US5307236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heatsink for contact with multiple electronic components mounted on a circuit board
Assignee: Alcatel CIT SA
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Filing: 1992-07-22
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Granted: 1994-04-26
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Expires: 2012-07-22
Abstract
Abstract A heatsink to remove heat dissipated by electronic components mounted on a circuit board comprises a thermally conductive material plate disposed over the components and attached by fixing mean near each component. The plate comprises spherical deformations facing the components and each deformation is in thermal contact with the heat source of a respective component.
Inventors
- 👤 Pascal Rio
- 👤 Patrick Magnenet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:33
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/60; H10W40/611; H05; H05K; H05K7/00; H05K7/20; H05K7/2039; H05K7/20436; H10W40/20; H10W40/231; H10W40/235; H10W40/237; H10W40/242; H10W40/625
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
82 words
A heatsink which removes heat dissipated by at least one electronic component mounted on a circuit board, said heat-sink comprising a thermally conductive material plate disposed in parallel to said circuit board over said at least one component and non-movably attached to said circuit board by plural spacers near said at least one component, said plate comprising at least one spherical deformation facing said at least one component and in thermal contact with a heat source of said at least one component.
Claim 2
Dependent Claim
82 words
A heatsink which removes heat dissipated by at least one electronic component mounted on a circuit board, said heat-sink comprising a thermally conductive material plate disposed in parallel to said circuit board over said at least one component and non-movably attached to said circuit board by plural spacers near said at least one component, said plate comprising at least one spherical deformation facing said at least one component and in thermal contact with a heat source of said at least one component.
Claim 3
Dependent Claim
15 words
Heatsink according to claim 1 wherein said at least one deformation is a stamped deformation.
Claim 4
Dependent Claim
15 words
Heatsink according to claim 1 wherein said at least one deformation has a large radius.
Claim 5
Dependent Claim
50 words
Heatsink according to claim 1 wherein said at least one deformation has a thermally conductive grease applied thereto between the at least one deformation and said at least one component to achieve a large area of heat exchange between said at least one deformation and said at least one component.
Claim 6
Dependent Claim
30 words
Heatsink according to claim 1 wherein the depth of said at least one deformation is sized to the height of the at least one component to effect surface contact therebetween.
Claim 7
Dependent Claim
25 words
Heatsink according to claim 1 wherein said spacers carry resilient means to forcibly apply said at least one deformation to said at least one component.
Claim 8
Dependent Claim
50 words
Heatsink according to claim 1 wherein said at least one deformation comprises a plurality of spaced deformations having heat exchange contact surfaces and said at least one component comprises a like number of components and said plurality of deformations are matched to surface areas of heat sources of said components.
Claim 9
Dependent Claim
29 words
Heatsink according to claim 1 wherein said spacers carry a spring member thereby providing optimum thermal contact between said at least one deformation and said at least one component.
Claim 10
Dependent Claim
33 words
Heatsink according to claim 1 wherein a layer of thermally conductive material is disposed between said components and said deformations to distribute substantially uniformly the pressure exerted by said deformations on said components.
Claim 11
Dependent Claim
33 words
Heatsink according to claim 1 wherein said plate is connected electrically by a conductor to a ground of a circuit on said circuit board to constitute an electromagnetic screen for said circuit board.
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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) | 1997-04-25 | 1997-10-25 | 1998-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-25 | 2001-10-25 | 2002-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-25 | 2005-10-25 | 2006-04-26 | $7700.00 | Window Closed / Lapsed |