A refrigerator according to the present disclosure includes a first tray configured to form a portion of an ice making cell, a second tray configured to form another portion of the ice making cell, a tray temperature sensor configured to sense the temperature of the ice making cell, a discharge spark generator disposed around one of the first tray and the second tray and including an electrode, and a controller configured to control the discharge spark generator to generate a spark from the electrode when it is determined that the water in the ice making cell is supercooled based on the temperature measured by the tray temperature sensor.

The refrigerator according to the present invention comprises: a first tray forming a part of ice-making cells which are where water changes phase into ice due to cold air; a second tray forming the other part of the ice-making cells; and a temperature sensor for sensing the temperature of the water or ice in the ice-making cells, wherein the temperature sensor comes into contact with the first tray and/or the second tray.

The refrigerator according to the present invention comprises: a first tray forming a part of ice-making cells which are where water changes phase into ice due to cold air; a second tray forming the other part of the ice-making cells; and a temperature sensor for sensing the temperature of the water or ice in the ice-making cells, wherein the temperature sensor comes into contact with the first tray and/or the second tray.

A refrigerator includes a storage chamber, a cooler configured to supply cold, a tray defining an ice making cell, a liquid supply configured to supply liquid, a temperature sensor, a heater configured to supply heat, and a controller configured to control the heater. The controller controls the heater to be turned on during ice making to make transparent ice. The controller variably controls a heating amount of the heater so that an ice making rate is maintained within a predetermined range. When a defrosting start condition is satisfied in the ice making process, the controller performs a defrosting process.

A refrigerator includes a storage chamber, a cooler configured to supply cold, a tray defining an ice making cell, a liquid supply configured to supply liquid, a temperature sensor, a heater configured to supply heat, and a controller configured to control the heater. The controller controls the heater to be turned on during ice making to make transparent ice. The controller variably controls a heating amount of the heater so that an ice making rate is maintained within a predetermined range. When a defrosting start condition is satisfied in the ice making process, the controller performs a defrosting process.

A refrigerator of the present disclosure can include an ice making cell, a heater configured to supply heat to the ice making cell during an ice making process, and a controller configured to control the heater. The process for controlling the heater includes a basic heating process and an additional heating process that is performed after the basic heating process. In the basic heating process, the controller performs control so that a heating amount of the heater varies according to a mass per unit height of water in the ice making cell. In at least partial section of the additional heating process, the controller controls the heater to operate with a heating amount that is equal to or less than a heating amount of the heater in the basic heating process.

A refrigerator of the present disclosure can include an ice making cell, a heater configured to supply heat to the ice making cell during an ice making process, and a controller configured to control the heater. The process for controlling the heater includes a basic heating process and an additional heating process that is performed after the basic heating process. In the basic heating process, the controller performs control so that a heating amount of the heater varies according to a mass per unit height of water in the ice making cell. In at least partial section of the additional heating process, the controller controls the heater to operate with a heating amount that is equal to or less than a heating amount of the heater in the basic heating process.

The present invention relates to a refrigerator.

The refrigerator of the present invention may include a first tray assembly configured to define one portion of an ice making cell, a second tray assembly configured to define the other portion of the ice making cell, and a heater disposed adjacent to at least one of the first and second tray assemblies, and a controller configured to control the heater.

The refrigerator further include a pusher including a first edge having a surface pressing the ice or at least one of the first and second tray assemblies to easily separate the ice from the tray assemblies, a bar extending from the first edge, a second edge disposed at the end of the bar, and a guide connection part. The controller controls to move at least one of the pusher and the second tray assembly and to change a relative position between the pusher and the second tray assembly. The refrigerator further includes a guide slot providing a movement path of the guide connection part.

An ice making system and method that includes an ice formation cell, an ejector, a panel, and an evaporator tube. The ice formation cell has a first wall and a second wall. The evaporator tube that comprises a first portion and a second portion. The panel is situated between the first portion and the second portion of the evaporator tube. The ejector is situated between the first wall and the second wall, the ejector being configured to remove an ice piece from the first portion or the second portion of the evaporator tube.

An ice making system and method that includes an ice formation cell, an ejector, a panel, and an evaporator tube. The ice formation cell has a first wall and a second wall. The evaporator tube that comprises a first portion and a second portion. The panel is situated between the first portion and the second portion of the evaporator tube. The ejector is situated between the first wall and the second wall, the ejector being configured to remove an ice piece from the first portion or the second portion of the evaporator tube.