FREEZER DEFROST SYSTEM

摘要

The present invention relates to a defroster of a refrigerator. More specifically, the present invention relates to the defroster of the refrigerator capable of by heating the inside of a thermal storage tank installed between a compressor and a condenser with circulated heat of a refrigerant of a refrigerant pipe, which is a defrosting heat source of an evaporator, and efficiently performing defrosting operation by integrally forming a refrigerant pipe and a defrosting heater pipe, which is installed in the evaporator, to be in contact with each other in a row. The refrigerator formed with a refrigeration cycle connecting the compressor, the condenser, an expansion valve, the evaporator with the refrigerant pipe includes the thermal storage tank including a thermal storage substance inside and installed in the refrigerant pipe turning between the condenser and the compressor in order to store refrigerant heat passing through the compressor; the defrosting heater pipe performing heat exchange by being installed on inner one side of the thermal storage tank and recycling the refrigerant defrosted in the evaporator to the thermal storage tank; the evaporator including the defrosting heater pipe of which the outer circumference is integrally connected to the refrigerant pipe installed in the evaporator in the longitudinal direction in the row; and a circulation pump enabling the refrigerant to be circulated in the evaporator and the thermal storage tank by being installed in a circulation path of the defrosting heater pipe.