US 11,942,121 B2
Anchoring structure for improved structural dynamics of actuators in a multi-actuator hard disk drive
Jung-Seo Park, San Jose, CA (US); Siddhesh Vivek Sakhalkar, Milpitas, CA (US); Thomas J. Hitchner, San Martin, CA (US); and Arman V. Golgolab, Los Altos, CA (US)
Assigned to Western Digital Technologies, Inc., San Jose, CA (US)
Filed by Western Digital Technologies, Inc., San Jose, CA (US)
Filed on Jun. 5, 2023, as Appl. No. 18/206,046.
Claims priority of provisional application 63/392,817, filed on Jul. 27, 2022.
Prior Publication US 2024/0038262 A1, Feb. 1, 2024
Int. Cl. G11B 5/48 (2006.01); G11B 25/04 (2006.01)
CPC G11B 5/4813 (2013.01) [G11B 5/4833 (2013.01); G11B 25/043 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data storage device comprising:
a plurality of disk media rotatably mounted on a spindle;
a first head slider comprising a read-write head configured to write to and to read from a first disk medium;
a first rotary actuator configured to move the first head slider to access portions of the first disk medium via actuation by a first voice coil motor assembly (VCMA) comprising at least one first magnet coupled with a first magnet housing plate;
a second head slider comprising a read-write head configured to write to and to read from a second disk medium;
a second rotary actuator configured to move the second head slider to access portions of the second disk medium via actuation by a second voice coil motor assembly (VCMA) comprising at least one second magnet coupled with a second magnet housing plate;
an enclosure base; and
a central support plate directly fastened to and in direct contact with the enclosure base and positioned between the first magnet housing plate of the first VCMA and the second magnet housing plate of the second VCMA.