Flame-retardant environment-friendly control flexible cable

Abstract

The utility model discloses a flame-retardant environment-friendly control flexible cable, which comprises a conductor, a low-smoke halogen-free flame-retardant polyolefin insulating layer is extruded outside the conductor, a copper wire shielding layer is woven outside the low-smoke halogen-free flame-retardant polyolefin insulating layer, a mildew-resistant layer is arranged outside the copper wire shielding layer, and the mildew-resistant layer is arranged outside the low-smoke halogen-free flame-retardant polyolefin insulating layer. The mildew-resistant layer is wrapped by a ceramic silicone rubber composite tape to form a wire core, the wire cores are twisted to form a cable core, the cable core is filled with a ceramic fire-resistant filling rope, carbon fibers are placed in the ceramic fire-resistant filling rope, a polyester tape is wrapped outside the cable core to fasten the cable core, and the polyester tape is wrapped outside the cable core. A carbon fiber filament protection layer is woven outside the polyester belt, and an outer sheath is wrapped outside the carbon fiber filament protection layer. The flame-retardant environment-friendly control flexible cable integrates various advanced materials and technologies, has excellent flame-retardant, environment-friendly, shielding, high-temperature-resistant, weather-resistant and mechanical properties, and can meet the use requirements in various complex environments.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a flame-retardant and environmentally friendly control flexible cable. Background Technology

[0002] Flame-retardant and environmentally friendly control flexible cables are cable products that combine flame retardancy, environmental friendliness, and flexibility, and are widely used in environments with high safety and environmental requirements. Flame-retardant and environmentally friendly control flexible cables are widely used in the following scenarios:

[0003] Densely populated areas, such as subways, hospitals, and high-rise buildings, have extremely high requirements for the flame retardancy and environmental performance of cables.

[0004] Industrial and electronic equipment: In industrial environments with complex electromagnetic conditions or in electronic equipment with high electromagnetic compatibility requirements, shielded flame-retardant and environmentally friendly control flexible cables can effectively prevent electromagnetic interference.

[0005] In the new energy sector, such as electric vehicles and new energy vehicles, flame-retardant and environmentally friendly control flexible cables are widely used due to their excellent high and low temperature resistance and environmental protection characteristics.

[0006] Advantages:

[0007] High safety: Low-smoke halogen-free materials do not release toxic gases when burning, reducing the harm of fire to people and equipment.

[0008] It is environmentally friendly: it does not contain harmful elements such as chlorine, bromine, and lead, and is in line with the trend of green manufacturing and sustainable development.

[0009] Strong mechanical properties: It has good flexibility and wear resistance, making it suitable for complex wiring environments.

[0010] With the continuous expansion of China's power industry, data communication industry, urban rail transit industry, automotive industry, and shipbuilding industry, the demand for control flexible cables is also growing rapidly. People are increasingly demanding higher standards for the safety and environmental friendliness of these cables, requiring a new type of cable that is completely free of harmful substances such as lead and cadmium, and whose combustion process does not release any toxic fumes, ensuring safety for both the environment and human health. Furthermore, cables are prone to mold growth in humid environments, leading to a reduction in cable lifespan. Our company has designed and developed a flame-retardant and environmentally friendly control flexible cable to meet current market demands. Utility Model Content

[0011] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a flame-retardant and environmentally friendly control flexible cable.

[0012] This utility model is achieved through the following technical solution:

[0013] A flame-retardant and environmentally friendly control flexible cable includes a conductor, a low-smoke halogen-free flame-retardant polyolefin insulation layer extruded over the conductor, a copper wire shielding layer woven over the low-smoke halogen-free flame-retardant polyolefin insulation layer, a mildew-resistant layer outside the copper wire shielding layer, a ceramicized silicone rubber composite tape wrapped around the mildew-resistant layer to form a core, the cores being twisted into a cable core, the cable core being filled and rounded with ceramicized fire-resistant filler rope, carbon fiber filaments being placed inside the ceramicized fire-resistant filler rope, a polyester tape wrapped around the cable core to secure it, a carbon fiber filament protective layer woven over the polyester tape, and an outer sheath covering the carbon fiber filament protective layer.

[0014] The conductor is a copper-core soft conductor.

[0015] The outer sheath is made of low-smoke, halogen-free, flame-retardant polyolefin material through extrusion.

[0016] A magnetic shielding layer is coated on the low-smoke, halogen-free, flame-retardant polyolefin insulation layer.

[0017] An anti-aging coating is applied to the outside of the outer sheath.

[0018] The mold-resistant layer is a chlorinated polyethylene layer, which is extruded onto the outside of the copper wire shielding layer.

[0019] The advantages of this utility model are: This utility model is a soft core cable that integrates low smoke, halogen-free, and flame-retardant characteristics. It is designed specifically for the high safety and environmental protection requirements of modern power systems and can be widely used in high-rise buildings, subways, tunnels, power stations and other places that require high safety and environmental protection.

[0020] This invention possesses excellent flame-retardant and environmentally friendly properties, maintains superior electrical performance under high-temperature conditions, and is harmless to the environment and human health. This product can be widely used in public transportation facilities such as subways, stations, and airports; industrial sectors such as petrochemicals, power, and steel; civil construction sectors such as commercial and residential buildings; and high-tech fields such as electronics, communications, and computers.

[0021] This utility model of flame-retardant and environmentally friendly control flexible cable integrates a variety of advanced materials and technologies, and has excellent flame-retardant, environmental protection, shielding, high temperature resistance, weather resistance and mechanical properties, which can meet the usage requirements in a variety of complex environments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0023] The present invention provides a flame-retardant and environmentally friendly control flexible cable in further detail below with reference to the accompanying drawings and through embodiments.

[0024] Example 1:

[0025] like Figure 1 As shown, a flame-retardant and environmentally friendly control flexible cable includes a conductor 1, which is a copper core flexible conductor. A low-smoke halogen-free flame-retardant polyolefin insulation layer 2 is extruded over the conductor 1. A copper wire shielding layer 3 is braided over the low-smoke halogen-free flame-retardant polyolefin insulation layer 2. A mildew-resistant layer 4, which is a chlorinated polyethylene layer, is extruded over the copper wire shielding layer 3. A ceramicized silicone rubber composite tape 5 is wrapped around the mildew-resistant layer 4 to form a wire core. The wire cores are twisted together to form a cable core. The cable core is filled and rounded using ceramicized fire-resistant filler rope 7, with carbon fiber filaments 6 placed inside. A polyester tape 8 is wrapped around the cable core to secure it. A carbon fiber filament protective layer 9 is braided over the polyester tape 8. An outer sheath 10 is covered over the carbon fiber filament protective layer 9. The outer sheath 10 is extruded from low-smoke halogen-free flame-retardant polyolefin material.

[0026] Example 2:

[0027] A flame-retardant and environmentally friendly control flexible cable includes a conductor 1, which is a copper core flexible conductor. A low-smoke halogen-free flame-retardant polyolefin insulation layer 2 is extruded over the conductor 1. A copper wire shielding layer 3 is braided over the low-smoke halogen-free flame-retardant polyolefin insulation layer 2. A mildew-resistant layer 4 is provided outside the copper wire shielding layer 3. A ceramicized silicone rubber composite tape 5 is wrapped around the mildew-resistant layer 4 to form the core. The cores are twisted together to form a cable core. The cable core is filled and rounded using ceramicized fire-resistant filler rope 7, with carbon fiber filaments 6 placed inside the ceramicized fire-resistant filler rope 7. A polyester tape 8 is wrapped around the cable core to secure it. A carbon fiber filament protective layer 9 is braided over the polyester tape 8. An outer sheath 10 is covered over the carbon fiber filament protective layer 9. The outer sheath 10 is extruded from low-smoke halogen-free flame-retardant polyolefin material.

[0028] A magnetic shielding layer is coated on the low-smoke halogen-free flame-retardant polyolefin insulation layer 2.

[0029] An anti-aging coating is applied to the outside of the outer sheath 10.

[0030] The cable uses a copper core soft conductor, which has good flexibility and bending performance, making the cable more flexible during the laying process.

[0031] Conductor 1 is externally extruded with low-smoke halogen-free flame-retardant polyolefin insulation. This material has excellent electrical insulation and flame-retardant properties, can effectively block current and prevent leakage. At the same time, it has excellent chemical stability and can operate normally in complex and changing environments, such as changes in humidity and pH, and is not easily corroded, effectively extending the service life of the cable.

[0032] Low-smoke halogen-free flame-retardant polyolefin materials achieve their flame-retardant effect by adding inorganic flame retardants such as aluminum hydroxide and magnesium hydroxide. During combustion, these flame retardants release water of crystallization, absorb a large amount of heat, inhibit material decomposition and the release of flammable gases, and the resulting oxide shell blocks external thermal-oxygen reactions. Compared to halogen-containing flame-retardant materials, low-smoke halogen-free materials do not release toxic hydrogen halide gases during combustion, and produce extremely low smoke levels.

[0033] The outer braided copper wire shielding layer 3 of the insulation layer is more effective at shielding external electromagnetic interference than the traditional outer braided shielding layer of the cable core, ensuring signal stability, eliminating induced electricity on the cable surface, and ensuring the safety and stability of power transmission.

[0034] The copper wire shielding layer 3 is woven from multiple strands of fine copper wire. Its main function is to shield the electric field and prevent external electromagnetic interference from interfering with the internal signals of the cable. This braided structure also has good bending resistance, making it suitable for scenarios that require frequent movement or bending.

[0035] A mildew-resistant layer 4 is provided outside the copper wire shielding layer 3. The mildew-resistant layer 4 is made of chlorinated polyethylene material, which has good mildew resistance and weather resistance, and can effectively prevent the growth of mildew and extend the service life of the cable.

[0036] The mildew-resistant layer 4 is wrapped with a ceramicized silicone rubber composite tape 5. This material is a new type of high-molecular refractory material that is green, environmentally friendly, has good heat insulation and fire resistance, and can effectively protect the shielding layer and internal structure.

[0037] The ceramicized silicone rubber composite tape 5 can form a ceramicized structure at high temperatures, exhibiting excellent fire resistance and maintaining the integrity of the cable in high-temperature environments such as fires.

[0038] After being wrapped, the wire cores are stranded into a cable and filled with a ceramicized fire-resistant filler rope 7 to ensure roundness. Carbon fiber filaments 6 are placed inside the filler rope, and polyester tape 8 is used to secure the cable core. The ceramicized fire-resistant filler rope 7 not only has the performance characteristics of ordinary cable filler rope, which can effectively increase the tensile strength of the cable and stabilize the relative position of the insulated wire cores in the cable, ensuring good roundness of the cable, but also has the special properties of ceramicized series products. Under normal conditions, it permanently maintains the general characteristics of silicone rubber, with rubber flexibility, excellent electrical and mechanical properties, and good sound insulation, shock absorption, impact resistance, bending resistance, flexural resistance, shelling, and heat insulation properties. The built-in carbon fiber filaments 6 are composed of carbon fiber and resin and other materials, with a tensile strength of typically 1000-5000 MPa, which effectively improves the tensile strength of the cable and ensures that the cable is not damaged during bending and stretching.

[0039] The ceramicized refractory filler rope 7 can maintain structural stability at high temperatures and prevent the internal core of the cable from becoming scattered, while the carbon fiber filament 6 can enhance the mechanical strength of the cable.

[0040] The carbon fiber protective layer 9 further enhances the cable's mechanical strength and high-temperature resistance, effectively preventing external mechanical damage.

[0041] The polyester tape 8 is wrapped around the outer layer of the woven carbon fiber filament protective layer 9. The high tensile strength of the carbon fiber filament 6 can provide good protection for the inner layer of the cable and has a good electromagnetic shielding effect. The conductivity of carbon fiber is about 106 S / m. Although it is lower than that of metals such as silver, copper or aluminum, its conductivity is sufficient to make it exhibit excellent shielding effect in a specific direction.

[0042] The outer sheath 10 is made of low-smoke halogen-free flame-retardant polyolefin material extruded. This sheath material has excellent flame retardancy, which can effectively suppress the spread of flames and maintain a relatively small burning area and short burning duration. Its unique material properties ensure that it will not melt and drip during the burning process, thereby greatly reducing the risk of secondary fire caused by dripping materials, providing a more solid guarantee for personnel safety and property protection, and has excellent flame retardant and environmental protection properties.

[0043] The magnetic shielding layer is applied to the low-smoke, halogen-free, flame-retardant polyolefin insulation layer 2, which can effectively shield magnetic field interference and prevent external magnetic fields from affecting the internal signals of the cable.

[0044] An anti-aging coating is applied to the surface of the outer sheath 10, which can effectively prevent environmental factors such as ultraviolet rays and ozone from corroding the cable and extend the service life of the cable.

[0045] Features of this utility model:

[0046] Excellent flame retardant properties:

[0047] It uses low-smoke, halogen-free flame-retardant polyolefin materials, which release no toxic gases during combustion and produce low smoke, meeting environmental protection and safety requirements.

[0048] Good electromagnetic shielding effect:

[0049] The dual design of the copper wire shielding layer 3 and the magnetic shielding layer can effectively prevent electromagnetic interference and ensure the stability and accuracy of signal transmission.

[0050] High temperature resistance and strong fire resistance:

[0051] The use of ceramicized silicone rubber composite tape 5 and ceramicized fire-resistant filler rope 7 enables the cable to maintain structural integrity in high-temperature and fire environments, ensuring the reliability of signal transmission.

[0052] Good resistance to mold and weathering:

[0053] The mold-resistant layer 4 effectively prevents mold growth and adapts to harsh environments such as dampness.

[0054] High mechanical strength:

[0055] The carbon fiber protective layer 9 and the ceramicized fire-resistant filler rope 7 enhance the mechanical strength of the cable and effectively prevent external mechanical damage.

[0056] Strong anti-aging properties:

[0057] Anti-aging coatings can effectively prevent environmental factors such as ultraviolet rays and ozone from corroding cables and extend their service life.

[0058] The flame-retardant and environmentally friendly control flexible cable is designed to combine excellent flame-retardant performance, flexible flexibility, and efficient power transmission capabilities. Its flexibility makes the cable more flexible and convenient to install, easily handling complex wiring environments or confined spaces, demonstrating its excellent adaptability. Its superior flame-retardant performance and environmental protection characteristics enable it to maintain excellent electrical performance under high-temperature conditions, and it is harmless to the environment and human health, providing a safe and reliable power solution for various industrial and civil environments.

Claims

1. A flame-retardant and environmentally friendly control flexible cable, characterized in that: The cable includes a conductor, an extruded low-smoke halogen-free flame-retardant polyolefin insulation layer, a copper wire shielding layer woven outside the low-smoke halogen-free flame-retardant polyolefin insulation layer, a mildew-resistant layer outside the copper wire shielding layer, a ceramicized silicone rubber composite tape wrapped around the mildew-resistant layer to form a core, the cores being twisted together to form a cable core, the cable core being filled and rounded with ceramicized fire-resistant filler rope, carbon fiber filaments being placed inside the ceramicized fire-resistant filler rope, a polyester tape wrapped around the cable core to secure it, a carbon fiber filament protective layer woven outside the polyester tape, and an outer sheath covering the carbon fiber filament protective layer.

2. The flame-retardant and environmentally friendly control flexible cable according to claim 1, characterized in that: The conductor is a copper-core soft conductor.

3. The flame-retardant and environmentally friendly control flexible cable according to claim 1, characterized in that: The outer sheath is made of low-smoke, halogen-free, flame-retardant polyolefin material through extrusion.

4. The flame-retardant and environmentally friendly control flexible cable according to claim 1, characterized in that: A magnetic shielding layer is coated on the low-smoke, halogen-free, flame-retardant polyolefin insulation layer.

5. The flame-retardant and environmentally friendly control flexible cable according to claim 1, characterized in that: An anti-aging coating is applied to the outside of the outer sheath.

6. The flame-retardant and environmentally friendly control flexible cable according to claim 1, characterized in that: The mold-resistant layer is a chlorinated polyethylene layer, which is extruded onto the outside of the copper wire shielding layer.

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