US 12,135,162 B2
Refrigerator
Woojin Jeon, Seoul (KR); and Myeongseong Park, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jul. 21, 2023, as Appl. No. 18/224,923.
Application 18/224,923 is a continuation of application No. 17/508,247, filed on Oct. 22, 2021, granted, now 11,732,952.
Claims priority of application No. 10-2020-0138266 (KR), filed on Oct. 23, 2020.
Prior Publication US 2023/0358461 A1, Nov. 9, 2023
Int. Cl. F25D 23/02 (2006.01)
CPC F25D 23/025 (2013.01) [F25D 2323/023 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A refrigerator comprising:
a cabinet that defines a storage space;
a main door rotatably coupled to the cabinet and configured to open and close at least a portion of the storage space, an opening being defined through the main door in a front-rear direction;
a sub-door rotatably disposed at a front side of the main door and configured to open and close the opening of the main door;
a heat insulating material injected into the sub-door;
a locking member that protrudes from the sub-door to the main door and is configured to couple to the main door;
an operation member that is disposed below the locking member and that protrudes downward relative to a lower portion of the sub-door, the operation member being configured to be operated by a user;
a connection member that connects the operation member to the locking member and enables the locking member to operate based on the user operating the operation member; and
a connection member case that is disposed in the heat insulating material inside the sub-door and defines an internal space that accommodates the connection member,
wherein the connection member case comprises a reinforcement part that extends along the connection member case, the reinforcement part extending from an upper end of the connection member case to a lower end of the connection member case, and
wherein the reinforcement part is in contact with the heat insulating material and configured to restrict the connection member case from being deformed by pressure generated in a process of injecting the heat insulating material into the sub-door.