US5218513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plenum for air-impingement cooling of electronic components
Assignee: Hewlett Packard Development Co LP
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Filing: 1992-08-04
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Granted: 1993-06-08
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Expires: 2012-08-04
Abstract
Abstract An electronic circuit assembly (10) including circuit boards (14, 16 and 18) includes a plenum (22) disposed adjacent the components (38 and 40) on the circuit boards for directing air from a blower (18) selectively onto the components (38 and 40). Struts (34, 34', and 82) extending between the plenum's face walls (24, 26) prevent excessive bowing of those walls under the pressure caused by the blower (18). As a consequence, the plenum can be made of material that is relatively thin and light.
Inventors
- 👤 David W. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:01
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/20536; H05K7/20554; H05K7/20563
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
104 words
An electronic-circuit assembly including: A) a generally planar circuit board; B) a plurality of electronic components mounted on the circuit board; C) a plenum including generally opposed face walls and end walls extending therebetween to form a coolant-flow chamber and further including struts disposed in the chamber, extending between the face walls, and holding them together, at least one of the face walls forming openings in registration with respective ones of the electronic components by which cooling fluid can flow from the chamber to the respective electronic components; and D) means for causing cooling fluid to flow through the chamber and out the openings.
Claim 2
Dependent Claim
104 words
An electronic-circuit assembly including: A) a generally planar circuit board; B) a plurality of electronic components mounted on the circuit board; C) a plenum including generally opposed face walls and end walls extending therebetween to form a coolant-flow chamber and further including struts disposed in the chamber, extending between the face walls, and holding them together, at least one of the face walls forming openings in registration with respective ones of the electronic components by which cooling fluid can flow from the chamber to the respective electronic components; and D) means for causing cooling fluid to flow through the chamber and out the openings.
Claim 3
Dependent Claim
19 words
An electronic-circuit assembly as defined in claim 1 wherein the plenum member is made of an extruded plastic material.
Claim 4
Dependent Claim
18 words
An electronic-circuit assembly as defined in claim 2 wherein the struts are formed integrally with the face walls.
Claim 5
Dependent Claim
18 words
An electronic-circuit assembly as defined in claim 1 wherein the struts are formed integrally with the face walls.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-07 | 1996-12-07 | 1997-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-07 | 2000-12-07 | 2001-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-07 | 2004-12-07 | 2005-06-08 | $7700.00 | Window Closed / Lapsed |