Thermal regulation device with central collector

Abstract

Title of the invention: Thermal regulation device with central collector The present invention relates to a thermal regulation device (1) extending in a longitudinal-transverse plane, comprising a first tube (12), a second tube (14) and a collector (6), the tubes (12, 14) comprising channels (24) configured for the circulation of a heat transfer fluid distributed in a first circulation assembly (26) and a second circulation assembly (28), the collector (6) comprising a heat transfer fluid inlet (8) and a heat transfer fluid outlet (10), and a common connection end piece (31) forming a connection end piece (30) of the fluid inlet (8) and a connection end piece (32) of the fluid outlet (10) of the collector (6), said common end piece (31) being turned towards the first transverse end (34), characterized in that the common end piece (31) is made of plastic, and in that the device comprises a first sealing means (33),for example a seal (33) arranged between the common end piece (31) and the collector (6), as well as at least one means (35) for fixing the common end piece (31) to the collector (6) configured to compress said seal (33) between the common end piece (31) and the collector (6). Abstract figure: Figure 1,

Description

Title of the invention: Thermal regulation device with central collector

[0001] The present invention relates to the field of thermal regulation devices and more particularly to the means used to regulate the temperature of electrical energy storage devices fitted to vehicles.

[0002] It is known nowadays to equip electric or hybrid vehicles with electrical energy storage systems allowing an electrical supply to the various elements of the vehicle. These electrical energy storage systems are generally composed of electrical energy storage units or electrical energy storage cells, positioned in a battery module or battery pack.

[0003] During vehicle operation, battery packs can release a significant amount of heat and therefore be subjected to high temperatures within the module which can in certain cases cause performance losses, damage to them or even destruction. Consequently, their cooling is essential in order to keep them in good condition and thus ensure the reliability, autonomy and performance of the vehicle.

[0004] Furthermore, the operation of battery packs may be less efficient in the event of low temperatures, the electrical or electronic components equipping these battery packs then needing time to warm up before operating at full efficiency.

[0005] To do this, one or more thermal regulation devices intended to regulate the temperature of the battery packs are implemented to ensure the heating and / or cooling functions of the electrical or electronic components inside these battery packs and thus optimize the operation of the different components.

[0006] These thermal regulation devices are generally traversed by a thermal regulation fluid which can, depending on requirements, either absorb the heat emitted by each battery pack in order to cool it, or provide heat if the temperature of the battery pack is insufficient for its proper functioning.

[0007] The battery packs may consist, for example, of rows of electrical energy storage members in the form of cylindrical or tubular cells. Thermal regulation devices in the form of corrugated plates may be interposed between such rows, the thermal regulation fluid then passing through these corrugated plates in order to recover or release calories with the cells. cylindrical in contact with which the plates of the thermal regulation device are arranged.

[0008] It is known in the prior art to propose thermal regulation devices in which a collector, which allows both an inlet and an outlet of fluid, is placed at a longitudinal end of the thermal regulation device. The thermal regulation fluid then circulates from the load-bearing longitudinal end of this collector to the opposite longitudinal end, then returns to the collector in the opposite direction. Such an arrangement does not, however, allow good homogeneity in the exchange of calories between the thermal regulation fluid and each of the cylindrical cells in contact with the thermal regulation device, the thermal regulation fluid being caused to circulate over a long path within the thermal regulation device.

[0009] In the context of thermal regulation devices such as described previously by way of example, an electrical insulation function may be necessary.

[0010] A coating must then be added to the exchanger which is thermally and electrically conductive due to the classic optimized choice of materials, generally aluminum.

[0011] The area to which this electrical insulation is to be applied is generally defined in advance, taking into account several factors:

[0012] the location of the batteries in relation to the exchanger;

[0013] the potential conditions leading to the formation of an electric arc in the event of a failure on the battery pack;

[0014] The technical difficulty lies in finding a technical solution to meet the need for electrical insulation.

[0015] In the case where the electrical insulation function is necessary and depending on the location required for this function, it may be difficult to achieve this function only by applying a surface coating to the exchanger. Indeed, applying a coating to a complex component can be difficult to carry out in a repeatable and safe manner, and the process is complex.

[0016] In addition, this insulation solution may have to be applied to a significant portion of the product due to its proximity to the batteries.

[0017] This results in a need to provide a simple and inexpensive insulating solution which makes it possible to prevent the electric arc from propagating in conductive materials not coated by the insulating layer.

[0018] The present solution aims to solve the technical problem by proposing a specific device.

[0019] The present invention thus has as its main object a device for thermal regulation of electrical energy storage members extending mainly in a longitudinal-transverse plane between a first longitudinal end and a second longitudinal end, each of these longitudinal ends being equipped with a return box, the thermal regulation device comprising a first tube, a second tube and a collector, each of the tubes having a first end connected to the collector and a second end connected to one of the return boxes, the tubes each comprising a plurality of channels configured for the circulation of a heat transfer fluid distributed in at least a first circulation assembly and a second circulation assembly superimposed on one another in a transverse direction, the collector comprising a heat transfer fluid inlet and a heat transfer fluid outlet, the fluid inlet being arranged on a first side of the longitudinal-transverse plane and the fluid outlet being arranged on a second side, opposite the first, of the longitudinal-transverse plane,the first circulation assembly of each of the tubes opening into the fluid inlet and the second circulation assembly of each of the tubes opening into the fluid outlet, the device comprising a first transverse end and a second transverse end opposite the first transverse end, and a common connection end piece forming a connection end piece for the fluid inlet and a connection end piece for the fluid outlet of the collector, said common end piece being turned towards the first transverse end, characterized in that the common end piece is made of plastic, and in that the device comprises a first sealing means, for example a seal arranged between the common end piece and the collector, as well as at least one means for fixing the common end piece to the collector configured to compress said seal between the common end piece and the collector.

[0020] Advantageously, this makes it possible to obtain a device whose tip is electrically insulated and easily produced, for example by molding, while making it possible to adapt the device to the space constraints of each different product by making it possible to modify only the common tip.

[0021] According to one aspect of the invention, the collector comprises a distribution chamber and a collection chamber, the fluid inlet of the collector opening into the distribution chamber and the fluid outlet opening into the collection chamber, the collector further comprising a partition, in particular a central partition, separating the distribution chamber and the collection chamber.

[0022] According to one aspect of the invention, the chambers of the collector are open towards the first transverse end, the common end piece being connected to said chambers by these openings.

[0023] According to one aspect of the invention, the common end piece encompasses the collector so as to electrically insulate it.

[0024] According to one aspect of the invention, the common end piece forms a housing comprising a part forming a cover facing the first transverse end, and a part forming a base facing the second transverse end, the two parts being connected in particular in a removable manner, for example by clipping complementary elements.

[0025] According to one aspect of the invention, the base comprises at least one means for fixing the common end piece to the collector.

[0026] According to one aspect of the invention, the cover and the base each comprise means for fixing the common end piece to the collector.

[0027] According to one aspect of the invention, at least one of the chambers of the collector is open towards the second transverse end, the base being configured to close the at least one chamber when said base is connected to the cover of the common end piece.

[0028] According to one aspect of the invention, the device further comprises a second sealing means between the base and the collector, the base being configured to compress this second sealing means when it is connected to the cover of the common end piece.

[0029] The invention further relates to a thermal regulation system for a motor vehicle, comprising a plurality of thermal regulation devices as described previously and a plurality of electrical energy storage members, the thermal regulation devices being arranged along the electrical energy storage members, the thermal regulation system comprising a distribution manifold connected to the collectors of the thermal regulation devices.

[0030] The thermal regulation devices are arranged between rows of electrical energy storage members, in contact with them. The collectors of each of the thermal regulation devices are connected to a fluid circuit of the thermal regulation system by means of a distribution manifold; it is understood that this distribution manifold is connected to each connection end piece of the thermal regulation devices. The distribution manifold is for example integrated into the housing of the battery pack.

[0031] Other characteristics, details and advantages of the invention will emerge more clearly on reading the description which follows on the one hand, and examples of embodiment given for informational and non-limiting purposes with reference to the appended drawings on the other hand, in which:

[0032] [Fig.l] illustrates, schematically, a thermal regulation device according to the invention, directions of circulation of a heat transfer fluid being represented by arrows;

[0033] [Fig.2] illustrates, schematically, a detail of a first embodiment of the thermal regulation device of [Fig.l], in exploded view;

[0034] [Fig.3] illustrates, schematically, a detail of a second embodiment of the thermal regulation device according to the invention;

[0035] [Fig.4] illustrates, schematically, a detail of a third embodiment of the thermal regulation device 1, the collector of this third embodiment being enclosed by the common end piece forming a housing.

[0036] [Fig.5] illustrates, schematically, the third embodiment of the device of thermal regulation 1, in exploded view;

[0037] [Fig.6] illustrates, schematically, a detail of the collector of a fourth mode of production of the thermal regulation device of [Fig.l] seen from below, before closing the collector by the base of the common end piece;

[0038] [Fig.7] illustrates, schematically, a fifth embodiment of the device thermal regulation according to the invention, the collector of this second embodiment being shown in a sectional view;

[0039] [Fig.8] illustrates, schematically, a concept according to a sixth embodiment of the thermal regulation device 1, the collector of this embodiment being separated into two columns represented by dotted lines and the tubes have a folded portion.

[0040] 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.

[0041] In the figures, the elements common to several figures retain the same reference.

[0042] In the detailed description which follows, the terms “longitudinal”, “transverse” and “vertical” refer to the orientation of the thermal regulation device according to the invention. A longitudinal direction corresponds to a main direction of extension of the thermal regulation device, this longitudinal direction being parallel to a longitudinal axis L of a reference frame L, V, T illustrated in the figures. A transverse direction corresponds to a main direction of extension of the collector of the thermal regulation device, this transverse direction being parallel to a transverse axis T of the reference L, V, T and this transverse axis T being perpendicular to the longitudinal axis L. Finally, a vertical direction corresponds to a direction parallel to a vertical axis V of the reference L, V, T, this vertical axis V being perpendicular to the longitudinal axis L and to the transverse axis T.

[0043] Furthermore, in the present description the term “heat transfer fluid” may refer to any cooling, refrigerant, thermal regulation, dielectric or two-phase fluid, provided that this fluid, liquid or gaseous, has the effect of cooling or heating electrical energy storage devices.

[0044] The figures thus illustrate, schematically, a thermal regulation device 1 according to the invention. This thermal regulation device 1 is intended to equip a motor vehicle, in particular a hybrid or electric vehicle, in order to cool and / or heat electrical energy storage members. Such electrical energy storage members, which are cylindrical cells within the scope of the invention, allow an electrical supply to the various elements of the motor vehicle. The thermal regulation device 1 is designed for the circulation of a heat transfer fluid, this heat transfer fluid exchanging calories with the electrical energy storage members to regulate their temperature.

[0045] The thermal regulation device 1 extends mainly in a longitudinal-transverse plane, between a first longitudinal end 2 and a second longitudinal end 4. Between these two longitudinal ends 2, 4, the thermal regulation device 1 comprises a collector 6. This collector 6 makes it possible to convey the heat transfer fluid to the thermal regulation device 1 and to evacuate it therefrom; the collector 6 has for this purpose a fluid inlet 8 and a fluid outlet 10.

[0046] The collector 6 is more precisely arranged in a central portion of the thermal regulation device 1 relative to its longitudinal ends 2, 4. It is understood that the collector 6 is arranged at a distance from the longitudinal ends 2, 4. As illustrated, the collector 6 is here substantially equidistant from the first longitudinal end 2 and the second longitudinal end 4.

[0047] Between the collector 6 and the first longitudinal end 2 is a first tube 12, and between the collector 6 and the second longitudinal end 4 is a second tube 14. Each of these tubes 12, 14 is a corrugated tube, for example made of a metallic material, a section of which along a longitudinal-vertical plane has a sinusoidal shape. Such a sinusoidal shape is complementary to the cylindrical shape of the electrical energy storage members arranged in rows, the tubes 12, 14 being configured to be pressed against these electrical energy storage members. The thermal regulation device 1 is thus placed within a plurality of energy storage members so that at least one lateral face 16 of the tubes 12, 14, or in contact with these electrical energy storage members. The thermal regulation device 1 can advantageously be placed between two successive rows of electrical energy storage members, so that the two lateral faces 16 of the tubes 12, 14 are in contact with the electrical energy storage members.

[0048] The first tube 12 and the second tube 14 are configured for the circulation of the heat transfer fluid, which circulates within each of these tubes 12, 14 between a first end 18 and a second end 20, these ends 18, 20 being opposite in the longitudinal direction L. The first end 18 of each of the tubes 12, 14 is connected to the collector 6 and is inserted into it. The second end 20 of the tubes 12, 14, which is in the vicinity of the first longitudinal end 2 of the thermal regulation device 1 for the first tube 12 and in the vicinity of the second longitudinal end 4 for the second tube 14, is inserted into a return box 22. It is thus understood that there are two return boxes 22, one at each of the longitudinal ends 2, 4 of the thermal regulation device 1. These return boxes 22 are visible in [Fig.l].The tubes 12, 14 are secured by brazing to the collector 6 on the one hand and to one of the return boxes 22 on the other hand in order to prevent leaks of heat transfer fluid.

[0049] Each of the tubes 12, 14 has a plurality of channels 24, which are particularly visible in [Fig. 8]. These channels 24 are circulation conduits for the heat transfer fluid which extend from the first end 18 to the second end 20. The channels 24 are arranged in each of the tubes 12, 14 between their two lateral faces 16, and they are arranged one above the other in the transverse direction T. The channels 24 are substantially parallel to each other.

[0050] The channels 24 are divided into two circulation sets 26, 28, including a first circulation set 26 and a second circulation set 28. Such a distinction between the first circulation set 26 and the second circulation set 28 is illustrated in FIGS. 2, 7, 8 in the form of dashes delimiting the tubes 12, 14 into two substantially equal portions along the longitudinal direction L.

[0051] By way of example, a distance between two adjacent channels 24 of the first circulation assembly 26 or two adjacent channels 24 of the second circulation assembly 28 may be between 1.9 and 2.1 millimeters, while a distance between the channel 24 of the first circulation assembly 26 adjacent to the channel 24 of the second circulation assembly 28 is between 2.9 and 3.1 millimeters, these distances being measured along the transverse direction T.

[0052] Advantageously, a distance between two adjacent channels 24 of the first circulation assembly 26 or two adjacent channels 24 of the second circulation assembly 28 is 2 millimeters, while a distance between the channel 24 of the first circulation assembly 26 adjacent to the channel 24 of the second circulation assembly 28 is 3 millimeters, these measurements being within manufacturing tolerances.

[0053] The distribution of the channels 24 into two circulation assemblies 26, 28 allows optimized thermal regulation within the thermal regulation device 1. The heat transfer fluid thus circulates from the fluid inlet 8 of the collector 6 to the return boxes 22 via the first circulation assemblies 26 of each of the first tube 12 and the second tube 14, and from the return boxes 22 to the fluid outlet 10 via the second circulation assemblies 28 of this first tube 12 and this second tube 14. In other words, the first circulation assembly 26 of each of the tubes 12, 14 opens into the fluid inlet 8, and the second circulation assembly 28 of each of these tubes 12, 14 opens into the fluid outlet 10.

[0054] Due to the central position of the collector 6 within the thermal regulation device 1, it is understood that the heat transfer fluid circulates in a first direction along the longitudinal direction L within the first circulation assembly 26 of the first tube 12, in a second direction opposite to the first direction within the second circulation assembly 28 of this first tube 12, in the second direction within the first circulation assembly 26 of the second tube 14, and in the first direction within the second circulation assembly 28 of the second tube 14. The change of direction of the heat transfer fluid between the first circulation assembly 26 and the second circulation assembly 28 of each of the tubes 12, 14 is allowed by the presence of the return boxes 22, which fluidically connect these circulation assemblies 26, 28 and within which the heat transfer fluid follows a U-shaped circuit.

[0055] The collector 6, its arrangement and its cooperation with each of the first tube 12 and the second tube 14 will now be described in detail.

[0056] According to the invention, the fluid inlet 8 of the collector 6 and its fluid outlet 10 are arranged on opposite sides relative to the longitudinal-transverse plane. The fluid inlet 8 is thus arranged on a first side of the longitudinal-transverse plane and the fluid outlet 10 on a second side thereof. The fluid inlet 8 and the fluid outlet 10 are also opposite each other relative to the longitudinal-transverse plane, so that a straight line connecting the fluid inlet 8 to the fluid outlet 10 at right angles thereto is substantially perpendicular to the longitudinal-transverse plane.

[0057] The heat transfer fluid is conveyed to the thermal regulation device 1 and evacuated therefrom via the collector 6, and more precisely via connection end pieces 30, 32. The collector 6 thus has a common end piece 31 comprising in [Fig. 2] a first connection end piece 30 of the fluid inlet 8 and a second connection end piece 32 of the fluid outlet 10. These connection end pieces 30, 32 are preferably arranged in a extension of the collector 6, respectively in the extension of the fluid inlet 8 and the fluid outlet 10.

[0058] The common end piece 31 is here turned towards a first transverse end 34 of the thermal regulation device 1, which is opposite a second transverse end 36 in the transverse direction T. The term “turned towards a first transverse end 34” means that the common end piece 31 is carried by a portion or a face of the collector 6 in the vicinity of the first transverse end 34, so that a connection of the thermal regulation device 1 to fluid inlets and outlets is made via this first transverse end 34. The first connection end piece 30 and the second connection end piece 32 of the common end piece 31 are in the example illustrated both arranged at the same height, that is to say at the same distance from the first transverse end 34, so as to facilitate the routing and evacuation of the heat transfer fluid.

[0059] When the thermal regulation device 1 is integrated into a thermal regulation system, for example within a housing of a battery module of the motor vehicle comprising a plurality of thermal regulation devices 1 according to the invention, such an arrangement of the connection end pieces 30, 32 of the common end piece 31 makes it possible to connect the collectors 6 of each of the thermal regulation devices 1 to a fluid circuit by means of a distribution manifold, in particular a distribution manifold arranged in the housing of the battery module.

[0060] In certain embodiments as illustrated in [Fig.2], and in [Fig.3], the device 1 comprises a seal 33 arranged between the collector 6 and the common end piece 31. This seal is compressed during the assembly of these so as to create a seal.

[0061] In [Fig.2] the fixing means 35 allowing the assembly and compression of the joint comprise screws.

[0062] Conversely in [Fig.3], the fixing means 35 allowing the assembly and compression of the joint are formed by complementary clips of slots, the two parts being assembled by force, by clipping or by crimping.

[0063] In [Fig.4], the common end piece 31 forms a housing 37 in order to completely encompass the collector 6 and thus electrically isolate it from potential electric arcs, notably coming from the battery cells. Note that the housing is here represented in the form of a square, but may take another form depending on the space constraints of the device.

[0064] [Fig.5] shows the housing formed from a cover 371 and a base 372, assembled by clipping the complementary elements 351, 352, which thus allow pre-assembly before final fixing by the fixing means 35.

[0065] [Fig. 6] shows the collector 6 seen from below, with the collection chamber 62 opening towards the second transverse end of the collector. This opening (additional to that of the fluid outlets 10) is due to manufacturing constraints, in particular machining constraints. It in fact makes it possible to machine the interior of the collector in order to form said collection chamber 62.

[0066] The collector 6 here comprises a second sealing means 330 forming a seal which is configured to be compressed by the base 372 of the common end piece 31 when the latter is connected to the cover 371 of the common end piece 31 in order to achieve sealing.

[0067] Thus, the common end piece advantageously makes it possible to respond to the problems of insulation and sealing of the collector with a single part.

[0068] The present invention may further comprise other features taken alone or in combination:

[0069] The end pieces (30, 32) of the common end piece (31) are arranged in an extension of the collector (6), in the vicinity of the first transverse end (34) of the thermal regulation device (1).

[0070] The collector (6) is brazed onto the tubes (12, 14).

[0071] Each return box (22) fluidically connects the first circulation assembly (26) and the second circulation assembly (28) of a tube (12, 14).

[0072] The collector (6) has a first face for receiving the first tube (12) and a second face for receiving the second tube (14), opposite the first receiving face, the tubes (12, 14) being inserted into the collector (6) at right angles to the receiving faces.

[0073] In certain embodiments as illustrated in [Fig.7], the fluid inlet (8) of the collector (6) comprises a first oblique conduit (56) arranged in the collector (6) and a distribution chamber (58) arranged in an extension of the first circulation assemblies (26), the first oblique conduit (56) opening into the distribution chamber (58), the fluid outlet (10) comprising a second oblique conduit (60) arranged in the collector (6) and a collection chamber (62) arranged in an extension of the second circulation assemblies (28), the second oblique conduit (60) opening into the collection chamber (62).

[0074] In some embodiments, as illustrated in [Fig.8], the first end (18) of the tubes (12, 14) comprises a first folded portion (42) fluidly connected to the first circulation assembly (26) and a second folded portion (44) fluidly connected to the second circulation assembly (28), the folded portions (42, 44) being separated from each other by a notch (46) formed in the tube (12, 14), the folded portions (42, 44) opening into the collector (6).

[0075] The first portion (42) and the second portion (44) of the same tube (12, 14) are folded opposite each other with respect to the longitudinal-transverse plane.

[0076] The first portion (42) of the first tube (12) and the first portion (42) of the second tube (14) are folded on the same side of the thermal regulation device (1), the second portion (44) of the first tube (12) and the second portion (44) of the second tube (14) being folded on another opposite side of the thermal regulation device (1).

[0077] The manifold (6) comprises a first cylinder (38) comprising the fluid inlet (8) and a second cylinder (40) comprising the fluid outlet (10), the cylinders (38, 40) having insertion slots (48) for the folded portions (42, 44).

[0078] A face of the collector (6) in the vicinity of a transverse end (34, 36), of the thermal regulation device (1) comprises the common end piece (here represented 41) connecting the first cylinder (38) and the second cylinder (40).

[0079] The present invention cannot, however, be limited to the means and configurations described and illustrated here and it also extends to any equivalent means and configuration as well as to any technically effective combination of such means.

Claims

1. Claims Thermal regulation device (1) for electrical energy storage members extending mainly in a longitudinal-transverse plane between a first longitudinal end (2) and a second longitudinal end (4), each of these longitudinal ends (2, 4) being equipped with a return box (22), the thermal regulation device (1) comprising a first tube (12), a second tube (14) and a collector (6), each of the tubes (12, 14) having a first end (18) connected to the collector (6) and a second end (20) connected to one of the return boxes (22), the tubes (12, 14) each comprising a plurality of channels (24) configured for the circulation of a heat transfer fluid distributed in at least a first circulation assembly (26) and a second circulation assembly (28) superimposed on each other in a transverse direction (T),the collector (6) comprising a heat transfer fluid inlet (8) and a heat transfer fluid outlet (10), the fluid inlet (8) being arranged on a first side of the longitudinal-transverse plane and the fluid outlet (10) being arranged on a second side, opposite the first, of the longitudinal-transverse plane, the first circulation assembly (26) of each of the tubes (12, 14) opening into the fluid inlet (8) and the second circulation assembly (28) of each of the tubes (12, 14) opening into the fluid outlet (10), the device comprising a first transverse end (34) and a second transverse end (36) opposite the first transverse end (34), and a common connection end piece (31) forming a connection end piece (30) of the fluid inlet (8) and a connection end piece (32) of the fluid outlet (10) of the collector (6), said common end piece (31) being turned towards the first transverse end (34),characterized in that the common end piece (31) is made of plastic, and in that the device comprises a first sealing means (33), for example a seal (33) arranged between the common end piece (31) and the collector (6), as well as at least one means (35) for fixing the common end piece (31) to the collector (6) configured to compress said seal (33) between the common end piece (31) and the collector (6).,

2. Thermal regulation device (1) according to one of the preceding claims, in which the collector comprises a distribution chamber (58) and a collection chamber (62), the fluid inlet (8) of the collector (6) opening into the distribution chamber (58) and the fluid outlet (10) opening into the collection chamber (62), the collector further comprising a partition, in particular a central partition, separating the distribution chamber (58) and the collection chamber (62).

3. Thermal regulation device (1) according to one of the preceding claims, in which the chambers of the collector are open towards the first transverse end (34), the common end piece being connected to said chambers (58, 62) by these openings.

4. Thermal regulation device (1) according to the preceding claim, in which the common end piece (31) encompasses the collector so as to electrically insulate it.

5. Thermal regulation device (1) according to one of the preceding claims, in which the common end piece (31) forms a housing (37) comprising a part forming a cover (371) facing the first transverse end (34), and a part forming a base (372) facing the second transverse end (36), the two parts (371, 372) being connected in particular in a removable manner, for example by clipping complementary elements (351, 352).

6. Thermal regulation device (1) according to the preceding claim, in which the base (372) comprises at least one means (35) for fixing the common end piece (31) to the collector (6).

7. Thermal regulation device (1) according to claim 5, in which the cover (371) and the base (372) each comprise means (35) for fixing the common end piece (31) to the collector (6).

8. Thermal regulation device (1) according to one of claims 5 to 7, wherein at least one of the chambers (58, 62) of the collector (6) is open towards the second transverse end (36), the base (372) being configured to close the at least one chamber when said base (372) is connected to the cover (371) of the common end piece (31).

9. Thermal regulation device (1) according to one of claims 5 to 8, in which it further comprises a second sealing means (330) between the base (371) and the collector (6), the base (372) being configured to compress this second means sealing (330) when connected to the cover (371) of the common end piece (31).

10. Thermal regulation system for a motor vehicle, comprising a plurality of thermal regulation devices (1) according to any one of the preceding claims and a plurality of electrical energy storage members, the thermal regulation devices (1) being arranged along the electrical energy storage members, the thermal regulation system comprising a distribution manifold connected to the collectors (6) of the thermal regulation devices (1).

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