Heat dissipation cable with metal heat conduction function

Abstract

The invention discloses a heat dissipation cable with a metal heat conduction function. The heat dissipation cable comprises a cable and a plurality of metal heat conductors, one end of the cable is connected with the power supply end, and the other end of the cable is connected with the power utilization end; and the plurality of metal heat conductors are uniformly embedded in the cable at certain intervals. In this way, the LED lamp has the following beneficial effects that the heat dissipation efficiency is remarkably improved, the three-section type heat conduction structure is matched with the outer ring protruding points, heat dissipation is accelerated, and local high temperature is avoided; the safety is better, double insulation guarantee is achieved, aging of the insulation layer is reduced, and the fault risk is reduced; the structural adaptability is high, flexibility and durability are both considered, and the service life is prolonged.

Description

Technical Field

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

[0002] In the field of power transmission and electronic device connectivity, cables serve as the core carriers of energy and signal transmission. Their heat dissipation performance directly impacts the system's operational stability and service life. Currently, in conventional cable designs, the conductive core (live wire) serves as the primary heat source, typically surrounded by multiple layers of insulating materials (such as polyvinyl chloride and cross-linked polyethylene) and protective outer coverings (such as rubber and metal armor).

[0003] However, to meet electrical insulation requirements, these insulating materials are often made of high-molecular-weight polymers, which generally have low thermal conductivity, significantly lower than metal. Furthermore, to balance mechanical strength and corrosion resistance, protective casings are often constructed of composite plastics or plated metals. These thermal paths have multiple interface thermal resistances, further hindering heat transfer. This structure prevents the Joule heat generated by the live wire from being effectively dissipated through the insulation and casing, leading to heat accumulation. As the power density of power equipment increases, cables are exposed to long-term high temperatures. This not only accelerates the aging of insulation materials, leading to increased dielectric loss and decreased insulation strength, increasing the risk of short circuits and breakdowns, but also can induce structural stress due to differential thermal expansion, causing mechanical failures such as loose cable joints and sheath cracking. In scenarios such as new energy vehicles, industrial control cabinets, and high-density data centers, insufficient cable heat dissipation has become a key bottleneck hindering the development of miniaturized and high-power systems. A new cable design is urgently needed that can overcome the limitations of traditional structures and efficiently dissipate heat from live wires. Currently, industry-wide improvements to cable cooling face significant limitations. Some technologies reduce current density by increasing the cable's cross-sectional area, but this increases the cable's diameter, contradicting the trend toward equipment miniaturization and making it difficult to install in confined spaces. Other solutions employ forced air cooling or liquid cooling, requiring additional equipment such as pumps and fans. This not only increases system complexity and energy consumption, but also poses risks such as leakage and noise, making it unsuitable for harsh, outdoor, and humid environments. Therefore, developing a cable structure that can directly target the fire line heat source and efficiently dissipate heat through the metal heat conduction path has become the core technical breakthrough for solving the above problems. Summary of the Invention

[0004] In response to the above technical problems, the present invention proposes a cable with air cooling and heat dissipation, which can improve air cooling and heat dissipation while avoiding the increase of material cost and transportation cost, and will not sacrifice the flexibility of the cable.

[0005] The technical solution used in the present invention is: a heat dissipation cable with metal thermal conductivity, including a cable and several metal heat conductors; one end of the cable is connected to the power supply end, and the other end of the cable is connected to the power consumption end; the several metal heat conductors are evenly embedded in the cable at a certain distance.

[0006] Furthermore, the cable includes: a cable outer shell, an outer shell cavity, a cable inner shell, an inner shell cavity, 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; the outer shell cavity is between the cable outer shell and the cable inner shell; the inner shell cavity is between the cable inner shell and the live wire cable, and between the cable inner shell and the neutral wire cable; the outer shell cavity and the inner shell cavity are filled with solid insulating material; the live wire cable includes a live wire core and a live wire insulating sleeve; the neutral wire cable includes a neutral wire core and a neutral wire insulating sleeve.

[0007] Furthermore, any one of the several metal thermal conductors includes a metal thermal conductive inner ring, a metal thermal conductive pipe and a metal thermal conductive outer ring; the metal thermal conductive inner ring is tightly wrapped around the outside of the live cable; one end of the metal thermal conductive pipe is connected to the metal thermal conductive inner ring, and the other end of the metal thermal conductive pipe is connected to the metal thermal conductive outer ring, and the metal thermal conductive pipe passes through the cable inner shell and the cable outer shell; the metal thermal conductive outer ring is embedded in the cable outer shell.

[0008] Furthermore, the metal heat-conducting inner ring and the metal heat-conducting connecting pipe are made of flexible metal material.

[0009] Furthermore, the metal heat-conducting outer ring is made of a rigid metal material.

[0010] Furthermore, the live wire insulation sleeve can prevent the live wire core from directly contacting the metal heat-conducting inner ring.

[0011] Furthermore, the outer surface of the metal heat-conducting outer ring is provided with protruding points.

[0012] Compared with the existing technology, the advantages of the present invention are: 1) the heat dissipation efficiency is significantly improved. The three-stage heat conduction structure cooperates with the raised points on the outer ring to accelerate heat dissipation and avoid local high temperature; 2) safety is better, double insulation is guaranteed, and aging of the insulation layer is reduced, reducing the risk of failure; 3) the structure has strong adaptability, taking into account flexibility and durability, and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a diagram of the architecture of a heat dissipation cable system with metal thermal conductivity according to the present invention.

[0014] Figure 2This is a detailed diagram showing a heat dissipation cable with metal thermal conductivity according to the present invention.

[0015] Figure 3 This is a cross-sectional structural diagram of the first heat dissipation cable with metal thermal conductivity of the present invention.

[0016] Figure numerals: 100 - cable; 105 - several metal heat conductors; 101 - cable shell; 1011 - shell cavity; 102 - cable inner shell; 1021 - inner shell cavity; 103 - live wire cable; 104 - neutral wire cable; 1051 - metal heat conductive inner ring; 1052 - metal heat conductive connecting pipe; 1053 - metal heat conductive outer ring. DETAILED DESCRIPTION

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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 efforts are within the scope of protection of the present invention.

[0022] The present invention will be described in detail below with reference to the accompanying drawings: A cable with air cooling, such as Figure 1 As shown, it includes a cable 100 and several metal heat conductors 105 .

[0023] One end of the cable 100 is connected to the power supply end, and the other end of the cable 100 is connected to the power consumption end.

[0024] The plurality of metal heat conductors 105 are evenly embedded in the cable 100 at certain intervals.

[0025] It should be noted that the plurality of metal heat conductors 105 are mainly used to promote heat conduction and heat dissipation in the cable 100 .

[0026] like Figure 3 As shown, the cable 100 includes: a cable outer shell 101 , an outer shell cavity 1011 , a cable inner shell 102 , an inner shell cavity 1021 , a live wire cable 103 and a neutral wire cable 104 .

[0027] The live cable 103 and the neutral cable 104 are arranged inside the cable inner shell 102 .

[0028] The cable inner shell 102 is disposed inside the cable outer shell 101 .

[0029] The housing cavity 1011 is between the cable outer housing 101 and the cable inner housing 102 .

[0030] The inner shell cavity 1021 is between the cable inner shell 102 and the live cable 103 , and between the cable inner shell 102 and the neutral cable 104 .

[0031] The outer shell cavity 1011 and the inner shell cavity 1021 are filled with solid insulating material.

[0032] The live wire cable 103 includes a live wire core 1031 and a live wire insulation sleeve 1032 .

[0033] The neutral wire cable 104 includes a neutral wire core 1041 and a neutral wire insulation sleeve 1042 .

[0034] like Figure 3As shown, any one of the plurality of metal heat conductors 105 includes a metal heat conductive inner ring 1051 , a metal heat conductive connecting pipe 1052 and a metal heat conductive outer ring 1053 .

[0035] The metal heat-conducting inner ring 1051 is tightly wrapped around the outside of the live cable 103 .

[0036] One end of the metal heat-conducting pipe 1052 is connected to the metal heat-conducting inner ring 1051 , and the other end of the metal heat-conducting pipe 1052 is connected to the metal heat-conducting outer ring 1053 . The metal heat-conducting pipe 1052 passes through the cable inner shell 102 and the cable outer shell 101 .

[0037] The metal heat-conducting outer ring 1053 is embedded in the cable housing 101 .

[0038] It should be noted that the metal heat-conducting inner ring 1051 and the metal heat-conducting connecting pipe 1052 are made of flexible metal materials, such as copper, with emphasis on ductility.

[0039] It should be noted that the metal heat-conducting outer ring 1053 is made of a rigid metal material, such as metal steel, and focuses on being firm and wear-resistant.

[0040] It should be noted that the live wire insulation sleeve 1032 can prevent the live wire core 1031 from directly contacting the metal heat-conducting inner ring 1051 .

[0041] It is understandable that the three-section structure of the metal heat conductor 105 is by no means an accidental design, but a complete heat dissipation system formed by the precise planning of the heat conduction path. The FireWire cable 103 is the main heat source during cable operation. If the heat generated by it cannot be discharged in time, it is very easy to cause aging of the insulation layer or even short circuit failure due to excessive temperature. The metal heat-conducting inner ring 1051 is directly and tightly wrapped around the outside of the FireWire cable 103, and can contact the heat source at the first time, minimizing the heat loss in the initial stage of transfer; the metal heat-conducting pipe 1052 is like a "heat channel", which transfers the heat absorbed by the inner ring longitudinally to the metal heat-conducting outer ring 1053. Its design of passing through the cable inner shell 102 and the cable outer shell 101 breaks the barrier of heat transfer caused by the multi-layer shell, allowing heat to cross the structural barrier; the metal heat-conducting outer ring 1053 serves as the final heat dissipation terminal, releasing heat to the external environment. This "point-to-point" conduction path from the core heat point to the external environment greatly shortens the heat transfer distance and significantly improves the heat dissipation efficiency compared to the traditional cable's reliance on natural heat dissipation from the shell, providing a key guarantee for the safe operation of the cable.

[0042] It is understandable that the solid insulating material filled in the outer shell cavity 1011 and the inner shell cavity 1021 plays a "dual role" in cable operation, not only assuming the basic function of electrical insulation, but also playing an irreplaceable role in heat management. From the perspective of electrical safety, these materials can effectively isolate the live cable 103, the neutral cable 104 from the cable inner shell 102, and the cable outer shell 101, preventing current leakage from causing electric shock or short circuit accidents, and are the core elements to ensure the insulation performance of the cable. From the perspective of heat transfer, this type of solid insulating material usually has a low thermal conductivity coefficient, which can reduce the disordered diffusion of heat inside the cavity. If the cavity is in a hollow state, the heat will flow freely in the cavity, not only unable to be concentrated and directed to the metal heat conductor, but may also cause local heat accumulation. After filling with insulating material, the heat will be confined to a specific area and can only be transferred outward along the efficient path of the metal heat conductor, thereby forming a "directional heat dissipation" effect with the metal heat conductor. At the same time, the solid material can also support the cable inner shell 102 and the cable outer shell 101, preventing the shell from being deformed due to external pressure, and indirectly protecting the structural integrity of the metal heat conductor. It is understandable that the metal heat-conducting inner ring 1051 is made of flexible metal material and is in close contact with the FireWire cable 103. It is a humanized design that fully considers the actual use scenario of the cable. During the laying and use of the cable, it is inevitable to encounter bending, folding, or even slight twisting. Especially in some electrical environments that need to be frequently moved or adjusted, the deformation of the cable is more common. If the metal heat-conducting inner ring is made of rigid material, it is very easy to create a gap between it and the FireWire cable 103 when the cable is bent, resulting in the ineffective transfer of heat, and it may even break due to the stress generated by the deformation. Flexible metal materials represented by metallic copper have excellent ductility and plasticity, and can bend synchronously with the deformation of the FireWire cable 103, always maintaining a close fit with the surface of the cable, and ensuring the continuity of heat conduction. This design allows the cable to have efficient heat dissipation capabilities while retaining the flexibility of traditional cables, greatly broadening its scope of application. It's understandable that the metal heat-conducting pipe 1052 is made of a flexible metal material to adapt to the dynamic changes in the cable's overall structure and ensure a consistently unobstructed heat conduction path. As a key component connecting the metal heat-conducting inner ring 1051 and the metal heat-conducting outer ring 1053, the metal heat-conducting pipe 1052 must pass through the cable's inner casing 102 and outer casing 101. This places it in a unique position, bridging the gap between the upper and lower casings—it must both absorb heat from the inner ring and overcome the constraints of the outer casing structure. When the cable undergoes deformations such as bending and stretching, the heat-conducting pipe passing through the inner and outer casings is subject to stresses from different directions: if the cable bends to one side, the portion of the pipe near the inner side of the bend is squeezed, while the portion outside is stretched. The ductility of the flexible material comes into play here, counteracting these stresses through slight deformation, preventing the pipe from breaking or detaching from the inner and outer rings. In contrast, a rigid material would be susceptible to cracking or even breaking under frequent deformation, disrupting the heat conduction path and compromising the heat dissipation of the entire cable. It is understandable that the metal heat-conducting outer ring 1053 is made of rigid metal material and embedded in the cable housing 101. It is the optimal choice after comprehensive consideration of adaptability to the external environment and heat dissipation stability. As the "last stop" for heat transfer to the outside world, the metal heat-conducting outer ring needs to be in direct contact with the cable housing 101 and the external environment, which requires it to have sufficient structural strength: during the cable laying process, it may rub against objects such as the ground and walls; in long-term use, it may also be affected by external forces such as extrusion and collision. Rigid metal materials such as metal steel, with their high hardness and wear resistance, can effectively resist these external damages and protect the heat-conducting outer ring itself and the heat-conducting pipe connected to it. At the same time, the design of being embedded in the cable housing 101 allows it to form a stable overall structure with the housing, avoiding displacement due to external forces, ensuring that heat can be continuously and stably transferred from the heat-conducting pipe to the outer ring, and heat dissipation is completed through the contact between the outer ring and the air, ensuring the reliability of the entire heat dissipation system. It is understandable that the uniform embedding of several metal heat conductors 105 into the cable 100 at a certain spacing is a scientific solution designed based on the heat distribution characteristics of the FireWire cable 103. During cable operation, when current passes through the FireWire cable 103, heat is generated due to resistance, and the heat will gradually accumulate along the length of the cable. If heat conductors are only installed in one or a few locations, heat will continue to accumulate in areas where heat conductors are not installed, forming local high temperatures. Over time, this may cause the insulation layer in that area to age faster and even pose a safety hazard. The evenly distributed heat conductors can act like "relay stations," taking on the heat dissipation task at different locations of the FireWire cable 103: each heat conductor is responsible for absorbing and dissipating the heat at its location, allowing the heat to be "intercepted" in sections during the transfer process to avoid concentration in a single area. In addition, the uniform spacing ensures that the heat dissipation points on the cable casing 101 are evenly distributed, allowing the outside air to exchange heat with multiple outer rings at the same time, further improving the heat dissipation efficiency, keeping the temperature of the entire cable within a safe range, and extending its service life.

[0043] It should be noted that the outer surface of the metal heat-conducting outer ring 1053 is provided with protrusions.

[0044] It is understandable that the outer surface of the metal heat-conducting outer ring 1053 is provided with raised points. From the basic principle of heat exchange, the heat exchange efficiency between an object and the air is closely related to the contact area. The larger the contact area, the more heat is transferred per unit time. The metal heat-conducting outer ring 1053 serves as the final carrier for releasing heat to the outside world. The raised points on its outer surface can significantly increase the contact area with the air. Compared with a smooth outer surface, the presence of the raised points creates more "heat dissipation angles" on the outer ring surface. The sides and top of each raised point can become new heat dissipation areas, which is like "building" countless small heat dissipation platforms on the originally flat heat dissipation surface, allowing heat to have more channels to transfer outward. The design of the raised points can also effectively disrupt the airflow state on the outer ring surface, improving the air cooling effect. When air flows over the smooth outer ring surface, it tends to form a laminar flow, with the relative motion between the airflow and the surface relatively gentle, allowing heat to transfer only through slow convection. However, when the airflow encounters the raised points, eddies and turbulence form around them. This turbulent airflow allows for more complete contact with the outer ring surface, breaking up the previously static air boundary layer and accelerating the diffusion of heat from the outer ring surface into the air. This airflow disturbance is particularly important under natural air cooling conditions, allowing limited air flow to achieve greater heat dissipation efficiency. Even in environments with relatively poor ventilation, the raised points can guide airflow to form localized circulation, reducing the time heat remains on the surface. In addition, the provision of the raised points can also enhance the structural strength and wear resistance of the metal heat-conducting outer ring 1053. Since the outer ring is made of rigid metal material, it itself has a certain impact resistance, and the presence of the raised points is equivalent to forming a layer of "protective protrusions" on its outer surface. When the cable is subjected to a slight external collision or friction, the raised points will first contact the external object, thereby reducing the wear on the surface of the outer ring body. At the same time, the three-dimensional structure formed by the raised points and the outer ring body can disperse external forces and avoid deformation of the outer ring caused by local stress concentration. This is crucial to maintaining the integrity of the heat dissipation structure. Once the outer ring surface is dented due to wear or collision, it will not only reduce the heat dissipation area, but may also affect the stability of the connection with the metal heat-conducting tube 1052, thereby interrupting the heat transfer path.

[0045] It can be understood that, through the arrangement of several metal heat conductors 105, the metal heat conductive inner ring 1051 is directly and tightly wrapped around the outside of the live cable 103, and can contact the heat source at the first time, thereby minimizing the heat loss in the initial stage of transfer; the metal heat conductive pipe 1052 is like a "heat channel", which transfers the heat absorbed by the inner ring to the metal heat conductive outer ring 1053 longitudinally, and its design of passing through the cable inner shell 102 and the cable outer shell 101 breaks the barrier of the multi-layer shell to heat transfer, allowing heat to cross the structural barrier; the metal heat conductive outer ring 1053 serves as the final heat dissipation terminal, releasing heat to the external environment.

[0046] 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.

[0047] 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 heat dissipation cable with metal thermal conductivity, characterized in that: It includes a cable (100) and a plurality of metal heat conductors (105); One end of the cable (100) is connected to the power supply end, and the other end of the cable (100) is connected to the power consumption end; The plurality of metal heat conductors (105) are evenly embedded in the cable (100) at a certain interval.

2. The heat dissipation cable with metal thermal conductivity according to claim 1, characterized in that: The cable (100) comprises: a cable outer shell (101), an outer shell cavity (1011), a cable inner shell (102), an inner shell cavity (1021), a live wire cable (103) and a neutral wire cable (104); The live cable (103) and the neutral cable (104) are arranged inside the cable inner shell (102); The cable inner shell (102) is arranged inside the cable outer shell (101); The housing cavity (1011) is between the cable housing (101) and the cable inner housing (102); The inner shell cavity (1021) is between the cable inner shell (102) and the live cable (103), and between the cable inner shell (102) and the neutral cable (104); The outer shell cavity (1011) and the inner shell cavity (1021) are filled with solid insulating material; The live wire cable (103) comprises a live wire core (1031) and a live wire insulation sleeve (1032); The neutral wire cable (104) comprises a neutral wire core (1041) and a neutral wire insulation sleeve (1042).

3. The heat dissipation cable with metal thermal conductivity according to claim 2, characterized in that: Any one of the plurality of metal heat conductors (105) comprises a metal heat conductive inner ring (1051), a metal heat conductive connecting pipe (1052), and a metal heat conductive outer ring (1053); The metal heat-conducting inner ring (1051) is tightly wrapped around the outside of the live cable (103); One end of the metal heat-conducting pipe (1052) is connected to the metal heat-conducting inner ring (1051), and the other end of the metal heat-conducting pipe (1052) is connected to the metal heat-conducting outer ring (1053); the metal heat-conducting pipe (1052) passes through the cable inner shell (102) and the cable outer shell (101); The metal heat-conducting outer ring (1053) is embedded in the cable housing (101).

4. The heat dissipation cable with metal thermal conductivity according to claim 3, characterized in that: The metal heat-conducting inner ring (1051) and the metal heat-conducting connecting pipe (1052) are composed of flexible metal materials.

5. The heat dissipation cable with metal thermal conductivity according to claim 4, characterized in that: The metal heat-conducting outer ring (1053) is composed of a rigid metal material.

6. The heat dissipation cable with metal thermal conductivity according to claim 5, characterized in that: The live wire insulation sleeve (1032) can prevent the live wire core (1031) from directly contacting the metal heat-conducting inner ring (1051).

7. The heat dissipation cable with metal thermal conductivity according to claim 6, characterized in that: The outer surface of the metal heat-conducting outer ring (1053) is provided with a protruding point.

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