High load flow overhead insulated cable with heat dissipation enhancement structure

Abstract

This invention discloses a high-current-carrying overhead insulated cable with a heat dissipation enhancement structure, relating to the field of overhead cable technology. A metal heat-absorbing arc plate is embedded inside the fiber rope buffer layer. Metal surrounding heat-absorbing arc sheets are equidistantly installed at both ends of the top of the metal heat-absorbing arc plate, and metal heat-conducting columns are equidistantly connected to the bottom ends of the metal surrounding heat-absorbing arc sheets. A heat-conducting metal arc plate is embedded inside the outer rubber protective layer, and a tightly fitted metal heat-absorbing plate is attached to the bottom surface of the outer rubber protective layer. This invention constructs a heat absorption and conduction path inside the cable, facilitating the conduction of heat generated by the cable core. It can effectively and quickly conduct heat dissipated from the core outwards. Furthermore, by bringing the tightly fitted metal heat-absorbing plate and the heat-conducting metal arc plate close together, the conducted heat can be discharged to the outside of the cable. High-efficiency heat dissipation fins increase the heat dissipation area, allowing the heat inside the cable to be quickly dissipated to the external environment.

Description

Technical Field

[0001] This invention relates to the field of overhead cable technology, specifically to a high current-carrying overhead insulated cable with a heat dissipation enhancement structure. Background Technology

[0002] Cable current carrying capacity refers to the amount of current that a cable line can carry when transmitting electrical energy. Under thermal stability conditions, the cable current carrying capacity when the cable conductor reaches the long-term allowable operating temperature is called the long-term allowable current carrying capacity of the cable. High current carrying capacity overhead insulated cables are special cables designed to meet the needs of high-power power transmission. They have excellent conductivity and mechanical strength and are widely used in urban power grid transformation, industrial power supply, and new energy access. These cables improve their current carrying capacity by optimizing conductor materials (such as high-purity aluminum or copper), increasing cross-sectional area, and improving insulation processes, while maintaining good weather resistance and safety. However, current high-current cables lack mechanisms for rapid heat dissipation, resulting in a large accumulation of heat inside the cable and poor overall heat dissipation. The high-temperature environment created by the large amount of heat accumulation inside the cable can affect the normal transmission capacity of the core. Therefore, this invention provides a high-current overhead insulated cable with a heat dissipation enhancement structure to meet people's needs. Summary of the Invention

[0003] This invention provides a high current-carrying overhead insulated cable with a heat dissipation enhancement structure, which can effectively solve the problem mentioned in the background art that the high current-carrying cable lacks a mechanism to quickly dissipate heat, causing a large amount of heat to accumulate inside the cable, resulting in poor overall heat dissipation and the high-temperature environment formed by a large amount of heat accumulation inside the cable affecting the normal transmission capacity of the core.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a high current-carrying overhead insulated cable with a heat dissipation enhancement structure, comprising a core, wherein the surface of the core is extruded and wrapped with a rubber insulation layer, a metal mesh shielding layer, an inner rubber protective layer, a fiber rope buffer layer and an outer rubber protective layer, characterized in that: a heat dissipation enhancement mechanism is provided inside the fiber rope buffer layer; The heat dissipation enhancement mechanism includes a metal heat-absorbing arc plate; A metal heat-absorbing arc plate is embedded inside the fiber rope buffer layer. Metal heat-absorbing arc sheets are installed at equal intervals at both ends of the top of the metal heat-absorbing arc plate. Metal heat-conducting columns are connected at equal intervals at the bottom of the metal heat-absorbing arc sheets. A heat-conducting metal arc plate is embedded inside the outer rubber protective layer. A metal heat-absorbing plate is attached to the bottom surface of the outer rubber protective layer, and high-efficiency heat dissipation fins are installed at equal intervals at the bottom end of the metal heat-absorbing plate. Both sides of the metal heat-absorbing plate are fixedly connected with splicing extension plates, and one end of each splicing extension plate is connected with a positioning protrusion. The surface of the outer rubber protective layer is symmetrically provided with positioning grooves.

[0005] According to the above technical solution, the metal heat-absorbing arc plate is closely attached to the surface of the inner rubber protective layer, the metal surrounding heat-absorbing arc sheet is located inside the fiber rope buffer layer, and the metal surrounding heat-absorbing arc sheet is symmetrically distributed on both sides of the surface of the inner rubber protective layer.

[0006] According to the above technical solution, the metal heat-conducting column penetrates the fiber rope buffer layer, the metal heat-conducting column is connected to the heat-conducting metal arc plate, the positions of the closely attached metal heat-absorbing plate and the heat-conducting metal arc plate correspond to each other, and the positioning protrusion is movably embedded in the interior of the positioning groove.

[0007] According to the above technical solution, arc-shaped snap-fit ​​blocks are equidistantly installed on the top surface of the outer rubber protective layer, and close-fitting splicing blocks are connected to both ends of the bottom of the arc-shaped snap-fit ​​blocks. Positioning notches are equidistantly opened on the bottom of the splicing extension plate, and a connecting stud is connected to the middle of the close-fitting splicing block. A locking knob is sleeved on the surface of the connecting stud. The end of the tightly fitted splicing block is provided with a mounting slot, the bottom of the tightly fitted splicing block is provided with an L-shaped support and stabilizing block, and the top of the L-shaped support and stabilizing block is connected with a mounting strip.

[0008] According to the above technical solution, the splicing block is tightly attached to the surface of the splicing extension plate, the connecting stud moves through the positioning notch, the locking knob is tightly attached to the surface of the bottom end of the splicing extension plate, and the mounting strip is movably engaged in the interior of the mounting slot.

[0009] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use. 1. Equipped with a heat dissipation enhancement mechanism, which utilizes a metal heat-absorbing arc plate, a metal surrounding heat-absorbing arc fin, and a metal heat-conducting column to construct a heat absorption and conduction path inside the cable. This facilitates the conduction of heat generated by the cable core and can effectively and quickly conduct heat dissipated from the core. The wide surrounding area results in better heat absorption and conduction. Furthermore, by closely adhering to the metal heat-absorbing plate and the heat-conducting metal arc plate, the conducted heat can be dissipated to the outside of the cable. The high-efficiency heat dissipation fins increase the heat dissipation area, allowing the heat inside the cable to be quickly dissipated to the external environment. Furthermore, the heat-conducting metal arc plate is located inside the outer rubber protective layer, allowing it to be close to the metal heat-absorbing plate for heat absorption and conduction. This fully ensures the sealing integrity of the outer rubber protective layer surface and prevents damage to the cable surface from affecting its normal use.

[0010] 2. The connecting studs and locking knobs work together to position and lock the splicing blocks and splicing extension plates, thus fixing the metal heat-absorbing plate and the arc-shaped snap-fit ​​block together. This locks the metal heat-absorbing plate and the arc-shaped snap-fit ​​block onto the surface of the cable, making the installation and fixing method simple. The positioning protrusions and positioning grooves work together to position and install the metal heat-absorbing plate and high-efficiency heat dissipation fins, allowing the metal heat-absorbing plate to quickly align with the heat-conducting metal arc plate. This also provides some auxiliary positioning for the arc-shaped locking block, preventing it from shifting during installation and affecting the normal locking installation. Simultaneously, the installation slots and mounting strips work together to securely attach the L-shaped support block to the bottom of the splicing block. The L-shaped support block provides stable support for the cable, protecting the high-efficiency heat dissipation fins and preventing them from being crushed when the cable is idle. This improves the stability of the cable placement. Furthermore, the L-shaped support block is easy to install and remove. It can be disassembled after the cable is installed overhead for reuse, fully embodying the energy-saving and environmentally friendly concept of material recycling.

[0011] 3. An anti-aging protection mechanism is provided, which uses an anti-aging covering metal arc plate and an inclined protective side baffle to cover the cable and prevent it from being exposed to sunlight for a long time, thus preventing the cable from aging and being damaged due to prolonged overhead exposure and extending the cable's service life by reducing sunlight exposure; The interlocking frame and positioning frame work together to position and secure the snap-fit ​​column. The compression spring improves the installation stability of the snap-fit ​​column and enhances the connection stability between the inclined protective side baffle and the interlocking extension plate. This allows the anti-aging covering metal arc plate and the inclined protective side baffle to be quickly installed and fixed on the top of the cable, making the installation method simple.

[0012] 4. The electric heating arc plate and power supply wiring work together to heat the cable when the power is turned on in cold, rainy or snowy weather. This provides heating protection for the anti-aging covered metal arc plate and prevents snow from accumulating on the surface of the anti-aging covered metal arc plate for a long time and causing heavy pressure on the cable. By utilizing the interplay of rubber connecting strips and arc-shaped elastic metal springs, the deformation flexibility of the left and right arc-shaped shields is improved. This facilitates the snap-fit ​​limiting block being snapped and fixed to the edge of the inclined protective side shield, enhancing the installation stability of the left and right arc-shaped shields. This allows them to cover the power supply wiring, providing rain protection and preventing damage from prolonged exposure to rainwater, thus improving safety during use.

[0013] In summary, by combining the heat dissipation enhancement mechanism and the anti-aging protection mechanism, on the one hand, the heat generated inside the cable is dissipated, improving the working environment of the core and allowing the cable to operate in a suitable temperature environment. On the other hand, by covering and protecting the cable, the rate of damage and erosion caused by the external environment is slowed down. Both internal and external protection functions are achieved, thereby improving the overall service life of the cable by improving the environment and mitigating the decline in cable performance. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the cable of the present invention; Figure 3 This is a schematic diagram of the installation structure of the right arc-shaped baffle of the present invention; Figure 4 This is a schematic diagram of the installation structure of the high-efficiency heat dissipation fins of the present invention; Figure 5 This is a schematic diagram of the installation structure of the metal-encircled heat-absorbing arc plate of the present invention; Figure 6 This is a schematic diagram of the installation structure of the metal heat-conducting column of the present invention; Figure 7 This is a schematic diagram of the heat dissipation enhancement mechanism of the present invention; Figure 8 This is a schematic diagram of the installation structure of the positioning protrusion of the present invention; Figure 9 This is a schematic diagram of the anti-aging protection mechanism of the present invention; The diagram labels are as follows: 1. Core; 2. Rubber insulation layer; 3. Metal mesh shielding layer; 4. Inner rubber protective layer; 5. Fiber rope buffer layer; 6. Outer rubber protective layer. 7. Heat dissipation enhancement mechanism; 701. Metal heat-absorbing arc plate; 702. Metal surrounding heat-absorbing arc fins; 703. Metal heat-conducting column; 704. Heat-conducting metal arc plate; 705. Closely attached metal heat-absorbing plate; 706. High-efficiency heat dissipation fins; 707. Splicing extension plate; 708. Positioning protrusion; 709. Positioning groove; 710. Arc-shaped snap-fit ​​block; 711. Closely attached splicing block; 712. Positioning notch; 713. Connecting stud; 714. Locking knob; 715. Mounting slot; 716. L-shaped support and stabilizing block; 717. Mounting strip; 8. Anti-aging protection mechanism; 801. Anti-aging covering metal arc plate; 802. Positioning arc groove; 803. Inclined protective side baffle; 804. Heat diffusion electric heating arc plate; 805. Power supply wiring; 806. Splicing square frame; 807. Compression spring; 808. Snap-fit ​​square column; 809. Positioning frame; 810. Splicing square groove; 811. Left arc-shaped baffle; 812. Right arc-shaped baffle; 813. Rubber connecting strip; 814. Arc-shaped elastic metal spring; 815. Snap-fit ​​limiting block. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] Example: Figure 1-9 As shown, the present invention provides a technical solution: a high current-carrying overhead insulated cable with a heat dissipation enhancement structure, comprising a core 1, a rubber insulation layer 2 extruded and wrapped on the surface of the core 1, a metal mesh shielding layer 3 installed on the surface of the rubber insulation layer 2, an inner rubber protective layer 4 extruded and wrapped on the surface of the metal mesh shielding layer 3, a fiber rope buffer layer 5 sleeved on the surface of the inner rubber protective layer 4, an outer rubber protective layer 6 extruded and wrapped on the surface of the fiber rope buffer layer 5, and a heat dissipation enhancement mechanism 7 provided inside the fiber rope buffer layer 5; The heat dissipation enhancement mechanism 7 includes a metal heat-absorbing arc plate 701, a metal surrounding heat-absorbing arc fin 702, a metal heat-conducting column 703, a heat-conducting metal arc plate 704, a metal heat-absorbing plate 705, a high-efficiency heat dissipation fin 706, a splicing extension plate 707, a positioning protrusion 708, a positioning groove 709, an arc-shaped snap-fit ​​block 710, a splicing block 711, a positioning notch 712, a connecting stud 713, a locking knob 714, a mounting slot 715, an L-shaped support and stabilizing block 716, and a mounting strip 717. A metal heat-absorbing arc plate 701 is embedded inside the fiber rope buffer layer 5. Metal surrounding heat-absorbing arc plates 702 are installed at equal intervals at both ends of the top of the metal heat-absorbing arc plate 701. The metal heat-absorbing arc plate 701 is in close contact with the surface of the inner rubber protective layer 4. The metal surrounding heat-absorbing arc plates 702 are located inside the fiber rope buffer layer 5 and are symmetrically distributed on both sides of the surface of the inner rubber protective layer 4. Metal heat-conducting columns 703 are connected at equal intervals at the bottom of the metal surrounding heat-absorbing arc plates 702. A heat-conducting metal arc plate 704 is embedded inside the outer rubber protective layer 6. The metal heat-conducting columns 703 penetrate the fiber rope buffer layer 5 and are connected to the heat-conducting metal arc plate 704. A metal heat-absorbing plate 705 is attached to the bottom surface of the outer rubber protective layer 6. The positions of the metal heat-absorbing plate 705 and the heat-conducting metal arc plate 704 correspond to each other. High-efficiency heat dissipation fins 706 are installed at equal intervals at the bottom end of the metal heat-absorbing plate 705. By using the metal heat-absorbing arc plate 701, the metal surrounding heat-absorbing arc plate 702 and the metal heat-conducting column 703 in cooperation, a heat absorption and conduction path is constructed inside the cable, which facilitates the conduction of heat generated by the core 1 inside the cable. It can effectively and quickly conduct the heat dissipated by the core 1 to the outside, and the surrounding range is wide, resulting in better heat absorption and conduction effect. By bringing the metal heat-absorbing plate 705 and the heat-conducting metal arc plate 704 close to each other, the conducted heat can be discharged to the outside of the cable. The high-efficiency heat dissipation fins 706 increase the heat dissipation area, so that the heat inside the cable can be quickly dissipated to the external environment. Furthermore, the heat-conducting metal arc plate 704 is located inside the outer rubber protective layer 6, which allows the metal heat-absorbing plate 705 to be close to it for heat absorption and conduction, thus fully ensuring the sealing integrity of the outer rubber protective layer 6 surface and preventing damage to the cable surface from affecting its normal use. Both sides of the metal heat-absorbing plate 705 are fixedly connected with splicing extension plates 707. One end of each splicing extension plate 707 is connected with a positioning protrusion 708. The surface of the outer rubber protective layer 6 is symmetrically provided with positioning grooves 709. The positioning protrusions 708 are movably embedded into the interior of the positioning grooves 709. Arc-shaped snap-fit ​​blocks 710 are equidistantly installed on the top surface of the outer rubber protective layer 6. Both ends of the bottom of the arc-shaped snap-fit ​​blocks 710 are connected to the close-fitting splicing blocks 711. The bottom of the splicing extension plate 707 is provided with positioning notches 712 equidistantly. The middle of the close-fitting splicing block 711 is connected to the connecting stud 713. The surface of the connecting stud 713 is fitted with a locking knob 714. The close-fitting splicing block 711 is close to the surface of the splicing extension plate 707. The connecting stud 713 moves through the positioning notch 712. The locking knob 714 is close to the bottom surface of the splicing extension plate 707. An installation slot 715 is provided at the end of the splicing block 711, and an L-shaped support block 716 is installed at the bottom of the splicing block 711. An installation strip 717 is connected to the top of the L-shaped support block 716. The installation strip 717 is movably engaged inside the installation slot 715. The connecting stud 713 and the locking knob 714 cooperate with each other to position and lock the splicing block 711 and the splicing extension plate 707, so that the metal heat absorption plate 705 and the arc-shaped locking block 710 are fixedly connected to each other, thereby locking and fixing the metal heat absorption plate 705 and the arc-shaped locking block 710 to the surface of the cable. The installation and fixing method is simple. The positioning protrusion 708 and positioning groove 709 work together to position and install the metal heat absorption plate 705 and the high-efficiency heat dissipation fins 706, allowing the metal heat absorption plate 705 to quickly align with the heat conduction metal arc plate 704. This also provides some auxiliary positioning for the arc-shaped locking block 710, preventing the arc-shaped locking block 710 from shifting during installation and affecting normal locking installation. Meanwhile, by using the mounting slot 715 and mounting strip 717 in cooperation, the L-shaped support and stabilizing block 716 can be fixedly attached to the bottom of the splicing block 711. The L-shaped support and stabilizing block 716 provides support and stability for the cable, supports and protects the high-efficiency heat dissipation fins 706, and prevents the high-efficiency heat dissipation fins 706 from being squeezed and damaged when the cable is idle, thus improving the stability of the cable placement. In addition, the L-shaped support and stabilizing block 716 is easy to install and remove. It can be removed after the cable is installed overhead for recycling, which fully reflects the energy-saving and environmental protection concept of material recycling. The top surface of the outer rubber protective layer 6 is provided with an anti-aging protection mechanism 8; The anti-aging protection mechanism 8 includes an anti-aging covering metal arc plate 801, a positioning arc groove 802, an inclined protective side baffle 803, a heat diffusion electric heating arc plate 804, a power supply wiring 805, a splicing square frame 806, a compression spring 807, a snap-fit ​​square column 808, a positioning frame 809, a splicing square groove 810, a left arc-shaped baffle 811, a right arc-shaped baffle 812, a rubber connecting strip 813, an arc-shaped elastic metal spring 814, and a snap-fit ​​limiting block 815; An anti-aging covering metal arc plate 801 is tightly installed on the top surface of the outer rubber protective layer 6. The inner wall of the anti-aging covering metal arc plate 801 is provided with positioning arc grooves 802 at equal intervals. Inclined protective side baffles 803 are symmetrically connected to both ends of the anti-aging covering metal arc plate 801. An anti-aging covered metal arc plate 801 has a heat diffusion electric heating arc plate 804 embedded inside. A power supply wire 805 is installed at one end of the top of the anti-aging covered metal arc plate 801. The position of the positioning arc groove 802 corresponds one-to-one with the position of the arc snap block 710. The arc snap block 710 is embedded inside the positioning arc groove 802. The power supply wire 805 is connected to an external power source through a controller. The power supply wire 805 is also connected to the heat diffusion electric heating arc plate 804. The bottom of the inclined protective side baffle 803 is equidistantly equipped with splicing frames 806. A compression spring 807 is fixedly installed inside the splicing frame 806. A snap-fit ​​square post 808 is installed at the bottom of the splicing frame 806. The top and bottom of the snap-fit ​​square post 808 are respectively embedded in the splicing frame 806 and the splicing square groove 810. The top of the snap-fit ​​square post 808 and the bottom of the compression spring 807 are tightly fitted. The surface of the splicing extension plate 707 is equidistantly equipped with positioning frames 809. A splicing square groove 810 is opened in the middle of the positioning frame 809. By using the anti-aging covering metal arc plate 801 and the inclined protective side baffle 803 in cooperation, the cable is covered and protected from sunlight, preventing the cable from aging and being damaged due to long-term overhead exposure. The service life of the cable is extended by reducing sunlight. The splicing frame 806 and the positioning frame 809 work together to position and snap the snap-fit ​​column 808. The compression spring 807 improves the installation stability of the snap-fit ​​column 808 and enhances the connection between the inclined protective side baffle 803 and the splicing extension plate 707. This allows the anti-aging covering metal arc plate 801 and the inclined protective side baffle 803 to be quickly installed and fixed on the top of the cable, making the installation method simple. A left arc-shaped shield 811 and a right arc-shaped shield 812 are symmetrically installed above the top of the anti-aging shield metal arc plate 801. A rubber connecting strip 813 is fixedly connected between the ends of the left arc-shaped shield 811 and the right arc-shaped shield 812. An arc-shaped elastic metal spring 814 is installed between the bottom of the left arc-shaped shield 811 and the right arc-shaped shield 812. A snap-fit ​​limiting block 815 is connected to the bottom end of both the left arc-shaped shield 811 and the right arc-shaped shield 812. The arc-shaped shield 811 and the right arc-shaped shield 812 cover the top of the power supply wiring 805. The snap-fit ​​limit block 815 is close to the bottom of the inclined protective side shield 803. The arc plate 804 and the power supply wiring 805 cooperate with each other by using heat diffusion electric heating. When the power is turned on in cold rainy and snowy weather, it plays a role in heating and protecting the anti-aging shield metal arc plate 801, preventing snow from accumulating on the surface of the anti-aging shield metal arc plate 801 for a long time and causing heavy pressure on the cable as a whole. By utilizing the rubber connecting strip 813 and the arc-shaped elastic metal spring 814 in cooperation, the deformation flexibility of the left arc-shaped shield 811 and the right arc-shaped shield 812 is improved. This facilitates the snap-fit ​​limiting block 815 to be snapped and fixed to the edge of the inclined protective side baffle 803, thereby improving the installation stability of the left arc-shaped shield 811 and the right arc-shaped shield 812. This allows them to cover the power supply wiring 805, providing rain protection and preventing damage from prolonged exposure to rainwater, thus improving safety in use.

[0018] The working principle and usage process of this invention are as follows: First, the surface of the core 1 is sequentially wrapped with a rubber insulation layer 2, a metal mesh shielding layer 3, and an inner rubber protective layer 4. The metal heat-absorbing arc plate 701 is tightly attached to the bottom surface of the inner rubber protective layer 4. The metal surrounding heat-absorbing arc plates 702 are symmetrically distributed on both sides of the surface of the inner rubber protective layer 4, which plays a role in surrounding and wrapping the inner rubber protective layer 4. The metal heat-conducting column 703 connects the metal heat-absorbing arc plate 701 and the heat-conducting metal arc plate 704. When the fiber rope buffer layer 5 and the outer rubber protective layer 6 are extruded, the metal heat-absorbing arc plate 701, the metal surrounding heat-absorbing arc plates 702, the metal heat-conducting column 703, and the heat-conducting metal arc plate 704 are wrapped. The heat-conducting metal arc plate 704 is located inside the outer rubber protective layer 6 near the surface. Then, the staff takes the metal heat-absorbing plate 705 and attaches it to the surface of the outer rubber protective layer 6. The two positioning protrusions 708 are aligned with the two positioning grooves 709 and embedded inside the positioning grooves 709, which plays a positioning role for the metal heat-absorbing plate 705, so that it corresponds to the position of the heat-conducting metal arc plate 704. Then, the staff takes the arc-shaped snap-fit ​​block 710 and covers the surface of the outer rubber protective layer 6, so that the snap-fit ​​splicing blocks 711 at both ends of its bottom can respectively snap to the two splicing extension plates 707. The position is adjusted so that the snap-fit ​​splicing block 711 corresponds to the position of the positioning notch 712. The connecting stud 713 passes through the positioning notch 712 and the locking knob 714 is tightened and fixed on the connecting stud 713, so that the snap-fit ​​splicing block 711 and the splicing extension plate 707 are fixedly connected to each other. Then, the arc-shaped snap-fit ​​block 710 and the metal heat-absorbing plate 705 are connected to each other and can be snapped and fixed to the surface of the cable. By using the mounting clip 717 to snap into the mounting slot 715, the L-shaped support block 716 is fixed to the bottom of the splicing block 711, which provides support and stability for the cable and prevents the high-efficiency heat dissipation fins 706 from rubbing against the ground or being damaged by long-term squeezing when the cable is placed. Next, the anti-aging covering metal arc plate 801 is placed on the top surface of the outer rubber protective layer 6. The arc-shaped snap-fit ​​block 710 is embedded in the positioning arc-shaped groove 802. The positions of the two inclined protective side baffles 803 correspond to the positions of the two splicing extension plates 707. When placing the anti-aging covering metal arc plate 801, the top of the snap-fit ​​square post 808 is inserted into the splicing square frame 806 to compress the compression spring 807. The bottom of the snap-fit ​​square post 808 is aligned and inserted into the splicing square groove 810. When the compression spring 807 extends and resets, it compresses and stabilizes the snap-fit ​​square post 808. As a result, the snap-fit ​​square post 808 is double-limited by the splicing square frame 806 and the positioning frame 809, making its snap-fit ​​more stable. Thus, the inclined protective side baffles 803 and the splicing extension plates 707 are fixedly connected, improving the installation stability of the anti-aging covering metal arc plate 801. The heat-diffusion electric heating arc plate 804 is connected to an external power controller via the power supply wiring 805. The staff takes the left arc-shaped shield 811 and the right arc-shaped shield 812 and pries them to both sides. The arc-shaped elastic metal spring 814 is stretched and deformed, and the two snap-fit ​​limiting blocks 815 are snapped and fixed to the bottom of the inclined protective side baffle 803. After being released, the arc-shaped elastic metal spring 814 elastically returns to its original position, which provides support and stability for the left arc-shaped shield 811 and the right arc-shaped shield 812, so that the left arc-shaped shield 811 and the right arc-shaped shield 812 can cover and fix the power supply wiring 805 to prevent rainwater or impurities from corroding it. When using overhead cables, the L-shaped support block 716 can be pulled out to one side. The overhead cable does not need to be supported and fixed. The L-shaped support block 716 can be reused after being removed and installed at the bottom of the idle cable to be placed later. The overhead cable is exposed to the external environment for a long time. The anti-aging shielding metal arc plate 801 and the inclined protective side baffle 803 both play the role of shading and protection, preventing the cable from being directly exposed to ultraviolet rays for a long time, which will accelerate the aging of the cable and improve the service life of the cable. In cold rain and snow, when snowflakes fall and accumulate on the surface of the anti-aging shielding metal arc plate 801, the heat diffusion electric heating arc plate 804 can be energized to generate heat, which plays the role of heating and protecting the anti-aging shielding metal arc plate 801. This allows the falling snowflakes to turn into water and drip away, preventing the accumulation of snow from putting downward pressure on the cable and causing the cable to break. During cable operation, the core 1 generates a large amount of heat. The metal heat-absorbing arc plate 701 and the metal surrounding heat-absorbing arc plate 702, which are close to and surround the outside of the core 1, absorb the heat generated and dissipated outward. The metal heat-absorbing arc plate 701, the metal surrounding heat-absorbing arc plate 702, the metal heat-conducting column 703, and the heat-conducting metal arc plate 704 form a heat transfer path inside the cable, allowing the heat generated by the core 1 to be conducted from the inside of the cable to the outer rubber protective layer 6 near the surface. At the same time, the metal heat-absorbing plate 705, which is close to the surface of the outer rubber protective layer 6 and corresponds to the position of the heat-conducting metal arc plate 704, absorbs the conducted heat. The heat is then quickly dissipated to the external environment using the high-efficiency heat dissipation fins 706, which greatly improves the heat dissipation efficiency and ensures the integrity of the cable surface.

[0019] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high current-carrying overhead insulated cable with a heat dissipation enhancement structure, comprising a core (1), wherein the surface of the core (1) is extruded and wrapped with a rubber insulation layer (2), a metal mesh shielding layer (3), an inner rubber protective layer (4), a fiber rope buffer layer (5), and an outer rubber protective layer (6), characterized in that: The fiber rope buffer layer (5) is provided with a heat dissipation enhancement mechanism (7). The heat dissipation enhancement mechanism (7) includes a metal heat-absorbing arc plate (701). The fiber rope buffer layer (5) is embedded with a metal heat-absorbing arc plate (701). Metal heat-absorbing arc plates (702) are installed at equal intervals at both ends of the top of the metal heat-absorbing arc plate (701). Metal heat-conducting columns (703) are connected at equal intervals at the bottom of the metal heat-absorbing arc plates (702). The outer rubber protective layer (6) is embedded with a heat-conducting metal arc plate (704). The outer rubber protective layer (6) has a metal heat-absorbing plate (705) attached to the bottom surface, and high-efficiency heat dissipation fins (706) are installed at equal intervals at the bottom end of the metal heat-absorbing plate (705). Both sides of the metal heat-absorbing plate (705) are fixedly connected with splicing extension plates (707), and one end of each splicing extension plate (707) is connected with a positioning protrusion (708). The surface of the outer rubber protective layer (6) is symmetrically provided with positioning grooves (709).

2. The high current-carrying overhead insulated cable with a heat dissipation enhancement structure according to claim 1, characterized in that, The metal heat-absorbing arc plate (701) is closely attached to the surface of the inner rubber protective layer (4), the metal surrounding heat-absorbing arc plate (702) is located inside the fiber rope buffer layer (5), and the metal surrounding heat-absorbing arc plate (702) is symmetrically distributed on both sides of the surface of the inner rubber protective layer (4).

3. A high current-carrying overhead insulated cable with a heat dissipation enhancement structure according to claim 1, characterized in that, The metal heat-conducting column (703) penetrates the fiber rope buffer layer (5). The metal heat-conducting column (703) is connected to the heat-conducting metal arc plate (704). The positions of the closely attached metal heat-absorbing plate (705) and the heat-conducting metal arc plate (704) correspond to each other. The positioning protrusion (708) is movably embedded in the interior of the positioning groove (709).

4. A high current-carrying overhead insulated cable with a heat dissipation enhancement structure according to claim 1, characterized in that, The top surface of the outer rubber protective layer (6) is equidistantly fitted with arc-shaped snap-fit ​​blocks (710), and both ends of the bottom of the arc-shaped snap-fit ​​blocks (710) are connected with close-fitting splicing blocks (711). The bottom of the splicing extension plate (707) is provided with positioning notches (712) equidistantly. The middle of the close-fitting splicing block (711) is connected with a connecting stud (713), and a locking knob (714) is sleeved on the surface of the connecting stud (713). The end of the close-fitting splicing block (711) is provided with a mounting slot (715), the bottom of the close-fitting splicing block (711) is provided with an L-shaped support and stabilizing block (716), and the top of the L-shaped support and stabilizing block (716) is connected with a mounting strip (717).

5. A high current-carrying overhead insulated cable with a heat dissipation enhancement structure according to claim 4, characterized in that, The close-fitting splicing block (711) is close to the surface of the splicing extension plate (707), the connecting stud (713) is movable through the positioning notch (712), the locking knob (714) is close to the surface of the bottom end of the splicing extension plate (707), and the mounting strip (717) is movablely engaged in the interior of the mounting slot (715).

6. A high current-carrying overhead insulated cable with a heat dissipation enhancement structure according to claim 4, characterized in that, The surface of the top of the outer rubber protective layer (6) is provided with an anti-aging protection mechanism (8). The anti-aging protection mechanism (8) includes an anti-aging covering metal arc plate (801). The surface of the top of the outer rubber protective layer (6) is fitted with an anti-aging covering metal arc plate (801). The inner wall of the anti-aging covering metal arc plate (801) is provided with positioning arc grooves (802) at equal intervals. The two ends of the anti-aging covering metal arc plate (801) are symmetrically connected with inclined protective side baffles (803). The heat diffusion electric heating arc plate (804) is embedded inside the anti-aging covering metal arc plate (801), and a power supply wire (805) is installed at one end of the top of the anti-aging covering metal arc plate (801). The bottom of the inclined protective side baffle (803) is equidistantly equipped with splicing frames (806), and a compression spring (807) is fixedly installed inside the splicing frame (806). A snap-fit ​​square post (808) is installed at the bottom of the splicing frame (806). A positioning frame (809) is equidistantly installed on the surface of the splicing extension plate (707), and a splicing square groove (810) is opened in the middle of the positioning frame (809).

7. A high current-carrying overhead insulated cable with a heat dissipation enhancement structure according to claim 6, characterized in that, The position of the positioning arc groove (802) corresponds one-to-one with the position of the arc snap block (710). The arc snap block (710) is embedded inside the positioning arc groove (802). The power supply wire (805) is connected to the external power supply through the controller. The power supply wire (805) is connected to the heat diffusion electric heating arc plate (804).

8. A high current-carrying overhead insulated cable with a heat dissipation enhancement structure according to claim 6, characterized in that, The top and bottom of the snap-fit ​​column (808) are respectively embedded inside the splicing frame (806) and the splicing groove (810), and the top of the snap-fit ​​column (808) and the bottom of the compression spring (807) are tightly fitted together.

9. A high current-carrying overhead insulated cable with a heat dissipation enhancement structure according to claim 6, characterized in that, A left arc-shaped shield (811) and a right arc-shaped shield (812) are symmetrically installed on the top of the anti-aging shield metal arc plate (801). A rubber connecting strip (813) is fixedly connected between the ends of the left arc-shaped shield (811) and the right arc-shaped shield (812). An arc-shaped elastic metal spring (814) is installed between the bottom of the left arc-shaped shield (811) and the right arc-shaped shield (812). A snap-fit ​​limiting block (815) is connected to the bottom of both the left arc-shaped shield (811) and the right arc-shaped shield (812).

10. A high current-carrying overhead insulated cable with a heat dissipation enhancement structure according to claim 9, characterized in that, The left arc-shaped shield (811) and the right arc-shaped shield (812) cover the top of the power supply wiring (805), and the snap-fit ​​limiting block (815) is in close contact with the bottom of the inclined protective side baffle (803).

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