CN211237759U

CN211237759U - Concentric unmanned aerial vehicle umbilical cable

Info

Publication number: CN211237759U
Application number: CN202020210139.XU
Authority: CN
Inventors: 苑高伟
Original assignee: Shandong Huayuan Cable Co ltd
Current assignee: Shandong Huayuan Cable Co ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-08-11
Anticipated expiration: 2030-02-26

Abstract

The utility model relates to the technical field of cables, and discloses a concentric type unmanned aerial vehicle umbilical cable, which comprises a single mode fiber, wherein the single mode fiber is used as a cable core, and the single mode fiber outer layer is sequentially provided with a fiber loose sleeve, a first conductor layer, a first insulation layer, a second conductor layer, a second insulation layer, a high-strength tensile layer and an outer sheath layer which are concentric with the single mode fiber outer layer; the first conductor layer and the second conductor layer are conductive metal nets woven by fine metal wires; at the tip of umbilical cable, first conductive layer and second conductive layer strand respectively or stranded metal wire are connected to on the binding post that unmanned aerial vehicle corresponds. The utility model discloses compare with traditional unmanned aerial vehicle umbilical cable, because whole root cable adopts the concentric structure, under the unchangeable condition of pulling force, dispersed the copper wire conductor, reduced the external diameter, the further reduction of total external diameter, the total weight of cable. Further reduced the windage coefficient, reduced unmanned aerial vehicle's load, it is more compact to make the concentric type umbilical cable after the improvement break through traditional structure.

Description

Concentric unmanned aerial vehicle umbilical cable

Technical Field

The utility model relates to the technical field of cables, especially indicate a concentric type unmanned aerial vehicle umbilical cable.

Background

Ordinary unmanned aerial vehicle umbilical cable is formed by the dedicated filler crisscross combination each other of original heart yearn, optic fibre and cable, and the unmanned aerial vehicle umbilical cable of this kind of structure although can satisfy the use, but because traditional cable structure's restriction, external diameter and weight can't further reduce again, continue the reduction and will influence unmanned aerial vehicle's service power and function. Therefore, in the umbilical of the conventional structure, if the external diameter and the weight are to be reduced, the existing structure needs to be further adjusted.

SUMMERY OF THE UTILITY MODEL

The utility model provides a concentric type unmanned aerial vehicle umbilical cable has solved the problem that the external diameter and the weight of umbilical cable can't further reduce among the prior art again.

The technical scheme of the utility model is realized like this: a concentric unmanned aerial vehicle umbilical cable comprises single-mode optical fibers, wherein the single-mode optical fibers are used as cable cores, and an optical fiber loose sleeve, a first conductor layer, a first insulating layer, a second conductor layer, a second insulating layer, a high-strength tensile layer and an outer sheath layer which are concentric with the single-mode optical fibers are sequentially arranged on the outer layer of the single-mode optical fibers; the first conductor layer and the second conductor layer are conductive metal nets woven by fine metal wires; at the tip of umbilical, first conductor layer and second conductor layer strand into respectively on one or stranded metal wire connects to the binding post that unmanned aerial vehicle corresponds.

Preferably, the first insulating layer and the second insulating layer are both made of PE insulating material with specific gravity less than 1.

As a preferred technical scheme, the high-strength tensile layer is a kevlar braided layer.

Preferably, the outer sheath layer is a TPV sheath layer.

As a preferred technical solution, the first conductor layer and the second conductor layer are respectively used for electrically connecting the positive electrode and the negative electrode of the dc power supply.

The beneficial effects of the utility model reside in that: the utility model discloses compare with traditional unmanned aerial vehicle umbilical cable, because whole root cable adopts the concentric structure, under the unchangeable condition of pulling force, dispersed the copper wire conductor, reduced the external diameter, the further reduction of total external diameter, the total weight of cable. Further reduced the windage coefficient, reduced unmanned aerial vehicle's load, it is more compact to make the concentric type umbilical cable after the improvement break through traditional structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic diagram of a conventional umbilical;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

fig. 3 is a schematic diagram of an electrical connection according to an embodiment of the present invention.

In the figure, 1-single mode fiber; 2-optical fiber loose sleeve; 3-a first conductor layer; 4-a first insulating layer; 5-a second conductor layer; 6-a second insulating layer; 7-a high strength tensile layer; 8-an outer jacket layer; 9-a wiring terminal; 10-a core wire; 11-a first wire; 12-second conductor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and the descriptions of these embodiments are used to help understanding the present invention, but do not constitute a limitation of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1, a general umbilical cable is formed by twisting a plurality of core wires 10, the core wires inside the umbilical cable may be twisted pairs or special communication cables, a filler is disposed between the core wires 10, and an outer sheath layer 8 is disposed at the outermost layer.

Because inside heart yearn 10 itself has certain external diameter, many heart yearns 10 and the filler between them can make the whole external diameter of umbilical too big certainly, and the external diameter and the weight of umbilical are directly proportional, and consequently the umbilical external diameter is big, must make unmanned aerial vehicle's load increase.

As shown in fig. 2 and fig. 3, the utility model relates to a concentric unmanned aerial vehicle umbilical cable, including single mode fiber 1, single mode fiber 1 is as the cable core, and single mode fiber 1 skin is equipped with rather than concentric optic fibre loose tube 2, first conductor layer 3, first insulating layer 4, second conductor layer 5, second insulating layer 6, high strength tensile layer 7 and oversheath layer 8 in proper order; the first conductor layer 3 and the second conductor layer 5 are conductive metal meshes woven by fine metal wires, and the metal wires are preferably copper wires.

At the tip of umbilical, first conductor layer 3 and second conductor layer 5 strand one or stranded metal wire are connected to on the binding post 9 that unmanned aerial vehicle corresponds into respectively.

The optical fiber loose sleeve 2 is used for protecting the optical fiber and reducing the tensile force damage of the external to the optical fiber.

The first insulating layer 4 and the second insulating layer 6 are made of PE insulating material with specific gravity smaller than 1 so as to reduce the weight of the umbilical cable.

The high-strength tensile layer 7 is a Kevlar braided layer to enhance the tensile strength added by the cable.

The outer sheath layer 8 is an ultraviolet-resistant TPV sheath layer with small specific gravity and high mechanical strength.

In this embodiment, preferably, the first conductor layer 3 and the second conductor layer 5 are respectively used for electrically connecting the positive electrode and the negative electrode of the power supply, that is, used as the power supply line of the drone.

The utility model discloses in manufacturing process of the formula of working with heart unmanned aerial vehicle umbilical cable that relates, including following step:

1) taking the single-mode optical fiber 1 as a center, extruding and wrapping an insulating material outside the single-mode optical fiber 1 to form an optical fiber loose sleeve 2, arranging polyester yarns outside the single-mode optical fiber 1, and tightly wrapping the polyester yarns and the single-mode optical fiber 1 when the optical fiber loose sleeve 2 is formed by extrusion;

2) tightly wrapping a plurality of fine metal wires outside the optical fiber loose sleeve 2 through weaving or winding to form a first conductor layer 3;

3) extruding an insulating material outside the first conductor layer 3 to form a first insulating layer 4;

4) tightly wrapping a plurality of fine metal wires with the outer side of the first insulating layer 4 through weaving or winding to form a second conductor layer 5;

5) extruding an insulating material outside the second conductor layer 5 to form a second insulating layer 6;

6) weaving tensile fibers outside the second insulating layer 6 by a weaving machine to form a high-strength tensile layer 7;

7) and extruding an insulating material outside the high-strength tensile layer 7 to form an outer sheath layer 8.

In this embodiment, as shown in fig. 3, in the connection mode of the umbilical cable, at two ends of the umbilical cable, the outer sheath layer 8, the high-strength tensile layer 7 and the second insulating layer 6 are cut open, the second conductor layer 5 is exposed, the metal wires constituting the second conductor layer 5 are twisted into one or more second wires 12, the outer side of the second wires 12 is wound with an insulating tape, the first insulating layer 4 is continuously cut open, the first conductor layer is exposed, the metal wires constituting the first conductor layer 3 are twisted into one or more first wires 11, and the first wires 11 are wound with the insulating tape; and continuously splitting the optical fiber loose sleeve 2, winding an isolation adhesive tape on the outer layer of the single-mode optical fiber 1, ensuring insulation between the first lead 11 and the second lead 12, and connecting the first lead 11, the second lead 12 and the single-mode pipeline with the corresponding connecting terminal 9.

The utility model discloses in, through adopting light-duty material, connect unmanned aerial vehicle with annular wire mesh as the conductor, make the external diameter of umbilical cable littleer, weight is lighter, and the structure is retrencied more.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A concentric unmanned aerial vehicle umbilical cable is characterized by comprising a single mode optical fiber, wherein the single mode optical fiber is used as a cable core, and an optical fiber loose sleeve, a first conductor layer, a first insulation layer, a second conductor layer, a second insulation layer, a high-strength tensile layer and an outer sheath layer which are concentric with the single mode optical fiber are sequentially arranged on the outer layer of the single mode optical fiber; the first conductor layer and the second conductor layer are conductive metal nets woven by fine metal wires; at the tip of umbilical, first conductor layer and second conductor layer strand into respectively on one or stranded metal wire connects to the binding post that unmanned aerial vehicle corresponds.

2. The concentric unmanned aerial vehicle umbilical of claim 1, wherein: the first insulating layer and the second insulating layer are made of PE insulating materials with specific gravity smaller than 1.

3. The concentric unmanned aerial vehicle umbilical of claim 1, wherein: the high-strength tensile layer is a Kevlar woven layer.

4. The concentric unmanned aerial vehicle umbilical of claim 1, wherein: the outer jacket layer is a TPV jacket layer.

5. The concentric unmanned aerial vehicle umbilical of claim 1, wherein: the first conductor layer and the second conductor layer are respectively used for electrically connecting the positive electrode and the negative electrode of the power supply.