US 12,290,775 B2
Air cleaner
Taeman Yang, Seoul (KR); Junho Min, 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. 17/371,697.
Claims priority of application No. 10-2020-0085469 (KR), filed on Jul. 10, 2020.
Prior Publication US 2022/0008855 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)] 20 Claims
OG exemplary drawing
 
1. An air cleaner comprising:
a first blowing device having (i) a first inlet defined at a lower part thereof and (ii) a first outlet defined at an upper surface thereof, the first outlet extending in a circumferential direction;
a second blowing device disposed above the first blowing device, the second blowing device having a second inlet defined at a lower part thereof; and
a partition plate disposed between the first outlet and the second blowing device and configured to guide air discharged from the first outlet to flow in a radially outward direction,
wherein the first blowing device comprises:
a case that defines the first inlet and that is open at an upper side,
a discharge guide device that is disposed in the open upper side of the case and that defines the first outlet in the circumferential direction, the discharge guide device comprising a plurality of discharge grilles that define a plurality of the first outlets in the circumferential direction,
a first fan disposed inside of the case and configured to generate an air flow from the first inlet to the first outlet, and
a splitter that is disposed between the partition plate and the discharge guide device and that extends upward from the discharge guide device in a radial direction of the discharge guide device, the splitter being configured to separate an air flow discharged from the first outlet and to guide the air flow discharged from the first outlet in the radially outward direction,
wherein the splitter has a first end that is inserted between the plurality of the discharge grilles, the splitter comprising a concave-convex portion that is disposed at the first end of the splitter, that is concave at a portion corresponding to the plurality of discharge grilles, and that is convex at a portion corresponding to the first outlet, and
wherein the discharge guide device comprises:
a body inner wall that defines an inner circumferential surface of the discharge guide device,
a body outer wall that defines an outer circumferential surface of the discharge guide device, the body outer wall defining the first outlet between the body inner wall and the body outer wall, and
a groove portion that is provided between the body outer wall and the body inner wall and that partitions grooves into which the concave-convex portion is inserted.