Collector box and thermal management system incorporating such a collector box

Abstract

The invention relates to a fluid collection box (100) for connecting to tubes (20), comprising a collection manifold (500A) and a connecting member (300A) having adapters (200A), the collection manifold comprising a column (520A) provided along a longitudinal axis with a plurality of connectors (600A) spaced apart from each other, each connector delimiting a fluid flow passage having a free end which delimits a fluid flow orifice (650A), the connectors and the adapters are suitable for receiving each other, and the collection box (100) comprising sealing rings (400A), each ring is disposed between one of the connectors and one of the adapters.The connecting element comprises: a first position, in which the adapters are suitable for receiving tubes so that each tube passes through one of the rings of the connecting element; a second position, in which the sealing rings are able to be compressed. Abbreviated figure: Fig. 9.

Description

Title of the invention: Collection box and thermal management system comprising such a collection box Technical field of the invention

[0001] The present invention relates to a fluid collection box for connecting to tubes, particularly microchannel tubes. The present invention also relates to a thermal management system comprising such a collection box and a battery pack having such a collection box. Previous technique

[0002] In particular, in the field of electric and / or hybrid vehicles, electrical energy is supplied by batteries that heat up during operation. Cooling the batteries is essential to prevent damage from excessive temperatures. Generally, thermal regulation is achieved by means of a heat transfer fluid circulating in a cooling system. Cooling systems comprising tubes and connectors used for this purpose are known from the prior art. However, these systems have drawbacks; for example, the tubes are joined to the connectors by brazing, the assembly of the tubes and connectors appears laborious, or the structure is complicated to provide a good and reliable seal within the connector.

[0003] French patent document FR 3081545 describes a battery cooler device in which various elements (collector, boxes, and tubes) are mechanically joined together to prevent defects and mixing stresses. The invention also relates to a method for assembling a cooler, but the method comprises numerous steps and lacks efficiency for assembly and mass production. Description of the invention

[0004] The present invention aims to overcome these drawbacks by providing a collection box that allows for simplified assembly with reduced assembly force and a simple structure, while ensuring the required sealing and mechanical retention of the components. The present invention also relates to a collection box and tube assembly. The present invention further relates to a thermal management system comprising at least one collection box according to the present invention. The present invention also relates to a battery pack comprising at least one collection box according to the present invention.

[0005] To this end, the present invention relates to a fluid collection box for connecting to tubes,

[0006] The collector box comprises a collector rail and a connecting member having adapters, the collector rail comprising a column provided along a longitudinal axis with a plurality of connectors spaced apart from each other, each connector delimiting a fluid flow passage having a free end which delimits a fluid flow orifice, the connectors and the adapters are suitable for receiving each other, and the collector box comprising a plurality of sealing rings, each sealing ring is disposed between one of the connectors and one of the adapters.

[0007] According to one aspect of the invention, the collector box has the following characteristics: the connecting member comprises:

[0008] - a first position, called the assembly position, in which the adapters are suitable for receiving tubes so that each tube passes through one of the sealing rings,

[0009] - a second position, called the working position, in which the sealing rings are likely to be compressed and / or deformed between the collector ramp (500A) and the connecting element.

[0010] In addition, the connecting member moves from the first position to the second position with a relative translational displacement between the collecting ramp and the connecting member.

[0011] Advantageously, the connector has a simple structure and provides good and reliable sealing.

[0012] Advantageously, the connecting member performs the function of indexing, shaping, and guiding the tubes. This allows for assembly between the connecting member and the collector ramp by a simple relative movement between these two elements.

[0013] Even more advantageously, the connecting member can be configured so as to have clipping between the connecting member and the collector ramp.

[0014] In one embodiment, in the second position, the collecting ramp and the connecting member cooperate so that the sealing rings are sandwiched between the adapters and the connectors.

[0015] In one embodiment, at least one sealing ring is a sealing ring.

[0016] Advantageously, this ensures a seal.

[0017] In one embodiment, the collector box includes visual control means for checking the state of assembly between a collector ramp and a connecting member.

[0018] Advantageously, this ensures a good assembly. In one embodiment, the connecting member is retained to the collector ramp in the first position and / or in the second position by mechanical fastening means.

[0019] Advantageously, this allows for simple assembly without the need for any special tools or processes.

[0020] In one embodiment, the connecting member is retained to the collector ramp in the first position and / or in the second position by a snap-fit ​​connection.

[0021] Advantageously, this allows for a clipping sensation during assembly and simple disassembly.

[0022] In one embodiment, at least one sealing ring comprises at least two retaining lips on its inner surface.

[0023] Advantageously, this allows for better sealing and / or better mechanical gripping between the sealing ring and the tube.

[0024] In one embodiment, in the working position, a connector and a sealing ring, constituting a male interface, are received in an adapter which constitutes a female interface.

[0025] In one embodiment, the connector and the sealing ring are overmolded.

[0026] Advantageously, this allows the shape of the sealing ring to be maintained before the tube is inserted, and thus prevents it from being damaged by the tube.

[0027] In one embodiment, the female connector, the male interface characterized in that, in the working position, an adapter and a sealing ring, constituting a male interface, are received in a connector which constitutes a female interface.

[0028] In one embodiment, the adapter and the sealing ring are overmolded.

[0029] Advantageously, this allows the shape of the sealing ring to be maintained before the tube is inserted, and thus prevents it from being damaged by the tube.

[0030] In one embodiment, the connecting member comprises a plurality of pairs of adapters, each pair of adapters being linked by an intermediate zone.

[0031] According to a second aspect of the invention, the assembly of a collection box according to the present invention and at least one tube received in the connecting member.

[0032] In one embodiment, the tube is a micro-channel tube comprising at least one flat surface.

[0033] In one embodiment, the tube is a micro-channel tube comprising at least one corrugated surface.

[0034] Advantageously, the connector and tube assembly is suitable for cooling or heating objects having a variety of surfaces.

[0035] According to a third aspect of the invention, the thermal management system comprising at least one collection box according to the present invention.

[0036] According to a fourth aspect of the invention, the battery pack comprising at least one collection box according to the present invention.

[0037] According to a fourth aspect of the invention, the present invention relates to a process assembly of a collection box according to the present invention and tubes. The method comprises the following steps:

[0038] a), the connecting member having adapters is positioned vis-à-vis the tubes, of so that each tube is received by one of the adapters and that each tube passes through one of the sealing rings;

[0039] b), a relative movement in translation is carried out between the collector ramp and the connecting element, so that the connectors and adapters are received by each other and the sealing rings are compressed between the collector ramp and the connecting element.

[0040] Advantageously, the assembly process is simple and efficient.

[0041] In one embodiment, the tubes are pre-positioned.

[0042] In one embodiment, the connecting member is retained to the collector ramp by mechanical fastening means in step b). Brief description of the figures

[0043] Other advantages, purposes and features of the present invention will become apparent from the following description, given for explanatory purposes and in no way as a limitation, with reference to the accompanying drawings, in which:

[0044] Fig. 1 represents a perspective view of a group of batteries whose thermal management tubes are joined to the connectors by brazing;

[0045] [Fig.2] represents an exploded view of a group of batteries whose thermal management tubes are connected by collector boxes according to a first embodiment of the present invention;

[0046] [Fig.3] represents a cross-sectional view of a collection box according to a first embodiment of the present invention;

[0047] Figure 4 shows a perspective view of a group of batteries whose thermal management tubes are connected by collector boxes.

[0048] according to a second embodiment of the present invention;

[0049] [Fig.5] represents a perspective view of a collection box according to a second embodiment of the present invention;

[0050] [Fig.5A] represents a perspective view of a collection box connected to the tubes according to a second embodiment of the present invention; [Fig.6] represents a partial view of a collection box according to a second embodiment of the present invention;

[0051] [Fig.7] represents a cross-sectional view of a collection box according to a second embodiment of the present invention;

[0052] [Fig.8] represents a top view of a collection box according to a second embodiment of the present invention;

[0053] [Fig.9] represents an exploded view of a collection box connected to the tubes according to a second embodiment of the present invention;

[0054] Figure 10 shows a perspective view of a group of batteries whose thermal management tubes are connected by collector boxes.

[0055] according to a second embodiment of the present invention;

[0056] Figure 11 represents a perspective view of a group of batteries whose thermal management tubes are connected by collector boxes

[0057] according to a second embodiment of the present invention;

[0058] [Fig.12] represents a perspective view of a group of batteries whose thermal management tubes are connected by collection boxes placed in a module and / or battery pack according to a second embodiment of the present invention;

[0059] [Fig. 13] represents a partial cross-sectional view of a group of batteries from [Fig. 12], Description of embodiments

[0060] The different figures, as well as the elements of the same figure, are not necessarily represented at the same scale. Across all the figures, identical elements bear the same numerical reference.

[0061] The terminology used in this description should in no way be interpreted in a limiting or restrictive manner, simply because it is used in conjunction with a detailed description of certain embodiments of the invention.

[0062] Fig. 1 shows a perspective view of a group of cylindrical cells 30 whose thermal management tubes 25 are attached to the connectors 15 known from the prior art, for example, in patent document US2021 / 0159567 or US2013 / 0196184). In fact, the tubes and the connectors are joined by brazing.

[0063] Figure 2 shows an exploded view of a group of cylindrical cells whose thermal management tubes 20 are connected by collector boxes.

[0064] 100 according to a first embodiment of the present invention.

[0065] This collector box 100 is, for example, intended to be mounted on a network of pipes circulating a fluid from a battery pack. The fluid may be a heat transfer fluid. As shown, this network has a row of longitudinally extending tube ends to which the collector box 100 can be mounted.

[0066] The collector box 100 according to the present invention comprises a collector ramp 500A and a connecting element 300A. The collector ramp 500A includes a column 520A provided along a longitudinal axis with a plurality of spaced connectors 600A from each other. The 300A connecting element includes 200A adapters. In this example, the 200A adapters are equipped with openings suitable for receiving 600A connectors.

[0067] According to the invention, each 600A connector delimits a fluid flow passage having a free end which delimits a 650A fluid flow orifice.

[0068] According to the invention, the collector box 100 comprises a plurality of 400A sealing rings to advantageously ensure sealing. In fact, each 400A sealing ring is arranged between a 600A connector and a 200A adapter.

[0069] In this first embodiment, the 200A adapters each have another opening and are suitable for receiving tubes through this opening so that each tube passes through one of the 400A sealing rings, when the 600A connectors are received in the 200A adapters.

[0070] In one embodiment, the sealing rings 400A are advantageously arranged so that they are not cut by the tubes 20 when they receive the latter.

[0071] The 500A collector rail and the 300A connecting member cooperate so that the sealing rings are sandwiched between the 200A adapters and the 600A connectors. Here, the rail is referred to as being in a second position.

[0072] When the connector is in a second position, called the working position, the 400A sealing rings are likely to be compressed and / or deformed between the 500A collector ramp and the 300A connecting member.

[0073] According to the invention, the connecting member 300A moves from the first position to the second position with a relative translational displacement between the collecting rail 500A and the connecting member 300A. For example, the collecting rail 500A is pushed towards the connecting member 300A, whose 200A adapters already receive the 600A connectors of the rail. Each tube 20 received by a 200A adapter passes through one of the 400A sealing rings.

[0074] Advantageously, the 500A collector ramp is removably mounted to the 300A connecting member.

[0075] In this embodiment, the connecting member comprises a plurality of pairs of adapters, each pair of adapters being linked by an intermediate zone 202A. Advantageously, this intermediate zone 202A makes contact with a cylindrical cell and absorbs, for example, its vibration, thus reducing the impact on the connection between the tube 20 and the adapter 200A. This intermediate zone may be in the form of a half-cylinder for a cylindrical cell or rectangular for a prismatic cell.

[0076] In one embodiment, the intermediate zone 202A comprises means allowing it to be fixed to a support and / or to serve as a support for a clip and / or securing device.

[0077] Advantageously, the contact surface between the connecting member 300A and the collector ramp allows the assembly condition of the collector box 500A to be checked.

[0078] More generally, the collector manifold 500A includes a fluid flow passage 540A communicating with all the connectors 600A. Thus the tubes 20 and the collector box 100 form a fluid circulation network that is part of a thermal management system.

[0079] Fig. 3 represents a partial cross-sectional view of a collection box 100 according to a first embodiment of the present invention.

[0080] It is observed that a 600A connector is received in a 200A adapter with a 400A sealing ring sandwiched between the 200A adapter and the 600A connector.

[0081] Advantageously, the 400A sealing ring is a sealing ring. It ensures the sealing of the connection.

[0082] In a preferred embodiment, a 600A connector is attached to a 400A sealing ring. This is particularly advantageous because it allows the 400A sealing ring to be placed in the 200A adapter while retaining its shape.

[0083] In a particularly preferred embodiment, the 600A connector and the 400A sealing ring are overmolded.

[0084] Since connector 600A communicates with the fluid flow passage 540A, the fluid flowing in tube 20 thus enters the flow passage of the collector manifold 500A.

[0085] In the example described, the 600A connector received in the 200A adapter is in the second position.

[0086] In an embodiment not shown, the sealing ring 400A is provided with two retaining lips on its inner surface. This allows for better sealing and / or better mechanical grip with respect to the tube 20.

[0087] In one embodiment, in the second position, the compressed and / or deformed sealing ring between the 600A connector and the 200A adapter interferes with an internal wall of the 200A adapter constituting a housing which receives the sealing ring.

[0088] Advantageously, this makes it possible to reinforce the sealing achieved.

[0089] In a preferred embodiment (not illustrated), the sealing ring 400A does not come into contact with the tube 20 in this first position. Advantageously, this prevents damage to the sealing ring 400A from the tube 20 during its insertion.

[0090] Fig. 4 shows a perspective view of a group of cylindrical cells comprising a thermal management system of Fig. 2.

[0091] In the example described, the group of cylindrical cells is enclosed in a box and each 600A connector received in a 200A adapter is in the working position.

[0092] Fig. 5 shows a perspective view of a collection box 100 according to a second embodiment of the present invention.

[0093] According to this second embodiment, this collector box 100 is for example intended to be mounted on a network of circulation pipes for a fluid from a battery pack.

[0094] According to this second embodiment, the collector box 100 of the present invention comprises a 500A collector rail and a 300A connecting element. The 500A collector rail includes a 520A column provided along a longitudinal axis with a plurality of 600A connectors spaced apart. The 300A connecting element includes 200A adapters. In this example, the 600A connectors are suitable for receiving the 200A adapters.

[0095] According to the invention, each 600A connector defines a fluid flow passage having a free end which defines an orifice 650A. Advantageously, a 200A adapter is received in the 600A connector through its orifice 650A.

[0096] According to the invention, the collector box 100 comprises a plurality of 400A sealing rings to advantageously ensure sealing. In fact, each 400A sealing ring is arranged between a 600A connector and a 200A adapter.

[0097] In this first embodiment, the 200A adapters each have a through hole and are suitable for receiving tubes through this through hole so that each tube passes through one of the 400A sealing rings, when the 200A adapters are received in the 600A connectors.

[0098] The 500A collector rail and the 300A connecting member cooperate so that the sealing rings are sandwiched between the 200A adapters and the 600A connectors. Here, the rail is referred to as being in a second position.

[0099] When the connector is in a second position, called the working position, the 400A sealing rings are likely to be compressed and / or deformed between the 500A collector ramp and the 300A connecting member.

[0100] According to the invention, the connecting member 300A moves from the first position to the second position with a relative translational displacement between the collecting rail 500A and the connecting member 300A. For example, the collecting rail 500A is pushed towards the connecting member 300A, whose 200A adapters are already received in the 600A connectors of the rail. Each tube 20 received by a 200A adapter passes through one of the 400A sealing rings.

[0101] Advantageously, the 500A collector ramp is removably mounted at the 300A connecting element.

[0102] In this embodiment, the connecting element comprises a plurality of pairs of adapters. This will be detailed later.

[0103] More generally, the collector manifold 500A includes a fluid flow passage 540A communicating with all the connectors 600A. Thus the tubes 20 and the collector 100 form a fluid circulation network that is part of a thermal management system.

[0104] According to a preferred embodiment, the tubes 20 are first mounted in the 200A adapters of the 300A collector. Then, the 300A connector is assembled with the 500A collector ramp.

[0105] Figure 5A shows a perspective view of a collection box connected to the tubes according to a second embodiment. In this example, the tubes are microchannel tubes having at least one flat surface that adapts to the prismatic cells.

[0106] Figure 6 shows a partial view of a collection box according to a second embodiment of the present invention.

[0107] Each pair of adapters is linked by an intermediate zone 202A. Advantageously, this intermediate zone 202A makes contact with a cylindrical cell and absorbs, for example, its vibration and reduces the impact on the connection between the tube 20 and the adapter 200A.

[0108] Fig. 7 shows a cross-sectional view of a collection box 100 according to a second embodiment of the present invention;

[0109] It is observed that a 200A adapter is received in a 600A connector with a 400A sealing ring sandwiched between the 200A adapter and the 600A connector.

[0110] Advantageously, the 400A sealing ring is a sealing ring. It ensures the sealing of the connection.

[0111] In a preferred embodiment, a 200A adapter is attached to a 400A sealing ring. This is particularly advantageous because it allows the 400A sealing ring to be placed in the 200A connector while retaining its shape.

[0112] In a particularly preferred embodiment, the 200A adapter and the 400A sealing ring are overmolded.

[0113] In an embodiment not shown, the sealing ring 400A is provided with two retaining lips on its inner surface. This provides improved sealing and / or mechanical grip with respect to the tube 20.

[0114] In one embodiment, in the second position, the compressed and / or deformed sealing ring between the 600A connector and the 200A adapter interferes with an internal wall of the 600A connector constituting a housing which receives the sealing ring.

[0115] Advantageously, this makes it possible to reinforce the sealing achieved.

[0116] In a preferred embodiment (not illustrated), the sealing ring 400A does not come into contact with the tube 20 in this first position. Advantageously, this prevents damage to the sealing ring 400A from the tube 20 during its insertion.

[0117] Fig. 8 shows a partial top view of a collector box 100 according to a second embodiment.

[0118] According to the invention, the 300A connecting member is retained to the 500A collector ramp in the first position and / or in the second position by mechanical fastening means.

[0119] In this second embodiment, the mechanical fastening means are a snap-fit ​​connection. As illustrated in [Fig. 8], the connecting member 300A and the collector rail 500A fit together by elastic interlocking. For this purpose, the connecting member 300A has two tabs that cooperate with the undercuts of the collector rail 500A.

[0120] Advantageously, the fact that the 300A connecting member enters its second position gives the operator a clipping sensation.

[0121] Advantageously, the collector box 100 includes visual inspection means for verifying the assembly status between the connector 200A and the collector column 500A, for example, an inspection window (not shown). By way of example, different colors can be observed through the inspection window.

[0122] Another example of visual control means is the contact surface between the 300A linking member and the collector ramp, which allows verification of the assembly condition of the 500A collector box.

[0123] Fig. 9 shows an exploded view of two collector boxes 100 whose connectors are mounted on the tubes 20 of a thermal management system.

[0124] The tubes 20 are arranged at an interval corresponding to the distance between two adjacent 200A adapters. Each 200A adapter overmolded with a 400A sealing ring is mounted on both ends of each tube 20.

[0125] Next, the two 500A collector ramps are installed on the two ends of the tubes 20, pushing the 500A collector ramps towards the 300A collectors whose adapters are aligned with the 600A connectors, as illustrated in [Fig. 10].

[0126] In an advantageous embodiment, each collecting ramp 500A has an orifice 550A serving as an outlet / inlet of fluid in the circulation network.

[0127] In the illustrated example, the tubes are microchannel tubes having at least one corrugated surface. The cylindrical cells are then mounted in the space separating the tubes 20.

[0128] In an embodiment illustrated in [Fig. 5A], the tubes are micro-tubes channels having at least one flat surface to better adapt for example to flat surfaces to be cooled and / or heated, by those of prismatic cells.

[0129] The entire battery group illustrated in [Fig. 10] is then placed in a box with two openings, as in [Fig. 11].

[0130] The two 550A ports act as fluid inlet / outlet in the thermal management system, as illustrated in [Fig. 12]. The illustrated assembly constitutes a battery pack 40 comprising collection boxes 100 according to the present invention.

[0131] Figure 13 shows a partial cross-sectional view along one axis of the 550A orifice of a battery group in Figure 12.

[0132] More generally for the present invention, the 400A sealing ring is advantageously made of elastomeric material in a preferred embodiment.

[0133] In its compressed state, the sealing ring 400A comes into contact with the surface of the tube 20, thus ensuring a seal between the tube and the sealing ring. Advantageously, the sealing ring 400A, compressed by the adapter 200 A and / or the connector 600A, provides a mechanical grip on the tube, which is retained in the collection box despite the fluid pressure.

[0134] Advantageously, the 400A sealing ring is made of a suitable material which allows it to withstand the pressure difference of the fluid.

[0135] In compressed state, the sealing rings sandwiched between the 200A adapters and the 600A connectors ensure the seal between the tubes 20, the 200A adapters and the 600A connectors.

[0136] To assemble a collection box 100 according to the present invention and tubes 20, the following steps may be followed:

[0137] a), the connecting element (300A) having adapters (200A) is positioned opposite tubes (20), so that each tube (20) is received by one of the adapters (200A) and that each tube (20) passes through one of the sealing rings (400A);

[0138] b), a relative displacement in translation is carried out between the collector ramp (500A) and the connecting element (300A), so that the connectors and adapters are received by each other and the sealing rings (400A) are compressed between the collector ramp (500A) and the connecting element (300A).

[0139] In one embodiment, the tubes 20 are pre-positioned, for example on a support in the thermal management system.

[0140] In one embodiment, the 300A connecting member is retained to the 500A collector rail by mechanical fastening means in step b). List of reference signs

[0141] [Tables 1] References Designations 20 Tube 30 Battery 100 Collection box 200A Adapter 202A Intermediate zone 300A Connecting element 400A Sealing ring 500A Collection rail 520A Column 540A Fluid flow passage 550A Orifice 600A Connector 650A Fluid flow orifice

Claims

Demands

1. A fluid collection box (100) for connection to tubes (20), comprising a collection manifold (500A) and a connecting member (300A) having adapters (200A), the collection manifold (500A) comprising a column (520A) provided along a longitudinal axis with a plurality of connectors (600A) spaced apart, each connector (600A) defining a fluid flow passage having a free end that defines a fluid flow orifice (650A), the connectors and adapters being compatible with each other, and the collection box (100) comprising a plurality of sealing rings (400A), each sealing ring (400A) being disposed between one of the connectors (600A) and one of the adapters (200A), characterized in that the connecting member (300A) includes: a first position, called the assembly position,in which the adapters (200A) are suitable for receiving tubes such that each tube passes through one of the sealing rings (400A) of the connecting member, a second position, called the working position, in which the sealing rings (400A) are capable of being compressed between the collector ramp (500A) and the connecting member (300A), and in that the connecting member (300A) moves from the first position to the second position with a relative translational displacement between the collector ramp (500A) and the connecting member (300A), and the sealing rings (400A) are arranged so that they are not cut by the tubes (20) when receiving the tubes.

2. Collector box (100) according to claim 1, wherein, in the second position, the collector ramp (500A) and the connecting member (300A) cooperate so that the sealing rings are sandwiched between the adapters (200A) and the connectors (600A)

3. Collection box (100) according to any one of the preceding claims, wherein at least one sealing ring (400A) is a sealing ring.

4. Collector box (100) according to any one of the preceding claims, characterized in that it comprises visual control means for checking the state of assembly between a collector ramp (500A) and a connecting member (300A).

5. Collection box (100) according to any one of the preceding claims, the connecting element (300A) is retained to the collector ramp (500A) in the first position and / or in the second position by mechanical fastening means.

6. Collector box (100) according to any one of the preceding claims, the linking member (300A) is retained to the collector ramp (500A) in the first position and / or in the second position by a snap-fit ​​connection.

7. Collector box (100) according to any one of the preceding claims, at least one sealing ring (400A) comprises at least two retaining lips on its inner surface.

8. Collection box (100) according to any one of the preceding claims, characterized in that, in the working position, a connector (600A) and a sealing ring (400A), constituting a male interface, are received in an adapter (200A) which constitutes a female interface.

9. Collection box (100) according to claim 8, wherein the connector (600A) and the sealing ring (400A) are overmolded.

10. Collection box (100) according to any one of the preceding claims, wherein the female connector, the male interface characterized in that, in the working position, an adapter (200A) and a sealing ring (400A), constituting a male interface, are received in a connector (600A) which constitutes a female interface.

11. Collection box (100) according to claim 10, wherein the adapter (200A) and the sealing ring (400A) are overmolded.

12. Collection box (100) according to any one of the preceding claims, wherein the connecting member comprises a plurality of pairs of adapters, each pair of adapters being linked by an intermediate zone (202A).

13. Assembly of a collector box (100) according to one of the preceding claims and at least one tube received in the adapter (200A) of the connecting member.

14. Thermal management system comprising at least one collection box (100) according to any one of claims 1 to 11.

15. Battery pack comprising at least one collection box (100) according to any one of claims 1 to 11.

16. A method for assembling a collector box according to any one of claims 1 to 12 and tubes (20), comprising the following steps: a) the connecting member (300A) having adapters (200A) is positioned vis-à-vis the tubes (20), so that each tube (20) is received by a adapters (200A) and that each tube (20) passes through one of the sealing rings (400A); b), a relative translational displacement is made between the collecting ramp (500A) and the connecting member (300A), so that the connectors and adapters are received by each other and the sealing rings (400A) are compressed between the collecting ramp (500A) and the connecting member (300A).

17. Assembly method according to claim 16, wherein the tubes (20) are pre-positioned.

18. Assembly method according to claim 16 or 17, the connecting member (300A) is retained to the collector ramp (500A) by mechanical fastening means in step b).

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