Thermoelectric refrigerator having improved temperature stabiliz

Details Thermoelectric refrigerator having improved temperature stabiliz Thermoelectric refrigerator having improved temperature stabiliz

1981-07-29

1982-12-07

King, Lloyd L.

Refrigeration

Using electrical or magnetic effect

Thermoelectric; e.g., peltier effect

F25B 2102

Patent

active

043620230

ABSTRACT:
A control system for thermoelectric refrigerators is disclosed. The thermoelectric refrigerator includes at least one thermoelectric element that undergoes a first order change at a predetermined critical temperature. The element functions as a thermoelectric refrigerator element above the critical temperature, but discontinuously ceases to function as a thermoelectric refrigerator element below the critical temperature. One example of such an arrangement includes thermoelectric refrigerator elements which are superconductors. The transition temperature of one of the superconductor elements is selected as the temperature control point of the refrigerator. When the refrigerator attempts to cool below the point, the metals become superconductors losing their ability to perform as a thermoelectric refrigerator. An extremely accurate, first-order control is realized.

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patent: 3229469 (1966-01-01), Katon
patent: 3261721 (1966-07-01), Cornish
patent: 3902923 (1975-09-01), Evans

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