US 12,246,331 B2
Air purifier for improving removal performance of hazardous substance and virus in air
Chang Min Lee, Namyangju-si (KR)
Assigned to AHAINC CO., LTD., Gimpo-si (KR)
Appl. No. 17/616,903
Filed by AHAINC CO., LTD., Gimpo-si (KR)
PCT Filed Nov. 12, 2021, PCT No. PCT/KR2021/016479
§ 371(c)(1), (2) Date Dec. 6, 2021,
PCT Pub. No. WO2022/108247, PCT Pub. Date May 27, 2022.
Claims priority of application No. 10-2020-0153516 (KR), filed on Nov. 17, 2020; application No. 10-2020-0167427 (KR), filed on Dec. 3, 2020; and application No. 10-2020-0189375 (KR), filed on Dec. 31, 2020.
Prior Publication US 2022/0347696 A1, Nov. 3, 2022
Int. Cl. B03C 3/38 (2006.01); B03C 3/51 (2006.01); B03C 3/82 (2006.01)
CPC B03C 3/38 (2013.01) [B03C 3/51 (2013.01); B03C 3/82 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An air purifier for removing viruses, comprising:
a body having an air inlet formed on a lower end thereof, an air outlet formed on an upper end thereof, and a flow path formed therein to move air upward;
a pre-filter disposed in the flow path of the body;
a modular type box-shaped cell type discharge device disposed in the flow path of the body to generate active species containing radicals so as to kill the viruses in the air and having a first electrode plate on which box-shaped cells with a given length are repeatedly connected vertically to one another, needle-shaped discharge electrodes inserted into the box-shaped cells, respectively, a second electrode plate for locating the needle-shaped discharge electrodes thereon, and an insertable and drawable box-shaped case open on top and underside thereof and coupled to the first electrode plate and the second electrode plate therein;
a modular type dust collection device disposed in the flow path of the body, separately from the modular type box-shaped cell type discharge device, to collect the killed viruses and dust passing through the modular type box-shaped cell type discharge device, and having a discharge part with a linear discharge electrode for charging the killed viruses and dust passing through the modular type box-shaped cell type discharge device, a dust collection part for collecting the dust charged through the discharge part, and an insertable and drawable box-shaped case open on top and underside thereof and coupled to the discharge part and the dust collection part therein;
an ozone removal device disposed in the flow path of the body to remove ozone generated from the modular type box-shaped cell type discharge device and/or the modular type dust collection device; and
an air fan disposed in the flow path of the body.