US 12,287,135 B2
Ice maker and refrigerator
Jinil Hong, Seoul (KR); Yonghyun Kim, Seoul (KR); and Seungjin Choi, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Nov. 15, 2019, as Appl. No. 16/685,829.
Claims priority of application No. 10-2018-0142057 (KR), filed on Nov. 16, 2018.
Prior Publication US 2020/0158405 A1, May 21, 2020
Int. Cl. F25C 1/243 (2018.01); F25C 1/04 (2018.01); F25C 1/10 (2006.01); F25D 11/02 (2006.01)
CPC F25C 1/243 (2013.01) [F25C 1/04 (2013.01); F25C 1/10 (2013.01); F25D 11/02 (2013.01); F25C 2305/0221 (2021.08); F25C 2400/06 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An ice maker comprising:
an upper tray including an upper tray body, the upper tray body defining an upper chamber of an ice chamber, the ice chamber being configured to receive water and form ice therein; and
a lower tray that is configured to rotate relative to the upper tray about a rotational center and includes a lower tray body, the lower tray body defining a lower chamber of the ice chamber, wherein:
a top surface of the lower tray body is configured to contact a bottom surface of the upper tray body,
the upper chamber of the upper tray body and the lower chamber of the lower tray body are configured to define the ice chamber based on the contact between the top surface of the lower tray body and the bottom surface of the upper tray body,
the rotational center is disposed outside of the upper chamber and the lower chamber,
the bottom surface of the upper tray body includes a first surface and a second surface disposed farther from the rotational center than the first surface, and
wherein a first height from the first surface to a top surface of the upper tray in a first direction orthogonal to the top surface of the upper tray is less than a second height from the second surface to the top surface of the upper tray in the first direction.
 
18. A refrigerator comprising:
a storage space; and
an ice maker configured to generate ice,
wherein the ice maker comprises:
an upper tray including an upper tray body, the upper tray body defining an upper chamber of an ice chamber, the ice chamber being configured to receive water and form ice therein, and
a lower tray that is configured to rotate relative to the upper tray about a rotational center and includes a lower tray body, the lower tray body defining a lower chamber of the ice chamber,
wherein a top surface of the lower tray body is configured to contact a bottom surface of the upper tray body,
wherein the upper chamber of the upper tray body and the lower chamber of the lower tray body are configured to define the ice chamber based on the contact between the top surface of the lower tray body and the bottom surface of the upper tray body,
wherein the bottom surface of the upper tray body includes a first surface and a second surface disposed farther from the rotational center than the first surface, and
wherein a first height from the first surface to a top surface of the upper tray in a first direction orthogonal to the top surface of the upper tray is less than a second height from the second surface to the top surface of the upper tray in the first direction.