公开(公告)号：US20230077481A1

公开(公告)日：2023-03-16

申请号：US17801956

申请日：2021-02-24

Applicant: LG ELECTRONICS INC.

Inventor： Seongho HONG ,  Eunjun CHO ,  Hojin SEO

IPC: F24F11/36

Abstract: A heat pump including a housing configured to be disposed outdoors; a compressor that compresses a refrigerant; a fluid refrigerant heat exchanger configured to perform heat exchange between the refrigerant and a fluid; an outdoor heat exchanger configured to perform heat exchange between the refrigerant and outdoor air; a pressure sensor configured to detect a pressure of the refrigerant flowing between the compressor and the fluid refrigerant heat exchanger; a first shut-off valve disposed in a pipe connected to a discharge of the compressor; a second shut-off valve disposed between the outdoor heat exchanger and the compressor; and a controller configured to: determine whether the refrigerant leaks, control the first shut-off valve to be closed, when the refrigerant leaks, and control the second shutoff valve to be closed, when the pressure sensed by the pressure sensor is less than a predetermined reference pressure.

公开(公告)号：US20180326818A1

公开(公告)日：2018-11-15

申请号：US15776464

申请日：2016-07-28

Applicant: LG Electronics Inc.

Inventor： Seongho HONG ,  Naehyun PARK ,  Hyounjeong SHIN

IPC: B60H3/00 ,  B60H1/00

CPC classification number: B60H3/0035 ,  B60H1/00742 ,  B60H1/008 ,  B60H3/0028 ,  B60H2003/0064 ,  F24F3/16 ,  F24F2003/1682 ,  F24F2003/1689

Abstract: A method of controlling an air freshener device for a passenger compartment of a vehicle is disclosed. The method has an effect of creating various environments in the passenger compartment, using anion perfume modules, which are coupled to air ducts so as to communicate therewith or are mounted to air discharge ports of a vehicular air cleaning device, and which generate perfume having negative polarity (−) characteristics using electric current applied thereto so that the perfume is mixed with purified air discharged from the air discharge ports and is directed toward a passenger, having positive polarity (+) characteristics, in the passenger compartment.