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Cold Plate for Thermal Conduction Module With Only Peripheral Mounting Bolts, Large Surface Area Fin Inserts and Reduced Water Flow and Thermal Resistances

IP.com Disclosure Number: IPCOM000034896D
Original Publication Date: 1989-May-01
Included in the Prior Art Database: 2005-Jan-27
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Antonetti, VW: AUTHOR [+3]

Abstract

A cold plate is forced against a hat structure of a thermal conduction module (TCM) by a circular ridge protruding from a load distribution plate. The plate sandwiches the cold plate to the hat by peripheral bolts which pass through clearance holes in the plate located around the perimeter. Also contained in the plate are two larger holes for inlet and outlet plumbing fittings for chilled water. The circular ridge is located at a position away from the perimeter of the cold plate and transmits the force of the peripheral bolts to the cold plate and the hat. The conventional center bolts are not used and the cold plate cavity has additional space for an improved fin pattern. Wide channels are machined into the cold plate rather than conventional narrow channels.

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Cold Plate for Thermal Conduction Module With Only Peripheral Mounting Bolts, Large Surface Area Fin Inserts and Reduced Water Flow and Thermal Resistances

A cold plate is forced against a hat structure of a thermal conduction module (TCM) by a circular ridge protruding from a load distribution plate. The plate sandwiches the cold plate to the hat by peripheral bolts which pass through clearance holes in the plate located around the perimeter. Also contained in the plate are two larger holes for inlet and outlet plumbing fittings for chilled water. The circular ridge is located at a position away from the perimeter of the cold plate and transmits the force of the peripheral bolts to the cold plate and the hat. The conventional center bolts are not used and the cold plate cavity has additional space for an improved fin pattern. Wide channels are machined into the cold plate rather than conventional narrow channels. A fin insert is made from shim stock and can be plain fins, louvered fins, offset-strip fins, perforated fins or any other conventional fin structure. The fin insert is thermally attached to the bottom and top surfaces of the wide channel. A combination of using conventional densely packed fins and a load distribution plate results in an overall reduced thermal resistance of the cold plate.

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