Arm coil assembly, arm flexible cable assembly and disk drive unit with the same

An arm flexible cable assembly, comprising:

• a flexible printed cable assembly including a controlling circuit board and a flexible printed cable with at least two mounting holes formed in a connecting region thereof;
• and
• an arm coil assembly including a drive arm having at least two grounding pins formed on a mounting region thereof and a voice coil fixed on the tailing end of the drive arm for controlling the drive arm, the grounding pins electrically connecting with the flexible printed cable assembly by extending through the mounting holes;
• wherein each grounding pin has a slot formed thereon to clamp the flexible printed cable assembly.

A disk drive unit, comprising:

• a head gimbal assembly including a slider and a suspension with a suspension tongue that supports the slider;
• an arm flexible cable assembly connected to the head gimbal assembly;
• a disk;
• and
• a spindle motor operable to spin the disk;
• wherein the arm flexible cable assembly, comprising:
• a flexible printed cable assembly including a controlling circuit board and a flexible printed cable with at least two mounting holes formed in a connecting region thereof;
• and
• an arm coil assembly including a drive arm having at least two grounding pins formed on a mounting region thereof and a voice coil fixed on the tailing end of the drive arm for controlling the drive arm, the grounding pins electrically connecting with the flexible printed cable assembly by extending through the mounting holes;
• wherein each grounding pin has a slot formed thereon to clamp the flexible printed cable assembly.