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    • 23. 发明授权
    • Method of manufacturing an electric rotating machine
    • 电动旋转机的制造方法
    • US5881446A
    • 1999-03-16
    • US840911
    • 1997-04-18
    • Tsutomu ShigaNobuyuki HayashiMasanori OhmiMasami Niimi
    • Tsutomu ShigaNobuyuki HayashiMasanori OhmiMasami Niimi
    • H02K1/17H02K15/03H02K15/14
    • H02K1/17H02K15/03Y10T29/49009
    • An electric rotating machine and manufacturing method of the same is provided that can securely press-fit magnetic poles against an inner circumference of a yoke with a cylindrical body. By directly contacting a first and second end portions of the cylindrical body and moving the same relatively, the diameter of the cylindrical body widens in the outer radial direction to press-fit the magnetic poles against the inner circumference of the yoke. Thus, the variation of the inner diameter of the magnetic poles that occurs due to the dimensional error in permanent magnet thickness and inner diameter of the yoke is absorbed by the relative movement of the first and second end portions. This stabilizes the fixing force of the magnet, and allows the magnet to be securely fixed to the yoke without excessive stress on the cylindrical body. Furthermore, the displacement of the magnetic poles can be restricted by bending axial ends of the cylindrical body radially outwardly.
    • 提供一种电动旋转机及其制造方法,其可以用圆柱体将磁极牢固地压配在轭的内圆周上。 通过直接接触圆柱体的第一和第二端部并使其相对移动,圆柱体的直径在外径向方向上变宽,以将磁极压配合到轭的内周。 因此,由于永磁体厚度的尺寸误差和轭的内径而产生的磁极的内径的变化被第一和第二端部的相对运动吸收。 这就稳定了磁铁的固定力,并且允许磁体牢固地固定在磁轭上,而不会对圆柱体产生过大的应力。 此外,可以通过径向向外弯曲圆柱体的轴向端部来限制磁极的位移。