Lg Electronics Inc.

Baik Young Chung

Cheol Soo Ko

Sai Kee Oh

Se Dong Chang

Jae Heuk Choi

Young Min Park

Sung Chun Kim

Sung Oh Choi

Chang Seon Lee

Seok Ho Yoon

Seung Yong Chang

Song Leem Choi

Cheol Min Kim

Jong Ho Park

Yoon Been Lee

Yun Ho Ryu

Se Yoon Oh

Dong Yeon Jang

Sim Bok Ha

Yong Cheol Sa

Hyung Soo Kim

Ju Youn Lee

Do Yong Ha

Ho Jong Jeong

Jae Dong Jang

Chi Woo Song

Yoon Ho Yoo

Kyung Hwan Kim

Young Min Kim

Ho Sam Choi

In Ho Choi

Chang Min Choi

Jae Won Lee

Jeong Yong Kim

Kwan Ho Yum

Gi Seop Lee

Il Nahm Hwang

Pil Hyun Yoon

Jong Han Park

Eun Jun Cho

Ji Young Jang

Tae Hee Kwak

Ho Seon Choi

Nam Soo Lee

Jin Seob Song

Yeong Seop Choe

Ju-Youn Lee

Il Kwon Oh

Yoon Beon Lee

Jeong Eon Oh

Jeong-Yong Kim

Kyung Won Seo

Bong Soo Park

Kwang Woon Kim

Ju Won Kim

Nam Joon Cho

Yong Cheol Lg Electronics Dig Appliance Lab Sa

A refrigerating system including an air conditioning system and a cooler system is provided. An air conditioner-side refrigerant passage may be connected to a cooler-side refrigerant passage to allow refrigerant to flow between the air conditioning system and the cooler system. Thus, if a cooler-side compressor experiences abnormal operation, cooler-side refrigerant may be compressed by an air conditioner-side compressor so as to maintain cooling performance of the refrigerating system.

Refrigerating system

An air conditioning system includes a compressor, an outdoor heat exchanger that discharges evaporated refrigerant, and a first pipe coupling the outdoor heat exchanger and the compressor, where the first pipe allows the outdoor heat exchanger to receive at least a portion of the compressed refrigerant from the compressor.

Air conditioning system including a bypass pipe

An air conditioner is provided, in which some of a plurality of outdoor heat exchangers implement a defrosting operation and others implement a heating operation. The air conditioner includes a compressor to compress refrigerant, a hot gas pipe to which a part of the refrigerant compressed in the compressor is moved, a 4-way valve to which the remaining refrigerant compressed in the compressor is moved, an indoor heat exchanger in which the refrigerant, having passed through the 4-way valve, undergoes heat exchange with indoor air, and a plurality of outdoor heat exchangers, some of which implement a heating operation as the heat-exchanged refrigerant from the indoor heat exchanger is moved therethrough while others implement a defrosting operation as the refrigerant having passed through the hot gas pipe is moved therethrough.

Air conditioner and defrosting operation method of the same

An air conditioner and a method for controlling the air conditioner are provided. The air conditioner may include an air-conditioning device having a variety of components that provide air-conditioning of an indoor space, an input device that receives signals to manipulate the air-conditioning device and signals to select a sleep mode, and a controller that, when the input device receives a signal to select the sleep mode, controls the air-conditioning device to perform a rapid eye movement sleep operation at least one time to air-condition the indoor space at a temperature higher than a temperature that is set in accordance with the sleep mode.

Air conditioner and method for controlling the same

An air conditioner includes a compressor, a first heat exchanger, and a first pipe configured to allow refrigerant to flow from the first heat exchanger. A bypass pipe is branched off from the first pipe and is configured to expand refrigerant flowing through the bypass pipe. A second heat exchanger is configured to allow the expanded refrigerant of the bypass pipe to heat-exchange with the refrigerant flowing along the first pipe. A second pipe couples the second heat exchanger to the compressor so that the refrigerant expanded by the bypass pipe and heat-exchanged at the second heat exchanger can be introduced into the compressor.

Air conditioner and method of controlling the same

An air conditioner and a method for controlling an air conditioner are provided. The air conditioner includes an air-conditioning device that air-conditions an indoor space, a lighting device that illuminates the indoor space, an input device that receives signals to operate the air-conditioning device and for selecting a sleep mode, and a controller that controls the lighting device and the air-conditioning device. When the input device receives the signal for selecting the sleep mode, the lighting device is controlled to sequentially perform a sleep entry operation in which the indoor space is illuminated to have a predetermined luminance and color temperature for a predetermined time, a sleep operation in which the indoor space is illuminated to have a predetermined luminance and color temperature until a wakeup time, and a wakeup operation in which the indoor space is illuminated to have a predetermined luminance and color temperature.

Air conditioner and method for controlling a light unit having a predetermined color temperature

A combined refrigerating/freezing and air conditioning system is provided. The system may include an air conditioning circuit, a refrigerating circuit, a freezing circuit, a first heat exchanger, and a second heat exchanger. The air conditioning circuit may include a compressor, an outdoor heat exchanger, and an indoor heat exchanger. The refrigerating circuit may include compressor, a condenser, and an evaporator. The freezing circuit may include a compressor, a condenser, and an evaporator. The refrigerant of the air conditioning circuit may be heat-exchanged with the refrigerant of the refrigerating circuit in the first heat exchanger, and the refrigerant of the refrigerating circuit may be heat-exchanged with the refrigerant of the freezing circuit in the second heat exchanger to improve air conditioning efficiency and refrigerating/freezing efficiency of the system.

Combined refrigerating/freezing and air conditioning system

An air conditioning system including an outdoor heat-exchanging unit, at least one indoor heat-exchanging unit, a gaseous refrigerant line connected between the outdoor heat-exchanging unit and the indoor heat-exchanging unit, to allow a refrigerant in a gaseous state to flow between the outdoor heat-exchanging unit and the indoor heat-exchanging unit, and a pressure compensation device for increasing a pressure of the gaseous refrigerant flowing through the gaseous refrigerant line. The pressure compensation device is located along the gaseous refrigerant line at a position closer to the indoor heat-exchanging unit than to the outdoor heat-exchanging unit. A pressure compensation device for use in an air conditioning system is also provided.

Air conditioning system having a pressure compensation device

A heat pump capable of performing heating and cooling simultaneously is provided. The heat pump includes a compressor, indoor devices that heat or cool an indoor space, outdoor heat exchangers, and switching devices. The outdoor heat exchangers are configured to individually operate as a condenser or an evaporator depending on a ratio of heating to cooling of the indoor devices. When an operation mode is changed, continuous heating and cooling is performed without stopping the system.

Simultaneous heating/cooling multi air conditioner

An air conditioner including an indoor heat exchange unit to perform a heat exchange process by the supply and absorption of heat through the circulation of a first refrigerant, at least one outdoor heat exchange unit to perform a heat exchange process by the absorption and supply of heat through the circulation of a second refrigerant, and an intermediate connection unit to perform a heat exchange between the first refrigerant and the second refrigerant.

Air conditioner

A compression system for an air conditioning system includes first and second compressors. The first compressor includes a first compression chamber in which a fluid introduced from an outside of the first compressor is compressed, and a first case defining a first space into which the fluid compressed in the first compression chamber is introduced. The second compressor includes a second case defining a second space into which the fluid compressed in the first compressor is introduced, and a second compression chamber in which the fluid introduced from the second space is compressed. The second compressor operates independently of the first compressor, and a connecting line connects the first and second compressors.

Compression system and air conditioning system

An apparatus and method for monitoring state information in a trial run mode of a multi-airconditioning system in which a plurality of indoor units are controlled by only one outdoor unit is disclosed. The apparatus and method connects a dedicated controller to the outdoor unit in a trial run mode of the multi-airconditioning system, such that it controls the indoor units and monitors state information of the indoor and outdoor units. The apparatus includes a trial-run-mode controller and a control input & state display unit. The trial-run-mode controller connected to the outdoor unit includes a trial-run-mode program for automatically detecting poor installation of the multi-airconditioning system. The control input & state display unit is connected to the trial-run-mode controller, enters control signals capable of performing control and monitoring operations of the trial run mode executed after the multi-airconditioning system has been installed, and outputs information associated with the control signals.

Apparatus and method for monitoring state information in trial run mode of multi-airconditioner

Multi-type air conditioner including a plurality of compressors, a plurality of temperature sensors mounted in the plurality of compressors for sensing temperatures in the compressors respectively, and an equalizing pipe in communication with the plurality of compressors, for uniform distribution of oil among the plurality of compressors according to the temperatures sensed at the plurality of temperature sensors respectively, thereby distributing oil among the compressors uniformly at an exact time point at which the oil is distributed among the compressors non-uniformly, not only to permit improvement of the performance of the compressors, but also to permit improvement performance of the air conditioner having the compressors.

Multi-type air conditioner and method for controlling the same

Multi-type air conditioner comprising an outdoor unit installed in an outdoor, comprising a compressor, a refrigerant flow controlling part connected to a discharge end of the compressor for guiding the refrigerant proper to operation conditions selectively, an outdoor heat exchanger connected to the refrigerant flow controlling part, a defrosting device at a side of the outdoor heat exchanger, and a piping system connected between the parts, a plurality of indoor units each installed in a room and having an indoor heat exchanger and an electronic expansion valve having one end connected to one end of the indoor heat exchanger, and a distributor between the outdoor unit and the indoor units for selectively guiding refrigerant from the outdoor unit to the plurality of indoor units proper to operation conditions, and guiding the refrigerant passed through the indoor units to the outdoor unit again.

Multi-type air conditioner with defrosting device

Disclosed herein is an oil separator for air conditioners that is capable of separating oil from refrigerant. The oil separator comprises a shell having a cylindrical space defined therein, a refrigerant introduction pipe for introducing refrigerant into the shell, a refrigerant discharge pipe for discharging the refrigerant out of the shell, and oil-drop growth accelerating member for accelerating growth of oil drops contained in the refrigerant flowing in the shell.

Oil separator for air conditioners

Growing community of inventors

Incheon-si, South Korea

Baik Young Chung