Watertight dynamic control composite cable for flexible communication power supply

Abstract

The utility model discloses a watertight dynamic control composite cable for a flexible communication power supply, which comprises a power cable core unit and a control cable core unit, the power cable core unit and the control cable core unit are cabled together to form an integral cable core, a flame-retardant high-temperature belt is lapped outside the integral cable core, a composite braided shielding layer is arranged outside the flame-retardant high-temperature belt, and the composite braided shielding layer is wrapped outside the flame-retardant high-temperature belt. Second water-blocking glue is arranged outside the composite woven shielding layer, a comprehensive fireproof composite belt is wrapped outside the second water-blocking glue, a gear rib type thermoplastic elastomer oxygen barrier layer is extruded outside the comprehensive fireproof composite belt, and a metal sleeve is arranged outside the gear rib type thermoplastic elastomer oxygen barrier layer. A plurality of cavities are formed between the metal sleeve and the gear rib type thermoplastic elastomer oxygen barrier layer, and a halogen-free flame-retardant soft rubber sheath is extruded outside the metal sleeve. The cable provided by the utility model has the advantages of halogen-free flame retardance, good waterproof performance, electromagnetic interference resistance and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric wire and cable, especially to a kind of water-tight dynamic control comprehensive cable for communication power supply under the condition of bad environment and damp in the corresponding power and control system equipment of shallow water, lake and ship. BACKGROUND

[0002] With the development of marine industry, various power cables and control cables are also applied in ships and diving equipment, especially in the integrated power system and control system, wherein the control system is mainly used for transmitting control and measurement signals, which is easily disturbed by electricity in the process of signal transmission. The interference mainly has two aspects: (1) electrostatic interference generated by the action of external voltage on the intercapacitance coupling; (2) electromagnetic induction interference generated by the current. When there is a high-voltage and high-current interference source nearby, the electrical interference is more serious. Since the distance between the cores of the same cable is small, the interference degree is much larger than that of the adjacent cable laid in parallel.

[0003] In addition, the existing cable structure is simple and single, and the water-tightness of the cable is poor. After long-term use, external rainwater will enter the internal contact of the cable core, causing short circuit of the cable, which is easy to cause damage to the power equipment or control system equipment, and cannot meet the use requirement. UTILITY MODEL CONTENT

[0004] The utility model discloses in order to solve the existing problem, provide a kind of flexible communication power water-tight dynamic control comprehensive cable, with the advantages such as halogen-free flame retardant, good waterproof performance, anti-electromagnetic interference, solve the existing cable structure simple and single, the water-tightness of the cable is poor, after long-term use, external rainwater will enter the internal contact of the cable core, causing short circuit of the cable, which is easy to cause damage to the power equipment or control system equipment.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of flexible communication power supply water-tight dynamic control comprehensive cable, including power cable core unit and control cable core unit, the power cable core unit includes multiple power insulated wires, multiple power insulated wires are stranded into wire core, and halogen-free flame-retardant rope is filled in the gap of wire core to form filling layer, first water-blocking sealant layer is equipped outside filling layer, halogen-free fire barrier tape is wrapped outside first water-blocking sealant layer;The control cable core unit includes multiple control insulated wires, and multiple control insulated wires are arranged at power cable core unit outside with interval distribution;The power cable core unit and control cable core unit are together into cable to form integral cable core, fire-retardant high-temperature tape is wrapped outside integral cable core, composite braided shielding layer is arranged outside fire-retardant high-temperature tape, second water-blocking sealant layer is equipped outside composite braided shielding layer, comprehensive fireproof composite tape is wrapped outside second water-blocking sealant layer, gear split tendon type thermoplastic elastomer oxygen barrier layer is extruded and packed outside comprehensive fireproof composite tape, metal sleeve is arranged outside gear split tendon type thermoplastic elastomer oxygen barrier layer, and multiple cavities are formed between metal sleeve and gear split tendon type thermoplastic elastomer oxygen barrier layer, and halogen-free flame-retardant type soft rubber sheath is extruded and packed outside metal sleeve.

[0006] Preferably, the power insulated wire includes stranded soft conductor, and water-blocking tape is wrapped outside stranded soft conductor.

[0007] Preferably, the stranded soft conductor is made of multiple tin-plated thin soft copper wires stranded into conductor core, and high-conductivity water-blocking glue is coated outside the conductor core.

[0008] Preferably, the control insulated wire is same in structure with the power insulated wire, and the diameter of the control insulated wire is smaller than that of the power insulated wire.

[0009] Preferably, the water-blocking sealant layer is a quick-setting waterproof glue layer formed by mixing sodium silicate and alum.

[0010] Preferably, the fire-retardant high-temperature tape is made of polytetrafluoroethylene tape.

[0011] Preferably, the composite braided shielding layer is made of tin-plated soft copper wire and aramid fiber wire cross-braided together.

[0012] Preferably, the comprehensive fireproof composite tape is cut from high-temperature glass fiber cloth to which ceramicized fireproof refractory silicone rubber is attached in a certain thickness by lamination process.

[0013] Preferably, the metal sleeve is made of aluminum or aluminum alloy material longitudinally packed by argon arc welding.

[0014] Preferably, the halogen-free flame-retardant type soft rubber sheath is made of chlorinated polyethylene rubber extruded.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The power cable core unit and the control cable core unit are formed into an integral cable core together, two units are combined into one, not only the outer diameter of the cable, auxiliary materials are reduced, the work and material are saved, but also the electromagnetic interference and voltage drop and energy loss in the process of cable operation are reduced, and the reliability of the cable operation can be improved;

[0017] The conductor of the present application is twisted by multiple tin-plated fine soft copper wires and coated with special water-blocking glue, the high-conductivity water-blocking glue not only has conductivity, but also has waterproof function; in a humid environment, the water-blocking glue can effectively prevent water from penetrating into the copper wire, preventing short circuit or other electrical faults caused by humidity;

[0018] The composite braided layer adopts a mixed braiding structure of tin-plated copper wire and aramid fiber and a double-layer shielding formed by longitudinal metal sleeve, the metal wire braiding part + metal sleeve structure can ensure that the cable body is shielded from magnetic interference and meets the grounding or shielding effect of the cable equipment; in addition, the high-strength aramid fiber braiding can meet the anti-dragging function in the process of frequent movement;

[0019] Furthermore, the product not only has a certain gap between the "gear split muscle" type sleeve structure and the metal sleeve, has a certain heat dissipation and moisture precipitation function, improves the service life of the product, and the product also has a water-blocking layer, has excellent sealing and water-blocking property, in the case of damage of the sheath, relies on the cable metal sleeve to prevent water vapor from flowing in, and the sealing filler in the cable can also control the water vapor entering the cable, can seal and protect the inside of the cable, so as to ensure the waterproof and insulation performance of the cable core and improve the reliability of the equipment operation.

[0020] In summary, the present cable has the following advantages: (1) the flexible communication power water-tight dynamic control comprehensive cable has excellent halogen-free flame retardance, good waterproof performance, anti-electromagnetic interference and secondary environmental protection; (2) the flexible communication power water-tight dynamic control comprehensive cable has strong resistance to external force and corrosive substances; (3) the flexible communication power water-tight dynamic control comprehensive cable can work normally in high and low temperature, high salt mist, oil stain and mold environment; (4) the flexible communication power water-tight dynamic control comprehensive cable can maintain excellent signal transmission capacity under bending condition. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the present application. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0023] Referring to Figure 1 The utility model provides a kind of embodiment provided by the utility model: a kind of flexible communication power supply water-tight dynamic control comprehensive cable, including power cable core unit and control cable core unit, wherein, power cable core unit includes multiple power insulated wires, and multiple power insulated wires are stranded into wire core, and halogen-free flame-retardant rope is filled in the gap of wire core to form filling layer 5, first water-blocking sealant layer 6 is equipped outside filling layer, and halogen-free fire barrier tape 7 is wrapped outside first water-blocking sealant layer;While control cable core unit includes multiple control insulated wires, and multiple control insulated wires are arranged at the periphery outside power cable core unit with interval, to form control cable core unit;Power cable core unit and control cable core unit are formed into whole cable core together, two units are combined into one, not only reduce the outer diameter of cable, auxiliary material, save labor and material, but also can reduce electromagnetic interference and voltage drop and energy loss in the process of cable operation;While the reliability of cable operation can be improved.

[0024] In the embodiment, the control insulated wire and the power insulated wire have the same structure, and the diameter of the control insulated wire is smaller than that of the power insulated wire;The power insulated wire includes stranded soft conductor, and water-blocking tape 3 is wrapped outside the stranded soft conductor, and extruded polyolefin insulation layer 4 is extruded outside the water-blocking tape;The stranded soft conductor is formed by stranding multiple fifth or sixth tin-plated annealed soft copper wires into conductor core 1, and then coating high-conductivity water-blocking glue 2 outside the conductor core 1, the high-conductivity water-blocking glue not only has conductivity, but also has waterproof function;In humid environment, the water-blocking glue can effectively prevent water from penetrating into the copper wire, prevent short circuit or other electrical faults caused by humidity, which is very important for outdoor equipment, equipment in marine environment or any electronic equipment that may contact water.

[0025] As described above, the design of coating high-conductivity water-blocking glue on multiple tin-plated thin soft copper wires aims to improve conductivity and waterproofness at the same time, and is suitable for electronic equipment and circuits that need to work stably in harsh environment.

[0026] In the overall cable core, the flame-retardant high-temperature belt 8 is wrapped outside, the composite woven shielding layer 9 is arranged outside the flame-retardant high-temperature belt, the second water-blocking sealant layer 10 is arranged outside the composite woven shielding layer, the comprehensive fireproof composite belt 11 is wrapped outside the second water-blocking sealant layer, the gear split fiber type thermoplastic elastomer oxygen barrier layer 12 is formed by polyolefin plastic through a "gear split fiber" type mold extrusion outside the comprehensive fireproof composite belt 11, the metal sleeve 13 is arranged outside the gear split fiber type thermoplastic elastomer oxygen barrier layer, a plurality of cavities 14 are formed between the metal sleeve and the gear split fiber type thermoplastic elastomer oxygen barrier layer, the power line can play a certain heat dissipation function in the long-time operation process, and the current carrying capacity of the power line itself is effectively improved; the halogen-free flame-retardant soft rubber sheath 15 is extruded outside the metal sleeve, no halogen toxic gas and corrosive smoke is released during combustion, which meets the environmental protection requirements, can effectively prevent the flame from spreading, and passes the UL94 V-0 level flame-retardant certification, the elastomer characteristics make the cable easy to bend and maintain, and the cable also has the properties of oil resistance, sun resistance, waterproofness and the like.

[0027] In the embodiment, the water-blocking sealant layer is further optimized to be a water-soluble comprehensive adhesive-sodium silicate. The sodium silicate is easily soluble in water, has viscosity and excellent sealing property, can seal and protect the inside of the cable, thereby ensuring the waterproofness and insulation performance of the cable core and stabilizing the product quality.

[0028] In the embodiment, the flame-retardant high-temperature belt 8 is further optimized to be a polytetrafluoroethylene belt. The polytetrafluoroethylene belt has excellent mechanical properties and electrical insulation properties, does not fall off after combustion, has high temperature resistance, thereby ensuring the high flame retardance of the cable, has excellent chemical corrosion resistance, has excellent flexibility, compression recovery, anti-creep and cold flow properties, and has high tensile strength, thereby improving the flame retardance, tensile resistance and the like of the cable.

[0029] In the embodiment, the comprehensive fireproof composite belt is further optimized to be cut from a ceramicized fireproof and refractory silicone rubber attached to a high-temperature resistant glass fiber cloth according to a certain thickness by a lamination process. The comprehensive fireproof composite belt has excellent fireproof performance, good mechanical properties and electrical insulation properties, and becomes an indispensable part in the modern wire and cable industry.

[0030] It should be noted that the ceramicized fireproof and refractory silicone rubber is one of the main components of the comprehensive fireproof composite belt, and the main features of the ceramicized fireproof and refractory silicone rubber include:

[0031] High-temperature resistance: can maintain the integrity of the structure under high-temperature conditions, especially in the case of fire, can form a ceramic shell in the temperature range of 350°C to 3000°C;

[0032] Fireproof and flame-resistant performance: excellent fireproof and flame-resistant performance, effectively ensuring the smoothness of the line, up to 3000℃, and low smoke, halogen-free, phosphorus-free nitrogen, heavy metal-free smoke after combustion, harmless to human body;

[0033] Mechanical performance: high strength, excellent mechanical performance, and excellent electrical insulation performance, suitable for producing high, medium, and low voltage fire-resistant wires and cables for various application scenarios;

[0034] High-temperature resistant glass fiber cloth as another important component of the comprehensive fireproof composite tape, its main functions include:

[0035] Enhancing structural strength: the addition of fiberglass cloth significantly improves the mechanical strength and tear resistance of the composite tape;

[0036] Improving heat resistance: fiberglass cloth itself has excellent high-temperature resistance, which can effectively improve the stability of the composite tape in high-temperature environments;

[0037] The comprehensive fireproof composite tape, due to its unique performance, is mainly used to replace traditional mica tape as an inorganic insulation layer, and is widely used in the production of high, medium, and low voltage fire-resistant wires and cables, flexible fireproof cables, etc.

[0038] In summary, the comprehensive fireproof composite tape, with its outstanding performance and application range, plays an important role in the modern wire and cable industry, providing strong protection for people's life and property safety.

[0039] In this embodiment, further optimization, the composite braided shielding layer is made of tinned soft copper wire and aramid fiber wire, and the braiding density is not less than 85%; the metal wire braiding part can ensure the magnetic interference shielding of the cable body, and the high-strength aramid fiber braiding can meet the impact resistance and dragging function during frequent movement.

[0040] In this embodiment, further optimization, the cavity can also be coated with heat dissipation paint, greatly improving the conduction and dissipation efficiency of the cable heat, making the cable work more stable.

[0041] In this embodiment, further optimization, the metal sleeve is made of aluminum or aluminum alloy material and is longitudinally coated by argon arc welding. This structure uses aluminum or aluminum alloy (non-magnetic material), which has radial water resistance, strong corrosion resistance, and electromagnetic interference prevention performance.

[0042] To ensure the stable performance of power transmission, it can withstand the rated voltage and rated current: AC 0.6kV 1000mA; DC 1.5kV 800mA, while meeting the requirements of GB / T12706-2008 clause 6.9 on cable burning test and low smoke, halogen-free, flame-retardant requirements; Specifically: it meets the test requirements specified in Chapter 6, Section 1 of GB / T12706-2008 standard "General Specification".

[0043] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A flexible communication power supply water-tight dynamic control composite cable, characterized in that: The cable core unit comprises a power cable core unit and a control cable core unit. The power cable core unit includes multiple power insulated wires, which are twisted together to form a core. Halogen-free flame-retardant rope is filled into the gaps between the cores to form a filler layer. A first water-blocking sealant layer is provided outside the filler layer, and a halogen-free fire-resistant tape is wrapped around the first water-blocking sealant layer. The control cable core unit includes multiple control insulated wires, which are spaced apart and arranged outside the power cable core unit. The power cable core unit and the control cable core unit are cabled together to form a complete unit. The cable core is wrapped with a flame-retardant high-temperature strip. A composite braided shielding layer is installed outside the flame-retardant high-temperature strip. A second water-blocking sealant layer is installed outside the composite braided shielding layer. A comprehensive fireproof composite strip is wrapped around the second water-blocking sealant layer. A gear-ribbed thermoplastic elastomer oxygen barrier layer is extruded outside the comprehensive fireproof composite strip. A metal sleeve is installed outside the gear-ribbed thermoplastic elastomer oxygen barrier layer. Multiple cavities are formed between the metal sleeve and the gear-ribbed thermoplastic elastomer oxygen barrier layer. A halogen-free flame-retardant soft rubber sheath is extruded outside the metal sleeve.

2. The flexible communication power supply water-tight dynamic control composite cable according to claim 1, characterized in that: The power insulated wire includes a stranded soft conductor, a water-blocking tape wrapped around the stranded soft conductor, and an extruded polyolefin insulation layer on the outside of the water-blocking tape.

3. The flexible communication power supply water-tight dynamic control composite cable according to claim 2, characterized in that: The stranded soft conductor is made by stranding multiple tin-plated fine soft copper wires into a conductor core, and then coating the conductor core with a high-conductivity water-based adhesive.

4. The flexible communication power supply water-tight dynamic control composite cable according to claim 2, characterized in that: The control insulation wire has the same structure as the power insulation wire, but its diameter is smaller than that of the power insulation wire.

5. A flexible communication power supply water-tight dynamic control composite cable according to claim 1, characterized in that: The water-blocking sealant layer is a quick-setting waterproof adhesive layer formed by mixing sodium silicate and alum.

6. The flexible communication power supply water-tight dynamic control composite cable according to claim 1, characterized in that: The flame-retardant high-temperature strip is made of polytetrafluoroethylene (PTFE).

7. The flexible communication power supply water-tight dynamic control composite cable according to claim 1, characterized in that: The composite braided shielding layer is made of tin-plated soft copper wire and aramid wire woven together.

8. A flexible communication power supply water-tight dynamic control composite cable according to claim 1, characterized in that: The metal sleeve is made of aluminum or aluminum alloy material longitudinally wrapped and argon-arc welded together.

9. A flexible communication power supply water-tight dynamic control composite cable according to claim 1, characterized in that: The halogen-free flame-retardant soft rubber sheath is made of chlorinated polyethylene rubber by extrusion.

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