Air conditioner

Abstract

An air conditioner has a refrigerant circuit and a blower. A refrigerant flow path switching mechanism is configured to switch to a first switching state to allow refrigerant to flow through a reheater, a second expansion valve, and a cooler in this order in a refrigerant circuit. The refrigerant flow path switching mechanism is configured to switch to a second switching state to allow refrigerant to flow through the reheater, the second expansion valve, and the cooler in this order in the refrigerant circuit. The reheater and the cooler are configured to allow air blown by the blower to pass through the cooler and then pass through the reheater during either of the first switching state and the second switching state.

1 . An air conditioner comprising:
 a refrigerant circuit comprising a compressor, a refrigerant flow path switching mechanism, an outdoor heat exchanger, a first expansion valve, a reheater, a second expansion valve, and a cooler, and configured to allow refrigerant to circulate in the refrigerant circuit; and   a blower configured to blow air to the reheater and the cooler,   the refrigerant flow path switching mechanism being configured to switch between a first switching state and a second switching state,   the refrigerant flow path switching mechanism being configured to switch to the first switching state to allow the refrigerant to flow through the compressor, the refrigerant flow path switching mechanism, the outdoor heat exchanger, the first expansion valve, the refrigerant flow path switching mechanism, the reheater, the second expansion valve, the cooler, and the refrigerant flow path switching mechanism in this order in the refrigerant circuit,   the refrigerant flow path switching mechanism being configured to switch to the second switching state to allow the refrigerant to flow through the compressor, the refrigerant flow path switching mechanism, the reheater, the second expansion valve, the cooler, the refrigerant flow path switching mechanism, the first expansion valve, the outdoor heat exchanger, and the refrigerant flow path switching mechanism in this order in the refrigerant circuit, and   the reheater and the cooler being configured to allow the air blown by the blower to pass through the cooler and then pass through the reheater during either of the first switching state and the second switching state,   wherein the refrigerant flow path switching mechanism is a six-way valve.   
     
     
         2 . (canceled) 
     
     
         3 . (canceled) 
     
     
         4 . The air conditioner according to  claim 1 , wherein
 the reheater comprises a plurality of first heat transfer flow paths arranged in parallel lines,   the cooler comprises a plurality of second heat transfer flow paths arranged in parallel lines, and   the number of the parallel lines of the plurality of second heat transfer flow paths of the cooler is larger than the number of the parallel lines of the plurality of first heat transfer flow paths of the reheater.   
     
     
         5 . The air conditioner according to  claim 1 , wherein
 the reheater comprises a first fin,   the cooler comprises a second fin, and   a contact angle between a surface of the second fin of the cooler and water is smaller than a contact angle between a surface of the first fin of the reheater and water.   
     
     
         6 . The air conditioner according to  claim 1 , further comprising:
 an outdoor unit comprising the compressor and the outdoor heat exchanger;   an indoor unit comprising the reheater and the cooler;   a high-pressure pipe; and   a low-pressure pipe, wherein   the outdoor unit and the indoor unit are connected to each other by the high-pressure pipe and the low-pressure pipe.   
     
     
         7 . The air conditioner according to  claim 1 , further comprising a sensor on a pipe that connects the first expansion valve and the refrigerant flow path switching mechanism to each other, wherein
 the sensor is configured to measure a pressure or a temperature of the refrigerant in the pipe.   
     
     
         8 . The air conditioner according to  claim 1 , wherein the refrigerant is a refrigerant mixture. 
     
     
         9 . The air conditioner according to  claim 8 , wherein the reheater and the cooler are configured to allow the refrigerant to flow in an opposite direction to a direction in which the air flows.