A refrigeration door system has a defrosting feature. The refrigeration door system also includes a housing defining a refrigerated cavity therein, and a door assembly carried by the housing and providing access to the refrigerated cavity. The door assembly includes a door frame and door coupled to the door frame. The door switches between an open position providing the access to the refrigerated cavity and a closed position where the refrigerated cavity is inaccessible. The door frame includes gasket pieces carried by a first side member and a second side member. The gasket pieces are spaced apart and define an air channel. The refrigeration door system also includes a positive pressure source fluidly coupled to the top member and configured to output air, and a heating device configured to heat the air from the positive pressure source.

A refrigerator appliance includes a cabinet defining a fresh food chamber and a freezer chamber below the fresh food chamber. The refrigerator appliance further includes an ice maker disposed within the cabinet outside of the freezer chamber and proximate to the fresh food chamber. The ice maker is in thermal communication with a freezer evaporator via a fan, a supply duct, and a return duct. The ice maker includes a harvest heater and the freezer evaporator is deactivated while the harvest heater is active.

A refrigerator including a housing mounted at a rear surface of a door to define a storage space of food, a basket disposed inside the housing, a duct extending to the housing from one side of an evaporator to supply cold air generated by the evaporator into the storage space of the housing, and a fan assembly coupled to the duct to allow the cold air to be forcibly supplied.

A refrigerator appliance is generally provided herein. The refrigerator appliance may include a cabinet, an icebox liner, an icemaker, an ice bin, and a circulation duct. The cabinet may define a one or more chilled chambers. The icebox liner may be attached to the cabinet. The icebox liner may define a sub-compartment in which the icemaker may be mounted. The ice bin may define a storage volume within the sub-compartment to receive ice from the icemaker. The circulation duct may extend within the sub-compartment in conductive thermal communication with the icemaker. The circulation duct may define an air passage in fluid communication with one of the chilled chambers and fluid isolation from the storage volume.

A bottom-freezer refrigerator has an ice making compartment formed in a door thereof. Cold air formed in independent spaces of the refrigerating compartment is individually guided to the ice making compartment and the refrigerating compartment, thereby reducing power consumption and noise to be caused as the length of a fluid passage is increased. Foods are refrigerated or frozen and stored in a clean state. The foods in the refrigerating compartment are freshly stored in a high moisture state, and the door is prevented from being forcibly open.

A household cooling appliance has a housing with a receiving space for food, a door for closing the receiving space, wherein the door is movably arranged at the housing, an ice maker with an ice tray, wherein the ice maker with the ice tray is arranged in the door, a first cooling device, which is arranged at the door and by which the ice tray is cooled, wherein the first cooling device comprises a waste heat unit by which the waste heat resulting from the cooling of the ice tray can be dissipated, and a second cooling device, which is arranged at the housing and by which the receiving space is cooled. The waste heat unit of the first cooling device is thermally coupled with the second cooling device such that the waste heat of the waste heat unit can be transferred to the second cooling device.

A refrigerator includes a cabinet that defines a first storage compartment and an opening at a front side of the first storage compartment, an inner door that is configured to open and close at least a portion of the first storage compartment and that defines a second storage compartment configured to store one or more items, an outer door configured to open and close at least a portion of the second storage compartment, a cold air supply unit configured to supply cold air to each of the first storage compartment and the second storage compartment, and a cold air duct located in the first storage compartment and configured to, based on the inner door being oriented in an open position or a closed position, selectively communicate with the cold air supply unit and the second storage compartment.

A refrigerator includes a fresh food compartment and a mullion adjacent the fresh food compartment. The refrigerator further includes an evaporator compartment defining an exterior and an interior and containing an evaporator. The refrigerator also includes a duct in fluid communication with the evaporator compartment at a first end thereof and in communication with a second end adjacent an opening of the fresh food compartment. The duct has a first portion thereof that extends downwardly from the first end and a second portion extending through the mullion.

An ice making system includes an ice making unit that makes ice cubes; a cold air generator unit that cools air inside a cooling duct so as to produce cold air, a cold air circulation unit that supplies the cold air from the cold air generator to the ice making unit and discharges the cold air from the ice making unit to the cold air generator, and a drainage unit that drains defrost water produced from the cooling duct to an outside.

A refrigerator including a housing mounted at a rear surface of a door to define a storage space of food, a basket disposed inside the housing, a duct extending to the housing from one side of an evaporator to supply cold air generated by the evaporator into the storage space of the housing, and a fan assembly coupled to the duct to allow the cold air to be forcibly supplied.