Browse Prior Art Database

Technique for Attaching Liquid-Filled Cooling Bags to Circuit Boards

IP.com Disclosure Number: IPCOM000036334D
Original Publication Date: 1989-Sep-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Burns, SB: AUTHOR [+3]

Abstract

Disclosed is a technique for attaching liquid-filled cooling bags to electronic circuit boards using spring-loaded metal brackets.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

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Technique for Attaching Liquid-Filled Cooling Bags to Circuit Boards

Disclosed is a technique for attaching liquid-filled cooling bags to electronic circuit boards using spring-loaded metal brackets.

Liquid-filled bags can enhance cooling of electronic components by providing a path through which to conduct heat away from the components. These bags must be held in intimate contact with the electronic components to prevent high resistance interfaces. One technique for achieving this intimate contact is by clamping the bag between a metal bracket and the circuit board.

The metal bracket should be a "U-shaped" channel, with the legs of the U long enough to extend across the circuit board. The open end of the U should be narrower than the closed end. The metal should be made of a material such as steel, which will undergo bending at elevated temperatures without permanent deformation.

A liquid-filled bag would be bonded to the inside of each leg of the U bracket. Installation of the bracket and bags would occur by spreading the legs of the bracket enough to clear the components on the circuit board and slipping the circuit board between the bags.

The benefits of this technique for attaching the liquid-filled bags are:

1. The metal bracket provides additional

conduction path.

2. Screws or clamps are not required.

3. The base of the U-channel provides a surface

for attaching the heat sink.

4. The bracket and bags form a unit which is

easily installed or removed.

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