A cable

Abstract

The utility model relates to cable line technical field discloses a kind of cables, comprising: central component, conducting group, outer sheath and spiral channel.Central component, central component includes at least one center conductor and / or center reinforcing core.Conducting group, conducting group is multiple, and multiple conducting groups are annularly distributed around the outer periphery of central component, and each conducting group includes at least two spiral twisted settings conducting body wrapped by insulating layer.Outer sheath, outer sheath is sleeved on the outside of all conducting groups.Spiral channel, spiral channel is set in outer sheath, and the spiral direction of spiral channel extends along the length direction of outer sheath.Through the annular distribution of multiple conducting groups on the outer periphery of central component, so that cable conducting unit layout is more regular, and insulation is more reliable;Meanwhile, outer sheath sets up the spiral channel extending along length direction, so that cable internal can reserve heat dissipation or wiring space, to enhance heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a cable. Background Technology

[0002] Cables are widely used for power and signal transmission and must have good conductivity, insulation properties, and certain shielding and mechanical protection functions.

[0003] Currently, most common cable structures adopt a solid outer sheath design. Although it provides basic protection, in practical applications, heat is difficult to dissipate effectively. After long-term operation, the internal temperature is prone to rise too high, which accelerates the aging of the insulation material and affects the service life and operational safety of the cable.

[0004] Therefore, there is an urgent need for a cable to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide a cable to solve the problem of cable heat dissipation.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A cable comprising: A central assembly, the central assembly comprising at least one central conductor and / or a central reinforcing core; The conductive group is a plurality of groups, which are arranged in a ring around the outer periphery of the central component. Each group of the conductive group includes at least two spirally twisted conductors wrapped in an insulating layer. An outer sheath, which is fitted over the outside of all the conductive groups; A spiral channel is formed in the outer sheath, and the spiral direction of the spiral channel extends along the length direction of the outer sheath.

[0007] As a preferred embodiment of the cable, the spiral channel is provided with spacers arranged in an array along the channel direction of the spiral channel.

[0008] As a preferred embodiment of the cable, the spacer bar is made of a spiral bar.

[0009] As a preferred embodiment of the cable, a first-direction spiral metal braided mesh is provided between the outer side of all the conductive groups and the inner side of the outer sheath, and the first-direction spiral metal braided mesh wraps around the outer periphery of all the conductive groups.

[0010] As a preferred embodiment of the cable, a second-direction spiral metal braid is provided on the outer side of the first-direction spiral metal braid, and the spiral direction of the second-direction spiral metal braid is opposite to that of the first-direction spiral metal braid.

[0011] As a preferred embodiment of the cable, the second-direction spiral metal braided mesh is fixed to the first-direction spiral metal braided mesh at the braiding nodes by spot welding of metal wires.

[0012] As a preferred embodiment of the cable, the inner wall of the spiral channel is provided with a wear-resistant coating to increase the integrity of the spiral channel.

[0013] The beneficial effects of this utility model are as follows: by distributing multiple sets of conductive groups in a ring around the outer periphery of the central component, and by wrapping at least two spirally twisted conductors with an insulating layer in each set of conductive groups, the cable conductive unit layout is more regular and the insulation is more reliable, thereby reducing signal interference between conductors and improving the stability of current transmission; at the same time, the outer sheath has a spiral channel extending along the length direction, which allows for the reservation of heat dissipation or wiring space inside the cable, thereby enhancing heat dissipation efficiency, and also allows for the installation of auxiliary wires such as monitoring lines as needed, adapting to the needs of multiple application scenarios. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a cable provided by this utility model; Figure 2 A schematic diagram of the overall structure of the conductive group in a cable provided by this utility model; Figure 3 A schematic diagram of the overall structure of the inner and outer sheath of a cable provided by this utility model; Figure 4 for Figure 3 A magnified view of part A in the diagram.

[0015] The following are the labeling elements in the figure: 1. Central conductor; 2. Conducting group; 201. Conductor; 202. Insulating layer; 3. Outer sheath; 4. Spiral channel; 5. Spacer bar; 6. Spiral metal woven mesh in the first direction; 7. Spiral metal woven mesh in the second direction. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0017] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0019] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0021] In one embodiment of this utility model, such as Figure 1-4 As shown, a cable is provided, comprising: a central assembly, conductive groups 2, an outer sheath 3, and a helical channel 4. The central assembly includes at least one central conductor 1 and / or a central reinforcing core. The conductive groups 2 are multiple groups arranged in a ring around the outer periphery of the central assembly, each group including at least two helically twisted conductors 201 wrapped by an insulation layer 202. The outer sheath 3 is fitted over all conductive groups 2. The helical channel 4 is formed in the outer sheath 3, and the helical direction of the helical channel 4 extends along the length of the outer sheath 3.

[0022] The cable provided by this utility model has multiple sets of conductive groups 2 distributed in a ring around the outer periphery of the central component. Each set of conductive groups 2 is wrapped with an insulation layer 202 to cover at least two spirally twisted conductors 201, which makes the cable conductive unit layout more regular and the insulation more reliable, thereby reducing signal interference between conductors 201 and improving the stability of current transmission. At the same time, the outer sheath 3 has a spiral channel 4 extending along the length direction, which allows for the reservation of heat dissipation or wiring space inside the cable, thereby enhancing heat dissipation efficiency. It can also be used to run auxiliary wires such as monitoring lines as needed, adapting to the needs of multiple application scenarios.

[0023] In high-temperature industrial environments (such as metallurgical and machining workshops), cables operate under high loads for extended periods, generating significant heat in the conductor group 2. By incorporating an axially extending spiral channel 4 within the outer sheath 3, the heat exchange area of ​​the inner wall of the outer sheath 3 is significantly increased, allowing heat to be more efficiently conducted through the channel wall to the solid portion of the outer sheath 3 and dissipated outwards. Furthermore, the channel structure provides a low-resistance annular path for the internal air, enabling localized thermal convection circulation under the influence of conductor heating, promoting the gradual release of heat along the spiral path. Compared to traditional fully solid enclosed structures, this design, by increasing the heat dissipation area and optimizing the heat conduction path, effectively prevents internal heat accumulation, significantly improving the cable's heat dissipation performance and operational reliability.

[0024] Compared to a straight cylindrical channel that runs continuously along the axial direction, which is prone to stress concentration during bending or compression, leading to cracking of the outer sheath 3 or channel collapse, the spiral channel 4 has a continuous curved distribution, resulting in more uniform load distribution and significantly improving the cable's mechanical strength and resistance to deformation. Moreover, the spiral structure gives the channel a longer actual path per unit length, which is equivalent to extending the residence and heat exchange time of hot air and enhancing local convection heat dissipation efficiency.

[0025] Furthermore, spacers 5 are provided within the spiral channel 4, and the spacers 5 are arranged in an array along the channel direction of the spiral channel 4. If the heat dissipation channel of a traditional cable is a hollow structure, it is prone to collapse during extrusion molding or external pressure, leading to failure of the heat dissipation function. By arranging the spacers 5 in an array within the spiral channel 4, multiple local support points are formed between the inner walls of the channel, thereby enhancing the mechanical stability of the channel structure and preventing it from closing due to pressure deformation during manufacturing or use.

[0026] Furthermore, the spacer 5 is made of a spiral strip. When the traditional straight spacer 5 is arranged in a straight line along the channel, stress concentration is easily generated during cable bending or torsion, leading to local deformation or breakage and affecting the integrity of the channel. By making the spacer 5 a spiral strip and extending it continuously along the spiral channel 4, the direction of the spacer 5 is matched with the overall force direction of the channel and the cable, thereby effectively dispersing bending and torsional loads and improving structural compliance.

[0027] Preferably, a first-direction spiral metal braided mesh 6 is provided between the outer side of all conductive groups 2 and the inner side of the outer sheath 3, and the first-direction spiral metal braided mesh 6 wraps around the outer periphery of all conductive groups 2. When traditional cables are frequently bent or dragged, the conductor groups are prone to relative displacement, leading to signal interference and structural loosening; moreover, they lack effective shielding and have poor electromagnetic compatibility. By providing a first-direction spiral metal braided mesh 6 around the outer periphery of all conductive groups 2, the conductive groups 2 are completely wrapped and uniformly constrained, thereby enhancing the cable's structural compactness and tensile strength; simultaneously, the metal braided mesh forms a continuous conductive shielding layer, effectively blocking external electromagnetic interference and suppressing internal signal crosstalk; thus improving the cable's transmission stability and anti-interference capability.

[0028] Furthermore, a second-direction spiral braided metal mesh 7 is provided on the outer side of the first-direction spiral metal braided mesh 6, and the spiral direction of the second-direction spiral metal braided mesh 7 is opposite to that of the first-direction spiral metal braided mesh 6. Generally, single-layer spiral braided mesh is prone to "unwinding" when the cable is repeatedly bent or twisted due to the same-direction spiral of the metal wires. By providing a second-direction spiral metal braided mesh 7 with an opposite spiral direction on the outer side of the first-direction spiral metal braided mesh 6, the spiral stress of the two braided meshes cancels each other out, thereby significantly improving the torsional stability of the overall structure and preventing the cable from spinning or twisting during dynamic use.

[0029] Furthermore, the second-direction spiral metal braided mesh 7 and the first-direction spiral metal braided mesh 6 are fixed at their braiding nodes by spot welding of metal wires. By spot welding the metal wires at the intersection nodes of the first and second-direction spiral metal braided meshes 7, the two layers of braided meshes form an electrically continuous and mechanically interlocked integral structure, thereby eliminating interlayer slippage and ensuring the stability of the electromagnetic shielding path and a low-resistance connection.

[0030] Preferably, the inner wall of the spiral channel 4 is coated with a wear-resistant coating, such as a polytetrafluoroethylene (PTFE) coating, which combines high wear resistance (extremely low surface friction coefficient, only 0.04) with excellent temperature resistance (long-term operating temperature -200℃~260℃), and has extremely strong chemical stability, not reacting with most acids, alkalis, and solvents. Traditional cable internal cavity structures are prone to wear or material degradation of the inner wall due to vibration, thermal expansion and contraction, or environmental corrosion during long-term use, causing channel deformation. By applying a wear-resistant coating to the inner wall of the spiral channel 4, the channel surface achieves higher hardness and chemical stability, preventing channel blockage caused by aging, peeling, or wear of the inner wall material; thus maintaining the long-term unobstructed flow and structural integrity of the spiral channel 4.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A cable, characterized in that, include: A central assembly, the central assembly comprising at least one central conductor and / or a central reinforcing core; The conductive group is a plurality of groups, which are arranged in a ring around the outer periphery of the central component. Each group of the conductive group includes at least two spirally twisted conductors wrapped in an insulating layer. An outer sheath, which is fitted over the outside of all the conductive groups; A spiral channel is formed in the outer sheath, and the spiral direction of the spiral channel extends along the length direction of the outer sheath.

2. The cable according to claim 1, characterized in that, The spiral channel is provided with spacers, which are arranged in an array along the channel direction of the spiral channel.

3. The cable according to claim 2, characterized in that, The spacer bar is made of a spiral bar.

4. A cable according to any one of claims 1-3, characterized in that, A first-direction spiral metal braided mesh is provided between the outer side of all the conductive groups and the inner side of the outer sheath, and the first-direction spiral metal braided mesh wraps around the outer periphery of all the conductive groups.

5. A cable according to claim 4, characterized in that, The outer side of the first direction spiral metal braided mesh is provided with a second direction spiral metal braided mesh, and the spiral direction of the second direction spiral metal braided mesh is opposite to the spiral direction of the first direction spiral metal braided mesh.

6. A cable according to claim 5, characterized in that, The second-direction spiral metal woven mesh is fixed to the first-direction spiral metal woven mesh at the weaving nodes by spot welding of metal wires.

7. A cable according to claim 1, 2, 3, 5, or 6, characterized in that, The inner wall of the spiral channel is provided with a wear-resistant coating to increase the integrity of the spiral channel.

Images