Storage space of a vehicle with a freezer function

Abstract

Storage space (1) of a vehicle for holding frozen products and for producing ice cubes with an evaporator arrangement (1.1) for realising a freezing function, wherein - the evaporator arrangement (1.1) together with a refrigerant compressor (1.2), a deep-freeze refrigeration circuit condenser (1.3) and an expansion device (1.4) forms a deep-freeze refrigeration circuit (1.0), and - the vehicle has a refrigerant circuit (2) with an air conditioning condenser (2.1) which releases heat from the refrigerant circuit (2) to a vehicle environment, characterized in that - the refrigerant circuit (2) of the vehicle comprises a chiller (2.3) with a coolant circuit (2.31), wherein the coolant circuit (2.31) is thermally coupled to at least one heat-generating component (2.32) of the vehicle, and - the deep-freeze refrigeration circuit condenser (1.3) is an indirect condenser or an indirect gas cooler, which is a coolant-refrigerant heat exchanger (1.31) and is thermally coupled to the air conditioning condenser (2.1) by a coolant-side arrangement in the coolant circuit (2.31) of the chiller (2.3).

Description

The invention relates to a storage space of a vehicle having an evaporator arrangement for implementing a cryogenic function according to the preamble of claim 1.A generic storage space of a vehicle is known from WO 01 / 36884 A1. This storage space is formed by side walls which are designed as evaporation cooling surfaces and in which refrigerant-conducting lines are integrated, which together with a refrigerant compressor, a condenser and an expansion element form a refrigeration circuit. With such a storage space, ice cubes consisting mainly of water are to be produced.This storage space known from WO 01 / 36884 A1 is further surrounded by further evaporation cooling surfaces to form an intermediate space, wherein these further evaporation cooling surfaces also have refrigerant-conducting lines. If this arrangement is arranged in a cooling space, for example in a cooling box of a vehicle, an air stream to be conditioned is guided through this intermediate space, which air stream is cooled both on the evaporation cooling surfaces of the storage space and on the further evaporation cooling surfaces surrounding the latter and is blown into the cooling space by means of a fan.An air conditioning system having a first refrigerant circuit and a second refrigerant circuit of the generic type is also known from the post-published DE 10 2017 109 311 A1, with which sufficient heat outputs can be provided for vehicles with a large cooling requirement, for example for vehicles with an electric or a combined electric and internal combustion engine drive. The first refrigerant circuit is formed in the flow direction of the refrigerant with a compressor, a first refrigerant-refrigerant heat exchanger operated as a condenser for the refrigerant of the first refrigerant circuit, at least one expansion element and a first refrigerant-refrigerant heat exchanger of a refrigerant circuit operated as an evaporator. The second refrigerant circuit has, in the flow direction of the refrigerant, a compressor, a second refrigerant-coolant heat exchanger of a coolant circuit operated as a condenser / gas cooler, at least one first expansion element and the first refrigerant-refrigerant heat exchanger operated as an evaporator for the refrigerant of the second refrigerant circuit.Furthermore, KR 10 2018 0 003 987 A also discloses an air conditioning system of a vehicle having a first refrigerant circuit for conditioning an inlet air of the passenger compartment of the vehicle and a second refrigerant circuit for cooling drive components, for example for cooling a battery of the vehicle. The two refrigerant circuits are thermally connected via a coolant circuit, with which heat is absorbed from the second refrigerant circuit and is emitted either to the ambient air of the vehicle or to the first refrigerant circuit.An air conditioning system, in particular for air conditioning buses, is known from DE 103 26 323 B3. This air conditioning system comprises a refrigeration circuit comprising a compressor drivable by an internal combustion engine, a condenser, an expansion element and an evaporator. Furthermore, this air conditioning system comprises a storage evaporator which can be discharged when the internal combustion engine is not running and can be charged when the internal combustion engine is running. In addition to the compressor and the condenser, a further compressor and a further condenser are provided, which together with the storage evaporator form a second refrigeration circuit for charging the storage evaporator, wherein the second compressor can likewise be driven by the internal combustion engine.According to DE 10 2016 112 089 A1, an air conditioning system for a vehicle is operated with a first refrigerant circuit and a second refrigerant circuit for the independent conditioning of air mass flows to be supplied from a passenger compartment. The refrigerant circuits each have a compressor, a heat exchanger operated as a condenser / gas cooler, at least one expansion element and at least one heat exchanger operated as an evaporator. The air conditioning system is also designed with at least one first coolant circuit and one second coolant circuit. The condenser / gas cooler of the first refrigerant circuit is designed as a refrigerant-air heat exchanger for transferring heat to the ambient air, and the condenser / gas cooler of the second refrigerant circuit is designed as a refrigerant-coolant heat exchanger for transferring heat to the first coolant circuit, wherein the first coolant circuit is configured as a low-temperature coolant circuit.DE 10 2010 012 464 A1 discloses a heating device for heating a passenger compartment of a vehicle, in particular an electric vehicle, by means of an air flow guided into the vehicle interior, having a latent heat accumulator which, for the heat accumulator, has a phase change material which heats the air flow with the emission of heat. The latent heat store is assigned an electric heating element, with which it can be heated up for heat storage.Furthermore, DE 33 33 012 A1 describes a cryogenic cooling box for a vehicle having an evaporator arrangement which, together with an expansion element, is connected in a series circuit in parallel with an evaporator branch of a refrigerant circuit, which branch serves for air conditioning a vehicle interior, having a refrigerant compressor and an external condenser. Switching means are provided in the refrigerant circuit, with which the evaporator arrangement of the cryogenic box can be operated either without the evaporator branch or simultaneously with the same. In the case of joint operation of both the evaporator arrangement of the cryogenic box and of the evaporator branch, the cooling capacity in the evaporator branch is reduced in accordance with the required cooling capacity of the cryogenic box. The external condenser of the refrigerant circuit is arranged on the roof of the vehicle designed as a utility vehicle.U.S. Pat. No. 4,483,151 A also describes a cooling and freezing unit for a vehicle having an ice cube preparation function. This cooling and freezing unit comprises an evaporator with an associated expansion element, wherein the series connection of these two components is connected in parallel to two evaporator branches of a refrigerant circuit with a compressor and an external condenser. An evaporator branch consists of a front evaporator with an associated expansion element, the further evaporator branch comprises a rear evaporator with an associated expansion element. The evaporator of the cooling and freezing unit has a first evaporator section for a freezing chamber of the cooling and freezing unit and a second evaporator section for a cooling chamber of the cooling and freezing unit.A cooling and freezing unit for a vehicle having a two-part evaporator for a freezing and cooling function is also described in U.S. Pat. No. 4,748,823 A. This two-part evaporator is also connected to a refrigerant circuit of the vehicle having a refrigerant compressor and an external condenser, in that the two-part evaporator together with an expansion element is connected in parallel with an evaporator branch made of an evaporator used for air conditioning a vehicle interior and having an associated expansion element.The object of the invention is to specify a storage space of a vehicle of the type mentioned at the beginning with an improved deep-cooling function for storing deep-cooling products and with which, in particular, an ice cube preparation function can also be realized.This object is achieved by a storage space having the features of claim 1.Such a storage space of a vehicle for receiving frozen products and for producing ice cubes, having an evaporator arrangement for realizing a frozen function, in whichthe evaporator arrangement together with a refrigerant compressor, a cryogenic refrigeration circuit condenser or cryogenic refrigeration circuit gas cooler and an expansion element forms a cryogenic refrigeration circuit, and the vehicle has a refrigerant circuit with a climate condenser which releases heat from the refrigerant circuit to the vehicle environment, is characterized according to the invention in thatthe refrigerant circuit of the vehicle has a chiller having a coolant circuit, the coolant circuit being thermally coupled to at least one heat-generating component of the vehicle, andthe cryogenic refrigeration circuit condenser is an indirect condenser or an indirect gas cooler which is a coolant-refrigerant heat exchanger and is thermally coupled to the air conditioning condenser by a coolant-side arrangement in the coolant circuit of the chiller.In such a storage space, it is possible to achieve temperatures up to at least -20° C. when R134a and R1234yf are used as the refrigerant for the cryogenic refrigeration cycle, or up to -40° C. with R744 as the refrigerant. Hydrocarbons, such as, for example, hydrocarbons, are also used. Propane (R290) is suitable for use as a refrigerant in the cryogenic refrigeration cycle.Thus, with such a storage space according to the invention, a sufficiently cooled space is provided within a vehicle for storing heat-sensitive foods and for generating ice cubes for beverage cooling.In this case, the cryogenic cooling circuit condenser, as an indirect water-cooled condenser or an indirect water-cooled gas cooler, is thermally connected to a coolant circuit of a chiller, which constitutes a battery cooling circuit, for example, and is thus indirectly thermally connected to the refrigerant circuit of the vehicle.This results in a cold circuit cascade connection withheat sink temperatures of generally below 20° C., in particular up to -20° Csteady-state cooling powers of less than 100 W,non-stationary cooling powers of up to 1 kW, anda full functionality even during a heat pump operation of the refrigerant circuit of the vehicle.According to a preferred embodiment of the invention, the cryogenic refrigeration circuit has an internal heat exchanger, whereby the efficiency of the cryogenic refrigeration circuit is increased.Furthermore, it is preferably provided that the cryogenic refrigeration circuit has a refrigerant collector. This serves to increase the adjustable temperature range for the evaporator arrangement of the cryogenic refrigeration circuit.A further advantageous development of the invention provides that the evaporator arrangement is designed as an evaporation cooling surface of the storage space. This leads to better utilization of the available storage space used as a cooling space.According to another preferred embodiment of the invention, the evaporator arrangement is designed as an air evaporator with a blower in the storage space, whereby an extremely cost-effective solution is achieved.According to a further advantageous embodiment of the invention, the storage space is designed in such a way that defrosting thereof takes place automatically during the operating standstill of the vehicle, in particular when the refrigerant circuit is switched off. Water draining devices are provided for this purpose.In order to realize a defrosting function independently of the operating state of the vehicle and / or of the refrigerant circuit, a last preferred development of the invention provides that the evaporator arrangement has a heating device, with which, for example, its evaporation cooling surfaces can be heated for a short time in order to allow the ice to melt off at these evaporation cooling surfaces. A water drain device is of course also provided for the melt water.Further advantages, features and details of the invention will become apparent from the following description of a preferred embodiment. The following are shown: FIG. 1 shows a deep-cooling refrigeration circuit of a storage space, which is thermally coupled to a battery cooling circuit of a refrigerant circuit of a vehicle, as a first embodiment of the invention, FIG. 2 shows a cryogenic refrigeration circuit of a storage space (not part of the invention) thermally coupled to a refrigerant circuit of a vehicle, and FIG. 3 shows a deep-cooling cooling circuit of a storage space (not part of the invention) thermally coupled to a low-temperature cooling circuit of a vehicle.FIGS. 1 to 3 each show a storage space 1 of a vehicle (not shown in the figures) which is designed as a deep-cooling box and is schematically shown and has a deep-cooling function realized by means of an evaporator arrangement 1.1, wherein this storage space 1 serves and is insulated for receiving deep-cooling products and for producing ice cubes for beverage cooling.Such a storage space 1 can be arranged either in the glove compartment, in a front or rear center console compartment or in a luggage compartment at a rear or front trunk, wherein, when arranged in the trunk, it is partially or completely filled by the deep-cooling box.According to FIGS. 1 to 3, the evaporator arrangement 1.1 of the storage space 1 together with a refrigerant compressor 1.2, a cryogenic refrigeration circuit condenser 1.3 designed as an indirect condenser or indirect gas cooler, a refrigerant collector 1.6 designed as a high-pressure collector and an expansion element 1.4 assigned to the evaporator arrangement 1.1 in its function as an evaporator form a cryogenic refrigeration circuit 1.0. The expansion element 1.4 can be designed as an electrical expansion valve, wherein refrigerant flows through the cryogenic refrigeration circuit 1.0 in the order listed for the components.Furthermore, this cryogenic refrigeration circuit 1.0 contains an internal heat exchanger 1.5, wherein the refrigerant from the evaporator arrangement 1.1 is supplied to the refrigerant compressor 1.2 via a low-pressure section of the internal heat exchanger 1.5, and the refrigerant flows from the refrigerant collector 1.6 via a high-pressure section of the internal heat exchanger 1.5 and the expansion element 1.4 into the evaporator arrangement 1.1.To generate evaporation temperatures at the evaporator arrangement 1.1 of the storage space 1 of at least -20° C., R134a and R1234yf can be used as refrigerant. The cryogenic refrigeration circuit 1.0 to -40° C. would be operable with the refrigerant R744 (CO2).Furthermore, hydrocarbons would also be usable in accordance with their thermodynamic properties and the refrigerant mass limitation on account of the cabin volume of the vehicle in the event of leakage, for example with propane (R290) having a maximum of 8 g per m 3 cabin volume.The cryogenic refrigeration circuit 1.0 according to FIGS. 1 to 3 has a high-pressure-side refrigerant collector 1.6, since all known refrigerants, including R744, are operated subcritically on account of the low heat sink temperatures in the storage space 1. In the case of higher heat sink temperatures and supercritical refrigerants, a low-pressure refrigerant accumulator would have to be provided as accumulator in the cryogenic refrigeration circuit 1.0-at least for R744. Such an accumulator would be to be arranged between the evaporator arrangement 1.1 and the low-pressure section of the internal heat exchanger 1.5.According to FIGS. 1 and 2, the cryogenic refrigeration circuit 1.0 is thermally coupled to a refrigerant circuit 2 of the vehicle via the cryogenic refrigeration circuit condenser 1.3 as an indirect condenser or the indirect gas cooler. With this refrigerant circuit 2, an air conditioner for air conditioning the vehicle interior is realized.The refrigerant circuit 2 according to FIGS. 1 and 2 is of identical construction and comprises an evaporator branch 2.20, which consists of a series circuit of an evaporator 2.2 and an expansion element V 1 assigned to the latter, an internal heat exchanger 2.5, a refrigerant compressor 2.4, an air conditioning condenser 2.1 (which can also be designed as a gas cooler) as an external condenser and a switching valve V 4 upstream of the evaporator branch 2.20. The refrigerant of the refrigerant circuit 2 flows out of the evaporator 2.2 into a low-pressure section of the internal heat exchanger 2.5 and then into the refrigerant compressor 2.4. The compressed refrigerant is fed to the air conditioning condenser 2.1, then to the refrigerant collector 2.6 and via a high-pressure section of the internal heat exchanger 2.5 and the switching valve V4 back to the evaporator branch 2.20. The expansion element V 1 assigned to the evaporator 2.2 is designed, for example, as a thermal expansion valve.Furthermore, the refrigerant circuit 2 has a chiller branch 2.30, which consists of a series circuit of a chiller 2.3 and an expansion element V 2 assigned to it, which is designed, for example, as an electrical expansion valve.The chiller branch 2.30 is connected upstream to the high-pressure section of the internal heat exchanger 2.5, while the refrigerant from the chiller 2.3 is fed directly to the suction side, bypassing the low-pressure section of the internal heat exchanger 2.5 of the refrigerant compressor 2.4.The chiller 2.3 has a coolant circuit 2.31, which is thermally coupled to an energy store designed as a battery as a heat-generating component 2.32 for cooling the latter. The coolant, for example. Water is circulated in the coolant circuit 2.31 by means of a pump 2.33.The thermal coupling of the cryogenic refrigeration circuit 1.0 to the refrigerant circuit 2 by means of the cryogenic refrigeration circuit condenser 1.3 according to FIGS. 1 and 2 will be described in detail below.According to FIG. 1, the cryogenic refrigeration circuit condenser 1.3, which is designed as an indirect condenser or indirect gas cooler, is a coolant-refrigerant heat exchanger 1.31. The coolant of the coolant circuit 2.31 of the chiller 2.3 flows through this coolant-refrigerant heat exchanger 1.31 on the coolant side. The heat is thus transferred from the storage space 1 via this coolant-refrigerant heat exchanger 1.31 to the coolant circuit 2.31 and from there by means of the chiller 2.3 to the refrigerant of the refrigerant circuit 2 and finally discharged via the air conditioning condenser 2.1 to the vehicle environment.The cryogenic refrigeration circuit 1.0 is thus thermally connected to the coolant circuit 2.31 serving as a high-voltage battery cooling circuit by means of the cryogenic refrigeration circuit condenser 1.3 designed as an indirect condenser or indirect gas cooler and is thus indirectly thermally coupled to the refrigerant circuit 2 as an air-conditioning refrigeration circuit via the heat transfer path chiller 2.3, coolant circuit 2.31 and coolant-refrigerant heat exchanger 1.31.This results in a cold circuit cascade connection with a heat sink temperature of less than 20° C., in particular up to -20° C., with a steady-state cold output of a few 100 wounds with a cooling output of up to 1 kW and with full functionality even in the case of heat pump operation of the refrigerant circuit 2.If no cooling power is required for the vehicle interior, the evaporator branch 2.20 of the refrigerant circuit 2 can be switched off by means of the switching valve V4.According to FIG. 2, a direct thermal coupling takes place by means of the cryogenic refrigeration circuit condenser 1.3 to the refrigerant circuit 2, in that this indirect condenser or indirect gas cooler is designed as a direct cascade heat exchanger, i.e. as a refrigerant-refrigerant heat exchanger 1.32. For this purpose, the refrigerant of the cryogenic refrigeration circuit 1.0 flows through this refrigerant-refrigerant heat exchanger 1.32, on the one hand, and the refrigerant of the refrigerant circuit 2, on the other hand, wherein an expansion element V 3 designed as an electrical expansion valve is connected upstream of this side of the refrigerant-refrigerant heat exchanger 1.32 in order to realize an evaporator function. The refrigerant of the refrigerant circuit 2 flows out of the high-pressure section of the inner heat exchanger 2.5 via the expansion element V 3 into the corresponding side of the refrigerant-refrigerant heat exchanger 1.32 and from there back to the suction side of the refrigerant compressor 2.4.The series connection of the refrigerant-refrigerant heat exchanger 1.32 acting as evaporator and the expansion element V3 assigned to the same is connected in parallel with the evaporator branch 2.20 and the chiller branch 2.30. It is also possible to arrange this series connection of the refrigerant-refrigerant heat exchanger 1.32 and the associated expansion element V3 in series with the evaporator branch 2.20 or the chiller branch 2.30.With this refrigerant-refrigerant heat exchanger 1.32 as a cryogenic refrigeration circuit condenser 1.3 of the cryogenic refrigeration circuit 1.0, a forced coupling to the refrigerant circuit 2 is realized, wherein the cryogenic refrigeration circuit 1.0 remains fully functional even during a heat pump operation of the refrigerant circuit 2.The heat from the storage space 1 is discharged by means of the refrigerant-refrigerant heat exchanger 1.32 directly onto the refrigerant circuit 2 and from there by means of the air conditioning condenser 2.1 to the vehicle environment.If no cooling power is required for the vehicle interior, the evaporator branch 2.20 of the refrigerant circuit 2 can be switched off by means of the switching valve V4.According to FIG. 3, the cryogenic refrigeration circuit 1.0 is thermally coupled by means of the cryogenic refrigeration circuit condenser 1.3 to a coolant circuit 3 designed as a low-temperature (LT) cooling circuit.This coolant circuit 3 comprises a low-temperature cooler 3.1 arranged in a cooling module 6 together with an air conditioning condenser 4 and an associated fan 5 and a plurality of heat-generating components of the vehicle, wherein the coolant, for example. Water is circulated by means of a pump 3.4. As heat-generating components of the vehicle, an electric drive component 3.2 and power electronics 3.3 are shown by way of example.For thermal coupling to this coolant circuit 3, the cryogenic refrigerant circuit condenser 1.3, which is designed as an indirect condenser or an indirect gas cooler, is an indirect coolant-refrigerant condenser 1.33 or an indirect coolant-refrigerant gas cooler 1.33. The coolant of the coolant circuit 3 thus flows through this coolant-refrigerant condenser 1.33 or coolant-refrigerant gas cooler 1.33 on the coolant side. The heat from the storage space 1 is dissipated by means of the indirect coolant-refrigerant condenser 1.33 or the indirect coolant-refrigerant gas cooler 1.33 to the coolant circuit 3 and from there by means of the low-temperature cooler 3.1 to the vehicle environment.The air conditioning condenser 4 of the cooling module 6 is part of a refrigerant circuit, as is illustrated for example in FIGS. 1 and 2, and serves for vehicle air conditioning. The connection of the cryogenic refrigeration circuit 1.0 to the low-temperature cooler 3.1 of the coolant circuit 3 enables operation of the cryogenic refrigeration circuit 1.0 independently of the operation of this refrigerant circuit.Defrosting of the icing components, such as the evaporation cooling surfaces of the evaporator arrangement 1.1 of the systems described in FIGS. 1 to 3, takes place in their standstill phases, in particular in the operating standstill of the vehicle or of the refrigerant circuit 2 according to FIGS. 1 and 2 or of the coolant circuit 3 according to FIG. 3 for the defrosting function, a water outlet device is installed in the evaporator arrangement 1.1.The defrosting of the storage space 1 after this can be realized independently of an operating standstill phase of the vehicle, the refrigerant circuits 2 and the coolant circuit 3, respectively, by forming the evaporation cooling surfaces of the evaporator arrangement 1.1 with an electric heating device. A brief activation of such a heating device leads to defrosting of ice in the evaporator arrangement 1.1, wherein the melt water is likewise discharged via a water outlet device.Furthermore, to avoid unpleasant odors, antibacterial measures have to be provided, in particular in the evaporator arrangement 1.1 of the storage space 1 designed as a deep-cooling box.To implement the storage space 1, for example as a deep-cooling box, evaporation cooling surfaces are implemented as an evaporator arrangement 1.1 with a defrosting and water drain function to delimit the storage space 1. Such evaporative cooling surfaces are known, for example, from WO 01 / 36884 A1 described at the beginning.Furthermore, the evaporator arrangement 1.1 can also be realized as an air evaporator with blower directly in the storage space 1 and additionally with a defrosting and water drain function.Furthermore, the evaporator arrangement 1.1 can also be designed as an indirect heat exchanger, which is supplied with its own pump via a coolant mixture.The coupling of the cryogenic refrigeration circuit 1.0 either to the refrigerant circuit 2 according to FIGS. 1 and 2 or to the coolant circuit 3 according to FIG. 3, which is designed as a low-temperature cooling circuit, can also be combined, for example, via a cryogenic refrigeration circuit condenser 1.3, which is designed as a tri-fluid heat exchanger. The heat emission of the cryogenic refrigeration circuit 1.0 can thus be efficiently realized on the one hand at moderate temperatures via the low-temperature cooler 3.1 of the coolant circuit 3 and on the other hand at higher temperatures via the refrigerant circuit 2.REFERENCE NUMERALS1 Storage space of a vehicle 1.0 Cryogenic refrigeration circuit 1.1 Evaporator arrangement of the cryogenic refrigeration circuit 1.0 1.2 Refrigerant compressor of the cryogenic refrigeration circuit 1.0 1.3 Cryogenic refrigeration circuit condenser 1.31 Coolant-refrigerant heat exchanger as the cryogenic refrigeration circuit condenser 1.3 1.32 Refrigerant-refrigerant heat exchanger as the cryogenic refrigeration circuit condenser 1.3 1.33 Indirect coolant-refrigerant condenser, Indirect coolant-refrigerant gas cooler as a cryogenic refrigeration circuit condenser 1.3 1.4 expansion element of the evaporator arrangement 1.1 1.5 inner heat exchanger of the cryogenic refrigeration circuit 1.0 1.6 refrigerant collector of the cryogenic refrigeration circuit 1.0 2 refrigerant circuit of the vehicle 2.1 air conditioning condenser of the refrigerant circuit 2 2.2 evaporator of the refrigerant circuit 2 2.20 evaporator branch 2.3 chiller of the refrigerant circuit 2 2.30 chiller branch 2.31 coolant circuit of the chiller 2.3 2.32 heat-generating component of the vehicle 2.33 pump of the coolant circuit 2.30 2.4 refrigerant compressor of the refrigerant circuit 2 2.5 inner heat exchanger of the refrigerant circuit 2 2.6 refrigerant collector of the refrigerant circuit 2 3 coolant circuit 3.1 low-temperature cooler of the vehicle Coolant circuit 3 3.2 Electrical drive component 3.3 Power electronics 3.4 Pump of the coolant circuit 3 4 Air conditioning condenser 5 Fan 6 Cooling module V 1 Expansion element V 2 Expansion element V 3 Expansion element V 4 Switching valve

Claims

Storage space (1) of a vehicle for receiving frozen products and for producing ice cubes, having an evaporator arrangement (1.1) for implementing a frozen function, wherein - the evaporator arrangement (1.1) forms a frozen cold circuit (1.0) together with a refrigerant compressor (1.2), a frozen cold circuit condenser (1.3) and an expansion element (1.4), and - the vehicle has a refrigerant circuit (2) with an air conditioning condenser (2.1) which releases heat from the refrigerant circuit (2) to a vehicle environment, characterized in that - the refrigerant circuit (2) of the vehicle has a chiller (2.3) with a coolant circuit (2.31), wherein the coolant circuit (2.31) is thermally coupled to at least one heat-generating component (2.32) of the vehicle, and - the cryogenic refrigeration circuit condenser (1.3) is an indirect condenser or an indirect gas cooler which is a coolant-refrigerant heat exchanger (1.31) and is thermally coupled to the air conditioning condenser (2.1) by a coolant-side arrangement in the coolant circuit (2.31) of the chiller (2.3).Storage space (1) according to Claim 1, characterized in that the cryogenic refrigeration circuit (1.0) has an internal heat exchanger (1.5).Storage space (1) according to Claim 1 or 2, characterized in that the cryogenic refrigeration circuit (1.0) has a refrigerant collector (1.6).Storage space (1) according to one of the preceding claims, characterized in that the evaporator arrangement (1.1) is designed as an evaporation cooling surface of the storage space (1).Storage space (1) according to one of Claims 1 to 3, characterized in that the evaporator arrangement (1.1) is designed as an air evaporator with a blower in the storage space (1).Storage compartment (1) according to one of the preceding claims, characterized in that the storage compartment (1) is designed in such a way that its defrosting can be carried out during an operating standstill of the vehicle.Storage compartment (1) according to one of the preceding claims, characterized in that the evaporator arrangement (1.1) has a heating device, with which defrosting of the storage compartment (1) can be carried out.

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