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An Adsorption or Absorption Refrigerator in a Mobile Computing Device

IP.com Disclosure Number: IPCOM000124318D
Publication Date: 2005-Apr-15
Document File: 2 page(s) / 39K

Publishing Venue

The IP.com Prior Art Database

Abstract

Currently, a standard remote heat exchanger, in conjunction with a heat pipe, is used to cool the processor of a mobile computing device.

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An Adsorption or Absorption Refrigerator in a

Mobile

Computing Device

Disclosed is a method that uses an adsorption or absorption refrigerator to cool the processor in a mobile computing device.

Background

Currently, a standard remote heat exchanger, in conjunction with a heat pipe, is used to cool the processor of a mobile computing device.

General Description

The disclosed method uses an absorption or adsorption refrigerator to cool the processor in a mobile computing device. The refrigerator decreases the temperature of a cold plate that is in contact with the processor, bringing the temperature to a level below what would be possible using a standard remote heat exchanger. This allows the thermal solution to dissipate more heat than would be possible without the refrigerator. Two implementations of the disclosed method are shown in Figures 1 and 2. 

In an absorption refrigerator, a multi-component fluid is used. Instead of requiring a compressor to change the state of the refrigerant, heat is used to separate the two components of the fluid.  These separated components have different saturation properties than the original fluid.

In adsorption refrigeration, heat is used to desorb a gas from a solid matrix or surface. 

Advantages

The disclosed method only requires a heat source and is therefore very efficient from an electrical standpoint.

Fig. 1

Fig. 2

Disclosed anonymously