Thermal regulation device

Abstract

Title: Thermal Regulation Device The invention relates to a thermal regulation device (1) for the cooling and / or heating of at least one component (2) whose operation is sensitive to temperature, this component being in particular a power electronic module of an inverter or a battery cell, this thermal regulation device comprising a stack of at least three plates (14), in particular brazed together, within which is arranged a heat transfer fluid circuit (15), this thermal regulation device having an external face (10) on which one or more components (2) can be placed, for example a power electronic module,the heat transfer fluid circuit (15) comprising at least: a first section (17) of heat transfer fluid circulation provided with first flow perturbation elements (18) configured to promote heat transfer in a first flow rate range of the heat transfer fluid in this first section (17), and a second section (19) of heat transfer fluid circulation provided with second flow perturbation elements (20) to promote heat transfer in a second flow rate range of the heat transfer fluid in this second section (19). Figure for the abbreviation: Fig. 2,

Description

Title of the invention: Thermal regulation device

[0001] The present invention relates to a thermal regulation device for cooling and / or heating at least one component whose operation is sensitive to temperature, this component being in particular an electronic power module of an inverter or a battery cell.

[0002] In the context of electrification in the automotive field, many electronic components are being developed or improved for higher power and duty cycle. Generally speaking, the electronics used are impacted by the quality of thermal management because the electronic components have a usage temperature limit. Consequently, there is a significant need to optimize the cooling of these electronic components in order to improve durability or reduce the costs related to these components. The electronic components may be, for example, components of an electric machine of the vehicle, components of a DC-DC converter, an on-board charger, an inverter, etc.

[0003] For some of these components, the heat flow produced by these components is high due to the small surface areas (very small components). It is also required to have homogeneity of maximum temperatures between several heat sources that are the components.

[0004] In some configurations, the components are arranged in series. For example, an electrical machine and the associated inverter are arranged in series to optimize compactness (or packaging) but this arrangement generates temperature constraints and minimum flow rate of a heat transfer fluid used to cool these components.

[0005] The components to be cooled are, for example, switching cell modules of an inverter. This type of component is temperature-sensitive and requires precise thermal management. Until now, a thermal device with a copper base plate with cooling elements in the form of machined pins immersed in a flow of coolant allows this thermal management. In this thermal device, the temperature is not homogeneous because the arrangement of the pins is the same throughout the plate, imposing a constant heat transfer coefficient. Due to natural heating of the fluid along the plate, the heat exchange capacity decreases and generates a non-homogeneous temperature profile at the components.

[0006] The present invention aims in particular to further improve the thermal regulation of components, in particular for cooling them, by proposing thermally efficient solutions with a simpler design and / or less expensive to manufacture.

[0007] The invention thus relates to a thermal regulation device for cooling and / or heating at least one component whose operation is sensitive to temperature, this component being in particular an electronic power module of an inverter or a battery cell, this thermal regulation device comprising a stack of at least three plates, in particular brazed together, within which a heat transfer fluid circuit is arranged, this thermal regulation device having an external face on which one or more components can be placed, for example an electronic power module, the heat transfer fluid circuit comprising at least: - a first heat transfer fluid circulation section provided with first fluid flow disturbance elements configured to promote heat transfer in a first flow rate range of the heat transfer fluid in this first section, and - a second heat transfer fluid circulation section provided with second fluid flow disturbance elements to promote heat transfer in a second flow rate range of the heat transfer fluid in this second section, and the second disturbance elements (20) being configured to produce less pressure loss than the first disturbance elements (18) and the first and second sections being communicating.

[0008] The present invention is advantageous insofar as, for the different flow rate values ​​of the heat transfer fluid used during the operation of the thermal regulation device, it is possible to have satisfactory thermal performance.

[0009] In other words, the invention makes it possible to maintain good thermal performance over a wide range of heat transfer fluid flow rates.

[0010] In particular, the first circulation section with its first disturbance elements makes it possible to offer good thermal performance in the first flow rate range while the second circulation section with its second disturbance elements makes it possible to offer good thermal performance in the second flow rate range.

[0011] By choosing the two flow rate ranges so that they allow good thermal performance to be maintained over an overall range which is the total of the first and second flow rate ranges, the invention allows good thermal performance to be achieved for the different operating modes that the thermal regulation device may experience.

[0012] This is particularly advantageous when the flow rate of fluid passing through the thermal regulation device is imposed, for example, by an electric motor which is to be cooled in series with the thermal regulation device.

[0013] Preferably, a single heat transfer fluid circulates in the thermal regulation device. The thermal regulation device is of the single-fluid type, and not of the two-fluid type.

[0014] Thus we have a circulation of the same fluid in all the stages formed by the stack of plates.

[0015] According to one aspect of the invention, the first flow rate range and the second flow rate range overlap such that, in the overlapping flow rate range, the thermal performance enabled by the first disturbance elements is substantially similar to the thermal performance enabled by the second disturbance elements.

[0016] Alternatively, the first and second disturbance elements are configured such that the first flow rate range is distant from the second flow rate range.

[0017] In this case, an intermediate range may appear between the first range and the second flow rate range, an intermediate range in which the thermal performance is reduced compared to the thermal performance permitted in the first flow rate range and in the second flow rate range.

[0018] According to one aspect of the invention, the fluid circuit comprises at least a first heat transfer fluid circulation stage and a second heat transfer fluid circulation stage, these first and second heat transfer fluid circulation stages being substantially parallel to the external face, and the first heat transfer fluid circulation stage being arranged between this external face and the second heat transfer fluid circulation stage.

[0019] According to one aspect of the invention, the first section extends over the first heat transfer fluid circulation stage, and the first disturbance elements are configured to promote heat transfer in the first flow rate range which is lower than the second flow rate range.

[0020] The first flow rate range is lower than the second flow rate range in the sense that the flow rate values ​​in the first range are, at least for some, lower than the smallest flow rate in the second value range. It is recalled that the first range and the second range may overlap or be separated by an intermediate range.

[0021] Thus the first stage makes it possible to promote thermal performance for lower flow rates while the second stage makes it possible to promote thermal performance for flow rates higher than those of the first range.

[0022] According to one aspect of the invention, the circulation of fluid takes place in parallel between the two stages, in particular according to a circulation perpendicular to the main longitudinal direction in which each plate of the device extends.

[0023] Parallel fluid circulation between stages is preferred to series circulation between stages, because the fluid balances as a function of flow rate, and performance is optimized thanks to the two types of disruptors.

[0024] In a variant, the reverse can be done, namely the first section extends over the first heat transfer fluid circulation stage, and the first disturbance elements are configured to promote heat transfer in the first flow rate range which is greater than the second flow rate range.

[0025] According to one aspect of the invention, the first disturbance elements in the first section, namely the section with the lower flow rate range, comprise fins between which the heat transfer fluid flows.

[0026] According to one aspect of the invention, the fins, in particular louvered fins, are formed on a corrugated structure with flanks which form the fins.

[0027] According to one aspect of the invention, the corrugated structure comprises a succession of identical corrugations, in particular spaced from each other with a regular pitch.

[0028] Alternatively, the corrugations of the corrugated structure may be spaced with a pitch that may vary between at least some of the corrugations.

[0029] According to one aspect of the invention, the undulations alternately have rounded peaks and rounded valleys.

[0030] According to one aspect of the invention, the undulations are all parallel to each other.

[0031] According to one aspect of the invention, the undulations extend over the entire first stage.

[0032] According to one aspect of the invention, the first stage, or the second stage, comprises a fluid supply chamber and a fluid discharge chamber with which it communicates, and the fluid flows in the first stage between the fluid inlet chamber and the fluid outlet chamber.

[0033] According to one aspect of the invention, the fluid outlet chamber is arranged on a side opposite the fluid inlet chamber, in particular on longitudinal edges of the plates forming the stage.

[0034] According to one aspect of the invention, the fluid circuit comprises a heat transfer fluid distribution stage and / or a heat transfer fluid collection stage configured to distribute and / or collect fluid from the fluid circulation stages.

[0035] According to one aspect of the invention, the corrugations of the corrugated structure extend from the inlet chamber to the outlet chamber.

[0036] In other words, the apex lines and the valley lines of the corrugated structure are substantially perpendicular to the fluid inlet chamber and outlet chamber.

[0037] According to one aspect of the invention, the corrugated structure is made from a metal sheet, in particular an aluminum sheet.

[0038] According to one aspect of the invention, the sheet has been shaped to obtain the shape corrugated, for example using a forming machine.

[0039] The forming of the corrugations can be carried out by a roller or wheel (“Mechanical Packing Roll” in English).

[0040] According to one aspect of the invention, the fins comprise louvers providing lateral fluid passages through the fins allowing fluid passing through the louver passages to be distributed in spaces on either side of the louver.

[0041] This makes it possible to obtain a fluid distribution conducive to good thermal performance because the shutters act as a disruptor of the fluid flow.

[0042] According to one aspect of the invention, the corrugated structure has a height equal to the height of the first section so that the fins come into contact with two opposite faces of the first section. Instead of being louvered and corrugated, the fins can also be straight in the flow direction.

[0043] The corrugated structure is part of the stack of plates.

[0044] According to one aspect of the invention, the second section extends over the second heat transfer fluid circulation stage, and the second disturbance elements are configured to promote heat transfer in the second flow rate range which is greater than the first flow rate range.

[0045] According to one aspect of the invention, the second disturbance elements comprise shapes present on a wall of the second section.

[0046] According to one aspect of the invention, the height of these shapes is less than the height of the second section.

[0047] According to one aspect of the invention, the second disturbance elements are called “Dimples” in English.

[0048] According to one aspect of the invention, the second disturbance elements (or "dimples" in English) are adapted to produce less pressure loss than the fins of the corrugated structure, which makes it possible to compensate for a lower cooling efficiency in contact with these second disturbance elements. The invention makes it possible to have a more compact and lighter thermal regulation device insofar as the corrugated structure can replace thicker plates which are used in known configurations.

[0049] According to one aspect of the invention, the second disturbance elements each have a free vertex, for example at mid-height of the second section.

[0050] According to one aspect of the invention, the top of the second disturbance elements may be rounded.

[0051] According to one aspect of the invention, the base of at least one of the second disturbance elements has a circular, oblong, or polygonal periphery, for example hexagonal.

[0052] According to one aspect of the invention, at least some of the second disturbance elements form a chevron, that is to say that two of these second disturbance elements are arranged so that they are arranged substantially like two branches of a V.

[0053] According to one aspect of the invention, these two branches of the V can touch or be at a distance from each other.

[0054] According to one aspect of the invention, the second disturbance elements are stamped shapes of a plate, in particular an aluminum plate.

[0055] According to one aspect of the invention, the stack of plates comprises an intermediate plate between a corrugated structure and a plate which carries the second disturbance elements, for example, the intermediate plate is a flat distribution plate provided with fluid inlet and outlet orifices.

[0056] According to one aspect of the invention, the stack of plates comprises an intermediate plate between the corrugated structure and the plate which carries the second disturbance elements. For example, the intermediate plate is a flat distribution plate provided with fluid inlet and outlet orifices. Alternatively, the intermediate plate is a stamped plate whose stamped shapes define second disturbance elements (such as "Dimples" in English).

[0057] According to one aspect of the invention, the fluid inlet and outlet ports are in the collection chambers.

[0058] According to one aspect of the invention, the last section of fluid, for example the one which receives the corrugated structure, is in contact with a cover plate on the external face of which the areas for placing the components to be cooled are formed.

[0059] According to one aspect of the invention, the thermal regulation device comprises a collector base provided with at least one fluid inlet and outlet to be connected to external conduits.

[0060] According to one aspect of the invention, the collector base comprises a distribution channel supplied by the fluid inlet and a discharge channel connected to the fluid outlet.

[0061] According to one aspect of the invention, the distribution channel and the evacuation channel each have a substantially triangular shape and are in particular symmetrical to each other by an axis of symmetry which extends along a diagonal of the collector base.

[0062] According to one aspect of the invention, the height of the first section is greater than the height of the second section, in particular at least twice, or even three times greater.

[0063] According to one aspect of the invention, the height is measured in the direction of the stacking of plates, and therefore generally perpendicular to the planes of the plates.

[0064] According to one aspect of the invention, the first section has a height of between 4 and 5 mm, being in particular 4.5 mm. The pitch between the corrugations may be 1.25 mm. The thickness of material at the level of the corrugations is for example approximately 0.1 mm.

[0065] According to one aspect of the invention, the second section has a height of between 0.5 and 1.5 mm, being in particular 1 mm. The height of the shapes of the second disturbance elements is approximately 0.35 mm.

[0066] Other characteristics, details and advantages of the invention will emerge more clearly on reading the description which follows on the one hand, and several exemplary embodiments given for informational and non-limiting purposes with reference to the appended schematic drawings on the other hand, in which:

[0067] [Fig-1] [Fig. 1] is a perspective representation of a thermal regulation device according to the invention;

[0068] [Fig.2] [Fig.2] is a sectional and perspective representation of the device of thermal regulation of [Fig.l];

[0069] [Fig.3] [Fig.3] is a sectional representation of the regulating device thermal of [Fig.l], in the section plane;

[0070] [Fig.4] [Fig.4] is a perspective representation of the collector base of the thermal regulation device of [Fig.l];

[0071] [Fig.5] [Fig.5] is a perspective representation of one of the plates of the thermal regulation device of [Fig.l];

[0072] [Fig.6] [Fig.6] is a perspective representation of another of the plates of the thermal regulation device of [Fig.l].

[0073] The features, variants and different embodiments of the invention may be combined with each other, in various combinations, provided that they are not incompatible or mutually exclusive. In particular, variants of the invention may be imagined comprising only a selection of features described below in isolation from the other features described, if this selection of features is sufficient to confer a technical advantage and / or to differentiate the invention from the prior art.

[0074] Figures 1 and 2 show a thermal regulation device 1 for cooling and / or heating components 2 whose operation is sensitive to temperature.

[0075] As illustrated in FIG. 2, this thermal regulation device 1 is part of an assembly 100 which comprises electronic components 2 placed on an external face 10 of the thermal regulation device 1 to be cooled by the fluid paths. in the thermal regulation device 1. These components 2 are in particular electronic power modules of an inverter or battery cells.

[0076] This thermal regulation device 1 comprises a collector base 4 forming a base of the thermal regulation device 1, this collector base 4 having a longitudinal shape in direction X. As visible in [Fig.4], the collector base 4 comprises a fluid inlet orifice 5 and a fluid outlet orifice 6 configured to be connected respectively to an external fluid inlet pipe 8 and fluid outlet pipe. This fluid inlet orifice 5 and this fluid outlet orifice 6 are arranged at two opposite ends along the axis X, of the collector base 4.

[0077] In the example described, the thermal regulation device 1 comprises a stack of plates 14, here brazed together, within which a heat transfer fluid circuit 15 is arranged. The assembly has a generally rectangular perimeter.

[0078] The stack of plates 14 also includes the collector base 4 which therefore forms the lower plate of the stack, lower plate through which the fluid connections are made.

[0079] The collector base 4 comprises a distribution channel 41 supplied by the fluid inlet 5 and an evacuation channel 42 connected to the fluid outlet 6.

[0080] Here the distribution channel 41 and the evacuation channel 42 each have a substantially triangular shape and are in particular symmetrical to each other by an axis of symmetry which extends along a diagonal of the collector base 4, which has a substantially rectangular perimeter.

[0081] A cover plate 40 closes the stack of plates and defines the external face 10.

[0082] The plates 14, the cover plate 40 and the collector base 14 are for example made of metal, for example aluminum.

[0083] The heat transfer fluid circuit 15 comprises at least: - a first section 17 for circulating heat transfer fluid provided with first elements 18 for disturbing the flow of fluid configured to promote heat transfer in a first flow rate range of the heat transfer fluid in this first section 17, and - a second section 19 for circulating heat transfer fluid provided with second elements 20 for disturbing the flow of fluid to promote heat transfer in a second flow range of the heat transfer fluid in this second section 19.

[0084] The second disturbance elements 20 are configured to produce less pressure loss than the first disturbance elements 18 and the first and second sections 17 and 19 are communicating.

[0085] A single heat transfer fluid circulates in the thermal regulation device 1. The thermal regulation device 1 is of the monofluid type, and not bifluid.

[0086] The first flow rate range and the second flow rate range overlap such that, in the overlapping flow rate range, the thermal performance enabled by the first disturbance elements 18 is substantially similar to the thermal performance enabled by the second disturbance elements 20.

[0087] Alternatively, the first and second disturbance elements 18, 20 are configured such that the first flow rate range is distant from the second flow rate range.

[0088] In this case, an intermediate range may appear between the first range and the second flow rate range, an intermediate range in which the thermal performance is reduced compared to the thermal performance permitted in the first flow rate range and in the second flow rate range.

[0089] The fluid circuit 15 comprises at least a first heat transfer fluid circulation stage E1 and a second heat transfer fluid circulation stage E2, these first and second heat transfer fluid circulation stages E1 and E2 being substantially parallel to the external face 10, and the first heat transfer fluid circulation stage E1 being arranged between this external face 10 and the second heat transfer fluid circulation stage E2.

[0090] As visible in [Fig.3], the first section 17 extends over the first stage E1 of circulation of heat transfer fluid, and the first disturbance elements 18 are configured to promote the transfer of heat in the first flow rate range which is lower than the second flow rate range.

[0091] The first flow rate range is lower than the second flow rate range in the sense that the flow rate values ​​in the first range are, at least for some, lower than the smallest flow rate in the second value range. It is recalled that the first range and the second range may overlap or be separated by an intermediate range.

[0092] Thus the first stage E1 makes it possible to promote thermal performance for lower flow rates while the second stage E2 makes it possible to promote thermal performance for flow rates higher than those of the first range.

[0093] The circulation of fluid takes place in parallel between the two stages E1 and E2, preferably in the same flow direction F.

[0094] The first disturbance elements 18 in the first section 17, namely the section with lower flow rates, comprise fins 21 between which the heat transfer fluid flows.

[0095] The fins 21 are louvered and are formed on a corrugated structure 22, for example in one piece, with sides which form the fins 21.

[0096] The corrugated structure 22 comprises a succession of identical corrugations, spaced from each other with a regular pitch, as illustrated in Figures 3 and 6.

[0097] Alternatively, the corrugations of the corrugated structure may be spaced with a pitch that may vary between at least some of the corrugations.

[0098] The undulations alternately have rounded peaks 23 and rounded valleys 24.

[0099] The corrugated structure 22 extends over the entire first stage EL

[0100] The first stage E1 communicates with a fluid supply chamber 26 and with a fluid discharge chamber 27, and the fluid flows in the first stage between the fluid inlet chamber and the fluid outlet chamber.

[0101] These chambers 26 and 27 define lateral collectors.

[0102] The fluid outlet chamber 27 is arranged on a side opposite to the fluid inlet chamber 26.

[0103] The corrugations of the corrugated structure 22 extend from the inlet chamber 26 to the outlet chamber 27.

[0104] In other words, the apex lines and the valley lines of the corrugated structure 22 are substantially perpendicular to the fluid inlet chamber 26 and outlet chamber 27.

[0105] The corrugated structure 22 is made from a metal sheet, in particular an aluminum sheet. The sheet has been shaped to obtain the corrugated shape, for example using a forming machine. The forming of the corrugations can be carried out by a roller or wheel (“Mechanical Packing Roll” in English).

[0106] The fins 21 include louvers providing lateral fluid passages through the fins allowing fluid passing through the louver passages to be distributed in spaces on either side of the louver.

[0107] The corrugated structure 22 has a height equal to the height of the first section 17 so that the fins 21 come into contact with two opposite faces of the first section 17. Instead of being louvered and corrugated, the fins can also be straight in the direction of flow.

[0108] The second disturbance elements 20 comprise shapes present on a wall 29 of the second section 19.

[0109] The height of these shapes 20 is less than the height of the second section 19. The second disturbance elements 20 are called “Dimples” in English, and are adapted to produce less pressure loss than the fins of the corrugated structure 22, which makes it possible to compensate for lower cooling efficiency in contact with these second disturbance elements 20.

[0110] The second disturbance elements 20 each have a free vertex, for example at mid-height of the second section 19.

[0111] The top of the second disturbance elements 20 may be rounded.

[0112] The base of the second disturbance elements 20 has a circular circumference, oblong, or polygonal for example hexagonal.

[0113] In the example described, the second disturbance elements 20 form chevrons, that is, two of these second disturbance elements are arranged so that they are arranged substantially like two branches of a V.

[0114] These two branches of the V can touch or be at a distance from each other.

[0115] The second disturbance elements 20 are stamped shapes of a plate 14.

[0116] The stack of plates 14 comprises an intermediate plate 31 between the corrugated structure 22 and the plate 14 which carries the second disturbance elements 20. Here, the intermediate plate 31 is a flat distribution plate provided with fluid inlet orifices 32 and outlet orifices 33, as visible in [Fig. 2]. These fluid inlet orifices 32 and outlet orifices 33 are in the fluid supply chamber 26 and the fluid discharge chamber 27.

[0117] The corrugated structure 22 is in contact with the cover plate 40.

[0118] The height of the first section 17 is greater than the height of the second section 19, in particular at least twice, or even three times greater.

[0119] The height is measured in the Z direction of the stack of plates, and therefore generally perpendicular to the planes of the plates 14.

[0120] The first section 17 has a height of between 4 and 5 mm, being in particular 4.5 mm. The pitch between the corrugations can be 1.25 mm. The thickness of material at the level of the corrugations is for example approximately 0.1 mm.

[0121] The second section 19 has a height of between 0.5 and 1.5 mm, being in particular 1 mm. The height of the shapes of the second disturbance elements is approximately 0.35 mm.

Claims

Claims

1. Thermal regulation device (1) for cooling and / or heating at least one component (2) whose operation is temperature-sensitive, this component being in particular an electronic power module of an inverter or a battery cell, this thermal regulation device comprising a stack of at least three plates (14), in particular brazed together, within which a heat transfer fluid circuit (15) is arranged, this thermal regulation device having an external face (10) on which one or more components (2) can be placed, for example an electronic power module, the heat transfer fluid circuit (15) comprising at least: - a first section (17) for circulation of heat transfer fluid provided with first elements (18) for disturbing the flow of fluid configured to promote heat transfer in a first flow range of the heat transfer fluid in this first section (17),and - a second section (19) for circulating heat transfer fluid provided with second disturbance elements (20) of the fluid flow to promote heat transfer in a second flow rate range of the heat transfer fluid in this second section (19), and the second disturbance elements (20) being configured to produce less pressure loss than the first disturbance elements (18) and the first and second sections being communicating.,

2. Thermal regulation device (1) according to the preceding claim, wherein the first flow rate range and the second flow rate range overlap such that, in the overlapping flow rate range, the thermal performance enabled by the first disturbance elements (18) is substantially similar to the thermal performance enabled by the second disturbance elements (20).

3. A thermal control device (1) according to claim 1, wherein the first and second disturbance elements (18, 20) are configured such that the first flow rate range is distant from the second flow rate range.

4. Thermal regulation device (1) according to one of the preceding claims, in which the fluid circuit comprises at least a first stage (El) for circulating heat transfer fluid and a second stage (E2) for circulating heat transfer fluid, these first and second stages for circulating heat transfer fluid being substantially parallel to the external face, and the first stage (El) for circulating heat transfer fluid being arranged between this external face and the second stage (E2) for circulating heat transfer fluid.

5. Thermal regulation device (1) according to the preceding claim, in which the first section (17) extends over the first stage (El) of circulation of heat transfer fluid, and the first disturbance elements (18) are configured to promote the transfer of heat in the first flow rate range which is lower than the second flow rate range.

6. Thermal regulation device (1) according to claim 4 or 5, in which the circulation of fluid takes place in parallel between the two stages (El, E2), in particular according to a circulation perpendicular to the main longitudinal direction in which each plate of the device extends.

7. Thermal regulation device (1) according to one of claims 4 to 6, in which the second section (19) extends over the second stage (E2) of circulation of heat transfer fluid, and the second disturbance elements (20) are configured to promote the transfer of heat in the second flow rate range which is greater than the first flow rate range, the second disturbance elements (20) comprising in particular shapes present on a wall of the second section (19), in particular the height of these shapes being less than the height of the second section (19).

8. Thermal regulation device (1) according to one of claims 4 to 7, in which the first stage (El), or the second stage (E2), comprises a fluid supply chamber (26) and a fluid outlet chamber (27) with which it communicates, and the fluid flows in the first stage (El) between the fluid inlet chamber and the fluid outlet chamber.

9. Thermal regulation device (1) according to the preceding claim, in which the fluid outlet chamber (27) is arranged on a side opposite to the fluid inlet chamber (26), in particular on longitudinal edges of the plates forming the stage.

10. Thermal regulation device (1) according to one of claims 4 to 7, wherein the fluid circuit comprises a heat transfer fluid distribution stage and / or a heat transfer fluid collection stage configured to distribute and / or collect fluid from the fluid circulation stages.

11. Thermal control device (1) according to one of the preceding claims, wherein the first disturbance elements (18) in the first section (17), namely the section with the lower flow rate range, comprise fins (21) between which the heat transfer fluid flows, and the fins, in particular louvered fins, are in particular formed on a corrugated structure (22) with flanks which form the fins.

12. Thermal regulation device (1) according to the preceding claim, in which the corrugated structure (22) comprises a succession of identical corrugations, in particular spaced from each other with a regular pitch.

13. Thermal regulation device (1) according to one of the preceding claims, wherein at least some of the second disturbance elements (20) form a chevron, i.e. two of these second disturbance elements (20) are arranged so that they are arranged substantially like two branches of a V.

14. Thermal regulation device (1) according to one of the preceding claims, in which the stack of plates comprises an intermediate plate (31) between a corrugated structure (22) and a plate which carries the second disturbance elements (20), for example, the intermediate plate is a flat distribution plate provided with fluid inlet (32) and outlet (33) orifices.

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