Operation control method for a refrigerator in case of a power-s

Details Operation control method for a refrigerator in case of a power-s Operation control method for a refrigerator in case of a power-s

1999-09-13

2000-10-17

Tanner, Harry B.

Refrigeration

Automatic control

Preventing, removing or handling atmospheric condensate

62155, 62156, 62230, F25B 4902

Patent

active

061314005

ABSTRACT:
An operation control method for a refrigerator after a power-supply comeback due to a power-failure that performs a re-operation according to operation information stored before the power-failure. The operation control method includes the steps of: (a) reading stored operation information when power is reapplied to the refrigerator; (b) determining whether the operation information includes a compartment set temperature information and an accumulated information of a compressor operation time; (c) if the compartment set temperature information and the accumulated information of the compressor operation time are found in the step (b), automatically setting an operation mode according to the compartment set temperature information, and detecting a compartment temperature of the refrigerator and an evaporator surface temperature; (d) determining whether the compartment temperature is lower than a predetermined compartment temperature to determine a power failure of a long time, or the evaporator surface temperature is lower than a predetermined surface temperature to determine a power-failure of a long time; (e) if the compartment temperature is lower than the predetermined compartment temperature or the evaporator surface temperature is lower than the predetermined surface temperature in the step (d), accumulating a compressor operation time in addition to the stored compressor operation time; and (f) if the compartment temperature is not lower than the predetermined compartment temperature and the evaporator surface temperature is not lower than the predetermined surface temperature in the step (d), deleting the stored compressor operation time accumulation information, and newly accumulating a compressor operation time.

REFERENCES:
patent: 4299095 (1981-11-01), Cassarino
patent: 5295361 (1994-03-01), Novak et al.
patent: 5363669 (1994-11-01), Janke et al.

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