US 11,874,043 B2
Refrigerator
Donghoon Lee, Seoul (KR); Wookyong Lee, Seoul (KR); Seungseob Yeom, Seoul (KR); Donghoon Lee, Seoul (KR); Yongjun Bae, Seoul (KR); Sunggyun Son, Seoul (KR); and Chongyoung Park, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/282,122
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Oct. 1, 2019, PCT No. PCT/KR2019/012884
§ 371(c)(1), (2) Date Apr. 1, 2021,
PCT Pub. No. WO2020/071771, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 10-2018-0117785 (KR), filed on Oct. 2, 2018; application No. 10-2018-0117819 (KR), filed on Oct. 2, 2018; application No. 10-2018-0117821 (KR), filed on Oct. 2, 2018; application No. 10-2018-0117822 (KR), filed on Oct. 2, 2018; application No. 10-2018-0142117 (KR), filed on Nov. 16, 2018; application No. 10-2019-0081688 (KR), filed on Jul. 6, 2019; and application No. 10-2019-0108884 (KR), filed on Sep. 3, 2019.
Prior Publication US 2021/0396439 A1, Dec. 23, 2021
Int. Cl. F25C 1/18 (2006.01); F25C 1/25 (2018.01); F25C 1/24 (2018.01); F25C 5/08 (2006.01)
CPC F25C 1/18 (2013.01) [F25C 1/24 (2013.01); F25C 1/25 (2018.01); F25C 5/08 (2013.01); F25C 2400/08 (2013.01); F25C 2400/10 (2013.01); F25C 2600/04 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A refrigerator comprising:
a storage chamber;
a first ice maker comprising a tray assembly to define a cell that forms a space in which liquid is to phase-change into ice;
a second ice maker disposed in an ice making compartment that is a space partitioned from the storage chamber;
a cooler configured to supply cold into the storage chamber and the ice making compartment;
an ice bin configured to store ice provided by the second ice maker;
a liquid supply configured to supply the liquid to the space;
a heater configured to supply heat into the cell; and
a controller configured to control the heater
operate the heater while the ice is being formed so that gas bubbles dissolved in the liquid within the cell move from a first portion of the space where the liquid that has phase-changed into the ice to a second portion of the space where the liquid is in a fluid state, and
control the heater to:
increase the heating amount of the heater based on an increase of a heat transfer amount between the cold within the storage chamber and the liquid of the cell, and decrease the heating amount of the heater based on a decrease of the heat transfer amount between the cold within the storage chamber and the liquid of the cell so as to maintain an ice making rate of the liquid within the cell within a predetermined range that is less than an ice making rate when the ice making process is performed while the heater is turned off.