CN220324186U - Fracture-preventing high-frequency signal insulation shielding cable - Google Patents
Fracture-preventing high-frequency signal insulation shielding cable Download PDFInfo
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- CN220324186U CN220324186U CN202321742090.2U CN202321742090U CN220324186U CN 220324186 U CN220324186 U CN 220324186U CN 202321742090 U CN202321742090 U CN 202321742090U CN 220324186 U CN220324186 U CN 220324186U
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- frequency signal
- fracture
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- 238000009413 insulation Methods 0.000 title claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000004743 Polypropylene Substances 0.000 claims abstract description 20
- -1 polypropylene Polymers 0.000 claims abstract description 20
- 229920001155 polypropylene Polymers 0.000 claims abstract description 20
- 229910000889 permalloy Inorganic materials 0.000 claims abstract description 19
- 239000000805 composite resin Substances 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- QHSJIZLJUFMIFP-UHFFFAOYSA-N ethene;1,1,2,2-tetrafluoroethene Chemical compound C=C.FC(F)=C(F)F QHSJIZLJUFMIFP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 10
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 6
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 6
- 229910000077 silane Inorganic materials 0.000 claims abstract description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 30
- 239000004020 conductor Substances 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 13
- 238000005253 cladding Methods 0.000 claims description 6
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 230000017105 transposition Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000009713 electroplating Methods 0.000 claims description 2
- 239000011162 core material Substances 0.000 abstract description 96
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000010618 wire wrap Methods 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 230000002968 anti-fracture Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 3
- 239000004760 aramid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Abstract
The utility model discloses an anti-fracture high-frequency signal insulation shielding cable, which comprises two power supply wire cores, a signal wire core and an aramid fiber filling core material which are twisted together to form a cable core, wherein the outside of the cable core is sequentially coated with an iron powder polypropylene composite resin gap wrapping layer, a copper wire wrapping total shielding layer, an outer permalloy layer, an ETFE resin outer wrapping antifriction layer and a silane grafted crosslinked high-density polyethylene sheath layer, the signal wire core comprises two insulation wire core twisted pairs and is twisted together with the AFRP reinforced filling core material to form a wire core body, the outside of the wire core body is sequentially coated with an ETFE resin inner wrapping antifriction layer, a copper wire wrapping sub-shielding layer and an inner permalloy layer, and the outer diameter of the power supply wire core is smaller than that of the insulation wire core. The cable core structure of the cable is balanced, the occurrence of breakage of the shielding layer caused by excessive deformation of the cable core is effectively prevented, the peripheral distance between the total shielding layer and the cable core is kept uniform, the long-distance transmission attenuation of high-frequency signals is reduced, and the durability is better.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to an anti-fracture high-frequency signal insulation shielding cable.
Background
The control cable is used as a connecting wire between various electric appliances, instruments, meters and automatic devices, plays a role in transmitting various electric energy signals such as starting, operation, control, signal display, measurement and the like, and is widely applied to control, measurement, signal transmission, alarm and interlocking systems of industrial and mining enterprises, transformer stations, traffic, science and technology departments and the like. However, the electromagnetic noise environment of an industrial application site is often quite complex, and the radiation or conduction (EMI) of electromagnetic noise may severely interfere with the proper operation of the device. In this process, an important type of carrier for electromagnetic noise propagation is the various cables used in the production line equipment. Some of them are noise sources and some are disturbed objects. To combat electromagnetic noise interference on electrical lines, a very important way is to use cables with shielding. In the multi-core cable structure, because the asymmetric stranding of the power wire cores, the signal wire cores, the grounding wire cores and the control wire cores with different outer diameters forms a cable core, the total shielding layer outside the cable core is nonuniform in peripheral distance from the cable core, the anti-interference capability is weakened, the signal wire core high-frequency signal long-distance transmission attenuation is easy to be caused, the shielding layer of the wire core inside the cable core is extruded by the filling core material of the cable core to generate excessive deformation, the breakage and the disconnection of the shielding layer are easy to occur, the shielding performance is unstable, the electrical characteristics of the cable are influenced, and the durability is poor.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide the fracture-preventing high-frequency signal insulation shielding cable, which has the advantages that the cable core structure is more balanced, the balanced stress of each wire core is realized, the extrusion force from the filling core material of the cable core can be relieved, the occurrence of fracture of a shielding layer caused by excessive deformation of the wire core is effectively prevented, the distance between the total shielding layer and the periphery of the cable core is kept uniform, the long-distance transmission attenuation of high-frequency signals is reduced, the stable shielding performance is ensured, and the durability is better.
The utility model solves the technical problems through the following technical proposal.
The utility model provides a prevent insulating shielded cable of fracture type high frequency signal, includes two power core, a signal core and aramid fiber fill core and twine jointly and constitute the cable core, the outside cladding of cable core has iron powder polypropylene composite resin clearance in proper order around covering, copper wire winding total shielding layer, outer permalloy layer, ETFE resin outer around covering antifriction layer and silane grafting crosslinked high density polyethylene restrictive coating, the signal core includes two insulating core pair twists and twines jointly with AFRP reinforcement fill core and form the core body, the outside cladding of core body has in proper order around covering antifriction layer, copper wire winding partial shielding layer and interior permalloy layer in the ETFE resin, the power core external diameter is less than insulating core external diameter.
Preferably, the AFRP reinforced filling core material is formed by twisting a plurality of aramid fibers and is integrally bonded with thermoplastic polypropylene resin through hot melting.
Preferably, the power supply core comprises an inner conductor and an XLPE insulation layer.
Preferably, the inner conductor is a circular conductor structure formed by twisting and compacting a plurality of soft copper wires with diameters of 0.05mm to 0.12 mm.
Preferably, the insulated wire core includes a center conductor and a polyurethane insulation layer.
Preferably, the center conductor is formed by concentrically twisting a plurality of tinned copper monofilaments with the wire diameter of 0.05mm to 0.1 mm.
Preferably, the copper wire winding total shielding layer is formed by spirally winding a plurality of tinned copper wires with the wire diameters of 0.08mm to 0.3mm outside the iron powder polypropylene composite resin gap winding cladding side by side, and the outer surface of the copper wire winding total shielding layer is electroplated to form the permalloy layer.
Preferably, the copper wire winding sub-shielding layer is formed by spirally winding a plurality of tinned copper wires with the wire diameters of 0.04mm to 0.12mm outside the winded antifriction layer in the ETFE resin side by side, and the inner permalloy layer is formed by electroplating the outer surface of the copper wire winding sub-shielding layer.
Preferably, the outer diameter of the power wire core is not smaller than 1mm, and the outer diameter of the insulating wire core is not larger than 1.8mm.
Preferably, the iron powder polypropylene composite resin gap wrapping layer is an iron powder polypropylene composite resin gap wrapping structure, and the winding direction of the iron powder polypropylene composite resin gap wrapping layer is the same as the cable core twisting direction and the cable core twisting direction.
The beneficial effects of the utility model are as follows:
1. through increasing AFRP in the signal wire core and strengthening filling core and two insulating wire cores and strand jointly, AFRP strengthens filling core's mechanical strength and tensile elastic modulus and is greater than aramid fiber and fills the core, help improving the equilibrium of the whole structure of core body, lateral pressure when bearing the cable core bending, help slowing down the extrusion force that comes from the inside aramid fiber of cable core fills the core, restrain signal wire core structural deformation, thereby be favorable to preventing the fracture of branch shielding layer and take place, the winding package antifriction layer forms excellent slidability in the ETFE resin, help reducing the local stress concentration of branch shielding layer, improve the pliability, reduce broken silk, guarantee stable high frequency transmission characteristic.
2. Optimize cable core structure, make the power core external diameter be less than insulating core external diameter, with aramid fiber packing core transposition formation cable core, ensure cable core inner structure balanced, the stress can more evenly distributed on signal core and power core, prevent cable core structure loose around the covering through the iron powder polypropylene composite resin clearance, and make total shielding layer fully contact interior permalloy layer through the clearance part, total shielding layer keeps the homogeneity with cable core peripheral distance, be favorable to reducing high frequency signal long distance transmission attenuation, guarantee noise shielding's stability. The ETFE resin is externally wrapped with the antifriction layer to form excellent slidability, small sliding friction resistance, and the flexibility and bending resistance of the cable are improved, so that the cable is beneficial to inhibiting the breakage and disconnection of the total shielding layer, and has better durability.
3. The tinned copper wires forming the total shielding layer and the sub-shielding layer are closely connected into a whole through the permalloy layer, so that the bending resistance is improved, the shielding layer is prevented from loosening and breaking, the permalloy layer can effectively fill the holes formed by the tinned copper wire winding structure, the better shielding density is ensured, the stability of the shielding performance is enhanced, the signal attenuation is reduced, and the stable and reliable electrical characteristics are ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model.
In the figure: the high-density polyethylene cable comprises a 1-power cable core, a 2-signal cable core, a 3-aramid fiber filling core, a 4-iron powder polypropylene composite resin gap wrapping layer, a 5-copper wire wrapping total shielding layer, a 6-outer permalloy layer, a 7-ETFE resin outer wrapping antifriction layer, an 8-silane grafted crosslinked high-density polyethylene sheath layer, a 9-insulating cable core, a 10-AFRP reinforced filling core, an 11-ETFE resin inner wrapping antifriction layer, a 12-copper wire wrapping sub-shielding layer, a 13-inner permalloy layer, a 14-inner conductor, a 15-XLPE insulating layer, a 16-center conductor and a 17-polyurethane insulating layer.
Detailed Description
In order to more clearly illustrate the present utility model, the present utility model will be further described with reference to preferred embodiments and the accompanying drawings. Like parts in the drawings are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this utility model is not limited to the details given herein.
Referring to fig. 1, the fracture-preventing high-frequency signal insulation shielding cable in the embodiment of the utility model comprises two power wire cores 1, one signal wire core 2 and an aramid fiber filling core material 3 which are twisted together to form a cable core. In one embodiment, the power cord 1 comprises an inner conductor 14 and an XLPE insulation layer 15, in particular, the inner conductor 14 is a circular conductor structure formed by twisting and compacting a plurality of soft copper wires with diameters of 0.05mm to 0.12 mm. The signal wire core 2 comprises two insulating wire cores 9 which are twisted in pairs and are twisted together with an AFRP reinforced filling core material 10 to form a wire core body, and further, the AFRP reinforced filling core material 10 is formed by twisting a plurality of aramid fibers and is bonded with thermoplastic polypropylene resin into a whole through hot melting. In one embodiment, the insulated wire core 9 includes a central conductor 16 and a polyurethane insulation layer 17, and specifically, the central conductor 16 is formed by concentrically twisting a plurality of tinned copper monofilaments with a wire diameter of 0.05mm to 0.1 mm. The outside of the wire core body is sequentially coated with an ETFE resin inner wrapping antifriction layer 11, a copper wire winding sub-shielding layer 12 and an inner permalloy layer 13, in one embodiment, the copper wire winding sub-shielding layer 12 is formed by spirally winding a plurality of tinned copper wires with the wire diameters of 0.04mm to 0.12mm side by side outside the ETFE resin inner wrapping antifriction layer 11, and the outer surface of the copper wire winding sub-shielding layer 12 is electroplated to form the inner permalloy layer 13. The outer diameter of the power wire core 1 is smaller than that of the insulating wire core 9, further, the outer diameter of the power wire core 1 is not smaller than 1mm, and the outer diameter of the insulating wire core 9 is not larger than 1.8mm.
The cable core is sequentially coated with an iron powder polypropylene composite resin gap wrapping layer 4, a copper wire wrapping total shielding layer 5, an outer permalloy layer 6, an ETFE resin outer wrapping antifriction layer 7 and a silane grafted crosslinked high-density polyethylene sheath layer 8. In one embodiment, the iron powder polypropylene composite resin gap wrapping layer 4 is an iron powder polypropylene composite resin gap wrapping structure, and the winding direction of the iron powder polypropylene composite resin gap wrapping layer 4 is the same as the cable core twisting direction and the cable core twisting direction. In one embodiment, the copper wire winding total shielding layer 5 is formed by spirally winding a plurality of tinned copper wires with the wire diameters of 0.08mm to 0.3mm outside the iron powder polypropylene composite resin gap winding layer 4 side by side, and the outer surface of the copper wire winding total shielding layer 5 is electroplated to form the outer permalloy layer 6.
It should be understood that the foregoing examples of the present utility model are provided merely for clearly illustrating the present utility model and are not intended to limit the embodiments of the present utility model, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present utility model as defined by the appended claims.
Claims (9)
1. Anti-breaking high-frequency signal insulation shielding cable, which is characterized in that: including two power core (1), a signal core (2) and aramid fiber fill core (3) transposition jointly and constitute the cable core, the outside cladding of cable core has iron powder polypropylene composite resin clearance in proper order around covering (4), copper wire winding total shielding layer (5), outer permalloy layer (6), ETFE resin is outside around covering antifriction layer (7) and silane grafting crosslinked high density polyethylene restrictive coating (8), signal core (2) include two insulating core (9) pair twist and with AFRP reinforce fill core (10) transposition jointly form the core body, the outside cladding of core body has in proper order in the ETFE resin around covering antifriction layer (11), copper wire winding branch shielding layer (12) and interior permalloy layer (13), power core (1) external diameter is less than insulating core (9) external diameter.
2. The fracture-resistant high-frequency signal insulation shield cable according to claim 1, characterized in that: the power supply wire core (1) comprises an inner conductor (14) and an XLPE insulating layer (15).
3. The fracture-resistant high-frequency signal insulation shield cable according to claim 2, characterized in that: the inner conductor (14) is a circular conductor structure formed by twisting and compacting a plurality of soft copper wires with the diameters of 0.05mm to 0.12 mm.
4. The fracture-resistant high-frequency signal insulation shield cable according to claim 1, characterized in that: the insulated wire core (9) comprises a central conductor (16) and a polyurethane insulating layer (17).
5. The fracture-resistant high-frequency signal insulation shield cable according to claim 4, characterized in that: the central conductor (16) is formed by concentrically twisting a plurality of tinned copper monofilaments with the wire diameters of 0.05mm to 0.1 mm.
6. The fracture-resistant high-frequency signal insulation shield cable according to claim 1, characterized in that: the copper wire winding total shielding layer (5) is formed by spirally winding a plurality of tinned copper wires with the wire diameters of 0.08mm to 0.3mm outside the iron powder polypropylene composite resin gap winding cladding layer (4), and the outer surface of the copper wire winding total shielding layer (5) is electroplated to form the outer permalloy layer (6).
7. The fracture-resistant high-frequency signal insulation shield cable according to claim 1, characterized in that: the copper wire winding sub-shielding layer (12) is formed by spirally winding a plurality of tinned copper wires with the wire diameters of 0.04mm to 0.12mm outside the winded antifriction layer (11) in the ETFE resin side by side, and the inner permalloy layer (13) is formed by electroplating the outer surface of the copper wire winding sub-shielding layer (12).
8. The fracture-resistant high-frequency signal insulation shield cable according to claim 1, characterized in that: the outer diameter of the power wire core (1) is not smaller than 1mm, and the outer diameter of the insulating wire core (9) is not larger than 1.8mm.
9. The fracture-resistant high-frequency signal insulation shield cable according to claim 1, characterized in that: the iron powder polypropylene composite resin gap wrapping layer (4) is of an iron powder polypropylene composite resin gap wrapping structure, and the wrapping direction of the iron powder polypropylene composite resin gap wrapping layer (4) is the same as the cable core twisting direction and the cable core twisting direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321742090.2U CN220324186U (en) | 2023-07-05 | 2023-07-05 | Fracture-preventing high-frequency signal insulation shielding cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321742090.2U CN220324186U (en) | 2023-07-05 | 2023-07-05 | Fracture-preventing high-frequency signal insulation shielding cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220324186U true CN220324186U (en) | 2024-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321742090.2U Active CN220324186U (en) | 2023-07-05 | 2023-07-05 | Fracture-preventing high-frequency signal insulation shielding cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220324186U (en) |
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2023
- 2023-07-05 CN CN202321742090.2U patent/CN220324186U/en active Active
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