US 11,703,263 B2
Refrigerator and control method therefor
Donghoon Lee, Seoul (KR); Yongjun Bae, Seoul (KR); Seungseob Yeom, Seoul (KR); Donghoon Lee, Seoul (KR); and Wookyong Lee, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/281,977
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Oct. 2, 2019, PCT No. PCT/KR2019/012918
§ 371(c)(1), (2) Date Mar. 31, 2021,
PCT Pub. No. WO2020/071791, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 10-2018-0117820 (KR), filed on Oct. 2, 2018; and application No. 10-2019-0112991 (KR), filed on Sep. 11, 2019.
Prior Publication US 2021/0341203 A1, Nov. 4, 2021
Int. Cl. F25C 1/18 (2006.01); F25C 1/10 (2006.01)
CPC F25C 1/18 (2013.01) [F25C 1/10 (2013.01); F25C 2400/10 (2013.01); F25C 2700/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A refrigerator comprising:
a first tray configured to form a first cell;
a second tray configured to form a second cell, the first and second cells configured to form a space in which liquid is phase-changed into ice;
a driver configured to move the second tray relative to the first tray;
a temperature sensor provided in at least one of the first tray or the second tray; and
a controller configured to control the driver and determine whether the liquid in the space is being supercooled based on temperature sensed by the temperature sensor,
wherein when it is determined that the liquid in the space is being supercooled, the controller controls the driver to move the second tray from a first position to a second position, and controls the driver to return the second tray to the first position.