US 12,326,288 B2
Refrigerator
Donghoon Lee, Seoul (KR); Wookyong Lee, Seoul (KR); Chongyoung Park, Seoul (KR); Donghoon Lee, Seoul (KR); Seungseob Yeom, Seoul (KR); Yongjun Bae, Seoul (KR); and Sunggyun Son, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/282,061
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Oct. 2, 2019, PCT No. PCT/KR2019/012919
§ 371(c)(1), (2) Date Apr. 1, 2021,
PCT Pub. No. WO2020/071792, 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. 10-2019-0114211 (KR), filed on Sep. 17, 2019.
Prior Publication US 2021/0396444 A1, Dec. 23, 2021
Int. Cl. F25C 5/08 (2006.01); F25C 1/18 (2006.01); F25C 1/24 (2018.01); F25C 1/25 (2018.01); F25D 29/00 (2006.01)
CPC F25C 5/08 (2013.01) [F25C 1/24 (2013.01); F25C 1/25 (2018.01); F25D 29/00 (2013.01); F25C 1/18 (2013.01); F25C 2400/06 (2013.01); F25C 2400/10 (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 storage chamber;
a cooler configured to supply cold air into the storage chamber; and
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; and
a heater provided to supply heat to the cell,
wherein the heater is operated while ice is being formed so that gas bubbles dissolved in the liquid within the cell move from a portion of the 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 first tray has a greater degree of cold transfer than the second tray,
wherein the first tray includes:
a first tray part having a first wall extending in a direction away from a center portion of the cell;
a second tray part formed of a material different from that of the first tray part and having a cell wall defining the first portion of the cell and a second wall extended from the cell wall and configured to introduce the cold air or the liquid into the cell; and
a third tray part in contact with the first tray part and the second tray part, wherein the third tray part is formed of a material different from that of the first tray part, and wherein a degree of deformation resistance of the first tray part is greater than that of the third tray part, and
wherein the second wall is received in a space defined by the first wall, and the second wall is in contact with the first wall.