Air curtain fan driving device and method for a refrigerator

Details Air curtain fan driving device and method for a refrigerator Air curtain fan driving device and method for a refrigerator

1998-12-28

2000-05-09

Tanner, Harry B.

Refrigeration

Automatic control

Preventing, removing or handling atmospheric condensate

62156, 62186, 62256, 62131, F25D 1706

Patent

active

060587229

ABSTRACT:
A reference temperature of the cooler is set which is required to moderate an interior temperature of the refrigerator. During a defrosting mode, if a door is opened, then a control part switches on an air curtain fan if a temperature of a cooler is lower than the reference temperature, or switches it off if it is not lower. The control part switches off the air curtain fan when the door is closed. Meanwhile, during the defrosting mode, if the door is closed, then the control part switches on the air curtain fan if the temperature of the cooler is lower than the reference temperature in a heating state, or switches it off if it is not lower. The air curtain fan is also switched off if it is not in a heating state. Thus, the air curtain fan is driven depending on interior and exterior conditions during a defrosting operation of the refrigerator. Thereby, refrigerating efficiency as well as defrosting efficiency are increased.

REFERENCES:
patent: 2558997 (1951-07-01), Voelker
patent: 4299092 (1981-11-01), Ibrahim
patent: 4327557 (1982-05-01), Clarke et al.
patent: 4379391 (1983-04-01), Rhee
patent: 5228300 (1993-07-01), Shim
patent: 5791152 (1998-08-01), Choi
patent: 5816054 (1998-10-01), Yoo et al.

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