Disk drive having a top cover channel vented to a central cavity via a peripheral clearance gap

摘要

A disk drive has a disk drive base with a central cavity surrounded by a peripheral wall that has a peripheral top face. The disk drive has a top cover with an outer periphery spaced from the peripheral wall by a peripheral clearance gap. A foil seal is adhered to a central top face of the top cover and the peripheral top face of the peripheral wall, and spans the peripheral clearance gap. The top cover includes a first channel that is depressed relative to the central top face. The foil seal covers the first channel, and the first channel is vented to the central cavity by a venting channel that connects the first channel to the peripheral clearance gap.

主权项

1. A disk drive comprising:
a disk drive base comprising a central cavity surrounded by a peripheral wall, the peripheral wall including a peripheral top face; and a top cover attached to the disk drive base and disposed over the central cavity to define a disk drive enclosure, the top cover having a central top face that defines a central top face plane, an outer periphery of the top cover being spaced from the peripheral wall of the disk drive base by a peripheral clearance gap; a disk rotatably attached to the disk drive base within the central cavity and disposed within the disk drive enclosure; and a foil seal adhered to the central top face and the peripheral top face, and spanning the peripheral clearance gap; wherein the central top face of the top cover includes a first channel that is depressed towards the disk relative to the central top face plane, wherein the foil seal covers the first channel, and wherein the first channel is vented to the central cavity by a venting channel that connects the first channel to the peripheral clearance gap.