Patent US3242038A successfully refreshed from Google Patents.
Patent US5019939A successfully refreshed from Google Patents.
US5019939A
Expired / Lapsed
US
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Thermal management plate
Assignee: AG Communication Systems Corp
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Filing: 1989-10-24
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Granted: 1991-05-28
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Expires: 2009-10-24
Abstract
Abstract A thermal management plate designed to take advantage of the thermally conductive path provided as an integral part of printed circuit board component assemblies. The plate is a shelf-like unit providing both thermal management of electronic assemblies and a mounting arrangement for assemblies. Manufactured of high conductive material, the unit includes a printed circuit board assembly locator, a thermal path and a series of finned surfaces on the front and rear to dissipate heat generated by components.
Inventors
- 👤 William A. Reimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:40
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1401; H05K7/1402; H05K7/1404
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
191 words
A thermal management plate to provide support for printed circuit board assemblies and for conduction of thermal energy from said assemblies to the environment, said plate comprising: a base of thermal energy conductive material, including top and bottom surfaces and front and rear edges; a plurality of thermal energy conductive printed circuit board assembly locator elements mounted on at least one of said surfaces; said locator elements each configured to provide thermal energy conductive coupling between a printed circuit board assembly and said thermal management plate; each of said locator elements including a machined surface to make contact with a printed circuit board assembly; each of said printed circuit board assembly locator elements including a plurality of projections of diminishing lengths to provide an overall wedge-like configuration adapted to assist in forcing a printed circuit board assembly against the machined surface of one of said locator elements; thermal energy dissipating fins located on at least one of said edges; whereby thermal energy generated by said printed circuit board assemblies supported by said thermal management plate is conducted via said locator elements, to said base then via said fins to the environment.
Claim 2
Dependent Claim
191 words
A thermal management plate to provide support for printed circuit board assemblies and for conduction of thermal energy from said assemblies to the environment, said plate comprising: a base of thermal energy conductive material, including top and bottom surfaces and front and rear edges; a plurality of thermal energy conductive printed circuit board assembly locator elements mounted on at least one of said surfaces; said locator elements each configured to provide thermal energy conductive coupling between a printed circuit board assembly and said thermal management plate; each of said locator elements including a machined surface to make contact with a printed circuit board assembly; each of said printed circuit board assembly locator elements including a plurality of projections of diminishing lengths to provide an overall wedge-like configuration adapted to assist in forcing a printed circuit board assembly against the machined surface of one of said locator elements; thermal energy dissipating fins located on at least one of said edges; whereby thermal energy generated by said printed circuit board assemblies supported by said thermal management plate is conducted via said locator elements, to said base then via said fins to the environment.
Claim 3
Dependent Claim
16 words
A thermal management plate as claimed in claim 1 wherein: said plate is constructed of aluminum.
Claim 4
Dependent Claim
29 words
A thermal management plate as claimed in claim 1 wherein: a plurality of thermal energy conductive printed circuit board assembly locator elements are mounted to each of said surfaces.
Claim 5
Dependent Claim
24 words
The thermal management plate as claimed in claim 1 wherein: thermal energy dissipating fins are located on both said front and said rear edges.
Claim 6
Dependent Claim
22 words
A thermal management plate as claimed in claim 1 wherein: said base further includes a heat pipe for conduction of cooling liquid.
References Cited (Backward Citations)
US3231785A
Cited
US4318157A
Cited
US4366526A
Cited
US4710853A
Cited
US4716493A
Cited
US4853828A
Cited
US4702535A
Cited
US4867235A
Cited
US4845380A
Cited
US4821149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |