Samsung Electronics Co., Ltd.

Jejin Lee

Jaeyang Lee

Taeil Kim

Dongil Jung

Byoungguk Lim

Sangho Yoo

Sangyoon Han

Dongkyu Lee

Yonghee Jang

Sukho Lee

Changyong Lee

Hyeongseok Lim

Gwangchel Jeong

Kwangsik Han

Donghan Ko

Jongwon Bak

Hyunkook Kim

Changhee Han

An air conditioner including: a compressor; a heat exchanger fluidly connected to the compressor; a pressure sensor provided in a first flow path connecting an outlet of the compressor to an inlet of the first heat exchanger; a temperature sensor provided in a second flow path connected to an outlet of the heat exchanger; and a processor connected to the compressor, the pressure sensor, and the temperature sensor. The processor configured to: acquire a reference index value based on a first reference pressure measured by the pressure sensor and a first reference temperature measured by the temperature sensor, acquire a measurement index value based on a first measurement pressure measured by the pressure sensor and a first measurement temperature measured by the temperature sensor, and display a shortage of a refrigerant of the air conditioner based on the reference index value and the measurement index value.

Air conditioner and controlling method thereof

An air conditioner, and a control method, including a compressor to compress a refrigerant; an outdoor heat exchanger; a first four-way valve between a discharge port of the compressor and an upper inlet of the outdoor heat exchanger; a second four-way valve between the discharge port of the compressor and a lower inlet of the outdoor heat exchanger; and a controller electrically connected to the compressor and the first four-way valve and the second four-way valve to control the first and second four-way valves to perform a first defrosting operation which defrosts an upper and a lower portion of the outdoor heat exchanger during a heating operation, and control the first and second four-way valves to perform a second defrosting operation which operates the upper portion as an evaporator, and operates the lower portion as a condenser, based on a detected need for additional defrosting of the lower portion.

Air conditioner with defrosting operation and method for controlling the same

An air conditioner and control method for reducing power consumption by controlling pressure or temperature of a refrigerant. The air conditioner includes a compressor compressing a refrigerant and discharging a high pressure refrigerant gas; an outdoor heat exchanger in which the high pressure refrigerant gas is changed to a refrigerant fluid; an outdoor fan to blow outdoor air to the outdoor heat exchanger; a decompressor decompressing the refrigerant fluid into a low pressure state; an indoor heat exchanger changing the decompressed low pressure refrigerant fluid to a refrigerant gas; and a controller configured to control pressure or temperature of the refrigerant based on an operation condition including at least two of a first condition determined based on an installation environment, a second condition determined based on an optimal compression ratio of the compressor, a third condition determined based on outdoor temperature, and a fourth condition set as a default value.

Air conditioner and control method thereof

Growing community of inventors

Suwon-si, South Korea

Jejin Lee