Axially compact direct drive for storage disk hub
AssigneePapst Licensing GmbH & Co. KG
InventorsUwe Muller, Michael Hermann
Life of this patent
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Abstract
An axial compact direct drive for a storage disk comprises a stator, a rotor carrying a hub for receiving storage disks and a bearing arrangement. The bearing arrangement is disposed at a radially external edge of the hub to rotatably support the hub against axial and radial movement. The rotor is electrically driven at locations in the center of the stator or at locations surrounding the stator.
Claims15
A storage disk drive, especially for a hard storage disk, comprising a stator, a rotor, a bearing arrangement (10, 12;
- 18, 19) and a coaxial hub (5, 7) having a radially external edge, to the outer surface of which one or more hard disks are secured, characterised in that the bearing arrangement rotatably supports the hub (5, 7) exclusively in the region of the radially external edge of the hub.
A disk drive according to any one of the preceding claims, characterised in that a ventilation device is provided, consisting of an inlet opening (71) and an outlet opening (72), the openings (71) and (72) being provided with filter inserts.
A disk drive according to any one of the preceding claims, characterised in that an exchangeable stator part (1) is provided for subsequent mounting in the storage disk drive.
A storage disk drive, especially for a hard storage disk, comprising a stator, a rotor, a bearing arrangement (10, 12;
- 18, 19) and a coaxial hub (5, 7) having a radially external edge, to the outer surface of which one or more hard disks are secured, characterised in that the bearing arrangement comprises a bearing disposed in the region of the radially external edge of the hub which rotatably supports the hub against axial and radial movement.
Dependencies are inferred from the claim text.