US 11,851,934 B2
Refrigerator and control method for refrigerator
Jaehoon Shin, Seoul (KR); Myoungju Kang, Seoul (KR); and Dongjeong Kim, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jul. 13, 2022, as Appl. No. 17/863,713.
Application 17/863,713 is a continuation of application No. 17/344,643, filed on Jun. 10, 2021, granted, now 11,414,910.
Application 17/344,643 is a continuation of application No. 16/781,825, filed on Feb. 4, 2020, granted, now 11,072,961, issued on Jul. 27, 2021.
Application 16/781,825 is a continuation of application No. 16/354,727, filed on Mar. 15, 2019, granted, now 10,590,690, issued on Mar. 17, 2020.
Application 16/354,727 is a continuation of application No. 15/532,785, granted, now 10,280,673, issued on May 7, 2019, previously published as PCT/KR2016/004424, filed on Apr. 27, 2016.
Claims priority of application No. 10-2015-0082346 (KR), filed on Jun. 11, 2015; and application No. 10-2016-0001271 (KR), filed on Jan. 5, 2016.
Prior Publication US 2022/0349236 A1, Nov. 3, 2022
Int. Cl. E05F 15/619 (2015.01); F25D 23/02 (2006.01); E05F 15/73 (2015.01); F25D 29/00 (2006.01)
CPC E05F 15/619 (2015.01) [E05F 15/73 (2015.01); F25D 23/028 (2013.01); E05F 2015/765 (2015.01); E05Y 2400/858 (2013.01); E05Y 2900/31 (2013.01); F25D 29/00 (2013.01); F25D 2327/001 (2013.01); F25D 2700/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A refrigerator comprising:
a cabinet having a storage space; and
a door configured to open and close at least a portion of the storage space,
wherein the door comprises:
a panel assembly comprising a front panel that defines a front surface of the door, the front panel having (i) a see-through area configured to enable a user to view an inside of the refrigerator and (ii) a bezel that is provided at a perimeter of a rear surface of the front panel and surrounds the see-through area,
a cap decoration that is coupled to the front panel and defines an accommodation space, the accommodation space being recessed inward from an opening of the cap decoration,
a side frame that is coupled to the front panel and defines a side surface of the door,
an insulation provided in an insulating space that is defined by the panel assembly, the cap decoration, and the side frame,
a knock detection device detachably received in the accommodation space and configured to detect a knock input of the user applied to a front surface of the front panel, the knock detection device facing the bezel, and
a detection device printed circuit board (PCB) disposed within the accommodation space and configured to determine a valid knock input.