Intelligent cable with liquid cooling heat dissipation function

Abstract

The invention discloses an intelligent cable with a liquid cooling heat dissipation function. The intelligent cable comprises a closed cable section, an input cable section, an output cable section and a liquid cooling control device, the closed cable section is a completely-sealed cable section and is mainly used for liquid cooling heat dissipation of the cable; the input cable section is mainly used for transition connection between a power supply end and the closed cable section; the output cable section is mainly used for transition connection between the closed cable section and a power utilization end; and the liquid cooling control device is mainly used for promoting heat dissipation at the closed cable section and is detachably mounted at the junction of the closed cable section and the input cable section. Therefore, temperature rise of the cable is effectively reduced, the cable adapts to high-load power transmission, flexibility is not affected, insulation fault risks are reduced, accurate heat dissipation and energy conservation can be achieved, the service life of the cable is prolonged, and the method is superior to a traditional heat dissipation mode without intelligent regulation and control.

Description

Technical Field

[0001] The present invention relates to the technical field of cable heat dissipation, and in particular to an intelligent cable with liquid cooling. Background Art

[0002] In today's power transmission field, cables play an extremely critical role. As the demand for electricity increases, the current carrying capacity of cables increases, and heat dissipation becomes a problem that needs to be solved urgently.

[0003] Existing cable heat dissipation solutions mainly include: natural air heat dissipation, forced air cooling and heat dissipation with thermal conductive materials. First, natural heat dissipation relies on heat exchange between cables and air, which is inefficient. In cable-dense or closed environments, heat is easily accumulated, causing the cable temperature to rise quickly, affecting the current carrying capacity and life, and even causing insulation breakdown failures; second, although forced air cooling has improved the situation, the equipment is energy-consuming, and in harsh environments such as dusty and humid places, dust and water vapor affect heat dissipation, which may also cause safety accidents, and the heat dissipation capacity is difficult to meet the needs of high-load cables; third, heat dissipation with thermal conductive materials is limited by the thermal conductivity and contact thermal resistance of the material. The material properties change under long-term high temperatures, and the heat dissipation efficiency decreases.

[0004] In view of the defects of the above-mentioned non-liquid cooling solutions, there is an urgent need for a highly efficient liquid cooling method to overcome the insufficient heat dissipation of existing cables, provide a reliable solution for efficient heat dissipation and stable operation of cables, and meet the development requirements of modern power systems.

[0005] In the prior art, the disclosed invention patent, patent number: 202410618015.8, patent name "Liquid Cooling and Heat Dissipation Cable" invention patent, discloses a liquid cooling and heat dissipation technology, and its specific technology is: at least two liquid cooling and heat dissipation spiral metal transmission copper cable structures are provided in the cable, and the liquid cooling and heat dissipation spiral metal transmission copper cable structure includes a spiral metal tube, a copper cable layer and an insulating layer. During specific use, due to the close contact between the spiral metal tube and the copper cable layer, the heat generated by the copper cable layer is transferred to the liquid cooling oil by the spiral metal tube. Due to the rapid flow of the liquid cooling oil, the heat generated everywhere is quickly brought out of the cable, thereby achieving the purpose of cooling and heat dissipation.

[0006] However, the invention patent with the patent number: 202410618015.8 and the patent name “Liquid Cooling Cable” has the following shortcomings: (1) Adding two spiral metal tubes to the cable will increase the material cost and transportation cost of the cable, and also sacrifice the flexibility of the cable; (2) The heat generated by the copper cable layer can only be partially conducted from the tightly contacted spiral metal tube to the liquid cooling oil inside the tube and dissipated. Most of the heat does not contact the spiral metal tube and cannot be dissipated, resulting in low heat dissipation efficiency. Summary of the invention

[0007] In response to the above technical problems, the present invention proposes an intelligent cable with liquid cooling and heat dissipation, which can improve liquid cooling and heat dissipation while avoiding the increase of material cost and transportation cost, and will not sacrifice the flexibility of the cable.

[0008] The technical solution used in the present invention is: an intelligent cable with liquid cooling and heat dissipation, comprising a closed cable segment, an input cable segment, an output cable segment and a liquid cooling control device; the closed cable segment is a completely sealed cable segment, mainly used for liquid cooling and heat dissipation of the cable; the input cable segment is mainly used for the transition connection between the power supply end and the closed cable segment, the first end of the input cable segment is connected to the power supply end, and the second end of the input cable segment is connected to the first end of the closed cable segment; the output cable segment is mainly used for the transition connection between the closed cable segment and the power consumption end, the first end of the output cable segment is connected to the power consumption end, and the second end of the output cable segment is connected to the second end of the closed cable segment; the liquid cooling control device is mainly used to promote heat dissipation in the closed cable segment; the liquid cooling control device is detachably installed at the junction of the closed cable segment and the input cable segment.

[0009] Furthermore, the enclosed cable segment, the input cable segment and the output cable segment are an integrally formed cable structure.

[0010] Furthermore, the enclosed cable segment, the input cable segment and the output cable segment also include a cable outer shell, a cable inner shell, a live cable and a neutral cable; the live cable and the neutral cable are arranged inside the cable inner shell; the cable inner shell is arranged inside the cable outer shell; In the input cable segment and the output cable segment, a solid insulating material is filled between the cable inner shell and the cable outer shell; In the input cable section and the output cable section, solid insulating material is filled between the live cable and the neutral cable and the cable casing.

[0011] Furthermore, in the enclosed cable segment, the input cable segment and the output cable segment, the live cable further comprises a live conductor and a live protective shell; the neutral cable further comprises a neutral conductor and a neutral protective shell.

[0012] Furthermore, the enclosed cable segment also includes a plurality of annular heat sinks, an outer shell cavity and an inner shell cavity; the plurality of annular heat sinks are used for heat dissipation of the enclosed cable segment; the outer shell cavity is arranged between the cable outer shell and the cable inner shell, and the outer shell cavity is filled with insulating liquid cooling oil; the inner shell cavity is arranged in the cable inner shell, and the inner shell cavity is filled with insulating liquid cooling oil; the size of the plurality of annular heat sinks is consistent with the cross-sectional size of the cable outer shell; the plurality of annular heat sinks are evenly embedded in the cable outer shell at a certain distance.

[0013] Furthermore, the dimensions of the plurality of annular heat sinks are consistent with the cross-sectional dimensions of the cable housing; the plurality of annular heat sinks are evenly embedded in the cable housing at a certain interval.

[0014] Furthermore, the cable inner shell also includes a single-turn full through hole and a single-turn one-way through hole; the single-turn full through hole is used to penetrate the outer shell cavity and the inner shell cavity to achieve flow exchange of the insulating liquid cooling oil in the outer shell cavity and the insulating liquid cooling oil in the inner shell cavity; the single-turn one-way through hole is used for one-way penetration of the outer shell cavity to the inner shell cavity to achieve flow of the insulating liquid cooling oil in the outer shell cavity to the inner shell cavity.

[0015] Furthermore, the single-turn full through hole is arranged on the first end side of the cable inner shell; the single-turn unidirectional through hole is arranged on the second end side of the cable inner shell; the first end side of the cable inner shell is close to one end of the input cable segment; the second end side of the cable inner shell is close to one end of the output cable segment.

[0016] Furthermore, the single circle of complete through holes is composed of 6 complete through holes; the single circle of unidirectional through holes is composed of 6 unidirectional through holes.

[0017] Furthermore, the liquid cooling control device also includes a main control unit, an AC / DC unit, a switch MOS tube, an electric pump and a temperature sensor; the input end of the AC / DC unit is connected to the live wire conductor in the input cable segment; the first output end of the AC / DC unit is connected to the first input end of the main control unit; the second output end of the AC / DC unit is connected to the input end of the switch MOS tube; the second input end of the main control unit is connected to the temperature sensor; the output end of the main control unit is connected to the control end of the switch MOS tube; the output end of the switch MOS tube is connected to the electric pump; and the temperature sensor is arranged in the inner shell cavity through the single-turn complete through hole.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1) The unique liquid cooling structure combined with the annular heat sink has a heat dissipation efficiency far exceeding the existing natural heat dissipation, forced air cooling and other methods, effectively reducing the temperature rise of the cable and adapting to high-load power transmission; 2) Liquid cooling is only provided in the enclosed section, which reduces material and transportation costs without affecting flexibility, overcoming the existing problems of increasing costs and sacrificing flexibility by adding heat dissipation components; 3) Reasonable selection of the outer shell, inner shell and filling materials enhances the electrical insulation performance, ensures the safety of the cable in complex environments, and reduces the risk of insulation failure; 4) The liquid cooling control device can intelligently control the electric pump according to the temperature, realize precise heat dissipation, save energy and extend the life of the cable, which is superior to the traditional heat dissipation method without intelligent regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an architecture diagram of an intelligent cable system with liquid cooling according to the present invention.

[0020] Figure 2 This is a detailed diagram showing the first type of intelligent cable with liquid cooling according to the present invention.

[0021] Figure 3 It is a cross-sectional structural diagram of the input cable segment and the output cable segment of the present invention.

[0022] Figure 4 It is a cross-sectional structural diagram of the annular heat sink of the present invention.

[0023] Figure 5 It is a cross-sectional view showing a first sealed cable segment with an annular heat sink according to the present invention.

[0024] Figure 6 It is a cross-sectional view showing a second sealed cable segment with an annular heat sink according to the present invention.

[0025] Figure 7 It is a cross-sectional view showing a third sealed cable segment with an annular heat sink according to the present invention.

[0026] Figure 8 This is a detailed diagram showing the second type of intelligent cable with liquid cooling according to the present invention.

[0027] Fig. 9 The figure is a schematic diagram of the flow direction of the insulating liquid cooling oil between the outer shell cavity and the inner shell cavity of the present invention.

[0028] Fig.10 It is a schematic diagram of the principle of the liquid cooling control device of the present invention.

[0029] Figure markings: Example: 100-enclosed cable segment; 200-input cable segment; 300-output cable segment; 400-liquid cooling control device; 101-annular heat sink; 102-cable outer shell, 103-cable inner shell, 104-live cable; 105-neutral cable; 106-outer shell cavity; 107-inner shell cavity; 1031-complete through hole; 1032-one-way through hole; 1041-live conductor; 1042-live protective shell; 1051-neutral conductor; 1052-neutral protective shell; 401-main control unit; 402-AC / DC unit; 403-switch MOS tube; 404-electric pump 405-temperature sensor. DETAILED DESCRIPTION

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0034] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The present invention will be specifically described below in conjunction with the accompanying drawings: A smart cable with liquid cooling, such as Figure 1 As shown, it includes a closed cable segment 100 , an input cable segment 200 , an output cable segment 300 and a liquid cooling control device 400 .

[0035] The enclosed cable segment 100 is a completely sealed cable segment, and is mainly used for liquid cooling of the cable.

[0036] The input cable segment 200 is mainly used for transition connection between the power supply end and the enclosed cable segment 100 . The first end of the input cable segment 200 is connected to the power supply end, and the second end of the input cable segment 200 is connected to the first end of the enclosed cable segment 100 .

[0037] The output cable segment 300 is mainly used for transition connection between the enclosed cable segment 100 and the power consumption end. The first end of the output cable segment 300 is connected to the power consumption end, and the second end of the output cable segment 300 is connected to the second end of the enclosed cable segment 100.

[0038] The liquid cooling control device 400 is mainly used to promote heat dissipation in the enclosed cable segment 100 .

[0039] It should be noted that the enclosed cable segment 100 , the input cable segment 200 and the output cable segment 300 are an integrally formed cable structure.

[0040] It should be noted that the liquid cooling control device 400 is detachably installed at the junction of the enclosed cable segment 100 and the input cable segment 200 .

[0041] like Figure 3 As shown, a cross-sectional structure diagram of the enclosed cable segment 100, the input cable segment 200 and the output cable segment 300 is displayed; the enclosed cable segment 100, the input cable segment 200 and the output cable segment 300 also include a cable outer shell 102, a cable inner shell 103, a live wire cable 104 and a neutral wire cable 105.

[0042] The live wire cable 104 and the neutral wire cable 105 are arranged inside the cable inner shell 103 .

[0043] The cable inner shell 103 is arranged inside the cable outer shell 102 .

[0044] In the input cable segment 200 and the output cable segment 300 , solid insulating material is filled between the cable inner shell 103 and the cable outer shell 102 .

[0045] In the input cable segment 200 and the output cable segment 300 , solid insulating material is filled between the live cable 104 and the neutral cable 105 and the cable housing 102 .

[0046] It is understandable that the cable housing 102 is preferably made of polyvinyl chloride (PVC). The good mechanical properties of polyvinyl chloride can provide sufficient protection for the internal cable inner housing 103 and various cable structures to prevent them from being damaged by external physical factors such as extrusion and collision. Moreover, it has strong chemical corrosion resistance. Whether facing harsh external chemical environments such as acid rain and industrial chemical pollutants, or long-term contact with internal insulating liquid cooling oil, it can maintain stable chemical properties and will not easily cause chemical reactions to cause damage to the housing. At the same time, the cost of polyvinyl chloride materials is relatively low, and the cost can be effectively controlled in large-scale production applications.

[0047] It is understandable that the cable inner shell 103 can be made of cross-linked polyethylene (XLPE) material. The excellent electrical insulation performance of cross-linked polyethylene can well insulate the internal live cable 104 and neutral cable 105 to prevent leakage. Cross-linked polyethylene (XLPE) has good heat resistance. Even when the insulating liquid cooling oil absorbs a large amount of heat, it can maintain the stability of its physical and electrical properties, avoiding softening, deformation and other problems due to temperature increase. In addition, the cross-linked polyethylene material also has high toughness. During the installation or use of cable bending, twisting, etc., it can withstand a certain degree of deformation without breaking, thereby ensuring the integrity of the internal cable structure.

[0048] It is understandable that the solid insulating material between the live cable 104 and the neutral cable 105 and the cable housing 102, and the solid insulating material between the cable housing 102 and the cable inner housing 103, are mainly made of materials with high insulation strength, good heat resistance and chemical stability, such as cross-linked polyethylene, rubber, etc. These materials can not only maintain stable insulation performance under normal conditions, but also reliably play an insulating role when the cable generates heat during operation and faces the influence of complex environmental factors, so as to stabilize the long-term operation of the cable.

[0049] It should be noted that if Figure 3As shown, in the enclosed cable segment 100 , the input cable segment 200 and the output cable segment 300 , the live cable 104 further includes a live conductor 1041 and a live protective shell 1042 ; the neutral cable 105 further includes a neutral conductor 1051 and a neutral protective shell 1052 .

[0050] It can be understood that the input cable segment 200 and the output cable segment 300 designed in this way not only ensure the stable transmission of power at the input and output ends of the cable, but also lay a solid foundation for the realization of the liquid cooling function of the middle closed cable segment 100, so that the cable can effectively dissipate the heat generated when facing high-load power transmission, maintain a good working state, significantly improve the service life and reliability of the cable, and meet the stringent requirements of modern complex power transmission scenarios.

[0051] like Figure 1 and Figure 3 As shown, the enclosed cable segment 100 further includes a plurality of annular heat sinks 101 , an outer shell cavity 106 and an inner shell cavity 107 .

[0052] The plurality of annular heat sinks 101 are used for heat dissipation of the sealed cable segment 100 .

[0053] The shell cavity 106 is disposed between the cable outer shell 102 and the cable inner shell 103 , and the shell cavity 106 is filled with insulating liquid cooling oil.

[0054] The inner shell cavity 107 is disposed in the cable inner shell 103 , and the inner shell cavity 107 is filled with insulating liquid cooling oil.

[0055] It should be noted that the dimensions of the plurality of annular heat sinks 101 are consistent with the cross-sectional dimensions of the cable housing 102 .

[0056] It should be noted that if Figure 1 As shown, the plurality of annular heat sinks 101 are evenly embedded in the cable housing 102 at a certain distance.

[0057] It is understandable that the annular heat sink 101 is preferably made of aluminum alloy, which has the advantages of light weight, good thermal conductivity and strong corrosion resistance. Its light weight will not bring too much extra weight to the cable as a whole, which is conducive to the laying and installation of the cable; its excellent thermal conductivity can quickly diffuse the heat conducted by the insulating liquid cooling oil to improve the heat dissipation efficiency; and its good corrosion resistance ensures that it can maintain a stable structure and heat dissipation performance in a long-term complex use environment, such as humid, acidic and alkaline environments, thereby effectively ensuring the long-term reliable operation of the heat dissipation system of the closed cable segment 100, extending the service life of the cable, reducing the risk of cable failure caused by damage to the heat sink, and providing stable and safe protection for related power transmission or signal transmission.

[0058] It is understandable that the insulating liquid cooling oil is mainly a mixture of high-purity mineral oil and special insulating additives. Mineral oil has good thermal conductivity and chemical stability, and can quickly absorb the heat generated by the closed cable segment 100 during operation and evenly disperse the heat. The insulating additive further enhances the insulating properties of the liquid cooling oil, ensuring that it will not conduct electricity when it is in contact with conductive parts such as the live conductor 1041 and the neutral conductor 1051 for a long time, thereby ensuring the electrical safety of the entire closed cable segment 100.

[0059] It should be noted that if Figure 4 , which shows a cross-sectional structure diagram of an annular heat sink. Any of the plurality of annular heat sinks 101 is also provided with convex points that are evenly and symmetrically arranged.

[0060] The protrusions are arranged on the inner ring of the annular heat sink 101 and / or the outer ring of the annular heat sink 101 .

[0061] It is understandable that if Figure 5As shown, a cross-sectional view of a first type of enclosed cable segment 100 having an annular heat sink 101 is shown. The convex points evenly and symmetrically arranged on the inner ring or / and outer ring of the annular heat sink 101 can increase the surface area of ​​the annular heat sink 101, and can create more contact interfaces when in contact with the internal insulating liquid cooling oil or the external air. When in contact with the insulating liquid cooling oil, more contact points are conducive to more efficient conduction of heat from the liquid cooling oil to the heat sink; and when in contact with the external air, it can also speed up the rate at which heat is dissipated from the heat sink to the air. In addition, the evenly and symmetrical arrangement of the convex points helps to maintain the structural stability of the heat sink and the uniformity of heat conduction, avoid heat accumulation or poor conduction caused by local structural changes, thereby further improving the heat dissipation effect of the entire enclosed cable segment 100, ensuring that the cable can operate stably under different working conditions, reducing various potential risks caused by poor heat dissipation, extending the service life of the cable and improving its working reliability. At the same time, the convex points evenly and symmetrically arranged on the outer ring of the annular heat sink 101 can also increase friction, making it easier for operators to hold the cable.

[0062] It should be noted that if Figure 2 As shown, the cable inner shell 103 further includes a single-circle complete through hole 1031 .

[0063] like Figure 6 , which shows a cross-sectional view of a second type of sealed cable segment 100 having an annular heat sink 101 , wherein the single-circle complete through-holes 1031 are evenly arranged on the cable inner shell 103 .

[0064] The single-circle complete through hole 1031 is used to penetrate the outer shell cavity 106 and the inner shell cavity 107 to achieve flow exchange of the insulating liquid cooling oil in the outer shell cavity 106 and the insulating liquid cooling oil in the inner shell cavity 107 .

[0065] It should be noted that the single circle of complete through holes 1031 is composed of 6 complete through holes 1031 .

[0066] It can be understood that the single-circle full through-hole 1031 uniformly arranged on the cable inner shell 103 plays an extremely critical role in the heat dissipation system of the entire enclosed cable segment 100. By penetrating the outer shell cavity 106 and the inner shell cavity 107, the insulating liquid cooling oil in the cavities on both sides can achieve flow exchange. This flow exchange mechanism helps to maintain the temperature uniformity of the insulating liquid cooling oil in the entire cable structure. For example: on the one hand, when the insulating liquid cooling oil in the inner shell cavity 107 increases in temperature due to absorbing heat, with the help of the connection effect of the full through-hole 1031, the high-temperature insulating liquid cooling oil can flow with the relatively low-temperature liquid cooling oil in the other cavity, thereby promoting a more even distribution of heat in the liquid cooling oil system inside the entire cable; on the other hand, when the high-temperature insulating liquid cooling oil flows into the outer shell cavity 106, it can simultaneously dissipate heat to the outside through a number of annular heat sinks 101, so that the temperature of the cable is quickly reduced. This not only improves the heat dissipation efficiency of the insulating liquid cooling oil, but also effectively avoids the occurrence of local overheating, thereby ensuring that the internal components of the cable operate stably under a suitable temperature environment, reducing a series of problems that may be caused by excessive temperature differences, such as reduced insulation performance and accelerated cable aging.

[0067] It should be noted that if Figure 2 As shown, the cable inner shell 103 further includes a single-circle one-way through hole 1032 .

[0068] like Figure 7 , which shows a cross-sectional view of a third type of sealed cable segment 100 having an annular heat sink 101 , wherein the single-circle one-way through holes 1032 are evenly arranged on the inner ring of the cable inner shell 103 .

[0069] The single-circle one-way through hole 1032 is used for one-way penetration of the outer shell cavity 106 to the inner shell cavity 107 , so as to enable the insulating liquid cooling oil in the outer shell cavity 106 to flow to the inner shell cavity 107 .

[0070] It should be noted that the single-circle one-way through hole 1032 is composed of 6 one-way through holes 1032 .

[0071] It is understandable that the single-circle unidirectional through holes 1032 are evenly distributed on the cable inner shell 103, and its unique unidirectional through-hole function enables the insulating liquid cooling oil in the outer shell cavity 106 to flow into the inner shell cavity 107. When it is required, the flow direction of the liquid cooling oil can be controlled in a targeted manner. For example, when the live cable 1041 is energized, heat is generated. When a large amount of heat is generated in the inner shell cavity 107 and absorbed by the liquid cooling oil in the inner shell cavity 107, insulating liquid cooling oil with a higher temperature is formed, which expands and causes the insulating liquid cooling oil with a higher temperature to flow to the outer shell cavity 106 through the complete through hole 1031, forcing the insulating liquid cooling oil with a lower temperature in the outer shell cavity 106 to flow into the inner shell cavity 107 in an orderly manner through the one-way through hole 1032. On the one hand, heat neutralization between the outer shell cavity 106 and the inner shell cavity 107 is achieved, and on the other hand, the heat can be further diffused in the area involved in the outer shell cavity 106, and absorbed and dissipated outwardly through the annular heat sink 101, so that the heat can be more deeply conducted and dissipated inside the entire cable, thereby optimizing the entire heat dissipation process, improving the heat dissipation effect, ensuring that the cable can maintain a good temperature state under different working conditions, and ensuring the normal operation and service life of the cable.

[0072] It should be noted that if Figure 2 As shown, the single-turn complete through hole 1031 is arranged on the first end side of the cable inner shell 103 .

[0073] The first end side of the cable inner shell 103 is an end close to the input cable segment 200 .

[0074] It should be noted that if Figure 2 As shown, the single-circle one-way through hole 1032 is arranged on the second end side of the cable inner shell 103 .

[0075] The second end side of the cable inner shell 103 is an end close to the output cable segment 300 .

[0076] It is understandable that a single-circle complete through hole 1031 is provided on one side of the sealed cable segment 100, and a single-circle unidirectional through hole 1032 is provided on the other side of the sealed cable segment 100. This spacing arrangement constructs a more sophisticated and efficient liquid cooling oil flow network. Fig. 9As shown, when the high-temperature insulating liquid cooling oil flows out from the full through hole 1031, the low-temperature insulating liquid cooling oil at the one-way through hole 1032 is squeezed and forced to flow to the inner shell cavity 107, so that the flow of the insulating liquid cooling oil between the outer shell cavity 106 and the inner shell cavity 107 has both the flexibility of two-way interchange and the pertinence of one-way regulation. For example: when the live wire cable 1041 is powered on, heat is generated. When a large amount of heat is generated in the inner shell cavity 107 and absorbed by the liquid cooling oil in the inner shell cavity 107, a higher temperature insulating liquid cooling oil is formed, which expands and flows to the outer shell cavity 106 through the full through hole 1031; and the one-way through hole 1032 ensures that the lower temperature liquid cooling oil in the outer shell cavity 106 can flow to the higher temperature inner shell cavity 107, playing its role of one-way flow guidance. This coordinated layout can more accurately control the flow path and speed of the insulating liquid cooling oil, flexibly adjust the heat dissipation strategy according to the heat distribution in the actual operation of the cable, maximize the heat dissipation efficiency of the entire enclosed cable segment 100, and ensure that the cable always maintains good performance and stable working condition under complex and changeable working conditions.

[0077] like Figure 8 As shown, the liquid cooling control device 400 further includes a main control unit 401 , an AC / DC unit 402 , a switch MOS tube 403 , an electric pump 404 and a temperature sensor 405 .

[0078] An input end of the AC / DC unit 402 is connected to the live conductor 1041 in the input cable segment 200 .

[0079] The first output terminal of the AC / DC unit 402 is connected to the first input terminal of the main control unit 401 .

[0080] The second output terminal of the AC / DC unit 402 is connected to the input terminal of the switch MOS tube 403 .

[0081] The second input terminal of the main control unit 401 is connected to the temperature sensor 405 .

[0082] The output end of the main control unit 401 is connected to the control end of the switch MOS tube 403 .

[0083] The output end of the switch MOS tube 403 is connected to the electric pump 404 .

[0084] The temperature sensor 405 is disposed in the inner shell cavity 107 through the single-turn full through hole 1031 .

[0085] It is understandable that the liquid cooling control device 400 forms an intelligent liquid cooling control system through such a connection method. Fig.10As shown, the AC / DC unit 402 can convert the alternating current from the input cable segment 200 into direct current, and provide appropriate power to the main control unit 401 and the electric pump 404. The temperature sensor 405 monitors the temperature of the live cable 104 in the closed cable segment 100 in real time, and transmits the data to the main control unit 401. The main control unit 401 analyzes and determines the received temperature information. When the temperature exceeds the set threshold, the main control unit 401 sends a control signal to the switch MOS tube 403 to turn on the switch MOS tube 40, thereby starting the electric pump 404. Fig. 9 As shown, when the electric pump 404 is working, it can cause the insulating liquid cooling oil to circulate between the outer shell cavity 106 and the inner shell cavity 107 according to a predetermined flow path, accelerate the transfer and dissipation of heat, ensure that the temperature of the enclosed cable segment 100 is always within a reasonable range, ensure the stable operation and safety performance of the cable, and effectively extend the service life of the cable to adapt to various complex power transmission environments and working condition changes.

[0086] It can be understood that the setting of the liquid cooling control device 400, without the need for additional power supply, realizes that the electric pump promotes the insulating liquid cooling oil to circulate faster between the outer shell cavity 106 and the inner shell cavity 107 along a predetermined flow path through the live wire and the neutral wire of the cable itself.

[0087] Those skilled in the art will appreciate that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily necessary for implementing the present application. Those skilled in the art will appreciate that the modules in the devices in the implementation scenario can be distributed in the devices of the implementation scenario according to the description of the implementation scenario, or can be changed accordingly and located in one or more devices different from the present implementation scenario. The modules of the above-mentioned implementation scenario can be combined into one module, or can be further split into multiple submodules.

[0088] The above serial numbers of this application are only for description and do not represent the advantages and disadvantages of the implementation scenarios. The above disclosure is only a few specific implementation scenarios of this application, but this application is not limited to them, and any changes that can be thought of by technicians in this field should fall within the scope of protection of this application.

Claims

1. An intelligent cable with liquid cooling, characterized in that: It comprises a sealed cable segment (100), an input cable segment (200), an output cable segment (300) and a liquid cooling control device (400); The enclosed cable segment (100) is a completely sealed cable segment, and is mainly used for liquid cooling of the cable; The input cable segment (200) is mainly used for transition connection between the power supply end and the enclosed cable segment (100), the first end of the input cable segment (200) being connected to the power supply end, and the second end of the input cable segment (200) being connected to the first end of the enclosed cable segment (100); The output cable segment (300) is mainly used for transition connection between the sealed cable segment (100) and the power consumption end, the first end of the output cable segment (300) is connected to the power consumption end, and the second end of the output cable segment (300) is connected to the second end of the sealed cable segment (100); The liquid cooling control device (400) is mainly used to promote heat dissipation in the enclosed cable segment (100); The liquid cooling control device (400) is detachably mounted at the junction of the sealed cable segment (100) and the input cable segment (200).

2. The intelligent cable with liquid cooling according to claim 1, characterized in that: The sealed cable segment (100), the input cable segment (200) and the output cable segment (300) are an integrally formed cable structure.

3. The intelligent cable with liquid cooling according to claim 2, characterized in that: The enclosed cable segment (100), the input cable segment (200) and the output cable segment (300) also each include a cable outer shell (102), a cable inner shell (103), a live cable (104) and a neutral cable (105); The live wire cable (104) and the neutral wire cable (105) are arranged inside the cable inner shell (103); The cable inner shell (103) is arranged inside the cable outer shell (102); In the input cable segment (200) and the output cable segment (300), solid insulating material is filled between the cable inner shell (103) and the cable outer shell (102); In the input cable section (200) and the output cable section (300), solid insulating material is filled between the live cable (104) and the neutral cable (105) and the cable housing (102).

4. The intelligent cable with liquid cooling according to claim 3, characterized in that: In the enclosed cable segment (100), the input cable segment (200) and the output cable segment (300), the live cable (104) further comprises a live conductor (1041) and a live protective shell (1042); and the neutral cable (105) further comprises a neutral conductor (1051) and a neutral protective shell (1052).

5. The intelligent cable with liquid cooling according to claim 4, characterized in that: The sealed cable segment (100) further comprises a plurality of annular heat sinks (101), an outer shell cavity (106) and an inner shell cavity (107); The plurality of annular heat sinks (101) are used for heat dissipation of the sealed cable segment (100); The outer shell cavity (106) is arranged between the cable outer shell (102) and the cable inner shell (103), and the outer shell cavity (106) is filled with insulating liquid cooling oil; The inner shell cavity (107) is arranged in the cable inner shell (103), and the inner shell cavity (107) is filled with insulating liquid cooling oil; The dimensions of the plurality of annular heat sinks (101) are consistent with the cross-sectional dimensions of the cable housing (102); The plurality of annular heat sinks (101) are evenly embedded in the cable housing (102) at a certain distance.

6. The intelligent cable with liquid cooling according to claim 5, characterized in that: The dimensions of the plurality of annular heat sinks (101) are consistent with the cross-sectional dimensions of the cable housing (102); The plurality of annular heat sinks (101) are evenly embedded in the cable housing (102) at a certain distance.

7. The intelligent cable with liquid cooling according to claim 6, characterized in that: The cable inner casing (103) further comprises a single-circle complete through hole (1031) and a single-circle unidirectional through hole (1032); The single-circle complete through hole (1031) is used to penetrate the outer shell cavity (106) and the inner shell cavity (107), so as to achieve flow exchange between the insulating liquid cooling oil in the outer shell cavity (106) and the insulating liquid cooling oil in the inner shell cavity (107); The single-circle one-way through hole (1032) is used for one-way penetration of the outer shell cavity (106) into the inner shell cavity (107), thereby enabling the insulating liquid cooling oil in the outer shell cavity (106) to flow into the inner shell cavity (107).

8. The intelligent cable with liquid cooling according to claim 7, characterized in that: The single-turn complete through hole (1031) is arranged on the first end side of the cable inner shell (103); The single-turn one-way through hole (1032) is arranged on the second end side of the cable inner shell (103); The first end side of the cable inner casing (103) is an end close to the input cable segment (200); The second end side of the cable inner casing (103) is an end close to the output cable segment (300).

9. The intelligent cable with liquid cooling according to claim 8, characterized in that: The single-circle complete through hole (1031) is composed of 6 complete through holes (1031); The single-circle one-way through hole (1032) is composed of six one-way through holes (1032).

10. The intelligent cable with liquid cooling according to claim 9, characterized in that: The liquid cooling control device (400) further comprises a main control unit (401), an AC / DC unit (402), a switch MOS tube (403), an electric pump (404) and a temperature sensor (405); The input end of the AC / DC unit (402) is connected to the live conductor (1041) in the input cable segment (200); The first output end of the AC / DC unit (402) is connected to the first input end of the main control unit (401); The second output end of the AC / DC unit (402) is connected to the input end of the switch MOS tube (403); The second input end of the main control unit (401) is connected to the temperature sensor (405); The output end of the main control unit (401) is connected to the control end of the switch MOS tube (403); The output end of the switch MOS tube (403) is connected to the electric pump (404); The temperature sensor (405) is arranged in the inner shell cavity (107) through the single-turn complete through hole (1031).

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