Non-freezing storage unit

Abstract

The present invention discloses a non-freezing storage unit including an outer casing with an open front surface, a drawer which can be pulled out through the open front surface of the outer casing, a sensor installed on the outer casing and/or the drawer, a heater installed in the outer casing, and an air layer formed at the front of the drawer to intercept the cool air. The non-freezing storage unit is located in a cooling space to store food in a non-frozen state at a temperature below 0° C.

1 . A non-freezing storage unit, comprising:
 an outer casing with an open front surface;   a drawer which can be pulled out through the open front surface of the outer casing;   a sensor installed on the outer casing and/or the drawer;   a heater installed in the outer casing; and   an air layer formed at the front of the drawer to intercept the cool air,   wherein the non-freezing storage unit is located in a cooling space to store food in a non-frozen state at a temperature below 0° C.   
     
     
         2 . The non-freezing storage unit of  claim 1 , wherein the air layer is separated from a food storage space in the drawer by a protruding portion protruding from the front surface of the drawer. 
     
     
         3 . The non-freezing storage unit of  claim 2 , wherein the protruding portion is formed in the shape of ‘┐’ to be bent from the top to bottom. 
     
     
         4 . The non-freezing storage unit of  claim 1 , wherein the air layer is separated from a food storage space in the drawer by a protruding portion protruding from the bottom surface of the drawer. 
     
     
         5 . The non-freezing storage unit of  claim 1 , wherein the drawer is provided with a sign to prevent the food from being put in a space for defining the air layer. 
     
     
         6 . The non-freezing storage unit of  claim 1 , wherein a thermal insulation material is filled in the inside of the outer casing. 
     
     
         7 . The non-freezing storage unit of  claim 1 , wherein, when the drawer is completely inserted into the outer casing, the bottom surface, the side surfaces and the rear surface of the drawer have a given interval from the outer casing. 
     
     
         8 . The non-freezing storage unit of  claim 1 , wherein the drawer comprises a bulkhead separating the air layer from a food storage space in the drawer. 
     
     
         9 . The non-freezing storage unit of  claim 8 , wherein the bulkhead comprises an opening portion for circulating the air in the air layer and the storage room. 
     
     
         10 . The non-freezing storage unit of  claim 1 , wherein the air layer is separated from a food storage space in the drawer by a plurality of pins protruding from the bottom surface of the drawer. 
     
     
         11 . The non-freezing storage unit of  claim 1 , wherein an opening portion is provided at the front of the bottom surface of the drawer, where the air layer has been formed, such that the air can be introduced from the lower portion of the drawer to the air layer. 
     
     
         12 . The non-freezing storage unit of  claim 11 , wherein a rib is formed around the opening portion in the bottom surface of the drawer.