Patent ID: 6011343
Filing Date: 2000-01-04
Classification: H02K

Abstract:
A rotor of a rotary machine comprising:a shaft;a pair of core members disposed on opposite ends of said rotor, each of said core members having a boss portion fitted to said shaft and a base portion;a plurality of claw poles alternately extending from said base portion of said pair of core members in the axial direction of said rotor, each of said claw poles having tapering trapezoidal outer and inner peripheries and a pair of side surfaces inclined with respect to said axial direction of said of said rotor to form a rectangular parallelepiped space between one of said side surface of one of said claw poles and an opposite one of said side surface of an adjacent one of said claw poles;a cylindrical field coil disposed inside said inner peripheries of said claw poles;a plurality of permanent magnet members each of which is fitted to said rectangular parallelepiped space, at least a portion of said permanent magnet members having a side wall extending from said inner periphery of said claw poles into spaces formed between said inner peripheries of said claw poles and the outer periphery of said field coil over the length of said permanent magnet members to form a one-way axial flow fan having two openings, one of said openings being formed between one end of one of said permanent magnet members and said base portion of one of said core members and the other of said openings being formed between the other end of said one of permanent magnet members and said base portion of the other of said core members; anda mixed-flow cooling fan fixed to an axial end of said pair of core members, wherein each of said permanent magnet members comprises a permanent magnet and a receptacle having a fin-like member.