CN218414016U - Bending-resistant light multi-core cable - Google Patents
Bending-resistant light multi-core cable Download PDFInfo
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- CN218414016U CN218414016U CN202220296174.7U CN202220296174U CN218414016U CN 218414016 U CN218414016 U CN 218414016U CN 202220296174 U CN202220296174 U CN 202220296174U CN 218414016 U CN218414016 U CN 218414016U
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- 238000005452 bending Methods 0.000 title abstract description 7
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 125000003118 aryl group Chemical group 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 10
- 229920002635 polyurethane Polymers 0.000 claims abstract description 8
- 239000004814 polyurethane Substances 0.000 claims abstract description 8
- 239000000805 composite resin Substances 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005253 cladding Methods 0.000 claims abstract 4
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 claims description 25
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- QHSJIZLJUFMIFP-UHFFFAOYSA-N ethene;1,1,2,2-tetrafluoroethene Chemical compound C=C.FC(F)=C(F)F QHSJIZLJUFMIFP-UHFFFAOYSA-N 0.000 claims description 3
- 229920009441 perflouroethylene propylene Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- -1 polypropylene Polymers 0.000 abstract description 6
- 239000004743 Polypropylene Substances 0.000 abstract description 5
- 229920001155 polypropylene Polymers 0.000 abstract description 5
- 239000011162 core material Substances 0.000 description 66
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229920006240 drawn fiber Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Classifications
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Communication Cables (AREA)
Abstract
The utility model discloses a resistant type light multicore cable of bending, including six power sinle silks, two insulating pair twist sinle silks and a relief line twist around a counterpoint type whole aromatic copolyamide tensile fiber core and constitute the cable core jointly, power sinle silk and insulating pair twist sinle silk and relief line external diameter ratio are 0.95 to 1.05, tensile fiber core external diameter is 2.25 times of power sinle silk external diameter at least, the outside cladding PTFE of counterpoint type whole aromatic copolyamide tensile fiber core winds the covering, the cable core outside is cladding fluororesin area in proper order winds covering and polyurethane oversheath layer, the core is filled to iron powder polypropylene composite resin between cable core and the fluororesin area winding covering, the power sinle silk includes first inner conductor and first PFA insulating layer, the external diameter of power sinle silk is 1.6mm to 3.2mm. The cable is light in weight, and has better flexibility and bending resistance, stable electric shielding performance and durable use.
Description
Technical Field
The application belongs to the technical field of cables, and particularly relates to a light flexible-resistant multi-core cable.
Background
The electromagnetic noise environment at the site of industrial applications is often quite complex, and the radiation or conduction (EMI) of electromagnetic noise can seriously interfere with the proper operation of the equipment. One very important way to combat electromagnetic noise interference on electrical lines is to use shielded cables. In an automated industrial manufacturing line, electrical connection and control of small robots, electronic machines and the like are required to be applied to a multi-core cable with high flexibility and excellent flexing resistance, the multi-core cable is generally provided with a metal shielding layer, however, in the working process, the multi-core cable needs to be repeatedly twisted and bent, the metal shielding layer is easy to break, the shielding effect is unstable, the electrical characteristics are affected, and in addition, under the trend of the diameter reduction and weight reduction of the cable, the design of cost reduction, light weight and weight reduction is not facilitated by the metal shielding layer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to prior art not enough, the technical problem that solve provides a resistant flexible type light multicore cable, under the preparation prerequisite of lightweight, gets rid of the metallic shield layer, has better pliability, resistant flexibility, and the electrical shielding performance is stable, durable use.
The present application solves the above-mentioned problems by the following technical solutions.
The bending-resistant light multi-core cable comprises six power wire cores, two insulating twisted-pair wire cores and a drain wire, wherein the six power wire cores, the two insulating twisted-pair wire cores and the drain wire are twisted together around a para-type wholly aromatic copolyamide tensile fiber core to form a cable core, one insulating twisted-pair wire core or the drain wire is arranged at every two power wire cores, the external diameter ratio of the power wire cores to the insulating twisted-pair wire cores to the drain wire is 0.95-1.05, the external diameter of the para-type wholly aromatic copolyamide tensile fiber core is at least 2.25 times of the external diameter of the power wire cores, the para-type wholly aromatic copolyamide tensile fiber core is coated with a PTFE (polytetrafluoroethylene) wrapping layer, the cable core is sequentially coated with a fluororesin tape wrapping layer and a polyurethane outer sheath layer, an iron powder polypropylene composite resin filled core is filled between the cable core and the fluororesin tape wrapping layer, the power wire core comprises a first inner conductor and a first PFA insulating layer, and the external diameter of the power wire core is 1.6-3.2 mm.
Preferably, the thickness of the first PFA insulating layer is 0.2mm to 0.4mm.
Preferably, the first inner conductor is formed by concentrically twisting a plurality of tinned copper monofilaments with the diameter of 0.02mm to 0.05 mm.
Preferably, the insulated twisted-pair wire core comprises two twisted-pair wire cores twisted in pairs to form a twisted-pair wire core body, a second PFA insulating layer wraps the twisted-pair wire core body, and the twisted-pair wire core comprises a second inner conductor and a foamed PFA insulating layer.
Preferably, the second inner conductor is formed by concentrically stranding a plurality of tinned copper wires with the diameter of 0.01mm to 0.04 mm.
Preferably, the drain wire comprises a copper stranded conductor and a third PFA insulating layer.
Preferably, the copper stranded conductor is formed by twisting and pressing a plurality of soft copper wires with the diameter of 0.05mm to 0.08 mm.
Preferably, the fluorine resin tape wrapping layer is a PTFE, PFA, FEP or ETFE resin tape wrapping layer.
Preferably, the fluorine resin tape has a lay length of 0.5 to 4 times the tape width around the clad.
Preferably, the thickness of the fluororesin tape winding layer and the thickness of the polyurethane outer sheath layer are both 0.5mm to 0.9mm.
The beneficial effect of this application:
1. the para-type wholly aromatic copolyamide tensile fiber core material has high tensile elastic modulus and the outer diameter at least 2.25 times of the outer diameter of a power core, so that the tensile resistance of the cable core is improved, the cable core can better bear the lateral pressure when the cable is bent, and the flexibility and the flexing resistance are enhanced. Get rid of the metal shielding layer, help the design of lightweight, reduce cost avoids the shielding layer broken string to take place, replaces to use iron powder polypropylene composite resin to fill the core and absorbs the noise interference that comes from the outside and turns into the heat, reduces between the sinle silk signal cross talk phenomenon and takes place, and guarantee noise shielding performance is stable.
2. The PTFE lapping layer is coated outside the para-position type wholly aromatic copolyamide tensile fiber core material, PFA insulating layers are coated outside the power supply wire cores, the insulating twisted-pair wire cores and the drain wires, the PFA insulating layers can reduce dielectric constant and dielectric loss, capacitance and attenuation are reduced, fine-diameter light manufacturing is facilitated, the fluororesin belt lapping layer is coated outside the cable core, excellent sliding performance is formed between the inner portion and the outer portion of the cable core through the fluororesin lapping layer, better anti-abrasion effect is obtained between layers, the effect similar to a rolling bearing is formed, sliding friction resistance is small, local stress concentration is greatly reduced, torque force is reduced, improvement of the bending resistance of the cable is facilitated, and durability is better.
3. The outer diameter ratio of the power wire core to the insulating twisted pair wire core to the drain wire is optimized to be 0.95 to 1.05, the circular section of the cable core is ensured, and the flexibility and the bending resistance of the cable are improved.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present application.
Description of reference numerals:
the composite cable comprises a power supply wire core, 11-a first inner conductor, 12-a first PFA insulating layer, 2-an insulating twisted-pair wire core, 21-a twisted-pair wire core, 211-a second inner conductor, 212-a foamed PFA insulating layer, 22-a second PFA insulating layer, a 3-para-type wholly aromatic copolyamide tensile fiber core material, a 4-PTFE wrapping layer, a 5-fluororesin tape wrapping layer, a 6-polyurethane outer sheath layer, a 7-iron powder polypropylene composite resin filling core material, 8-a drain wire, an 81-copper stranded conductor and a 82-a third PFA insulating layer.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, the bending-resistant lightweight multicore cable according to the embodiment of the present application includes six power cores 1, two insulated twisted pair cores 2, and a drain wire 8, which are twisted together around a para-type wholly aromatic copolyamide drawn fiber core 3 to form a cable core. Every interval two the power sinle silk 1 sets up one the insulating pair twist sinle silk 2 or drain wire 8. The outer diameter ratio of the power wire core 1 to the insulation twisted wire core 2 and the drain wire 8 is 0.95 to 1.05. The outer diameter of the para-type wholly aromatic copolyamide drawn fiber core material 3 is at least 2.25 times of the outer diameter of the power wire core 1. The external of the para-type wholly aromatic copolyamide stretched fiber core material 3 is coated with a PTFE wrapping layer 4. The cable core is coated with a fluororesin tape winding layer 5 and a polyurethane outer sheath layer 6 in sequence, for example, the fluororesin tape winding layer 5 is a PTFE, PFA, FEP or ETFE resin tape winding layer, and specifically, the lay length of the fluororesin tape winding layer 5 is 0.5 to 4 times of the bandwidth. Further, the thickness of the fluororesin tape winding layer 5 and the thickness of the polyurethane outer sheath layer 6 are both 0.5mm to 0.9mm. And a core material 7 filled with iron powder and polypropylene composite resin is filled between the cable core and the fluororesin tape winding layer 5.
The power core 1 comprises a first inner conductor 11 and a first PFA insulating layer 12, and the outer diameter of the power core 1 is 1.6mm to 3.2mm. Specifically, the first inner conductor 11 is formed by concentrically twisting a plurality of tinned copper monofilaments with the diameter of 0.02mm to 0.05 mm. The first PFA insulating layer 12 has a thickness of 0.2mm to 0.4mm.
In one embodiment, the insulated twisted-pair wire core 2 comprises two twisted-pair wire cores 21 twisted in pairs to form a twisted-pair core, the twisted-pair core is externally coated with a second PFA insulating layer 22, and the twisted-pair wire core 21 comprises a second inner conductor 211 and a foamed PFA insulating layer 212. Specifically, the second inner conductor 211 is formed by concentrically twisting a plurality of tinned copper wires with the diameter of 0.01mm to 0.04 mm.
In one embodiment, the drain wire 8 includes a copper stranded conductor 81 and a third PFA insulating layer 82. Further, the copper stranded conductor 81 is formed by twisting and pressing a plurality of soft copper wires with a diameter of 0.05mm to 0.08 mm.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. Resistant flexible type light multicore cable, characterized by: the power cable comprises six power cable cores (1), two insulating twisted-pair cable cores (2) and a drain wire (8), wherein the power cable cores are formed by twisting a twisted-pair wholly aromatic copolyamide tensile fiber core (3) together, every two power cable cores (1) are arranged at intervals, the insulating twisted-pair cable cores (2) or the drain wire (8) are arranged, the outer diameter ratio of the power cable cores (1) to the insulating twisted-pair cable cores (2) to the drain wire (8) is 0.95 to 1.05, the outer diameter ratio of the twisted-pair cable cores (3) is at least 2.25 times of that of the power cable cores (1), the outer part of the twisted-pair wholly aromatic copolyamide tensile fiber core (3) is wrapped with a PTFE (4), the outer part of the cable core is sequentially wrapped with a tape wrapping layer (5) and a polyurethane outer sheath layer (6), the cable core and the fluororesin tape wrapping layer (5) are filled with an iron powder composite resin filling core (7), the power cable cores (1) comprise a first inner conductor (11) and a first PFA (12.12 mm) to PFA, and the outer diameter ratio of the power cable cores (1.12 mm is 2.2 mm.
2. The flexure-resistant lightweight multi-core cable of claim 1, wherein: the first PFA insulating layer (12) has a thickness of 0.2mm to 0.4mm.
3. The flexure-resistant lightweight multi-core cable of claim 1, wherein: the first inner conductor (11) is formed by concentrically twisting a plurality of tinned copper monofilaments with the diameter of 0.02mm to 0.05 mm.
4. The flexure-resistant lightweight multi-core cable of claim 1, wherein: the insulated twisted-pair wire core (2) comprises two twisted-pair wire cores (21) which are twisted in pairs to form a twisted-pair wire core body, a second PFA insulating layer (22) wraps the twisted-pair wire core body, and the twisted-pair wire cores (21) comprise second inner conductors (211) and foamed PFA insulating layers (212).
5. The flexure-resistant lightweight multicore cable of claim 4, wherein: the second inner conductor (211) is formed by concentrically twisting a plurality of tinned copper wires with the diameter of 0.01mm to 0.04 mm.
6. The flexure-resistant lightweight multi-core cable of claim 1, wherein: the drain wire (8) comprises a copper stranded conductor (81) and a third PFA insulating layer (82).
7. The flexure-resistant lightweight multicore cable of claim 6, wherein: the copper stranded wire conductor (81) is formed by twisting and pressing a plurality of soft copper wires with the diameter of 0.05mm to 0.08 mm.
8. The flexure-resistant lightweight multi-core cable of claim 1, wherein: the fluorine resin tape wrapping layer (5) is a PTFE, PFA, FEP or ETFE resin tape wrapping layer.
9. The flexure-resistant lightweight multicore cable of claim 8, wherein: the lay length of the fluorine resin tape winding cladding (5) is 0.5 to 4 times of the tape width.
10. The flexure-resistant lightweight multi-core cable of claim 1, wherein: the thickness of the fluororesin tape winding cladding (5) and the thickness of the polyurethane outer sheath layer (6) are both 0.5mm to 0.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220296174.7U CN218414016U (en) | 2022-02-14 | 2022-02-14 | Bending-resistant light multi-core cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220296174.7U CN218414016U (en) | 2022-02-14 | 2022-02-14 | Bending-resistant light multi-core cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218414016U true CN218414016U (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220296174.7U Active CN218414016U (en) | 2022-02-14 | 2022-02-14 | Bending-resistant light multi-core cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218414016U (en) |
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2022
- 2022-02-14 CN CN202220296174.7U patent/CN218414016U/en active Active
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