Air conditioner

An air conditioner comprising:

• a main refrigerant circuit including a compressor, a heat source side heat exchanger, a first expansion valve, and a utilization side heat exchanger and configured such that refrigerant flows in the main refrigerant circuit;
• a sub refrigerant circuit including a cooling member configured such that refrigerant branched from the main refrigerant circuit flows in the cooling member and configured such that refrigerant branched from the main refrigerant circuit flows in the sub refrigerant circuit;
• and
• a heat generator to be cooled by the cooling member,
• wherein a first pipe in which part of refrigerant discharged from the compressor flows is connected to the cooling member of the sub refrigerant circuit,
• wherein the sub refrigerant circuit includes a second pipe branched from the main refrigerant circuit that is embedded into the cooling member,
• wherein a second expansion valve is disposed on the second pipe, and
• wherein the first pipe connects to the second pipe of the sub refrigerant circuit between the cooling member and the second expansion valve.