A refrigerator includes an ice tray, a motor, an ejector including a rotary shaft and a protrusion pin, and a heater for selectively supplying heat to the ice tray. A control method of the refrigerator includes a first step of sensing whether the ejector is rotated to reach a first setup position; a second step of driving the heater and stopping driving of an ice making compartment fan if the first step is satisfied; a third step of determining whether the ejector is rotated to reach a second setup position; and a fourth step of stopping driving of the heater if the third step is satisfied, and wherein the ejector continues to be rotated while the second to fourth steps are implemented.

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.

A refrigeration appliance includes a fresh food compartment for storing food items in a refrigerated environment having a target temperature above 0° C., a freezer compartment for storing food items in a sub-freezing environment having a target temperature below 0° C., a system evaporator for providing a cooling effect to at least one of the fresh food compartment and the freezer compartment, and an ice tray assembly disposed within the fresh food compartment for freezing water into ice pieces. The ice tray assembly includes an ice mold with an upper surface comprising a plurality of cavities formed therein for the ice pieces, a heater disposed on the ice mold and an ice maker refrigerant tube abutting at least one lateral side surface of the ice mold and cooling the ice mold to a temperature below 0° C. via thermal conduction and a cover having a water fill cup integrated into the cover and an outlet aligned with an inlet of the ice mold.

An ice maker includes an ice tray with partitioned spaces for receiving ice-making water, an ejector for ice-separating an ice in the ice tray, a detector unit for detecting at least one of a position of the ejector and a temperature of the ice tray, a control box provided to be opposite to the ice tray and including a printed circuit board and a motor for driving the ejector therein, and a planar heater provided in the ice tray and including a heating element of a metal thin film and an insulating member to wrap the heating element such that the planar heater is pressured by virtue of an instrument provided in the ice tray to be bonded to or in closely contacted with the ice tray.

A device for extraction of a frozen liquid is provided including a tray having a first surface defining at least one cavity and a second surface opposite the first surface. A rod including a protrusion is positioned proximate the at least one cavity. The protrusion passes through the at least one cavity to extract the frozen liquid in response to rotation of the rod.

A manual ice maker and a refrigerator comprising the same are provided. The manual ice maker comprises: an ice making body being a frame formed with an opening, and provided with a first positioning hole in a front wall thereof, a second positioning hole in a rear wall thereof and a first limiting protrusion on an inner surface of the rear wall thereof; an ice making tray provided with a first shaft at a front end thereof and a second shaft at a rear end thereof, the first shaft rotatably supported in and extended out of the first positioning hole, the second shaft rotatably supported in the second positioning hole; and an ice removing assembly. The ice removing assembly comprises: a twisting member provided with a gear; and a press member movable between a first position and a second position in a vertical direction to drive the gear to rotate.

In a method for controlling an ice maker, a motor rotates an ejector finger relative to an ice tray in a first direction and in a second direction opposite the first direction to discharge ice from the ice tray. When an error condition occurs, the ice maker enters a first error mode, during which an ice maker heater is turned on until the temperature of the ice tray reaches a predetermined temperature or until an ice maker heater error correction time elapses. When the ejector finger is at a home position, the motor rotates in the second direction until the ejector finger is not at the home position or for a first predetermined number of steps, whichever occurs first, and then rotates in the first direction until the ejector finger is at the home position.

An ice maker apparatus includes an ice mold having first and second ends spaced apart in a longitudinal direction of the ice mold via opposite, first and second lateral sides. A first recess is formed in the first lateral side of the ice mold. A first thermally insulative cover has a first depression formed therein and is removably attached to the ice mold and disposed adjacent to the first lateral side thereof. The first recess and the first depression collectively define a first passage therebetween. An ice maker evaporator is provided and has a first leg. The first leg is disposed within the first passage.

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.

An ice making device includes an ice making tray, and a drive unit which is structured to turn the ice making tray. In an ice separating operation, the drive unit turns and twists the ice making tray to one side as an ice separation preparatory operation, and then, the drive unit turns and twists the ice making tray to the other side to drop ice pieces from the ice making tray.