Patent ID: 11874044
Assignee: LG ELECTRONICS INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 11:
12. A refrigerator comprising:
a storage chamber;
a cold air supply configured to supply cold air to the storage chamber; and
an ice maker including:
a first tray having a first portion of a cell;
a second tray provided with a second portion of the cell, the first portion of the cell and the second portion of the cell being configured to define a space formed by the cell to receive a liquid to be phase-changed into ice; and
a heater positioned adjacent to at least one of the first or second trays,

wherein, while the cold air supply is capable of supplying the cold air to at least one of the first tray or the second tray to make ice, the heater is driven to supply heat to the space, and
wherein die heater, when capable of being turned on to supply heat to the space while the ice is being formed operates to:
supply a first amount of heat during a first period when the liquid in the space is capable of being phase-changed into the ice in a section of the cell,
supply a second amount of heat during a second period, after the first period, when the liquid in the space is capable of being phase-changed another section of the space, and
supply a third amount of heat during a third period, after the first and second periods, when the liquid in the space is capable of being phase-changed into the ice in further another section of the cell.