US 12,031,763 B2
Ice maker and refrigerator comprising same
Donghoon Lee, Seoul (KR); Donghoon Lee, Seoul (KR); Wookyong Lee, Seoul (KR); and Sunggyun Son, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/281,983
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Oct. 2, 2019, PCT No. PCT/KR2019/012913
§ 371(c)(1), (2) Date Apr. 1, 2021,
PCT Pub. No. WO2020/071787, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 10-2018-0117807 (KR), filed on Oct. 2, 2018; and application No. 10-2019-0081688 (KR), filed on Jul. 6, 2019.
Prior Publication US 2021/0341208 A1, Nov. 4, 2021
Int. Cl. F25C 5/08 (2006.01); F25C 1/18 (2006.01); F25C 1/24 (2018.01); F25C 5/06 (2006.01)
CPC F25C 5/08 (2013.01) [F25C 1/18 (2013.01); F25C 1/24 (2013.01); F25C 5/06 (2013.01); F25C 2700/04 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An ice maker comprising:
a first tray configured to define a plurality of first portions of a plurality of cells, respectively;
a second tray configured to define a plurality of second portions of the plurality cells, each first and second portion configured to form a space of the cell in which a liquid introduced into the space is phase changed into ice;
a heater configured to supply heat to the plurality of cells in an ice making process so that bubbles dissolved in the water within the plurality of cells moves from a portion, at which the ice is made, toward the water that is in a liquid state to increase transparency of the ice;
a heater case including a seating groove in which the heater is seated; and
a pusher configured to contact the second tray so that ice is separated from the second portions of the second tray in an ice separation process,
wherein the first tray includes a first contact surface, and the second tray includes a second contact surface at an ice making position of the second tray,
wherein the seating groove is recessed away from the first contact surface and the second contact surface, and
wherein the heater case includes an opening through which the pusher passes to contact the second tray and the second tray includes a pressing part that is pressed by the pusher in the ice separation process.