US 12,392,068 B2
Clothing treatment apparatus
Dongsoo Lee, Seoul (KR); and Taewoong Kim, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 17/910,702
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Feb. 22, 2021, PCT No. PCT/KR2021/002190
§ 371(c)(1), (2) Date Sep. 9, 2022,
PCT Pub. No. WO2021/182768, PCT Pub. Date Sep. 16, 2021.
Claims priority of application No. 10-2020-0029128 (KR), filed on Mar. 9, 2020.
Prior Publication US 2023/0137038 A1, May 4, 2023
Int. Cl. D06F 29/00 (2006.01); D06F 25/00 (2006.01); D06F 37/26 (2006.01); D06F 39/04 (2006.01); D06F 58/10 (2006.01); D06F 58/20 (2006.01); D06F 58/22 (2006.01)
CPC D06F 29/005 (2013.01) [D06F 25/00 (2013.01); D06F 37/26 (2013.01); D06F 39/04 (2013.01); D06F 58/10 (2013.01); D06F 58/206 (2013.01); D06F 58/22 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A laundry treating apparatus comprising:
a first cabinet that defines at least a portion of an outer appearance of the laundry treating apparatus;
a first drum rotatably disposed inside the first cabinet and configured to accommodate laundry;
a second cabinet disposed below the first cabinet;
a tub disposed inside the second cabinet;
a second drum rotatably disposed inside the tub and configured to accommodate laundry;
a first intake duct configured to receive air from the first drum;
a first opening/closing unit configured to open and close the first intake duct;
a second intake duct configured to receive air from the tub;
a second opening/closing unit configured to open and close the second intake duct;
a connection duct connected to the first intake duct and the second intake duct;
a heat exchanger disposed in the connection duct and configured to exchange heat with the air received in the connection duct;
a first exhaust duct configured to guide the air heat-exchanged through the heat exchanger to the first drum;
a second exhaust duct configured to guide the air heat-exchanged through the heat exchanger to the tub; and
a first purifier disposed in the connection duct and configured to filter a foreign substance from the air received from the first intake duct or the second intake duct before the heat exchanger exchanges heat with the air received from the first intake duct or the second intake duct,
wherein the first opening/closing unit comprises:
a first blocker configured to open and close the first intake duct, and
a first opening/closing driver connected to the first blocker and configured to rotate the first blocker to thereby open and close the first intake duct by the first blocker,
and
wherein the first blocker comprises:
a first main body that extends in a left-right direction and defines first curved surfaces that are curved in a front-rear direction, wherein a length of the first main body in the left-right direction is greater than a width of the first main body in the front-rear direction, and
first sub-bodies that have a circular shape and are coupled to left and right ends of the first main body, respectively.