Refrigerant liquid-gas separator with electronics cooling

A refrigerant system, comprising:

• a liquid-gas separator device including:
• a refrigeration section configured to couple to a refrigeration loop, the refrigeration section comprising:
• a refrigerant inlet positioned on a first side of the liquid-gas separator and configured to receive refrigerant from the refrigeration loop;
• a refrigerant outlet positioned on the first side of the liquid-gas separator and configured to release vapor refrigerant to the refrigeration loop;
• a cavity coupled to the refrigerant inlet and the refrigerant outlet, the cavity configured to separate liquid refrigerant from vapor refrigerant, the cavity comprising an inlet sub-cavity, an outlet sub-cavity, and a cap sub-cavity, wherein:
• the inlet sub-cavity is coupled to the refrigerant inlet;
• the outlet sub-cavity is coupled to the refrigerant outlet;
• the outlet sub-cavity is separated from the inlet sub-cavity by a first wall;
• and
• the cap sub-cavity is positioned on a second side of the liquid-gas separator device, opposite the first side, and fluidly couples the inlet sub-cavity with the outlet sub-cavity;
• and
• an electronics board mounted on a second wall of the refrigeration section such that the electronics board spans, and is thermally coupled to, at least a portion of the inlet sub-cavity and at least a portion of the outlet sub-cavity so that, in use, heat from the electronics board is transferred to the refrigerant.