Light mooring cable for unmanned aerial vehicle

Abstract

The utility model discloses a light mooring cable for an unmanned aerial vehicle, which belongs to the field of cables and comprises a conductor assembly and an optical fiber assembly which are in contact with each other. The outer sheath comprises a sheath body and a plurality of protruding parts, the conductor assembly and the optical fiber assembly are wrapped with the sheath body, and the protruding parts are all arranged outside the sheath body. The technical effect of the utility model is that the interior of the device is not easy to damage.

Description

Technical Field

[0001] The utility model relates to a cable, in particular to a light tethered cable for an unmanned aerial vehicle. Background Art

[0002] A tethered cable is a cable used to connect a drone and a ground station, facilitating the transmission of power, data, and information between the drone and the ground station.

[0003] The related retention cables will move with the drone during use, which may cause the related retention cables to be hit, thereby causing damage to the inside of the related retention cables. Utility Model Content

[0004] Purpose of the utility model: The purpose of the utility model is to provide a lightweight tethering cable for a drone, the interior of which is not easily damaged.

[0005] Technical solution: A lightweight tethered cable for a drone, comprising:

[0006] Conductor components and optical fiber components in contact with each other;

[0007] The outer sheath comprises a sheath body and a plurality of protrusions. The sheath body is wrapped around the conductor assembly and the optical fiber assembly, and the plurality of protrusions are arranged outside the sheath body.

[0008] Optionally, adjacent protrusions are connected to each other.

[0009] Optionally, the plurality of protrusions are evenly distributed along the circumference of the sheath body.

[0010] Optionally, the conductor assembly includes:

[0011] Conductor unit;

[0012] A fire-resistant tape layer and an insulating layer sequentially wrapped around the conductor unit;

[0013] Wherein, the insulating layer is wrapped in the sheath body.

[0014] Optionally, the conductor unit includes a plurality of conductor bodies twisted together, and the plurality of conductor bodies are all wrapped in the fire-resistant tape layer.

[0015] Optionally, the conductor body includes:

[0016] Polyester fiber;

[0017] A tinned copper foil tape spirally wound around the polyester fiber;

[0018] The polyester fibers and tinned copper foil tapes of the conductor bodies are twisted together and wrapped in the fire-resistant tape layer.

[0019] Optionally, it also includes a water-blocking layer wrapped around the conductor component and the optical fiber component, and the water-blocking layer is wrapped inside the sheath body.

[0020] Optionally, a tensile-resistant filling component is further included, and the tensile-resistant filling component is provided between the conductor component and the optical fiber component, and between the conductor component, the optical fiber component and the sheath body.

[0021] Beneficial effects: The plurality of raised portions facilitate reducing the contact area between the tethered cable of the present application and other objects, can prevent scratching and rubbing, have low friction, and reduce the pulling force of other objects on the tethered cable of the present application. When the tethered cable of the present application collides with other objects, the plurality of raised portions act as a buffer layer, directly contacting with other objects, isolating the internal conductor components and optical fiber components of the tethered cable of the present application from a distance, and removing most of the collision force, so that the interior of the tethered cable of the present application is not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a light tethered cable for a UAV of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the conductor assembly of the utility model;

[0024] In the figure: 1. conductor assembly; 11. conductor unit; 12. fire-resistant tape layer; 13. insulation layer; 2. optical fiber assembly; 3. outer sheath; 31. sheath body; 32. raised portion; 4. water-blocking layer; 5. tensile filling assembly. DETAILED DESCRIPTION

[0025] In order to make the technical solution of the utility model clearer, the utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] Combination Figure 1-2 , this embodiment provides a lightweight tethered cable for a drone, comprising:

[0028] A conductor component 1 and an optical fiber component 2 in contact with each other;

[0029] The outer sheath 3 includes a sheath body 31 and a plurality of protrusions 32 . The sheath body 31 is wrapped around the conductor assembly 1 and the optical fiber assembly 2 , and the plurality of protrusions 32 are arranged outside the sheath body 31 .

[0030] Specifically, the conductor assembly 1 is used to transmit electrical energy; the optical fiber assembly 2 is used to transmit data, information, etc.; the sheath body 31 is used to protect the conductor assembly 1 and the optical fiber assembly 2; the plurality of raised portions 32 are convenient for reducing the contact area between the tethered cable of the present application and other objects, can prevent scratching and rubbing, have low friction, and reduce the pulling force of other objects on the tethered cable of the present application. When the tethered cable of the present application collides with other objects, the plurality of raised portions 32 act as a buffer layer, directly contacting other objects, isolating the conductor assembly 1 and the optical fiber assembly 2 inside the tethered cable of the present application from a distance, and removing most of the collision force, so that the inside of the tethered cable of the present application is not easily damaged, wherein the cross-sectional shape of the raised portion 32 is preferably an arc shape, and the curvature of the arc is not too large, otherwise it will cause the bending degree of the arc to be too large, thereby causing the gap between adjacent arcs to be too deep, and then other objects such as sand, gravel, branches, etc. will be mixed, and finally increase the weight of the tethered cable of the present application and damage the tethered cable of the present application. At the same time, when the present application When the tethered cables are wound together, the protrusions 32 may be embedded in each other, causing inconvenience in reeling in and releasing the line and using it. The curvature of the arc should not be too small, otherwise the curvature of the arc will be too small, the arc will be too flat, the contact area will increase, the anti-scratch and anti-rubbing effects will be weakened, and the friction will also increase, and the pulling force between other objects will also be greater. In addition, when a collision occurs, the contact area with other objects is large, and the collision damage cannot be effectively reduced; the sheath body 31 and the plurality of protrusions 32 are preferably extruded as a whole, and the material of the sheath body 31 and the plurality of protrusions 32 are preferably silicone rubber, which is soft and elastic, and can prevent the collision damage of the tethered cable of the present application. Its temperature resistance range is -60°C to 250°C, and it can maintain its softness, elasticity and physical properties for a long time at high and low temperatures. It also has the characteristics of ozone resistance, UV resistance, good air tightness, etc., which can increase the service life of the tethered cable of the present application. In addition, as a green, environmentally friendly and energy-saving silicone raw material, it will not release harmful substances during use and is environmentally friendly.

[0031] Further, such as Figure 1 , adjacent protrusions 32 are connected to each other.

[0032] Specifically, the plurality of protrusions 32 completely cover the outer circumference of the sheath body 31 , thereby ensuring good buffering performance of the plurality of protrusions 32 .

[0033] Further, such as Figure 1 A plurality of protrusions 32 are evenly distributed along the circumference of the sheath body 31 .

[0034] Specifically, the circumferential uniform distribution facilitates increasing the force uniformity of the sheath body 31 .

[0035] Further, such as Figure 2 , the conductor assembly 1 comprises:

[0036] Conductor unit 11;

[0037] A fire-resistant tape layer 12 and an insulating layer 13 sequentially wrapped around the conductor unit 11;

[0038] The insulating layer 13 is wrapped in the sheath body 31 .

[0039] Specifically, the conductor unit 11 is used to transmit electric energy; the fire-resistant tape layer 12 is used for fire resistance, and preferably calcined mica tape is used, and the thickness is preferably 0.10mm. The calcined mica tape has a compact lattice and high crystallinity, and has strong thermal stability. The temperature resistance level can reach 950-1000°C, and it is not easy to deform or crack at high temperatures. It can also maintain good insulation properties at high temperatures. At the same time, it has excellent acid and alkali resistance. In harsh environments such as strong acids and strong alkalis, the calcined mica tape shows strong stability. The above excellent performance can ensure that the moored cable of the present application can still be used under conditions of extreme high temperatures and fire. The UAV equipment continuously transmits power to improve its working stability and endurance; the insulating layer 13 is used for insulation, and PTFE plastic is preferably used, and the thickness is preferably 0.20-0.30 mm. PTFE plastic has excellent heat resistance and cold resistance, and can be used for a long time in the temperature range of 200-260°C. PTFE plastic has excellent chemical stability, is almost insoluble in all solvents, and is resistant to acids and alkalis, and various organic solvents. PTFE plastic has a very low dielectric constant and dielectric loss, and can maintain the insulation performance of the tethered cable of this application within a wide temperature range.

[0040] Further, such as Figure 2 The conductor unit 11 includes a plurality of conductor bodies twisted together, and the plurality of conductor bodies are all wrapped in a fire-resistant wrapping layer 12 .

[0041] Specifically, the plurality of conductor bodies twisted together facilitates the conductor unit 11 to have good bending properties.

[0042] Further, such as Figure 2 , the conductor body comprises:

[0043] Polyester fiber;

[0044] Tinned copper foil tape spirally wrapped around polyester fabric;

[0045] The polyester fibers and tinned copper foil tapes of the conductor bodies are twisted together and wrapped in a fire-resistant tape layer 12 .

[0046] Specifically, the polyester fiber is used to withstand longitudinal tension and a certain gap is retained between the tinned copper foil tapes when winding, so that the tinned copper foil tape can avoid large force deformation when the conductor body is bent, so that it has good elasticity, softness, tensile strength and bending resistance, especially the bending resistance is much higher than that of ordinary round wire conductors; the tinned copper foil tape is used to transmit electrical energy, and tinning can prevent the copper foil tape from reacting with oxygen in the air, thereby slowing down the oxidation process and maintaining the conductive properties and appearance of the copper foil tape.

[0047] Further, such as Figure 1 , and also includes a water-blocking layer 4 wrapped around the conductor component 1 and the optical fiber component 2, and the water-blocking layer 4 is wrapped inside the sheath body 31.

[0048] Specifically, the water-blocking layer 4 is used for water blocking, and preferably adopts an aluminum-plastic composite tape longitudinal wrapping. The aluminum-plastic composite tape has the properties of moisture-proof, water-blocking, heat-insulating, thermal-insulating, and corrosion-resistant, and can effectively prevent moisture and liquid from damaging the internal structural components. At the same time, it has good anti-electromagnetic interference and shielding attenuation effects, thereby ensuring the communication transmission quality and power supply stability of the tethered cable of the present application.

[0049] Further, such as Figure 1 , and also includes a tensile filling component 5, between the conductor component 1 and the optical fiber component 2, and between the conductor component 1 and the optical fiber component 2 and the sheath body 31.

[0050] Specifically, the tensile filling component 5 is used to fill and increase the tensile performance. Bulletproof wire is preferably used, and the material is kevlar fiber. The bulletproof wire structure is dimensionally stable, heat-resistant, acid-resistant, and aging-resistant. It has the characteristics of high tensile strength, high tensile force, low elongation, high modulus, and high breaking strength. These characteristics enable the bulletproof wire to maintain good performance under complex environmental conditions, ensuring that the tethered cable of the present application can work normally and stably in harsh environments (such as strong winds, heavy rains, and dust).

[0051] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A lightweight tethered cable for a drone, characterized in that: include: Conductor components and optical fiber components in contact with each other; The outer sheath comprises a sheath body and a plurality of protrusions. The sheath body is wrapped around the conductor assembly and the optical fiber assembly, and the plurality of protrusions are arranged outside the sheath body.

2. A lightweight tethered cable for a drone according to claim 1, characterized in that: Adjacent protrusions are connected to each other.

3. A lightweight tethered cable for a drone according to claim 2, characterized in that: The plurality of protrusions are evenly distributed along the circumference of the sheath body.

4. A lightweight tethered cable for a drone according to any one of claims 1 to 3, characterized in that: The conductor assembly comprises: Conductor unit; A fire-resistant tape layer and an insulating layer sequentially wrapped around the conductor unit; Wherein, the insulating layer is wrapped in the sheath body.

5. A lightweight tethered cable for a drone according to claim 4, characterized in that: The conductor unit comprises a plurality of conductor bodies twisted together, and the plurality of conductor bodies are all wrapped in the fire-resistant wrapping layer.

6. A lightweight tethered cable for a drone according to claim 5, characterized in that: The conductor body comprises: Polyester fiber; A tinned copper foil tape spirally wound around the polyester fiber; The polyester fibers and tinned copper foil tapes of the conductor bodies are twisted together and wrapped in the fire-resistant tape layer.

7. A lightweight tethered cable for a drone according to any one of claims 1 to 3, characterized in that: It also includes a water-blocking layer wrapped outside the conductor component and the optical fiber component, and the water-blocking layer is wrapped inside the sheath body.

8. A lightweight tethered cable for a drone according to any one of claims 1 to 3, characterized in that: It also includes a tensile filling component, which is provided between the conductor component and the optical fiber component, and between the conductor component, the optical fiber component and the jacket body.

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