Air conditioner outdoor unit and air conditioner

Abstract

An air conditioner outdoor unit includes: a compressor; a heat source-side heat exchanger connected to the compressor; an oil separator disposed between a refrigerant discharge opening of the compressor and the heat source-side heat exchanger configured to separate a refrigerant oil from a refrigerant discharged from the compressor; and a first three-way valve fitted to a refrigerant pipe between the oil separator and the heat source-side heat exchange.

What is claimed is: 
     
         1 . An air conditioner outdoor unit comprising:
 a compressor;   a heat source-side heat exchanger connected to the compressor;   an oil separator disposed between a refrigerant discharge opening of the compressor and the heat source-side heat exchanger configured to separate a refrigerant oil from a refrigerant discharged from the compressor; and   a first three-way valve fitted to a refrigerant pipe between the oil separator and the heat source-side heat exchanger.   
     
     
         2 . The air conditioner outdoor unit according to  claim 1 , further comprising a flow path switching unit for switching the direction of flow of refrigerant in the heat source-side heat exchanger,
 wherein:   the flow path switching unit disposed between the heat source-side heat exchanger and the oil separator; and   the first three-way valve is disposed on a refrigerant pipe between the flow path switching unit and the oil separator.   
     
     
         3 . The air conditioner outdoor unit according to  claim 2 , further comprising:
 an oil retrain pipe with one end connected to the oil separator and the other end connected to a refrigerant pipe connected to a refrigerant intake opening of the compressor; and   a second three-way valve disposed between a connection part of the refrigerant pipe and the oil return pipe, and the flow path switching unit.   
     
     
         4 . The air conditioner outdoor unit according to  claim 3 , wherein:
 the first three-way valve includes a first port connected to the oil separator, a second port connected to the flow path switching unit, and a third port which is a service port; and   the second three-way valve includes a first port connected to the flow path switching unit, a second port connected to the refrigerant intake opening of the compressor, and a third port which is a service port.   
     
     
         5 . An air conditioner comprising:
 the outdoor unit according to  claim 1 ; and   an indoor unit connected to the outdoor unit.