Submerged liquid-cooled network cable with siphonage and capillary protection

The submerged liquid-cooled network cable with sealed assemblies and capillary protection assemblies addresses siphon and capillary issues, enhancing reliability and stability by preventing these phenomena, thus extending the network jumper's lifespan.

DE202025100670U1Active Publication Date: 2025-04-03JIANGSU HENGTONG WIRE & CABLE TECH
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Patent Information

Application Number
DE202025100670
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Priority Date
2024-09-25
Filing Date
2025-02-11
Publication Date
2025-04-03
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing submerged liquid-cooled network cables suffer from siphon and capillary effects, which affect the reliability and stability of data transmission, necessitating improved siphonage and capillary protection.

Method used

A submerged liquid-cooled network cable design featuring sealed waterproof assemblies, sealing rings, and capillary protection assemblies, along with specific materials like polytetrafluorethylene and polyimide films, to prevent siphonage and capillary phenomena.

Benefits of technology

The design enhances the lifespan and reliability of the network jumper by effectively preventing siphonage and capillary effects, improving the overall stability of the fluid cooling system.

✦ Generated by Eureka AI based on patent content.

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Abstract

Submerged liquid-cooled network cable with siphonage and capillary protection, comprising a cable body (1), characterized in that both ends of the cable body (1) are positioned with sealed waterproofing assemblies (2), wherein a cable connector (4) is positioned on the outside of the sealed waterproofing assembly (2), wherein a sealing ring body (3) and a sealing washer (8) are positioned between the sealed waterproofing assembly (2) and the cable connector (4), wherein a spiral connector (7) is integrally formed on the outer wall of the cable connector (4), wherein a sealing connection opening (5) is provided inside the cable connector (4), and wherein a sealing ring (6) is positioned at the ends of the cable connector (4).
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Description

Technical field

[0001] The utility model relates to the technical field of submerged liquid-cooled network cables, in particular to a submerged liquid-cooled network cable with siphonage and capillary protection. Background technology

[0002] Submerged liquid-cooled network cables are data transmission cables with efficient heat dissipation. Submerged liquid cooling technology is an innovative heat dissipation method. By fully immersing electronic devices in a highly thermally conductive medium, efficient heat dissipation is achieved. Compared to conventional air cooling, liquid cooling technology offers higher heat dissipation efficiency and can solve the heat dissipation problems of high-performance electronic devices. This technology is widely used in high-performance computers, data centers, artificial intelligence applications, and other fields. With the continuous development of the technology, there are ever-increasing demands on the manufacturing process of submerged liquid-cooled network cables.

[0003] State-of-the-art submerged liquid-cooled network cables have certain disadvantages in their use. Firstly, these cables exhibit siphoning and capillary action, which is not well-suited to the specific liquid-cooled environment. This results in poor data transmission reliability and stability. Siphoning and capillary action is a phenomenon where the liquid automatically rises or falls within the capillary, which can affect the network jumper in the liquid-cooled system. Siphoning and capillary protection is crucial to safeguard the network jumper from liquid wear and ensure stable data transmission. Therefore, we propose a submerged liquid-cooled network cable with integrated siphoning and capillary protection, along with its manufacturing process. Content of the utility model

[0004] Technical problems solved: In view of the shortcomings of the prior art, this utility model offers a submerged liquid-cooled network cable with siphonage and capillary protection, optimizes the design of the submerged liquid-cooled network jumper to improve its siphonage and capillary protection performance, changes the fit of the connector and takes into account the changes in the protection mode of the board end and wire end to achieve siphonage and capillary protection and effectively solve the problems of the prior art.

[0005] Technical solution: To achieve the above-mentioned purposes, the technical solution of the utility model is: Submerged liquid-cooled network cable with siphonage and capillary protection, comprising a cable body, characterized in that both ends of the cable body are positioned with sealed waterproofing assemblies, wherein a cable connector is positioned on the outside of the sealed waterproofing assembly, wherein a sealing ring body and a sealing disc are positioned between the sealed waterproofing assembly and the cable connector, wherein a spiral connector is integrally formed on the outer wall of the cable connector, wherein a sealing connection opening is provided inside the cable connector, and wherein a sealing ring is positioned at the ends of the cable connector.

[0006] As a preferred technical solution of the present application, capillary protection assemblies are positioned at both ends of the cable body within the sealed waterproofing assembly, wherein a sealing adhesive film is positioned between the capillary protection assembly and the sealing adhesive film, wherein the inside of the capillary protection assembly is provided with a barrier membrane.

[0007] As a preferred technical solution of the present application, the cable body comprises a cable core, a waterproofing membrane made of polytetrafluoroethylene, a cold-resistant polyimide film, an age-resistant film and an oil-resistant insulating sheath, wherein the waterproofing membrane made of polytetrafluoroethylene is arranged on the outer wall of the cable core, wherein the cold-resistant polyimide film is arranged on the outer wall of the waterproofing membrane made of polytetrafluoroethylene, wherein the age-resistant film is arranged on the outer wall of the cold-resistant polyimide film, and wherein the oil-resistant insulating sheath is arranged on the outer wall of the age-resistant film.

[0008] As a preferred technical solution of the present application, both ends of the cable body are connected by a cable connector, wherein the cable connector and the sealed waterproofing assembly are sealed by a sealing ring body and a sealing disc, wherein the outer connecting section of the cable connector is sealed by a sealing ring.

[0009] As a preferred technical solution of the present application, a sealing positioning between the cable body and the capillary protection assembly is achieved by means of a sealing adhesive film, wherein the inside of the capillary protection assembly and the barrier membrane are bonded and positioned, wherein the position of the barrier membrane is watertight and sealed.

[0010] As a preferred technical solution of the present application, the cable core, waterproofing film made of polytetrafluoroethylene, a cold-resistant polyimide film, an age-resistant film and an oil-resistant insulating sheath are formed in one piece by injection molding.

[0011] Advantageous effects: Compared to the prior art, the utility model offers a submerged liquid-cooled network cable with siphonage and capillary protection, as well as its manufacturing process, which has the following advantageous effects: The submerged liquid-cooled network cable with siphonage and capillary protection, as well as its manufacturing process, optimizes the design of the submerged liquid-cooled network jumper to improve its siphonage and capillary protection performance, modifies the fit of the connector, and simultaneously takes into account the changes in protection mode from the board end and wire end.to achieve siphonage and capillary protection. By avoiding these two effects, the service life of the network jumper can be extended and the reliability of the entire liquid cooling system improved. Refrigerant composition analysis: Analyzing the composition of the common insulating cooling oil and identifying the composition of the cooling oil; Wire base material screening: Based on the cooling oil composition, the appropriate base material is selected and modified and processed; Wire base material testing: Thermal aging testing is performed on the selected base material as well as the modified base material; Wire base material selection: In conjunction with the test results, material costs, and processing methods, a multidimensional selection is made.To determine the final wire base material; eliminating siphoning and capillary action; at the final distribution point of the submerged liquid cooling system in the data center, a universal special cable with cooling oil is inserted, with the end component equipped with siphon protection; the material is screened and replaced to prevent capillary action. Thus, a universal special power cable harness for the submerged liquid cooling system in the data center is prepared. The entire network cable for the submerged liquid cooling system is simple in design, easy to use, and performs better than conventional methods. Illustration of the attached drawings Fig. Figure 1 is a schematic representation of the overall structure of the utility model of a submerged liquid-cooled network cable with siphonage and capillary protection and manufacturing process. Fig. Figure 2 is a schematic representation of the structure of a capillary protection assembly of a submerged liquid-cooled network cable with siphonage and capillary protection and manufacturing process. Fig. Figure 3 is a schematic representation of the structure of a cable body of a submerged liquid-cooled network cable with siphonage and capillary protection and manufacturing process.

[0012] In the figures: 1, cable body; 2, sealed waterproofing assembly; 3, sealing ring body; 4, cable connector; 5, sealing connection opening; 6, sealing ring; 7, spiral connector; 8, sealing washer; 9, capillary protection assembly; 10, barrier membrane; 11, sealing adhesive film; 12, cable core; 13, polytetrafluoroethylene waterproofing film; 14, cold-resistant polyimide film; 15, age-resistant film; 16, oil-resistant insulating sheath. Specific embodiments

[0013] The technical solutions of the utility model are clearly and completely described below in conjunction with the accompanying drawings and specific embodiments. However, the person skilled in the art will understand that the embodiments described below are part of the embodiments of the utility model, not all embodiments, and are used only to illustrate the utility model and should not be considered as limiting its scope. Starting from the embodiments of the present utility model, all other embodiments that a person skilled in the art can achieve without inventive work fall within the scope of protection of the present utility model. If the specific conditions in the examples are not specified, they must be carried out in accordance with usual conditions or those recommended by the manufacturer.Reagents or instruments used that do not specify the manufacturer are conventional products that can be purchased commercially.

[0014] When describing the utility model, it should be noted that the terms "center," "top," "bottom," "left," "right," "vertical," "horizontal," "inside," "outside," etc., refer to orientations or positions shown in the accompanying drawings or to the orientations or positions in which the subject matter of the application is typically arranged in use. These terms serve only to facilitate and simplify the description of the application and are not intended to indicate or imply that the arrangement or component referred to has a specific orientation or must be constructed and operated in a particular manner. Therefore, they are not to be understood as limiting the utility model. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be interpreted as indicating or implying any relative meaning.

[0015] When describing the utility model, it should be noted that, unless expressly stated and defined otherwise, the terms "installation," "connection," and "connection" are to be understood in a broad sense. For example, they may refer to a permanent connection, a detachable connection, or a bonded connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection via an intermediate medium; and they may refer to communication between two components. For a person skilled in the art, the specific meaning of the aforementioned terms in the context of the utility model is readily apparent in each individual case.

[0016] As in Fig.Figures 1-3 disclose a submerged liquid-cooled network cable with siphonage and capillary protection, comprising a cable body 1, wherein both ends of the cable body 1 are positioned with sealed waterproofing assemblies 2, wherein a cable connector 4 is positioned on the outside of the sealed waterproofing assembly 2, wherein a sealing ring body 3 and a sealing washer 8 are positioned between the sealed waterproofing assembly 2 and the cable connector 4, wherein a spiral connector 7 is integrally formed on the outer wall of the cable connector 4, wherein a sealing connection opening 5 is provided inside the cable connector 4, and wherein a sealing ring 6 is positioned at the ends of the cable connector 4.It optimizes the design of the submerged liquid-cooled network jumper to improve its siphonage and capillary protection performance, changes the fit of the connector, and also takes into account the changes in protection mode from the board end and wire end to achieve the siphonage and capillary protection effect.

[0017] Furthermore, capillary protection assemblies 9 are positioned at both ends of the cable body 1 inside the sealed waterproofing assembly 2, wherein a sealing adhesive film 11 is positioned between the capillary protection assembly 9 and the sealing adhesive film 11, wherein the inside of the capillary protection assembly 9 is provided with a barrier membrane 10.

[0018] Furthermore, the cable body 1 comprises a cable core 12, a waterproofing film made of polytetrafluoroethylene 13, a cold-resistant polyimide film 14, an age-resistant film 15 and an oil-resistant insulating sheath 16, wherein the waterproofing film made of polytetrafluoroethylene 13 is arranged on the outer wall of the cable core 12, wherein the cold-resistant polyimide film 14 is arranged on the outer wall of the waterproofing film made of polytetrafluoroethylene 13, wherein the age-resistant film 15 is arranged on the outer wall of the cold-resistant polyimide film 14, and wherein the oil-resistant insulating sheath 16 is arranged on the outer wall of the age-resistant film 15.

[0019] Furthermore, both ends of the cable body 1 are connected by a cable connector 4, wherein the cable connector 4 and the sealed waterproofing assembly 2 are sealed by a sealing ring body 3 and a sealing washer 8, wherein the outer connecting section of the cable connector 4 is sealed by a sealing ring 6.

[0020] Furthermore, a sealing positioning between the cable body 1 and the capillary protection assembly 9 is achieved by means of a sealing adhesive film 11, wherein the inside of the capillary protection assembly 9 and the barrier membrane 10 are glued and positioned, wherein the position of the barrier membrane 10 is watertight and sealed.

[0021] Furthermore, the cable core 12, waterproofing film made of polytetrafluoroethylene 13, a cold-resistant polyimide film 14, an age-resistant film 15 and an oil-resistant insulating sheath 16 are formed in one piece by injection molding.

[0022] Manufacturing process for submerged liquid-cooled network cable with siphonage and capillary protection, comprising the following operational steps: S1: Analysis of the refrigerant composition: Analyzing the composition of common insulating cooling oil and identifying the composition of the cooling oil; S2: Screening of the wire base material: With regard to the composition of the cooling oil, the suitable base material is selected and the base material is modified and processed; S3: Testing of the wire base material: A thermal aging test is performed on the selected base material as well as the modified base material; S4: Determination of the wire base material: In conjunction with the test results, material costs, and processing methods, a multidimensional selection process is used to make the final determination of the wire base material; S5: Elimination of siphoning and capillary action; During the final distribution of the submerged liquid cooling system in the data center, a universal special cable with cooling oil is inserted, with the end component being provided with siphon protection; The material is screened and replaced to prevent capillary action. Thus, a universal special power cable harness for the submerged liquid cooling system in the data center is prepared.

[0023] Furthermore, in step S5, siphon and capillary tests, thermal lifetime tests, electrical performance tests and flame-retardant performance evaluation tests are carried out on the prepared universal special power cable harness for submerged liquid cooling system in the data center. Example implementation:

[0024] The purpose of siphon protection is to prevent liquid backflow caused by negative pressure. In a liquid-cooled system, if the negative pressure inside the piping is greater than outside, the surrounding liquid can be drawn into the piping, potentially leading to contamination or damage to the equipment. Therefore, measures must be taken to prevent siphoning.

[0025] The experiment employs a variety of measures to prevent siphoning, including, but not limited to, high-pressure injection molding, the use of oil-resistant polyurethane AB liquid adhesive, and the use of a connection method with a circular connector-like waterproof crystal head to replace the circuit board end. These measures are intended to prevent siphoning through various mechanisms.

[0026] Capillary action refers to the phenomenon of liquid rising or falling in a thin pipe, and the principle is related to the surface tension of the liquid and the adhesion of the pipe wall to the liquid. In submerged liquid cooling systems, capillary action can affect the flow and distribution of liquids, so it must be investigated and capillary action taken outside the pipe.

[0027] The capillary phenomenon is influenced by a variety of factors, including the type of fluid (such as surface tension, density, viscosity, etc.), the material and roughness of the pipe wall, the temperature, and the pipe diameter. In the experiment, an inverted funnel-shaped SR (striking test) is performed on the outside of the wire to block the flow. Experimental equipment

[0028] The appropriate test materials and equipment are selected and a test platform is set up to ensure that the test conditions meet the requirements. Experimental procedures

[0029] The process follows a pre-set test program that includes liquid injection, temperature control, and variable settings. Important data, such as the height and time it takes for the liquid to rise or fall, are also recorded during the test. Reproducibility and comparison of the experiment

[0030] To ensure the reliability of the test results, it is necessary to repeatedly test the same test conditions and to compare and analyze the test results under different conditions. Data collection

[0031] During the experiment, data from comparative trials are collected regularly, and the most important data are recorded in real time. This data includes, among other things, the height and the time of the liquid's ascent or descent. Data analysis methods

[0032] The collected data are sorted and analyzed. By comparing and analyzing the test results under different conditions, the effects on siphonage and capillary protection in the submerged liquid cooling system and their optimization schemes are determined. Design optimization for siphon protection

[0033] Measures such as improving the design of the jumper interface and adding a siphon protection structure effectively prevent siphoning. Simultaneously, the cable's outer sheath is made of siphon protection materials to further reduce the risk of siphoning. Suppression measures for the capillary phenomenon

[0034] The inside of the cable is treated with a special process to prevent coolant ingress; the external installation of an inverted funnel-shaped expansion joint reduces capillary action and prevents coolant from rising. Furthermore, the coolant is changed regularly to maintain its cleanliness and reduce the likelihood of capillary action. Improvement of the control and monitoring technology of the experimental environment

[0035] Equivalent, alternative, and other methods are employed to improve monitoring technology and ensure the accuracy of the test data. Simultaneously, regular monitoring of the cable condition is implemented to further enhance the accuracy of the test data.

[0036] It optimizes the design of the submerged liquid-cooled network jumper to improve its siphonage and capillary protection performance, modifies the connector's fit, and simultaneously considers the changes in protection mode between the board end and wire end to achieve the desired siphonage and capillary protection effect. By preventing these two phenomena, the lifespan of the network jumper can be extended and the reliability of the entire liquid cooling system improved.

[0037] Functional principle: The utility model comprises a cable body 1, a sealed waterproofing assembly 2, a sealing ring body 3, a cable connector 4, a sealing connection opening 5, a sealing ring 6, a spiral connector 7, a sealing washer 8, a capillary protection assembly 9, a barrier membrane 10, a sealing adhesive film 11, a cable core 12, a waterproofing film made of polytetrafluoroethylene 13, a cold-resistant polyimide film 14, an age-resistant film 15, an oil-resistant insulating sheath 16, analysis of the composition of common insulating cooling oil and identification of the composition of the cooling oil; screening of the wire base material: with regard to the composition of the cooling oil, the suitable base material is selected and the base material is modified and processed; testing of the wire base material: a thermal aging test is carried out on the selected base material as well as the modified base material;Determination of the wire base material: In conjunction with the test results, material costs, and processing methods, a multidimensional selection process is used to determine the final wire base material; elimination of siphoning and capillary action; at the final distribution point of the submerged liquid cooling system in the data center, a universal special cable with cooling oil is inserted, with the end component provided with siphon protection;The material is screened and replaced to prevent capillary action. This prepares a universal, specialized power cable harness for submerged liquid cooling systems in data centers. It optimizes the design of the submerged liquid-cooled network jumper to improve its siphonage and capillary protection performance, modifies the connector fit, and takes into account changes in the protection mode from the board end and wire end to achieve the siphonage and capillary protection effect.

[0038] It should be noted that in this context, relational terms such as first and second (No. I, No. II), etc., are used only to distinguish one object or process from another, without necessarily requiring or implying that any such actual relationship or order exists between these objects or processes. Furthermore, the term "includes," "contains," or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, procedure, article, or device comprising a set of elements includes not only those elements but also other elements not expressly listed or inherent in such process, procedure, article, or device. In the absence of further limitations, elements included by the statement "comprising a set of elements" include...“defined, the presence of additional identical elements in the process, method, article or apparatus comprising the elements is not excluded.

[0039] The above demonstrates and describes the basic principles, main features, and advantages of the utility model. Technical personnel in industry should understand that the utility model is not limited by the embodiment mentioned above. The aforementioned embodiment and the description in the description merely illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will incorporate various modifications and improvements, and these modifications and improvements fall within the scope of the utility model requiring protection.

[0040] The utility model discloses a submerged liquid-cooled network cable with siphonage and capillary protection, comprising a cable body, wherein both ends of the cable body are positioned with sealed waterproofing assemblies, wherein a cable connector is positioned on the outside of the sealed waterproofing assembly, wherein a sealing ring body and a sealing disc are positioned between the sealed waterproofing assembly and the cable connector, wherein a spiral connector is integrally formed on the outer wall of the cable connector, wherein a sealing connection opening is provided inside the cable connector, wherein a sealing ring is positioned at the ends of the cable connector, and capillary protection assemblies are positioned at both ends of the cable body within the sealed waterproofing assembly.The utility model describes a submerged liquid-cooled network cable with siphonage and capillary protection and its manufacturing process, optimizes the design of the submerged liquid-cooled network jumper to improve its siphonage and capillary protection performance, changes the fit of the connector and takes into account the changes in the protection mode of the board end and wire end to achieve the siphonage and capillary protection effect.

Claims

[1] Submerged liquid-cooled network cable with siphonage and capillary protection, comprising a cable body (1), characterized by that both ends of the cable body (1) are positioned with sealed water seal assemblies (2), wherein a cable connector (4) is positioned on the outside of the sealed water seal assembly (2), wherein a sealing ring body (3) and a sealing washer (8) are positioned between the sealed water seal assembly (2) and the cable connector (4), wherein a spiral connector (7) is integrally formed on the outer wall of the cable connector (4), wherein a sealing connection opening (5) is provided inside the cable connector (4), wherein a sealing ring (6) is positioned at the ends of the cable connector (4). [2] Submerged liquid-cooled network cable with siphonage and capillary protection according to claim 1, characterized bythat capillary protection assemblies (9) are positioned at both ends of the cable body (1) within the sealed water seal assembly (2), wherein a sealing adhesive film (11) is positioned between the capillary protection assembly (9) and the sealing adhesive film (11), wherein the inside of the capillary protection assembly (9) is provided with a barrier membrane (10). [3] Submerged liquid-cooled network cable with siphonage and capillary protection according to claim 1, characterized byin that the cable body (1) comprises a cable core (12), a waterproofing film made of polytetrafluoroethylene (13), a cold-resistant polyimide film (14), an ageing-resistant film (15) and an oil-resistant insulating sheath (16), wherein the waterproofing film made of polytetrafluoroethylene (13) is arranged on the outer wall of the cable core (12), wherein the cold-resistant polyimide film (14) is arranged on the outer wall of the waterproofing film made of polytetrafluoroethylene (13), wherein the ageing-resistant film (15) is arranged on the outer wall of the cold-resistant polyimide film (14), wherein the oil-resistant insulating sheath (16) is arranged on the outer wall of the ageing-resistant film (15). [4] Submerged liquid-cooled network cable with siphonage and capillary protection according to claim 1, characterized bythat both ends of the cable body (1) are connected by a cable connector (4), wherein the cable connector (4) and the sealed water seal assembly (2) are sealed by a sealing ring body (3) and a sealing washer (8), wherein the outer connecting portion of the cable connector (4) is sealed by a sealing ring (6). [5] Submerged liquid-cooled network cable with siphonage and capillary protection according to claim 2, characterized by that a sealing positioning between the cable body (1) and the capillary protection assembly (9) is carried out by a sealing adhesive film (11), wherein the inside of the capillary protection assembly (9) and the barrier membrane (10) are glued and positioned, wherein the position of the barrier membrane (10) is watertight and sealed. [6] Submerged liquid-cooled network cable with siphonage and capillary protection according to claim 3, characterized bythat the cable core (12), waterproofing film made of polytetrafluoroethylene (13), a cold-resistant polyimide film (14), an ageing-resistant film (15) and an oil-resistant insulating sheath (16) are formed in one piece by injection molding.