Patent ID: 9528752
Filing Date: 2016-12-27
CPC Classification: F25D

Claim Text:
1. A refrigerator comprising: a refrigerating chamber; a refrigerating chamber door for opening and closing the refrigerating chamber; a freezing chamber; a freezing chamber door for opening and closing the freezing chamber; a storage chamber for maintaining a pressure lower than atmospheric pressure, the storage chamber provided separately in a lower end position of the refrigerating chamber; a vacuum pump for maintaining the interior of the storage chamber to maintain the pressure therein lower than the atmospheric pressure, the vacuum pump being installed in the storage chamber; an input unit for transferring a mode selected by a user to a controller so that the controller actuates the vacuum pump according to the selected mode; a display unit for displaying food items to be stored within the storage chamber; wherein a pressure within the storage chamber is selectively maintained according to one of a first mode and a second mode, and the pressure in each mode is maintained differently, wherein food items with a higher dryness (Δ%) are displayed in the first mode, food items with a lower dryness (Δ%) are displayed in the second mode, and the pressure in the first mode is maintained lower than in the second mode, wherein the display unit displays the food items, wherein the respective pressure of the first and second modes are pre-set corresponding to a measured dryness of the food items disposed therein, and wherein the measured dryness (Δ%) is as follows: dryness (Δ%)={(weight of initial sample)−(weight of sample after predetermined period of time)}/weight of initial sample×100.