Waterproof flexible composite cable

Abstract

The utility model discloses a waterproof flexible composite cable which comprises a plurality of cable cores and an outer sheath wrapping the cable cores, and the cross section of the cable is in a transverse strip shape. The cable core comprises a first cable core, a second cable core and a third cable core; the first cable core is a power line, the second cable core is a signal line, and the third cable core is a network line. The cable is reasonable in structural design, and has the following beneficial effects: the cable integrates the functions of power transmission, optical fiber communication and signal transmission, has good waterproof performance and flexibility, can adapt to various complex environmental conditions, improves the overall performance and reliability of the system, and reduces the construction and maintenance cost.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a waterproof flexible composite cable. Background Art

[0002] With the continuous development of modern technology, people's lives are increasingly demanding on infrastructure such as power and communications. However, in many application scenarios, such as outdoor, humid environments, and even underwater, the traditional practice of laying power cables, optical fiber cables, and signal cables separately has many disadvantages.

[0003] On the one hand, laying cables separately takes up a lot of space, increasing construction difficulty and cost. On the other hand, in some applications with strict space requirements or requiring efficient integration, independent cables are insufficient. Furthermore, in harsh environments, such as those exposed to moisture intrusion, the reliability and stability of traditional cables can be significantly affected, potentially leading to power outages and communication failures. Utility Model Content

[0004] The purpose of the utility model is to provide a waterproof flexible composite cable to solve the problem in the prior art that independent cables are difficult to meet the requirements of efficient integration.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides a waterproof flexible composite cable, comprising a plurality of cable cores and an outer sheath wrapping the cable cores, the plurality of cable cores are arranged side by side in the cable, and the cross-section of the cable is a horizontal strip; the cable core comprises a first cable core, a second cable core, and a third cable core; the first cable core is a power cord, the first cable core comprises a plurality of first cores and a first sheath wrapping the first core; the second cable core is a signal line, the second cable core comprises a plurality of second cores and a second sheath wrapping the second core; the third cable core is a network cable, the third cable core comprises a plurality of third cores and a third sheath wrapping the third core.

[0006] Furthermore, the cable also includes optical fiber and tensile steel wire, and the tensile steel wire is respectively arranged at the left and right ends of the cable; the cable structure from left to right is tensile steel wire, first cable core, optical fiber, second cable core, third cable core, tensile steel wire; the outer sheath is a layer of TPU sheath.

[0007] Furthermore, the number of the first cores is 3, and the three first cores are symmetrically arranged next to each other; the first cable core is also provided with a power cable ground conductor and a first filler, and the power cable ground conductor is arranged at the center of the three first cores; the first filler is arranged in the first sheath, in the gap between the first cores; the structure of the first core is, from the inside to the outside, a power line main conductor, a fire-resistant layer, and a first insulating layer; the structure of the first sheath is, from the inside to the outside, a double-sided insulating water-blocking tape, a first shielding layer, and a first protective layer.

[0008] Furthermore, the main conductor of the power cord is a Category 6 twisted soft copper conductor, which is formed by twisting multiple strands of copper wire; the main conductor of the power cord also includes aramid fiber, which is added together when the conductor is twisted to form the conductor; the fire-resistant layer is a double-sided synthetic mica tape.

[0009] Furthermore, the first insulation layer is a rubber insulation layer; the power cable ground conductor is a Category 6 twisted soft copper conductor, which is composed of multiple strands of copper wire; the first filler is a thermoplastic elastomer; the first shielding layer is a metal shielding layer, which is woven from tinned copper wire with a braiding density of ≥85%; and the first protective layer is a layer of EPDM rubber.

[0010] Furthermore, the number of the second cores is 2, and the two third cores are symmetrically arranged in parallel; the second cable core is also provided with a second filler, which is arranged in the second sheath, in the gap between the second cores; the structure of the second core is, from the inside to the outside, a signal line conductor, a double-sided synthetic mica tape, and a second insulating layer; the structure of the second sheath is, from the inside to the outside, a single-sided insulating water-blocking tape, a second shielding layer, and a second protective layer.

[0011] Furthermore, the signal line conductor is a Category 6 twisted soft copper conductor, which is composed of multiple strands of copper wire; the second insulation layer is a polyethylene insulation layer; the second filler is a water-blocking rope; the second shielding layer is an aluminum-plastic composite tape; and the second protective layer is a 105°C low-smoke halogen-free flame-retardant silane cross-linked polyolefin sheath.

[0012] Furthermore, the third cable core is also provided with a cross core, and the cross core is arranged in the third sheath to divide the third sheath into 4 areas of the same size; the number of the third cores is 4, and each of the third cores is respectively arranged in the area divided by the cross core and the third sheath; in the gap between the third cores; the structure of the third core is a network wire conductor and a phase-separated shielding layer from the inside to the outside; the structure of the third sheath is a third protective layer.

[0013] Furthermore, two network wire conductors are arranged side by side in the third wire core; the third wire core is also provided with a third insulating layer, and the third insulating layer is wrapped around the outer layer of the network wire conductor.

[0014] Furthermore, the network line conductor is a first type solid copper conductor; the third insulation layer is a layer of thermoplastic elastomer; the phase-separated shielding layer is a layer of longitudinally wrapped aluminum-plastic composite tape; the cross core is a PE cross core; and the third protective layer is a layer of 90°C low-smoke halogen-free thermoplastic flame-retardant polyolefin sheath.

[0015] In summary, the device structure of the present invention is rationally designed, and the application of the present invention's technical solutions has the following beneficial effects: The present invention comprises a plurality of cable cores and an outer sheath surrounding the cable cores, wherein the cable cores comprise a first cable core, a second cable core, and a third cable core; the first cable core serves as a power line, the second cable core serves as a signal line, and the third cable core serves as a network line. The present invention integrates power transmission, optical fiber communication, and signal transmission functions into one device, while also possessing excellent waterproof performance and flexibility, capable of adapting to various complex environmental conditions, improving the overall performance and reliability of the system, and reducing construction and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model waterproof flexible composite cable;

[0017] Explanation of the accompanying drawings: 1-main conductor of the power line; 2-aramid fiber; 3-fire-resistant layer; 4-first insulating layer; 5-ground conductor of the power cable; 6-first filler; 7-double-sided insulating water-blocking tape; 8-first shielding layer; 9-first protective layer; 10-optical fiber; 11-tensile steel wire; 12-outer sheath; 201-signal line conductor; 202-double-sided synthetic mica tape; 203-second insulating layer; 204-second filler; 205-single-sided insulating water-blocking tape; 206-second shielding layer; 207-second protective layer; 301-network line conductor; 302-third insulating layer; 303-phase-separated shielding layer; 304-cross core; 305-third protective layer. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention, but this does not constitute a limitation on the protection scope of the present invention.

[0019] In this utility model, for a clearer description, the following explanation is made: the observer faces the Figure 1For observation, the left front side of the observer is set as front, the right rear side of the observer is set as rear, the left rear side of the observer is set as left, the right front side of the observer is set as right, the top of the observer is set as top, and the bottom of the observer is set as bottom. It should be noted that the terms "front end", "rear end", "left side", "right side", "middle", "top", "bottom" and so on in the text indicate the direction or position relationship based on the direction or position relationship set in the drawings, which is only for the convenience of clearly describing the present invention, and does not indicate or imply that the structure or component referred to must have a specific direction or be constructed in a specific direction. Therefore, it cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", and "fourth" are only used for the purpose of clarifying or simplifying the description, and cannot be understood as indicating or implying relative importance or quantity.

[0020] See also Figure 1 The utility model provides a waterproof flexible composite cable, comprising a plurality of cable cores and an outer sheath 12 wrapping the cable cores, the plurality of cable cores being arranged side by side in the cable, and the cross-section of the cable being a transverse strip; the cable cores comprising a first cable core, a second cable core, and a third cable core; the first cable core is a power line, the first cable core comprising a plurality of first cores and a first sheath wrapping the first cores; the second cable core is a signal line, the second cable core comprising a plurality of second cores and a second sheath wrapping the second cores; the third cable core is a network line, the third cable core comprising a plurality of third cores and a third sheath wrapping the third cores.

[0021] In order to meet the needs of modern engineering for high efficiency, reliability and integration, the utility model cable came into being. The utility model integrates power transmission, optical fiber communication and signal transmission functions into one, and at the same time has good waterproof performance and flexibility, can adapt to various complex environmental conditions, improves the overall performance and reliability of the system, and reduces construction and maintenance costs.

[0022] As a preferred embodiment of the present invention, the cable also includes an optical fiber 10 and a tensile steel wire 11, and the tensile steel wire 11 is respectively arranged at the left and right ends of the cable; the cable structure from left to right is the tensile steel wire 11, the first cable core, the optical fiber 10, the second cable core, the third cable core, and the tensile steel wire 11; the outer sheath 12 is a layer of TPU sheath.

[0023] The optical fiber 10 realizes large-capacity and high-speed data transmission, has the characteristics of being immune to electromagnetic interference, stable signal, low loss, and capable of long-distance signal transmission.

[0024] The tensile steel wire 11 is formed by twisting a plurality of thin steel wires. One tensile steel wire 11 is added to each end of the cable to enhance the tensile resistance of the cable, improve the mechanical strength, prevent the cable from being broken, and extend the service life.

[0025] The outer sheath 12 is made of an extruded TPU material with high tensile and tear strength, effectively protecting the internal cable structure from damage caused by external forces such as pulling, friction, and puncture during installation and use. It also has excellent wear resistance, weather resistance, and chemical corrosion resistance.

[0026] Specifically, the number of first cores is 3, and the three first cores are symmetrically arranged next to each other; the first cable core is also provided with a power cable ground conductor 5 and a first filler 6, and the power cable ground conductor 5 is arranged at the center of the three first cores; the first filler 6 is arranged in the first sheath, in the gap between the first cores; the structure of the first core is, from the inside to the outside, a power line main conductor 1, a fire-resistant layer 3, and a first insulating layer 4; the structure of the first sheath is, from the inside to the outside, a double-sided insulating water-blocking tape 7, a first shielding layer 8, and a first protective layer 9.

[0027] Specifically, the power cable's main conductor 1 is a Class 6 stranded soft copper conductor, composed of multiple copper strands. It also includes aramid fiber 2, which is added to the conductor during twisting. The fire-resistant layer 3 is double-sided synthetic mica tape. Specifically, the first insulation layer 4 is a rubber insulation layer. The power cable's ground conductor 5 is a Class 6 stranded soft copper conductor, composed of multiple copper strands. The first filler 6 is a thermoplastic elastomer. The first shielding layer 8 is a metal shield, braided from tinned copper wires with a braid density of ≥85%. The first protective layer 9 is an EPDM rubber layer.

[0028] The power cable's main conductor (1) utilizes Category 6 stranded soft copper conductor, composed of multiple copper wires twisted together for excellent bending properties. The use of multiple fine copper wires, twisted in the same direction and then re-twisted, significantly enhances the cable's flexibility and bend resistance. Even with frequent and prolonged bending, the cable remains break-resistant. The addition of aramid fiber (2) further enhances the cable's toughness and significantly increases its resistance to breakage.

[0029] Aramid fiber 2 has extremely high strength and excellent flexibility. Adding it to the conductor strand can significantly improve the conductor's bending resistance. It is also resistant to high temperatures and corrosion, and can maintain good performance in harsh environments.

[0030] The fire-resistant layer 3 is wrapped with double-sided synthetic mica tape. This tape has an extremely high fire resistance and can maintain its structural integrity for extended periods in high-temperature environments. Even in the event of a fire, it provides reliable protection for the cable, ensuring uninterrupted power and signal transmission. This eliminates the risk of fire rapidly damaging the cable and disrupting the operation of critical equipment. It also offers excellent insulation properties, high mechanical strength, excellent moisture resistance, and is environmentally friendly and non-toxic.

[0031] The first insulation layer 4 is made of extruded rubber insulation. Rubber offers excellent elasticity and flexibility, allowing the cable to bend, twist, and stretch easily without damaging the insulation. This is crucial for cables that need to be installed in tight spaces or complex layouts. It allows for more flexible cable placement and adapts to varying installation environments. This excellent flexibility also reduces the risk of damage from mechanical stress during use, extending the cable's service life. It also offers excellent electrical insulation, corrosion resistance, water resistance, and abrasion resistance.

[0032] The power cable's ground conductor 5 utilizes a Category 6 stranded soft copper conductor, composed of multiple copper strands twisted together for excellent bending properties. A strand of the soft copper conductor is placed directly between the three power insulators. This new design, which abandons the traditional 3+1 structure, simplifies the cable production process. This eliminates the need for manufacturing and assembling a separate conductor, reducing production costs and cycle time. Quality control during production is also simplified, improving product consistency and reliability.

[0033] The first filler 6 is a thermoplastic elastomer. During waterproofing, a layer of thermoplastic elastomer (TPE) is extruded. This extrusion method allows the TPE material to embed itself into the gaps between the insulating cores, improving the cable's roundness and insulating properties. TPE also exhibits excellent flexibility and elasticity, adapting to cable deformation under varying temperatures and environments. It adheres tightly to the cable surface, providing enhanced waterproofing. It also exhibits excellent low-temperature resistance and is environmentally friendly and non-toxic.

[0034] The double-sided insulating water-blocking tape 7 is wrapped in overlapping layers, effectively preventing moisture from penetrating the cable both longitudinally and transversely. In humid environments or underwater, there's no need to worry about moisture intruding into the cable and damaging the conductors and insulation. It forms a reliable waterproof barrier, ensuring the cable's proper operation.

[0035] The first shielding layer 8 is braided with tinned copper wire, with a braid density of ≥85%. This tinned soft copper wire shield effectively shields against external electromagnetic interference. In modern environments with numerous electronic devices, electromagnetic interference can affect the signal transmission quality within the cable and even cause device failure. The tinned soft copper wire shielding layer blocks the intrusion of external electromagnetic fields, protecting the signals within the cable from interference. Furthermore, the shielding layer prevents the electromagnetic field within the cable from radiating outward, reducing interference with surrounding equipment.

[0036] The first protective layer 9 is made of an extruded EPDM material, which has good aging resistance and can resist erosion by ultraviolet rays, ozone, heat, chemicals, etc. During long-term use, the sheath is not prone to aging phenomena such as cracking, hardening, and brittleness, and maintains good flexibility and mechanical strength.

[0037] Specifically, the number of second cores is 2, and the two third cores are symmetrically arranged in parallel; the second cable core is also provided with a second filler 204, and the second filler 204 is arranged in the second sheath, in the gap between the second cores; the structure of the second core is, from the inside to the outside, a signal line conductor 201, a double-sided synthetic mica tape 202, and a second insulating layer 203; the structure of the second sheath is, from the inside to the outside, a single-sided insulating water-blocking tape 205, a second shielding layer 206, and a second protective layer 207.

[0038] Specifically, the signal line conductor 201 is a Category 6 twisted soft copper conductor, which is composed of multiple strands of copper wire; the second insulation layer 203 is a polyethylene insulation layer; the second filler 204 is a water-blocking rope; the second shielding layer 206 is an aluminum-plastic composite tape; and the second protective layer 207 is a 105°C low-smoke, halogen-free, flame-retardant silane cross-linked polyolefin sheath.

[0039] Signal line conductor 201: It uses Category 6 stranded soft copper conductor, which is made of multiple strands of copper wire and has good bending properties.

[0040] The cable is wrapped with double-sided synthetic mica tape 202, which has an extremely high fire resistance and can maintain its structural integrity for long periods of time in high-temperature environments. Even in the event of a fire, it provides reliable protection for the cable, ensuring uninterrupted power and signal transmission. There's no need to worry about fire quickly destroying the cable and affecting the operation of critical equipment.

[0041] The second insulation layer 203 is made of extruded polyethylene (PE). Polyethylene has extremely low water permeability, effectively preventing moisture intrusion. This creates a tight waterproof barrier, protecting the cable's interior from humid environments. This eliminates the risk of moisture penetrating the cable and causing electrical failure or damage.

[0042] The second filler 204 is a water-blocking rope. Water-blocking rope is characterized by its strong water absorption and high expansion rate. It absorbs water rapidly, expands rapidly, and forms a gel-like substance that blocks water seepage channels, thereby ensuring cable insulation safety. Furthermore, water-blocking rope is lightweight, clean, easy to lay, and connect, making it more environmentally friendly.

[0043] The single-sided insulating water-blocking tape 205 has the characteristics of high expansion pressure, fast expansion speed, good gel stability and good thermal stability, and prevents water and moisture from spreading longitudinally, thereby playing a water-blocking role.

[0044] The second shielding layer 206 is formed by overlapping and wrapping a layer of aluminum-plastic composite tape, which can enhance the shielding performance, prevent electromagnetic interference, protect signal transmission, and has a certain moisture-proof effect.

[0045] The second protective layer 207 is extruded with a layer of 105°C low-smoke, halogen-free, flame-retardant silane cross-linked polyolefin sheath material, which has good wear resistance, environmental resistance, weather resistance, corrosion resistance, low-temperature flexibility, tear resistance, etc.

[0046] Specifically, the third cable core is also provided with a cross core 304, which is arranged in the third sheath to divide the third sheath into 4 areas of equal size; the number of third cores is 4, and each third core is respectively arranged in the area divided by the cross core 304 and the third sheath; in the gap between the third cores; the structure of the third core from the inside to the outside is a network line conductor 301 and a phase-separated shielding layer 303; the structure of the third sheath is a third protective layer 305.

[0047] Specifically, the third core has two network conductors 301 arranged side by side. The third core also has a third insulation layer 302, which wraps around the outer layer of the network conductor 301. Specifically, the network conductor 301 is a Type 1 solid copper conductor; the third insulation layer 302 is a layer of thermoplastic elastomer; the phase-separated shielding layer 303 is a longitudinally wrapped aluminum-plastic composite tape; the cross core 304 is a PE cross core 304; and the third protective layer 305 is a 90°C low-smoke, halogen-free thermoplastic flame-retardant polyolefin sheath.

[0048] The network line conductor 301 adopts the first type of solid copper conductor, which has excellent conductivity and can efficiently transmit network signals; at the same time, it can ensure the stability and reliability of the signal during transmission, reduce signal attenuation and distortion, obtain a faster and more stable network connection, and meet the needs of high-speed data transmission.

[0049] The third insulation layer 302 is an extruded thermoplastic elastomer (TPE), which offers exceptional flexibility and elasticity, allowing the network cable to bend and twist easily without damage. During the wiring process, the cable routing can be flexibly adjusted to meet specific needs, adapting to various complex installation environments. TPE-insulated network cables exhibit excellent adaptability, whether in tight corners or in situations requiring frequent movement.

[0050] The phase-splitting shielding layer 303 is longitudinally wrapped with an aluminum-plastic composite tape, effectively shielding against external electromagnetic interference. In modern environments with numerous electronic devices, various electromagnetic signals can interfere with signal transmission within the network cable. This longitudinal aluminum-plastic composite tape prevents the intrusion of external electromagnetic fields, ensuring the purity and stability of the network signal. This configuration ensures a clearer and more stable network connection, reducing data transmission errors and packet loss.

[0051] The cross core 304 is made of PE material. Adding a cross core 304 during cabling provides stable internal structural support for the network cable. This eliminates the risk of deformation or twisting during production, transportation, and installation. It maintains the cable's shape and ensures the internal conductors are positioned relatively firmly, facilitating stable signal transmission.

[0052] The third protective layer 305 is extruded from a 90°C low-smoke, halogen-free, thermoplastic flame-retardant polyolefin sheathing material. This low-smoke, halogen-free sheathing material produces minimal smoke during combustion and contains no toxic or hazardous gases, such as halogens. This significantly reduces smoke hazards to personnel in emergencies such as fires, creating a better environment for escape and rescue, without the risk of smoke obstructing vision or causing serious harm.

[0053] In summary, the beneficial effects of the present invention are as follows:

[0054] 1. High functional integration

[0055] This composite cable integrates power transmission, fiber optic communications, and signal line functions, reducing wiring complexity and space usage. It eliminates the need to lay multiple cables with different functions separately, greatly simplifying the construction process and improving installation efficiency.

[0056] This integrated design is particularly important for places with limited space, such as narrow pipes and underground passages. It can effectively save space and provide more installation space for other equipment and facilities.

[0057] 2. Excellent waterproof performance

[0058] With excellent waterproof performance, it can operate stably in harsh environments such as wet and underwater. Whether it is soaked by rain, seeped by groundwater or accidentally immersed in water, it can effectively prevent moisture from invading the cable interior, protecting power and communication lines from damage.

[0059] This makes the composite cable suitable for various environments easily exposed to moisture, such as outdoors, underwater projects, basements, etc., expanding its application range.

[0060] 3. Good flexibility

[0061] Good flexibility makes the cable easy to bend and install. In complex wiring environments, it can be bent and laid according to actual needs without damaging the internal structure and function of the cable.

[0062] This flexibility also facilitates the transportation and storage of cables, reducing the risk of damage caused by excessive rigidity.

[0063] 4. High reliability

[0064] Due to the use of advanced manufacturing technology and materials, the composite cable has high reliability. It can maintain stable performance during long-term use and reduce the probability of failure.

[0065] For critical power and communication systems, high reliability is crucial to ensure continuous system operation and reduce maintenance costs and downtime.

[0066] 5. Low maintenance cost

[0067] The integrated design and high reliability reduce maintenance workload and costs. Instead of maintaining power cables, fiber optic cables, and signal cables separately, the composite cable requires centralized inspection and maintenance. When a fault does occur, it's easier to locate and repair the problem, shortening repair time and increasing system availability.

[0068] 6. This composite cable places a stranded soft copper conductor directly between three power insulators, eliminating the traditional 3+1 structure, which optimizes space utilization. In the traditional 3+1 structure, the fourth conductor is independent and takes up a certain amount of space. This new structure places the stranded soft copper conductor between the three power insulators, making more compact use of space. This is particularly advantageous for wiring environments with limited space, allowing more cables to fit within the same space or leaving more room for other equipment and facilities. The optimized structure makes the cable more compact and lightweight, making it easier to install and transport. It also improves cable flexibility: The stranded soft copper conductor is inherently flexible, and placing it between the three power insulators makes the cable more flexible. In applications requiring frequent bending or movement, this structure reduces stress concentration in the cable, lowering the risk of damage. It also makes bending and laying the cable easier, improving construction efficiency. This improved flexibility also helps extend the cable's service life and reduce failures caused by bending fatigue. Improved electrical performance: The new structure ensures more uniform electric field distribution within the cable, reducing localized electric field concentration. This helps improve the cable's electrical insulation performance and reduces the risk of breakdown. The close contact between the stranded soft copper conductor and the three electrical insulation strips reduces the effects of inductance and capacitance, improving the cable's transmission efficiency and signal quality. Simplified production: Abandoning the traditional 3+1 structure, the new design simplifies the cable's production process. This eliminates the need for manufacturing and assembly of a separate conductor, reducing production costs and cycle time. Quality control during production is also easier, improving product consistency and reliability.

[0069] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A waterproof flexible composite cable comprising a plurality of cable cores and an outer sheath wrapping the cable cores, characterized in that: Several of the cable cores are arranged side by side in a cable, and the cross section of the cable is in the shape of a transverse strip; The cable core includes a first cable core, a second cable core, and a third cable core; The first cable core is a power line, and the first cable core includes a plurality of first wire cores and a first sheath wrapping the first wire cores; The second cable core is a signal line, and the second cable core includes a plurality of second wire cores and a second sheath wrapping the second wire cores; The third cable core is a network cable, and the third cable core includes a plurality of third wire cores and a third sheath wrapping the third wire cores.

2. The waterproof flexible composite cable according to claim 1, characterized in that: The cable also includes optical fiber and tensile steel wire, and the tensile steel wire is respectively arranged at the left and right ends of the cable; the cable structure from left to right is tensile steel wire, first cable core, optical fiber, second cable core, third cable core, tensile steel wire; the outer sheath is a layer of TPU sheath.

3. The waterproof flexible composite cable according to claim 2, characterized in that: The number of the first cores is 3, and the three first cores are symmetrically arranged next to each other; the first cable core is also provided with a power cable ground conductor and a first filler, and the power cable ground conductor is arranged at the center of the three first cores; the first filler is arranged in the first sheath, in the gap between the first cores; the structure of the first core is, from the inside to the outside, a power line main conductor, a fire-resistant layer, and a first insulating layer; the structure of the first sheath is, from the inside to the outside, a double-sided insulating water-blocking tape, a first shielding layer, and a first protective layer.

4. The waterproof flexible composite cable according to claim 3, characterized in that: The main conductor of the power cord is a Category 6 twisted soft copper conductor, which is twisted together with multiple copper wires; the main conductor of the power cord also includes aramid fiber, which is added together when the conductor is twisted to form the conductor; the fire-resistant layer is a double-sided synthetic mica tape.

5. A waterproof flexible composite cable according to any one of claims 3-4, characterized in that: The first insulation layer is a rubber insulation layer; the power cable ground conductor is a Category 6 stranded soft copper conductor, which is composed of multiple strands of copper wire; the first filler is a thermoplastic elastomer; the first shielding layer is a metal shielding layer, which is woven from tinned copper wire with a braiding density of ≥85%; the first protective layer is a layer of EPDM rubber.

6. The waterproof flexible composite cable according to claim 1 or 2, characterized in that: The number of the second cores is 2, and the two third cores are symmetrically arranged in parallel; the second cable core is also provided with a second filler, which is arranged in the second sheath and in the gap between the second cores; the structure of the second core is, from the inside to the outside, a signal line conductor, a double-sided synthetic mica tape, and a second insulating layer; the structure of the second sheath is, from the inside to the outside, a single-sided insulating water-blocking tape, a second shielding layer, and a second protective layer.

7. The waterproof flexible composite cable according to claim 6, characterized in that: The signal line conductor is a Category 6 twisted soft copper conductor, which is composed of multiple strands of copper wire; the second insulation layer is a polyethylene insulation layer; the second filler is a water-blocking rope; the second shielding layer is an aluminum-plastic composite tape; and the second protective layer is a 105°C low-smoke, halogen-free, flame-retardant silane cross-linked polyolefin sheath.

8. The waterproof flexible composite cable according to claim 1 or 2, characterized in that: The third cable core is also provided with a cross core, which is arranged in the third sheath to divide the third sheath into 4 areas of the same size; the number of the third cores is 4, and each of the third cores is respectively arranged in the area divided by the cross core and the third sheath; in the gap between the third cores; the structure of the third core is a network wire conductor and a phase-separated shielding layer from the inside to the outside; the structure of the third sheath is a third protective layer.

9. The waterproof flexible composite cable according to claim 8, characterized in that: The third wire core is provided with two network wire conductors arranged side by side; the third wire core is also provided with a third insulating layer, and the third insulating layer is wrapped around the outer layer of the network wire conductor.

10. The waterproof flexible composite cable according to claim 9, characterized in that: The network line conductor is a first-type solid copper conductor; the third insulation layer is a layer of thermoplastic elastomer; the phase-separated shielding layer is a layer of longitudinally wrapped aluminum-plastic composite tape; the cross core is a PE cross core; and the third protective layer is a layer of 90°C low-smoke halogen-free thermoplastic flame-retardant polyolefin sheath.

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