Beverage cooling device for preparing cooled beverage when paired with a beverage preparation machine

1. A beverage cooling device for rapidly cooling a beverage and serving the beverage when cooled, after having been dispensed from a beverage preparation machine in the device, the beverage cooling device comprising:

a heat exchange container comprising a closed chamber containing a phase-change coolant capable of accumulating and restoring thermal energy and a beverage cavity with an open upper end for receiving the beverage, the closed chamber and cavity being separated by at least one heat conductive inner wall, and the chamber being further closed by an outer wall;

a control unit comprising a communication module arranged for communicating to the beverage preparation machine information representative of the presence of the device at proximity of the beverage preparation machine and/or of a temperature state of the coolant in the chamber;

a lid removably arranged for liquid-tightly closing the open upper end of the heat exchange container, a user interface being arranged on the lid;

a liquid frothing assembly in the lid or in the bottom of the heat exchange container;

an electrical energy management unit comprising a thermoelectric module arranged in thermal contact with the outer wall of the chamber for generating electric energy to the control unit, as a function of the temperature difference between a first heat conductive wall of the module in contact with the outer wall of the chamber and a second heat conductive wall of the module distant to the first wall, the electrical energy being at least partially used to power the communication module to generate communication signal; and

a heat insulation sheath covering at least partially the outer wall of the heat exchange container,

wherein the beverage cooling device is arranged to be handled separately from the beverage preparation machine.

2. The beverage cooling device according to claim 1 , wherein the communication module is a wireless communication module.

3. The beverage cooling device according to claim 1 , wherein the electrical energy management unit comprises at least one electrical energy accumulator.

4. The beverage cooling device according to claim 1 , wherein a heat sink element is connected to the second face of the thermoelectric module.

5. The beverage cooling device according to claim 1 , comprising:

at least one temperature sensor arranged for sensing the temperature of surface of the container and

a battery for powering the communication module.

6. The beverage cooling device according to claim 1 , comprising a user interface arranged for displaying a characteristic selected from the group consisting of: a temperature information related to the thermoelectric module or temperature sensor, a beverage volume, a selectable recipe of the beverage preparation device, and identification data.

7. The beverage cooling device according to claim 1 , wherein the heat insulation sheath is free of permanent connection means with the container to be removably arranged with the container such that it can be removed before being frozen.

8. The beverage cooling device according to claim 1 , comprising a control and energy management unit, comprising the control unit and the electrical energy management unit, which is positioned in the bottom of the sheath or alternatively on the bottom of the sheath and between the sheath and the container.

9. The beverage cooling device according to claim 8 , comprising a lower control sub-assembly and an upper cooling subassembly which are removably connected to each other; the lower control sub-assembly comprising the control and energy management unit and a lower part of the heat insulation sheath and the upper cooling subassembly comprising the heat exchange container and an upper part of the heat insulation sheath.

10. A beverage preparation system comprising a beverage cooling device for rapidly cooling a beverage and serving the beverage when cooled, after having been dispensed from a beverage preparation machine in the device, comprising a heat exchange container comprising a closed chamber containing a phase-change coolant capable of accumulating and restoring thermal energy and a beverage cavity with an open upper end for receiving the beverage; the closed chamber and cavity being separated by at least one heat conductive inner wall; the chamber being further closed by an outer wall; wherein the device is arranged to be handled separately from the beverage preparation machine, and the device comprises a control unit comprising a communication module arranged for communicating to the beverage preparation machine information representative of the presence of the device at proximity of the beverage preparation machine and/or of a temperature state of the coolant in the chamber and a beverage preparation machine, wherein the beverage preparation machine comprises:

a beverage preparation unit arranged for receiving a beverage capsule or pod containing beverage ingredients;

a water feed unit for supplying heated water in the beverage capsule for mixing with the beverage ingredients contained therein;

a beverage outlet arranged in liquid communication with the beverage preparation unit for dispensing the beverage in the cooling device;

a control unit for controlling the water feed unit and,

the control unit is arranged for adjusting at least one preparation parameter of the water feed unit or beverage preparation unit as a result of the signal(s) received by or exchanged with the communication module of the beverage cooling device.