Head stack assembly with insulated wiring extending between actuator coil and actuator main body section disposed in lateral wiring protector extending from actuator body
View Patent ↗A head stack assembly for a disk drive. The head stack assembly includes an actuator body defining an axis of rotation. The actuator body includes a main body section and a coil support portion extending from the main body section. The head stack assembly further includes an actuator coil supported by the coil support portion. The head stack assembly further includes insulated wiring extending between the actuator coil and the main body section in a direction orthogonal to the axis of rotation. The head stack assembly further includes a lateral wiring protector disposed laterally about the insulated wiring and extending from the main body section in a direction parallel to the axis of rotation. The lateral wiring protector includes an open channel with the insulated wiring disposed within the open channel.
1. A head stack assembly for a disk drive, the head stack assembly comprising:
an actuator body defining an axis of rotation, the actuator body including a main body section and a coil support portion extending from the main body section;
an actuator coil supported by the coil support portion;
insulated wiring extending between the actuator coil and the main body section in a direction orthogonal to the axis of rotation; and
a lateral wiring protector disposed laterally about the insulated wiring and extending from the main body section in a direction parallel to the axis of rotation, the lateral wiring protector including an open channel with the insulated wiring disposed within the open channel.
2. The head stack assembly of claim 1 wherein the lateral wiring protector is integrally formed with the main body section.
3. The head stack assembly of claim 2 wherein the lateral wiring protector and the actuator body are formed of a metal material.
4. The head stack assembly of claim 1 wherein the lateral wiring protector is a punched feature formed in the main body section.
5. The head stack assembly of claim 1 wherein the lateral wiring protector is a stamped feature formed in the main body section.
6. The head stack assembly of claim 1 wherein the lateral wiring protector is a machined feature formed in the main body section.
7. The head stack assembly of claim 1 wherein the lateral wiring protector includes multiple protrusions extending from the main body section.
8. The head stack assembly of claim 7 wherein the open channel is formed between the multiple protrusions.
9. The head stack assembly of claim 7 wherein the insulated wiring is interwoven between the multiple protrusions.
10. The head stack assembly of claim 1 wherein the insulated wiring is glued to the main body section.
11. The head stack assembly of claim 1 wherein the insulated wiring is glued to the lateral wiring protector.
12. The head stack assembly of claim 1 wherein the lateral wiring protector is formed of a plastic material.
13. The head stack assembly of claim 12 wherein the lateral wiring protector is formed of overmolded plastic.
14. The head stack assembly of claim 12 wherein the main body section is formed of a metal material.
15. The head stack assembly of claim 1 wherein the open channel takes the form of an elongate depression, the insulated wiring is disposed in the elongate depression.
16. The head stack assembly of claim 1 wherein the actuator coil and the insulated wiring are integrally formed.
17. The head stack assembly of claim 1 wherein the open channel definines a depth at least half a thickness of the insulated wiring.
18. A disk drive comprising:
a disk drive base;
a head stack assembly rotatably coupled to the disk drive base, the head stack assembly including:
an actuator body defining an axis of rotation, the actuator body including a main body section and a coil support portion extending from the main body section;
an actuator coil supported by the coil support portion;
insulated wiring extending between the actuator coil and the main body section in a direction orthogonal to the axis of rotation; and
a lateral wiring protector disposed laterally about the insulated wiring and extending from the main body section in a direction parallel to the axis of rotation, the lateral wiring protector including an open channel with the insulated wiring disposed within the open channel.