Patent US5567986A successfully refreshed from Google Patents.
US5567986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat sink
Assignee: Diamond Electric Manufacturing Co Ltd
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Filing: 1994-05-27
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Granted: 1996-10-22
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Expires: 2014-05-27
Abstract
Abstract A heat sink is provided wherein a heat receiving plate and at least one piece of heat radiating fin are stacked in the heat sink, and an interval between the heat receiving plate and fin is maintained by a number of bosses geometrically disposed on the heat radiating fin. The bottom of each boss is soldered onto the adjacent heat receiving plate or heat radiating fin. The heat sink therefore is provided with a plurality of conductive contacts between said fins and said heat receiving plate in the radial or transverse direction.
Inventors
- 👤 Yoshio Ishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:39
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/43; F; F28; F28D; F28D15/00; F28D15/02; F28D15/0233; F28D15/0275; F28F; F28F3/00; F28F3/02; H10W40/20; H10W40/22; H10W40/226
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
80 words
A heat sink comprising: a heat receiving plate; and a heat radiating means for radiating heat from a heat generating body stacked on said heat receiving plate, wherein an interval between said heat receiving plate and said heat radiating means is defined by a plurality of bosses geometrically disposed on said heat radiating means, said plurality of bosses being integrally formed on said heat radiating means, wherein a bottom surface of each boss is soldered onto said heat receiving plate.
Claim 2
Dependent Claim
80 words
A heat sink comprising: a heat receiving plate; and a heat radiating means for radiating heat from a heat generating body stacked on said heat receiving plate, wherein an interval between said heat receiving plate and said heat radiating means is defined by a plurality of bosses geometrically disposed on said heat radiating means, said plurality of bosses being integrally formed on said heat radiating means, wherein a bottom surface of each boss is soldered onto said heat receiving plate.
Claim 3
Dependent Claim
46 words
The heat sink according to claim 1, wherein said heat radiating means comprises a fin formed as a brazing sheet, said brazing sheet defined by a core material and a soldering material disposed thereon, said core material having a higher melting point than said soldering material.
Claim 4
Dependent Claim
20 words
The heat sink according to claim 1, wherein a hole for air convection is formed on said heat radiating means.
Claim 5
Dependent Claim
19 words
The heat sink according to claim 1, wherein said heat receiving plate is formed into a heat pipe structure.
Claim 6
Dependent Claim
51 words
The heat sink according to claim 1, wherein said heat receiving plate comprises a heat pipe including a bottom plate, cover plate and actuating fluid, at least one of said bottom plate and cover plate being formed as a brazing sheet having a core material and a soldering material disposed thereon.
Claim 7
Dependent Claim
48 words
The heat sink according to claim 1, wherein said heat receiving plate is formed into a heat pipe structure, an injection hole for actuating fluid is formed approximately at the center of said heat receiving plate, and said heat receiving plate is soldered to said heat radiating means.
Claim 8
Dependent Claim
25 words
The heat sink according to claim 1, wherein a core member of said heat radiating means is composed of a fused wire net having apertures.
Claim 9
Dependent Claim
16 words
The heat sink according to claim 1, wherein said heat receiving plate is made of ceramics.
Claim 10
Dependent Claim
96 words
A heat sink comprising: a heat receiving plate defining a planar surface; and a heat radiating means for radiating heat from a heat generating body provided on said heat receiving plate, and a convection space provided between said heat receiving plate and said heat radiating means, wherein said heat receiving plate contacts said heat radiating at a plurality of discrete locations disposed along said planar surface, wherein said discrete locations are radially disposed about a geometric center point of said planar surface, and said discrete locations are radially symmetric with respect to said geometric center point.
Claim 11
Dependent Claim
96 words
A heat sink comprising: a heat receiving plate defining a planar surface; and a heat radiating means for radiating heat from a heat generating body provided on said heat receiving plate, and a convection space provided between said heat receiving plate and said heat radiating means, wherein said heat receiving plate contacts said heat radiating at a plurality of discrete locations disposed along said planar surface, wherein said discrete locations are radially disposed about a geometric center point of said planar surface, and said discrete locations are radially symmetric with respect to said geometric center point.
Claim 12
Dependent Claim
29 words
The heat sink according to claim 9, wherein said heat radiating means comprises a plurality of fins mounted onto said heat receiving plate, each fin defining a fin surface.
Claim 13
Dependent Claim
18 words
The heat sink according to claim 9, wherein said fin surface is substantially parallel to said planar surface.
Claim 14
Dependent Claim
36 words
The heat sink according to claim 11, wherein said plurality of fins are respectively stacked on said heat receiving plate, and contact an adjacent fin at a plurality of discrete locations disposed along said fin surface.
Claim 15
Dependent Claim
23 words
The heat sink according to claim 12, wherein said heat radiating means is soldered to said heat receiving means at said discrete locations.
Claim 16
Dependent Claim
25 words
The heat sink according to claim 9, wherein said heat receiving plate comprises a heat pipe including a bottom plate, cover plate and actuating fluid.
Claim 17
Dependent Claim
30 words
The heat sink according to claim 14, wherein said bottom plate is formed with groove means for receiving said actuating fluid, said groove means being formed into said bottom plate.
Claim 18
Dependent Claim
29 words
The heat sink according to claim 15, wherein said groove means define circumferential and radial grooves, said actuating fluid passing through said groove during convection of said actuating fluid.
Claim 19
Dependent Claim
29 words
The heat sink according to claim 9, wherein said heat radiating means comprises a core member having a surface layer disposed thereon, said surface layer being a soldering material.
Claim 20
Dependent Claim
25 words
The heat sink according to claim 9, wherein a core member of said heat radiating means is composed of a fused wire net having apertures.
Claim 21
Dependent Claim
31 words
The heat sink according to claim 1, wherein said plurality of bosses protrude from a planar surface of said heat radiating means, said plurality of bosses being formed by press forming.
Claim 22
Dependent Claim
30 words
The heat sink according to claim 1, wherein said heat radiating means comprises a plurality of fins stacked on said heat receiving plate, each fin comprising said plurality of bosses.
Claim 23
Dependent Claim
13 words
The heat sink according to claim 9, wherein said planar surface is circular.
Claim 24
Dependent Claim
13 words
The heat sink according to claim 9, wherein said planar surface is non-circular.
Claim 25
Dependent Claim
29 words
The heat sink according to claim 9, wherein said geometric center point is defined by a screw portion passing through said heat receiving plate and said heat radiating means.
References Cited (Backward Citations)
US4421161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-10-22 | 2000-04-22 | 2000-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-22 | 2004-04-22 | 2004-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-22 | 2008-04-22 | 2008-10-22 | $7700.00 | Window Closed / Lapsed |