In this paper

a refrigerant heat sink for the electronic control system of an inverter air conditioner is designed according to the characteristics of an inverter heat pump unit and the principle of refrigeration cycle. The contact arc between the U-shaped heat dissipation device and the refrigerant piping was a 3/4 arc structure

and the contact point was tangent at a 45° bevel. The temperature of the refrigerant passing through the heat dissipation device was in the optimal temperature range of 40 to 50 °C. The performance of the heat dissipation device was comparedexperimentallywith natural cooling under the standard working conditions (ambient temperature of 43 °C and outlet water temperature of 15 °C).The heat generated by the inverter's power device can be removed by the refrigerant heat sink

and the cooling effect was apparent. The temperature difference between the control component of the inverter and the refrigerant inlet temperature was both calculated and tested

and the effect of installing a refrigerant heat sink was verified.