the first convex portion is less than the diameter of the second convex portion.
    • 在无刷电动机中,毂在磁轭和两个磁记录盘之间具有圆柱形分隔壁。 使用压配合和粘合将轭固定到轮毂的分隔壁的内表面。 在分隔壁的内表面上形成有第一凸起部分和第二凸起部分,并且在压配磁轭的情况下,磁轭被压靠在这些凸部上。 第一凸部和第二凸部围绕电机的旋转轴线形成为环状。 第一凸部的直径小于第二凸部的直径。