US 12,064,079 B2
Cleaner
Bohyun Nam, Seoul (KR); Namhee Kim, Seoul (KR); Jinju Kim, Seoul (KR); Hyeonjeong An, Seoul (KR); Jungbae Hwang, Seoul (KR); Philjae Hwang, Seoul (KR); Mantae Hwang, Seoul (KR); Eunji Sung, Seoul (KR); and Taekgi Lee, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Apr. 23, 2021, as Appl. No. 17/239,226.
Application 17/239,226 is a continuation of application No. 16/777,563, filed on Jan. 30, 2020.
Application 16/777,563 is a continuation of application No. 15/475,533, filed on Mar. 31, 2017, granted, now 10,617,269, issued on Apr. 14, 2020.
Claims priority of application No. 10-2016-0039814 (KR), filed on Mar. 31, 2016; application No. 10-2016-0059472 (KR), filed on May 16, 2016; application No. 10-2016-0070220 (KR), filed on Jun. 7, 2016; and application No. 10-2016-0108313 (KR), filed on Aug. 25, 2016.
Prior Publication US 2021/0235950 A1, Aug. 5, 2021
Int. Cl. A47L 9/16 (2006.01); A47L 5/22 (2006.01); A47L 5/24 (2006.01); A47L 9/10 (2006.01); A47L 9/12 (2006.01); A47L 9/22 (2006.01); A47L 9/28 (2006.01); A47L 9/32 (2006.01)
CPC A47L 9/1675 (2013.01) [A47L 5/22 (2013.01); A47L 5/24 (2013.01); A47L 9/106 (2013.01); A47L 9/12 (2013.01); A47L 9/16 (2013.01); A47L 9/1625 (2013.01); A47L 9/1633 (2013.01); A47L 9/1641 (2013.01); A47L 9/1683 (2013.01); A47L 9/22 (2013.01); A47L 9/28 (2013.01); A47L 9/2842 (2013.01); A47L 9/2857 (2013.01); A47L 9/2873 (2013.01); A47L 9/2884 (2013.01); A47L 9/32 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A cleaner comprising:
a suction unit configured to suction air and dust;
a suction motor configured to generate suction force to thereby suction the air and the dust through the suction unit;
an impeller connected to the suction motor and positioned above the suction motor; and
a dust separation unit configured to separate the dust from the air suctioned through the suction unit, the dust separation unit comprising:
a first cyclone unit, wherein an axis of the suction motor extends along an axis of a cyclone flow of the first cyclone unit, and
a second cyclone unit configured to receive the air and the dust from the first cyclone unit and to separate the dust from the air received from the first cyclone unit, wherein the suction motor is positioned above an outlet of the second cyclone unit, wherein the cleaner has:
a first air passage that surrounds an outer circumference of the suction motor and is configured to guide the air discharged from the outlet of the second cyclone unit to rise and flow into the suction motor, and
a second air passage configured to discharge the air discharged from the suction motor to an outside of the cleaner through air exits, the air exits being positioned above the suction motor.