Staas & Halsey LLP
Head drum apparatus
A head drum apparatus including a lower drum; a stationary shaft pressed and fitted into a center hole of the lower drum; an upper drum rotatably coupled to the stationary shaft via at least one bearing; a rotor magnet secured via a plate to the upper drum; a boss fixed to the top portion of the stationary shaft by a set-screw; a PCB mounted to the boss such that it is opposite to the rotor magnet, the PCB having a pulse generator (&#8220;PG&#8221;) pattern, a frequency generator (&#8220;FG&#8221;) pattern, connection patterns and jump patterns formed on one surface thereof, the PG pattern and the FG pattern being connected to the respective connection patterns via the respective jump patterns; and motor stator coils mounted to the PCB, whereby the structure of the motor becomes simpler, the number of the components and the manufacturing steps are reduced, the manufacturing efficiency is enhanced and the productivity thereof is increased.
Samsung Electronics Co., Ltd.
G
G11B
inventional
Chung-Hum Young-Ho Do-Young Sung-Hee Jun-Young Hyeong-Seok Seung-Woo
Baik Cho Choi Hong Kim Choi Lee