US 11,992,176 B2
Cleaner and control method thereof
Jeayun So, Suwon-si (KR); Jinhee Kim, Suwon-si (KR); Jihye Seo, Suwon-si (KR); Yeonkyu Jeong, Suwon-si (KR); and Jaeyoul Jeong, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Sep. 4, 2020, as Appl. No. 17/012,519.
Claims priority of application No. 10-2019-0111003 (KR), filed on Sep. 6, 2019.
Prior Publication US 2021/0068604 A1, Mar. 11, 2021
Int. Cl. A47L 9/28 (2006.01); A47L 9/19 (2006.01)
CPC A47L 9/2815 (2013.01) [A47L 9/19 (2013.01); A47L 9/2842 (2013.01); A47L 2201/024 (2013.01); A47L 2201/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cleaner comprising:
a suction device configured to suck dust from outside of the cleaner through a suction port of the cleaner, and having an inner surface forming a suction flow path in the suction device along which the sucked dust passes;
a dust container having an inlet, and configured so that the sucked dust passed along the suction flow path of the suction device to an end of the suction path then passes through the inlet to be stored in the dust container;
a dust detection sensor including
a light emitting element, disposed outside of the suction flow path and the dust container, configured to emit light that passes through the suction flow path and the inlet of the dust container to be reflected inside the dust container, and light that passes through or to, the suction flow path to be reflected inside the suction device, and
a light receiving element, disposed outside of the suction flow path and the dust container, configured to receive the light reflected inside the dust container and the light reflected inside the suction device, and to output voltage values based on the received light; and
a processor configured to:
identify a dust inflow state and a dust amount of the dust container based on voltage values output by the light receiving element, and
control an operation of the cleaner based on the identified dust inflow state and dust amount.