A thermal storage container is coupled to a pump for circulating cooled liquid from the thermal storage container in at least one of two circuits. One circuit includes a heat exchanger coupled to the fresh food evaporator for assisting in cooling the fresh food section of the refrigerator or for chilling the liquid. Another circuit includes a sub-cooler between the condenser and the evaporator for cooling the output from the condenser before entering the evaporator, hereby increasing the efficiency of the system. A three-way valve is coupled from the output pump to couple the stored coolant selectively to one or the other or both of the coolant circuits.

A thermal storage container is coupled to a pump for circulating cooled liquid from the thermal storage container in at least one of two circuits. One circuit includes a heat exchanger coupled to the fresh food evaporator for assisting in cooling the fresh food section of the refrigerator or for chilling the liquid. Another circuit includes a sub-cooler between the condenser and the evaporator for cooling the output from the condenser before entering the evaporator, hereby increasing the efficiency of the system. A three-way valve is coupled from the output pump to couple the stored coolant selectively to one or the other or both of the coolant circuits.

A system and method for non-face-to-face storing a commodity are provided. The system for non-face-to-face storing a commodity according to one embodiment of the present invention comprises: a server; a freezer with an openable door, configured to maintain the inside at a first temperature; a refrigerator with an openable door, configured to maintain the inside at a second temperature; a storage box with an openable a door, the storage box being different from the freezer and the refrigerator; a scanner configured to identify a commodity that a delivery person delivers to a user; an identifier configured to verify that at least one of a delivery person identification code of the delivery person and a user identification code of the user has been identified; a communicator configured to communicate with the server; and a controller configured to control the opening and closing of the door of the freezer, the door of the refrigerator, and the door of the storage box.

A system and method for non-face-to-face storing a commodity are provided. The system for non-face-to-face storing a commodity according to one embodiment of the present invention comprises: a server; a freezer with an openable door, configured to maintain the inside at a first temperature; a refrigerator with an openable door, configured to maintain the inside at a second temperature; a storage box with an openable a door, the storage box being different from the freezer and the refrigerator; a scanner configured to identify a commodity that a delivery person delivers to a user; an identifier configured to verify that at least one of a delivery person identification code of the delivery person and a user identification code of the user has been identified; a communicator configured to communicate with the server; and a controller configured to control the opening and closing of the door of the freezer, the door of the refrigerator, and the door of the storage box.

A multitemperature storage system includes a storage structure including a plurality of upright members, a plurality of horizontal members supported by the upright members and forming a grid pattern defining a plurality of grid cells and allowing containers to be arranged in stacks beneath the grid cells defined by the grid pattern, and a track structure on top of the horizontal members, the track structure being configured to allow a load-handling device to move across the storage structure to retrieve a container from a stack; and including temperature-control to maintain a first-temperature region within the storage structure at a first temperature and a second-temperature region within the storage structure at a second temperature.

A multitemperature storage system includes a storage structure including a plurality of upright members, a plurality of horizontal members supported by the upright members and forming a grid pattern defining a plurality of grid cells and allowing containers to be arranged in stacks beneath the grid cells defined by the grid pattern, and a track structure on top of the horizontal members, the track structure being configured to allow a load-handling device to move across the storage structure to retrieve a container from a stack; and including temperature-control to maintain a first-temperature region within the storage structure at a first temperature and a second-temperature region within the storage structure at a second temperature.

A multitemperature storage system is provided. The system includes a storage structure having a plurality of upright members, a plurality of horizontal members supported by the upright members and forming a grid pattern defining a plurality of grid cells and allowing containers to be arranged in stacks beneath the grid cells defined by the grid pattern, and a track structure on top of the horizontal members, the track structure being configured to allow a load-handling device to move across the storage structure to retrieve a container from a stack; and temperature-control means configured to maintain a first-temperature region within the storage structure at a first temperature and a second-temperature region within the storage structure at a second temperature.

A multitemperature storage system is provided. The system includes a storage structure having a plurality of upright members, a plurality of horizontal members supported by the upright members and forming a grid pattern defining a plurality of grid cells and allowing containers to be arranged in stacks beneath the grid cells defined by the grid pattern, and a track structure on top of the horizontal members, the track structure being configured to allow a load-handling device to move across the storage structure to retrieve a container from a stack; and temperature-control means configured to maintain a first-temperature region within the storage structure at a first temperature and a second-temperature region within the storage structure at a second temperature.

A refrigerator includes a refrigerating compartment, a freezing compartment partitioned from the refrigerating compartment, a freezing unit mounted at one side of an inside of the freezing compartment, and the freezing unit including a cooling case defining a cooling compartment partitioned from the freezing compartment and a cooling drawer insertable into the cooling compartment. A guide duct is mounted on a ceiling of the cooling case and communicates with a grille, and the guide duct includes a bottom portion having a plurality of cold air discharge holes, where at least a portion of the bottom portion is spaced apart from the top portion at a lower side of the top portion to define a passage for guiding the cold air into the cooling compartment.

A refrigerator includes a refrigerating compartment, a freezing compartment partitioned from the refrigerating compartment, a freezing unit mounted at one side of an inside of the freezing compartment, and the freezing unit including a cooling case defining a cooling compartment partitioned from the freezing compartment and a cooling drawer insertable into the cooling compartment. A guide duct is mounted on a ceiling of the cooling case and communicates with a grille, and the guide duct includes a bottom portion having a plurality of cold air discharge holes, where at least a portion of the bottom portion is spaced apart from the top portion at a lower side of the top portion to define a passage for guiding the cold air into the cooling compartment.