Abstract: A self-cooling device to cool a beverage, the device comprising a miniaturised scroll compressor, a heat sink, an electric motor, an expansion valve allowing passage of a refrigerant into the network of capillaries before entering back into the reservoir, a power source of electrical energy, several temperature gauging devices, a micro-processor, a simple user interface for temperature setting, and an on/off switch. The miniaturised scroll compressor pumps the refrigerant through itself and then through a heat sink (the second heat exchange) and then through an expansion valve through the network of capillaries running inside the walls of the container, whereby a first heat exchange takes place. The refrigerant then returns to the reservoir.

Abstract: A self-cooling device to cool a beverage, the device comprising a miniaturised scroll compressor, a heat sink, an electric motor, an expansion valve allowing passage of a refrigerant into the network of capillaries before entering back into the reservoir, a power source of electrical energy, several temperature gauging devices, a micro-processor, a simple user interface for temperature setting, and an on/off switch. The miniaturised scroll compressor pumps the refrigerant through itself and then through a heat sink (the second heat exchange) and then through an expansion valve through the network of capillaries running inside the walls of the container, whereby a first heat exchange takes place. The refrigerant then returns to the reservoir.