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Apparatus for a Thermal Tunnel Using Internal and External Fans

IP.com Disclosure Number: IPCOM000029158D
Publication Date: 2004-Jun-16
Document File: 3 page(s) / 52K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method that creates a thermal tunnel to direct fan airflow, and separate fresh air and exhaust air. Benefits include preventing heated air from being re-circulated within the system.

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Apparatus for a Thermal Tunnel Using Internal and External Fans

Disclosed is a method that creates a thermal tunnel to direct fan airflow, and separate fresh air and exhaust air. Benefits include preventing heated air from being re-circulated within the system.

Background

Currently, the thermal management of CPUs and other heat-generating components is difficult. External fans blow air indiscriminately into the case, reducing cooling efficiency and requiring the use of larger, more expensive fans. In addition, fans are usually mounted directly to the heat sink within the system case, causing heated air to be re-circulated with the cooling air.

General Description

The disclosed method creates a thermal tunnel (i.e. ductwork) that directs and concentrates airflow, separating fresh air from exhaust air and preventing heated air from being re-circulated within the system. The disclosed method also reduces junction temperatures. The ductwork can be lengthened to include multiple components or areas of the board. The ductwork can also be designed to accommodate an internal or external fan, or to work with both types of fans simultaneously. (see Figures 1 and 2).

Advantages

The disclosed method separates fresh air from exhaust air, and prevents heated air from being re-circulated within the system.

Fig. 1

Fig. 2

Disclosed anonymously