US 11,725,864 B2
Refrigerator
Kentaro Kan, Yokohama (JP); Hiroshi Nakamura, Yokohama (JP); Makoto Shibuya, Yokohama (JP); Manabu Kikuchi, Yokohama (JP); Ryota Aoki, Yokohama (JP); and Tomohiko Matsuno, Yokohama (JP)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jul. 26, 2021, as Appl. No. 17/385,336.
Claims priority of application No. 2020-136616 (JP), filed on Aug. 13, 2020; and application No. 10-2021-0057605 (KR), filed on May 4, 2021.
Prior Publication US 2022/0049891 A1, Feb. 17, 2022
Int. Cl. F25D 17/04 (2006.01); F25D 17/06 (2006.01)
CPC F25D 17/045 (2013.01) [F25D 17/065 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A refrigerator comprising:
a main cabinet comprising a cooling device configured to generate cold air;
a sub-cabinet detachably connected to the main cabinet;
a cold air relay duct having a cold air flow path that connects the main cabinet to the sub-cabinet to allow the cold air generated by the cooling device to be delivered to the sub-cabinet; and
a heat blocker provided in a portion of the cold air flow path at which the main cabinet and the cold air relay duct are connected and in a portion of the cold air flow path at which the sub-cabinet and the cold air relay duct are connected,
wherein the cold air flow path is formed by an inner space of a cylindrical member formed of a resin material, and
wherein the cylindrical member comprises:
a first cylindrical member forming a main flow path,
a second cylindrical member forming a sub flow path, and
a third cylindrical member forming a relay flow path.