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Impingement Heat Sink

IP.com Disclosure Number: IPCOM000113425D
Original Publication Date: 1994-Aug-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Sammakia, BG: AUTHOR [+3]

Abstract

A high performance impingement flow heat sink design with parallel fins is disclosed. A conventional impingement heat sink with parallel fins (2) attached to a heat sink base (1) is shown in Fig. 1. Enhancements in the heat transfer and pressure drop performance are achieved by use of a heat sink design with fin shapes as shown in Figs. 2 and 3. Fig. 2 shows a central cut out with steps (3) in the impingement area. It also shows inverted steps (4) near the outflow area. Fig. 3 shows a protrusion (5) in the impingement channel area. The protrusion could be located anywhere along the central channel. The enhancements could be obtained by one or more combinations of features (3), (4) and (5). These enhancements over the conventional design in Fig. 1 were confirmed by computational heat transfer and fluid flow simulations.

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Impingement Heat Sink

      A high performance impingement flow heat sink design with
parallel fins is disclosed.  A conventional impingement heat sink
with parallel fins (2) attached to a heat sink base (1) is shown in
Fig. 1.  Enhancements in the heat transfer and pressure drop
performance are achieved by use of a heat sink design with fin shapes
as shown in Figs. 2 and 3.  Fig. 2 shows a central cut out with steps
(3) in the impingement area.  It also shows inverted steps (4) near
the outflow area.  Fig. 3 shows a protrusion (5) in the impingement
channel area.  The protrusion could be located anywhere along the
central channel.  The enhancements could be obtained by one or more
combinations of features (3), (4) and (5).  These enhancements over
the conventional design in Fig. 1 were confirmed by computational
heat transfer and fluid flow simulations.