Cooler package arrangement having a plurality of heat exchangers for a motor vehicle, and motor vehicle having cooler package arrangement

Abstract

The invention relates to a cooler package arrangement (10) for a combustion-engine-powered or at least partially electrically powered motor vehicle, having: a first heat exchanger (12), which is fluidically connected to a coolant circuit (14) of the motor vehicle; a second heat exchanger (16), which is fluidically connected to a refrigerant circuit (18) of the motor vehicle; a third heat exchanger (20), which is fluidically connected to the refrigerant circuit (18) of the motor vehicle; and an air supply device (22), which is designed to guide air, more particularly ambient air, to the first heat exchanger (12), the second heat exchanger (16) and the third heat exchanger (20). According to the invention, the second heat exchanger (16) and the third heat exchanger (20) are arranged in series with respect to one another in relation to a main flow direction (HS) of air present in the air supply device (22). The invention furthermore relates to a motor vehicle having such a cooler package arrangement (10).

Description

[0001] Radiator package arrangement with several heat exchangers for a motor vehicle and motor vehicle with radiator package arrangement

[0002] DESCRIPTION:

[0003] The invention relates to a cooler package arrangement for a motor vehicle driven by an internal combustion engine or at least partially electrically, comprising a first heat exchanger which is fluidically connected to a coolant circuit of the motor vehicle, and a second heat exchanger which is fluidically connected to a refrigerant circuit of the motor vehicle.

[0004] It is known from the prior art to use and arrange several heat exchangers in a motor vehicle.

[0005] As an example, reference is made to DE 10 2015 015 125 A1, in which three heat exchangers, all of which are fluidically connected to the same refrigerant circuit, are arranged one after the other with respect to an air flow direction.

[0006] An arrangement of various heat exchangers of different cooling fluid circuits for a fuel cell vehicle is known from DE 10 2016 119 440 A1.

[0007] From DE 196 44 583 A1 an air conditioning unit with several heat exchangers for a motor vehicle is known.

[0008] In today's motor vehicles, heat exchangers are arranged or housed in a so-called cooler package. To date, such cooler packages, particularly for electrically powered motor vehicles, have been designed with two heat exchangers, in particular a first heat exchanger that is fluidly connected to a coolant circuit (in particular for cooling an electric drive and / or power electronics, but also for battery cooling (passive)) of the motor vehicle, and a second heat exchanger that is fluidly connected to a refrigerant circuit (in particular for air conditioning, but also for battery cooling (active)) of the motor vehicle. The two heat exchangers are generally arranged such that they essentially overlap or cover each other over their entire surface.

[0009] Particularly in electrically powered vehicles, the demand for cooling capacity has increased due to the possibility of rapid charging. Furthermore, refrigeration systems, especially those with supercritical refrigerants, are highly temperature-sensitive. Insufficient cooling of the refrigerant in a heat exchanger acting as a gas cooler / condenser is detrimental to both the cooling capacity and the efficiency of the refrigeration system. It should also be considered that, depending on the design of the refrigeration system or the cooling package with heat exchangers arranged in series on the air side, performance or efficiency deficits in the refrigeration system can occur, which can also affect occupant comfort and range.

[0010] The object underlying the invention is to provide a cooler package arrangement with which the above disadvantages can be reduced or avoided.

[0011] This object is achieved by a radiator assembly and a motor vehicle having the features of the respective independent patent claim. Advantageous embodiments with useful further developments are specified in the dependent patent claims.

[0012] What is therefore proposed is a radiator package arrangement for a motor vehicle driven by an internal combustion engine or at least partially electrically, comprising a first heat exchanger which is fluidically connected to a coolant circuit of the motor vehicle, a second heat exchanger which is fluidically connected to a refrigerant circuit of the motor vehicle, a third heat exchanger which is fluidically connected to the refrigerant circuit of the motor vehicle, and an air supply device which is designed to conduct air, in particular ambient air, to the first heat exchanger, to the second heat exchanger and to the third heat exchanger, wherein the second heat exchanger and the third heat exchanger are arranged in series with one another with respect to a main flow direction of air present in the air supply device.

[0013] By means of the second and third heat exchangers, through which the refrigerant of the refrigerant circuit or a refrigeration system flows, sufficient cooling of the refrigerant in the refrigerant circuit can be achieved, thus avoiding performance or efficiency deficits. If the second and third heat exchangers are serially flowed through on the refrigerant side, the third heat exchanger is first supplied with refrigerant, followed by the second heat exchanger downstream. Alternatively, parallel flow through the second and third heat exchangers is also conceivable.

[0014] In the cooler package arrangement, the first heat exchanger can be arranged in series with at least one of the other two heat exchangers with respect to the main air flow direction. In other words, the first heat exchanger, which is connected to the coolant circuit, can be arranged upstream, between, or downstream of the other two heat exchangers, which are connected to the refrigerant circuit. An arrangement is also conceivable in which the first heat exchanger and, for example, the second heat exchanger are supplied with air in parallel with respect to the main air flow direction, wherein, for example, the third heat exchanger is arranged in series with (in particular downstream of) the first and second heat exchangers.

[0015] In the cooler package arrangement, the first heat exchanger can be a low-temperature cooler, and the second heat exchanger and the third heat exchanger can be designed as a refrigerant condenser or gas cooler. The third heat exchanger can also be referred to as the first gas cooler or condenser, and the second heat exchanger can also be referred to as the second gas cooler or condenser. The third heat exchanger (first gas cooler / condenser) and the second heat exchanger (second gas cooler / condenser) are integrated into the refrigerant circuit in such a way that the third heat exchanger (first gas cooler / condenser) desuperheats or precools the refrigerant, and the second heat exchanger (second gas cooler / condenser) achieves the final stage of refrigerant cooling.

[0016] In the cooler package arrangement, the order of the heat exchangers with respect to the main flow direction of air can be as follows: first heat exchanger before second heat exchanger before third heat exchanger (configuration I); or second heat exchanger before first heat exchanger before third heat exchanger (configuration II); or second heat exchanger before third heat exchanger before first heat exchanger (configuration III).

[0017] The (first) configuration I represents an optimal arrangement for cooling the coolant circuit (water circuit). The (second) configuration II represents an optimal arrangement for cooling the refrigerant circuit. The (third) configuration III represents a compromise for cooling the coolant circuit and the refrigerant circuit.

[0018] In the cooler package arrangement, each heat exchanger can have a base area facing the main air flow direction, with the base areas of all heat exchangers being essentially the same size; or each heat exchanger can have a base area that differs from at least one base area of ​​one of the other heat exchangers. By selecting different sizes or base areas of the heat exchangers, the cooling capacity for the respective coolant or refrigerant circuit can be influenced.

[0019] In the cooler package arrangement, the last heat exchanger can have the largest footprint relative to the main air flow direction, which is in particular larger than at least one footprint of one of the heat exchangers arranged upstream. Such a configuration takes into account the fact that at the rearmost or last heat exchanger relative to the main air flow direction, air is already present at a temperature that is higher than the ambient temperature due to the previous passage through the other heat exchangers.

[0020] In the cooler package arrangement, each heat exchanger can be designed such that it is formed with at least one coolant flow or refrigerant flow, in particular with multiple flows and with a respective outlet flow.

[0021] Preferably, several flows for the coolant or refrigerant, which can also be referred to as internal fluid deflections, are provided in each heat exchanger.

[0022] In the cooler package arrangement, at least the last heat exchanger, relative to the main air flow direction, can have an outlet flow to which air flows freely. This allows the coolant or refrigerant circulating in the last heat exchanger in question to be sufficiently cooled in the area of ​​the outlet flow, despite its location behind the two other heat exchangers. An appropriate design of the heat exchangers can also ensure that, in addition to the last heat exchanger, the penultimate or middle heat exchanger can also have a last flow to which ambient air flows freely.

[0023] In the cooling package arrangement, two heat exchangers that at least partially overlap and are arranged one after the other with respect to the main air flow direction can be arranged in such a way that their respective outlet flow essentially overlaps. This also has a positive influence on the overall cooling capacity of the refrigerant circuit or coolant circuit.

[0024] In the cooler package arrangement, the second heat exchanger and the third heat exchanger, both of which are in fluid communication with the refrigerant circuit, can be arranged such that one of the two heat exchangers forms the frontmost heat exchanger, which is substantially fully exposed to air, and the other of the two heat exchangers is substantially, i.e., completely or partially, overlapped by the frontmost heat exchanger.

[0025] A motor vehicle with an internal combustion engine or at least partially electric drive can be designed with a cooling package arrangement as described above. The motor vehicle can, in particular, be a fully electrically powered motor vehicle, which can also be referred to as a battery electric vehicle (BEV).

[0026] In the motor vehicle, the first heat exchanger (low-temperature cooler) can be connected in particular to the coolant circuit which cools the electric drive and / or storage devices of the motor vehicle.

[0027] In the motor vehicle, the second and third heat exchangers (gas cooler and condenser, respectively) can be connected to the refrigerant circuit intended for the vehicle's air conditioning. Such a refrigerant circuit can be designed with or without a heat pump function.

[0028] It is also conceivable to arrange at least one additional heat exchanger in the motor vehicle, which is connected to the coolant circuit and the refrigerant circuit for the purpose of heat transfer between the refrigerant circuit and the coolant circuit, for example, designed as a so-called chiller. Further advantages and details of the invention will become apparent from the following description of embodiments with reference to the figures. In the figures:

[0029] Fig. 1 in the partial figures A) to E) shows a simplified and schematic embodiment of a cooler package arrangement with various sub-variants;

[0030] Fig. 2 in the partial figures A) to D) shows a simplified and schematic view of another embodiment of a cooler package arrangement with various sub-variants;

[0031] Fig. 3 in the sub-figures A) to E) shows a simplified and schematic view of another embodiment of a cooler package arrangement with various sub-variants.

[0032] Fig. 1A shows a simplified and schematic representation of a cooler assembly 10 for a motor vehicle (not shown) powered by an internal combustion engine or at least partially electrically. The cooler assembly comprises a first heat exchanger 12, which is fluidly connected to a coolant circuit 14 of the motor vehicle. Furthermore, the cooler assembly 10 has a second heat exchanger 16, which is fluidly connected to a refrigerant circuit 18 of the motor vehicle. The cooler assembly 10 comprises a third heat exchanger 20, which is also fluidly connected to the refrigerant circuit 18 of the motor vehicle.

[0033] Such cooler package arrangements can also comprise at least one cooling fan for sucking in or forcing an ambient air flow through the heat exchanger package. Additional heat exchangers can also be components of a cooler package arrangement. These have been omitted for reasons of clarity. The heat exchangers 12, 16, 20 shown in Figures 1 to 3 each have their own hatching, which is retained in all examples in the figures. In other words, the first heat exchanger 12 is diagonally hatched, the second heat exchanger 16 is always vertically hatched, and the third heat exchanger 29 is always cross-hatched. It should be noted that the designations first, second, and third heat exchanger merely serve to ensure consistent designation of the individual heat exchangers; this does not necessarily imply a numbering sequence for the heat exchangers 12, 16, 20, which is particularly evident from the examples in Fig.2 and 3 can be seen.

[0034] In all embodiments of Figs. 1 to 3, the first heat exchanger 12 can be a low-temperature cooler, which is in particular connected to a cooling liquid circuit, preferably a cooling water circuit. The second heat exchanger 16 and the third heat exchanger 20 can be designed as a refrigerant condenser or gas cooler, which are arranged in one or the same refrigerant circuit 18. In this case, with respect to the circulation direction ZR of refrigerant in the refrigerant circuit 18, the third heat exchanger 20 is arranged in front of, i.e. upstream of, the second heat exchanger 16. This is particularly evident from the simplified illustrations in Figs. 1A, 2A and 3A.

[0035] The contour arrows shown in Figs. 1A and 1B indicate an air supply device 22 which is configured to conduct air, in particular ambient air, to the first heat exchanger 12, to the second heat exchanger 16 and to the third heat exchanger 20. The second heat exchanger 16 and the third heat exchanger 20 are arranged in series with one another with respect to a main air flow direction HS present in the air supply device. The same contour arrows are also shown in Figs. 2A and 3A, respectively. Air can be supplied passively via the airstream and / or actively by at least one fan (not shown here).

[0036] Fig. 1B shows an example in which the three heat exchangers 12, 16, 20 are essentially the same size with respect to their inflow area. In other words, the base areas of the heat exchangers 12, 16, 20, shown here in simplified form as rectangles, overlap essentially completely.

[0037] Fig. 1C shows an example in which the first heat exchanger 12 (low-temperature cooler) has a smaller footprint than the other two heat exchangers 16, 20 (gas cooler and refrigerant condenser, respectively). The second and third heat exchangers 16, 20 have essentially the same footprint. The first heat exchanger 12 is arranged offset relative to the second heat exchanger 16. In particular, an intermediate space 24 remains below the first heat exchanger 12, through which a partial volume of air can flow directly to the second heat exchanger 16 without prior heating in the first heat exchanger 12. This can improve the cooling performance overall, but especially for the second and / or third heat exchangers 16 and / or 20 arranged downstream of the first heat exchanger 12 on the air side.

[0038] Fig. 1 D shows an example in which the first heat exchanger 12 and the second heat exchanger 16 have a smaller footprint than the third heat exchanger 20. In this example, the first heat exchanger 12 and the second heat exchanger 16 are arranged one above the other and on the air side in front of the third heat exchanger 20.

[0039] Fig. 1 E shows an example in which the first heat exchanger 12 has a smaller base area than the second heat exchanger 16. The second heat exchanger 16, in turn, has a smaller base area than the third heat exchanger 20. The three heat exchangers 12, 16, 20 are arranged in such a way that there is a partial overlap of the base areas. This leaves a gap 24 below the first heat exchanger 12 and a gap 26 below the second heat exchanger 16 through which a partial volume of air can flow directly to the second heat exchanger 16 or the third heat exchanger 20. This can improve the overall cooling performance. The vertical arrangement of the heat exchangers also depends on how the respective medium flows through them internally. If the flow through them is from top to bottom, the arrangement shown in Fig. 1 E is advantageous.However, if at least one of the heat exchangers 12, 16, 20 is arranged differently, e.g. from bottom to top, the arrangement of the heat exchangers below / to each other or their optimal position in the cooler package arrangement, especially in the case of different dimensions, must be adjusted accordingly for the best possible cooling result.

[0040] Likewise, it is not excluded to make the third heat exchanger 20 smaller than the two upstream heat exchangers 12, 16, so that it is always completely or partially overlapped by them, which, however, is not shown further here.

[0041] With reference to the circulation direction ZR of refrigerant in the refrigerant circuit 18 shown in Fig. 1 A and to the circulation direction ZRK of coolant in the coolant circuit 14, it is pointed out that the three heat exchangers 12, 16, 20 are arranged relative to one another in such a way that a respective outlet flow of coolant or refrigerant can either be flowed against freely by air or is arranged behind the outlet flow of the adjacent heat exchanger with respect to the main flow direction HS of air.

[0042] For all heat exchangers 12, 16, 20, it is pointed out that, in the case of a smaller base area, they can optionally have a greater depth (through which air flows) in order to at least partially compensate for the reduced base area in terms of cooling capacity.

[0043] From the examples in Fig. 1, it is generally evident that the first heat exchanger 12 is arranged in series with at least one of the other two heat exchangers 16, 20, relative to the main air flow direction HS. Furthermore, the examples in Figs. 1B, 1C, and 1E show the following sequence: first heat exchanger 12 upstream of the second heat exchanger 16, upstream of the third heat exchanger 20, which can be referred to as configuration I.

[0044] Fig. 2A shows a simplified and schematic representation of a cooler assembly 10 for a motor vehicle (not shown) powered by an internal combustion engine or at least partially electrically. The cooler assembly comprises a first heat exchanger 12, which is fluidly connected to a coolant circuit 14 of the motor vehicle. Furthermore, the cooler assembly 10 has a second heat exchanger 16, which is fluidly connected to a refrigerant circuit 18 of the motor vehicle. The cooler assembly 10 comprises a third heat exchanger 20, which is also fluidly connected to the refrigerant circuit 18 of the motor vehicle.

[0045] From the examples in Fig. 2, it is generally evident that the first heat exchanger 12 is arranged in series with at least one of the other two heat exchangers 16, 20, relative to the main air flow direction HS. Furthermore, the examples in Figs. 2B, 2C, and 2D show the following sequence: second heat exchanger 16 before first heat exchanger 12 before third heat exchanger 20, which can also be referred to as configuration II.

[0046] Fig. 2B shows an example in which the three heat exchangers 12, 16, 20 are essentially the same size in terms of their inflow area. In other words, the base areas of the heat exchangers 12, 16, 20, shown here in simplified form as rectangles, overlap essentially completely.

[0047] Fig. 2C shows an example in which the second heat exchanger 16 (second gas cooler or refrigerant condenser) has a smaller footprint than the other two heat exchangers 12, 20 (low-temperature cooler and gas cooler or refrigerant condenser). The first and third heat exchangers 12, 20 have essentially the same footprint. The second heat exchanger 16 is arranged offset from the first heat exchanger 12. In particular, a gap 24 remains below the second heat exchanger 16, through which a partial volume of air can flow directly to the first heat exchanger 12 without prior heating in the second heat exchanger 16. This can improve the overall cooling performance.

[0048] Fig. 2D shows an example in which the second heat exchanger 16 has a smaller footprint than the first heat exchanger 12. The first heat exchanger 12, in turn, has a smaller footprint than the third heat exchanger 20. The three heat exchangers 12, 16, and 20 are arranged relative to one another such that their footprints partially overlap. A gap 24 remains below the second heat exchanger 16 and a gap 26 remains below the first heat exchanger 12, through which a partial volume of air can flow directly to the first heat exchanger 12 and the third heat exchanger 20, respectively. This can improve the overall cooling performance.

[0049] Depending on the position of the outlet flow of a medium at a heat exchanger, an intermediate space 24 can, for example, also remain free above a further heat exchanger connected downstream of the second heat exchanger 16, such as the first heat exchanger 12, and be directly supplied with a partial volume of unconditioned (ambient) air.

[0050] Fig. 3 shows a simplified and schematic representation of a cooler assembly 10 for a motor vehicle (not shown) that is powered by an internal combustion engine or at least partially by electricity. The cooler assembly comprises a first heat exchanger 12, which is fluidically connected to a coolant circuit 14 of the motor vehicle. Furthermore, the cooler assembly 10 has a second heat exchanger 16, which is fluidically connected to a refrigerant circuit 18 of the motor vehicle. The cooler assembly 10 comprises a third heat exchanger 20, which is also fluidically connected to the refrigerant circuit 18 of the motor vehicle. From the examples in Fig. 3, it is generally apparent that the first heat exchanger 12 is arranged in series with at least one of the two other heat exchangers 16, 20 with respect to the main flow direction HS of air. Furthermore, the examples in Fig.3B, 3C, 3D and 3E the following sequence: second heat exchanger 16 before third heat exchanger 20 before first heat exchanger 12, which can also be referred to as configuration III.

[0051] Fig. 3B shows an example in which the three heat exchangers 12, 16, 20 are essentially the same size. In other words, the base areas of the heat exchangers 12, 16, 20, shown here in simplified form as rectangles, overlap essentially completely.

[0052] Fig. 3C shows an example in which the first heat exchanger 12 (low-temperature cooler) has a maximum footprint. The second and third heat exchangers 16, 20 have essentially equal footprints. In this configuration, the second heat exchanger 16 is exposed to (ambient) air over its entire surface, or 100% of it, respectively. A respective intermediate space 24, 26 is formed beneath the second and third heat exchangers 16, 20, which in turn can be dimensioned differently or equally in relation to the area of ​​the air flow, so that air can flow directly to the first heat exchanger 12.

[0053] Fig. 3D shows an example in which the first heat exchanger 12 (low-temperature cooler) has a maximum base area. The second and third heat exchangers 16, 20 have different base areas, wherein the base area of ​​the second heat exchanger 16 can be larger than or equal to the base area of ​​the third heat exchanger 20. Above the second heat exchanger 16, a gap 24 is formed so that air can flow directly to the third heat exchanger 20. Below the third heat exchanger, a gap 26 is formed so that air can flow directly from the second heat exchanger 16 to the first heat exchanger 12. In this configuration, the second heat exchanger 16 is fully or 100% exposed to (ambient) air. Especially in this application example, an outlet flow of the medium in the third heat exchanger 20 can optionally be located at the top.

[0054] Fig. 3E shows an example in which the first heat exchanger 12 (low-temperature cooler) has a maximum footprint. The second and third heat exchangers 16, 20 have different footprints, with the footprint of the second heat exchanger 16 being larger than the footprint of the third heat exchanger 20. In this configuration, the second heat exchanger 16 is fully exposed to (ambient) air. A respective intermediate space 24, 26 is formed beneath the second and third heat exchangers 16, 20 so that air can flow directly to the first heat exchanger 12.

[0055] Considering all the examples of different configurations of the cooler package arrangement 10 described above with reference to Figs. 1 to 3, the following features may also apply to individual, several or all heat exchangers 12, 16, 20 of the cooler package arrangement in question.

[0056] All heat exchangers can have the same inflow area. Furthermore, at least one of the heat exchangers can have a different inflow area than the others. Ultimately, all heat exchangers can have different inflow areas.

[0057] Relative to the main air flow direction HS, the last heat exchanger has the largest base area. In particular, the base area of ​​the last heat exchanger is larger than at least one base area of ​​one of the heat exchangers arranged upstream.

[0058] In the described cooler core arrangements 10, each heat exchanger 12, 16, 20 can be designed such that it is formed with at least one coolant flow or refrigerant flow. In particular, the heat exchangers can also be designed with multiple flows and each with its own outlet flow. In the various cooler core arrangements 10, the last heat exchanger can have an outlet flow that is free of air flow, relative to the main air flow direction HS. This applies in particular to the examples in Figs. 1E, 2D, 3C, and 3E.

[0059] Furthermore, in the various cooling package arrangements 10, two heat exchangers that at least partially overlap and are arranged one after the other with respect to the main air flow direction HS can be arranged such that their respective outlet flow essentially overlaps. This applies to all examples shown due to the circulation directions ZR (refrigerant circuit 18) and ZRK (coolant circuit 14) shown in simplified form in Figs. 1A, 2A, and 3A.

[0060] In the cooler package arrangements 10 of Figs. 2 and 3, the second heat exchanger 16 and the third heat exchanger 20, which are both in fluid communication with the refrigerant circuit 18, are arranged such that one of the two heat exchangers 16 forms the frontmost heat exchanger, which is essentially fully exposed and first to (ambient) air, and the other heat exchanger 20 is essentially overlapped by the frontmost heat exchanger 16.

[0061] All heat exchangers 12, 16, 20 can be dimensioned the same or differently from each other with respect to their respective base areas. In addition to or as an alternative to changing the base areas, the heat exchangers 12, 16, 20 can also have the same or different depths. In particular, a heat exchanger with a smaller base area can have a greater depth, so that a reduced cooling capacity of the heat exchanger in question due to a reduction in base area can be at least partially compensated.

[0062] Likewise, for each of the described embodiments of the cooler core assembly 10, at least one fan device can be provided, which acts in a pushing or sucking manner with respect to all heat exchangers 12, 16, 20 to allow air to flow through the cooler core assembly. Additionally or alternatively, it is also conceivable to arrange a (possibly additional) fan device between two adjacent heat exchangers.

[0063] The above exemplary embodiments relate in particular to heat exchangers each with a substantially horizontal fluid flow, in particular in the second and third heat exchangers 16, 20 (gas cooler and refrigerant condenser, respectively). However, the concepts presented here can also be used, with appropriate adaptation, for heat exchangers with a substantially vertical fluid flow. In this case, the intermediate spaces 24, 26 shown as examples in Figs. 1 to 3 can then be arranged not above or below a respective heat exchanger, but ideally to the left or right of a respective heat exchanger. Furthermore, it is also possible to combine heat exchangers with different fluid flow systems and to position them accordingly in an optimized manner relative to one another.

[0064] It should also be noted that, in addition to the above-mentioned embodiment of horizontal fluid flow in all heat exchangers and the above-described case of vertical fluid flow in all heat exchangers, combinations are also possible. In particular, at least one heat exchanger can differ in the fluid flow (vertical or horizontal) from the fluid flow in the remaining heat exchangers. This enables a mixed installation of horizontal and vertical fluid flow. In particular, in condensers and / or gas coolers, preferably in air-source heat pump applications, vertical fluid flow can be used to support fluid drainage at or in the respective heat exchanger. Furthermore, components or heat exchangers can also be used which can themselves have a so-called mixed fluid flow with horizontal and vertical components of the fluid flow.

Claims

PATENT CLAIMS:

1. Radiator assembly (10) for a motor vehicle powered by an internal combustion engine or at least partially by electricity, comprising a first heat exchanger (12) connected to a coolant circuit (14) of the motor vehicle is fluidly connected, a second heat exchanger (16) which is fluidly connected to a refrigerant circuit (18) of the motor vehicle, a third heat exchanger (20) which is fluidly connected to the refrigerant circuit (18) of the motor vehicle is fluidly connected to an air supply device (22) which is designed to direct air, in particular ambient air, to the first heat exchanger (12), to the second heat exchanger (16) and to the third heat exchanger (20), wherein the second heat exchanger (16) and the third heat exchanger (20) are arranged in series with respect to a main flow direction (HS) of air present in the air supply device (22).

2. Cooler package arrangement (10) according to claim 1, wherein the first heat exchanger (12) is arranged in series with respect to the main flow direction (HS) of air at least to one of the other two heat exchangers (16, 20).

3. Cooler package arrangement (10) according to claim 1 or 2, wherein the first heat exchanger (12) is a low-temperature cooler and wherein the second heat exchanger (16) and the third heat exchanger (20) are designed as a refrigerant condenser and gas cooler respectively.

4. Cooler assembly (10) according to one of the preceding claims, wherein the order of the heat exchangers (12, 16, 20) with respect to the main flow direction (HS) of air is as follows: first heat exchanger (12) before second heat exchanger (16) before third heat exchanger (20); or second heat exchanger (16) upstream of first heat exchanger (12) upstream of third heat exchanger (20); or second heat exchanger (16) upstream of third heat exchanger (20) upstream of first heat exchanger (12). Cooler assembly (10) according to one of the preceding claims, wherein each heat exchanger (12, 16, 20) has a base area facing the main airflow direction (HS), wherein the base areas of all heat exchangers (12, 16, 20) are substantially the same size; or each heat exchanger (12, 16, 20) has a base area that differs from at least one base area of ​​one of the other heat exchangers (12, 16, 20). Cooler package arrangement (10) according to claim 5, wherein, with respect to the main flow direction (HS) of air, the last heat exchanger (12, 20) has the largest base area, which is in particular larger than at least one base area of ​​one of the heat exchangers (12, 16, 20) arranged upstream.Cooling package arrangement (10) according to any one of the preceding claims, wherein each heat exchanger (12, 16, 20) is configured to have at least one coolant flow or refrigerant flow, in particular multiple flows and a respective outlet flow. Cooling package arrangement (10) according to claim 7, wherein, with respect to the main airflow direction (HS), at least the last heat exchanger (12, 20) has an outlet flow that is free of airflow. Cooling package arrangement (10) according to claim 6 or 7, wherein two heat exchangers are arranged at least partially overlapping and one after the other with respect to the main airflow direction (HS). (12, 16, 20) are arranged such that their respective outlet flows substantially overlap. Radiator assembly (10) according to one of claims 7 to 9, wherein the second heat exchanger (16) and the third heat exchanger (20), both of which are in fluid communication with the refrigerant circuit (18), are arranged such that one of the two heat exchangers (16) forms the foremost heat exchanger, which is substantially fully exposed to air, and the other (18) of the two heat exchangers is substantially overlapped by the foremost heat exchanger (16). Motor vehicle with internal combustion engine or at least partially electric drive and with a radiator assembly (10) according to one of the preceding claims.

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