US 12,281,832 B2
Ice maker and method for controlling ice maker
Yonghyun Kim, Seoul (KR); and Jinil Hong, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jan. 12, 2024, as Appl. No. 18/412,066.
Application 18/412,066 is a continuation of application No. 17/984,775, filed on Nov. 10, 2022, granted, now 11,874,050.
Application 17/984,775 is a continuation of application No. 16/685,837, filed on Nov. 15, 2019, granted, now 11,519,649, issued on Dec. 6, 2022.
Claims priority of application No. 10-2018-0142446 (KR), filed on Nov. 19, 2018.
Prior Publication US 2024/0151453 A1, May 9, 2024
Int. Cl. F25C 5/08 (2006.01); F25C 1/04 (2018.01)
CPC F25C 5/08 (2013.01) [F25C 1/04 (2013.01); F25C 2400/14 (2013.01); F25C 2600/04 (2013.01); F25C 2700/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A refrigerator comprising:
a cabinet defining a storage space;
a door configured to open and close at least a portion of the storage space;
an ice maker provided at the storage space; and
a controller configured to control the ice maker,
wherein the ice maker comprises:
a tray body that comprises a plurality of chamber walls that are configured to define a plurality of ice chambers,
a first heater configured to supply heat to the tray body during an ice-making process,
a second heater configured to supply heat to the tray body during an ice-separation process, and
a water supply configured to supply water to the plurality of ice chambers, and wherein the controller is configured to:
control the first heater to output levels of power to thereby supply heat to the tray body during the ice-making process, controlling the first heater to output the levels of power comprising: (i) controlling the first heater to output a first power level for a first time period, (ii) controlling the first heater to output a second power level different from the first power level for a second time period after the first time period, and (iii) controlling the first heater to output a third power level different from the first and second power levels for a third time period after the second time period,
control the first heater to stop outputting the levels of power during a fourth time period, and
control the second heater to start the ice-separating process after the fourth time period.