Patent ID: 9234697
Filing Date: 2016-01-12
CPC Classification: F25D

Claim Text:
1. A refrigerator, comprising: a storing space, the storing space having an upper space, a lower space and a separation film located between the upper space and the lower space, the separation film separating upper and lower portions of a container having a stored liquid to prevent or limit the air or heat exchange therebetween, the separation film including a hole through which at least a portion of the container can pass; a cooling circuit having a compressor and an evaporator; a control apparatus, the control apparatus controlling the cooling circuit to cool the lower space to a temperature below a maximum ice crystal formation zone of the stored liquid; a temperature sensing unit sensing temperature of the storing space; a determination unit calculating an accumulated time during which the temperature of the storing space is maintained in a supercooling temperature range below the maximum ice crystal formation zone of the stored liquid after the sensed temperature enters the supercooling temperature range, comparing the accumulated time with a supercooled-state determination time and determining that the stored liquid is in the supercooled state if the accumulated time is equal to or greater than the supercooled-state determination time; and a display visually displaying the supercooled state determined by the determination unit.