CN216597108U - Large-current-carrying-capacity high-shielding special control cable - Google Patents
Large-current-carrying-capacity high-shielding special control cable Download PDFInfo
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- CN216597108U CN216597108U CN202123145965.4U CN202123145965U CN216597108U CN 216597108 U CN216597108 U CN 216597108U CN 202123145965 U CN202123145965 U CN 202123145965U CN 216597108 U CN216597108 U CN 216597108U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The utility model discloses a high-current-carrying-capacity high-shielding special control cable which comprises a middle cable core, an isolation layer, shielding layers II and III and a sheath layer, wherein the isolation layer, the shielding layers II and III and the sheath layer are coated on the middle cable core, the middle cable core is formed by twisting a plurality of cable cores I, the cable cores I are formed by twisting a plurality of wires, the wires are provided with insulating layers, the insulating layers are formed by wrapping and sintering polyimide/polytetrafluoroethylene composite films and polytetrafluoroethylene raw material belts, and the isolation layer, the shielding layers II and III and the sheath layer are sequentially coated outside the middle cable core. The current-carrying capacity of the conductor is large, the conductor is stranded by silver-plated multi-cores, and the insulating layer is wrapped by the polyimide/polytetrafluoroethylene composite film and the polytetrafluoroethylene raw material tape, so that the current-carrying capacity of the conductor is greatly improved; the shielding performance is good, the polyimide/aluminum foil composite tape is adopted for wrapping and shielding outside the lead, the mutual crosstalk between cable cores is greatly reduced, the polyimide/aluminum foil composite tape wrapping and shielding and silver-plated copper flat tape braided and shielded combined shielding are used outside the whole cable core, and the shielding performance of the cable is improved.
Description
Technical Field
The utility model relates to the field of cables, in particular to a special control cable with high carrying capacity and high shielding capacity.
Background
At present, with the rapid development of the current information transmission technology, the transmission rate of a wiring system is steadily accelerated and simultaneously certain interference vulnerability is brought, the higher the frequency of the transmitted information is, the increased signal sensitivity is, and simultaneously, the weaker the energy of the transmitted information is, the easier the interference is, and in addition, the constraint of the wiring space in the wiring system leads to the fact that the sectional area of a lead cannot be increased to meet the requirement of large current-carrying capacity.
The prior art discloses a power cable (publication number CN 109448894A) with high shielding, high insulating property and high shock resistance, wherein a guide core is arranged inside a support ring, a third insulating layer is arranged between the guide core and the support ring, a support fork is adapted to support and connect a cable core, the cable core is provided with a colored belt layer, a third shielding layer, a second insulating layer and a second shielding layer from inside to outside in sequence around the cable core, the colored belt layer is formed by respectively coating pigments with different colors mixed by ethylene-tetrafluoroethylene copolymer on the surface of each cable core, and a filling layer is filled between the cable core and the support frame. The utility model provides a can improve cable strength, guarantee the shielding effect and the insulating effect of cable, improve cable anti-seismic performance, make things convenient for the workman to distinguish the power cable of the high shielding of cable core, high insulating nature, high shock resistance, through cladding shielding layer two on the cable core, insulating layer two, shielding layer three, and increase the insulating layer, the thickness of shielding layer, set up insulating layer three outside the cable core, strengthen whole insulation shielding effect, but the compliance of cable has been reduced, when the workman arranges the cable, when needs buckle and prevent the cable, influence operating efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a special control cable with high current-carrying capacity and excellent shielding performance.
The technical scheme adopted by the utility model is as follows:
the utility model provides a big current-carrying capacity high shield special type control cable, includes middle part cable core and cladding in the isolated layer of middle part cable core, shielding layer II, shielding layer III, restrictive coating, the middle part cable core is formed by I transposition of many cable cores, and cable core I is formed by many wire transposition, and the wire is equipped with the insulating layer, and the insulating layer is formed around the package sintering by polyimide polytetrafluoroethylene complex film and polytetrafluoroethylene raw material area, isolated layer, shielding layer II, shielding layer III, restrictive coating are wrapped in proper order outward to the middle part cable core.
Furthermore, wire I, wire II transposition each other in cable core I, outside cladding shielding layer I, shielding layer I is formed by polyimide/aluminium foil composite tape around the package, forms the combination shielding, effectively improves the shielding performance of cable.
Furthermore, the conductors in the wires are silver-plated copper stranded wires, the conductors are formed by twisting 19 core wires, the wire diameter of each core wire is phi 0.203, and the conductors are coated with insulating layers. The conductor is a multi-core conductor, so that the heat dissipation is good, the service resistance is good, and the current-carrying capacity is larger than that of a single conductor.
Further, the outer diameter of the wire is 1.30-1.40 mm.
Further, cable core I sets up four, and four cable cores I transposition of each other constitute the cable core, and the cable core outside cladding isolation layer, isolation layer are formed by the non-woven fabrics around the package.
Furthermore, the shielding layer II is formed by wrapping a polyimide/aluminum foil composite tape, the shielding layer III is formed by weaving a silver-plated copper flat tape, the weaving density is more than 90%, and the sheath layer is formed by fusing and extruding fluorinated ethylene propylene resin.
The utility model has the beneficial effects that: 1. the current-carrying capacity is large, the insulating layer of the conductor is wrapped by adopting a polyimide/polytetrafluoroethylene composite film and a polytetrafluoroethylene raw material belt, the temperature resistance grade is high, the mechanical strength is high, the damage to the insulating layer caused by overhigh temperature of the lead can be met, and the current-carrying capacity of the lead is greatly improved;
2. the shielding performance is good, the polyimide/aluminum foil composite tape is adopted for wrapping and shielding outside the lead, the aluminum foil shielding can cover the cable by 100 percent, the mutual crosstalk between cable cores is greatly reduced, and the cable is small in size, light in weight and low in price;
3. the conductors in the lead are multi-core conductors, so that the heat dissipation is good, the anti-creep property is good, the current-carrying capacity is larger than that of a single conductor, and the outer surface of the lead is plated with silver, so that the conductivity is increased, and the current-carrying capacity is increased;
4. the combined shielding of polyimide/aluminum foil composite tape lapping shielding and silver-plated copper flat tape weaving shielding is adopted outside the whole cable core, the weaving density of the shielding layer III is more than 90%, the weaving shielding has lower critical resistance and is most effective in resisting electromagnetic interference, the aluminum foil shielding is most effective in resisting radio frequency interference, and the combination of the polyimide/aluminum foil composite tape lapping shielding and the silver-plated copper flat tape weaving shielding can effectively face a high-low frequency mixed interference field and effectively improve the shielding performance of the cable.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of the present invention.
Wherein: 1. a cable core I; 2. a shielding layer I; 3. an insulating layer; 4. a shielding layer II; 5. a shielding layer III; 6. a sheath layer; 7. a lead I; 8. a lead II; 9. an insulating layer.
Detailed Description
As shown in figure 1, a big current-carrying capacity high shielding special control cable, including middle part cable core and the isolated layer 3 of cladding in the middle part cable core, shielding layer II 4, shielding layer III 5, the restrictive coating 6, the middle part cable core is formed by the transposition of many cable cores I1, cable core I1 is formed by many wires transposition, the wire is equipped with insulating layer 9, insulating layer 9 is formed by polyimide polytetrafluoroethylene complex film and polytetrafluoroethylene raw material area around the package sintering, middle part cable core cladding isolated layer 3 outward in proper order, shielding layer II 4, shielding layer III 5, restrictive coating 6. The conductor adopts silver-plated multicore transposition and the insulating layer adopts polyimide/polytetrafluoroethylene complex film and polytetrafluoroethylene raw material area to carry out the package, and its temperature resistant grade is high, mechanical strength is high, can satisfy the destruction that the wire high temperature brought for the insulating layer, has promoted the current-carrying capacity of wire greatly.
Wire I7, wire II 8 transposition each other in cable core I1, outside cladding shielding layer I2, shielding layer I2 is formed by polyimide/aluminium foil composite tape around the package. The conductor in the wire is a silver-plated copper stranded wire and is formed by twisting 19 core wires, the wire diameter of each core wire is phi 0.203, and the conductor is coated with an insulating layer 9. The outer diameter of the wire is 1.30-1.40 mm. The cable has good shielding performance, the outside of the lead adopts polyimide/aluminum foil composite tape for wrapping shielding, the aluminum foil shielding can cover the cable by 100 percent, the mutual crosstalk between cable cores is greatly reduced, and the cable has small volume, light weight and low price; the conductors in the lead are multi-core conductors, so that the heat dissipation is good, the anti-creep property is good, the current-carrying capacity is larger than that of a single conductor, and the outer surface of the lead is plated with silver, so that the conductivity is increased, and the current-carrying capacity is increased.
Cable core I1 sets up four, and cable core is constituteed in the transposition of four cable core I1 each other, and the cable core outside cladding isolation layer 3, isolation layer 3 is formed by the non-woven fabrics around the package. The shielding layer II 4 is formed by wrapping a polyimide/aluminum foil composite tape, the shielding layer III 5 is formed by weaving a silver-plated copper flat tape, and the sheath layer 6 is formed by melting and extruding a perfluorinated ethylene propylene copolymer resin. The combined shielding of polyimide/aluminum foil composite tape lapping shielding and silver-plated copper flat tape weaving shielding is adopted outside the whole cable core, the weaving density of the shielding layer III 5 is more than 90%, the weaving shielding has lower critical resistance and is most effective in resisting electromagnetic interference, the aluminum foil shielding is most effective in resisting radio frequency interference, and the combination of the polyimide/aluminum foil composite tape lapping shielding and the silver-plated copper flat tape weaving shielding can effectively face a high-low frequency mixed interference field and effectively improve the shielding performance of the cable. The temperature resistant grade of the sheath layer 6 can reach 200 ℃. The flame-retardant material not only can meet the requirement of high temperature resistance, but also can be a flame-retardant material, and ensures the fire resistance and the flame retardance of the product.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should be included in the protection scope defined by the claims of the present invention.
Claims (6)
1. The utility model provides a special control cable is shielded to big current-carrying capacity height, includes middle part cable core and the isolated layer, shielding layer II, shielding layer III, the restrictive coating of cladding in the middle part cable core, its characterized in that: the middle part cable core is formed by I transposition of many cable cores, and cable core I is formed by many wire transposition, and the wire is equipped with the insulating layer, and the insulating layer is formed around the package sintering by polyimide polytetrafluoroethylene complex film and polytetrafluoroethylene raw material area, middle part cable core cladding isolated layer, shielding layer II, shielding layer III, restrictive coating outward in proper order.
2. The high-carrying-capacity high-shielding special control cable according to claim 1, wherein: wire I, wire II transposition each other in the cable core I, outside cladding shielding layer I, shielding layer I is formed by polyimide/aluminium foil composite tape around the package.
3. The high-current-carrying-capacity high-shielding special control cable according to claim 1, wherein: the conductor in the lead is a silver-plated copper stranded wire and is formed by twisting 19 core wires, the wire diameter of each core wire is phi 0.203, and an insulating layer is coated outside the conductor.
4. The high-carrying-capacity high-shielding special control cable according to claim 1, wherein: the outer diameter of the lead is 1.30-1.40 mm.
5. The high-current-carrying-capacity high-shielding special control cable according to claim 1, wherein: cable core I sets up four, and four cable core I transposition of each other constitute the cable core, and the cable core outside cladding isolation layer, isolation layer are formed by the non-woven fabrics around the package.
6. The high-carrying-capacity high-shielding special control cable according to claim 1, wherein: the shielding layer II is formed by wrapping a polyimide/aluminum foil composite tape, the shielding layer III is formed by weaving a silver-plated copper flat tape, and the sheath layer is formed by melting and extruding a perfluorinated ethylene propylene copolymer resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123145965.4U CN216597108U (en) | 2021-12-15 | 2021-12-15 | Large-current-carrying-capacity high-shielding special control cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123145965.4U CN216597108U (en) | 2021-12-15 | 2021-12-15 | Large-current-carrying-capacity high-shielding special control cable |
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| CN216597108U true CN216597108U (en) | 2022-05-24 |
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| CN202123145965.4U Active CN216597108U (en) | 2021-12-15 | 2021-12-15 | Large-current-carrying-capacity high-shielding special control cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116884698A (en) * | 2023-07-11 | 2023-10-13 | 广东万东伟业电线电缆有限公司 | Network cable for monitoring equipment and preparation process thereof |
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2021
- 2021-12-15 CN CN202123145965.4U patent/CN216597108U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116884698A (en) * | 2023-07-11 | 2023-10-13 | 广东万东伟业电线电缆有限公司 | Network cable for monitoring equipment and preparation process thereof |
| CN116884698B (en) * | 2023-07-11 | 2024-01-19 | 广东万东伟业电线电缆有限公司 | Network cable for monitoring equipment and preparation process thereof |
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