Plate heat exchanger having a large number of heat exchange compartments
The compact heat exchanger design addresses space and connection issues by combining multiple functions through specific compartment arrangements and fluid pathways, improving efficiency and integration in automotive systems.
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Patents
- Current Assignee / Owner
- VALEO ELECTRIFICATION
- Filing Date
- 2022-06-14
- Publication Date
- 2026-05-20
AI Technical Summary
Existing heat exchangers in automotive systems face challenges of space occupation and connection complexity due to the multiplication of heat exchangers, which affects efficiency and integration within vehicles.
A compact heat exchanger design that combines multiple functions by arranging first and third heat exchange compartments side by side and stacked on the same face of the second compartment, with specific fluid circulation paths and connections to facilitate efficient heat exchange and reduce the number of required connections.
The design achieves a compact and efficient heat exchanger that optimizes space usage and simplifies connections, enhancing integration and assembly within automotive thermal management systems.
Smart Images
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Abstract
Description
[0001] The present invention relates to a plate heat exchanger comprising various fluid exchange compartments. The present invention also relates to an installation comprising a refrigerant circuit and at least one auxiliary circulation circuit for a heat transfer fluid with such a plate heat exchanger. Specifically, the present invention relates to a plate heat exchanger conforming to the preamble of claim 1, as illustrated in US patent 3,513,907 A.
[0002] In the automotive sector, it is common to need to modify the temperature of a component, such as an electric motor, a battery, a heat and / or cooling storage device, or similar. For this purpose, the vehicle is equipped with a system that includes a refrigerant circuit through which a refrigerant circulates and at least one auxiliary circulation circuit through which a heat transfer fluid circulates. The refrigerant circuit generally includes a compressor to compress the refrigerant, a first heat exchanger, usually called a condenser, to cool the refrigerant at constant pressure, an expansion device to allow the refrigerant to expand, and a second heat exchanger, called a cooler, for example, a two-fluid heat exchanger, usually a plate heat exchanger, arranged together in the refrigerant circuit and in the auxiliary circulation circuit.This two-fluid heat exchanger facilitates the exchange of heat energy between the refrigerant and the heat transfer fluid circulating in the auxiliary circulation circuit. The auxiliary circulation circuit typically includes a pump and a heat exchanger capable of modifying the temperature of a component.
[0003] A two-fluid heat exchanger is a heat exchanger typically composed of stacked plates joined together to form tubes that define circulation chambers for the refrigerant or heat transfer fluid. Each plate has at least four ports to allow for a first inlet and outlet of the refrigerant, and a second inlet and outlet of the heat transfer fluid within the circulation chambers located on either side of the same plate.
[0004] It is also known to improve the coefficient of performance of the refrigerant circuit, by equipping the latter with an internal heat exchanger configured to allow the exchange of heat energy between the high-pressure refrigerant at the outlet of the condenser and the low-pressure refrigerant at the outlet of the cooler.
[0005] The multiplication of these heat exchangers certainly allows for better efficiency, however it also leads to problems of space and connection of the various heat exchangers within the motor vehicle.
[0006] One of the aims of the present invention is to remedy at least partially the disadvantages of the prior art and to propose a compact heat exchanger that can combine several functions in order to occupy as little space as possible and facilitate the connection of heat exchangers.
[0007] The present invention therefore relates to a heat exchanger according to claim 1.
[0008] According to one aspect of the invention, the first and third heat exchange compartments are arranged side by side and stacked on the same face of the second heat exchange compartment, the outlet of the third heat transfer fluid of the third heat exchange compartment is opposite and connected to the inlet of the third heat transfer fluid of the second heat exchange compartment.
[0009] According to another aspect of the invention, the third compartment is arranged side by side with the first and second compartments superimposed.
[0010] According to another aspect of the invention, the second and third compartments are made from two separate stacks of plates.
[0011] According to another aspect of the invention, the side-by-side parts of the second and third compartments are made from a single stack of plates comprising the third, fourth, fifth and sixth traffic lanes.
[0012] According to another aspect of the invention, the second heat exchange compartment includes a second inlet for the first refrigerant fluid.
[0013] According to another aspect of the invention, the second heat exchange compartment includes a second inlet for the third refrigerant fluid.
[0014] According to another aspect of the invention, the heat exchanger comprises a fourth heat exchange compartment including: a seventh circulation path in which the fourth heat transfer fluid is intended to circulate, and an eighth circulation path in which the third heat transfer fluid is intended to circulate.
[0015] According to another aspect of the invention, the outlet of the third heat transfer fluid of the fourth heat exchange compartment and the outlet of the third heat transfer fluid of the third heat exchange compartment are connected to the inlet of the third heat transfer fluid of the second heat exchange compartment.
[0016] According to another aspect of the invention, the first heat exchange compartment is a water condenser: the first circulation path being intended to be traversed by the first heat transfer fluid, said first heat transfer fluid being a high-pressure refrigerant circulating in a thermal management loop, the second circulation path being intended to be traversed by the second heat transfer fluid, said second heat transfer fluid being a heat transfer fluid circulating in an auxiliary thermal management loop, the third heat exchange compartment being a chiller: the fifth circulation path being intended to be traversed by the fourth heat transfer fluid, said fourth heat transfer fluid being a heat transfer fluid circulating in an auxiliary thermal management loop, the sixth circulation path being intended to be traversed by the third heat transfer fluid, said third heat transfer fluid being the low-pressure refrigerant circulating in the thermal management loop, the second heat exchange compartment being an internal heat exchanger: the third circulation path being intended to be traversed by the high-pressure refrigerant having passed through the first heat exchange compartment, corresponding to the first heat transfer fluid, the fourth circulation path being intended to be traversed by the low-pressure refrigerant having passed through the third heat exchange compartment,corresponding to the third heat transfer fluid.
[0017] Other features and advantages of the invention will become clearer upon reading the following description, given by way of illustrative and non-limiting example, and the accompanying drawings, among which: [ Fig 1 ] there figure 1 shows a schematic perspective representation of a heat exchanger according to a first embodiment, [ Fig 2 ] there figure 2 shows a schematic exploded perspective representation of the heat exchanger of the figure 1 , [ Fig 3 ] there figure 3 shows a schematic representation according to a first cross-section of the heat exchanger of the figure 1 according to a first variant not conforming to the invention, [ Fig 4 ] there figure 4 shows a schematic representation according to a second cross-section of the heat exchanger of the figure 1 according to the first variant, [ Fig 5 ] there figure 5shows a schematic representation according to a first cross-section of the heat exchanger of the figure 1 according to a second variant conforming to the invention, [ Fig 6 ] there figure 6 shows a schematic representation according to a second cross-section of the heat exchanger of the figure 1 according to the second variant, [ Fig 7 ] there figure 7 shows a schematic representation of a thermal management device, [ Fig 8 ] there figure 8 shows a schematic representation according to a first cross-section of the heat exchanger of the figure 1 according to a third variant not conforming to the invention, [ Fig 9 ] there figure 9 shows a schematic representation according to a second cross-section of the heat exchanger of the figure 1 according to the third variant, [ Fig 10 ] there Figure 10 shows a schematic perspective representation of a heat exchanger according to a second embodiment, [ Fig 11 ] there figure 11shows a schematic representation according to a first cross-section of the heat exchanger of the Figure 10 , [ Fig 12 ] there figure 12 shows a schematic representation according to a second cross-section of the heat exchanger of the Figure 10 , [ Fig 13 ] there figure 13 shows a schematic perspective representation of a heat exchanger according to a third embodiment, [ Fig 14 ] there figure 14 shows a schematic representation according to a first cross-section of the heat exchanger of the figure 13 , [ Fig 15 ] there figure 15 shows a schematic representation according to a second cross-section of the heat exchanger of the figure 13 , [ Fig 16 ] there figure 16 shows a schematic perspective representation of a heat exchanger according to a fourth embodiment.
[0018] The identical elements in the different figures bear the same references.
[0019] The following are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the features apply only to a single embodiment. Simple features from different embodiments can also be combined or interchanged to provide other embodiments.
[0020] In this description, certain elements or parameters can be indexed, such as first element or second element, first parameter and second parameter, first criterion and second criterion, etc. In this case, it is simply indexing to differentiate and name similar but not identical elements, parameters, or criteria. This indexing does not imply any priority of one element, parameter, or criterion over another, and such designations can easily be interchanged without departing from the scope of this description. Nor does this indexing imply any order in time, for example, for evaluating certain criteria.
[0021] THE figures 1 to 4show a heat exchanger 1 comprising three heat exchange compartments 10, 20 and 30. The heat exchanger 1 is notably formed of a stack of plates 100, generally stamped metal plates, delimiting different circulation paths 100a, 100b, 100c, 100d, 100e, 100f for heat transfer fluids, for example by means of ribs 53. The plates 100 may notably include open orifices 51 allowing the inlet and outlet of the heat transfer fluid circulating in the circulation path 100a, 100b, 100c, 100d, 100e, 100f and closed orifices 52 allowing the simple passage of a heat transfer fluid through the plate without the latter circulating in the circulation path 100a, 100b, 100c, 100d, 100e, 100f. The 100 plates can notably be made of a metallic material such as aluminium or an aluminium alloy and brazed together.
[0022] The first heat exchange compartment 10 comprises a first circulation path 100a through which a first heat transfer fluid A is intended to circulate between an inlet 10A and an outlet 10A' of said first heat transfer fluid 1. The second circulation path 100b is intended to ensure the circulation of a second heat transfer fluid B between an inlet 10B and an outlet 10B' of said second heat transfer fluid B. The first 100a and second 100b circulation paths are stacked alternately. Preferably, the direction of flow in the first 100a and second 100b circulation paths is counter-current in order to improve heat exchange between the two fluids.
[0023] The second heat exchange compartment 20 includes a third circulation path 100c in which the first heat transfer fluid A is intended to circulate between an inlet 20A and an outlet 20A' of said first heat transfer fluid A. The first 10 and second 20 compartments are stacked such that the outlet 10A' of the first heat transfer fluid A of the first compartment 10 is opposite and connected to the inlet 20A of the first heat transfer fluid A of the second compartment 20. The second compartment 20 also includes a fourth circulation path 100d in which a third heat transfer fluid C is intended to circulate between an inlet 20C and an outlet 20C' of said third heat transfer fluid C. The third 100c and fourth 100d circulation paths are stacked alternately.Preferably, the directions of flow in the third 100c and the fourth 100d flow path are counter-current in order to improve heat exchange between the two fluids.
[0024] The third heat exchange compartment 30 includes a fifth circulation path 100e through which a fourth heat transfer fluid D is intended to circulate between an inlet 30D and an outlet 30D' of the fourth heat transfer fluid D. The third compartment 30 also includes a sixth circulation path 100f through which the third heat transfer fluid C is intended to circulate between an inlet 30C and an outlet 30C' of said third heat transfer fluid C. The outlet 30C' of the third heat transfer fluid C of the third compartment 30 is specifically connected to the inlet 20C of the third heat transfer fluid C of the second compartment 20. The fifth 100e and sixth 100f circulation paths are stacked alternately. Preferably, the directions of flow in the fifth 100e and sixth 100f circulation paths are counter-current to improve heat exchange between the two fluids.
[0025] The third compartment 30 is arranged side by side with the first compartment 10. This allows, in combination with the fact that the first 10 and second 20 compartments are stacked, to have a compact heat exchanger 1 combining three heat exchange functions between the first A and second B heat transfer fluid in the first compartment 10, between the first A and third C heat transfer fluid in the second compartment 20 and between the third C and fourth D heat transfer fluid in the third compartment 30.
[0026] According to a first embodiment illustrated in figures 1 to 4The first 10 and third 30 heat exchange compartments are arranged side by side and stacked on the same face of the second 20 heat exchange compartment. The outlet 30C' of the third heat transfer fluid C of the third 30 heat exchange compartment is then opposite and connected to the inlet 20C of the third heat transfer fluid C of the second 20 heat exchange compartment.
[0027] The first compartment 10 thus includes a first end plate or cheek 101 located at one end of the stack of plates 100 and having the inlet 10A of the first heat transfer fluid A as well as the inlet 10B and the outlet 10B' of the second heat transfer fluid B. At a second end of the stack of plates 100, the first compartment 10 includes a second end plate 102 interfacing with the second compartment 20. This second end plate 102 allows the first heat transfer fluid A to pass into the second compartment 20 but blocks the second heat transfer fluid B so that it circulates only within the first compartment 10.
[0028] The third compartment 30 includes a first end plate or cheek 101' located at one end of the stack of plates 100 and comprising the inlet 30C of the third heat transfer fluid C as well as the inlet 30D and outlet 30D' of the fourth heat transfer fluid D. At a second end of the stack of plates 100, the third compartment 30 also includes a second end plate 102' interfacing with the second compartment 20. This second end plate 102e allows the third heat transfer fluid A to pass into the second compartment 20 but blocks the fourth heat transfer fluid D so that it circulates only within the third compartment 30.
[0029] The second compartment 20 has an end plate 103 located at the end of its stack of plates 100 opposite the end facing the first 10 and third 30 compartments. This end plate 103 includes, in particular, the outlet 20A' of the first heat transfer fluid A and the outlet 20C' of the third heat transfer fluid C.
[0030] In the example illustrated in figures 1 to 4 The second compartment 20 covers an area at least equal to the sum of the areas of the first 10 and second 20 compartments, so that the said first 10 and second 20 compartments can rest entirely on the second compartment 20. The passageways 100a, 100b, 100e and 100f of the first 10 and second 20 each have two passes per plate 100. The passageways 100c, 100d of the second compartment 20 have four passes per plate 100.
[0031] Following the example illustrated in figures 1 to 4 The first 10 and third 30 compartments have the same number of plates (100), so their height is identical. However, it is entirely possible to imagine an alternative in which the first 10 and third 30 compartments have a different number of plates (100) to meet the constraints and heat exchange power requirements of said compartments.
[0032] According to a first variant of the first embodiment visible on the figures 3 and 4 In cross-section, the first 10 and third 30 compartments are made from two separate stacks of plates.
[0033] According to a second variant of the first embodiment visible on the figures 5 and 6In cross-section, the side-by-side parts of the first 10 and third 30 compartments are made from a single stack of 100 plates comprising the first 100a, second 100b, fifth 100e and sixth 100f traffic lanes.
[0034] The heat exchanger 1 can, in particular, be connected within a thermal management device G illustrated in the figure 7This thermal management device G includes a thermal management loop X through which a refrigerant is intended to circulate. This thermal management loop X includes, in the direction of refrigerant flow, a compressor 3, a condenser 10, an expansion device 4, and a cooler 30. The thermal management loop X also includes an internal heat exchanger 20 connected on one side to the high-pressure refrigerant (shown in thick lines) from the condenser 10 and on the other side to the low-pressure refrigerant (shown in thin lines) from the cooler 30. The thermal management loop X may also include a phase separation device 5, for example, an accumulator located upstream of the compressor 3. This phase separation device 5 may be located between the internal heat exchanger 20 and the compressor 3, as illustrated in the figure. figure 7. In an alternative not shown, the phase separation device 5 can be arranged between the cooler 30 and the internal heat exchanger 20. The refrigerant can, for example, be R744 or R1234yf.
[0035] The condenser 10 is also connected to a first auxiliary thermal management loop Y, in which a heat transfer fluid, for example glycol water, is intended to circulate. This first auxiliary thermal management loop Y may include, in addition to the condenser 10, a pump 6 and a radiator 7, for example, intended to allow an external airflow to pass through it in order to dissipate heat.
[0036] The cooler 30 is connected to a second auxiliary thermal management loop Z, in which a heat transfer fluid, for example glycol water, is intended to circulate. This second auxiliary thermal management loop Z may include, in addition to the cooler 30, a pump 8 and a heat exchanger 9, for example intended to cool a component of the motor vehicle, such as the batteries.
[0037] The first heat exchange compartment 10 can correspond to the condenser 10. The first circulation path 100a is then intended to carry the first heat transfer fluid A, which is the high-pressure refrigerant. The second circulation path 100b is intended to carry the second heat transfer fluid B, which is the heat transfer fluid circulating in the first auxiliary thermal management loop Y.
[0038] The third heat exchange compartment 30 can correspond to the cooler 30. The fifth circulation path 100e is then intended to be traversed by the fourth heat transfer fluid D, being the heat transfer fluid circulating in the second auxiliary thermal management loop Z. The sixth circulation path 100f is intended to be traversed by the third heat transfer fluid C, being the low-pressure refrigerant.
[0039] The second heat exchange compartment 20 can finally correspond to the internal heat exchanger 20. The third circulation path 100c is then intended to be traversed by the high-pressure refrigerant fluid A having passed through the first compartment 10. The fourth circulation path 100d is intended to be traversed by the low-pressure refrigerant fluid C having passed through the third heat exchange compartment 30.
[0040] The X thermal management system illustrated in the figure 7 This is just one example; it is entirely possible to imagine different architectures, for instance, in which the first Y and second Z auxiliary thermal management loops are grouped together within a single auxiliary thermal management loop. The second B and fourth C heat transfer fluids would then be the same heat transfer fluid circulating in this auxiliary thermal management loop.
[0041] According to an alternative to the first embodiment illustrated in figures 8 And 9The second compartment 20 may include a second inlet 20A2 for the first refrigerant A. This second inlet 20A2 may, in particular, join the first heat transfer fluid A from inlet 20A in order to circulate in the third circulation paths 100c. This second inlet 20A2 may, for example, allow a second condenser (not shown) to be connected to the second compartment 20, which acts as an internal heat exchanger, for example, connected in parallel with the first compartment 10 within the thermal management loop X.
[0042] Still according to the alternative to the first embodiment illustrated in figures 8 And 9The second compartment 20 may include a second inlet 20C2 for the third refrigerant C. This second inlet 20C2 may, in particular, join the third heat transfer fluid C from inlet 20C in order to circulate in the fourth circulation paths 100b. This second inlet 20C2 may, for example, allow a second cooler (not shown) to be connected to the second compartment 20, which acts as an internal heat exchanger. This cooler may be connected in parallel with the third compartment 30 within the thermal management loop X.
[0043] According to a second embodiment illustrated in Figures 10 to 12 The third compartment 30 is arranged side by side with the superposition of the first 10 and second 20 compartments. According to this second embodiment, only the first compartment 10 is arranged on top of the second compartment 20.
[0044] In this second embodiment, the second end plate 102' of the third compartment 30 is not adjacent to the second end plate 102 of the first compartment 10, as in the first embodiment, but rather adjacent to the second end plate 103 of the second compartment 20. The outlet 30C' of the third heat transfer fluid C of the third compartment 30 is thus connected to the inlet 20C of the third heat transfer fluid C of the second compartment 20. In the example illustrated in Figures 11 and 12This connection is made by a connecting plate 105 delimiting these conduits linking the outlet 30C' and the inlet 20C and positioned opposite the end plate 103 of the second compartment 20 and the second end plate 102' of the third compartment 30. Still according to the illustrated example, the heat exchanger 1 can also include a channel 20A'2 passing through the first 10 and second 20 compartments so as to extend the outlet 20A' of the first heat transfer fluid A of the second compartment 20 so that the first heat transfer fluid A exits through the first end plate 101 of the first compartment 10. The outlet 20A' of the second compartment 20 is here connected to the inlet of this channel 20A'2 by a conduit formed in the connecting plate 105.
[0045] According to this second embodiment, and similar to the first embodiment, the first 10 and third 30 compartments can be made from two separate stacks of plates 100. According to a variant, the side-by-side parts of the first 10 and third 30 compartments can be made from a single stack of plates 100 comprising the first 100a, second 100b, fifth 100e and sixth 100f traffic lanes.
[0046] Similarly, the second 20 and third 30 compartments can be made from two separate stacks of plates. According to another variant, the side-by-side parts of the second 20 and third 30 compartments can be made from a single stack of 100 plates comprising the third 100c, fourth 100d, fifth 100e and sixth 100f traffic lanes.
[0047] According to the example illustrated in Figures 10 to 12The third compartment (30) has the same number of plates (100) as the first and second compartments (10) combined, so the height of the third compartment is identical to the height of the stacked first and second compartments (20). However, it is entirely possible to imagine an alternative in which the third compartment (30) has a different number of plates (100) than the stacked first and second compartments (10) in order to meet the constraints and heat exchange power requirements of said compartments.
[0048] According to a third embodiment illustrated in figures 13 to 16 The heat exchanger 1 may also include a fourth heat exchange compartment 40. This fourth compartment 40 includes, in particular: a seventh circulation path 100i in which the fourth heat transfer fluid D is intended to circulate between an inlet 40D and an outlet 40D' of the fourth heat transfer fluid, and an eighth circulation path 100j in which the third heat transfer fluid C is intended to circulate between an inlet 40C and an outlet 40C' of the third heat transfer fluid C.
[0049] According to a first alternative of the third embodiment illustrated in figures 13 to 16The outlet 40C' of the third heat transfer fluid C in the fourth compartment 30 can be connected to the inlet 20C of the third heat transfer fluid C in the second compartment 20. The seventh 100i and eighth 100j circulation paths are stacked alternately. Preferably, the flow direction in the seventh 100i and eighth 100j circulation paths is counter-current to improve heat exchange between the two fluids. More specifically, the outlet 40C' of the fourth compartment 40 and the outlet 30C' of the third compartment 30 are both connected to the inlet 20C of the third heat transfer fluid C in the second compartment 20.
[0050] According to a second alternative of the third embodiment not shown, the outlet 40C' of the third heat transfer fluid C of the fourth compartment 30 can be free or connected directly to the outlet 20C' of the third heat transfer fluid C of the second compartment 20.
[0051] THE figures 13 to 15 show a first variant of this third embodiment in which the third compartment 30 is arranged side by side with the first compartment 10 on a first side and the fourth compartment 40 is arranged side by side with the third compartment 30 on a second side of the third compartment 30 opposite its first side.
[0052] The example of figures 13 to 15 This incorporates the characteristic of the second embodiment in which the third compartment 30 is placed side by side with the superposition of the first 10 and second 20 compartments. Thus, in this example, only the first compartment 10 is placed on top of the second compartment 20. However, it is entirely possible to imagine an embodiment in which the first 10, the third 30, and the fourth 40 compartments are all placed on top of the second compartment 20.
[0053] Returning to the example of figures 13 to 15, the 40C' outlet of the fourth compartment 40 and the 30C' outlet of the third compartment 30 are both connected to the 20C inlet of the third heat transfer fluid C of the second compartment 20 via the connecting plate 105.
[0054] There figure 16 shows a second variant of the third embodiment in which the third compartment 30 and the fourth compartment 40 are both arranged side by side with the first compartment 10 on one side. The fourth compartment 40 is also arranged side by side with the third compartment 30 on a second side of the third compartment 30, which is contiguous with its first side. As with the first variant, the example illustrated in the figure 16This incorporates the characteristic of the second embodiment in which the third compartment 30 is placed side by side with the first 10 and second 20 compartments superimposed. Thus, in this example, only the first compartment 10 is placed on top of the second compartment 20. However, it is entirely possible to imagine an embodiment in which the first 10, the third 30, and the fourth 40 compartments are all placed on top of the second compartment 20.
[0055] Thus, it is clear that the heat exchanger 1, through its division into different compartments 10, 20, 30, as well as the various connections of the heat transfer fluid circulation paths, allows for a compact heat exchanger capable of combining various functions such as a condenser, a cooler, and an internal heat exchanger. This results in greater compactness for better integration within a motor vehicle. Furthermore, the structure of the heat exchanger 1 also facilitates easier assembly, particularly regarding connections to a thermal management system with various circulation circuits, since it already incorporates certain connections, thus reducing the number of connections required.
Claims
1. Plate heat exchanger (1) comprising: - a first heat exchange compartment (10) comprising a first circulation path (100a) in which a first heat transfer fluid (A) is intended to circulate, and a second circulation path (100b) in which a second heat transfer fluid (B) is intended to circulate, said first compartment (10) comprising an outlet (10A') for the first heat transfer fluid (A), - a second heat exchange compartment (20) comprising a third circulation path (100c) in which the first heat transfer fluid (A) from the first heat exchange compartment (10) is intended to circulate, and a fourth circulation path (100d) in which a third heat transfer fluid (C) is intended to circulate, said second compartment (20) comprising an inlet (20A) for the first heat transfer fluid (A), and - a third heat exchange compartment (30) comprising a fifth circulation path (100e) in which a fourth heat transfer fluid (D) is intended to circulate, and a sixth circulation path (100f) in which the third heat transfer fluid (C) is intended to circulate, said third compartment (30) comprising an outlet (30C') for the third heat transfer fluid (C), the outlet (10A') for the first heat transfer fluid (A) of the first heat exchange compartment (10) being connected to the inlet (20A) for the first heat transfer fluid (A) of the second heat exchange compartment (20), the outlet (30C') for the third heat transfer fluid (C) of the third heat exchange compartment (30) being connected to the inlet (20C) for the third heat transfer fluid (C) of the second heat exchange compartment (20), the first compartment (10) and the second compartment (20) being stacked such that the outlet (10A') for the first heat transfer fluid (A) of the first compartment (10) is facing and connected to the inlet (20A) for the first heat transfer fluid (A) of the second compartment (20) and in that the third compartment (30) is arranged side by side with the first compartment (10) the heat exchanger (1) being characterized in that the side-by-side parts of the first (10) and third (30) compartments are made from a single stack of plates (100) comprising both the first (100a), second (100b), fifth (100e) and sixth (100f) circulation paths.
2. Heat exchanger (1) according to claim 1, characterized in that the first (10) and the third (30) heat exchange compartment are arranged side by side and stacked on the same side of the second heat exchange compartment (20), the outlet (30C') for the third heat transfer fluid (C) of the third heat exchange compartment (30) is facing and connected to the inlet (20C) for the third heat transfer fluid (C) of the second heat exchange compartment (20).
3. Heat exchanger (1) according to claim 1, characterized in that the third compartment (30) is arranged side by side with the superposition of the first (10) and second (20) compartments.
4. Heat exchanger (1) according to claim 3, characterized in that the second (20) and third (30) compartments are made from two distinct stacks of plates (100).
5. Heat exchanger (1) according to claim 3, characterized in that the side-by-side parts of the second (20) and third (30) compartments are made from a single stack of plates (100) comprising both the third (100c), fourth (100d), fifth (100e) and sixth (100f) circulation paths.
6. Heat exchanger (1) according to any one of the preceding claims, characterized in that it comprises a fourth heat exchange compartment (40) comprising: - a seventh circulation path (100i) in which the fourth heat transfer fluid (D) is intended to circulate, and - an eighth circulation path (100j) in which the third heat transfer fluid (C) is intended to circulate.
7. Heat exchanger (1) according to the preceding claim, characterized in that the outlet (40C') for the third heat transfer fluid (C) of the fourth heat exchange compartment (40) as well as the outlet (30C') for the third heat transfer fluid (C) of the third heat exchange compartment (30) are connected to the inlet (20C) for the third heat transfer fluid (C) of the second heat exchange compartment (20).
8. Heat exchanger (1) according to any one of claims 1 to 5, characterized in that the first heat exchange compartment (10) is a water condenser: - the first circulation path (100a) being intended to be traversed by the first heat transfer fluid (A), said first heat transfer fluid (A) being a high-pressure refrigerant fluid circulating in a thermal management loop (X), - the second circulation path (100b) being intended to be traversed by the second heat transfer fluid (B), said second heat transfer fluid (B) being a heat transfer fluid circulating in an auxiliary thermal management loop (Y), the third heat exchange compartment (30) being a cooler: - the fifth circulation path (100e) being intended to be traversed by the fourth heat transfer fluid (D), said fourth heat transfer fluid (D) being a heat transfer fluid circulating in an auxiliary thermal management loop (Y, Z), - the sixth circulation path (100f) being intended to be traversed by the third heat transfer fluid (C), said third heat transfer fluid (C) being the low-pressure refrigerant fluid circulating in the thermal management loop (X), the second heat exchange compartment (20) being an internal heat exchanger: - the third circulation path (100c) being intended to be traversed by the high-pressure refrigerant fluid (A) having traversed the first heat exchange compartment (10), corresponding to the first heat transfer fluid, - the fourth circulation path (100d) being intended to be traversed by the low-pressure refrigerant fluid (C) having traversed the third heat exchange compartment (30), corresponding to the third heat transfer fluid.