CN215451009U - Photoelectric composite mooring cable - Google Patents

Abstract

The utility model relates to the technical field of cables, in particular to a photoelectric composite mooring cable which comprises a reinforcing unit, a fixing unit and a fixing unit, wherein the reinforcing unit comprises a central reinforcing part and a filling reinforcing part wrapped outside the central reinforcing part; a light guide unit and a conductive unit twisted on the central reinforcing part and positioned in the filling reinforcing part; and a protection unit wrapped outside the filling reinforcement part. Above-mentioned photoelectric composite mooring cable through divide into light guide unit, electric conductance unit, enhancement unit and the protection unit with the cable, this cable can carry out the synthesis transmission to light, electricity, and has better toughness and to the tolerance of harmful environment, and comprehensive properties is strong.

Description

Photoelectric composite mooring cable

Technical Field

The utility model relates to the technical field of cables, in particular to a photoelectric composite mooring cable.

Background

In the traditional automobile automatic driving scheme, various video sensors and radars are carried around the automobile body and on the automobile roof, and collected signals are calculated and judged by a vehicle-mounted central computer to make decisions on the behaviors of the automobile. The carrying modes of various video sensors and radars are rigidly connected with the automobile body, and the sensors are mounted in multiple directions due to low mounting height, so that the complete acquisition of peripheral signals of the automobile can be realized, and the automobile manufacturing cost is greatly increased.

If on being applied to car and unmanned aerial vehicle's the combination with autopilot technique, link to each other many rotor unmanned aerial vehicle through mooring cable and car, through the cable with the electric power transmission to unmanned aerial vehicle of car on, can overcome traditional unmanned aerial vehicle and rely on the problem that battery duration is short, rely on car electric energy unmanned aerial vehicle can work always. And carry on a set of video sensor and radar on unmanned aerial vehicle and realize real time monitoring around the vehicle, the control signal is inputed to on-vehicle central computer through the mooring cable, and on-vehicle central authorities provide help to the motorisation according to the signal of unmanned aerial vehicle passback, can realize under the low-speed operating mode, for example district, market or downtown etc. the automatic driving of car L5 level.

However, the length of the traditional cable is usually more than 50 meters, so that the cable is used for large-scale operation and is not suitable for low-altitude operation requirements below 5 meters.

The traditional cables do not have comprehensive functions, and some cables can only transmit power or signals and do not have photoelectric comprehensive transmission capability; some cables lack the reinforcing unit or the strength of the reinforcing unit is too low, so that the cables are easy to break and do not have multiple use values; still other cables do not have a good protective unit, making the cable vulnerable to conditions in a complex environment.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a photoelectric composite mooring cable with good comprehensive performance to solve the problem of poor comprehensive performance of the conventional cable.

A photoelectric composite mooring cable comprises

A reinforcing unit including a central reinforcing part and a filling reinforcing part wrapped outside the central reinforcing part;

a light guide unit and a conductive unit twisted on the central reinforcing part and positioned in the filling reinforcing part; and a protection unit wrapped outside the filling reinforcement part.

Further, the light guide unit comprises a fiber core, a cladding and an outer protective layer, wherein the cladding and the outer protective layer are sequentially wrapped outside the fiber core.

Further, the fiber core is formed by twisting a plurality of optical fibers.

Further, the conductance unit comprises a conductor wire core and an insulating layer wrapping the outer portion of the conductor wire core.

Furthermore, an inner core wrapping layer wraps the surface of the filling reinforcing part, and the filling reinforcing part, the light guide unit, the electric conduction unit and the central reinforcing part form an inner core of the cable.

Furthermore, an intensive reinforcing part is arranged between the tightly wrapping layer and the protection unit, and the intensive reinforcing part is composed of a plurality of groups of strip tensile fibers arranged along the length direction of the cable.

Furthermore, the protection unit includes that let out thunder layer, shielding layer, ceramic median, the yarn and the oversheath that block water that wrap up from inside to outside in proper order.

Further, the central reinforcing portion, the filling reinforcing portion, and the dense reinforcing portion constitute the reinforcing unit.

Above-mentioned photoelectric composite mooring cable through divide into light guide unit, electric conductance unit, enhancement unit and the protection unit with the cable, this cable can carry out the synthesis transmission to light, electricity, and has better toughness and to the tolerance of harmful environment, and comprehensive properties is strong.

Drawings

FIG. 1 is a schematic cross-sectional view of a captive cable;

fig. 2 is a perspective view of a captive cable.

In the figure: 100. a reinforcement unit; 110. a central reinforcement portion; 120. filling the reinforcement; 130. a dense reinforcement portion; 200. a light guide unit; 210. a fiber core; 220. a cladding layer; 230. an outer protective layer; 300. a conductance unit; 310. a conductor core; 320. an insulating layer; 400. a protection unit; 410. a mine drainage layer; 420. a shielding layer; 430. a ceramic isolation zone; 440. water-blocking yarn; 450. an outer sheath.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, in one embodiment, a photovoltaic composite mooring cable includes a strength member 100 including a central strength member 110 and a filler strength member 120 wrapped around the central strength member 110; a light guide unit 200 and a conductance unit 300 twisted on the central reinforcing part 110 and positioned inside the filling reinforcing part 120; and a protection unit 400 wrapped outside the filling reinforcement part 120.

In this embodiment, the conductance unit 300 is provided with two sets, which are respectively used for positive and negative transmission of cables, and in addition, a ground wire can be added for further protecting the safety of the unmanned aerial vehicle and the automobile, and the ground wire has the same structure as the conductance unit 300 or only has differences in size and specification.

In this embodiment, the central reinforcement 110 may be made of aramid fiber, and the filling reinforcement 120 may be made of kevlar material for enhancing the performance of the cable, including strength, toughness, and aging resistance.

The photoelectric composite mooring cable can comprehensively transmit light and electricity by dividing the cable into the light guide unit 200, the conductance unit 300, the reinforcing unit 100 and the protection unit 400, and has good toughness, tolerance to adverse environment and strong comprehensive performance.

As shown in fig. 2, in one embodiment, the reinforcement unit 100 further includes a dense reinforcement 130, the dense reinforcement 130 being located between the filling reinforcement 120 and the protection unit 400. The dense reinforcement 130 is formed of a plurality of groups of tensile fibers arranged in a strip shape along the length direction of the cable. The cable is used for further enhancing the strength of the cable and protecting the interior of the cable.

The reinforcing unit 100 enhances the flexibility, folding endurance and pressure resistance of the whole cable by the combination of the central reinforcing part 110, the filling reinforcing part 120 and the dense reinforcing parts, and can better protect the light guide unit 200 and the conductance unit 300 inside the cable.

In the present embodiment, the light guiding unit 200 includes a core 210, a cladding 220 sequentially wrapped around the core 210, and an outer protective layer 230. Wherein, fibre core 210 is formed by many optic fibre strands, and optic fibre can adopt G657 single mode fiber to in transmission car flight signal give unmanned aerial vehicle and with the signal passback that unmanned aerial vehicle detected give the car and be used for the autopilot analysis. The covering layer 220 may be made of nylon, and the outer protection layer 230 may be made of a composite of aramid fiber and polybutylene terephthalate.

In the present embodiment, the conductance unit 300 includes a conductor core 310 and an insulating layer 320 wrapped outside the conductor core 310. The conductor core 310 may be made of a galvanized copper wire, and the insulation layer 320 may be made of fluoroplastic.

In practical use, different from a long-length mooring cable, the sectional area of the cable can be reduced due to lower transmission voltage value and power, so that the weight of the cable is reduced, and the cable is lighter. In addition, the safe current-carrying capacity of the general copper conductor is 5-8A/mm 2 upper and lower ranges of the sectional area S of the copper conductor: (5-8) > < 0.125I-0.2I (mm 2). Wherein S represents the copper wire cross-sectional area (mm2), and I represents the load current (A). Because unmanned aerial vehicle power is low and result in load current low and need not rise the voltage like the major length cable, so this anchor line cable of autopilot usefulness does not need too high sectional area, can effectual lighten cable weight.

In this embodiment, the surface of the filling reinforcement part 120 is wrapped with an inner core wrapping layer, and the inner core wrapping layer may be made of polytetrafluoroethylene. And the core-wrapping layer wraps the filler reinforcement 120, the light guiding unit 200, the conductance unit 300, and the central reinforcement 110 tightly to form the core of the cable.

In the present embodiment, the protection unit 400 includes a mine drainage layer 410, a shielding layer 420, a ceramic isolation tape 430, a water blocking yarn 440, and an outer sheath 450.

The lightning leakage layer 410 can be made of a plurality of strands of aluminum alloy wires, lightning resistance of the cable is improved, and safety is high. The shielding layer 420 may be made of a mesh braid woven by red copper or tinned copper, and is used to prevent interference signals from entering the conductor to affect transmission signals, introduce external interference signals into the ground, reduce the influence of an external electromagnetic field on a power supply or a communication line, and prevent electromagnetic energy from being radiated from the line to the outside, thereby reducing the loss of the transmission signals. The ceramic isolation strip 430 is used to prevent temperature variations from affecting power and signal transmission. The water-blocking yarn 440 can be made of a water-blocking aramid yarn material of a super absorbent resin, and is used for preventing external water flow and rainwater from influencing electric energy and signal transmission, improving the safety and weather resistance of the cable, and preventing the conductor from being oxidized in an accelerated manner due to moisture. The outer sheath 450 may be made of a kevlar fiber material for comprehensive protection of the cable, has all functions of all parts of the reinforcement unit 100 and the protection unit 400, has a strong wear resistance, can withstand multiple bending impacts and complex forces in multiple directions and different degrees without being damaged, is not damaged by mechanical damage and chemical corrosion, and increases the mechanical strength of the cable.

The protection unit 400 can better protect the light guide unit 200, the conductance unit 300 and the reinforcement unit 100 in the cable by combining the mine leakage layer 410, the shielding layer 420, the ceramic isolation belt 430, the water blocking yarn 440 and the outer sheath 450, and can achieve the functions of preventing signal interference, high-temperature interference and water resistance, thereby improving the weather resistance.

In actual production, the radius of the mooring cable is about 8mm and the weight is about 0.354 kg/m. If the unnecessary peripheral dense reinforcement 130 and some of the protection units 400 are removed, this diameter can be reduced to 6mm, the weight can be reduced to 0.15kg/m, and the weight is light.

In conclusion, the mooring cable has the advantages of small length, strong power and signal transmission capability, high transmission efficiency and low cable loss. When collocation unmanned aerial vehicle and car use, because its light in weight, small, will reduce unmanned aerial vehicle and rise required power and energy consumption, reduce the required time of acoustic control simultaneously, improve and respond to the ability. And the bearing capacity is strong, even if the bearing is always in a bearing state such as tension, lateral pressure, distortion, bending or stretching in use, the power supply and the signals can be ensured not to be interrupted.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (8)

1. A photoelectric composite mooring cable is characterized by comprising

A reinforcing unit including a central reinforcing part and a filling reinforcing part wrapped outside the central reinforcing part;

a light guide unit and a conductive unit twisted on the central reinforcing part and positioned in the filling reinforcing part; and a protection unit wrapped outside the filling reinforcement part.

2. The optoelectronic composite mooring cable of claim 1, wherein the light guiding unit comprises a fiber core, a cladding layer sequentially wrapped around the fiber core, and an outer protective layer.

3. The optoelectronic composite tether cable of claim 2, wherein the fiber core is stranded from a plurality of optical fibers.

4. The optoelectronic composite tether cable of claim 1, wherein the electrically conductive unit includes a conductor core and an insulating layer wrapped around an exterior of the conductor core.

5. The opto-electric composite mooring cable of claim 1, wherein the infill reinforcement is surface-wrapped with an inner core-wrapping layer, the infill reinforcement, the light guiding element, the electrical conducting element and the central reinforcement forming an inner core of the cable.

6. The photoelectric composite mooring cable of claim 5, wherein a dense reinforcing part is arranged between the tightening layer and the protection unit, and the dense reinforcing part is composed of a plurality of groups of strip-shaped tensile fibers arranged along the length direction of the cable.

7. The photoelectric composite mooring cable of claim 6, wherein the protection unit comprises a mine drainage layer, a shielding layer, a ceramic isolation belt, a water blocking yarn and an outer sheath which are sequentially wrapped from inside to outside.

8. The photoelectric composite mooring cable of claim 1, wherein the central reinforcement, the filled reinforcement, and the dense reinforcement constitute the strength unit.

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