751results about "Communication cables" patented technology

An aerial lighting system includes: two or more unmanned aerial vehicles (UAVs) each including a corresponding high-powered LED array arranged to illuminate an area beneath the UAVs when the UAVs are airborne; a base station configured to retain the UAVs when not airborne, wherein the base station includes a controller for controlling the UAVs; and a plurality of cables for transferring power and data, including: (i) a first cable detachably coupled between the base station and a first UAV, wherein the first UAV receives power from the base station and communicates with the controller via the first cable, and (ii) a second cable detachably coupled between the first UAV and a second UAV, wherein the second UAV receives power from the base station and communicates with the controller via the second cable.

A magnetic data cable is disclosed, including cable body and a data interface connected to both ends of the cable body. The cable body includes a cored wire group and an external protective layer wrapped outside of the cored wire group, a flexible magnetic strip is provided in the outer protective layer, and the flexible magnetic strip is located alongside of the cored wire group and extends parallel to the cored wire group. It is convenient to adjust diameter of the coil after the data cable has been coiled so as to facilitate storing of the data cable, and it is easy to operate.

A radio frequency (RF) feedthrough component having an impedance greater than 20 ohms is disclosed. The feedthrough includes a ceramic body having a flexible non-ferrous conductor adhered to its outer peripheral surface and to an inner peripheral surface of an aperture through the ceramic body. A non-ferrous conductive lead is disposed through the aperture and protrudes from at least one side thereof. A non-ferrous hermetic seal is formed between a portion of the non-ferrous conductive lead disposed in the aperture and the non-ferrous conductor adhered to the surface of the aperture. The RF feedthrough can be assembled in an opening of a conductive housing to form an electromagnetically shielded package for an electrical circuit.

The utility model discloses an intelligent early warning cable, which comprises a power line insulation wire core arranged in a first belting layer, the power line insulation wire core comprises a conductor and an insulation layer coated outside the conductor, and a temperature measuring element is arranged in the conductor; an armor layer is arranged outside the first belting layer, and a vibration measuring element is arranged in the armor layer; and an isolating layer is arranged between the first belting layer and the armor layer. The temperature measuring element with the temperature measuring function is arranged on the outermost layer of the conductor, so that the temperature of the cable conductor can be monitored more accurately; the vibration measurement element with the vibration measurement function is arranged in the armor layer, and the isolation layer is arranged between the first belting layer and the armor layer, so that an electromagnetic field generated by the cable in the first belting layer under the conditions of high voltage and large current can be isolated, and the problem that the electromagnetic field interferes optical signal transmission in the vibration optical fiber is avoided; the vibration signal can be accurately detected, and the detection accuracy is prevented from being influenced by deviation.

The invention provides a corrosion-resistant composite cable and a preparation method thereof, the corrosion-resistant composite cable comprises a signal unit, an optical cable unit and a protection unit, the signal unit and the optical cable unit are coated with the protection unit, the signal unit comprises a silver-plated copper conductor, an insulating layer, a shielding layer and a sheath layer, and the silver-plated copper conductor is coated with the insulating layer. The optical cable unit comprises an optical fiber, a buffer tube and a filler; the protection unit comprises an inner sheath, a tensile layer, an anti-corrosion layer and an outer sheath. The corrosion-resistant composite cable has good corrosion resistance, can effectively resist corrosion of various chemical substances, prolongs the service life of the cable, reduces the fault risk caused by corrosion, and improves the stability and reliability of power transmission or signal transmission; under severe environment conditions, such as high humidity, high salinity and high alkalinity, a normal working state can still be kept, continuous and stable support is provided for related equipment or systems, and normal operation of the equipment or systems is guaranteed.

The invention relates to the technical field of power transmission and cable monitoring cables, in particular to an anti-interference optical fiber monitoring cross-linked cable and a forming and manufacturing method, and the cable sequentially comprises a cable core layer, a monitoring function layer, an electromagnetic shielding layer, an insulation protection layer and an outer protection layer from inside to outside; the monitoring function layer is tightly wound on the outer surface of the cable core layer in a spiral shape, the electromagnetic shielding layer is located between the monitoring function layer and the insulation protection layer, the electromagnetic shielding layer is of a multi-layer structure, the inner layer of the electromagnetic shielding layer is a permalloy belt, and the outer layer of the electromagnetic shielding layer is a tinned copper woven mesh. And a plurality of rat-proof and ant-proof composite layers are arranged on the outer side wall of the outer protective layer at intervals along the length direction of the outer protective layer. The monitoring function layer is spirally and tightly wound on the outer surface of the cable core layer, the design enables the optical fiber and the cable core layer to be tightly attached, it is ensured that the temperature change and mechanical deformation of the cable core layer can be rapidly transmitted to the optical fiber, and the problem of monitoring lag caused by gaps in a traditional loose tube structure is solved.

A twin-axial cable including a first conductor; a first dielectric material surrounding the first conductor; a second conductor; a second dielectric material surrounding the second conductor; a first wedge; a second wedge positioned opposite to the first wedge; and a conductive shield surrounding the first conductor, the first dielectric material, the second conductor, the second dielectric material, the first wedge, and the second wedge, wherein at least a portion of the first wedge is positioned between the first dielectric material and the second dielectric material at a first region of the twin-axial cable, wherein at least a portion of the second wedge is positioned between the first dielectric material and the second dielectric material at a second region of the twin-axial cable opposite to the first region of the twin-axial cable.

The invention discloses a photoelectric composite aluminum alloy conductor aerospace cable and a preparation method, and belongs to the technical field of photoelectric composite cables, the cable comprises an optical fiber unit, a conductor unit, an insulating layer, an anti-electromagnetic unit and a sheath layer; the anti-electromagnetic unit is obtained by weaving double-layer metallized polyimide fibers; the double-layer metallized polyimide fiber sequentially comprises a polyimide fiber, a first metal coating and a second metal coating from inside to outside. The surface of the polyimide fiber is coated with modified polydopamine; the first metal coating is copper; and the second metal coating is silver and / or nickel. The double-layer metal coating can form a more compact metal outer layer on the surface of the polyimide fiber, the requirements of the severe external environment of aerospace are met, a conductive network with higher stability is formed, and the electromagnetic shielding effect is remarkably improved. Moreover, the polyimide fiber is coated with a polydopamine coating, so that the fiber is not damaged, and the overall high and low temperature resistance and radiation resistance can be improved.

The invention relates to the technical field of photoelectric composite cables, in particular to a cold-resistant tensile photoelectric composite cable and a rapid laying method thereof, and the cable comprises a conductor part, an insulating layer, an optical fiber unit, a filling layer and an outer sheath which are coaxially arranged from inside to outside and are sequentially wrapped. The conductor part is formed by twisting a plurality of strands of copper wires, a carbon fiber reinforced core is arranged in the conductor part, and the insulating layer is made of EAA and PEBA blending modified materials and contains nano boron nitride particles; the optical fiber unit is of a PBT loose tube structure, a plurality of single-mode optical fibers and special ointment are arranged in the PBT loose tube structure, micro-nano protrusions are arranged on the inner wall of a loose tube, and the surface of each micro-nano protrusion is covered with a silicon dioxide antireflection film. The cable integrates the functions of cold resistance, stretch resistance, electric conduction, insulation, communication, heat dissipation and protection. The insulating layer adopts EAA and PEBA blending modified materials to be combined with nano boron nitride particles, so that the cold resistance and the insulativity are improved; and the polyurethane elastomer of the filling layer is compounded with the glass beads, so that the structural stability and the comprehensive performance are enhanced.

A photoelectric composite flexible high-voltage reel cable, including a polyethylene outer sheath (1), a double-face plastic-coated steel belt (2) connected to an inner side of the polyethylene outer sheath (1), an insulating tape (3) connected to an inner side of the double-face plastic-coated steel belt (2), an anti-crack protective sleeve (4) connected to an inner side of the insulating tape (3), and a power cord body (6), a filler rope (7), a reinforcement (9) and an optical fiber body (8) sequentially distributed on an inner side of the anti-crack protective sleeve (4) from top to bottom, where the power cord body (6), the filler rope (7) and the optical fiber body (8) are distributed on a peripheral side of the reinforcement (9). The photoelectric composite flexible high-voltage reel cable further includes a metal radiating column (11), movable balls (13), a rubber air bag (14), and a conveying pipe (15).

A photoelectric composite cable for an underwater buoy, and a preparation process therefor. A polyurethane, a self-repairing polyurethane prepolymer, and a composite nano zinc oxide are selected as an outer sheath base material. A modified polysiloxane having a B-O six-membered ring dynamic cross-linked network and a long-chain alkane group and an amino is introduced into the self-repairing polyurethane prepolymer; 5,5'-methylenedisalicylaldehyde and isophorone diisocyanate are together subjected to stepwise polymerization with the modified polysiloxane, and the 5,5'-methylenedisalicylaldehyde is cross-linked with diphenylmethane diisocyanate to obtain a self-repairing polyurethane prepolymer; and nano zinc oxide is subjected to a modification treatment, wherein dodecyltrimethoxysilane and 3-glycidoxypropyltrimethoxysilane are used for dual modification, such that super-hydrophobic nano zinc oxide having good thermal stability and high dispersity is prepared in a toluene system.

The invention provides a heat dissipation flexible cable. The heat dissipation flexible cable comprises an inner sheath, a heat dissipation assembly, a separation assembly, a plurality of battery cell assemblies and a plurality of sliding assemblies, the inner sheath is provided with an accommodating cavity; the heat dissipation assembly is arranged around the periphery of the inner sheath; the separation assembly is located in the containing cavity and comprises a center piece and a plurality of separation pieces, the separation pieces are arranged around the periphery of the center piece, and a core cavity is formed between any two adjacent separation pieces; the battery core assemblies are located in the corresponding core cavities, each battery core assembly comprises an electric unit, a thermal expansion structure and a first elastic piece, and one side of each electric unit is elastically connected to the inner sheath through the corresponding first elastic piece; the plurality of sliding assemblies are arranged corresponding to the plurality of separators, the sliding assemblies are slidably arranged on the separators corresponding to the sliding assemblies, and the sliding assemblies are configured to install optical units; the thermal expansion structure is configured to be heated to drive the electric unit and the sliding assembly to move towards one side of the inner sheath to abut against the inner sheath, and the heat dissipation assembly can dissipate heat of the electric unit and the optical unit through the inner sheath.

The invention relates to a photoelectric composite cable suitable for an unmanned aerial vehicle platform, which comprises a wrapping layer formed by wrapping a covering film, an accommodating space is formed in the wrapping layer, a two-core electric unit and a one-core single-mode optical fiber are respectively placed in the accommodating space, and a plurality of aramid fibers are distributed in the accommodating space and are filled to form a cable; an insulating layer is distributed on the electric unit, an outer wrapping layer is distributed on the single-mode optical fiber, and the insulating layer, the outer wrapping layer and the covering film are all made of high-temperature-resistant fluoroplastic formed by ethylene-tetrafluoroethylene copolymer; the thickness of the covering film is 0.05 mm, and the total thickness after wrapping is 0.10 mm + / -0.02 mm; the outer diameter of the photoelectric composite cable is 2.2 mm + / -0.1 mm, and the total weight per meter is smaller than or equal to 12 g. Therefore, the whole photoelectric composite cable has better high temperature resistance, can meet high tensile strength under the condition of light weight, can realize low-loss signal transmission, and has better heat dissipation effect.

The invention discloses a high-flexibility multifunctional cable and a manufacturing process and application thereof, and relates to the technical field of communication cables.The high-flexibility multifunctional cable comprises at least one conductor unit, and each conductor unit comprises a conductive wire core formed by twisting a plurality of metal conductors and a first inner insulating layer wrapping the exterior of the conductive wire core; the functional unit and the conductor unit are arranged in a bundling mode, the functional unit comprises a functional core body, a second inner insulating layer and a lapped inner shielding layer, the functional core body is wrapped with the second inner insulating layer, and after the conductor unit and the functional unit are combined, the conductor unit and the functional unit are sequentially wrapped with an outer shielding layer, a buffer layer, an armor layer and an outer sleeve layer from inside to outside. According to the invention, application scenes in main connecting pieces such as electric power communication composite power supply / transmission umbilical cords, aerospace cabin-out system umbilical cords, industrial robot automatic mechanical arms and the like can be met.

The embodiment of the invention provides a signal cable, a signal monitoring system and a signal monitoring method. The signal cable comprises a plurality of conductors, a plurality of insulators, an optical fiber sensing layer, a pressure-resistant buffer layer, a shielding layer and an outer sheath layer, wherein each conductor is wrapped with one insulator, and the plurality of insulators are included in the optical fiber sensing layer; a first single-mode optical fiber, a second single-mode optical fiber and a multimode optical fiber are arranged in the optical fiber sensing layer, and the first single-mode optical fiber, the second single-mode optical fiber and the multimode optical fiber are circumferentially arranged in the optical fiber sensing layer; the compression-resistant buffer layer is wrapped on the optical fiber sensing layer, the shielding layer is wrapped on the compression-resistant buffer layer, and the outer sheath layer is wrapped on the shielding layer. Through cooperation and distributed sensing of multiple optical fibers in the optical fiber sensing layer, the transmission precision and distance of cable signals are effectively improved, and the safety and reliability are improved.

The invention discloses a halogen-free low-smoke optical cable communication cable, and relates to the technical field of communication cables, the halogen-free low-smoke optical cable communication cable comprises an optical fiber assembly, a communication assembly is arranged on the outer surface of the optical fiber assembly, and a chemical protection assembly is arranged on the outer surface of the communication assembly. According to the halogen-free low-smoke optical cable communication cable, in order to enhance the mechanical strength of the cable, the protective sleeve can improve the impact resistance of the cable, the thin steel layer can provide mechanical strength for the cable, the armor layer on the outer layer is used for resisting external corrosion, and the smoke suppression layer additionally arranged between the armor layer and the thin steel layer can reduce smoke generated when the cable burns; the glass fiber layer is an important reinforcing and protecting structure in the cable, the buffer layer prevents the optical fibers from being broken and the conductors from being deformed, and when the cable is subjected to external impact force, lubricating oil stored in an oil tank flows into the surface of the armor layer and permeates into the outer surface of the thin steel layer through the smoke suppression layer. The cable has an effective protection effect on mechanical strength resistant components in the cable, and the outermost wear-resistant layer depends on certain rigidity and toughness.

The invention relates to a cable structure and a manufacturing method thereof, the cable structure comprises a cable conductor, and the cable conductor comprises a center line and an external conductor wrapping the center line; the center line comprises an optical fiber, a conductor tube and a stranded wire; the optical fiber is arranged in the conductor tube in a penetrating mode, and the conductor tube is wrapped with the stranded wire. Thus, the optical fiber can be prevented from being damaged and even broken in the using process, the temperature of the cable conductor can be accurately monitored through the optical fiber, the safety and reliability of the cable structure are improved, meanwhile, the mechanical performance and the current-carrying capacity of the cable structure can be guaranteed, and the cable structure can provide support for safe operation of a power system; in addition, the manufacturing cost of the cable structure can be reduced, the weight of the cable structure is reduced, and the cable structure is convenient to install.

The invention relates to the technical field of composite armored cables, and discloses an intelligent sensing type photoelectric composite armored cable for deep-sea mining equipment, which comprises a cable core formed by twisting a plurality of power cable core conductors, an optical fiber communication unit, a medium conveying pipeline and an intelligent sensing unit, and an outer coating layer, tin-plated annealed copper wires and high-strength copper foil wires are arranged in a conductor of the power cable core, an insulation shielding layer is wrapped outside the conductor, the intelligent sensing unit integrates a plurality of optical fibers and optical fiber grating sensors, a loose structure is arranged outside the intelligent sensing unit, one intelligent sensing unit is used for monitoring strain distribution, the other intelligent sensing unit is used for monitoring temperature distribution, and other redundant optical fibers are used as redundant backups. A certain length of grid region interval is preset, distributed measurement along the length of the cable is realized, a sensing optical fiber in the intelligent sensing unit is connected to an optical fiber demodulator of a deck control room, a software system displays strain, temperature, vibration and form data of each point of the cable in real time, an alarm threshold value is set, and the structure is highly integrated and can adapt to a deepwater environment.

A cable harness (9), a means of transportation, the use of a combined cable (1, 11), and a combined cable (1, 11) are proposed. The combined cable (1, 11) is provided for a means of transportation and comprises an electrical cable (2) and an optical cable (3).

The invention provides a safety monitoring method and device applied to a cable pipe gallery and a storage medium, and the method comprises the steps: controlling an inspection trolley to carry out the inspection of an area where a cable assembly is located, so as to obtain a surface temperature; judging whether a refrigerating system arranged in the internal space is operated or not according to the surface temperature; and if yes, the refrigerating temperature and the air outlet angle of the refrigerating system are adjusted according to the surface temperature and the indoor environment temperature of the inner space. The technical problems that a traditional cable temperature monitoring method mainly depends on manual inspection or a fixed temperature sensor, and manual inspection is low in efficiency, poor in real-time performance, difficult to cover all areas and the like are solved. A fixed temperature sensor has the defects of limited installation position, limited monitoring range, difficulty in flexible adjustment and the like. In addition, the internal environment of the cable pipe gallery is complex, the space is long and narrow, air circulation is not smooth, a local high-temperature area is easily formed, and a traditional temperature monitoring method is difficult to meet comprehensive and accurate monitoring requirements.

The embodiment of the invention provides a submarine cable forming device, and relates to the field of submarine cables. The forming device comprises a supporting seat, the supporting seat comprises a base, a supporting rod, a first wire coil, a second wire coil and a third wire coil, the supporting rod is arranged on the base and extends in the vertical direction, the first wire coil and the second wire coil are located on the circumferential side of the supporting rod, and the second wire coil and the third wire coil are located on the same side of the supporting rod and arranged in the radial direction of the base; the cable positioning platforms are arranged on the supporting rod and are arranged on the upper side of the base at intervals; the cable twisting platforms are arranged on the supporting rod and are arranged on the upper side of the cable positioning platform at intervals; the shaping molds are arranged on the supporting rods and are arranged on the upper side of the cable twisting platform at intervals; and the cable wrapping assembly is used for wrapping the submarine cable assembly penetrating through the shaping mold with a cabling wrapping layer. The forming device of the submarine cable can improve the control of the tension of the optical cable and improve the stability in the twisting and paying-off process.

The invention provides a novel intelligent early-warning fire-resistant medium-voltage cable and a preparation method thereof, and the cable comprises a cable core which comprises a conductor which is formed by compressing and twisting a plurality of annealed soft copper wires; the communication optical cable and the temperature measuring optical cable are arranged in the cable core, the temperature measuring optical cable is used for collecting whole-line temperature signals of the cable in real time, and the communication optical cable is used for receiving the whole-line temperature signals of the cable collected by the temperature measuring optical cable in real time, converting the signals into optical signals and transmitting the optical signals to a control terminal; the control terminal analyzes the received temperature data and controls the working state of the early warning device. The fireproof structure is arranged on the outer side of the cable core; the protective layer structure is arranged on the outer side of the fireproof structure; real-time monitoring, transmission and early warning of fire temperature signals are achieved through the optical cable communication technology, meanwhile, the continuous power supply and information transmission capacity of the cable in the fire high-temperature environment is ensured, precious time is won for rescue, and the use safety of the cable is improved.

The utility model belongs to the technical field of automobile parts, and discloses a liquid cooling photoelectric composite cable, which comprises a liquid cooling pipeline, a plurality of optical fiber units, a plurality of wire units and a total sheath layer, and the plurality of optical fiber units and the plurality of electric wire units are arranged around the periphery of the liquid cooling pipeline after being mutually twisted. When a large current flows through the electric wire unit, heat generated by the electric wire unit can be absorbed by a cooling liquid in the liquid cooling pipeline, so that the optical fiber unit is at a proper temperature in the working process, a sensor, a controller and an actuator which are connected with the optical fiber unit can quickly respond to each other, and the pilotless automobile can quickly judge the surrounding environment of the pilotless automobile. Safe driving; and the total sheath layer sleeves the peripheries of the optical fiber unit and the wire unit, so that the optical fiber unit, the wire unit and the liquid cooling pipeline can be protected, and the overall compression resistance and friction resistance of the liquid cooling photoelectric composite cable are improved.

The utility model discloses a polyurethane watertight photoelectric composite cable, and relates to the technical field of watertight photoelectric composite cables. The composite cable comprises the outer sheath, the inner sheath, the optical fiber unit and the power line, the inner sheath is arranged in the outer sheath, the overall use strength of the composite cable is improved through the outer sheath and the inner sheath, and the armor layer is arranged between the outer sheath and the inner sheath, so that even if the outer sheath is broken, the optical fiber unit can be prevented from being damaged, and the service life of the composite cable is prolonged. The inner sheath is protected through the armor layer, the first water-blocking tape is made of a material formed by compounding polyester fibers and a high-water-absorption material after meeting water, and when water enters a cable port using the water-blocking tape, high-water-absorption powder or a water-swelling material contained in the water-blocking tape can absorb the water through the water absorption performance of the high-water-absorption powder or the water-swelling material. And the water-blocking tape expands to become gel to form a protective barrier for preventing water from flowing, namely, the protective barrier performs waterproof protection between the broken part of the outer sheath and the armor layer.

The invention discloses a high-speed cable and a high-speed cable assembly, and relates to the technical field of cables, the high-speed cable comprises two signal lines arranged side by side along a first direction, the outer walls of the two signal lines are sequentially coated with a foamed polytetrafluoroethylene layer, an aluminum foil layer and a plastic layer, and two flat ground wires are arranged between the aluminum foil layer and the plastic layer. The two flat ground wires are distributed in a layered mode in the second direction, and the flat ground wires abut against the aluminum foil layer or are bonded with the aluminum foil layer through a conductive adhesive; wherein the first direction is perpendicular to the second direction, the heights of the two signal lines in the second direction are located between the heights of the two flat ground wires in the second direction, the projection length of the two signal lines in the first direction is larger than the projection length of the flat ground wires in the first direction, and the two ends of the plastic layer in the second direction are arranged in a plane mode. According to the invention, the technical problem of poor grounding contact of the high-speed cable is solved.

The invention discloses a high-flame-retardant temperature-resistant corrosion-resistant optical fiber composite cable and a preparation method thereof, and belongs to the technical field of cable manufacturing, and the high-flame-retardant temperature-resistant corrosion-resistant optical fiber composite cable sequentially comprises an optical fiber unit, a conductor layer, an insulating layer, a shielding layer, a corrosion-resistant layer and a sheath layer from inside to outside. The optical fiber unit adopts a ceramic silicone rubber buffer layer; the conductor layer is a nickel-plated copper alloy stranded wire, and the oxidation resistance is enhanced through nano titanium dioxide sol treatment; the insulating layer is of a three-layer co-extrusion structure; the shielding layer adopts an aluminum-plastic composite belt and tinned copper wire braided composite structure; the anti-corrosion layer is a polytetrafluoroethylene film subjected to plasma treatment; the sheath layer is made of two-component ceramic silicone rubber, is flexible after being vulcanized at normal temperature, and is converted into a ceramic body at high temperature. According to the optical fiber composite cable, through the collaborative design of a multi-layer structure, the performance of excellent continuous use stability, high salt mist environment corrosion resistance and the like is achieved, the optical fiber composite cable is suitable for high-temperature, corrosion, fire and other severe environments, and the safety and durability of the composite cable are remarkably improved.

The invention relates to the technical field of power cables, in particular to a molded line stranded aluminum alloy conductor optical fiber composite low-voltage power cable and a preparation method thereof.The molded line stranded aluminum alloy conductor optical fiber composite low-voltage power cable comprises a plurality of power line cores which are tangent in pairs and stranded mutually, and heat dissipation channels are formed in the inner sides of the N power line cores; the heat conduction layer is filled in the heat dissipation channel and forms a preset shape; and the foaming filling layer is filled at the outer sides of the two adjacent power wire cores and is wrapped and fixed by a wrapping layer to form a cable core with a circular cross section. The distribution positions of the wire cores and the optical fibers and the heat dissipation channels of the optical fibers are improved, and heat generated by the power wire cores can be transmitted to the outside of the cable by avoiding the positions of the optical fibers through the first heat conduction channels of the inner sheath, the shielding layer and the outer sheath; and the heat dissipation channel on the inner side of the conductor can be used as a second heat conduction channel to transmit along the axis of the cable, so that the temperature of the environment where the optical fiber unit is located can be effectively reduced.