Dispenser cartridge for the cooled storage and dispensing of liquid or semi-liquid foodstuffs and dispenser machine for the use of such a dispenser cartridge

1. A dispenser cartridge ( 10 ) for cooled storage and dispensing of liquid or semi-liquid foodstuffs, the dispenser cartridge being configured to be replaceably received in a cartridge receiving space ( 4 ) of a dispenser machine ( 1 ) equipped with cooling elements and fans ( 40 , 41 ), wherein the dispenser cartridge is formed from two thermoplastic cartridge shells ( 11 , 12 ) which are connected to one another in a hinged ( 14 ) manner and which define a receiving space ( 25 ) for a tubular bag, replaceably held therein, with a disposable pump, and the dispenser cartridge comprising means ( 15 , 16 ) for holding the tubular bag and emptying the tubular bag, wherein each of the cartridge shells ( 11 , 12 ) has, formed outwards from the receiving space ( 25 ) of the dispenser cartridge ( 10 ), a trough-shaped depression ( 29 ) which forms a cooling trough ( 30 ), the cooling trough ( 30 ) being terminated by a metal thermally conductive plate ( 18 ) that separates the cooling trough ( 30 ) from the receiving space ( 25 ), wherein each cartridge shell has an inlet port ( 26 ) configured to be plugged into an injection port ( 27 ) of a dispenser machine ( 1 ) and to conduct a cooled air into the cooling trough ( 30 ), wherein each inlet port ( 26 ) has a projection extending from a respective one of the cartridge shells ( 11 , 12 ), wherein each projection defines an opening which is configured to allow the cooled air to pass therethrough, and wherein each cartridge shell also has ventilation openings ( 33 ) configured to allow the cooled air to escape from the cooling trough ( 30 ).

2. The dispenser cartridge according to claim 1 , characterized in that one of the cooling troughs ( 30 ) has a rectangular form and one of the thermally conductive plates ( 18 ) covers one of the cartridge shells towards the receiving space ( 25 ) for at least 75% of the width and at least 50% of the height.

3. The dispenser cartridge according to claim 1 , characterized in that a depth of one of the cooling troughs ( 30 ) corresponds to a maximum of twice a thickness of one of the thermally conductive plates ( 18 ).

4. The dispenser cartridge according to claim 1 , characterized in that a base of one of the cooling troughs ( 30 ) is surrounded by a circumferential wall ( 32 ) directed from the inside outwards and the base forms a plate part ( 31 ) of the dispenser cartridge ( 10 ), which plate part is offset outwards from the receiving space ( 25 ) for the tubular bag.

5. The dispenser cartridge according to claim 4 , characterized in that the ventilation openings ( 33 ) of one of the cartridge shells are integrally formed in a region of the circumferential wall ( 32 ) and, in a position of use of the dispenser cartridge ( 10 ), are located above and on a side, which is arranged opposite the inlet ports ( 26 ).

6. The dispenser cartridge according to claim 1 , characterized in that the inlet ports ( 26 ) are formed on a front end face of each cartridge shell ( 11 , 12 ).

7. The dispenser machine ( 1 ) for receiving a plurality of dispenser cartridges ( 10 ) according to claim 1 , wherein the dispenser machine ( 1 ) has a housing ( 2 ) having a front door ( 3 ) for opening a cartridge receiving space ( 4 ) configured to receive and removably hold one or more of the dispenser cartridges ( 10 ), wherein the housing ( 2 ) has a rear wall ( 5 ) and, below the front door ( 3 ), for each dispenser cartridge ( 10 ), an outlet ( 9 ) for the cooled foodstuff, characterized in that the rear wall ( 5 ) has the injection ports ( 27 ), which are configured to receive the inlet ports ( 26 ) of the dispenser cartridges ( 10 ), wherein the rear wall ( 5 ) also has suction openings ( 28 ) from which a waste air from the cartridge receiving space ( 4 ) is recirculatably cooled via heat exchangers ( 42 , 43 ) and returned into the dispenser cartridges ( 10 ) through the injection ports ( 27 ) and the inlet ports ( 26 ) as the cooled air.

8. The dispenser machine according to claim 7 , characterized in that an air-guiding housing ( 46 , 47 ) is positioned over the suction openings ( 28 ) and one of the injection ports ( 27 ), wherein at least one fan ( 40 , 41 ), a heat exchanger ( 42 , 43 ) and at least one electrothermic cooling element ( 44 , 45 ) are arranged in the air-guiding housing ( 46 , 47 ).

9. The dispenser machine according to claim 8 , characterized in that the at least one electrothermic cooling element ( 44 , 45 ) is a Peltier element.

10. The dispenser machine according to claim 9 , characterized in that a hot-side heat exchanger ( 48 ) is configured to guide an ambient air by means of a cooling blower ( 49 ) and abuts against a hot side of the Peltier element.

11. The dispenser machine according to claim 7 , characterized in that a volume of the cartridge receiving space ( 4 ) minus a maximum volume of the dispenser cartridges ( 10 ) to be received in the cartridge receiving space ( 4 ) corresponds to less than 10% of the volume of the cartridge receiving space ( 4 ).

12. The dispenser machine according to claim 7 , characterized in that a volume of the cartridge receiving space ( 4 ) minus a maximum volume of the dispenser cartridges ( 10 ) to be received in the cartridge receiving space ( 4 ) corresponds to between 3 and 8% of the volume of the cartridge receiving space ( 4 ).

13. The dispenser machine according to claim 7 , characterized in that the cartridge receiving space ( 4 ) has space for three dispenser cartridges ( 10 ).

14. The dispenser machine according to claim 8 , characterized in that a temperature sensor is arranged in the air-guiding housing ( 46 , 47 ) or in the cartridge receiving space ( 4 ), wherein the temperature sensor is configured to measure the temperature of the cooled air flowing into the dispenser cartridges ( 10 ) through the injection ports ( 27 ) and the inlet port ( 26 ) or the waste air flowing out of the cartridge receiving space ( 4 ) through the suction openings ( 28 ), and wherein the electrothermic cooling element ( 44 , 45 ) is configured to be activated if an adjustable limit temperature is exceeded.

15. The dispenser machine according to claim 7 , wherein projections of the inlet ports ( 26 ) fit positively in the injection ports ( 27 ).

16. The dispenser machine according to claim 7 , wherein the projections of the inlet ports ( 26 ) fit in a sealing manner in the injection ports ( 27 ).

17. The dispenser machine of claim 7 , wherein the projections of the inlet ports ( 26 ) project outwardly from the cartridge ( 10 ), and wherein the injection ports ( 27 ) are apertures that are sized and shaped to receive the projections of the inlet ports ( 26 ).

18. The dispenser machine of claim 7 , wherein each shell includes an inlet port ( 26 ), such that the two inlet ports ( 26 ) are arranged next to one another when the shells are brought together.