A thermo-electric defrosting system

F - Mech Eng,Light,Heat,Weapons – 25 – D

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F25D 21/06 (2006.01)

Patent

CA 2618570

A refrigeration unit (40) having a defroster (30) has a refrigeration compartment (44), an evaporator coil (26) having an amount of crystallized water being aggregated thereon from air and a thermo-electric module (32, 46, 48, 50) having a semiconductor material. The thermo-electric module (32, 46, 48, 50) provides heating from a first location of the thermo~electric module (32, 46, 48, 50) and cooling from a second location of the thermo-electric module (32, 46, 48, 50) based on a Peltier effect when a current from a power supply is traversed through the thermo-electric module (32, 46, 48, 50). The heating from a first location heats the evaporator coil (26) to defrost the aggregated amount of crystallized water thereon. The cooling from the second location is communicated to the refrigeration compartment (44).

Selon la présente invention, un module de réfrigération (40) possédant un dégivreur (30) comporte un compartiment de réfrigération (44), une bobine d'évaporateur (26) contenant une certaine quantité d'eau cristallisée regroupée à partir de l'air et un module thermoélectrique (32, 46, 48, 50) pourvu d'une matière semi-conductrice. Ce module thermoélectrique (32, 46, 48, 50) permet de chauffer à partir d'un premier emplacement du module thermoélectrique (32, 46, 48, 50) et de refroidir à partir d'un second emplacement dudit module thermoélectrique (32, 46, 48, 50) en fonction d'un effet de Peltier, lorsqu'un courant émanant d'un bloc d'alimentation est amené à traverser ledit module thermoélectrique (32, 46, 48, 50). Le chauffage provenant d'un premier emplacement fait chauffer la bobine d'évaporateur (26) de manière à dégivrer la quantité regroupée d'eau cristallisée. Ce refroidissement provenant du second emplacement est communiqué au compartiment de réfrigération (44).

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