Western Digital Technologies, Inc.

Jen-Tai Lin

Lin Yang

Jin Hui Ou-Yang

Chiao-Ping (Roger) Ku

Michael G Choy

Gary C Griffin

Shuo-Hao Chen

Robert J McNab

Gary C Griffen

Jacky S Wong

There is provided a disk drive including a disk drive base, a disk rotatably coupled to the disk drive base, and a spindle motor attached to the disk drive base and configured to support the disk for rotating the disk with respect to the disk drive base. The disk drive further includes a filter component. The filter component includes a filter housing coupled to the disk drive base, and a filter element disposed within the filter housing for filtering disk rotation induced airflow. The filter element includes a coarse section and a fine section. The coarse section has a porosity greater than a porosity of the fine section.

Disk drive including a filter component with coarse and fine sections

A disk drive baseplate includes a raised major surface oriented essentially parallel to the disk, a recessed major surface, and a boundary contour between the raised major surface and the recessed major surface. In one embodiment, the baseplate further includes an air channel adjacent to and at least partially outboard of the raised major surface, wherein the air channel includes the recessed major surface.

Disk drive with air channel

There is provided a disk drive including a disk drive base, a disk rotatably coupled to the disk drive base, and a spindle motor attached to the disk drive base and configured to support the disk for rotating the disk with respect to the disk drive base. The disk drive further includes a filter component. The filter component includes a filter housing coupled to the disk drive base, and a pair of filter elements disposed within the filter housing for filtering disk rotation induced airflow. Each filter element includes a coarse section and a fine section, wherein the coarse section is positioned upstream of the fine section relative to a direction of the induced airflow.

A disk drive includes a disk drive base, a disk, and a head stack assembly rotatably coupled to the base adjacent the disk surface of the disk. The disk drive includes an airflow channeling enclosure. The enclosure includes an airflow inlet disposed downstream of the head stack assembly and configured to receive the disk rotation induced airflow therethrough. The enclosure further includes an airflow channel extending along the disk surface from the airflow inlet. The enclosure further includes an outer wall extending along the disk surface from the airflow inlet and defining the airflow channel radially interior to the outer wall. The enclosure further includes an airflow outlet disposed upstream of the head stack assembly extending from the outer wall and the channel opposite the airflow inlet for modifying the disk rotation induced airflow passing from the channel.

Disk drive with airflow channeling enclosure

A disk drive including a disk drive base, a disk coupled to the disk drive base, and a head stack assembly coupled to the disk drive base. The disk drive further includes an airflow diverter filter component disposed upstream of the head stack assembly with respect to disk rotation induced airflow for modifying the disk rotation induced airflow adjacent the head stack assembly. The filter component includes a first filter element disposed adjacent the disk surface, a second filter element disposed between the first filter element and the head stack assembly, and a third filter element having a porosity finer than the first and second filter elements. The third filter element is generally radially further than the second filter element from the axis of rotation. The disk rotation induced airflow generally enters the filter component through the first filter element and exits through the second and third filter elements.

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Cupertino, CA, United States of America

Jen-Tai Lin