A refrigerator for providing an item guide service using artificial intelligence includes an output unit, a sensing unit configured to acquire user identification information for identifying a user, a memory configured to store a collaborative filtering model for determining an item to be used by the user, and a processor configured to recognize the user based on the acquired user identification information, predict an item to be used by the recognized user using the collaborative filtering model and output item identification information for identifying the predicted item through the output unit.

A refrigerator for providing an item guide service using artificial intelligence includes an output unit, a sensing unit configured to acquire user identification information for identifying a user, a memory configured to store a collaborative filtering model for determining an item to be used by the user, and a processor configured to recognize the user based on the acquired user identification information, predict an item to be used by the recognized user using the collaborative filtering model and output item identification information for identifying the predicted item through the output unit.

A method for controlling the temperature and humidity level of the air contained in an enclosed refrigerated space includes the step of measuring the temperature of air in the space. The space includes a cooler having a plurality of cold batteries; at least one coolant temperature sensor at the input and at least one coolant temperature sensor at the output of the cooler; at least one fan with an adjustable, reversible direction of ventilation for producing a variable flow of air through the cooler; at least one temperature sensor upstream of the fan; at least one temperature sensor downstream of the cooler; at least one humidity level sensor upstream of the fan; and at least one humidity level sensor downstream of the cooler. The control is affected by reference values given initially for the temperature and humidity level in the enclosed space.

A method for controlling the temperature and humidity level of the air contained in an enclosed refrigerated space includes the step of measuring the temperature of air in the space. The space includes a cooler having a plurality of cold batteries; at least one coolant temperature sensor at the input and at least one coolant temperature sensor at the output of the cooler; at least one fan with an adjustable, reversible direction of ventilation for producing a variable flow of air through the cooler; at least one temperature sensor upstream of the fan; at least one temperature sensor downstream of the cooler; at least one humidity level sensor upstream of the fan; and at least one humidity level sensor downstream of the cooler. The control is affected by reference values given initially for the temperature and humidity level in the enclosed space.

A refrigerator is provided. The refrigerator includes a first fresh-preservation chamber, one or more adsorption towers, a valve, and an air pump. An air inlet of the air pump is in communication with the first fresh-preservation chamber, an air outlet of the air pump is in communication with an air inlet of each of the one or more adsorption towers through an air inlet channel of the valve, and the air inlet of each of the one or more adsorption towers is in communication with the first fresh-preservation chamber through an air outlet channel of the valve.

Provided is a refrigeration appliance including a storage compartment, a user interface controller, and a user interface arranged in the storage compartment. The user interface is a stacked arrangement including a sensor assembly carrier, a graphic overlay, a light guide, and a printed circuit board (PCB) with a user interface controller and a self-capacitive electrode sensor. The main controller receives a signal from the user interface with self-capacitive electrode sensor and adjusts the temperature of the storage compartment based on the signal from the self-capacitive electrode sensor. A method controlling a refrigeration appliance with a stacked user interface is also provided.

A refrigerator and method utilize a pair of tandem evaporators to provide cooling for both a compartment and an ice making system of a refrigerator. An upstream evaporator in the pair of tandem evaporators provides cooling for a compartment such as a freezer, fresh food, flexible cooling, or quick cooling compartment, while a downstream evaporator is in fluid communication with the upstream evaporator to receive a portion of the air cooled by the upstream evaporator and further cool the received portion for use in cooling one or more components of the ice making system.

A refrigerator and method utilize a pair of tandem evaporators to provide cooling for both a compartment and an ice making system of a refrigerator. An upstream evaporator in the pair of tandem evaporators provides cooling for a compartment such as a freezer, fresh food, flexible cooling, or quick cooling compartment, while a downstream evaporator is in fluid communication with the upstream evaporator to receive a portion of the air cooled by the upstream evaporator and further cool the received portion for use in cooling one or more components of the ice making system.

A method of controlling a refrigerator is disclosed. The method includes: operating a cool air supply means with a predetermined output; a controller determining the output of the cool air supply means based on a current temperature of a storage compartment sensed by a temperature sensor while the cool air supply means operates with the predetermined output; and the controller operating the cool air supply means with the determined output. The controller determines that the output of the cool air supply means is decreased or increased when an absolute value of a difference between a previous temperature and a current temperature of the storage compartment is equal to or greater than a first reference value, and wherein the output of the cool air supply means is decreased or increased again when the absolute value of the difference between a current temperature of the storage compartment sensed again after a predetermined time has elapses and the previous temperature of the storage compartment is equal to or greater than the first reference value.

A method of controlling a refrigerator is disclosed. The method includes: operating a cool air supply means with a predetermined output; a controller determining the output of the cool air supply means based on a current temperature of a storage compartment sensed by a temperature sensor while the cool air supply means operates with the predetermined output; and the controller operating the cool air supply means with the determined output. The controller determines that the output of the cool air supply means is decreased or increased when an absolute value of a difference between a previous temperature and a current temperature of the storage compartment is equal to or greater than a first reference value, and wherein the output of the cool air supply means is decreased or increased again when the absolute value of the difference between a current temperature of the storage compartment sensed again after a predetermined time has elapses and the previous temperature of the storage compartment is equal to or greater than the first reference value.