US4644443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computer cooling system using recycled coolant
Assignee: Texas Instruments Inc
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Filing: 1985-09-27
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Granted: 1987-02-17
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Expires: 2005-09-27
Abstract
Abstract An enclosed, electronic system has a plurality of lower power-dissipating electronic components mounted on a chassis. The components are positioned adjacent each other to form low volume fluid ducts therebetween. A low volume fluid duct is formed between one side of the plurality and one end enclosure of the system. At least one higher power-dissipating electronc component is also mounted on the chassis, forming a high volume fluid duct between one of its sides and one side of the last of the lower power-dissipating electronic components, and a high volume fluid duct also formed between the other side of the higher power-dissipating electronic component and the other end enclosure. Air is caused to blow through the low volume fluid duct and then to be exhausted through the high volume fluid ducts. The rate of air flow through the high volume ducts is one half of the minimum required to cool the higher power-dissipating component. The rate of air flow through the low volume fluid ducts is at least one half of that required to cool each of the lower power-dissipating electronic components. By exhausting the cooling air from the low volume fluid channels through the high volume fluid ducts, the air flow required is less than the total required for the low volume fluid ducts plus the high volume fluid ducts.
Inventors
- 👤 Michael W. Swensen
- 👤 William C. Martin
- 👤 Henry H. Kight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:20
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/20536; H05K7/20554; H05K7/20572
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
242 words
An enclosed computer cabinet having at least one chassis, first and second end enclosures, and intake and exhaust air vents, comprising: (a) a plurality of lower power-dissipating electronic components mounted adjacent each other on the chassis forming low volume air ducts between each other and between the first end enclosure and one side of the adjacent lower power-dissipating electronic components; (b) at least one higher power-dissipating electronic component mounted on the chassis, adjacent the second end enclosure, to form a high volume duct with one side of the higher power-dissipating electronic component; (c) deflector means, positioned between the lower power-dissipating electronic component furthest from the first end enclosure, to form a low volume air duct with one side of the furthest lower power-dissipating electronic component, and to form a high volume air duct with the other side of the higher power-dissipating electronic component; and (d) tangential fan means positioned to cause air to be drawn into the low volume ducts over both sides of each of the lower power-dissipating electronic components, and to exhaust through the high volume ducts over both sides of the higher power-dissipating electronic component, the rate of air flow in the high volume ducts being a minimum of one half of that required to cool the higher power-dissipating electronic component, and the rate of air flow in the low volume ducts being at least one half of that required to cool each of the lower power-dissipating electronic components.
Claim 2
Dependent Claim
242 words
An enclosed computer cabinet having at least one chassis, first and second end enclosures, and intake and exhaust air vents, comprising: (a) a plurality of lower power-dissipating electronic components mounted adjacent each other on the chassis forming low volume air ducts between each other and between the first end enclosure and one side of the adjacent lower power-dissipating electronic components; (b) at least one higher power-dissipating electronic component mounted on the chassis, adjacent the second end enclosure, to form a high volume duct with one side of the higher power-dissipating electronic component; (c) deflector means, positioned between the lower power-dissipating electronic component furthest from the first end enclosure, to form a low volume air duct with one side of the furthest lower power-dissipating electronic component, and to form a high volume air duct with the other side of the higher power-dissipating electronic component; and (d) tangential fan means positioned to cause air to be drawn into the low volume ducts over both sides of each of the lower power-dissipating electronic components, and to exhaust through the high volume ducts over both sides of the higher power-dissipating electronic component, the rate of air flow in the high volume ducts being a minimum of one half of that required to cool the higher power-dissipating electronic component, and the rate of air flow in the low volume ducts being at least one half of that required to cool each of the lower power-dissipating electronic components.
Claim 3
Dependent Claim
69 words
The system of claim 1 wherein the deflector means comprises a directional portion to direct the air from the high volume ducts, the system further comprising: (e) a power supply electronic component, positioned adjacent the higher power-dissipating electronic component and the second end enclosure forming a pair of high volume ducts through which the air from the high volume ducts is passed to cool the power supply electronic component.
Claim 4
Dependent Claim
188 words
An enclosed electronic system having a chassis, an enclosure having a top and first and second end enclosures, and cooling fluid, comprising: (a) at least a first and a second lower power-dissipating electronic component mounted adjacent each other on the chassis, forming a first fluid duct between one side of the first component and the first end enclosure, and a second fluid duct between the other side of the first component and one side of the second component; (b) at least one higher power-dissipating electronic component mounted on a chassis adjacent the second component, forming a third fluid duct between one side of the higher power-dissipating electronic component and the other side of the second component, and forming a fourth fluid duct between the other side of the higher power-dissipating electronic component and the second end enclosure; and (c) pump means, positioned within the system to cause at least one half of the minimum cooling fluid required to cool the higher power-dissipating electronic component to first be drawn through each of the first and second fluid ducts, and then exhausted through each of the third and fourth ducts.
Claim 5
Dependent Claim
188 words
An enclosed electronic system having a chassis, an enclosure having a top and first and second end enclosures, and cooling fluid, comprising: (a) at least a first and a second lower power-dissipating electronic component mounted adjacent each other on the chassis, forming a first fluid duct between one side of the first component and the first end enclosure, and a second fluid duct between the other side of the first component and one side of the second component; (b) at least one higher power-dissipating electronic component mounted on a chassis adjacent the second component, forming a third fluid duct between one side of the higher power-dissipating electronic component and the other side of the second component, and forming a fourth fluid duct between the other side of the higher power-dissipating electronic component and the second end enclosure; and (c) pump means, positioned within the system to cause at least one half of the minimum cooling fluid required to cool the higher power-dissipating electronic component to first be drawn through each of the first and second fluid ducts, and then exhausted through each of the third and fourth ducts.
Claim 6
Dependent Claim
25 words
The system of claim 3 wherein the cooling fluid comprises air and the system includes air inlets and air exhaust vents formed in the enclosure.
Claim 7
Dependent Claim
12 words
The system of claim 2 wherein the pump means comprises fan means.
Claim 8
Dependent Claim
88 words
The system of claim 5 wherein a plurality in excess of two of lower power-dissipating electronic components is provided, positioned adjacent each other, forming low volume fluid ducts between each other, the first fluid duct being formed between one side of the first of the lower power-dissipating electronic components and the first end enclosure, and the nth fluid duct being formed between the other side of the lower power-dissipating electronic component positioned furthest from the first end enclosure and the one side of the higher power-dissipating electronic component.
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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) | 1990-02-16 | 1990-08-18 | 1991-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-16 | 1994-08-18 | 1995-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-16 | 1998-08-18 | 1999-02-17 | $7700.00 | Window Closed / Lapsed |