US 11,852,397 B2
Refrigerator with automatic door opening and controlling method thereof
Hyeonghwan Choi, Suwon-si (KR); Yongkeun Jee, Suwon-si (KR); Jungwon Choi, Suwon-si (KR); and Jonghun Ha, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Apr. 15, 2021, as Appl. No. 17/231,463.
Claims priority of application No. 10-2020-0075010 (KR), filed on Jun. 19, 2020.
Prior Publication US 2021/0396453 A1, Dec. 23, 2021
Int. Cl. F25D 23/02 (2006.01); F25D 29/00 (2006.01); G08B 21/18 (2006.01); G08B 5/36 (2006.01)
CPC F25D 23/028 (2013.01) [F25D 29/005 (2013.01); G08B 5/36 (2013.01); G08B 21/182 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A refrigerator comprising:
a main body including a first door and a second door;
a door opening device comprising a module for opening the first door and the second door;
a first proximity sensor disposed adjacent to the first door;
a second proximity sensor disposed adjacent to the second door; and
a processor,
wherein the processor is configured to:
control the first proximity sensor and the second proximity sensor to operate alternately,
based on sensing data obtained by the first proximity sensor and the second proximity sensor, identify a door close to an external object that approaches within a threshold distance from the refrigerator, and
transmit to the door opening device a signal for opening the identified door among the first door and the second door.