A control cable for signal line transmission

Abstract

The present invention relates to the field of cable technology and discloses a control cable for signal line transmission, comprising a cable body, the cable body including a central core, an insulating layer disposed on the outer side of the core, the insulating layer being a boron nitride particle-reinforced silicone composite layer, a shielding layer disposed on the outer side of the insulating layer, and a dynamic buffer layer disposed on the outer side of the shielding layer, the dynamic buffer layer having honeycomb cavities disposed axially therein, and the honeycomb cavities being filled with a shear thickening fluid and aluminum nitride particles. This control cable for signal line transmission, by providing an insulating layer comprising a boron nitride particle-reinforced silicone composite layer, in combination with the aluminum nitride particles in the honeycomb cavities and the shear thickening fluid, can provide a heat dissipation effect. The shear thickening fluid ensures ultra-flexible bending under normal conditions, and can instantly harden and disperse stress during impact, achieving effective buffering protection.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a control cable for signal line transmission. Background Art

[0002] Currently, control cables used for signal transmission generally adopt a four-layer basic structure consisting of conductor, insulation layer, shielding layer and sheath. By increasing the thickness of the sheath, they passively protect against external damage and rely on the thermal conductivity of the material itself and natural convection to achieve limited heat dissipation.

[0003] Although the design of the above-mentioned existing technology meets the basic signal transmission needs, it exposes obvious shortcomings in high-density wiring or dynamic scenarios: first, the excessive thermal resistance of the insulation layer causes heat accumulation in the conductor, accelerating insulation aging and causing a decrease in current carrying capacity; second, the sheath only provides static wear resistance and cannot buffer sudden impacts. It is easy for the internal shielding layer to deform and the signal to be distorted due to rolling, and repeated bending can easily cause the conductor to break.

[0004] In addition, existing control cables used for signal line transmission lack dedicated protection solutions for ground laying scenarios. Temporary laying often relies on manual covering with wooden boards or rubber guards, which not only hinders heat dissipation and increases the risk of tripping, but also causes the cables to be frequently crushed and damaged due to loose protection. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing technology has the disadvantages of poor heat dissipation and protection effects. For this purpose, we propose a control cable for signal line transmission.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a control cable for signal line transmission, comprising a cable body, the cable body comprising a wire core located in the middle, an insulating layer being provided on the outside of the wire core, the insulating layer being a silicone composite layer reinforced with boron nitride particles, a shielding layer being provided on the outside of the insulating layer, a dynamic buffer layer being provided on the outside of the shielding layer, a honeycomb cavity being provided in the dynamic buffer layer along the axial direction, and the honeycomb cavity being filled with a shear thickening fluid and aluminum nitride particles, an outer jacket layer being provided on the outside of the honeycomb cavity, and arc-shaped protrusions being uniformly provided on the outside of the outer jacket layer, and the protrusions corresponding to the honeycomb cavity.

[0007] Preferably, a V-shaped groove is provided on the side of the protrusion away from the outer shell layer.

[0008] Preferably, the surface of the protrusion is coated with a conductive carbon paste coating.

[0009] Preferably, a tensile layer is spirally wound between the shielding layer and the insulating layer, and the tensile layer is aramid yarn.

[0010] Preferably, a protective component is provided on the outside of the cable body, and the protective component includes two protective bases rotatably connected together, and V-shaped reinforcement plates are symmetrically embedded on opposite sides of the two protective bases. The two V-shaped reinforcement plates form a triangular structure, and a flexible buffer body is provided inside the V-shaped reinforcement plate, and a channel adapted to the cable body is provided between the two flexible buffer bodies.

[0011] Preferably, side slope bodies are symmetrically arranged on opposite sides of the two protective bases, and the side slope bodies are rotatably connected to the protective base. Initially, the side slope bodies and the protective base form an isosceles trapezoidal structure, and after rotating one of the side slope bodies, a parallelogram structure is formed.

[0012] The surface of the side slope body is provided with a splicing component for combining adjacent side slope bodies.

[0013] Preferably, a mounting groove is provided longitudinally through the surface of the side slope body, and the upper end of the mounting groove is vertically movably connected to the upper driving plate, the upper end of the upper driving plate is an inclined surface adapted to the side slope body, and a protrusion protruding from the surface of the side slope body is provided on the inclined surface, the splicing assembly is provided on the protrusion, the lower end of the mounting groove is vertically movably connected to the lower reinforcement plate, and an elastic member is provided between the lower reinforcement plate and the upper driving plate, and an anti-slip member is provided at the bottom of the lower reinforcement plate.

[0014] Preferably, the anti-slip member is a rubber substrate provided at the bottom of the lower reinforcing plate, and a protrusion is provided at the bottom of the rubber substrate.

[0015] Preferably, the anti-slip member is an anchoring cone provided at the bottom of the lower reinforcement plate, and the lower end of the anchoring cone is conical.

[0016] Preferably, the anti-slip member is a suction cup provided at the bottom of the lower reinforcement plate.

[0017] The technical effects and advantages of the present invention are as follows: In the present invention, the insulating layer is a silica gel composite layer reinforced with boron nitride particles, which, in combination with the aluminum nitride particles in the honeycomb cavity and the shear thickening fluid, can provide a heat dissipation effect. In normal conditions, the shear thickening fluid ensures ultra-flexible bending, and can instantly harden and disperse stress during impact, thereby achieving effective buffering protection. The protrusions increase the surface area of ​​the outer jacket layer, and part of the heat can be dissipated from the surface of the protrusions. The V-shaped grooves on the surface induce turbulent air, thereby reducing the overall thermal resistance and lowering the temperature rise compared to traditional cables. The adjacent protrusions can support and raise the cable body, and when the cable body contacts other planes, a gap is formed between it and the plane, which is conducive to heat dissipation. In the present invention, by cooperating with the side slope bodies arranged in rotation on both sides, local protection of the cable body can be achieved. The triangular support has good stability and compressive resistance. The inclined surface of the side slope body can reduce the entanglement of passing objects and is also convenient for guiding objects to pass through. At the same time, when multiple cable bodies are arranged side by side, one side slope body can be rotated to achieve splicing and combination with the side slope bodies on other cable bodies. The structure is simple, flexible to use, easy to assemble and disassemble, and can be selectively applied to cable bodies in specific scenarios, which increases practicality. The setting of the splicing component can not only facilitate the splicing and combination of adjacent side slope bodies, but also cooperate with the upper drive plate, the lower reinforcement plate and the anti-slip parts to increase the stability of the protective base, the side slope body as a whole and the ground when under pressure. The side slope body will be subjected to vertical and horizontal forces when under stress. Setting the lower reinforcement plate and the upper drive plate to vertical displacement can offset part of the horizontal force, thereby avoiding the passing objects pushing the protective base and the side slope body as a whole to slide and pull the cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The disclosure of the present invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components: Figure 1 Schematic diagram of the cross-sectional structure of the cable body of the present invention; Figure 2 This is a schematic structural diagram of the cable body and the protective base in the matching state of the present invention; Figure 3 This is a schematic diagram of the overall structure of the protective base and side slope body of the present invention; Figure 4 This is a schematic diagram of the structure of the present invention after one of the side slope bodies is rotated; Figure 5 This is a schematic structural diagram of the protective base and side slope body of the present invention in a disassembled state; Figure 6 This is a schematic structural diagram of the protective substrate of the present invention in a disassembled state; Figure 7 It is a schematic diagram of the longitudinal cross-section structure of the side slope body of the present invention; Figure 8 This is a schematic diagram of the explosion structure of the side slope body of the present invention; Figure 9 This is a schematic structural diagram of a first embodiment of an anti-slip member of the present invention; Figure 10 This is a schematic structural diagram of a second embodiment of the anti-slip member of the present invention; Figure 11This is a schematic structural diagram of a third embodiment of the anti-slip member of the present invention; Figure 12 It is a structural schematic diagram of the splicing assembly of the present invention; Figure 13 This is a schematic structural diagram of the present invention when multiple wire cores are arranged side by side and matched with a protective matrix.

[0019] Legend: 1. Cable body; 2. Jacket layer; 3. Dynamic buffer layer; 4. Honeycomb cavity; 5. Protrusion; 6. V-shaped groove; 7. Shielding layer; 8. Tensile layer; 9. Slide groove; 10. Insulation layer; 11. Wire core; 12. Protective base; 13. Side slope; 14. V-shaped reinforcement plate; 15. Flexible buffer; 16. Channel; 17. Depression; 18. Protrusion; 19. Lower reinforcement plate; 20. Upper drive plate; 21. Elastic part; 22. Limit groove; 23. Limit block; 24. Installation groove; 25. Rubber substrate; 26. Anchor cone; 27. Suction cup; 28. Plug; 29. ​​Slot; 30. Limit strip. DETAILED DESCRIPTION

[0020] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention.

[0021] Reference Figure 1As shown, a control cable for signal line transmission includes a cable body 1, and the cable body 1 includes a wire core 11 located in the middle. An insulating layer 10 is provided on the outside of the wire core 11. The insulating layer 10 is a silicone composite layer reinforced with boron nitride particles, that is, the silicone matrix layer is filled with boron nitride particles, which not only has ultra-high thermal conductivity but also has low dielectric loss. A tensile layer 8 is provided on the outside of the insulating layer 10. The tensile layer 8 is an aramid wire spirally wound at 45°. The aramid wire tensile layer spirally wound at 45° forms a bidirectional reinforcement structure, which effectively suppresses the conductor creep of the wire core 11 and maintains flexibility in the transverse direction. When bending, the stress is absorbed by the fiber slippage to avoid wrinkling and deformation of the shielding layer. At the same time, its porous structure provides a diffusion channel for heat transfer, thereby achieving a coordinated leap in mechanical and thermal properties. A shielding layer 7 is provided on the outside of the tensile layer 8. The shielding layer 7 is a conventional structure and will not be described in detail in this application. A dynamic buffer layer 3 is provided on the outside of the shielding layer 7. The dynamic buffer layer 3 is preferably made of thermoplastic polyurethane. A honeycomb cavity 4 is provided, and the honeycomb cavity 4 is filled with a shear thickening fluid and aluminum nitride particles, the shear thickening fluid accounts for 70%, and the aluminum nitride particles account for 25%. At the same time, 5% of a dispersant is added to prevent the aluminum nitride particles from settling. The shear thickening fluid is essentially a non-Newtonian fluid, which is in a liquid state in normal conditions. When impacted, the hydrogen bonds of the particles are instantly locked and turned into a solid state, realizing rigid-flexible switching. The shear thickening fluid is a mature technical means, and this application will not go into too much detail. A jacket layer 2 is provided on the outside of the honeycomb cavity 4. The jacket layer 2 is a conventional structure, and this application will not go into too much detail. The heat of the wire core 11 is first quickly conducted away by the high thermal conductivity boron nitride composite insulation layer, and is transferred to the dynamic buffer layer 3 after passing through the gap in the tensile layer 8. The aluminum nitride particles in the honeycomb cavity 4 construct a three-dimensional heat conduction network, which cooperates with the micro-convection effect of the shear thickening fluid to enhance heat diffusion. Finally, the heat is dissipated through the surface of the jacket layer 2. Under normal conditions, the shear thickening fluid ensures ultra-flexible bending, and can be instantly hardened and dispersed during impact, thereby achieving effective buffering protection.

[0022] like Figure 1-Figure 2As shown, the outer side of the jacket layer 2 is evenly surrounded by arc-shaped protrusions 5, which are co-extruded with the jacket layer 2, and the protrusions 5 correspond to the honeycomb cavities 4. The setting of the protrusions 5 increases the surface area of ​​the jacket layer 2, and part of the heat can be dissipated from the surface of the protrusions 5. Moreover, the adjacent protrusions 5 can support and support the cable body 1, and when the cable body 1 contacts other planes, a gap is formed between it and the plane, which is conducive to heat dissipation. At the same time, in order to prevent the protrusions 5 from increasing the bending radius of the cable body 1, the protrusions 5 are divided into multiple sections and arranged along the length direction of the jacket layer 2; further, the protrusions 5 are away from one side of the jacket layer 2. A V-shaped groove 6 is provided on the side. The V-shaped groove 6 converts the laminar thermal boundary into high-efficiency turbulence through the boundary layer disturbance effect, thereby improving the convective heat dissipation efficiency. It should be noted that the heat dissipation brought about by the increased surface area of ​​the protrusion 5 and the combination of the V-shaped groove 6 is greater than the increase in local thermal resistance caused by the thickening of the protrusion 5, thereby achieving efficiency in exchange for space; furthermore, the surface of the protrusion 5 is coated with a conductive carbon paste coating, and a tip discharge channel is formed by selectively coating the conductive carbon paste coating on the surface of the protrusion 5, thereby improving the electrostatic charge discharge efficiency. At the same time, the conductive carbon paste coating and the shielding layer 7 constitute a distributed capacitor, which can enhance electromagnetic shielding.

[0023] In addition, if Figure 2-Figure 6 As shown, in order to provide local protection for the cable body 1 under special usage environments, a protection component is provided on the outside of the cable body 1, and the protection component includes two protection bases 12 that are rotatably connected together. Specifically, the upper ends of the two protection bases 12 are hinged, and V-shaped reinforcement plates 14 are symmetrically embedded on the opposite sides of the two protection bases 12. The two V-shaped reinforcement plates 14 form a triangular structure with triangular support, which has good stability and pressure resistance. When in the closed state, the bottoms of the two protection bases 12 are locked by bolts, and a flexible buffer body 15 is provided inside the V-shaped reinforcement plate 14, which is preferably made of rubber or silicone. A channel 16 adapted to the cable body 1 is provided between the two flexible buffer bodies 15, and in order to achieve positioning, a recess 17 adapted to the protrusion 5 is provided on the inner wall of the channel 16.

[0024] like Figure 2-Figure 5 、 Figure 13 As shown, in order to reduce tripping and facilitate the passage of objects, especially wheels, side slopes 13 are symmetrically arranged on the opposite sides of the two protective bases 12, and the side slopes 13 are rotatably connected to the protective base 12. Initially, the side slopes 13 and the protective base 12 form an isosceles trapezoidal structure, and after rotating one of the side slopes 13, a parallelogram structure is formed. The parallelogram structure facilitates the combination and splicing of the side slopes 13 on multiple cable bodies 1.

[0025] Further, such as Figure 7-Figure 8As shown, in order to reduce the horizontal force on the side slope body 13, a mounting groove 24 is provided on the surface of the side slope body 13 in a longitudinal direction. The upper end of the mounting groove 24 is vertically movably connected to the upper driving plate 20. The upper end of the upper driving plate 20 is an inclined surface adapted to the side slope body 13, and a protrusion 18 protruding from the surface of the side slope body 13 is provided on the inclined surface. The protrusion 18 is used to come into contact with a passing object, thereby driving the upper driving plate 20 to move downward. The lower end of the mounting groove 24 is vertically movably connected to the lower reinforcing plate 19, and the lower reinforcing plate 19 is connected to the upper driving plate 20. An elastic member 21 is arranged between them. The elastic member 21 is preferably a spring. The spring can not only apply pressure to the lower reinforcing plate 19, but also facilitate the protrusion 18 to bend and move downward to be hidden to avoid being damaged by pressure. In order to limit the lower reinforcing plate 19 and prevent the lower reinforcing plate 19 from being separated from the side slope body 13, a limiting block 23 is installed on the inner wall bolt of the installation groove 24, and a limiting groove 22 is provided on the side of the lower reinforcing plate 19. The limiting block 23 is movably connected to the limiting groove 22 to achieve limitation. In order to increase friction, an anti-slip member is provided at the bottom of the lower reinforcing plate 19.

[0026] The first embodiment of the anti-slip member: Figure 9 As shown, in order to adapt to horizontal non-smooth ground, the anti-slip member is a rubber substrate 25 provided at the bottom of the lower reinforcement plate 19, and a plurality of protrusions are provided at the bottom of the rubber substrate 25. Each time pressure is applied, the pressure between the rubber substrate 25 and the ground increases, thereby increasing friction.

[0027] The second embodiment of the anti-slip member: Figure 10 As shown, in order to adapt to soft ground, the anti-slip parts are multiple anchor cones 26 arranged at the bottom of the lower reinforcement plate 19. The lower end of the anchor cone 26 is conical. The anchor cone 26 can penetrate into the ground when it is compressed for the first time. When the protrusion 18 is compressed subsequently, it will not repeatedly drive the anchor cone 26 to move downward.

[0028] The third embodiment of the anti-slip member: Figure 11 As shown, in order to adapt to the horizontal smooth ground, the anti-slip parts are multiple plastic suction cups 27 arranged at the bottom of the lower reinforcement plate 19. When pressurized, the air can be gradually squeezed out, thereby enhancing the adsorption force. The suction cup 27 can be adsorbed to the horizontal surface when it is pressed for the first time. When the protrusion 18 is subsequently pressurized, it will also apply pressure to the suction cup 27, which can avoid the failure of the suction cup 27 caused by environmental influences such as stability. Therefore, each time the protrusion 18 is pressed, it will generate pressure on the suction cup 27 to ensure effective adsorption.

[0029] In addition, if Figure 12As shown, in order to achieve the stability between the side slope bodies 13 and the side slope bodies 13 in the combined splicing state, a splicing component for combining adjacent side slope bodies 13 is provided on the surface of the side slope body 13, and the splicing component is provided on the protrusion 18. The splicing component includes a plug 28 provided at one end of the protrusion 18, and a slot 29 adapted to the protrusion 18 is provided at the other end of the protrusion 18. The plug 28 on the adjacent side slope body 13 can be plugged into the slot 29, and a slot 29 is provided on the side wall of the plug 28. A limit strip 30 is provided, and the inner wall of the slot 29 is provided with a slide groove 9 adapted to the limit strip 30. The limit strip 30 is used to cooperate with the slide groove 9 for plugging and guiding. Since the side slope body 13 on one side needs to be flipped over to form a parallelogram with the protective base 12 before splicing, the plugs 28 on the two side slope bodies 13 on both sides of the protective base 12 are initially oriented in opposite directions, that is, the two slots 29 are also opposite, so that after flipping, the plugs 28 on the adjacent side slope bodies 13 can be plugged into the slots 29.

[0030] As for the specific working principle of the protective base 12 and the side slope body 13: when in use, if it is a single cable body 1, part of it is on the ground and is easily crushed by foreign objects, the two protective bases 12 can be opened at this time, and the protective base 12 can be sleeved on the outside of the easily crushed area of ​​the cable body 1. Multiple sets of protective bases 12 can be set according to needs, and the cable body 1 will be wrapped by the channel 16. The protrusion 5 can enter the recess 17 to achieve positioning. The bottom of the two combined protective bases 12 is locked by bolts, and the upper ends of the protective bases 12 on both sides are inclined, forming an isosceles trapezoidal structure with the protective base 12, which is convenient for objects to pass through and reduces tripping. When foreign objects pass through the side slope body 13, the protrusion 18 is compressed, and the protrusion 18 drives the upper drive plate 20 to move downward. The upper drive plate 20 compresses the elastic part 21, and the elastic part 21 pushes the lower reinforcement plate 19, and then the lower reinforcement plate 19 increases stability through the anti-slip part at its bottom to avoid horizontal sliding. If it is a smooth horizontal ground When the cable is in a horizontal and non-smooth surface, the suction cup 27 is used to generate negative pressure to increase friction. If the surface is horizontal and non-smooth, the rubber substrate 25 is used to increase friction. If the surface is soft, the anchor cone 26 is used. The anchor cone 26 is pressed into the ground to achieve reinforcement. The selective use increases the overall stability of the protective base 12 and the side slope 13. If multiple cable bodies 1 are used side by side, the protective base 12 is fixed on each cable body 1, and the side slope 13 on one side is rotated to form a parallelogram. Then, it is spliced ​​and combined with a side slope 13 on the adjacent cable body 1. Specifically, the plug 28 at one end of the protrusion 18 on one side slope 13 is inserted into the slot 29 at one end of the protrusion 18 on the other side slope 13, thereby achieving splicing. Finally, multiple protective bases 12 and side slopes 13 also form a parallelogram structure with a horizontal top and side slopes 13 at both ends, which is convenient for protection and for objects to pass through.

[0031] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A control cable for signal line transmission, characterized in that: The invention comprises a cable body (1), wherein the cable body (1) comprises a wire core (11) located in the middle, an insulating layer (10) is provided on the outside of the wire core (11), the insulating layer (10) is a silica gel composite layer reinforced with boron nitride particles, a shielding layer (7) is provided on the outside of the insulating layer (10), a dynamic buffer layer (3) is provided on the outside of the shielding layer (7), a honeycomb cavity (4) is provided in the dynamic buffer layer (3) along the axial direction, and the honeycomb cavity (4) is filled with a shear thickening fluid and aluminum nitride particles, and a jacket layer is provided on the outside of the honeycomb cavity (4). (2), the outer side of the outer jacket layer (2) is uniformly provided with arc-shaped protrusions (5), and the protrusions (5) correspond to the honeycomb cavities (4); the protrusions (5) are provided with a V-shaped groove (6) on the side away from the outer jacket layer (2); the outer side of the cable body (1) is provided with a protective component, and the protective component includes two protective bases (12) connected together by rotation, and the opposite sides of the two protective bases (12) are symmetrically embedded with V-shaped reinforcement plates (14), and the two V-shaped reinforcement plates (14) form a triangular structure, and the V-shaped reinforcement plates (14) are provided with a flexible buffer inside. The two flexible buffer bodies (15) are provided with a channel (16) adapted to the cable body (1); side slope bodies (13) are symmetrically provided on opposite sides of the two protective base bodies (12), and the side slope bodies (13) and the protective base body (12) are rotatably connected. Initially, the side slope bodies (13) and the protective base body (12) form an isosceles trapezoidal structure, and after rotating one of the side slope bodies (13), a parallelogram structure is formed; a splicing component for combining adjacent side slope bodies (13) is provided on the surface of the side slope body (13); the side slope body (13) The surface is provided with a mounting groove (24) running through the longitudinal direction, and the upper end of the mounting groove (24) is vertically movably connected to the upper driving plate (20), the upper end of the upper driving plate (20) is an inclined surface adapted to the side slope body (13), and a protrusion (18) protruding from the surface of the side slope body (13) is provided on the inclined surface, and the splicing assembly is provided on the protrusion (18), the lower end of the mounting groove (24) is vertically movably connected to the lower reinforcement plate (19), and an elastic member (21) is provided between the lower reinforcement plate (19) and the upper driving plate (20), and an anti-slip member is provided at the bottom of the lower reinforcement plate (19).

2. The control cable for signal line transmission according to claim 1, characterized in that: The surface of the protrusion (5) is coated with a conductive carbon paste coating.

3. The control cable for signal transmission according to claim 1, characterized in that: A tensile layer (8) is spirally wound between the shielding layer (7) and the insulating layer (10), and the tensile layer (8) is aramid yarn.

4. The control cable for signal transmission according to claim 1, characterized in that: The anti-slip member is a rubber substrate (25) arranged at the bottom of the lower reinforcement plate (19), and a protrusion is arranged at the bottom of the rubber substrate (25).

5. The control cable for signal transmission according to claim 1, characterized in that: The anti-slip member is an anchoring cone (26) arranged at the bottom of the lower reinforcement plate (19), and the lower end of the anchoring cone (26) is conical.

6. The control cable for signal transmission according to claim 1, characterized in that: The anti-slip member is a suction cup (27) arranged at the bottom of the lower reinforcement plate (19).

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