Moving magnet voice coil motor using Halbach arrays
AssigneeSeagate Technology LLC
InventorPradeep Kumar Subrahmanyan
Life of this patent
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Abstract
An information handling system includes a base, a disc rotatably attached to the base, and an actuator assembly movably attached to the base the actuator assembly. An actuator assembly has an opening at the pivot therein. An actuator arm attached to the main body, and a voice coil motor is positioned within the opening of the actuator assembly. The voice coil motor also includes at least two magnets attached to the main body of the actuator arm. The magnets are arranged as a Halbach array. The voice coil motor is positioned within the opening of the actuator assembly, and near one end of the actuator assembly and at least one load spring and transducer are positioned at the other end of the actuator assembly.
Claims19
An actuator assembly for an information handling system comprising:
- a stationary shaft;
- a main body having an opening therein positioned around the shaft such that the main body is rotatable about the shaft;
- at least one actuator arm attached to the main body;
- and
- a voice coil motor comprising at least two magnets, the magnets being supported by the main body within the opening.
An information handling system comprising:
- a base;
- a yoke attached to the base;
- a coil attached to the yoke;
- a storage medium attached to the base;
- and
- an actuator assembly having an opening therein, the yoke being positioned within the opening, the actuator assembly further including at least two magnets positioned near the opening, the magnets and coil forming a voice cod motor, the actuator assembly capable of swinging through an arc and rotatably attached to the base about the yoke.
Dependencies are inferred from the claim text.