CN222354771U - Double-layer stranded type shielding layer wire breakage prevention combined cable - Google Patents
Double-layer stranded type shielding layer wire breakage prevention combined cable Download PDFInfo
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- CN222354771U CN222354771U CN202420880135.0U CN202420880135U CN222354771U CN 222354771 U CN222354771 U CN 222354771U CN 202420880135 U CN202420880135 U CN 202420880135U CN 222354771 U CN222354771 U CN 222354771U
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Abstract
本实用新型公开了一种双层绞合型防屏蔽层断线组合电缆，包括两个同轴线芯和两个尼龙树脂填充芯绞合形成内层线芯体且外部包覆有PTFE半定向带内绕包减摩层，四个动力线芯、两个控制线芯和四个尼龙树脂填充芯围绕PTFE半定向带内绕包减摩层外部绞合形成外层线芯体且外部依次包覆有PTFE半定向带外绕包减摩层、金属线混编总屏蔽层、TPU挤包内护套层、镀锌钢丝铠装层和TPU挤包外护套层。本组合电缆通过双层优化动力线芯、控制线芯和同轴线芯在缆芯中的组配结构，分双层绞合，抗弯曲性能更好，避免断丝断芯，优化分、总屏蔽层结构有利于抑制屏蔽层断线发生，保证稳定的屏蔽性能，耐用性更好。
The utility model discloses a double-layer twisted shielding layer breakage-proof combined cable, comprising two coaxial cores and two nylon resin-filled cores twisted to form an inner core body and coated with a PTFE semi-directional tape inner wrapped anti-friction layer on the outside, four power cores, two control cores and four nylon resin-filled cores twisted around the PTFE semi-directional tape inner wrapped anti-friction layer to form an outer core body and coated with a PTFE semi-directional tape outer wrapped anti-friction layer, a metal wire mixed braided total shielding layer, a TPU extruded inner sheath layer, a galvanized steel wire armor layer and a TPU extruded outer sheath layer in sequence on the outside. The combined cable optimizes the assembly structure of the power core, the control core and the coaxial core in the cable core through double-layer twisting, has better bending resistance, avoids wire and core breakage, and optimizes the structure of the divided and total shielding layers, which is conducive to suppressing the occurrence of shielding layer breakage, ensuring stable shielding performance and better durability.
Description
Technical Field
The application relates to the technical field of cables, in particular to a double-layer stranded type shielding layer wire breakage prevention combined cable.
Background
The control cable is used as a connecting wire between various electric appliances, instruments, meters and automatic devices, plays a role in transmitting various electric energy signals such as starting, operation, control, signal display, measurement and the like, and is widely applied to control, measurement, signal transmission, alarm and interlocking systems of industrial and mining enterprises, transformer stations, traffic, science and technology departments and the like. The electromagnetic noise environment of an industrial application site is often quite complex, and electromagnetic noise radiation or conduction (EMI) may severely interfere with the proper operation of the device. In this process, an important type of carrier for electromagnetic noise propagation is the various cables used in the production line equipment. Some of them are noise sources and some are disturbed objects. To combat electromagnetic noise interference on electrical lines, a very important way is to use cables with shielding. The multi-core cable with the sub-shielding and the total shielding is formed by twisting the coaxial wire core, the power wire core and the control wire core into a cable in the same layer, so that the outer diameter of the cable is larger, the miniaturization and microminiaturization development trend of the adapting equipment are not facilitated, the extension amount and the tensile resistance of each wire core are different, and the wire and the core are easy to break. Moreover, the shielding layer of shielding control line adopts copper line braiding shielding layer structure more, and copper line wire footpath is generally not more than 0.18mm, and after the cable underwent repeated crooked in the course of the work, the easy emergence divides, total shielding layer broken wire, causes shielding effect unstable, and the durability is relatively poor, brings the hidden danger for safety in production.
Disclosure of utility model
Aiming at the defects of the prior art, the application aims to provide the double-layer stranded shielding layer wire breakage prevention combined cable, the double-layer stranded power wire core, the control wire core and the coaxial wire core are assembled in the cable core through double layers, the double-layer stranded shielding layer wire breakage prevention combined cable has better bending resistance, the wire breakage and the wire breakage are avoided, the double-layer stranded shielding layer wire breakage prevention combined cable is beneficial to inhibiting the occurrence of shielding layer wire breakage through the double-layer stranded shielding layer wire breakage prevention combined cable, and the double-layer stranded shielding layer wire breakage prevention combined cable is stable in shielding performance and better in durability.
The application solves the technical problems through the following technical proposal.
The double-layer stranded shielding layer broken wire combined cable comprises two coaxial wire cores and two nylon resin filling core stranding layers, wherein an inner wire core body is formed by stranding two coaxial wire cores and two nylon resin filling core stranding layers, the inner wire core body is coated with a PTFE semi-directional in-band wrapping antifriction layer, four power wire cores, two control wire cores and four nylon resin filling core are wound around the outer wire core body formed by externally stranding the PTFE semi-directional in-band wrapping antifriction layer, the outer wire core body is sequentially coated with a PTFE semi-directional out-band wrapping antifriction layer, a metal wire mixed braiding total shielding layer, a TPU extruded inner sheath layer, a galvanized steel wire armor layer and a TPU extruded outer sheath layer, the coaxial wire cores comprise tin-plated copper monofilament conductors, foamed polyethylene insulating layers, shielding wire winding sub-shielding layers and PET resin coating layers, the control wire cores comprise two insulating wire cores twisted together and are twisted together with nylon fiber filling core materials to form a twisted wire core body, the outer twisted wire core body is sequentially coated with a twisted wire wrapping buffer layer and a metal wire mixed braiding shielding layer of a PTFE semi-directional full-aromatic copolyamide stretching fiber, and the metal wire mixed braiding total shielding layer and the metal wire mixed shielding layer are formed by the inner layer and the metal wire mixed shielding layer are all made of aluminum and the tinned wire and the outer layer is formed by the copper wire and the tinned wire and the copper wire.
Preferably, the wire diameter of the tinned copper wire is 1.1 to 1.3 times the wire diameter of the aluminum-magnesium wire.
Preferably, the PTFE semi-directional in-band wrapping antifriction layer and the PTFE semi-directional out-band wrapping antifriction layer are both of a PTFE semi-directional tape covering wrapping structure, the wrapping direction of the PTFE semi-directional in-band wrapping antifriction layer is opposite to the twisting direction of the inner layer wire core body, and the wrapping direction of the PTFE semi-directional out-band wrapping antifriction layer is opposite to the twisting direction of the outer layer wire core body.
Preferably, the power wire core comprises a power wire core conductor and a PFA insulating layer, wherein the power wire core conductor is formed by stranding a plurality of oxygen-free copper wires with the wire diameters of 0.04mm to 0.08mm, and the thickness of the PFA insulating layer is 0.5mm to 0.8mm.
Preferably, the shielding wire winding sub-shielding layer is a side-by-side spiral winding structure of a plurality of sub-shielding wires, each sub-shielding wire is composed of a silver-plated copper monofilament conductor and a polyurethane coating layer, the diameter of the silver-plated copper monofilament conductor is not smaller than one third of that of the tin-plated copper monofilament conductor and not exceeding that of the tin-plated copper monofilament conductor, the diameter of the silver-plated copper monofilament conductor is 0.1mm to 0.15mm, and the thickness of the polyurethane coating layer is 0.01mm to 0.05mm.
Preferably, the insulated wire core comprises an inner conductor and an XLPE insulation layer.
Preferably, the inner conductor is formed by twisting a plurality of tinned copper monofilaments with diameters of 0.02mm to 0.04 mm.
Preferably, the opposite type wholly aromatic copolyamide stretching fiber twisted wire wrapping buffer layer is formed by mutually reversely spirally wrapping double-layer opposite type wholly aromatic copolyamide stretching fiber twisted wires, and the braiding density is at least 90%, and the winding distance of the opposite type wholly aromatic copolyamide stretching fiber twisted wire is smaller than the twisting distance of a pair twisted wire core body.
Preferably, the shielding density of the metal wire hybrid shielding layer is smaller than the weaving density of the para-type wholly aromatic copolyamide drawn fiber twisted wire wrapped slow-pressing layer.
Preferably, the metal wire hybrid total shielding layer and the metal wire hybrid partial shielding layer are both coated with insulating lubricating silicone grease and have a shielding density of not less than 85%.
The application has the beneficial effects that:
1. Through optimizing cable core structure, put power core, control core and coaxial core separately and lay in two-layer and layering transposition, distinguish and arrange the three kinds of sinle silk that extension and tensile strength are respectively different in two-layer, each layer sinle silk hank is to unanimous, be favorable to improving bending resistance, the semi-directional in-band of PTFE is around the friction reducing layer of wrapping up outward and forms excellent slidability for produce the slip between the cable core inlayer, form and be similar to antifriction bearing effect, sliding friction resistance is little, improve bending resistance ability, be favorable to restraining sinle silk breaking, improve durability, reduce the safety in production hidden danger.
2. Through optimizing the shielding structure of metal wire mixed braiding, total shielding layer, replace original single copper wire or aluminium silk braided structure, adopt tinned copper wire and aluminium magnesium silk each other to be reverse spiral winding braided structure, tinned copper wire rigidity is strong, electric conductivity is better, the shielding layer of weaving formation is mutual for reverse spiral winding through tinned copper wire and aluminium magnesium silk, compromise pliability and rigidity, the wire diameter of the aluminium magnesium silk that is greater than the inlayer of tinned copper wire diameter that lies in the outer, it takes place the broken wire to be favorable to the cable to restrain the shielding layer when crooked, the lubricated silicone grease of shielding layer coating obtains antifriction effect, slow down tinned copper wire and aluminium magnesium silk friction, help reducing friction stress, restrain the broken wire, guarantee the stability of shielding property, the durability is better.
3. The shielding layers of the coaxial wire cores are spirally wound side by side, and the shielding wires are formed by silver-plated copper monofilament conductors and polyurethane coating layers, so that the silver-plated copper monofilament conductors cannot be directly contacted, friction wire breakage is restrained, contact current generated by the shielding layers is eliminated, long-distance signal transmission attenuation is restrained, stability of shielding effect is guaranteed, and electrical characteristics are better.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present application.
Reference numerals illustrate:
The cable comprises a 1-coaxial cable core, a 2-nylon resin filling core, a 3-PTFE semi-directional in-band wrapping antifriction layer, a 4-power cable core, a 5-control cable core, a 6-PTFE semi-directional out-band wrapping antifriction layer, a 7-metal wire mixed braiding total shielding layer, an 8-TPU extrusion inner sheath layer, a 9-galvanized steel wire armor layer, a 10-TPU extrusion outer sheath layer, an 11-tinned copper monofilament conductor, a 12-foamed polyethylene insulating layer, a 13-shielding wire winding sub-shielding layer, a 14-PET resin coating layer, a 15-insulating cable core, a 16-nylon fiber filling core, a 17-para-type wholly aromatic copolyamide stretching fiber twisted wire wrapping buffer layer, an 18-metal wire mixed braiding sub-shielding layer, a 19-power cable core conductor, a 20-PFA insulating layer, a 21-inner conductor and a 22-XLPE insulating layer.
Detailed Description
The terminology used in the description of the embodiments of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application, as will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the double-layer stranded shielding layer wire breakage prevention combined cable comprises two coaxial wire cores 1 and two nylon resin filling cores 2, wherein the coaxial wire cores 1 comprise tin-plated copper monofilament conductors 11, a foamed polyethylene insulating layer 12, shielding wire winding shielding layers 13 and a PET resin coating layer 14. In one embodiment, the shielding wire winding sub-shielding layer 13 is a side-by-side spiral winding structure of a plurality of sub-shielding wires, the sub-shielding wires are composed of silver-plated copper monofilament conductors and polyurethane coating layers, the diameter of the silver-plated copper monofilament conductors is not smaller than one third of the diameter of the tin-plated copper monofilament conductors 11 and not exceeding the diameter of the tin-plated copper monofilament conductors 11, the diameter of the silver-plated copper monofilament conductors is 0.1mm to 0.15mm, and the thickness of the polyurethane coating layers is 0.01mm to 0.05mm.
And the outer part of the inner layer wire core is coated with a PTFE semi-oriented in-band wrapping antifriction layer 3. The four power wire cores 4, the two control wire cores 5 and the four nylon resin filling cores 2 are twisted outside the PTFE semi-directional band inner wrapping antifriction layer 3 to form an outer wire core body. The control wire core 5 comprises two insulating wire cores 15 twisted in pairs and twisted together with a nylon fiber filling core 16 to form a twisted wire core body, specifically, the insulating wire cores 15 comprise an inner conductor 21 and an XLPE insulating layer 22, and further, the inner conductor 21 is formed by twisting a plurality of tin-plated copper monofilaments with diameters of 0.02mm to 0.04 mm. In one embodiment, the power wire core 4 comprises a power wire core conductor 19 and a PFA insulating layer 20, the power wire core conductor 19 is formed by twisting a plurality of oxygen-free copper wires with the wire diameters of 0.04mm to 0.08mm, and the thickness of the PFA insulating layer 20 is 0.5mm to 0.8mm. The pair twisted wire core body is sequentially coated with a pair-type wholly aromatic copolyamide stretching fiber twisted wire wrapping buffer layer 17 and a metal wire mixed-braiding shielding layer 18. In one embodiment, the twisted pair type wholly aromatic copolyamide drawn fiber lay-up buffer layer 17 is formed by two layers of twisted pair type wholly aromatic copolyamide drawn fiber strands which are mutually in reverse spiral lay-up and have a braiding density of at least 90%, the twisted pair type wholly aromatic copolyamide drawn fiber lay-up is smaller than the twisted pair core lay-up, and further, the shielding density of the metal wire hybrid shielding layer 18 is smaller than the braiding density of the twisted pair type wholly aromatic copolyamide drawn fiber lay-up buffer layer 17.
The outer core body is sequentially coated with a PTFE semi-oriented out-of-band wrapped antifriction layer 6, a metal wire mixed braiding total shielding layer 7, a TPU extruded inner sheath layer 8, a galvanized steel wire armor layer 9 and a TPU extruded outer sheath layer 10. The metal wire mixed-braiding total shielding layer 7 and the metal wire mixed-braiding partial shielding layer 18 are formed by mutually reversely spirally winding an inner aluminum magnesium wire and an outer tinned copper wire, the wire diameter of the tinned copper wire is larger than that of the aluminum magnesium wire, and further, the wire diameter of the tinned copper wire is 1.1 to 1.3 times that of the aluminum magnesium wire. The metal wire mixed-braiding total shielding layer 7 and the metal wire mixed-braiding partial shielding layer 18 are both coated with insulating lubricating silicone grease, and the shielding density is not less than 85%. In one embodiment, the PTFE semi-directional tape inner wrapping antifriction layer 3 and the PTFE semi-directional tape outer wrapping antifriction layer 6 are both of a PTFE semi-directional tape overlapping wrapping structure, the wrapping direction of the PTFE semi-directional tape inner wrapping antifriction layer 3 is opposite to the inner layer wire core body, and the wrapping direction of the PTFE semi-directional tape outer wrapping antifriction layer 6 is opposite to the outer layer wire core body.
It should be noted that the foregoing embodiments are merely illustrative embodiments of the present application, and not restrictive, and the scope of the application is not limited to the embodiments, and although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any modification, variation or substitution of some of the technical features of the embodiments described in the foregoing embodiments may be easily contemplated within the scope of the present application, and the spirit and scope of the technical solutions of the embodiments do not depart from the spirit and scope of the embodiments of the present application.
Claims (10)
1. The double-layer stranded shielding layer broken wire combined cable is characterized by comprising two coaxial wire cores (1) and two nylon resin filled cores (2), wherein the two coaxial wire cores (1) and the two nylon resin filled cores (2) are stranded to form an inner wire core body, the outer parts of the inner wire cores are coated with PTFE semi-oriented in-band wrapping antifriction layers (3), four power wire cores (4), two control wire cores (5) and four nylon resin filled cores (2) surround the PTFE semi-oriented in-band wrapping antifriction layers (3) to form an outer wire core body, the outer parts of the outer wire cores are sequentially coated with PTFE semi-oriented out-of-band wrapping antifriction layers (6), a metal wire mixed-braiding total shielding layer (7), a TPU extruded inner sheath layer (8), a galvanized steel wire armor layer (9) and a TPU extruded outer sheath layer (10), the coaxial wire cores (1) comprise a tinned copper monofilament conductor (11), a foamed polyethylene insulation layer (12), a shielding wire wrapping sub-shielding layer (13) and a PET resin wrapping layer (14), the control wire cores (5) comprise two insulation wire cores (15) which are twisted and are in mutual butt-joint with nylon fiber filled with nylon fibers to form an outer wire core body, the twisted wire core body is fully-twisted with a fully-twisted wire mixed-braiding aromatic mixed-braiding layer (17), the metal wire mixed braiding total shielding layer (7) and the metal wire mixed braiding partial shielding layer (18) are formed by mutually and reversely spirally winding an inner aluminum magnesium wire and an outer tinned copper wire, and the wire diameter of the tinned copper wire is larger than that of the aluminum magnesium wire.
2. The double stranded shielding layer wire breakage preventing composite cable according to claim 1, wherein the wire diameter of the tinned copper wire is 1.1 to 1.3 times that of the aluminum magnesium wire.
3. The double-stranded shielding layer wire breakage prevention combined cable according to claim 1, wherein the PTFE semi-oriented in-band wrapping antifriction layer (3) and the PTFE semi-oriented out-of-band wrapping antifriction layer (6) are of PTFE semi-oriented tape lapping and wrapping structures, the winding direction of the PTFE semi-oriented in-band wrapping antifriction layer (3) is opposite to the winding direction of the inner layer wire core body, and the winding direction of the PTFE semi-oriented out-of-band wrapping antifriction layer (6) is opposite to the winding direction of the outer layer wire core body.
4. The double-layer stranded shielding layer wire breakage preventing combined cable according to claim 1, wherein the power wire core (4) comprises a power wire core conductor (19) and a PFA insulating layer (20), the power wire core conductor (19) is formed by stranding a plurality of oxygen-free copper wires with the wire diameters of 0.04mm to 0.08mm, and the thickness of the PFA insulating layer (20) is 0.5mm to 0.8mm.
5. The double-stranded shielding layer wire breakage preventing combined cable according to claim 1, wherein the shielding wire winding sub-shielding layer (13) is of a parallel spiral winding structure of a plurality of sub-shielding wires, each sub-shielding wire is composed of a silver-plated copper monofilament conductor and a polyurethane coating layer, the diameter of the silver-plated copper monofilament conductor is not smaller than one third of the diameter of the tin-plated copper monofilament conductor (11) and not exceeding the diameter of the tin-plated copper monofilament conductor (11), the diameter of the silver-plated copper monofilament conductor is 0.1mm to 0.15mm, and the thickness of the polyurethane coating layer is 0.01mm to 0.05mm.
6. The double-stranded shielding layer wire-break combined cable according to claim 1, wherein the insulated wire core (15) comprises an inner conductor (21) and an XLPE insulation layer (22).
7. The double-stranded shielding layer wire breakage preventing combined cable according to claim 6, wherein the inner conductor (21) is formed by stranding a plurality of tin-plated copper monofilaments with diameters of 0.02mm to 0.04 mm.
8. The double-layer stranded type shielding layer wire breakage prevention combined cable according to claim 1, wherein the opposite type wholly aromatic copolyamide stretched fiber twisted wire wrapping buffer layer (17) is formed by mutually reversely spirally wrapping double-layer opposite type wholly aromatic copolyamide stretched fiber twisted wires, the weaving density is at least 90%, and the winding distance of the opposite type wholly aromatic copolyamide stretched fiber twisted wire is smaller than the winding distance of a pair-twisted wire core body.
9. The double-stranded shielding layer wire breakage preventing combined cable according to claim 8, wherein the shielding density of the metal wire hybrid-knitted shielding layer (18) is smaller than the knitting density of the para-type wholly aromatic copolyamide drawn fiber twisted wire wrapped slow-pressing layer (17).
10. The double-stranded shielding layer wire breakage preventing combined cable according to claim 1, wherein the metal wire mixed-braiding total shielding layer (7) and the metal wire mixed-braiding shielding layer (18) are both coated with insulating lubricating silicone grease, and the shielding density is not less than 85%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202420880135.0U CN222354771U (en) | 2024-04-26 | 2024-04-26 | Double-layer stranded type shielding layer wire breakage prevention combined cable |
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| CN202420880135.0U CN222354771U (en) | 2024-04-26 | 2024-04-26 | Double-layer stranded type shielding layer wire breakage prevention combined cable |
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| CN222354771U true CN222354771U (en) | 2025-01-14 |
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| CN202420880135.0U Active CN222354771U (en) | 2024-04-26 | 2024-04-26 | Double-layer stranded type shielding layer wire breakage prevention combined cable |
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