US 12,281,841 B2
Refrigerator
Taeyun Jung, Suwon-si (KR); Donghwa Kim, Suwon-si (KR); and Younggon Park, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jul. 7, 2022, as Appl. No. 17/859,698.
Application 17/859,698 is a continuation of application No. PCT/KR2022/008138, filed on Jun. 9, 2022.
Claims priority of application No. 10-2021-0121296 (KR), filed on Sep. 10, 2021; and application No. 10-2022-0002008 (KR), filed on Jan. 6, 2022.
Prior Publication US 2023/0079270 A1, Mar. 16, 2023
Int. Cl. F25D 23/06 (2006.01)
CPC F25D 23/063 (2013.01) [F25D 23/069 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A refrigerator comprising:
a first inner case comprising a first upper plate, a first lower plate, a first left plate, a first right plate, and a first rear plate;
a first storage compartment formed by the first inner case;
a second inner case comprising a second upper plate, a second lower plate, a second left plate, a second right plate, and a second rear plate, and to be coupled to the first inner case;
a second storage compartment formed by the second inner case;
an outer case coupled to an outer side of the first inner case and an outer side of the second inner case to form an exterior of the refrigerator; and
an insulating material provided between the first inner case and the outer case, and between the second inner case and the outer case,
wherein:
one of the first lower plate and the second upper plate comprises;
an extension extending from the one of the first lower plate and the second upper plate, the extension including a first coupler having a first coupling protrusion protruding from the extension; and
a second coupling protrusion protruding from a rear surface of the extension in a direction opposite to a protruding direction of the first coupling protrusion;
an other one of the first lower plate and the second upper plate comprises:
 a second coupler comprising:
a first coupling hole to allow at least a portion of the first coupling protrusion to be inserted thereinto so that the second coupler is coupled to the first coupler; and
a coupling groove into which the second coupling protrusion is inserted to be coupled to the second coupling protrusion; and
the first lower plate is coupled to the second upper plate by coupling the first coupler to the second coupler to prevent the insulating material from leaking between the first coupler and the second coupler.