Information storage device with a conductive shield having free and forced heat convection configurations
View Patent ↗A novel information storage device has a disk drive, a disk drive support structure adapted to maintain the disk drive base in a substantially vertical position, and an electrically conductive shield attached to the disk drive base. The electrically conductive shield is disposed adjacent and overlying the disk drive printed circuit board. The electrically conductive shield includes a fan mounting surface having a fan duct opening disposed adjacent an upper end of the electrically conductive shield, and a lower air inlet opening disposed adjacent a lower end of the electrically conductive shield. The information storage device includes no fan and no fan is attached to the fan mounting surface. The electrically conductive shield forms a continuous internal air passageway from the lower air inlet opening to the fan duct opening.
1. An information storage device comprising:
a disk drive including a disk drive base having a first side and an opposing second side, a spindle attached to the disk drive base, a disk attached to the spindle, a disk drive cover attached to the first side of the disk drive base to enclose the spindle and the disk, and a disk drive printed circuit board attached to the disk drive base and disposed adjacent the second side of the disk drive base;
a disk drive support structure adapted to maintain the second side of the disk drive base in a substantially vertical position with respect to gravity; and
an electrically conductive shield attached to the disk drive base, the electrically conductive shield being disposed adjacent to and along the second side of the disk drive base and overlying the disk drive printed circuit board,
the electrically conductive shield including:
a fan mounting surface having a fan duct opening disposed adjacent an upper end of the electrically conductive shield, and
a lower air inlet opening disposed adjacent a lower end of the electrically conductive shield;
wherein the electrically conductive shield is spaced from the second side of the disk drive base to form a continuous internal air passageway from the lower air inlet opening to the fan duct opening thereby creating a path for free convective air circulation through the passageway, and wherein the information storage device includes no fan attached to the fan mounting surface.
2. The information storage device of claim 1 wherein the disk drive printed circuit board includes a Serial Advanced Technology Attachment (SATA) connector.
3. The information storage device of claim 1 wherein the continuous internal air passageway defines an internal passageway height in the range 1 mm to 10 mm.
4. The information storage device of claim 1 wherein the disk drive is a 3.5″ form-factor disk drive, and wherein the electrically conductive shield comprises sheet metal having a thickness in the range 0.8 mm to 1.6 mm.
5. The information storage device of claim 1 further comprising a bridge controller printed circuit board adjacent the electrically conductive shield, and wherein the electrically conductive shield further includes a bridge controller cooling inlet opening disposed adjacent the bridge controller printed circuit board.
6. The information storage device of claim 5 wherein the bridge controller printed circuit board includes a Serial Advanced Technology Attachment (SATA) controller.
7. The information storage device of claim 5 wherein the bridge controller printed circuit board includes a Universal Serial Bus (USB) connector.
8. The information storage device of claim 5 wherein the bridge controller printed circuit board includes an IEEE 1394 connector.
9. The information storage device of claim 5 wherein the bridge controller printed circuit board includes an Enhanced Serial Advanced Technology Attachment (eSATA) connector.
10. The information storage device of claim 5 wherein the electrically conductive shield forms a continuous internal air passageway leading generally upward from the bridge controller cooling inlet opening to the fan duct opening.