| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor core that can prevent rattlings and the scattering of magnets that constitute a rotor, even if there are applied to the rotor core a centrifugal force accompanied by the high-speed operation of a motor and a centrifugal force that frequently varies, in conjunction with a variable speed operation, and which is inexpensive in terms of cost, and further is improved in anti-corrosion properties, and to provide a rotor. SOLUTION: The rotor core is constituted such that the rotor core is composed of one cylindrical solid metal body, having a shaft hole 2A on a central axis and has a magnet attachment part that accommodates and holds the magnets 3 at the external peripheral region of the cylindrical solid metal body; the accommodation width of the magnet attachment part is narrowed as going toward the radial outward direction of the cylindrical solid metal body; and the movement of the magnet to the radial outward direction of the cylindrical solid metal body is suppressed. Furthermore, a rust-proof coating is applied to the surface of the cylindrical solid metal body that constitutes the rotor core. COPYRIGHT: (C)2006,JPO&NCIPI
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