Patent ID: 6072697
Filing Date: 2000-06-06
Classification: H05K

Abstract:
A heat sink apparatus used in an enclosure to dissipate heat generated by electrical and electronic components mounted on a plurality of printed circuit boards positioned in proximity to one another within the enclosure, the printed circuit boards being installed within sidewalls of the enclosure in a stacked configuration, the apparatus comprising:a plurality of heat conductive plates arranged together for said plates to extend between adjacent circuit boards in an interdigitated configuration, each plate including a base with said plate projecting from said base intermediate the ends thereof, and said plates being connected together in a stacked configuration similar to the stacked configuration of printed circuit boards;a plurality of pouches with one pouch being positioned on each side of each printed circuit board to facilitate heat transfer away from said board, each pouch containing a liquid heat sink material for heat generated by said components to be conducted through said pouch to a plate to increase the efficiency of heat transfer away from said components and prevent damage to the components caused by overheating; and,a pouch of liquid heat sink material fitted between said stacked arrangement of plates and at least one of said sidewalls of said enclosure to dissipate the heat to the atmosphere through said sidewall.