US 11,666,849 B2
Filter module and air purifier having the same
Dah We Park, Suwon-si (KR); Gi Hoon Ko, Suwon-si (KR); Yeon-Young Nam, Suwon-si (KR); and Ji Hyeong Lee, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Appl. No. 16/764,994
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
PCT Filed Nov. 16, 2018, PCT No. PCT/KR2018/014146
§ 371(c)(1), (2) Date May 18, 2020,
PCT Pub. No. WO2019/098776, PCT Pub. Date May 23, 2019.
Claims priority of application No. 10-2017-0152882 (KR), filed on Nov. 16, 2017; and application No. 10-2018-0141757 (KR), filed on Nov. 16, 2018.
Prior Publication US 2020/0398207 A1, Dec. 24, 2020
Int. Cl. B01D 46/00 (2022.01); B01D 46/18 (2006.01); B01D 46/12 (2022.01); F24F 3/16 (2021.01); F24F 13/28 (2006.01); B01D 46/62 (2022.01); B01D 46/66 (2022.01)
CPC B01D 46/18 (2013.01) [B01D 46/0002 (2013.01); B01D 46/0028 (2013.01); B01D 46/0032 (2013.01); B01D 46/0038 (2013.01); B01D 46/12 (2013.01); B01D 46/62 (2022.01); B01D 46/66 (2022.01); F24F 3/16 (2013.01); F24F 13/28 (2013.01); B01D 2265/023 (2013.01); B01D 2265/028 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An air purifier comprising:
a main body comprising an inlet through which air is sucked; and
a filter module installed to be replaceable inside the inlet,
wherein:
the filter module comprises a supply roller and a recovery roller, and a filter on which two ends of the filter are wound and installed on the supply roller and the recovery roller;
the main body further comprises a main housing having an opening on a front surface of the main housing, and a suction cover having the inlet of the main body and the suction cover is detachably installed in a mounting portion of the main housing to cover the opening of the main housing;
the filter module further comprises a supply housing covering the supply roller, a recovery housing covering the recovery roller, and a rewind device that allows the filter to rewind the supply roller;
the main body further comprises a rewind release device that allows rewinding of the filter to be stopped;
the rewind device comprises:
a locking member rotatably installed on the supply roller, the locking member including a locking part in which a gear is formed on its outer circumferential surface;
a rewind spring elastically supporting the locking member in the circumferential direction; and
a locking hole formed on the supply housing to limit a rotation of the locking member; and
the rewind release device comprises:
a release pin movably installed in the mounting part of the main housing; and
a release spring elastically supporting the release pin.