A cable with liquid cooling

Abstract

The present invention discloses a cable with liquid cooling and heat dissipation, comprising a sealed cable segment, an input cable segment and an output cable segment; the sealed 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 sealed cable segment; the output cable segment is mainly used for the transition connection between the sealed cable segment and the power consumption end. Through the synergistic effect of insulating liquid cooling oil, annular heat sinks, complete through holes and one-way through holes, the heat generated by the operation of the cable can be quickly absorbed and dissipated, local overheating can be avoided, the stable operation of the cable can be ensured, and the heat dissipation efficiency can be improved; compared with the method of adding a spiral metal tube to the entire cable, the material and transportation costs are reduced without sacrificing flexibility; the high-quality material selection and reasonable structural design ensure the electrical insulation performance, reduce failures caused by heat dissipation problems, and extend the service life of the cable.

Description

Technical Field

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

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

[0003] Existing cable cooling solutions primarily include natural air cooling, forced air cooling, and heat dissipation using thermally conductive materials. First, natural cooling relies on heat exchange between the cable and air, which is inefficient. In densely packed or enclosed environments, heat easily accumulates, causing rapid cable temperature rise, impacting current carrying capacity and lifespan, and even causing insulation breakdown. Second, while forced air cooling offers some improvement, it consumes significant energy. In harsh environments, such as dusty and humid areas, dust and moisture can affect heat dissipation, potentially causing safety incidents. Furthermore, its heat dissipation capacity is insufficient to meet the demands of high-load cables. Third, heat dissipation using thermally conductive materials is limited by the material's thermal conductivity and contact thermal resistance. Prolonged exposure to high temperatures can lead to changes in material properties and reduced heat dissipation efficiency.

[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 insulation 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 number: 202410618015.8, patent name "Liquid Cooling Heat Dissipation Cable" has the following shortcomings:

[0007] (1) Adding two spiral metal tubes to the cable will increase the material cost and transportation cost of the cable and sacrifice the flexibility of the cable;

[0008] (2) The heat generated by the copper cable layer can only be partially dissipated by conducting the closely contacted spiral metal tube to the liquid cooling oil inside the tube. 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

[0009] In response to the above technical problems, the present invention proposes a 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.

[0010] The technical solution used in the present invention is: a cable with liquid cooling and heat dissipation, comprising a closed cable segment, an input cable segment and an output cable segment; 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.

[0011] Furthermore, the enclosed cable segment, the input cable segment and the output cable segment are an integrally formed cable structure.

[0012] 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 wire cable and a neutral wire cable; the live wire cable and the neutral wire 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, solid insulating material is filled between the cable inner shell and the cable outer shell; in the input cable segment and the output cable segment, solid insulating material is filled between the live wire cable and the neutral wire cable and the cable outer shell.

[0013] Furthermore, in the input cable segment and the output cable segment, the live cable also includes a live conductor and a live protective shell; the neutral cable also includes a neutral conductor and a neutral protective shell; in the enclosed cable segment, the live cable only includes a live conductor; the neutral cable also includes a neutral conductor and a neutral protective shell.

[0014] 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.

[0015] Furthermore, the dimensions of the plurality of annular heat sinks are consistent with the cross-sectional dimensions of the cable housing; and the plurality of annular heat sinks are evenly embedded in the cable housing at a certain interval.

[0016] Furthermore, the plurality of annular heat sinks are evenly embedded in the cable housing at a certain distance.

[0017] Furthermore, the cable inner shell also includes several circles of complete through holes; any circle of the several circles of complete through holes is evenly arranged on the cable inner shell; the several circles of complete through holes are 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.

[0018] Furthermore, the cable inner shell also includes several circles of one-way through holes; any one circle of the one-way through holes is evenly arranged on the inner ring of the cable inner shell; the several circles of one-way through holes are used for one-way penetration of the outer shell cavity to the inner shell cavity, so as to realize the flow of insulating liquid cooling oil in the outer shell cavity to the inner shell cavity.

[0019] Furthermore, on both horizontal sides of any circle of complete through holes among the several circles of complete through holes, a circle of one-way through holes is set at a certain distance; on both horizontal sides of any circle of one-way through holes among the several circles of one-way through holes, a circle of complete through holes is set at a certain distance.

[0020] Compared with the prior art, the present invention has the following advantages: 1) through the synergistic effect of insulating liquid cooling oil, annular heat sinks, complete through-holes and one-way through-holes, it can quickly absorb and dissipate the heat generated by cable operation, avoid local overheating, ensure stable operation of the cable, and improve heat dissipation efficiency; 2) the liquid cooling structure is only set in the closed cable section, which reduces material and transportation costs without sacrificing flexibility compared to adding spiral metal tubes to the entire cable; 3) high-quality material selection and reasonable structural design ensure electrical insulation performance, reduce failures caused by heat dissipation problems, extend the service life of the cable, adapt to a variety of complex environments, and provide reliable protection for power transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an architecture diagram of a cable system with liquid cooling according to the present invention.

[0022] Figure 2 This is a detailed diagram showing a cable with liquid cooling according to the present invention.

[0023] Figure 3 This is a cross-sectional structural diagram of the input cable segment and the output cable segment of the present invention.

[0024] Figure 4 It is a cross-sectional view showing a sealed cable segment without an annular heat sink according to the present invention.

[0025] Figure 5 It is a cross-sectional structural diagram of the annular heat sink of the present invention.

[0026] Figure 6 This is a cross-sectional view showing a first sealed cable segment with an annular heat sink according to the present invention.

[0027] Figure 7 This is a cross-sectional view showing a second sealed cable segment with an annular heat sink according to the present invention.

[0028] Figure 8 This is a cross-sectional view showing a third sealed cable segment with an annular heat sink according to the present invention.

[0029] Figure 9 It 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.

[0030] Figure markings: Example: 100 - enclosed cable segment; 200 - input cable segment; 300 - output cable segment; 101 - annular heat sink; 102 - cable outer shell, 103 - cable inner shell, 104 - live wire cable; 105 - neutral wire cable; 106 - outer shell cavity; 107 - inner shell cavity; 1031 - complete through hole; 1032 - one-way through hole; 1041 - live wire conductor; 1042 - live wire protective shell; 1051 - neutral wire conductor; 1052 - neutral wire protective shell. DETAILED DESCRIPTION

[0031] 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 to 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0033] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0034] 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, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0035] 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 embodiments described 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 making creative work are within the scope of protection of the present invention.

[0036] The present invention will be described in detail below with reference to the accompanying drawings:

[0037] A cable with liquid cooling, such as Figure 1 As shown, it includes a sealed cable segment 100 , an input cable segment 200 and an output cable segment 300 .

[0038] The enclosed cable segment 100 is a completely sealed cable segment, and is mainly used for liquid cooling of the cable.

[0039] 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 .

[0040] The output cable segment 300 is mainly used for transition connection between the enclosed cable segment 100 and the power end. The first end of the output cable segment 300 is connected to the power end, and the second end of the output cable segment 300 is connected to the second end of the enclosed cable segment 100.

[0041] 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.

[0042] like Figure 3 As shown, it shows the cross-sectional structure of the input cable segment 200 and the output cable segment 300; Figure 4, which shows a cross-sectional view of the sealed cable segment 100. The sealed 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 cable 104 and a neutral cable 105.

[0043] The live wire cable 104 and the neutral wire cable 105 are arranged inside the cable inner shell 103 .

[0044] The cable inner shell 103 is disposed inside 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 cable inner shell 103 and the cable outer shell 102 .

[0046] 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 jacket 102 .

[0047] As will be appreciated, the cable jacket 102 is preferably made of polyvinyl chloride (PVC). PVC's excellent mechanical properties provide adequate protection for the internal cable jacket 103 and various cable structures, protecting them from damage caused by external physical factors such as extrusion and collision. Furthermore, it exhibits strong chemical resistance, maintaining stable chemical properties in the face of harsh external chemical environments such as acid rain and industrial chemical pollutants, as well as long-term contact with internal insulating fluid and cooling oil. PVC is also relatively inexpensive, effectively controlling costs in large-scale production applications.

[0048] It is understood that cross-linked polyethylene (XLPE) can be used for the cable inner jacket 103. XLPE's excellent electrical insulation properties effectively insulate the internal live and neutral cables 104 and 105, preventing leakage. XLPE also exhibits excellent heat resistance, maintaining stable physical and electrical properties even when the insulating cooling oil absorbs significant heat, preventing softening and deformation due to temperature increases. XLPE also possesses high toughness, allowing it to withstand certain deformations during installation or use, such as bending and twisting, without breaking, thus safeguarding the integrity of the internal cable structure.

[0049] It is understood that the solid insulation material between the live and neutral cables 104, 105, and the cable jacket 102, and the solid insulation material between the cable jacket 102 and the inner cable jacket 103, are primarily made of materials with high dielectric strength, excellent heat resistance, and chemical stability, such as cross-linked polyethylene and rubber. These materials not only maintain stable insulation performance under normal conditions, but also reliably perform their insulation functions even when the cable generates heat during operation and is exposed to complex environmental factors, ensuring stable long-term cable operation.

[0050] It should be noted that if Figure 3 As shown, in 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 .

[0051] 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 closed cable segment 100 in the middle, so that the cable can effectively dissipate the heat generated when facing high-load power transmission, maintain a good working condition, significantly improve the service life and reliability of the cable, and meet the stringent requirements of modern complex power transmission scenarios.

[0052] like Figure 1 and Figure 4 As shown, the sealed cable segment 100 further includes a plurality of annular heat sinks 101 , an outer shell cavity 106 and an inner shell cavity 107 .

[0053] The plurality of annular heat sinks 101 are used for heat dissipation of the sealed cable segment 100 .

[0054] The outer shell cavity 106 is provided 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.

[0055] 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.

[0056] 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 .

[0057] 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.

[0058] It is understandable that the annular heat sink 101 is preferably made of aluminum alloy, which has the advantages of being lightweight, having good thermal conductivity, and being highly corrosion-resistant. Its light weight does not add excessive additional weight to the cable as a whole, facilitating cable laying and installation; its excellent thermal conductivity can quickly diffuse the heat transferred from the insulating liquid cooling oil, improving heat dissipation efficiency; and its good corrosion resistance ensures that it can maintain a stable structure and heat dissipation performance in long-term and complex use environments, such as humid, acidic, and alkaline environments, thereby effectively ensuring the long-term and reliable operation of the heat dissipation system of the enclosed cable segment 100, extending the service life of the cable, reducing the risk of cable failure due to heat sink damage, and providing stable and safe protection for related power transmission or signal transmission.

[0059] As will be understood, the insulating liquid cooling oil is primarily composed of a mixture of high-purity mineral oil and special insulating additives. Mineral oil possesses excellent thermal conductivity and chemical stability, enabling it to quickly absorb and evenly distribute the heat generated by the sealed cable segment 100 during operation. The insulating additives further enhance the insulating properties of the liquid cooling oil, ensuring that it will not conduct electricity during prolonged contact with conductive components such as the live conductor 1041 and the neutral conductor 1051, thereby ensuring the electrical safety of the entire sealed cable segment 100.

[0060] It should be noted that if Figure 4 As shown, a cross-sectional view of a sealed cable segment 100 without an annular heat sink 101 is shown. In the sealed cable segment 100 , the live cable 104 only includes a live conductor 1041 ; the neutral cable 105 also includes a neutral conductor 1051 and a neutral protective shell 1052 .

[0061] It is understood that within the inner shell cavity 107, the live conductor 1041 is in full contact with the insulating liquid cooling oil, allowing the heat generated by the live conductor 1041 to be efficiently transferred to the insulating liquid cooling oil. After absorbing heat, the insulating liquid cooling oil, due to its fluidity, forms a natural thermal convection cycle between the outer shell cavity 106 and the inner shell cavity 107, gradually transferring the heat to the cable outer shell 102 and the several annular heat sinks 101. The several annular heat sinks 101 evenly embedded in the cable outer shell 102 further increase the contact area with the external environment, accelerating the dissipation of heat to the surrounding air, thereby maintaining the temperature of the enclosed cable segment 100 within a reasonable range, ensuring stable operation of the cable, and avoiding problems such as reduced insulation performance and increased line loss caused by overheating.

[0062] It should be noted that if Figure 5 , which shows a cross-sectional structural diagram of an annular heat sink. Any of the plurality of annular heat sinks 101 is further provided with protrusions that are evenly and symmetrically arranged.

[0063] 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 .

[0064] It is understandable that if Figure 6 The figure shows a cross-sectional view of a first sealed cable segment 100 with an annular heat sink 101. The raised points, evenly and symmetrically arranged on the inner and / or outer rings of the annular heat sink 101, increase the surface area of ​​the annular heat sink 101, creating more contact surfaces with both the insulating cooling oil inside and the external air. When in contact with the insulating cooling oil, more contact points facilitate more efficient heat transfer from the cooling oil to the heat sink; when in contact with the external air, they also accelerate the rate of heat dissipation from the heat sink to the air. Furthermore, the even and symmetrical arrangement of the raised points helps maintain the structural stability of the heat sink and uniform heat conduction, preventing heat accumulation or poor conduction due to local structural variations. This further enhances the heat dissipation of the entire sealed cable segment 100, ensuring stable cable operation under various operating conditions, reducing potential risks associated with poor heat dissipation, extending the cable's service life, and improving its reliability. Furthermore, the even and symmetrical arrangement of the raised points on the outer ring of the annular heat sink 101 increases friction, making it easier for operators to grip the cable.

[0065] It should be noted that if Figure 2 As shown, the cable inner shell 103 further includes a plurality of circles of completely through holes 1031 .

[0066] like Figure 7 , which shows a cross-sectional view of a second type of sealed cable segment 100 having an annular heat sink 101 , wherein any one of the plurality of circles of complete through holes 1031 is evenly arranged on the cable inner shell 103 .

[0067] The plurality of circles of completely through holes 1031 are used to penetrate the outer shell cavity 106 and the inner shell cavity 107 , thereby achieving 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 .

[0068] It should be noted that any one circle of complete through holes 1031 among the plurality of circles of complete through holes 1031 consists of 6 complete through holes 1031 .

[0069] It is understood that the multiple circles of fully through-holes 1031 uniformly arranged on the cable inner shell 103 play a crucial role in the heat dissipation system of the entire enclosed cable segment 100. By connecting the outer shell cavity 106 and the inner shell cavity 107, the insulating liquid cooling oil in each cavity can flow interchangeably. This flow interchange mechanism helps maintain the temperature uniformity of the insulating liquid cooling oil throughout the cable structure. For example, when the insulating liquid cooling oil in the inner shell cavity 107 heats up due to absorption, the fully through-holes 1031 facilitate the connection, allowing the high-temperature insulating liquid cooling oil to flow with the relatively low-temperature liquid cooling oil in the other cavity, thereby promoting a more even distribution of heat throughout the liquid cooling oil system within the cable. Furthermore, when the high-temperature insulating liquid cooling oil flows into the outer shell cavity 106, it can simultaneously dissipate heat externally through the multiple annular heat sinks 101, rapidly reducing the cable temperature. 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 in a suitable temperature environment, and reducing a series of problems such as insulation performance degradation and accelerated cable aging that may be caused by excessive temperature differences.

[0070] It should be noted that if Figure 2 As shown, the cable inner shell 103 further includes a plurality of circles of one-way through holes 1032 .

[0071] like Figure 8 As shown, a cross-sectional view of a third type of sealed cable segment 100 having an annular heat sink 101 is shown, and any one of the several circles of one-way through holes 1032 is evenly arranged on the inner ring of the cable inner shell 103.

[0072] The plurality of circles of one-way through holes 1032 are used for one-way communication from 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 into the inner shell cavity 107 .

[0073] It should be noted that any one circle of one-way through holes 1032 among the plurality of circles of one-way through holes 1032 consists of six one-way through holes 1032 .

[0074] It is understood that the multiple circles of one-way through holes 1032 are evenly distributed on the cable inner shell 103. Their unique one-way penetration 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, it can be used to control the flow direction of the liquid cooling oil 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. The insulating liquid cooling oil with a higher temperature expands and flows into the outer shell cavity 106 through the full 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. On the other hand, the heat can be further diffused in the area involved in the outer shell cavity 106, and absorbed and dissipated outwards through the annular heat sink 101, so that the heat can be conducted and dissipated more deeply 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.

[0075] It should be noted that if Figure 2 As shown, on both horizontal sides of any circle of complete through holes 1031 of the plurality of circles of complete through holes 1031 , a circle of one-way through holes 1032 is provided at a certain distance.

[0076] It should be noted that if Figure 2 As shown, on both horizontal sides of any circle of one-way through holes 1032 of the plurality of circles of one-way through holes 1032 , a circle of complete through holes 1031 is provided at a certain distance.

[0077] It is understandable that a circle of one-way through holes 1032 is provided on both sides of any circle of complete through holes 1031 at a certain distance, and a circle of one-way through holes 1031 is provided on both sides of any circle of one-way through holes 1032 at a certain distance. This spacing arrangement constructs a more sophisticated and efficient liquid cooling oil flow network. Figure 9As shown, through the alternate arrangement of a circle of complete through-holes 1031 and a circle of one-way through-holes 1032, when high-temperature insulating liquid cooling oil flows into the complete through-holes 1031 on either side, it squeezes and forces the low-temperature insulating liquid cooling oil in the middle one-way through-hole 1032 to flow toward the inner shell cavity 107. This allows the flow of insulating liquid cooling oil between the outer shell cavity 106 and the inner shell cavity 107 to be both bidirectionally flexible and unidirectionally controlled. For example, when power is applied to the live cable 1041, heat is generated in the inner shell cavity 107. This heat is absorbed by the liquid cooling oil in the inner shell cavity 107, forming higher-temperature insulating liquid cooling oil. This heat expands and flows through the complete through-holes 1031 toward the outer shell cavity 106. The one-way through-holes 1032 ensure that the lower-temperature liquid cooling oil in the outer shell cavity 106 can flow to the higher-temperature inner shell cavity 107, thus fulfilling its unidirectional flow guidance function. 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 actual heat distribution of the cable during operation, 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 changing working conditions.

[0078] Those skilled in the art will understand 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 required to implement the present application. Those skilled in the art will understand that the modules in the devices in the implementation scenario can be distributed in the devices of the implementation scenario according to the implementation scenario description, or can be changed accordingly and located in one or more devices different from the implementation scenario. The modules of the above-mentioned implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0079] The serial numbers of the above application are for descriptive purposes only and do not represent the advantages or disadvantages of the implementation scenarios. The above disclosure only discloses several specific implementation scenarios of the present application, but the present application is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present application.

Claims

1. A cable with liquid cooling, characterized in that: It comprises a sealed cable segment (100), an input cable segment (200) and an output cable segment (300); The enclosed cable segment (100) is a completely sealed cable segment used for liquid cooling of the cable; The input cable segment (200) is used for transition connection between the power supply end and the sealed cable segment (100), wherein 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 sealed cable segment (100); The output cable segment (300) is used for transition connection between the sealed cable segment (100) and the power end, wherein the first end of the output cable segment (300) is connected to the power end, and the second end of the output cable segment (300) is connected to the second end of the sealed cable segment (100); 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 wire cable (104) and a neutral wire 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); 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 shell cavity (106) is arranged between the cable shell (102) and the cable inner shell (103), and the 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 cable inner shell (103) further comprises a plurality of circles of completely through holes (1031); The cable inner casing (103) further comprises a plurality of circles of one-way through holes (1032).

2. The 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 cable with liquid cooling according to claim 2, characterized in that: In 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); the neutral cable (105) further comprises a neutral conductor (1051) and a neutral protective shell (1052); In the sealed cable segment (100), the live wire cable (104) only includes a live wire conductor (1041); the neutral wire cable (105) further includes a neutral wire conductor (1051) and a neutral wire protective shell (1052).

4. The cable with liquid cooling according to claim 3, 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).

5. The cable with liquid cooling according to claim 4, characterized in that: The plurality of annular heat sinks (101) are evenly embedded in the cable housing (102) in an interval manner.

6. The cable with liquid cooling according to claim 5, characterized in that: Any one circle of complete through holes (1031) of the plurality of circles of complete through holes (1031) is evenly arranged on the cable inner shell (103); The plurality of circles of completely through holes (1031) are used to penetrate the outer shell cavity (106) and the inner shell cavity (107), thereby realizing 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).

7. The cable with liquid cooling according to claim 6, characterized in that: Any one circle of one-way through holes (1032) among the plurality of circles of one-way through holes (1032) is evenly arranged on the inner ring of the cable inner shell (103); The plurality of circles of one-way through holes (1032) are used for one-way penetration from the outer shell cavity (106) to 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 cable with liquid cooling according to claim 7, characterized in that: On both horizontal sides of any circle of complete through holes (1031) among the plurality of circles of complete through holes (1031), a circle of one-way through holes (1032) is provided in an interval manner; On both horizontal sides of any circle of one-way through holes (1032) among the plurality of circles of one-way through holes (1032), a circle of complete through holes (1031) is provided in an interval manner.

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