公开(公告)号：US11221159B2

公开(公告)日：2022-01-11

申请号：US16391847

申请日：2019-04-23

Applicant: LG ELECTRONICS INC

Inventor： Juyoun Lee ,  Soojin Kang ,  Jusu Kim

IPC: F24F11/79 ,  F24F1/0014 ,  F24F1/0047 ,  F24F110/10

Abstract: A method of controlling a ceiling type air conditioner including a panel located on a ceiling surface, outlets formed at positions corresponding to four sides of the panel, a first vane group for opening and closing the outlets located at two opposing sides, and a second vane group for opening and closing the outlets located at the other two opposing sides includes performing a dynamic airflow mode in which an indoor temperature reaches a set temperature by controlling rotation angles of the first vane group and the second vane group, and calculating a pleasant airflow index Y for determining a pleasant feeling of a user at the set temperature. The pleasant airflow index is calculated using the indoor temperature, the rotation angle of the first vane group or the second vane group, an air volume, a distance from a floor surface and an airflow position as variables.

公开(公告)号：US20220065544A1

公开(公告)日：2022-03-03

申请号：US17411230

申请日：2021-08-25

Applicant: LG ELECTRONICS INC.

Inventor： Jeongseob Shin ,  Seungtaek Oh ,  Soojin Kang ,  Bonggil Jeon

IPC: F28D7/00 ,  F28F1/02 ,  F28F9/02

Abstract: A heat exchanger is disclosed. The heat exchanger of the present disclosure includes a first heat exchanger into or from which a first fluid flows or is discharged, and a second heat exchanger into or from which a second fluid flows or is discharged, the second heat exchanger being adjacent to the first heat exchanger, and the first heat exchanger and the second heat exchanger are rolled together in a roll shape, are alternately disposed in a radial direction, and are in contact with each other.

公开(公告)号：US20190353386A1

公开(公告)日：2019-11-21

申请号：US16391847

申请日：2019-04-23

Applicant: LG ELECTRONICS INC.

Inventor： Juyoun LEE ,  Soojin Kang ,  Jusu Kim

IPC: F24F11/79 ,  F24F1/0014 ,  F24F1/0047

Abstract: A method of controlling a ceiling type air conditioner including a panel located on a ceiling surface, outlets formed at positions corresponding to four sides of the panel, a first vane group for opening and closing the outlets located at two opposing sides, and a second vane group for opening and closing the outlets located at the other two opposing sides includes performing a dynamic airflow mode in which an indoor temperature reaches a set temperature by controlling rotation angles of the first vane group and the second vane group, and calculating a pleasant airflow index Y for determining a pleasant feeling of a user at the set temperature. The pleasant airflow index is calculated using the indoor temperature, the rotation angle of the first vane group or the second vane group, an air volume, a distance from a floor surface and an airflow position as variables.

公开(公告)号：US10890339B2

公开(公告)日：2021-01-12

申请号：US16411287

申请日：2019-05-14

Applicant: LG ELECTRONICS INC.

Inventor： Juyoun Lee ,  Soojin Kang ,  Jusu Kim

IPC: F24F1/0047 ,  F04D25/08 ,  F04D29/56 ,  F04D29/58 ,  F24F1/0003 ,  F24F1/0014 ,  F24F1/0018

Abstract: A method of controlling a ceiling type air conditioner including a panel, a first vane group, and a second vane group, and each of the first and second vane groups including an upper discharge vane and a lower discharge vane includes performing first mixing operation in which the first vane group guides air in a direction close to the ceiling surface to form horizontal airflow and the second vane group guides air in a direction close to a floor surface to form vertical airflow, determining whether swing operation of continuously rotating the first vane group and the second vane group or fixing operation in which the first vane group and the second vane group are located at the same angle is performed, and performing second mixing operation in which the first vane group forms the vertical airflow and the second vane group forms the horizontal airflow.

公开(公告)号：US10590931B2

公开(公告)日：2020-03-17

申请号：US16016303

申请日：2018-06-22

Applicant: LG Electronics Inc.

Inventor： Hansaem Park ,  Soojin Kang ,  Kangwook Lee ,  Hojong Jeong ,  Cheolhwan Kim

IPC: F04C18/02 ,  F04C29/00 ,  F04C29/04 ,  F04C23/00 ,  F04C29/12 ,  F04C29/02 ,  F25B1/04

Abstract: A scroll compressor according to the present disclosure and an air conditioner having the scroll compressor may include a drive motor provided in an inner space of a casing; a rotation shaft coupled to the drive motor; a frame provided on a lower side of the drive motor; a first scroll provided on a lower side of the frame, one side of which is formed with a first wrap; a second scroll in which a second wrap engaged with the first wrap is formed, and the rotation shaft is eccentrically coupled to the second wrap to overlap therewith in a radial direction, a compression chamber is formed between the first scroll and the second scroll while being orbitally moved with respect to the first scroll, and the compression chamber is connected to an evaporator outlet side of the cooling cycle; and an injection unit one end of which is branched from a refrigerant pipe between the condenser and the evaporator, and the other end of which is connected to the compression chamber through the first scroll.

公开(公告)号：US20250035351A1

公开(公告)日：2025-01-30

申请号：US18779238

申请日：2024-07-22

Applicant: LG ELECTRONICS INC.

Inventor： Seungtaek OH ,  Doyong Ha ,  Jeongseob Shin ,  Sangil Park ,  Soojin Kang ,  Hyunjong Kim ,  Kyongmin Kwon

IPC: F25B41/20 ,  F25B30/02

Abstract: A heat supplier may include a compressor that compresses a refrigerant; a first heat exchanger that exchanges heat between air and the refrigerant; a second heat exchanger that exchanges heat between a fluid and the refrigerant; a switching valve that directs the refrigerant discharged from the compressor into the first heat exchanger or the second heat exchanger; a first liquid pipe that connects the first heat exchanger and the second heat exchanger; a second liquid pipe connected in parallel to the first liquid pipe so as to connect the first heat exchanger and the second heat exchanger; a first expansion valve disposed at the first liquid pipe and configured to expand refrigerant flowing therethrough; and a second expansion valve disposed at the second liquid pipe and configured to expand refrigerant flowing therethrough. A size of an aperture of the second expansion valve may be greater than a size of an aperture of the first expansion valve, enabling a flow rate of refrigerant to be adjusted according to an operation mode.

公开(公告)号：US10422560B2

公开(公告)日：2019-09-24

申请号：US15442130

申请日：2017-02-24

Applicant: LG ELECTRONICS INC.

Inventor： Hansaem Park ,  Soojin Kang ,  Dongkeun Yang

IPC: F25B41/00

Abstract: An ejector and a refrigeration cycle apparatus having an ejector are provided. The ejector may include an ejector body having a suction portion into which a high pressure refrigerant and a low pressure refrigerant may be suctioned, and having a mixing portion provided at one side of the suction portion and configured to mix the high pressure refrigerant with the low pressure refrigerant; a nozzle movably provided in the suction portion, and configured to inject the high pressure refrigerant; a needle inserted into an end of the nozzle and configured to control a flow sectional area of the nozzle; and a nozzle drive configured to drive the nozzle so as to be relatively movable with respect to the mixing portion and the needle. As a flow sectional area of a high pressure refrigerant passage and a flow sectional area of a low pressure refrigerant passage are controlled, a driving efficiency of the ejector may be enhanced.