In an under counter type refrigerator, when a defrosting period arrives, air of a storage compartment may be supplied towards an evaporator to perform a defrosting operation (natural defrosting operation) for removing frost generated on the evaporator, thereby improving defrosting efficiency and reducing power consumption.

A refrigerator appliance, as provided herein, may include a cabinet, a first liner, a second liner, a first fan, a second fan, and a return line. The cabinet may define an evaporator chamber. The first liner may be attached to the cabinet and may define a first chilled chamber having a primary air inlet, a secondary air inlet, and an air outlet. The second liner may be attached to the cabinet and may define a second chilled chamber spaced apart from the first chilled chamber, the second chilled chamber having an air inlet and an air outlet. The return line may extend in fluid communication from the air outlet of the second chilled chamber to the secondary air inlet of the first chilled chamber.

A refrigerator includes a main body that includes an inner case having a storage chamber; a refrigerating chamber discharge duct that divides the storage chamber into a heat exchange chamber and a refrigerating chamber and has refrigerating chamber discharge ports for discharging cold air to the refrigerating chamber. A refrigerating chamber thermoelectric module has a first heat absorbing unit and a first heat dissipating unit, the first heat absorbing unit disposed in the heat exchange chamber. A refrigerating chamber cooling fan circulates cold air in the refrigerating chamber to the heat exchange chamber and the refrigerating chamber; and a refrigerating chamber heat dissipating fan blows external air to the first heat dissipating unit A freezing compartment is disposed in the refrigerating chamber and has a freezing chamber; a freezing compartment thermoelectric module has a second heat absorbing unit and a second heat dissipating unit, the second heating dissipating unit cooling the freezing chamber. An air guide has a channel for guiding cold air from the heat exchange chamber to the second heat dissipating unit; and a freezing compartment damper controls the cold air flowing toward the second heat dissipating unit through the channel.

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 refrigerated merchandiser is provided including a case having a first case section. The first case section defines a first product display area and an air passageway. The air passageway supports a fan and is in fluid communication with an airflow inlet and an airflow outlet. The air passageway is at least partially defined by a refrigeration system including an evaporator. A portion of the air passageway is further defined by a plenum having a stepped profile configured to channel and adjust a direction of an airflow within the first air passageway prior to entering the evaporator. The refrigerated merchandiser may further include a second case section defining a second product display area and including a glass panel. A first airflow portion of an airflow is configured to flow through the airflow inlet toward the evaporator and a second airflow portion is configured to flow through a second airflow outlet via an evaporator bypass channel. The first airflow portion is cooled by the evaporator and the second airflow portion is uncooled by the evaporator. The second airflow portion may be further directed through the second airflow outlet over an exterior of the glass panel of the second case section.

A refrigerator includes a plurality of wall modules and a cooling module. At least one of a rear wall module, a left wall module, or a right wall module includes a supply duct provided to supply cold air produced by the cooling module to a storeroom, and a collecting duct to bring air having exchanged heat from the storeroom back to the cooling module.

A refrigerator a duct arranged to partition an inner space of a storage chamber body into a storage chamber and an air flow channel, wherein the duct has an ejection hole defined therein; a roll-bond evaporator disposed in the air flow channel, wherein the roll-bond evaporator has a top and a bottom, a left end and a right end; a blowing fan configured to draw air from the storage chamber to blow the air into the air flow channel; and a defrost sensor closer to one of the top and bottom than the other of the top and the bottom, wherein said one is closer to the blowing fan than the other, wherein the sensor is closer to one of the left end and the right end than the other of the left end and the right end.

A refrigerator may include a cabinet having a freezer compartment. An evaporator supplies cold air to the freezer compartment and an evaporator cover covers the evaporator. The evaporator cover has a supercooling passage for flowing some of cold air that has exchanged heat through the evaporator to a supercooling compartment of the freezer compartment. A cold air duct directs the other of the cold air that has exchanged heat through the evaporator to a top storage space over the supercooling compartment. A cold air guide device guides cold air in the cold air duct to a bottom storage space under the supercooling compartment.

A refrigerator includes a body, a freezing compartment, a plurality of refrigerating compartments adjacent to the freezing compartment in a horizontal direction and including a first refrigerating compartment and a second refrigerating compartment, a freezing compartment cooling space arranged behind the freezing compartment to communicate with the freezing compartment, a freezing compartment partition configured to partition the freezing compartment and the freezing compartment cooling space and including a freezing compartment duct, an evaporator configured to generate cooling air, a first duct configured to supply the cooling air to the first refrigerating compartment and including a first cooling air inlet, and a second duct configured to supply the cooling air to the second refrigerating compartment through a second cooling air inlet formed on one wall of the freezing compartment duct. The first cooling air inlet and the second cooling air inlet are arranged above the evaporator.

A refrigerator appliance includes a cabinet that defines a chilled chamber. A door is rotatably mounted to the cabinet at a front portion of the chilled chamber. A food storage chamber is defined within the door. The refrigerator appliance also includes a sealed system configured for generating chilled air. The sealed system is in direct fluid communication with the in-door food storage chamber to provide the chilled directly to the in-door food storage chamber.