CN112786242A - Multi-core flexible cable for smart energy and preparation method - Google Patents

Multi-core flexible cable for smart energy and preparation method Download PDF

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Publication number
CN112786242A
CN112786242A CN202110038412.4A CN202110038412A CN112786242A CN 112786242 A CN112786242 A CN 112786242A CN 202110038412 A CN202110038412 A CN 202110038412A CN 112786242 A CN112786242 A CN 112786242A
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China
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core
layer
flexible cable
tinned
aluminum foil
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Inventor
丁红梅
盛金伟
徐静
陈鑫
吴国良
张慎学
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Far East Cable Co Ltd
New Far East Cable Co Ltd
Far East Composite Technology Co Ltd
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Far East Cable Co Ltd
New Far East Cable Co Ltd
Far East Composite Technology Co Ltd
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Priority to CN202110038412.4A priority Critical patent/CN112786242A/en
Publication of CN112786242A publication Critical patent/CN112786242A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1895Internal space filling-up means
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/06Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/10Screens specially adapted for reducing interference from external sources
    • H01B11/1008Features relating to screening tape per se
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/06Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/10Screens specially adapted for reducing interference from external sources
    • H01B11/1033Screens specially adapted for reducing interference from external sources composed of a wire-braided conductor
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/06Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/10Screens specially adapted for reducing interference from external sources
    • H01B11/1091Screens specially adapted for reducing interference from external sources with screen grounding means, e.g. drain wires
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/0045Cable-harnesses
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/04Flexible cables, conductors, or cords, e.g. trailing cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/1825Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of a high tensile strength core
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875Multi-layer sheaths
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28Protection against damage caused by moisture, corrosion, chemical attack or weather
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2813Protection against damage caused by electrical, chemical or water tree deterioration

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention relates to a multi-core flexible cable for intelligent energy and a preparation method thereof. According to the multi-core flexible cable for the intelligent energy and the preparation method thereof, the plum-blossom-shaped framework separates the control wire core groups, so that the roundness of the multi-core flexible cable is improved, and the current transmission loss among the wire groups is reduced; five partition arrangements of control core group increase the stability of multicore flexible cable structure in the use, reduce the signal attenuation and the frictional force between the line group simultaneously, and the core is filled at plum blossom form skeleton center adopts the reinforcement core structure simultaneously, has improved the stretching resistance and the compliance of filling, has prolonged the life of cable, guarantees the electric continuity when multicore flexible cable round trip movement through the shielding layer, has multiple functions such as better resistant oil, wear-resisting, low temperature resistant concurrently.

Description

Multi-core flexible cable for smart energy and preparation method
Technical Field
The invention belongs to the technical field of flexible cables, and particularly relates to a multi-core flexible cable for intelligent energy and a preparation method thereof.
Background
Along with the rapid development of domestic automation, the requirements on the signal transmission effect and the flexibility of the cable are higher and higher, the requirements on the service life and the product performance of the cable are higher, the requirements on the appearance quality of the cable are higher, and the conventional flexible cable cannot meet the market demand.
Therefore, there is a need to design a new multi-core flexible cable and a manufacturing process thereof to solve the above problems.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a multi-core flexible cable for intelligent energy and a preparation method thereof.
In order to achieve the purpose and achieve the technical effect, the invention adopts the technical scheme that:
the utility model provides a wisdom is multicore flexible cable for energy, includes cable core, shielding layer, interior sheath, enhancement layer and the outer jacket that from interior to exterior set gradually, the cable core includes plum blossom form skeleton and sets up in the outside a plurality of groups control core group of plum blossom form skeleton, sets up the packing piece in the plum blossom form skeleton.
Furthermore, the filling piece comprises a center filling core arranged in the center of the plum blossom-shaped framework and plum blossom-shaped leaf filling arranged in five plum blossom-shaped leaves of the plum blossom-shaped framework, and the center filling core is not connected with the plum blossom-shaped leaf filling.
Furthermore, the total of five groups of control wire core group, every group control wire core group all include polyimide film and cladding in the control wire core of the inside two pair twists of polyimide film, set up a set of control wire core group in the clearance between every two adjacent plum blossom shape leaf peripheries of plum blossom shape skeleton.
Furthermore, the control wire core comprises a wire core conductor and an insulating layer coated outside the wire core conductor, the wire core conductor is a stranded conductor formed by stranding a plurality of super-five tinned copper wires, and the thickness of the insulating layer is 0.3-1.0 mm.
Furthermore, the pair-twisting pitch of the two pair-twisted control wire cores of each group of control wire core groups is 60-80 mm.
Further, the shielding layer is including setting up in the outside both sides exhibition wing aluminium foil layer of cable core and setting up in the outside tinned copper wire weaving layer of both sides exhibition wing aluminium foil layer, set up a plurality of groups tinned drainage line between both sides exhibition wing aluminium foil layer and the tinned copper wire weaving layer, the tinned drainage line contacts with the strap metal covering on both sides exhibition wing aluminium foil layer.
Furthermore, the bilateral spreading aluminum foil layer is made of a metal belt with the thickness of 0.045-0.05mm and the width of 20-25mm, the covering rate of the metal belt is 25-30%, and the control wire core group is completely covered.
Furthermore, the tinned drainage wires are divided into five groups and are uniformly distributed between the bilateral finned aluminum foil layer and the tinned copper wire braid layer in five equal parts, the tinned drainage wires are formed by twisting a plurality of tinned copper wires, and the twisting pitch is 18-22 mm.
Furthermore, the weaving angle of the tinned copper wire braid layer in contact with the tinned drainage wire is 40-50 degrees, and the weaving density is not less than 85 percent.
Furthermore, the reinforcing layer is a braided layer braided by high-strength Kevlar fibers, the braiding angle is 40-50 degrees, and the braiding density is 50-55 percent.
Furthermore, the outer protective layer is made of butyronitrile polyvinyl chloride material, and the thickness of the outer protective layer is 1.5-2.4 mm.
The invention discloses a preparation method of a multi-core flexible cable for intelligent energy, which comprises the following steps:
s1: manufacturing a control wire core and a plum blossom-shaped framework, wherein a conductor of the control wire core is formed by twisting a super-five tin-plated copper wire stranded wire;
s2: extruding an insulating layer outside a conductor of the control wire core in an extrusion mode;
s3: twining the control wire cores extruded out of the insulating layer pairwise, controlling the twining pitch to be 60-80mm, and wrapping polyimide films outside the two control wire cores after the twining to form a control wire core group;
s4: respectively and uniformly arranging the plurality of control wire core groups obtained in the step S3 outside five plum-blossom-shaped leaves formed by the plum blossom-shaped framework to form a uniformly distributed state, wherein a center filling core at the central position inside the plum blossom-shaped framework is formed by filling high-strength Kafra fibers, the plum blossom-shaped leaves are formed by filling reinforced cotton threads, and finally, cable cores are manufactured;
s5: the shielding layer is arranged outside the cable core: the outer side of the cable core is provided with a bilateral finned aluminum foil layer, a tinned copper wire braided layer is braided outside the bilateral finned aluminum foil layer, five groups of tinned drainage wires are equally distributed between the bilateral finned aluminum foil layer and the tinned copper wire braided layer, and the tinned drainage wires are contacted with a metal belt metal surface of the bilateral finned aluminum foil layer to form a shielding layer;
s6: an inner protection layer is extruded on the outer side of the shielding layer;
s7: weaving a reinforcing layer on the inner protective layer;
s8: the outer protection layer is extruded outside the reinforcing layer, the outer protection layer is extruded, and the adhesion between the outer protection layer and the reinforcing layer are increased compared with the prior art, and the novel reinforced concrete structure has the beneficial effects that:
(1) the polyimide film coats the control wire cores to form a control wire core group which is arranged in a gap outside the plum blossom-shaped framework, and the plum blossom-shaped framework separates five groups of control wire core groups, so that the roundness of the multi-core flexible cable is improved, and the current transmission loss among the wire groups is reduced; the control wire core groups are uniformly arranged in five equal parts, so that the structural stability of the multi-core flexible cable in the use process is improved, the friction force between the wire groups is reduced, and meanwhile, the filling core in the center of the plum blossom-shaped framework adopts a core-reinforcing structure, so that the filling tensile resistance is improved, and the service life of the multi-core flexible cable is prolonged;
(2) the control wire core group is made of control wire cores twisted pairwise, the twist pitches are different and are controlled to be 60-80mm, a layer of polyimide film is wrapped outside the twisted control wire cores, and the sliding property between the wire group and the filling is improved;
(3) the central filling core in the middle of the plum blossom-shaped framework is filled with high-strength Kevlar fiber, and the plum blossom-shaped leaves in the five plum blossom-shaped leaves of the plum blossom-shaped framework are filled with reinforced cotton threads, so that the filling flexibility is improved, and the tensile property of the plum blossom-shaped framework is improved;
(4) the shielding layer is composed of a bilateral finned aluminum foil layer, a tinned drainage wire and a tinned copper wire braid layer, the anti-interference performance of the shielding layer is increased, and meanwhile, the electrical continuity of the cable in the process of moving back and forth is ensured.
(5) The inner protection layer is made of elastomer material with the hardness of 80A, so that the abrasion between the reinforcing layer and the shielding layer is improved, and the flexibility of the cable is improved;
(6) the reinforcing layer is formed by weaving high-strength Kevlar fibers, the weaving angle is 40-50 degrees, the weaving density is 50-55 percent, the tensile resistance of the cable is improved, and the flexibility of the cable is improved;
(7) the outer protecting layer is made of butyronitrile polyvinyl chloride material, has the characteristics of oil resistance, wear resistance, low temperature resistance and the like, and has a soft and smooth surface.
Drawings
FIG. 1 is a schematic structural view of the present invention;
wherein, 1, cable core; 1-1, plum blossom shaped skeleton; 1-1-1, a center-filled core; 1-1-2, filling plum blossom-shaped leaves; 1-2, control wire core; 1-3, a polyimide film; 2. a shielding layer; 2-1, spreading the wing aluminum foil layer on both sides; 2-2, plating a tin drainage wire; 2-3, a tinned copper wire braid; 3. an inner protective layer; 4. a reinforcing layer; 5. an outer jacket.
Detailed Description
The following detailed description of the embodiments of the present invention is provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to clearly and clearly define the scope of the present invention.
As shown in figure 1, the multi-core flexible cable for the intelligent energy comprises a cable core 1, a shielding layer 2, an inner protection layer 3, a reinforcing layer 4 and an outer protection layer 5 which are sequentially arranged from inside to outside, wherein the cable core 1 comprises a quincunx framework 1-1 and a plurality of groups of control cable core groups arranged outside the quincunx framework 1-1, a filling part is arranged in the quincunx framework 1-1 and comprises a central filling core 1-1-1 arranged at the central position inside the quincunx framework 1-1 and quincunx leaf fillings 1-1-2 arranged in five quincunx leaves inside the quincunx framework 1-1.
A gap exists between the central filling core 1-1-1 and the plum blossom-shaped leaf filling 1-1-2, the gap is not connected, and the central stress is large under the condition that the cable is bent for a long time, so the central filling core 1-1-1 is filled with high-strength kava fibers, the plum blossom-shaped leaf filling 1-1-2 is filled with reinforced cotton threads, and the plum blossom-shaped leaf filling 1-1-2 is formed in a plum blossom leaf shape during extrusion and provides a certain supporting force, so that the filling flexibility is improved, and the tensile resistance of the plum blossom-shaped framework 1-1 is increased.
The control wire core group comprises five groups, each group of control wire core group comprises polyimide films 1-3 and control wire cores 1-2 wrapped in two pairs of polyimide films 1-3, a group of control wire core groups are arranged in the peripheral gap of plum blossom-shaped leaves of every two adjacent quincuncial frameworks 1-1, the pair twisting pitch of the two pairs of control wire cores 1-2 of each group of control wire core group is 60-80mm, the pair twisting pitches are different, the polyimide films 1-3 are wrapped after twisting, and the sliding performance between the wire groups and filling is improved.
The control wire core 1-2 comprises a wire core conductor and an insulating layer coated outside the wire core conductor, the wire core conductor is a stranded conductor formed by stranding a plurality of super-five tinned copper wires and is a high-precision material, the stranded conductor has the effects of resisting oxidation and reducing signal attenuation, the electrical property is ensured to be more stable, the thickness of the insulating layer is 0.3-1.0mm, preferably 0.5mm, and the stranded conductor is extruded to the outside of the wire core conductor by adopting an extrusion mode.
The shielding layer 2 comprises a bilateral finned aluminum foil layer 2-1 arranged outside the cable core 1 and a tinned copper wire woven layer 2-3 arranged outside the bilateral finned aluminum foil layer 2-1, a plurality of groups of tinned drainage wires 2-2 are arranged between the bilateral finned aluminum foil layer 2-1 and the tinned copper wire woven layer 2-3, and the tinned drainage wires 2-2 are in contact with a metal strip metal surface of the bilateral finned aluminum foil layer 2-1, so that the interference resistance of the shielding layer 2 is improved, and the electrical continuity of the cable in the process of moving back and forth is ensured.
The bilateral spread-fin aluminum foil layer 2-1 is made of a metal belt with the thickness of 0.045-0.05mm and the width of 20-25mm, the metal covering rate of the metal belt is 25-30%, the control wire core group is completely covered, the shielding effect is good, and the weight is light and the flexibility is good.
The tinned drainage wires 2-2 are divided into five groups, the five groups are evenly distributed between the bilateral finned aluminum foil layer 2-1 and the tinned copper wire braid layer 2-3, the tinned drainage wires 2-2 are formed by twisting a plurality of tinned copper wires with the diameter of 0.190-0.195mm, and the twisting pitch is 18-22 mm. The tin-plated drainage wire 2-2 is preferably formed by twisting sixteen tin-plated copper wires with the diameter of 0.190-0.195mm, and is in contact with the metal surface of the metal belt of the double-side spread-fin aluminum foil layer 2-1, so that the electrical continuity of the shielding layer 2 is ensured.
The tinned copper wire braided layer 2-3 is formed by braiding a plurality of tinned copper wires with the diameters of 0.145-0.15mm, the braiding angle of the tinned copper wire braided layer 2-3 in contact with the tinned drainage wire 2-2 is 40-50 degrees, the braiding density is not less than 85 percent, the best shielding effect of the whole frequency spectrum is further improved, and excellent mechanical strength and low direct current impedance characteristic are guaranteed.
The inner sheath layer 3 is made of elastomer material with the hardness of 80A, so that abrasion between the reinforcing layer 4 and the shielding layer 2 is improved, and meanwhile, the flexibility of the cable is improved.
The reinforcing layer 4 is a braided layer formed by braiding high-strength Kevlar fibers, the braiding angle is 40-50 degrees, the braiding density is 50-55 percent, the tensile resistance of the cable is improved, and meanwhile the flexibility of the cable is improved.
The outer protective layer 5 is made of butyronitrile polyvinyl chloride material, has the characteristics of oil resistance, wear resistance, low temperature resistance and the like, is smooth in soft surface, 1.5-2.4mm in thickness, preferably 1.8mm, and is extruded to the outside of the reinforcing layer 4 by adopting an extrusion mode.
A preparation method of a multi-core flexible cable for intelligent energy comprises the following steps:
s1: manufacturing a control wire core 1-2 and a plum blossom-shaped framework 1-1; the conductor of the control wire core 1-2 is formed by twisting a super-five tin-plated copper wire stranded wire; the conductor of the control wire core 1-2 is made of high-precision material, has the functions of resisting oxidation, reducing signal attenuation and the like, and ensures more stable electrical property;
s2: extruding an insulating layer outside the conductor of the control wire core 1-2 in an extrusion mode;
s3: twining the control wire cores extruded out of the insulating layer pairwise, controlling the twining pitch to be 60-80mm, and wrapping the polyimide film 1-3 outside the two control wire cores 1-2 after the twining and stranding to form a control wire core group so as to increase the sliding property between the wire group and the filling space;
s4: respectively and uniformly arranging the plurality of control wire core groups obtained in the step S3 outside five plum-blossom-shaped leaves formed by the plum-blossom-shaped framework 1-1 to form a uniformly distributed state, wherein a center filling core 1-1-1 in the central position inside the plum-blossom-shaped framework 1-1 is formed by filling high-strength Kaffir fibers, and the plum-blossom-shaped leaf filling core 1-1-2 is formed by filling reinforced cotton threads to finally form a cable core 1;
s5: a shielding layer 2 is arranged on the outer side of the cable core 1; specifically, a double-side finned aluminum foil layer 2-1 is arranged on the outer side of a cable core 1, a tinned copper wire braided layer 2-3 is braided outside the double-side finned aluminum foil layer 2-1, five groups of tinned drainage wires 2-2 are equally distributed between the double-side finned aluminum foil layer 2-1 and the tinned copper wire braided layer 2-3, and the tinned drainage wires 2-2 are in contact with a metal surface of a metal belt of the double-side finned aluminum foil layer 2-1 to form a shielding layer 2;
s6: an inner protection layer 3 is extruded and coated on the outer side of the shielding layer 2;
s7: weaving a reinforcing layer 4 in the inner protective layer 3;
s8: at 4 outside crowded package outer jacket 5 of enhancement layer, outer jacket 5 adopts the extrusion formula, has increased with enhancement layer 4, the viscidity of interior sheath 3, has improved the tensile resistance on sheath surface.
The parts of the invention not specifically described can be realized by adopting the prior art, and the details are not described herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. The utility model provides a wisdom is multicore flexible cable for energy, its characterized in that includes cable core, shielding layer, interior sheath, enhancement layer and the outer sheath that from interior to exterior set gradually, the cable core includes plum blossom form skeleton and sets up in the outside a plurality of groups control core group of plum blossom form skeleton, sets up the filling member in the plum blossom form skeleton.
2. The intelligent energy multi-core flexible cable as claimed in claim 1, wherein the filling member comprises a central filling core disposed at a central position inside the quincunx skeleton and quincunx leaf fillings disposed inside five quincunx leaves inside the quincunx skeleton, and the central filling core and the quincunx leaf fillings are not connected.
3. The multi-core flexible cable for the intelligent energy source as claimed in claim 1, wherein the number of the control conductor sets is five, a set of the control conductor sets is arranged in a gap between every two adjacent quincunx leaf peripheries of the quincunx-shaped framework, each set of the control conductor sets comprises a polyimide film and two twisted control conductor cores coated inside the polyimide film, the twisted control conductor pitch of the two twisted control conductor cores of each set of the control conductor sets is 60-80mm, each control conductor core comprises a conductor core and an insulating layer coated outside the conductor core, each conductor core is a twisted conductor formed by twisting a plurality of super-five tinned copper wires, and the thickness of the insulating layer is 0.3-1.0 mm.
4. The multi-core flexible cable for the smart energy according to claim 1, wherein the shielding layer comprises a double-sided winged aluminum foil layer arranged outside the cable core and a tinned copper wire braid layer arranged outside the double-sided winged aluminum foil layer, a plurality of sets of tinned drainage wires are arranged between the double-sided winged aluminum foil layer and the tinned copper wire braid layer, and the tinned drainage wires are in contact with a metal belt metal surface of the double-sided winged aluminum foil layer.
5. The intelligent energy multicore flexible cable of claim 4, wherein the bilateral finned aluminum foil layer is made of a metal band with a thickness of 0.045-0.05mm and a width of 20-25mm, and the metal band has a cover ratio of 25-30% and completely covers the set of control wire cores.
6. The multi-core flexible cable for smart energy according to claim 4, wherein the tinned drainage wires comprise five groups and are uniformly distributed between the bilateral finned aluminum foil layer and the tinned copper wire braid layer in five equal parts, the tinned drainage wires are formed by twisting a plurality of tinned copper wires, and the twisting pitch is 18-22 mm.
7. The intelligent energy multicore flexible cable of claim 4, wherein the braided layer of tinned copper wire is in contact with the tinned drainage wire at a braiding angle of 40-50 ° and a braiding density of not less than 85%.
8. The multi-core flexible cable for smart energy according to claim 1, wherein the reinforcing layer is a braided layer braided with high strength kevlar, the braiding angle is 40-50 °, the braiding density is 50-55%, and the thickness of the outer sheath is 1.5-2.4 mm.
9. The method for preparing a multi-core flexible cable for intelligent energy according to any one of claims 1 to 8, comprising the steps of:
s1: manufacturing a control wire core and a plum blossom-shaped framework, wherein a conductor of the control wire core is formed by twisting a super-five tin-plated copper wire stranded wire;
s2: extruding an insulating layer outside a conductor of the control wire core in an extrusion mode;
s3: twining the control wire cores extruded out of the insulating layer pairwise, controlling the twining pitch to be 60-80mm, and wrapping polyimide films outside the two control wire cores after the twining to form a control wire core group;
s4: respectively and uniformly arranging the plurality of control wire core groups obtained in the step S3 outside five plum-blossom-shaped leaves formed by the plum blossom-shaped framework to form a uniformly distributed state, wherein a center filling core at the central position inside the plum blossom-shaped framework is formed by filling high-strength Kafra fibers, the plum blossom-shaped leaves are formed by filling reinforced cotton threads, and finally, cable cores are manufactured;
s5: the outer side of the cable core is provided with a bilateral finned aluminum foil layer, a tinned copper wire braided layer is braided outside the bilateral finned aluminum foil layer, five groups of tinned drainage wires are equally distributed between the bilateral finned aluminum foil layer and the tinned copper wire braided layer, and the tinned drainage wires are contacted with a metal belt metal surface of the bilateral finned aluminum foil layer to form a shielding layer;
s6: an inner protection layer is extruded on the outer side of the shielding layer;
s7: weaving a reinforcing layer on the inner protective layer;
s8: the outer protective layer is extruded outside the reinforcing layer, and the outer protective layer is extruded to increase the viscosity of the reinforcing layer and the inner protective layer.
CN202110038412.4A 2021-01-12 2021-01-12 Multi-core flexible cable for smart energy and preparation method Pending CN112786242A (en)

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CN211294731U (en) * 2019-12-26 2020-08-18 天津金山电线电缆股份有限公司 High transmission rate Ethernet cable
CN214476533U (en) * 2021-01-12 2021-10-22 远东电缆有限公司 Wisdom is multicore flexible cable for energy

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CN101685682A (en) * 2009-06-24 2010-03-31 沈群华 Skeleton cable
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CN211294731U (en) * 2019-12-26 2020-08-18 天津金山电线电缆股份有限公司 High transmission rate Ethernet cable
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