US 12,031,772 B2
Refrigerator
Seongmin Song, Seoul (KR); and Yunsu Chu, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 17/441,782
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Mar. 23, 2020, PCT No. PCT/KR2020/003932
§ 371(c)(1), (2) Date Sep. 22, 2021,
PCT Pub. No. WO2020/197211, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 10-2019-0033073 (KR), filed on Mar. 22, 2019; and application No. 10-2019-0105698 (KR), filed on Aug. 28, 2019.
Prior Publication US 2022/0170693 A1, Jun. 2, 2022
Int. Cl. F25D 25/02 (2006.01); F25D 11/02 (2006.01); F25D 11/04 (2006.01); F25D 17/06 (2006.01); F25D 23/06 (2006.01); A47B 88/40 (2017.01)
CPC F25D 25/025 (2013.01) [F25D 11/02 (2013.01); F25D 11/04 (2013.01); F25D 23/067 (2013.01); A47B 88/402 (2017.01); A47B 2210/175 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A refrigerator, comprising:
a freezer space that defines a storage space;
a deep freezing portion disposed in the freezer space and defining a deep-freezing space that is partitioned from the storage space, the deep-freezing space being configured to maintain a temperature that is lower than a temperature of the storage space; and
a grill fan assembly disposed in the freezer space and defining a rear surface of the storage space,
wherein the deep freezing portion comprises:
a housing that has an opening at a front surface thereof and defines the deep-freezing space,
a guide rail disposed at a lower part of an outer portion of the housing and extending along a longitudinal direction of the housing,
a guide member configured to move along the guide rail, and
a door coupled to the guide member and configured to open and close a front surface of the housing,
wherein a length of the guide rail is longer than a length of the deep-freezing space,
wherein the deep freezing portion further comprises a rail cover coupled to the guide rail and configured to support the guide member,
wherein the guide rail is recessed from an outer lower surface of the housing and defines an opening at a side of the outer portion of the housing,
wherein a first end of the guide member is coupled to the door and a second end of the guide member is configured to, based on the door closing the front surface of the housing, be disposed behind the deep-freezing space,
wherein the second end of the guide member is configured to, based on the door closing the front surface of the housing, protrude from a rear end of the guide rail, and
wherein the grill fan assembly defines a recess that is configured to accommodate the rear end of the guide rail.