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

Claim 16:
17. 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 being configured to define a space formed by the cell;
a liquid supply configured to supply a liquid to the space;
a heater provided to provide heat to the cell; and
a controller configured to: operate the heater while 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 comprises a first wall forming the second portion of the cell and a second wall extending from the first wall,
the second wall includes a first extension part extending from the first wall in a first horizontal direction and a second extension part extending from the first wall in a second horizontal direction, and
a curvature change rate of an outer line of the first extension part in a horizontal direction with respect to a horizontal cutting plane of the second wall is less than that of an outer line of the second extension part in the horizontal direction, with respect to the horizontal cutting plane of the second wall when the second tray is at an ice making position.