US 12,290,776 B2
Air cleaner
Taeman Yang, Seoul (KR); Joonmin Park, Seoul (KR); and Choonmyun Chung, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jul. 9, 2021, as Appl. No. 17/371,716.
Claims priority of application No. 10-2020-0085479 (KR), filed on Jul. 10, 2020.
Prior Publication US 2022/0008856 A1, Jan. 13, 2022
Int. Cl. B01D 46/00 (2022.01); B01D 46/24 (2006.01); B01D 46/60 (2022.01)
CPC B01D 46/0049 (2013.01) [B01D 46/2403 (2013.01); B01D 46/60 (2022.01); B01D 2273/30 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An air cleaner comprising:
a blower having an outlet defined at an upper side thereof;
a circulator that is disposed on the blower and that includes a blower fan, the circulator having (i) an inlet defined at a bottom side of the circulator and (ii) an outlet defined at an upper side of the circulator; and
a mover coupled to the circulator and configured to change an arrangement of the circulator,
wherein the blower fan comprises:
a hub including (i) an inner hub disposed at a center of the hub and (ii) an outer hub that is disposed at an edge of the hub and that extends radially and upwardly from the inner hub,
a shroud that is spaced apart downwardly from the outer hub and that extends radially and upwardly from a bottom edge of the shroud, and
a plurality of blades that are positioned between the outer hub and the shroud and that are coupled to the hub and the shroud,
wherein the circulator further comprises:
a lower cover that is disposed below the blower fan, the lower cover comprising a lower plate that is disposed at a center of the lower cover and that is coupled to the mover, and the lower cover having the inlet that is defined around the lower plate and that extends in a radial direction of the blower fan,
an upper cover disposed above the blower fan and having the outlet of the circulator, and
a motor disposed between the inner hub and the lower cover, the motor having a rotation shaft coupled to the inner hub, and
wherein the motor is fixed to an upper side of the lower plate.