Samsung Electronics Co., Ltd.

Hyoung Sub Choi

Dong Won Chun

Sang Ho Park

Jeong Min Kim

Gyoo Sang Choi

Sung Kyung Lee

Sang In Lee

Jong Soo Jeon

Chan Young Lee

Deok Sang Yun

Sung Jae Lee

Hwan Dong Lee

Embodiments of the disclosure relate to a robot cleaner and a controlling method thereof, and more particularly, to a robot cleaner and a traveling algorithm of a robot cleaner having an improved structure. A robot cleaner of the disclosure includes a brush unit having a suction flow path, a body unit configured to have a driving device, and be coupled to the brush unit to be rotatable with respect to the brush unit and a redirection device configured to rotate the body unit relative to the brush unit, and the redirection device includes a rotation guide extending along an inner circumferential surface of the brush unit, a rotation driving source disposed in the body unit and generating power, and a power transmission member which moves along the rotation guide by the power transmitted from the rotation driving source and rotates the body unit with respect to the brush unit.

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Seoul, South Korea

Hyoung Sub Choi