US 12,264,837 B2
Hygiene management device for entrance hall
Taihong Kim, Seoul (KR); Hyunbyung Cha, Seoul (KR); Hyunsun Yoo, Seoul (KR); Joohyeon Oh, Seoul (KR); Byoungjoonphilip Han, Seoul (KR); Sang Yoon Lee, Seoul (KR); HyunJu Kim, Seoul (KR); and Chul Bae Lee, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Dec. 14, 2021, as Appl. No. 17/550,614.
Claims priority of application No. 10-2020-0174512 (KR), filed on Dec. 14, 2020; and application No. 10-2021-0015902 (KR), filed on Feb. 4, 2021.
Prior Publication US 2022/0186971 A1, Jun. 16, 2022
Int. Cl. F24F 11/79 (2018.01); F24F 9/00 (2006.01); F24F 13/072 (2006.01); F24F 13/14 (2006.01)
CPC F24F 11/79 (2018.01) [F24F 9/00 (2013.01); F24F 13/072 (2013.01); F24F 13/1413 (2013.01); F24F 13/1426 (2013.01); F24F 2013/1433 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A hygiene management device comprising:
a footrest located at a bottom side of an entrance space to pass air through a surface of the footrest;
an air management module configured to receive the air passed through the footrest and to manage quality of the passing air;
a fan assembly configured to receive the air from the air management module and to generate a flow of the air;
a duct constituting a path of the air flow generated by operation of the fan assembly; and
an air discharger including an air guide unit and a discharge hole and configured to receive the air flowing through the duct and to discharge the air through the discharge hole towards the surface of the footrest within a predetermined angle range in an entering/exiting direction of a person, the air guide unit including:
a vane frame communicating the duct with the discharge hole;
a plurality of vanes positioned adjacent to one another in the vane frame and configured to be rotatable to guide air; and
a vane motor configured to supply a driving force to rotate the plurality of vanes,
wherein each of the plurality of vanes includes an upper flow part configured to receive air from the duct and to guide the air, a lower flow part configured to discharge the guided air, and a connection curved part connecting the upper flow part with the lower flow part,
wherein each upper flow part at least partially extends into an inside of the duct, and
wherein the upper flow parts of the vanes extend further into the duct the further downstream each respective vane is in relation to a flowing direction of the air in the duct.