Abstract: A refrigerator according to the present invention includes a storage chamber configured to store food, a cold air supply part configured to supply cold air to the storage chamber, a tray configured to form an ice making cell being a space in which water is phase-changed into ice by the cold air, a temperature sensor configured to sense the temperature of water or ice in the ice making cell, a heater configured to provide heat to the tray, and a controller configured to control the heater, in which the controller controls the heater to be turned on so that ice can be easily separated from the tray when the ice making is completed, and the controller controls the heater to be turned off when a temperature sensed by the temperature sensor reaches a first turn-off reference temperature greater than zero after a first reference time elapses in a state in which the heater is turned on.

Abstract: The refrigerator of the present invention comprises: a storage compartment where food is stored; a cold air supply means for supplying cold air to the storage compartment; a first tray forming a part of an ice making cell which is a space where water phase-changes into ice by the cold air; a second tray which forms another part of the ice making cell and which can be brought into contact with the first tray during an ice making process, and which is connected to a driving unit so as to be spaced apart from the first tray during an ice separating process; a heater positioned adjacent to at least one of the first tray and the second tray; an ice bin for storing ice dropped from the ice making cell; a full ice level sensing means for sensing a full ice level of the ice bin; and a control unit for controlling the heater and the driving unit.

Abstract: A refrigerator includes a storage chamber, a cold air supply which supplies cold air to the storage chamber, a first tray which forms a part of an ice making cell that is a space where water is phase-changed into ice by the cold air, a second tray which forms another part of the ice making cell and which may come into contact with the first tray during an ice making process and may be separated from the first tray during an ice transfer process, a heater adjacent to at least one of the first tray or the second tray, a sensor which determines the position of the second tray in a movement process of the second tray, and a control unit which controls the heater.

Abstract: A refrigerator according 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 and capable of moving relative to the first tray, a driver configured to move the second tray, a temperature sensor configured to sense the temperature of water or ice in the ice making cell, and a controller configured to control the driver, in which when it is determined that the water in the ice making cell is in a supercooled state based on the temperature measured by the tray temperature sensor, the controller may operate the driver to move the second tray.

Abstract: A method for controlling a refrigerator of the present invention includes turning on the heater when ice making is completed; moving the second tray to a standby position in a forward direction when the movement condition of the second tray is satisfied; turning off the heater when a turn-off condition of the heater is satisfied after the second tray moves to the standby position in the forward direction; determining whether the heater is turned off and a predetermined time has elapsed; and moving the second tray to the ice separation position in the forward direction when it is determined that the predetermined time has elapsed.

Abstract: A refrigerator according to the present invention comprises: a storage space in which food is stored; a cooler for supplying cold to the storage space; a first tray assembly constituting a part of an icing cell which is the space in which water is phase-changed to ice by the cold; a second tray assembly constituting another part of the icing cell; a heater located to be adjacent to the first tray assembly and/or the second tray assembly; and a control unit for controlling the heater, wherein the control unit performs controls so that the heater is turned on in at least a partial period while the cooler supplies the cold, and thus air bubbles disintegrating in the water inside the icing cell move to liquid-phase water from a part where ice is generated, thereby enabling transparent ice to be generated, and the degree of cold transfer, which is the amount of cold of the cooler is to be transferred, is different in the first tray assembly and the second tray assembly.

Abstract: A refrigerator includes a storage chamber, a cooler configured to supply cold air, a first tray, a second tray, a driver configured to move the second tray with respect to the first tray, a heater provided adjacent to at least one of the first tray or the second tray, and a controller configured to control the heater and the driver. The controller controls the heater to be turned on during ice making to make transparent ice.

Abstract: 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, 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, and a second edge disposed at the end of the bar. The second tray assembly includes a first coupling part connected to the pusher and a second coupling part connected to the driver. The controller control to move at least one of the pusher and the second tray assembly to change a relative position between the pusher and the second tray assembly.

Abstract: The present invention relates to a refrigerator. The refrigerator of the present invention includes 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, 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, and a second edge disposed at the end of the bar; and a pusher link having a connection part connected to the pusher. 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.

Abstract: A refrigerator includes a storage space, a cooler, a first tray constituting a part of a cell which is the space in which water is phase-changed to ice by the cold, a second tray, which constitutes another part of the cell, a water supply valve to adjust the flow of water to be supplied to the icing cell, a water supply amount detection unit or sensor, and a controller configured to control the supply valve.

Abstract: A refrigerator according to the present invention comprises: a storage chamber for storing food; a cold air supply means for supplying cold air to the storage chamber; a first tray forming one part of an ice making cell which is a space in which water is phase-changed into ice by means of the cold air; a second tray forming the other part of the ice making cell and connected to a driving unit so as to come into contact with the first tray during an ice making process and be separated from the first tray in an ice separating process; a heater positioned adjacent to the first tray and/or the second tray; an operation unit for inputting a start command of a test mode; and a control unit for controlling the heater and/or the driving unit in the test mode, wherein, if the start command of the test mode is input during the operation of the heater, the control unit turns the heater off and operates the driving unit such that the second tray moves.

Abstract: A refrigerator includes a cabinet including a refrigerating compartment and an evaporation chamber, a first door, a housing in the first door, an ice making room defining a cool air inflow hole and a cool air discharge hole, a chiller room defining a cool air discharge hole, a second door connected to the first door, a partition wall defining the ice making room, the chiller room, and a communication hole, a damper opening and closing the communication hole, a cool air supply duct connecting an outlet of the evaporation chamber and the cool air inflow hole to supply cool air of the evaporation chamber to the ice making room, and a cool air return duct having a first inlet connected to the cool air discharge hole of the ice making chamber and a second inlet connected to the cool air discharge hole of the chiller room.

Abstract: An ice maker includes an ice tray, an ejector configured to rotate with respect to the ice tray and cause rotation of ice pieces, and a motor configured to drive the ejector to rotate relative to the ice tray. The ice tray includes a first guide rib located at a lower portion of the ice tray and configured to exchange heat with cool air supplied from a cool air inlet, and a second guide rib located at the lower portion of the ice tray and arranged at a center region of the lower portion of the ice tray. The ice tray defines a first area including the first guide rib, and a second area including both of the first and second guide ribs, where the first area of the ice tray is located closer to the cool air inlet than the second area.

Abstract: A control method of a refrigerator includes: determining whether a first temperature of a refrigerating compartment satisfies a first temperature condition; based the first temperature satisfying the first temperature condition, determining whether a second temperature of a freezing compartment satisfies a second temperature condition; based on the second temperature satisfying the second temperature condition, determining (i) whether a third temperature of an ice making compartment satisfies a third temperature condition and (ii) whether a driving time for ice making has passed; maintaining operation of a compressor while determining (i) whether the second temperature satisfies the second temperature condition, (ii) whether the third temperature satisfies the third temperature condition, and (iii) whether the driving time has passed; and stopping operation of the compressor based on at least one of (i) a determination that the third temperature satisfies the third temperature condition or (ii) a determinatio

Abstract: An ice maker includes an ice tray, a motor configured to rotate with respect to the ice tray, an ejector configured to cause rotation of an ice piece, the ejector including a rotary shaft and a protrusion pin, a heater configured to selectively supply heat to the ice tray, and a first sensor unit configured to detect a rotation angle of the protrusion pin about an axis of the rotary shaft. The first sensor unit is further configured to, before discharge of the ice piece from the ice tray, detect whether the protrusion pin has rotated by a predetermined angle about the axis of the rotary shaft, and the heater is further configured to be turned off based on the first sensor unit detecting that the protrusion pin has rotated by the predetermined angle.

Abstract: An ice maker includes an ice tray, a motor configured to rotate with respect to the ice tray, an ejector configured to cause rotation of an ice piece, the ejector including a rotary shaft and a protrusion pin, a heater configured to selectively supply heat to the ice tray, and a first sensor unit configured to detect a rotation angle of the protrusion pin about an axis of the rotary shaft. The first sensor unit is further configured to, before discharge of the ice piece from the ice tray, detect whether the protrusion pin has rotated by a predetermined angle about the axis of the rotary shaft, and the heater is further configured to be turned off based on the first sensor unit detecting that the protrusion pin has rotated by the predetermined angle.

Abstract: An ice maker includes an ice tray configured to receive water, where the ice tray includes a plurality of partition ribs that partition an inner space of the ice tray into a plurality of cells, an ejector that is configured to rotate relative to the ice tray, that is configured to cause rotation of ice pieces in a rotation direction relative to the ice tray, and that is configured to discharge the ice pieces from the ice tray, and a motor configured to drive the ejector to rotate in a first direction and a second direction opposite to the first direction. The ice tray further includes a protrusion portion that is located at each cell, that protrudes from a lower surface of each cell, and that extends along the lower surface of each cell in a direction corresponding to the rotation direction of the ice pieces relative to the ice tray.

Abstract: A control method of a refrigerator includes: determining whether a first temperature of a refrigerating compartment satisfies a first temperature condition; based the first temperature satisfying the first temperature condition, determining whether a second temperature of a freezing compartment satisfies a second temperature condition; based on the second temperature satisfying the second temperature condition, determining (i) whether a third temperature of an ice making compartment satisfies a third temperature condition and (ii) whether a driving time for ice making has passed; maintaining operation of a compressor while determining (i) whether the second temperature satisfies the second temperature condition, (ii) whether the third temperature satisfies the third temperature condition, and (iii) whether the driving time has passed; and stopping operation of the compressor based on at least one of (i) a determination that the third temperature satisfies the third temperature condition or (ii) a determinatio

Abstract: A refrigerator includes a cabinet, a door, an ice making room, a cool air supply duct connecting the evaporation chamber to the ice making room, an ice maker, a cool air guide duct that guides cool air from the ice making room toward the ice maker, and an ice bin below the ice maker to store ice. The ice maker includes an ice tray including cool air guide ribs, and an ice separating guide covering a front surface of the ice tray and a portion of a top surface thereof in which the cool air guide ribs extend from one side of the ice tray toward the other side and are spaced apart from a front surface of a tray body toward a rear surface, and bottom parts of the cool air guide ribs are spaced apart from a bottom part of the cool air guide duct.

Abstract: A refrigerator includes: a cabinet in which a refrigerating compartment is provided; a first door connected to the cabinet to open and close the refrigerating compartment and having an opening; a housing provided in the first door and accessible through the opening therein; an ice making room provided in the housing; a storage room that is provided below the ice making room and maintained at a temperature different from that of the refrigerating compartment; a guide duct provided below the ice making room to guide discharge of ice; a second door connected to the first door; a dispenser disposed on a front surface of the second door; and a discharge duct provided in the second door, wherein, when the second door is closed, the guide duct communicates with the discharge duct, and ice made in the ice making room is discharged to the dispenser.