公开(公告)号：US11698212B2

公开(公告)日：2023-07-11

申请号：US17370114

申请日：2021-07-08

Applicant: LG ELECTRONICS INC.

Inventor： Eunjun Cho ,  Jungmin Park ,  Pilhyun Yoon ,  Seongho Hong ,  Yejin Kim

IPC: F25B43/04 ,  F25B41/31 ,  F25B13/00 ,  F25B39/00

CPC classification number: F25B43/043 ,  F25B13/00 ,  F25B39/00 ,  F25B41/31 ,  F25B2400/0403 ,  F25B2400/0409 ,  F25B2400/23

Abstract: An air conditioner may include a compressor that compresses refrigerant; a condenser that condenses the refrigerant; at least one expansion valve that expands the refrigerant; a gas-liquid separator that separates and discharges the refrigerant into gas refrigerant and liquid refrigerant; an evaporator that evaporates the liquid refrigerant discharged from the gas-liquid separator; a refrigerant inflow pipe that connects the expansion valve and the gas-liquid separator; a bypass pipe that connects the gas-liquid separator and the compressor; and a refrigerant discharge pipe that connects the gas-liquid separator and the evaporator. The gas-liquid separator may include a housing in which a portion of the refrigerant inflow pipe, the bypass pipe, and the refrigerant discharge pipe may be disposed, and first and second partition walls disposed in the housing.

公开(公告)号：US20210389032A1

公开(公告)日：2021-12-16

申请号：US17336510

申请日：2021-06-02

Applicant: LG ELECTRONICS INC.

Inventor： Eunjun CHO ,  Pilhyun Yoon ,  Seongho Hong ,  Jungmin Park ,  Yejin Kim

IPC: F25B43/00 ,  F25B41/31 ,  F25B41/40 ,  F25B39/00

Abstract: An air conditioner is provided that may include a compressor that compresses a refrigerant; a condenser that condenses the refrigerant discharged from the compressor; at least one expansion valve that expands the refrigerant passed through the condenser; at least one gas-liquid separation pipe through which the refrigerant passed through the at least one expansion valve flows; a gas-liquid separator, into which the refrigerant passed through the at least one gas-liquid separation pipe is introduced, that separates and discharges the refrigerant introduced into the gas-liquid separator into gas refrigerant and liquid refrigerant; and an evaporator that evaporates the liquid refrigerant discharged from the gas-liquid separator. The gas refrigerant discharged from the gas-liquid separator and the refrigerant passed through the evaporator may be provided to the compressor. The at least one gas-liquid separation pipe may include a first portion that extends lengthwise, and is connected to a refrigerant inflow pipe in which the at least one expansion valve may be installed, and a second portion that extends in a direction crossing a lengthwise direction of the first portion and is coupled to the first portion. At least one of the first portion or the second portion may be connected to the gas-liquid separator.

公开(公告)号：US20220011029A1

公开(公告)日：2022-01-13

申请号：US17370114

申请日：2021-07-08

Applicant: LG ELECTRONICS INC.

Inventor： Eunjun Cho ,  Jungmin Park ,  Pilhyun Yoon ,  Seongho Hong ,  Yejin Kim

IPC: F25B43/04 ,  F25B39/00 ,  F25B41/31 ,  F25B13/00

Abstract: An air conditioner is provided that may include a compressor that compresses a refrigerant; a condenser that condenses the refrigerant discharged from the compressor; at least one expansion valve that expands the refrigerant passing through the condenser; a gas-liquid separator, through which the refrigerant passed through the at least one expansion valve flows, that separates and discharges the refrigerant into gas refrigerant and liquid refrigerant; an evaporator that evaporates the liquid refrigerant discharged from the gas-liquid separator; a refrigerant inflow pipe that connects the expansion valve and the gas-liquid separator; a bypass pipe that connects the gas-liquid separator and the compressor; and a refrigerant discharge pipe that connects the gas-liquid separator and the evaporator. The gas-liquid separator may include a housing in which a portion of each of the refrigerant inflow pipe, the bypass pipe, and the refrigerant discharge pipe may be disposed; a first partition wall, which is disposed in an internal space of the housing and includes a first opening formed by cutting out a portion of an outer surface thereof disposed adjacent to the refrigerant inflow pipe, and a second partition wall, which is spaced apart from the first partition wall and disposed in the internal space of the housing and includes a second opening formed by cutting out a portion of an outer surface thereof disposed adjacent to the refrigerant discharge pipe.

公开(公告)号：US12123606B2

公开(公告)日：2024-10-22

申请号：US17801956

申请日：2021-02-24

Applicant: LG ELECTRONICS INC.

Inventor： Seongho Hong ,  Eunjun Cho ,  Hojin Seo

IPC: F24F11/36

CPC classification number: 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：US11668501B2

公开(公告)日：2023-06-06

申请号：US17336510

申请日：2021-06-02

Applicant: LG ELECTRONICS INC.

Inventor： Eunjun Cho ,  Pilhyun Yoon ,  Seongho Hong ,  Jungmin Park ,  Yejin Kim

IPC: F25B43/00 ,  F25B41/31 ,  F25B41/40 ,  F25B39/00

CPC classification number: F25B43/00 ,  F25B39/00 ,  F25B41/31 ,  F25B41/40 ,  F25B2400/23

Abstract: An air conditioner may include a compressor that compresses a refrigerant; a condenser that condenses the refrigerant discharged from the compressor; at least one expansion valve that expands the refrigerant passed through the condenser; at least one gas-liquid separation pipe through which the refrigerant passed through the at least one expansion valve flows; a gas-liquid separator, into which the refrigerant passed through the at least one gas-liquid separation pipe is introduced, that separates and discharges the refrigerant introduced into the gas-liquid separator into gas refrigerant and liquid refrigerant; and an evaporator that evaporates the liquid refrigerant discharged from the gas-liquid separator. The gas refrigerant discharged from the gas-liquid separator and the refrigerant passed through the evaporator may be provided to the compressor.