Solid-state heating and cooling apparatus

Refrigeration – Using electrical or magnetic effect – Thermoelectric; e.g. – peltier effect

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Details

F25B 2102

Patent

active

044635699

ABSTRACT:
A solid state heating and cooling apparatus for controlling the temperature of a room includes a plurality of series-coupled thermoelectric modules having first and second sides which become hot and cold, respectively, when current passes through said modules in a first direction and which become cold and hot, respectively, when current passes through in a second opposite direction. First and second heat sinks are placed proximate to the first and second sides to be either heated or cooled thereby. A first inlet duct having a fan therein cooperates with a first outlet duct so as to cause air to flow from the room whose temperature is to be controlled past the first heat sink and back into the room. A second inlet duct has a fan positioned therein so as to cause waste air to flow past the second heat sink and through a second outlet duct to an area apart from the room whose temperature is to be controlled. A polarity reversal circuit is provided for changing the direction of the current flowing through the thermoelectric modules to switch from a heating mode to a cooling mode or from a cooling mode to a heating mode and the polarity reversal circuit may be either manual or automatic.

REFERENCES:
patent: 2949014 (1960-08-01), Belton, Jr. et al.
patent: 3330970 (1967-07-01), Wennerberg et al.
patent: 3552133 (1971-01-01), Lukomsky
patent: 3557565 (1971-01-01), Kissel

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