IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0608874
(2003-06-27)
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발명자
/ 주소 |
- Codilian, Raffi
- Singh, Dalwinder
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출원인 / 주소 |
- Western Digital Technologies, Inc.
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대리인 / 주소 |
Blakely, Sokoloff, Taylor &
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인용정보 |
피인용 횟수 :
49 인용 특허 :
3 |
초록
▼
Disclosed is a disk drive cover that provides improved disk shrouding and heat dissipation. Part of the cover is recessed relative to the rest and may be substantially circular. The recessed portion may be located approximately adjacent to at least one disk and may be substantially coextensive with
Disclosed is a disk drive cover that provides improved disk shrouding and heat dissipation. Part of the cover is recessed relative to the rest and may be substantially circular. The recessed portion may be located approximately adjacent to at least one disk and may be substantially coextensive with at least one disk. Further, the internal side of the recessed portion may be at a vertical depth sufficient enough to shroud at least one disk. Additionally, the recessed portion may further include at least a member that projects from the external side of the recessed portion, such as approximately arcuate-shaped members or approximately rectangular-shaped members, to aid in heat dissipation.
대표청구항
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1. A cover for use in a disk drive, the disk drive including the cover, a base, at least one disk mounted to a spindle motor for rotation within the disk drive, and a head stack assembly (HSA) including an actuator assembly pivotally coupled to the base of the disk drive to support at least one head
1. A cover for use in a disk drive, the disk drive including the cover, a base, at least one disk mounted to a spindle motor for rotation within the disk drive, and a head stack assembly (HSA) including an actuator assembly pivotally coupled to the base of the disk drive to support at least one head for writing and reading data to and from the at least one disk, the cover for mounting to the base, the cover comprising:a first cover portion having an external side and an internal side; and a second cover portion having an external side and an internal side disposed within the first cover portion, the second cover portion being recessed relative to the first cover portion, the recessed second cover portion being located approximately adjacent to the at least one disk and being substantially coextensive with the at least one disk, the internal side of the recessed second cover portion facing the at least one disk and being closer to the at least one disk than the internal side of the first cover portion. 2. The cover of claim 1, wherein the recessed second cover portion is substantially circular.3. The cover of claim 1, wherein the recessed second cover portion is substantially polygonal.4. The cover of claim 1, wherein the internal side of the recessed second cover portion is at a vertical depth sufficient enough to shroud the at least one disk.5. The cover of claim 1, wherein the external side of the recessed second cover portion is at least one millimeter vertically distant from the external side of the first cover portion.6. The cover of claim 1, wherein the external side of the recessed second cover portion is at least two millimeters vertically distant from the external side of the first cover portion.7. The cover of claim 1, wherein the recessed second cover portion further includes at least one member that projects from the external side of the recessed second cover portion to aid in heat dissipation.8. The cover of claim 1, wherein the base includes a bottom side having a base channel formed therein, the base channel extending from a front end of the base towards a back end of the base and a printed circuit board assembly (PCBA) of the disk drive such that the base channel is in air-flow communication with air flowing about the base from at least the front end of the base to aid in heat dissipation.9. The cover of claim 1, wherein the cover mounted the base to form a housing of the disk drive is compatible with a small form factor standard.10. The cover of claim 7, wherein the at least one member includes an approximately arcuate-shaped member to aid in heat dissipation.11. The cover of claim 7, wherein the at least one member includes an approximately rectangular-shaped member to aid in heat dissipation.12. The cover of claim 7, wherein a plurality of approximately rectangular-shaped members project from the external side of the recessed second cover portion to form a plurality of air-flow channels to aid in heat dissipation.13. The cover of claim 7, wherein the external side of the first cover portion includes at least one channel having at most the same depth as the recessed second cover portion, the channel extending from a side of the cover to the recessed second cover portion, the channel further being disposed within a respective complementary channel-accommodating slot formed within a respective sidewall of the base, such that the at least one member of the recessed second cover portion, through the at least one channel, is in air-flow communication with air flowing about the cover and base to aid in heat dissipation.14. The cover of claim 7, wherein the at least one member that projects from the external side of the recessed second cover portion to aid in heat dissipation is integrally formed with the recessed second cover portion.15. The cover of claim 7, wherein the at least one member that projects from the external side of the recessed second cover portion to aid in heat dissipation is attachable to the recessed second cover portion.16. The cover of claim 8, wherein the bottom side of the base further includes at least one side channel extending from a sidewall of the base to the base channel such that the base channel is in air-flow communication with air flowing about the base from at least the front end of the base and at least one of the sides of the base to aid in heat dissipation.17. The cover of claim 12, wherein the external side of the first cover portion includes at least one channel having at most the same depth as the recessed second cover portion, the channel extending from a side of the cover to the recessed second cover portion, the channel further being disposed within a respective complementary channel-accommodating slot formed within a respective sidewall of the base, such that the plurality of approximately rectangular-shaped members of the recessed second cover portion, through the at least one channel, is in air-flow communication with air flowing about the cover and base to aid in heat dissipation.18. A cover for use in a disk drive, the disk drive including the cover, a base, at least one disk mounted to a spindle motor for rotation within the disk drive, and a head stack assembly (HSA) including an actuator assembly pivotally coupled to the base of the disk drive to support at least one head for writing and reading data to and from the at least one disk, the cover for mounting to the base, the cover comprising:a first cover portion having an external side and an internal side; and a second cover portion having an external side and an internal side disposed within the first cover portion, the second cover portion being recessed relative to the first cover portion, the recessed second cover portion being located approximately adjacent to the at least one disk and being substantially coextensive with the at least one disk; wherein the external side of the first cover portion includes a plurality of channels having at most the same depth as the recessed second cover portion, each channel extending from a side of the cover to the recessed second cover portion, each channel further being disposed within a respective complementary channel-accommodating slot formed within a respective sidewall of the base, respectively, wherein at least one of the channels extends from a different side of the cover than one of the other channels to create at least two different channels, such that the second recessed cover portion is in air-flow communication with air flowing about the cover from at least two different sides of the cover through the at least two different channels to aid in heat dissipation. 19. The cover of claim 18, wherein the recessed second cover portion is substantially circular.20. The cover of claim 18, wherein the recessed second cover portion is substantially polygonal.21. The cover of claim 18, further comprising a back end channel coupled to one of the at least two different channels, the back end channel further being disposed within a complementary back end channel-accommodating slot formed within a back end sidewall of the base.22. The cover of claim 18, wherein one of the channels extends between different sides of the cover but not through the recessed second cover portion.23. The cover of claim 18, wherein the base includes a bottom side having a base channel formed therein, the base channel extending from a front end of the base towards a back end of the base and a printed circuit board assembly (PCBA) of the disk drive such that the base channel is in air-flow communication with air flowing about the base from at least the front end of the base to aid in heat dissipation.24. The cover of claim 18, wherein the recessed second cover portion further includes at least one member that projects from the external side of the recessed second cover portion to aid in heat dissipation.25. The cover of claim 18, wherein the cover mounted the base to form a housing of the disk drive is compatible with a small form factor standard.26. The cover of claim 23, wherein the bottom side of the base further includes at least one side channel extending from a sidewall of the base to the base channel such that the base channel is in air-flow communication with air flowing about the base from at least the front end of the base and at least one of the sides of the base to aid in heat dissipation.27. The cover of claim 24, wherein the at least one member includes an approximately arcuate-shaped member to aid in heat dissipation.28. The cover of claim 24, wherein the at least one member includes an approximately rectangular-shaped member to aid in heat dissipation.29. The cover of claim 24, wherein a plurality of approximately rectangular-shaped members project from the external side of the recessed second cover portion to form a plurality of air-flow channels to aid in heat dissipation.30. The cover of claim 24, wherein the at least one member that projects from the external side of the recessed second cover portion to aid in heat dissipation is integrally formed with the recessed second cover portion.31. The cover of claim 24, wherein the at least one member that projects from the external side of the recessed second cover portion to aid in heat dissipation is attachable to the recessed second cover portion.32. A disk drive comprising:a base; a cover mounted to the base; at least one disk mounted to a spindle motor for rotation within the disk drive; and a head stack assembly (HSA) including an actuator assembly pivotally coupled to the base of the disk drive to support a head gimbal assembly (HGA) having at least one head for writing and reading data to and from the at least one disk; wherein, the cover includes: a first cover portion having an external side and an internal side; and a second cover portion having an external side and an internal side disposed within the first cover portion, the second cover portion being recessed relative to the first cover portion, the recessed second cover portion being located approximately adjacent to the at least one disk and being substantially coextensive with the at least one disk, the internal side of the recessed second cover portion facing the at least one disk and being closer to the at least one disk than the internal side of the first cover portion. 33. The disk drive of claim 32, wherein the recessed second cover portion is substantially circular.34. The disk drive of claim 32, wherein the recessed second cover portion is substantially polygonal.35. The disk drive of claim 32, wherein the internal side of the recessed second cover portion is at a vertical depth sufficient enough to shroud the at least one disk.36. The disk drive of claim 32, wherein the external side of the recessed second cover portion is at least one millimeter vertically distant from the external side of the first cover portion.37. The disk drive of claim 32, wherein the external side of the recessed second cover portion is at least two millimeters vertically distant from the external side of the first cover portion.38. The disk drive of claim 32, wherein the recessed second cover portion further includes at least one member that projects from the external side of the recessed second cover portion to aid in heat dissipation.39. The disk drive of claim 32, wherein the base includes a bottom side having a base channel formed therein, the base channel extending from a front end of the base towards a back end of the base and a printed circuit board assembly (PCBA) of the disk drive such that the base channel is in air-flow communication with air flowing about the base from at least the front end of the base to aid in heat dissipation.40. The disk drive of claim 32, wherein the cover mounted the base to form a housing of the disk drive is compatible with a small form factor standard.41. The disk drive of claim 38, wherein the at least one member includes an approximately arcuate-shaped member to aid in heat dissipation.42. The disk drive of claim 38, wherein the at least one member includes an approximately rectangular-shaped member to aid in heat dissipation.43. The disk drive of claim 38, wherein a plurality of approximately rectangular-shaped members project from the external side of the recessed second cover portion to form a plurality of air-flow channels to aid in heat dissipation.44. The disk drive of claim 38, wherein the external side of the first cover portion includes at least one channel having at most the same depth as the recessed second cover portion, the channel extending from a side of the cover to the recessed second cover portion, the channel further being disposed within a respective complementary channel-accommodating slot formed within a respective sidewall of the base, such that the at least one member of the recessed second cover portion, through the at least one channel, is in air-flow communication with air flowing about the cover and base to aid in heat dissipation.45. The disk drive of claim 38, wherein the at least one member that projects from the external side of the recessed second cover portion to aid in heat dissipation is integrally formed with the recessed second cover portion.46. The disk drive of claim 38, wherein the at least one member that projects from the external side of the recessed second cover portion to aid in heat dissipation is attachable to the recessed second cover portion.47. The disk drive of claim 39, wherein the bottom side of the base further includes at least one side channel extending from a sidewall of the base to the base channel such that the base channel is in air-flow communication with air flowing about the base from at least the front end of the base and at least one of the sides of the base to aid in heat dissipation.48. The disk drive of claim 43, wherein the external side of the first cover portion includes at least one channel having at most the same depth as the recessed second cover portion, the channel extending from a side of the cover to the recessed second cover portion, the channel farther being disposed within a respective complementary channel-accommodating slot formed within a respective sidewall of the base, such that the plurality of approximately rectangular-shaped members of the recessed second cover portion, through the at least one channel, is in air-flow communication with air flowing about the cover and base to aid in heat dissipation.49. A disk drive comprising:a base; a cover mounted to the base; at least one disk mounted to a spindle motor for rotation within the disk drive; and a head stack assembly (HSA) including an actuator assembly pivotally coupled to the base of the disk drive to support a head gimbal assembly (HGA) having at least one head for writing and reading data to and from the at least one disk; wherein, the cover includes: a first cover portion having an external side and an internal side; and a second cover portion having an external side and an internal side disposed within the first cover portion, the second cover portion being recessed relative to the first cover portion, the recessed second cover portion being located approximately adjacent to the at least one disk and being substantially coextensive with the at least one disk, wherein the external side of the first cover portion includes a plurality of channels having at most the same depth as the recessed second cover portion, each channel extending from a side of the cover to the recessed second cover portion, each channel further being disposed within a respective complementary channel-accommodating slot formed within a respective sidewall of the base, respectively, wherein at least one of the channels extends from a different side of the cover than one of the other channels to create at least two different channels, such that the second recessed cover portion is in air-flow communication with air flowing about the cover from at least two different sides of the cover through the at least two different channels to aid in heat dissipation. 50. The disk drive of claim 49, wherein the recessed second cover portion is substantially circular.51. The disk drive of claim 49, wherein the recessed second cover portion is substantially polygonal.52. The disk drive of claim 49, further comprising a back end channel coupled to one of the at least two different channels, the back end channel further being disposed within a complementary back end channel-accommodating slot formed within a back end sidewall of the base.53. The disk drive of claim 49, wherein one of the channels extends between different sides of the cover but not through the recessed second cover portion.54. The disk drive of claim 49, wherein the base includes a bottom side having a base channel formed therein, the base channel extending from a front end of the base towards a back end of the base and a printed circuit board assembly (PCBA) of the disk drive such that the base channel is in air-flow communication with air flowing about the base from at least the front end of the base to aid in heat dissipation.55. The disk drive of claim 49, wherein the recessed second cover portion further includes at least one member that projects from the external side of the recessed second cover portion to aid in heat dissipation.56. The disk drive of claim 49, wherein the cover mounted the base to form a housing of the disk drive is compatible with a small form factor standard.57. The disk drive of claim 54, wherein the bottom side of the base further includes at least one side channel extending from a sidewall of the base to the base channel such that the base channel is in air-flow communication with air flowing about the base from at least the front end of the base and at least one of the sides of the base to aid in heat dissipation.58. The disk drive of claim 55, wherein the at least one member includes an approximately arcuate-shaped member to aid in heat dissipation.59. The disk drive of claim 55, wherein the at least one member includes an approximately rectangular-shaped member to aid in heat dissipation.60. The disk drive of claim 55, wherein a plurality of approximately rectangular-shaped members project from the external side of the recessed second cover portion to form a plurality of air-flow channels to aid in heat dissipation.61. The disk drive of claim 55, wherein the at least one member that projects from the external side of the recessed second cover portion to aid in heat dissipation is integrally formed with the recessed second cover portion.62. The disk drive of claim 55, wherein the at least one member that projects from the external side of the recessed second cover portion to aid in heat dissipation is attachable to the recessed second cover portion.
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