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Thermoelectric Module with Uneven Height Couples for Cooling Non-Uniform Spreaders

IP.com Disclosure Number: IPCOM000022010D
Publication Date: 2004-Feb-18
Document File: 2 page(s) / 92K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method that uses a thermoelectric module (TEC) with couples that have different heights; the TEC is attached to a pyramidal base heat sink and a solid metal spreading plate. Benefits include a lower cost solution compared to the current state of the art.

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Thermoelectric Module with Uneven Height Couples for Cooling Non-Uniform Spreaders

Disclosed is a method that uses a thermoelectric module (TEC) with couples that have different heights; the TEC is attached to a pyramidal base heat sink and a solid metal spreading plate. Benefits include a lower cost solution compared to the current state of the art.

Background

The following are current strategies for cooling processors:

§         TEC+VC. This is a high-cost solution that is limited by the vapor chambers (VC) footprint area, and therefore has a limited COP.

§         Closed Pumped Liquid cooling. This solution uses a water pump which is susceptible to leaking and freezing. In addition, the system requires a remote volume for the heat exchanger.

§         Vapor Compression system. This solution is costly and often unreliable. In addition, it requires a remote volume for the condenser.

General Description

The disclosed method uses a solid metal spreading plate cooled by a TEC, fins, and an active feedback control device. The solid metal base serves to spread heat to the TEC. Figure 1 shows the cooling solution composed of the following: a solid metal base in thermal contact with the heat source, thermoelectric elements attached to the upper part of the solid metal, and thin pyramidal base fins attached to the thermoelectric couples. The TEC contains couples with different heights (all elements form a pyramid) attached to a pyramidal base heat sink. The disclosed method enables different temperatur...