US6707669B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat dissipation apparatus
Assignee: Quanta Computer Inc
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Filing: 2002-09-23
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Granted: 2004-03-16
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Expires: 2022-09-23
Abstract
Abstract A heat dissipation apparatus for a computer system having a heat source. The heat dissipation apparatus includes an outlet, a temperature gradient maintaining device and an unpowered fan. The outlet is disposed on one side of the computer system. A thermal convection route exists between the heat source and the outlet. The temperature gradient maintaining device provides and maintains a temperature difference between the heat source and the outlet. The unpowered fan has a plurality of blades and is disposed on the thermal convection route.
Inventors
- 👤 Jen-Hsiang Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:44
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/43
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
69 words
A heat dissipation apparatus for a computer system with a heat source, comprising: an outlet disposed on one side of the computer system, wherein a thermal convection route is formed between the heat source and the outlet, a temperature gradient maintaining device for maintaining a temperature difference between the heat source and the outlet, and an unpowered fan with a plurality of blades disposed on the thermal convection route.
Claim 2
Dependent Claim
69 words
A heat dissipation apparatus for a computer system with a heat source, comprising: an outlet disposed on one side of the computer system, wherein a thermal convection route is formed between the heat source and the outlet, a temperature gradient maintaining device for maintaining a temperature difference between the heat source and the outlet, and an unpowered fan with a plurality of blades disposed on the thermal convection route.
Claim 3
Dependent Claim
20 words
The heat dissipation apparatus as claimed in claim 1 , wherein the unpowered fan is disposed beside the heat source.
Claim 4
Dependent Claim
21 words
The heat dissipation apparatus as claimed in claim 1 , wherein the temperature gradient maintaining device is disposed on the outlet.
Claim 5
Dependent Claim
31 words
The heat dissipation apparatus as claimed in claim 1 , wherein the unpowered fan rotates due to thermal convection between the heat source and the outlet caused by the temperature difference.
Claim 6
Dependent Claim
41 words
The heat dissipation apparatus as claimed in claim 1 , wherein the temperature gradient maintaining device maintains the temperature difference between the heat source and the outlet at 30° C.˜50° C. to keep the blades of the unpowered fan rotating continuously.
Claim 7
Dependent Claim
17 words
The heat dissipation apparatus as claimed in claim 1 , wherein the heat source is a CPU.
Claim 8
Dependent Claim
19 words
The heat dissipation apparatus as claimed in claim 1 , wherein the heat source is a hard disk drive.
Claim 9
Dependent Claim
19 words
The heat dissipation apparatus as claimed in claim 1 , wherein the heat source is an optical disk drive.
Claim 10
Dependent Claim
18 words
The heat dissipation apparatus as claimed in claim 1 , wherein the heat source is a random-access memory.
Claim 11
Dependent Claim
19 words
The heat dissipation apparatus as claimed in claim 1 , wherein the heat source is a power supply device.
Claim 12
Dependent Claim
19 words
The heat dissipation apparatus as claimed in claim 1 , wherein the blades of the unpowered fan are plastic.
Claim 13
Dependent Claim
20 words
The heat dissipation apparatus as claimed in claim 1 , wherein the temperature gradient maintaining device is a cooling device.
References Cited (Backward Citations)
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US5816909A
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US6088224A
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US6227961B1
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-03-16 | 2007-09-15 | 2008-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-03-16 | 2011-09-15 | 2012-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-03-16 | 2015-09-15 | 2016-03-16 | $7700.00 | Window Closed / Lapsed |