Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – With provision for cooling the housing or its contents
Patent
1992-09-30
1994-04-19
Hille, Rolf
Active solid-state devices (e.g., transistors, solid-state diode
Housing or package
With provision for cooling the housing or its contents
257712, 257721, 361690, 361694, 174 161, 174 163, 165 803, H01L 2504
Patent
active
053048458
ABSTRACT:
An apparatus is disclosed for fluid dynamically augmenting a heat sink to displace a boundary layer in the cooling fluid adjacent to the surfaces of the heat sink cooling fins. Ribs with a thickness slightly less than the thickness of the boundary layer cause secondary flow in the cooling fluid downstream from the rib in the form of vortices which displace hotter slower moving fluid by drawing in cooler fluid farther from the surface of the fins. The ribs are constructed on the surface of the cooling fins in an inverted V-shaped configuration. The angle of the ribs in the inverted V-shaped configuration is optimized to intersect the entire flow of the fluid through the heat sink forming a means for efficient dissipating heat from the heat sink over its entire surface area.
REFERENCES:
patent: 2535721 (1950-12-01), Chausson
patent: 2984774 (1961-05-01), Race
patent: 3147801 (1964-09-01), Katz
patent: 3163207 (1964-12-01), Schultz
patent: 3421578 (1969-01-01), Marton
patent: 3435891 (1969-04-01), Parrish
patent: 4009752 (1977-03-01), Wilson
patent: 4296455 (1981-10-01), Leaycraft et al.
patent: 4541004 (1985-09-01), Moore
patent: 4638858 (1987-01-01), Chu
patent: 4682651 (1987-07-01), Gabuzda
patent: 4715438 (1987-12-01), Gabuzda et al.
patent: 4733293 (1988-03-01), Gabuzda
patent: 4823869 (1989-04-01), Arnold et al.
patent: 4884631 (1989-12-01), Rippel
patent: 4899210 (1990-02-01), Lorenzetti et al.
patent: 4918571 (1990-04-01), Grabbe
patent: 4964458 (1990-10-01), Flint et al.
patent: 5019880 (1991-05-01), Higgins, III
patent: 5043845 (1991-08-01), McDermott et al.
patent: 5049982 (1991-09-01), Lee et al.
patent: 5168348 (1992-12-01), Chu et al.
"Boundary-Layer Theory", Dr. Hermann Schlichting, 7th Ed., 1979, McGraw Hill, New York, Chapter 2, pp. 24-46.
Bailey Douglas A.
Lindquist Stephen E.
Brinkman Dirk
Cefalo Albert P.
Digital Equipment Corporation
Hille Rolf
Ostrowski David
LandOfFree
Apparatus for an air impingement heat sink using secondary flow does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for an air impingement heat sink using secondary flow , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for an air impingement heat sink using secondary flow will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-21873