Lightweight unmanned aerial vehicle control wire harness

Abstract

The utility model relates to the technical field of control wire harnesses, in particular to a light-weight unmanned aerial vehicle control wire harness, which comprises a first core body and a second core body, first braid layers are arranged on the outer sides of the first core body and the second core body, an outer sheath is wrapped on the outer sides of the two first braid layers, and the outer sheath is wrapped on the outer side of the first core body and the outer side of the second core body. The outer sheath is located between the two first braid layers to form a necking part; according to the utility model, by adopting a mode of integrating multiple wire cores, the weight of the whole wire harness is effectively reduced while different functional requirements are met, and the wire harness can be applied to collidable spherical unmanned aerial vehicles, wire harness support equipment, such as high-definition cameras, thermal imaging, lighting systems, digital video transmission systems and the like, can work in various severe environments, and is suitable for popularization and application. And meanwhile, load reduction and efficiency improvement of the flight tool are realized, continuous flight can be carried out in a long-distance or large-range scene, and the autonomous patrol flight efficiency of the unmanned aerial vehicle is exerted to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of control harnesses, and in particular to a lightweight unmanned aerial vehicle control harness. Background Art

[0002] At present, innovative technologies and services of unmanned systems are widely used in professional fields such as smart cities, logistics and transportation, emergency rescue, aerial surveying, and environmental protection, injecting continuous power and vitality into the low-altitude economy.

[0003] In the design of drones, in order to realize multiple functions such as high-definition cameras, thermal imaging, lighting systems, digital video transmission systems, etc., wiring is required according to different functions. However, the traditional wiring structure requires the design of multiple wire harnesses, which not only takes up a large space, but also increases the weight of the drone. Excessive weight will seriously affect the flight load of the drone, thereby reducing its endurance.

[0004] Therefore, in order to reduce the occupied space and weight to improve the endurance of the UAV, we propose a lightweight UAV control harness. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a lightweight UAV control harness.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A lightweight UAV control harness is designed, comprising a first core and a second core, wherein a first braided layer is disposed on the outer side of the first core and the second core, and an outer sheath is wrapped around the outer side of the two first braided layers, and the outer sheath is located between the two first braided layers to form a necking portion;

[0008] Wherein, an aluminum foil layer is also sheathed inside the first braided layer, and a ground wire is placed inside the aluminum foil layer.

[0009] Furthermore, the first core body includes two wire cores A and three wire cores B, and a plurality of first filling pieces are distributed between the wire cores A and B.

[0010] Furthermore, the wire core A includes a core material and a second braided layer obliquely wrapped around the core material, and an insulating layer is also sheathed on the outer side of the second braided layer.

[0011] Furthermore, the first braided layer and the second braided layer are both configured as silver-plated aluminum-magnesium alloy conductor braided layers.

[0012] Furthermore, the second core body includes two twisted cores C, core D and two twisted cores E, and a second filler is arranged between the cores C, D and E.

[0013] Furthermore, the aluminum foil layer is an aluminum-plastic composite tape.

[0014] The utility model proposes a lightweight UAV control harness, which has the beneficial effect that: the utility model adopts a multi-core integration method to effectively reduce the weight of the entire harness while meeting different functional requirements, and can be used for collidable spherical UAVs. The harness supports equipment such as high-definition cameras, thermal imaging, lighting systems, digital video transmission systems, etc., and can work in various harsh environments. At the same time, it achieves "burden reduction and efficiency improvement" of the flying tool, and can perform continuous flight in long-distance or large-scale scenes, maximizing the autonomous patrol efficiency of the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] In the figure: 1. first core body; 11. core A; 111. core material; 112. second braided layer; 113. insulating layer; 12. core B; 13. first filler; 2. second core body; 21. core C; 22. core D; 23. core E; 24. second filler; 3. first braided layer; 4. outer sheath; 41. necking part; 5. aluminum foil layer; 6. ground wire. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Reference Figure 1 An embodiment of the utility model discloses a lightweight UAV control harness, which comprises a first core 1 and a second core 2. A first braided layer 3 is provided on the outer side of the first core 1 and the second core 2. The outer sides of the two first braided layers 3 are wrapped with an outer sheath 4. The outer sheath 4 is located between the two first braided layers 3 to form a necking portion 41. The necking portion 41 is designed to reduce the occupied volume of the connection between the first core 1 and the second core 2, which can save materials and reduce weight to meet the lightweight requirements.

[0019] The first braided layer 3 is further covered with an aluminum foil layer 5 , and a ground wire 6 is placed inside the aluminum foil layer 5 .

[0020] Specifically, the outer sheath 4 described in this embodiment is extruded in one piece using a special light-density thermoplastic elastomer to ensure that when the cable sheath has different signal transmission requirements, signals are prevented from interfering with each other, and the outer diameter of the wire needs to be minimized.

[0021] In some embodiments, the first core body 1 in the utility model includes two wire cores A11 and three wire cores B12, and a plurality of first filling pieces 13 are distributed between the wire cores A11 and B12. The wire core A11 adopts Class 5 soft-twisted copper alloy, and the single-filament wire diameter is controlled within 0.05 mm. When the wire core A11 is twisted, the conductor pitch is within 8 mm, and the conductor layer adopts S-twisting to ensure the stability of the conductor structure. At the same time, the conductor has a round appearance, and the entire wire exhibits good softness and high tensile strength.

[0022] On the basis of the above embodiments, the wire core A11 in the utility model includes a core material 111 and a second braided layer 112 obliquely wrapped around the outside of the core material 111, and an insulating layer 113 is also sleeved on the outside of the second braided layer 112, wherein the insulating layer 113 is made of ultra-thin and lightweight fluoroplastic, which gives the core wire excellent electrical properties while ensuring the physical and mechanical properties and breakdown resistance of the entire wire. At the same time, the temperature resistance grade of the fluoroplastic insulation material is -60~200℃, ensuring that the wire maintains normal operation under high and low temperatures.

[0023] In addition, in this embodiment, the first braided layer 3 and the second braided layer 112 are both set as silver-plated aluminum-magnesium alloy conductor braided layers. The shielding conductor uses a silver-plated aluminum-magnesium alloy conductor, which is lighter than the ordinary copper shielding weight and has a better shielding effect. Further, in this embodiment, the braiding is woven according to 24 spindles, and the silver-plated aluminum-magnesium alloy copper braiding is used to ensure the shielding effect of the wire while reducing the weight and softness of the wire. Compared with the ordinary tinned copper braiding, the weight can be reduced by 10% after using the alloy braiding, and the endurance of the drone is increased by weight reduction;

[0024] Secondly, since the second braided layer 112 adopts an oblique wrap design, the oblique wrap has good anti-interference ability and can effectively reduce the influence of external electromagnetic interference on signal quality.

[0025] Furthermore, in this embodiment, the second core body 2 includes two twisted cores C21, core D22 and two twisted cores E23, and a second filler 24 is also arranged between the cores C21, core D22 and core E23. The core E23 adopts an ultra-fine conductor to meet the USB performance requirements and is used in digital video transmission systems.

[0026] It is worth pointing out that in this embodiment, the twisted core wire E23 is a USB performance wire, the coaxial core wire A11 is used for signal transmission, the core wire D22 is for power, and the core wire B12 and the core wire C21 are control wires.

[0027] It should be noted that the first filling piece 13 and the second filling piece 24 described in this embodiment have the same structure. Specifically, in order to effectively improve the flexibility of the product during frequent movement and twisting during use, high-strength bullet-proof wire is used in the filling of the product to ensure the softness of the product while greatly improving the tensile strength of the product, and avoiding the strong collision force when the drone carries a spherical anti-collision layer during flight, and excessive stretching causing the conductor and insulation layer to be broken or damaged, thereby affecting the power supply and signal transmission.

[0028] In addition, the aluminum foil layer 5 in this embodiment is an aluminum-plastic composite tape, and the aluminum foil uses aluminum foil on the front and Mylar tape on the back. When the ground wire is cabled, it is dragged into the aluminum foil to ensure the roundness of the twisted pair. The aluminum foil isolates the shielding layer and the ground wire to prevent short circuits during swinging and bending.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lightweight UAV control harness, comprising a first core (1) and a second core (2), characterized in that: A first braided layer (3) is provided on the outside of the first core (1) and the second core (2); the outsides of the two first braided layers (3) are wrapped with an outer sheath (4); the outer sheath (4) is located between the two first braided layers (3) to form a necking portion (41); An aluminum foil layer (5) is also sleeved inside the first braided layer (3), and a ground wire (6) is placed inside the aluminum foil layer (5).

2. A lightweight UAV control harness according to claim 1, characterized in that: The first core body (1) comprises two wire cores A (11) and three wire cores B (12), and a plurality of first filling pieces (13) are distributed between the wire cores A (11) and the wire cores B (12).

3. A lightweight UAV control harness according to claim 2, characterized in that: The wire core A (11) comprises a core material (111) and a second braided layer (112) obliquely wrapped around the core material (111), and an insulating layer (113) is further sheathed on the outer side of the second braided layer (112).

4. A lightweight UAV control harness according to claim 3, characterized in that: The first braided layer (3) and the second braided layer (112) are both configured as silver-plated aluminum-magnesium alloy conductor braided layers.

5. The lightweight UAV control harness according to claim 1, characterized in that: The second core body (2) comprises two twisted cores C (21), a core D (22) and two twisted cores E (23), and a second filler (24) is arranged between the cores C (21), the cores D (22) and the cores E (23).

6. The lightweight UAV control harness according to claim 1, characterized in that: The aluminum foil layer (5) is an aluminum-plastic composite tape.

Images