Sealing connector for cooling plate

By designing a sealing connector with a flexible inner sleeve and a movable outer shell, the sealing problem caused by inaccurate installation of the cooling plate is solved, ensuring the sealing and stability of the electric vehicle cooling system under misalignment conditions and adapting to high-pressure conditions.

CN121794516APending Publication Date: 2026-04-03WELDON LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-05
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing cooling systems, the connectors of the cooling plates cannot maintain optimal sealing when installed incorrectly or misaligned, leading to coolant leakage and affecting system efficiency and safety, which is particularly prominent in electric vehicles.

Method used

A sealed connector comprising an inner sleeve and a movable outer shell enclosing it is designed. The inner sleeve is made of rubber or silicone rubber, and the outer shell is made of plastic. It has a flexible structure that can compensate for axial discrepancies, ensuring sealing and stability.

Benefits of technology

Even if the cooling plate is not installed accurately or is misaligned, it can still maintain a tight seal, adapt to high pressure conditions, prevent coolant leakage, and improve the structural integrity and operating efficiency of the system.

✦ Generated by Eureka AI based on patent content.

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Abstract

A sealed connector (100) for two cooling plates (200, 300) of a cooling system (S) for at least one electrical / electronic component (B) comprises an inner sleeve (1) and a housing (2). The inner sleeve (1) is of a tubular structure and defines a channel (10) configured to convey cooling liquid between the first opening (11) and the second opening (12). The housing has at least two outer shells (3, 4, 5) having a tubular structure, arranged in series along a longitudinal axis (Y), each of the two outer shells externally wrapping a length of the longitudinal portion of the inner sleeve. The housing defines a complete and articulatable outer envelope of the sealed connector and externally wraps the inner sleeve over the entire longitudinal extension of the inner sleeve.
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Description

Technical Field

[0001] The object of this invention is a sealing connector for a cooling plate. Specifically, the sealing connector of this invention is a sealing connector for a cooling plate in a cooling system for at least one electrical / electronic component. More specifically, the object of this invention is particularly suitable for sealing a cooling plate in a battery cooling system, where the battery is an electrically driven device, preferably an electric vehicle.

[0002] Another object of the present invention is to provide a cooling system comprising at least one electrical / electronic component, the system including the sealed connector.

[0003] Furthermore, the present invention also relates to a method for manufacturing the sealed connector. Background Technology

[0004] In the electronics field, controlling the temperature of electrical / electronic components is crucial to ensuring efficient equipment operation and maintaining certain safety standards set by national and international regulations. It is well known that almost all electrical / electronic components have a temperature range within which the component itself can operate correctly and safely. Exceeding this range exposes the component and the entire system it is installed in to the risk of failure, which may result in electrical hazards or other dangers (such as fire, explosion, etc.).

[0005] Especially when batteries power devices, systems, and / or vehicles, maintaining battery temperature plays a crucial role in ensuring high efficiency and satisfactory range. Overheating must be prevented, as excessively high temperatures can damage the battery's structure and / or chemical composition, potentially causing irreversible harm to its operation, in addition to issues with efficiency and range.

[0006] In electric vehicles, the batteries that provide power are assembled into battery packs, typically consisting of multiple cells, and placed in appropriate cavities within the vehicle body. In hot weather, the temperature of these cavities can rise to a level that hinders their operation. Any runaway increase in the temperature of the battery pack can trigger what is known as "thermal runaway," where the temperature of the battery cells rises rapidly, accompanied by the release of flammable gases. These gases, upon contact with the hot battery, can ignite a fire.

[0007] To avoid the aforementioned issues, electric vehicles are equipped with a cooling system that exchanges heat with the battery pack. Specifically, the cooling system absorbs heat from the battery and cools it to maintain it within a specific optimal operating temperature range, thus ensuring high efficiency and durability. For example, the optimal operating range for lithium-ion batteries is 15°C to 40°C.

[0008] Typically, a cooling system is configured as a cooling loop in which a coolant circulates to complete a thermal cycle, absorbing heat from the battery and subsequently transferring it to the outside at other locations in the cooling loop, typically including at least one of a compressor, evaporator, radiator, and / or expander. The fluid circulating in the cooling loop can be, for example, a solution of water and ethylene glycol.

[0009] Cooling plate structures are particularly favored in various types of cooling systems. These systems consist of multiple cooling plates positioned between battery cells, with coolant circulating within them to maintain the temperature of each cell within its optimal operating range. The cooling plates can be planar or curved in at least some areas, depending on the structure of the battery they are paired with. In one embodiment, when individual cells are so-called prismatic, the cooling plate is generally planar. In another embodiment, when individual cells are cylindrical, the cooling plate is curved in some areas to maximize heat transfer area. Regardless of the cell and cooling plate shapes, this temperature control scheme is called "indirect cooling." In practice, the coolant does not directly contact the battery cells in the cooling plate circuit: heat exchange actually occurs through the walls of the cooling plate.

[0010] To form a complete cooling circuit, the cooling plates are interconnected and fluidly connected so that coolant can flow through them. In this regard, each cooling plate is provided with at least one inlet connector and one outlet connector, which are usually located on the part of the cooling plate that extends from the battery pack during use, i.e., the part where no heat exchange occurs between the cooling plate and the battery cell.

[0011] To facilitate coolant exchange, the cooling plates are interconnected via appropriate connectors. These connectors are short conduit segments that connect the outlet connector of one cooling plate to the inlet connector of the adjacent cooling plate. In effect, the connectors form connecting elements that create fluid communication between two adjacent cooling plates, thereby allowing coolant transfer.

[0012] In a cooling system, a fundamental function of the connector is to maintain a seal at the inlet and outlet joints of the cooling plate it connects to. In fact, if the seal is not maintained, coolant may leak at the inlet / outlet joint walls of the cooling plate, thus compromising the efficiency of the entire system. Furthermore, leaked coolant may come into contact with other components of the vehicle, including the battery pack, causing corrosion and / or damage to these components, thereby affecting their functionality.

[0013] Furthermore, it should be noted that cooling circuits operate under pressure. For example, in the cooling circuits of electric vehicles, pressure levels can range from 3 bar (300 kPa) to 6 bar (600 kPa). Therefore, maintaining a tight seal at the cooling plate joints is crucial for the proper functioning of the entire cooling system.

[0014] The applicant noted that known cooling systems perform well under ideal positioning conditions, i.e., when system components are in their nominal design positions. In particular, the cooling system performs optimally when the cooling plates are perfectly aligned. In this case, the inlet and outlet connectors are aligned along the same axis, and connection via known sealed connectors is both simple and effective.

[0015] However, due to space constraints and / or inherent inaccuracies during installation, components of the cooling system are often installed in locations deviating from their nominal design positions. In particular, the applicant has demonstrated that the cooling plates are not typically perfectly aligned, and therefore the relevant joints requiring connection are not located on the same axis.

[0016] In this situation, the applicant discovered several phenomena that could compromise the structural integrity of the entire system. Specifically, the components exhibiting the greatest vulnerability were the aforementioned connectors, which failed to maintain a seal at the cooling plate joint. This problem is particularly pronounced in the electric vehicle sector, as electric vehicles are constantly subjected to the power generated by the electric motor and the acceleration caused by uneven road surfaces.

[0017] In reality, the cooling plates may deviate significantly from their nominal positions, causing misalignment and subjecting the connectors sandwiched between them to mechanical stress, thereby impairing their functionality and / or structural integrity.

[0018] Therefore, the applicant points out that in the field of cooling systems, especially in the cooling systems of electric vehicles, there is an urgent need for a connector that can maintain optimal sealing with the cooling plate joint even when the cooling plate is misaligned. Summary of the Invention

[0019] Therefore, the overall objective of this invention is to overcome the defects and / or limitations of at least one prior art solution.

[0020] One object of the present invention is to provide a sealed connector for a cooling plate in a cooling system that exhibits optimal performance even when the cooling plate is not installed accurately.

[0021] Another object of the present invention is to provide a sealing connector that can compensate for misalignment between two cooling plates without affecting the sealing performance of the relevant inlet and / or outlet joints.

[0022] A further object of the present invention is to provide a sealing connector for a cooling plate with a particularly robust structure, even under excessive pressure (over 800 kPa).

[0023] Another object of the present invention is to provide a sealing connector for a cooling plate that maintains a seal under both pressure and vacuum conditions.

[0024] Another object of the present invention is to provide a sealing connector for a cooling plate with a simple, reasonable and tribologically efficient structure.

[0025] A further object of the present invention is to describe a sealing connector for a cost-competitive cooling plate.

[0026] Another object of the present invention is to provide a sealing connector for a cooling plate that is easy to install intuitively.

[0027] Another object of the present invention is to describe a cooling system comprising at least one electrical / electronic component, the system including the aforementioned sealed connector device. In particular, an object of the present invention is to provide a cooling system comprising at least one electrical / electronic component that has a particularly robust structure even in cases of inaccurate cooling plate mounting.

[0028] A further object of the present invention is to provide a cooling system comprising at least one electrical / electronic component, wherein the components are kept sealed even when they are in non-nominal positions.

[0029] Another object of the present invention is to provide a method for manufacturing a sealed connector, the implementation of which is more simplified.

[0030] One or more of the above objectives can be substantially achieved through the appended claims and / or the following aspects: a sealed connector for a cooling plate, a cooling system comprising at least one electrical / electronic component (which includes the sealed connector), and a method of manufacturing the sealed connector.

[0031] One or more of the above objectives are substantially achieved by a sealed connector for a cooling plate, a cooling system for at least one electrical / electronic component including the sealed connector, and a method of manufacturing the sealed connector in accordance with the appended claims and / or the aspects described below.

[0032] According to a first aspect, the present invention relates to a sealed connector for two cooling plates. More specifically, the present invention relates to a sealed connector for two cooling plates of a cooling system for at least one electrical / electronic component. Preferably, the at least one electrical / electronic component includes at least one battery. More preferably, the at least one battery is configured to power an electric vehicle.

[0033] In one aspect, the sealing connector includes an inner sleeve with a generally tubular structure about a longitudinal axis. According to this aspect, the inner sleeve defines a channel extending along the longitudinal axis between a first opening and a second opening. Specifically, the channel is configured for the transfer of coolant between the first opening and the second opening.

[0034] In one aspect, the sealing connector includes a housing that encloses an inner sleeve, comprising at least two independent and movable outer shells. Specifically, the at least two outer shells are arranged in series along a longitudinal axis. According to this aspect, each outer shell is configured to enclose a longitudinal portion of the inner sleeve from the outside.

[0035] In this specification, the term "in series" means that the at least two housings are arranged sequentially, i.e., side by side, without necessarily implying any form of constraint or contact between adjacent housings. In other words, the term "in series" means that the at least two housings are arranged in an orderly manner along the main direction of the housing's development, but does not imply any constraint or physical connection between adjacent housings, except for indirect connection via inner sleeves. Therefore, in this specification, "in series" is synonymous with "arranged in sequence" and "side by side along a direction."

[0036] In one aspect, the housing defines a complete and articulated external envelope structure for the sealed connector, enveloping the inner sleeve from the outside along the longitudinal axis throughout the entire longitudinal extension of the inner sleeve.

[0037] It should be noted that in this specification, terms such as “inner,” “internal,” “inward,” and “outer,” “external,” and “outward” all refer to the radial direction relative to the longitudinal axis, that is, the direction located in a plane perpendicular to the longitudinal axis and moving away from or towards the longitudinal axis.

[0038] In one aspect, the inner sleeve is made of a rubber-like material. Preferably, the inner sleeve is made of an elastic material.

[0039] In one aspect, the inner sleeve is made of silicone rubber, such as VMQ.

[0040] In one aspect, the inner sleeve is made of an elastic material, such as EPDM.

[0041] In one respect, the housing is made of plastic. Specifically, each of the housings is made of plastic material.

[0042] In one aspect, the at least two housings are made of conventional plastic materials. For example, the at least two housings may be made of polyamide (PA) materials.

[0043] In one respect, the length of the housing along the longitudinal axis is greater than the longitudinal length of the inner sleeve.

[0044] In one aspect, the housing extends longitudinally beyond the first opening of the inner sleeve.

[0045] In one aspect, the housing defines a first insertion interface configured to insert an inlet or outlet connector of one of the two cooling plates.

[0046] In one aspect, the first insertion interface is configured to receive, in an insertion manner, an inlet or outlet connector of one of two cooling plates along a first axis. According to this aspect, in use, the first axis coincides with an extension axis of the inlet or outlet connector into which the first insertion interface is inserted.

[0047] In one aspect, the housing extends longitudinally beyond the second opening of the inner sleeve.

[0048] In one aspect, the housing defines a second insertion interface configured to insert an inlet or outlet connector of one of the two cooling plates.

[0049] In one aspect, the second insertion interface is configured to receive, in an insertion manner, an inlet or outlet connector of one of two cooling plates along a second axis. According to this aspect, in use, the second axis coincides with the extended axis of the inlet or outlet connector into which the second insertion interface is inserted.

[0050] In one respect, the first axis and the second axis may coincide with each other, preferably being aligned with the longitudinal axis; or they may be different. Specifically, the first axis and the second axis may be parallel to each other or inclined to each other.

[0051] In one aspect, the inner sleeve is made of a flexible material to compensate for the difference between the first axis and the second axis.

[0052] In one aspect, the housing is configured to compensate for the difference between the first and second axes while keeping the inner sleeve completely enclosed within it, i.e., preventing any part of the inner sleeve from being exposed outward. According to this aspect, the at least two housings are movable relative to each other and are configured to allow the first and second axes to be oriented differently.

[0053] In one aspect, the sealing connector has a substantially mirror-image structure with respect to a plane of symmetry. Specifically, the plane of symmetry is a plane perpendicular to the longitudinal axis. This plane of symmetry is configured to divide the sealing connector into two substantially identical longitudinal halves.

[0054] In one respect, the structure of the inner sleeve is substantially symmetrical with respect to the plane of symmetry.

[0055] In one aspect, the inner sleeve includes a first end, a second end, and a central portion located between the first end and the second end along a longitudinal axis. Specifically, the central portion extends between the first end and the second end. The first end, the central portion, and the second end extend continuously along the longitudinal axis.

[0056] In one respect, the first end and the second end are mirror images of each other with respect to the plane of symmetry.

[0057] In one aspect, the first end defines the first opening.

[0058] In one respect, the second end defines the second opening.

[0059] In one aspect, the inner sleeve has a first transition zone in the area where the first end contacts the central portion, and a second transition zone in the area where the second end contacts the central portion.

[0060] In one aspect, the first end and the second end are substantially cylindrical and have a substantially constant outer diameter. Preferably, the first end and the second end have substantially smooth outer surfaces.

[0061] In one aspect, the opposing inner surfaces of the first end and the second end each include at least one sealing lip. Specifically, the at least one sealing lip protrudes from the opposing inner surfaces toward a longitudinal axis.

[0062] In one aspect, the at least one sealing lip extends in an annular shape along the inner surface about the longitudinal axis.

[0063] In one aspect, the at least one sealing lip is configured to contact an inlet or outlet joint of one of the two cooling plates and is designed to prevent coolant leakage between the inner sleeve and the inlet / outlet joint of one of the two cooling plates.

[0064] In one aspect, the first end and the second end each include two sealing lips.

[0065] In one respect, each sealing lip is tapered. Specifically, at each sealing lip, the inner diameter of the inner sleeve gradually decreases toward the plane of symmetry.

[0066] In one respect, the shape of the central portion is the contraction region of the inner sleeve.

[0067] In one respect, the outer diameter of the central portion is smaller than the outer diameters of the first end and the second end.

[0068] In one respect, the central portion is symmetrical with respect to the plane of symmetry.

[0069] In one aspect, the outer diameter of the inner sleeve exhibits a monotonically increasing function from the plane of symmetry to the first transition zone, and also a monotonically increasing function from the plane of symmetry to the second transition zone. In other words, the outer diameter of the inner sleeve gradually decreases from the first transition zone to the plane of symmetry, and gradually increases from the plane of symmetry to the second transition zone.

[0070] In one aspect, the inner diameter of the central portion of the inner sleeve exhibits a monotonically increasing function from the plane of symmetry to the first transition zone, and also a monotonically increasing function from the plane of symmetry to the second transition zone. In other words, the inner diameter of the inner sleeve gradually decreases from the first transition zone to the plane of symmetry, and gradually increases from the plane of symmetry to the second transition zone.

[0071] It should be noted that the term "monotonically decreasing / increasing function" mentioned here does not mean "strictly monotonically decreasing / increasing function." Therefore, embodiments in which the inner diameter and / or outer diameter have constant segments are still included within the above definition and the purpose of this invention.

[0072] In one aspect, the inner sleeve has a first shoulder on the outer surface of the first transition region and a second shoulder on the outer surface of the second transition region. In other words, the outer surface of the inner sleeve undergoes abrupt changes in diameter in both the first and second transition regions.

[0073] In one aspect, the central portion includes a generally tubular middle section. Specifically, the middle section has a generally smooth inner surface.

[0074] In one aspect, the at least two housings include a first housing and a second housing.

[0075] In one respect, the first housing and the second housing are substantially the same in structure. In other words, the first housing and the second housing are substantially equal.

[0076] In one aspect, the first housing and the second housing are arranged in a symmetrical mirror arrangement with respect to the plane of symmetry of the sealing connector during use.

[0077] In one aspect, the first outer casing is configured to enclose the inner sleeve at least at the first opening of the inner sleeve.

[0078] In one aspect, the first outer casing is configured to at least cover the first end of the inner sleeve. Preferably, the first outer casing is also configured to at least partially cover the central portion of the inner sleeve.

[0079] In one aspect, the first outer shell is generally tubular in shape and is configured to partially enclose the inner sleeve.

[0080] In one respect, the maximum diameter of the outer surface of the first housing is less than 50 millimeters.

[0081] In one aspect, the first housing extends along the longitudinal axis between a first central end and a first peripheral end.

[0082] In one aspect, the first housing defines the first insertion interface at the first peripheral end, the first insertion interface being configured to insert a port or outlet connector of one of the two cooling plates.

[0083] In one aspect, the first housing includes a first peripheral portion and a first central portion. Specifically, the first peripheral portion and the first central portion are connected in series and extend continuously along the longitudinal axis to form the first housing.

[0084] In one aspect, the first peripheral portion defines the first peripheral end, and the first central portion defines the first central end.

[0085] In one aspect, the first housing includes at least one first rib.

[0086] In one aspect, the at least one first rib extends from the inner surface of the first housing.

[0087] In one aspect, the at least one first rib is located at the first peripheral portion.

[0088] In one aspect, the at least one first rib is located generally at the first peripheral end and extends from the inner surface of the first housing towards the longitudinal axis. In other words, the at least one first rib is a protrusion that projects from the inner surface of the first housing near the first peripheral end.

[0089] In one aspect, the at least one first rib extends from the inner surface of the first peripheral portion and is located away from the first peripheral end. According to this aspect, the at least one first rib is not perpendicular to the longitudinal axis, but rather gradually moves away from the inner surface of the first housing as its distance from the first peripheral end increases. In use, the at least one first rib extends toward the plane of symmetry and is configured to guide the insertion of the inlet or outlet connector of one of the two cooling plates. In other words, the at least one first rib serves as an insertion guide structure for the inlet / outlet surfaces of the cooling plates.

[0090] In one aspect, the at least one first rib is configured to contact an inlet or outlet connector. In other words, the inlet / outlet connector of the cooling plate inserted into the first insertion interface is simultaneously contacted by a sealing lip (to prevent coolant leakage) and a first rib, thereby providing better structural stability for the sealed connector.

[0091] In one aspect, the at least one first rib is configured to contact the inner sleeve to prevent the inner sleeve from sliding out of the first insertion port. In other words, the at least one first rib is configured to provide support to the inner sleeve at the first opening, acting as an anti-slip stop to prevent displacement and leakage from the first insertion port.

[0092] In one aspect, the first housing includes a plurality of first ribs.

[0093] In one aspect, the plurality of first ribs are circumferentially spaced along a longitudinal axis at the first peripheral end.

[0094] In one aspect, each first rib occupies a corner segment on the inner surface of the first peripheral end. Preferably, the plurality of first ribs are evenly spaced around the longitudinal axis.

[0095] In one aspect, the first housing includes three first ribs. Preferably, these first ribs are evenly spaced around the longitudinal axis, such that adjacent ribs form a 120° angle.

[0096] In one aspect, the first housing includes a first flange.

[0097] In one aspect, the at least one first flange extends from the inner surface of the first housing.

[0098] In one aspect, the at least one first flange is located at the first central portion.

[0099] In one aspect, the at least one first flange is located approximately at the first central end and extends from the inner surface of the first housing towards the longitudinal axis. In other words, the at least one first flange is a protrusion extending from the inner surface of the first housing near the first central end.

[0100] In one aspect, the at least one first flange is tapered. Specifically, at the at least one first flange, the inner diameter of the first housing increases with increasing distance from the first central end.

[0101] In one aspect, the at least one first flange is complementary in shape to a longitudinal portion of the central portion of the inner sleeve.

[0102] In one aspect, the at least one first flange is configured to form a shape fit with at least a portion of the central portion of the inner sleeve.

[0103] In one aspect, a shoulder is provided at the end of the at least one first flange that is farther from the first central end. According to this aspect, the shoulder of the first flange is configured to abut against the first shoulder of the inner sleeve at the first transition zone.

[0104] In one aspect, the first housing includes a plurality of first flanges.

[0105] In one aspect, the plurality of first flanges are circumferentially spaced along the longitudinal axis at the first central end.

[0106] In one aspect, each first flange occupies a corner segment on the inner surface of the first central end. Preferably, the plurality of first flanges are equally spaced around the longitudinal axis.

[0107] In one aspect, the first housing includes three first flanges. Preferably, these first flanges are evenly spaced around the longitudinal axis, with adjacent flanges forming a 120° angle.

[0108] In one aspect, the first flange occupies a corner section on the inner surface of the first housing where the first rib is absent. According to this aspect, the first flange is located in the corner section at the first central end, while the corresponding corner section at the first peripheral end lacks the first rib. Similarly, the first rib occupies the corner section at the first peripheral end, while the corresponding corner section at the first central end lacks the first flange.

[0109] In one respect, the first flange and the first rib are arranged alternately in the circumferential direction.

[0110] In one aspect, in an embodiment comprising three first ribs and three first flanges, each first rib occupies a 60° angular segment at its first peripheral end and is spaced 60° angular segments from adjacent first ribs. According to this aspect, each first flange occupies a 60° angular segment at its first central end and is spaced 60° angular segments from adjacent first flanges. The arrangement of the first flanges at the first central end is offset by 60° relative to the arrangement of the first ribs at the first peripheral end.

[0111] In one aspect, the second housing is configured to enclose the inner sleeve at least at the second opening.

[0112] In one aspect, the second outer casing is configured to at least cover a second end of the inner sleeve. Preferably, the second outer casing is also configured to at least partially cover a central portion of the inner sleeve.

[0113] In one aspect, the second outer shell is generally tubular in shape and is configured to partially enclose the inner sleeve.

[0114] In one respect, the maximum diameter of the outer surface of the second housing is less than 50 mm.

[0115] In one aspect, the second housing extends along a longitudinal axis between the second central end and the second peripheral end.

[0116] In one aspect, the second housing defines the second insertion interface at the second peripheral end, the second insertion interface being configured to receive, in an insertion manner, an inlet or outlet connector of one of the two cooling plates.

[0117] In one aspect, the second housing includes a second peripheral portion and a second central portion. Specifically, the second peripheral portion and the second central portion are connected in series and extend continuously along a longitudinal axis to form the second housing.

[0118] In one aspect, the second peripheral portion defines a second peripheral end, and the second central portion defines a second central end.

[0119] In one aspect, the second housing includes at least one second rib.

[0120] In one aspect, the at least one second rib extends from the inner surface of the second housing.

[0121] In one aspect, the at least one second rib is located in the second peripheral portion.

[0122] In one aspect, the at least one second rib is located generally at the second peripheral end and extends from the inner surface of the second housing towards the longitudinal axis. In other words, the at least one second rib is a protrusion extending from the inner surface of the second housing near the second peripheral end.

[0123] In one aspect, the at least one second rib extends from the inner surface of the second peripheral portion and is located away from the second peripheral end. According to this aspect, the at least one second rib is not perpendicular to the longitudinal axis, but rather gradually moves away from the inner surface of the second housing as its distance from the second peripheral end increases. In use, the at least one second rib extends toward the plane of symmetry and is configured to guide the insertion of the inlet or outlet connector of one of the two cooling plates. In other words, the at least one second rib constitutes a guide for guiding the insertion of the corresponding inlet or outlet connector in the second insertion interface.

[0124] In one aspect, the at least one second rib is configured to contact either the inlet or outlet connector. In other words, the inlet / outlet connector of the cooling plate inserted into the second insertion interface is simultaneously contacted by the sealing lip (for preventing coolant leakage) and the second rib, thereby providing better structural stability for the sealed connector.

[0125] In one aspect, the at least one second rib is configured to contact the inner sleeve and prevent the inner sleeve from sliding out of the second insertion port. In other words, the at least one second rib is configured to abut against the inner sleeve at the second opening of the inner sleeve as an anti-slip stop to prevent displacement and leakage from the second insertion port.

[0126] In one aspect, the second housing includes a plurality of second ribs.

[0127] In one aspect, the plurality of second ribs are circumferentially spaced along the longitudinal axis at the second peripheral end.

[0128] In one aspect, each second rib occupies a corner segment on the inner surface of the second peripheral end. Preferably, the plurality of second ribs are evenly spaced around the longitudinal axis.

[0129] In one aspect, the second housing includes three second ribs. Preferably, these second ribs are evenly spaced around the longitudinal axis, such that adjacent ribs form a 120° angle.

[0130] In one aspect, the second housing includes a second flange.

[0131] In one aspect, the at least one second flange extends from the inner surface of the second housing.

[0132] In one aspect, the at least one second flange is located in the second central portion.

[0133] In one aspect, the at least one second flange is located approximately at the second central end and extends from the inner surface of the second housing toward the longitudinal axis. In other words, the at least one second flange is a protrusion extending from the inner surface of the second housing near the second central end.

[0134] In one aspect, the at least one second flange is tapered. Specifically, at the at least one second flange, the inner diameter of the second housing increases with increasing distance from the second central end.

[0135] In one aspect, the at least one second flange is complementary in shape to a longitudinal portion of the central portion of the inner sleeve.

[0136] In one aspect, the at least one second flange is configured to form a shape fit with at least a portion of the central portion of the inner sleeve.

[0137] In one aspect, a shoulder is provided at the end of the at least one second flange that is farther from the second central end. The shoulder is configured to abut against a second shoulder of the inner sleeve at the second transition zone.

[0138] In one aspect, the second housing includes a plurality of second flanges.

[0139] In one aspect, the plurality of second flanges are circumferentially spaced along the longitudinal axis at the second central end.

[0140] In one aspect, each second flange occupies a corner segment on the inner surface of the second central end. Preferably, the plurality of second flanges are equally spaced around the longitudinal axis.

[0141] In one aspect, the second housing includes three second flanges. Preferably, these second flanges are evenly spaced around the longitudinal axis, such that adjacent flanges form a 120° angle.

[0142] In one aspect, the second flange occupies a corner section on the inner surface of the second housing where the second rib is absent. According to this aspect, the second flange is located in the corner section at the second central end, while the corresponding corner section at the second peripheral end lacks the second rib. Similarly, the second rib occupies the corner section at the second peripheral end, while the corresponding corner section at the second central end lacks the second flange.

[0143] In one respect, the second flange and the second rib are arranged alternately in the circumferential direction.

[0144] In one aspect, in an embodiment comprising three second ribs and three second flanges, each second rib occupies a 60° angular segment at the second peripheral end and is spaced 60° angular segments from adjacent ribs. According to this aspect, each second flange occupies a 60° angular segment at the second central end and is spaced 60° angular segments from adjacent second flanges. The arrangement of the second flanges at the second central end is offset by 60° relative to the arrangement of the second ribs at the second peripheral end.

[0145] In one aspect, the at least two housings include a third housing.

[0146] In one aspect, the third housing is located between the first housing and the second housing. According to this aspect, the housing is composed of the first housing, the third housing, and the second housing connected in series along a longitudinal axis.

[0147] In one aspect, the third outer shell is configured to at least partially enclose the central portion of the inner sleeve. According to this aspect, the third outer shell is in the shape of a tubular sleeve.

[0148] In one aspect, the third housing includes a pair of annular ribs on its respective outer surface. Specifically, the pair of annular ribs extends about the longitudinal axis on the outer surface of the third housing.

[0149] In one aspect, the pair of annular ribs are located at both longitudinal ends of the third housing. Specifically, each annular rib is located at a longitudinal end of the third housing extending along the longitudinal axis.

[0150] In one aspect, the annular ribs are configured to act as guides for the relative movement of the first housing and / or the second housing relative to the third housing. Specifically, these annular ribs define sliding surfaces for movement of the first and second housings during operation to compensate for misalignment between the first and second axes.

[0151] In one aspect, the inner sleeve and the third outer shell are co-molded.

[0152] In another aspect, the invention also relates to a cooling system comprising at least one electrical / electronic component.

[0153] In one aspect, the at least one electrical / electronic component includes at least one battery. Preferably, the at least one battery is configured to power an electric vehicle.

[0154] According to this embodiment, the at least one battery may include a cylindrical battery, a prismatic battery, or any other known type of battery.

[0155] In one aspect, the cooling system includes at least two cooling plates. In another aspect, the at least two cooling plates are disposed spaced apart from each other and configured to accommodate the at least one electrical / electronic component within a space defined between them.

[0156] In one aspect, the at least two cooling plates are configured to be acted upon by coolant.

[0157] In one aspect, the at least two cooling plates act on the at least one electrical / electronic component during operation and are configured to exchange heat with the at least one electrical / electronic component. Specifically, the at least two cooling plates are configured to absorb heat from the at least one electrical / electronic component, thereby cooling it.

[0158] In one aspect, the cooling system includes at least one sealing connector according to at least one of the foregoing aspects. Specifically, the at least one sealing connector is disposed between the at least two cooling plates.

[0159] In one aspect, the at least one sealing connector is configured to fluidly communicate the at least two cooling plates in order to facilitate the exchange of the coolant.

[0160] In one aspect, the cooling system includes a temperature and / or pressure handling device for the coolant. According to this aspect, the temperature and / or pressure handling device includes at least one of a compressor, an evaporator, a radiator, and / or an expander.

[0161] In one aspect, the cooling system includes a plurality of pipes configured to connect the at least two cooling plates to the temperature and / or pressure handling device to form a closed loop.

[0162] In one aspect, each cooling plate includes an internal cavity, meaning that each cooling plate has a hollow internal structure. This internal cavity is configured to be acted upon by the coolant.

[0163] In one aspect, the internal cavity is at least partially defined by a heat exchange wall. This heat exchange wall is configured to transfer heat between the at least one electrical / electronic component and the coolant.

[0164] In one aspect, each cooling plate includes at least one inlet connector and at least one outlet connector. The at least one inlet connector and the at least one outlet connector are in fluid communication with the internal cavity.

[0165] In one aspect, the at least one inlet connector and the at least one outlet connector are configured to be received by the at least one sealing connector. Specifically, the at least one inlet connector and the at least one outlet connector are configured to be inserted into a first insertion interface and / or a second insertion interface of the sealing connector.

[0166] In one aspect, the inlet connector is configured to receive the coolant into the corresponding cooling plate and deliver the coolant to the internal cavity.

[0167] In one aspect, the outlet connector is configured to receive the coolant from the internal cavity and output the coolant from the corresponding cooling plate.

[0168] In one aspect, the at least one inlet connector and the at least one outlet connector are tubular in structure.

[0169] In another aspect, the invention also relates to a method of manufacturing a sealed connector for two cooling plates in a cooling system for at least one electrical / electronic component. In particular, the invention relates to a method of manufacturing a sealed connector according to one or more of the foregoing aspects.

[0170] In one aspect, the manufacturing method includes the following steps: - A flexible inner sleeve is manufactured, which has a generally tubular structure about a longitudinal axis, the inner sleeve defining a channel extending between a first opening and a second opening, the channel being configured to allow coolant to pass through; - Use plastic materials to manufacture at least two distinct outer shells; - The at least two outer shells are assembled around the inner sleeve so that they are connected in series and substantially in contact along the longitudinal axis to form a housing that defines a complete and hinged external envelope structure of the sealing connector, which wraps the inner sleeve from the outside over the entire longitudinal extension of the inner sleeve along the longitudinal axis.

[0171] In one aspect, the step of manufacturing at least two housings includes manufacturing a first housing and a second housing, which are substantially identical in structure. According to this aspect, the step of assembling the at least two housings around the inner sleeve includes assembling the first housing at a first opening and assembling the second housing at a second opening.

[0172] In one aspect, the step of manufacturing at least two housings includes manufacturing a third housing, which, in use, will be positioned between the first and second housings along the longitudinal axis.

[0173] In one aspect, the third outer shell is co-molded with the inner sleeve.

[0174] According to the present invention, other features and advantages can be more clearly understood through a detailed description of preferred, but not only, embodiments of a sealed connector for a cooling plate, a cooling system comprising at least one electrical / electronic component, and a method for manufacturing the sealed connector. Attached Figure Description

[0175] Some embodiments and aspects of the present invention will be described below in conjunction with the accompanying drawings, which are for illustrative purposes only and are not restrictive, wherein: Figure 1-3 A perspective view, a front view, and a sectional view of a sealing connector according to a first embodiment of the present invention are shown respectively; Figure 4 It shows Figure 1 Exploded view of the sealed connector shown; Figure 5-7 They are shown respectively Figure 1 Perspective view, front view, and sectional view of one component of the sealing connector shown; Figure 8-10 They are shown respectively Figure 1 Two different perspective and sectional views of another component of the sealing connector shown; Figure 11-13 A perspective view, a front view, and a sectional view of a sealing connector according to a second embodiment of the present invention are shown respectively; Figure 14 It shows Figure 11 Exploded view of the sealed connector shown; Figure 15-17 They are shown respectively Figure 11 Perspective view, front view, and sectional view of one component of the sealing connector shown; Figure 18-20 They are shown respectively Figure 11 Perspective view, front view, and sectional view of another component of the sealing connector shown; Figure 21 A perspective view of a cooling system according to a first embodiment of the present invention is shown; Figure 22 and Figure 23 They are shown respectively Figure 21 Two cross-sectional views showing a detail of the cooling system in two different configurations; Figure 24 A perspective view of a cooling system according to a second embodiment of the present invention is shown; Figure 25 and Figure 26 They are shown respectively Figure 24Two cross-sectional views showing a detail of the cooling system in two different configurations. Detailed Implementation

[0176] It should be noted that, in this detailed description, corresponding parts shown in the various figures use the same numerical designations. The objects shown in the figures may not be drawn to scale; therefore, the parts and components related to the object of the invention in the figures may be merely schematic representations.

[0177] Referring to the accompanying drawings, the overall structure of the sealed connector 100 can be seen. Specifically, this specification pertains to the sealed connector 100 for use with two cooling plates 200, 300 in a cooling system S for at least one electrical / electronic component B, as shown below. Figure 21-26 As shown in the illustration.

[0178] In the following description, the at least one electrical / electronic component B will be exemplarily referred to as at least one battery. This designation is merely illustrative and not limiting, as the sealed connector 100 according to the invention can be used to connect two cooling plates in a cooling system for at least one general electrical / electronic component B. In particular, this description is applicable to maintaining the temperature of general components, preferably electrical / electronic components, to ensure their normal and safe operation.

[0179] For the reasons stated above, the at least one electrical / electronic component B includes at least one battery B. Preferably, the at least one battery B is a battery used to power an electric vehicle.

[0180] It should be noted from the outset that the accompanying drawings illustrate two different embodiments of the sealing connector 100, both of which fall under the inventive concept upon which this specification is based: Figure 1-10 and Figure 21-23 The first embodiment shown, and Figure 11-20 and Figure 24-26 The second embodiment is shown. As illustrated in the accompanying drawings, the two embodiments differ in overall structure and the number of components constituting the sealed connector 100. Specifically, the first embodiment has a more compact structure, while the second embodiment has additional components. Unless explicitly stated otherwise, the following discussion should be considered to apply to both embodiments simultaneously.

[0181] As clearly shown in the accompanying drawings, the sealing connector 100 includes an inner sleeve 1. Figure 5-7 and Figure 15-17 As shown, the inner sleeve 1 has a generally tubular structure about the longitudinal axis Y. Specifically, the inner sleeve 1 defines a channel 10 that extends along the longitudinal axis Y between a first opening 11 and a second opening 12. In use, the channel 10 is configured to allow coolant to pass between the first opening 11 and the second opening 12.

[0182] Furthermore, the sealed connector 100 includes a housing 2 that encloses the inner sleeve 1. For example... Figure 3 and Figure 13 As shown in the cross-section, the housing 2 includes at least two outer shells 3, 4, and 5 connected in series along the longitudinal axis Y. Specifically, the at least two outer shells 3, 4, and 5 are independent of each other and movable. Each outer shell 3, 4, and 5 is configured to enclose the longitudinal portion of the inner sleeve 1 from the outside.

[0183] In this specification, the terms “inner,” “internal,” “inward,” etc., and the terms “outer,” “external,” “outward,” etc., refer to the radial direction relative to the longitudinal axis Y, that is, the direction of movement in or away from the longitudinal axis within a plane perpendicular to the longitudinal axis.

[0184] The housing 2 defines a complete and hinged external envelope structure for the sealed connector. Specifically, the housing 2 externally encloses the inner sleeve 1 along its entire longitudinal extension along the longitudinal axis Y. For example... Figure 1-3 and Figure 11-13 As clearly shown, the housing 2 completely encloses the inner sleeve 1, so that no part of the inner sleeve itself is substantially exposed.

[0185] As will become clearer below, the presence of two or more independent and movable outer shells constituting housing 2 allows the sealing connector 100 to compensate for any misalignment between the cooling plates 200, 300 it holds, while keeping the inner sleeve 1 completely contained within housing 2 without any part of it being exposed outward. In other words, the complete and hinged outer envelope structure defined by housing 2 ensures the ability to compensate for misalignment between cooling plates 200, 300, while maintaining the structural robustness of the sealing connector 100.

[0186] Preferably, the at least two outer shells 3, 4, and 5 are substantially in contact with each other, meaning that the distance between two longitudinally adjacent outer shells is negligible relative to the longitudinal length of the shell 2. Specifically, the at least two outer shells 3, 4, and 5 can move relative to each other in the lateral direction relative to the longitudinal axis Y; that is, the outer shells can slide relative to adjacent outer shells or through relative rotation of the outer shells relative to adjacent outer shells.

[0187] The inner sleeve 1 is made of a rubber-like material. Preferably, the inner sleeve 1 is made of an elastic material. In one embodiment, the inner sleeve 1 is made of silicone rubber, such as VMQ. In another embodiment, the inner sleeve 1 is made of an elastic material, such as EPDM.

[0188] The housing 2 is made of plastic material. Specifically, each of the at least two outer shells 3, 4, and 5 is made of plastic material. In one embodiment, the at least two outer shells 3, 4, and 5 are made of common plastic material. For example, the at least two outer shells 3, 4, and 5 may be made of polyamide (PA) materials.

[0189] according to Figure 3 and Figure 13 As shown in the cross-sectional view, the longitudinal extension length of the housing 2 along the longitudinal axis Y is greater than the longitudinal extension length of the inner sleeve 1.

[0190] At one longitudinal end, the housing 2 extends longitudinally outward at the first opening 11 of the inner sleeve 1, defining a first insertion interface 21. For example... Figure 21-26 As shown, in use, the first insertion interface 21 is configured to receive the inlet connector 201, 301 or the outlet connector 202, 302 of one of the two cooling plates 200, 300. Specifically, the first insertion interface 21 is configured to receive the inlet connector 201, 301 or the outlet connector 202, 302 of one of the two cooling plates 200, 300 in an insertion manner along a first axis A1. In use, the first axis A1 coincides with the extension axis of the inlet connector 201, 301 or the outlet connector 202, 302 inserted into the first insertion interface 21. (Refer to...) Figure 21-26 In one embodiment, the first insertion interface 21 accommodates the inlet connector 201 of the cooling plate 200.

[0191] At the other longitudinal end, opposite to the aforementioned end, the housing 2 extends longitudinally at the second opening 12 of the inner sleeve 1. For example... Figure 21-26 As shown, the housing 2 defines a second insertion interface 22 configured to insert into one of the two cooling plates 200, 300, or an outlet connector 202, 302. Specifically, the second insertion interface 22 is configured to insert into the inlet connector 201, 301 or the outlet connector 202, 302 along a second axis A2. In use, the second axis A2 coincides with the extension axis of the inlet connector 201, 301 or the outlet connector 202, 302 inserted into the second insertion interface 22. (Refer to...) Figure 21-26 In one embodiment, the second insertion interface 22 accommodates the outlet connector 302 of the cooling plate 300.

[0192] like Figure 22 and Figure 25 As shown in the cross-sectional view, the first axis A1 and the second axis A2 can coincide with each other, preferably being aligned with the longitudinal axis Y; or as... Figure 23 and Figure 26As shown in the cross-sectional view, the first axis A1 and the second axis A2 can be different. Specifically, the first axis A1 and the second axis A2 can be parallel to each other or inclined to each other. Figure 22 and Figure 25 In this case, cooling plates 200 and 300 are aligned with each other; while Figure 23 and Figure 26 In this case, cooling plates 200 and 300 are misaligned.

[0193] Therefore, the inner sleeve 1 is made of a flexible material to compensate for the difference between the first axis A1 and the second axis A2. Similarly, the at least two outer shells 3, 4, and 5 are movable relative to each other and are configured such that the directions of the first axis A1 and the second axis A2 are different from each other. Specifically, the housing 2 is configured to compensate for the difference between the first axis A1 and the second axis A2 while keeping the inner sleeve 1 completely enclosed within it, i.e., preventing any part of the inner sleeve from being exposed outwards.

[0194] Figure 22 and Figure 25 The diagram illustrates the nominal resting state of the sealing connector 100 when it is positioned between the two cooling plates 200 and 300. In this configuration, the first axis A1 and the second axis A2 are substantially coincident with the longitudinal axis Y, and all components of the sealing connector 100 remain aligned. The inlet connectors 201 and 301 and the outlet connectors 202 and 302 are also aligned along the longitudinal axis. It should be noted that in this resting state, the sealing connector 100 is structurally a substantially mirror image of the plane of symmetry Z. Specifically, the plane of symmetry Z is a plane perpendicular to the longitudinal axis Y and is configured to divide the sealing connector into two substantially identical longitudinal halves.

[0195] Figure 23 and Figure 26 The diagram illustrates a misalignment between cooling plates 200 and 300. Specifically, due to this misalignment, the first axis A1 and the second axis A2 are not on the same axis, i.e., not on the longitudinal axis Y. Therefore, to maintain the connection between the cooling plates, the sealing connector 100 also deforms relative to its stationary state. Specifically, since the inner sleeve 1 is a flexible structure, it undergoes plastic deformation, and the outer shells 3, 4, and 5, constituting the housing, shift relative to each other while following the plastic deformation of the inner sleeve 1, but always keeping the inner sleeve contained within it, preventing any part of it from being exposed outwards. In this way, the sealing connector 100 can maintain fluid communication between the cooling plates 200 and 300 without damaging itself or compromising the seal with the inlet connectors 201, 301 and / or outlet connectors 202, 302.

[0196] Figure 5-7 and Figure 15-17The inner sleeve 1 is shown in detail. As shown, the inner sleeve 1 includes a first end 13, a second end 14, and a central portion 15 located between the first end 13 and the second end 14, arranged longitudinally along the longitudinal axis Y. Specifically, the first end 13, the central portion 15, and the second end 14 extend continuously along the longitudinal axis Y to form the inner sleeve 1, wherein the central portion 15 is the middle section located between the first end 13 and the second end 14.

[0197] Preferably, the inner sleeve 1 is structurally substantially symmetrical with respect to the plane of symmetry Z. Specifically, the first end 13 and the second end 14 are arranged in a mirror image with respect to the plane of symmetry Z.

[0198] like Figure 6 and Figure 16 As shown in the cross-section, the first end 13 defines a first opening 11, and the second end 14 defines a second opening 12. Furthermore, the inner sleeve 1 has a first transition zone in the contact area between the first end 13 and the central portion 15, and a second transition zone in the contact area between the second end 14 and the central portion 15.

[0199] In the illustrated embodiment, the first end 13 and the second end 14 have a substantially cylindrical structure with a substantially constant outer diameter. More preferably, the first end 13 and the second end 14 have substantially smooth outer surfaces.

[0200] On their respective inner surfaces, the first end 13 and the second end 14 each include at least one sealing lip 16. For example... Figure 6 and Figure 16 As shown in the cross-section, at least one sealing lip 16 protrudes from the opposing inner surfaces toward the longitudinal axis Y. Preferably, at least one sealing lip 16 extends around the longitudinal axis Y along the opposing inner surfaces.

[0201] Specifically, the at least one sealing lip 16 is configured to contact the inlet connector 201, 301 or the outlet connector 202, 302 of one of the two cooling plates, and is configured to prevent coolant leakage between the inner sleeve 1 and the corresponding inlet / outlet connector.

[0202] Advantageously, the arrangement of at least one sealing lip 16 is unaffected by plastic deformation of the inner sleeve 1. In fact, as... Figure 23 and Figure 26 As shown, the plastic deformation of the inner sleeve 1 mainly occurs at the central portion 15, where the sealing lip 16 is not present. Therefore, the movement required to compensate for any misalignment between the first axis A1 and the second axis A2 will not affect the sealing area.

[0203] In the illustrated embodiment, the first end 13 and the second end 14 each include two sealing lips.

[0204] In these embodiments, each sealing lip 16 has a tapered structure. Specifically, at each sealing lip 16, the inner diameter of the inner sleeve 1 gradually decreases in the direction toward the plane of symmetry Z. In other words, at each sealing lip 16, the inner diameter of the inner sleeve decreases as the distance from the corresponding first / second opening 11 / 12 decreases.

[0205] Advantageously, the construction of these sealing lips 16 ensures a better seal with the corresponding inlet fittings 201, 301 or outlet fittings 202, 303. Furthermore, the construction of these sealing lips ensures a seal with the inlet / outlet fittings of the cooling plates 200, 300 even under vacuum conditions.

[0206] Preferably, the central portion 15 is configured as a contraction region of the inner sleeve 1. Specifically, the outer diameter of the central portion 15 is smaller than the outer diameter of the first end 13 and the second end 14.

[0207] More preferably, the structure of the central portion 15 is symmetrical with respect to the plane of symmetry Z.

[0208] In the illustrated embodiment, the outer diameter of the inner sleeve 15 is a monotonically increasing function from the plane of symmetry Z to the first transition region, and also a monotonically increasing function from the plane of symmetry to the second transition region. In other words, the outer diameter of the inner sleeve gradually decreases from the first transition region to the plane of symmetry Z, and gradually increases from the plane of symmetry Z to the second transition region.

[0209] Similarly, the inner diameter of the central portion 15 exhibits a monotonically increasing function from the plane of symmetry Z to the first transition zone, and also a monotonically increasing function from the plane of symmetry Z to the second transition zone. In other words, the inner diameter of the inner sleeve gradually decreases from the first transition zone to the plane of symmetry Z, and gradually increases from the plane of symmetry Z to the second transition zone.

[0210] It should be noted that "monotonically decreasing / increasing function" here does not mean "strictly monotonically decreasing / increasing function". Therefore, as... Figure 11-20 and Figure 24-26 As shown, embodiments in which the inner diameter of the central portion 15 and / or the inner diameter has a constant segment are still included within the scope of the above definition and the present invention.

[0211] In the illustrated embodiment, the inner sleeve 1 has a first shoulder 17 at a first transition region on its outer surface and a second shoulder 18 at a second transition region. In other words, the outer surface of the inner sleeve 1 undergoes abrupt changes in diameter at the first and second transition regions.

[0212] exist Figure 11-20 and Figure 24-26 In one embodiment, the central portion 15 includes a generally tubular middle section 15A. Specifically, the middle section 15A has a generally smooth inner surface, meaning that its inner diameter remains generally constant throughout its longitudinal extension.

[0213] like Figure 8-10 and Figure 18-20 As shown, the housing 2 comprises at least two outer shells 3, 4, and 5, including a first outer shell 3 and a second outer shell 4. It should be noted that in the first embodiment... Figure 1-10 and Figure 21-23 In the first embodiment, the housing 2 is entirely composed of the first outer shell 3 and the second outer shell 4; while in the second embodiment... Figure 11-20 and Figure 24-26 In this embodiment, the housing 2 is only partially defined by the first outer shell 3 and the second outer shell 4, because there is another element that will be described below. It should be noted that the first outer shell 3 and the second outer shell 4 in the first embodiment are substantially the same as those in the second embodiment.

[0214] like Figure 4 and Figure 14 As shown in the exploded view, the first outer shell 3 and the second outer shell 4 have essentially the same structure. In other words, the first outer shell 3 is essentially equivalent to the second outer shell 4. Therefore, the following description of the first outer shell 3 also applies to the second outer shell 4 with the necessary differences.

[0215] according to Figure 3 and Figure 13 In cross-section, the first outer shell 3 and the second outer shell 4 are arranged mirror images of the sealing connector's plane of symmetry Z during use. Specifically, the first outer shell 3 is configured to enclose the inner sleeve 1 at least at the first opening 11, and the second outer shell 4 is configured to enclose the inner sleeve 1 at least at the second opening 12. More specifically, the first outer shell 3 is configured to enclose at least the first end 13 of the inner sleeve 1, and the second outer shell 4 is configured to enclose at least the second end 14 of the inner sleeve 1. Preferably, the first outer shell 3 and the second outer shell 4 are also configured to at least partially enclose the central portion 15 of the inner sleeve 1.

[0216] In the illustrated embodiment, the first outer shell 3 and the second outer shell 4 are generally tubular in shape and are configured to partially enclose the inner sleeve 1. Preferably, the maximum diameter of the outer surface of the first outer shell 3 and the second outer shell 4 is less than 50 mm.

[0217] like Figure 8-10 As shown, the first outer shell 3 extends along the longitudinal axis X between the first central end 31 and the first peripheral end 32.

[0218] Specifically, the first housing 3 defines a first insertion interface 21 at its first peripheral end 32, which is configured to receive an inlet connector 201, 301 or an outlet connector 202, 302 of one of the two cooling plates 200, 300. Similarly, the second housing 4 defines a second insertion interface 22 at its respective second peripheral end.

[0219] like Figure 8 As shown, the first outer shell 3 includes a first central portion 33 and a first peripheral portion 34. Specifically, the first central portion 33 and the first peripheral portion 34 are connected in series and extend continuously along the longitudinal axis X to form the first outer shell 3. In particular, the first central portion 33 defines a first central end 31, and the first peripheral portion 34 defines a first peripheral end 32.

[0220] Preferably, the first outer casing 3 includes at least one first rib 35. For example... Figure 10 As shown in the cross-section, the at least one first rib 35 extends from the inner surface of the first housing 3.

[0221] Preferably, the at least one first rib 35 is located at the first peripheral portion 34. Specifically, the at least one first rib 35 is generally located at the first peripheral end 32 and extends from the inner surface of the first housing 3 toward the longitudinal axis Y. In other words, the at least one first rib 35 is a protrusion that projects from the inner surface of the first housing 3 near the first peripheral end 32.

[0222] More preferably, the at least one first rib 35 extends from the inner surface of the first peripheral portion 34 and gradually deviates from the longitudinal axis as the distance from the first peripheral end 32 increases. Figure 10 As shown, the at least one first rib 35 is not perpendicular to the longitudinal axis Y, but gradually approaches the plane of symmetry Y as its distance from the first peripheral end 32 increases, and is configured to guide the insertion of the inlet connector 201, 301 or outlet connector 202, 302 of one of the two cooling plates 200, 300. In other words, the at least one first rib 35 serves to guide the insertion of the cooling plate inlet / outlet interface. In use, the at least one first rib 35 is also configured to contact the inlet connector 201, 301 or outlet connector 202, 302. In other words, the inlet / outlet connector of the cooling plate inserted into the first insertion interface 21 is simultaneously contacted by the sealing lip 16 (for preventing coolant leakage) and the first rib 35, thereby providing better structural stability for the sealing connector 100.

[0223] Furthermore, the at least one first rib 35 is preferably configured to abut against the inner sleeve 1 and prevent the inner sleeve 1 from sliding out of the first insertion port 21. In other words, the at least one first rib 35 is configured to provide support for the inner sleeve at the first opening 11, acting as an anti-slip stop to prevent it from shifting and leaking out of the first insertion port 21.

[0224] In a preferred embodiment, the first housing 3 includes a plurality of first ribs 35. Specifically, the plurality of first ribs 35 are circumferentially spaced along the longitudinal axis Y at the first peripheral end 32. More specifically, each first rib 35 occupies a corner segment on the inner surface of the first peripheral end 32. Preferably, the plurality of first ribs 35 are equally spaced around the longitudinal axis Y.

[0225] In the embodiment shown in the accompanying drawings, the first housing 3 includes three first ribs 35. Preferably, these first ribs 35 are evenly spaced around the longitudinal axis Y, such that adjacent ribs form a 120° angle.

[0226] Preferably, the first housing 3 includes a first flange 36. For example... Figure 10 As shown, the at least one first flange 36 extends from the inner surface of the first housing 3.

[0227] Preferably, at least one first flange 36 is located at the first central portion 33. Specifically, at least one first flange 36 is located approximately at the first central end 31 and extends from the inner surface of the first housing 3 toward the longitudinal axis X. In other words, the at least one first flange 36 is a protrusion extending from the inner surface of the first housing 3 near the first central end 31.

[0228] In the illustrated embodiment, the at least one first flange 36 has a tapered structure. Specifically, at at least one first flange 36, the inner diameter of the first outer casing 3 increases with increasing distance from the first central end 31.

[0229] like Figure 3 and Figure 13 As shown, the at least one first flange 36 is shape-complementary to a longitudinal portion of the central portion 15 of the inner sleeve 1. Specifically, the at least one first flange 36 is configured to form a shape fit with at least a portion of the central portion 15 of the inner sleeve 1.

[0230] Preferably, such as Figure 10 As shown in the cross-section, at an end farther from the first central end 31, at least one first flange 36 has a shoulder 36A, which is configured to abut against the first shoulder 17 of the inner sleeve 1 at the first transition zone (see...). Figure 3 and Figure 13 (Cross section).

[0231] In a preferred embodiment, the first housing 3 includes a plurality of first flanges 36. Specifically, the plurality of first flanges 36 are circumferentially spaced along the longitudinal axis Y at the first central end 31, and each first flange 36 occupies a corner segment on the inner surface of the first central end 31 of the first housing 3. Preferably, the plurality of first flanges 36 are equally spaced around the longitudinal axis Y.

[0232] In the embodiment shown in the accompanying drawings, the first housing 3 includes three first flanges 36. Preferably, these first flanges 36 are equally spaced around the longitudinal axis Y, such that adjacent flanges form a 120° angle.

[0233] Preferably, such as Figure 8-10 As shown, the first flange 36 occupies the corner section on the inner surface of the first housing 3 where the first rib 35 is not present. Specifically, the first flange 36 occupies the corner section of the first central end 31, while the corresponding corner section of the first peripheral end 32 does not contain the first rib 35. Similarly, the first rib 35 occupies the corner section of the first peripheral end 32, while the corresponding corner section of the first central end 31 does not contain the first flange 36. In other words, the first flange 35 and the first rib 36 are arranged alternately in the circumferential direction.

[0234] In the illustrated embodiment, three first ribs 35 and three first flanges 36 are included. Each first rib 35 occupies a 60° angular segment at the first peripheral end 32 and is spaced 60° angular segments from adjacent ribs. Similarly, each first flange 36 occupies a 60° angular segment at the first central end 31 and is spaced 60° angular segments from adjacent first flanges. The arrangement of the first flanges 36 at the first central end 31 is offset by 60° relative to the arrangement of the first ribs 35 at the first peripheral end 32.

[0235] exist Figure 11-20 and Figure 24-26 In this embodiment, the at least two outer shells 3, 4, and 5 include a third outer shell 5. Figure 18-20 The third outer shell 5 is shown separately. As shown, the third outer shell 5 is located between the first outer shell 3 and the second outer shell 4, so that the housing 2 is composed of the first outer shell 3, the third outer shell 5 and the second outer shell 4 connected in series along the longitudinal axis Y.

[0236] like Figure 13 As shown, the third outer shell 5 is in the shape of a tubular sleeve and is configured to at least partially enclose the central portion 15 of the inner sleeve 1.

[0237] Preferably, the third housing 5 includes a pair of annular ribs 51, 52 on its respective outer surface. Specifically, the pair of annular ribs 51, 52 extends about the longitudinal axis Y on the outer surface of the third housing 5. In particular, the pair of annular ribs 51, 52 are located at the longitudinal ends of the third housing 5. Specifically, each annular rib is located at a longitudinal end of the third housing extending along the longitudinal axis Y.

[0238] The annular ribs 51 and 52 are configured to act as guides for the relative movement of the first housing 3 and / or the second housing 4 relative to the third housing 5. Specifically, as... Figure 26As shown, these annular ribs 51, 52 define sliding surfaces for the movement of the first housing 3 and the second housing 4 during the operation of compensating for misalignment between the first axis A1 and the second axis A2.

[0239] Preferably, the inner sleeve 1 and the third outer shell 5 are co-molded.

[0240] Another object of this description is as follows Figure 21-26 The schematic diagram illustrates a cooling system S for at least one electrical / electronic component B. Specifically, the at least one electrical / electronic component includes at least one battery B, preferably a battery for powering an electric vehicle.

[0241] According to an embodiment, the at least one battery B may comprise a cylindrical battery or a prismatic battery, or any other known type of battery. In the illustrated figure, the at least one battery B is shown as a cylindrical battery.

[0242] The cooling system S includes at least two cooling plates 200 and 300. Figure 21-26 In the embodiments described herein, the cooling system S includes only two cooling plates 200 and 300, but embodiments including multiple cooling plates are also included within the scope of this description.

[0243] like Figure 21 and Figure 24 As shown, the cooling plates 200 and 300 are spaced apart from each other and configured to accommodate the at least one battery B within a space defined between them. In fact, as... Figure 21 and Figure 24 As shown, the cooling plates 200 and 300 are parallel to each other, and at least one battery B is placed in the space defined between them.

[0244] Furthermore, the at least two cooling plates 200, 300 are configured to be acted upon by a coolant. Specifically, the cooling plates 200, 300 act on the at least one battery B during operation and are configured to exchange heat with the at least one battery B. More specifically, the cooling plates 200, 300 are configured to absorb heat from the at least one battery B, thereby cooling it.

[0245] As shown, the cooling system S includes at least one sealing connector 100 similar to that described above. Specifically, the at least one sealing connector 100 is disposed between the at least two cooling plates 200, 300 and configured to allow fluid communication between the two adjacent cooling plates for coolant exchange. It should be noted that... Figure 21-23 The cooling system S shown is... Figure 24-26 The cooling system S shown differs in the embodiment using the sealed connector 100. Specifically, Figure 21-23 The cooling system uses two Figure 1-10 The sealed connector 100 of the illustrated embodiment, while Figure 24-26 The cooling system uses two Figure 11-20 The sealed connector 100 of the illustrated embodiment.

[0246] like Figure 21 and Figure 24 As shown, the cooling system S includes a temperature and / or pressure handling device 400 for the coolant. Preferably, the temperature and / or pressure handling device 400 includes at least one of a compressor, an evaporator, a radiator, and / or an expander. Specifically, the temperature and / or pressure handling device 400 includes one or more components required for performing a thermal cycle on the coolant. Specifically, the temperature and / or pressure handling device 400 is configured to cool the coolant before it is returned to the cooling plates 200, 300 after heating.

[0247] Furthermore, the cooling system S includes a plurality of pipes 500 configured to connect the at least two cooling plates 200, 300 to the temperature and / or pressure handling device 400 to form a closed loop. Preferably, the cooling system S includes one or more pumps acting on the closed loop to circulate coolant.

[0248] like Figure 22-23 and Figure 25-26 As shown, each cooling plate 200, 300 includes an internal cavity 203, 303, meaning that each cooling plate has a hollow internal structure. This internal cavity 203, 303 is configured to be acted upon by the coolant.

[0249] The internal cavities 203, 303 are at least partially defined by heat exchange walls 204, 304. Specifically, the heat exchange walls 204, 304 are configured to transfer heat between the at least one battery B and the coolant.

[0250] As previously described, each cooling plate 200, 300 includes at least one inlet connector 201, 301 and at least one outlet connector 202, 303. The at least one inlet connector 201, 301 and the at least one outlet connector 202, 302 are in fluid communication with the internal cavities 203, 303.

[0251] like Figure 22-23 and Figure 25-26 As shown, the inlet connectors 201, 301 and the outlet connectors 202, 302 are configured to be received in the at least one sealed connector 100. Specifically, the inlet connectors 201, 301 and the outlet connectors 202, 302 are configured to be inserted into the first insertion interface 21 and / or the second insertion interface 22 of the sealed connector 100.

[0252] Specifically, the inlet connectors 201 and 301 are configured to receive the coolant at the inlet of the respective cooling plates 200 and 300 and deliver it to the internal cavities 203 and 303. From a substantially mirror-image perspective, the outlet connectors 202 and 302 are configured to receive the coolant from the internal cavities 203 and 303 and output the coolant from the respective cooling plates 200 and 300.

[0253] Preferably, the at least one inlet connector 201, 301 and the at least one outlet connector 202, 302 are in the form of a tubular structure.

[0254] Advantages of the invention Compared with the prior art, the present invention has significant technical advantages.

[0255] First, the sealing connector 100 according to the invention exhibits optimal behavior even when there is misalignment between the cooling plates it holds. As previously mentioned, the sealing connector 100 is able to compensate for misalignment between the cooling plates 200, 300 without affecting the sealing with the associated inlet and / or outlet joints. Specifically, the sealing connector 100 is able to compensate for misalignment of several millimeters (e.g., up to 3 millimeters) between the first axis A1 and the second axis A2 through plastic deformation of the inner sleeve 1 and relative movement between the housings of the housing 2.

[0256] Furthermore, the complete and hinged external envelope structure defined by the housing enables the sealed connector 100 to maintain a particularly robust structure even under excessive pressure. Specifically, the sealed connector 100 achieves results exceeding 8 bar (800 kPa) in burst tests.

[0257] Furthermore, the structure of the sealing lip 16 enables it to maintain a seal with the cooling plate under pressure conditions, from 3 bar (300 kPa) to 6 bar (600 kPa), as well as under vacuum conditions.

[0258] The sealing connector 100 according to the invention has a particularly robust structure because the contact with the cooling plate is not only borne by the inner sleeve. In fact, the ribs of the housing, especially the first and second outer shells, contact the connection surface, thereby providing better robustness to the sealing connector.

[0259] Furthermore, it should be noted that in the sealed connector according to the invention, the insertion of the cooling plate connection is performed at the housing, which defines two insertion interfaces. Due to this characteristic, the possibility of damage in the sealing area (i.e., the lips of the inner sleeve) is minimized, and these lips only serve to prevent coolant leakage.

[0260] Another advantage of the sealed connector 100 relates to the arrangement of at least one sealing lip. In fact, the area where the sealing lip is located is unaffected by plastic deformation of the inner sleeve. Figure 23 and Figure 26 As shown, the plastic deformation of the inner sleeve 1 mainly affects its central portion, where there is no sealing lip. Therefore, the movement required to compensate for any misalignment between the cooling plate connections held by the sealing connector will not affect the sealing area.

[0261] Furthermore, it should be noted that the coolant transferred between the cooling plates connected by the sealing connector 100 only comes into contact with the inner sleeve. In this sense, the coolant does not come into contact with the outer shell that constitutes the housing, which can be made of ordinary plastic materials. This, along with other structural features of the sealing connector 100, allows for control of production costs.

[0262] The designed sealing connector 100 has a simple, rational, and tribologically efficient structure. These characteristics give the sealing connector 100 high reliability and considerable durability.

[0263] Furthermore, as described above, the sealed connector 100 is characterized by its simple and intuitive installation.

Claims

1. A sealed connector (100) for two cooling plates (200, 300) of a cooling system (S) for at least one electrical / electronic component (B), characterized in that, The sealed connector (100) includes: - An inner sleeve (1) having a generally tubular structure about a longitudinal axis (Y) defines a channel (10) extending between a first opening (11) and a second opening (12), the channel (10) being configured for the transfer of coolant between the first opening (11) and the second opening (12); - A housing (2) that encloses the inner sleeve (1), the housing comprising at least two independent and movable outer shells (3, 4, 5) arranged in series along a longitudinal axis (Y), each of the at least two outer shells (3, 4, 5) enclosing a longitudinal portion of the inner sleeve (1) from the outside; In the sealed connector (1), the housing (2) forms a complete and hinged outer envelope structure of the sealed connector (100), and the housing (2) wraps the inner sleeve (1) from the outside along the longitudinal axis (Y) substantially over the entire longitudinal extension of the inner sleeve (1).

2. The sealed connector (100) according to claim 1, characterized in that, The inner sleeve (1) is made of a rubber-like material, preferably an elastic material; and / or the shell (2) is made of a plastic material; and / or the longitudinal extension length of the shell (2) along the longitudinal axis (Y) is greater than the longitudinal extension length of the inner sleeve (1); and / or the shell (2) extends longitudinally beyond the first opening (11) of the inner sleeve (1); and / or the shell (2) extends longitudinally beyond the second opening (12) of the inner sleeve (1).

3. The sealed connector (100) according to claim 1 or 2, characterized in that, The housing (2) defines a first insertion port (21) configured to insert a connector (201, 301) or an outlet connector (202, 302) of one of the two cooling plates (200, 300), the first insertion port being configured to insert a connector (201, 301) or an outlet connector (202, 302) along a first axis (A1); and / or the first axis (A1) in use coincides with the extension axis of the inlet connector (201, 301) or the outlet connector (202, 302); and / or the housing (2) defines a second insertion interface (22) configured to insert a connector (201, 301) or an outlet connector (202, 302) of one of the two cooling plates (200, 300), the second insertion interface being configured to insert a connector (201, 301) or an outlet connector (202, 302) along a second axis (A2); and / or the second axis (A2) in use coincides with the extension axis of the inlet connector (201, 301) or the outlet connector (202, 302).

4. The sealed connector (100) according to the preceding claim, characterized in that, The first axis (A1) and the second axis (A2) may coincide with each other, preferably with the longitudinal axis (Y), or may be different from each other; and / or the inner sleeve (1) is made of a flexible material to compensate for the difference between the first axis (A1) and the second axis (A2); and / or the housing (2) is configured to compensate for the difference between the first axis (A1) and the second axis (A2) and to keep the inner sleeve (1) completely contained therein; and / or the at least two outer shells (3, 4, 5) may move relative to each other and are configured to give the first axis (A1) and the second axis (A2) different orientations.

5. The sealed connector (100) according to any one of the preceding claims, characterized in that, The inner sleeve (1) includes a first end (13), a second end (14), and a central portion (15), the central portion (15) being located on a longitudinal axis (Y) between the first end (13) and the second end (14); and / or the first end (13) defines the first opening (11), and the second end (14) defines the second opening (12); and / or at least one sealing lip (16) is provided on the opposing inner surfaces of the first end (13) and the second end (14), the at least one sealing lip (16) being from the opposite... The inner surface protrudes toward the longitudinal axis (Y); and / or the at least one sealing lip (16) is configured to contact the inlet connector (201, 301) or the outlet connector (202, 302) and is configured to prevent the coolant from leaking between the inner sleeve (1) and the inlet connector (201, 301) or the outlet connector (202, 302); and / or the first end (13) and the second end (14) each include two sealing lips (16); and / or the at least one sealing lip (16) is tapered.

6. The sealed connector (100) according to the preceding claim, characterized in that, The inner sleeve (1) includes a first transition region and a second transition region, the first transition region being a contact area between a first end (13) and a central portion (15); the second transition region being a contact area between a second end (14) and the central portion (15); and / or the central portion (15) being configured as a contraction region of the inner sleeve (1); and / or the inner sleeve (1) having a first shoulder (17) on the opposite outer surface of the first transition region and a second shoulder (18) on the opposite outer surface of the second transition region.

7. The sealed connector (100) according to any one of the preceding claims, characterized in that, The at least two housings (3, 4, 5) include a first housing (3) and a second housing (4); and / or the first housing (3) and the second housing (4) are arranged in a mirror image with respect to the plane of symmetry (Z) of the sealing connector (100) in use; and / or the first housing (3) is configured to enclose the inner sleeve (1) at least at the first opening (11), and the second housing (4) is configured to enclose the inner sleeve (1) at least at the second opening (12); and / or the first housing (3) and the second housing (4) are substantially identical in structure; and / or the first housing (3) extends along the longitudinal axis (Y) between the first central end (31) and the first peripheral end (32) and defines the first insertion interface (21) at its first peripheral end (32).

8. The sealed connector (100) according to the preceding claim, characterized in that, The first housing (3) includes a first central portion (33) and a first peripheral portion (34) connected in series along the longitudinal axis (Y); the first central portion (33) defines a first central end (31), and the first peripheral portion (34) defines a first peripheral end (32); and / or the first housing (3) includes at least one first rib (35) extending from the inner surface of the first peripheral portion (34); and / or the first housing (3) includes at least one first flange (36) extending from the inner surface of the first central portion (33).

9. The sealed connector (100) according to the preceding claim, characterized in that, The at least one first rib (35) is generally located at the first peripheral end (32) and extends from the inner surface of the first housing (3) toward the longitudinal axis (Y); and / or the at least one first rib (35) is configured to guide the insertion of the inlet connector (201, 301) or the outlet connector (202, 302) of one of the two cooling plates (200, 300); and / or the at least one first rib (35) is configured to contact the inlet connector (201, 301) or the outlet connector (202, 302) in use; and / or the at least one first rib (35) is configured to abut against the inner sleeve (1) and prevent the inner sleeve (1) from sliding out of the first insertion port (21); and / or the first housing (3) includes a plurality of first ribs (35).

10. The sealed connector (100) according to claim 8 or 9, characterized in that, The at least one first flange (36) is located generally at the first central end (31) and extends from the inner surface of the first housing (3) toward the longitudinal axis (Y); and / or the at least one first flange (36) is tapered; and / or the at least one first flange (36) is complementary in shape to at least one longitudinal portion of the central portion (15) of the inner sleeve (1); and / or the at least one first flange (36) is configured to mate with the shape of at least one longitudinal portion of the central portion (15) of the inner sleeve (1); and / or the at least one first flange (36) has a shoulder (36A) at an end farther from the first central end (31), the shoulder (36A) being configured to abut against a first shoulder (17) of the inner sleeve (1); and / or the first housing (3) includes a plurality of first flanges (36).

11. The sealed connector (100) according to any one of claims 7 to 10, characterized in that, The central portion (15) of the inner sleeve (1) includes a generally tubular middle section (15A); and / or the at least two outer shells (3, 4, 5) include a third outer shell (5) disposed along the longitudinal axis (Y) between the first outer shell (3) and the second outer shell (4); and / or the third outer shell (5) is configured to at least partially enclose the central portion (15) of the inner sleeve (1); and / or the third outer shell (5) is co-molded with the inner sleeve (1).

12. A cooling system (S) for at least one electrical / electronic component (B), comprising: - At least two cooling plates (200, 300) arranged at intervals between each other for housing the at least one electrical / electronic component (B) in a space defined therebetween, the at least two cooling plates (200, 300) being configured to be acted upon by a coolant and to act on the at least one electrical / electronic component (B) during operation in order to exchange heat with the at least one electrical / electronic component (B); - At least one sealing connector (100) according to any one of the preceding claims, the at least one sealing connector (100) being located between the at least two cooling plates (200, 300), the sealing connector (100) providing fluid communication between the at least two cooling plates (200, 300) for the exchange of the coolant; - Temperature and / or pressure processing device (400), the temperature and / or pressure processing device (400) includes at least one of a compressor, an evaporator, a radiator and / or an expander; - Multiple pipes (500) are configured to connect the at least two cooling plates (200, 300) to the temperature and / or pressure handling device (400) to form a closed loop.

13. The cooling system (S) according to the preceding claim, characterized in that, Each cooling plate (200, 300) includes an internal cavity (203, 303) at least partially defined by a heat exchange wall (204, 304) and configured to be acted upon by the coolant; and / or each cooling plate (200, 300) includes at least one inlet connector (201, 301) and at least one outlet connector (202, 302) in fluid communication with the internal cavity (203, 303); and / or the at least one inlet connector (201, 301) and the at least one outlet connector (202, 302) are configured to be received in the at least one sealing connector (100).

14. A method for manufacturing a sealed connector (100) for two cooling plates (200, 300) of a cooling system (S) for at least one electrical / electronic component (B), the method comprising the steps of: - A flexible inner sleeve (1) is manufactured, which has a basically tubular structure about a longitudinal axis (Y), the inner sleeve (1) defining a channel (10) extending between a first opening (11) and a second opening (12), the channel (10) being configured for the transfer of coolant; - Use plastic materials to make at least two shells that are different from each other (3, 4, 5); - The at least two outer shells (3, 4, 5) are assembled around the inner sleeve (1) such that they are connected in series and substantially in contact along the longitudinal axis (Y) to form a housing (2) that defines the hinged outer envelope structure of the sealing connector (100) and wraps the inner sleeve (1) from the outside over the entire longitudinal extension of the inner sleeve (1) along the longitudinal axis (Y).

15. The manufacturing method according to the preceding claims, characterized in that, The step of manufacturing at least two outer shells (3, 4, 5) includes manufacturing a first outer shell (3) and a second outer shell (4) that are substantially identical to each other, and the step of assembling the at least two outer shells (3, 4, 5) around the inner sleeve (1) includes assembling the first outer shell (3) at the first opening (11) and assembling the second outer shell (4) at the second opening (12); and / or the step of manufacturing at least two outer shells (3, 4, 5) includes manufacturing a third outer shell (5) that, in use, is located between the first outer shell (3) and the second outer shell (4) along the longitudinal axis (Y); and / or the third outer shell (5) is co-molded with the inner sleeve (1).