US 10,888,811 B2
Air purifying unit and air cleaning/ventilation device comprising same
Hyun-Jin Hong, Seoul (KR); Chan-Jung Park, Seoul (KR); Hyung-Tae Kim, Seoul (KR); Jong-Min Kim, Seoul (KR); Young-Kwang Choi, Seoul (KR); and Kyung-Hwan Lee, Seoul (KR)
Assigned to COWAY CO., LTD., Chungcheongnam-do (KR)
Appl. No. 16/67,853
Filed by COWAY CO., LTD., Chungcheongnam-do (KR)
PCT Filed Jan. 4, 2017, PCT No. PCT/KR2017/000110
§ 371(c)(1), (2) Date Jul. 3, 2018,
PCT Pub. No. WO2017/119721, PCT Pub. Date Jul. 13, 2017.
Claims priority of application No. 10-2016-0000940 (KR), filed on Jan. 5, 2016; application No. 10-2016-0000992 (KR), filed on Jan. 5, 2016; application No. 10-2016-0000995 (KR), filed on Jan. 5, 2016; application No. 10-2016-0010877 (KR), filed on Jan. 28, 2016; and application No. 10-2016-0010881 (KR), filed on Jan. 28, 2016.
Prior Publication US 2019/0001249 A1, Jan. 3, 2019
Int. Cl. B01D 46/18 (2006.01); B01D 46/48 (2006.01); F24F 3/16 (2006.01); F24F 13/08 (2006.01); F24F 13/20 (2006.01); F24F 13/28 (2006.01); F24F 13/06 (2006.01); F24F 7/007 (2006.01); E06B 7/03 (2006.01); B01D 46/00 (2006.01); E06B 7/02 (2006.01)
CPC B01D 46/0047 (2013.01) [B01D 46/002 (2013.01); B01D 46/0026 (2013.01); B01D 46/0065 (2013.01); B01D 46/18 (2013.01); B01D 46/48 (2013.01); E06B 7/03 (2013.01); F24F 3/16 (2013.01); F24F 3/1603 (2013.01); F24F 7/007 (2013.01); F24F 13/06 (2013.01); F24F 13/08 (2013.01); F24F 13/20 (2013.01); F24F 13/28 (2013.01); B01D 2279/50 (2013.01); E06B 2007/023 (2013.01); F24F 2221/125 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An air purifying unit, comprising:
a housing provided with an air intake unit on one side and an air discharge unit on the other side;
a blowing fan provided inside of the housing;
an air purifier installed between the air intake unit and the blowing fan to purify air;
a fan guide provided inside of the housing, the fan guide configured to surround an outer periphery of the blowing fan;
a pre-filter unit provided between the air intake unit and the air purifier, the pre-filter unit comprising a roll filter wound and rotating around a winding roller; and
an inner brush configured to brush dust collected on an inner side surface of the roll filter, the inner brush inclined downwardly toward one end of the roll filter such that dust accumulated in the roll filter is brushed and then moved in a direction of the one end of the roll filter.