公开(公告)号：US20230194408A1

公开(公告)日：2023-06-22

申请号：US17918399

申请日：2021-04-07

Applicant: LG ELECTRONICS INC.

Inventor： Jinhee NOH ,  Seongji KANG

IPC: G01N15/14

CPC classification number: G01N15/1434 ,  G01N2015/1493

Abstract: The present invention relates to a dust sensor comprising; a case having an air inlet and an air outlet, an air flow path which is formed inside the case, of which one end is connected to the air inlet, and of which the other end is connected to the air outlet, and which comprises first and second flow paths that have different air flow directions, a wind-blowing fan arranged on the air flow path, a first sensing module which is arranged on the air flow path and which senses dust particles in the air, and a second sensing module, which is arranged on the air flow path, arranged further downstream than the first sensing module, and senses dust particles that are smaller than the dust particles sensed by the first sensing module, and thus, the present invention can accurately measure both large dust particles and small dust particles present in the air.

公开(公告)号：US20220090814A1

公开(公告)日：2022-03-24

申请号：US17464856

申请日：2021-09-02

Applicant: LG Electronics Inc.

Inventor： Ji Eun CHOI ,  Hyungho PARK ,  Jinhee NOH ,  Dongryul PARK ,  Seongman JANG

IPC: F24F11/79 ,  F24F8/108 ,  F24F11/64 ,  F24F11/526 ,  B01D46/44 ,  B01D46/42 ,  B01D46/46 ,  B01D46/00 ,  B01D46/24

Abstract: An air cleaning system can rapidly senses occurrence of local pollution, caused by fine dust, through a remote sensor hub and supplies purified air to a polluted area in a concentrated manner, thereby quickly purifying indoor air.