A multimode heat dissipating high strength polyethylene cable

Abstract

The application discloses a multi-mode heat dissipation high-strength polyethylene cable, which comprises, from outside to inside, an outer sheath, a plurality of first reinforcing cladding layers, a plurality of second reinforcing cladding layers, a spiral heat conduction plate, a heat conduction cladding layer and a cable core unit, the cable core unit comprises, from outside to inside, an inner sheath, a shielding layer and a flame-retardant layer, and the flame-retardant layer is provided with a plurality of filling units and a plurality of wire cores. The cable has the advantages that the cable core unit is externally provided with a first reinforcing unit, a second reinforcing unit and an outer sheath, so that the structural strength, voltage resistance and tensile resistance of the cable are higher. The cable has two heat dissipation modes, namely air cooling and liquid cooling, so that the heat dissipation performance is improved. The cable is embedded with the metal heat conduction cladding layer and the spiral heat conduction plate, so that the heat generated by the cable core unit can be quickly conducted to the heat conduction cladding layer and the spiral heat conduction plate.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and more specifically, to a multi-mode heat dissipation high-strength polyethylene cable. Background Technology

[0002] Cables are widely used in various fields, such as power transmission, communications, control systems, industrial automation, and aerospace. In power transmission, cables are responsible for transmitting electrical energy generated by power plants to power-consuming areas, achieving efficient and safe power supply. In communications, cables serve as a medium for information transmission, supporting the smooth transmission of various multimedia information such as audio, video, and data.

[0003] Existing cables, when faced with complex application environments, often suffer damage or performance degradation due to insufficient structural strength or poor pressure and tensile strength. This can lead to safety hazards such as cable breakage and short circuits during use, affecting the stable operation of the power system. With increasing electricity demand, the current density carried by cables is constantly increasing, generating more heat. Existing cable heat dissipation methods are often insufficient to meet the demand for efficient heat dissipation. This leads to increased cable temperature, accelerated cable aging, shortened service life, and may even cause safety accidents such as fires. In some cables using liquid cooling, the heat-conducting fluid may directly contact the cable core unit, causing corrosion and damage. This not only reduces cable performance but may also create safety hazards. Furthermore, if leaks in the cable are not detected and addressed promptly, they may lead to internal short circuits and decreased insulation performance. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provide a multi-mode heat dissipation high-strength polyethylene cable.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cable comprising an outer sheath, multiple first reinforcing layers, multiple second reinforcing layers, a spiral heat-conducting plate, a heat-conducting layer, and a cable core unit, wherein the cable core unit comprises an inner sheath, a shielding layer, and a flame-retardant layer, wherein the flame-retardant layer has multiple filling units and multiple wire cores, and the wire cores comprise an insulation layer and a conductor.

[0006] Furthermore, the outer sheath, multiple first reinforcing cladding layers, multiple second reinforcing cladding layers, spiral heat-conducting plate, heat-conducting cladding layer, and cable core unit are distributed from the outside to the inside.

[0007] Furthermore, the cable core unit comprises, from the outside to the inside, an inner sheath, a shielding layer, and a flame-retardant layer. Furthermore, the wire core comprises, from the outside to the inside, an insulation layer and a conductor.

[0008] Furthermore, multiple first reinforcing cladding layers are distributed along the length direction of the cable core unit, and multiple second reinforcing cladding layers are distributed along the length direction of the cable core unit.

[0009] Furthermore, the thermally conductive cladding includes an inner thermally conductive surround plate, an outer thermally conductive surround plate, two end plates, and multiple radial partition plates. The two end plates are bonded together with adhesive. The thermally conductive cladding has multiple heat dissipation channels. The first reinforcing cladding includes two first reinforcing units. Each first reinforcing unit includes a first wrapping plate and multiple sets of inserts, each set of inserts having two inserts. The second reinforcing cladding includes two second reinforcing units. Each second reinforcing unit includes a second wrapping plate and multiple U-shaped limiting blocks. The multiple U-shaped limiting blocks are arranged in two rows and connected to both sides of the second wrapping plate respectively. Each U-shaped limiting block has two insertion holes.

[0010] Furthermore, each U-shaped limiting block has two insertion holes into which the insert block is inserted.

[0011] Furthermore, it also includes two end heat dissipation units; the end heat dissipation unit includes an end seat, a surrounding tube and multiple insertion tubes, the end seat has a cable passage, a first annular groove, a second annular groove and multiple connecting channels, and the end seat has a first tube section and a second tube section.

[0012] Furthermore, the end heat dissipation unit includes an end seat, a surrounding tube connected to the end seat, and a plurality of inserts fixedly connected to the end seat and inserted into the heat dissipation channel.

[0013] Furthermore, the end seat has a cable passage through which the cable core unit passes, a first annular groove, a second annular groove, and a connection channel for multiple connecting tubes and the second annular groove.

[0014] Furthermore, the end seat has a first tube portion communicating with the first annular groove and a second tube portion communicating with the second annular groove.

[0015] The surrounding tube has a detection groove, the end seat has a detection hole, and the cable passage has an inner annular groove and a connecting groove; a first mounting base is fixed to the surrounding tube, a temperature sensor is installed on the first mounting base, and a second mounting base is provided on the end seat, the second mounting base being connected to a liquid sensor via a connecting rod.

[0016] Furthermore, the cable passage has an inner annular groove and a connecting groove connecting the inner annular groove and the detection hole.

[0017] Furthermore, the temperature sensor is located within the detection groove.

[0018] Furthermore, the liquid sensor is located inside the detection hole.

[0019] In some embodiments, a control box is also fixed at the end seat, and a control unit and a wireless communication unit are installed in the control box. The temperature sensor and the liquid sensor are both connected to the control unit.

[0020] Thus, the temperature sensor can sense the temperature at the outer sheath, and the liquid sensor can detect whether there is leakage in the cable passage.

[0021] Furthermore, a connecting pipe is connected between the first pipe section and the second pipe section, and a valve unit is installed at the connecting pipe.

[0022] Therefore, after liquid cooling is completed, by opening the valve unit and using the second pipe section to blow out the heat dissipation airflow, a portion of the heat dissipation airflow will enter the first pipe section and enter the spiral heat dissipation channel, thereby drying the internal heat transfer fluid in time.

[0023] Furthermore, the first pipe of one of the two end heat dissipation units is connected to a coolant supply unit, and the first pipe of the other end heat dissipation unit is connected to a coolant recovery unit.

[0024] Furthermore, the first tube of one of the two end heat dissipation units is connected to a liquid outlet pipe, and the first tube of the other end heat dissipation unit is connected to a recovery pipe. Both the liquid outlet pipe and the recovery pipe are connected to a liquid storage container. The liquid outlet pipe has a first valve and a liquid pump, and the recovery pipe has a second valve.

[0025] This allows for the recycling of coolant.

[0026] Furthermore, a wind-cooled airflow generating unit is connected to the second pipe section of one of the two end heat dissipation units.

[0027] Furthermore, the outer sheath is extruded from polyethylene material.

[0028] Furthermore, the cable threading channel and the cable core unit are sealed and bonded together with adhesive.

[0029] Furthermore, an adhesive is provided between the insertion tube and the corresponding heat dissipation channel.

[0030] Furthermore, the surrounding tube surrounds the end of the outer sheath and is sealed and bonded to the outer sheath by adhesive.

[0031] Furthermore, the number of insertion tubes at the end seat is equal to the number of heat dissipation channels in the thermally conductive cladding.

[0032] Furthermore, the number of connection channels at the end seat is equal to the number of insertion tubes, and the two correspond one-to-one.

[0033] Furthermore, the inner side of the spiral heat-conducting plate abuts against the outer heat-conducting surrounding plate, and the outer side of the spiral heat-conducting plate abuts against the second surrounding plate.

[0034] This allows for the effective transfer of heat within the cable.

[0035] Furthermore, the end heat dissipation unit has eight tubes.

[0036] Furthermore, the eight cannulas are arranged in a ring with equal spacing.

[0037] Furthermore, the insertion hole extends to the outer circumferential surface of the second wrapping plate. One of the insertion blocks in each group is inserted into the insertion hole of one of the second reinforcement units of the corresponding second reinforcement layer, and the other insertion block is inserted into the insertion hole of the other second reinforcement unit. One of the two second reinforcement units of the second reinforcement layer has a positioning protrusion at its U-shaped limiting block, and the other second reinforcement unit has a positioning groove at its U-shaped limiting block that cooperates with the positioning protrusion.

[0038] Thus, the two first reinforcement units can be fixedly connected to the two second reinforcement units respectively, and the positioning protrusions and positioning grooves cooperate to achieve precise positioning.

[0039] Furthermore, the end plate connects the inner thermally conductive surround plate and the outer thermally conductive surround plate, and the radial partition plate connects the inner thermally conductive surround plate and the outer thermally conductive surround plate. The two end plates and the multiple radial partition plates divide the space between the inner thermally conductive surround plate and the outer thermally conductive surround plate into multiple heat dissipation channels.

[0040] This provides multiple heat dissipation channels, thus improving the cable's heat dissipation performance.

[0041] Furthermore, the cross-sections of both the first and second wrapping plates are semi-circular.

[0042] Furthermore, multiple heat dissipation channels are distributed in a ring with equal spacing.

[0043] Furthermore, the inner protective layer is made of polyethylene material; the flame retardant layer is a low-smoke halogen-free flame retardant layer; the insulation layer is a polyethylene insulation layer; and the filling unit is a flame retardant filling rope.

[0044] Furthermore, the spiral heat-conducting plate, the inner heat-conducting surrounding plate, the outer heat-conducting surrounding plate, the end plate, and the radial partition plate are all made of copper.

[0045] In some embodiments, the spiral heat-conducting plate, the inner heat-conducting surrounding plate, the outer heat-conducting surrounding plate, the end plate, and the radial partition plate are all made of copper alloy.

[0046] Therefore, the metal material is more conducive to conducting heat from the cable core unit to the heat-conducting cladding and spiral heat-conducting plate.

[0047] Furthermore, both the first and second reinforcing units are made of PVC material.

[0048] This improves the structural strength of the cable, as well as its pressure resistance and tensile strength.

[0049] Beneficial effects: 1. The cable of this application has a first reinforcing unit, a second reinforcing unit and an outer sheath outside the cable core unit, thereby having higher structural strength and pressure resistance and tensile strength.

[0050] 2. The cable of this application has two heat dissipation methods: air cooling and liquid cooling. When the temperature is generally high, it is cooled by air cooling; when the temperature is very high, it is cooled by liquid cooling, ensuring that the cable always stays within a safe operating temperature range.

[0051] 3. The cable of this application has an internal metal heat-conducting sheath and a spiral heat-conducting plate, which facilitates the rapid conduction of heat generated by the cable core unit to the heat-conducting sheath and the spiral heat-conducting plate, thereby improving heat dissipation performance.

[0052] 4. The cable of this application has a heat-conducting cladding between the spiral heat dissipation channel and the cable core unit, which effectively prevents the heat-conducting liquid from directly contacting the cable core unit, thereby preventing the heat-conducting liquid from corroding and damaging the cable core unit.

[0053] 5. When leakage occurs in the cable of this application, the liquid sensor can detect it in time and issue an alarm to remind maintenance personnel to carry out maintenance, thereby reducing the risk of cable failure. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the cable. Figure 2 This is a magnified view of region A; Figure 3 This is a magnified view of region B. Figure 4 First-view schematic diagram of cable component separation; Figure 5 This is a magnified view of region C; Figure 6 This is a magnified view of region D; Figure 7 This is a magnified view of region E. Figure 8 A second-view diagram illustrating the separation of cable components; Figure 9 This is a magnified view of region F; Figure 10 This is a schematic diagram showing a cross-section of the end heat dissipation unit of the cable. Figure 11 This is a magnified view of region G; Figure 12 This is a schematic diagram showing a cross-section of the end heat dissipation unit of a cable, separated from the end of the cable. Figure 13 This is a magnified view of region H; Figure 14 This is a magnified view of region I; Figure 15 This is a magnified view of region J.

[0055] Explanation of reference numerals in the attached drawings: Outer sheath 1; First reinforcing layer 2; First wrapping plate 2.1; Insert block 2.2; Second reinforcing layer 3; Second wrapping plate 3.1; U-shaped limiting block 3.2; Insertion hole 3.3; Positioning groove 3.4; Spiral heat-conducting plate 4; Heat-conducting layer 5; Inner heat-conducting surrounding plate 5.1; Outer heat-conducting surrounding plate 5.2; End plate 5.3; Radial partition plate 5.4; Inner protective layer 6.1; Shielding layer 6.2; Flame-retardant layer 6.3; Filling unit 6.4; Insulation layer 6. 5; Conductor 6.6; End seat 7.1; Cable passage 7.1.1; First annular groove 7.1.2; Second annular groove 7.1.3; Inner annular groove 7.1.4; Connecting groove 7.1.5; Detection hole 7.1.6; Enclosing tube 7.2; Insert tube 7.3; First tube section 7.4; Second tube section 7.5; Connecting tube 7.6; Valve unit 7.7; First mounting seat 8; Temperature sensor 8.1; Second mounting seat 9; Connecting rod 9.1; Liquid sensor 9.2. Detailed Implementation

[0056] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0057] This invention provides a multi-mode heat dissipation high-strength polyethylene cable as shown in the figure. From the outside to the inside, it includes an outer sheath 1, multiple first reinforcing layers 2, multiple second reinforcing layers 3, a spiral heat-conducting plate 4, a heat-conducting layer 5, and a cable core unit. The cable core unit includes an inner sheath 6.1, a shielding layer 6.2, and a flame-retardant layer 6.3 from the outside to the inside. The flame-retardant layer 6.3 has multiple filling units 6.4 and multiple wire cores. The wire core includes an insulation layer 6.5 and a conductor 6.6 from the outside to the inside. The multiple first reinforcing layers 2 are distributed along the length direction of the cable core unit, and the multiple second reinforcing layers 3 are distributed along the length direction of the cable core unit. The thermally conductive cladding 5 includes an inner thermally conductive surrounding plate 5.1, an outer thermally conductive surrounding plate 5.2, two end plates 5.3, and multiple radial partition plates 5.4. The two end plates 5.3 are bonded together with adhesive. The thermally conductive cladding 5 has multiple heat dissipation channels. The first reinforcing cladding 2 includes two first reinforcing units. The first reinforcing unit includes a first wrapping plate 2.1 and multiple sets of inserts 2.2. Each set of inserts has two inserts 2.2. The second reinforcing cladding 3 includes two second reinforcing units. The second reinforcing unit includes a second wrapping plate 3.1 and multiple U-shaped limiting blocks 3.2. The multiple U-shaped limiting blocks 3.2 are divided into two rows and connected to both sides of the second wrapping plate 3.1 respectively. Each U-shaped limiting block 3.2 has two insertion holes 3.3 into which the inserts 2.2 are inserted. The cable also includes two end heat dissipation units; each end heat dissipation unit includes an end seat 7.1, a surrounding tube 7.2 connected to the end seat 7.1, and a plurality of insertion tubes 7.3 fixedly connected to the end seat 7.1 and inserted into the heat dissipation channel. The end seat 7.1 has a cable passage 7.1.1 through which the cable core unit passes, a first annular groove 7.1.2, a second annular groove 7.1.3, and a connecting channel between the plurality of insertion tubes 7.3 and the second annular groove 7.1.3. The end seat 7.1 has a first tube portion 7.4 communicating with the first annular groove 7.1.2 and a second tube portion 7.5 communicating with the second annular groove 7.1.3. The surrounding tube 7.2 has a detection groove, the end seat 7.1 has a detection hole 7.1.6, the cable passage 7.1.1 has an inner annular groove 7.1.4 and a connecting groove 7.1.5 connecting the inner annular groove 7.1.4 and the detection hole 7.1.6; a first mounting seat 8 is fixed to the surrounding tube 7.2, and a temperature sensor 8.1 located in the detection groove is installed on the first mounting seat 8; a second mounting seat 9 is provided on the end seat 7.1, and a liquid sensor 9.2 located in the detection hole 7.1.6 is connected to the second mounting seat 9 via a connecting rod 9.1; a connecting tube 7.6 is connected between the first tube 7.4 and the second tube 7.5, and a valve unit 7.7 is installed on the connecting tube 7.6.

[0058] The outer sheath 1 is extruded from polyethylene material; the cable channel 7.1.1 and the cable core unit are sealed and bonded together with adhesive; the insertion tube 7.3 and the corresponding heat dissipation channel are bonded together with adhesive; the surrounding tube 7.2 surrounds the end of the outer sheath and is sealed and bonded to the outer sheath 1 with adhesive. The inner side of the spiral heat-conducting plate 4 abuts against the outer heat-conducting surrounding plate 5.2, and the outer side of the spiral heat-conducting plate 4 abuts against the second wrapping plate 3.1; the end heat dissipation unit has 8 insertion tubes 7.3. The insertion hole 3.3 extends to the outer circumferential surface of the second wrapping plate 3.1, one of the insertion blocks 2.2 of each group of insertion blocks is inserted into the insertion hole 3.3 of the second reinforcement unit of the corresponding second reinforcement layer 3, and the other insertion block 2.2 is inserted into the insertion hole 3.3 of the other second reinforcement unit; one of the two second reinforcement units of the second reinforcement layer 3 has a positioning protrusion at the U-shaped limiting block, and the other second reinforcement unit has a positioning groove 3.4 that cooperates with the positioning protrusion at the U-shaped limiting block. The end plate 5.3 connects the inner heat-conducting surround plate 5.1 and the outer heat-conducting surround plate 5.2, and the radial partition plate 5.4 connects the inner heat-conducting surround plate 5.1 and the outer heat-conducting surround plate 5.2. The two end plates 5.3 and the multiple radial partition plates 5.4 divide the space between the inner heat-conducting surround plate 5.1 and the outer heat-conducting surround plate 5.2 into multiple heat dissipation channels. The inner protective layer 6.1 is made of polyethylene material; the flame-retardant layer 6.3 is a low-smoke halogen-free flame-retardant layer; the insulating layer 6.5 is a polyethylene insulating layer; and the filling unit 6.4 is a flame-retardant filling rope. The spiral heat-conducting plate 4, the inner heat-conducting surround plate 5.1, the outer heat-conducting surround plate 5.2, the end plate 5.3, and the radial partition plate 5.4 are all made of copper; the first reinforcing unit and the second reinforcing unit are both made of PVC material.

[0059] Working Principle: The multi-mode heat dissipation high-strength polyethylene cable of this application, during production, first manufactures a cable core unit, a spiral heat-conducting plate, a heat-conducting sheath, multiple first reinforcing sheaths, and multiple second reinforcing sheaths. The heat-conducting sheath wraps around the cable core unit, and adhesive is used to bond and fix the two end plates of the heat-conducting sheath. Next, the spiral heat-conducting plate surrounds the heat-conducting sheath. Then, multiple second reinforcing sheaths are installed. The positioning protrusions and positioning grooves of the second reinforcing sheaths cooperate for precise positioning, and the length of the U-shaped limiting block matches the pitch of the spiral heat-conducting plate. Therefore, the U-shaped limiting block effectively prevents significant deformation of the spiral heat-conducting plate along the length of the cable core unit, ensuring that the spiral heat-conducting plate maintains a basically spiral installation (the pitch of each segment can be maintained under no external force). Next, multiple first reinforcing sheaths are installed, and the inserts and sockets cooperate. Each set of inserts effectively forms a fixed connection between two second reinforcing units. Finally, a polyethylene outer sheath is extruded onto the outside, thus forming a cable body. Next, the two ends of the cable are processed. Adhesive is applied to the inner side of the conduit and the surrounding tube, the end of the cable passage near the cable, the end of the first reinforcing sheath, the end of the second reinforcing sheath, the end of the outer sheath, and the circumferential surface of the end of the outer sheath. Then, the two end heat dissipation units are fixedly installed at the two ends of the cable, thereby achieving a sealed and fixed connection between the end heat dissipation units and the cable ends.

[0060] The cable of this application has higher strength and greater pressure and tensile strength due to the presence of a first reinforcing unit, a second reinforcing unit, and an outer sheath on the outer layer of the cable core unit. Furthermore, the inclusion of a metallic thermally conductive cladding and a spiral thermally conductive plate facilitates heat transfer from the cable core unit to these components. A temperature sensor can detect the temperature at the outer sheath. When the temperature is generally high, the valve unit closes, and air cooling is achieved through the second pipe section. The cooling airflow passes through multiple heat dissipation channels, resulting in excellent heat dissipation. When the temperature is extremely high, the valve unit closes, and liquid cooling is achieved through the first pipe section. The coolant passes through a spiral heat dissipation channel formed between the spiral thermally conductive plate and the thermally conductive cladding, achieving even better heat dissipation. Moreover, the presence of a thermally conductive cladding between the spiral heat dissipation channel and the cable core unit prevents the thermally conductive liquid from contacting the inner sheath, thus avoiding corrosion of the cable core unit surface. Furthermore, after liquid cooling is complete and the cable's operating temperature decreases, the valve unit can be opened, and cooling airflow can be blown through the second pipe. A portion of this cooling airflow will enter the first pipe and then the spiral cooling channel, effectively drying the heat transfer fluid inside. During liquid cooling, theoretically, because the end of the cable-passing channel near the cable has adhesive, there should be no liquid in the inner annular groove and connecting groove. When the liquid sensor detects liquid, it indicates a leak, meaning coolant has entered the cable-passing channel, thus prompting timely maintenance.

[0061] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention without departing from the scope defined by the claims.

Claims

1. A multi-mode heat dissipation high-strength polyethylene cable, characterized in that, It includes an outer sheath, multiple first reinforcing layers, multiple second reinforcing layers, a spiral heat-conducting plate, a heat-conducting layer, a cable core unit, and two end heat dissipation units. The cable core unit includes an inner sheath, a shielding layer, and a flame-retardant layer. The flame-retardant layer contains multiple filling units and multiple wire cores. The wire cores include an insulation layer and a conductor. The thermally conductive cladding includes an inner thermally conductive surround plate, an outer thermally conductive surround plate, two end plates, and multiple radial partition plates. The two end plates are bonded together with adhesive. The thermally conductive cladding has multiple heat dissipation channels. The first reinforcing cladding includes two first reinforcing units, each including a first wrapping plate and multiple sets of inserts, each set having two inserts. The second reinforcing cladding includes two second reinforcing units, each including a second wrapping plate and multiple U-shaped limiting blocks. The multiple U-shaped limiting blocks are arranged in two rows and connected to both sides of the second wrapping plate. Each U-shaped limiting block has two insertion holes. The end plates have multiple heat dissipation channels. The heating unit includes an end seat, a surrounding tube, and multiple insertion tubes. The end seat has a cable passage, a first annular groove, a second annular groove, and multiple connecting channels. The end seat has a first tube section and a second tube section. The surrounding tube has a detection groove, the end seat has a detection hole, and the cable passage has an inner annular groove and a connecting groove. A first mounting base is fixed to the surrounding tube, and a temperature sensor is installed on the first mounting base. The end seat has a second mounting base, and a liquid sensor is connected to the second mounting base via a connecting rod. A connecting tube connects the first tube section and the second tube section, and a valve unit is installed on the connecting tube.

2. The multi-mode heat dissipation high-strength polyethylene cable according to claim 1, characterized in that, The outer sheath is extruded from polyethylene material; the cable channel and the cable core unit are sealed and bonded together with adhesive; the insertion tube and the corresponding heat dissipation channel are bonded together with adhesive; the end of the surrounding tube surrounds the outer sheath and is sealed and bonded to the outer sheath with adhesive.

3. The multi-mode heat dissipation high-strength polyethylene cable according to claim 1, characterized in that, The inner side of the spiral heat-conducting plate abuts against the outer heat-conducting surrounding plate, and the outer side of the spiral heat-conducting plate abuts against the second surrounding plate; the end heat dissipation unit has 8 tubes.

4. The multi-mode heat dissipation high-strength polyethylene cable according to claim 1, characterized in that, The insertion hole extends to the outer circumferential surface of the second wrapping plate. One of the insertion blocks in each group is inserted into the insertion hole of the second reinforcement unit of the corresponding second reinforcement layer, and the other insertion block is inserted into the insertion hole of another second reinforcement unit. One of the two second reinforcement units of the second reinforcement layer has a positioning protrusion at the U-shaped limiting block, and the other second reinforcement unit has a positioning groove at the U-shaped limiting block that cooperates with the positioning protrusion.

5. The multi-mode heat dissipation high-strength polyethylene cable according to claim 1, characterized in that, The end plate connects the inner thermally conductive surround plate and the outer thermally conductive surround plate, and the radial partition plate connects the inner thermally conductive surround plate and the outer thermally conductive surround plate. The two end plates and multiple radial partition plates divide the space between the inner thermally conductive surround plate and the outer thermally conductive surround plate into multiple heat dissipation channels.

6. The multi-mode heat dissipation high-strength polyethylene cable according to claim 1, characterized in that, The inner protective layer is made of polyethylene material; the flame retardant layer is a low-smoke halogen-free flame retardant layer; the insulation layer is a polyethylene insulation layer; and the filling unit is a flame retardant filling rope.

7. The multi-mode heat dissipation high-strength polyethylene cable according to claim 1, characterized in that, The spiral heat-conducting plate, inner heat-conducting surrounding plate, outer heat-conducting surrounding plate, end plate, and radial partition plate are all made of copper; the first reinforcement unit and the second reinforcement unit are both made of PVC material.

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