Air conditioner and control method thereof

The present invention relates to an air conditioner. According to the present invention, in the air conditioner, during the heating operation, a first refrigerant is circulated through a compressor, a second four-way valve, a first heat exchanger, a variable expansion valve, a second heat exchanger,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SONG CHI WOO, YONGCHEOL SA, KIM KAK JOONG, SHIN ILYOONG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BLASTING CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS COMBINED HEATING AND REFRIGERATION SYSTEMS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PRINTED CIRCUITS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	The present invention relates to an air conditioner. According to the present invention, in the air conditioner, during the heating operation, a first refrigerant is circulated through a compressor, a second four-way valve, a first heat exchanger, a variable expansion valve, a second heat exchanger, and a first four-way valve in order. The air conditioner comprises: an outdoor unit connected to circulate the first refrigerant through the compressor, a hot gas valve, the second heat exchanger, and the first four-way valve in order during a defrosting operation; and an indoor unit in which a second refrigerant circulates. The second refrigerant circulating inside the indoor unit is heat-exchanged with the first refrigerant passing through the first heat exchanger. The defrost operation can be operated by opening the hot gas valve without switching the four-way valve. 본 발명은 난방운전시, 제1냉매가 압축기, 제2사방밸브, 제1열교환기, 가변팽창밸브, 제2열교환기 및 제1사방밸브를 순서로 순환되고, 제상운전시, 상기 제1냉매가 상기 압축기, 핫가스밸브, 상기 제2열교환기 및 상기 제1사방밸브를 순서로 순환되도록 연결된 실외유닛; 및 내부에 제2냉매가 순환하는 실내유닛을 포함하고, 상기 실내유닛 내부를 순환하는 상기 제2냉매는 상기 제1열교환기를 통과하는 상기 제1냉매와 열교환하는 공기조화기에 관한 것이다. 사방밸브의 절환없이 핫가스밸브를 개방하여 제상운전을 작동시킬 수 있다.