CN213844790U - Ultra-light anti-interference multi-core shielding control cable - Google Patents
Ultra-light anti-interference multi-core shielding control cable Download PDFInfo
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- CN213844790U CN213844790U CN202022667952.2U CN202022667952U CN213844790U CN 213844790 U CN213844790 U CN 213844790U CN 202022667952 U CN202022667952 U CN 202022667952U CN 213844790 U CN213844790 U CN 213844790U
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Abstract
The utility model provides an ultra-light anti-interference multicore shielding control cable, including cable core, double-shielded layer and restrictive coating, double-shielded layer is indulged the polyester aluminium composite belt shielding layer that wraps formation outside the cable core and is woven in the outer copper clad almag alloy silk braided shield layer of polyester aluminium composite belt shielding layer by polyester aluminium composite belt, the outer cladding restrictive coating of copper clad almag alloy silk braided shield layer, the restrictive coating is fire-retardant thermoplastic elastomer restrictive coating. The utility model discloses a this control cable has characteristics such as light in weight, compliance are good, electrical properties is excellent, interference immunity is strong, mechanical properties is good, resistant high low temperature environmental suitability is strong.
Description
Technical Field
The utility model relates to a control cable technical field especially relates to an ultra-light anti-interference multicore shielding control cable.
Background
With the increasing application of special cables in new energy sources such as solar energy and wind energy, electric automobiles, rolling stocks, rail transit and various equipment, higher requirements are provided for the technical level of the cables, and the cables are required to have light weight, excellent mechanical performance, good flexibility and high cost performance while ensuring the electrical performance, so that the cables are correspondingly researched and designed to meet the actual production requirements.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at solves the problem that exists among the prior art, provides an ultra-light anti-interference multicore shielding control cable that has characteristics such as light in weight, compliance are good, electrical properties is excellent, interference immunity is strong, mechanical properties is good, resistant high low temperature environment strong adaptability.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides an ultra-light anti-interference multicore shielding control cable, wherein ultra-light anti-interference multicore shielding control cable includes cable core, double screen and restrictive coating, double screen is indulged the polyester aluminium composite tape shielding layer that forms outside the cable core by the polyester aluminium composite tape and is woven in the outer copper clad almag alloy silk braided shield layer of polyester aluminium composite tape shielding layer and forms, the outer cladding restrictive coating of copper clad almag alloy silk braided shield layer, the restrictive coating is fire-retardant thermoplastic elastomer restrictive coating.
The control cable structure formed by sequentially arranging the polyester aluminum composite belt shielding layer, the copper-clad aluminum-magnesium alloy wire braided shielding layer and the flame-retardant thermoplastic elastomer sheath layer outside the cable core reduces the weight of the control cable, and has the characteristics of strong anti-interference performance, low cost, good mechanical performance, strong high and low temperature environment resistance and strong adaptability and the like.
Furthermore, the cable core is formed by stranding a plurality of strands of insulated wire cores through a cabling process.
Wherein, stranded insulation core transposition forms the cable core, makes it difficult loose, and the subsequent handling operation of being convenient for, has guaranteed control cable stable in structure when laying, in addition, for filling the space between the insulation core, guarantees the cabling rounding, and convenient follow-up processing also can fill PP rope (the netted membrane of tearing of polypropylene) between insulation core, and PP rope is with low costs and light in weight.
Furthermore, the insulating wire core is a stranded aluminum alloy conductor coated with an insulating layer.
The insulation wire core is made of a stranded aluminum alloy conductor, and the rated current of the section of the same conductor is 5% higher than that of a copper conductor, so that the control cable is excellent in electrical performance.
Furthermore, the stranded aluminum alloy conductor adopts six types of stranded aluminum alloy conductors, and the density of the stranded aluminum alloy conductors is 2.9g/mm3。
Wherein, six types of stranded aluminum alloy conductors are adopted, and the density of the conductors is 2.9g/mm3The weight of the conductor with the same section is reduced by 68% compared with the copper conductor, so that the weight of the cable core forming the control cable is further effectively reduced, the overall weight of the control cable is light, and meanwhile, the six types of stranded aluminum alloy conductors are softer, so that the manufactured control cable product is good in flexibility.
Further, the diameter range of the aluminum alloy wires in the stranded aluminum alloy conductor is 0.2 mm-0.3 mm.
Furthermore, the stranding pitch diameter ratio of the multiple insulated wire cores and the stranding pitch diameter ratio of the stranded aluminum alloy conductor in each insulated wire core are both 13-15.
In order to ensure the flexibility and the tightness of the control cable and improve the production efficiency of the control cable, the ratio of the twisted pitch diameter of the multi-strand insulating wire core and the ratio of the twisted pitch diameter of the twisted aluminum alloy conductor in the multi-strand insulating wire core are controlled within the range of 13-15.
Furthermore, the insulating layer is an ethylene propylene diene monomer thermoplastic elastomer insulating layer.
Compared with an insulating layer formed by adopting polyvinyl chloride, the insulating layer is made of the ethylene propylene diene monomer thermoplastic elastomer, has higher temperature resistance level and mechanical strength, is low in density, is suitable for thin layer processing, can meet the processing process requirement of the thinnest thickness of 0.2mm, has excellent electric properties such as breakdown field strength (dielectric strength of dielectric medium) and insulation resistance, the highest breakdown voltage can reach more than 5000V, the insulation resistance can reach 1500 MOmega and km, the insulation temperature rise can reach 120 ℃ at most, the current-carrying capacity of the conductor with the same section by adopting the insulation is improved by 45 percent and is 5 percent higher than that of a copper conductor, so that the control cable has good mechanical property and excellent electrical property.
Further, the insulating layer is formed by extruding and coating the PVC extruder outside the stranded aluminum alloy conductor.
The coating of the EPDM rubber thermoplastic elastomer insulating layer on the stranded aluminum alloy conductor can be finished by adopting the conventional common PVC extruder, special equipment is not needed, the production mode is simple, and the cost is low.
Further, when the cable core has a small cross-sectional area, regular twisting with 1+6 or 1+6+12 (i.e. 7 or 19 regular twisting) is adopted, and when the cable core has a large cross-sectional area, a regular twisting and complex twisting structure is adopted.
Wherein, the product specification is small (for example, 1.5 mm)2、2.5mm2Control cable of (2), structural stability is more important, and thus a regular twisted structure of 1+6 or 1+6+12 is employed, while a large-sized product (e.g., 10 mm)2Control cable) having a strand (i.e. insulated wire core) area substantially equal to 1.5mm2The stranded wires (namely the insulated wire cores) are in a regular stranding structure (1+6+12), and the 7 stranded wires are secondarily stranded into a structure with the thickness of 10mm2. This process is known as regular twist plus compound twist. The multiple twisting form is not limited, but may be 3 strands, 7 strands, 9 strands, 15 strands, etc.
Further, the thickness of the polyester aluminum composite belt in the polyester aluminum composite belt shielding layer is 0.08 mm.
Wherein, because the shielding structure in this application is two shielding layer forms, so the thickness of polyester aluminium composite strip can reduce, sets for this numerical value, can satisfy production and actual shielding performance requirement.
Furthermore, the copper-clad aluminum magnesium alloy wires in the copper-clad aluminum magnesium alloy braided shielding layer are CCAM-10A series.
Wherein, the CCAM-10A series is selected as the copper-clad aluminum-magnesium alloy wire, so that the flexibility of the control cable can be ensured.
Furthermore, the outer diameter range of the copper-clad aluminum magnesium alloy wire in the copper-clad aluminum magnesium alloy wire braided shielding layer is 0.10 mm-0.287 mm.
Further, the density of the copper-clad aluminum-magnesium alloy wires in the copper-clad aluminum-magnesium alloy wire braided shielding layer is 3.45g/mm3And the weaving density of the copper-clad aluminum-magnesium alloy wire braided shielding layer is more than 85 percent.
The polyester aluminum composite belt and the copper-clad aluminum-magnesium alloy wires are both light shielding materials, and the combined shielding layer formed by longitudinally wrapping the polyester aluminum composite belt and weaving the copper-clad aluminum-magnesium alloy wires is a combined structure of various metals, so that the shielding performance is more excellent in electromagnetic interference resistance, the shielding performance of the shielding layer is more than one time of that of a single-layer copper wire, and the shielding performance is improved by 20% compared with the combined shielding layer formed by weaving the polyester aluminum composite belt and the copper wires, and in addition, the weight of the shielding layer formed by adopting the shielding layer is reduced by 60% compared with that of the single-layer copper wire shielding layer.
Furthermore, the sheath layer is formed by extruding and coating the PVC extruder outside the copper-clad aluminum-magnesium alloy wire braided shielding layer.
The flame-retardant thermoplastic elastomer has the advantages of low density which is only 80 percent of that of a PVC material, good mechanical property, good flexibility, tensile strength which can reach 18MPa, hardness which can reach 70 Shore A, thinnest processing thickness which can reach 0.5mm, low smoke, no halogen, flame retardance, various reagent resistance and severe environment requirements, the maximum use temperature range which can reach-55 ℃ to +125 ℃, in addition, the coating of the flame-retardant thermoplastic elastomer sheath layer on the copper-clad aluminum magnesium alloy wire braided shielding layer can be completed by adopting the existing common PVC extruder, no special equipment is needed, the production mode is simple and convenient, and the cost is low.
The utility model has the advantages and positive effects that:
(1) because the insulated wire core adopts the stranded aluminum alloy conductor, the weight of the conductor is reduced by 68 percent under the condition of the direct current resistance same as that of the copper conductor, and the flexible cable has excellent flexible bending performance.
(2) The insulating layer adopts an ethylene propylene diene monomer rubber heat-shrinkable elastomer with the density of only 0.9g/mm3The high-insulation-resistance material enables the insulation resistance of the control cable to reach 1500 MOmega.km, has good mechanical property, elongation at break of more than 200 percent and tensile strength of 18MPa, has excellent flexibility, can meet the requirement of 3 times of the bending of the outer diameter of the control cable, and can be used for a long time at the ambient temperature of between 55 ℃ below zero and 125 ℃.
(3) The shielding layer formed by weaving and combining the polyester aluminum composite belt and the copper-clad aluminum-magnesium alloy wire has low density of shielding materials, strong electromagnetic interference resistance of combined shielding and shielding effectiveness of more than 80dB, so that the control cable is suitable for being applied under the condition of high-strength electromagnetic environment.
(4) The sheath layer is made of high-performance flame-retardant heat-shrinkable elastomer with the material density of only 1.05g/mm3Has good flexibility and mechanical property, and can be used for a long time at the ambient temperature of between 55 ℃ below zero and 125 ℃.
(5) Through material selection and structure optimization, the control cable can transmit the same rated current, and the weight of the control cable is reduced by 60 percent compared with that of the polyvinyl chloride insulated multi-core control shielding cable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the cable comprises an insulating wire core 1, an insulating layer 2, a double-shielding layer 3, a polyester aluminum composite tape shielding layer 31, a copper-clad aluminum-magnesium alloy wire braided shielding layer 32 and a sheath layer 4.
Detailed Description
For a better understanding of the present invention, the following further description is given in conjunction with the following embodiments and accompanying drawings.
Example one
As shown in fig. 1, an ultra-light anti-interference multi-core shielding control cable comprises a cable core, a double shielding layer 3 and a sheath layer 4, wherein the double shielding layer 3 is formed by a polyester aluminum composite tape shielding layer 31 formed by longitudinally wrapping a polyester aluminum composite tape outside the cable core and a copper-clad aluminum magnesium alloy wire braided shielding layer 32 braided outside the polyester aluminum composite tape shielding layer 31, the sheath layer 4 is wrapped outside the copper-clad aluminum magnesium alloy wire braided shielding layer 32, and the sheath layer 4 is a flame-retardant thermoplastic elastomer sheath layer.
Example two
As shown in fig. 1, the difference from the first embodiment is that, further, the cable core is formed by stranding a plurality of insulated wire cores 1 through a cabling process.
Further, the insulated wire core 1 is a stranded aluminum alloy conductor coated with the insulating layer 2.
Furthermore, the stranded aluminum alloy conductor adopts six types of stranded aluminum alloy conductors, and the density of the stranded aluminum alloy conductors is 2.9g/mm3。
Further, the diameter range of the aluminum alloy wires in the stranded aluminum alloy conductor is 0.2 mm-0.3 mm.
Furthermore, the ratio of the twisting pitch diameter of the multiple insulated wire cores 1 and the ratio of the twisting pitch diameter of the aluminum alloy conductor in each insulated wire core 1 are both 13-15.
Further, when the cable core has a small cross-sectional area, regular twisting (i.e., 7 or 19 regular twisting) of 1+6 or 1+6+12 is adopted, and when the cable core has a large cross-sectional area, a regular twisting and complex twisting structure is adopted.
EXAMPLE III
As shown in fig. 1, the present invention is different from the first and second embodiments in that the insulating layer 2 is an epdm thermoplastic elastomer insulating layer.
Further, the insulating layer 2 is formed by extrusion coating of a PVC extruder on the outside of the stranded aluminum alloy conductor.
Example four
As shown in fig. 1, the difference from the first to third embodiments is that the thickness of the polyester aluminum composite tape in the polyester aluminum composite tape shielding layer 31 is 0.08 mm.
Furthermore, the copper-clad aluminum-magnesium alloy wire in the copper-clad aluminum-magnesium alloy braided shielding layer is selected from CCAM-10A series, namely the copper-clad aluminum-magnesium alloy wire with 10% copper layer volume ratio in an annealing soft state.
Further, the outer diameter range of the copper-clad aluminum magnesium alloy wire in the copper-clad aluminum magnesium alloy wire braided shielding layer 32 is 0.10 mm-0.287 mm.
Further, the density of the copper-clad aluminum magnesium alloy wires in the copper-clad aluminum magnesium alloy wire braided shielding layer 32 is 3.45g/mm3And the weaving density of the copper-clad aluminum-magnesium alloy wire braided shielding layer 32 is more than 85 percent.
EXAMPLE five
As shown in fig. 1, the difference from the first to fourth embodiments is that, further, the sheath layer 4 is formed by extrusion coating of a PVC extruder on the copper-clad aluminum magnesium alloy wire braided shield layer 32.
The utility model adopts the above-mentioned ultra-light anti-interference multicore shielding control cable structure, have following advantage:
1. because the adopted aluminum alloy conductor material is ethylene propylene diene monomer thermoplastic elastomer which is a high-temperature insulating material, the rated current of the section of the same insulating wire core 1 is 5 percent higher than that of the polyvinyl chloride copper conductor cable;
2. the weight of a control cable product is reduced by 60 percent compared with that of a common shielded cable by optimizing the material of the control cable and optimizing the structure of the control cable;
3. the flexible insulating material and the sheath material are selected, so that the bending performance of the control cable is more excellent, and the minimum bending radius can reach 3 times of the outer diameter of the control cable;
4. the selection of the high-temperature insulating material and the sheath material ensures that the use environment temperature of the control cable can be between minus 55 ℃ and plus 125 ℃, and the control cable can cover the use in the global range;
5. the polyester aluminum composite belt and the copper-clad aluminum-magnesium alloy wire are adopted for combined shielding, so that the anti-electromagnetic interference capability of the control cable is greatly improved and can reach-80 dB;
6. the adopted insulating material has good electrical performance, the test voltage can reach more than 5000V, the insulation resistance exceeds 1500 MOmega.km, and the electrical performance is more excellent compared with the common control cable product;
7. the control cable product has good cost performance, and the cost of the control cable product is only 25% of that of the polyvinyl chloride insulation shielding control cable;
8. in the production process of the control cable product, no new process equipment is needed, and no fixed asset investment is generated.
Now 19 cores (i.e. 1+6+12 stranding) with a cross-section of 1.0mm2The weight of the insulated wire core 1 of the multi-core shielded control cable is calculated as an example, the weight of the copper conductor polyvinyl chloride insulated composite shielded control cable is 175kg/km, while the weight of the ultra-light anti-interference multi-core shielded control cable is only 71kg/km, and the weight of the ultra-light anti-interference multi-core shielded control cable is reduced by 60 percent compared with the weight of the copper conductor polyvinyl chloride insulated composite shielded control cable.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (9)
1. The utility model provides an ultra-light anti-interference multicore shielding control cable, includes cable core, double-shielded layer (3) and restrictive coating (4), its characterized in that: the double shielding layer (3) is formed by a polyester aluminum composite belt shielding layer (31) formed by longitudinally wrapping a polyester aluminum composite belt outside a cable core and a copper-clad aluminum magnesium alloy wire braided shielding layer (32) braided outside the polyester aluminum composite belt shielding layer (31), a sheath layer (4) is wrapped outside the copper-clad aluminum magnesium alloy wire braided shielding layer (32), the sheath layer (4) is a flame-retardant thermoplastic elastomer sheath layer, and the outer diameter range of a copper-clad aluminum magnesium alloy wire in the copper-clad aluminum magnesium alloy wire braided shielding layer (32) is 0.10-0.287 mm.
2. The ultra-light anti-interference multi-core shielded control cable of claim 1, wherein: the cable core is formed by stranding a plurality of strands of insulating wire cores (1) through a cabling process.
3. The ultra-light anti-interference multi-core shielded control cable of claim 2, wherein: the insulating wire core (1) is a stranded aluminum alloy conductor coated with an insulating layer (2).
4. The ultra-light anti-interference multi-core shielded control cable of claim 3, wherein: the stranded aluminum alloy conductor adopts six types of stranded aluminum alloy conductors, and the density of the stranded aluminum alloy conductors is 2.9g/mm3。
5. The ultra-light anti-interference multi-core shielded control cable of claim 3 or 4, wherein: the diameter range of the aluminum alloy wires in the stranded aluminum alloy conductor is 0.2 mm-0.3 mm.
6. The ultra-light anti-interference multi-core shielded control cable of claim 3, wherein: the stranding pitch diameter ratio of the multiple insulated wire cores (1) and the stranding pitch diameter ratio of the stranded aluminum alloy conductor in each insulated wire core (1) are both 13-15.
7. The ultra-light anti-interference multi-core shielded control cable of claim 3, wherein: the insulating layer (2) is an ethylene propylene diene monomer thermoplastic elastomer insulating layer.
8. The ultra-light anti-interference multi-core shielded control cable of claim 1, wherein: the thickness of the polyester aluminum composite belt in the polyester aluminum composite belt shielding layer (31) is 0.08 mm.
9. The ultra-light anti-interference multi-core shielded control cable of claim 1, wherein: the density of the copper-clad aluminum-magnesium alloy wires in the copper-clad aluminum-magnesium alloy wire braided shielding layer (32) is 3.45g/mm3And the weaving density of the copper-clad aluminum-magnesium alloy wire weaving shielding layer (32) is more than 85 percent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022667952.2U CN213844790U (en) | 2020-11-17 | 2020-11-17 | Ultra-light anti-interference multi-core shielding control cable |
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| CN202022667952.2U CN213844790U (en) | 2020-11-17 | 2020-11-17 | Ultra-light anti-interference multi-core shielding control cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113808794A (en) * | 2021-09-16 | 2021-12-17 | 北京航天新立科技有限公司 | Design and manufacturing method of light high-shielding cable of large electric drive vehicle |
| CN114360774A (en) * | 2021-12-09 | 2022-04-15 | 通鼎互联信息股份有限公司 | High-elasticity flexible cable |
-
2020
- 2020-11-17 CN CN202022667952.2U patent/CN213844790U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113808794A (en) * | 2021-09-16 | 2021-12-17 | 北京航天新立科技有限公司 | Design and manufacturing method of light high-shielding cable of large electric drive vehicle |
| CN113808794B (en) * | 2021-09-16 | 2023-08-29 | 北京航天新立科技有限公司 | Design and manufacturing method of lightweight high-shielding cable of large electric drive vehicle |
| CN114360774A (en) * | 2021-12-09 | 2022-04-15 | 通鼎互联信息股份有限公司 | High-elasticity flexible cable |
| CN114360774B (en) * | 2021-12-09 | 2023-11-03 | 通鼎互联信息股份有限公司 | High-elasticity flexible cable |
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