Refrigeration – Using electrical or magnetic effect – Thermoelectric; e.g. – peltier effect
Patent
1981-03-25
1982-05-11
King, Lloyd L.
Refrigeration
Using electrical or magnetic effect
Thermoelectric; e.g., peltier effect
62457, F25B 2102, F25D 308
Patent
active
043286763
ABSTRACT:
A portable, lightweight thermoelectric environmental chamber includes insulative side walls, an insulative bottom and an insulative cover that is hingeably connected to one of the walls. A handle is attached to the upper surface of the cover. A thermoelectric unit includes a thermoelectric heat pumping device disposed between an internal heat exchanger disposed inside the thermal compartment of the environmental chamber and an external heat exchanger disposed outside of the thermal compartment. An external blower continuously forces outside air along the surface of the external heat exchanger when the thermoelectric environmental chamber is turned on. An internal blower is controlled by a momentary switch that turns the internal blower on when the cover is closed. A shroud encloses the internal blower and guides air in close proximity to the internal heat exchanger and recirculates air in the compartment to maintain a uniform temperature in the thermal compartment when the cover is closed. A port is provided in one of the walls to allow electrical communication or other types of communication between a device or substance being thermally tested in the thermal compartment and a location outside of the environmental chamber.
REFERENCES:
patent: 3194023 (1965-07-01), Sudmeier
patent: 3307365 (1967-03-01), Townsend
patent: 3733836 (1973-05-01), Corini
patent: 4007600 (1977-02-01), Simms
King Lloyd L.
Koolatron Industries, Ltd.
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