Methods and apparatus for controlling a refrigerator in normal a

Details Methods and apparatus for controlling a refrigerator in normal a Methods and apparatus for controlling a refrigerator in normal a

1995-11-17

1997-10-21

Tanner, Harry B.

Refrigeration

Automatic control

Of external fluid or means

62131, 62229, F25D 1706

Patent

active

056784163

ABSTRACT:
A refrigerator has separate refrigerating and freezing compartments, an evaporator and fan for each compartment, and a compressor connected to the evaporators. A controller determines whether the refrigerator is in a normal mode or an overload mode, depending upon (i) the ambient temperature in the room where the refrigerator is disposed, (ii) the number of times the refrigerator door is opened per unit time, and (iii) the total time period in which the door is in an open state per unit time. In a normal mode, the compressor and both fans are operated simultaneously under the control of the temperature in the freezing compartment. In an overload mode, the two fans are operated independently, under the control of the respective temperatures in the freezing and refrigerating compartments.

REFERENCES:
patent: 5224355 (1993-07-01), So et al.
patent: 5255530 (1993-10-01), Janke
patent: 5263332 (1993-11-01), Park

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