| 摘要 |
A refrigeration cycle of an air conditioner is provided to form a refrigerating box in an indoor unit and mount a second condenser and second and third evaporators in the refrigerating box, thereby improving cooling efficiency. A refrigeration cycle of an air conditioner includes a refrigerating box(200) in which a second condenser(170) and second and third evaporator(190,191) are mounted. The second condenser condenses gas refrigerant to liquid refrigerant by passing refrigerant discharged from a compressor(110) through a second conversion valve(131) by operating a first conversion valve(121). The liquid refrigerant of middle temperature and high pressure discharged from the second condenser passes through a third conversion valve(132), a receiver tank(130), and a drier(140), a fourth conversion valve(151) and is decompressed by a second expansion valve(180). The decompressed refrigerant is evaporated at the room temperature by the second and third evaporators.
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