Patent ID: 11920846
Assignee: LG ELECTRONICS INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A refrigerator comprising: an ice maker comprising:
a first tray having a first portion of a cell;
a second tray having a second portion of the cell, the first portion and the second portion of the cell being configured to define a space of the cell to receive a liquid to be phase-changed to form ice;
a liquid supply configured to supply the liquid into the cell;
a heater provided to provide heat to the cell; and
a controller configured to:
move the second tray from an ice making position to an ice separation position for an ice separation process to separate the ice from the cell after completion of an ice making process,
operate the heater while the ice is being formed so that gas bubbles dissolved in the liquid within the cell move from a portion of space where the liquid that has phase-changed into the ice to another portion of the space where the liquid is in a fluid state,
wherein:
the second tray includes a first section forming the second portion of the cell and a second section extending from the first section,
the second section includes a first extension part extending from the first section in a first horizontal direction away from a rotational axis of the second tray, and a second extension part extending from the first section in a second horizontal direction toward the rotational axis of the second tray,
each of the first and second extension parts is curved in a horizontal direction,
a curvature change rate of the first extension part in the horizontal direction is different from a curvature change rate of the second extension part in the horizontal direction, and
in a cross-sectional view through a center of the space of the cell and orthogonal to the rotational axis of the second tray, a length of the second extension part in the second horizontal direction is greater than a length of the first extension part in the first horizontal direction.