Refrigerator

A refrigerator comprising:

• an inner case defining a storage room;
• an outer case coupled to an outer side of the inner case;
• an insulator between the inner case and the outer case;
• an evaporator disposed on a rear inner surface of the inner case;
• and
• a drain device disposed below the evaporator and configured to drain defrost water falling from the evaporator,
• wherein the drain device comprises:
• an upper insulator disposed on the rear inner surface of the inner case;
• a drain housing disposed below the upper insulator and through with the defrost water is drained;
• and
• a middle insulator disposed on a lower portion of the upper insulator, such that the drain housing is between the upper insulator and the middle insulator, the middle insulator comprising a fixing portion to which the drain housing is fixed,
• wherein the fixing portion comprises:
• a rib provided in an upper portion of the middle insulator and a rectangular shape;
• and
• a plurality of fixing protrusions protruding from an upper portion of the rib toward the upper insulator,
• wherein the middle insulator comprises an accommodating portion in which the drain housing is accommodated,
• wherein the fixing portion is provided at an upper edge of the accommodating portion,
• wherein the drain housing has a rectangular trough shape and an upper side of the drain housing opens, and
• wherein the drain housing comprises an extension portion extending from an upper portion of each of four sides of the drain housing to correspond to the rib.

A refrigerator comprising:

• an inner case defining a storage room;
• an outer case coupled to an outer side of the inner case;
• an insulator between the inner case and the outer case;
• an evaporator disposed on a rear inner surface of the inner case;
• and
• a drain device disposed below the evaporator and configured to drain defrost water falling from the evaporator,
• wherein the drain device comprises:
• an upper insulator disposed on the rear inner surface of the inner case;
• a drain housing disposed below the upper insulator and through with the defrost water is drained;
• and
• a middle insulator disposed on a lower portion of the upper insulator, such that the drain housing is between the upper insulator and the middle insulator, the middle insulator comprising a fixing portion to which the drain housing is fixed,
• wherein the fixing portion comprises a fixing rib integrally formed with an upper portion of the middle insulator, the fixing rib having rectangular shape and protruding toward the upper insulator,
• wherein the drain housing has a rectangular trough shape of which an upper side is open, and
• wherein the drain housing comprises a bending portion extending from an upper portion of each of four sides of the drain housing to correspond to the fixing rib.