US 11,986,760 B2
Portable air purifier
Seong Woo An, Seoul (KR); Dongeun Kim, Seoul (KR); Min Kyu Oh, Seoul (KR); Deukwon Lee, Seoul (KR); Daewoong Kim, Seoul (KR); and Boan Kwon, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Jul. 27, 2021, as Appl. No. 17/386,050.
Claims priority of application No. 10-2020-0093970 (KR), filed on Jul. 28, 2020; and application No. 10-2020-0170567 (KR), filed on Dec. 8, 2020.
Prior Publication US 2022/0032224 A1, Feb. 3, 2022
Int. Cl. B01D 46/00 (2022.01); B01D 46/24 (2006.01)
CPC B01D 46/0049 (2013.01) [B01D 46/0005 (2013.01); B01D 46/24 (2013.01); B01D 2273/30 (2013.01); B01D 2279/65 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A portable air purifier, comprising:
a housing having an inlet through which air is suctioned, a filter, and a fan module, and forming an air flow path in a vertical direction;
a discharge disposed at an outlet of the housing and configured to guide a discharge direction of air;
a rotational supporter which is connected to the housing, movement of which is restricted, and which supports the discharge in a rotatable manner; and
a rotational guide disposed respectively at the discharge and the rotational supporter and configured to guide rotation of the discharge to allow the discharge to rotate within predetermined angles, wherein the rotational supporter comprises:
a core disposed at a lower side of the discharge and extending from a center of the outlet to the discharge;
a core supporter, which extends radially outward from the core, which is fixed to an inside of the housing, and movement of which is restricted together with movement of the core; and
a ball joint, a lower side of which is coupled to the core and movement of which is restricted, and an upper side of which is inserted into the discharge and supports the discharge in a rotatable manner.