Disk drive motor and disk drive storage device incorporating same
AssigneeHitachi, Ltd.
InventorsYuji Fujita, Asao Nakano, Yasuo Amano, Nobuyuki Ushifusa, Kouki Uefune, Takashi Yamaguchi, Toshiyuki Ajima
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Abstract
A disk drive comprising a rotor, to which a disk and a plurality of magnets are fixed, and an open-slot type integrally molded stator disposed about an outer periphery of the magnets, and wherein the stator comprises coils formed by etching metallic films on teeth. The invention may also be applied to a closed-slot type stator. With either type, it is possible to produce an opening that is equal to or smaller than the thickness of a coil wire and cogging torque is minimized.
Claims3
A disk drive motor comprising a rotor, to which a disk and a plurality of magnets are fixed, and an open-slot type integrally molded stator disposed about an outer periphery of the magnets, and wherein the stator comprises coils formed by etching metallic films on teeth.
A disk drive comprising a rotor, to which a disk and a plurality of magnets are fixed, and a stator provided with coils that are formed by etching metallic films on closed-slot type teeth disposed about an outer periphery of the magnets.
Dependencies are inferred from the claim text.